CN111952113B - Vacuum circuit breaker on post - Google Patents
Vacuum circuit breaker on post Download PDFInfo
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- CN111952113B CN111952113B CN202010585248.4A CN202010585248A CN111952113B CN 111952113 B CN111952113 B CN 111952113B CN 202010585248 A CN202010585248 A CN 202010585248A CN 111952113 B CN111952113 B CN 111952113B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Abstract
The invention relates to the technical field of vacuum circuit breakers and discloses a pole-mounted vacuum circuit breaker, which comprises a base and a pole, wherein a switching-on power device, a switching-off power device, an insulating pull rod and a transmission device are arranged in the base; the transmission device comprises a transmission shaft and a support, the support comprises two second fixing plates, the two second fixing plates are respectively provided with a first fixing hole and a second fixing hole, the first fixing hole and the second fixing hole are waist-shaped holes and form a certain included angle with each other, a second fixing piece is arranged on the insulating pull rod, the first fixing piece is connected with the second fixing piece through a movable piece, the first fixing piece comprises a second fixing rod and a second movable rod, the first fixing piece is connected with the second fixing piece through a movable piece, the second fixing piece comprises a fourth fixing rod and a fourth movable rod, and the fourth fixing rod and the fourth movable rod are connected through a second locking piece.
Description
Technical Field
The invention relates to the technical field of vacuum circuit breakers, in particular to a vacuum circuit breaker on a column.
Background
Currently, a pole vacuum circuit breaker refers to a circuit breaker installed and operated on an electric pole. The research level of the strength and the manufacturing technology of various circuit breakers have been developed greatly, and the vacuum circuit breaker is not only limited to a medium-voltage power grid, but also developed towards high voltage and large capacity, has many advantages, such as strong on-off capacity, many continuous on-off times, frequent operation, low operation noise, no fire hazard and the like, and is a good oilless device.
The invention patent with the publication number of CN201289816Y discloses an outdoor high-voltage permanent magnet vacuum circuit breaker, which comprises a base and a pole, wherein the circuit breaker drives an insulating pull rod to move to control opening and closing through the movement of a main shaft on the base along a horizontal waist-shaped hole.
The above prior art solutions have the following drawbacks: the force applied to the main shaft when the driving arm or the opening spring drives the main shaft to move is not exactly along the horizontal direction, so that the moving direction of the main shaft is limited by the waist-shaped hole matched with the limiting column on the side surface of the main shaft, when the breaker is opened or closed, the inner walls of the limiting column and the waist-shaped hole are abraded, when the limiting column and the waist-shaped hole are abraded to a certain degree, the main shaft moves unstably, and the main shaft needs to be replaced at this time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pole-mounted vacuum circuit breaker which has the effect of conveniently replacing a fixing piece.
The above purpose of the invention is realized by the following technical scheme: a vacuum circuit breaker on a column comprises a base, a column arranged on the base, a switching-on power device, a switching-off power device, an insulating pull rod and a transmission device, wherein the switching-on power device, the switching-off power device, the insulating pull rod and the transmission device are arranged in the base; the switching-on power device is used for providing switching-on power, the switching-off power device is used for providing switching-off power, and the transmission device is used for providing transmission power; the insulating pull rod is connected to the bottom of the pole in a sliding mode, the transmission device comprises a transmission shaft and a support connected with the base, the transmission shaft is respectively connected with the switching-on power device, the switching-off power device and the support, the support comprises a first fixing plate and two second fixing plates, the two second fixing plates are respectively fixedly connected with two opposite end faces of the first fixing plate, the two second fixing plates are respectively provided with a first fixing hole and a second fixing hole, and the first fixing hole and the second fixing hole are waist-shaped holes and form a certain included angle; the transmission shaft is provided with a first fixing piece, two ends of the first fixing piece along the axis direction are respectively embedded into two first fixing holes, the insulating pull rod is provided with a second fixing piece, two ends of the second fixing piece along the axis direction are respectively embedded into two second fixing holes, and the first fixing piece and the second fixing piece are connected through a movable piece; the first fixing piece comprises a second fixing rod and a second movable rod, the second fixing rod is connected with the second movable rod through a first locking piece, the second fixing piece comprises a fourth fixing rod and a fourth movable rod, and the fourth fixing rod is connected with the fourth movable rod through a second locking piece.
By adopting the technical scheme, the switching-on power device and the switching-off power device realize the switching-on and switching-off processes of the circuit breaker through the transmission device and the insulating pull rod; two ends of the first fixing piece are respectively embedded into the two first fixing holes, so that the first fixing piece and the transmission shaft can only move along the length direction of the first fixing holes; two ends of the second fixing piece respectively intrude into the two second fixing holes, so that the second fixing piece and the insulating pull rod can only move along the length direction of the second fixing holes; arranging a movable piece to enable the first fixed piece and the second fixed piece to move synchronously; when first mounting or second mounting wearing and tearing, earlier separate first mounting and second mounting through the moving part, make first mounting and second mounting no longer relevant, rethread first locking piece separates second dead lever and second movable rod, conveniently take off second dead lever and second movable rod from the axis of rotation and change it, separate fourth mounting and fourth movable rod through the second locking piece, conveniently take off fourth dead lever and fourth movable rod from the axis of rotation and change it, consequently, need not to change whole axis of rotation.
The invention is further configured to: the first fixing piece comprises a first fixing rod penetrating through the transmission shaft and two first movable rods, the two first movable rods are respectively positioned at two ends of the first fixing rod along the axis direction, and the two first movable rods are respectively arranged in the two first fixing grooves in a sliding manner; the cross sections of the second fixed rod and the second movable rod are semicircular, the second fixed rod is provided with two ends which are respectively and fixedly connected with the two end surfaces of the first fixed rod along the axial direction, the second movable rod is provided with two ends which are respectively and fixedly connected with the end surfaces of the two first movable rods which are close to each other, and the second fixed rod and the second movable rod are combined to form a cylinder; the first locking part is a locking snap spring, a first fixing groove for embedding the locking snap spring is formed in the arc-shaped surface of the second fixing rod, and a first movable groove for embedding the locking snap spring is formed in the arc-shaped surface of the second movable rod.
By adopting the technical scheme, when in connection, the end faces of the second fixed rod and the second movable rod which are close to each other are attached, the first fixed groove is aligned with the first movable groove, and the locking snap spring is respectively embedded into the first fixed groove and the first movable groove, so that the second fixed rod and the movable rod are connected; otherwise, connecting the second fixed rod with the second movable rod; through the locking clamp spring, the second fixed rod and the second movable rod are conveniently connected or separated, so that the second fixed rod and the second movable rod can be conveniently replaced by a worker.
The invention is further configured to: the end face of the second fixed rod facing the second movable rod is provided with a T-shaped groove, the end face of the second movable rod facing the second fixed rod is fixedly connected with a T-shaped block embedded into the T-shaped groove, and the T-shaped block is arranged in the T-shaped groove in a sliding mode.
By adopting the technical scheme, when the T-shaped block is embedded into the T-shaped groove, the first movable rod can only move along the axis direction of the first fixed rod, and the second fixed rod and the second movable rod are prevented from moving along other directions to enable the first fixed rod and the second fixed rod to be fixed and separated; have predetermined effect through T type piece and T type groove, when making first movable rod and first dead lever be close to each other, be convenient for align first fixed slot and first movable slot to be connected second dead lever and second movable rod through the locking jump ring.
The invention is further configured to: when the second fixed plate is attached to the first movable rod, the second movable rod is attached to the first fixed rod.
By adopting the technical scheme, when the vacuum circuit breaker on the column is used, the second fixed piece and the first fixed piece can rotate, the second fixed plate is attached to the first movable rod, and the second movable rod is attached to the first fixed rod, so that the end surfaces, close to each other, of the second fixed plate and the second movable rod are completely attached, the contact surface between the second fixed plate and the second movable rod is the largest, the force of mutual transmission between the second fixed plate and the second movable rod is the most stable, and the second fixed plate and the second movable rod are prevented from being damaged; make things convenient for the staff to observe and judge whether first fixed slot aligns with first activity groove to the staff installs the locking jump ring.
The invention is further configured to: a fixed ring block is fixedly connected to the outer surface of the second fixed rod, an insertion hole for the second movable rod to pass through is formed in the end face, far away from the first fixed rod, of the fixed ring block, and a movable ring block is fixedly connected to the outer surface of the first movable rod; when the movable ring block is attached to the end face, far away from the transmission shaft, of the second fixing plate, the fixed ring block is attached to the end face, close to the transmission shaft, of the second fixing plate.
By adopting the technical scheme, the fixed ring block and the movable ring block are arranged on two sides of the second fixing plate, the first fixing piece is positioned, and the first fixing piece is prevented from moving along the axis direction to be separated from the transmission shaft and the second fixing plate; in addition, due to the arrangement of the jack, a worker can conveniently embed the second movable rod into the jack, so that the second fixed rod is pre-connected with the second movable rod, meanwhile, the fixed ring block is limited to the second movable rod, and the second fixed rod is prevented from being separated from the second fixed rod when the first fixing piece rotates.
The invention is further configured to: the movable part comprises a first movable part and a second movable part, a clamping groove is formed in the end face, facing the second movable part, of the first movable part, a clamping hole communicated with the clamping groove is formed in the end face, facing away from the transmission shaft, of the first movable part, a clamping rod embedded in the clamping groove is fixedly connected to the end face, facing away from the transmission shaft, of the second movable part, and a clamping block embedded in the clamping hole is fixedly connected to the end face, facing away from the transmission shaft, of the clamping rod; when the first movable part is connected with the second movable part, a through hole for the first fixing part and the second fixing part to pass through is formed.
Through adopting above-mentioned technical scheme, connect first movable part and second movable part through the joint structure, make first mounting and second mounting produce the linkage relation, can drive the second mounting and remove when making first mounting remove, realize circuit breaker divide-shut brake, otherwise, no longer connect first mounting and second mounting, the part of first mounting and second mounting is conveniently changed.
The invention is further configured to: a positioning ring groove is formed in the circumferential surface of the first fixing rod, and a positioning clamp spring is arranged in the positioning ring groove; the end faces of the positioning clamp spring and the locking clamp spring, which are close to each other, are respectively attached to the two end faces of the movable piece, which are opposite to each other.
Through adopting above-mentioned technical scheme, because the rotation can take place for second mounting and first mounting when the column vacuum circuit breaker uses, it is spacing with the moving part through location jump ring and locking jump ring, prevent that the moving part from removing along the axis direction of first dead lever when the circuit breaker uses, reduce the wearing and tearing of first mounting.
The invention is further configured to: the first movable rod is sleeved with a first roller, and two ends of the first roller along the axis direction are respectively attached to the fixed ring block and the movable ring block.
By adopting the technical scheme, when the first fixing piece moves, the first roller and the second fixing plate are mutually abraded, so that the abrasion of the first movable rod is avoided, and the first movable rod is protected; in addition, two opposite ends of the first roller are respectively attached to the fixed ring block and the movable ring block, so that the first roller is prevented from moving along the axis direction of the first roller, and the first roller is prevented from being separated from the first movable rod.
The invention is further configured to: the first fixed orifices are internally provided with rubber sleeves, and the outer surfaces of the rubber sleeves are attached to the inner surfaces of the first fixed orifices.
Through adopting above-mentioned technical scheme, set up the rubber sleeve, have the effect of protecting first fixed orifices inner wall, make the in-process of first mounting removal in first fixed orifices, the rubber sleeve has replaced the wearing and tearing of first fixed orifices inner wall, avoids first fixed orifices grow because of wearing and tearing.
In summary, the invention includes at least one of the following beneficial technical effects:
1. arranging a movable piece to enable the first fixed piece and the second fixed piece to move synchronously; when the first fixing piece or the second fixing piece is abraded, the first fixing piece and the second fixing piece are separated through the movable piece, so that the first fixing piece and the second fixing piece are not related any more, the second fixed rod and the second movable rod are separated through the first locking piece, the second fixed rod and the second movable rod are conveniently taken down from the rotating shaft and replaced, the fourth fixing piece and the fourth movable rod are separated through the second locking piece, the fourth fixed rod and the fourth movable rod are conveniently taken down from the rotating shaft and replaced, and therefore the whole rotating shaft does not need to be replaced;
2. the first fixing piece is limited to move along the axis direction through the fixing ring block and the movable ring block, so that the first fixing piece, the support and the charging transmission shaft are connected stably.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic structural diagram showing a switching-on power device and a switching-off power device;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a partial cross-sectional view highlighting a first fastener arrangement;
FIG. 5 is an enlarged view of portion B of FIG. 4;
figure 6 is a partial exploded view highlighting the first fastener configuration.
Reference numerals: 1. a base; 2. a pole column; 3. switching on a power device; 4. a brake separating power device; 5. an insulating pull rod; 6. a transmission device; 61. a drive shaft; 62. a support; 621. a first fixing plate; 622. a second fixing plate; 6221. a first fixing hole; 6222. a second fixing hole; 6223. a rubber sleeve; 7. a first fixing member; 71. a first fixing lever; 711. a positioning ring groove; 712. positioning a clamp spring; 72. a second fixing bar; 721. a first fixing groove; 722. a fixed ring block; 723. a jack; 724. a T-shaped groove; 73. a first movable bar; 731. a movable ring block; 732. a first roller; 74. a second movable bar; 741. a first movable slot; 742. a T-shaped block; 75. a first locking member; 8. a second fixing member; 81. a third fixing bar; 82. a fourth fixing bar; 83. a third movable bar; 84. a fourth movable bar; 85. a second locking member; 9. a movable member; 91. a first movable portion; 911. a card slot; 912. a clamping hole; 92. a second movable portion; 921. a clamping rod; 922. and (7) clamping blocks.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a vacuum circuit breaker on a column, as shown in fig. 1 and 2, the vacuum circuit breaker on a column comprises a base 1, three poles 2 arranged on the base 1, a switching-on power device 3 arranged inside the base 1, a switching-off power device 4, three insulating pull rods 5 and a transmission device 6. The switching-on power device 3 is used for providing switching-on power, the switching-off power device 4 is used for providing switching-off power, and the transmission device 6 is used for providing transmission power.
As shown in fig. 2 and 3, three insulating pull rods 5 are slidably connected to the bottoms of the three poles 2, respectively. The transmission device 6 comprises a transmission shaft 61 and a bracket 62 connected with the base 1, and the transmission shaft 61 is respectively connected with the closing power device 3, the opening power device 4 and the bracket 62.
As shown in fig. 2 and 3, the bracket 62 includes a first fixing plate 621 and two second fixing plates 622, and the two second fixing plates 622 are respectively fixedly connected to two opposite end surfaces of the first fixing plate 621. First fixed orifices 6221 and second fixed orifices 6222 have all been seted up to two second fixed plates 622, and first fixed orifices 6221 and second fixed orifices 6222 all are waist type hole and mutually become certain contained angle. The first fixing hole 6221 is horizontally disposed, and the second fixing hole 6222 is vertically disposed.
As shown in fig. 3 and 4, the transmission shaft 61 is provided with first fixing members 7, and both ends of the first fixing members 7 in the axial direction are respectively fitted into the two first fixing holes 6221. The insulating pull rod 5 is provided with a second fixing piece 8, and two ends of the second fixing piece 8 along the axial direction are respectively embedded into the two second fixing holes 6222. The first fixed member 7 and the second fixed member 8 are connected by two movable members 9, and the two movable members 9 are respectively located at two opposite ends of the transmission shaft 61. The first fixed part 7 and the second fixed part 8 are connected by a movable part 9. When the first fixing member 7 moves in the horizontal direction, the second fixing member 8 moves in the vertical direction, so that the first fixing member 7 and the second fixing member 8 move synchronously.
As shown in fig. 5 and 6, the first fixing member 7 includes a first fixing rod 71 penetrating through the transmission shaft 61 and two first movable rods 73, the two first movable rods 73 are respectively located at two ends of the first fixing rod 71 along the axial direction, and the two first movable rods 73 are respectively slidably disposed in the two first fixing grooves 721. Both ends of the first fixed link 71 along the axial direction are fixedly connected with a second fixed link 72, the end surfaces of the two first movable links 73 close to each other are fixedly connected with a second movable link 74, and the second fixed link 72 and the second movable link 74 are connected by a first locking member 75.
As shown in fig. 5 and 6, the second fixed lever 72 and the second movable lever 74 each have a semicircular cross section, and the second fixed lever 72 and the second movable lever 74 are combined to form a cylinder. Further preferably, the diameter of the cylinder is the same as the diameter of the first fixed lever 71 and the first movable lever 73. The first locking member 75 is a locking clip, a first fixing groove 721 for the locking clip to be inserted is formed on the arc surface of the second fixing rod 72, and a first moving groove 741 for the locking clip to be inserted is formed on the arc surface of the second moving rod 74. When the second fixing plate 622 is engaged with the first movable bar 73, the second movable bar 74 is engaged with the first fixing bar 71 while the first fixing grooves 721 and the first movable grooves 741 are aligned with each other.
As shown in fig. 5 and 6, a fixed ring block 722 is fixedly connected to the outer surface of the second fixed rod 72, an insertion hole 723 through which the second movable rod 74 passes is formed in an end surface of the fixed ring block 722 away from the first fixed rod 71, and a movable ring block 731 is fixedly connected to the outer surface of the first movable rod 73. The fixed and movable ring blocks 722, 731 each have an outer diameter that is greater than the separation between two horizontal planes within the first fixed bore 6221. When the movable ring piece 731 is attached to the end surface of the second fixing plate 622 away from the transmission shaft 61, the fixed ring piece 722 is attached to the end surface of the second fixing plate 622 close to the transmission shaft 61. The first fixed link 71 and the first movable link 73 are prevented from moving in the axial direction by the fixed ring 722 and the movable ring 731, and the second movable link 74 and the second fixed link 72 are stably connected, thereby improving the stability of the connection between the first fixing part 7 and the second fixing part 8.
As shown in fig. 5 and 6, a T-shaped groove 724 is formed in an end surface of the second fixed lever 72 facing the second movable lever 74, a T-shaped block 742 embedded in the T-shaped groove 724 is fixedly connected to the end surface of the second movable lever 74 facing the second fixed lever 72, and the T-shaped block 742 is slidably disposed in the T-shaped groove 724. The second fixed rod 72 and the second movable rod 74 are limited by the T-shaped groove 724 and the T-shaped groove 724, so that the second fixed rod 72 and the second movable rod 74 can only move along the axial direction of the first fixed rod 71, and the second fixed rod 72 and the second movable rod 74 are prevented from being separated when the first fixed member 7 rotates.
As shown in fig. 4 and 6, the movable element 9 includes a first movable portion 91 and a second movable portion 92, a clamping groove 911 is formed in an end surface of the first movable portion 91 facing the second movable portion 92, a clamping hole 912 communicating with the clamping groove 911 is formed in an end surface of the first movable portion 91 facing away from the transmission shaft 61, a clamping rod 921 embedded in the clamping groove 911 is fixedly connected to an end surface of the second movable portion 92 facing the first movable portion 91, and a clamping block 922 embedded in the clamping hole 912 is fixedly connected to an end surface of the clamping rod 921 facing away from the transmission shaft 61. The latch 921 and the latch 922 are made of a deformable material. When the first movable portion 91 is connected to the second movable portion 92, a through hole is formed through which the first fixing member 7 and the second fixing member 8 pass.
As shown in fig. 5 and 6, a positioning ring groove 711 is formed on the circumferential surface of the first fixing rod 71, and a positioning snap spring 712 is disposed in the positioning ring groove 711. The end surfaces of the positioning clamp spring 712 and the locking clamp spring, which are close to each other, are respectively attached to two end surfaces of the movable member 9, which are opposite to each other. Through the cooperation of positioning ring groove 711 and locking jump ring, it is spacing to moving part 9, prevents that moving part 9 from moving along the axis direction of first fixed part 7, reduces relative wearing and tearing between first fixed part 7 and the moving part 9, improves the life of first fixed part 7, second fixed part 8, moving part 9.
As shown in fig. 3 and 5, a rubber sleeve 6223 is provided in the first fixing hole 6221, and an outer surface of the rubber sleeve 6223 is fitted to an inner surface of the first fixing hole 6221. The first movable rod 73 is externally sleeved with a first roller 732, and two ends of the first roller 732 in the axial direction are respectively attached to the fixed ring block 722 and the movable ring block 731. The inner diameter of the first roller 732 is the same as the outer diameter of the first movable rod 73, and the outer diameter of the first roller 732 is the same as the distance between two parallel surfaces in the first fixing hole 6221. The rubber sleeve 6223 is provided to protect the inner wall of the first fixing hole 6221 from abrasion. The first roller 732 is provided to protect the first movable bar 73, thereby preventing the circumferential surface of the first movable bar 73 from being worn, and improving the service life of the first fixed member 7 and the bracket 62.
As shown in fig. 4 and 6, the second fixing member 8 has the same structure as the first fixing member 7, except that the second fixing member 8 is disposed on the insulating pull rod 5, and both ends of the second fixing member 8 along the axial direction are respectively inserted into the second fixing holes 6222. The second fixing member 8 includes a third fixing rod 81 disposed on the insulating pull rod 5 in a penetrating manner and a third movable rod 83 disposed in the second fixing hole 6222 in a sliding manner, and the third movable rod 83 is located at two ends of the third fixing rod 81 along the axial direction. Both end surfaces of the third fixed rod 81 in the axial direction are fixedly connected with a fourth fixed rod 82, and one ends of the two third movable rods 83 facing the third fixed rod 81 are fixedly connected with a fourth movable rod 84. The outer surface of the fourth fixing rod 82 is provided with a second fixing groove, and the outer surface of the fourth movable rod 84 is provided with a second movable groove. The fourth fixed rod 82 and the fourth movable rod 84 are connected by a second locking member 85, the second locking member 85 employs an operation clamp spring, and the operation clamp spring is embedded into the second fixed groove and the second movable groove at the same time, so as to connect the fourth fixed rod 82 and the fourth movable rod 84.
The implementation principle of the embodiment is as follows: when the first fixing member 7 is replaced, the opening power device 4 is started to move the transmission shaft 61, firstly, the fixture block 922 is driven to be separated from the fixture hole 912, the first movable part 91 is separated from the second movable part 92, and the first fixing member 7 is not connected with the second fixing member 8; secondly, the locking clamp spring is taken down from the second fixed rod 72 and the second movable rod 74, the first movable rod 73 is driven to move towards the direction away from the transmission shaft 61, and the second movable rod 74 is separated from the second fixed rod 72; again, the first fixing lever 71 is separated from the driving shaft 61; conversely, the first fixing member 7 is mounted to the transmission shaft 61. The second fixing member 8 is replaced in the same manner as the first fixing member 7.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pole-mounted vacuum circuit breaker comprises a base (1), a pole (2) arranged on the base (1), a switching-on power device (3) arranged in the base (1), a switching-off power device (4), an insulating pull rod (5) and a transmission device (6); insulating pull rod (5) sliding connection is in the bottom of utmost point post (2), closing power device (3) are used for providing closing power, separating brake power device (4) are used for providing separating brake power, transmission (6) are used for providing transmission power, transmission (6) include transmission shaft (61) and support (62) be connected with base (1), transmission shaft (61) are connected its characterized in that with closing power device (3), separating brake power device (4), support (62) respectively: the support (62) comprises a first fixing plate (621) and two second fixing plates (622), the two second fixing plates (622) are fixedly connected with the first fixing plate (621), the two second fixing plates (622) are oppositely arranged on two sides of the first fixing plate (621), first fixing holes (6221) and second fixing holes (6222) are formed in the two second fixing plates (622), and the first fixing holes (6221) and the second fixing holes (6222) are waist-shaped holes and form a certain included angle with each other; the transmission shaft (61) is provided with a first fixing piece (7), one end of the first fixing piece (7) is embedded into one first fixing hole (6221), the other end of the first fixing piece (7) is embedded into the other first fixing hole (6221), the insulating pull rod (5) is provided with a second fixing piece (8), one end of the second fixing piece (8) is embedded into one second fixing hole (6222), the other end of the second fixing piece (8) is embedded into the other second fixing hole (6222), and the first fixing piece (7) is connected with the second fixing piece (8) through a movable piece (9); the first fixing piece (7) comprises a second fixing rod (72) and a second movable rod (74), the second fixing rod (72) and the second movable rod (74) are connected through a first locking piece (75), the second fixing piece (8) comprises a fourth fixing rod (82) and a fourth movable rod (84), and the fourth fixing rod (82) and the fourth movable rod (84) are connected through a second locking piece (85);
the first fixing piece (7) comprises a first fixing rod (71) penetrating through the transmission shaft (61) and two first movable rods (73), and each first movable rod (73) is arranged in a corresponding first fixing groove (721) in a sliding manner; the cross sections of the second fixed rods (72) and the second movable rods (74) are semicircular, two second fixed rods (72) are arranged, the two second fixed rods (72) are fixedly connected with the first movable rod (73), the two second fixed rods (72) are oppositely arranged on two sides of the first movable rod (73), the number of the second movable rods (74) is two, the second movable rods (74) are fixedly connected with the end face, close to the transmission shaft (61), of the first movable rod (73), and the second fixed rods (72) and the second movable rods (74) are combined to form a cylinder; the first locking piece (75) is a locking clamp spring, a first fixing groove (721) for embedding the locking clamp spring is formed in the arc-shaped surface of the second fixing rod (72), and a first movable groove (741) for embedding the locking clamp spring is formed in the arc-shaped surface of the second movable rod (74).
2. A pole vacuum interrupter as claimed in claim 1, wherein: t-shaped grooves (724) are formed in the end face, facing the second movable rod (74), of the second fixing rod (72), T-shaped blocks (742) embedded into the T-shaped grooves (724) are fixedly connected to the end face, facing the second fixing rod (72), of the second movable rod (74), and the T-shaped blocks (742) are arranged in the T-shaped grooves (724) in a sliding mode.
3. A pole vacuum interrupter as claimed in claim 1, wherein: when the second fixing plate (622) is jointed with the first movable rod (73), the second movable rod (74) is jointed with the first fixing rod (71).
4. A pole vacuum interrupter as claimed in claim 1, wherein: a fixed ring block (722) is fixedly connected to the outer surface of the second fixed rod (72), an insertion hole (723) for the second movable rod (74) to pass through is formed in the end face, away from the first fixed rod (71), of the fixed ring block (722), and a movable ring block (731) is fixedly connected to the outer surface of the first movable rod (73); when the movable ring block (731) is attached to the end face, far away from the transmission shaft (61), of the second fixing plate (622), the fixed ring block (722) is attached to the end face, close to the transmission shaft (61), of the second fixing plate (622).
5. A pole vacuum interrupter as claimed in claim 1, wherein: the movable piece (9) comprises a first movable part (91) and a second movable part (92), a clamping groove (911) is formed in the end face, facing the second movable part (92), of the first movable part (91), a clamping hole (912) communicated with the clamping groove (911) is formed in the end face, facing away from the transmission shaft (61), of the first movable part (91), a clamping rod (921) embedded into the clamping groove (911) is fixedly connected to the end face, facing the first movable part (91), of the second movable part (92), and a clamping block (922) embedded into the clamping hole (912) is fixedly connected to the end face, facing away from the transmission shaft (61), of the clamping rod (921); when the first movable part (91) is connected with the second movable part (92), a through hole for the first fixing part (7) and the second fixing part (8) to pass through is formed.
6. The pole vacuum circuit breaker according to claim 5, characterized in that: a positioning ring groove (711) is formed in the circumferential surface of the first fixing rod (71), and a positioning clamp spring (712) is arranged in the positioning ring groove (711); the positioning clamp spring (712) is attached to the end face, close to the transmission shaft (61), of the moving piece (9), and the locking clamp spring is attached to the end face, far away from the transmission shaft (61), of the moving piece (9).
7. The vacuum interrupter as claimed in claim 4, wherein: the first movable rod (73) is sleeved with a first roller (732), the fixed ring block (722) is attached to one end of the first roller (732), and the movable ring block (731) is attached to one end, away from the fixed ring block (722), of the first roller (732).
8. A pole vacuum interrupter as claimed in claim 1, wherein: a rubber sleeve (6223) is arranged in the first fixing hole (6221), and the outer surface of the rubber sleeve (6223) is attached to the inner surface of the first fixing hole (6221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010585248.4A CN111952113B (en) | 2020-06-23 | 2020-06-23 | Vacuum circuit breaker on post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010585248.4A CN111952113B (en) | 2020-06-23 | 2020-06-23 | Vacuum circuit breaker on post |
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| CN111952113B true CN111952113B (en) | 2022-05-31 |
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| CN111952113A (en) | 2020-11-17 |
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Denomination of invention: A column mounted vacuum circuit breaker Effective date of registration: 20221006 Granted publication date: 20220531 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Wenzhou Yueqing Hongqiao small and micro enterprise franchise sub branch Pledgor: XIANGXING ELECTRIC Co.,Ltd. Registration number: Y2022330002470 |
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