Mine pipeline connecting structure
By adopting a combination design of the inner support ring and the outer extrusion plate in the mine pipeline connection structure, combined with the slot and extrusion ring, the problem of insufficient or excessive clamping force in the traditional method is solved, and better sealing and The fixing effect ensures the stable operation of the mine ventilation system.
Patent Information
- Application Number
- CN202323651533.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-30
AI Technical Summary
Traditional mining pipeline connection methods have insufficient clamping force or excessively large, resulting in poor sealing properties, which may lead to pipeline deformation and damage.
A mining pipeline connection structure is designed, using a combination of inner support ring and outer extrusion sheet. Through the cooperation of slots and extrusion rings, annular sealing and stable clamping and fixing are achieved, adapted to pipes of different inner diameters, and through The gap and protruding structure of the outer extruded sheet enhance the sealing area and fixing effect.
It improves the sealing effect and fixing stability of pipeline connections, avoids pipe deformation and damage, and ensures the ventilation effect of the air supply system.
Smart Images
Figure CN222255412U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline connection, in particular to a mine pipeline connection structure. Background Art
[0002] Mine pipelines are the core components of mine ventilation systems. Due to the great mining depth, multiple pipelines need to be connected to each other for air supply in the ventilation system. In two adjacent pipelines, the sealing of the butt joint is often the key to the air supply effect. In traditional pipeline connections, they are generally fixed by pipe clamps. However, since the pipes are made of plastic, when the pipe clamps are clamped from the outside to the inside, a small clamping force will lead to an unsatisfactory connection effect of the pipes. A large clamping force will lead to excessive deformation of the pipes, unsatisfactory sealing effect, and may also cause damage to the pipes. Utility Model Content
[0003] The utility model aims at solving the problems in the prior art and provides a mine pipeline connection structure. The specific technical solution is as follows:
[0004] The mine pipeline connection structure includes a connection sleeve, and the two butt joint surfaces of the connection sleeve are both provided with a butt joint structure, and the butt joint structure includes the following parts arranged in sequence from the inside to the outside:
[0005] An inner support ring connected to the butt joint surface of the connecting sleeve and extending in the axial direction;
[0006] An outer extrusion sheet, one end of which is connected to the butt joint surface of the connecting sleeve, and the outer extrusion sheet and the inner support ring are spaced apart to form a slot for insertion;
[0007] An extrusion ring, sleeved outside the outer extrusion sheet and rotatably connected to the outer extrusion sheet;
[0008] When the pipe is inserted into the slot, the extrusion ring can be rotated to drive the outer extrusion sheet to retract inwards and cooperate with the inner support ring to clamp and fix the pipe.
[0009] As a further technical solution of the utility model, the outer diameter of the inner support ring gradually decreases along the extension direction, the inner diameter of the outer extrusion sheet gradually increases along the extension direction of the inner support ring, and the inclination of the outer diameter of the inner support ring matches the inclination of the inner diameter of the outer extrusion sheet.
[0010] As a further technical solution of the utility model, at least two groups of the outer extrusion sheets are provided, and at least two groups of the outer extrusion sheets are evenly distributed along the circumference of the connecting sleeve.
[0011] As a further technical solution of the utility model, there is a gap between two adjacent groups of the outer extrusion sheets.
[0012] As a further technical solution of the utility model, the radial width of the slot matches the thickness of the pipe.
[0013] As a further technical solution of the utility model, the end of the outer extrusion sheet away from the inner support ring has a radially extending protrusion.
[0014] The beneficial effects of the utility model are as follows:
[0015] (1) In the present application, the traditional one-way extrusion fixation on the outside is changed to an internal support and external extrusion method, and the internal contact surface of the pipe is ensured to be an annular seal, thereby ensuring the sealing effect and improving the fixing effect after the pipe is docked.
[0016] (2) In the present application, the portion of the inner wall of the pipe inserted into the slot can be deformed depending on the formation of the slot and fully contact the outer wall of the inner support ring. At the same time, the outer wall of the pipe is also fully contacted with the inner wall of the outer extrusion sheet, thereby increasing the sealing area and forming annular surface contact between the inside and outside, thereby enhancing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The overall schematic diagram of the mine pipeline connection structure is shown;
[0018] Figure 2 A cross-sectional structural schematic diagram of a mine pipeline connection structure is shown.
[0019] Legend:
[0020] 100, connecting sleeve; 110, inner support ring; 120, outer extrusion sheet; 121, protrusion; 130, extrusion ring; 140, slot. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.
[0022] Mine pipelines are the core components of mine ventilation systems. Due to the great mining depth, multiple pipelines need to be connected to each other for air supply in the ventilation system. In two adjacent pipelines, the sealing of the butt joint is often the key to the air supply effect. In traditional pipeline connections, they are generally fixed by pipe clamps. However, since the pipes are made of plastic, when the pipe clamps are clamped from the outside to the inside, a small clamping force will lead to an unsatisfactory connection effect of the pipes. A large clamping force will lead to excessive deformation of the pipes, unsatisfactory sealing effect, and may also cause damage to the pipes.
[0023] In view of the above technical problems, this application provides a mine pipeline connection structure. Figure 1 The overall schematic diagram of the mine pipeline connection structure is shown; Figure 2 A schematic cross-sectional view of a mine pipeline connection structure is shown; Figure 1 and Figure 2 In the embodiment, the mine pipeline connection structure includes a connection sleeve 100, and the two docking surfaces of the connection sleeve 100 are both provided with docking structures, and the docking structures include the following arranged in sequence from the inside to the outside:
[0024] The inner support ring 110 is connected to the butt joint surface of the connecting sleeve 100 and extends in the axial direction, and the outer diameter of the inner support ring 110 gradually decreases along the extension direction;
[0025] At least two groups of outer extrusion sheets 120 are provided, one end of the outer extrusion sheets 120 is connected to the butt joint surface of the connecting sleeve 100, at least two groups of outer extrusion sheets 120 are evenly distributed along the circumference of the connecting sleeve 100, and there is a gap between two adjacent groups of outer extrusion sheets 120. The outer extrusion sheets 120 and the inner support ring 110 are spaced to form a slot 140 for insertion, and the inner diameter of the outer extrusion sheets 120 gradually increases along the extension direction of the inner support ring 110;
[0026] An extrusion ring 130 is sleeved outside the outer extrusion sheet 120 and is rotatably connected to the outer extrusion sheet 120;
[0027] When the pipe is inserted into the slot 140 , the extrusion ring 130 can be rotated to drive the outer extrusion sheet 120 to collapse inward and cooperate with the inner support ring 110 to clamp and fix the pipe.
[0028] During use, the pipe is inserted into the slot 140. Since the outer diameter of the inner support ring 110 is a tapered design, it is easy to insert the pipe into the slot 140, and can make pipes with different inner diameters fit in a ring shape with the outer wall of the inner support ring 110, thereby ensuring the sealing of the contact surface between the pipe and the inner support ring 110. At the same time, after the pipe is inserted, the outer extrusion sheet 120 will be stretched open. At this time, the end of the outer extrusion sheet 120 away from the connecting sleeve 100 will be tilted outward. Since the outer extrusion sheet 120 is threadedly matched with the extrusion ring 130, when the extrusion ring 130 rotates, the extrusion ring 130 can rotate and move toward the end of the outer extrusion sheet 120, thereby squeezing the outer extrusion sheet 120. The sheet 120 is reset and the pipe is squeezed by the outer extrusion sheet 120. Since the pipe is supported by the inner support ring 110, the pipe is slightly deformed. At the same time, the pipe is fixed by the clamping between the inner support ring 110 and the outer extrusion sheet 120 to ensure continuous sealing of the pipe. The gap between the two adjacent groups of outer extrusion sheets 120 can ensure that the outer extrusion sheet 120 has a certain deformation range. In the present application, by changing the traditional outer one-way extrusion fixation, the internal support and external extrusion method is adopted, and the inner contact surface of the pipe is ensured to be annularly sealed, while ensuring the sealing effect, the fixing effect between adjacent pipes is improved.
[0029] Continue to see Figure 2 , the radial width of the slot 140 matches the thickness of the pipe.
[0030] During use, when the pipe is squeezed and deformed, since the inner diameter width of the slot 140 matches the thickness of the pipe, the part of the inner wall of the pipe inserted into the slot 140 can be completely deformed and fully contact with the outer wall of the inner support ring 110. At the same time, the outer wall of the pipe is also fully in contact with the inner wall of the outer extrusion sheet 120, thereby increasing the sealing area and enhancing the sealing effect.
[0031] Continue to see Figure 2 The outer extrusion sheet 120 has a radially extending protrusion 121 at one end away from the inner support ring 110 .
[0032] During use, the protrusion 121 can limit the movement range of the extrusion ring 130 , thereby preventing the extrusion ring 130 from separating from the outer extrusion sheet 120 .
[0033] Continue to see Figure 2 The outer diameter inclination of the inner support ring 110 matches the inner diameter inclination of the outer extrusion sheet 120 .
[0034] During use, through the above design, in cross section, the outer wall of the inner support ring 110 is parallel to the inner wall of the protrusion 121 , so that the formed slot 140 is an inclined rectangle, ensuring the contact surface between the pipe and the outer extrusion sheet 120 and the inner support ring 110 .
[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.
Claims
1. A mine pipeline connection structure, comprising a connection sleeve (100), characterized in that: Both butt joint surfaces of the connecting sleeve (100) are provided with butt joint structures, and the butt joint structures include: An inner support ring (110) connected to the butt joint surface of the connecting sleeve (100) and extending in the axial direction; an outer extrusion sheet (120), one end of the outer extrusion sheet (120) being connected to a butt joint surface of the connection sleeve (100), the outer extrusion sheet (120) and the inner support ring (110) being arranged at intervals to form a slot (140) for insertion therethrough; An extrusion ring (130) is sleeved outside the outer extrusion sheet (120) and is rotatably connected to the outer extrusion sheet (120); When the pipe is inserted into the slot (140), the extrusion ring (130) can be rotated to drive the outer extrusion sheet (120) to retract inwards and cooperate with the inner support ring (110) to clamp and fix the pipe.
2. The mine pipeline connection structure according to claim 1, characterized in that: The outer diameter of the inner support ring (110) gradually decreases along the extension direction, the inner diameter of the outer extrusion sheet (120) gradually increases along the extension direction of the inner support ring (110), and the inclination of the outer diameter of the inner support ring (110) matches the inclination of the inner diameter of the outer extrusion sheet (120).
3. The mine pipeline connection structure according to claim 1 or 2, characterized in that: At least two groups of the outer extrusion sheets (120) are provided, and the at least two groups of the outer extrusion sheets (120) are evenly distributed along the circumference of the connecting sleeve (100).
4. The mine pipeline connection structure according to claim 3, characterized in that: There is a gap between two adjacent groups of the outer extrusion sheets (120).
5. The mine pipeline connection structure according to claim 3, characterized in that: The radial width of the slot (140) matches the thickness of the pipe.
6. The mine pipeline connection structure according to claim 3, characterized in that: One end of the outer extrusion sheet (120) away from the inner support ring (110) has a radially extending protrusion (121).