Vibration sensor with replaceable magnet

Abstract

The utility model provides a vibration sensor with a replaceable magnet. The vibration sensor comprises a data acquisition part, a data transmission part, and a signal line connected between the data acquisition part and the data transmission part. The data acquisition part is mounted on the pipe wall of the hot water pipeline, acquires vibration data of the hot water pipeline through a built-in piezoelectric sensor and transmits the vibration data to the data transmission part through a signal line; the data transmission component supplies power to the data acquisition component through a signal line and establishes data connection with the cloud server so as to send vibration data acquired by the data acquisition component; the data acquisition component comprises a shell, a base, a magnet and a fastening nut; the shell and the base are spliced to form a cavity for accommodating the piezoelectric sensor, the positive electrode plate, the negative electrode plate and the pressing block; a groove for containing the magnet is formed in the side, away from the cavity, of the base, and a stud used for being connected with the fastening nut is arranged in the groove. The magnet is provided with a receding channel corresponding to the stud.

Description

Technical Field

[0001] This application relates to sensors, and more particularly to vibration sensors for monitoring leaks in underground hot water pipes. Background Technology

[0002] Pipeline leaks are a common and serious problem in heating systems, potentially leading to energy waste, environmental pollution, and safety hazards. Traditional leak detection methods primarily rely on manual inspections, flow monitoring, drone inspections, and pressure monitoring. These methods have the following shortcomings:

[0003] 1. Manual inspection is inefficient and prone to omissions.

[0004] 2. Flow monitoring cannot detect minute leaks in real time.

[0005] 3. Drone inspections are limited and cannot penetrate deep into the pipeline.

[0006] 4. Pressure monitoring can only provide overall pressure changes and cannot accurately locate leaks.

[0007] 5. Existing sensors are unstable in complex underground environments.

[0008] Therefore, there is an urgent need for a new type of monitoring equipment that can detect leaks in underground hot water pipes in real time and accurately.

[0009] To address this issue, the applicant has applied for a vibration sensor for monitoring leaks in underground hot water pipes. The vibration sensor comprises a data acquisition component and a data transmission component. The data acquisition component uses a built-in piezoelectric sensor to collect vibration data from the hot water pipe and transmits it to the data transmission component via a signal line. The data transmission component powers the data acquisition component via the signal line and establishes a data connection with a cloud server to send the vibration data collected by the data acquisition component. This achieves a vibration sensor for monitoring leaks in underground hot water pipes, enabling real-time and accurate detection. However, this solution uses magnets to fix the data acquisition component; if the magnets are damaged, the entire data acquisition component needs to be replaced, resulting in high costs. Utility Model Content

[0010] The main technical problem to be solved by this utility model is to provide a vibration sensor with a replaceable magnet. The magnet can be easily replaced, so that the magnet can be replaced separately after it is damaged, without replacing the entire sensor, which greatly reduces the cost.

[0011] To solve the above-mentioned technical problems, this utility model provides a vibration sensor with replaceable magnets, including: a data acquisition component, a data transmission component, and a signal line connected between the data acquisition component and the data transmission component;

[0012] The data acquisition component is installed on the wall of the hot water pipe, and collects the vibration data of the hot water pipe through the built-in piezoelectric sensor and transmits it to the data transmission component through the signal line;

[0013] The data transmission component supplies power to the data acquisition component via a signal line and establishes a data connection with the cloud server to send the vibration data collected by the data acquisition component.

[0014] The data acquisition component includes a housing, a base, a magnet, and a fastening nut; the housing and the base are assembled to form a cavity for accommodating a piezoelectric sensor, a positive electrode plate, a negative electrode plate, and a pressure block; the base has a groove for accommodating the magnet on the side away from the cavity, and a stud for connecting the fastening nut is provided in the groove; the magnet has a clearance channel corresponding to the position of the stud.

[0015] In a preferred embodiment: the fastening nut includes a first portion extending into the clearance channel and a support surface disposed at the end of the first portion and extending radially outward; when the first portion is fixed to the stud, the support surface abuts and is fixed to the lower surface of the magnet.

[0016] In a preferred embodiment: the positive electrode plate and the negative electrode plate are respectively electrically connected to the signal line after passing through the pressure block with wires.

[0017] In a preferred embodiment: there are two piezoelectric sensors, which are stacked; the positive electrode is disposed between the two piezoelectric sensors, and the negative electrode is disposed on the upper surface of the upper piezoelectric sensor.

[0018] In a preferred embodiment, the piezoelectric sensor is clamped between the pressure block and the base.

[0019] In a preferred embodiment: the pressure block is provided with a channel for bolts to pass through, the piezoelectric sensor, the positive electrode plate and the negative electrode plate are provided with clearance openings at the positions corresponding to the channel, and the base is provided with threaded holes at the positions corresponding to the clearance openings.

[0020] In a preferred embodiment: the inner wall of the channel extends radially inward with a raised edge, and when the bolt is connected to the threaded hole, the nut of the bolt abuts against the raised edge.

[0021] In a preferred embodiment: the base has a cavity on the side facing the pressure block for placing the piezoelectric sensor, the positive electrode plate and the negative electrode plate, and the bottom of the cavity has the threaded hole.

[0022] In a preferred embodiment, the data transmission component incorporates a battery and a circuit board.

[0023] In a preferred embodiment: sealing plugs for the data acquisition component and the data transmission component are respectively provided at both ends of the signal line; the sealing plug has an insertion portion for inserting into the data acquisition component and the data transmission component, and a connection portion for inserting into the signal line;

[0024] The insertion part is provided with an annular groove along the circumference. The data acquisition component and the data transmission component are respectively provided with flanges that cooperate with the annular groove. When the insertion part is inserted into the data acquisition component and the data transmission component, the flanges are placed in the annular groove and are respectively limited and cooperated with the inner walls on both sides of the annular groove.

[0025] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0026] This invention provides a vibration sensor with a replaceable magnet, comprising a data acquisition component and a data transmission component. The data acquisition component uses a built-in piezoelectric sensor to collect vibration data from a hot water pipe and transmits it to the data transmission component via a signal line. The data transmission component powers the data acquisition component via the signal line and establishes a data connection with a cloud server to send the vibration data collected by the data acquisition component. This creates a vibration sensor for monitoring leaks in underground hot water pipes, enabling real-time and accurate detection. Furthermore, the magnet is easily replaceable, allowing for individual magnet replacement when damaged, eliminating the need to replace the entire sensor and significantly reducing costs. Attached Figure Description

[0027] Figure 1 This is an isometric view of a preferred embodiment of the present invention;

[0028] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0029] Figure 3 This is an isometric view of the data acquisition component in a preferred embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of the data acquisition component in a preferred embodiment of the present invention;

[0031] Figure 5 This is an exploded view of the data acquisition component in a preferred embodiment of the present invention;

[0032] Figure 6 This is an isometric view of the data transmission component in a preferred embodiment of the present invention;

[0033] Figure 7 This is a cross-sectional view of the data transmission component in a preferred embodiment of the present invention. Detailed Implementation

[0034] To make the technical solution and features of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only for illustrating this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

[0035] refer to Figures 1-7 This embodiment provides a vibration sensor with replaceable magnets, including: a data acquisition component 1, a data transmission component 2, and a signal line 3 connected between the data acquisition component 1 and the data transmission component 2;

[0036] The data acquisition component 1 is installed on the wall of the hot water pipe, and collects the vibration data of the hot water pipe through the built-in piezoelectric sensor 11 and transmits it to the data transmission component 2 through the signal line 3;

[0037] The data transmission component 2 supplies power to the data acquisition component 1 via the signal line 3 and establishes a data connection with the cloud server to send the vibration data collected by the data acquisition component 1. This enables the use of a vibration sensor for monitoring leaks in underground hot water pipes, allowing for real-time and accurate detection of leaks.

[0038] To achieve data acquisition, a piezoelectric sensor 11 needs to be installed inside the data acquisition component 1. Therefore, the data acquisition component 1 includes a housing 12, a base 13, a pressure block 14, the piezoelectric sensor 11, a positive electrode 15, and a negative electrode 16. The housing 12 and the base 13 are assembled to form a cavity housing the piezoelectric sensor 11, the positive electrode 15, the negative electrode 16, and the pressure block 14. The positive electrode 15 and the negative electrode 16 are electrically connected to the signal line 3 via wires passing through the pressure block 14. This achieves the electrical connection between the piezoelectric sensor 11 and the pressure block 14. When pipeline vibration is transmitted to the sensor, it squeezes the piezoelectric sensor 11, generating an electric charge, which is collected by the positive electrode 15 and the negative electrode 16 and transmitted to the circuit board of the data transmission component 2 for processing via the signal line.

[0039] In this embodiment, two piezoelectric sensors 11 are stacked together. The positive electrode 15 is disposed between the two piezoelectric sensors 11, and the negative electrode 16 is disposed on the upper surface of the upper piezoelectric sensor 11. The negative electrode of the lower piezoelectric sensor 11 is connected to the negative electrode of the upper piezoelectric sensor 11 through a metal material such as the base 13 and the outer shell 12. This structure enables the acquisition of pipeline vibration by two piezoelectric sensors 11.

[0040] To secure the piezoelectric sensor 11, it is clamped between the pressure block 14 and the base 13. Specifically, the pressure block 14 has a channel 141 through which a bolt 17 passes. The piezoelectric sensor 11, the positive electrode 15, and the negative electrode 16 have clearance openings corresponding to the channel 141. The base 13 has threaded holes corresponding to the clearance openings. Thus, the bolt 17 can pass through the channel 141, through the clearance opening, and into the threaded hole, ultimately securing the pressure block 14 and the base 13, thereby clamping the piezoelectric sensor 11 between them.

[0041] Furthermore, the connection strength between the pressure block 14 and the base 13 needs to be controlled to prevent the gap between the control plate and the base 13 from being too small, which would cause excessive pressure on the piezoelectric sensor 11 and damage it. A raised edge 142 extends radially inward from the inner wall of the channel 141. When the bolt 17 is connected to the threaded hole, the nut of the bolt 177 abuts against the raised edge 142. The raised edge 142 limits the depth of the bolt 17 into the threaded hole, thus preventing the aforementioned situation from occurring.

[0042] The base 13 has a recessed cavity on the side facing the pressure block 14 for placing the piezoelectric sensor 11, the positive electrode 15, and the negative electrode 16. A threaded hole is provided at the bottom of the cavity. This cavity design allows for the positioning of the piezoelectric sensor 11, the positive electrode 15, and the negative electrode 16, ensuring that their positions automatically align with the threaded hole without requiring excessive calibration.

[0043] In order to install the data acquisition component 1 on the wall of the hot water pipe, the base 13 is provided with a magnet 131 for adsorbing the data acquisition component 1 onto the wall of the hot water pipe.

[0044] In order to enable the data transmission component 2 to supply power to the data acquisition component 1 via the signal line 3, the data transmission component 2 has a built-in battery 21 and a circuit board.

[0045] Finally, the data acquisition component 1 and the data transmission component 2 are stably connected via a signal line 3. Each end of the signal line 3 is provided with a sealing plug 31 for the data acquisition component 1 and the data transmission component 2, respectively. The sealing plug 31 has an insertion portion 311 for inserting the data acquisition component 1 and the data transmission component 2, and a connection portion 312 for inserting the signal line 3. The insertion portion 311 has a circumferentially arranged annular groove 3111. The data acquisition component 1 and the data transmission component 2 are respectively provided with flanges 18 and 22 that mate with the annular groove 3111. When the insertion portion 311 is inserted into the data acquisition component 1 and the data transmission component 2, the flanges 18 and 22 are placed within the annular groove 3111 and are respectively positioned and engaged with the inner walls on both sides of the annular groove 3111.

[0046] In this embodiment, to facilitate user replacement of the magnet 131, the base 13 has a groove 132 on the side away from the chamber to accommodate the magnet 131. A stud 134 for connecting the fastening nut 133 is provided within the groove 132. A clearance channel 135 is provided on the magnet 131 corresponding to the stud 134. The fastening nut 133 includes a first portion 1331 extending into the clearance channel 135 and a support surface 1332 located at the end of the first portion 1331 and extending radially outward. When the first portion 1331 is fixed to the stud 134, the support surface 1332 abuts against and is fixed to the lower surface of the magnet 131. This completes the installation of the magnet 131. If the magnet 131 needs to be replaced, simply remove the fastening nut 133 to remove the magnet 131 from the groove 132 for replacement.

[0047] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A replaceable magnet vibrating sensor, characterized by The utility model relates to a kind of hot water pipe vibration data acquisition device, including: Data acquisition component, data transmission component and signal line connected between data acquisition component and data transmission component; The data acquisition component is mounted on the pipe wall of hot water pipeline, and the vibration data of hot water pipeline are collected by built-in piezoelectric sensor and transmitted to the data transmission component by signal line; The data transmission component supplies power to data acquisition component through signal line, and establishes data connection between cloud server to send vibration data collected by data acquisition component; The data acquisition component includes the data acquisition component including shell, base, magnet and fastening nut;The shell and base split out the cavity containing piezoelectric sensor, positive electrode sheet, negative electrode sheet and pressing block;The base is provided with recess accommodating the magnet on the side away from the cavity, and the recess is provided with stud for connecting the fastening nut;The magnet is provided with a channel corresponding to the position of the stud.

2. The replaceable magnet vibrating sensor according to claim 1, wherein: The fastening nut includes the first part extending into the channel, the support surface extending radially outward at the end of the first part;When the first part is fixed with the stud, the support surface is in contact with the lower surface of the magnet.

3. The replaceable magnet vibrating sensor of claim 2, wherein: The positive electrode sheet and negative electrode sheet are respectively connected with signal line by passing through the pressing block.

4. The replaceable magnet vibrating sensor of claim 2, wherein: The piezoelectric sensor is two, and is stacked;The positive electrode sheet is arranged between the two piezoelectric sensors, and the negative electrode sheet is arranged on the upper surface of the upper piezoelectric sensor.

5. The replaceable magnet vibrating sensor of claim 4, wherein: The piezoelectric sensor is clamped between the pressing block and the base.

6. The replaceable magnet vibrating sensor of claim 5, wherein: The pressing block is provided with a channel for the bolt to pass through, and the piezoelectric sensor, positive electrode sheet and negative electrode sheet are provided with a channel opening corresponding to the position of the channel, and the base is provided with a threaded hole corresponding to the position of the channel opening.

7. The replaceable magnet vibrating sensor of claim 6, wherein: The inner wall of the channel extends a convex along the radial direction inward, and the nut of the bolt is in contact with the convex when the bolt is connected with the threaded hole.

8. The replaceable magnet vibrating sensor of claim 6, wherein: The side of the base towards the pressing block is provided with a recess for placing the piezoelectric sensor, positive electrode sheet and negative electrode sheet, and the bottom of the recess is provided with the threaded hole.

9. The replaceable magnet vibrating sensor of claim 1, wherein: The data transmission component is built-in battery and circuit board.

10. The replaceable magnet vibrating sensor of claim 1, wherein: Both ends of the signal line are respectively provided with sealing plug of data acquisition component and data transmission component;The sealing plug has an insertion part inserted into data acquisition component and data transmission component, and a connecting part inserted into the signal line; The insertion part is provided with an annular groove along the circumferential direction, and the data acquisition component and data transmission component are respectively provided with flange matched with the annular groove, and when the insertion part is inserted into data acquisition component and data transmission component, the flange is placed in the annular groove, and is respectively limited in the inner wall of both sides of annular groove.

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