Transformer conducting rod with lightning protection function

Abstract

The utility model relates to the technical field of conducting rods, in particular to a transformer conducting rod with a lightning protection function, which comprises a guide rod mounted on a transformer through a mounting assembly, the mounting assembly comprises a mounting seat sleeved at the bottom of the guide rod, an insulating shell covers the upper end part of the guide rod, a placement cavity is arranged in the insulating shell, and a lightning protection cover is arranged in the placement cavity. A wiring block which is connected with the upper end of the guide rod and extends out is arranged in the placing cavity, a porcelain kettle sleeves the guide rod between the insulating shell and the mounting seat, a mounting cavity for the guide rod to penetrate through is formed in the upper end surface of the mounting seat, a fixing assembly for connecting a transformer is arranged in the mounting seat, and a mounting assembly for connecting the guide rod is further arranged in the mounting seat. Through the arrangement of the fixing assembly, the mounting base can be better disassembled and assembled on the transformer, namely the conducting rod can be disassembled and assembled on the transformer, compared with the prior art, a plurality of bolts do not need to be disassembled and assembled, and more convenience is achieved.

Description

Technical Field

[0001] This utility model relates to the field of transformer conductive rod technology, and more specifically, to a transformer conductive rod with lightning protection function. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main functions include voltage transformation and current transformation. A transformer is composed of multiple components, and the conductive rod is one of them. The conductive rod is installed on the top of the transformer and is used to connect the transformer coil leads to the external line.

[0003] For example, patent CN211788559U discloses a conductive rod comprising, from top to bottom, a terminal block, a rod body, and a mounting base connected sequentially. The mounting base is connected to a transformer. A clamp is welded to the bottom of the terminal block, and the top of the rod body passes through the clamp, which is locked in place by bolts. Several receiving grooves are formed on the inner wall of the clamp, with the openings of the grooves facing the rod body. A first spring and a support block are provided within each groove. The first spring is located between the support block and the bottom of the groove, supporting the support block against the rod body. Both the first spring and the support block are conductive. Although this conductive rod features reliable connection and stable conductivity, the mounting base is typically detachably connected to the transformer using bolts. When the conductive rod needs maintenance or replacement, multiple bolts need to be removed and installed, which is inconvenient and requires improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a transformer conductive rod with lightning protection function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A transformer conductive rod with lightning protection function includes a guide rod that is mounted on a transformer via a mounting assembly. The mounting assembly includes a mounting base sleeved on the bottom of the guide rod, an insulating shell covering the upper end of the guide rod, a placement cavity inside the insulating shell, a terminal block that is connected to and extends from the upper end of the guide rod inside the placement cavity, a porcelain pot sleeved on the guide rod located between the insulating shell and the mounting base, a mounting cavity for the guide rod to pass through at the upper end face of the mounting base, a fixing assembly for connecting the transformer inside the mounting base, and a mounting assembly for connecting the guide rod inside the mounting base.

[0007] Preferably, the upper end face of the transformer is provided with a mounting groove for the mounting base to extend into, and the side wall of the mounting groove is provided with a slot, and the slot is provided with a fixing hole; the outer side wall of the mounting base is provided with a locking block that slides in the slot, the mounting base is provided with a fixing cavity, and the fixing assembly includes a fixing rod that can be slidably disposed in the fixing cavity and can be extended into the fixing hole, the fixing rod extending into the corresponding fixing hole for fixing the mounting base.

[0008] Preferably, the fixing cavity is opened on the side near the fixing hole, the fixing rod is placed in the fixing cavity by a spring, the upper side of the mounting base is provided with a sliding groove along the axial direction of the fixing cavity to communicate with the fixing cavity, and the fixing rod is provided with an operating rod that slides in the sliding groove.

[0009] Preferably, the upper end of the mounting base extends upward to form a boss, and a first rotating ring is fitted over the boss. The first rotating ring has opposing claws, one side of which abuts against the operating lever. The rotation of the first rotating ring drives the opposing operating levers to move synchronously.

[0010] Preferably, the guide rod has mounting holes on its outer side wall and an annular groove on its bottom wall. The mounting assembly includes mounting blocks that are radially opposite each other in the annular groove. The mounting blocks have positioning blocks that penetrate the mounting base and extend into the mounting cavity. The mounting blocks have a first inclined surface. A second rotating ring is threaded into the annular groove. The second rotating ring has a second inclined surface corresponding to the first inclined surface. The second rotating ring is screwed into the annular groove to drive the second inclined surface to press against the first inclined surface and push the positioning block into the mounting hole.

[0011] Preferably, a guide rod is provided inside the annular groove to pass through the corresponding mounting block, and a movable cavity is provided on the inner side wall of the annular groove for the positioning block to extend out, and an elastic piece is provided inside the movable cavity for driving the mounting block to reset.

[0012] Preferably, the lower end face of the second rotating ring is provided with a plurality of gripping grooves along its circumference.

[0013] Preferably, the inner wall of the boss is provided with a first positioning groove, the inner wall of the mounting cavity is provided with a second positioning groove, and the outer wall of the guide rod is provided with a positioning plate that can extend into the corresponding first positioning groove and second positioning groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the setting of the fixing components, better realizes the installation and removal of the mounting base on the transformer, that is, realizes the installation and removal of the transformer conductive rod on the transformer. Compared with the existing ones, it does not require the removal and installation of multiple bolts, which is more convenient.

[0016] 2. This utility model, through the setting of the insulating shell, enables the top of the conductor rod to be covered, preventing the top of the conductor rod from being exposed to the outside world and generating a point discharge phenomenon. This prevents the conductor rod from being accidentally struck by lightning during thunderstorms, causing damage to the transformer. Thus, the transformer conductor rod has a lightning protection function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a transformer conductive rod with lightning protection function according to this utility model.

[0018] Figure 2 This is an exploded view of the transformer, conductor rod, and insulating shell in this utility model.

[0019] Figure 3 This is an exploded view of the guide rod, ceramic pot, insulating shell, and wiring block in this utility model.

[0020] Figure 4 This is a schematic diagram of the guide rod in this utility model.

[0021] Figure 5 This is an exploded view of the mounting base, the boss portion, and the first rotating ring in this utility model.

[0022] Figure 6 This is an exploded view of the mounting base and the second rotating ring in this utility model.

[0023] Figure 7 This is an exploded view of the mounting base and the second rotating ring in this utility model from another perspective.

[0024] Figure 8 This is a cross-sectional schematic diagram of the mounting base in this utility model.

[0025] Figure 9 This is a cross-sectional view of the mounting base in this utility model from another perspective.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 100. Transformer; 110. Porcelain kettle; 111. Terminal block; 120. Insulating shell;

[0028] 210. Mounting slot; 211. Slot; 212. Fixing hole; 220. Guide rod; 230. Mounting base;

[0029] 330. Nuts;

[0030] 400. Placement cavity;

[0031] 500. Mounting hole; 510. Positioning plate;

[0032] 600, Slide groove; 601, Operating lever; 610, Boss; 611, First positioning groove; 620, Mounting cavity; 621, Second positioning groove; 630, First rotating ring; 631, Claw; 640, Fixing rod; 650, Locking block;

[0033] 700, Annular groove; 710, Mounting block; 711, Guide rod; 712, First inclined surface; 713, Positioning block; 720, Second rotating ring; 721, Grip groove;

[0034] 800. Second slope;

[0035] 900, Fixed cavity; 911, Spring. Detailed Implementation

[0036] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0037] The following is in conjunction with the appendix Figures 1-9 This embodiment will be described in further detail.

[0038] Please see Figures 1-6 This embodiment of a transformer conductive rod with lightning protection function includes a guide rod 220 mounted on a transformer 100 via a mounting assembly. The mounting assembly includes a mounting base 230 sleeved at the bottom of the guide rod 220. An insulating shell 120 is provided at the upper end of the guide rod 220. A placement cavity 400 is provided inside the insulating shell 120. A terminal block 111 that is connected to and extends from the upper end of the guide rod 220 is provided inside the placement cavity 400. A porcelain pot 110 is sleeved on the guide rod 220 located between the insulating shell 120 and the mounting base 230. A mounting cavity 620 for the guide rod 220 to pass through is provided at the upper end face of the mounting base 230. A fixing assembly for connecting the transformer 100 is provided inside the mounting base 230. An mounting assembly for connecting the guide rod 220 is provided inside the mounting base 230.

[0039] In this embodiment, the lower end of the guide rod 220 extends into the transformer 100 and is connected to the coil lead of the transformer 100. The upper end of the guide rod 220 is connected to the external line through the terminal block 111. Thus, the transformer guide rod conducts current. This is the existing structure.

[0040] Among them, such as Figure 3As shown, the top of the guide rod 220 extends into the placement cavity 400. The terminal block 111 is fixedly installed on the guide rod 220 located in the placement cavity 400 by a conductive clamp, thereby realizing the connection between the terminal block 111 and the guide rod 220. At the same time, the insulating shell 120 is fixedly installed at the upper end of the guide rod 220, so that the insulating shell 120 can cover the top of the guide rod 220, preventing the top of the guide rod 220 from being exposed to the outside world and generating a point discharge phenomenon. In case of thunderstorms, the guide rod 220 is easily struck by lightning, causing damage to the transformer 100. Thus, the transformer conductive rod has a lightning protection function.

[0041] Among them, the ceramic pot 110 is made of ceramic material and has insulation properties. Multiple ceramic pots 110 are provided. Multiple ceramic pots 110 are fixed on the guide rod 220 between the mounting base 230 and the insulating shell 120 by screwing the nut 330 into the guide rod 220. This can prevent short circuits from occurring between adjacent guide rods 220 when conducting current.

[0042] The mounting bracket 230 is preferably mounted and dismounted on the transformer 100 by setting up the fixing components; the guide rod 220 is preferably mounted and dismounted on the mounting bracket 230 by setting up the mounting components.

[0043] Specifically, in this embodiment, the mounting base 230, the fixing component, and the mounting component are all made of insulating material.

[0044] like Figure 1-9 As shown, in this embodiment, the upper end face of the transformer 100 is provided with a mounting groove 210 into which the mounting base 230 extends. The side wall of the mounting groove 210 is provided with a slot 211 opposite to each other, and the slot 211 is provided with a fixing hole 212. The outer side wall of the mounting base 230 is provided with a locking block 650 that slides in the slot 211. The mounting base 230 is provided with a fixing cavity 900. The fixing assembly includes a fixing rod 640 that can be slidably disposed in the fixing cavity 900 and can be extended into the fixing hole 212. The fixing rod 640 extends into the corresponding fixing hole 212 to fix the mounting base 230.

[0045] In practical use, the arrangement of the slot 211 and the block 650 in this embodiment allows the block 650 and the slot 211 to be aligned when the guide rod 220 is installed on the transformer 100. When the mounting base 230 is installed in the mounting groove 210, the fixing rod 640 and the fixing hole 212 can be aligned so that the fixing rod 640 can extend into the fixing hole 212, thereby fixing the mounting base 230 in the mounting groove 210. When the fixing rod 640 retracts and disengages from the fixing hole 212, the fixing of the mounting base 230 can be released, allowing the mounting base 230 to be disassembled in the mounting groove 210.

[0046] like Figure 5-9As shown, in this embodiment, the fixing cavity 900 is opened on the side near the fixing hole 212, the fixing rod 640 is installed in the fixing cavity 900 by the spring 911, the upper side of the mounting base 230 is provided with a sliding groove 600 communicating with the fixing cavity 900 along the axial direction of the fixing cavity 900, and the fixing rod 640 is provided with an operating rod 601 that slides in the sliding groove 600.

[0047] In this embodiment, the spring 911 is used to push the fixing rod 640 to move outward toward the fixing cavity 900, so that when it extends into the fixing hole 212, the mounting base 230 is fixed in the mounting groove 210. At this time, the operating rod 601 slides to the outer end of the slide groove 600. When it is necessary to release the fixing of the mounting base 230 in the mounting groove 210, the operating rod 601 is moved along the slide groove 600, thereby driving the fixing rod 640 to retract into the fixing cavity 900, so that the fixing rod 640 is disengaged from the fixing hole 212. The shape of the fixing rod 640 is adapted to the shape of the fixing cavity 900. The spring 911 is installed in the fixing cavity 900 to smoothly push the fixing rod 640 to move.

[0048] The operating lever 601 is threaded through the corresponding slide groove 600 and connected to the fixing rod 640 so that the fixing component can be installed.

[0049] The mounting holes 212 and the mounting rods 640 are both provided in twos. Through the above structure, the mounting base 230 can be subjected to force on both sides when it is installed in the mounting groove 210, making its installation more stable.

[0050] like Figure 2-6 As shown, in this embodiment, the upper end of the mounting base 230 extends upward to form a boss 610. The boss 610 is fitted with a rotatable first rotating ring 630. The first rotating ring 630 is provided with opposite hooks 631. One side of the hooks 631 abuts against the corresponding operating lever 601. The rotation of the first rotating ring 630 is used to drive the oppositely arranged operating lever 601 to move synchronously.

[0051] In this embodiment, the first rotating ring 630 is sleeved on the outside of the boss portion 610 via a bearing, thereby enabling the first rotating ring 630 to be rotatably mounted on the boss portion 610. When the first rotating ring 630 rotates, it can drive the hook 631 to rotate synchronously. The hook 631 presses the corresponding operating rod 601 to move along the slide groove 600, causing the fixing rods 640 to move closer to each other and disengage from the corresponding fixing hole 212. There are two hooks 631. With this structure, rotating the first rotating ring 630 once can make the two operating rods 601 move synchronously, making the disassembly and assembly of the mounting base 230 in the mounting groove 210 simple and convenient.

[0052] like Figure 2-8As shown, in this embodiment, the outer side wall of the guide rod 220 is provided with mounting holes 500, and the bottom wall of the mounting base 230 is provided with an annular groove 700. The mounting assembly includes a mounting block 710 radially disposed within the annular groove 700. The mounting block 710 is provided with a positioning block 713 that penetrates the mounting base 230 and extends into the mounting cavity 620. The mounting block 710 is provided with a first inclined surface 712. A second rotating ring 720 is threaded into the annular groove 700. The second rotating ring 720 is provided with a second inclined surface 800 corresponding to the first inclined surface 712. The second rotating ring 720 is screwed into the annular groove 700 to drive the second inclined surface 800 to press the first inclined surface 712 and push the positioning block 713 into the mounting hole 500.

[0053] In this embodiment, by rotating the second rotating ring 720, since the inner wall of the second rotating ring 720 is threadedly connected to the annular groove 700, the second rotating ring 720 will move along the axial direction of the annular groove 700, causing the second inclined surface 800 to move upward. When the second inclined surface 800 moves upward and contacts the first inclined surface 712, the mounting block 710 is squeezed by the second inclined surface 800, causing the mounting block 710 to move towards the mounting hole 500 and extend into the mounting hole 500, thereby completing the connection between the mounting base 230 and the guide rod 220.

[0054] like Figure 7-9 As shown, in this embodiment, a guide rod 711 is provided inside the annular groove 700, which passes through the corresponding mounting block 710. A movable cavity is provided on the inner side wall of the annular groove 700 for the positioning block 713 to extend out. An elastic sheet is provided inside the movable cavity for driving the mounting block 710 to reset.

[0055] In this embodiment, the size of the mounting block 710 is larger than that of the positioning block 713. The opening of the moving cavity is set towards the annular groove 700. The bottom wall of the moving cavity is provided with a hole that can only allow the positioning block 713 to extend out. Thus, the elastic sheet can be installed in the moving cavity so that it can push the mounting block 710 to reset.

[0056] The guide rod 711 restricts the movement of the mounting block 710, allowing it to move only along the axial direction of the guide rod 711. Under the thrust of the elastic plate, when the second inclined surface 800 disengages from the state of pressing the first inclined surface 712, the mounting block 710 extends out of the mounting hole 500 and retracts into the moving cavity. At this time, the connection between the guide rod 220 and the mounting base 230 can be released.

[0057] like Figure 7 As shown, in this embodiment, the lower end face of the second rotating ring 720 is provided with a plurality of gripping grooves 721 along its circumference.

[0058] In this embodiment, the grip groove 721 is provided so that when the second rotating ring 720 is rotated, fingers can be inserted into the grip groove 721, which facilitates the rotation of the second rotating ring 720.

[0059] like Figure 5-6 As shown, in this embodiment, the inner wall of the boss portion 610 is provided with a first positioning groove 611, the inner wall of the mounting cavity 620 is provided with a second positioning groove 621, and the outer wall of the guide rod 220 is provided with a positioning plate 510 that can extend into the corresponding first positioning groove 611 and second positioning groove 621.

[0060] In this embodiment, by setting the first positioning groove 611, the second positioning groove 621 and the positioning plate 510, when connecting the mounting base 230 and the guide rod 220, the positioning plate 510 is aligned with the first positioning groove 611 and the second positioning groove 621, and the guide rod 220 is moved down so that the positioning plate 510 extends into the first positioning groove 611 and the second positioning groove 621. At this time, the mounting hole 500 is aligned with the mounting block 710, which facilitates the connection between the mounting base 230 and the guide rod 220.

[0061] Working principle: When the guide rod 220 needs to be installed on the transformer 100, firstly, the mounting base 230 is placed at the upper end of the mounting groove 210. Then, the positioning plate 510 is aligned with the first positioning groove 611 and the second positioning groove 621, and the first rotating ring 630 is rotated to drive the hook 631 to press the operating rod 601. The operating rod 601 moves along the slide groove 600, causing the fixing rod 640 to retract into the fixing cavity 900. At this time, under the action of gravity, the mounting base 230... The guide rod 220 is lowered into the mounting groove 210. The first rotating ring 630 is released, and under the pushing force of the spring 911, the fixing rod 640 extends into the fixing hole 212, completing the connection between the guide rod 220 and the transformer 100. When the guide rod 220 needs to be repaired, the first rotating ring 630 can be rotated to drive the hook 631 to squeeze the operating rod 601. The operating rod 601 moves along the slide groove 600, causing the fixing rod 640 to retract into the fixing cavity 900. Then the guide rod 220 can be lifted.

[0062] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A lightning protection transformer conducting rod, comprising a conducting rod (220) installed on a transformer (100) through a mounting assembly, characterized in that: The mounting assembly comprises a mounting base (230) sleeved at the bottom of the guide rod (220), an insulating shell (120) sleeved at the upper end of the guide rod (220), a placing cavity (400) arranged in the insulating shell (120), a terminal block (111) arranged in the placing cavity (400) and extending out of the upper end of the guide rod (220), a porcelain pot (110) sleeved on the guide rod (220) between the insulating shell (120) and the mounting base (230), a mounting cavity (620) arranged at the upper end surface of the mounting base (230) and used for allowing the guide rod (220) to pass through, a fixing assembly arranged in the mounting base (230) and used for connecting the transformer (100), and a mounting assembly arranged in the mounting base (230) and used for connecting the guide rod (220).

2. The electrically conductive pole of a transformer with lightning protection function according to claim 1, characterized in that: The upper end surface of the transformer (100) is provided with a mounting groove (210) into which the mounting base (230) extends, opposite clamping grooves (211) are arranged on the side wall of the mounting groove (210), and fixing holes (212) are arranged in the clamping grooves (211); a clamping block (650) is arranged on the outer side wall of the mounting base (230) and slides in the clamping grooves (211), a fixing cavity (900) is arranged in the mounting base (230), and the fixing assembly comprises a fixing rod (640) which is slidably arranged in the fixing cavity (900) and extends into the fixing holes (212) and is used for fixing the mounting base (230).

3. The lightning protection transformer pole according to claim 2, characterized in that: The fixing cavity (900) is open at the side close to the fixing holes (212), the fixing rod (640) is arranged in the fixing cavity (900) by a spring (911), and the upper side surface of the mounting base (230) is axially provided with a sliding groove (600) which communicates with the fixing cavity (900), and the fixing rod (640) is provided with an operating rod (601) which slides in the sliding groove (600).

4. The lightning protection transformer pole according to claim 3, characterized in that: The upper end surface of the mounting base (230) extends upward to form a boss portion (610), the boss portion (610) is sleeved with a first rotating ring (630), opposite hook claws (631) are arranged on the first rotating ring (630), one side of the hook claws (631) abuts against the corresponding operating rod (601), and the first rotating ring (630) rotates to drive the opposite operating rods (601) to move synchronously.

5. The electrically conductive pole of a transformer with lightning protection function according to claim 1, characterized in that: Opposite mounting holes (500) are arranged on the outer side wall of the guide rod (220), and an annular groove (700) is arranged on the bottom wall of the mounting base (230); the mounting assembly comprises a mounting block (710) which is oppositely arranged in the annular groove (700) along the radial direction of the annular groove (700), the mounting block (710) is provided with a positioning block (713) which penetrates through the mounting base (230) and extends into the mounting cavity (620), the mounting block (710) is provided with a first inclined surface (712), a second rotating ring (720) is threadedly connected in the annular groove (700), the second rotating ring (720) is provided with a second inclined surface (800) corresponding to the first inclined surface (712), and the second rotating ring (720) is screwed into the annular groove (700) to drive the second inclined surface (800) to press the first inclined surface (712) and push the positioning block (713) to extend into the mounting hole (500).

6. The lightning protection transformer pole according to claim 5, characterized in that: Opposite the annular groove (700) is provided with a guide rod (711) penetrating through the corresponding mounting block (710), and the inner side wall of the annular groove (700) is provided with a moving cavity for the positioning block (713) to extend out, and the moving cavity is provided with an elastic sheet for driving the mounting block (710) to reset.

7. The lightning protection transformer pole according to claim 6, characterized in that: A plurality of holding grooves (721) are arranged on the lower end surface of the second rotating ring (720) along the circumference thereof.

8. The lightning protection transformer pole according to claim 4, characterized in that: The inner wall of the boss portion (610) is provided with a first positioning groove (611) in opposition, the inner wall of the mounting cavity (620) is provided with a second positioning groove (621) in opposition, and the outer wall of the guide rod (220) is provided with a positioning plate (510) which can extend into the corresponding first positioning groove (611) and second positioning groove (621).

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