Needle touch type alarm pressure gauge

Abstract

The invention 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] The invention relates to the technical field of pressure gauges, in particular to a needle-touch alarm pressure gauge. Background Art

[0002] Fire protection products are essential for safety protection in the development of modern society, and the use of pressure gauges is also indispensable. The pressure gauge uses the elastic deformation of the sensitive elements (Bourdon tube, diaphragm box, bellows, etc.) inside the gauge, and then the conversion mechanism of the movement inside the gauge transmits the pressure deformation to the pointer, causing the pointer to rotate to display the pressure; for example, fire extinguishers often have safety hazards due to the lack of adverse prompts, resulting in the (under-pressure) product not being able to be used normally when urgently needed. For pressure storage fire extinguishers, users need to check them regularly. In order to conveniently read the pressure in the bottle, it is common to connect a pressure gauge to the fire extinguisher bottle. However, traditional pressure gauges used for fire extinguishers can only indicate the pressure of the fire extinguisher, and cannot alarm for under-pressure of the fire extinguisher.

[0003] The invention application with application number 201410148913.8 discloses a fire extinguisher red light alarm, comprising a fire extinguisher cylinder (1), a fixed leather ring (2), a nozzle (4), a handle (5), a safety pull ring (6), and a pressure gauge (11) connected in sequence, characterized in that a micro alarm (9) is fixed outside the pressure gauge (11), a dial (7) is installed inside the pressure gauge (11), a pointer (3) is installed on the dial (7), a reed switch (8) is installed below the pressure warning line on the dial (7), a red light emitting diode (10) is installed at the lower left of the dial (7), and a button battery (12) is installed at the lower right of the dial (7). The invention is to facilitate and intuitively detect the leakage pressure of the fire extinguisher. When the pressure of the fire extinguisher is lower than the warning line, the pointer of the fire extinguisher pressure gauge begins to slide down to the red zone warning area. At this time, because the pointer is magnetic, the reed switch is connected, and the red light emitting diode and the micro alarm emit light and sound at the same time, attracting people's attention and reminding people to deal with it in time. Although the present invention can make the fire extinguisher under pressure automatically give sound and light alarm, the use of reed switch as the alarm switch of the pressure gauge has the following problems: 1: the installation of reed switch is relatively troublesome; 2: the use of reed switch must use magnets, and the magnetic attraction takes effect only in a certain space, which has a certain influence on the detection sensitivity of the pressure gauge and the accuracy is not high.

[0004] Therefore, a needle-touch alarm pressure gauge is proposed to solve the current shortcomings. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a needle-touch alarm pressure gauge.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is a pin-touch alarm pressure gauge: comprising a pressure gauge body, an alarm and a battery;

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

[0008] The dial is provided with an arc-shaped sliding groove, a contact device is slidably provided on the arc-shaped sliding groove, and the pointer is a conductor and its tip can cooperate with the contact device for conduction;

[0009] At least one alarm and an alarm light are arranged on the shell, a mounting slot is arranged at the rear end of the shell, a battery and a controller are arranged in the mounting slot, and the contact device, the alarm and the alarm light are all electrically connected to the controller.

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

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

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

[0013] As an improvement, the alarm is installed in the shell and its speaker end extends to the outside of the shell.

[0014] As an improvement, a partition connected to the shell with threads is provided in the shell between the mounting slot and the pressure gauge movement.

[0015] As an improvement, it also includes a charging port, which is arranged at the rear end of the shell and is electrically connected to the battery.

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

[0017] The advantages of the present invention compared with the prior art are:

[0018] 1. Through the cooperation of the contact device movably arranged on the dial and the pointer, the alarm circuit can be turned on, and then the alarm device and / or the alarm light can be controlled by the controller to give an alarm;

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

[0020] 3. By integrating the alarm, alarm light, battery and controller in the pressure gauge, the automatic alarm function is realized while reducing its occupied volume, making it convenient for practical use;

[0021] 4. The 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, and then an alarm is given. It can provide timely information on the under-pressure of the fire extinguisher, prevent the fire extinguisher from being put into service with under-pressure and disease, and eliminate safety hazards for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the front structure of a needle-touch alarm pressure gauge.

[0023] Figure 2 The utility model is a schematic diagram of the rear structure of a needle-touch alarm pressure gauge of the present invention.

[0024] Figure 3 The utility model is a front view of a needle-touch alarm pressure gauge of the present invention.

[0025] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0026] Figure 5 yes Figure 3 Cross-sectional view at the middle BB.

[0027] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle.

[0028] Figure 7 The present invention discloses a schematic structural diagram of a contact device in a needle-touch alarm pressure gauge.

[0029] Figure 8 The invention discloses a circuit diagram of a needle-touch alarm pressure gauge.

[0030] As shown in the figure:

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

[0032] 2. Alarm, 3. Battery, 4. Arc-shaped sliding slot;

[0033] 5. contact device, 51. sliding seat, 52. contact, 53. wiring terminal, 54. card slot;

[0034] 6. Warning light, 7. Installation slot, 8. Controller, 9. Partition, 10. Charging port. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the invention clearer, the technical solution in the embodiments of the invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Generally, the components of the embodiments of the invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] In the description of the embodiments of the invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, it is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

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

[0039] In the description of the embodiments of the invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0040] In conjunction with the attached drawings, a needle-touch alarm pressure gauge can automatically alarm when an under-pressure state occurs during the use and storage of a fire extinguisher, prompting timely maintenance to ensure that any unqualified fire extinguisher products in the fire protection area can be repaired or updated in a timely manner.

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

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

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

[0044] The dial 12 is provided with an arc-shaped sliding groove 4, through which the contact device 5 can be adjusted to different positions on the dial 12, so as to achieve the coordination of the contact device 5 with different vertical pressure values ​​on the dial 12, so that the pressure gauge can alarm under different pressure values, thereby increasing the use range of the pressure gauge.

[0045] Specifically, the arc-shaped sliding groove 4 is arc-shaped and is arranged along the extension direction of the scale on the dial 12. The starting end of the arc-shaped sliding groove 4 is arranged corresponding to the 0 scale 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 provided on the arc-shaped sliding groove 4. The contact device 5 is made of metal material and includes a sliding seat 51, a contact 52 and a wiring terminal 53. One end of the sliding seat 51 passes through the arc-shaped sliding groove 4 and is threadedly connected to the wiring terminal 53. The threaded connection between the sliding seat 51 and the wiring terminal 53 can ensure that the position of the contact device 5 is adjusted along the arc-shaped sliding groove 4 on the dial 12, and the relative position between the contact device 5 and the dial 12 is fixed; the contact 52 is fixedly provided on the sliding seat 51, and a slot 54 is provided on the contact 52 to cooperate with the pointer 13. The contact 52 and the pointer 13 are connected by contact. In a specific implementation, the stability of the cooperation between the pointer 13 and the contact 52 can be ensured by the slot 54 provided on the contact 52. At the same time, the height of the slot 54 is greater than the thickness of the pointer 13, so that the movement of the pointer 13 in the slot 52 can be ensured.

[0047] The pointer 13 is a conductor and its tip can cooperate with the contact device 5 to conduct. 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 electrically connected.

[0048] In a specific implementation, the cooperation between the pointer 13 and the contact 52 realizes a switching function. Through the cooperation and separation between the pointer 13 and the contact 52, the conduction and disconnection of the circuit are realized, and then the shutdown control of the alarm 2 and the alarm light 6 is realized. When the pressure gauge is in normal use, the pointer 13 and the contact 52 are in a separated state.

[0049] Furthermore, in this embodiment, the dial 12 is made of insulating material to avoid direct electrical connection between the contact device 5 and the pressure gauge movement through the dial 12 .

[0050] At least one alarm 2 and an alarm light 6 are provided on the shell 11. The specific number of the alarm 2 and the alarm light 6 can be set according to actual conditions. In this embodiment, the number of the alarms 2 is two and they are symmetrically arranged on both sides of the upper part of the shell 11. The alarm light 6 is arranged between the alarms 2. The alarm 2 is located on both sides of the upper part of the shell 11. During the installation and use of the pressure gauge, the alarm sound can be increased. At the same time, the alarm light 6 located between the alarms 2 is specifically arranged at the upper end of the shell 11. By flashing or keeping the alarm light 6 on, combined with the sound alarm of the alarm 2, a dual alarm of sound and light is realized.

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

[0052] A mounting slot 7 is provided at the rear end of the shell 11, and a battery 3 and a controller 8 are provided in the mounting slot 7. In the present embodiment, the controller 8 adopts a microcontroller of model ESP8266, which can realize the control of the alarm 2 and the alarm light 6, realize the coordinated sound and light alarm of the alarm 2 and the alarm light 6 or their independent alarm, and at the same time, can also realize the flashing or constant light control of the alarm light 6 when the alarm is turned on.

[0053] Furthermore, the controller 8 is integrated with a Wi-Fi function, which can realize interconnection with a handheld terminal or a monitoring room, and can ensure control of the real-time status of the pressure gauge.

[0054] At the same time, in the specific implementation, a power detection chip connected to the controller 8 and the battery 3 can also be set. The specific optional model is the coulomb counter chip of LTC2944. 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 form according to the remaining power of the battery 3 to ensure the alarm time.

[0055] A partition plate 9 threadedly connected to the shell 11 is provided in the shell 11 between the mounting slot 7 and the pressure gauge movement. Specifically, a connecting ring is fixedly provided on the inner wall of the shell 11, and the partition plate 9 is a cover structure threadedly connected to the connecting ring, thereby realizing a fixed connection between the partition plate 9 and the shell 11.

[0056] The partition 9 is located between the mounting slot 7 and the pressure gauge movement, so as to separate the pressure gauge movement from the battery 3. This can prevent the battery 3 or the controller 8 from being damaged due to collision between the pressure gauge movement and other components in the pressure gauge and the battery 3 and the controller 8 when the pressure gauge is disassembled for maintenance, thereby ensuring the safety between the various structures. At the same time, the partition 9 and the shell 11 are detachably connected, which can facilitate the maintenance and replacement of the battery 3 and the controller 8.

[0057] The housing 11 further includes a charging port 10 , which is disposed at the rear end of the housing 11 and is electrically connected to the battery 3 . In the present embodiment, the battery 3 is a rechargeable battery, and the charging operation of the battery 3 can be realized through the charging port 10 .

[0058] Combined with Figure 8 As shown, the contact device 5, the alarm 2 and the 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 the alarm light 6 are in parallel and electrically connected to the controller 8 and the pressure gauge movement, and the battery 3 is electrically connected to the controller 8 and the contact device 5 respectively. In implementation, the contact and cooperation between the pointer 13 and the contact device 5 is used to control the on-off of the circuit.

[0059] When the present invention is implemented, before use, the alarm pressure value of the pressure gauge is set according to the actual use requirements, and then the contact device 5 is moved to the corresponding pressure value on the dial 12. At this time, the pointer 13 and the contact device 5 are in a separated state, and at this time, the alarm 2 and the alarm light 6 are in a non-working state;

[0060] When the pressure in 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 sound an alarm.

[0061] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A needle-touch alarm pressure gauge, characterized in that: It comprises a pressure gauge body (1), an alarm (2) and a battery (3); The pressure gauge body (1) comprises a housing (11), a dial (12) and a pressure gauge movement installed in the housing (11), and a pointer (13) connected to the pressure gauge movement; The dial (12) is provided with an arc-shaped sliding groove (4), a contact device (5) is slidably provided on the arc-shaped sliding groove (4), and the pointer (13) is a conductor and its tip can cooperate with the contact device (5) for conduction; At least one alarm (2) and an alarm light (6) are provided on the housing (11); a mounting slot (7) is provided at the rear end of the housing (11); a battery (3) and a controller (8) are provided in the mounting slot (7); and the contact device (5), the alarm (2) and the alarm light (6) are all electrically connected to the controller (8).

2. A needle-touch alarm pressure gauge according to claim 1, characterized in that: The contact device (5) comprises a sliding seat (51), a contact (52) and a wiring terminal (53); one end of the sliding seat (51) passes through an arc-shaped sliding groove (4) and is threadedly connected to the wiring terminal (53); the contact (52) is fixedly arranged on the sliding seat (51); and a slot (54) is provided on the contact (52) that cooperates with the pointer (13).

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

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

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

6. A needle-touch alarm pressure gauge according to claim 4, characterized in that: A partition plate (9) threadedly connected to the housing (11) is provided in the housing (11) between the mounting slot (7) and the pressure gauge movement.

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

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

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