CN110660625A - 35kV high altitude high voltage fuse bushing type protective tube replacement device - Google Patents
35kV high altitude high voltage fuse bushing type protective tube replacement device Download PDFInfo
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- CN110660625A CN110660625A CN201910905577.XA CN201910905577A CN110660625A CN 110660625 A CN110660625 A CN 110660625A CN 201910905577 A CN201910905577 A CN 201910905577A CN 110660625 A CN110660625 A CN 110660625A
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- fuse
- tube
- bushing type
- movable cover
- semicircular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0208—Tools for inserting and removing fuses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/042—General constructions or structure of high voltage fuses, i.e. above 1000 V
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/25—Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
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Abstract
The invention provides a 35kV high-altitude high-voltage fuse bushing type fuse tube replacing device which comprises a bushing base, a movable cover, a locking part, an unlocking part, a basic support, an insulating rod and a fuse tube clamping unit. The 35kV high-altitude high-voltage fuse bushing type fuse tube replacing device can enable an operator to open and close the movable cover outside the 35kV high-altitude high-voltage fuse by means of a common tool such as a brake pull rod on the ground through the mutual matching of the movable cover, the movable cover operating hole and the unlocking operating part, further increase the operating height of the fuse tube clamping unit and the insulating rod through the arrangement of the fuse tube clamping unit and the insulating rod, enable the operator to replace the fuse tube on the ground through the arrangement of the force arm rod capable of adjusting the tension and the angle of the fuse tube clamping unit, overcome the defect that the safety hazard caused by high-altitude operation is avoided and ensure the safety of the operator in the prior art when the operator climbs to the height of 4-6 meters.
Description
Technical Field
The invention relates to the technical field of high-voltage fuses, in particular to a 35kV high-altitude high-voltage fuse bushing type fuse tube replacing device.
Background
The fuse is an electric appliance which fuses a melt by heat generated by itself to open a circuit when a current exceeds a predetermined value. The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; a current protector is made by applying the principle. The fuse is widely applied to high and low voltage distribution systems, control systems and electric equipment, and is one of the most commonly applied protection devices as a short circuit and overcurrent protector.
The high-voltage fuse is widely popularized and applied in the power industry due to the safety, reliability and economy of the high-voltage fuse. At present, most transformer substations adopt voltage transformers of 35kV or below to be protected by high-voltage fuses. When the high-voltage fuse fuses due to voltage fluctuation or other reasons, the fuse tube in the fuse must be replaced in time to ensure safe and stable operation of the power grid.
However, the fuse is installed at a high location, for example, a 35kV outdoor fuse is typically located 4-6 meters from the ground. In the current stage, the fuse is replaced by an insulating ladder with the height of more than 4 meters, an operator climbs to the height of 4-6 meters to replace a protective tube, when the operator works aloft, the ladder needs to be provided with a special escalator for going up and down, in the current stage, each transformer substation does not have an insulating ladder with enough length, a pickup or a small truck is needed, the insulating ladder is very inconvenient to carry, the replacement time after the fuse is fused cannot be ensured, the efficiency is low, and the production is influenced; meanwhile, certain potential safety hazards also exist when the operators work high above the ground.
Therefore, the device capable of replacing the high-voltage fuse of the 35kV voltage transformer on the ground by a single person is provided to solve the technical problems of low efficiency and high cost caused by the transportation of the insulating ladder in the prior art, and is an important technical problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above, the invention aims to provide a device for replacing a bushing type fuse tube of a 35kV overhead high-voltage fuse, which can be operated by a common tool to replace the high-voltage fuse of the 35kV voltage transformer on the ground by a single person, is convenient and quick, and reduces the labor intensity of operators and the risk of overhead operation during overhead operation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a35 kV high-altitude high-voltage fuse bushing type protective tube replacing device comprises a 35kV high-altitude high-voltage fuse bushing type self-locking end cover and a 35kV high-altitude high-voltage fuse bushing type protective tube grabbing device; the 35kV high-altitude high-voltage fuse bushing type self-locking end cover comprises
The fuse protector comprises a sleeve pipe base, a fuse protector body and a fuse protector, wherein the sleeve pipe base is a cylinder with a through hole formed therein;
the movable cover is movably connected with the sleeve base; the movable cover is provided with a movable cover protruding end, the movable cover is L-shaped, and the movable cover protruding end is provided with a movable cover operating hole; the movable cover can turn over or slide relative to the sleeve base to open and close the accommodating part;
a locking part configured to lock the movable cover to form a closure of the accommodating part; and
an unlocking portion provided with an unlocking operation portion configured to receive an external unlocking operation to unlock the movable cover;
35kV high altitude high voltage fuse bushing type protective tube grabbing device includes
The base support is a frame formed by integrating four frame edges, and the cross section of the base support is semicircular;
the safety clamping unit is arranged above the base support and comprises two semicircular assemblies; the first semicircular component is welded on the basic bracket, and the second semicircular component is connected with the basic bracket through a hinge; the safety clamping unit also comprises a semicircular reinforcing piece which is arranged in parallel with the two semicircular assemblies; the semicircular reinforcing piece is connected with the second semicircular component through a first rod body; a force arm rod is welded on the first rod body, and a spring is arranged between the force arm rod and the second semicircular component; the force arm is configured to receive a downward force to close the two semicircular assemblies and receive an upward force to open the two semicircular assemblies; an operating part is sleeved on the outer side of the force arm rod;
the insulating rod is sleeved on the inner side of the base bracket; the insulator spindle overcoat is equipped with the locking area, the locking area both ends are equipped with the through-hole, and it is set up to wear to establish bolt construction in order to realize the foundation support with the fixed of insulator spindle.
Further, the locking portion includes
The first elastic piece is fixedly connected below the sleeve pipe base, is configured to be compressed when the accommodating part is closed, and can drive the bolt to reset due to the elastic recovery of the first elastic piece when the accommodating part is opened;
the bolt is fixedly connected with the first elastic piece, a protruding end is arranged on the bolt and is in an L shape, and the protruding end of the bolt is configured to lock the movable cover when the accommodating part is closed.
Furthermore, the unlocking operation part can be driven by external force to drive the bolt to move downwards so as to release the blockage of the movable cover by the bolt; the unlocking operation part is arranged at one end, far away from the first elastic piece, of the bolt, and the unlocking operation part is a pull ring.
Furthermore, a damping unit is fixedly arranged on the sleeve base and the inner wall close to the top end of the sleeve base, and the damping unit is configured to apply a damping force to the fuse tube pushed by the first elastic piece due to the opening of the movable cover, so that the fuse tube can be partially ejected out of the accommodating part.
Further, the removable cap may be flipped 180 ° relative to the cannula base.
Further, the accommodating portion is provided with a second elastic member sleeved on the safety tube, and the second elastic member is configured to drive the axial displacement of the safety tube due to self elastic recovery when the accommodating portion is opened.
Further, the insulating rod comprises an outer tube body and inner tube bodies penetrating through two ends of the outer tube body;
a locking assembly is arranged between the inner pipe body and the outer pipe body so as to form locking or unlocking of the inner pipe body relative to the outer pipe body along the axial direction of the outer pipe body;
the locking assembly comprises a threaded hole formed in the side wall of the outer tube body in a penetrating mode, a screw rod arranged in the threaded hole in a penetrating mode, and a handle rod fixedly arranged at one end of the outer portion of the screw rod, and the screw rod can be configured to abut against or loosen the inner tube body due to rotation of the handle rod.
Further, the operating member is a rope.
Further, 35kV high altitude high voltage fuse bushing type protective tube grabbing device still includes rope fixing device, rope fixing device includes
A rope gripper configured to secure the rope;
the frame is formed by integrally enclosing four frame edges, and the cross section of the frame is semicircular; the rope clamping device is fixedly arranged on the first frame edge; a screw rod through hole is formed outside the second frame edge;
one end of the locking ring is sleeved on the fourth frame edge, and the other end of the locking ring is provided with a screw rod through hole.
Furthermore, the fourth frame edge is provided with L-shaped rope winding positions, and the number of the rope winding positions is 2.
Compared with the prior art, the invention has the following advantages:
(1) the 35kV high-altitude high-voltage fuse bushing type protective tube replacing device can enable an operator to open and close the movable cover outside the 35kV high-altitude high-voltage fuse by means of a common tool such as a brake pull rod on the ground through the mutual matching of the movable cover, the movable cover operating hole and the unlocking operating part, is convenient for further protective tube replacing operation, overcomes the defect that the operator climbs to the height of 4-6 meters to replace the protective tube in the prior art, can avoid potential safety hazards caused by high-altitude operation, and ensures the safety of the operator.
(2) According to the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device, the fuse tube clamping unit and the insulating rod are arranged, so that the operation height is increased, and the force arm rod capable of adjusting the tension and the angle of the fuse tube clamping unit is arranged, so that an operator can replace a fuse tube on the ground, the defect that in the prior art, the operator climbs to the height of 4-6 m to replace the fuse tube is overcome, potential safety hazards caused by high-altitude operation can be avoided, and the safety of the operator is guaranteed; meanwhile, the safety tube clamping unit is also provided with a basic bracket to increase the stability of the safety tube clamping unit and facilitate the operation of an operator; in addition, the protective tube clamping device is also provided with the semicircular reinforcing piece, so that on one hand, the stability of clamping the protective tube is improved, the operability of an operator is improved, and the positioning during replacement is facilitated; on the other hand, the damage of other adjacent components caused by the instability of the protective tube can be avoided.
(3) By adopting the technical scheme of the invention, the number of operating personnel can be reduced, the carrying of the insulating ladder is not needed any more, the manpower and material resources for carrying are saved, the carrying cost is saved, meanwhile, a specially-assigned escalator is not needed any more when the personnel carry out the operation, and the manpower cost is further saved.
(4) The rope fixing device is arranged on the insulating rod, so that the operation is convenient, and the storage is convenient to a certain extent; the insulating rod body is a telescopic rod body, so that the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device is convenient to store; in addition, the structure of the invention has simple integral design and considerable advantages in weight, and is convenient for operators to operate.
(5) By adopting the technical scheme, the technical problems that the insulating ladder needs to be allocated nearby after the fuse is fused and a plurality of persons need to cooperate to operate and replace the fuse in the prior art are solved, the replacement time after the fuse is fused can be ensured, and the safe and stable operation of a power grid is further ensured. On the one hand, the working efficiency is improved, and on the other hand, the production cannot be influenced by fusing of the fuse. Has stronger practicability and popularization value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of a 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a use state 1 of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse in embodiment 1 of the invention;
fig. 3 is a schematic view of a use state 2 of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse in embodiment 1 of the invention;
fig. 4 is a schematic view of a use state 3 of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse in embodiment 1 of the invention;
FIG. 5 is a schematic view of a use state 4 of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse according to embodiment 1 of the invention;
FIG. 6 is a schematic view of a damping unit of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse according to embodiment 1 of the invention;
fig. 7 is a front view of a base bracket and a fuse clamp taking unit of the 35kV high-altitude high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the invention;
fig. 8 is a right side view of a base bracket and a fuse clamp taking unit of the 35kV high-altitude high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the invention;
fig. 9 is a front view of a rope fixing device of the 35kV overhead high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the invention;
fig. 10 is a front view of a rope fixing device of a 35kV aerial high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the invention in a use state;
fig. 11 is a top view of a rope fixing device of a 35kV aerial high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the present invention in a use state;
fig. 12 is a specific embodiment of an insulating rod of a 35kV overhead high-voltage fuse bushing type fuse grabbing device according to embodiment 1 of the present invention.
Description of reference numerals:
1-a cannula base; 2-a first elastic member; 3, inserting a pin; 4-a movable cover operation hole; 5-a removable cover; 51-a removable lid overhang; 6-a pull ring; 7-a damping unit; 8-overhang;
11-a spring; 12-a lever arm; 13-a base support; 14-an insulating rod; 141-an outer body; 142-an inner tube; 143-a locking assembly; 1431-screw; 1432-handle lever; 1433-reinforcing block; 15-a semi-circular component; 151-a first semi-circular component; 151-second semi-circular component; 16-semicircular stiffeners; 161-a first semi-circular stiffener; 162-a second semicircular reinforcement; 17-side stand; 18-bolt set; 19-a locking band; 201-a first stick body; 202-a second rod body;
21-a locking ring; 22-a rope gripper; 23-rope winding; 24-screw via holes; 25-a rope; 26-a frame body; 261-a first frame edge; 262-a second rim; 264-fourth frame border. .
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention relates to a 35kV high-altitude high-voltage fuse bushing type fuse tube replacing device, which mainly comprises the following design ideas: through the mutual matching of the movable cover, the movable cover operation hole and the unlocking operation part of the 35kV high-altitude high-voltage fuse bushing type self-locking end cover, an operator can open and close the movable cover outside the 35kV high-altitude high-voltage fuse on the ground, and then the replacement of the fuse tube is carried out by matching with a 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device, so that the technical problem that the operator needs to climb to the height of 4-6 meters to replace the fuse tube in the prior art is solved.
Through the setting of this overall design thought, can be convenient for further protective tube and change the operation, finally reach the operation personnel and can accomplish the purpose that the protective tube changed the operation with the help of common tool on ground, like the brake pull rod.
Based on the above design concept, the following embodiments describe some specific applications under the design concept in detail.
Example 1
The embodiment relates to a 35kV high-altitude high-voltage fuse bushing type protective tube grabbing device which is used for replacing a protective tube inside a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse on the ground so as to avoid potential safety hazards caused by high-altitude operation and guarantee the safety of operating personnel. Before describing the embodiment in detail, the specific structure of the sleeve type self-locking end cover of the 35kV overhead high-voltage fuse applied to the embodiment is described first.
A35 kV high-altitude high-voltage fuse bushing type self-locking end cover comprises a bushing base 1, a movable cover 5, a locking portion and an unlocking portion. Specifically, fig. 1 shows a schematic structural diagram of the 35kV overhead high-voltage fuse bushing type replacing device, wherein the left side of the diagram is a schematic structural diagram of a self-locking end cover, and this state is also the state of the self-locking end cover in normal operation. As shown in fig. 1, the cannula base 1 is a cylinder with a through hole therein, the diameter of the through hole being about 55mm, the through hole being formed as a receiving portion configured to receive a safety tube, which is not shown in the drawing of the present embodiment. The safety tube can adopt the safety tube in the prior art, one end of the safety tube is fixed on the sleeve base 1, and the other end of the safety tube is abutted against the movable cover 5 through the elastic force exerted by the first elastic piece 2.
The movable cover 5 is movably connected with the sleeve base 1; the movable cover 5 is provided with a movable cover protruding end 51, the movable cover 5 is L-shaped, and the movable cover protruding end 51 is provided with a movable cover operating hole 4; the movable cover 5 can turn over or slide relative to the sleeve base 1 to open or close the accommodating part; specifically, in the present embodiment, the movable cover 5 is connected to the sleeve base 1 by a hinge, and the movable cover 5 is capable of being turned over with respect to the sleeve base 1 to open and close the accommodating portion. But is not limited thereto, as long as it is convenient to operate the movable lid operation hole 4 to open and close the receiving portion.
A locking portion configured for locking the removable lid 5 to constitute a closure of the housing portion. In one specific embodiment of this embodiment, the locking portion includes a first elastic member 2 and a latch 3. Specifically, the first elastic member 2 is fixedly connected to the lower portion of the sleeve base 1, and configured to be compressed when the accommodating portion is closed, and to drive the latch 3 to return due to its elastic recovery when the accommodating portion is opened. And a latch 3 fixedly connected to the first elastic member 2, wherein the latch 3 is provided with a protruding end 8 in an "L" shape, and the latch protruding end 88 is configured to lock the movable cover 5 when the accommodating portion is closed and configured to lock the movable cover 5 when the accommodating portion is closed. As shown in fig. 1, the movable cover 5 is caught by the latch 3.
And an unlocking portion provided with an unlocking operation portion configured to receive an external unlocking operation to unlock the movable lid 5. In another specific implementation manner of this embodiment, the unlocking operation portion can be driven by an external force to drive the latch 3 to move downwards, so as to release the blocking of the movable cover 5 by the latch 3. Specifically, in this embodiment, the unlocking operation portion is disposed at one end of the bolt 3 far away from the first elastic member 2, and the unlocking operation portion is a pull ring 6. By applying a downward force to the pull ring 6, the blocking of the bolt 3 to the movable cover 5 can be released, and then the movable cover 5 is opened for the next fuse tube replacement. The first elastic member 2 in this embodiment is a spring, but is not limited thereto.
Fig. 2 is a schematic view of a use state 1 of a bushing type self-locking end cover of a 35kV high-altitude high-voltage fuse in embodiment 1 of the invention. When the fuse needs to be replaced, the pull ring 6 is pulled downwards, the bolt 3 no longer catches the movable cover 5, and the pull rod is used for ejecting the movable cover 5, so that the movable cover 5 and the sleeve base 1 are at least 90 degrees, and the operation of the fuse tube is facilitated (as shown in figure 3). After the movable cover 5 is opened, the pull ring 6 is released, the bolt 3 is not clamped on the movable cover, and the bolt 3 is driven to reset due to the self elastic recovery of the first elastic element 2 (as shown in fig. 4). At this time, the safety tube can be drawn out by the safety take-out device. After the replacement of the protective tube is completed, the movable cover 5 can be turned down by using the brake pull rod, the top end of the brake pull rod is inserted into the movable cover operation hole 4, the other end of the brake pull rod exerts force towards the first elastic piece 2, the bolt 3 is stressed to move downwards, and meanwhile, the movable cover 5 moves inwards. When the outer side of the movable cover 5 moves to the inner side of the protruding end 8 of the bolt 3, the bolt 3 is lifted upwards under the self elastic recovery action of the first elastic piece 2, and then the movable cover is clamped.
Preferably, the locking part further comprises a pull ring fixing device, in particular a U-shaped member made of a rigid material in this embodiment, when the plug pin 3 is moved down, the plug pin is hung on the pull ring 6, and the downward force is applied to the pull ring 6 and the plug pin 3 by the gravity thereof, so that the protruding end 8 of the plug pin 3 is far away from the casing base 1, thereby further facilitating the replacement of the fuse tube. After the change is finished, the movable cover 5 is turned down by the brake pull rod, the pull ring fixing device is taken down, and the bolt 3 can reset due to the self elasticity recovery of the first elastic piece 2. Therefore, the movable cover 5 can be turned down only by turning the pull-out rod, the other end of the pull-out rod does not need to exert force in the direction of the spring, and the convenience of operation is further improved.
The 35kV high-altitude high-voltage fuse bushing type self-locking end cover disclosed by the invention can enable an operator to open and close the movable cover outside the 35kV high-altitude high-voltage fuse on the ground by means of a common tool such as a brake pull rod through the mutual matching of the movable cover, the movable cover operation hole and the unlocking operation part, so that the further replacement operation of a fuse tube is facilitated, the defect that the safety hazard caused by high-altitude operation is avoided and the safety of the operator is ensured when the operator climbs to the height of 4-6 m in the prior art is overcome.
Meanwhile, by adopting the technical scheme of the invention, the number of operating personnel can be reduced, the carrying of the insulating ladder is not needed any more, the manpower and material resources for carrying are saved, the carrying cost is saved, meanwhile, a specially-assigned staircase is not needed any more when the personnel operate, and the manpower cost is further saved.
Finally, by adopting the technical scheme of the invention, the technical problems that an insulating ladder needs to be allocated nearby after the fuse is fused and a plurality of persons need to cooperate to operate and replace the fuse in the prior art are solved, the replacement time after the fuse is fused can be ensured, and the safe and stable operation of a power grid is further ensured. On the one hand, the working efficiency is improved, and on the other hand, the production cannot be influenced by fusing of the fuse.
In order to further improve the usability of the bushing type self-locking end cover of the 35kV overhead high-voltage fuse, in one embodiment of the invention, the movable cover 5 can be turned upwards by 180 degrees (as shown in fig. 5) by using a pull rod, so that the movable cover 5 can be fixed above the bushing base 1 without using the pull rod to fix the movable cover 5. Make the operation personnel when the operation, both hands all can carry out the fuse change operation on next step, and the practicality is stronger. Preferably, the direction from the sleeve base 1 to the movable cover 5 is provided with a certain angle, so that the fuse tube can be conveniently taken out and put in.
In order to further improve the usability of the bushing type self-locking end cap of the 35kV high-altitude high-voltage fuse, in another embodiment of the invention, the accommodating portion is provided with a second elastic member sleeved on the fuse tube, and the second elastic member is configured to drive the axial displacement of the fuse tube due to the elastic recovery of the second elastic member when the accommodating portion is opened. The second elastic member in this embodiment is a spring, but is not limited thereto. Specifically, when the movable cover 5 is opened, the fuse tube is forced outward by the "sleeve spring" so that the fuse tube can be ejected from the accommodating portion, thereby facilitating the fuse tube replacement operation in the next step.
In order to further improve the usability of the bushing-type self-locking end cap of the 35kV overhead high-voltage fuse, in one embodiment of the invention, a damping unit 7 (as shown in fig. 6) is fixedly arranged on the bushing base 1 and on an inner wall close to the top end of the bushing base 1, and the damping unit 7 is configured to apply a damping force to the fuse tube pushed by the first elastic member 2 due to the opening of the movable cover 5, so that the fuse tube can be partially ejected out of the accommodating portion, on one hand, the damage to operators can be avoided, and on the other hand, the replacement operation of the fuse tube in the next step can be facilitated. Preferably, the damping unit 7 of this embodiment is a rubber pad fixedly disposed around the inner wall of the casing base 1.
In order to further improve the usability of the bushing type self-locking end cover of the 35kV high-altitude high-voltage fuse, in another embodiment of the invention, the bushing base 1 and the movable cover 5 are made of aluminum material, and the locking portion and the unlocking portion are made of rigid material. By adopting the materials, the 35kV high-altitude high-voltage fuse protector can be ensured to have a better use effect, and is convenient to process and use.
The 35kV overhead high-voltage fuse bushing type fuse tube gripping device of the embodiment will be described in detail, wherein a schematic structural diagram of an integrated embodiment is shown in fig. 1. As shown in fig. 1, the device specifically includes a base support 13, the frame 13 is a frame formed by four frame edges which are integrally enclosed, the cross section of the base support 13 is semicircular to accommodate the following insulating rod 14, so as to increase the operation height of the bushing type fuse tube gripping device of the 35kV high-altitude high-voltage fuse, and an operator can complete the replacement operation on the ground.
Fig. 7 and 8 show a front view and a right view of a base bracket and a fuse tube clamping unit in the 35kV high-altitude high-voltage fuse bushing type fuse tube gripping device according to the embodiment. As can be seen from fig. 8 and 9, the safety clamping unit, which is disposed above the base frame 13, includes two semicircular assemblies 15; the first semicircular member 151 is welded to the base frame 13, and the second semicircular member 152 is connected to the base frame 13 by a hinge. The safety gripping unit further comprises a semicircular reinforcement 16 arranged in parallel with the semicircular components 15. The semicircular reinforcing member 162 is connected to the second semicircular component 152 via the first rod 201. Preferably, there are two semicircular reinforcing members, and the other semicircular reinforcing member 161 is connected to the first semicircular member 151 through the second rod 202. Both ends of the first rod body 201 and the second rod body 202 are connected by nuts. When carrying out the protective tube clamp and getting, can increase this 5kV high altitude high voltage fuse bushing type protective tube grabbing device to the impetus of protective tube, improve its overall stability and operability.
A force arm rod 12 is welded on the first rod body 201, and a spring 11 is arranged between the force arm rod 12 and the second semicircular component 152; in the embodiment, the spring 11 is a torsion spring, and the torsion spring of a conventional clip can be specifically referred to. One end of the spring 11 is connected to the arm lever 12, the middle portion of the spring is sleeved outside the first lever 201, and the other end of the spring is connected outside the second lever 202. The arm lever 12 is configured to receive a downward force to close the two semicircular elements 15 and an upward force to open the two semicircular elements 15. Under the action of the spring, when the force arm lever 12 does not bear external force, the two semicircular assemblies 15 are in an open state, and a gap for the fuse tube to penetrate along the radial direction of the fuse tube is formed between the two semicircular assemblies. As shown in fig. 7, by applying a downward force to the arm 12, the spring 11 is twisted, so that the semicircular assemblies 15 are closed, and the semicircular assemblies 15 are clamped. The arm 12 is now forced upwards and the two semicircular assemblies 15 are opened, so that the fuse tube can be removed and placed in the fuse tube to be replaced for further replacement.
An operating member is sleeved on the arm lever 12, and the operating member can be fixedly sleeved on the arm lever 12 and has a certain length so that an operator can apply downward force to the arm lever 12 on the ground. Specifically, can be for the insulating body of rod of top area ring, during the use, on locating arm of force pole 12 with its ring cover earlier, treat when two semicircle subassemblies 15 press from both sides the protective tube and get, exert decurrent power so that it diminishes to make two semicircle subassemblies 15 open and shut the angle, and then realize pressing from both sides getting the protective tube. Preferably, the operating member is a rope 25. One end of the cable 25 is securely tied to the arm bar 12. The specific operation steps are the same as those of an insulating rod body with a circular ring at the top end. The rope 25 is used as an operation component, so that on one hand, the whole weight of the 35kV overhead high-voltage fuse bushing type fuse tube grabbing device can be reduced, and the operation of operators is facilitated; on the other hand, make things convenient for manufacturing, make things convenient for the operation personnel to carry, and be convenient for accomodate.
In order to further improve the usability of the 35kV overhead high-voltage fuse bushing type fuse tube gripping device, in one embodiment of the invention, the gripping device further comprises a rope fixing device, wherein the rope fixing device comprises a rope clamper 22 configured to fix the rope 25. Specifically, the rope clamp 25 can be selected as a clamp, which can fixedly clamp the rope 25 on the lower part of the insulating rod 14, so that the downward force applied to the insulating rod 14 can realize the adjustment of the opening and closing angle of the two semicircular assemblies 15, and further realize the replacement of the fuse tube. The rope fixing device is arranged on the insulating rod, so that the operation is convenient, and the storage is convenient to a certain extent; the invention has simple structure and design, has considerable advantages in weight and is convenient for operators to operate.
In order to further improve the usability of the 35kV aerial high voltage fuse bushing type safety tube gripping device, in another embodiment of the present invention (as shown in fig. 9, 10 and 11), the rope fixing device comprises a frame 26 and a locking ring 21. Specifically, the frame 26 is defined by four frame edges, and the cross section of the frame 26 is semicircular; the rope clamp 22 is fixedly arranged on the first frame edge 261; the second frame edge 262 is externally provided with a screw through hole 24. One end of the locking ring 21 is sleeved on the fourth frame edge 264, and the other end is provided with a screw through hole 24. The two screw through holes 24 are combined together, and then a screw and a nut (not shown in the drawing) are inserted into the screw and locked, so that the frame 26 is fixedly sleeved outside the insulating rod 14.
In order to further improve the usability of the 35kV high-altitude high-voltage fuse bushing type fuse tube gripping device, in one embodiment of the present invention, the fourth frame edge 264 is provided with L-shaped rope windings 23, and the number of the rope windings 23 is 2. The rope 25 is wound at least around the two rope windings 23 and then fixed by the rope clamp 22, further enhancing the stability of the rope 25.
In order to further improve the usability of the 35kV high-altitude high-voltage fuse bushing type fuse tube gripping device, in one embodiment of the invention, the 35kV high-altitude high-voltage fuse bushing type fuse tube gripping device further comprises a side bracket 17, one end of the side bracket is connected to the two semicircular assemblies 15, and the other end of the side bracket is connected to the base bracket 13; and the other end of the semi-circular reinforcing part is connected to the outermost side of the semi-circular reinforcing part 16, and the other end of the semi-circular reinforcing part is connected to the basic bracket 13, so that the stability of the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device is further enhanced.
The insulating rod 14 is sleeved on the inner side of the base bracket 13; the insulating rod 14 is sleeved with a locking belt 19, through holes are formed in two ends of the locking belt 19, and the locking belt is arranged to penetrate through a bolt structure 18 to fix the base support 13 and the insulating rod 14.
According to the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device, the fuse tube clamping unit and the insulating rod are arranged, so that the operation height is increased, and the force arm rod capable of adjusting the opening and closing angles of the fuse tube clamping unit is arranged, so that an operator can replace a fuse tube on the ground, the defect that in the prior art, the operator climbs to the height of 4-6 m to replace the fuse tube is overcome, potential safety hazards caused by high-altitude operation can be avoided, and the safety of the operator is guaranteed; meanwhile, the safety tube clamping unit is also provided with a basic bracket to increase the stability of the safety tube clamping unit and facilitate the operation of an operator; in addition, the protective tube clamping device is also provided with the semicircular reinforcing piece, so that on one hand, the stability of clamping the protective tube is improved, the operability of an operator is improved, and the positioning during replacement is facilitated; on the other hand, the damage of other adjacent components caused by the instability of the protective tube can be avoided.
Secondly, by adopting the technical scheme of the invention, the number of operating personnel can be reduced, the carrying of the insulating ladder is not needed any more, the manpower and material resources for carrying are saved, the carrying cost is saved, meanwhile, the special escalator is not needed any more when the personnel carry out the operation, and the manpower cost is further saved.
Finally, by adopting the technical scheme of the invention, the technical problems that an insulating ladder needs to be allocated nearby after the fuse is fused and a plurality of persons need to cooperate to operate and replace the fuse in the prior art are solved, the replacement time after the fuse is fused can be ensured, and the safe and stable operation of a power grid is further ensured. On the one hand, the working efficiency is improved, and on the other hand, the production cannot be influenced by fusing of the fuse. Has stronger practicability and popularization value.
In order to further increase the usability of the 35kV overhead high-voltage fuse bushing type fuse holder gripping device, in one embodiment of the present invention (as shown in fig. 12), the insulating rod 14 specifically includes an outer tube 141 and an inner tube 142 disposed through the outer tube 141. The grabbing height of the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device can be increased, and the device is convenient to store.
In order to further increase the usability of the 35kV high altitude high voltage fuse bushing type fuse tube grabbing device, in another embodiment of the present invention, a locking assembly 143 is further disposed between the outer tube body 141 and the inner tube body 142, and the locking assembly 143 may constitute a lock or unlock for the axial movement of the inner tube body 142 relative to the outer tube body 141, so as to lock the relative movement of the outer tube body 141 and the inner tube body 142 before the insulating rod 14 grabs the fuse tube, which is convenient for an operator to operate.
As shown in fig. 1, a preferred structure of the locking assembly 4 is that a reinforcing block 1433 is configured on the outer circumference of one end of the outer tube body 141 near the bottom, the locking assembly 143 specifically includes a threaded hole penetrating through the reinforcing block 1433 and the side wall of the outer tube body 141 and communicating with the inner hole of the outer tube body 141, a screw 1431 penetrating through the threaded hole, and a handle lever 1432 fixed on one end of the outer portion of the threaded hole, and the screw 1431 can be rotated by the handle lever 1432 to make the screw 1431 abut against the inner tube body 142 or loosen the inner tube body 142, so as to lock or unlock the inner tube body 142 moving relative to the outer tube body 11. Obviously, this locking subassembly 143 also can refer to the rotatory locking structure of current telescopic link, but the preferred scheme of this embodiment is comparatively laborsaving, when being convenient for operating personnel one-hand to hold, carries out the unblock operation.
Based on above-mentioned structure, when 35kV high altitude high voltage fuse bushing type protective tube needs to be changed, the 35kV high altitude high voltage fuse bushing type protective tube grabbing device of this embodiment use as follows:
(1) the operator can release the blocking of the movable cover 5 by the latch 3 by applying a downward force to the pull ring 6, and then turn the movable cover 5 upward by 180 ° using the brake lever. At this point, the fuse tube may automatically partially eject.
(2) After the removable lid 5 is opened, the pull ring 6 is released, and the bolt 3 is reset due to the self-elastic recovery of the first elastic member 2. At this time, the 35kV high-altitude high-voltage fuse bushing type fuse tube gripping device of the embodiment can be used for replacing the fuse tube.
(3) The operator adjusts the length of the insulating rod 14 by the axial movement of the inner pipe body 142, adjusts the gripping angle of the semicircular assemblies 15 by applying a downward force to the force arm 12, and clamps the fuse therein by the semicircular assemblies 15, thereby taking out the fuse to be replaced.
(4) The operating personnel place the new fuse clamp in two semi-circular subassemblies 15 to it puts into former fuse position, later takes off the 35kV high altitude high voltage fuse bushing type fuse grabbing device of this embodiment.
(5) The angle of the bolt 3 is adjusted, and the movable cover 5 is closed by adopting a brake pull rod, so that the replacement operation of the fuse tube is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a device is changed to 35kV high altitude high voltage fuse bushing type protective tube which characterized in that: the self-locking fuse comprises a 35kV high-altitude high-voltage fuse bushing type self-locking end cover, wherein the self-locking end cover comprises a bushing base (1) for accommodating a fuse tube; the sleeve comprises a sleeve base (1), a movable cover (5) movably connected with the sleeve base (1), wherein the movable cover (5) is provided with a movable cover protruding end (51), the movable cover (5) is L-shaped, and the movable cover protruding end (51) is provided with a movable cover operating hole (4); a locking portion and an unlocking portion; and
the 35kV high-altitude high-voltage fuse bushing type fuse tube grabbing device comprises a basic bracket (13); the safety clamping unit is arranged above the base support (13) and can bear external force to open and close the semicircular components (15); the insulating rod (14) is sleeved on the inner side of the base bracket (13); insulating rod (14) overcoat is equipped with locking band (19), locking band (19) both ends are equipped with the through-hole, and it is set up to wear to establish bolt structure (18) in order to realize basic support (13) with the fixed of insulating rod (14).
2. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 1, characterized in that: the locking part comprises a first elastic piece (2) and a bolt (3); the first elastic piece (2) is fixedly connected below the sleeve base (1), is configured to be compressed when the accommodating part is closed, and can drive the bolt (3) to reset due to the elastic recovery of the first elastic piece when the accommodating part is opened; the bolt (3) is fixedly connected to the first elastic piece (2), a protruding end (8) is arranged on the bolt (3), the bolt (3) is L-shaped, and the protruding end (8) of the bolt is configured to lock the movable cover (5) when the accommodating part is closed;
the safety clamping unit comprises two semicircular assemblies (15) which are respectively a first semicircular assembly (151) and a second semicircular assembly (152); the first semicircular assembly (151) is welded on the base bracket (13), and the second semicircular assembly (152) is connected with the base bracket (13) through a hinge; the safety clamping unit also comprises a semicircular reinforcing piece (16) which is arranged in parallel with the two semicircular assemblies (15); the semicircular reinforcing piece (16) is connected with the second semicircular component (152) through a first rod body (20); a force arm rod (12) is welded on the first rod body (20), and a spring (11) is arranged between the force arm rod (12) and the second semicircular component (152); the force arm lever (12) is configured to receive a downward force to close the two semicircular assemblies (15) and receive an upward force to open the two semicircular assemblies (15); and an operating component is sleeved on the outer side of the arm-of-force lever (12).
3. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 2, characterized in that: the unlocking operation part can be driven by external force to drive the bolt (3) to move downwards so as to release the blockage of the bolt (3) on the movable cover (5); the unlocking operation part is arranged at one end, far away from the first elastic piece (2), of the bolt (3), and the unlocking operation part is a pull ring (6).
4. The device for replacing the bushing type fuse of the 35kV high-altitude high-voltage fuse according to claim 1, wherein: a damping unit (7) is fixedly arranged on the sleeve base (1) and the inner wall close to the top end of the sleeve base (1), and the damping unit (7) is configured to apply damping force to the fuse tube pushed by the first elastic piece (2) due to the opening of the movable cover (5), so that the fuse tube can be partially ejected out of the accommodating part.
5. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 1, characterized in that: the removable cap (5) can be turned 180 ° relative to the cannula base (1).
6. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 1, characterized in that: the accommodating part is provided with a second elastic piece sleeved on the protective tube, and the second elastic piece is configured to drive the axial displacement of the protective tube due to the elastic recovery of the second elastic piece when the accommodating part is opened.
7. The 35kV high altitude high voltage fuse bushing fuse tube replacing device according to any one of claims 1-6, wherein: the insulating rod (14) comprises an outer tube (141) and an inner tube (142) penetrating through two ends of the outer tube (141);
a locking assembly (143) is arranged between the inner pipe body (142) and the outer pipe body (141) so as to lock or unlock the inner pipe body (142) relative to the outer pipe body (141) along the axial direction of the outer pipe body;
the locking assembly (143) comprises a threaded hole formed through the side wall of the outer tube body, a screw rod (1431) arranged in the threaded hole in a penetrating mode, and a handle rod (1432) fixedly arranged at one end of the outer portion of the screw rod (1431), wherein the screw rod (1431) can be pressed against or loosened from the inner tube body (142) due to rotation of the handle rod (1432).
8. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 7, characterized in that: the operating member is a rope (25).
9. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 7, characterized in that: 35kV high altitude high voltage fuse bushing type protective tube grabbing device still includes rope fixing device, rope fixing device includes
A rope gripper (22) configured to secure the rope (25);
the frame (26) is formed by integrally enclosing four frame edges, and the cross section of the frame (26) is semicircular; the frame (26) comprises a first rim (261), a second rim (262) and a fourth rim (264); the rope clamping device (22) is fixedly arranged on the first frame edge (261); a screw through hole (24) is formed outside the second frame edge (262);
one end of the locking ring (21) is sleeved on the fourth frame edge (264), and the other end of the locking ring is provided with a screw rod through hole (24).
10. The 35kV high altitude high voltage fuse bushing type fuse tube replacing device according to claim 7, characterized in that: the fourth frame edge (264) is provided with L-shaped rope winding positions (23), and the number of the rope winding positions (23) is 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905577.XA CN110660625B (en) | 2019-09-24 | 2019-09-24 | 35kV high altitude high voltage fuse bushing type protective tube replacement device |
| PCT/CN2019/130039 WO2021056915A1 (en) | 2019-09-24 | 2019-12-30 | 35 kv high-altitude high-voltage fuse protector bushing-type fuse replacement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905577.XA CN110660625B (en) | 2019-09-24 | 2019-09-24 | 35kV high altitude high voltage fuse bushing type protective tube replacement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110660625A true CN110660625A (en) | 2020-01-07 |
| CN110660625B CN110660625B (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910905577.XA Active CN110660625B (en) | 2019-09-24 | 2019-09-24 | 35kV high altitude high voltage fuse bushing type protective tube replacement device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110660625B (en) |
| WO (1) | WO2021056915A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113823541A (en) * | 2021-09-30 | 2021-12-21 | 贵州电网有限责任公司 | Quick replacement device for 35kV outdoor PT high-voltage fuse protective tube |
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Also Published As
| Publication number | Publication date |
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| CN110660625B (en) | 2021-05-28 |
| WO2021056915A1 (en) | 2021-04-01 |
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