Wear-resistant mechanical level meter transmission mechanism

Abstract

The utility model relates to the technical field of level meters, in particular to a wear-resistant mechanical level meter transmission mechanism which comprises a cover plate and a depth rod, a first rectangular opening is formed in the top of the cover plate, two first U-shaped fixing blocks are arranged at the top of the cover plate and rotationally connected with first guide wheels, a circular column is arranged at the bottom of the cover plate, and a second rectangular opening is formed in the bottom of the circular column. A second rectangular opening is formed in the bottom of the circular column, two second U-shaped fixing blocks are arranged at the bottom of the circular column, the two second U-shaped fixing blocks are rotationally connected with second guide wheels, a buoyancy ball is arranged at the bottom end of the depth rod, and a rectangular transparent protective cover is detachably connected to the top of the cover plate. According to the wear-resistant mechanical level meter transmission mechanism, a traditional mechanical level meter is prone to being abraded in the depth rod moving process, precision is affected, and the service life is prolonged. According to the wear-resistant mechanical level meter transmission mechanism, sliding friction of the depth rod is converted into rolling friction through the arrangement of the guide wheel, the wear degree of equipment is greatly reduced, and therefore the service life and the maintenance period of the device are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of level meters, in particular to a wear-resistant mechanical level meter transmission mechanism. Background Art

[0002] Liquid level measurement is a crucial component in industrial production and process control, directly impacting production efficiency, safety, and resource management. Traditional mechanical level gauges, particularly float-type level gauges, are widely used due to their simple structure, low cost, and lack of power supply. Their basic principle is to measure liquid level changes by driving the movement of a float and connecting rod through changes in buoyancy. This design provides a reliable solution across many industries.

[0003] Patent publication number CN219265448U discloses a solution level meter, comprising a circular plate, the exterior of which is fixedly connected to a plunger for sealing a solution tank. The surface of the plunger is provided with an annular groove for plugging the solution tank, and the interior of the annular groove is fixedly connected to an expansion bladder for sealing the plunger and the inner wall of the solution tank outlet. The circular plate is supported on the exterior of the solution tank opening, and the plunger is inserted into the interior of the solution tank opening. The pressure ball deforms, allowing external air to flow into the expansion bladder through a one-way air intake valve and a conduit. The expansion bladder inflates and expands inside the annular groove until it contacts and compresses the inner wall of the solution tank, thereby tightly securing the plunger to solution tank openings of different sizes. A buoyancy plate drives a depth rod to slide inside a smooth sleeve as the lithium bromide liquid level changes, and a lens is used to capture the depth rod scale changes in real time, which are then transmitted to a liquid display screen for display to the measurement personnel, thereby improving the service life and reliability of the lithium bromide solution level meter.

[0004] During the specific use of the above-mentioned existing technology, the buoyancy plate drives the depth rod to slide on the inside of the smooth sleeve as the liquid level changes. This frequent up and down movement will inevitably lead to wear. Wear not only affects the accuracy and durability of the equipment, but also increases the frequency of maintenance. In addition, there must be a small gap between the depth rod and the smooth sleeve. This structure easily leads to poor sealing, resulting in insufficient sealing at the connection between the level meter and the tank body, which in turn brings potential safety hazards. In view of this, we propose a wear-resistant mechanical level meter transmission mechanism. Utility Model Content

[0005] The purpose of the present invention is to provide a wear-resistant mechanical level meter transmission mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The wear-resistant mechanical level meter transmission mechanism includes a cover plate and a depth rod. The cover plate is arranged at the top of the container opening to support other components. A first rectangular opening is opened in the middle of the top of the cover plate. First U-shaped solid blocks are provided on the top of the cover plate and on the left and right sides of the first rectangular opening. The two first U-shaped solid blocks are rotatably connected to first guide wheels. The depth rod is located between the two first guide wheels. When the depth rod moves up and down, the two first guide wheels rotate with the movement of the depth rod, changing sliding friction to relative rolling, effectively reducing wear, and thus achieving a wear-resistant effect.

[0008] A circular column is provided in the middle of the bottom of the cover plate, and the circular column is placed in the opening of the container. An annular groove is provided on the outer wall of the circular column, and an annular airbag is provided in the annular groove. The annular airbag blocks the opening of the container after inflation, thereby fixing the position of the cover plate and the circular column, and sealing the opening of the container at the same time. A second rectangular opening connected to the first rectangular opening is provided in the middle of the bottom of the circular column, so that the depth rod can smoothly pass through the cover plate and the circular column. A second U-shaped solid block is provided at the bottom of the circular column and at positions on the left and right sides of the second rectangular opening. The two second U-shaped solid blocks are rotatably connected to the second guide wheel. The depth rod is located between the two second guide wheels. When the depth rod moves up and down, the two second guide wheels rotate with the movement of the depth rod, changing the sliding friction to relative rolling, effectively reducing wear, thereby achieving a wear-resistant effect;

[0009] The front side of the depth rod is provided with a scale to mark the liquid level height on the depth rod so that it can be read from the outside, making it easy for staff to check the upward or downward displacement of the depth rod. The bottom end of the depth rod is provided with a buoyancy ball, which changes with the amount of solution in the container. The top of the cover plate is detachably connected to a rectangular transparent shield to perform a sealing function to prevent the gas in the container from volatilizing from the second rectangular opening and the first rectangular opening.

[0010] Preferably, an air duct with a valve is provided on the top of the cover plate near the rear side. The air duct is connected to the annular airbag to help inflate the airbag to maintain a seal with the solution tank. The valve makes it easy for staff to inflate and deflate the air.

[0011] Preferably, an annular rubber pad is provided at the bottom of the cover plate and near the outer edge. The thickness of the annular rubber pad is 4-8 mm, which further improves the sealing performance between the cover plate and the container opening.

[0012] Preferably, an anti-drop block is provided at the top of the depth rod, the length of the anti-drop block is greater than the length of the first rectangular opening, and the width of the anti-drop block is greater than the width of the first rectangular opening to prevent the depth rod from falling downward.

[0013] Preferably, a threaded rod is provided at the bottom end of the depth rod, and a threaded groove for threaded connection of the threaded rod is provided on the outer wall of the buoyancy ball, so as to facilitate the disassembly and assembly of the buoyancy ball and the depth rod.

[0014] Preferably, a fixed vertical pole is provided at the top of the cover plate and near the front side of the first rectangular opening, and a magnifying glass is provided at the top end of the fixed vertical pole. The magnifying glass is located directly in front of the depth rod and is used to magnify the scale on the depth rod for easy reading.

[0015] Preferably, a frame-shaped mounting plate is provided at the bottom of the outer wall of the rectangular transparent shield, and mounting holes are provided at the top of the frame-shaped mounting plate and near the four corners. Bolts are connected in the mounting holes, and the bolts are threadedly connected to the top of the cover plate, which facilitates the disassembly and assembly of the rectangular transparent shield, thereby facilitating the disassembly and assembly of the depth rod, so that the components of the level meter can be disassembled and assembled, which is conducive to maintenance and repair.

[0016] Preferably, a frame-shaped groove is provided at the bottom of the frame-shaped mounting plate, a frame-shaped rubber pad is provided in the frame-shaped groove, and the bottom of the frame-shaped rubber pad fits tightly with the top of the cover plate to ensure the sealing of the connection between the rectangular transparent shield and the cover plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The wear-resistant mechanical level meter transmission mechanism. Traditional mechanical level meters are prone to wear during the movement of the depth rod, affecting accuracy and life. This level meter converts the sliding friction of the depth rod into rolling friction by setting a guide wheel, greatly reducing the wear of the equipment, thereby extending the service life and maintenance cycle of the device.

[0019] 2. The wear-resistant mechanical level meter transmission mechanism has an inflatable annular airbag installed in the annular groove on the outer wall of the circular column. The airbag can effectively block the opening of the container and achieve a stronger seal with the cover. This design not only fixes the position, but also prevents liquid leakage and external air ingress, thereby improving the stability of the measurement environment.

[0020] 3. The wear-resistant mechanical level meter transmission mechanism has an anti-drop block on the top of the depth rod, which is larger than the first rectangular opening to ensure that the rod will not fall off accidentally. This design improves the reliability of equipment operation and prevents safety hazards caused by possible operational errors.

[0021] 4. The wear-resistant mechanical level meter transmission mechanism has a rectangular transparent shield connected to the cover through a frame-shaped mounting plate and bolts. At the same time, a frame-shaped rubber pad ensures the sealing of the connection between the rectangular transparent shield and the cover, which is easy to disassemble and assemble. This design simplifies the replacement and maintenance process of the depth rod and buoyancy ball, making the equipment more convenient when maintenance is required, reducing downtime and labor costs for users.

[0022] 5. The wear-resistant mechanical level meter transmission mechanism can clearly magnify the scale on the depth rod by setting a magnifying glass on the fixed vertical pole, making it easier for operators to accurately read the liquid level data. This design makes it easier for managers to monitor liquid level changes and improves the visualization and accuracy of the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first perspective;

[0024] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0025] Figure 3 This is one of the partial structural diagrams of the utility model;

[0026] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0027] Figure 5 This is the third schematic diagram of the partial structure of the utility model;

[0028] Figure 6 This is a schematic diagram of the assembly structure of the depth rod and the buoyancy ball in the present invention;

[0029] Figure 7 This is a schematic diagram of the assembly structure of the rectangular transparent shield and the frame-shaped rubber pad in the present invention;

[0030] In the figure: 1. Cover plate; 10. First rectangular opening; 11. First U-shaped solid block; 12. First guide wheel; 13. Fixed vertical pole; 14. Air guide tube; 2. Circular column; 20. Annular groove; 21. Second rectangular opening; 22. Second U-shaped solid block; 23. Second guide wheel; 3. Annular airbag; 4. Depth rod; 40. Scale; 41. Threaded rod; 42. Anti-slip block; 5. Buoyancy ball; 50. Threaded groove; 6. Magnifying glass; 7. Rectangular transparent shield; 70. Frame-shaped mounting plate; 700. Mounting hole; 701. Frame-shaped groove; 71. Bolt; 8. Annular rubber pad; 9. Frame-shaped rubber pad. DETAILED DESCRIPTION

[0031] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0034] The wear-resistant mechanical level meter transmission mechanism includes a cover plate 1 and a depth rod 4. The cover plate 1 is arranged at the top of the container opening to support other components. A first rectangular opening 10 is opened in the middle of the top of the cover plate 1. First U-shaped solid blocks 11 are provided on the top of the cover plate 1 and on the left and right sides of the first rectangular opening 10. The two first U-shaped solid blocks 11 are rotatably connected to first guide wheels 12. The depth rod 4 is located between the two first guide wheels 12. When the depth rod 4 moves up and down, the two first guide wheels 12 rotate with the movement of the depth rod 4, changing sliding friction to relative rolling, effectively reducing wear, and thus achieving a wear-resistant effect.

[0035] A circular column 2 is provided in the middle of the bottom of the cover plate 1, and the circular column 2 is placed in the opening of the container. An annular groove 20 is provided on the outer wall of the circular column 2, and an annular airbag 3 is provided in the annular groove 20. The annular airbag 3 blocks the opening of the container after inflation, thereby fixing the position of the cover plate 1 and the circular column 2, and sealing the opening of the container at the same time. A second rectangular opening 21 connected to the first rectangular opening 10 is provided in the middle of the bottom of the circular column 2, so that the depth rod 4 can smoothly pass through the cover plate 1 and the circular column 2. Second U-shaped solid blocks 22 are provided at the bottom of the circular column 2 and on the left and right sides of the second rectangular opening 21. The two second U-shaped solid blocks 22 are rotatably connected to second guide wheels 23. The depth rod 4 is located between the two second guide wheels 23. When the depth rod 4 moves up and down, the two second guide wheels 23 rotate with the movement of the depth rod 4, changing the sliding friction into relative rolling, effectively reducing wear, thereby achieving a wear-resistant effect;

[0036] A scale 40 is provided on the front side of the depth rod 4 to mark the liquid level height on the depth rod 4 so that it can be read from the outside, making it convenient for staff to check the upward or downward displacement of the depth rod 4. A buoyancy ball 5 is provided at the bottom end of the depth rod 4. The buoyancy ball 5 changes with the amount of solution in the container. A rectangular transparent shield 7 is detachably connected to the top of the cover 1 to perform a sealing function to prevent the gas in the container from volatilizing from the second rectangular opening 21 and the first rectangular opening 10.

[0037] In this embodiment, an air duct 14 with a valve is provided at the top of the cover plate 1 near the rear side. The air duct 14 is connected to the annular airbag 3 to help inflate the airbag to maintain a seal with the solution tank. The valve makes it easy for staff to inflate and deflate the air.

[0038] Specifically, an annular rubber pad 8 is provided at the bottom of the cover plate 1 and near the outer edge. The thickness of the annular rubber pad 8 is 4-8 mm, which further improves the sealing between the cover plate 1 and the container opening.

[0039] Furthermore, an anti-falling block 42 is provided at the top of the depth rod 4. The length of the anti-falling block 42 is greater than the length of the first rectangular opening 10, and the width of the anti-falling block 42 is greater than the width of the first rectangular opening 10, so as to prevent the depth rod 4 from falling downward.

[0040] Furthermore, a threaded rod 41 is provided at the bottom end of the depth rod 4 , and a threaded groove 50 for threaded connection of the threaded rod 41 is provided on the outer wall of the buoyancy ball 5 , so as to facilitate the disassembly and assembly of the buoyancy ball 5 and the depth rod 4 .

[0041] Furthermore, a fixed vertical rod 13 is provided at the top of the cover plate 1 and near the front side of the first rectangular opening 10, and a magnifying glass 6 is provided at the top of the fixed vertical rod 13. The magnifying glass 6 is located directly in front of the depth rod 4 and is used to magnify the scale 40 on the depth rod 4 for easy reading.

[0042] Furthermore, a frame-shaped mounting plate 70 is provided at the bottom of the outer wall of the rectangular transparent shield 7. Mounting holes 700 are provided at the top of the frame-shaped mounting plate 70 and near the four corners. Bolts 71 are connected in the mounting holes 700. The bolts 71 are threadedly connected to the top of the cover plate 1, which facilitates the disassembly and assembly of the rectangular transparent shield 7, thereby facilitating the disassembly and assembly of the depth rod 4, so that the components of the level meter can be disassembled and assembled, which is conducive to maintenance and repair.

[0043] Furthermore, a frame-shaped groove 701 is provided at the bottom of the frame-shaped mounting plate 70, and a frame-shaped rubber pad 9 is provided in the frame-shaped groove 701. The bottom of the frame-shaped rubber pad 9 fits tightly with the top of the cover plate 1 to ensure the sealing of the connection between the rectangular transparent shield 7 and the cover plate 1.

[0044] When the wear-resistant mechanical level meter transmission mechanism of this embodiment is used, first, the cover plate 1 is placed on the container opening, ensuring that the circular column 2 at its center is inserted into the interior of the container opening, and the cover plate 1 is adjusted so that the annular rubber pad 8 fits tightly against the edge of the container opening to enhance the sealing effect. Next, the valve of the air guide tube 14 is opened, and air is injected to expand the annular airbag 3, ensuring that the annular airbag 3 is fully inflated and fills the interior of the container opening, thereby sealing the container opening. The position of the cover plate 1 and the circular column 2 is fixed. The arrangement of the first guide wheel 12 and the second guide wheel 23 can reduce The friction of the depth rod 4 during its up and down movement, check the front end scale 40 of the depth rod 4, the buoyancy ball 5 can float according to the liquid level. During the operation of the device, use a magnifying glass 6 to observe the scale 40 on the depth rod 4 to monitor the changes in the liquid level in the container. When the liquid level changes, the buoyancy ball 5 will float up or down accordingly, driving the depth rod 4 to slide between the guide wheels. The rolling friction design reduces wear and tear. This design ensures the service life and performance stability of the level meter through the improved anti-wear structure and sealing structure, and has important practical value in industrial liquid level measurement applications.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant mechanical level meter transmission mechanism, comprising a cover plate (1) and a depth rod (4), characterized in that: A first rectangular opening (10) is provided in the middle of the top of the cover plate (1), and first U-shaped solid blocks (11) are provided at the top of the cover plate (1) and at positions on the left and right sides of the first rectangular opening (10), and the two first U-shaped solid blocks (11) are rotatably connected to the first guide wheel (12), and the depth rod (4) is located between the two first guide wheels (12). A circular column (2) is provided in the middle of the bottom of the cover plate (1), and an annular groove (20) is provided on the outer wall of the circular column (2), and an annular air bag (3) is provided in the annular groove (20). The circular column (2) A second rectangular opening (21) communicating with the first rectangular opening (10) is provided in the middle of the bottom portion. Second U-shaped solid blocks (22) are provided at the bottom of the circular column (2) and at positions on the left and right sides of the second rectangular opening (21). The two second U-shaped solid blocks (22) are rotatably connected to second guide wheels (23). The depth rod (4) is located between the two second guide wheels (23). A scale (40) is provided on the front side of the depth rod (4). A buoyancy ball (5) is provided at the bottom end of the depth rod (4). The top of the cover plate (1) is detachably connected to a rectangular transparent shield (7).

2. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: An air guide tube (14) with a valve is provided at the top of the cover plate (1) and near the rear side, and the air guide tube (14) is in communication with the annular air bag (3).

3. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: An annular rubber pad (8) is provided at the bottom of the cover plate (1) and close to the outer edge. The thickness of the annular rubber pad (8) is 4-8 mm.

4. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: An anti-dropout block (42) is provided at the top end of the depth rod (4), the length of the anti-dropout block (42) is greater than the length of the first rectangular opening (10), and the width of the anti-dropout block (42) is greater than the width of the first rectangular opening (10).

5. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: A threaded rod (41) is provided at the bottom end of the depth rod (4), and a threaded groove (50) for threaded connection of the threaded rod (41) is provided on the outer wall of the buoyancy ball (5).

6. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: A fixed vertical rod (13) is provided at the top of the cover plate (1) and near the front side of the first rectangular opening (10), and a magnifying glass (6) is provided at the top end of the fixed vertical rod (13). The magnifying glass (6) is located directly in front of the depth rod (4).

7. The wear-resistant mechanical level meter transmission mechanism according to claim 1, characterized in that: A frame-shaped mounting plate (70) is provided at the bottom of the outer wall of the rectangular transparent shield (7), and mounting holes (700) are provided at the top of the frame-shaped mounting plate (70) and near the four corners. Bolts (71) are connected in the mounting holes (700), and the bolts (71) are threadedly connected to the top of the cover plate (1).

8. The wear-resistant mechanical level meter transmission mechanism according to claim 7, characterized in that: A frame-shaped groove (701) is provided at the bottom of the frame-shaped mounting plate (70), a frame-shaped rubber pad (9) is provided in the frame-shaped groove (701), and the bottom of the frame-shaped rubber pad (9) is tightly fitted with the top of the cover plate (1).

Images