An auxiliary device for water lifting test
By designing auxiliary equipment for water lifting tests using core tubes and opening/closing mechanisms, the problems of complex terrain and insufficient ease of operation in hilly areas were solved, enabling the equipment to be easily portable and for low-cost water lifting tests.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY ENG CONSULTING GRP CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-23
AI Technical Summary
When conducting water-lifting tests in hilly areas, the complex terrain and lack of operational convenience, coupled with the need for a large amount of manpower for equipment transportation and installation, increase the difficulty and cost of the tests.
An auxiliary device for water lifting tests, comprising a core tube and an opening and closing mechanism, was designed. By utilizing the cooperation of plugs and locking devices, the fluid medium can be sealed and connected, simplifying the carrying and operation of the equipment.
It reduces the amount of equipment carried in field drilling operations, lowers the difficulty and cost of testing, and improves the convenience of operation.
Smart Images
Figure CN224396472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary instruments for drilling equipment, and more specifically, to an auxiliary device for a water lifting test. Background Technology
[0002] During engineering geological exploration, some hilly areas are unsuitable for pumping tests due to the inherent water abundance and weak recharge of the mountains; instead, water lifting tests are typically conducted. Water lifting tests are an important field testing method that allows for a simpler and more convenient determination of borehole inflow and aquifer permeability, and are easily implemented quickly in the field. However, water lifting tests are often conducted in mountainous or suburban settings, frequently encountering challenges such as complex terrain and limited operational convenience. Furthermore, water lifting tests require specialized equipment and tools, and the transportation and installation of this equipment demand significant manpower, increasing the difficulty and cost of the test and hindering its implementation. Utility Model Content
[0003] The purpose of this invention is to provide an auxiliary device for water lifting tests to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:
[0004] This application provides an auxiliary device for water lifting tests, comprising: a core tube and an opening and closing mechanism; the core tube includes a water storage section and a water inlet section fixedly connected to each other, both of which are hollow cylinders, the inner diameter of the water storage section being larger than the inner diameter of the water inlet section, and a conical slope being formed at the connection between the water storage section and the water inlet section; the opening and closing mechanism is disposed inside the core tube, and includes a connecting rod and a plug and a locking control fixedly disposed at both ends of the connecting rod, the plug being a sphere disposed inside the water storage section, the locking control being disposed at the bottom of the water inlet section, the connecting rod moving linearly along the axial direction of the water inlet section, and the locking control facing the bottom of the borehole.
[0005] Furthermore, the bottom of the water inlet is provided with a cavity to accommodate the card control.
[0006] Furthermore, the cavity is a conical cavity that is narrower at the top and wider at the bottom, the control device is a cylinder, and the diameter of the lower opening of the cavity is larger than the outer diameter of the control device.
[0007] Furthermore, when the card control touches the bottom, a gap is formed between it and the side wall of the cavity.
[0008] Furthermore, the diameter of the plug is smaller than the inner diameter of the water storage section, and the diameter of the plug is larger than the inner diameter of the water inlet section.
[0009] Furthermore, the opening and closing mechanism is disposed in the core tube; when the water lifting test auxiliary equipment is in the lifting state, the plug moves toward the bottom of the hole under gravity, the plug contacts the conical slope, and the water storage part forms a sealed state; when the water lifting test auxiliary equipment is in the bottom-touching state, the locking control drives the plug under the reaction force at the bottom of the hole, the plug separates from the conical slope, and the fluid medium inside the core tube and at the bottom of the hole forms a communication state.
[0010] Furthermore, the plug has a threaded hole inside, and the upper part of the connecting rod has an external threaded portion that mates with the threaded hole, and the plug is connected to the connecting rod; the locking control has a threaded through hole inside, and the lower part of the connecting rod has an external threaded portion that mates with the threaded through hole, and the locking control is connected to the connecting rod.
[0011] Furthermore, the threaded through hole is located at the center of the card control, and the length of the external thread at the lower end of the connecting rod is greater than the height of the card control.
[0012] Furthermore, the outer diameter of the water storage section is larger than the outer diameter of the water inlet section.
[0013] Furthermore, the outer wall of the water inlet is provided with annular protrusions.
[0014] The beneficial effects of this utility model are as follows:
[0015] This invention utilizes auxiliary equipment for water lifting experiments, which can reduce the amount of equipment carried during drilling work in the field. At the same time, the equipment is simple, easy to use and easy to carry, which significantly reduces the difficulty and cost of water lifting experiments and has a broad application prospect.
[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic cross-sectional view of the auxiliary equipment in the bottoming state during the water lifting test described in this application;
[0019] Figure 2 This is a schematic cross-sectional view of the auxiliary equipment in the water lifting test described in this application during the lifting state.
[0020] Figure 3 This is a cross-sectional schematic diagram of the opening and closing mechanism of the water lifting test described in this application.
[0021] The markings in the diagram are: 10, core tube; 11, water storage section; 12, conical slope; 13, water inlet section; 14, annular protrusion; 15, cavity; 20, opening and closing mechanism; 21, plug; 22, threaded hole; 23, connecting rod; 231, upper threaded part of connecting rod; 232, middle part of connecting rod; 233, lower threaded part of connecting rod; 24, threaded through hole; 25, locking device. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] like Figure 1As shown, this embodiment provides an auxiliary device for water lifting tests, including a core tube 10 and an opening / closing mechanism 20. The core tube 10 includes a water storage section 11 and a water inlet section 13 fixedly connected to each other. Both the water storage section 11 and the water inlet section 13 are hollow cylinders that can contain fluid media. The inner diameter of the water storage section 11 is larger than the inner diameter of the water inlet section 13, and a conical slope 12 is formed at the connection between the water storage section 11 and the water inlet section 13. The opening / closing mechanism 20 is disposed inside the core tube 10. The opening / closing mechanism 20 includes a connecting rod 23 and plugs 21 and locking devices 25 fixedly disposed at both ends of the connecting rod 23. The connecting rod 23 moves linearly along the axial direction of the water inlet section 13; the plugs 21 are spherical and are disposed inside the water storage section 11. After the plugs 21 contact the conical slope 12, the water storage section forms a sealed space. The card control 25 is located at the bottom of the water inlet 13, facing the bottom of the borehole; the card control 25 can control the position of the plug 21 to prevent it from deviating from the predetermined position due to external force, and at the same time provide a reaction force to push the plug 21 open when it touches the bottom.
[0025] Preferably, the cavity 15 at the bottom of the water inlet 13 is a conical cavity that is narrower at the top and wider at the bottom. The locking device 25 is a solid cylinder. The diameter of the lower opening of the cavity 15 is larger than the outer diameter of the locking device 25, which can accommodate the locking device 25. When the locking device 25 touches the bottom, a gap is formed between the locking device 25 and the side wall of the cavity 15.
[0026] Preferably, the diameter of the plug 21 is smaller than the inner diameter of the water storage section 11, and the diameter of the plug 21 is larger than the inner diameter of the water inlet section 13. The plug 21 will seal the water storage section 11 of the core tube 10, and the core tube 10 can be used as a water pump.
[0027] Preferably, the opening and closing mechanism 20 is disposed in the core tube 10; when the water lifting test auxiliary equipment is in the lifting state, the plug 21 moves toward the bottom of the hole under the drive of gravity, and the plug 21 contacts the conical slope 12, and the water storage part 11 forms a sealed state; when the water lifting test auxiliary equipment is in the bottom-touching state, the locking control 25 drives the plug 21 under the action of the bottom reaction force, the plug 21 separates from the conical slope 12, and the inside of the core tube 10 and the fluid medium at the bottom of the hole form a communication state, and the fluid medium flows from the bottom of the hole to the water storage part 11.
[0028] Preferably, the plug 21 has a threaded hole 22 inside, and the upper part of the connecting rod 23 has an external thread 231 that mates with the threaded hole 22. The plug 21 is connected to the connecting rod 23. The locking device 25 has a threaded through hole 24 inside, and the lower part of the connecting rod 23 has an external thread 233 that mates with the threaded through hole 24. The locking device 25 is connected to the connecting rod 23.
[0029] Preferably, the threaded through hole 24 is located at the center of the locking control 25, and the length of the external thread 233 at the lower end of the connecting rod is greater than the height of the locking control 25. The locking control 25 will only partially adjust the positional relationship between the control opening and closing mechanism 20 and the core tube 10 without disengaging.
[0030] Preferably, the outer diameter of the water storage section 11 is larger than the outer diameter of the water inlet section 13, and the core tube 10 has an integral structure that is thicker at the top and thinner at the bottom.
[0031] Preferably, the outer wall of the water inlet 13 is provided with annular protrusions 14, which can make the core tube 10 more firmly connected to the borehole wall when the equipment is in operation, and facilitate the water lifting test operation.
[0032] Furthermore, this application discloses the operating method of the aforementioned auxiliary equipment for water lifting tests:
[0033] After the plug 21 is connected and fixed to the connecting rod 23, it is placed into the core tube 10 with the plug 21 on top and the connecting rod 23 on the bottom. The plug 21 and the connecting rod 23 fall under the action of gravity. The plug 21 contacts the conical slope 12 inside the core tube 10, and the lower end of the connecting rod 23 passes through the core tube 10. The locking control 25 is connected and fixed to the connecting rod 23. The locking control 25 can locally adjust the positional relationship between the opening and closing mechanism 20 and the core tube 10. At the same time, the locking control 25 is located at the bottom of the borehole.
[0034] When the auxiliary equipment for the water lifting test touches the bottom, the locking control 25 provides a reaction force, the plug 21 separates from the conical slope 12 of the core tube 10, and the water storage section 11 and the water inlet section 13 of the core tube 10 are connected. A gap is formed between the locking control 25 and the side wall of the cavity 15, and the fluid medium flows into the interior of the core tube 10 from the bottom of the borehole through this gap. When the auxiliary equipment for the water lifting test is lifted, the locking control 25 separates from the bottom of the borehole, the opening and closing mechanism 20 moves downward under the action of gravity, and the plug 21 contacts the conical slope 12 of the core tube 10, sealing the fluid medium inside the core tube 10 in the water storage section 11. The locking control 25 is made of iron with a certain diameter. When there is a certain thickness of sediment at the bottom of the borehole, the locking control 25 can provide sufficient reaction force without entering or after only a small amount of sediment.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. An apparatus for assisting a water carrying test, characterized in that, include: The core tube (10) includes a water storage section (11) and a water inlet section (13) that are fixedly connected to each other. Both the water storage section (11) and the water inlet section (13) are hollow cylinders. The inner diameter of the water storage section (11) is larger than the inner diameter of the water inlet section (13). A conical slope (12) is formed at the connection between the water storage section (11) and the water inlet section (13). An opening and closing mechanism (20) is provided inside the core tube (10). The opening and closing mechanism (20) includes a connecting rod (23) and a plug (21) and a locking control (25) fixedly provided at both ends of the connecting rod (23). The plug (21) is a sphere and is provided inside the water storage part (11). The locking control (25) is provided at the bottom of the water inlet part (13). The connecting rod (23) moves linearly along the axis of the water inlet part (13), and the locking control (25) faces the bottom of the borehole.
2. An apparatus for assisting in a water lifting test according to claim 1, characterized in that: The bottom of the water inlet (13) is provided with a cavity (15) for accommodating the card control (25).
3. An apparatus for assisting in a water lifting test according to claim 2, characterized in that: The cavity (15) is a conical cavity that is narrow at the top and wide at the bottom, and the card control (25) is a cylinder. The diameter of the lower opening of the cavity (15) is larger than the outer diameter of the card control (25).
4. An apparatus as claimed in claim 3, wherein: When the card control (25) touches the bottom, a gap is formed between it and the side wall of the cavity (15).
5. An apparatus for assisting in a water lifting test as claimed in claim 1, characterized in that: The diameter of the plug (21) is smaller than the inner diameter of the water storage part (11), and the diameter of the plug (21) is larger than the inner diameter of the water inlet part (13).
6. The auxiliary equipment for a water lifting test according to claim 1, characterized in that: The opening and closing mechanism (20) is installed in the core tube (10); when the water lifting test auxiliary equipment is in the lifting state, the plug (21) moves towards the bottom of the hole under the drive of gravity, the plug (21) contacts the conical slope (12), and the water storage part (11) forms a sealed state; when the water lifting test auxiliary equipment is in the bottom-touching state, the locking control (25) drives the plug (21) under the action of the bottom reaction force, the plug (21) separates from the conical slope (12), and the inside of the core tube (10) is connected to the fluid medium at the bottom of the hole.
7. The auxiliary equipment for a water lifting test according to claim 1, characterized in that: The plug (21) has a threaded hole (22) inside, and the upper part of the connecting rod (23) has an external threaded part (231) that mates with the threaded hole (22). The plug (21) is connected to the connecting rod (23). The locking device (25) has a threaded through hole (24) inside, and the lower part of the connecting rod (23) has an external threaded part (233) that mates with the threaded through hole (24). The locking device (25) is connected to the connecting rod (23).
8. The auxiliary equipment for a water lifting test according to claim 7, characterized in that: The threaded through hole (24) is located at the center of the card control (25), and the length of the external threaded part (233) at the lower end of the connecting rod is greater than the height of the card control (25).
9. The auxiliary equipment for a water lifting test according to claim 1, characterized in that: The outer diameter of the water storage section (11) is larger than the outer diameter of the water inlet section (13).
10. The auxiliary equipment for a water lifting test according to claim 1, characterized in that: The outer wall of the water inlet (13) is provided with annular protrusions (14).