Multi-tube impact coring device

Abstract

The utility model relates to the technical field of exploration, in particular to a multi-tube impact coring device, which can quickly, completely and orderly collect core samples, and comprises an impact joint arranged on the rear side or connected to an impactor; the outer pipe is connected to the impact connector through an outer pipe connector, the front portion of the impact connector is connected to the rear side internal threads of the outer pipe connector, and the rear portion of the outer pipe is connected to the front side internal threads of the outer pipe connector; an inner tube that is removably provided in the outer tube; the transparent core tube is arranged in the inner tube; the coring bit on the front side is connected to the front end of the outer pipe in a sleeving mode.

Description

Technical Field

[0001] This utility model relates to the field of exploration technology, and in particular to a multi-tube impact coring device. Background Technology

[0002] With the large-scale construction of national infrastructure projects and the introduction of initial route design surveys and advanced geological forecasting schemes, the amount of core sampling at construction sites is increasing. Existing multi-tube impact coring technology cannot guarantee the integrity of rock core samples, and the order of core samples during manual placement and transfer cannot be guaranteed, which is also time-consuming. Utility Model Content

[0003] The present invention provides a multi-tube impact coring device that can quickly, completely and orderly collect core samples.

[0004] According to an embodiment of the present invention, a multi-tube impact coring device is provided, comprising:

[0005] The rear side is equipped with an impact connector that is connected to the impactor;

[0006] An outer tube is connected to the impact joint via an outer tube connector. The front part of the impact joint is connected to the rear internal thread of the outer tube connector, and the rear part of the outer tube is connected to the front internal thread of the outer tube connector.

[0007] An inner tube, which is removably disposed within the outer tube;

[0008] A transparent core tube is disposed within the inner tube;

[0009] The core drill bit on the front side is fitted onto the front end of the outer tube.

[0010] Preferably, in any embodiment,

[0011] The diameter of the rear internal thread of the outer pipe joint is smaller than the diameter of the front internal thread.

[0012] Preferably, in any embodiment,

[0013] The inner tube includes a rear section inner tube and a front section inner tube that are connected to each other via an inner tube joint.

[0014] Preferably, in any embodiment,

[0015] The rear inner tube and the front inner tube are connected to each other by threads through the inner tube joint.

[0016] Preferably, in any embodiment,

[0017] The transparent core tube includes: a rear core tube aligned with the rear inner tube, and a front core tube aligned with the front inner tube.

[0018] Preferably, in any embodiment,

[0019] The rear core tube is positioned against the inner tube joint with its front end abutting against it.

[0020] Preferably, in any embodiment,

[0021] The front core tube is positioned against the inner tube joint with its rear end abutting against it.

[0022] Preferably, in any embodiment,

[0023] The core drill bit is connected to the external thread of the outer tube via its internal thread.

[0024] Preferably, the embodiments of this utility model may include the following features:

[0025] The multi-tube impact coring device provided by the embodiments of this utility model can quickly, completely and orderly collect core samples. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a multi-tube impact coring device according to an embodiment of the present invention. Detailed Implementation

[0028] The technical solutions of various 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 embodiments of this utility model, and not all embodiments. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] The present invention provides a multi-tube impact coring device that can quickly, completely and orderly collect core samples.

[0030] According to an embodiment of the present invention, a multi-tube impact coring device is provided, comprising:

[0031] The rear side is equipped with an impact connector that is connected to the impactor;

[0032] An outer tube is connected to the impact joint via an outer tube connector. The front part of the impact joint is connected to the rear internal thread of the outer tube connector, and the rear part of the outer tube is connected to the front internal thread of the outer tube connector.

[0033] An inner tube, which is removably disposed within the outer tube;

[0034] A transparent core tube is disposed within the inner tube;

[0035] The core drill bit on the front side is fitted onto the front end of the outer tube.

[0036] In this way, the outer tube is connected to the impact joint and then to the impactor via an outer tube connector. The inner tube is placed inside the outer tube, and the transparent core tube is placed inside the inner tube, thus forming a multi-tube structure. The transparent core tube is aligned with the direction of travel of the coring drill bit, allowing the core sample drilled by the drill bit to be collected and contained within it as the drill bit travels. The transparent core tube also facilitates observation of the surface features and integrity of the entire core sample encapsulated within, and allows for selection of specific areas for subsequent operations and laboratory analysis as needed. Furthermore, the inner tube, which surrounds the transparent core tube, protects it from damage during the coring process.

[0037] As the impactor operates, the coring operation begins. With the coring drill bit advancing, the core sample is collected and contained in a transparent core tube. The depth to which the coring drill bit advances should not exceed the length of the transparent core tube. After stopping the machine and withdrawing from the borehole, the outer tube joint can be removed, and the inner tube filled with the core sample (along with the transparent core tube within it) can be taken out. The transparent core tube is then pushed out of the inner tube and sealed at both ends to form a core sample encapsulation unit. Multiple core sample encapsulation units obtained from multiple coring operations can be arranged sequentially, and their parameters (such as borehole number, coring depth, etc.) can be marked with appropriate labels, thus achieving orderly collection of core samples.

[0038] The multi-tube impact coring device provided by the embodiments of this utility model can be widely used in advanced geological coring of new railways, preliminary geological exploration, and multi-tube coring in other fields. It can effectively reduce the damage to the integrity of the core sample during coring, reduce the coring time, and facilitate orderly coring and core sample storage.

[0039] Therefore, it can be seen that the multi-tube impact coring device provided by this utility model embodiment can quickly, completely and orderly collect core samples.

[0040] Preferably, in any embodiment, the diameter of the rear internal thread of the outer tube connector is smaller than the diameter of the front internal thread. Thus, the smaller diameter rear internal thread can be used to connect smaller impact connectors, while the larger diameter front internal thread can be used to connect larger outer tubes.

[0041] Preferably, in any embodiment, the inner tube comprises a rear section of the inner tube and a front section of the inner tube connected to each other via an inner tube connector. In practical applications, a single inner tube may be too long (e.g., up to 4 meters), which is not conducive to installation and disassembly. Therefore, the inner tube can be divided into two sections and connected to each other as a whole by an inner tube connector to facilitate subsequent disassembly and core extraction.

[0042] Preferably, in any embodiment, the rear inner tube and the front inner tube are connected to each other by threads through the inner tube joint.

[0043] Optionally, in any embodiment, the rear inner tube and the front inner tube are connected to each other via the internal thread of the inner tube joint.

[0044] Optionally, in any embodiment, the rear inner tube and the front inner tube are connected to each other via the external thread of the inner tube joint.

[0045] Optionally, in any embodiment, the transparent core tube includes a rear core tube and a front core tube. In practical applications, a single core tube may be too long (e.g., up to 4 meters), which is not conducive to installation and disassembly. Therefore, the transparent core tube can be divided into two sections to facilitate subsequent disassembly and core removal.

[0046] Preferably, in any embodiment, the transparent core tube includes: a rear core tube aligned with the rear inner tube, and a front core tube aligned with the front inner tube.

[0047] Optionally, in any embodiment, the rear core tube is positioned against the impact joint with its rear end abutting against it.

[0048] Preferably, in any embodiment, the rear core tube is positioned against the inner tube connector with its front end abutting against it.

[0049] Preferably, in any embodiment, the front core tube is positioned against the inner tube connector with its rear end abutting against it.

[0050] Optionally, in any embodiment, the front core tube is positioned against the core drill bit with its front end abutting against it.

[0051] Optionally, in any embodiment, the front core tube is positioned against the step of the coring drill bit with its front end abutting against it.

[0052] Preferably, in any embodiment, the core drill bit is connected to the external thread of the outer tube via the internal thread of the drill bit.

[0053] Optionally, the transparent core tube includes at least a portion of an elastic component. This helps to prevent damage caused by external impacts.

[0054] Figure 1This is a structural schematic diagram of a multi-tube impact coring device according to an embodiment of the present invention.

[0055] exist Figure 1 The illustrated embodiment shows a multi-tube impact coring device, comprising:

[0056] An impact connector 101 is provided on the rear side (the upper side in the figure) or connected to the impactor;

[0057] The outer tube 103 is connected to the impact joint 101 via the outer tube connector 102, and the front part of the impact joint 101 ( Figure 1 The lower part of the middle part is connected to the rear side of the outer pipe joint 102. Figure 1 The upper side of the outer tube 103 has an internal thread, and the rear part of the outer tube 103 ( Figure 1 The upper part of the middle part is connected to the front side of the outer pipe joint 102. Figure 1 (Lower side) Internal thread;

[0058] Inner tube (its in) Figure 1 The illustrated embodiment includes, for example, a rear inner tube 104 and a front inner tube 107 interconnected by an inner tube connector 106, which are removably disposed in the outer tube 103;

[0059] Transparent core tube (its in) Figure 1 The illustrated embodiment includes, for example, a rear core tube 105 and a front core tube 108, which are disposed in the inner tube;

[0060] The core drill bit 109 on the front side (lower side in the figure) is sleeved on the front end of the outer tube 103. Figure 1 (the lower end of the middle).

[0061] The multi-tube impact coring device provided by the embodiments of this utility model can quickly, completely and orderly collect core samples.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] In the description of multiple elements in this document, multiple parallel features connected by "and / or" refer to one or more (or one or more) of these parallel features. For example, "first element and / or second element" means one or more of the first element and the second element, that is, only the first element, or only the second element, or the first element and the second element (both exist simultaneously).

[0064] The various embodiments provided in this utility model can be combined with each other as needed. For example, features from any two, three or more embodiments can be combined to form new embodiments of this utility model, which is also within the protection scope of this utility model, unless otherwise stated or if they are technically contradictory and cannot be implemented.

[0065] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A multi-tube impact coring device, characterized in that, include: The rear side is equipped with an impact connector that is connected to the impactor; An outer tube is connected to the impact joint via an outer tube connector. The front part of the impact joint is connected to the rear internal thread of the outer tube connector, and the rear part of the outer tube is connected to the front internal thread of the outer tube connector. An inner tube, which is removably disposed within the outer tube; A transparent core tube is disposed within the inner tube; The core drill bit on the front side is fitted onto the front end of the outer tube.

2. The multi-tube impact coring device as described in claim 1, characterized in that, The diameter of the rear internal thread of the outer pipe joint is smaller than the diameter of the front internal thread.

3. The multi-tube impact coring device as described in claim 1, characterized in that, The inner tube includes a rear section inner tube and a front section inner tube that are connected to each other via an inner tube joint.

4. The multi-tube impact coring device as described in claim 3, characterized in that, The rear inner tube and the front inner tube are connected to each other by threads through the inner tube joint.

5. The multi-tube impact coring device as described in claim 3, characterized in that, The transparent core tube includes: a rear core tube aligned with the rear inner tube, and a front core tube aligned with the front inner tube.

6. The multi-tube impact coring device as described in claim 5, characterized in that, The rear core tube is positioned against the inner tube joint with its front end abutting against it.

7. The multi-tube impact coring device as described in claim 5, characterized in that, The front core tube is positioned against the inner tube joint with its rear end abutting against it.

8. The multi-tube impact coring device as described in claim 1, characterized in that, The core drill bit is connected to the external thread of the outer tube via its internal thread.

Images