Clamp-on float level meter

By employing a quick-assembly and disassembly mechanism and a limit design, the problem of cumbersome connection of traditional clamp-type float level gauges is solved, enabling quick and reliable connection and disassembly of the level gauge and pipeline, thus improving operational efficiency and safety.

CN224551246UActive Publication Date: 2026-07-24XINCHANG COUNTY DABEN INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINCHANG COUNTY DABEN INSTR
Filing Date
2025-09-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional clamp-on float level gauges have cumbersome interface connection methods, which affect the efficiency of installation and replacement, especially in situations with frequent operation.

Method used

It adopts a quick-release mechanism, which drives the bevel gear set by rotating the handle to drive multiple sets of clamping plates to simultaneously engage or disengage from the pipe clamping ring. Combined with the limiting mechanism, it ensures the stability and convenience of the connection, including the anti-return claw and gear meshing design to prevent accidental loosening.

Benefits of technology

It enables quick connection and disconnection of the level gauge and the pipeline, improves installation and disassembly efficiency, and ensures the reliability and safety of the connection, making it particularly suitable for occasions requiring frequent maintenance or replacement.

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Abstract

The utility model relates to the technical field of float liquid level meter, concretely is a kind of clamping type float liquid level meter, including liquid level meter and pipeline, the connecting pipe is fixedly installed on the liquid level meter, the mounting seat is fixedly installed on the connecting pipe, the slot is opened in the connecting pipe, the pipeline is movably connected with the connecting pipe through the slot, the quick dismounting mechanism for pipeline connection is equipped in the mounting seat, the quick dismounting mechanism includes the clamping plate of multiple groups annular distribution in mounting seat, two groups of snap rings are equipped on the pipeline, multiple the clamping plate can be clamped between two groups of snap rings, multiple the clamping plate is rotatably connected with mounting seat by mounting shaft, handle is rotatably installed in the mounting seat, handle and mounting shaft are vertically distributed, the limiting mechanism in the mounting seat, the action of multiple groups of clamping plates of annular distribution can be synchronously controlled by rotating single handle, the quick clamping and separation between pipeline and liquid level meter connecting pipe are realized.
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Description

Technical Field

[0001] This utility model relates to the field of float level gauge technology, specifically a clamp-type float level gauge. Background Technology

[0002] Clamp-on float level gauges, as key instruments for modern industrial process monitoring, are widely used in storage tanks, reaction vessels, and separation equipment in the petroleum, chemical, and pharmaceutical industries. They undertake important monitoring tasks for liquid level, interface level, and density. Their working principle is based on Archimedes' principle of buoyancy and magnetic coupling transmission technology. By measuring the change in buoyancy force on the float, they accurately invert the liquid level height. They have outstanding advantages such as reliable measurement, adaptability to high-pressure and high-temperature conditions, and direct output of switch signals. With the continuous improvement of industrial automation and increasingly stringent safety production requirements, level measurement instruments not only need to meet basic performance indicators, but also have higher requirements in terms of installation efficiency, ease of maintenance, and equipment compatibility.

[0003] Traditional clamp-on float level gauges often use flange connections for interface connections. For example, Chinese utility model patent CN212903757U discloses an airtightness test device for an intelligent float level gauge clamping body. When the inlet and outlet ports of the level gauge are connected to external pipelines, the flanges need to be tightened with bolts to achieve a seal. Although this method has high reliability, it has the problems of cumbersome operation and slow connection speed. Especially in situations where frequent installation or replacement is required, it seriously affects work efficiency. Therefore, we propose a clamp-on float level gauge. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a clamp-on float level gauge, comprising a level gauge and a pipe. A connecting pipe is fixedly installed on the level gauge, and a mounting base is fixedly installed on the connecting pipe. A slot is provided on the connecting pipe, and the pipe is movably engaged with the connecting pipe through the slot. The mounting base is provided with a quick-release mechanism for pipe connection. The quick-release mechanism includes multiple sets of ring-shaped clamping plates distributed within the mounting base. Two sets of retaining rings are provided on the pipe, and the multiple sets of clamping plates can be engaged between the two sets of retaining rings. The multiple sets of clamping plates are rotatably connected to the mounting base through a mounting shaft. A handle is rotatably installed within the mounting base, and the handle is perpendicular to the mounting shaft. A limiting mechanism is also provided within the mounting base.

[0005] In some embodiments, the quick-release mechanism further includes a mounting ring rotatably mounted in the mounting base, a gear ring sleeved on the mounting ring, multiple sets of mounting shafts being distributed circumferentially around the mounting ring, multiple sets of mounting shafts being sleeved with first gears, multiple sets of first gears being meshed with the gear rings, multiple sets of mounting shafts being sleeved with first torsion springs, and the two ends of the multiple sets of first torsion springs being fixedly connected to the retaining plate and the mounting base, respectively.

[0006] In some embodiments, a first bevel gear is sleeved on the mounting shaft on the right, and a second bevel gear is sleeved on the handle. The first bevel gear and the second bevel gear are meshed together. The limiting mechanism includes two sets of check wheels symmetrically sleeved on the handle. The mounting base is provided with two sets of check claws that mesh with the check wheels. Both sets of check claws are rotatably connected to the mounting base through mounting rods. A second gear is sleeved on each of the two sets of mounting rods. Two sets of racks that mesh with the second gears are slidably installed in the mounting base. The two sets of racks are fixedly connected by a connecting bracket. Two sets of support rods are fixedly installed in the mounting base.

[0007] In some embodiments, a second torsion spring is sleeved on both sets of mounting rods, and the two ends of the second torsion spring are fixedly connected to the check pawl and the mounting base, respectively.

[0008] In some embodiments, the connecting frame is slidably sleeved with the support rod, and two sets of symmetrically distributed springs are sleeved on the support rod. The two ends of the two sets of springs are respectively fixedly connected to the connecting frame and the mounting base, and a plug is fixedly installed on the connecting frame.

[0009] In some embodiments, a plug rod corresponding to the plug block is fixedly installed in the mounting base, and two sets of symmetrically distributed plug brackets are sleeved on the plug rod, with both sets of plug brackets being movably engaged with the plug block.

[0010] In some embodiments, two sets of symmetrically distributed third torsion springs are sleeved on the insertion rod, and the two ends of the third torsion springs are fixedly connected to the insertion frame and the insertion rod, respectively.

[0011] This utility model has at least the following beneficial effects: 1. The movement of multiple ring-shaped clamping plates can be simultaneously controlled by rotating a single handle, enabling rapid engagement and disengagement between the pipeline and the level gauge connecting pipe. The rotation of the handle drives the rotation of a mounting shaft on one side through a bevel gear set. This mounting shaft, through the meshing of the first gear and the central gear ring, drives all mounting shafts to rotate synchronously, thus ensuring that all clamping plates can be consistently engaged or disengaged from the clamping ring grooves on the pipeline. This simplifies the traditional multi-bolt fastening operation into a single action, greatly improving installation and disassembly efficiency. It is particularly suitable for occasions requiring frequent maintenance or replacement, while ensuring the balance of multi-clamping plates and the reliability of the connection seal.

[0012] 2. Through ingenious linkage design, the quick-release mechanism ensures self-locking in non-operational states and ease of operation. Under normal conditions, the check pawl engages with the check wheel on the handle shaft under the action of the second torsion spring, effectively preventing the handle from reversing due to vibration or accidental contact, ensuring the stability and safety of the connection between the connecting pipe and the pipeline. When operation is required, pulling the connecting bracket moves the rack and drives the second gear to rotate, causing the mounting rod to disengage the check pawl from the check wheel, thereby releasing the lock on the handle. At the same time, the insert block on the connecting bracket inserts between the two sets of inserts and is locked in place, temporarily fixing the entire limiting mechanism in the released state. The operator can then freely rotate the handle to install and remove the pipeline. After the operation is completed, gently pulling the connecting bracket again disengages the insert block from the insert, and the components automatically reset under the action of the spring, and the limiting mechanism relocks the handle. By setting the limiting mechanism, both the reliability of the operation and the ease and smoothness of unlocking and locking operations are ensured. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the structural separation of the mounting base and the pipe in this utility model; Figure 3 This is a schematic diagram of the quick assembly / disassembly mechanism of this utility model; Figure 4 This is a schematic diagram of the limiting mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged view of the structure at point -B.

[0014] In the diagram: 1. Level gauge; 2. Connecting pipe; 3. Mounting base; 4. Pipeline; 5. Quick disassembly / assembly mechanism; 501. Mounting ring; 502. Gear ring; 503. Clamping plate; 504. Mounting shaft; 505. First gear; 506. First torsion spring; 507. Clamping ring; 508. Slot; 6. Handle; 7. First bevel gear; 8. Second bevel gear; 9. Limiting mechanism; 901. Check wheel; 902. Check pawl; 903. Mounting rod; 904. Second torsion spring; 905. Second gear; 906. Rack; 907. Connecting frame; 908. Support rod; 909. Spring; 910. Insert block; 911. Insert rod; 912. Insert bracket; 913. Third torsion spring. Detailed Implementation

[0015] 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.

[0016] Example 1: Please see Figure 1-3 This utility model provides a technical solution: a clamp-type float level gauge 1, including a level gauge 1 and a pipe 4. A connecting pipe 2 is fixedly installed on the level gauge 1, and a mounting base 3 is fixedly installed on the connecting pipe 2. A slot 508 is provided on the connecting pipe 2, and the pipe 4 is movably engaged with the connecting pipe 2 through the slot 508. The mounting base 3 is provided with a quick disassembly and assembly mechanism 5 for connecting the pipe 4. The quick disassembly and assembly mechanism 5 includes multiple sets of clamping plates 503 distributed in a ring within the mounting base 3. Two sets of retaining rings 507 are provided on the pipe 4, and the multiple sets of clamping plates 503 can be engaged between the two sets of retaining rings 507. The multiple sets of clamping plates 503 are rotatably connected to the mounting base 3 through a mounting shaft 504. A handle 6 is rotatably installed within the mounting base 3, and the handle 6 is perpendicular to the mounting shaft 504. A limiting mechanism 9 is provided within the mounting base 3. When the connecting pipe 2 needs to be connected, the operator only needs to rotate the handle 6 clockwise to drive the second bevel gear 8 fixed thereon to rotate. The second bevel gear 8 meshes with the first bevel gear 7 on the right mounting shaft 504, thereby driving the mounting shaft 504 to rotate. Since the mounting shaft 504 also has a first gear 505, and all first gears 505 mesh with the central gear ring 502, the rotation of a single mounting shaft 504 will synchronously drive all circumferentially distributed mounting shafts 504 to rotate together via the gear ring 502. The retaining plate 503 on the mounting shaft 504 then closes inward, precisely engaging between the two pre-set retaining rings 507 on the pipe 4, forming a strong axial constraint.

[0017] The quick-release mechanism 5 also includes a mounting ring 501 rotatably mounted within the mounting base 3. A gear ring 502 is fitted onto the mounting ring 501. Multiple sets of mounting shafts 504 are distributed in a ring around the mounting ring 501. Each set of mounting shafts 504 is fitted with a first gear 505, which meshes with the gear ring 502. Each set of mounting shafts 504 is fitted with a first torsion spring 506. The two ends of the first torsion springs 506 are fixedly connected to the clamping plate 503 and the mounting base 3, respectively. During this process, the first torsion springs 506 on the mounting shafts 504 are torsionally charged and store energy. When disassembly is required, the handle 6 is rotated in the opposite direction. All clamping plates 503 open outward under the synchronous drive of the gear ring 502, disengaging from the clamping ring 507 of the pipe 4. At this time, under the restoring force of the first torsion springs 506, the clamping plates 503 quickly return to the open state, and the pipe 4 can be easily pulled out. The entire process is fast, labor-saving, and highly synchronized.

[0018] Example 2: Please see Figure 4 , Figure 5 A first bevel gear 7 is sleeved on the right mounting shaft 504, and a second bevel gear 8 is sleeved on the handle 6. The first bevel gear 7 and the second bevel gear 8 are meshed together. The limiting mechanism 9 includes two sets of check wheels 901 symmetrically sleeved on the handle 6. The mounting base 3 is provided with two sets of check claws 902 that mesh with the check wheels 901. Both sets of check claws 902 are rotatably connected to the mounting base 3 through mounting rods 903. A second gear 905 is sleeved on both sets of mounting rods 903. Two sets of racks 906 that mesh with the second gears 905 are slidably installed in the mounting base 3. The two sets of racks 906 are fixedly connected by a connecting bracket 907. Two sets of support rods 908 are fixedly installed in the mounting base 3. A second torsion spring 904 is sleeved on each of the two sets of mounting rods 903. The two ends of the second torsion spring 904 are fixedly connected to the check pawl 902 and the mounting base 3, respectively. In the non-operating state, the two sets of check pawls 902 are always tightly locked into the tooth groove of the check wheel 901 on the handle 6 shaft under the preload of the second torsion spring 904, which effectively prevents the handle 6 from reversing due to equipment vibration or accidental contact, thereby avoiding the risk of the clamping plate 503 loosening.

[0019] The connecting frame 907 is slidably sleeved with the support rod 908. Two sets of symmetrically distributed springs 909 are sleeved on the support rod 908. The two ends of the two sets of springs 909 are fixedly connected to the connecting frame 907 and the mounting base 3, respectively. A plug block 910 is fixedly installed on the connecting frame 907. A plug rod 911 corresponding to the plug block 910 is fixedly installed in the mounting base 3. Two sets of symmetrically distributed insert brackets 912 are sleeved on the plug rod 911. Both sets of insert brackets 912 are movably engaged with the plug block 910. Two sets of symmetrically distributed third torsion springs 913 are sleeved on the plug rod 911. The two ends of the third torsion springs 913 are fixedly connected to the insert brackets 912 and the plug rod 911, respectively. When it is necessary to perform assembly and disassembly operations, the operator pulls the connecting frame 907 outward. The connecting frame 907 will drive the racks 906 on both sides to move linearly, driving the second gear 905 meshing with it to rotate. The rotation of the second gear 905 forces the mounting rod 903 to disengage the check pawl 902 from the check wheel 901, thus releasing the lock on the handle 6. At the same time, the insert block 910 fixed on the connecting bracket 907 will insert between the two sets of hinged brackets 912 and spread them apart. After the insert block 910 passes the bracket 912, the bracket 912 will quickly rebound under the action of the third torsion spring 913, locking the insert block 910, thereby temporarily fixing the entire limiting mechanism 9 in this unlocked position. At this time, the handle 6 can rotate freely. After the operation is completed, simply pull the connecting bracket 907 again to disengage the insert block 910 from the bracket 912. The connecting bracket 907 will then reset under the push of the spring 909, the rack 906 will then retract, the second gear 905 will rotate in the opposite direction, and the check pawl 902 will re-lock the check wheel 901 under the action of the second torsion spring 904, and the handle 6 will be reliably locked again.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamp-on float level gauge (1), comprising a level gauge (1) and a pipe (4), characterized in that: A connecting pipe (2) is fixedly installed on the level gauge (1), and a mounting base (3) is fixedly installed on the connecting pipe (2). A slot (508) is provided on the connecting pipe (2). The pipe (4) is movably connected to the connecting pipe (2) through the slot (508). A quick disassembly and assembly mechanism (5) for connecting the pipe (4) is provided in the mounting base (3). The quick disassembly and assembly mechanism (5) includes multiple sets of clamping plates (503) distributed in a ring in the mounting base (3). Two sets of retaining rings (507) are provided on the pipe (4). Multiple sets of clamping plates (503) can be clamped between the two sets of retaining rings (507). Multiple sets of clamping plates (503) are rotatably connected to the mounting base (3) through the mounting shaft (504). A handle (6) is rotatably installed in the mounting base (3). The handle (6) is perpendicular to the mounting shaft (504). A limiting mechanism (9) is provided in the mounting base (3).

2. The clamp-on float level gauge according to claim 1, characterized in that: The quick disassembly and assembly mechanism (5) also includes an installation ring (501) rotatably installed in the mounting base (3). A toothed ring (502) is sleeved on the installation ring (501). Multiple sets of installation shafts (504) are distributed in a ring around the installation ring (501). A first gear (505) is sleeved on each of the multiple sets of installation shafts (504). The multiple sets of first gears (505) are meshed with the toothed ring (502). A first torsion spring (506) is sleeved on each of the multiple sets of installation shafts (504). The two ends of the multiple sets of first torsion springs (506) are fixedly connected to the clamping plate (503) and the mounting base (3) respectively.

3. The clamp-on float level gauge according to claim 1, characterized in that: A first bevel gear (7) is sleeved on the mounting shaft (504) on the right side, and a second bevel gear (8) is sleeved on the handle (6). The first bevel gear (7) and the second bevel gear (8) are meshed together. The limiting mechanism (9) includes two sets of check wheels (901) symmetrically sleeved on the handle (6). The mounting base (3) is provided with two sets of check claws (902) that mesh with the check wheels (901). Both sets of check claws (902) are rotatably connected to the mounting base (3) through mounting rods (903). A second gear (905) is sleeved on both sets of mounting rods (903). Two sets of racks (906) that mesh with the second gears (905) are slidably installed in the mounting base (3). The two sets of racks (906) are fixedly connected to each other through a connecting frame (907). Two sets of support rods (908) are fixedly installed in the mounting base (3).

4. The clamp-on float level gauge according to claim 3, characterized in that: Both sets of mounting rods (903) are fitted with a second torsion spring (904), and the two ends of the second torsion spring (904) are fixedly connected to the check pawl (902) and the mounting base (3), respectively.

5. The clamp-on float level gauge according to claim 3, characterized in that: The connecting frame (907) is slidably sleeved with the support rod (908). Two sets of symmetrically distributed springs (909) are sleeved on the support rod (908). The two ends of the two sets of springs (909) are fixedly connected to the connecting frame (907) and the mounting base (3) respectively. The connecting frame (907) is fixedly installed with a plug (910).

6. The clamp-on float level gauge according to claim 1, characterized in that: The mounting base (3) is fixedly installed with a plug rod (911) corresponding to the plug block (910). Two sets of symmetrically distributed plug brackets (912) are sleeved on the plug rod (911), and both sets of plug brackets (912) are movably engaged with the plug block (910).

7. The clamp-on float level gauge according to claim 6, characterized in that: Two sets of symmetrically distributed third torsion springs (913) are sleeved on the insertion rod (911), and the two ends of the third torsion springs (913) are fixedly connected to the insertion bracket (912) and the insertion rod (911) respectively.