CN112038050A - Safety protection system for power distribution network line transformer - Google Patents

Abstract

The invention relates to a safety protection system of a power distribution network line transformer, which comprises a bottom platform, U-shaped frame plates and an outer protection mechanism, wherein the U-shaped frame plates are symmetrically arranged at the front end and the rear end of the bottom platform, the protruding ends of the U-shaped frame plates are connected in a sliding fit mode, and the outer protection mechanism is arranged at the upper end of the bottom platform.

Description

A safety protection system for distribution network line transformers

technical field

The invention relates to the technical field of transformer protection, in particular to a transformer safety protection system for distribution network lines.

Background technique

The distribution network refers to the power network that receives electrical energy from the transmission network or regional power plants, and distributes it on-site through distribution facilities or distributes it to various users step by step according to voltage. It is composed of overhead lines, cables, towers, distribution transformers, isolation switches It is a circuit composed of , reactive power compensator and some auxiliary facilities, which plays an important role in distributing electric energy in the power network. The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, secondary coil and iron core. (magnetic core), the main functions include voltage transformation, current transformation, impedance transformation, isolation, voltage regulation (magnetic saturation transformer), etc. Transformers are often used in electrical equipment and wireless circuits for voltage rise and fall, impedance matching and safety isolation, etc. It is one of the main equipment of power plants and substations. Correctly installing the transformer is one of the important conditions to ensure the safe operation of the transformer. The installation methods of the transformer can be divided into two categories: indoor and outdoor, of which the outdoor includes pole type (overhead type). Installation), pier type and floor type, the indoor is called the distribution room, but the following problems will occur during the outdoor installation of the transformer:

1. When the transformer is outdoors, the protective measures taken around it are relatively small, so that the probability of falling off and bird collision in the overhead installation state is increased, and it is prone to accidental injury and accidental injury when it is installed on the ground. The transformer itself is faulty, etc.;

2. The integrity and unity of the protective structure make the volume of the transformer placement space formed by itself in an invariable state, and thus the adaptability to transformers of different volumes is low. At the same time, the protective structure around the overhead-installed transformer is prone to debris hooks. The phenomenon of hanging, so that there is a hidden danger that affects the operation of the transformer.

SUMMARY OF THE INVENTION

(1) Technical scheme

In order to achieve the above purpose, the present invention adopts the following technical scheme, a safety protection system for a distribution network line transformer, comprising a base, a U-shaped frame plate and an outer protection mechanism, and the front and rear ends of the base are symmetrically arranged with a U-shaped A shelf plate, the protruding ends of the U-shaped shelf plate are connected by sliding fit, and an outer protection mechanism is arranged on the upper end of the bottom platform.

The outer protection mechanism includes a rotating shaft, a round table, a stop claw, a bayonet, a connecting rod, a vertical plate, a counter-rod, a longitudinal rod, a horizontal rod and a support column. The front side of the rotating shaft is provided with a No. The upper end of the pin shaft is connected with the lower end of the round table. The No. 1 pin shaft is symmetrically installed with stop claws up and down by sliding fit. The rotating shaft is located between the stopping claws. The upper end of the rotating shaft is provided with a ring groove. The inner end faces of the claws are connected by a sliding fit, the rear end of the stop claws is provided with a threaded through hole, and the threaded through holes are connected with a bayonet by a threaded fit, and the lower end face of the round table is installed with a No. 2 bayonet. The No. 2 pin shafts are evenly arranged along the circumference of the round table, and the rotating shaft and the stop claw are located on the inner side of the No. 2 pin shaft. The lower end of the No. 2 pin shaft is installed with a connecting rod by sliding fit, and the outer end of the connecting rod is fitted with a sliding fit. The No. 3 pin shaft is installed, the upper end of the No. 3 pin shaft is connected with the lower end of the vertical plate, the upper and lower ends of the inner side of the vertical plate are symmetrically installed with a counter-rod, and one end of the counter-rod is connected with the outer end of the longitudinal rod by sliding fit. The other end is connected with the outer end of the cross bar by sliding fit, the included angle between the counter bar and the vertical bar and the horizontal bar is 45°, the vertical bar and the horizontal bar are connected by sliding fit, and the vertical bar The angle between it and the cross bar is 90°. The middle part of the lower end face of the longitudinal bar at the lower end of the vertical plate and the middle part of the lower end surface of the lower end cross bar of the vertical plate are installed with support columns. Connected, the support column is located on the outside of the round table, and the transformer is slightly contacted with the upper end of the round table by manual means. The transformer is located in the space formed by the horizontal rod and the vertical rod. Then the round table is manually rotated clockwise, and the round table drives the connecting rod to rotate synchronously. The plate moves in a straight line in a direction perpendicular to itself under the inward pulling force given by the connecting rod, the vertical plate pushes the counter-rod to move synchronously, and the counter-rod presses the horizontal and vertical rods connected to it inward at the same time, supporting The column moves synchronously along the upper end of the base with the horizontal bar and the vertical bar. At this time, the volume of the space formed by the horizontal bar and the vertical bar is gradually reduced until the transformer is matched with the horizontal bar and the vertical bar, and then manually tightened to the inside to stop. The claws are clamped in the ring groove, and the stop claws are fastened by the bayonet. At this time, the round table is fixed under the cooperation of the stop claws and the bayonet, and then the U-shaped frame plate is mechanically fixed. The bottom platform and the transformer are hoisted to the installation position together, and finally the U-shaped frame plate and the installation position are welded or screwed manually.

As a preferred technical solution of the present invention, convex plates are symmetrically installed at the front and rear ends of the base, and the convex plates are connected with the concave end surfaces of the U-shaped frame plate by sliding fit. A rectangular groove is symmetrically opened. The inner bottom wall of the rectangular groove is equidistantly installed with a compression spring from left to right. The outer end of the compression spring is connected to the inner end of the base plate. The gear teeth, the outer side of the clamping gear teeth are provided with stop gear teeth at equal distances from left to right, the stop gear teeth and the clamping gear teeth are connected by sliding fit, and the outer end of the stop gear teeth is connected with the inner concave end face of the U-shaped frame plate. Connected, manually press the base plate with the clamping wheel teeth into the rectangular groove, and manually move the entire bottom table to adjust its position. When the bottom table moves to the corresponding position, manually adjust the clamping wheel teeth. Clamp between the gears, then loosen the base plate, the base plate quickly pops out of the rectangular groove under the action of the compression spring, the base plate drives the teeth of the clamping wheel to move synchronously, and the teeth of the clamping wheel are clamped between the teeth of the stop wheel. At this time, the bottom table and the U-shaped frame The plates are relatively fixed, and the cooperation between the base plate, the compression spring, the teeth of the stop wheel and the teeth of the clamping wheel can make the installation position of the base plate adaptable according to the installation requirements and realize the rapid fixing process of the base plate, thereby improving the device overall controllability.

As a preferred technical solution of the present invention, the left and right concave ends of the U-shaped frame plate are symmetrically installed with embracing rings, the embracing rings are made of elastic material, and the front and rear oppositely facing embracing rings are connected by a sliding fit method, and the front and rear are facing each other. A return plate is installed between the embracing rings by sliding fit, and the U-shaped frame plate together with the bottom platform and the transformer are mechanically hoisted to the installation position, and the poles are located in the ring structure formed by the embracing rings. Put the return plate on the holding ring and tighten the holding ring inward until the holding ring is fastened to the pole, and then manually weld or screw the connection between the U-shaped frame plate and the installation point of the pole. The cooperation between the embracing ring and the return plate can play an auxiliary role in the connection between the U-shaped plate and the electric pole, so as to improve the firmness of the whole device in an overhead state.

As a preferred technical solution of the present invention, the same structure is installed between the longitudinal rods and between the horizontal rods, wherein a telescopic frame is symmetrically arranged between the longitudinal rods, and the telescopic direction of the telescopic frame is along the horizontal direction. The frame is located on the outside of the horizontal bar. The left and right ends of the telescopic frame are symmetrically installed with ear plates. The ear plates are arranged up and down. The outer end of the ear plate is connected with the inner end face of the longitudinal bar. It can protect and block the transformer around it, so as to prevent the transformer from falling, and at the same time avoid the safety accident caused by birds or people contacting the transformer and the failure of the transformer itself.

As a preferred technical solution of the present invention, L-shaped rods are arranged up and down above the circular platform, the L-shaped rods are arranged at equal distances in the clockwise direction, and the angle between adjacent L-shaped rods in the horizontal direction is 90° °, one end of the L-shaped rods on the front and rear sides above the round table is connected with the outermost end of the horizontal rod, one end of the L-shaped rods on the left and right sides above the round table is connected with the outermost end of the longitudinal rod, and the L-shaped rod and the horizontal rod are connected with each other. The connection and the connection between the L-shaped rod and the longitudinal rod are arranged in a staggered state. The outer end face of the short end of the L-shaped rod is installed with an ear seat, and the No. 4 pin is installed between the upper and lower opposite ear seats. The shutter roll is installed in the matching method. The upper and lower ends of the shutter roll are symmetrically installed with splints. The outer end of the splint is connected with the No. 1 electric slider. The No. 1 electric slider and the ear seat are perpendicular to each other. When the weather is in a bad situation, the No. 1 electric slider drives the splint to move along the L-shaped rod, and the shutter roll is synchronously unwinding under the drive of the splint. Until the unwinding part of the shutter roll wraps the transformer around, at this time the transformer is in a semi-enclosed space, and the coordinated movement between the shutter roll, the No. 1 electric slider and the splint can protect the transformer and block external influences Therefore, the probability of transformer failure or appearance deformation due to direct contact with external influencing factors is reduced.

As a preferred technical solution of the present invention, the inner end face of the long end of the L-shaped rod is installed with a No. 2 electric sliding block by sliding fit, and a vertical plate is connected between the inner ends of the No. 2 electric sliding block that are vertically opposite. The inner end face of the vertical plate is installed with a hook brush at an equal distance from top to bottom. The inner end face of the hook brush and the telescopic frame are connected by sliding fit, and the second electric slider drives the vertical plate to synchronize along the long end of the L-shaped rod. The vertical plate drives the hook brush to move synchronously, and the hook brush can clean the telescopic frame, so as to avoid the hidden trouble of the transformer caused by the hooked debris on the surface of the telescopic frame, so as to achieve the purpose of protecting the transformer.

As a preferred technical solution of the present invention, the middle part of the upper cross bar on the vertical plate and the middle part of the upper vertical bar on the vertical plate are both installed with the same structure, wherein a connecting plate is installed in the middle part of the upper horizontal bar on the vertical plate, connecting the A cylinder is installed at the lower end of the outer end face of the plate, and a fan blade is installed on the outer end of the cylinder by sliding fit. The fan blade is located above the lower end of the vertical plate. The self-rotation movement, so that the air flow speed around the transformer is increased, which is beneficial to improve the overall heat dissipation of the transformer.

(2) Beneficial effects

1. A distribution network line transformer safety protection system according to the present invention, the present invention adopts the design concept of combining multiple protection structures to carry out the safety protection of distribution network line transformers, and the provided external protection mechanism can protect the transformer around the At the same time, the volume of the transformer placement space formed by the outer protection mechanism is in a regulated state, so that it can adapt to the clamping protection treatment of transformers of different sizes within a certain range, thereby improving the overall utilization of the equipment;

2. The cooperation between the telescopic frame of the present invention, the horizontal bar and the vertical bar can protect and block the transformer around it, so as to prevent the transformer from falling, and at the same time avoid the safety of birds or people contacting the transformer. Accidents and the failure of the transformer itself;

3. The coordinated movement between the shutter roll, the No. 1 electric slider and the splint according to the present invention can protect the transformer and block external influence factors, thereby reducing the operation of the transformer due to direct contact with external influence factors. The probability of failure or appearance deformation phenomenon;

4. The cooperation between the vertical plate, the No. 2 electric sliding block and the hook brush according to the present invention can clean up the telescopic frame, so as to avoid the hidden troubles such as the failure of the transformer caused by the hooked debris on the surface of the telescopic frame. Thus, the purpose of protecting the transformer can be achieved;

5. The cooperation between the base plate, the compression spring, the locking gear teeth and the clamping gear teeth according to the present invention can make the installation position of the base plate adaptable according to the installation requirements and realize the fast fixing process of the base plate, thereby improving the device. overall controllability.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the first sectional view of the present invention;

Fig. 3 is the second sectional view of the present invention;

Fig. 4 is the third sectional view of the present invention;

Fig. 5 is the partial enlarged view of X direction of Fig. 1 of the present invention;

Fig. 6 is the Y-direction partial enlarged view of Fig. 1 of the present invention;

Fig. 7 is the Z-direction partial enlarged view of Fig. 4 of the present invention;

FIG. 8 is a partial enlarged view of the M direction of FIG. 4 of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention may be implemented in many different ways as predetermined and covered by the claims.

As shown in Figures 1 to 8, a distribution network line transformer safety protection system includes a base 1, a U-shaped frame plate 2 and an outer protection mechanism 3. The front and rear ends of the base 1 are symmetrically provided with U The protruding ends of the U-shaped frame plate 2 and the U-shaped frame plate 2 are connected by sliding fit, and the upper end of the base 1 is provided with an outer protection mechanism 3 .

The front and rear ends of the base table 1 are symmetrically installed with convex plates 10. The convex plates 10 and the concave end surfaces of the U-shaped frame plate 2 are connected by sliding fit. The upper and lower ends of the convex plate 10 are symmetrically provided with rectangular recesses. The inner bottom wall of the rectangular groove is equidistantly installed with a compression spring 11 from left to right, the outer end of the compression spring 11 is connected to the inner end of the base plate 12, and the upper end surface of the base plate 12 is equidistantly installed from left to right. Wheels are installed Tooth 13, the outer side of the gear teeth 13 is provided with gear teeth 14 equidistant from left to right, the gear teeth 14 and the gear teeth 13 are connected by sliding fit, and the outer end of the gear teeth 14 is connected to the U-shaped frame The concave end faces of the plate 2 are connected, and the base plate 12 with the clamping gear teeth 13 is manually pressed into the rectangular groove, and the overall position of the base table 1 has been adjusted by manually moving it. When the base table 1 moves to the corresponding position Afterwards, manual adjustment is used to make the teeth 13 of the clamping wheel sandwiched between the gears, and then the base plate 12 is loosened. 13 is clamped between the gear teeth 14. At this time, the base 1 and the U-shaped frame plate 2 are relatively fixed. The installation position of the table 1 can be adaptively changed according to the installation requirements, and the base table 1 can be quickly fixed, thereby improving the overall controllability of the device.

The left and right concave end surfaces of the U-shaped frame plate 2 are symmetrically installed with an embracing ring 20, the embracing ring 20 is made of elastic material, and the front and rear oppositely facing embracing rings 20 are connected by a sliding fit method. The return plate 21 is installed by sliding fit, and the U-shaped frame plate 2 together with the base 1 and the transformer are mechanically hoisted to the installation position, and the pole is located in the ring structure formed by the holding ring 20 at the same time. The return plate 21 is clamped on the embracing ring 20 and tightens the embracing ring 20 inward until the embracing ring 20 is fastened to the pole, and then manually welds or welds between the U-shaped frame plate 2 and the pole installation point. In the thread connection process, the cooperation between the holding ring 20 and the return plate 21 can play an auxiliary role in the connection between the U-shaped plate and the electric pole, so as to improve the firmness of the whole device in an overhead state.

The outer protection mechanism 3 includes a rotating shaft 30, a round table 31, a stop claw 32, a bayonet 33, a connecting rod 34, a vertical plate 35, a counteracting rod 36, a longitudinal rod 37, a horizontal rod 38 and a supporting column 39. The rotating shaft 30 There is a No. 1 pin shaft on the front side of the No. 1 pin shaft, the upper end of the No. 1 pin shaft is connected with the lower end of the round table 31, the No. 1 pin shaft is symmetrically installed with a stop claw 32 up and down by sliding fit, and the rotating shaft 30 is located between the stop claws 32. , the upper end of the rotating shaft 30 is provided with a ring groove, the ring groove and the inner end face of the stop claw 32 are connected by sliding fit, and the rear end of the stop claw 32 is provided with a threaded through hole, and the threaded through holes pass through the thread. A bayonet 33 is connected in a matching manner, the second bayonet 33 is installed on the lower end surface of the round table 31, the No. 2 pin shaft is evenly arranged along the circumference of the round table 31, and the rotating shaft 30 and the stop claw 32 are located on the inner side of the No. 2 pin shaft , the lower end of the No. 2 pin shaft is installed with a connecting rod 34 by sliding fit, the outer end of the connecting rod 34 is installed with a No. 3 pin shaft by sliding fit, and the upper end of the No. 3 pin shaft is connected with the lower end of the vertical plate 35, the vertical plate 35 A counter-rod 36 is installed symmetrically up and down on the inner side. One end of the counter-rod 36 is connected to the outer end of the longitudinal rod 37 by sliding fit, and the other end of the counter-rod 36 is connected to the outer end of the cross bar 38 by sliding fit. The angle between the moving rod 36 and the longitudinal rod 37 and the transverse rod 38 is 45°, the longitudinal rod 37 and the transverse rod 38 are connected by sliding fit, and the angle between the longitudinal rod 37 and the transverse rod 38 is 90°, the middle part of the lower end surface of the vertical rod 37 at the lower end of the vertical plate 35 and the middle part of the lower end surface of the lower end cross bar 38 of the vertical plate 35 are installed with a support column 39, and the lower end of the support column 39 is connected with the upper end of the base 1 by sliding fit. The support column 39 is located on the outer side of the round table 31, and the transformer is slightly contacted with the upper end of the round table 31 by manual means. The transformer is located in the space formed by the horizontal bar 38 and the vertical rod 37. The rod 34 rotates synchronously, the vertical plate 35 moves in a straight line in a direction perpendicular to itself under the inward pulling force given by the connecting rod 34, the vertical plate 35 pushes the counter-rod 36 to move synchronously, and the counter-rod 36 pushes inward at the same time. Press the horizontal bar 38 and the vertical bar 37 connected to it, and the support column 39 moves synchronously along the upper end of the base 1 along with the horizontal bar 38 and the vertical bar 37. At this time, the volume of the space formed by the horizontal bar 38 and the vertical bar 37 gradually shrinks until the horizontal bar 38 The transformer is clamped with the longitudinal rod 37. At this time, the surrounding area of the transformer is protected. Then manually tighten the stop claw 32 inward to make it clamped in the ring groove, and the stop claw 32 is locked by the detent 33. At this time, the round table 31 is fixed under the cooperation of the stop claw 32 and the bayonet 33, and then the U-shaped frame plate 2 and the bottom table 1 are mechanically hoisted to the installation position together with the transformer. Finally, By manually welding or screwing the connection between the U-shaped frame plate 2 and the installation point, the cooperation between the round table 31 , the connecting rod 34 , the vertical plate 35 and the resisting rod 36 can make the horizontal rod 38 and the longitudinal rod 37 . The volume that makes up the space is in a regulated state , so that it can adapt to the clamping protection treatment of transformers of different sizes within a certain range, thereby improving the overall utilization rate of the equipment.

The same structure is installed between the longitudinal rods 37 and the transverse rods 38, wherein a telescopic frame 370 is symmetrically arranged in front and rear between the longitudinal rods 37. On the outside of 38, the left and right ends of the telescopic frame 370 are symmetrically installed with ear plates 371, the ear plates 371 are arranged up and down, the outer end of the ear plate 371 is connected with the inner end face of the longitudinal rod 37, and the telescopic frame 370 is connected with the cross bar 38 and the longitudinal bar. The cooperation between 37 can protect and block the transformer around it, so as to prevent the transformer from falling, and at the same time avoid the safety accident caused by birds or people contacting the transformer and the failure of the transformer itself.

The top of the circular platform 31 is provided with L-shaped rods 310 up and down, the L-shaped rods 310 are arranged equidistantly in the clockwise direction, and the angle between the adjacent L-shaped rods 310 in the horizontal direction is 90°. One end of the L-shaped rods 310 on both sides is connected with the outermost end of the transverse rod 38, one end of the L-shaped rods 310 on the left and right above the circular table 31 is connected with the outermost end of the longitudinal rod 37, and the L-shaped rod 310 is connected with the transverse rod. The connection of 38 and the connection of the L-shaped rod 310 and the longitudinal rod 37 are arranged in a staggered state. The outer end face of the short end of the L-shaped rod 310 is installed with an ear seat 311, and a No. 4 pin is installed between the upper and lower opposite ear seats 311. The shutter roll 312 is installed on the No. 4 pin by sliding fit. The upper and lower ends of the shutter roll 312 are symmetrically installed with splints 313. The outer end of the splint 313 is connected with the No. 1 electric slider 314. It is connected to the long end of the L-shaped rod 310 by sliding fit, and the No. 1 electric slider 314 and the ear seat 311 are perpendicular to each other. When the weather is in a bad situation, the No. 1 electric slider 314 drives the splint 313 along the L The profile bar 310 moves, and the shutter roll 312 is driven by the splint 313 to perform a synchronous unwinding movement until the unwinding part of the shutter roll 312 wraps the transformer around it. At this time, the transformer is in a semi-enclosed space, and the shutter roll 312 The coordinated movement between the No. 1 electric slider 314 and the splint 313 can protect the transformer and block external influence factors, thereby reducing the probability of operation failure or appearance deformation of the transformer due to direct contact with external influence factors.

The inner end surface of the long end of the L-shaped rod 310 is installed with a No. 2 electric slider 31a by sliding fit, and a vertical plate 31b is connected between the inner ends of the No. 2 electric slider 31a that are vertically opposite. The inner side of the vertical plate 31b A hook brush 31c is installed on the end face at an equal distance from top to bottom. The inner end face of the hook brush 31c and the telescopic frame 370 are connected by sliding fit. Synchronous movement, the vertical plate 31b drives the hook brush 31c to move synchronously, and the hook brush 31c can clean the telescopic frame 370, so as to avoid the hidden trouble of the transformer caused by the hooked debris on the surface of the telescopic frame 370, thereby realizing The purpose of transformer protection.

The middle part of the cross bar 38 on the upper end of the vertical plate 35 and the middle part of the vertical bar 37 on the upper end of the vertical plate 35 are installed with the same structure, wherein the middle part of the horizontal bar 38 on the upper end of the vertical plate 35 is installed with the connecting plate 350, the connecting plate 350 A cylinder 351 is installed at the lower end of the outer end face of the cylinder 351, and a fan blade 352 is installed on the outer end of the cylinder 351 by sliding fit. The fan blade 352 is located above the cross bar 38 at the lower end of the vertical plate 35. Under the wind blowing, the rotation movement is performed, so that the air flow speed around the transformer is increased, which is beneficial to improve the overall heat dissipation of the transformer.

When working, manually press the base plate 12 with the gear teeth 13 into the rectangular groove, and manually move the entire base table 1 to adjust its position. Adjust so that the teeth 13 of the clamping wheel are clamped between the gears, then loosen the base plate 12, the base plate 12 quickly pops out of the rectangular groove under the action of the compression spring 11, the base plate 12 drives the teeth of the clamping wheel 13 to move synchronously, and the teeth of the clamping wheel 13 are stuck on the stop wheel Between the teeth 14, at this time, the base 1 and the U-shaped frame plate 2 are relatively fixed, and then the transformer is slightly contacted with the upper end of the round table 31 by manual means, and the transformer is located in the space formed by the horizontal bar 38 and the vertical bar 37, Then manually rotate the round table 31 clockwise, the round table 31 drives the connecting rod 34 to rotate synchronously, the vertical plate 35 moves in a straight line in a direction perpendicular to itself under the inward pulling force given by the connecting rod 34, and the vertical plate 35 pushes against it. The moving rod 36 moves synchronously, the resisting rod 36 squeezes the cross rod 38 and the vertical rod 37 connected to it inward at the same time, and the support column 39 moves synchronously along the upper end of the base 1 along with the horizontal rod 38 and the vertical rod 37. At this time, the cross rod 38 The volume of the space formed by the vertical rod 37 gradually shrinks until the transformer is clamped between the horizontal rod 38 and the vertical rod 37. At this time, the surrounding of the transformer is protected, and then the stop claw 32 is manually tightened inward to make it clamped in the ring. into the groove, and fasten the connection between the stop claws 32 through the bayonet 33. At this time, the circular platform 31 is fixed under the cooperation of the stop claws 32 and the bayonet 33, and then the U-shaped frame plate 2 is mechanically fixed. The bottom platform 1 and the transformer are hoisted to the installation position together, and the pole is located in the ring structure formed by the holding ring 20 at the same time, and the return plate 21 is clamped on the holding ring 20 and the holding ring 20 is tightened inwardly, Tighten the pole until the holding ring 20, and then manually weld or screw the connection between the U-shaped frame plate 2 and the pole installation point. The cooperation between the holding ring 20 and the return plate 21 can be The connection between the board and the pole plays an auxiliary role. Finally, welding or screw connection is performed between the U-shaped frame board 2 and the installation point by manual means, and the fan blade 352 rotates under the wind. As a result, the air flow speed around the transformer is improved, which is beneficial to improve the overall heat dissipation of the transformer. When the weather is in a bad situation, the splint 313 is driven by the No. 1 electric slider 314 to move along the L-shaped rod 310, and the shutter rolls. 312 performs synchronous unwinding motion driven by the splint 313 until the unwinding part of the shutter roll 312 wraps the transformer around, at this time the transformer is in a semi-enclosed space, the shutter roll 312, No. 1 electric slider 314 and The coordinated movement between the splints 313 can protect the transformer and block external factors. The second electric slider 31a drives the vertical plate 31b to move synchronously along the long end of the L-shaped rod 310, and the vertical plate 31b drives the hook brush 31c. Synchronous movement, the hook brush 31c can clean the telescopic frame 370, so as to avoid the hidden danger of the transformer failure caused by the hooked debris on the surface of the telescopic frame 370. And can achieve the purpose of protecting the transformer.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. The utility model provides a distribution network line transformer safety protection system, includes base frame (1), U type frame plate (2) and outer protective mechanism (3), its characterized in that: the front end and the rear end of the base platform (1) are symmetrically provided with U-shaped frame plates (2), the protruding ends of the U-shaped frame plates (2) are connected in a sliding fit manner, and the upper end of the base platform (1) is provided with an outer protection mechanism (3);

the outer protection mechanism (3) comprises a rotating shaft (30), a circular truncated cone (31), stopping claws (32), clamping pins (33), a connecting rod (34), a vertical plate (35), a pushing rod (36), a longitudinal rod (37), a cross rod (38) and a supporting column (39), wherein a first pin shaft is arranged on the front side of the rotating shaft (30), the upper end of the first pin shaft is connected with the lower end of the circular truncated cone (31), the stopping claws (32) are vertically and symmetrically arranged on the first pin shaft in a sliding fit mode, the rotating shaft (30) is positioned between the stopping claws (32), a ring groove is arranged at the upper end of the rotating shaft (30), the ring groove is connected with the inner side end face of the stopping claw (32) in a sliding fit mode, threaded through holes are formed in the rear end of the stopping claw (32), the clamping pins (33) are connected between the threaded through holes in a threaded fit mode, and a second clamping pin (33) is arranged, the second pin shafts are evenly distributed along the circumferential direction of the circular truncated cone (31), the rotating shaft (30) and the stopping claw (32) are located on the inner sides of the second pin shafts, the lower ends of the second pin shafts are provided with connecting rods (34) in a sliding fit mode, the outer ends of the connecting rods (34) are provided with third pin shafts in a sliding fit mode, the upper ends of the third pin shafts are connected with the lower ends of vertical plates (35), abutting rods (36) are symmetrically arranged on the upper and lower sides of the inner ends of the vertical plates (35), one ends of the abutting rods (36) are connected with the outer ends of the longitudinal rods (37) in a sliding fit mode, the other ends of the abutting rods (36) are connected with the outer ends of the transverse rods (38) in a sliding fit mode, included angles between the abutting rods (36) and the longitudinal rods (37) and the transverse rods (38) are 45 degrees, the longitudinal rods (37) are connected with the transverse rods (38) in a sliding fit mode, and included, support columns (39) are installed in the middle of the lower end face of a vertical plate (35) lower end longitudinal rod (37) and the middle of the lower end face of a vertical plate (35) lower end transverse rod (38), the lower ends of the support columns (39) are connected with the upper end of the base platform (1) in a sliding fit mode, and the support columns (39) are located on the outer side of the circular truncated cone (31).

2. The safety protection system for the power distribution network transformer of claim 1, wherein: the utility model discloses a structure of base platform, including base platform, U type frame plate (2), boss (10) are installed to both ends symmetry around base platform (1), link to each other through the sliding fit mode between the indent terminal surface of boss (10) and U type frame plate (2), the rectangle recess has been seted up to the upper and lower both ends face symmetry of boss (10), compression spring (11) are installed to turning right equidistance from a left side to the inner diapire of rectangle recess, the outside end of compression spring (11) links to each other with the medial extremity of base plate (12), the up end of base plate (12) is turned right equidistance from a left side and is installed the card teeth of a cogwheel (13), the outside of card teeth of a cogwheel (13) is turned right equidistance from a left side and is provided with ends teeth of a cogwheel (14), it links to each other through the sliding fit mode between ends.

3. The safety protection system for the power distribution network transformer of claim 1, wherein: u type frame plate (2) control indent terminal surface symmetry install and embrace ring (20), embrace ring (20) and be the elastic material, link to each other through the sliding fit method between preceding just relative embracing ring (20), install back template (21) through the sliding fit mode between preceding just relative embracing ring (20).

4. The safety protection system for the power distribution network transformer of claim 1, wherein: the utility model discloses a telescopic rack, including vertical pole (37), telescopic rack (370), horizontal direction is followed to the flexible direction of telescopic rack (370), telescopic rack (370) are located the outside of horizontal pole (38), otic placode (371) are installed to both ends symmetry about telescopic rack (370), otic placode (371) are arranged from top to bottom, the outside end of otic placode (371) links to each other with the medial surface of vertical pole (37).

5. The safety protection system for the power distribution network transformer of claim 1, wherein: l-shaped rods (310) are arranged above and below the circular truncated cone (31), the L-shaped rods (310) are arranged at equal intervals in the clockwise direction, an included angle between every two adjacent L-shaped rods (310) in the horizontal direction is 90 degrees, one end of each L-shaped rod (310) on the front side and the rear side above the circular truncated cone (31) is connected with the outermost end of the cross rod (38), one end of each L-shaped rod (310) on the left side and the right side above the circular truncated cone (31) is connected with the outermost end of the longitudinal rod (37), the L-shaped rods (310) are connected with the cross rod (38) and connected with the L-shaped rods (310) and the longitudinal rod (37) in a staggered arrangement state, ear seats (311) are arranged on the outer side end face of the short end of each L-shaped rod (310), four pin shafts are arranged between the upper and lower opposite ear seats (311), plate rolls (312) are arranged on the four pin shafts in a sliding fit mode, and clamping plates (313) are, the outer side end of the clamping plate (313) is connected with the first electric sliding block (314), the first electric sliding block (314) is connected with the long end of the L-shaped rod (310) in a sliding fit mode, and the first electric sliding block (314) is perpendicular to the ear seat (311).

6. The safety protection system for the power distribution network transformer of claim 5, wherein: the end face of the inner side of the long end of the L-shaped rod (310) is provided with a second electric sliding block (31a) in a sliding fit mode, a vertical plate (31b) is connected between the end faces of the second electric sliding blocks (31a) which are opposite vertically, hook brushes (31c) are installed on the end face of the inner side of the vertical plate (31b) at equal intervals from top to bottom, and the end face of the inner side of each hook brush (31c) is connected with the telescopic frame (370) in a sliding fit mode.

7. The safety protection system for the power distribution network transformer of claim 1, wherein: the middle part of riser (35) upper end horizontal pole (38) all install the looks isostructure with the middle part of riser (35) upper end vertical pole (37), wherein the mid-mounting of riser (35) upper end horizontal pole (38) has connecting plate (350), cylinder (351) are installed to the outside terminal surface lower extreme of connecting plate (350), fan leaf (352) are installed through the sliding fit mode to the outside end of cylinder (351), fan leaf (352) are located the top of riser (35) lower extreme horizontal pole (38).

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