High pressure liquid level seal

Abstract

The utility model relates to liquid level gauge installation technical field, specifically disclose a kind of high-pressure liquid level sealing device, its lower end is fixedly connected with high-pressure branch pipe, the lower end of high-pressure branch pipe is fixedly connected with second connector, the lower portion of second connector is provided with limit flange, the surface of limit flange is fixedly connected with guiding branch pipe, the upper end of guiding branch pipe is fixedly connected with positioning pipe mouth, the upper surface of positioning pipe mouth is fixedly connected with sealing ring, the lower end outer surface of positioning pipe mouth is provided with sealing flange, the surface of sealing flange is fixedly connected with pressing screw rod. This high-pressure liquid level sealing device, the device is locked with second connector, limit flange screw connection by locking clamping plate, annular locking clamping plate can even force, tightly fixed connection part, effectively prevent loosening, guarantee sealing stability, improve the security and reliability of liquid level gauge work under high-pressure environment, accurate positioning guarantee sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge installation technology, specifically a high-pressure liquid level sealing device. Background Technology

[0002] A pressure level gauge is a pressure sensor that measures liquid level. Based on the principle that the static pressure of the liquid is proportional to its height, when the level transmitter is submerged to a certain depth in the liquid, the sensor's liquid-facing surface is subjected to pressure. The liquid pressure is introduced into the sensor's positive pressure chamber through a stainless steel guide tube, while the atmospheric pressure above the liquid surface is connected to the sensor's negative pressure chamber to counteract the atmospheric pressure behind the sensor, allowing the sensor to measure the pressure. The level sensor is the core component, typically employing diffused silicon sensing elements or ceramic capacitive pressure sensors to sense liquid pressure and convert it into an electrical signal. The sealing device of a high-pressure level gauge is crucial for ensuring its normal operation and safety under high-pressure environments.

[0003] Existing pressure level gauges are typically fixed by flanges during sealing installation, followed by bolts for positioning. During operation, the equipment will vibrate, which can easily loosen the bolts on the sealing device surface, leading to the failure of the sealing structure and reducing its practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a high-pressure liquid level sealing device to solve the problem mentioned in the background art that existing pressure liquid level gauges are generally fixed by flange docking during sealing installation, and then positioned by bolts. During use, the operation of the equipment will generate vibration, which can easily cause the bolts on the surface of the sealing device to loosen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure liquid level sealing device, comprising a first connector, the lower end of which is fixedly connected to a high-pressure branch pipe, a second connector fixedly connected to the lower end of the high-pressure branch pipe, a limiting flange provided below the second connector, a guide branch pipe installed through the surface of the limiting flange, a positioning port fixedly connected to the upper end of the guide branch pipe, a sealing ring fixedly connected to the upper surface of the positioning port, a sealing flange provided on the lower outer surface of the positioning port, a clamping screw installed through the surface of the sealing flange, a clamping nut threaded on the upper outer surface of the clamping screw, a locking plate installed on the lower outer surface of the second connector, and an auxiliary positioning mechanism provided between the second connector and the locking plate, which drives the positioning slide plate to slide vertically through the support slider on the inner wall of the locking plate, causing the squeezing groove to push the anti-slip block to slide horizontally and engage the positioning port.

[0006] Preferably, the first connector, the high-pressure branch pipe, and the second connector are interconnected, the outer surface of the second connector is provided with threads, and the outer surface of the limiting flange is provided with threads.

[0007] By adopting the above technical solution, the outer surface of the second connector and the limiting flange is provided with threads, which allows them to be easily connected to other components with internal threads, such as related pipe or equipment interfaces, thereby enhancing the versatility and ease of installation of the device.

[0008] Preferably, the locking plate is a ring-shaped design, the inner wall of the locking plate is provided with threads, the locking plate and the second connector form a threaded connection, and the locking plate and the limiting flange form a threaded connection.

[0009] Using the above technical solution, the ring-shaped locking plate can evenly apply pressure to the second connector and the limiting flange. Through threaded connection, it provides a more reliable and tighter fixing effect compared to other connection methods. Under high pressure and vibration environments, it effectively prevents loosening of the connection points and ensures the stability of the sealing device.

[0010] Preferably, the auxiliary positioning mechanism includes a support slider, which is disposed on the inner wall of the locking plate. The outer surface of the second connector is provided with a groove, and a positioning slide plate is installed on the inner wall of the groove of the second connector. A pressing groove is opened on the upper side surface of the positioning slide plate, and an anti-slip block is embedded in the inner wall of the second connector.

[0011] By adopting the above technical solution, the auxiliary positioning mechanism provides an additional positioning method for the positioning tube opening through the coordinated work of multiple components. The support slider, positioning slide plate, extrusion groove and anti-slip block cooperate with each other to accurately fix the positioning tube opening in the appropriate position, prevent it from shifting during use, and improve the positioning accuracy of the sealing device.

[0012] Preferably, the support slider and the groove on the inner wall of the locking plate are slidably connected, and one end of the support slider is fixedly connected to the lower side surface of the positioning slide plate.

[0013] By adopting the above technical solution, this connection method enables the rotation or movement of the locking plate to be accurately transmitted to the positioning slide plate. When the locking plate rotates or moves, the support slider slides in the groove, driving the positioning slide plate to slide vertically, ensuring the accuracy and stability of the positioning slide plate's movement, thereby ensuring the reliable operation of the auxiliary positioning mechanism.

[0014] Preferably, the positioning slide plate and the second connector are slidably connected, the positioning slide plate is L-shaped, and the top surface of the extrusion groove is inclined.

[0015] By adopting the above technical solution, the L-shaped positioning slide plate not only ensures the stability of the sliding connection with the second connector, but also achieves a specific function by utilizing its special shape during vertical sliding. The inclined design of the top surface of the squeezing groove enables the positioning slide plate to effectively convert the vertical movement into the horizontal movement of the anti-slip block during vertical sliding, accurately pushing the anti-slip block to engage with the positioning tube opening, thereby improving the reliability and efficiency of positioning.

[0016] Preferably, the anti-slip block and the second connector are slidably connected, and a spring is connected between the anti-slip block and the second connector. The surface of the anti-slip block facing the extrusion groove is arc-shaped, and a slot is provided on the outer surface of the positioning tube.

[0017] Using the above technical solution, the anti-slip block is slidably connected to the second connector and the spring provides elasticity, so that it can always maintain a tight engagement with the positioning tube slot. The arc-shaped surface design helps the anti-slip block slide more smoothly when pushed by the compression groove, and after engagement, it can better fit the slot, prevent the positioning tube from loosening, and enhance the positioning effect.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This high-pressure liquid level sealing device:

[0019] 1. This device is connected to the second connector and the limiting flange by a locking plate. The annular locking plate can apply force evenly and tightly fix the connection parts, effectively preventing loosening, ensuring stable sealing, improving the safety and reliability of the level gauge in high-pressure environments, and ensuring sealing performance through accurate positioning.

[0020] 2. Through the auxiliary positioning mechanism, the support slider drives the positioning slide plate to slide vertically, and the squeezing groove pushes the anti-slip block to slide horizontally and engage with the positioning tube opening. Precise positioning ensures that the sealing ring fits tightly, improves the sealing effect, prevents high-pressure medium leakage, and ensures that the level gauge accurately measures the liquid level.

[0021] 3. The threaded design of the second connector, limit flange and locking plate facilitates connection with other components, allows for flexible adjustment of position during installation, improves installation efficiency, and makes disassembly easy when maintaining or replacing components. The sliding connection structure of the auxiliary positioning mechanism is simple, making it easy to inspect, clean, lubricate and replace, thus reducing maintenance costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the first connector and the high-pressure branch pipe of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the high-pressure branch pipe and the second connector of this utility model;

[0024] Figure 3This is a three-dimensional structural diagram of the connection between the clamping screw and the clamping nut of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the limiting flange and the guide branch pipe of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the support slider and the positioning slide plate of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the positioning slide plate and the extrusion groove of this utility model.

[0028] In the diagram: 1. First connector; 2. High-pressure branch pipe; 3. Second connector; 4. Limiting flange; 5. Guide branch pipe; 6. Positioning port; 7. Sealing ring; 8. Sealing flange; 9. Tightening screw; 10. Tightening nut; 11. Locking plate; 12. Support slider; 13. Positioning slide plate; 14. Extrusion groove; 15. Anti-slip block. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a high-pressure liquid level sealing device, including a first connector 1, a high-pressure branch pipe 2, a second connector 3, a limiting flange 4, a guide branch pipe 5, a positioning port 6, a sealing ring 7, a sealing flange 8, a clamping screw 9, a clamping nut 10, a locking plate 11, a supporting slider 12, a positioning slide plate 13, a compression groove 14, and an anti-slip block 15. The lower end of the first connector 1 is fixedly connected to the high-pressure branch pipe 2, and the lower end of the high-pressure branch pipe 2 is fixedly connected to the second connector 3. A locking plate is provided below the second connector 3. The limiting flange 4, the first connector 1, the high-pressure branch pipe 2, and the second connector 3 are interconnected. The outer surface of the second connector 3 is threaded, and the outer surface of the limiting flange 4 is threaded. The first connector 1 is used to connect a level gauge or related equipment. It is fixedly connected to the lower end of the high-pressure branch pipe 2. The high-pressure branch pipe 2 is then connected to the second connector 3, and the three are interconnected to provide a channel for the flow of media. The threads on the outer surface of the second connector 3 and the threads on the outer surface of the limiting flange 4 facilitate connection with other pipes or equipment interfaces with internal threads.

[0031] A guide branch pipe 5 is installed through the surface of the limiting flange 4. A positioning port 6 is fixedly connected to the upper end of the guide branch pipe 5. A sealing ring 7 is fixedly connected to the upper surface of the positioning port 6. A sealing flange 8 is provided on the lower outer surface of the positioning port 6. A clamping screw 9 is installed through the surface of the sealing flange 8. A clamping nut 10 is threaded on the upper outer surface of the clamping screw 9. The locking plate 11 is a ring design. The inner wall of the locking plate 11 is threaded. The locking plate 11 and the second connector 3 form a threaded connection. The locking plate 11 and the limiting flange 4 form a threaded connection. The guide branch pipe 5 is installed through the limiting flange 4. A sealing ring 7 is fixed on the upper surface of the positioning port 6 at the upper end of the guide branch pipe 5. A clamping screw 9 is installed through the sealing flange 8 on the lower outer surface of the positioning port 6. By tightening the clamping nut 10, the sealing flange 8 and the positioning port 6 are tightly fitted, and a preliminary seal is achieved.

[0032] A locking plate 11 is installed on the lower outer surface of the second connector 3. The auxiliary positioning mechanism includes a support slider 12, which is disposed on the inner wall of the locking plate 11. The outer surface of the second connector 3 is provided with a groove, and a positioning slide plate 13 is installed on the inner wall of the groove of the second connector 3. A pressing groove 14 is opened on the upper side surface of the positioning slide plate 13. An anti-slip block 15 is embedded in the inner wall of the second connector 3. When the locking plate 11 is rotated, since the inner wall of the locking plate 11 has threads, it forms a threaded connection with the second connector 3 and the limiting flange 4. During the rotation, the support slider 12 on the inner wall of the locking plate 11 slides in the groove on its inner wall, which drives the positioning slide plate 13 fixedly connected to it to slide vertically.

[0033] An auxiliary positioning mechanism is provided between the second connector 3 and the locking plate 11. This mechanism, through the support slider 12 on the inner wall of the locking plate 11, drives the positioning slide plate 13 to slide vertically, causing the pressing groove 14 to push the anti-slip block 15 to slide horizontally and engage the positioning tube opening 6. The support slider 12 and the sliding groove on the inner wall of the locking plate 11 form a sliding connection. One end of the support slider 12 is fixedly connected to the lower side surface of the positioning slide plate 13. The positioning slide plate 13 and the second connector 3 form a sliding connection. The positioning slide plate 13 has an L-shaped design, and the top surface of the pressing groove 14 is inclined. The anti-slip block 15 and the second connector 3 form a sliding connection, and a spring connects the anti-slip block 15 and the second connector 3. The surface of the compression groove 14 is arc-shaped, and the outer surface of the positioning port 6 is provided with a slot. The positioning slide plate 13 is L-shaped and slides in the groove on the outer surface of the second connector 3. The compression groove 14, which is designed with an inclined upper side surface, pushes the anti-slip block 15 embedded in the inner wall of the second connector 3 to slide horizontally. A spring is connected between the anti-slip block 15 and the second connector 3. During the pushing process, the spring provides a certain buffer, and the arc-shaped surface of the anti-slip block 15 allows it to slide smoothly. Finally, it is locked in the slot on the outer surface of the positioning port 6, which further positions and reinforces the positioning port 6, enhances the stability of the sealing device under high pressure and vibration environment, prevents the connection part from loosening, and ensures the sealing effect.

[0034] Working principle: When using this high-pressure liquid level sealing device, the first connector 1 is connected to the liquid level gauge or other equipment. The high-pressure branch pipe 2 is connected and fixed to the second connector 3. The guide branch pipe 5 is installed through the thread on the outer surface of the second connector 3 and the limiting flange 4. The sealing ring 7 on the positioning port 6 cooperates with the sealing flange 8. By tightening the clamping screw 9 and the clamping nut 10, the annular locking plate 11 is rotated to drive the support slider 12 and the positioning slide plate 13 to slide vertically. The positioning slide plate 13 slides in the groove of the second connector 3, and the squeezing groove 14 pushes the anti-slip block 15 to slide horizontally into the slot of the positioning port 6, which enhances the sealing effect, ensures the stable operation of the liquid level gauge, and increases the overall practicality.

[0035] 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 high-pressure liquid level sealing device, comprising a first connector (1), the lower end of which is fixedly connected to a high-pressure branch pipe (2), the lower end of which is fixedly connected to a second connector (3), characterized in that: A limiting flange (4) is provided below the second connector (3). A guide branch pipe (5) is installed through the surface of the limiting flange (4). A positioning port (6) is fixedly connected to the upper end of the guide branch pipe (5). A sealing ring (7) is fixedly connected to the upper surface of the positioning port (6). A sealing flange (8) is provided on the lower outer surface of the positioning port (6). A clamping screw (9) is installed through the surface of the sealing flange (8). A clamping nut (10) is threaded on the upper outer surface of the clamping screw (9). A locking plate (11) is installed on the lower outer surface of the second connector (3). An auxiliary positioning mechanism is provided between the second connector (3) and the locking plate (11). The positioning slide plate (13) is driven to slide vertically through the support slider (12) on the inner wall of the locking plate (11), so that the extrusion groove (14) pushes the anti-slip block (15) to slide horizontally and engage the positioning port (6).

2. The high-pressure liquid level sealing device according to claim 1, characterized in that: The first connector (1), the high-pressure branch pipe (2), and the second connector (3) are interconnected. The outer surface of the second connector (3) is provided with threads, and the outer surface of the limiting flange (4) is provided with threads.

3. The high-pressure liquid level sealing device according to claim 1, characterized in that: The locking plate (11) is a ring design. The inner wall of the locking plate (11) is provided with threads. The locking plate (11) and the second connector (3) form a threaded connection. The locking plate (11) and the limiting flange (4) form a threaded connection.

4. The high-pressure liquid level sealing device according to claim 1, characterized in that: The auxiliary positioning mechanism includes a support slider (12), which is disposed on the inner wall of the locking plate (11). The outer surface of the second connector (3) is provided with a groove, and the inner wall of the groove of the second connector (3) is equipped with a positioning slide plate (13). The upper side surface of the positioning slide plate (13) is provided with a pressing groove (14), and the inner wall of the second connector (3) is embedded with an anti-slip block (15).

5. A high-pressure liquid level sealing device according to claim 4, characterized in that: The support slider (12) and the inner wall of the locking plate (11) form a sliding connection, and one end of the support slider (12) is fixedly connected to the lower side surface of the positioning slide plate (13).

6. A high-pressure liquid level sealing device according to claim 4, characterized in that: The positioning slide plate (13) and the second connector (3) are connected in a sliding manner. The positioning slide plate (13) is L-shaped and the top surface of the extrusion groove (14) is inclined.

7. A high-pressure liquid level sealing device according to claim 4, characterized in that: The anti-slip block (15) and the second connector (3) form a sliding connection, and a spring is connected between the anti-slip block (15) and the second connector (3). The surface of the anti-slip block (15) facing the extrusion groove (14) is arc-shaped, and the outer surface of the positioning tube (6) is provided with a slot.

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