Alarm device for four-chamber water supply unit

By designing an alarm device for a four-chamber water supply unit, simultaneous monitoring of multiple pressure channels is achieved, and the problem of only one pressure channel in the prior art is solved, reducing costs and improving the comprehensiveness and flexibility of measurement.

CN119915428BActive Publication Date: 2025-05-30TAIYUAN FENYUAN WATER SUPPLY EQUIP CO LTD
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Patent Information

Application Number
CN202510413032.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-05-30
Estimated Expiration
2045-04-03

AI Technical Summary

Technical Problem

The existing alarm devices can only monitor one pressure channel and cannot monitor multiple pressure sources at the same time, resulting in the need to configure multiple single-channel devices of different models in the case of monitoring multiple pressure channels simultaneously, which increases cost and complexity.

Method used

An alarm device for a four-chamber water supply unit is designed, including an alarm module, a monitoring body and a pressure sensing module. A set of alarm modules realizes simultaneous monitoring of four pressure sensing modules, and uses springs of different elastic modulus to adapt to the needs of different pressure channels.

Benefits of technology

Simultaneous monitoring of four different pressure channels is achieved, reducing the need to configure multiple single-channel devices, reducing costs, and improving measurement comprehensiveness and flexibility.

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Abstract

The present invention relates to the field of alarm devices, and provides an alarm device for a four-chamber water supply unit, comprising: an alarm module, a monitoring main body, and a pressure sensing module; the alarm module includes an alarm unit; the monitoring main body includes a cylindrical main body, and a first annular groove and a second annular groove which are concentrically arranged are formed on the upper side of the cylindrical main body. A first electrode ring is arranged inside the first annular groove, and a second electrode ring is arranged inside the second annular groove. The first electrode ring and the second electrode ring are electrically connected to the control module. When the control module senses that the two electrode rings are connected, it controls the alarm unit to emit an alarm prompt sound; the pressure sensing module is respectively communicated with a sterilization tank, a negative pressure elimination tank, a water quality analysis tank, and a voltage stabilization compensation tank in the four-chamber water supply unit via pressure transfer pipes. The present invention uses a set of alarm modules to simultaneously monitor four groups of pressure sensing modules, improving the system integration degree and reducing the cost.
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Description

Technical Field

[0001] The present invention relates to the field of alarm devices, and particularly to an alarm device for a four-chamber water supply unit. Background Art

[0002] The four-chamber water supply unit in the prior art (specifically refer to CN110984288A) includes a sterilization tank, a negative pressure elimination tank, a water quality analysis tank, and a voltage stabilization compensation tank, so that water can be disinfected, negative pressure eliminated, water quality analyzed, and voltage stabilized and compensated respectively after being discharged into the sterilization tank, the negative pressure elimination tank, the water quality analysis tank, and the voltage stabilization compensation tank, realizing standardized water supply and intelligent water supply. When the four-chamber water supply unit is working, it is necessary to ensure that the pressure inside the four tanks is maintained within a specified range to prevent pipeline blockage, water leakage and other situations. When the range is exceeded, the alarm device emits an alarm prompt sound to remind the staff to repair it in time. However, the existing alarm device can only monitor one pressure channel, and the function is relatively single. In the scenario where multiple pressure sources need to be monitored simultaneously, multiple single-channel devices of different models need to be configured, increasing the cost and complexity. Therefore, providing an alarm device that can monitor multiple channels simultaneously is a technical problem that technicians urgently need to solve. Summary of the Invention

[0003] In view of the above technical problems, the present invention provides an alarm device for a four-chamber water supply unit, including: an alarm module, a monitoring main body, and a pressure sensing module;

[0004] The alarm module includes a hollow cylindrical shell, a display module, a control module, an alarm module, and a power supply module; the display module is arranged outside the shell, and the control module, the alarm module, and the power supply module are arranged inside the shell. The control module is electrically connected to the display module and the alarm module; the power supply module is used for supplying power inside the alarm module;

[0005] The monitoring main body includes a cylindrical main body, and a circular hole is opened from top to bottom in the middle of the cylindrical main body; four non-through sensing holes are opened from bottom to top around the circular hole; four first transmission holes are opened on the upper side of the cylindrical main body, and the first transmission holes are concentric and communicated with the sensing holes; a first annular groove and a second annular groove are concentrically arranged on the upper side of the cylindrical main body. The diameter of the first annular groove is larger than that of the second annular groove. The first annular groove overlaps with the first transmission hole partially and is arranged outside the first transmission hole. The second annular groove overlaps with the first transmission hole partially and is arranged inside the first transmission hole; a first electrode ring is arranged inside the first annular groove, and a second electrode ring is arranged inside the second annular groove. The first electrode ring and the second electrode ring are electrically connected to the control module. When the control module senses that the two electrode rings are connected, it controls the alarm module to emit an alarm prompt sound;

[0006] The number of the pressure sensing modules is four, which are correspondingly arranged inside the sensing holes. The pressure sensing modules are respectively communicated with a sterilization tank, a negative pressure elimination tank, a water quality analysis tank and a voltage stabilizing compensation tank in a four-chamber water supply unit, and are communicated with the first electrode ring and the second electrode ring when the pressure exceeds a set threshold value.

[0007] Optionally, the pressure sensing module includes a first pressure sensing body, a second pressure sensing body and a adapter; the first pressure sensing body is a hollow cylinder, and a pressure sensing moving module is arranged inside the first pressure sensing body; a circular packaging plate is arranged at the top of the first pressure sensing body, a second transmission hole is formed in the middle of the circular packaging plate, and a spring is arranged between the circular packaging plate and the pressure sensing moving module; the elastic moduli of the springs inside different pressure sensing modules are the same or different;

[0008] The second pressure sensing body is a hollow cylinder and has a diameter larger than that of the first pressure sensing body. The second pressure sensing body is arranged at the bottom of the first pressure sensing body; an elastic first pressure sensing hemisphere, an elastic second pressure sensing hemisphere and an elastic pressure sensing diaphragm are arranged inside the second pressure sensing body. The curved surface side of the first pressure sensing hemisphere is in contact with the curved surface side of the second pressure sensing hemisphere. The flat surface side of the first pressure sensing hemisphere is connected to the bottom of the pressure sensing moving module, and the flat surface side of the second pressure sensing hemisphere is connected to the top of the pressure sensing diaphragm; the pressure sensing diaphragm is hermetically arranged at the bottom inside the second pressure sensing body; the adapter is arranged at the bottom of the second pressure sensing body and is used for communicating with an external pressure transmission pipe.

[0009] Optionally, the pressure sensing moving module includes a pressure transmission rod, a first circular guide plate, a pressure transmission plate and a second circular guide plate which are arranged in sequence from top to bottom; a water droplet-shaped through hole is arranged in the middle of the pressure transmission plate; a circular electrode is arranged at the top of the pressure transmission rod; the diameters of the pressure transmission rod, the second transmission hole and the first transmission hole are the same, and the pressure transmission rod can pass through the second transmission hole and the first transmission hole without resistance; the diameters of the first circular guide plate and the second circular guide plate are the same and match the inner diameter of the first pressure sensing body; the diameter of the pressure transmission rod is smaller than the diameter of the first circular guide plate; the transverse dimension of the pressure transmission plate is smaller than the diameter of the first circular guide plate.

[0010] Optionally, a through first guide hole and a second guide hole are arranged concentrically in the radial direction of the first pressure sensing body, and the first guide hole and the second guide hole are arranged above the water droplet-shaped through hole.

[0011] Optionally, inside the cylindrical body, four first communication holes and four second communication holes are radially formed along the cylindrical body. The first communication holes and the second communication holes are respectively arranged outside the sensing holes. The first communication holes connect the circular holes and the sensing holes, and the second communication holes connect the sensing holes and the outside of the cylindrical body. The first communication holes, the second communication holes, the first guiding holes, and the second guiding holes are concentrically arranged. A third communication hole is formed above the second communication hole, and the third communication hole connects the upper part of the cylindrical body and the second communication hole.

[0012] Optionally, a light source is arranged inside the first communication hole, a light-sensitive element is arranged on the inner side of the second communication hole facing inward, and a light-emitting element is arranged on the outer side of the second communication hole facing outward. The light source, the light-sensitive element, and the light-emitting element are all electrically connected to the control module. The light source is used to irradiate the pressure-sensing moving module, and the light-sensitive element is used to receive the light passing through the pressure-sensing moving module. By measuring the magnitude of the light power received by the light-sensitive element, the measurement of the sensed pressure is realized. The light-emitting element emits green light when the sensed pressure is normal and emits red light when the sensed pressure is abnormal.

[0013] Optionally, two optical fiber through holes are radially formed along the second pressure-sensing body. An elastic tube is arranged inside the optical fiber through holes, and the elastic tube is arranged between the first pressure-sensing hemisphere and the second pressure-sensing hemisphere. The pressure-sensing optical fiber can pass through the elastic tube. The pressure-sensing optical fiber is used for the calibration of the light-sensitive element, or the pressure-sensing optical fiber is used as a pressure measurement module.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] 1. The alarm device for a four-chamber water supply unit uses a group of alarm modules to simultaneously monitor four groups of pressure sensing modules, improving the integration of the system. The alarm device for a four-chamber water supply unit can simultaneously monitor four different pressure channels. To deal with different pressure channels, only springs with different elastic moduli need to be replaced, and there is no need to purchase multiple different types of pressure sensors, which saves costs and improves the comprehensiveness of measurement.

[0016] 2. Optical fiber through holes are radially formed in the second pressure-sensing body. The light-sensitive element is calibrated through the pressure-sensing optical fiber, or, to improve the measurement accuracy, the pressure-sensing optical fiber is used as a pressure measurement module. Customers can install the pressure-sensing optical fiber according to their needs, improving the flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0019] Figure 3 Cross-sectional view of an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the structure of the alarm main body in an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0021] Figure 5 Schematic diagram of the structure of the pressure sensing module in an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the principle of the pressure sensing module in an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the pressure sensing optical fiber in an alarm device for a four-chamber water supply unit provided by an embodiment of the present invention.

[0024] The realization, functional characteristics and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As Figure 1-7 shown, an embodiment of the present invention provides an alarm device for a four-chamber water supply unit, including: an alarm module 1, a monitoring main body 2, and a pressure sensing module 3;

[0027] The alarm module 1 includes a hollow cylindrical housing, a display module, a control module, an alarm module, and a power supply module; a display module is arranged outside the housing, a control module, an alarm module, and a power supply module are arranged inside the housing, and the control module is electrically connected to the display module and the alarm module; the power supply module is used for power supply inside the alarm module 1;

[0028] As Figure 4As shown, the monitoring body 2 includes a cylindrical body 21, and a circular hole 22 is formed in the middle of the cylindrical body 21 from top to bottom; four non-through sensing holes 23 are formed around the circular hole 22 from bottom to top; four first transfer holes 24 are formed in the upper side of the cylindrical body 21, and the first transfer holes 24 are concentric and communicated with the sensing holes 23; a first annular groove 25 and a second annular groove 26 are concentrically arranged on the upper side of the cylindrical body 21, the diameter of the first annular groove 25 is larger than that of the second annular groove 26, the first annular groove 25 partially overlaps with the first transfer hole 24 and is arranged outside the first transfer hole 24, and the second annular groove 26 partially overlaps with the first transfer hole 24 and is arranged inside the first transfer hole 24; a first electrode ring 11 is arranged inside the first annular groove 25, a second electrode ring 12 is arranged inside the second annular groove 26, the first electrode ring 11 and the second electrode ring 12 are electrically connected to the control module, and when the control module senses that the two electrode rings are communicated, it controls the alarm module to emit an alarm prompt sound;

[0029] The number of the pressure sensing modules 3 is 4, which are correspondingly arranged inside the sensing holes 23. The pressure sensing modules 3 are respectively communicated with a sterilization tank, a negative pressure elimination tank, a water quality analysis tank and a voltage stabilization compensation tank in a four-chamber water supply unit, and when the pressure exceeds the set threshold value, they are communicated with the first electrode ring 11 and the second electrode ring 12.

[0030] Optionally, as Figure 5 shown, the pressure sensing module 3 includes a first pressure sensing body 31, a second pressure sensing body 32 and a adapter 33; the first pressure sensing body 31 is a hollow cylinder, and a pressure sensing moving module 35 is arranged inside the first pressure sensing body 31; a circular encapsulation plate 34 is arranged at the top of the first pressure sensing body 31, a second transfer hole 342 is formed in the middle of the circular encapsulation plate 34, and a spring 341 is arranged between the circular encapsulation plate 34 and the pressure sensing moving module 35; the elastic moduli of the springs 341 inside different pressure sensing modules 3 are the same or different;

[0031] The second pressure-sensitive body 32 is a hollow cylinder with a diameter larger than that of the first pressure-sensitive body 31, and the second pressure-sensitive body 32 is arranged at the bottom of the first pressure-sensitive body 31; inside the second pressure-sensitive body 32, there are arranged an elastic first pressure-sensitive hemisphere 36, an elastic second pressure-sensitive hemisphere 37 and an elastic pressure-sensitive diaphragm 38. The curved surface side of the first pressure-sensitive hemisphere 36 contacts the curved surface side of the second pressure-sensitive hemisphere 37. The flat surface side of the first pressure-sensitive hemisphere 36 is connected to the bottom of the pressure-sensitive moving module 35, and the flat surface side of the second pressure-sensitive hemisphere 37 is connected to the top of the pressure-sensitive diaphragm 38; the pressure-sensitive diaphragm 38 is hermetically arranged at the bottom inside the second pressure-sensitive body 32; the adapter 33 is arranged at the bottom of the second pressure-sensitive body 32 and is used to communicate with an external pressure transmission pipe (such as a liquid transmission pipe or a gas transmission pipe).

[0032] Optionally, as Figure 6 shown, the pressure-sensitive moving module 35 includes a pressure transmission rod 351, a first circular guide plate 352, a pressure transmission plate 353 and a second circular guide plate 355 which are arranged in sequence from top to bottom; a water-drop-shaped through hole 354 is arranged in the middle of the pressure transmission plate 353; a circular electrode 356 is arranged at the top of the pressure transmission rod 351; the diameter of the pressure transmission rod 351, the diameter of the second transmission hole 342 and the diameter of the first transmission hole 24 are the same, and the pressure transmission rod 351 can pass through the second transmission hole 342 and the first transmission hole 24 without resistance; the diameters of the first circular guide plate 352 and the second circular guide plate 355 are the same and match the inner diameter of the first pressure-sensitive body 31; the diameter of the pressure transmission rod 351 is smaller than the diameter of the first circular guide plate 352; the lateral dimension of the pressure transmission plate 353 is smaller than the diameter of the first circular guide plate 352.

[0033] Optionally, as Figure 6 shown, a through first guide hole 311 and a second guide hole 312 are concentrically arranged in the radial direction of the first pressure-sensitive body 31, and the first guide hole 311 and the second guide hole 312 are arranged above the water-drop-shaped through hole 354.

[0034] Optionally, as Figure 4As shown, inside the cylindrical body 21, four first communication holes 27 and four second communication holes 28 are radially formed in the cylindrical body 21. The first communication holes 27 and the second communication holes 28 are respectively arranged outside the sensing holes 23. The first communication holes 27 connect the circular holes 22 and the sensing holes 23, and the second communication holes 28 connect the sensing holes 23 and the outside of the cylindrical body 21. The first communication holes 27, the second communication holes 28, the first guiding holes 311 and the second guiding holes 312 are concentrically arranged. A third communication hole 29 is formed above the second communication hole 28, and the third communication hole 29 connects the upper part of the cylindrical body 21 and the second communication hole 28.

[0035] Optionally, as Figure 3 shown, a light source 13 is arranged inside the first communication hole 27. A photosensitive element 14 is arranged on the inner side of the second communication hole 28 facing inwards, and a light-emitting element 15 is arranged on the outer side of the second communication hole 28 facing outwards. The light source 13, the photosensitive element 14, and the light-emitting element 15 are all electrically connected to the control module. The light source 13 is used to irradiate the pressure-sensing moving module 35, and the photosensitive element 14 is used to receive the light passing through the pressure-sensing moving module 35. The measurement of the sensed pressure is realized by the magnitude of the optical power received by the photosensitive element 14. The light-emitting element 15 emits green light when the sensed pressure is normal and emits red light when the sensed pressure is abnormal.

[0036] Optionally, as Figure 5 shown, two optical fiber through holes 321 are radially formed in the second pressure-sensing body 32. An elastic tube 39 is arranged inside the optical fiber through holes 321, and the elastic tube 39 is arranged between the first pressure-sensing hemisphere 36 and the second pressure-sensing hemisphere 37. The pressure-sensing optical fiber can pass through the elastic tube 39 to realize higher-precision pressure measurement. Four pressure-sensing gratings with different wavelengths (i.e., λ1, λ2, λ3, λ4) are arranged on the pressure-sensing optical fiber. The grating can reflect laser light with a specified wavelength, and the pressure measurement is realized through the wavelength change. The pressure-sensing optical fiber is used for the calibration of the photosensitive element 14, or, in order to improve the measurement accuracy, the pressure-sensing optical fiber is used as the pressure measurement module.

[0037] Optionally, the alarm module is a horn or a buzzer.

[0038] Optionally, the power supply module is a battery.

[0039] Optionally, the alarm module 1 further includes a wireless transmission module, and the wireless transmission module is electrically connected to the control module. The wireless transmission module is used to connect an external mobile terminal or control terminal.

[0040] Working principle of the alarm device for the four-chamber water supply unit: The pressure transfer pipes are respectively connected to the sterilization tank, the negative pressure elimination tank, the water quality analysis tank, and the pressure stabilizing and compensating tank and the adapter 33 in the pressure sensing module 3 to introduce liquid / gas into the interior of the pressure sensing module 3. The pressure of the liquid / gas is transmitted to the pressure sensing moving module 35 through the pressure sensing diaphragm 38, the second pressure sensing hemisphere 37, and the first pressure sensing hemisphere 36. According to different sensed pressures, the upward movement distance of the pressure sensing moving module 35 is different, that is, the optical power passing through the water droplet-shaped through hole 354 is different. By receiving the magnitude of the optical power by the photosensitive element 14, the measurement of the sensed pressure is realized. When the set threshold is exceeded, the circular electrode 356 at the top of the pressure sensing moving module 35 is connected to the first electrode ring 11 and the second electrode ring 12, and the alarm module emits an alarm prompt sound. In addition, springs 341 with different elastic moduli can be replaced according to different range requirements to improve applicability.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. Alarm device for four-chamber water supply unit, including: Alarm module, monitoring body and pressure sensing module; The alarm module includes a hollow cylindrical shell, a display module, a control module, an alarm module and a power supply module; the display module is arranged outside the shell, and the control module, the alarm module and the power supply module are arranged inside the shell, and the control module is electrically connected with the display module and the alarm module; the power supply module is used for power supply inside the alarm module; The monitoring body comprises a cylindrical body, a circular hole is provided in the middle of the cylindrical body from top to bottom; four non-through sensing holes are provided around the circular hole from bottom to top; four first transfer holes are provided on the upper side of the cylindrical body, the first transfer holes are concentric with and connected to the sensing holes; a first annular groove and a second annular groove are provided on the upper side of the cylindrical body, the diameter of the first annular groove is larger than that of the second annular groove, the first annular groove partially overlaps with the first transfer hole and is provided on the outer side of the first transfer hole, and the second annular groove partially overlaps with the first transfer hole and is provided on the inner side of the first transfer hole; a first electrode ring is provided inside the first annular groove, and a second electrode ring is provided inside the second annular groove, the first electrode ring and the second electrode ring are electrically connected to the control module, and when the control module senses that the two electrode rings are connected, the alarm module is controlled to emit an alarm prompt sound; The number of the pressure sensing modules is 4, which are correspondingly arranged inside the sensing holes. The pressure sensing modules are respectively connected to the sterilization tank, negative pressure elimination tank, water quality analysis tank and pressure stabilizing compensation tank in the four-chamber water supply unit, and are connected to the first electrode ring and the second electrode ring when the pressure exceeds the set threshold.

2. The alarm device according to claim 1, characterized in that: in, The pressure sensing module comprises a first pressure sensing body, a second pressure sensing body and an adapter; the first pressure sensing body is a hollow cylinder, and a pressure sensing moving module is arranged inside the first pressure sensing body; a circular packaging plate is arranged on the top of the first pressure sensing body, a second transmission hole is opened in the middle of the circular packaging plate, and a spring is arranged between the circular packaging plate and the pressure sensing moving module; the elastic moduli of the springs inside different pressure sensing modules are the same or different; The second pressure-sensing body is a hollow cylinder with a diameter larger than that of the first pressure-sensing body. The second pressure-sensing body is arranged at the bottom of the first pressure-sensing body. An elastic first pressure-sensing hemisphere, an elastic second pressure-sensing hemisphere and an elastic pressure-sensing diaphragm are arranged inside the second pressure-sensing body. The curved surface of the first pressure-sensing hemisphere contacts the curved surface of the second pressure-sensing hemisphere, the flat surface of the first pressure-sensing hemisphere is connected to the bottom of the pressure-sensing moving module, and the flat surface of the second pressure-sensing hemisphere is connected to the top of the pressure-sensing diaphragm. The pressure-sensing diaphragm is sealed at the bottom of the inner side of the second pressure-sensing body. The adapter is arranged at the bottom of the second pressure-sensing body for connecting to an external pressure transmission pipe.

3. The alarm device according to claim 2, characterized in that: in, The pressure-sensing movement module includes a pressure transmission rod, a first circular guide plate, a pressure transmission plate and a second circular guide plate which are arranged in sequence from top to bottom; a water drop-shaped through hole is arranged in the middle of the pressure transmission plate; a circular electrode is arranged on the top of the pressure transmission rod; the diameter of the pressure transmission rod, the diameter of the second transmission hole and the diameter of the first transmission hole are the same, and the pressure transmission rod can pass through the second transmission hole and the first transmission hole without resistance; the diameter of the first circular guide plate is the same as that of the second circular guide plate and matches the inner diameter of the first pressure-sensing body; the diameter of the pressure transmission rod is smaller than the diameter of the first circular guide plate; the lateral dimension of the pressure transmission plate is smaller than the diameter of the first circular guide plate.

4. The alarm device according to claim 3, characterized in that: in, The first pressure-sensing body is radially and concentrically provided with a first guide hole and a second guide hole that penetrate therethrough. The first guide hole and the second guide hole are arranged on the upper side of the teardrop-shaped through hole.

5. The alarm device according to claim 4, characterized in that: in, Inside the cylindrical body, four first communicating holes and four second communicating holes are opened along the radial direction of the cylindrical body, the first communicating holes and the second communicating holes are respectively arranged outside the sensing hole, the first communicating holes communicate with the circular hole and the sensing hole, and the second communicating holes communicate with the sensing hole and the outside of the cylindrical body; The first connecting hole, the second connecting hole, the first guide hole and the second guide hole are arranged concentrically; a third connecting hole is opened on the upper side of the second connecting hole, and the third connecting hole connects the upper part of the cylindrical body with the second connecting hole.

6. The alarm device according to claim 5, characterized in that: in, A light source is arranged inside the first connecting hole, a photosensitive element is arranged on the inward side of the second connecting hole, and a light-emitting element is arranged on the outward side of the second connecting hole; the light source, the photosensitive element, and the light-emitting element are all electrically connected to the control module; the light source is used to illuminate the pressure-sensing mobile module, and the photosensitive element is used to receive light passing through the pressure-sensing mobile module; the measurement of the sensed pressure is achieved by receiving the size of the light power by the photosensitive element; the light-emitting element emits green light when the sensed pressure is normal, and emits red light when the sensed pressure is abnormal.

7. The alarm device according to claim 6, characterized in that: in, Two optical fiber through holes are opened along the radial direction of the second pressure-sensing body, and an elastic tube is arranged inside the optical fiber through hole, and the elastic tube is arranged between the first pressure-sensing hemisphere and the second pressure-sensing hemisphere; the pressure-sensitive optical fiber can pass through the elastic tube; the pressure-sensitive optical fiber is used for calibration of the photosensitive element, or the pressure-sensitive optical fiber is used as a pressure measurement module.

Citation Information

Patent Citations

  • Four-cavity water supply unit

    CN110984288A

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    CN118292521A