Adjustable pressure alarm

Abstract

The utility model discloses an adjustable pressure alarm which comprises a machine body shell, a diaphragm, an ejector rod, a static contact piece, a power connection piece, a movable contact piece and an adjusting assembly are sequentially arranged in the machine body shell from top to bottom, and the ejector rod sequentially penetrates through the static contact piece, the power connection piece and the movable contact piece. The adjusting assembly comprises a wiring terminal arranged at the upper end of the machine body shell, a threaded connecting piece arranged along the lower end of the wiring terminal, an adjusting piece adjustably arranged along the lower end of the threaded connecting piece, and an elastic piece arranged at the lower end of the adjusting piece. The elastic piece is arranged on the ejector rod in a sleeving mode and connected with the movable contact piece in an abutting mode. The pressure alarm is reasonable in structural design, the diaphragm, the ejector rod, the static contact piece, the power connection piece, the movable contact piece and the adjusting assembly are arranged in the machine body shell, the adjusting assembly can flexibly adjust the pressure of the elastic piece on the movable contact piece, then the alarm pressure threshold value is changed, the alarm can adapt to the requirements of different pressure monitoring scenes, and the use is convenient. And the universality and the flexibility of the alarm are improved.

Description

Technical Field

[0001] This utility model relates to the field of adjustable pressure alarm. Background Technology

[0002] Pressure alarms play a crucial role in industrial production, fluid transportation, and various scenarios involving pressure monitoring. They can monitor the pressure within the system in real time and issue timely alarms when the pressure exceeds or falls below a set threshold, thereby ensuring the safety of equipment and personnel and preventing production accidents and equipment damage caused by abnormal pressure.

[0003] Currently, common pressure alarms on the market have some shortcomings. Some traditional pressure alarms have fixed alarm pressure thresholds, which cannot be flexibly adjusted according to different needs in actual use scenarios. Fixed-threshold pressure alarms struggle to meet the diverse needs of different pressure alarm scenarios, limiting their application in complex and variable production environments. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an adjustable pressure alarm, based on the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an adjustable pressure alarm includes a housing, in which a diaphragm, a push rod, a stationary contact piece, a contact piece, a moving contact piece, and an adjustment component are arranged sequentially from bottom to top. The push rod passes through the stationary contact piece, the contact piece, and the moving contact piece in sequence. The adjustment component includes a terminal block disposed at the upper end of the housing, a threaded connector disposed at the lower end of the terminal block, an adjustable member disposed at the lower end of the threaded connector, and an elastic member disposed at the lower end of the adjustable member. The elastic member is sleeved on the push rod and abuts against the moving contact piece.

[0006] The aforementioned components achieve the following effect: by setting up a housing, and arranging a diaphragm, push rod, stationary contact plate, electrical contact plate, moving contact plate, and adjustment assembly sequentially from bottom to top within it, with the stationary contact plate, electrical contact plate, and moving contact plate passing through the push rod in sequence, and the adjustment assembly including a terminal block at the upper end of the housing, a threaded connector at the lower end of the terminal block, an adjustable element at the lower end of the threaded connector, and an elastic element at the lower end of the adjustable element, the elastic element being sleeved on the push rod and contacting the moving contact plate. This achieves integrated pressure alarm functionality, with each component working collaboratively. The pressure of the elastic element on the moving contact plate can be flexibly adjusted through the adjustment assembly, thereby changing the alarm pressure threshold. This allows the alarm to adapt to the needs of different pressure monitoring scenarios, improving the versatility and flexibility of the alarm.

[0007] Preferably, the inner part of the housing is divided into an upper chamber and a lower chamber along the diaphragm, and the housing is provided with a liquid inlet channel along the lower chamber.

[0008] The aforementioned components achieve the following effect: by dividing the internal space of the housing into an upper chamber and a lower chamber along the diaphragm, and providing a liquid inlet channel along the lower chamber, the internal space is rationally divided. The liquid inlet channel allows external liquids or gases to enter the lower chamber, act on the diaphragm, and transmit pressure through diaphragm deformation, thereby triggering the alarm mechanism. This clearly defines the pressure transmission path, improves the accuracy and stability of pressure detection, and facilitates adaptation to different pressure sources, enhancing the applicability of the alarm in various pressure detection scenarios.

[0009] Preferably, a sealing ring is provided at the lower end of the diaphragm along the lower cavity.

[0010] The effect achieved by the above-mentioned components is as follows: By setting a sealing ring along the lower cavity at the lower end of the diaphragm, the sealing ring can effectively prevent liquid or gas in the lower cavity from seeping upwards and contacting the internal electrical components of the alarm, such as stationary contacts, contact plates, and moving contacts. This avoids damage to electrical components due to liquid or gas corrosion, greatly improves the sealing performance and reliability of the alarm in harsh working environments, and extends the service life of the alarm.

[0011] Preferably, a threaded seat is provided at the lower end of the housing.

[0012] The effect achieved by the aforementioned components is as follows: A threaded seat extends from the lower end of the housing. This threaded seat allows the alarm to be easily and quickly installed on various equipment or pipelines via a threaded connection. Compared to other complex installation methods, threaded connections offer advantages such as simple and stable installation, reducing installation difficulty and time. Simultaneously, it ensures that the alarm will not loosen due to vibration or other reasons during equipment operation, thus improving installation stability and the reliability of the alarm's operation.

[0013] Preferably, both the wiring terminal and the adjusting component are threadedly connected to the threaded connector.

[0014] The aforementioned components achieve the following effect: by connecting the terminals and adjusting parts to the threaded connections, the stability of the connections between components is ensured. This prevents the stability of the terminals from being easily affected when adjusting the adjusting parts, thus ensuring reliable electrical connections. Simultaneously, the threaded connections facilitate easy disassembly and reinstallation when a component needs repair or replacement, improving the maintainability of the alarm and reducing maintenance costs.

[0015] Preferably, the terminal block includes, from top to bottom, a bolt, a washer, and a gasket.

[0016] The aforementioned components achieve the following effects: by incorporating bolts, washers, and gaskets into the wiring terminals, the bolts secure the wiring, ensuring the stability of the electrical connection; the washers distribute the pressure of the bolts on the connectors, preventing damage to the connector surfaces and enhancing sealing; and the gaskets further enhance the stability and conductivity of the connection. This comprehensively improves the performance of the wiring terminals, ensuring the reliability of the alarm's electrical connection, reducing alarm malfunctions caused by poor contact, and enhancing the overall stability and reliability of the alarm system.

[0017] Compared with existing technologies, the advantages of this utility model are as follows: By arranging a diaphragm, push rod, stationary contact plate, electrical contact plate, moving contact plate, and adjustment component within the housing, the various parts of the adjustment component work together to flexibly adjust the alarm pressure threshold, enhancing versatility and flexibility. The housing is divided into upper and lower chambers along the diaphragm, with a liquid inlet channel in the lower chamber, clearly defining the pressure transmission path and improving detection accuracy and scenario applicability. The sealing ring at the lower end of the diaphragm effectively prevents liquid or gas penetration, protecting electrical components, improving sealing and reliability, and extending service life. The threaded seat at the lower end of the housing facilitates the installation of the alarm on various equipment or pipelines, ensuring simple and stable installation. The wiring terminals and adjustment components are connected via threads and threaded connectors, ensuring a stable connection and facilitating component maintenance and replacement, improving maintainability. The wiring terminals include a bolt, washer, and shim design, comprehensively improving the stability and conductivity of the electrical connection, reducing alarm malfunctions, and ensuring stable and reliable operation of the alarm. Attached Figure Description

[0018] Figure 1 This is an exploded structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model.

[0021] Reference numerals: 1. Body housing; 2. Diaphragm; 3. Push rod; 4. Stationary contact piece; 5. Electrical contact piece; 6. Moving contact piece; 7. Adjustment assembly; 8. Terminal block; 9. Threaded connector; 10. Adjustment component; 11. Elastic component; 12. Upper chamber; 13. Lower chamber; 14. Liquid inlet channel; 15. Sealing ring; 16. Threaded seat; 17. Bolt; 18. Washer; 19. Gasket. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0025] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] In this embodiment 1,

[0028] like Figures 1 to 3 As shown, this utility model provides an adjustable pressure alarm, including a housing 1. Inside the housing 1, a diaphragm 2, a push rod 3, a stationary contact piece 4, a contact piece 5, a moving contact piece 6, and an adjustment assembly 7 are arranged sequentially from bottom to top. The push rod 3 passes through the stationary contact piece 4, the contact piece 5, and the moving contact piece 6 in sequence. The adjustment assembly 7 includes a terminal block 8 at the upper end of the housing 1, a threaded connector 9 at the lower end of the terminal block 8, an adjustable member 10 at the lower end of the threaded connector 9, and an elastic member 11 at the lower end of the adjustable member 10. The elastic member 11 is sleeved on the push rod 3 and abuts against the moving contact piece 6.

[0029] By configuring a housing 1, and arranging a diaphragm 2, a push rod 3, a stationary contact 4, a contact 5, a moving contact 6, and an adjustment assembly 7 sequentially from bottom to top within the housing 1, with the push rod 3 passing through the stationary contact 4, the contact 5, and the moving contact 6, and the adjustment assembly 7 including a terminal block 8 at the upper end of the housing 1, a threaded connector 9 at the lower end of the terminal block 8, an adjustable adjustment element 10 at the lower end of the threaded connector 9, and an elastic element 11 at the lower end of the adjustment element 10, the elastic element 11 being sleeved on the push rod 3 and in contact with the moving contact 6, this structural design achieves integrated pressure alarm functionality. All components work collaboratively, and the pressure of the elastic element 11 on the moving contact 6 can be flexibly adjusted via the adjustment assembly 7, thereby changing the alarm pressure threshold. This allows the alarm to adapt to the needs of different pressure monitoring scenarios, improving its versatility and flexibility.

[0030] The inner part of the housing 1 is divided into an upper chamber 12 and a lower chamber 13 along the diaphragm 2. The housing 1 is provided with a liquid inlet channel 14 along the lower chamber 13.

[0031] The internal space of the housing 1 is divided into an upper chamber 12 and a lower chamber 13 along the diaphragm 2. A liquid inlet channel 14 is provided along the lower chamber 13 of the housing 1. This reasonable division of the internal space allows external liquids or gases to enter the lower chamber 13, act on the diaphragm 2, and transmit pressure through the deformation of the diaphragm 2, thereby triggering the alarm mechanism. This clearly defines the pressure transmission path, improves the accuracy and stability of pressure detection, and also facilitates adaptation to different pressure sources, enhancing the applicability of the alarm in various pressure detection scenarios.

[0032] A sealing ring 15 is provided at the lower end of the diaphragm 2 along the lower cavity.

[0033] A sealing ring 15 is provided at the lower end of the diaphragm 2 along the lower cavity. This sealing ring 15 can effectively prevent liquid or gas in the lower cavity 13 from seeping upwards and contacting the electrical components inside the alarm, such as the stationary contact piece 4, the contact piece 5, and the moving contact piece 6. This avoids damage to the electrical components due to liquid or gas corrosion, greatly improves the sealing performance and reliability of the alarm in harsh working environments, and extends the service life of the alarm.

[0034] A threaded seat 16 is provided at the lower end of the fuselage housing 1.

[0035] A threaded seat 16 is provided extending from the lower end of the housing 1. The threaded seat 16 allows the alarm to be easily and quickly installed on various equipment or pipelines via a threaded connection. Compared with other complex installation methods, the threaded connection has the advantages of simple and stable installation, reducing installation difficulty and time. At the same time, it ensures that the alarm will not loosen due to vibration or other reasons during equipment operation, thereby improving the stability of the installation and the reliability of the alarm operation.

[0036] Both the terminal block 8 and the adjusting component 10 are threadedly connected to the threaded connector 9.

[0037] By connecting both the terminal block 8 and the adjusting member 10 to the threaded connector 9, the stability of the connection between the components is ensured. This prevents the stability of the terminal block 8 from being easily affected when adjusting the adjusting member 10, thus ensuring reliable electrical connection. Simultaneously, the threaded connection facilitates easy disassembly and reinstallation when a component needs repair or replacement, improving the maintainability of the alarm and reducing maintenance costs.

[0038] The terminal block 8 includes, from top to bottom, a bolt 17, a washer 18, and a gasket 19.

[0039] The wiring terminal 8 includes a bolt 17, a washer 18, and a gasket 19. The bolt 17 secures the wiring, ensuring the stability of the electrical connection; the washer 18 distributes the pressure of the bolt 17 on the connector, preventing damage to the connector surface and enhancing sealing; the gasket 19 further enhances the stability and conductivity of the connection. This comprehensively improves the performance of the wiring terminal 8, ensuring the reliability of the alarm's electrical connection, reducing alarm malfunctions caused by poor contact, and improving the overall stability and reliability of the alarm.

[0040] In this embodiment 2,

[0041] like Figures 1 to 3As shown, this utility model arranges a diaphragm 2, a push rod 3, a stationary contact piece 4, a connecting piece 5, a moving contact piece 6, and an adjustment assembly 7 within the housing 1. The various parts of the adjustment assembly 7 work together to flexibly adjust the alarm pressure threshold, enhancing versatility and flexibility. The housing 1 is divided into an upper chamber 12 and a lower chamber 13 along the diaphragm 2, with the lower chamber 13 having a liquid inlet channel 14, clearly defining the fluid conduction path and improving detection accuracy and scenario applicability. The sealing ring 15 at the lower end of the diaphragm 2 effectively prevents fluid penetration, protects internal components, improves sealing and reliability, and extends service life. The threaded seat 16 at the lower end of the housing 1 facilitates the installation of the alarm on various equipment or pipelines, ensuring simple and stable installation. The wiring terminal 8 and the adjustment component 10 are connected via threads and threaded connectors 9, ensuring a stable connection and facilitating component maintenance and replacement, improving maintainability. The wiring terminal 8 includes a bolt 17, a washer 18, and a gasket 19, comprehensively improving the stability and conductivity of the electrical connection, reducing alarm malfunctions, and ensuring stable and reliable operation of the alarm.

[0042] In this embodiment 3,

[0043] like Figures 1 to 3 As shown, the sealing ring 15 provided at the lower end of the diaphragm 2 along the lower chamber 13 can effectively prevent the pressure medium in the lower chamber 13 from seeping upward, avoid damage to the internal components of the alarm, and ensure that the alarm works stably and reliably.

[0044] The threaded seat 16 extending from the lower end of the housing 1 facilitates the installation of the alarm on various equipment or pipelines requiring pressure monitoring. The terminal block 8, from top to bottom, includes a bolt 17, a washer 18, and a gasket 19. This design ensures a good electrical connection; the bolt 17 secures the wiring, the washer 18 distributes pressure and enhances sealing, and the gasket 19 further improves the stability and conductivity of the connection. Simultaneously, both the terminal block 8 and the adjusting component 10 are threadedly connected to the threaded connector 9, ensuring a secure connection for all components and facilitating maintenance and replacement when needed.

[0045] In this embodiment 4,

[0046] like Figures 1 to 3 As shown, the working principle of this utility model is as follows:

[0047] When fluid enters the lower chamber 13 through the inlet channel 14 of the housing 1, pressure is applied to the diaphragm 2. The diaphragm 2 deforms under pressure, which in turn pushes the connected push rod 3 upward.

[0048] The push rod 3 passes sequentially through the stationary contact piece 4, the contact piece 5, and the moving contact piece 6. The movement of the push rod 3 will cause the stationary contact piece 4 to move upward. The elastic element 11 in the adjusting assembly 7 is sleeved on the push rod 3 and abuts against the moving contact piece 6. The elastic element 11 will apply a downward elastic force to the moving contact piece 6.

[0049] By adjusting the adjusting member 10, which is threadedly connected to the threaded connector 9, rotating the adjusting member 10 can move it up and down along the threaded connector 9, thereby changing the degree of compression of the elastic member 11, and thus adjusting the magnitude of the downward elastic force of the elastic member 11 on the moving contact piece 6, thereby setting different pressure alarm thresholds.

[0050] When the fluid pressure increases to a certain level, the diaphragm 2 pushes up the push rod 3, causing the stationary contact plate 4 to move upward until the moving contact plate 6 contacts the stationary contact plate 4. At this time, the connecting piece 5, the stationary contact plate 4, and the moving contact plate 6 form a closed circuit, and the alarm can then be connected to an external circuit through the wiring terminal 8 to send an alarm signal, indicating that the pressure exceeds the set value.

[0051] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0052] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An adjustable pressure alarm comprising a body housing, characterised in that: The housing contains, from top to bottom, a diaphragm, a push rod, a stationary contact plate, a contact plate, a moving contact plate, and an adjustment assembly. The push rod passes through the stationary contact plate, the contact plate, and the moving contact plate in sequence. The adjustment assembly includes a terminal block located at the upper end of the housing, a threaded connector located at the lower end of the terminal block, an adjustable member located at the lower end of the threaded connector, and an elastic member located at the lower end of the adjustable member. The elastic member is sleeved on the push rod and abuts against the moving contact plate.

2. An adjustable pressure alarm according to claim 1, wherein: The inner casing is divided into an upper chamber and a lower chamber along the diaphragm, and the inner casing is provided with a liquid inlet channel along the lower chamber.

3. An adjustable pressure alarm according to claim 2, wherein: A sealing ring is provided at the lower end of the diaphragm along the lower cavity.

4. An adjustable pressure alarm according to claim 3, wherein: A threaded seat is provided at the lower end of the fuselage housing.

5. An adjustable pressure alarm according to claim 4, wherein: Both the wiring terminals and the adjusting components are threadedly connected to the threaded connectors.

6. An adjustable pressure alarm according to claim 5, wherein: The terminal block consists of a bolt, a washer, and a gasket from top to bottom.

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