Intelligent water meter convenient to replace

Abstract

The utility model relates to water gauge technical field, and disclose a kind of convenient replacement's intelligent water gauge, including intelligent water gauge main body, connecting pipe piece and water pipe main body, connecting pipe piece inner wall is fixed with fixed ring, and multiple inverted ladder ring parts are fixed with the fixed ring top circumferential array.This utility model is extruded the outer inclined surface of pressure head by the pressure ring part of hollow screw piece bottom, so that inverted ladder ring part is deformed along with, outer inclined surface gathers the outer peripheral surface of water pipe main body to center, so that the direct fixation between intelligent water gauge main body and water pipe main body is made, improve work efficiency, reduce the material and operating cost required, and direct mechanical connection is formed between the two, and overall structure rigidity and anti-interference ability greatly increase;While the bolt part of hollow screw piece is hidden in connecting pipe piece inner wall, better prevent the deformation of thread caused by collision in transportation, installation and use process, cause difficult installation and disassembly, so as to improve the maintenance efficiency and system reliability of intelligent water gauge main body.

Description

Technical Field

[0001] This utility model belongs to the field of water meter technology, and specifically relates to a smart water meter that is easy to replace. Background Technology

[0002] A smart water meter is a modern water resource metering device based on the Internet of Things, sensing technology, and data processing technology. Compared with traditional mechanical water meters, it can not only accurately measure water consumption, but also realize automatic data collection, remote transmission, real-time monitoring, and intelligent management.

[0003] In existing technologies, water meters and water pipes are generally fixed together using movable nuts. In this structure, the water meter only contacts the water pipe end, and the movable nut covers the contact area to achieve compression. Since plastic water pipes are not easy to thread, a union is usually installed as an adapter, and sealant is applied at the joint between the union and the water pipe to ensure a tight seal. This process is not only cumbersome, but also significantly prolongs the water outage time due to waiting for the sealant to cure or the structure to stabilize.

[0004] In addition, this connection method has several inherent defects. The water pipe cannot be directly fixed to the water meter, resulting in low installation efficiency. It also relies on multiple additional components such as unions and sealants, which further increases material and operation costs. Secondly, there is no direct mechanical connection between the water meter and the water pipe. It relies entirely on the movable nut for constraint, resulting in poor overall structural rigidity and anti-interference ability.

[0005] Furthermore, since the movable nut is often in a completely exposed state, its threaded part is very easy to deform if it is subjected to external impact during transportation, installation or use, which will make it impossible to assemble or disassemble the entire connection, seriously affecting maintenance efficiency and system reliability. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a smart water meter that is easy to replace.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a smart water meter that is easy to replace, comprising a smart water meter body, a connecting pipe fitting, and a water pipe body. A fixing ring is fixed to the inner wall of the connecting pipe fitting, and multiple inverted trapezoidal rings are fixed in a circular array at the top of the fixing ring. A pressure head is fixed to the top of the inverted trapezoidal rings, and the outer circumferential surface of the pressure head is set as an outer inclined surface. A threaded groove is opened on the inner circumferential surface of the end of the connecting pipe fitting, and a descending groove is opened on the inner wall of the connecting pipe fitting below the threaded groove. A hollow screw is engaged on the surface of the threaded groove, and the water pipe body is provided on the circumferential surface of the hollow screw. A pressure ring is fixed to the bottom of the hollow screw, and the inner circumferential surface of the pressure ring is in contact with the outer inclined surface.

[0008] Preferably, the outer inclined surface has a plurality of inclined grooves arranged in a circumferential array, and the grooves are opened in the opposite direction to the direction in which the hollow screw is screwed out.

[0009] Preferably, a hollow elliptical pad is glued to the inner circumferential surface of the pressure head, and the surface of the hollow elliptical pad and the inner circumferential surface of the pressure head are both in contact with the outer circumferential surface of the water pipe body.

[0010] Preferably, the bottom of the inner wall of the groove is provided with multiple through grooves, and the inner wall of the connecting pipe below the through groove is provided with a rotating groove. Multiple rotating parts are slidably connected to the inner wall of the rotating groove. The width of the rotating parts is equal to the width of the through groove, and one end of the rotating parts is fixed to the outer circumferential surface of the pressure ring.

[0011] Preferably, the inner wall of the connecting pipe below the rotating groove is provided with an outer expansion groove, and the inner circumferential surface of the outer expansion groove is in contact with the outer circumferential surface of the pressure head.

[0012] Preferably, the top edge of the inner circumferential surface of the pressure head is provided with a guide slope.

[0013] Preferably, a rubber ring is glued to the top of the connecting pipe fitting, and the top of the rubber ring has multiple anti-slip grooves arranged in a circumferential array.

[0014] Preferably, a sealing ring is fixed to the inner circumferential surface of the fixing ring, a sealing outer ring is fixed to the top of the sealing ring, and a sealing inner ring is fixed to the top of the sealing ring. The inner wall of the annular groove formed by the sealing ring, the sealing outer ring, and the sealing inner ring is in contact with one end of the water pipe body.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model utilizes the pressure ring at the bottom of the hollow screw to press down on the outer bevel of the pressure head, causing the inverted trapezoidal ring to deform accordingly. The outer bevel converges towards the center, clamping the outer circumference of the water pipe body, thereby directly fixing the smart water meter body to the water pipe body without the need for a union, improving work efficiency, reducing required materials and operating costs, and forming a direct mechanical connection between the two, greatly increasing the overall structural rigidity and anti-interference ability. At the same time, the bolt part of the hollow screw is hidden in the inner wall of the connecting pipe, which effectively prevents the thread from being deformed by collisions during transportation, installation and use, thus preventing difficulties in installation and disassembly, thereby improving the maintenance efficiency of the smart water meter body and the reliability of the system.

[0017] 2. This utility model uses a slanted groove facing the opposite direction of the hollow screw to prevent it from loosening during use. This significantly increases the frictional force that the hollow screw needs to overcome to prevent it from rotating, thus ensuring its stability. Simultaneously, the rubber ring provides a counterforce against loosening, while the anti-slip groove further increases friction, further preventing loosening and greatly improving the stability of the fixation between the smart water meter body and the water pipe body.

[0018] 3. This utility model restricts the movement of the rotating parts by using a rotating groove, thereby effectively preventing the pressure ring and hollow screw from leaving the connecting pipe. Even during transportation, there will be no loss of parts, which facilitates installation and fixation. Furthermore, during the use of the smart water meter body, vibration cannot cause the hollow screw to detach directly from the connecting pipe. Therefore, even if the hollow screw becomes loose due to vibration, the staff can quickly locate and fix the hollow screw, which improves the remedial effect of abnormal situations and enhances the user experience.

[0019] 4. This utility model achieves a good waterproof sealing effect through the sealing ring, inner sealing ring and outer sealing ring. When water passes through the main body of the water pipe, it is blocked by the three rings and is difficult to change direction multiple times to leave through the inner wall of the annular groove formed by the three rings. This ensures better sealing performance, improves user experience and equipment stability. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a sectional view of the fixing ring of this utility model;

[0022] Figure 3 This is a cross-sectional view of the inverted trapezoidal ring component of this utility model;

[0023] Figure 4 This is a cross-sectional view of the hollow elliptical pad of this utility model;

[0024] Figure 5 This is a cross-sectional view of the pressure head of this utility model;

[0025] Figure 6 This is an exploded view of the sealing ring of this utility model.

[0026] Figure label:

[0027] 1. Smart water meter body; 101. Connecting pipe fittings; 102. Water pipe body;

[0028] 2. Hollow screw; 201. Pressure ring; 202. Retaining ring; 203. Inverted trapezoidal ring; 204. Pressure head; 205. Outer bevel;

[0029] 3. Inclined groove;

[0030] 4. Hollow oval mat;

[0031] 5. External expansion groove; 501. Lowering groove;

[0032] 6. Through groove; 601. Rotating groove; 602. Rotating component;

[0033] 7. Rubber ring; 701. Anti-slip groove;

[0034] 8. Guiding slope;

[0035] 9. Sealing ring; 901. Outer sealing ring; 902. Inner sealing ring. Detailed Implementation

[0036] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0037] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0038] Example 1:

[0039] refer to Figures 1-6 A replaceable smart water meter includes a smart water meter body 1, a connecting pipe fitting 101, and a water pipe body 102. A fixing ring 202 is fixed to the inner wall of the connecting pipe fitting 101. Multiple inverted trapezoidal rings 203 are fixed in a circular array at the top of the fixing ring 202. A pressure head 204 is fixed to the top of the inverted trapezoidal rings 203. The outer circumferential surface of the pressure head 204 is set as an outer inclined surface 205. A threaded groove is opened on the inner circumferential surface of the end of the connecting pipe fitting 101. A descending groove 501 is opened on the inner wall of the connecting pipe fitting 101 below the threaded groove. A hollow screw 2 is engaged on the surface of the threaded groove. The water pipe body 102 is provided on the circumferential surface of the hollow screw 2. A pressure ring 201 is fixed at the bottom of the hollow screw 2. The inner circumferential surface of the pressure ring 201 is in contact with the surface of the outer inclined surface 205.

[0040] Specifically, the pressure ring 201 at the bottom of the hollow screw 2 presses down on the outer bevel 205 of the pressure head 204, causing the inverted trapezoidal ring 203 to deform accordingly. The outer bevel 205 gathers towards the center and clamps the outer circumference of the water pipe body 102, thereby directly fixing the smart water meter body 1 to the water pipe body 102 without the need for a union, improving work efficiency, reducing the required materials and operating costs, and forming a direct mechanical connection between the two, greatly increasing the overall structural rigidity and anti-interference ability. At the same time, the bolt part of the hollow screw 2 is hidden in the inner wall of the connecting pipe 101, which effectively prevents the thread from being deformed by collisions during transportation, installation and use, thus preventing difficulties in installation and disassembly, thereby improving the maintenance efficiency of the smart water meter body 1 and the reliability of the system.

[0041] The outer inclined surface 205 has multiple inclined grooves 3 arranged in a circular array on its surface. The groove direction of the inclined grooves 3 is opposite to the direction of the hollow screw 2 being screwed out. A rubber ring 7 is glued to the top of the connecting pipe fitting 101. The top of the rubber ring 7 has multiple anti-slip grooves 701 arranged in a circular array.

[0042] Specifically, by having the inclined groove 3 facing the opposite screwing direction of the hollow screw 2, when the hollow screw 2 tends to rotate and loosen due to vibration during the use of the smart water meter body 1, the inclined groove 3 greatly increases the friction force that the hollow screw 2 needs to overcome to loosen and rotate, thus allowing the hollow screw 2 to maintain stability better; at the same time, the rubber ring 7 provides anti-loosening reaction force to the hollow screw 2, while the anti-slip groove 701 further increases the friction force, further preventing the hollow screw 2 from loosening, and greatly improving the stability of the fixation between the smart water meter body 1 and the water pipe body 102.

[0043] A hollow elliptical pad 4 is glued to the inner circumferential surface of the pressure head 204, and the surface of the hollow elliptical pad 4 and the inner circumferential surface of the pressure head 204 are both in contact with the outer circumferential surface of the water pipe body 102.

[0044] Specifically, the hollow elliptical pad 4 provides cushioning between the pressure head 204 and the water pipe body 102 when they come into contact. This prevents the pressure head 204 from having a small contact area and a large unit pressure when it first contacts the water pipe body 102 due to the large force applied and the slow deformation of the inverted trapezoidal ring 203 as it descends with the pressure ring 201. The cushioning and deformation of the hollow elliptical pad 4 effectively prevents deformation of the relatively fragile end of the water pipe body 102, which has room for deformation. This ensures a better fit and waterproofing effect between the water pipe body 102 and the connecting pipe fitting 101. At the same time, the hollow elliptical pad 4 further prevents the water pipe body 102 from shaking or detaching from the connecting pipe fitting 101, thus improving the stability of the equipment.

[0045] Multiple through grooves 6 are provided at the bottom of the inner wall of the groove 501. A rotating groove 601 is provided on the inner wall of the connecting pipe 101 below the through groove 6. Multiple rotating parts 602 are slidably connected to the inner wall of the rotating groove 601. The width of the rotating parts 602 is equal to the width of the through groove 6. One end of the rotating parts 602 is fixed to the outer circumferential surface of the pressure ring 201.

[0046] Specifically, by restricting the movement of the rotating part 602 through the rotating groove 601, the pressure ring 201 and the hollow screw 2 are effectively prevented from leaving the connecting pipe 101. Even during transportation, no parts will be lost, making installation and fixing easier. Furthermore, during the use of the smart water meter body 1, vibration cannot cause the hollow screw 2 to directly detach from the connecting pipe 101. Therefore, even if the hollow screw 2 becomes loose due to vibration, staff can quickly locate and fix it, thus improving the remedial effect of abnormal situations and enhancing the user experience.

[0047] An outwardly expanding groove 5 is formed on the inner wall of the connecting pipe 101 below the rotating groove 601, and the inner circumferential surface of the outwardly expanding groove 5 contacts the outer circumferential surface of the pressure head 204. A guide slope 8 is formed on the top edge of the inner circumferential surface of the pressure head 204.

[0048] Specifically, the outer expansion groove 5 provides space for the pressure head 204, which is not compressed by the pressure ring 201, and preserves as much space as possible for the water pipe body 102 to be installed on the inner wall of the connecting pipe fitting 101. This prevents the water pipe body 102 from being difficult to insert due to the pressure head 204 or causing the pressure head 204 and the inverted ladder ring 203 to break when it is placed into the connecting pipe fitting 101. This ensures the integrity of the components and the yield rate, improves the user experience, facilitates installation by staff, and improves work efficiency. The guiding slope 8 provides guidance to the water pipe body 102, making it easier for staff to insert.

[0049] A sealing ring 9 is fixed on the inner circumferential surface of the fixing ring 202, a sealing outer ring 901 is fixed on the top of the sealing ring 9, and a sealing inner ring 902 is fixed on the top of the sealing ring 9. The inner wall of the annular groove formed by the sealing ring 9, the sealing outer ring 901, and the sealing inner ring 902 is in contact with one end of the water pipe body 102.

[0050] Specifically, the sealing ring 9, the inner sealing ring 902, and the outer sealing ring 901 form a good waterproof sealing effect, making it difficult for water to change direction multiple times when passing through the main body of the water pipe 102 due to the multi-level shielding of the three, thus ensuring good sealing performance and improving user experience and equipment stability.

[0051] Example 2:

[0052] refer to Figures 1-6 Staff members used the structure disclosed in this utility model in a water meter renovation project in an old residential area of ​​a certain city.

[0053] The construction workers replaced the DN20 smart water meter for the third-floor resident. First, they closed the main valve of the unit and drained the pipeline. They used pipe shears to cut off the defective section of the original rusted galvanized pipe. They then inserted the PPR water pipe into the connecting fitting until the pipe end contacted the sealing ring assembly (a multi-stage sealing structure consisting of an NBR sealing ring, a stainless steel outer sealing ring, and an EPDM inner sealing ring). Then, they rotated the hollow screw (only 12mm of which was exposed) clockwise. The 304 stainless steel pressure ring at the bottom pressed down on the outer bevel of the pressure head (at an angle of 25 degrees), causing the six POM inverted trapezoidal rings to contract synchronously towards the center. The silicone hollow elliptical pad on the inner wall of the pressure head tightened the outer wall of the water pipe with a clamping pressure of 0.3MPa. At the same time, the rotating part slid in the rotating groove to ensure that the components did not fall off. The entire installation process did not require any unions or sealant. The connection on one side took only 90 seconds, and the tightening torque measured by a torque wrench reached 18 N·m.

[0054] Water flow tests showed no leakage under a working pressure of 0.6MPa. Vibration tests (frequency 20Hz, amplitude 1mm) demonstrated the synergistic effect of the inclined groove structure and the rubber ring anti-slip groove, with no loosening of the hollow screw components. This method improves installation efficiency by four times compared to traditional methods, eliminates the need to wait for the sealing material to cure, and reduces water outage time for users to within ten minutes.

[0055] The working principle of this utility model is as follows: During installation, the water pipe body 102 is first inserted into the connecting pipe fitting 101, with its end abutting against the multi-stage sealing structure formed by the sealing ring 9, the outer sealing ring 901, and the inner sealing ring 902; then the hollow screw 2 is rotated so that it is screwed into the threaded groove on the inner wall of the connecting pipe fitting 101, and the pressure ring 201 at the bottom of the hollow screw 2 descends and squeezes the outer inclined surface 205 of the pressure head 204; this pressure is transmitted through the inverted trapezoidal ring 203, causing it to produce centripetal elastic deformation, thereby driving the pressure head 204 and its inner hollow elliptical pad 4 to tightly hug the outer circumferential surface of the water pipe body 102, forming a direct mechanical connection and seal;

[0056] Meanwhile, the rotating part 602 fixed on the outer periphery of the pressure ring 201 slides in the rotating groove 601 of the connecting pipe 101, preventing the hollow screw 2 from being completely dislodged by vibration during use and ensuring the integrity of the component; the inclined groove 3 opened on the surface of the outer inclined surface 205 is opposite to the loosening direction of the hollow screw 2, which greatly increases the friction force that needs to be overcome to loosen, and together with the anti-loosening reaction force provided by the rubber ring 7 at the top of the connecting pipe 101 and its anti-slip groove 701, they effectively resist vibration during use and prevent the connection from loosening;

[0057] The guide slope 8 on the top of the pressure head 204 facilitates the insertion of the water pipe, while the outer expansion groove 5 provides a space for the unpressurized pressure head 204 to avoid interference with installation; ultimately, a fast, reliable, direct connection between the smart water meter body 1 and the water pipe body 102 without the need for unions and sealants is achieved, which also has excellent vibration resistance, anti-loosening and sealing performance.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A replaceable smart water meter, comprising a smart water meter body (1), a connecting pipe fitting (101), and a water pipe body (102), characterized in that: A fixing ring (202) is fixed to the inner wall of the connecting pipe fitting (101). Multiple inverted trapezoidal rings (203) are fixed to the top of the fixing ring (202) in a circumferential array. A pressure head (204) is fixed to the top of the inverted trapezoidal ring (203). The outer circumferential surface of the pressure head (204) is set as an outer inclined surface (205). A threaded groove is opened on the inner circumferential surface of the end of the connecting pipe fitting (101). A descending groove (501) is opened on the inner wall of the connecting pipe fitting (101) below the threaded groove. A hollow threaded part (2) is engaged on the surface of the threaded groove. A water pipe body (102) is provided on the circumferential surface of the hollow threaded part (2). A pressure ring (201) is fixed to the bottom of the hollow threaded part (2). The inner circumferential surface of the pressure ring (201) is in contact with the surface of the outer inclined surface (205).

2. The easily replaceable smart water meter according to claim 1, characterized in that: The outer inclined surface (205) has a plurality of inclined grooves (3) arranged in a circular array, and the groove direction of the inclined grooves (3) is opposite to the direction of the hollow screw (2) being screwed out.

3. The easily replaceable smart water meter according to claim 1, characterized in that: A hollow elliptical pad (4) is glued to the inner circumferential surface of the pressure head (204), and the surface of the hollow elliptical pad (4) and the inner circumferential surface of the pressure head (204) are both in contact with the outer circumferential surface of the water pipe body (102).

4. The easily replaceable smart water meter according to claim 1, characterized in that: The bottom of the inner wall of the groove (501) is provided with multiple through grooves (6), and the inner wall of the connecting pipe (101) below the through groove (6) is provided with a rotating groove (601). Multiple rotating parts (602) are slidably connected to the inner wall of the rotating groove (601). The width of the rotating part (602) is equal to the width of the through groove (6), and one end of the rotating part (602) is fixed to the outer circumferential surface of the pressure ring (201).

5. The easily replaceable smart water meter according to claim 4, characterized in that: An outer expansion groove (5) is provided on the inner wall of the connecting pipe (101) below the rotating groove (601), and the inner circumferential surface of the outer expansion groove (5) is in contact with the outer circumferential surface of the pressure head (204).

6. The easily replaceable smart water meter according to claim 1, characterized in that: The top edge of the inner circumferential surface of the pressure head (204) is provided with a guide slope (8).

7. The easily replaceable smart water meter according to claim 1, characterized in that: A rubber ring (7) is glued to the top of the connecting pipe fitting (101), and multiple anti-slip grooves (701) are arranged in a circular array on the top of the rubber ring (7).

8. The easily replaceable smart water meter according to claim 1, characterized in that: A sealing ring (9) is fixed on the inner circumferential surface of the fixing ring (202), a sealing outer ring (901) is fixed on the top of the sealing ring (9), and a sealing inner ring (902) is fixed on the top of the sealing ring (9). The inner wall of the annular groove formed by the sealing ring (9), the sealing outer ring (901), and the sealing inner ring (902) is in contact with one end of the water pipe body (102).

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