A single-phase pole-mounted transformer

Abstract

The invention discloses a single-phase pole-mounted transformer, which specifically relates to the technical field of transformers, and comprises a transformer main body, a fixing frame and an adjusting mechanism. The fixing frame is arranged on the transformer main body, and the fixing frame comprises a secondary fixing part. The secondary fixing part can initially fix the transformer main body when the transformer main body is hoisted. The adjusting mechanism is arranged inside the fixing frame, and the adjusting mechanism can buffer the force generated by the vibration of the transformer main body. The adjusting mechanism comprises an elastic gasket arranged inside the secondary fixing part, and the elastic gasket can enable the fixing bolt to continuously clamp the secondary fixing part. The invention performs preliminary fixation of the transformer through the cooperation between the main fixing part and the secondary fixing part, prevents the transformer from shaking in the air during the hoisting process, causing inconvenience in installation and causing potential safety hazards, and buffers the vibration of the transformer through the adjusting ring, and at the same time decomposes the lateral force on the bolt, thereby preventing the bolt from loosening due to vibration of the transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and more particularly to a single-phase pole-mounted transformer. Background Art

[0002] A single-phase pole-mounted transformer, also known as a single-phase power isolation transformer, is a transformer with high-voltage windings and low-voltage windings deployed separately. Its low-voltage winding and high-voltage winding are relatively independent, which is safer and eliminates the potential dangers caused by wiring cabinets. The single-phase pole-mounted transformer is relatively light in weight and is generally installed on a single pole.

[0003] However, in the prior art, when installing a single-phase pole-mounted transformer, a cross arm is usually installed on a pole or a column, and then the transformer is lifted by a pulley or a crane and finally fixed with bolts on the cross arm. Since the transformer shakes when lifted, it is inconvenient to fix the bolts. After installation, since the transformer vibrates under operation or external force, the fastening bolts are easily loosened, causing the transformer to tilt or fall, causing safety hazards. Therefore, the present invention proposes a single-phase pole-mounted transformer to solve the above problems. Summary of the invention

[0004] In order to overcome the above defects of the prior art, an embodiment of the present invention provides a single-phase pole-mounted transformer, which solves the problems raised in the above background technology by providing a fixing frame and an adjustment mechanism.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A single-phase pole-mounted transformer, comprising: a transformer body, a fixing frame and an adjustment mechanism, wherein the fixing frame comprises a secondary fixing member, and the secondary fixing member can initially fix the transformer body when the transformer body is hoisted; the adjustment mechanism is arranged inside the fixing frame, and the adjustment mechanism can buffer the force generated when the transformer body vibrates, and the adjustment mechanism comprises an elastic gasket arranged inside the secondary fixing member, and the elastic gasket can enable the fixing bolt to continuously clamp the secondary fixing member; the fixing frame comprises a main fixing member fixedly connected to the transformer body, a connecting plate is fixedly connected inside the main fixing member, a first sliding groove is provided inside the connecting plate, a first fixing block is slidably connected inside the first sliding groove, a side wall of the first fixing block is fixedly connected to a first connecting rod, and one end of the first connecting rod away from the first fixing block is fixedly connected to a first connecting column, a first elastic member is arranged inside the main fixing member, one end of the first elastic member is fixedly connected to the side wall of the first connecting column, and the other end of the first elastic member is fixedly connected to the side wall of the connecting plate.

[0006] Preferably, a second sliding groove is formed on the side wall of the auxiliary fixing member, a second fixing block is slidably connected inside the second sliding groove, a second connecting rod is fixedly connected to the side wall of the second fixing block, an end of the second connecting rod away from the second fixing block is fixedly connected to the second connecting column, a second elastic member is arranged inside the auxiliary fixing member, one end of the second elastic member is fixedly connected to the side wall of the second connecting column, and the other end of the second elastic member is fixedly connected to the side wall of the auxiliary fixing member.

[0007] Preferably, the adjustment mechanism includes an air cylinder fixedly connected to the inner wall of the main fixing part away from the transformer body, a piston is slidably connected to the inside of the air cylinder, one end of the piston is fixedly connected to a piston rod, and an adjustment ring is fixedly connected to the end of the piston rod away from the piston, a third elastic part is arranged inside the air cylinder, one end of the third elastic part is fixedly connected to the end of the piston away from the piston rod, and the other end of the third elastic part is fixedly connected to the inner wall of the air cylinder.

[0008] Preferably, an annular groove is provided on the inner wall of the auxiliary fixing part, and the elastic gasket includes a support gasket and a pressure gasket which are slidably connected to the inner wall of the annular groove, and a plurality of fourth elastic parts are arranged between the support gasket and the pressure gasket, and one end of each of the fourth elastic parts is fixedly connected to one end of the support gasket close to the pressure gasket, and the other end of each of the fourth elastic parts is fixedly connected to one end of the pressure gasket close to the support gasket.

[0009] Preferably, there are multiple air cylinders and they are respectively arranged on both sides of the main fixing member, and the inner wall of each of the air cylinders is provided with a first ventilation hole, and each of the first ventilation holes is interconnected.

[0010] Preferably, a sealing groove is provided at the top of the main fixing member, and a sealing plate is slidably connected to the inner wall of the sealing groove. An elastic part is provided in the sealing groove, one end of the elastic part is fixedly connected to the inner wall of the sealing groove, and the other end of the elastic part is fixedly connected to one end of the sealing plate.

[0011] Preferably, a second ventilation hole is opened on the top of the main fixing member, the second ventilation hole is connected with each of the first ventilation holes, and the second ventilation hole is connected with the sealing groove.

[0012] Preferably, a third vent hole is provided in the secondary fixing member, the third vent hole is communicated with the annular groove, and an exhaust hole of the third vent hole is located at an end of the pressure gasket away from the support gasket.

[0013] Preferably, a plurality of symmetrically distributed adjustment grooves are formed on an outer wall of the main fixing member at one end away from the transformer body, and each of the adjustment grooves corresponds to the adjustment ring.

[0014] Preferably, there are multiple fixing frames, which are axially arranged in parallel on the side wall of the transformer body.

[0015] Technical effects and advantages of the present invention:

[0016] 1. When the transformer is hoisted, the main fixing member and the auxiliary fixing member cooperate with each other to preliminarily fix the transformer, thereby preventing the transformer from shaking in the air during the hoisting process, causing inconvenience in installation and potential safety hazards.

[0017] 2. The present invention performs preliminary fixing on the transformer, thereby preventing the problem of inconvenient positioning of the mounting holes between the transformer and the cross arm due to shaking of the transformer during the hoisting process, thereby causing the transformer to be installed tilted.

[0018] 3. The present invention uses elastic gaskets to enable the fixing bolts to continuously clamp the auxiliary fixing parts, and uses an adjusting ring to buffer the vibration of the transformer, while decomposing the lateral force on the bolts to prevent the problem of bolt loosening due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 Schematic diagram of the internal structure of the fixing frame of the present invention.

[0021] Figure 3 It is a cross-sectional view of the overall structure of the fixing frame of the present invention.

[0022] Figure 4 It is an exploded view of the overall structure of the fixing frame of the present invention.

[0023] Figure 5 It is a cross-sectional view of the overall structure of the auxiliary fixing member of the present invention.

[0024] Figure 6 It is a cross-sectional schematic diagram of the fixing frame of the present invention at the adjusting mechanism.

[0025] Figure 7 It is a cross-sectional schematic diagram of the fixing frame of the present invention at the inner wall of the auxiliary fixing member.

[0026] Figure 8 It is a cross-sectional schematic diagram of the main fixing member and the auxiliary fixing member of the present invention in a separated state.

[0027] The accompanying drawings are marked as follows: 1. transformer body; 2. fixing frame; 21. auxiliary fixing member; 211. second elastic member; 212. annular groove; 213. third vent; 22. main fixing member; 221. first elastic member; 222. second vent; 223. adjusting groove; 23. connecting plate; 24. first slide groove; 25. first fixing block; 251. first connecting rod; 252. first connecting column; 26. second slide groove; 27. second fixing block; 271. second connecting rod; 272. second connecting column; 3. adjusting mechanism; 31. air cylinder; 311. first vent; 32. piston; 33. piston rod; 34. adjusting ring; 35. third elastic member; 36. elastic gasket; 361. support gasket; 362. pressure gasket; 363. fourth elastic member; 37. sealing plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In actual use, when the transformer is hoisted, the transformer will shake in the air, which makes installation inconvenient. This embodiment is specially invented to solve the above problem.

[0030] See also Figure 1 and Figure 2 As shown, a single-phase pole-mounted transformer according to an embodiment of the present invention comprises a transformer body 1, a fixing frame 2 and an adjustment mechanism 3. The fixing frame 2 is arranged on the transformer body 1. The fixing frame 2 comprises an auxiliary fixing member 21. The auxiliary fixing member 21 can perform initial fixing on the transformer body 1 when the transformer body 1 is hoisted. There are multiple fixing frames 2 and they are arranged on the side wall of the transformer body 1 in parallel along the axial direction.

[0031] See also Figure 3 and Figure 4As shown, the fixing frame 2 includes a main fixing member 22 fixedly connected to the transformer body 1, a connecting plate 23 is fixedly connected inside the main fixing member 22, a first slide groove 24 is provided inside the connecting plate 23, a first fixing block 25 is slidably connected inside the first slide groove 24, a first connecting rod 251 is fixedly connected to the side wall of the first fixing block 25, an end of the first connecting rod 251 away from the first fixing block 25 is fixedly connected to the first connecting column 252, a first elastic member 221 is arranged inside the main fixing member 22, one end of the first elastic member 221 is fixedly connected to the side wall of the first connecting column 252, and the other end of the first elastic member 221 is fixedly connected to the side wall of the connecting plate 23, a plurality of symmetrically distributed adjustment grooves 223 for fixing bolts are provided on the outer wall of the main fixing member 22 away from the transformer body 1, wherein the first elastic member 221 is a spring.

[0032] See also Figure 5 As shown, a second slide groove 26 is provided on the side wall of the auxiliary fixing member 21, a second fixing block 27 is slidably connected inside the second slide groove 26, a second connecting rod 271 is fixedly connected to the side wall of the second fixing block 27, an end of the second connecting rod 271 away from the second fixing block 27 is fixedly connected to the second connecting column 272, a second elastic member 211 is provided inside the auxiliary fixing member 21, one end of the second elastic member 211 is fixedly connected to the side wall of the second connecting column 272, and the other end of the second elastic member 211 is fixedly connected to the side wall of the auxiliary fixing member 21, and the second connecting rod 271 is fixedly connected to the side wall of the auxiliary fixing member 21. Figure 8 As shown, the auxiliary fixing member 21 is detachably connected to the main fixing member 22 , and a through hole for fixing bolts is provided on the side wall of the auxiliary fixing member 21 away from the second fixing block 27 , wherein the second elastic member 211 is a spring.

[0033] When in use, first press the second connecting column 272 inside the auxiliary fixing part 21, and rotate the second connecting column 272 to make the second connecting rod 271 drive the second fixing block 27 to rotate inside the second slide groove 26, and the rotation of the second fixing block 27 drives the first fixing block 25 to rotate. When the cross-section of the second fixing block 27 and the first fixing block 25 is parallel to the connecting plate 23, the auxiliary fixing part 21 is removed, and the auxiliary fixing part 21 is fixed to the cross arm on which the transformer body 1 is installed by bolts, and then the cross arm and the auxiliary fixing part 21 are installed at the designated position on the pole, and finally the transformer body 1 is lifted. When the main fixing member 22 can engage with the auxiliary fixing member 21, the transformer body 1 is lowered. At this time, due to the gravity of the transformer body 1, the second fixing block 27 and the first fixing block 25 rotate relative to each other, and the auxiliary fixing member 21 is embedded in the main fixing member 22 to preliminarily fix and support the transformer body 1. At the same time, the adjustment groove 223 on the main fixing member 22 corresponds to the mounting hole on the cross arm, thereby preventing the transformer from shaking in the air during the hoisting process, causing inconvenient installation and causing safety hazards, and preventing the transformer from shaking during the hoisting process, causing inconvenient positioning of the mounting holes between the transformer and the cross arm, thereby causing the transformer to be installed tilted.

[0034] In actual use, it is found that after the transformer is installed, the fastening bolts are easily loosened due to the vibration of the transformer during operation or under the action of external forces, causing the transformer to tilt or fall. Further improvements are made on the basis of the above embodiments.

[0035] See also Figure 2 and Figure 6 As shown, the adjustment mechanism 3 includes an air cylinder 31 fixedly connected to the inner wall of the main fixing member 22 away from the transformer body 1, combined with Figure 7 As shown, the inside of the gas cylinder 31 is slidably connected to the piston 32, one end of the piston 32 is fixedly connected to the piston rod 33, the end of the piston rod 33 away from the piston 32 is fixedly connected to the adjusting ring 34, the adjusting grooves 223 are arranged obliquely along the center line and correspond to the adjusting ring 34, and the inside of the gas cylinder 31 is provided with a third elastic member 35, one end of the third elastic member 35 is fixedly connected to the end of the piston 32 away from the piston rod 33, and the other end of the third elastic member 35 is fixedly connected to the inner wall of the gas cylinder 31, wherein the third elastic member 35 is a spring.

[0036] See also Figure 4 and Figure 5As shown, an annular groove 212 is provided on the inner wall of the auxiliary fixing member 21, and the elastic gasket 36 includes a support gasket 361 and a pressure gasket 362 which are slidably connected to the inner wall of the annular groove 212, and a plurality of fourth elastic members 363 are arranged between the support gasket 361 and the pressure gasket 362, and one end of each fourth elastic member 363 is fixedly connected to one end of the support gasket 361 close to the pressure gasket 362, and the other end of each fourth elastic member 363 is fixedly connected to one end of the pressure gasket 362 close to the support gasket 361, wherein the fourth elastic member 363 is a spring.

[0037] See also Figure 6 As shown, there are multiple air cylinders 31 and they are respectively arranged on both sides of the main fixing member 22. The inner wall of each air cylinder 31 is provided with a first vent hole 311. Figure 7 As shown, a sealing groove is provided at the top of the main fixing member 22, and a sealing plate 37 is slidably connected to the inner wall of the sealing groove. An elastic part is provided in the sealing groove, one end of the elastic part is fixedly connected to the inner wall of the sealing groove, and the other end of the elastic part is fixedly connected to one end of the sealing plate 37. A second ventilation hole 222 is provided at the top of the main fixing member 22, and the second ventilation hole 222 is connected to each first ventilation hole 311, and the second ventilation hole 222 is connected to the sealing groove, and each first ventilation hole 311 is connected to each other.

[0038] See also Figure 5 As shown, a third vent hole 213 is defined in the auxiliary fixing member 21 , the third vent hole 213 is communicated with the annular groove 212 , and an exhaust hole of the third vent hole 213 is located at one end of the pressure gasket 362 away from the support gasket 361 .

[0039] On the basis of the above embodiment, when the transformer body 1 is initially fixed to the auxiliary fixing member 21 through the main fixing member 22, during the process of the auxiliary fixing member 21 engaging with the main fixing member 22, the auxiliary fixing member 21 can compress the gas on the upper part of the main fixing member 22, and enter the annular groove 212 through the third vent hole 213 to squeeze the pressure gasket 362. The pressure gasket 362 is squeezed, so that the fourth elastic member 363 is compressed to store the pressure. When the auxiliary fixing member 21 contacts the sealing plate 37, the sealing plate 37 is pushed by the auxiliary fixing member 21 so that the elastic part is compressed, so that the gas inside the sealing groove is squeezed and enters the gas cylinder 31 through the second vent hole 222 and the first vent hole 311, so that the gas inside the gas cylinder 31 is further compressed. When the transformer body 1 vibrates, the gas inside the gas cylinder 31 is further compressed through the adjusting ring 34. The piston rod 33 is driven to move, so that the piston 32 slides in the direction of the adjustment groove 223 inside the air cylinder 31, so that the lateral force generated by the vibration is decomposed, and at the same time the third elastic member 35 is compressed. The reaction force of the third elastic member 35 on the piston 32 buffers the force generated by the vibration of the transformer body 1. When the multiple adjustment rings 34 are subjected to uneven force due to vibration, the piston 32 on the side with greater force slides with a greater displacement inside the air cylinder 31, and the compressed gas inside the air cylinder 31 is squeezed into the air cylinder 31 on the side with less force through the first air vent 311 and the second air vent 222, thereby increasing the pressure inside the air cylinder 31 on the side with less force, and the reaction force inside the air cylinder 31 on the side with greater force is greater, so that the adjustment ring 34 further buffers the vibration of the transformer body 1. When the bolts of the auxiliary fixing member 21 are loosened due to vibration, the fourth elastic member 363 relaxes to allow the support gasket 361 to slide outward and re-tighten the bolts, so that the bolts continue to clamp the auxiliary fixing member 21, thereby preventing the fastening bolts from loosening due to vibration generated by the transformer under operation and external force after the transformer is installed, thereby preventing the transformer from tilting or falling.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single-phase pole-mounted transformer, comprising a transformer body (1), characterized in that: Also includes: A fixing frame (2), the fixing frame (2) comprising a secondary fixing member (21), the secondary fixing member (21) being capable of initially fixing the transformer body (1) when the transformer body (1) is hoisted; an adjusting mechanism (3), the adjusting mechanism (3) being arranged inside the fixing frame (2), the adjusting mechanism (3) being capable of buffering a force generated when the transformer body (1) vibrates, the adjusting mechanism (3) comprising an elastic gasket (36) arranged inside the auxiliary fixing member (21), the elastic gasket (36) being capable of enabling the fixing bolt to continuously clamp the auxiliary fixing member (21); The fixing frame (2) comprises a main fixing member (22) fixedly connected to the side wall of the transformer body (1); a connecting plate (23) is fixedly connected inside the main fixing member (22); a first sliding groove (24) is provided inside the connecting plate (23); a first fixing block (25) is slidably connected inside the first sliding groove (24); a first connecting rod (251) is fixedly connected to the side wall of the first fixing block (25); an end of the first connecting rod (251) away from the first fixing block (25) is fixedly connected to a first connecting column (252); a first elastic member (221) is provided inside the main fixing member (22); one end of the first elastic member (221) is fixedly connected to the side wall of the first connecting column (252); and the other end of the first elastic member (221) is fixedly connected to the side wall of the connecting plate (23); A second sliding groove (26) is provided on the side wall of the secondary fixing member (21); a second fixing block (27) is slidably connected inside the second sliding groove (26); a second connecting rod (271) is fixedly connected to the side wall of the second fixing block (27); an end of the second connecting rod (271) away from the second fixing block (27) is fixedly connected to a second connecting column (272); a second elastic member (211) is provided inside the secondary fixing member (21); one end of the second elastic member (211) is fixedly connected to the side wall of the second connecting column (272); the other end of the second elastic member (211) is fixedly connected to the side wall of the secondary fixing member (21); the secondary fixing member (21) can be fixedly connected to a cross arm for mounting the transformer body (1) by means of bolts; and the secondary fixing member (21) can be embedded inside the main fixing member (22).

2. The single-phase pole-mounted transformer according to claim 1, characterized in that: The adjustment mechanism (3) comprises an air cylinder (31) fixedly connected to an inner wall of a main fixing member (22) away from a transformer body (1); a piston (32) is slidably connected to the interior of the air cylinder (31); one end of the piston (32) is fixedly connected to a piston rod (33); an end of the piston rod (33) away from the piston (32) is fixedly connected to an adjustment ring (34); a third elastic member (35) is provided inside the air cylinder (31); one end of the third elastic member (35) is fixedly connected to an end of the piston (32) away from the piston rod (33); and the other end of the third elastic member (35) is fixedly connected to the inner wall of the air cylinder (31).

3. The single-phase pole-mounted transformer according to claim 2, characterized in that: An annular groove (212) is formed on the inner wall of the auxiliary fixing member (21); the elastic gasket (36) comprises a support gasket (361) and a pressure gasket (362) which are slidably connected to the inner wall of the annular groove (212); a plurality of fourth elastic members (363) are arranged between the support gasket (361) and the pressure gasket (362); one end of each of the fourth elastic members (363) is fixedly connected to one end of the support gasket (361) close to the pressure gasket (362); and the other end of each of the fourth elastic members (363) is fixedly connected to one end of the pressure gasket (362) close to the support gasket (361).

4. The single-phase pole-mounted transformer according to claim 3, characterized in that: There are a plurality of gas cylinders (31) which are respectively arranged on both sides of the main fixing member (22); the inner wall of each gas cylinder (31) is provided with a first ventilation hole (311); and each of the first ventilation holes (311) is interconnected.

5. The single-phase pole-mounted transformer according to claim 4, characterized in that: A sealing groove is provided at the top of the main fixing member (22), a sealing plate (37) is slidably connected to the inner wall of the sealing groove, an elastic portion is provided in the sealing groove, one end of the elastic portion is fixedly connected to the inner wall of the sealing groove, and the other end of the elastic portion is fixedly connected to one end of the sealing plate (37).

6. The single-phase pole-mounted transformer according to claim 5, characterized in that: A second vent hole (222) is provided at the top of the main fixing member (22), the second vent hole (222) is connected to each of the first vent holes (311), and the second vent hole (222) is connected to the sealing groove.

7. The single-phase pole-mounted transformer according to claim 6, characterized in that: A third vent hole (213) is provided in the auxiliary fixing member (21), the third vent hole (213) is connected to the annular groove (212), and an exhaust hole of the third vent hole (213) is located at an end of the pressure gasket (362) away from the support gasket (361).

8. The single-phase pole-mounted transformer according to claim 7, characterized in that: The outer wall of the main fixing member (22) at one end away from the transformer body (1) is provided with a plurality of adjustment grooves (223) distributed in a mirror image, and each of the adjustment grooves (223) corresponds to the adjustment ring (34).

9. The single-phase pole-mounted transformer according to claim 8, characterized in that: The fixing frames (2) are multiple in number and are arranged in parallel along the axial direction on the side wall of the transformer body (1).

Images