Fire extinguisher pressure indicator

Abstract

The utility model belongs to the technical field of fire extinguisher accessories, and particularly relates to a fire extinguisher pressure indicator which comprises a gauge stand, a pressure sensor, a pressure sensor and a pressure sensor. The top of the connecting rod penetrates through the gauge stand, and an air passage is arranged in the connecting rod in a penetrating manner; and the air pressure sensing piece is arranged above the gauge stand, a pointer is integrally arranged on the outer wall of the air pressure sensing piece, and the air pressure sensing piece is connected with the air channel. Through the air pressure sensing piece and the pointer which is integrally arranged, falling of the pointer caused by glue aging can be avoided, and the service life of the pressure indicator can be prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire extinguisher accessories, and in particular relates to a fire extinguisher pressure indicator. Background Art

[0002] A fire extinguisher is a portable fire-fighting tool containing chemicals used to extinguish fires. Fire extinguishers are common fire prevention equipment, stored in public places or areas where fires may occur. Different types of fire extinguishers contain different components and are designed for different types of fires.

[0003] Fire extinguishers are typically equipped with a pressure gauge to display the gas pressure inside. When the gas pressure is too low, the chemical substances inside the extinguisher cannot be released. When the gas pressure is within a certain range, the chemical substances can be released, and the extinguisher can be used normally. However, when the gas pressure is too high, although the chemical substances can be released, there is a risk of explosion. Therefore, the pressure gauge on a fire extinguisher is a crucial component.

[0004] Most existing pressure indicators use glue to install the pointer into the pressure indicator. During the use of the pressure indicator, if the glue ages, the pointer is prone to falling off, which affects the service life of the pressure indicator. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a fire extinguisher pressure indicator, thereby resolving the issues raised in the background art.

[0006] In view of this, the present invention provides a fire extinguisher pressure indicator, comprising:

[0007] The watch base has a watch dial inside and a protective cover on its top surface.

[0008] A connecting rod, the top of which passes through the gauge base, and an air passage is provided through the connecting rod;

[0009] A pressure sensor is provided, which is located above the gauge base and has an integral pointer on its outer wall. The pressure sensor is connected to the air passage.

[0010] In this technical solution, a cavity is formed by the cooperation between the protective cover and the gauge base. The pressure indicator is installed on the fire extinguisher via a connecting rod. The air pressure inside the fire extinguisher, through the cooperation between the air passage and the air pressure sensor, drives the pointer, which is integrated with the air pressure sensor, to rotate clockwise. This adjustment is based on the internal air pressure of the fire extinguisher. The integrated air pressure sensor and pointer prevent the pointer from detaching due to glue aging, thus extending the service life of the pressure indicator.

[0011] In the above technical solution, the pressure sensing element is a Bourdon tube, and the pointer is made by twisting the front end of the Bourdon tube by 90°.

[0012] In the above technical solution, the bottom outer wall of the connecting rod is provided with a thread, and a screwing part is provided above the thread, and a boss is provided above the screwing part, and the boss is connected to the base.

[0013] In this technical solution, the screw-on part can be used with a wrench to facilitate the disassembly or installation of the pressure indicator.

[0014] In the above technical solution, a fixing ring is further provided at the bottom of the protective cover, and the side of the dial base is turned inward to cooperate with the fixing ring to fix the protective cover, and the boss is turned outward to connect the connecting rod to the dial base.

[0015] In the above technical solution, a placement groove is further provided between the thread and the screwing part, and the placement groove is used to install the sealing ring.

[0016] In this technical solution, the sealing performance between the pressure indicator and the fire extinguisher can be improved by the cooperation between the placement groove and the sealing ring.

[0017] In the above technical solution, furthermore, the outer wall of the boss is provided with limiting members evenly distributed around its circumference, and a connecting groove is provided at the corresponding position of the table base.

[0018] In this technical solution, the cooperation between the limiting component and the connecting groove can prevent the gauge base and the connecting rod from rotating during the installation of the pressure indicator, thus avoiding affecting the accuracy of the pressure indicator display.

[0019] In the above technical solution, a warning structure is further provided on the side of the gauge base, and the warning structure is connected to the air pressure sensor.

[0020] In the above technical solution, the warning structure further includes:

[0021] Mounting bracket, the mounting bracket is disposed on the bottom surface of the meter base, and the mounting bracket and the meter base are connected by screws;

[0022] The warning device is mounted on the top surface of the mounting base and has a built-in battery.

[0023] A connecting post passes through the base and the dial, is located on the refill scale on the dial, and the upper end of the connecting post is made of conductive metal.

[0024] The positive and negative terminals of the alarm are connected to the connecting post and the air pressure sensor, respectively.

[0025] In this technical solution, when the gas pressure in the fire extinguisher is insufficient, when the pointer connected to the gas pressure sensor rotates to the refill mark position, it can connect to the top of the connecting column, so that the alarm can be connected to the power supply, thereby driving the alarm to hum or emit light, so as to remind personnel to replace or maintain the fire extinguisher in time.

[0026] The beneficial effects of this utility model are:

[0027] 1. The fit between the cover and the base creates a cavity. The pressure indicator is mounted to the fire extinguisher via a connecting rod. The internal air pressure of the fire extinguisher, through the air passage and the pressure sensor, causes the pointer, which is integrated with the pressure sensor, to rotate clockwise. This adjustment is based on the internal air pressure of the fire extinguisher. The integrated pressure sensor and pointer prevent the pointer from detaching due to glue aging, thus extending the lifespan of the pressure indicator.

[0028] 2. When the gas pressure in the fire extinguisher is insufficient, when the pointer connected to the gas pressure sensor rotates to the refill mark, it can connect to the top of the connecting column, so that the alarm can be connected to the power supply, thereby driving the alarm to hum or light up, so as to remind personnel to replace or maintain the fire extinguisher in time. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0030] Figure 2 This is a three-dimensional sectional view of the present invention;

[0031] Figure 3 This is an exploded view of this utility model;

[0032] The markings in the diagram are as follows:

[0033] 1. Base; 2. Protective cover; 3. Dial; 4. Connecting rod; 5. Air passage; 6. Pressure sensor; 7. Pointer; 8. Thread; 9. Tightening part; 10. Boss; 11. Restrictor; 12. Connecting groove; 13. Placement groove; 14. Sealing ring; 15. Warning structure; 1501. Mounting base; 1502. Screw; 1503. Alarm device; 1504. Connecting post; 16. Retaining ring. DETAILED DESCRIPTION

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0038] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0039] Example 1:

[0040] Depend on Figures 1-3 As shown, this embodiment provides a fire extinguisher pressure indicator, including: a base 1, a dial 3 is provided inside the base 1, and a protective cover 2 is provided on the top surface of the base 1; a connecting rod 4, the top of the connecting rod 4 passes through the base 1, and an air passage 5 is provided through the connecting rod 4; a pressure sensor 6, the pressure sensor 6 is disposed above the base 1, and a pointer 7 is integrally provided on the outer wall of the pressure sensor 6, and the pressure sensor 6 is connected to the air passage 5.

[0041] The cooperation between the protective cover 2 and the base 1 forms a cavity. The pressure indicator is installed on the fire extinguisher via the connecting rod 4. The air pressure inside the fire extinguisher, through the cooperation between the air passage 5 and the air pressure sensor 6, drives the pointer 7, which is integrated with the air pressure sensor 6, to rotate clockwise. This mechanism, based on the internal air pressure of the fire extinguisher, prevents the pointer 7 from detaching due to glue aging, thus extending the service life of the pressure indicator.

[0042] Furthermore, the pressure sensor 6 is a Bourdon tube, and the pointer 7 is made by twisting the front end of the Bourdon tube by 90°.

[0043] Furthermore, the bottom outer wall of the connecting rod 4 is provided with a thread 8, and a screwing part 9 is provided above the thread 8, and a boss 10 is provided above the screwing part 9, the boss 10 being connected to the base 1.

[0044] The screw-on part 9 allows for easy disassembly or installation of the pressure indicator when used with a wrench.

[0045] Furthermore, a fixing ring 16 is fixedly provided at the bottom of the protective cover 2, and the side of the dial base 1 is turned inward to cooperate with the fixing ring 16 to fix the protective cover 2, and the boss 10 is turned outward to connect the connecting rod 4 to the dial base 1.

[0046] Furthermore, a placement groove 13 is provided between the thread 8 and the screwing part 9, and the placement groove 13 is used to install the sealing ring 14.

[0047] The fit between the placement groove 13 and the sealing ring 14 can improve the sealing between the pressure indicator and the fire extinguisher.

[0048] Furthermore, the outer wall of the boss 10 is provided with limiting members 11 evenly distributed around its perimeter, and a connecting groove 12 is provided at the corresponding position of the base 1.

[0049] By cooperating with the limiting component 11 and the connecting groove 12, the rotation between the gauge base 1 and the connecting rod 4 during the installation of the pressure indicator can be avoided, thus preventing the pressure indicator from affecting the accuracy of the display.

[0050] Furthermore, a placement groove 13 is provided between the thread 8 and the screwing part 9, and the placement groove 13 is used to install the sealing ring 14.

[0051] The fit between the placement groove 13 and the sealing ring 14 can improve the sealing between the pressure indicator and the fire extinguisher.

[0052] Example 2:

[0053] Depend on Figures 1-3 As shown, this embodiment provides a fire extinguisher pressure indicator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] Furthermore, a warning structure 15 is provided on the side of the watch base 1. The warning structure 15 is connected to the barometric pressure sensor 6. The warning structure 15 includes: a mounting base 1501, which is disposed on the bottom surface of the watch base 1 and connected to the watch base 1 by screws 1502; a warning device 1503, which is disposed on the top surface of the mounting base 1501 and has a built-in battery; and a connecting post 1504, which passes through the watch base 1 and the dial 3 and is located on the refill scale on the dial 3. The upper end of the connecting post 1504 is made of conductive metal. The positive and negative terminals of the warning device 1503 are connected to the connecting post 1504 and the barometric pressure sensor 6, respectively.

[0055] When the air pressure in the fire extinguisher is insufficient, the pointer 7 connected to the air pressure sensor rotates to the refill mark position, which can connect to the top of the connecting column 1504, so that the alarm 1503 is connected to the power supply, which can drive the alarm 1503 to hum or emit light, so as to remind personnel to replace or maintain the fire extinguisher in time.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fire extinguisher pressure indicator, characterized in that... ,include: The watch base (1) is provided with a watch face (3) and a protective cover (2) is provided on the top surface of the watch base (1); A connecting rod (4) is provided, the top of which passes through the gauge base (1), and an air passage (5) is provided through the connecting rod (4); A pressure sensor (6) is provided above the gauge base (1), and a pointer (7) is integrally provided on the outer wall of the pressure sensor (6). The pressure sensor (6) is connected to the air passage (5).

2. A fire extinguisher pressure indicator according to claim 1, characterized in that, The pressure sensor (6) is a Bourdon tube, and the pointer (7) is made by twisting the front end of the Bourdon tube by 90°.

3. A fire extinguisher pressure indicator according to claim 1, characterized in that, The bottom outer wall of the connecting rod (4) is provided with a thread (8), and a screwing part (9) is provided above the thread (8), and a boss (10) is provided above the screwing part (9), and the boss (10) is connected to the base (1).

4. A fire extinguisher pressure indicator according to claim 3, characterized in that, The bottom of the protective cover (2) is fixedly provided with a fixing ring (16). The side of the table base (1) is turned inward to cooperate with the fixing ring (16) to fix the protective cover (2). The boss (10) is turned outward to connect the connecting rod (4) to the table base (1).

5. A fire extinguisher pressure indicator according to claim 3, characterized in that, A placement groove (13) is provided between the thread (8) and the screwing part (9), and the placement groove (13) is used to install the sealing ring (14).

6. A fire extinguisher pressure indicator according to claim 4, characterized in that, The outer wall of the boss (10) is provided with limiting members (11) evenly distributed around it, and a connecting groove (12) is provided at the corresponding position of the base (1).

7. A fire extinguisher pressure indicator according to claim 1, characterized in that, The gauge base (1) is provided with a warning structure (15) on its side, and the warning structure (15) is connected to the air pressure sensor (6).

8. A fire extinguisher pressure indicator according to claim 7, characterized in that, The warning structure (15) includes: Mounting base (1501), the mounting base (1501) is disposed on the bottom surface of the dial base (1), and the mounting base (1501) and the dial base (1) are connected by screws (1502); The warning device (1503) is disposed on the top surface of the mounting base (1501) and has a built-in battery. The connecting post (1504) passes through the base (1) and the dial (3), and is located on the refill scale on the dial (3). The upper end of the connecting post (1504) is made of conductive metal. The positive and negative terminals of the alarm device (1503) are connected to the connecting post (1504) and the air pressure sensor (6), respectively.

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