A core taking device for hydraulic engineering quality detection

Abstract

The utility model discloses a water conservancy project quality detects with coring device, including actuating mechanism, coring barrel and sampling head, the coring barrel includes two coring assemblies along the division of median axis and constitutes, be equipped with the assembly groove on the actuating mechanism, the sampling head is away from the sampling one end and is provided with the connecting groove, two the coring assembly between along the division surface each other and form the coring barrel, and the both ends of the coring barrel formed are detachable and connect the assembly groove and connecting groove on, the assembly groove and connecting groove all are screwed with the bolt locking on the coring barrel of leaning on, the utility model discloses through the structure improvement of existing sampling barrel, divides into two coring assemblies along the division of median axis, and two coring assemblies are used again and are connected with the sampling head and the assembly groove and are pasted into the sampling barrel, in the use process, when the sampling barrel and the sampling head and the assembly groove separate, can be divided into two, at this moment, not only is convenient for the taking out of the core sample, but also is convenient for the cleaning of the inside of the coring barrel.

Description

Technical Field

[0001] This utility model relates to the technical field of accessories for quality testing of water conservancy projects, and in particular to a core sampling device for quality testing of water conservancy projects. Background Technology

[0002] In water conservancy projects, quality inspection of completed works is frequently required. This inspection necessitates the use of coring devices to collect core samples for testing, enabling direct and accurate assessment of the internal quality of the engineering structure and providing crucial information for project safety. Common coring devices typically consist of three parts: an actuator for installing and moving the coring cylinder and providing power during core sampling; a sampling head that performs cutting during drilling; and the coring cylinder itself as a temporary storage container for the collected core samples. Existing technologies, such as the coring devices for water conservancy project quality inspection disclosed in applications CN209327029U, CN202120745450.9, and CN202020387968.5, all use straight-cylinder structures for temporary storage of the core samples. However, this straight-cylinder structure has revealed the following problems in practical use: 1. It is inconvenient to remove the core sample from the core tube: Due to the small port of the core tube, a small flat tool, such as a flathead screwdriver, is needed to pry out part of the core sample during the sampling process until the pried part can be held by hand and pulled out. During the prying process, the edges and top of the core sample are easily broken or cracked, causing the core sample to be scrapped or even the core sample data to be distorted. 2. Inconvenient internal cleaning after core sample removal: When cleaning the inside of the core sample tube, it can only be cleaned from the port of the core sample tube. Due to the small area of ​​the port, it takes a lot of time to ensure the cleaning quality. Utility Model Content

[0003] This invention provides a gripping structure for a robotic arm to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A core sampling device for quality testing of water conservancy projects includes an actuator, a core sampling cylinder, and a sampling head. The core sampling cylinder includes two core sampling components formed by dividing along the central axis. The actuator is provided with an assembly groove, and the sampling head has a connecting groove at the end away from the sampling. The two core sampling components are fitted together along the dividing surface to form a core sampling cylinder. The two ends of the formed core sampling cylinder are detachably connected to the assembly groove and the connecting groove, respectively, and the assembly groove and the connecting groove are locked to the core sampling cylinder by bolts.

[0005] Preferably, the adjacent surfaces of the two core-taking components are fitted together by a limiting structure. The limiting structure includes a limiting groove on one of the core-taking components and a limiting block on the other core-taking component. Both the limiting groove and the limiting block are rectangular. When the two core-taking components are fitted together, the limiting block is inserted into the limiting groove.

[0006] Preferably, the core sampling assembly has sampling holes evenly distributed along its length.

[0007] Preferably, both the assembly groove and the connecting groove are threaded grooves, and both ends of the core tube are provided with threads that cooperate with the threaded grooves.

[0008] Preferably, the assembly slot and the connecting slot are both locked to the core tube by three uniformly laid bolts.

[0009] Compared with the prior art, the present invention has the following beneficial effects: This invention improves the structure of the existing sampling tube by dividing it into two core-taking components along the central axis. The two core-taking components are then bonded together with the sampling head and the assembly groove to form a sampling tube. During use, the sampling tube can be separated from the sampling head and the assembly groove, which not only facilitates the removal of the core sample but also makes it easier to clean the inside of the core-taking tube. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is an exploded view of this utility model; Figure 3 This is a schematic diagram of the assembly of the core-taking cylinder after it has been divided according to this utility model. Figure 4 This is a schematic diagram of the segmented surface of the core extraction component of this utility model.

[0011] The attached diagram is labeled as follows: 1. Core tube, 11. Core assembly, 12. Thread, 2. Sampling head, 21. Connecting groove, 3. Assembly groove, 4. Bolt, 5. Connecting groove, 6. Limiting block, 7. Sampling hole. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0013] Example 1 like Figure 1-4The illustrated coring device for quality testing of water conservancy projects includes an actuator, a coring cylinder 1, and a sampling head 2. The coring cylinder 1 includes two coring components 11 formed by dividing along the central axis. The actuator is provided with an assembly groove 3. The sampling head 2 has a connecting groove 21 at the end away from the sampling point. The two coring components 11 are fitted together along the dividing surface to form the coring cylinder 1. The two ends of the formed coring cylinder 1 are detachably connected to the assembly groove 3 and the connecting groove 21, respectively. The assembly groove 3 and the connecting groove 21 are locked to the coring cylinder 1 by bolts 4. The aforementioned actuator is applicable to the component that drives the core cylinder 1 and the sampling head 2 to perform core sampling. This component is equivalent to (but not limited to) the following in the prior art: Application No. CN202120745450.9, entitled "A Part for Driving the Core Cylinder to Perform Core Sampling in a Special Core Sampling Device for Quality Testing of Water Conservancy Projects", and Application No. CN202020387968.5, entitled "A Part for Driving the Outer Core Cylinder, Inner Core Cylinder and Drill Bit to Perform Core Sampling in a Special Core Sampling Device for Quality Testing of Water Conservancy Projects".

[0014] In practice, two core sampling assemblies 11 are joined together to form a core sampling cylinder 1. The core sampling cylinder 1 is then assembled with the actuator and the sampling head 2 to form a core sampling device for water conservancy engineering quality testing. Specifically, one end of the core sampling cylinder 1 is placed in the assembly groove 3 mounted on the actuator, and the other end is placed in the connecting groove 21 on the sampling head 2. Bolts 4 are used to lock the core sampling cylinder 1 to the assembly groove 3 and the sampling head 2. At this time, the two core sampling assemblies 11 are constrained by the assembly groove 3 and the connecting groove 21 and are joined together, unable to be separated. The actuator drives the core sampling cylinder 1 and the sampling head 2 to obtain core samples from the water conservancy project to be tested. The obtained core samples are temporarily stored in the core sampling cylinder 1. After sampling, the core sample tube 1 is removed from the assembly slot 3 and the sampling head 2 in sequence. At this time, the constraint force on the core sample tube 1 disappears, and the core sample tube 1 is divided into two core sampling components 11. On the one hand, the core sample is directly exposed and can be taken out directly. Compared with the traditional sampling tube, it is no longer necessary to pry it. During the entire core sample taking process, the edge and top of the core sample will not be pried or cracked, ensuring the integrity of the core sample and the accuracy of the core sample test data. On the other hand, after the core sample is taken out, the inner wall of the core sampling component 11 is directly exposed for cleaning of the inside of the core sample tube 1.

[0015] As a preferred embodiment, the adjacent surfaces of the two core sampling components 11 are fitted together by a limiting structure, preventing the two fitted core sampling components 11 from shifting in either the axial or radial direction. This prevents displacement of the two fitted core sampling components 11 during assembly of the core sampling cylinder 1 to the sampling head 2 or assembly slot 3, thus avoiding assembly failure of the core sampling cylinder 1. Specifically, the limiting structure includes a limiting groove 5 on one of the core sampling components 11 and a limiting block 6 on the other core sampling component 11. Both the limiting groove 5 and the limiting block 6 are rectangular. When the two core sampling components 11 are fitted together, the limiting block 6 is inserted into the limiting groove 5, preventing the two fitted core sampling components 11 from shifting in either the axial or radial direction.

[0016] As a preferred embodiment of the above, the core sampling assembly 11 is provided with sampling holes 7 evenly distributed along its length. The sampling holes 7 are used to vent air during the process of the core sample entering the core sampling cylinder 1. On the other hand, during the sampling process, the core sample can be quickly separated from the core sampling assembly 11 by pushing it through the sampling holes 7.

[0017] As a preferred embodiment of the above, both the assembly groove 3 and the connecting groove 21 are threaded grooves. Both ends of the core-taking cylinder 1 are provided with threads 12 that cooperate with the threaded grooves, so that after the core-taking cylinder 1 is assembled into the connecting groove 21 or the assembly groove 3, the two core-taking components 11 that are in contact with each other cannot be separated, thereby facilitating the subsequent assembly of the bolts 4.

[0018] As a preferred embodiment of the above, the assembly groove 3 and the connecting groove 21 are both locked to the core tube 1 by three uniformly flat bolts 4.

[0019] In summary, the core sampling device for quality testing of water conservancy projects disclosed in this utility model improves the structure of the existing sampling cylinder by dividing it into two core sampling components 11 along the central axis. The two core sampling components 11 fit together and are connected with the sampling head 2 and the assembly groove 3 to form the sampling cylinder 1. During use, when the sampling cylinder 1 is disassembled from the sampling head 2 and the assembly groove 3, it can be separated into two core sampling components 11. This not only makes it convenient to take the core sample out of the core sampling cylinder 1, but also facilitates the cleaning of the inside of the core sampling cylinder 1.

[0020] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A core sampling device for quality testing of hydraulic engineering projects, comprising an actuator, a core sampling cylinder (1), and a sampling head (2), characterized in that, The core sampling tube (1) includes two core sampling components (11) divided along the central axis. The actuator is provided with an assembly groove (3). The sampling head (2) has a connecting groove (21) at the end away from the sampling. The two core sampling components (11) are fitted together along the dividing surface to form the core sampling tube (1). The two ends of the formed core sampling tube (1) are detachably connected to the assembly groove (3) and the connecting groove (21), respectively. The assembly groove (3) and the connecting groove (21) are locked to the core sampling tube (1) by bolts (4).

2. The core sampling device for quality testing of water conservancy projects according to claim 1, characterized in that, The adjacent surfaces of the two core-taking components (11) are fitted together by a limiting structure. The limiting structure includes a limiting groove (5) opened on one of the core-taking components (11) and a limiting block (6) provided on the other core-taking component (11). Both the limiting groove (5) and the limiting block (6) are rectangular. When the two core-taking components (11) are fitted together, the limiting block (6) is inserted into the limiting groove (5).

3. The core sampling device for quality testing of water conservancy projects according to claim 2, characterized in that, The core sampling assembly (11) has sampling holes (7) evenly distributed along its length.

4. The core sampling device for quality testing of water conservancy projects according to claim 3, characterized in that, Both the assembly groove (3) and the connecting groove (21) are threaded grooves, and both ends of the core-taking cylinder (1) are provided with threads (12) that cooperate with the threaded grooves.

5. The core sampling device for quality testing of hydraulic engineering projects according to any one of claims 1-4, characterized in that, The assembly groove (3) and the connecting groove (21) are locked to the core tube (1) by three uniform and simple bolts (4).

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