GB2600217A

GB2600217A - Multi-switch interlocking apparatus

Info

Publication number: GB2600217A
Application number: GB2111810.4A
Authority: GB
Inventors: Chen Wenan; Wang Sicong; Du Wei; Li Cong; Xie Qiyuan; Zhang Yongxin; Yang Haiyong; Duanmu Yuxiang; Yan Zhenjie; Ni Dan; Lu Peifang; Wu Bingqing
Original assignee: STATE NUCLEAR POWER ENGINEERING CO; Shanghai Nuclear Engineering Research and Design Institute Co Ltd; Kehua Data Co Ltd
Current assignee: STATE NUCLEAR POWER ENGINEERING CO; Shanghai Nuclear Engineering Research and Design Institute Co Ltd; Kehua Data Co Ltd
Priority date: 2019-08-13
Filing date: 2020-03-05
Publication date: 2022-04-27
Anticipated expiration: 2040-03-05
Also published as: GB2600217A9; CN110517912A; GB2600217B; WO2021027275A1; CN110517912B; GB202111810D0

Abstract

Provided in the present solution is a multi-switch interlocking apparatus, related to the technical field of power supply and power distribution apparatus, comprising a first rotating rod used for controlling the opening or closing of an end switch, a second rotating rod used for controlling the opening or closing of another end switch, a first connecting rod mechanism rotatably connected to the first rotating rod and used for locking the second rotating rod, and a second connecting rod mechanism rotatably connected to the second rotating rod and used for locking the first rotating rod. The multi-switch interlocking apparatus of the present solution implements multiple switch interlocking modifications and adjustments, implements the goal of other switches being locked and prevented from being opened when one switch is opened, thus preventing a short circuit accident from be caused by an inadvertent operation of opening other switches when a switch is opened. The structure is compact and simple to install and operate; moreover, by using a mechanical interlocking scheme, the remaining switches are locked when one switch is opened, safeness and stability are improved.

Description

Multi-Switch Interlocking Device

TECHNICAL FIELD

100011 The disclosure belongs to the technical field of power supply and distribution equipment, and particularly relates to a multi-switch interlocking device. BACKGROUND [0002] In a direct current power supply system of an uninterruptible power supply, the connection and disconnection among a charger, a charging and discharging unit, and a storage battery are generally realized through an isolating switch so that the charger supplies power to a battery and a load, and the charging and discharging maintenance of the battery is realized. However, when the isolating switch is operated, two or more isolating switches are easy to be switched on at the same time by mistake, and at the moment, vicious accidents such as multiple power supply short circuits and the like can occur. In order to avoid this, an interlocking structure must be added to multiple-way power supply switches. When a switch on a way is already closed, switches of other ways cannot be closed so that the simultaneous switching on of multiple isolating switches caused by an operation error is avoided. However, most of the existing interlocking structures at present adopt electrical engineering to control the interlocking among multiple isolating switches, having poor stability and reliability.

SUMMARY

[0003] The disclosure aims to provide a multi-switch interlocking device and aims to solve the problem that existing interlocking structures at present of isolating switches mostly adopt electrical engineering to perform controlling with poor stability and reliability.

[0004] In order to solve the problem, the disclosure provides a multi-switch interlocking device. The multi-switch interlocking device comprises a first rotating rod for controlling an opening or closing of an end part switch, a second rotating rod for controlling an opening or closing of another end part switch, a first link mechanism which is in transmission connection with the first rotating rod and is used for locking the second rotating rod, and a second link mechanism which is in transmission connection with the second rotating rod and is used for locking the first rotating rod; when the first rotating rod controls the end part switch to open through rotating, the first rotating rod locks and fixes the second rotating rod through the first link mechanism; when the second rotating rod controls the another end part switch to open through rotating, the second rotating rod locks and fixes the first rotating rod through the second link mechanism. 100051 In one embodiment, the multi-switch interlocking device further comprises a third rotating rod which is arranged between the first rotating rod and the second rotating rod and is used for controlling an opening or closing of an intermediate switch, and a third link mechanism which is in transmission connection with the third rotating rod and is used for locking the first rotating rod and the second rotating rod; when the third rotating rod controls the intermediate switch to open through rotating, the first rotating rod and the second rotating rod are locked and fixed through the third link mechanism; when the first rotating rod controls the end part switch to open through rotating, the second rotating rod and the third rotating rod are locked and fixed through the first link mechanism; when the second rotating rod controls the another end part switch to open through rotating, the second rotating rod locks and fixes the first rotating rod and the third rotating rod through the second link mechanism.

[0006] In one embodiment, the number of both the third rotating rod and the third link mechanism is multiple; when one of the third rotating rods controls the intermediate switch to open through rotating, the third rotating rod locks and fixes the first rotating rod, the second rotating rod, and the other third rotating rods through the third link mechanism.

100071 In one embodiment, an upper part of the first link mechanism is arranged with a clamping groove for locking the second rotating rod and the third rotating rod, and an end part of the clamping groove is arranged with a recessing hole for accommodating the second rotating rod or the third rotating rod and communicating with the clamping groove; an upper part of the second link mechanism is arranged with a clamping groove for locking the first rotating rod and the third rotating rod, and an end part of the clamping groove is arranged with a recessing hole for accommodating the first rotating rod or the third rotating rod and communicating with the clamping groove; an upper part of the third link mechanism is arranged with a damping groove for locking the first rotating rod, the second rotating rod and the other third rotating rods, and an end part of the clamping groove is arranged with a recessing hole for accommodating the first rotating rod or the second rotating rod or the third rotating rod and communicating with the clamping groove.

100081 In one embodiment, the recessing holes in the first link mechanism are located at one end, close to the first rotating rod, of the clamping groove, the recessing holes in the second link mechanism are located at one end, close to the second rotating rod, of the clamping groove, and the recessing holes in the third link mechanism are located at one end, close to the third rotating rod, of the clamping groove.

100091 In one embodiment, the first link mechanism, the second link mechanism, and the third link mechanism are stacked along a length direction of the first rotating rod; when switches are all in a closed status, the first rotating rod is located in the recessing hole in the second link mechanism and the third link mechanism, the second rotating rod is located in a recessing hole in the first link mechanism and the third link mechanism, and the third rotating rod is located in the recessing hole in the first link mechanism, the second link mechanism, and the other third link mechanisms.

[0010] In one embodiment, the first link mechanism comprises a first sliding sheet arranged on a side surface of the first rotating rod, and a first transmission structure sleeved outside the first rotating rod and used for connecting the first rotating rod and the first sliding sheet.

[0011] In one embodiment, the first transmission structure comprises a first rotating sheet which is arranged on the first rotating rod and can rotate along with the first rotating rod, and a first connecting sheet which is arranged between the first rotating sheet and the first sliding sheet, with two end parts of the first connecting sheet being respectively hinged with end parts of the first rotating sheet and the first sliding sheet; when the first rotating rod rotates, the first rotating sheet is driven to rotate together, and the first sliding sheet is driven to move through the first connecting sheet.

[0012] In one embodiment, the third link mechanism comprises two third sliding sheets respectively arranged on two sides of the third rotating rod, and a third transmission structure for connecting the third rotating rod and the third sliding sheet; the third transmission structure comprises a third rotating sheet which is arranged on the third rotating rod and can rotate along with the third rotating rod, and two third connecting sheets which are arranged between the third rotating sheet and the third sliding sheet, with two end parts of the third connecting sheet being respectively hinged with end parts of the third rotating sheet and the third sliding sheet; when the third rotating rod rotates, the third rotating sheet is driven to rotate, and the two third sliding sheets are driven to move through the two third connecting sheets.

[0013] In one embodiment, the multi-switch interlocking device further comprises a support frame located between the first link mechanism and the end part switch and used for mounting the first link mechanism and the second link mechanism, and a guiding fixture seat arranged on the support frame and used for supporting and mounting the first link mechanism and the second link mechanism.

190141 According to the multi-switch interlocking device provided by the disclosure, the opening and closing of different switches are respectively controlled through the rotation of the first rotating rod and the second rotating rod. The device is farther arranged with a first link mechanism which is in transmission connection with the first rotating rod and is used for locking the second rotating rod, and a second link mechanism which is in transmission connection with the second rotating rod and is used for locking the first rotating rod; when the first rotating rod controls the end part switch to open through rotating, the first rotating rod locks and fixes the second rotating rod through the first link mechanism; when the second rotating rod controls another end part switch to open through rotating, the second rotating rod locks and fixes the first rotating rod through the second link mechanism. According to the multi-switch interlocking device of the application, the modification and adjustment of the interlocking of multiple switches can be realized, the purpose that when one switch is turned on, the other switches are locked and cannot be opened is realized, and short circuit accidents caused by a misoperation of opening the other switches when one switch is opened are prevented. The multi-switch interlocking device is small in structure and volume, and simple to mount and operate. By means of mechanical interlocking, the other switches are locked when one switch is turned on, making the multi-switch interlocking device have better safety and stability.

BRIEF DESCRIPTION OF THE DRAWINGS

190151 Fig. 1 is a perspective view showing a structure of a multi-switch interlocking device provided by an embodiment of the present disclosure; [0016] Fig. 2 is a schematic top view of a structure of the multi-switch interlocking device of Fig. 1; [0017] Fig. 3 is a schematic view showing a structure of a first sliding sheet and a third sliding sheet adopted in an embodiment of the present disclosure; [0018] Fig. 4 is a schematic view showing a structure of a first link mechanism adopted in an embodiment of the present disclosure; [0019] Fig. 5 is a schematic view showing a structure of a third link mechanism adopted in an embodiment of the present disclosure.

[0020] In the drawings: 1, first rotating rod; 2, second rotating rod; 3, third rotating rod; 4, first link mechanism; 41, first sliding sheet; 42, first transmission structure; 421, first rotating sheet; 422, first connecting sheet; 43, recessing hole; 44, clamping groove; 5, third fink mechanism; 51, third sliding sheet; 52, third transmission structure; 521, third rotating sheet; 522, third connecting sheet; 6, second link mechanism; 7, support frame; 8, guiding fixture seat; and 9, status indicating board.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

100211 In order to make the technical problems, technical solutions, and beneficial effects to be solved by the application clearer, the following further describes the application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to be limiting thereof.

190221 Referring to Fig. 1 and Fig. 2 together, the multi-switch interlocking device provided by the present application will now be described. The multi-switch interlocking device includes a first rotating rod 1 for controlling the opening or closing of an end part switch, a second rotating rod 2 for controlling the opening or closing of another end part switch, a first link mechanism 4 which is in transmission connection with the first rotating rod 1 and is used for locking the second rotating rod 2, and a second link mechanism 6 which is in transmission connection with the second rotating rod 2 and is used for locking the first rotating rod 1; when the first rotating rod 1 controls the end part switch to open through rotating, the first rotating rod 1 locks and fixes the second rotating rod 2 through the first link mechanism 4; when the second rotating rod 2 controls the another end part switch to open through rotating, the second rotating rod 2 locks and fixes the first rotating rod 1 through the second link mechanism 6.

190231 Compared with the prior art, the multi-switch interlocking device provided by the embodiment respectively controls the opening and closing of different switches through the rotation of the first rotating rod land the second rotating rod 2. The device is further arranged with a first link mechanism 4 which is in transmission connection with the first rotating rod 1 and is used for locking the second rotating rod 2, and a second link mechanism 6 which is in transmission connection with the second rotating rod 2 and is used for locking the first rotating rod 1; when the first rotating rod 1 controls the end part switch to open through rotating, the first rotating rod 1 locks and fixes the second rotating rod 2 through the first link mechanism 4; when the second rotating rod 2 controls another end part switch to open through rotating, the second rotating rod 2 locks and fixes the first rotating rod 1 through the second link mechanism 6. According to the multi-switch interlocking device of the application, the mutual locking among multiple switches can be achieved, the purpose that when one switch is turned on, the other switches are locked and cannot be opened is achieved, and short circuit accidents caused when a certain switch is opened, other switched are opened due to misoperation are prevented. The multi-switch interlocking device has the advantages that the structure and volume are small, the mounting and operation are simple, the other switches are locked when one switch is turned on by adopting a mechanical interlocking mode, the possible failure of electric appliance interlocking can be effectively prevented, and the stability and the reliability of the interlocking of multiple switches are improved.

100241 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. Ito Fig. 5 together, the multi-switch interlocking device further includes a third rotating rod 3 which is arranged between the first rotating rod 1 and the second rotating rod 2 and is used for controlling the opening or closing of an intermediate switch, and a third link mechanism 5 which is in transmission connection with the third rotating rod 3 and is used for locking the first rotating rod 1 and the second rotating rod 2; when the third rotating rod 3 controls the intermediate switch to open through rotating, the first rotating rod 1 and the second rotating rod 2 are locked and fixed through the third link mechanism 5; when the first rotating rod i controls the end part switch to open through rotating, the second rotating rod 2 and the third rotating rod 3 are locked and fixed through the first link mechanism 4; when the second rotating rod 2 controls the another end part switch to open through rotating, the second rotating rod 2 locks and fixes the first rotating rod 1 and the third rotating rod 3 through the second link mechanism 6. The arrangement of the third rotating rod 3 and the third link mechanism 5 allows the multi-switch interlocking device to achieve an interlocking among three switches. The purpose that when one switch is turned on, the other switches are locked and cannot be opened is achieved, and short circuit accidents caused when a certain switch is opened, other switched are opened due to misoperation are prevented. The multi-switch interlocking device has the advantages that the structure and volume are small, the mounting and operation are simple, the other switches are locked when one switch is turned on by adopting a mechanical interlocking mode, the possible failure of electric appliance interlocking can be effectively prevented, and the stability and the reliability of the interlocking of multiple switches are improved.

100251 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. land Fig. 2, the number of the third rotating rod 3 and the third link mechanisms is multiple; when one of the third rotating rods 3 controls the intermediate switch to open through rotating, the third rotating rod 3 locks and fixes the first rotating rod 1, the second rotating rod 2 and the other third rotating rods 3 through the third link mechanism 5. The number of the third rotating rod 3 and the third link mechanisms is multiple so that the multi-switch interlocking device can realize the interlocking of multiple (more than three) switches. When one of the third rotating rods 3 controls the intermediate switch to be open or close through rotating, the other third rotating rods 3, the first rotating rod 1, and the second rotating rod 2 are all locked, and other switches are prevented from being opened due to errors.

[0026] As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. ito Fig. 2, the upper part of the first link mechanism 4 is arranged with a clamping groove 44 for locking the second rotating rod 2 and the third rotating rod 3, and the end part of the clamping groove 44 is arranged with a recessing hole 43 for accommodating the second rotating rod 2 or the third rotating rod 3 and communicating with the clamping groove 44; the upper part of the second link mechanism 6 is arranged with a clamping groove 44 for locking the first rotating rod l and the third rotating rod 3, and the end part of the clamping groove 44 is arranged with a recessing hole 43 for accommodating the first rotating rod 1 or the third rotating rod 3 and communicating with the damping groove 44; the upper part of the third link mechanism 5 is arranged with a damping groove 44 for locking the first rotating rod I, the second rotating rod 2 and the other third rotating rods 3, the end part of the clamping groove 44 is arranged with a recessing hole 43 for accommodating the first rotating rod 1 or the second rotating rod 2 or the third rotating rod 3 and communicating with the clamping groove 44, and the recessing hole 43 is arranged on the first sliding sheet 41; the recessing hole 43 is for accommodating the second rotating rod 2 and multiple third rotating rods 3; the clamping groove 44 is arranged on the side surface of the recessing hole 43 and is communicated with the recessing hole 43, and the length of the clamping groove 44 is arranged along the movement direction of the first sliding sheet 41; when the first rotating rod I rotates, the first rotating rod 1 drives the first sliding sheet 41 to move through the first transmission structure 42 such that the second rotating rod 2 and multiple third rotating rods 3 are gripped and fixed in the clamping groove 44. Both the second rotating rod 2 and the third rotating rod 3 penetrate through the first sliding sheet 41 and are rotatably located in the recessing hole 43. When all switches are in a closed status, the second rotating rod 2 and multiple third rotating rods 3 can freely rotate in the recessing hole 43 without affecting the use of the other switches. When a certain switch needs to be opened, the first rotating rod 1 is rotated, and at this time, the first rotating rod 1 pulls the first sliding sheet 41 to move close to the direction of the first rotating rod 1 through the first transmission structure 42 such that the second rotating rod 2 and multiple third rotating rods 3 for controlling other switches in a not-turned-on status are clamped and fixed into the clamping groove 44 from the recessing hole 43. The second rotating rod 2 and/or multiple third rotating rods 3 for controlling other switches in the not-turned-on status are gripped and fixed such that the purpose of locking and fixing the other switches when one switch is opened is achieved, and the multi-switch interlocking device is simple in structure, fast and convenient to operate and good in stability.

100271 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig. 3, the recessing holes 43 of the first link mechanism 4 are located at one end, close to the first rotating rod 1, of the clamping groove 44, the recessing holes 43 of the second link mechanism 6 are located at one end, close to the second rotating rod 2, of the clamping groove 44, and the recessing holes 43 of the third link mechanism 5 are located at one end, close to the third rotating rod 3, of the clamping groove 44. According to the arrangement mode adopted by the clamping groove 44 and the recessing hole 43, when the first rotating rod i or the second rotating rod 2 or the third rotating rod 3 rotates, the other rotating rods can be more conveniently locked and fixed, so that the switch interlocking device is more convenient to use.

100281 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. i and Fig. 3, the recessing hole 43 is an arc hole, the clamping groove 44 is a rectangular hole communicated with the recessing hole 43, and the second rotating rod 2 and/or the third rotating rod 3 are respectively arranged with clamping surfaces matched with the clamping groove 44. Due to the arrangement of the clamping surface, when the first sliding sheet 41 moves, the second rotating rod 2 and/or the third rotating rod 3 are driven to enter the clamping groove 44, and the second rotating rod 2 and/or the third rotating rod 3 are fixed. The number of the clamping surface is two, and the two clamping surfaces are arranged in parallel. The distance between the two clamping surfaces is fitted with the width dimension of the clamping groove 44. When the first sliding sheet 41 or the second sliding sheet moves, the first rotating rod 1 or the second rotating rod 2 enters the clamping groove 44 and fixes the first rotating rod 1 or the second rotating rod 2. The recessing hole 43 and the clamping groove 44 adopt such shape respectively so that the gripping and locking of the multi-switch interlocking device is firmer.

[0029] Optionally, the cross sections of the first rotating rod I, the second rotating rod 2, and the third rotating rod 3 are rectangular, and the width dimension of the rectangle is fitted with the width dimension of the clamping groove 44 such that the first rotating rod 1 or the second rotating rod 2 can be more firmly fixed in the clamping groove 44. The diameter dimension of the recessing hole 43 is larger than the length of the diagonal line of the rectangle such that it is more convenient to rotate the first rotating rod 1 or the second rotating rod 2 in the recessing hole 43.

[0030] As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig. 4, the first link mechanism 4, the second link mechanism 6, and the third link mechanism 5 are stacked along the length direction of the first rotating rod 1; when the switches are all in off status, the first rotating rod 1 is located in the recessing holes 43 of the second link mechanism 6 and the third link mechanism 5, the second rotating rod 2 is located in the recessing holes 43 of the first link mechanism 4 and the third link mechanisms, and the third rotating rod 3 is located in the recessing holes 43 of the first link mechanism 4, the second link mechanism 6 and other third link mechanisms 5. The number of the clamping groove 44 and the recessing hole 43 is multiple, and all the clamping grooves 44 and the recessing holes 43 are arranged along the length direction of the first link mechanism 4 or the second link mechanism 6 or the third link mechanism 5. By adopting the distribution mode of the first link mechanism 4, the second link mechanism 6 and the third link mechanism 5, the volume occupied by the first link mechanism 4, the second link mechanism 6 and the third link mechanism 5 can be further saved, and the structure of the multi-switch interlocking device can be more compact.

190311 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig 4, the first link mechanism 4 includes a first sliding sheet 41 arranged on the side surface of the first rotating rod 1 and a first transmission structure 42 sleeved outside the first rotating rod i and used for connecting the first rotating rod land the first sliding sheet 41. The first link mechanism 4 adopts the structure such that when the first rotating rod 1 is rotated to control the switch of the end part (i.e. the switches located at two ends of the switch row) to open, the first rotating rod idrives the first sliding sheet 41 to move through the first transmission structure 42, and the second rotating rod 2, the first rotating rod 1 and multiple third rotating rods 3 are gripped and fixed through the clamping groove 44 arranged on the first sliding sheet 41.

100321 Alternatively, the first sliding sheet 41 can slide in a direction parallel to the connecting line between the first rotating rod 1 and the second rotating rod 2. When the first rotating rod 1 controls the end part switch to be in off status, the clamping groove 44 on the first sliding sheet 41 is in a free status of no contact with the second rotating rod 2 and the third rotating rod 3, and the second rotating rod 2 and the third rotating rod 3 are both located in the recessing hole 43. When the first rotating rod 1 controls the end part switch to be in an open status through rotating, the first rotating rod 1 drives the first sliding sheet 41 to move through the first transmission structure 42, and the first sliding sheet 41 drives the clamping groove 44 to move together with the recessing hole 43. At the time, the second rotating rod 2 and/or the third rotating rod 3 can slide into the clamping groove 44 from the recessing hole 43, and the second rotating rod 2 and/or the third rotating rod 3 are gripped and fixed through the clamping groove 44.

190331 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig. 4, the first transmission structure 42 includes a first rotating sheet 421 and a first connecting sheet 422. The first rotating sheet 421 is arranged on the first rotating rod 1 and can rotate along with the first rotating rod 1, and is used for driving the first sliding sheet 41 to move when the first rotating rod i rotates; the first connecting sheet 422 is arranged between the first rotating sheet 421 and the first sliding sheet 41, and two end parts of the first connecting sheet 422 are respectively hinged with end parts of the first rotating sheet 421 and the first sliding sheet 41; when the first rotating rod 1 rotates, the first rotating sheet 421 is driven to rotate together, and the first sliding sheet 41 is pulled to move towards or away from the second rotating rod 2 through the first connecting sheet 422. By adopting the structure, the first transmission structure 42 converts the rotation of the first rotating rod 1 into the linear movement of the first sliding sheet 41 through the arrangement of the first rotating sheet 421 and the first connecting sheet 422, and it is simple in structure and convenient to use.

190341 Optionally, the first rotating sheet 421 is sleeved outside the first rotating rod 1, the first rotating sheet 421 is also arranged with a polygonal through hole for the first rotating rod 1 to pass through, the first rotating rod 1 is also arranged with a polygonal clamping part fitted with the polygonal through hole in shape, and the polygonal through hole is mated with the polygonal clamping part to clamp and fix the first rotating sheet 421; in addition, when the first rotating rod 1 rotates, the first rotating sheet 421 is driven to simultaneously rotate such that relative sliding between the first rotating sheet 421 and the first rotating rod 1 is prevented. The structure is simple to disassemble and convenient to mount.

[0035] Optionally, the first transmission structure 42 includes a rotating gear arranged on the first rotating rod 1 and coaxially arranged with the first rotating rod 1, and a driving rack arranged on the side surface of the first sliding sheet 41 and meshed with the rotating gear. The rotating gear can rotate together with the first rotating rod 1, and when the first rotating rod 1 rotates, the first sliding sheet 41 is driven to move through the rotation of the rotating gear. The rotation of the first rotating rod 1 is converted into the linear movement of the first sliding sheet 41 by the arrangement of the rotating gear and the driving rack.

[0036] As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. 3 and Fig. 5, the second link mechanism 6 has the same structure as the first link mechanism 4. The second link mechanism 6 includes a second sliding sheet arranged on the side surface of the second rotating rod 2, and a second transmission structure for connecting the second rotating rod 2 and the second sliding sheet. The structure and working mode of the second sliding sheet, the second transmission structure, and the clamping hole and the recessing hole 43 is the same as those of the first sliding sheet 41, the first transmission structure 42, and the first locking structure 43, except that the mounting position and dimension are different.

[0037] As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig. 5, the third link mechanism 5 includes two third sliding sheets 51 respectively arranged at both sides of the third rotating rod 3, and a third transmission structure 52 for connecting the third rotating rod 3 and the third sliding sheet 51. The third link mechanism 5 adopts the structure such that when the third rotating rod 3 controls the intermediate switch (i.e. the switch located in the middle of the switch row) to open through rotating, the third rotating rod 3 drives the two third sliding sheets 51 to move through the third rotating mechanism, and the second rotating rod 2, the first rotating rod land the other third rotating rods 3 are gripped and fixed through the clamping hole and the recessing hole 43 arranged on the third sliding sheet 51.

[0038] As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. l and Fig. 5, the third transmission structure 52 includes a third rotating sheet 521 and a third connecting sheet 522. The third rotating sheet 521 is arranged on the third rotating rod 3 and can rotate along with the third rotating rod 3. When the third rotating rod 3 rotates, the third rotating sheet 521 drives the third sliding sheet 51 to move; the third connecting sheets 522 are two in number and are both arranged between the third rotating sheet 521 and the third sliding sheet 5i, and the two end parts of the third connecting sheets 522 are respectively hinged with the end parts of the first rotating sheet 421 and the first sliding sheet 41; when the third rotating rod 3 rotates, the third rotating sheet 521 is driven to rotate together, and the two third sliding sheets 51 are pulled to move close to the third rotating rod 3 through the two third connecting sheets 522. The third transmission structure 52 adopts the structure such that the rotation of the third rotating rod 3 is converted into the linear movement of the third sliding sheet 51 through the arrangement of the third rotating sheet 521 and the third connecting sheet 522. The structure is simple and convenient to use.

[0039] Optionally, the third rotating sheet 521 is sleeved outside the third rotating rod 3, the third rotating sheet 521 is also arranged with a polygonal through hole for the third rotating rod 3 to pass through, the third rotating rod 3 is also arranged with a polygonal clamping part fitted with the polygonal through hole in shape, and the polygonal through hole is mated with the polygonal clamping part to clamp and fix the third rotating sheet 521. In addition, when the third rotating rod 3 rotates, the third rotating sheet 521 is driven to simultaneously rotate, so that the relative sliding between the third rotating sheet 521 and the third rotating rod 3 is prevented. The structure is simple to disassemble and convenient to mount.

190401 Optionally, the third transmission structure 52 includes a rotating gear arranged on the third rotating rod 3 and coaxially arranged with the third rotating rod 3, and a driving rack arranged on the side surface of the third sliding sheet 51 and meshed with the rotating gear. The rotating gear can rotate together with the third rotating rod 3, and when the third rotating rod 3 rotates, the third sliding sheet 51 is driven to move through the rotation of the rotating gear. The rotation of the third rotating rod 3 is converted into the linear movement of the third sliding sheet 51 by the arrangement of the rotating gear and the driving rack.

100411 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. ito Fig. 2, the multi-switch interlocking device further includes a support frame 7 and a guiding fixture seat 8. The support frame 7 is located between the first link mechanism 4 and the switch, and is used for mounting the first link mechanism 4 and the second link mechanism 6; the number of the guiding fixture seats 8 is multiple and all of them are arranged on the support frame 7, and the guiding fixture seats 8 are used for supporting and mounting the first sliding sheet 41 and the second sliding sheet. Due to the arrangement of the support frame 7 and the guiding fixture seat 8, the mounting of the first sliding sheet 41 and the second sliding sheet is firmer. Meanwhile, the first sliding sheet 41 and the second sliding sheet are smoother when moving, and the structure of the embodiment is firmer.

190421 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. i and Fig. 2, the guiding fixture seat 8 includes a fixture seat body and a guiding sliding groove. The number of the fixture seat body is multiple, and the multiple fixture seat bodies are arranged on the support frame 7. The multiple fixture seat bodies are uniformly arranged along the length direction of the first sliding sheet 41; the guiding sliding grooves are arranged on the fixture seat body and are arranged at intervals along the length direction of the first rotating rod 1, and are used for accommodating the first sliding sheet 41 and the second sliding sheet. The mounting of the first sliding sheet 41 and the second sliding sheet is firmer, the first sliding sheet 41 and the second sliding sheet are smoother when moving, and the structure of the embodiment is firmer.

100431 As a specific implementation of the multi-switch interlocking device provided by the application, referring to Fig. 1, the multi-switch interlocking device also includes a status indicating board 9. The number of the status indicating board 9 is multiple, and the status indicating boards 9 are sleeved outside the first rotating rod 1, the second rotating rod 2, and the third rotating rod 3. The status indicating boards 9 are used for indicating the status of the first rotating rod 1, the second rotating rod 2, and the third rotating rod 3; the first rotating rod 1, the second rotating rod 2, and the third rotating rod 3 are arranged penetrating through the status indicating board 9. The status indicating board 9 can be arranged to conveniently indicate the status of the switch and visually remind an operator so that the multi-switch interlocking device is safer to use. Optionally, rotating handles are arranged at the end heads of the first rotating rod 1, the second rotating rod 2, and the third rotating rod 3, so that the first rotating rod 1, the second rotating rod 2 and the third rotating rod 3 can be conveniently rotated.

190441 The above are only preferred embodiments of the application and are not intended to limit the application. Any modification, equivalent replacement and improvement, and the like made within the spirit and principle of the application shall be included in the scope of the application.

Claims

CLAIMS1. A multi-switch interlocking device, comprising a first rotating rod for controlling an opening or closing of an end part switch, a second rotating rod for controlling an opening or closing of another end part switch, a first link mechanism which is in transmission connection with the first rotating rod and is used for locking the second rotating rod, and a second link mechanism which is in transmission connection with the second rotating rod and is used for locking the first rotating rod; wherein when the first rotating rod controls the end part switch to open through rotating, the first rotating rod locks and fixes the second rotating rod through the first link mechanism; when the second rotating rod controls the another end part switch to open through rotating, the second rotating rod locks and fixes the first rotating rod through the second link mechanism.
2. The multi-switch interlocking device of claim 1, wherein the multi-switch interlocking device further comprises a third rotating rod which is arranged between the first rotating rod and the second rotating rod and is used for controlling an opening or closing of an intermediate switch, and a third link mechanism which is in transmission connection with the third rotating rod and is used for locking the first rotating rod and the second rotating rod; when the third rotating rod controls the intermediate switch to open through rotating, the first rotating rod and the second rotating rod are locked and fixed through the third link mechanism; when the first rotating rod controls the end part switch to open through rotating, the second rotating rod and the third rotating rod are locked and fixed through the first link mechanism; when the second rotating rod controls the another end part switch to open through rotating, the second rotating rod locks and fixes the first rotating rod and the third rotating rod through the second link mechanism.
3. The multi-switch interlocking device of claim 2, wherein the number of both the third rotating rod and the third link mechanism is multiple; when one of the third rotating rods controls the intermediate switch to open through rotating, the third rotating rod locks and fixes the first rotating rod, the second rotating rod, and the other third rotating rods through the third link mechanism.
4. The multi-switch interlocking device of claim 3, wherein an upper part of the first link mechanism is arranged with a clamping groove for locking the second rotating rod and the third rotating rod, and an end part of the damping groove is arranged with a recessing hole for accommodating the second rotating rod or the third rotating rod and communicating with the clamping groove; an upper part of the second link mechanism is arranged with a clamping groove for locking the first rotating rod and the third rotating rod, and an end part of the clamping groove is arranged with a recessing hole for accommodating the first rotating rod or the third rotating rod and communicating with the clamping groove; an upper part of the third link mechanism is arranged with a damping groove for locking the first rotating rod, the second rotating rod and the other third rotating rods, and an end part of the clamping groove is arranged with a recessing hole for accommodating the first rotating rod or the second rotating rod or the third rotating rod and communicating with the clamping groove.
5. The multi-switch interlocking device of claim 4, wherein the recessing holes in the first link mechanism are located at one end, close to the first rotating rod, of the clamping groove, the recessing holes in the second link mechanism are located at one end, close to the second rotating rod, of the clamping groove, and the recessing holes in the third link mechanism are located at one end, close to the third rotating rod, of the clamping groove.
6. The multi-switch interlocking device of claim 5, wherein the first link mechanism, the second link mechanism, and the third link mechanism are stacked along a length direction of the first rotating rod; when switches are all in a closed status, the first rotating rod is located in the recessing hole in the second link mechanism and the third link mechanism, the second rotating rod is located in the recessing hole in the first link mechanism and the third link mechanism, and the third rotating rod is located in the recessing hole in the first link mechanism, the second link mechanism, and the other third link mechanisms.
7. The multi-switch interlocking device of any of claims 1-6, wherein the first link mechanism comprises a first sliding sheet arranged on a side surface of the first rotating rod, and a first transmission structure sleeved outside the first rotating rod and used for connecting the first rotating rod and the first sliding sheet.
8. The multi-switch interlocking device of claim 7, wherein the first transmission structure comprises a first rotating sheet which is arranged on the first rotating rod and can rotate along with the first rotating rod, and a first connecting sheet which is arranged between the first rotating sheet and the first sliding sheet, with two end parts of the first connecting sheet being respectively hinged with end parts of the first rotating sheet and the first sliding sheet; when the first rotating rod rotates, the first rotating sheet is driven to rotate together, and the first sliding sheet is driven to move through the first connecting sheet.
9. The multi-switch interlocking device of any of claims 2-6, wherein the third link mechanism comprises two third sliding sheets respectively arranged on two sides of the third rotating rod, and a third transmission structure for connecting the third rotating rod and the third sliding sheet; the third transmission structure comprises a third rotating sheet which is arranged on the third rotating rod and can rotate along with the third rotating rod, and two third connecting sheets which are arranged between the third rotating sheet and the third sliding sheet, with two end parts of the third connecting sheet being respectively hinged with end parts of the third rotating sheet and the third sliding sheet; when the third rotating rod rotates, the third rotating sheet is driven to rotate, and the two third sliding sheets are driven to move through the two third connecting sheets.
10. The multi-switch interlocking device of any of claims 1-6, wherein the multi-switch interlocking device fmther comprises a support frame located between the first link mechanism and the end part switch and used for mounting the first link mechanism and the second link mechanism, and a guiding fixture seat arranged on the support frame and used for supporting and mounting the first link mechanism and the second link mechanism.ABSTRACTMulti-Switch Interlocking Device The scheme provides a multi-switch interlocking device, belonging to the technical field of power supply and distribution equipment, comprising a first rotating rod for controlling the opening or closing of an end part switch, a second rotating rod for controlling the opening or closing of another end part switch, a first link mechanism in transmission connection with the first rotating rod and used for locking the second rotating rod, and a second link mechanism in transmission connection with the second rotating rod and used for locking the first rotating rod. According to the multi-switch interlocking device of the scheme, the modification and adjustment of the interlocking of multiple switches can be realized, the purpose that when one switch is turned on, the other switches are locked and cannot be opened is realized, and short circuit accidents caused by a mistake of opening the other switches when one switch is opened are prevented. The multi-switch interlocking device is small in structure and volume, and simple to mount and operate. By means of mechanical interlocking, the other switches are locked when one switch is turned on, making the multi-switch interlocking device have better safety and stability.