Durable float water level gauge

By designing the transmission and fixing mechanisms, the problems of inaccurate measurement and short service life of float level gauges when water level changes drastically have been solved, achieving higher stability and durability.

CN224202535UActive Publication Date: 2026-05-05NANJING NANYU SENSING INSTRUMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING NANYU SENSING INSTRUMENT CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing float level gauges are prone to wire rope deviation or breakage when water levels fluctuate drastically, resulting in inaccurate measurement data and a short service life.

Method used

The system employs a combination of transmission and fixing mechanisms. Through the design of components such as sprockets, chains, and protective plates, the main body of the water level gauge can move flexibly with changes in water level. The fixing mechanism also enhances connection stability and prevents the gauge from falling off.

Benefits of technology

This improves the service life of the water level gauge body, ensures the accuracy of measurement data, and reduces chain breakage caused by external impacts and wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water level monitoring, in particular to a durable float water level gauge which comprises a water level receiver, one end of the water level receiver is connected with a connecting shaft in a rotating mode, and a transmission mechanism connected with the outer wall of the connecting shaft in a sleeved mode is arranged at one end of the water level receiver. A plurality of fixing mechanisms are fixedly welded to the bottom end of the transmission mechanism, and the bottom ends of the fixing mechanisms are fixedly connected with a water level gauge body and a balance block correspondingly and penetrate into the fixing mechanisms. According to the utility model, the water level gauge main body can flexibly move along with the change of the water level during use through the mutual matching among the internal parts of the transmission mechanism, and the water level gauge main body can flexibly move along with the change of the water level during use through the mutual matching among the internal parts of the fixing mechanism; and the problem that the connection between the water level gauge main body and the chain is broken due to collision and abrasion of sharp objects in water flow is solved, so that the service life of the water level gauge main body is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of water level monitoring technology, specifically to a durable float water level gauge. Background Technology

[0002] The float level gauge is an independent water level observation and measurement instrument. It has good measurement accuracy and working stability in environments with large water level variability and severe surges, and is particularly suitable for use in hydrological stations, reservoir stations, dam stations, telemetry stations and hydropower stations.

[0003] Currently, there are various types of float level gauges available. However, when these float level gauges are used, the float level gauge is connected to the fixed frame and the rotating wheel via a steel wire rope. When the water level changes drastically, the steel wire rope is prone to rotating and deviating, falling off the rotating wheel, affecting the test results and causing inaccurate measurement data. Furthermore, during long-term use, the steel wire at the connection point with the float will repeatedly come into contact with the water surface, and the continuous flow of the water will bring some sharp impurities into contact with and wear the surface of the steel wire rope, causing the steel wire rope to break after a long period of use, resulting in the loss of the float level gauge connected to the bottom of the steel wire rope.

[0004] Therefore, it is necessary to propose a durable float level gauge to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a durable float level gauge. Through the cooperation between the internal parts of the transmission mechanism, the main body of the level gauge can move flexibly with changes in water level during use. Through the cooperation between the internal parts of the fixing mechanism, the service life of the main body of the level gauge can be improved. This solves the problem in the prior art where the continuous flow of water brings some sharp impurities into contact with the surface of the wire rope, causing wear and tear, which leads to the wire rope breaking after a long period of use and the loss of the float level gauge connected to the bottom of the wire rope.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a durable float level gauge, including a level receiver, one end of which is rotatably connected to a connecting shaft, and one end of which is provided with a transmission mechanism sleeved with the outer wall of the connecting shaft. The bottom end of the transmission mechanism is welded and fixed with multiple fixing mechanisms, and the bottom ends of the multiple fixing mechanisms are respectively connected and fixed with the level gauge body and the balance block, and penetrate into the interior of the fixing mechanism.

[0007] Preferably, the transmission mechanism includes a sprocket, which is rotatably connected to the outer wall of a connecting shaft. Support rods are installed on both sides of the connecting shaft and are located at one end of the water level receiver. A chain is sleeved on the outer wall of the sprocket, and a protective cover is sleeved on the outer wall of the chain, located above the sprocket. A protective plate is fixedly connected to the end of the support rod away from the water level receiver and is located at the bottom end of the protective cover, and is sleeved with the outer wall of the chain. A rotating shaft is rotatably connected to both ends of the outer wall of the protective plate. A torsion spring is sleeved on the outer wall of the rotating shaft, and a locking pin is fixedly connected to the end of the rotating shaft away from the protective plate and extends through to the outer wall of the protective cover.

[0008] Preferably, the fixing mechanism includes a fixing block, which is welded and fixed to the bottom end of the chain. A threaded post is connected and fixed to the top end of the water level gauge body and the balance block, and extends into the interior of the fixing block. A fixing bolt is installed on one side of the fixing block and extends into the interior of the fixing block. A connecting plate is slidably connected inside the fixing block and located on one side of the fixing bolt. A contraction spring is connected and fixed to the side of the connecting plate away from the fixing bolt. Connecting blocks are connected and fixed to both ends of the connecting plate and slidably connected inside the fixing block. A fixing post is slidably connected inside the fixing block and extends through the fixing block to both ends of the fixing bolt, and is located on the side of the connecting block away from the contraction spring. A return spring is connected and fixed to the end of the fixing post away from the fixing bolt.

[0009] Preferably, the sprocket is rotatably connected to the connecting shaft via a bearing, the chain meshes with the sprocket via a chain groove, the two ends of the torsion spring are respectively connected and fixed to the protective cover and the rotating shaft, and the outer wall of the protective cover is provided with a groove that matches the locking post.

[0010] Preferably, the outer wall of the threaded column is threaded, the inner wall of the fixing block is provided with a threaded groove that matches the threaded column and the fixing bolt, and a limiting groove that matches the fixing bolt is provided on one side of the threaded column.

[0011] Preferably, the fixing block has a sliding groove inside that matches the connecting block, the connecting block has a chamfer on the side near the fixing post, the fixing post has a tapered groove on the side near the chamfer of the connecting block, the fixing bolt has fixing grooves at both ends that match the fixing post, and the fixing post has an arc surface at the end near the fixing bolt.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] By rotating the threaded post at the top of the water level gauge body and the balance block, the threaded post is connected and fixed to the fixed block through the thread. Then, by rotating the fixing bolt, the fixing bolt passes through the threaded post and is connected and fixed to the fixed block. The fixing bolt passes through the interior of the fixed block and presses against the connecting plate. The connecting plate compresses and contracts the spring, causing the connecting plate to move and move the connecting block away from one side of the fixing post, releasing the compression on the fixing post. This releases the compression on the return spring, and the return spring returns to its original position, pushing the fixing post to both ends of the fixing bolt, thus fixing the position of the fixing bolt. This allows the rotating water level gauge body and the balance block to be connected and fixed to the chain through the fixing block, reducing the problem of water level gauge body wear and breakage due to external impacts and chain connections, and improving the service life of the water level gauge body.

[0014] The water level gauge body is affected by changes in water level height, causing the main body to rotate via a chain that drives a sprocket. The rotation of the sprocket moves the chain, allowing the water level gauge body to adjust according to the water level, resulting in more accurate test data. Simultaneously, the protective plate and cover limit the chain's position, reducing the risk of the chain separating from the sprocket due to wobbling at the bottom. Rotating the shaft compresses a torsion spring, causing the shaft to rotate and move a locking pin from the outer wall of the protective cover, releasing the connection between the protective cover and the protective plate. This allows the protective cover to be disassembled and separated from the protective plate. The operator can then use tools to re-engage the fallen chain with the sprocket through the chain groove, reducing the risk of inaccurate water level gauge readings due to the chain detaching from the sprocket during use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the fixing block and the threaded column of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the fixing block of this utility model;

[0019] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Water level receiver; 101. Connecting shaft; 2. Transmission mechanism; 201. Sprocket; 202. Support rod; 203. Chain; 204. Protective plate; 205. Protective cover; 206. Rotating shaft; 207. Torsion spring; 208. Locking post; 3. Fixing mechanism; 301. Fixing block; 302. Threaded post; 303. Fixing bolt; 304. Connecting plate; 305. Contraction spring; 306. Connecting block; 307. Fixing post; 308. Return spring; 4. Water level gauge body; 5. Balance block. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-4 The durable float level gauge shown includes a level receiver 1, one end of which is rotatably connected to a connecting shaft 101. A transmission mechanism 2, sleeved on the outer wall of the connecting shaft 101, is provided at one end of the level receiver 1. Multiple fixing mechanisms 3 are welded and fixed to the bottom of the transmission mechanism 2. The bottom ends of the fixing mechanisms 3 are respectively connected and fixed to the level gauge body 4 and a balance block 5, extending into the interior of the fixing mechanisms 3. Through the mutual cooperation between the internal parts of the transmission mechanism 2, the level gauge body 4 can move flexibly with changes in water level during use. Through the mutual cooperation between the internal parts of the fixing mechanisms 3, the connection between the level gauge body 4 and the internal parts of the transmission mechanism 2 is fixed, preventing the level gauge body 4 from detaching from the internal connecting parts of the transmission mechanism 2 due to prolonged use, thus extending the service life of the level gauge body 4.

[0024] Refer to the instruction manual appendix Figure 1-4 The transmission mechanism 2 includes a sprocket 201, which is rotatably connected to the outer wall of the connecting shaft 101. Support rods 202 are mounted on both sides of the connecting shaft 101 and are located at one end of the water level receiver 1. A chain 203 is sleeved on the outer wall of the sprocket 201, and a protective cover 205 is sleeved on the outer wall of the chain 203, located above the sprocket 201. A protective plate 204 is fixedly connected to the end of the support rod 202 away from the water level receiver 1, located at the bottom end of the protective cover 205, and sleeved with the outer wall of the chain 203. The outer wall is rotatably connected to two ends of a rotating shaft 206. A torsion spring 207 is sleeved on the outer wall of the rotating shaft 206. A locking pin 208 is fixed to the end of the rotating shaft 206 away from the protective plate 204 and extends through to the outer wall of the protective cover 205. Through the mutual cooperation between the internal parts of the transmission mechanism 2, the water level gauge body 4 can move flexibly with the water level change via the chain 203 during use. With the mutual cooperation between the protective cover 205, the protective plate 204 and the sprocket 201, the chain 203 will not fall off the sprocket 201.

[0025] Refer to the instruction manual appendix Figure 1-4 The fixing mechanism 3 includes a fixing block 301, which is welded and fixed to the bottom end of the chain 203. A threaded post 302 is connected and fixed to the top of the water level gauge body 4 and the balance block 5, extending into the interior of the fixing block 301. A fixing bolt 303 is installed on one side of the fixing block 301, extending into the interior of the fixing block 301. A connecting plate 304 is slidably connected inside the fixing block 301, located on one side of the fixing bolt 303. A compression spring 305 is connected and fixed to the side of the connecting plate 304 away from the fixing bolt 303. Connecting blocks 305 are connected and fixed to both ends of the connecting plate 304. 06, and is slidably connected to the inside of the fixing block 301. The fixing block 301 is slidably connected to the two ends of the fixing block 301 and the fixing bolt 303, and is located on the side of the connecting block 306 away from the contraction spring 305. The end of the fixing column 307 away from the fixing bolt 303 is connected and fixed to the return spring 308. Through the mutual cooperation between the internal parts of the fixing mechanism 3, the water level gauge body 4 will not fall off the internal connecting parts of the transmission mechanism 2 due to long-term use, thus improving the service life of the water level gauge body 4.

[0026] Refer to the instruction manual appendix Figure 1-4 The sprocket 201 is rotatably connected to the connecting shaft 101 via a bearing. The chain 203 meshes with the sprocket 201 via a chain groove. The two ends of the torsion spring 207 are respectively connected and fixed to the protective cover 205 and the rotating shaft 206. The outer wall of the protective cover 205 has a groove that matches the locking post 208. The chain 203 meshes with the sprocket 201 via the chain groove, which facilitates the rotation of the chain 203 on the sprocket 201, so that the chain 203 drives the water level gauge body 4 to move according to the water level height.

[0027] Refer to the instruction manual appendix Figure 1-4 The outer wall of the threaded post 302 is threaded, and the inner wall of the fixing block 301 is provided with a threaded groove that matches the threaded post 302 and the fixing bolt 303. One side of the threaded post 302 is provided with a limiting groove that matches the fixing bolt 303. The limiting groove on one side of the threaded post 302 that matches the fixing bolt 303 facilitates the fixing bolt 303 to pass through the fixing block 301 into the threaded post 302, so that the fixing block 301 and the threaded post 302 are connected and locked.

[0028] Refer to the instruction manual appendix Figure 1-4The fixing block 301 has a sliding groove inside that matches the connecting block 306. The connecting block 306 has a chamfer on the side near the fixing post 307. The fixing post 307 has a tapered groove on the side near the chamfer of the connecting block 306. The fixing bolt 303 has fixing grooves at both ends that match the fixing post 307. The fixing post 307 has an arc surface at the end near the fixing bolt 303. The arc surface at the end of the fixing post 307 makes it easier for workers to use a wrench to rotate the fixing bolt 303 and press the fixing post 307 to move, reducing the loosening of the fixing bolt 303 due to external factors.

[0029] The working principle of this practical application is as follows:

[0030] Refer to the instruction manual appendix Figure 1-4 Rotate the threaded post 302 at the top of the water level gauge body 4 and the balance block 5. The threaded post 302 is connected and fixed to the fixing block 301 through the thread. Then rotate the fixing bolt 303. The fixing bolt 303 passes through the threaded post 302 through the thread and is connected and fixed to the fixing block 301. The fixing bolt 303 passes through the inside of the fixing block 301 and squeezes the connecting plate 304. The connecting plate 304 squeezes the contraction spring 305 and moves. The movement of the connecting plate 304 drives the connecting block 306 to move and move out from one side of the fixing post 307, releasing the compression on the fixing post 307. This releases the compression on the return spring 308. The return spring 308 returns and pushes the fixing post 307 to both ends of the fixing bolt 303, completing the position fixation of the fixing bolt 303. This allows the rotating water level gauge body 4 and the balance block 5 to be connected and fixed to the chain 203 through the fixing block 301, reducing the problem of the water level gauge body 4 breaking due to external collisions and wear, and improving the service life of the water level gauge body 4.

[0031] Refer to the instruction manual appendix Figure 1-4 The water level gauge body 4 is affected by changes in water level height, causing the water level gauge body 4 to drive the sprocket 201 to rotate via the chain 203. The rotation of the sprocket 201 causes the chain 203 to move, thus allowing the chain 203 to adjust the water level gauge body 4 according to the water level height, making the test data more accurate. At the same time, the protective plate 204 and the protective cover 205 limit the position of the chain 203, reducing the likelihood of the chain 203 separating from the sprocket 201 due to shaking at the bottom of the chain 203 when it moves on the sprocket 201. Simultaneously, the rotating shaft 2... 06. The rotating shaft 206 compresses the torsion spring 207 to retract and rotate, causing the rotating shaft 206 to rotate and move the adjusting pin 208 out of the outer wall of the protective cover 205, releasing the connection lock between the protective cover 205 and the protective plate 204, so that the protective cover 205 can be disassembled and separated from the protective plate 204. Then, the operator can use tools to make the fallen chain 203 re-engage with the sprocket 201 through the chain groove, which can reduce the problem of inaccurate monitoring data of the water level gauge body 4 caused by the chain 203 falling off the sprocket 201 during use.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A durable float level gauge, comprising a level receiver (1), characterized in that: One end of the water level receiver (1) is rotatably connected to a connecting shaft (101). One end of the water level receiver (1) is provided with a transmission mechanism (2) that is sleeved on the outer wall of the connecting shaft (101). Multiple fixing mechanisms (3) are welded and fixed to the bottom end of the transmission mechanism (2). The bottom ends of the multiple fixing mechanisms (3) are respectively connected and fixed to the water level gauge body (4) and the balance block (5), and penetrate into the interior of the fixing mechanism (3).

2. The durable float level gauge according to claim 1, characterized in that: The transmission mechanism (2) includes a sprocket (201), which is rotatably connected to the outer wall of the connecting shaft (101). Support rods (202) are installed on both sides of the connecting shaft (101) and are located at one end of the water level receiver (1). A chain (203) is sleeved on the outer wall of the sprocket (201), and a protective cover (205) is sleeved on the outer wall of the chain (203) above the sprocket (201). The support rods (202) are located away from the water level. One end of the receiver (1) is connected to a protective plate (204) and is located at the bottom of the protective cover (205), and is sleeved with the outer wall of the chain (203). The two ends of the outer wall of the protective plate (204) are rotatably connected to a rotating shaft (206). The outer wall of the rotating shaft (206) is sleeved with a torsion spring (207). The end of the rotating shaft (206) away from the protective plate (204) is connected to a locking post (208) and extends through to the outer wall of the protective cover (205).

3. A durable float level gauge according to claim 2, characterized in that: The fixing mechanism (3) includes a fixing block (301), which is welded and fixed to the bottom end of the chain (203). A threaded post (302) is connected and fixed to the top of the water level gauge body (4) and the balance block (5), extending into the interior of the fixing block (301). A fixing bolt (303) is installed on one side of the fixing block (301), extending into the interior of the fixing block (301). A connecting plate (304) is slidably connected inside the fixing block (301) and located on one side of the fixing bolt (303). A retraction spring (305) is fixedly connected to the side away from the fixing bolt (303). Connecting blocks (306) are fixedly connected to both ends of the connecting plate (304) and are slidably connected to the inside of the fixing block (301). A fixing post (307) is slidably connected inside the fixing block (301) and passes through the fixing block (301) to both ends of the fixing bolt (303), and is located on the side of the connecting block (306) away from the retraction spring (305). A return spring (308) is fixedly connected to the end of the fixing post (307) away from the fixing bolt (303).

4. A durable float level gauge according to claim 2, characterized in that: The sprocket (201) is rotatably connected to the connecting shaft (101) via a bearing. The chain (203) meshes with the sprocket (201) via a chain groove. The two ends of the torsion spring (207) are respectively connected and fixed to the protective cover (205) and the rotating shaft (206). The outer wall of the protective cover (205) is provided with a groove that matches the locking post (208).

5. A durable float level gauge according to claim 3, characterized in that: The outer wall of the threaded column (302) is threaded, and the inner wall of the fixing block (301) is provided with a threaded groove that matches the threaded column (302) and the fixing bolt (303). A limiting groove that matches the fixing bolt (303) is provided on one side of the threaded column (302).

6. A durable float level gauge according to claim 3, characterized in that: The fixing block (301) has a sliding groove inside that matches the connecting block (306). The connecting block (306) has a chamfer on the side near the fixing post (307). The fixing post (307) has a tapered groove on the side near the chamfer of the connecting block (306). The fixing bolt (303) has fixing grooves at both ends that match the fixing post (307). The fixing post (307) has an arc surface at the end near the fixing bolt (303).