An adaptive pipe seal docking mechanism

Abstract

This application relates to an adaptive pipe sealing and docking mechanism, including a fixed pipe fitting and a movable pipe fitting. The fixed pipe fitting has a floating docking pipe end that can move along its axial direction. The floating docking pipe has an elastic element that applies an elastic force along the axial direction to the floating docking pipe. When the movable pipe fitting docks with the fixed pipe fitting, the floating docking pipe abuts against the movable pipe fitting under the force of the elastic element, so that the inner cavities of the fixed pipe fitting and the movable pipe fitting are interconnected. This utility model provides a floating docking pipe at the docking point of the fixed pipe fitting and the movable pipe fitting. Under the action of the spring elastic force, the floating docking pipe can always fit against the end of the movable pipe fitting. A sealing ring is used to seal the fixed pipe fitting, the floating docking pipe, and the movable pipe fitting. Combined with the guide structure design of the guide slope and the guide part, it can facilitate the quick docking of the movable pipe fitting and the fixed pipe fitting, and has a good sealing effect.

Description

Technical Field

[0001] This application relates to the field of pipeline docking technology, and in particular to an adaptive pipeline sealing docking mechanism. Background Technology

[0002] A cyclone mill is a common piece of equipment used for crushing and processing grains, feed, and other solid materials. The material enters the grinding chamber through a feeding pipe and is crushed and ground by high-speed rotating hammers. The fine powder is then discharged and collected through a discharge pipe for subsequent analysis, testing, or batching. In a cyclone mill system, the sealing and connection accuracy of the material conveying pipe directly affect the crushing efficiency and the reliability of the test samples.

[0003] Existing material conveying pipelines are mostly fixed connection structures. However, in existing cyclone mill structures, to ensure material conveying stability and rational equipment layout, the discharge pipe usually needs to be installed on an openable cover or inspection door. This achieves convenient discharge and high grinding efficiency (e.g., Figure 4 The diagram shows the structure of the grinding chamber of an existing cyclone mill, which includes a grinding shell 10 and a door cover 9 mounted on the grinding shell. To ensure that the material falls accurately into the center of the grinding chamber, the feed pipe 12 is fixedly located at the center of the door cover 9 and is fixedly connected to the door cover 9. However, because the door cover needs to be opened and closed frequently during use, when the door cover is closed again, it is difficult for the feed pipe on it to accurately connect with the fixed discharge pipe of the upper feeding mechanism. This results in problems such as poor sealing, misalignment, or material leakage at the pipe connection point, affecting the continuous operation of the cyclone mill and the accuracy of sample collection.

[0004] In addition, similar situations often occur in other material transfer or sample unloading processes, where one side of the pipe is fixed while the other side shifts with the movement of equipment components, resulting in the inability to achieve a reliable sealing connection between the two pipe ends after docking, thus reducing the overall sealing and adaptability of the material conveying system. Utility Model Content

[0005] To address the problem mentioned in the background art that the opening and closing of existing door covers prevents the unloading pipe from automatically sealing and connecting with the upper feeding pipe, resulting in material leakage and unstable connection, this application provides an adaptive pipe sealing and connection mechanism.

[0006] The adaptive pipeline sealing and docking mechanism provided in this application adopts the following technical solution: An adaptive pipe sealing and docking mechanism includes a fixed pipe fitting and a movable pipe fitting; The fixed pipe end is provided with a floating connecting pipe that can move along its axial direction. The floating connecting pipe is provided with an elastic element, which is used to apply an elastic force in the axial direction to the floating connecting pipe. When the movable pipe is connected to the fixed pipe, the floating connecting pipe abuts against the movable pipe under the force of the elastic element, so that the inner cavities of the fixed pipe and the movable pipe are interconnected.

[0007] By adopting the above technical solution, a floating butt joint is set between the fixed pipe fitting and the movable pipe fitting, and the floating butt joint can abut against the movable pipe fitting under the action of the elastic element, so that the fixed pipe fitting and the movable pipe fitting can be connected. This helps to simplify the complexity of connecting the two pipe fittings and improve the connection efficiency.

[0008] Optionally, the floating butt joint is slidably and sealingly connected to the inside or outside of the fixed pipe fitting.

[0009] By adopting the above technical solutions, floating butt joints can be installed inside or outside fixed pipe fittings according to actual structural requirements, thereby improving the applicability of pipe connections.

[0010] Optionally, the floating coupling tube is slidably disposed outside the fixed pipe fitting. The inner wall of the floating coupling tube is provided with a limiting protrusion extending towards the center. A locking ring is installed at the lower end of the fixed pipe fitting. The outer diameter of the locking ring is larger than the inner diameter of the limiting protrusion. This configuration is such that when the floating coupling tube moves to the outer limit position under the action of the elastic element, the limiting protrusion contacts the locking ring to achieve axial limiting of the floating coupling tube.

[0011] By adopting the above technical solution, the problem of the floating connector falling off the end of the fixed pipe fitting can be prevented by setting the limiting protrusion ring and the locking ring.

[0012] Optionally, it also includes a fixing sleeve, which is stationary relative to the fixing pipe, and the elastic element is a spring, with the upper end of the spring abutting against the end of the fixing sleeve and the lower end of the spring abutting against the end of the floating coupling pipe.

[0013] By adopting the above technical solution, one end of the spring abuts against the fixed sleeve as the fixed end, and the other end serves as the movable end, which is used to drive the floating coupling tube to achieve axial movement.

[0014] Optionally, the end of the fixed sleeve is provided with a first retaining ring extending outward along the axial direction, and the end of the floating coupling tube is provided with a second retaining ring extending outward along the axial direction. The spring is disposed inside the first retaining ring and the second retaining ring. The first retaining ring and the second retaining ring are nested together, and when the spring is in the maximum extension state, the radial projections of the first retaining ring and the second retaining ring overlap at the port.

[0015] By adopting the above technical solution, the first and second retaining rings can be used to shield the location of the spring, preventing foreign objects from entering the working area of ​​the spring. This is beneficial to the flexibility and reliability of the floating coupling tube during operation and extends the service life of the spring.

[0016] Optionally, the movement trajectory of the movable pipe fitting is set perpendicularly, inclined, or parallel to the axis of the fixed pipe fitting.

[0017] By adopting the above technical solutions, the movable pipe fittings can be designed with different movement trajectories according to different actual working requirements, and in the final docking state, they can all achieve docking with the fixed pipe fittings.

[0018] Optionally, when the movement trajectory of the movable pipe is perpendicular to the axial direction of the fixed pipe, an inclined guide slope is provided at the port of the movable pipe, and a guide portion matching the guide slope is provided at the end of the floating coupling pipe.

[0019] By adopting the above technical solution, when the movable pipe moves horizontally, the structural design of the guide slope and guide part can be used to enable the movable pipe to smoothly enter the end position of the floating docking pipe, achieving a rapid docking effect and preventing damage to the pipe due to interference problems in the movement path.

[0020] Optionally, a second sealing ring is installed at the end of the floating coupling pipe, and the movable pipe abuts against the second sealing ring when the movable pipe is connected to the floating coupling pipe.

[0021] By adopting the above technical solution, it is mainly used to achieve the sealing connection between the floating butt joint and the movable pipe fitting using the second sealing ring. Since the floating butt joint and the fixed pipe fitting are also sealed together, the movable pipe fitting can have a good sealing effect at the connection point after the connection is completed, thus preventing material leakage.

[0022] In summary, this application includes at least one of the following beneficial technical effects: This invention features a floating connecting pipe at the joint between the fixed and movable pipe fittings. Under the elastic force of the spring, the floating connecting pipe always fits the end of the movable pipe fitting. A sealing ring is used to seal the connection between the fixed pipe fitting, the floating connecting pipe, and the movable pipe fitting. Combined with the guide structure design of the guide slope and the guide part, it facilitates quick docking between the movable and fixed pipe fittings and provides a good sealing effect. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a perspective view of the present invention in its usage state; Figure 3This is an overall structural diagram of the cyclone mill equipment of this utility model; Figure 4 This is a schematic diagram of the structure of the material feeding pipe connected to the door cover in the existing technology.

[0024] Explanation of reference numerals in the attached figures: 1. Fixed pipe fitting; 2. Fixed sleeve; 201. First retaining ring; 3. Spring; 4. Floating connecting pipe; 401. Guide part; 402. Second retaining ring; 403. Limiting protrusion ring; 5. Second sealing ring; 6. Movable pipe fitting; 601. Guide slope; 7. Locking ring; 8. First sealing ring; 9. Door cover; 10. Grinding shell; 11. Feeding mechanism; 12. Discharge pipe. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses an adaptive pipe sealing and docking mechanism, including a fixed pipe fitting 1 and a movable pipe fitting 6. In this example, the adaptive pipe sealing and docking mechanism is mainly applied to a cyclone mill. It is understood that in other embodiments, the docking mechanism can also be applied to a water-cooled pulverizer or other automated equipment, and is suitable for situations where one pipe is fixed and the other pipe is movable, and the two need to be docked and connected.

[0027] In this example, the fixed pipe 1 is used to connect to the upper feeding mechanism 11, and the movable pipe 6 is installed on the door cover 9 of the cyclone mill. After the door cover 9 is closed, it forms a grinding chamber with the inside of the grinding shell 10. The feeding mechanism 11 mainly includes a feeding hopper and a screw feeder in the middle position. When feeding is not performed, the screw feeder stops working. At this time, the movable pipe 6 can be separated from the fixed pipe 1. After the maintenance work is completed, the door cover 9 is closed, and the movable pipe 6 on it can be directly connected to the fixed pipe 1.

[0028] The fixed pipe 1 is provided with a floating connecting pipe 4 at its end, which can move along its axial direction. The floating connecting pipe 4 is provided with an elastic element, which is used to apply an elastic force in the axial direction to the floating connecting pipe 4. When the movable pipe 6 is connected to the fixed pipe 1, the floating connecting pipe 4 abuts against the movable pipe 6 under the force of the elastic element, so that the inner cavities of the fixed pipe 1 and the movable pipe 6 are interconnected.

[0029] The floating connecting pipe 4 is slidably and sealingly connected to the inside or outside of the fixed pipe 1. Specifically, in this example, the floating connecting pipe 4 is slidably positioned outside the fixed pipe 1. A first sealing ring 8 is installed on the upper part of the inner wall of the floating connecting pipe 4 to seal the connection between the fixed pipe 1 and the floating pipe. A limiting protrusion 403 extending towards the center is provided on the inner wall of the floating connecting pipe 4. A locking ring 7 is installed at the lower end of the fixed pipe 1. The outer diameter of the locking ring 7 is larger than the inner diameter of the limiting protrusion 403. This locking ring is configured to axially limit the floating connecting pipe 4 when it moves to its outer limit position under the force of the elastic element, by contacting the locking ring 7 with the limiting protrusion 403, thus preventing the floating connecting pipe 4 from falling off the end of the fixed pipe 1.

[0030] Specifically, it also includes a fixing sleeve 2, which is stationary relative to the fixing pipe 1. In this example, the fixing sleeve 2 and the fixing pipe 1 are separate independent components. The fixing sleeve 2 is installed on the frame of the cyclone mill and is therefore in a fixed state. It can be understood that in other embodiments, the fixing sleeve 2 and the fixing pipe 1 can also be designed as an integral structure. The elastic element is a spring 3. The upper end of the spring 3 abuts against the end position of the fixing sleeve 2, and the lower end of the spring 3 abuts against the end position of the floating coupling pipe 4. That is, when the spring 3 is working, it always applies an axial outward elastic force to the floating coupling pipe 4.

[0031] Specifically, the end of the fixed sleeve 2 is provided with a first retaining ring 201 extending outward along the axial direction, and the end of the floating coupling tube 4 is provided with a second retaining ring 402 extending outward along the axial direction. The spring 3 is disposed inside the first retaining ring 201 and the second retaining ring 402. The first retaining ring 201 and the second retaining ring 402 are nested together. When the spring 3 is in its maximum extension state, the radial projections of the first retaining ring 201 and the second retaining ring 402 overlap at the port. In this example, the inner diameter of the first retaining ring 201 is larger than the outer diameter of the second retaining ring 402, that is, the first retaining ring 201 is located outside the second retaining ring 402. This prevents debris from falling between the first retaining ring 201 and the second retaining ring 402 due to gravity, and also prevents the normal operation of the spring 3 from being affected.

[0032] Specifically, the movement trajectory of the movable pipe 6 is set perpendicularly, inclined, or parallel to the axis of the fixed pipe 1. In this embodiment, the movement trajectory of the movable pipe 6 is perpendicular to the axis of the fixed pipe 1. It can be understood that in other embodiments, the movable pipe 6 may also move at an angle relative to the axis of the fixed pipe 1, thereby finally docking with the fixed pipe 1, or the fixed pipe 1 and the movable pipe 6 may be in a coaxial state, with the movable pipe 6 moving along the axial direction to achieve the effect of docking with the fixed pipe 1.

[0033] When the movement trajectory of the movable pipe 6 is perpendicular to the axis of the fixed pipe 1, an inclined guide slope 601 is provided at the port of the movable pipe 6, and a guide portion 401 matching the guide slope 601 is provided at the end of the floating coupling pipe 4. The guide slope 601 is provided at least on one side of the end of the movable pipe 6, that is, when the movable pipe 6 moves to the area below the fixed pipe 1, the side with the guide slope 601 enters the area below the fixed pipe 1 first, and is used to cooperate with the guide portion 401 so that the movable pipe 6 can smoothly connect with the floating coupling pipe 4. In this example, the guide portion 401 at the lower end of the floating coupling pipe 4 is a chamfered or rounded structure provided on the outer side of the lower end of the floating coupling pipe 4.

[0034] In this example, a second sealing ring 5 is installed at the end of the floating coupling pipe 4. When the movable pipe 6 is connected to the floating coupling pipe 4, the movable pipe 6 abuts against the second sealing ring 5.

[0035] In this embodiment, the sealing and docking mechanism has a movable tube 6 installed on the door cover 9 of the cyclone mill housing 10. The lower end of the movable tube 6 is connected to the center of the door cover 9, so that the material can directly enter the grinding chamber for crushing and grinding. During the closing of the door cover 9, the movable tube 6 can quickly enter below the floating docking tube 4 under the action of the guide slope 601 and the guide part 401 (the movable tube 6 is...). Figure 1 (Movement in the direction of the arrow shown) When the door cover 9 is fully closed, the movable pipe 6 is exactly below the floating connecting pipe 4. Under the action of the spring 3, the floating connecting pipe 4 is in close contact with the end face of the movable pipe 6, and the sealing effect is achieved through the second sealing ring 5 to avoid leakage during the process of material falling.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adaptive pipe sealing docking mechanism, characterized by, Includes fixed pipe fittings (1) and movable pipe fittings (6); The fixed pipe (1) has a floating connecting pipe (4) at its end that can move along its axial direction. The floating connecting pipe (4) has an elastic element that applies an elastic force in the axial direction to the floating connecting pipe (4). When the movable pipe (6) is connected to the fixed pipe (1), the floating connecting pipe (4) abuts against the movable pipe (6) under the force of the elastic element, so that the inner cavities of the fixed pipe (1) and the movable pipe (6) are connected to each other.

2. An adaptive pipe sealing docking mechanism according to claim 1, wherein, The floating connecting pipe (4) is slidably and sealingly connected to the inside or outside of the fixed pipe (1).

3. A self-adapting pipe sealing docking mechanism according to claim 1, wherein, The floating connecting pipe (4) is slidably disposed outside the fixed pipe (1). The inner wall of the floating connecting pipe (4) is provided with a limiting protrusion (403) extending towards the center. The lower end of the fixed pipe (1) is equipped with a locking ring (7). The outer diameter of the locking ring (7) is larger than the inner diameter of the limiting protrusion (403). It is configured such that when the floating connecting pipe (4) moves to the outer limit position under the action of the elastic element, the limiting protrusion (403) contacts the locking ring (7) to realize the axial limiting of the floating connecting pipe (4).

4. A self-adapting pipe sealing docking mechanism according to claim 1, wherein, It also includes a fixed sleeve (2), which is stationary relative to the fixed pipe (1). The elastic element is a spring (3), with the upper end of the spring (3) abutting the end of the fixed sleeve (2) and the lower end of the spring (3) abutting the end of the floating connecting pipe (4).

5. An adaptive pipe sealing docking mechanism according to claim 4, wherein, The end of the fixed sleeve (2) is provided with a first retaining ring (201) extending outward along the axial direction, and the end of the floating coupling tube (4) is provided with a second retaining ring (402) extending outward along the axial direction. The spring (3) is disposed inside the first retaining ring (201) and the second retaining ring (402). The first retaining ring (201) and the second retaining ring (402) are nested together, and when the spring (3) is in the maximum extension state, the projections of the first retaining ring (201) and the second retaining ring (402) in the radial direction overlap at the port.

6. An adaptive pipe sealing docking mechanism according to claim 1, wherein, The movement trajectory of the movable pipe (6) is set perpendicularly, inclined or parallel to the axis of the fixed pipe (1).

7. An adaptive pipe sealing docking mechanism according to claim 6, wherein, When the movement trajectory of the movable pipe (6) is perpendicular to the axis of the fixed pipe (1), an inclined guide slope (601) is provided at the port of the movable pipe (6), and a guide part (401) matching the guide slope (601) is provided at the end of the floating connecting pipe (4).

8. An adaptive pipe sealing docking mechanism according to claim 1, wherein, The end of the floating coupling pipe (4) is equipped with a second sealing ring (5). When the movable pipe (6) is connected to the floating coupling pipe (4), the movable pipe (6) abuts against the second sealing ring (5).

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