Needle touch type alarm pressure gauge

Abstract

The utility model discloses a pin touch type alarm pressure gauge which comprises a pressure gauge body, an alarm and a battery. The pressure gauge body comprises a shell, a dial plate and a pressure gauge movement which are arranged in the shell, and a pointer connected with the pressure gauge movement; an arc-shaped sliding groove is formed in the dial plate, a contact device is arranged on the arc-shaped sliding groove in a sliding mode, the pointer is an electric conductor, and the tip end of the pointer can be in matched conduction with the contact device; the shell is provided with at least one alarm and an alarm lamp, the rear end in the shell is provided with an installation groove body, a battery and a controller are arranged in the installation groove body, and the contact device, the alarm and the alarm lamp are all electrically connected with the controller. The pressure gauge is simple in structure and convenient to use, through cooperation of the pointer and the contact device, conduction of the alarm circuit is achieved, then alarm warning is carried out, undervoltage information of the fire extinguisher can be provided in time, the fire extinguisher is prevented from serving due to undervoltage with diseases, and potential safety hazards of a user are eliminated.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, specifically to a needle-type alarm pressure gauge. Background Technology

[0002] As essential safety protection products in modern society, fire protection products, including pressure gauges, are indispensable. Pressure gauges utilize the elastic deformation of sensitive elements (Bourdon tube, diaphragm, bellows, etc.) within their internal mechanisms. This deformation is transmitted to a pointer, causing the pointer to rotate and display the pressure. For example, fire extinguishers often lack warning signs, leading to safety hazards when needed due to low pressure. For pressurized fire extinguishers, regular checks are necessary. To easily read the pressure inside the cylinder, a pressure gauge is commonly connected to the extinguisher cylinder. However, traditional pressure gauges for fire extinguishers can only indicate the initial pressure and cannot alert for low pressure.

[0003] Application No. 201410148913.8 discloses a fire extinguisher red light alarm, comprising a fire extinguisher cylinder (1), a fixing ring (2), a nozzle (4), a handle (5), a safety pull ring (6), and a pressure gauge (11) connected in sequence. The invention is characterized by a miniature alarm (9) fixed outside the pressure gauge (11), a dial (7) installed inside the pressure gauge (11), a pointer (3) installed on the dial (7), a reed switch (8) installed on the dial (7) below the pressure warning line, a red LED (10) installed on the lower left of the dial (7), and a button battery (12) installed on the lower right of the dial (7). This invention is designed to conveniently and intuitively detect fire extinguisher pressure leaks. When the fire extinguisher pressure falls below the warning line, the pressure gauge pointer begins to slide down to the red warning zone. At this time, because the pointer is magnetic, the reed switch is activated, and the red LED and the miniature alarm simultaneously light up and sound, attracting attention and reminding people to take timely action. Although this invention enables fire extinguishers under low pressure to automatically trigger an audible and visual alarm, using a reed switch as the alarm switch for the pressure gauge has the following problems: 1. Reed switches are relatively difficult to install; 2. Reed switches require the use of magnets, and magnetic attraction works as long as there is a certain space, which affects the detection sensitivity of the pressure gauge and results in low accuracy.

[0004] Therefore, a needle-type alarm pressure gauge is proposed to address the current shortcomings. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a needle-type alarm pressure gauge.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a needle-type alarm pressure gauge, which includes a pressure gauge body, an alarm and a battery;

[0007] The pressure gauge body includes a housing, a dial and a pressure gauge movement installed inside the housing, and a pointer connected to the pressure gauge movement;

[0008] The dial is provided with an arc-shaped sliding groove, and a contact device is slidably mounted on the arc-shaped sliding groove. The pointer is a conductor and its tip can cooperate with the contact device to conduct electricity.

[0009] The housing is equipped with at least one alarm and an alarm light. The rear end of the housing is provided with a mounting groove, which contains a battery and a controller. The contact device, alarm, and alarm light are all electrically connected to the controller.

[0010] As an improvement, the contact device includes a sliding seat, a contact, and a terminal block. One end of the sliding seat passes through an arc-shaped sliding groove and is threadedly connected to the terminal block. The contact is fixedly mounted on the sliding seat and has a slot that cooperates with the pointer.

[0011] As an improvement, the arc-shaped sliding groove is arc-shaped and is set along the extension direction of the dial scale.

[0012] As an improvement, the number of alarms is two and they are symmetrically arranged on both sides of the upper part of the housing, and the alarm light is arranged between the alarms.

[0013] As an improvement, the alarm is installed inside the housing and its speaker extends to the outside of the housing.

[0014] As an improvement, a partition plate that is threadedly connected to the housing is provided inside the housing between the mounting groove and the pressure gauge movement.

[0015] As an improvement, a charging port is also included, which is located at the rear end of the housing and electrically connected to the battery.

[0016] As an improvement, the alarm is a buzzer alarm.

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] 1. By cooperating with the pointer and the contact device set on the dial, the alarm circuit can be turned on, and then the alarm and / or the alarm light can be controlled by the controller to trigger the alarm.

[0019] 2. The movable setting of the contact device on the dial can meet the alarm warning requirements of different pressure requirements. At the same time, the slot on the contact head that cooperates with the pointer can ensure the stability of the cooperation between the pointer and the contact device and improve the accuracy of the alarm.

[0020] 3. By integrating the alarm, alarm light, battery and controller into the pressure gauge, the automatic alarm function is achieved while reducing its size and making it convenient for actual use.

[0021] 4. This pressure gauge has a simple structure and is easy to use. Through the cooperation of the pointer and the contact device, the alarm circuit is turned on, thereby providing an alarm warning. It can provide information on the low pressure of the fire extinguisher in a timely manner, preventing the fire extinguisher from being used under pressure and eliminating safety hazards for users. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front structure of a needle-type alarm pressure gauge according to this utility model.

[0023] Figure 2 This is a schematic diagram of the rear structure of a needle-type alarm pressure gauge according to this utility model.

[0024] Figure 3 This is a front view of a needle-type alarm pressure gauge according to this utility model.

[0025] Figure 4 yes Figure 3 Sectional view at point AA.

[0026] Figure 5 yes Figure 3 Sectional view at point BB.

[0027] Figure 6 yes Figure 5 A magnified view of a section at point C.

[0028] Figure 7 This is a schematic diagram of the contact device in a needle-type alarm pressure gauge according to this utility model.

[0029] Figure 8 This is a circuit diagram of a needle-type alarm pressure gauge according to the present invention.

[0030] As shown in the figure:

[0031] 1. Pressure gauge body; 11. Housing; 12. Dial; 13. Pointer;

[0032] 2. Alarm device; 3. Battery; 4. Arc-shaped sliding groove;

[0033] 5. Contact device; 51. Sliding seat; 52. Contact; 53. Terminal block; 54. Slot;

[0034] 6. Alarm light, 7. Mounting slot, 8. Controller, 9. Partition, 10. Charging port. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the utility model embodiments clearer, the technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The components of the utility model embodiments described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0036] In the description of the embodiments of the utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the utility model embodiments, "a plurality of" means at least two.

[0039] In the description of the embodiments of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0040] As shown in the attached diagram, a needle-type alarm pressure gauge can automatically alarm when a fire extinguisher experiences a low pressure condition during use and storage, prompting timely maintenance and ensuring that any substandard fire extinguisher products within the fire protection area can be repaired or replaced in a timely manner.

[0041] The pressure gauge includes a pressure gauge body 1, an alarm 2, and a battery 3;

[0042] The pressure gauge body 1 includes a housing 11, a dial 12 installed inside the housing 11 and a pressure gauge movement, and a pointer 13 connected to the pressure gauge movement; in this embodiment, the pressure gauge movement is an existing structure, and the pressure gauge movement is made of metal material.

[0043] In a specific implementation, the housing 11 includes an outer shell and a cover with a glass panel. The cover is threadedly connected to the outer shell, which facilitates the later maintenance and replacement of its internal structure.

[0044] The dial 12 is provided with an arc-shaped sliding groove 4. The contact device 5 can be adjusted to different positions on the dial 12 through the arc-shaped sliding groove 4, so as to realize the cooperation between the contact device 5 and different pressure values ​​on the dial 12, so that the pressure gauge can alarm under different pressure values ​​and increase the application range of the pressure gauge.

[0045] Specifically, the arc-shaped sliding groove 4 is arc-shaped and extends along the scale of the dial 12. The starting end of the arc-shaped sliding groove 4 corresponds to the 0 mark on the dial 12. The length of the arc-shaped sliding groove 4 can be determined according to the actual adjustment range of the contact device 5 on the dial 12.

[0046] A contact device 5 is slidably mounted on the arc-shaped sliding groove 4. The contact device 5 is made of metal and includes a sliding seat 51, a contact 52, and a terminal block 53. One end of the sliding seat 51 passes through the arc-shaped sliding groove 4 and is threadedly connected to the terminal block 53. The threaded connection between the sliding seat 51 and the terminal block 53 ensures that the position of the contact device 5 on the dial 12 can be adjusted along the arc-shaped sliding groove 4, and also ensures that the relative position between the contact device 5 and the dial 12 is fixed. The contact 52 is fixedly mounted on the sliding seat 51 and has a slot 54 that cooperates with the pointer 13. The contact 52 and the pointer 13 achieve conduction through contact. In specific implementation, the slot 54 on the contact 52 ensures the stability of the cooperation between the pointer 13 and the contact 52. At the same time, the height of the slot 54 is greater than the thickness of the pointer 13, which ensures the movement of the pointer 13 within the slot 52.

[0047] The pointer 13 is a conductor and its tip can be connected with the contact device 5. In this embodiment, the pressure gauge movement is made of metal material, and the pointer 13 is also a conductor made of metal material, so that the pointer 13 and the pressure gauge movement can be connected by electricity.

[0048] In practical implementation, the cooperation between the pointer 13 and the contact 52 realizes the switching function. Through the cooperation and separation between the pointer 13 and the contact 52, the circuit is turned on and off, thereby realizing the control of the alarm 2 and the alarm light 6. Under the normal use state of the pressure gauge, the pointer 13 and the contact 52 are in the separated state.

[0049] Furthermore, in this embodiment, the dial 12 is made of insulating material to prevent the contact device 5 from being directly energized and connected to the pressure gauge movement through the dial 12.

[0050] The housing 11 is equipped with at least one alarm 2 and an alarm light 6. The specific number of alarms 2 and alarm lights 6 can be set according to the actual situation. In this embodiment, there are two alarms 2, which are symmetrically arranged on both sides of the upper part of the housing 11. The alarm lights 6 are arranged between the alarms 2. The arrangement of the alarms 2 on both sides of the upper part of the housing 11 can enhance the alarm sound during the installation and use of the pressure gauge. At the same time, the alarm lights 6 located between the alarms 2 are specifically arranged at the upper end of the housing 11. By flashing or keeping the alarm lights 6 on, combined with the sound alarm of the alarm 2, a dual alarm of sound and light is achieved.

[0051] Furthermore, the alarm 2 is a buzzer alarm. During installation and use, the alarm 2 is installed inside the housing 11 and its speaker extends to the outside of the housing 11 to ensure the effectiveness of the sound alarm.

[0052] The housing 11 has an installation groove 7 at its rear end. The installation groove 7 contains a battery 3 and a controller 8. In this embodiment, the controller 8 is a micro controller of model ESP8266, which can control the alarm 2 and the alarm light 6, and realize the coordinated sound and light alarm of the alarm 2 and the alarm light 6 or their independent alarm. At the same time, it can also realize the flashing or constant lighting control of the alarm light 6 when the alarm is activated.

[0053] Furthermore, the controller 8 integrates Wi-Fi functionality, enabling interconnection with handheld terminals or monitoring rooms, thus ensuring real-time control of the pressure gauge's status.

[0054] In addition, in specific implementation, a power detection chip can be set on the controller 8 and the battery 3. Specifically, a coulomb counter chip of model LTC2944 can be selected. The power detection chip detects the power of the battery 3 and transmits the detection signal to the controller 8 so that the controller 8 can select the alarm mode according to the remaining power of the battery 3 to ensure the alarm time.

[0055] Inside the housing 11, between the mounting groove 7 and the pressure gauge movement, there is a partition 9 that is threadedly connected to the housing 11. Specifically, a connecting ring is fixedly provided on the inner wall of the housing 11, and the partition 9 has a cover structure and is threadedly connected to the connecting ring, thereby realizing the fixed connection between the partition 9 and the housing 11.

[0056] The partition 9 is located between the mounting groove 7 and the pressure gauge movement, separating the pressure gauge movement from the battery 3. This prevents damage to the battery 3 or controller 8 caused by collisions between the pressure gauge movement and other components inside the pressure gauge and the battery 3 and controller 8 during disassembly and maintenance, thus ensuring the safety of each structure. At the same time, the partition 9 is detachably connected to the housing 11, which facilitates the maintenance and replacement of the battery 3 and controller 8.

[0057] It also includes a charging port 10, which is located at the rear end of the housing 11 and electrically connected to the battery 3. In this embodiment, the battery 3 is a rechargeable battery, and the charging port 10 can be used to charge the battery 3.

[0058] Combined with appendix Figure 8 As shown, the contact device 5, alarm 2, and alarm light 6 are all electrically connected to the controller 8. In a specific implementation, part A is a charging circuit connected to the battery 3. The alarm 8 and alarm light 6 are connected in parallel and electrically connected to the controller 8 and the pressure gauge mechanism. The battery 3 is electrically connected to the controller 8 and the contact device 5. In implementation, the circuit on / off is controlled by the contact between the pointer 13 and the contact device 5.

[0059] In the specific implementation of this utility model, before use, the alarm pressure value of the pressure gauge is set according to the actual use requirements. Then, the contact device 5 is moved to the corresponding pressure value on the dial 12. At this time, the pointer 13 is separated from the contact device 5. At this time, the alarm 2 and the alarm light 6 are in a non-working state.

[0060] When the pressure inside the fire extinguisher is less than or equal to the set pressure value, the pointer 13 moves to the contact device 5 and contacts the contact 52. At this time, the pointer 13 and the contact 52 are in a conductive state, the battery 3 supplies power to the circuit, and the controller 8 can control the alarm 2 and the alarm light 6 to trigger an alarm.

[0061] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A needle-contact alarm pressure gauge, characterized in that: Includes pressure gauge body (1), alarm (2) and battery (3); The pressure gauge body (1) includes a housing (11), a dial (12) installed inside the housing (11), a pressure gauge movement, and a pointer (13) connected to the pressure gauge movement. The dial (12) is provided with an arc-shaped sliding groove (4), and a contact device (5) is slidably provided on the arc-shaped sliding groove (4). The pointer (13) is a conductor and its tip can cooperate with the contact device (5) to conduct electricity. The contact device (5) can be adjusted to different positions on the dial (12) through the arc-shaped sliding groove (4) to achieve cooperation between the contact device (5) and different pressure values ​​on the dial (12). The housing (11) is provided with at least one alarm (2) and an alarm light (6). The rear end of the housing (11) is provided with a mounting groove (7). The mounting groove (7) is provided with a battery (3) and a controller (8). The contact device (5), the alarm (2) and the alarm light (6) are all electrically connected to the controller (8). The contact device (5) includes a sliding seat (51), a contact (52) and a terminal block (53). One end of the sliding seat (51) passes through the arc-shaped sliding groove (4) and is threadedly connected to the terminal block (53). The contact (52) is fixedly mounted on the sliding seat (51). The contact (52) is provided with a slot (54) that cooperates with the pointer (13). The slot (54) and the pointer (13) are connected by contact.

2. The needle-type alarm pressure gauge according to claim 1, characterized in that: The arc-shaped sliding groove (4) is arc-shaped and is set along the extension direction of the dial (12) scale.

3. A needle-type alarm pressure gauge according to claim 2, characterized in that: The number of alarms (2) is two and they are symmetrically arranged on both sides of the upper part of the housing (11). The alarm light (6) is arranged between the alarms (2).

4. A needle-type alarm pressure gauge according to claim 3, characterized in that: The alarm (2) is installed inside the housing (11) and its speaker extends to the outside of the housing (11).

5. A needle-type alarm pressure gauge according to claim 4, characterized in that: The housing (11) is provided with a partition (9) that is threadedly connected to the housing (11) between the mounting groove (7) and the pressure gauge movement.

6. A needle-type alarm pressure gauge according to any one of claims 1-5, characterized in that: It also includes a charging port (10), which is located at the rear end of the housing (11) and electrically connected to the battery (3).

7. A needle-type alarm pressure gauge according to claim 6, characterized in that: The alarm (2) is a buzzer alarm.

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