Hydraulic connector with pressure relief function

Abstract

The utility model relates to the technical field of hydraulic joints, and discloses a hydraulic joint with a pressure relief function, which comprises a pipe joint and a detection groove, the detection groove is arranged at the top of the pipe joint, and a pressure relief component for releasing liquid pressure is arranged in the pipe joint. The top of the pipe joint is provided with an alarm assembly used for prompting a worker to release pressure, and through the arrangement of the pressure release assembly, when the internal pressure of the pipe joint is too large and liquid passes through the interior of the speed increasing block, according to the Venturi tube principle, the liquid extrudes the sealing block through the communication groove and the detection groove, so that the sealing effect is improved; finally, pressure and liquid in the pipe joint can flow out through a gap between the detection groove and the sealing block, the purpose of pressure relief is achieved, the pressure change in the pipe joint can be ingeniously converted into flowing change of the liquid through the principle of the speed increasing block and the Venturi tube, the pressure relief process is triggered, the structure is more compact, and the practicability is high. And application in a hydraulic system with limited space is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic connector technology, specifically a hydraulic connector with pressure relief function. Background Technology

[0002] Hydraulic fittings are connectors used in hydraulic systems to connect oil pipes, hydraulic components, and other parts. They ensure the smooth transmission of hydraulic oil between different parts of the system and maintain the system's sealing and stability. The materials of hydraulic fittings usually need to have good strength, corrosion resistance, and sealing performance, and are generally made of metal materials such as carbon steel, stainless steel, and copper alloys.

[0003] Traditional hydraulic couplings on the market rely solely on simple pressure valves, such as spring-loaded safety valves, for pressure relief. This method is not sensitive enough to pressure, often requiring significant pressure changes to activate the relief mechanism. It's difficult to precisely control the starting point and amount of pressure relief, making the hydraulic system prone to exceeding safe limits during pressure fluctuations. This can lead to serious consequences such as pipe rupture and damage to hydraulic components, affecting system safety and stability. Furthermore, their structural design lacks efficient and compact pressure detection and conversion mechanisms, often requiring large, complex pressure sensors and control units to monitor pressure changes. This not only increases system cost and size but also imposes numerous limitations in space-constrained applications. Moreover, traditional hydraulic couplings lack precise fluid flow path design during pressure relief, often resulting in disordered impacts on the relief components, leading to unstable and incomplete pressure relief and failing to effectively maintain system pressure within the ideal range. Additionally, the sealing structure of traditional couplings is relatively simple, lacking flexibility in switching between sealing and relief states. Repeated operations can degrade sealing performance, and the lack of a buffer mechanism to cope with sudden pressure changes can easily damage sealing components, shorten coupling lifespan, increase system maintenance costs and downtime, and reduce overall production efficiency.

[0004] In terms of pressure monitoring and warning, most traditional hydraulic joints lack effective pressure anomaly alarm mechanisms. They cannot promptly and intuitively issue alarm signals to operators when excessive pressure is induced during pressure relief operations. This makes it difficult for operators to quickly detect abnormal pressure conditions in the hydraulic system in complex and often noisy industrial environments. Consequently, they cannot take timely measures to troubleshoot or adjust system operating parameters, increasing the risk of serious system failures due to pressure issues, such as pipe ruptures, damage to hydraulic components, or even disruption of the entire production process, resulting in significant economic losses.

[0005] Therefore, a hydraulic joint with pressure relief function is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a hydraulic connector with a pressure relief function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic connector with a pressure relief function, including a pipe connector and a detection groove, wherein the detection groove is opened at the top of the pipe connector, the inside of the pipe connector is provided with a pressure relief component for releasing liquid pressure, and the top of the pipe connector is provided with an alarm component for prompting the operator to perform pressure relief.

[0008] Preferably, the pressure relief assembly includes a speed-increasing block, which is fixedly connected to the inside of the pipe joint, and a connecting groove is provided on the top of the speed-increasing block.

[0009] Preferably, the pressure relief assembly further includes a positioning plate, which is fixedly connected to the top of the pipe joint, and a return spring is fixedly connected to the bottom of the positioning plate. A sealing block is fixedly connected to the end of the return spring away from the positioning plate.

[0010] Preferably, the alarm component includes a first conductive block, which is fixedly connected to the top of the sealing block, a second conductive block is fixedly connected to the bottom of the positioning disk, and an alarm light is fixedly connected to the top of the positioning disk.

[0011] Preferably, the connecting groove is connected to the detection groove, and the sealing block is slidably connected inside the detection groove.

[0012] Preferably, the first conductive block has a power source inside, and the second conductive block is electrically connected to the alarm light.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The pressure relief component achieves the following: when the internal pressure of the pipe joint is too high, when the liquid passes through the speed-increasing block, according to the Venturi principle, the liquid squeezes the sealing block through the connecting groove and the detection groove, causing the sealing block to compress the return spring towards the positioning plate. After the sealing block moves to the top of the pipe joint, the pressure and liquid inside the pipe joint will flow out through the gap between the detection groove and the sealing block, thereby achieving the purpose of pressure relief.

[0015] The system automatically relieves pressure when the internal pressure of the pipe joint is too high, preventing damage to the hydraulic system due to excessive pressure. It also utilizes the Venturi principle to achieve the pressure relief process, allowing for more precise control of the pressure relief start point and amount compared to traditional simple pressure relief methods. This helps maintain the hydraulic system within a relatively stable pressure range, improving system efficiency and performance.

[0016] By utilizing the speed-increasing block and the Venturi tube principle, the pressure change inside the pipe joint can be cleverly converted into a change in fluid flow, thereby triggering the pressure relief process. Compared with traditional hydraulic joints, which require the installation of large and complex pressure sensors and control units to achieve similar functions, the structure is more compact and is more suitable for use in hydraulic systems with limited space.

[0017] 2. By setting up the alarm component, when the first conductive block and the second conductive block come into contact, the first conductive block will transmit its own electrical energy to the alarm light through the second conductive block, thereby causing the alarm light to light up simultaneously during the depressurization process of the aforementioned pipe joint. This serves as a reminder to the operator that the system has experienced an abnormal pressure situation. In complex hydraulic systems, this warning allows the operator to be aware of the abnormal pressure immediately and take appropriate measures, such as checking the system load changes and troubleshooting for faulty components, to avoid more serious system failures or safety accidents.

[0018] Compared to traditional hydraulic joints without alarm lights, this visual alarm method makes it easier to detect abnormal pressure. In noisy industrial environments or when equipment is in a remote monitoring position, operators cannot determine whether the pipe joint is depressurizing by sound or direct observation. The alarm light, as a visual signal, can overcome these limitations and ensure that abnormal pressure information is captured in a timely manner. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the pipe connector, detection groove, speed-increasing block, and connecting groove of this utility model;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the pressure relief component and the alarm component of this utility model.

[0023] Attached reference numerals: 11. Pipe fitting; 12. Testing groove;

[0024] The pressure relief assembly includes: 21, speed-increasing block; 22, connecting groove; 23, positioning plate; 24, return spring; 25, sealing block;

[0025] The alarm assembly includes: 31, a first conductive block; 32, a second conductive block; and 33, an alarm light. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 4 One embodiment of this utility model is a hydraulic connector with a pressure relief function, including a pipe connector 11 and a detection groove 12. The detection groove 12 is opened on the top of the pipe connector 11. The inside of the pipe connector 11 is provided with a pressure relief component for releasing liquid pressure. The top of the pipe connector 11 is provided with an alarm component for prompting the staff to perform pressure relief.

[0028] The pressure relief assembly includes a speed-increasing block 21, which is fixedly connected to the inside of the pipe joint 11. A connecting groove 22 is provided on the top of the speed-increasing block 21.

[0029] The pressure relief assembly also includes a positioning plate 23, which is fixedly connected to the top of the pipe joint 11. A return spring 24 is fixedly connected to the bottom of the positioning plate 23, and a sealing block 25 is fixedly connected to the end of the return spring 24 away from the positioning plate 23.

[0030] The alarm assembly includes a first conductive block 31, which is fixedly connected to the top of the sealing block 25; a second conductive block 32 is fixedly connected to the bottom of the positioning disk 23; and an alarm light 33 is fixedly connected to the top of the positioning disk 23.

[0031] The connecting groove 22 is connected to the detection groove 12. The sealing block 25 is slidably connected inside the detection groove 12, so that when the pressure inside the pipe joint 11 increases, it will resist the sealing block 25 and slide along the inside of the detection groove 12.

[0032] The first conductive block 31 has a power source inside, and the second conductive block 32 is electrically connected to the alarm light 33, so that the alarm light 33 lights up when the first conductive block 31 and the second conductive block 32 come into contact.

[0033] Working principle: In the initial state, the reset spring 24 is not compressed, and the first conductive block 31 and the second conductive block 32 are not in contact.

[0034] During operation, when the pressure inside the pipe joint 11 is too high, the liquid will flow faster due to the shape of the speed-increasing block 21 after passing through it. A pressure difference will be generated at a specific position of the speed-increasing block 21. This pressure difference will generate the flow power of the liquid in the channel formed by the connecting groove 22 and the detection groove 12.

[0035] Subsequently, the liquid squeezes the sealing block 25 through the connecting groove 22 and the detection groove 12, causing the sealing block 25 to compress the return spring 24 towards the positioning plate 23. After the sealing block 25 moves to the top of the pipe joint 11, the sealing block 25 and the detection groove 12 are pressed by the liquid to create a gap.

[0036] Finally, the pressure and fluid inside the pipe joint 11 will flow out through the gap between the detection groove 12 and the sealing block 25, thereby achieving the purpose of pressure relief. This achieves the effect of automatic pressure relief when the internal pressure of the pipe joint 11 is too high, preventing damage to the hydraulic system due to excessive pressure. At the same time, the pressure relief process is realized by using the Venturi tube principle. Compared with the traditional simple pressure relief method, the starting point and amount of pressure relief can be controlled more precisely. Through the speed-increasing block 21 and the Venturi tube principle, the pressure change inside the pipe joint 11 can be cleverly converted into the flow change of the fluid, thereby triggering the pressure relief process. Compared with the traditional hydraulic joint, which requires the additional installation of large and complex pressure sensors and control units to achieve similar functions, the structure is more compact and is conducive to application in hydraulic systems with limited space.

[0037] When the liquid impact sealing block 25 slides along the inside of the detection groove 12 to release pressure, the sealing block 25 will drive the first conductive block 31 at the top to rise synchronously. After the first conductive block 31 touches the second conductive block 32, because the first conductive block 31 is equipped with a power source, the second conductive block 32 and the alarm light 33 are electrically connected. Therefore, when the first conductive block 31 and the second conductive block 32 touch, the alarm light 33 lights up, which reminds the operator that the system has an abnormal pressure. In complex hydraulic systems, this warning allows the operator to know about the abnormal pressure at the first time and take corresponding measures. Moreover, this visual alarm method makes it easier to detect abnormal pressure. In some noisy industrial environments, or when the equipment is in a remote monitoring position, the operator cannot judge whether the pipe joint 11 is depressurizing by sound or direct observation. The alarm light 33 lights up as a visual signal, which can overcome these limitations and ensure that the abnormal pressure information is captured in time.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic joint with pressure relief function, comprising a pipe joint (11) and a detection groove (12) opened on the top of the pipe joint (11), characterized in that: The inside of the pipe joint (11) is provided with a pressure relief assembly for releasing liquid pressure, and the top of the pipe joint (11) is provided with an alarm assembly for prompting the staff to relieve pressure.

2. The hydraulic fitting with pressure relief function of claim 1, wherein: The pressure relief assembly comprises a speed increasing block (21), which is fixedly connected to the inside of the pipe joint (11), and the top of the speed increasing block (21) is provided with a communication groove (22).

3. The hydraulic fitting with pressure relief function of claim 2, wherein: The pressure relief assembly further comprises a positioning disc (23), which is fixedly connected to the top of the pipe joint (11), and the bottom of the positioning disc (23) is fixedly connected with a return spring (24), and the end of the return spring (24) away from the positioning disc (23) is fixedly connected with a sealing block (25).

4. The hydraulic fitting with pressure relief function of claim 3, wherein: The alarm assembly comprises a first conductive block (31), which is fixedly connected to the top of the sealing block (25), and the bottom of the positioning disc (23) is fixedly connected with a second conductive block (32), and the top of the positioning disc (23) is fixedly connected with an alarm lamp (33).

5. The hydraulic fitting with pressure relief function of claim 3, wherein: The communication groove (22) is communicated with the detection groove (12), and the sealing block (25) is slidingly connected to the inside of the detection groove (12).

6. The hydraulic fitting with pressure relief function of claim 4, wherein: The inside of the first conductive block (31) is provided with a power supply, and the second conductive block (32) and the alarm lamp (33) have an electrical connection relationship.

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