A float type oil pillow oil level gauge
The floating oil level gauge solves the problem of complex transformer oil level gauge installation through snap-fit connection and suction cup structure, enabling quick installation and convenient replacement, and is suitable for transformer equipment with limited space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG HAIRUOLAN INFORMATION TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-23
AI Technical Summary
The installation process of existing transformer oil level gauges requires large flanges and multiple bolts, resulting in long installation time and high cost, especially when space is limited or when working at height.
The float-type oil level gauge adopts a snap-fit connection structure, using springs and movable columns to achieve a self-locking connection of the flange, simplifying the installation process, and the float can be easily replaced through a suction cup and threaded tube structure.
It reduces installation space requirements, simplifies the installation process, is suitable for space-constrained equipment, and simplifies float replacement operations, reducing labor costs and time consumption.
Smart Images

Figure CN224398759U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil level gauge technology, specifically a float-type oil level gauge. Background Technology
[0002] Monitoring the oil level in the transformer's oil conservator is crucial during transformer operation. Changes in the oil level not only reflect internal transformer faults but also serve as an important basis for oil replenishment and maintenance. Currently, transformer oil level monitoring methods mainly include float-type, pressure-type, capacitive-type, and magnetic float-type technologies. However, these traditional oil level gauges often have certain limitations due to structural and operational constraints.
[0003] When installing an oil level gauge, it is usually connected by flange bolts. This connection requires a large flange and many bolts, which increases installation time and labor costs. This is especially true when space is limited or when working at height, making installation more difficult. Therefore, there is a need to provide an oil level gauge that can be installed quickly to improve installation convenience. Utility Model Content
[0004] The purpose of this utility model is to provide a float-type oil level gauge to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model relates to a float-type oil level gauge, comprising:
[0006] An oil conservator, a connecting pipe, an oil level gauge, and an installation pipe are provided. The connecting pipe is fixed to the lower surface of the oil conservator, the oil level gauge is installed on one side of the oil conservator, and the installation pipe is fixedly connected to the lower surface of the oil level gauge.
[0007] The mounting assembly includes a first flange, a fixing post, a slot, a second flange, and square holes. The first flange is fixed to one side of the connecting pipe. Five fixing posts are provided, circumferentially fixed to one side of the first flange. The slot is opened on one side of the outer surface of the fixing post. The second flange is fixed to one side of the mounting pipe, and the five square holes are circumferentially opened on the outer surface of the second flange.
[0008] Furthermore, a float is installed inside the oil level gauge, and five fixed frames are fixed on the outer surface of the second flange, with movable grooves opened on the surface of the fixed frames.
[0009] Furthermore, a movable column slides through the inside of the movable groove, and a baffle is fixed on the outer surface of the movable column.
[0010] Furthermore, a spring is fixed to one side of the baffle, and the spring is located inside the fixed frame, with the end of the movable column extending into the slot.
[0011] Furthermore, it also includes a replacement component, which includes a fixed tube, a threaded hole, a threaded tube, and a connecting frame. The fixed tube is fixed to one side of the outer surface of the oil level gauge, the threaded hole is opened at the center of one side of the fixed tube, the threaded tube is threaded through the inside of the threaded hole, and the connecting frame is fixed to one side of the threaded tube.
[0012] Furthermore, a sliding hole is provided in the center of the threaded tube, and the sliding hole passes through the connecting frame, with a connecting post slidingly passing through the inside of the sliding hole.
[0013] Furthermore, a suction cup is fixed to one end of the connecting column, and the suction cup is located inside the connecting frame. A feeding hole is provided on the lower surface of the fixing tube.
[0014] This utility model has the following beneficial effects:
[0015] This utility model relates to an oil level gauge, connecting pipe, oil level gauge, float, mounting pipe, and mounting components. When installing the oil level gauge, simply insert the mounting pipe into the connecting pipe, allowing the fixed post to engage with the square hole. Under the spring's elasticity, the end of the movable post first contacts the fixed post, pushing the movable post outwards. When the movable post aligns with the slot, the spring's elasticity causes it to quickly return to its original shape, moving the baffle towards the center. The baffle then moves the movable post towards the center, engaging the end of the movable post with the slot, thus tightly connecting the first and second flanges. This snap-fit connection eliminates the need for large flanges and bolts, reducing installation space requirements, making it particularly suitable for space-constrained equipment. Furthermore, by directly inserting the mounting pipe into the connecting pipe, complex alignment or bolt tightening operations are eliminated, greatly simplifying the installation process. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the installation components of this utility model;
[0019] Figure 3 This is an exploded view of the installation component structure of this utility model;
[0020] Figure 4 This is a cross-sectional view of the replacement component of this utility model;
[0021] Figure 5This is an exploded view of the replacement component of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 11. Oil tank; 12. Connecting pipe; 13. Oil level gauge; 14. Float; 15. Mounting pipe;
[0024] 21. First flange; 22. Fixed post; 221. Slot; 23. Second flange; 24. Square hole; 25. Fixed frame; 26. Movable slot; 27. Movable post; 28. Baffle; 29. Spring;
[0025] 31. Fixed tube; 32. Threaded hole; 33. Threaded tube; 34. Connecting frame; 35. Sliding hole; 36. Connecting column; 37. Suction cup; 38. Discharge hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0028] Please see Figure 1-3 As shown, this utility model is a float-type oil level gauge, comprising:
[0029] Oil conservator 11, connecting pipe 12, oil level gauge 13 and mounting pipe 15, the connecting pipe 12 is fixed to the lower surface of oil conservator 11, the oil level gauge 13 is installed on one side of oil conservator 11, and the mounting pipe 15 is fixedly connected to the lower surface of oil level gauge 13.
[0030] The mounting assembly includes a first flange 21, a fixing post 22, a slot 221, a second flange 23, and square holes 24. The first flange 21 is fixed to one side of the connecting pipe 12. Five fixing posts 22 are provided, which are circumferentially fixed to one side of the first flange 21. The slot 221 is opened on one side of the outer surface of the fixing post 22. The second flange 23 is fixed to one side of the mounting pipe 15. Five square holes 24 are circumferentially opened on the outer surface of the second flange 23.
[0031] The oil conservator 11 stores oil, and the connecting pipe 12 is the oil passage connecting the oil conservator 11 to the oil level gauge 13. The oil level gauge 13 measures the oil level, and the float 14 indicates the oil level. The first flange 21 and the second flange 23 are connected by the connecting pipe 12 and the mounting pipe 15 to ensure sealing and stability. The fixing post 22 is used to insert into the square hole 24 of the second flange 23. The slot 221 is used to cooperate with the movable post 27 to achieve locking. The square hole 24 is used to cooperate with the fixing post 22 of the first flange 21 to achieve positioning and connection between the flanges.
[0032] The oil level gauge 13 has a float 14 installed inside, and five fixed frames 25 are fixed on the outer surface of the second flange 23. The fixed frames 25 have movable grooves 26 on their surfaces. Movable columns 27 slide through the movable grooves 26. A baffle 28 is fixed on the outer surface of the movable columns 27. A spring 29 is fixed on one side of the baffle 28. The spring 29 is located inside the fixed frames 25. The end of the movable columns 27 extends into the slot 221.
[0033] The fixed frame 25 is a supporting structure for the movable column 27 and the spring 29, used to fix the spring 29 and guide the movement of the movable column 27. The movable groove 26 is an opening on the fixed frame 25, used to guide the sliding of the movable column 27 and ensure that the movable column 27 can smoothly enter and exit the slot 221. The movable column 27 is a key component for realizing flange self-locking. It is used to be locked into the slot 221 under the elastic force of the spring 29 to ensure the firmness of the flange connection. The spring 29 is a component that provides elastic force to push the movable column 27 into the slot 221 to realize the self-locking of the flange connection.
[0034] Working principle:
[0035] When installing the oil level gauge 13, simply insert the installation tube 15 into the connecting tube 12, so that the fixed column 22 is inserted into the square hole 24. Under the elastic force of the spring 29, the end of the movable column 27 first contacts the fixed column 22, pushing the movable column 27 outward. When the movable column 27 is aligned with the slot 221, the spring 29 will quickly recover its deformation under the elastic force of the spring 29, driving the baffle 28 to move towards the center. The baffle 28 drives the movable column 27 to move towards the center, so that the end of the movable column 27 is inserted into the slot 221, making the first flange 21 and the second flange 23 tightly connected.
[0036] This step, through snap-fit connection, eliminates the need for large flanges and bolts, reducing the required installation space, making it especially suitable for space-constrained equipment. Furthermore, by directly snapping the mounting pipe 15 into the connecting pipe 12, there is no need for complex alignment or bolt tightening operations, greatly simplifying the installation process.
[0037] Please see Figure 1-5 As shown, this embodiment, based on the above embodiment, further includes:
[0038] Replacement components include a fixed tube 31, a threaded hole 32, a threaded tube 33, and a connecting frame 34. The fixed tube 31 is fixed to one side of the outer surface of the oil level gauge 13. The threaded hole 32 is opened at the center of one side of the fixed tube 31. The threaded tube 33 is threaded through the inside of the threaded hole 32. The connecting frame 34 is fixed to one side of the threaded tube 33.
[0039] The diameter of the connecting frame 34 is the same as the inner diameter of the fixed tube 31. When the connecting frame 34 covers the discharge hole 38, the discharge hole 38 will not leak oil. The fixed tube 31 provides an installation base for the threaded tube 33 and the connecting frame 34. The threaded tube 33 passes through the threaded hole 32 through the thread. When the threaded tube 33 is rotated, the threaded tube 33 will move along the axial direction of the threaded hole 32, thereby driving the connecting frame 34 to enter and exit the oil level gauge 13. The connecting frame 34 is a frame used to temporarily accommodate the float 14. During the replacement process, it protects the float 14 and guides it to be taken out or put in through the discharge hole 38.
[0040] The threaded tube 33 has a sliding hole 35 in the center, and the sliding hole 35 passes through the connecting frame 34. The connecting post 36 slides through the sliding hole 35. One end of the connecting post 36 is fixed with a suction cup 37, and the suction cup 37 is located inside the connecting frame 34. The lower surface of the fixed tube 31 has a feeding hole 38.
[0041] The sliding hole 35 is the central through hole of the threaded tube 33 and the connecting frame 34. It is used to guide the sliding of the connecting post 36 and ensure that the connecting post 36 can smoothly enter and exit the oil level gauge 13. The connecting post 36 is a component used to adsorb and grab the float 14. The suction cup 37 at its end is used to fix the float 14, making it easy to remove it from the oil level gauge 13.
[0042] Working principle:
[0043] When the oil level inside the oil level gauge 13 is level with the lower surface of the fixed tube 31, the float 14 can be replaced. Simply rotate the threaded tube 33, and the threaded tube 33 moves in the threaded hole 32, so that the connecting frame 34 extends into the oil level gauge 13. Then push the connecting column 36 so that the suction cup 37 at the end of the connecting column 36 is attached to the float 14. At this time, the float 14 is located inside the connecting frame 34. Then reverse the threaded tube 33 so that the connecting frame 34 returns to the fixed tube 31. The connecting frame 34 is misaligned with the discharge hole 38, so that the float 14 is exposed from the discharge hole 38. Take the float 14 out of the discharge hole 38 and replace it with a new float 14.
[0044] This step involves removing and replacing the float 14 by rotating the threaded tube 33 and pushing the connecting post 36. The operation is simple and requires no multiple people to work together.
[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A float-type oil pillow oil level gauge, characterized by, Include: The oil pillow (11), connecting pipe (12), oil level gauge (13) and installation pipe (15), the connecting pipe (12) is fixed in the lower surface of oil pillow (11), oil level gauge (13) is installed in one side of oil pillow (11), installation pipe (15) is fixedly connected in the lower surface of oil level gauge (13); The installation assembly comprises a first flange (21), a fixed column (22), a clamping groove (221), a second flange (23) and a square hole (24), the first flange (21) is fixed on one side of the connecting pipe (12), the fixed column (22) is provided with five, and is fixed on one side of the first flange (21) circumferentially, the clamping groove (221) is opened on one side of the outer surface of the fixed column (22), the second flange (23) is fixed on one side of the installation pipe (15), and five square holes (24) are circumferentially opened on the outer surface of the second flange (23).
2. A float-type oil pad level gauge according to claim 1, characterized in that: The oil level gauge (13) is internally provided with a float (14), and the outer surface of the second flange (23) is fixed with five fixed frames (25), and the surface of the fixed frame (25) is provided with a movable slot (26).
3. A float-type oil pad level gauge according to claim 2, characterized in that: The movable slot (26) is internally slidably penetrated by a movable column (27), and the outer surface of the movable column (27) is fixedly provided with a baffle (28).
4. A float-type oil pad level gauge according to claim 3, characterized in that: The baffle (28) is fixed on one side of the spring (29), and the spring (29) is located in the fixed frame (25), and the end of the movable column (27) extends into the clamping groove (221).
5. A float-type oil pad level gauge according to claim 2, characterized in that: It also includes a replacement assembly, the replacement assembly comprises a fixed tube (31), a threaded hole (32), a threaded tube (33) and a connecting frame (34), the fixed tube (31) is fixed on one side of the outer surface of the oil level gauge (13), the threaded hole (32) is opened in the center of one side of the fixed tube (31), the threaded tube (33) is threadedly penetrated in the inside of the threaded hole (32), and the connecting frame (34) is fixed on one side of the threaded tube (33).
6. A float-type oil pad level gauge according to claim 5, characterized in that: The center of the threaded tube (33) is provided with a sliding hole (35), and the sliding hole (35) penetrates the connecting frame (34), and the sliding hole (35) is slidably penetrated by a connecting column (36).
7. A float-type oil pad level gauge according to claim 6, characterized in that: One end of the connecting column (36) is fixedly provided with a suction disc (37), and the suction disc (37) is located in the connecting frame (34), and the lower surface of the fixed tube (31) is provided with a discharging hole (38).