Detachable liquid seal non-magnetic remote water meter

Abstract

The utility model belongs to the technical field of liquid seal non -magnetic remote water meter, specifically is a detachable liquid seal non -magnetic remote water meter, including mechanical base watch body, the top of mechanical base watch body is fixedly arranged with liquid seal counter, the top of liquid seal counter is fixedly arranged with quick positioning dismounting assembly, the top of mechanical base watch body is provided with non -magnetic sensor casing through quick positioning dismounting assembly. The utility model discloses a quick positioning dismounting structure, realizes the accurate alignment of non -magnetic sensor casing and tool -free quick mounting and quick dismounting. Automatic locking when installing, firm and reliable, when dismounting, can be released by one -key only by rotating the operating knob, and is completed by one hand. The structure does not destroy the sealing property of liquid seal counter, guarantees the protection level, significantly improves the installation accuracy, operation and maintenance efficiency and product reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquid-sealed non-magnetic remote water meter, specifically a detachable liquid-sealed non-magnetic remote water meter. Background Technology

[0002] With the development of smart water management, remote water meters are widely used in remote meter reading systems. To achieve data collection, a non-magnetic sensor module is usually installed on the mechanical water meter to read counter information in a non-contact manner. This module needs to be precisely aligned with the base meter and has good sealing and maintainability to adapt to long-term outdoor operating environments.

[0003] Currently, most non-magnetic sensors in existing remote water meters use screw fixing or snap-on installation structures.

[0004] Existing screw fixing requires tools, making disassembly and assembly cumbersome. Repeated tightening can easily cause the housing to strip or the sealing ring to deform, compromising the sealing performance of the liquid-sealed counter. Snap-on structures, on the other hand, cannot guarantee circumferential positioning accuracy, and the sensor is prone to displacement, affecting the accuracy of signal acquisition. Therefore, a new utility model is proposed to address these problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a detachable liquid-sealed non-magnetic remote water meter.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The detachable liquid-sealed non-magnetic remote water meter of this utility model includes a mechanical base meter body, a liquid-sealed counter is fixedly installed at the top of the mechanical base meter body, a quick positioning and disassembly assembly is fixedly installed at the top of the liquid-sealed counter, and a non-magnetic sensor housing is installed above the mechanical base meter body through the quick positioning and disassembly assembly. The non-magnetic sensor housing is quickly positioned, installed, and disassembled through the quick positioning and disassembly assembly.

[0007] Preferably, the quick positioning and disassembly assembly includes a mounting base, the bottom end of which is fixedly disposed on the top end of the liquid seal counter, and the top end of the mounting base is fixedly disposed with several positioning bosses, and a positioning groove is provided at the center of the top end of the mounting base.

[0008] Preferably, a limiting groove is provided at the bottom of the positioning groove, the limiting groove is an inverted platform, a control cavity is provided inside the non-magnetic sensor housing, and a support rod is fixedly provided at the bottom of the non-magnetic sensor housing.

[0009] Preferably, a limit block is fixedly installed at the bottom of the support rod, a pipe is opened inside the support rod, the top of the pipe passes through the non-magnetic sensor housing and communicates with the control cavity, and the limit block is an inverted platform.

[0010] Preferably, the limiting block is movably disposed at the bottom of the limiting groove, and a number of limiting spring pieces are provided on the outer edge of the top of the limiting block, with the top of the limiting spring pieces movably abutting against the top of the inner part of the limiting groove.

[0011] Preferably, a control rope is fixedly installed on the inner side of the limiting spring, and a hole is opened on the outer side of the bottom end of the support rod. The edge of the hole is rounded. One end of the control rope passes through the hole and extends into the interior of the control cavity through a pipe.

[0012] Preferably, a rotating rod is provided inside the control cavity, a winding reel is fixedly provided on the outside of the rotating rod, one end of the control rope is fixedly connected to the winding reel, and a torsion spring bearing is fixedly provided on one end of the rotating rod.

[0013] Preferably, one end of the rotating rod is rotatably mounted inside the control cavity via a torsion spring bearing, and the other end of the rotating rod passes through the non-magnetic sensor housing and extends to the outside. A rotary knob is fixedly mounted on the other end of the rotating rod, and several anti-slip textures are provided on the outer side of the rotary knob.

[0014] The beneficial effects of this utility model are: 1. This utility model provides a detachable liquid-sealed non-magnetic remote water meter. By setting up a quick positioning and disassembly component, the non-magnetic sensor housing can achieve accurate positioning and tool-free quick assembly and disassembly, which has significant beneficial effects. The component adopts a dual axial and circumferential guiding structure to ensure that the sensor housing is automatically aligned with the signal acquisition position of the counter during installation, avoiding offset and ensuring the accuracy of data reading.

[0015] 2. This utility model provides a detachable liquid-sealed non-magnetic remote water meter. Simultaneously, through the inverted platform body and elastic limiting structure, it automatically locks after the housing is pressed into place, eliminating the need for screws or clips. The connection is firm, vibration-resistant, and prevents detachment, making it suitable for complex working environments. During disassembly, the user only needs to rotate the external operating button to simultaneously release all locking points, achieving one-handed, quick, and smooth disassembly without special tools, significantly improving on-site maintenance efficiency. After operation, the built-in torsion spring mechanism automatically resets, preparing for the next installation and preventing improper installation due to human error. Furthermore, the entire connection method is a non-destructive assembly, preserving the sealing structure of the liquid-sealed counter, effectively maintaining the water meter's original high protection level and long-term sealing performance, extending its service life. In summary, this design significantly improves the ease of installation, maintenance efficiency, and overall reliability of smart water meters while ensuring metering reliability. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a perspective view of the mounting base structure in this utility model; Figure 3 This is a three-dimensional cross-sectional view of the positioning groove structure in this utility model; Figure 4 This is a three-dimensional view of the overall structure of the non-magnetic sensor housing in this utility model; Figure 5 This is a structural schematic diagram of the quick positioning and disassembly component in this utility model.

[0017] Legend: 1. Mechanical base body; 2. Liquid-sealed counter; 3. Quick positioning and disassembly assembly; 301. Mounting base; 302. Positioning boss; 303. Positioning groove; 304. Limiting groove; 305. Control cavity; 306. Support rod; 307. Limiting block; 308. Pipe; 309. Limiting spring; 310. Control rope; 311. Hole; 312. Rotating rod; 313. Winding reel; 314. Torsion spring bearing; 315. Rotary knob; 316. Anti-slip texture; 4. Non-magnetic sensor housing. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1-5 This utility model provides a detachable liquid-sealed non-magnetic remote water meter, including a mechanical base meter body 1, a liquid-sealed counter 2, a quick positioning and disassembly assembly 3, and a non-magnetic sensor housing 4. The mechanical base meter body 1 is the mechanical metering part of a conventional rotary vane or screw vane water meter, with an impeller and gear transmission mechanism inside for sensing water flow and driving the counter to rotate. The liquid-sealed counter 2 is fixedly installed on the top of the mechanical base meter body 1. The liquid-sealed counter 2 is filled with a transparent inert liquid (such as silicone oil) to completely seal the digits in the liquid, effectively preventing external moisture and dust from entering, ensuring clear and long-term stable readings.

[0021] A quick positioning and disassembly assembly 3 is fixedly installed at the top of the liquid-sealed counter 2. The assembly includes a disc-shaped mounting base 301, the bottom of which is firmly connected to the top of the liquid-sealed counter 2 by screws or adhesive. Three positioning protrusions 302 are evenly distributed around the top of the mounting base 301, which are used to cooperate with the corresponding grooves on the bottom of the non-magnetic sensor housing 4 to achieve precise circumferential positioning and prevent sensor deflection from affecting signal acquisition accuracy. At the same time, a circular positioning groove 303 is provided at the center of the top of the mounting base 301 to guide the non-magnetic sensor housing 4 to be vertically aligned and installed.

[0022] A limiting groove 304 is further formed at the center of the bottom of the positioning groove 303. The limiting groove 304 has an inverted truncated pyramidal structure (i.e., smaller at the top and larger at the bottom), and its inner wall has an inclined guide surface. Correspondingly, a support rod 306 is fixedly installed at the center of the bottom end of the non-magnetic sensor housing 4. The bottom end of the support rod 306 is connected to a limiting block 307. The limiting block 307 also has an inverted truncated pyramidal structure, and its shape matches the limiting groove 304. Several circumferential features are provided on the outer edge of the top of the limiting block 307. Four (e.g., four) elastic metal limiting springs 309 are used. When the non-magnetic sensor housing 4 is installed downwards, the limiting block 307 is inserted into the limiting groove 304. The limiting springs 309 are first compressed and retracted inwards under the action of the inclined surface of the inverted platform. After the limiting block 307 is fully in place, the limiting springs 309 open outwards under their own elastic force, and their top end abuts against the upper edge step of the limiting groove 304, thereby achieving reliable mechanical locking and preventing the sensor housing from accidentally falling off.

[0023] To achieve rapid unlocking, a flexible control rope 310 is fixedly connected to the inner side of each limiting spring 309. A pipe 308 is axially oriented inside the support rod 306, and a hole 311 is formed on the outer side of its bottom end. The edge of the hole 311 is rounded to prevent wear on the control rope 310. One end of the control rope 310 passes through the hole 311 and extends upward through the pipe 308, eventually entering the control cavity 305 inside the non-magnetic sensor housing 4. A rotating rod 312 is provided inside the control cavity 305, and a winding reel 3 is fixedly sleeved on the rotating rod 312. 13. The free ends of each control rope 310 are wound and fixed on the reel 313. One end of the rotating rod 312 is rotatably mounted on one side wall of the control cavity 305 through the torsion spring bearing 314. The torsion spring bearing 314 keeps the rotating rod 312 in the released position in its natural state, ensuring that the limit spring 309 is always locked. The other end of the rotating rod 312 passes through the side wall of the non-magnetic sensor housing 4, and a rotary knob 315 is fixedly installed on its outer end. Several anti-slip textures 316 are provided on the outer circumference of the rotary knob 315 to facilitate the user's finger operation.

[0024] When it is necessary to maintain, replace or calibrate the non-magnetic sensor housing 4 during operation, the user can quickly disassemble it by manual operation without the need for any tools. Specifically, the user first holds the rotary knob 315 located on the side of the non-magnetic sensor housing 4 with his thumb and forefinger. The rotary knob 315 has anti-slip texture 316 on its outer periphery, which facilitates the application of force and prevents slippage. Then, the user smoothly rotates the rotary knob 315 in a preset direction (usually clockwise, depending on the winding direction of the control rope 310 on the reel 313). The rotation action is directly transmitted to the reel 312 through its fixed connection with the rotating rod 312, causing it to rotate around the axis in the control cavity 305. Since the reel 313 is coaxially fixed on the rotating rod 312, it rotates synchronously with the rotating rod 312 and begins to wind up the control rope 310 wound around its outer edge.

[0025] One end of the control rope 310 is securely connected to the reel 313, and the other end passes sequentially through the pipe 308 inside the support rod 306 and the hole 311 at the bottom, finally connecting to the inner side of the limiting spring 309. As the reel 313 winds up, the control rope 310 is gradually tightened, and the tension is transmitted axially to each limiting spring 309. The limiting spring 309 is made of a high-elasticity stainless steel sheet, which initially opens outward due to its own elasticity, with its top tightly abutting against the... At the upper edge step of the limiting groove 304, the limiting block 307 of the inverted platform structure is firmly locked at the bottom of the limiting groove 304, realizing the stable installation of the non-magnetic sensor housing 4. Under the continuous tension of the control rope 310, the limiting spring 309 overcomes the elastic deformation resistance and gradually retracts towards the central axis of the support rod 306. When the rotary knob 315 is rotated to the set angle, the limiting spring 309 completely disengages from the upper edge step of the limiting groove 304, and the mechanical locking state is released.

[0026] At this time, the limit block 307 is only constrained by gravity and slight friction. The user can easily lift the entire non-magnetic sensor housing 4 vertically upward to achieve quick disassembly. The whole process is smooth and effortless, and will not disturb the sealing structure of the liquid-sealed counter 2, effectively ensuring the integrity of the metering environment of the water meter base.

[0027] After disassembly, if the user releases the rotary knob 315, the torsion spring bearing 314 pre-assembled at one end of the rotating rod 312 immediately releases the stored elastic potential energy, generating a reverse torque, driving the rotating rod 312 to automatically rotate back to the initial position; the winding reel 313 then reverses, slowly releasing the previously wound control rope 310; after the tension of the control rope 310 decreases, the limiting spring 309 quickly returns to the outward opening state under the elasticity of its own material, and is back in the locking position. This automatic reset mechanism ensures that the limiting mechanism is in a ready state before each installation, without the need for manual intervention. When installing the non-magnetic sensor housing 4 next time, simply align it with the positioning boss 302 and the positioning groove 303 and press it down vertically. The limiting block 307 will then smoothly slide into the limiting groove 304. Under the guidance of the inclined surface of the inverted platform, the limiting spring 309 is triggered to automatically open and lock into the upper edge of the limiting groove 304, achieving tool-free quick installation with "one-plug-and-lock".

[0028] Working Principle: This utility model, by setting up a quick positioning and disassembly component 3, enables the non-magnetic sensor housing 4 to achieve precise positioning and tool-free quick assembly and disassembly, thereby bringing several significant benefits. First, the mounting base 301 in the quick positioning and disassembly component 3 has several positioning protrusions 302 at its top, which, together with the positioning groove 303 set in the center, allow the non-magnetic sensor housing 4 to be aligned visually or tactilely during installation, achieving dual guidance in both the circumferential and axial directions. This structure effectively avoids the sensor sampling position offset caused by angular deviation in the traditional screw fixing method, thereby ensuring that the non-magnetic sensing module is always aligned with the digit wheel or transmission gear of the liquid-sealed counter 2, ensuring the accuracy and stability of signal acquisition.

[0029] Secondly, both the limiting block 307 and the limiting groove 304 adopt an inverted platform structure design. With the elastic tension of the limiting spring 309, they automatically form a mechanical self-lock after the non-magnetic sensor housing 4 is pressed into place. They can be firmly connected without additional fasteners. This locking method is vibration resistant and anti-loosening, and is suitable for water flow impact or external vibration environments commonly found in water supply networks, which significantly improves the long-term reliability of the product.

[0030] Furthermore, through the linkage unlocking mechanism consisting of the rotating rod 312, the winding reel 313, the control rope 310, and the torsion spring bearing 314 set in the control cavity 305, the user only needs to rotate the exposed rotating knob 315 to simultaneously wind and unwind multiple control ropes 310, thereby releasing the locking state of all limit springs 309 at once. This enables one-handed, fast, and stable disassembly. The entire process does not require removing screws, prying buckles, or using special tools, significantly reducing the difficulty and time cost of on-site maintenance. It is especially suitable for large-scale centralized replacement of smart water meters or troubleshooting scenarios.

[0031] In addition, the automatic reset function of the torsion spring bearing 314 ensures that the limit spring 309 can return to its initial open state after each release of the rotary knob 315, preparing for the next installation and avoiding problems caused by human negligence in installation, thus improving the operational error tolerance and user experience. Finally, since the non-magnetic sensor housing 4 and the liquid-sealed counter 2 are connected non-destructively through the quick positioning and disassembly assembly 3, the integrity of the original fully sealed structure of the liquid-sealed counter 2 is maintained, and the wear or deformation caused to the base meter sealing ring or housing by frequent disassembly and assembly is avoided, thus extending the service life of the entire meter and meeting the IP68 and above protection level requirements.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A detachable liquid-sealed non-magnetic remote water meter, comprising a mechanical base meter body (1), wherein a liquid-sealed counter (2) is fixedly disposed at the top of the mechanical base meter body (1); characterized in that: The top of the liquid-sealed counter (2) is fixedly provided with a quick positioning and disassembly assembly (3), and a non-magnetic sensor housing (4) is provided above the mechanical base body (1) through the quick positioning and disassembly assembly (3). The non-magnetic sensor housing (4) is quickly positioned, installed and disassembled through the quick positioning and disassembly assembly (3).

2. The detachable liquid-sealed non-magnetic remote water meter according to claim 1, characterized in that: The quick positioning and disassembly assembly (3) includes a mounting base (301). The bottom end of the mounting base (301) is fixedly disposed on the top end of the liquid seal counter (2). The top end of the mounting base (301) is fixedly disposed with a plurality of positioning bosses (302). The center part of the top end of the mounting base (301) is provided with a positioning groove (303).

3. The detachable liquid-sealed non-magnetic remote water meter according to claim 2, characterized in that: The bottom of the positioning groove (303) is provided with a limiting groove (304), which is an inverted platform. The inside of the non-magnetic sensor housing (4) is provided with a control cavity (305), and a support rod (306) is fixedly provided at the bottom of the non-magnetic sensor housing (4).

4. A detachable liquid-sealed non-magnetic remote water meter according to claim 3, characterized in that: The bottom end of the support rod (306) is fixedly provided with a limit block (307), and a pipe (308) is opened inside the support rod (306). The top of the pipe (308) passes through the non-magnetic sensor housing (4) and communicates with the control cavity (305). The limit block (307) is an inverted platform.

5. A detachable liquid-sealed non-magnetic remote water meter according to claim 4, characterized in that: The limiting block (307) is movably disposed at the bottom of the limiting groove (304). A plurality of limiting spring pieces (309) are provided on the outer edge of the top of the limiting block (307). The top of the limiting spring piece (309) is movably abutting against the top of the inner end of the limiting groove (304).

6. A detachable liquid-sealed non-magnetic remote water meter according to claim 5, characterized in that: A control rope (310) is fixedly installed on the inner side of the limiting spring (309). A hole (311) is opened on the outer side of the bottom end of the support rod (306). The edge of the hole (311) is a rounded corner. One end of the control rope (310) passes through the hole (311) and extends into the control cavity (305) through the pipe (308).

7. A detachable liquid-sealed non-magnetic remote water meter according to claim 6, characterized in that: The control cavity (305) is provided with a rotating rod (312), and a winding reel (313) is fixedly provided on the outside of the rotating rod (312). One end of the control rope (310) is fixedly connected to the winding reel (313), and a torsion spring bearing (314) is fixedly provided on one end of the rotating rod (312).

8. A detachable liquid-sealed non-magnetic remote water meter according to claim 7, characterized in that: One end of the rotating rod (312) is rotatably mounted on the inside side of the control cavity (305) via a torsion spring bearing (314). The other end of the rotating rod (312) passes through the non-magnetic sensor housing (4) and extends to the outside side. A rotary knob (315) is fixedly mounted on the other end of the rotating rod (312). Several anti-slip textures (316) are provided on the outside of the rotary knob (315).

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