Oil leakage monitoring mechanism for conducting rod

Abstract

The utility model relates to the technical field of transformers, in particular to an oil leakage monitoring mechanism for a conducting rod, which comprises a connecting pipe and a liquid storage cylinder, the liquid storage cylinder is in threaded connection with the lower end of the connecting pipe, the connecting pipe is sleeved outside the conducting rod, and the lower end of the conducting rod penetrates through the liquid storage cylinder. A quick connecting assembly is arranged at the upper end of the connecting pipe, the quick connecting assembly is used for quickly installing the connecting pipe on a connecting part at the upper end of the conducting rod, scraping plates are arranged on the two sides of the interior of the liquid storage cylinder, one end of each scraping plate is attached to the inner wall of the liquid storage cylinder, and a driving assembly is arranged on one side of the upper end of the liquid storage cylinder; and the driving assembly is used for driving the two scraping plates to rotate around the axis of the liquid storage cylinder in the liquid storage cylinder. Compared with the prior art, the oil leakage monitoring mechanism solves the problems that in the prior art, an oil leakage monitoring mechanism is long in installation time, and the monitoring function can be recovered only by disassembling and cleaning the liquid storage cylinder after long-time use.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to an oil leakage monitoring mechanism for a conductive rod. Background Technology

[0002] The transformer conductor rod is a grounding device used to connect the transformer body to the ground. It plays a vital role in conducting electricity, grounding, lightning protection, and absorbing fault currents. Due to changes in environment and operating temperature, the internal sealing ring at the connection between the conductor rod and the transformer body expands and contracts with temperature changes. As the service life increases, the sealing ring will age, leading to oil leakage in the gap between the conductor rod and the transformer body.

[0003] In existing technologies, an oil leakage monitoring mechanism is installed on the conductive rod to monitor whether oil on the transformer is leaking down the conductive rod. However, in use, existing oil leakage monitoring mechanisms are generally fixed to the transformer body with bolts. This traditional rigid connection mode is not only time-consuming to operate and reduces equipment maintenance efficiency, but also lacks an active inner wall cleaning mechanism in terms of functional integration design. After long-term operation, the solid deposits formed by the drying of insulating oil will seriously obscure the liquid level observation window, making it impossible for maintenance personnel to accurately judge the leakage status through visual inspection. Disassembly and cleaning are required to restore the monitoring function. This design defect significantly increases the maintenance cost of the equipment throughout its entire life cycle.

[0004] Furthermore, we disclose an oil leakage monitoring mechanism for conductive rods to meet the practical needs of existing oil leakage monitoring mechanisms, which have long installation times and require disassembly and cleaning of the storage cylinder after prolonged use to restore monitoring functionality. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an oil leakage monitoring mechanism for conductive rods, so as to solve the problems of long installation time and the need to disassemble and clean the liquid storage cylinder after long-term use to restore the monitoring function in the prior art.

[0006] To achieve the above objectives, this utility model provides an oil leakage monitoring mechanism for a conductive rod, comprising a connecting pipe and a storage cylinder. The storage cylinder is threadedly connected to the lower end of the connecting pipe. The connecting pipe is sleeved on the outside of the conductive rod, with the lower end of the conductive rod penetrating the storage cylinder. A quick-connect assembly is provided at the upper end of the connecting pipe, which is used to quickly install the connecting pipe onto the connecting component at the upper end of the conductive rod. Scrapers are provided on both sides of the inside of the storage cylinder, with one end of the scraper fitting against the inner wall of the storage cylinder. A driving assembly is provided on one side of the upper end of the storage cylinder, which is used to drive the two scrapers to rotate around the axis of the storage cylinder inside the storage cylinder. A through hole is opened in the middle of the lower end of the storage cylinder, and a sealing sleeve is fixedly connected to the inner wall of the through hole.

[0007] Preferably, the quick-connect assembly includes two suction cups fixedly connected to both sides of the upper end of the connecting tube. A piston chamber is opened on both sides of the inside of the connecting tube. The two suction cups are respectively connected to the two piston chambers. A piston plate is slidably connected inside the piston chamber. A connecting rod is fixedly connected to one end face of the piston plate. The connecting rod is L-shaped.

[0008] Preferably, a movable groove is provided on one side of the outer wall of the connecting pipe, the end of the connecting rod away from the piston plate is slidably connected to the movable groove, and the length of the connecting rod is greater than the length of the movable groove.

[0009] Preferably, a rotating ring is rotatably connected to the outside of the connecting pipe, and the ends of the two connecting rods away from the piston plate are fixedly connected to the inner wall of the rotating ring.

[0010] Preferably, the upper end of the connecting tube has two limiting holes on both sides of the lower end of the rotating ring, and a telescopic spring is fixedly connected to both sides of the lower end face of the rotating ring, with a limiting rod fixedly connected to the lower end of each of the two telescopic springs.

[0011] Preferably, the driving assembly includes an annular plate rotatably connected to the upper end of the inner wall of the liquid storage cylinder, a locking block fixedly connected to the outer wall of the annular plate, the annular plate being rotatably connected to the liquid storage cylinder through the locking block, and the upper ends of the two scrapers being fixedly connected to the annular plate.

[0012] Preferably, a plurality of levers are fixedly connected at even intervals on the inner wall of the ring plate, a rotating rod is rotatably connected to the upper end of the liquid storage cylinder, a plurality of abutments are fixedly connected at even intervals on the outer wall of one end of the rotating rod that extends into the liquid storage cylinder, the lower end of the abutments extends between two levers, and a rocker arm is fixedly connected to the end of the rotating rod away from the abutments.

[0013] Preferably, the liquid storage cylinder is made of transparent resin material, and the surface of the liquid storage cylinder is provided with scale lines.

[0014] The beneficial effects of this utility model are:

[0015] The quick-connect component of this device significantly improves the installation and maintenance efficiency of conductive rod monitoring equipment through a dual fixing mechanism of negative pressure adsorption and mechanical limiting. Traditional bolt connection methods require a lot of time for alignment and tightening operations, while this component drives the piston plate to move in the piston chamber through a rotating ring. The negative pressure principle makes the suction cup tightly adhere to the surface of the object being connected, and the whole process can be completed in a few seconds, greatly shortening the operation time. At the same time, the mechanical locking design of the limiting rod and limiting hole ensures the stability of the connection and avoids loosening of the connection due to vibration or temperature changes. It retains the convenience of quick assembly and disassembly and achieves the reliability comparable to rigid connection, fundamentally solving the technical problem of the difficulty in balancing efficiency and stability in traditional connection methods.

[0016] This device solves the problem of observation obstacles caused by oil buildup on the inner wall of traditional oil monitoring devices by using a drive component. Through mechanical transmission of rocker, rotating rod, stop rod, and lever, the manual rotation action is converted into the circumferential motion of the ring plate, which in turn drives the scraper to scrape the inner wall of the liquid storage cylinder. With the transparent resin material and scale design, maintenance personnel can observe the oil status in real time and complete the inner wall cleaning without interrupting the operation of the equipment. This not only extends the equipment maintenance cycle, but also avoids the risk of monitoring interruption caused by disassembly operations, significantly improving the continuity and accuracy of oil leakage monitoring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the connecting pipe of this utility model;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the connecting pipe of this utility model with the swivel ring removed;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the internal structure of the connecting pipe of this utility model;

[0022] Figure 5 This is a schematic diagram showing the installation position of the limiting rod of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the liquid storage cylinder of this utility model;

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] The diagram is marked as follows:

[0026] 1. Connecting pipe; 2. Liquid storage cylinder; 3. Rotating ring; 4. Suction cup; 5. Movable groove; 6. Limiting hole; 7. Sealing sleeve; 8. Connecting rod; 9. Piston plate; 10. Piston chamber; 11. Telescopic spring; 12. Limiting rod; 13. Ring plate; 14. Abutment rod; 15. Toggle rod; 16. Scraper; 17. Locking block; 18. Rocker arm; 19. Rotating rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] like Figures 1 to 7 As shown, an oil leakage monitoring mechanism for a conductive rod includes a connecting pipe 1 and a liquid storage cylinder 2. The liquid storage cylinder 2 is threaded to the lower end of the connecting pipe 1. The connecting pipe 1 is sleeved on the outside of the conductive rod, and the lower end of the conductive rod passes through the liquid storage cylinder 2. A quick-connect assembly is provided at the upper end of the connecting pipe 1. The quick-connect assembly is used to quickly install the connecting pipe 1 on the connecting part at the upper end of the conductive rod. Scrapers 16 are provided on both sides inside the liquid storage cylinder 2. One end of the scraper 16 is in contact with the inner wall of the liquid storage cylinder 2. A driving assembly is provided on one side of the upper end of the liquid storage cylinder 2. The driving assembly is used to drive the two scrapers 16 to rotate around the axis of the liquid storage cylinder 2 inside the liquid storage cylinder 2. A through hole is opened in the middle of the lower end of the liquid storage cylinder 2. A sealing sleeve 7 is fixedly connected to the inner wall of the through hole.

[0030] This mechanism is an oil leakage monitoring device for conductive rods, mainly composed of a connecting pipe 1, a liquid storage cylinder 2, a quick-connect assembly, and a drive assembly. The connecting pipe 1 is sleeved on the outside of the conductive rod, and its lower end is threaded to the liquid storage cylinder 2. The lower end of the conductive rod passes through the liquid storage cylinder 2. The liquid storage cylinder 2 is made of transparent resin and has graduation lines for collecting and observing leaked oil. The device is fixed to the upper part of the conductive rod by a quick-connect assembly: when the rotating ring 3 is rotated, the piston plate 9 is moved in the piston chamber 10 by the connecting rod 8, so that the suction cup 4 generates negative pressure and adsorbs onto the surface of the object being connected. At the same time, the limiting rod 12 is inserted into the limiting hole 6 to complete the mechanical locking and ensure a stable connection. When the oil on the inner wall of the liquid storage cylinder 2 dries up, it is cleaned by the drive assembly: the rotating rocker 18 drives the rotating rod 19 to rotate, so that the abutment rod 14 periodically moves the lever 15 on the inner wall of the ring plate 13, driving the ring plate 13 and the scraper 16 fixed on it to rotate around the axis of the liquid storage cylinder 2. The scraper 16 scrapes the oil against the inner wall. The transparent cylinder body with scale lines can monitor the cleaning effect and the amount of oil residue in real time.

[0031] Furthermore, such as Figures 1 to 5 As shown, the quick-connect assembly includes two suction cups 4 fixedly connected to both sides of the upper end of the connecting tube 1. A piston chamber 10 is opened on both sides of the inner wall of the connecting tube 1. The two suction cups 4 are respectively connected to the two piston chambers 10. A piston plate 9 is slidably connected inside the piston chamber 10. A connecting rod 8 is fixedly connected to one end face of the piston plate 9. The connecting rod 8 is L-shaped. A movable groove 5 is opened on one side of the outer wall of the connecting tube 1. The end of the connecting rod 8 away from the piston plate 9 is slidably connected to the movable groove 5, and the length of the connecting rod 8 is greater than the length of the movable groove 5. A rotating ring 3 is rotatably connected to the outside of the connecting tube 1. The ends of the two connecting rods 8 away from the piston plate 9 are fixedly connected to the inner wall of the rotating ring 3. Two limiting holes 6 are opened on both sides of the lower end of the rotating ring 3 at the upper end of the connecting tube 1. Telescopic springs 11 are fixedly connected to both sides of the lower end face of the rotating ring 3. Limiting rods 12 are fixedly connected to the lower ends of the two telescopic springs 11.

[0032] The quick-connect assembly achieves rapid fixation through rotational drive and negative pressure adsorption. Its working process is as follows: When connection is needed, the operator rotates the rotating ring 3. The rotational motion of the ring 3 is converted into the movement of the piston plate 9 via the fixedly connected L-shaped connecting rod 8. Since the length of the connecting rod 8 exceeds the size of the movable groove 5, the rotation of the ring 3 causes the connecting rod 8 to slide along the path of the movable groove 5, thereby pushing the piston plate 9 to move within the piston cavity 10. The displacement of the piston plate 9 changes the volume of the piston cavity 10, creating a negative pressure environment inside the suction cup 4 connected to it. The external atmospheric pressure then tightly presses the suction cup 4 against the pressure inside. When the rotating ring 3 is placed on the surface of the object to be connected, it completes the adsorption and fixation. At the same time, when the rotating ring 3 rotates to the working position, the limiting rod 12 connected to its lower end through the telescopic spring 11 is aligned with the preset limiting hole 6 on the connecting tube 1. The elastic potential energy of the spring is released to push the limiting rod 12 into the limiting hole 6, forming a mechanical locking structure. This not only prevents the rotating ring 3 from rotating unexpectedly due to vibration, but also maintains the displacement of the piston plate 9 through rigid connection, ensuring that the suction cup 4 continuously maintains an effective negative pressure adsorption state. The whole process achieves tool-free quick assembly and disassembly through pure mechanical transmission, and the dual fixing mechanism ensures the reliability of the connection.

[0033] Compared to traditional bolt fixing methods, this quick-connect assembly achieves a qualitative leap in installation efficiency through the synergistic effect of mechanical transmission and negative pressure adsorption. Taking the on-site assembly of a 220kV main transformer oil leakage monitoring device as an example: conventional bolt fixing requires six steps, including positioning, drilling, and tightening the nut, with a torque wrench requiring more than 30 rotations. The average time for a single person to operate is 12 minutes and 35 seconds, and there is a risk of bolt stripping. However, when using this assembly, the operator only needs to align the suction cup 4 with the mounting surface and rotate the rotating ring 3 until the limit rod 12 is engaged. The entire process can be completed with continuous rotation by one hand. Actual measurements under the same working conditions show that the installation time is reduced to 48 seconds, improving efficiency by 93.7%.

[0034] Furthermore, such as Figures 6 to 7 As shown, the drive assembly includes an annular plate 13 rotatably connected to the upper end of the inner wall of the liquid storage cylinder 2. A locking block 17 is fixedly connected to the outer wall of the annular plate 13. The annular plate 13 is rotatably connected to the liquid storage cylinder 2 through the locking block 17. The upper ends of the two scrapers 16 are fixedly connected to the annular plate 13. Multiple levers 15 are fixedly connected at even intervals on the inner wall of the annular plate 13. A rotating rod 19 is rotatably connected to the upper end of the liquid storage cylinder 2. Multiple abutments 14 are fixedly connected at even intervals on the outer wall of one end of the rotating rod 19 that extends into the interior of the liquid storage cylinder 2. The lower end of the abutment 14 extends between the two levers 15. A rocker arm 18 is fixedly connected to the end of the rotating rod 19 that is away from the abutment 14. The liquid storage cylinder 2 is made of transparent resin material, and scale lines are provided on the surface of the liquid storage cylinder 2.

[0035] The drive assembly cleans the oil from the inner wall of the storage cylinder 2 through mechanical transmission. The working process is as follows: When the operator rotates the rotating rod 19 by the rocker arm 18, the abutment 14 on the outer wall of the rotating rod 19 rotates synchronously and periodically inserts into the gap of the lever 15 on the inner wall of the ring plate 13. The radial force generated by the contact between the abutment 14 and the lever 15 pushes the ring plate 13 to rotate. The locking block 17 on the outer wall of the ring plate 13 cooperates with the locking groove on the inner wall of the storage cylinder 2 to form an axial limit, ensuring that the ring plate 13 only rotates circumferentially. The two scrapers 16 fixed at the lower end of the ring plate 13 then revolve around the axis of the storage cylinder 2. Their cutting edges that fit against the inner wall scrape the dried oil. The transparent resin material of the storage cylinder 2, together with the surface scale lines, allows for real-time observation of the scraping effect and judgment of the oil residue by scale changes. The entire transmission mechanism achieves zero-power-source drive through pure mechanical meshing. The rotating connection design between the locking block 17 and the storage cylinder 2 also ensures that the scraper 16 always maintains contact pressure with the inner wall.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A kind of oil leakage monitoring mechanism for electrically conductive pole, including connecting pipe (1) and liquid storage cylinder (2), it is characterized in that: The liquid storage cylinder (2) is threaded to the lower end of the connecting pipe (1). The connecting pipe (1) is sleeved on the outside of the conductive rod and the lower end of the conductive rod passes through the liquid storage cylinder (2). A quick connection assembly is provided at the upper end of the connecting pipe (1). The quick connection assembly is used to quickly install the connecting pipe (1) on the connecting part at the upper end of the conductive rod. Scrapers (16) are provided on both sides inside the liquid storage cylinder (2). One end of the scraper (16) is in contact with the inner wall of the liquid storage cylinder (2). A driving assembly is provided on one side of the upper end of the liquid storage cylinder (2). The driving assembly is used to drive the two scrapers (16) to rotate around the axis of the liquid storage cylinder (2) inside the liquid storage cylinder (2). A through hole is opened in the middle of the lower end of the liquid storage cylinder (2). A sealing sleeve (7) is fixedly connected to the inner wall of the through hole.

2. A mechanism for monitoring oil leakage for a conductive pole according to claim 1, characterized in that: The quick-connect assembly includes two suction cups (4) fixedly connected to the upper sides of the connecting tube (1). The connecting tube (1) has piston chambers (10) on both sides. The two suction cups (4) are respectively connected to the two piston chambers (10). A piston plate (9) is slidably connected inside the piston chamber (10). A connecting rod (8) is fixedly connected to one end face of the piston plate (9). The connecting rod (8) is L-shaped.

3. A mechanism for monitoring oil leakage for a conductive pole according to claim 2, characterized in that: The outer wall of the connecting pipe (1) is provided with a movable groove (5), and the end of the connecting rod (8) away from the piston plate (9) is slidably connected to the movable groove (5), and the length of the connecting rod (8) is greater than the length of the movable groove (5).

4. A mechanism for monitoring oil leakage for a conductive pole according to claim 3, characterized in that: The connecting pipe (1) is rotatably connected to a rotating ring (3), and the ends of the two connecting rods (8) away from the piston plate (9) are fixedly connected to the inner wall of the rotating ring (3).

5. A mechanism for monitoring oil leakage for a conductive pole according to claim 4, characterized in that: The upper end of the connecting tube (1) is located on both sides of the lower end of the rotating ring (3) with two limiting holes (6). Both sides of the lower end face of the rotating ring (3) are fixedly connected with telescopic springs (11), and the lower ends of the two telescopic springs (11) are fixedly connected with limiting rods (12).

6. The oil leakage monitoring mechanism for a conductive rod according to claim 1, characterized in that: The driving assembly includes an annular plate (13) rotatably connected to the upper end of the inner wall of the liquid storage cylinder (2). A locking block (17) is fixedly connected to the outer wall of the annular plate (13). The annular plate (13) is rotatably connected to the liquid storage cylinder (2) through the locking block (17). The upper ends of the two scrapers (16) are fixedly connected to the annular plate (13).

7. A mechanism for monitoring oil leakage for a conductive pole according to claim 6, characterized in that: The inner wall of the ring plate (13) is fixedly connected with a plurality of levers (15) at even intervals. The upper end of the liquid storage cylinder (2) is rotatably connected with a rotating rod (19). The rotating rod (19) extends into the liquid storage cylinder (2) and the outer wall of one end is fixedly connected with a plurality of abutments (14) at even intervals. The lower end of the abutment (14) extends between two levers (15). The end of the rotating rod (19) away from the abutment (14) is fixedly connected with a rocker arm (18).

8. A mechanism for monitoring oil leakage for a conductive pole according to claim 1, characterized in that: The surface of the liquid storage cylinder (2) is provided with scale lines.

Images