CN209747390U - Convenient to use's bypass switch operating means - Google Patents

Convenient to use's bypass switch operating means Download PDF

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Publication number
CN209747390U
CN209747390U CN201920662554.6U CN201920662554U CN209747390U CN 209747390 U CN209747390 U CN 209747390U CN 201920662554 U CN201920662554 U CN 201920662554U CN 209747390 U CN209747390 U CN 209747390U
Authority
CN
China
Prior art keywords
gravity ball
bypass switch
fixed box
switch operating
stay cord
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920662554.6U
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Chinese (zh)
Inventor
金涛
刘欣宇
张瑞
章玮
姜建
徐晓华
向新宇
沈达
邵法根
石霄峰
陈胜科
焦建立
李衡
江端
俞隽亚
王伟曦
肖溢鹏
韩一鸣
蔡剑彪
傅家伟
沈蕴华
吴景超
赵斌炎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Zhejiang Electric Power Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Zhejiang Electric Power Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Zhejiang Electric Power Co Ltd, Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Zhejiang Electric Power Co Ltd
Priority to CN201920662554.6U priority Critical patent/CN209747390U/en
Application granted granted Critical
Publication of CN209747390U publication Critical patent/CN209747390U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a convenient to use's bypass switch operating means, including fixed box with connect respectively in two stay cords at shutting gangbar both ends, fixed box passes through the mounting to be fixed on the pole, and the stay cord is kept away from the one end of shutting gangbar and is vertical to pass fixed box, and operating personnel only need stand and can realize the rotation of bypass switch shutting gangbar at subaerial pulling stay cord, and easy operation is convenient. Be equipped with protection device in the fixed box, including the friction disc, the gravity ball, connect the connecting axle of friction disc and gravity ball and the backup pad that can reciprocate, the backup pad is located gravity ball below and plays the supporting role to the gravity ball, the connecting axle rotates to be connected in the fixed box, the stay cord is located between friction disc and the fixed box inner wall, it makes the gravity ball remove and drives the friction disc rotation and compress tightly or loosen the stay cord to reciprocate the backup pad, and easy operation is convenient, can effectively prevent the maloperation stay cord, make bypass switch operating means's use safe and reliable more.

Description

Convenient to use's bypass switch operating means
Technical Field
The utility model relates to a bypass switch operating means especially relates to a convenient to use's bypass switch operating means.
Background
The bypass operation of the power distribution network is increasingly applied to daily maintenance of the power distribution network, wherein a bypass switch is used as a key device and can be matched with an overhead line and a cable line to quickly build a temporary bypass power supply line on site; after the fault and the section to be overhauled are bridged, the power supply can be led to an overhead or cable line for temporary bypass power supply through the on-off operation of the bypass switch, and uninterrupted power supply for a user is kept; isolating a fault or repairing a construction line section, and constructing the construction line section in a power failure state; and after the maintenance and construction are finished, the operation is carried out, and finally the bypass power supply circuit is withdrawn for operation through the operation of a bypass switch. In the operation of bypass, need carry out many times the break-make operation to bypass switch, at every turn through ascending a height and use insulating bar to catch on bypass switch operation pull ring and operate, all need alone to dress insulating protective apparatus in advance, alone guardianship and confirm the on-off state in whole journey on ground for the preparation time is longer, reduces work efficiency. The climbing operation has certain safety risk, and the bypass switch is hooked and pulled by using the insulating operating rod to operate the pull ring, so that the hooking and pulling operation is inconvenient because the bypass switch is far away from the ground; the whole operation process has certain safety risks while consuming time and having low efficiency. Meanwhile, the bypass switch is easy to operate by mistake for a novice, and the use is not safe enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a convenient to use's bypass switch operating means.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a convenient to use's bypass switch operating means, bypass switch includes the shutting gangbar, operating means is including connecting respectively in two stay cords at shutting gangbar both ends, operating means still includes fixed box, be equipped with on the fixed box with pole complex mounting, the stay cord is kept away from the one end of shutting gangbar and is vertically passed fixed box, be equipped with the protection device who prevents the mistake pulling stay cord in the fixed box, protection device includes the friction disc, the gravity ball, connect the connecting axle of friction disc and gravity ball and the backup pad that can reciprocate, the backup pad is located gravity ball below and supports the gravity ball, the connecting axle rotates to be connected in fixed box, the stay cord is located between friction disc and the fixed box inner wall, it makes the gravity ball remove and drive the friction disc and rotate in order to compress.
furthermore, a pull rod is arranged below the supporting plate, a through hole for the pull rod to pass through is formed in the lower end face of the fixing box, and a pull ring convenient for pulling the pull rod is arranged at one end of the pull rod, which passes through the through hole.
Furthermore, a spring is sleeved on the pull rod, and when the pull rod is pulled down, the gravity ball moves downwards under the action of gravity to drive the friction plate to rotate so as to loosen the pull rope; when the pull rod is loosened, the elastic force of the spring drives the gravity ball to move upwards so as to drive the friction plate to rotate reversely to compress the pull rope.
Furthermore, when no acting force is applied to the pull rod, the pull ring is in contact with the lower end face of the fixed box to limit the axial position of the pull rod; or a limiting plate is arranged above the gravity ball, and the gravity ball is in contact with the limiting plate to limit the axial position of the pull rod.
Furthermore, the supporting plate is connected with the fixing box in a sliding manner, a sliding groove is formed in the fixing box, and a limiting bulge matched with the sliding groove is formed in the supporting plate; or, a limiting edge is arranged in the fixing box, and a limiting groove matched with the limiting edge is arranged on the supporting plate.
Furthermore, an avoiding arc surface for avoiding the pull rope during rotation is arranged on the friction plate.
Furthermore, the connecting shaft is positioned at the lower end of the friction plate, the height of the friction plate is L, and L is more than or equal to 5mm and less than or equal to 20 mm.
Furthermore, a rotating shaft is vertically fixed on the connecting shaft and is rotationally connected with the fixed box; or a rotating shaft is fixed on the inner wall of the fixing box, and the connecting shaft is rotatably connected with the rotating shaft.
Further, the fixing piece is a hoop matched with the electric pole; or, the fixing piece is a fixing rope.
Furthermore, one ends of the two pull ropes, which are far away from the locking linkage rod, are respectively provided with indication boards with different shapes; or the two pull ropes are different in color; or, the ends of the two pull ropes far away from the locking linkage rod are respectively provided with signs of 'separating' and 'closing' marks.
After the technical scheme is adopted, the utility model has the advantages of as follows:
1. Through setting up operating means, the fixed box passes through the mounting to be fixed on the pole, the stay cord is kept away from the one end of shutting gangbar and is passed the below that the fixed box is located the fixed box, operating personnel only need stand and can realize the rotation of bypass switch shutting gangbar subaerial pulling stay cord, and then realize bypass switch's break-make, easy operation is convenient, be equipped with the protection device who prevents the mistake and pull the stay cord in addition in the fixed box, avoid dragging the stay cord carelessly in the operation work and lead to the maloperation, make bypass switch operating means's use safe and reliable more, protection device includes the friction disc, gravity ball, connecting axle and backup pad, upper and lower position through changing the backup pad, make the gravity ball can drive the friction disc and rotate in order to compress tightly the stay cord.
2. Through setting up the pull rod, the lower extreme of pull rod is provided with the pull ring, is convenient for change the position of backup pad through the pull rod, need not to open fixed box simultaneously and just can operate for the operation that reciprocates the backup pad is simple and convenient more.
3. Through setting up the spring, when operating personnel loosened the pull rod, initial position can be got back to automatically to the backup pad under the effect of spring force for the friction disc rotates the position that compresses tightly the stay cord, avoids operating personnel to forget and leads to the mistake to pull the stay cord with the backup pad recovery to the normal position, makes protection device's use more reliable.
4. Through setting up the axial position of pull ring or limiting plate restriction pull rod, avoid the too big protection device that leads to of friction disc turned angle to lose efficacy to can control the power of friction disc effect on the stay cord, avoid the too big wearing and tearing that cause the stay cord of effort.
5. The backup pad and fixed box sliding connection for the backup pad can reciprocate, and then makes the gravity ball can drive the connecting axle and rotate.
6. Dodge the cambered surface through setting up, when gravity ball moves down, the stay cord can not influence the rotation of friction disc for it is more laborsaving to operate, avoids the rotation of friction disc to cause wearing and tearing to the stay cord simultaneously.
7. Through setting up the connecting axle at the lower extreme of friction disc, reduce the influence of stay cord when as far as possible to the friction disc rotation, the highly within range 5mm to 20mm of friction disc for the friction disc is used for the friction area on the stay cord great, promotes the reliability that protection device used, and too big that also can not set up simultaneously leads to the volume of fixed box great, portable not. When the height of the friction plate is less than 5mm, the contact area between the friction plate and the pull rope is too small, and the pressing is not reliable enough; when the height of the friction plate is more than 20mm, the height of the fixing box is high, and the fixing box is inconvenient to carry.
8. The rotating shaft is rotatably connected with the fixed box or the connecting shaft is rotatably connected with the rotating shaft, so that the gravity ball can drive the friction plate to rotate to compress or loosen the pull rope.
9. The fixing piece is a hoop, the fixing box is fixed on the electric pole through the hoop, the position of the stay cord is convenient to fix, and meanwhile, the hoop is convenient to fix; or the fixing piece is a fixing rope which can be suitable for electric poles with different diameters, so that the application range of the bypass switch operating device is wider.
10. The one end of keeping away from the shutting gangbar at two stay cords sets up the sign of different shapes or sets up the sign of "dividing", "closing" or sets the colour of two stay cords to different on the sign, and the operator can distinguish two stay cords very easily, is difficult to take place the maloperation for bypass switch operating means's use safe and reliable more.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
Fig. 1 is a schematic structural diagram of a bypass switch operating device according to a first embodiment of the present invention.
fig. 2 is a schematic structural view of the bypass switch operating device according to the first embodiment of the present invention when the fixing box is opened.
Fig. 3 is a schematic structural view of a friction plate of the bypass switch operating device according to the first embodiment of the present invention when the pull rope is pressed by the friction plate.
Fig. 4 is an enlarged view of a in fig. 3.
Fig. 5 is a schematic structural view illustrating a friction plate of the bypass switch operating device according to the first embodiment of the present invention when the pull rope is released.
Fig. 6 is an enlarged view of B in fig. 5.
Fig. 7 is a schematic structural view of a friction plate of the bypass switch operating device according to the second embodiment of the present invention when the pull rope is pressed by the friction plate.
Fig. 8 is a schematic structural view of a friction plate of the bypass switch operating device according to the second embodiment of the present invention when the pull rope is released.
The names of the components marked in the figures are as follows:
100. A bypass switch; 110. locking the linkage rod; 111. an indication lever; 200. pulling a rope; 210. a sign; 300. a fixing box; 310. a box body; 311. a chute; 312. an upper mounting port; 320. a door body; 400. a protection device; 410. a friction plate; 411. avoiding the arc surface; 420. a gravity ball; 430. a connecting shaft; 440. a support plate; 450. a pull rod; 451. a pull ring; 460. a spring; 470. a rotating shaft; 480. and a limiting plate.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used in an orientation or positional relationship relative to one another only as illustrated in the accompanying drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.
The first embodiment is as follows:
As shown in fig. 1 to 6, the utility model provides a convenient to use's bypass switch operating means, bypass switch 100 includes shutting gangbar 110, operating means is including connecting respectively in two stay cords 200 at shutting gangbar 110 both ends, operating means still includes fixed box 300, be equipped with the mounting on the fixed box 300, fixed box 300 passes through the mounting and fixes on the pole, stay cord 200 keeps away from the vertical below that passes fixed box 300 and be located fixed box 300 of one end of shutting gangbar 110, operating personnel only need stand and can realize the rotation of bypass switch 100 shutting gangbar 110 at subaerial pulling stay cord 200, and then realize the break-make of bypass switch 100, and easy operation is convenient. The fixed box 300 is internally provided with a protection device 400 for preventing from pulling the pull rope 200 by mistake, so that misoperation caused by carelessly pulling the pull rope in the operation work is avoided, and the bypass switch operation device is safer and more reliable to use. Protection device 400 includes friction disc 410, gravity ball 420, connect the connecting axle 430 of friction disc 410 and gravity ball 420 and the backup pad 440 that can reciprocate, backup pad 440 is located gravity ball 420 below and plays the supporting role to gravity ball 420, connecting axle 430 rotates to be connected in fixed box 300, stay cord 200 is located between friction disc 410 and the fixed box 300 inner wall, it makes gravity ball 420 remove and drives friction disc 410 and rotate in order to compress tightly or loosen stay cord 200 to reciprocate backup pad 440, and easy operation is convenient, can effectively prevent the maloperation stay cord.
In this embodiment, the pull rod 450 is disposed below the support plate 440, the lower end surface of the fixing box 300 is provided with a through hole for the pull rod 450 to pass through, and one end of the pull rod 450 passing through the through hole is provided with a pull ring 451 convenient for pulling the pull rod 450, so that the position of the support plate 440 can be changed by pulling the pull rod 450, and the fixing box 300 can be operated without opening the fixing box 300, so that the operation of moving the support plate up and down is simpler and more convenient. In the present embodiment, the pull ring 451 is embodied as a circular pull ring, so that the pulling operation is simpler.
The pull rod 450 is sleeved with a spring 460, and when the pull rod 450 is pulled down through the pull ring 451, the gravity ball 420 moves downwards under the action of gravity to drive the friction plate 410 to rotate so as to loosen the pull rope 200; when the pull ring 451 is released, so that no force is applied to the pull rod 450, the spring force of the spring 460 drives the gravity ball 420 to move upward, thereby driving the friction plate 410 to rotate reversely to press the pull rope 200. When making on the pull rod not have the pulling force, the backup pad can get back to initial position automatically under the effect of spring force, avoids operating personnel to forget and leads to the mistake to pull the stay cord with the backup pad recovery to the normal position for protection device's use is more reliable.
When no acting force is applied to the pull rod 450, the pull ring 451 is in contact with the lower end surface of the fixed box 300 to limit the axial position of the pull rod 450, so that the failure of the protection device due to the fact that the rotation angle of the friction plate is too large is avoided, the force of the friction plate acting on the pull rope can be controlled, and the abrasion of the pull rope due to the fact that the acting force is too large is avoided.
the fixed box 300 comprises a box body 310 and a door body 320, an upper mounting opening 312 and a lower mounting opening are respectively arranged on the upper end face and the lower end face of the box body 310, the pull rope 200 vertically penetrates through the fixed box 300 through the upper mounting opening 312 and the lower mounting opening, and the upper mounting opening and the lower mounting opening are both U-shaped openings, so that the pull rope can be conveniently mounted.
The supporting plate 440 is connected with the fixing box 300 in a sliding manner, a sliding groove 311 is arranged in the fixing box 300, and a limiting protrusion matched with the sliding groove 311 is arranged on the supporting plate 440. Through spacing arch and spout cooperation, backup pad and fixed box sliding connection for the backup pad can reciprocate, and then makes the gravity ball can drive the connecting axle and rotate.
The friction plate 410 is provided with an escape arc surface 411 for escaping the rope 200 during rotation. Through setting up dodge cambered surface 411, when gravity ball 420 moved down, the stay cord can not influence the rotation of friction disc for the operation is more laborsaving, avoids the rotation of friction disc to cause wearing and tearing to the stay cord simultaneously.
The connecting shaft 430 is located at the lower end of the friction plate 410, so that the influence of the pull rope 200 on the rotation of the friction plate 410 is reduced as much as possible, the height of the friction plate 410 is L, and L is more than or equal to 5mm and less than or equal to 20mm, so that the friction area of the friction plate on the pull rope is large, the use reliability of the protection device is improved, and meanwhile, the fixing box cannot be too large to cause large volume and is inconvenient to carry. In this embodiment, L gets 10mm for the height of friction disc is moderate, and comparatively reliable to compressing tightly of stay cord.
The connecting shaft 430 is vertically fixed with a rotating shaft 470, so that the connecting shaft 430 and the rotating shaft 470 can rotate synchronously, and the rotating shaft 470 is rotatably connected with the fixed box 300, so that the gravity ball 420 can drive the friction plate 410 to rotate to press or release the pull rope 200.
The mounting is for with pole complex clamp, and the clamp passes through the bolt chucking, fixes the box on the pole through the clamp, makes things convenient for the fixed of stay cord position, and the fixed comparison of clamp is convenient simultaneously.
The pull rope 200 is a nylon filament insulating rope or a silk insulating rope having a certain bending resistance. The telescopic buckle is arranged on the pull rope 200, the length of the pull rope can be adjusted, and the application range of the bypass switch operating device is wider.
The indicating rod 111 is arranged on the locking linkage rod 110, the indicating rod 111 is perpendicular to the locking linkage rod 110, the side wall of the bypass switch is marked with a 'separating' character and a 'closing' character, when the locking linkage rod 110 is located at a closing position, the indicating rod 111 points to the 'closing' character, and when the locking linkage rod 110 is located at a separating position, the indicating rod 111 points to the 'separating' character.
the one end that two stay cords 200 kept away from shutting gangbar 110 is equipped with sign 210 respectively, and two sign shapes are different and divide the sign of being connected in the position with the shutting gangbar to be equipped with "branch" word sign, closes to be equipped with "closing" word sign on the sign 210 that the position is connected with the shutting gangbar, and the colour of two stay cords is different simultaneously, divides the stay cord of being connected in the position with the shutting gangbar to be green stay cord, closes the stay cord of being connected in the position with the shutting gangbar and is red stay cord. The sign is to ground distance on the sign is less than green stay cord to ground distance on the red stay cord so that the red stay cord of pulling, then the bypass switch state is for closing, and the directional "word that closes" of indicator lever 111, the sign is to ground distance on the green stay cord is less than red stay cord to ground distance on the green stay cord of pulling green stay cord messenger, then the bypass switch state is for dividing, and the indicator lever 111 is directional "branch" word.
It will be appreciated that the tab may also be a triangular tab, a polygonal tab, etc.
It can be understood that a limiting edge is arranged in the fixing box, and a limiting groove matched with the limiting edge is arranged on the supporting plate.
It can be understood that a rotating shaft is fixed on the inner wall of the fixing box, and the connecting shaft is rotatably connected with the rotating shaft.
it can be understood that the fixing piece can also be a fixing rope which can be suitable for electric poles with different diameters, so that the application range of the bypass switch operating device is wider.
Example two:
The main difference between the present embodiment and the first embodiment is that the axial limiting structure of the pull rod is different.
As shown in fig. 7 and 8, a position limiting plate 480 is disposed above the gravity ball 420, and the gravity ball 420 contacts the position limiting plate 480 to limit the axial position of the drawbar 450. The advantage of this setting is that, avoids friction disc 410 turned angle too big to lead to the protection device to fail to can control the power that friction disc 410 acted on stay cord 200, avoid the too big wearing and tearing that cause stay cord 200 of effort.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims (10)

1. The utility model provides a convenient to use's bypass switch operating means, bypass switch includes the shutting gangbar, operating means is including connecting respectively in two stay cords at shutting gangbar both ends, a serial communication port, operating means still includes fixed box, be equipped with on the fixed box with pole complex mounting, the stay cord is kept away from the one end of shutting gangbar and is vertically passed fixed box, be equipped with the protection device who prevents the mistake pulling stay cord in the fixed box, protection device includes the friction disc, the gravity ball, connect the connecting axle of friction disc and gravity ball and the backup pad that can reciprocate, the backup pad is located gravity ball below and supports the gravity ball, the connecting axle rotates to be connected in fixed box, the stay cord is located between friction disc and the fixed box inner wall, it makes the gravity ball remove and drive the friction disc and rotate in order to.
2. The bypass switch operating device according to claim 1, wherein a pull rod is provided below the support plate, a through hole through which the pull rod passes is provided on a lower end surface of the stationary box, and a pull ring for pulling the pull rod is provided at an end of the pull rod passing through the through hole.
3. The bypass switch operating device according to claim 2, wherein the pull rod is sleeved with a spring, and when the pull rod is pulled down, the gravity ball moves downwards under the action of gravity to drive the friction plate to rotate so as to loosen the pull rope; when the pull rod is loosened, the elastic force of the spring drives the gravity ball to move upwards so as to drive the friction plate to rotate reversely to compress the pull rope.
4. The bypass-switch operating device according to claim 2, wherein the pull ring is in contact with a lower end surface of the stationary case to restrict an axial position of the pull rod when there is no force applied to the pull rod; or a limiting plate is arranged above the gravity ball, and the gravity ball is in contact with the limiting plate to limit the axial position of the pull rod.
5. The bypass switch operating device according to claim 1, wherein the support plate is slidably connected to a fixing box, a slide groove is formed in the fixing box, and a limit protrusion engaged with the slide groove is formed on the support plate; or, a limiting edge is arranged in the fixing box, and a limiting groove matched with the limiting edge is arranged on the supporting plate.
6. The bypass-switch operating device according to claim 1, wherein the friction plate is provided with an avoidance arc surface that avoids the pulling rope when rotating.
7. The bypass-switch operating device according to claim 1, wherein the connecting shaft is located at a lower end of a friction plate, the friction plate has a height L, L is 5mm or more and L is 20mm or less.
8. The bypass switch operating device according to claim 1, wherein a rotation shaft is vertically fixed to the connection shaft, and the rotation shaft is rotatably connected to the fixing case; or a rotating shaft is fixed on the inner wall of the fixing box, and the connecting shaft is rotatably connected with the rotating shaft.
9. The bypass switch operating device according to claim 1, wherein the fixing member is a clip engaged with the pole; or, the fixing piece is a fixing rope.
10. The bypass switch operating device according to claim 1, wherein indicators having different shapes are respectively provided at ends of the two pulling ropes away from the locking linkage rod; or the two pull ropes are different in color; or, the ends of the two pull ropes far away from the locking linkage rod are respectively provided with signs of 'separating' and 'closing' marks.
CN201920662554.6U 2019-05-09 2019-05-09 Convenient to use's bypass switch operating means Expired - Fee Related CN209747390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920662554.6U CN209747390U (en) 2019-05-09 2019-05-09 Convenient to use's bypass switch operating means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920662554.6U CN209747390U (en) 2019-05-09 2019-05-09 Convenient to use's bypass switch operating means

Publications (1)

Publication Number Publication Date
CN209747390U true CN209747390U (en) 2019-12-06

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Application Number Title Priority Date Filing Date
CN201920662554.6U Expired - Fee Related CN209747390U (en) 2019-05-09 2019-05-09 Convenient to use's bypass switch operating means

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071693A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity circuit switch
CN112071694A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity circuit switch
CN112071695A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity triggered circuit switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071693A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity circuit switch
CN112071694A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity circuit switch
CN112071695A (en) * 2020-09-09 2020-12-11 闻江波 Microgravity triggered circuit switch

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191206

Termination date: 20200509

CF01 Termination of patent right due to non-payment of annual fee