Pressure relief alarm

Abstract

The utility model provides a pressure relief alarm, which comprises a pressure relief part and an alarm part, the pressure relief part is provided with an outer wall, a spring is arranged in the outer wall, the end part of the spring is provided with a spring baffle plate, the alarm part is provided with an alarm whistle, and the alarm whistle is arranged on the spring baffle plate. According to the utility model, a simple mechanical structure is adopted, the problems of possible faults and instability of electronic products are avoided, and the overall stability and reliability are improved. Due to the fact that no complex electronic element exists, the maintenance and repair cost is relatively low, and troubleshooting and repairing are easy to carry out. The device is simple in structure and convenient to install, and does not need to be installed and maintained by professional technicians. And the pressure can be conveniently adjusted through the adjusting knob to adapt to different working environments and requirements. And when the pressure exceeds a set value, the alarm whistle gives an alarm to remind an operator to process in time, so that the safety of a working place is improved.

Description

Technical Field

[0001] The utility model relates to the field of negative pressure and high pressure relief alarms, and in particular to a pressure relief alarm. Background Art

[0002] In industries such as vacuum cleaners and air compressors, negative and high-pressure relief alarms are required to effectively protect equipment and alert operators. Patent application number 200920286274.6 discloses a high-pressure oil leak alarm for internal combustion engines. The alarm consists of an alarm device, an oil reservoir, a sensor, a float, a magnet, a relief valve, and a Hall effect element. The sensor replaces the original reed switch with a Hall effect element, and the main structure consists of an injection-molded oil reservoir and sensing column, replacing the original welded metal assembly. This utility model features high sensitivity, excellent stability and reliability, and excellent safety and shock resistance.

[0003] However, existing pressure relief alarms have some shortcomings that need improvement. Most existing pressure relief valves are purely mechanical and only provide a pressure relief function, failing to provide an alarm to the operator. This means that operators may not be able to detect pressure relief in time and therefore be unable to take appropriate measures, potentially posing a risk of equipment damage.

[0004] Existing methods for implementing pressure relief alarms, using a combination of pressure relief valves and electronics—including a pressure relief valve, pressure gauge, intermediate relay, and alarm—can achieve their intended purpose, but they present numerous challenges. First, this combination design is costly, increasing a company's equipment investment. Second, because multiple components work together, the failure rate is high, making it easy for a single component failure to cause the entire system to fail. Furthermore, this high failure rate also leads to high maintenance costs, requiring regular inspection and repair of each component, consuming significant manpower and material resources. Therefore, we have addressed this issue by proposing a pressure relief alarm. Utility Model Content

[0005] The purpose of the present invention is to address the problems raised by the existing background technology. In order to achieve the above-mentioned purpose of the utility model, the present invention provides the following technical solutions: a pressure relief alarm, comprising a pressure relief portion and an alarm portion, the pressure relief portion being provided with an outer wall, a spring being provided within the outer wall, a spring baffle being provided at the end of the spring, the alarm portion being provided with an alarm whistle, the alarm whistle being provided on the spring baffle, a pressure adjustment rod being provided at the center line of the outer wall, the adjustment rod thread provided on the pressure adjustment rod being engaged with the pressure adjustment nut thread.

[0006] As a preferred technical solution of the present invention, a whistle mounting socket is provided on the spring baffle, and the whistle is inserted into the whistle mounting socket.

[0007] As a preferred technical solution of the present invention, a sealing ring is provided on the pressure regulating rod.

[0008] As a preferred technical solution of the present invention, an adjusting knob is provided at the end of the pressure adjusting rod, and a knob arc groove is provided on the adjusting knob.

[0009] As a preferred technical solution of the present invention, a hexagonal nut fixing buckle is provided on the outer surface of the outer wall.

[0010] As a preferred technical solution of the present utility model, there are 1 to 6 alarm whistles.

[0011] As a preferred technical solution of the present invention, a cross whistle mouth is provided at the front end of the alarm whistle, and a conical fixing head is provided at a distance of 1 cm to 3 cm from the port of the alarm whistle.

[0012] As a preferred technical solution of the present invention, six whistle mounting sockets are provided in a circular array on the spring baffle.

[0013] As a preferred technical solution of the present invention, the conical fixing head is fitted onto the inner side of the whistle mounting socket.

[0014] As a preferred technical solution of the present invention, the spring baffle is circular.

[0015] Compared with the existing technology, the present invention has the following advantages: In the present invention, the present invention adopts a simple mechanical structure, which avoids the possible failure and instability problems of electronic products and improves the overall stability and reliability. Since there are no complex electronic components, the maintenance and repair costs are relatively low, and troubleshooting and repair are easy.

[0016] This new device has a simple structure and is easy to install, requiring no specialized technicians for installation and maintenance. The pressure can be easily adjusted using the adjustment knob to suit different working environments and needs. When the pressure exceeds the set value, an alarm will sound, alerting the operator to take timely action, thus improving workplace safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the disassembly structure provided by the utility model;

[0018] Figure 2 A schematic diagram of the structure provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the pressure regulating rod structure provided by the utility model;

[0020] Figure 4This is a schematic diagram of the whistle installation socket structure provided by the utility model;

[0021] Figure 5 A schematic cross-sectional view of the structure provided by the utility model;

[0022] Figure 6 This is a structural schematic diagram of the conical fixing head provided by the utility model.

[0023] Indicated in the figure:

[0024] 1. Pressure adjustment nut; 2. Alarm whistle; 201. Cross whistle mouth; 202. Conical fixing head; 3. Spring; 301. Spring baffle; 3011. Alarm whistle mounting socket; 4. Outer wall; 5. Pressure adjustment rod; 501. Adjustment rod thread; 6. Sealing ring; 7. Adjustment knob; 8. Knob arc groove; 9. Hexagonal nut fixing buckle. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] Example 1: Please refer to Figures 1-6 A pressure relief alarm includes a pressure relief portion and an alarm portion. The pressure relief portion includes an outer wall 4, within which a spring 3 is disposed. A spring baffle 301 is disposed at the end of the spring 3. The alarm portion includes an alarm whistle 2, which is mounted on the spring baffle. In this embodiment, the spring baffle 301 is provided with a whistle mounting socket 3011, into which the alarm whistle 2 is inserted. A pressure adjustment rod 5 is provided at the centerline of the outer wall 4. An adjustment rod thread 501 on the pressure adjustment rod 5 is threadedly engaged with a pressure adjustment nut 1. A sealing ring 6 is mounted on the pressure adjustment rod 5.

[0028] The end of the pressure adjustment rod 5 is provided with an adjustment knob 7, which is provided with an arcuate knob slot 8. Five arcuate knob slots 8 are provided, allowing access for insertion of a rod insertion tool, facilitating rotation of the adjustment knob 7 and preventing the adjustment knob 7 from being overtightened and unable to be loosened or removed. A hexagonal nut fixing buckle 9 is provided on the outer surface of the outer wall 4.

[0029] There are 1 to 6 alarm whistles 2, and different numbers of alarm whistles 2 are selected according to different alarm sounds. A cross whistle port 201 is provided at the front end of the alarm whistle 2, and a conical fixing head 202 is provided at a distance of 1 cm to 3 cm from the port of the alarm whistle 2.

[0030] The spring baffle 301 is circular in shape and has six whistle mounting holes 3011 arranged in a circular array thereon. The conical fixing head 202 fits on the inner side of the whistle mounting holes 3011.

[0031] Outer wall 4 serves as the outer shell of the pressure relief alarm, providing structural support and protecting internal components. Spring 3, mounted within outer wall 4, provides elastic force for pressure regulation. When the pressure within the system exceeds a preset value, spring 3 compresses, triggering the alarm mechanism. Pressure adjustment rod 5, located at the centerline of outer wall 4, adjusts the preload of spring 3, thereby setting the trigger pressure for the pressure relief alarm. Adjustment rod thread 501 and pressure adjustment nut 1: These two components work together to adjust the position of pressure adjustment rod 5, thereby adjusting the pressure of spring 3, by rotating the adjustment nut.

[0032] Adjustment knob 7: Set at the end of the pressure adjustment rod 5, with a knob arc groove 8, which is convenient for rotating and adjusting using tools to avoid the problem of being too tight and unable to loosen. Hexagonal nut fixing buckle 9: Set on the outer surface of the outer wall 4, used to fix the pressure relief alarm in the system. Whistle mounting socket 3011: A circular array is set on the spring baffle 301, with a total of 6, for installing the alarm whistle 2. The conical fixing head 202 fits on the inner side of the whistle mounting socket 3011 and is used to fix the alarm whistle 2 to ensure that it can sound stably when triggered.

[0033] The process of using the present invention is as follows: first, the pressure relief alarm is installed in a system that needs pressure relief and alarm, such as a gas or liquid pressure system. The outer wall 4 is fixed to a suitable position of the system by a hexagonal nut fixing buckle 9.

[0034] According to the system's operating requirements and safety standards, the position of the pressure adjustment rod 5 is adjusted by rotating the adjustment knob 7 through the knob's arcuate slot 8. Because the pressure adjustment rod 5 is threadedly engaged with the pressure adjustment nut 1, turning the knob changes the degree of compression of the spring 3, thereby setting the desired pressure threshold.

[0035] When the system operates normally, the internal pressure is lower than the set threshold, the spring 3 remains in place, the spring baffle 301 and the whistle installation socket 3011 remain in a stable state, and the whistle 2 will not sound an alarm.

[0036] When the internal pressure of the system rises to exceed the set threshold, the internal pressure pushes the spring baffle 301 to compress the spring 3 and move inward. At this time, due to the coordinated action of the pressure regulating rod 5, the sealing ring 6 and the spring 3, the pressure relief part starts to work.

[0037] As the pressure increases further, the spring 3 is continuously compressed, and the sealing ring 6 is pressed out of a gap. At this time, air flow is generated in the alarm whistle 2, thereby emitting a sharp alarm sound.

[0038] The alarm sound emitted by the alarm whistle 2 can immediately remind surrounding operators that the internal pressure of the system is too high and that emergency measures need to be taken to reduce the pressure or perform system inspections.

[0039] Once the pressure inside the system drops to a safe level, the spring 3 will push the spring baffle 301 to reset, the alarm whistle 2 will stop sounding, and the system will return to normal working state.

[0040] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A pressure relief alarm, characterized in that: The invention comprises a pressure relief part and an alarm part, wherein the pressure relief part is provided with an outer wall (4), a spring (3) is provided inside the outer wall (4), a spring baffle (301) is provided at the end of the spring (3), the alarm part is provided with an alarm whistle (2), the alarm whistle (2) is provided on the spring baffle (301), a pressure regulating rod (5) is provided at the center line of the outer wall (4), and an adjusting rod thread (501) provided on the pressure regulating rod (5) is threadedly matched with a pressure regulating nut (1).

2. A pressure relief alarm according to claim 1, characterized in that: The spring baffle (301) is provided with a whistle installation socket (3011), and the whistle (2) is inserted into the whistle installation socket (3011).

3. The pressure relief alarm according to claim 1, characterized in that: The pressure regulating rod (5) is sleeved with a sealing ring (6).

4. The pressure relief alarm according to claim 1, characterized in that: An adjusting knob (7) is provided at the end of the pressure adjusting rod (5), and a knob arc groove (8) is provided on the adjusting knob (7).

5. The pressure relief alarm according to claim 1, characterized in that: The outer surface of the outer wall (4) is provided with a hexagonal nut fixing buckle (9).

6. The pressure relief alarm according to claim 1, characterized in that: The number of the alarm whistles (2) is 1 to 6.

7. The pressure relief alarm according to claim 6, characterized in that: The front end of the alarm whistle (2) is provided with a cross whistle opening (201), and the alarm whistle (2) is provided with a conical fixing head (202) at a distance of 1 cm to 3 cm from the port.

8. The pressure relief alarm according to claim 7, characterized in that: Six whistle installation sockets (3011) are arranged in a circular array on the spring baffle (301).

9. The pressure relief alarm according to claim 8, characterized in that: The conical fixing head (202) fits on the inner side of the whistle mounting socket (3011).

10. The pressure relief alarm according to any one of claims 1 to 9, characterized in that: The spring baffle (301) is circular.

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