一种防气体逸散的保压取芯装置
By designing the enclosed and control components, the problems of gas escape and stress concentration in the transmission gears caused by the open port of the core barrel were solved, thereby improving the sealing performance and core retrieval stability and ensuring the smooth operation of the core retrieval process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA COALBED METHANE TECH DEV CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the port of the core sampling cylinder is always open, resulting in gas leakage and poor sealing. At the same time, stress concentration occurs on the meshing surface of the transmission gears, affecting the stability and service life of the core sampling process.
The system employs enclosed and control components, using structures such as positioning rods, support plates, and cylinder covers to control the opening and closing of the core-retrieving cylinder. Combined with threaded rods, moving blocks, and support rods, it achieves stable lifting and lowering of the slide plate, enhancing sealing and core-retrieving stability.
It effectively prevents gas escape, improves sealing effect, ensures the stability and service life of core sampling operation, reduces leakage, and enables smooth core sampling and material discharge.
Smart Images
Figure CN224515148U_ABST
Abstract
Claims
1. A gas-tight pressure-maintaining coring device comprising a coring barrel (1), characterized in that, Also includes: A fixing box (2) is provided on the outside of the core tube (1), and a box cover (3) is provided on one side of the fixing box (2); A sealing component (4) is provided on the outside of the fixed box (2). The sealing component (4) includes a positioning frame (41) provided on the outside of the fixed box (2). A positioning rod (42) is fixedly connected to the inside of the positioning frame (41). A support plate (43) is fixedly connected to one end of the positioning frame (41). A cylinder cover (44) is fixedly connected to one side of the support plate (43). A control component (5) is provided inside the core-taking cylinder (1). The control component (5) includes a threaded rod (51) provided inside the core-taking cylinder (1). A moving block (52) is threadedly connected to the outer side of the threaded rod (51). A support rod (53) is fixedly connected to the outer side of the moving block (52). A fixing block (54) is fixedly connected to one end of the support rod (53).
2. A gas leakage preventing pressure maintaining core taking device according to claim 1, characterized in that: A worm gear (6) is provided on the outer side of the positioning rod (42), and a worm (7) is meshed on the outer side of the worm gear (6). One end of the worm (7) is rotatably connected to one side of the inner wall of the fixed box (2).
3. A gas leakage preventing pressure maintaining core taking device according to claim 2, characterized in that: The other end of the worm (7) is fixedly connected to a first connecting rod (8), and a first motor (9) is provided at one end of the first connecting rod (8).
4. The pressure-holding coring device for preventing gas escape according to claim 1, characterized in that: One side of the inner wall of the fixed box (2) is fixedly connected to one side of the first motor (9), and a sealing gasket (10) is fixedly connected to one side of the cylinder cover (44).
5. The gas leakage preventing pressure maintaining core taking device according to claim 1, characterized in that: The bottom of the fixed block (54) is fixedly connected to the slide plate (11), and one end of the threaded rod (51) is provided with a first bevel gear (12).
6. A gas leakage preventing pressure maintaining core taking device according to claim 5, characterized in that: The outer side of the first bevel gear (12) is meshed with a second bevel gear (13), and the inner ring of the second bevel gear (13) is provided with a second connecting rod (14).
7. A gas leakage preventing pressure maintaining core taking device according to claim 6, characterized in that: A second motor (15) is provided at one end of the second connecting rod (14), and a fixing frame (16) is fixedly connected to one side of the second motor (15).
8. The gas-loss-preventing pressure-maintaining core taking device according to claim 1, characterized in that: The top of the inner cavity of the core-taking cylinder (1) is fixedly connected to the top of the fixing frame (16), and a partition plate (17) is fixedly connected inside the core-taking cylinder (1). The interior of the partition plate (17) is slidably connected to the outside of the support rod (53).