Core sample demolding device for core drilling and sampling
By designing a drill core sample releaser, the structure of the handle, steel cage and push plate is used to solve the problem of incomplete ejection caused by the large contact surface of the soil and the core tube, and the complete ejection and test data of the soil are achieved. The accuracy of the project quality inspection ensures the accuracy of engineering quality inspection.
Patent Information
- Application Number
- CN202420813654.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the existing core drilling sampling technology, the contact surface between the soil and the core pipe is large, which makes it difficult for the soil to detach directly, which may lead to incomplete outflow of the soil, affecting the accuracy of the test data and engineering quality inspection.
A drill core sample releaser is designed, including a handle, a steel cage and a push plate. The steel cage is fixedly connected to the handle and a push plate. The push plate and the steel cage are evenly distributed to promote the soil in the core tube. And the core tube is mounted through the core tube support to ensure the complete outflow of the soil.
The mold releaser can completely push out the soil in the core tube, ensuring the accuracy of test data and the accuracy of engineering quality inspection. It has a simple structure and is easy to carry and use.
Smart Images
Figure CN222299208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coring tube core sample demoulding tools, in particular to a coring tube core sample demoulding device. Background Art
[0002] For construction projects, project quality is very important. Core sampling is a local micro-damage on-site detection method, which mainly involves drilling cylindrical concrete core samples from concrete structures or components, testing the strength properties of the sample parts, and calculating the overall compressive strength of the concrete structure.
[0003] The core drilling method is widely used in construction projects. The core drilling method mainly selects a part of soil samples from the construction project to detect the quality of the project on the basis of ensuring that the main body of the building is not damaged. The selected soil samples must ensure a certain strength and soil age or related conditions to ensure the accuracy of the soil sample data. After the core sample is drilled, the soil needs to be separated from the cylinder. However, since the soil and the cylinder fit tightly and no air enters, the friction and resistance will be relatively large. When sampling, it can only be pushed from the top to the bottom. At this time, a core sampling core sample demoulder that is one size smaller than the core tube is needed to push the soil so that the soil can be easily separated and remain intact.
[0004] The existing core sampling technology has the following problems: during the sampling process, due to the large contact area between the soil and the core sampling tube, the soil is difficult to directly separate from the core sampling tube, which may result in incomplete soil extraction, making the test data inaccurate and affecting the engineering quality inspection. Utility Model Content
[0005] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a core sample demoulding device for core sampling, so as to solve the problem that during the sampling process of the existing core sampling, the soil is difficult to directly separate from the core sampling tube due to the large contact area between the soil and the core sampling tube, which may result in incomplete soil ejection, thereby making the test data inaccurate and affecting the engineering quality inspection.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A core sample demoulding device for core drilling and sampling comprises: a handle; a steel cage, which is fixedly connected to the end of the handle; and a push plate, which is fixedly connected to the steel cage.
[0008] As a preferred embodiment, the handle is provided with a connecting thread for threaded connection with the extension rod.
[0009] As a preference, the steel cage comprises a plurality of steel bars, one ends of the plurality of steel bars are fixedly connected to the end of the handle, the other ends of the plurality of steel bars are fixedly connected to the push plate, and the plurality of steel bars are evenly distributed along the circumference of the push plate.
[0010] As a preferred embodiment, all steel bars include a curved section and a straight section, one end of the curved section is fixedly connected to the end of the handle, the other end of the curved section is fixedly connected to one end of the straight section, and the other end of the straight section is fixedly connected to the push plate.
[0011] As a preference, there are multiple push plates, which are spaced apart on the steel cage, wherein one of the multiple push plates is located at the end of the steel cage away from the handle.
[0012] As a preferred embodiment, the core sampling demoulding device further comprises a core tube support, and the core tube support is used to support the core tube.
[0013] As a preferred embodiment, the core tube support includes a base, a bracket, a ring and a support arm, the bracket is fixed on the base, the ring is mounted on the bracket, the ring is parallel to the base, and the support arm is arranged on the edge of the ring; wherein the ring is used to be sleeved on the outside of the core tube, and the support arm is tied to the core tube by a connecting rope.
[0014] In general, the utility model has the following advantages:
[0015] The core sample demoulding device of the utility model has a simple structure and can completely push out the soil in the core sampling tube, thereby ensuring the accuracy of test data and the accuracy of engineering quality detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A stereoscopic view of a core sample demoulding device for core drilling and sampling.
[0017] Figure 2 A three-dimensional diagram of the extension rod.
[0018] Figure 3 A three-dimensional view of a core tube support.
[0019] Among them, 1 is a handle, 1-1 is a connecting thread, 2 is a steel cage, 2-1 is a steel bar, 2-1-1 is a straight section, 2-1-2 is a curved section, 3 is a push plate, 4 is an extension rod, 4-1 is a connecting groove, 4-2 is an internal thread, 4-3 is an external thread, 5 is a core tube support, 5-1 is a base, 5-2 is a bracket, 5-3 is a ring, and 5-4 is a support arm. DETAILED DESCRIPTION
[0020] The present invention will be further described in detail below in conjunction with specific implementation methods.
[0021] like Figure 1-3As shown, a core sample demoulding device for core sampling provided in this embodiment includes: a handle 1; a steel cage 2, which is fixedly connected to the end of the handle 1; and a push plate 3, which is fixedly connected to the steel cage 2. The handle 1 can be formed by cutting steel bars at a construction site, the steel cage 2 can be formed by cutting steel bars at a construction site, and the push plate 3 can be formed by cutting steel plates or iron plates at a construction site. The size of the push plate 3 is consistent with the inner diameter of the core tube, or slightly smaller than the inner diameter of the core tube, and the outer diameter of the steel cage 2 is consistent with the inner diameter of the core tube, or slightly smaller than the inner diameter of the core tube. When in use, the core tube is first set up with the core tube support 5, and then the construction personnel hold the handle 1 end, insert the push plate 3 and the steel cage 2 into the core tube, and then push the handle 1 hard, so that the push plate 3 pushes the soil in the core tube. Since the size of the push plate 3 is consistent with the inner diameter of the core tube, or slightly smaller than the inner diameter of the core tube, the soil in the core tube can be completely pushed out, which is conducive to the subsequent detection of the sampled soil and ensures that the detected data is accurate. The core sample demoulding device of the present embodiment has a simple overall structure, is easy to carry, and is easy to use.
[0022] like Figure 1-2 As shown, in some embodiments, the handle 1 is provided with a connecting thread 1-1 for threaded connection with the extension rod 4. The connecting thread 1-1 is arranged at the end of the handle 1. Through the handle 1 arranged in this way, it is convenient to connect the extension rod 4, so as to avoid that when the length of the coring tube is greater than the length of the coring core demoulding device, the coring core demoulding device cannot completely push out the soil in the coring tube.
[0023] like Figure 2 As shown, in some embodiments, a connecting groove 4-1 is provided at one end of the extension rod 4, and an internal thread 4-2 is provided in the connecting groove 4-1. The internal thread 4-2 cooperates with the connecting thread 1-1 on the handle 1 to realize the connection and fixation of the extension rod 4 and the handle 1; the extension rod 4 is easy to assemble and it is also convenient to connect the extension rod 4 according to the core tubes of different lengths.
[0024] like Figure 2 As shown, in some embodiments, the end of the extension rod 4 can also be provided with an external thread 4-3, so that it can be connected to other extension rods 4 through threads, so that the handle 1 can be connected to multiple extension rods 4 according to different core tubes, and has strong versatility.
[0025] like Figure 1As shown, in some embodiments, the steel cage 2 includes a plurality of steel bars 2-1, one end of each of the plurality of steel bars 2-1 is fixedly connected to the end of the handle 1, and the other end of each of the plurality of steel bars 2-1 is fixedly connected to the push plate 3, and the plurality of steel bars 2-1 is evenly distributed along the circumference of the push plate 3. With the steel cage 2 arranged in this way, when the push plate 3 contacts the soil in the core tube, the push plate 3 is evenly stressed, and the handle 1 is also evenly stressed, and is not easily deformed, so that the soil in the core tube can be pushed out completely; it is avoided that the push plate 3 is easily deformed when encountering a core sample of a soft soil layer pushed by a single steel bar, and some rock and soil blocks are left in the core tube.
[0026] like Figure 1 As shown, in some embodiments, all the steel bars 2-1 include a curved section 2-1-2 and a straight section 2-1-1, one end of the curved section 2-1-2 is fixedly connected to the end of the handle 1, the other end of the curved section 2-1-2 is fixedly connected to one end of the straight section 2-1-1, and the other end of the straight section 2-1-1 is fixedly connected to the push plate 3. Through the steel bars arranged in this way, the force of the entire steel cage 2 can be axially transmitted to the handle 1, and it is also convenient to connect with the handle 1 and the push plate 3, and the specific connection method can be welding.
[0027] like Figure 1 As shown, in some embodiments, there are multiple push plates 3, and the multiple push plates 3 are spaced apart on the steel cage 2, wherein one of the multiple push plates 3 is located at the end of the steel cage 2 away from the handle 1. By providing multiple push plates 3, the push plates 3 located in the steel cage 2 can control the steel cage 2 to be less likely to deform when the force is too large, thereby improving the strength of the steel cage 2 and preventing the deformation of the steel cage 2 from rubbing against the inner wall of the core tube, which makes it difficult to push the soil in the core tube. The push plates 3 located at the ends of the steel cage 2 are mainly used to completely push out the soil in the core tube.
[0028] like Figure 1 As shown, in some embodiments, the push plate 3 is a circular structure. Considering that the core tube is a cylindrical structure, the push plate 3 is configured as a circular plate to facilitate completely pushing out the soil in the core tube.
[0029] like Figure 3 As shown, in some embodiments, the core sampling demoulding device further comprises a core tube support 5, and the core tube support 5 is used to support the core tube. During the demoulding process, since the core tube needs to be stable during the demoulding process, the core tube support 5 is provided to support the core tube, so as to facilitate the demoulding process (that is, the process of pushing out the soil in the core tube).
[0030] like Figure 3As shown, in some embodiments, the core tube support 5 includes a base 5-1, a bracket 5-2, a collar 5-3 and a support arm 5-4, the bracket 5-2 is fixed on the base 5-1, the collar 5-3 is erected on the bracket 5-2, the collar 5-3 is parallel to the base 5-1, and the support arm 5-4 is arranged at the edge of the collar 5-3; wherein the collar 5-3 is used to be sleeved on the outside of the core tube, and the support arm 5-4 is tied to the core tube by a connecting rope. By making such a setting, the core tube can be erected, and the core tube can be prevented from rotating by the connecting rope, so as to ensure the smooth demoulding process.
[0031] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
Claims
1. A core sample demoulding device for core drilling sampling, characterized in that: include: handle; A steel cage, the steel cage is fixedly connected to the end of the handle; Push plate, the push plate is fixedly connected to the steel cage.
2. A core sample demoulding device for core drilling sampling according to claim 1, characterized in that: The handle is provided with a connecting thread for being threadedly connected with the extension rod.
3. A core sample demoulding device for core drilling sampling according to claim 1, characterized in that: The steel cage comprises a plurality of steel bars, one ends of which are fixedly connected to the end of the handle, the other ends of which are fixedly connected to the push plate, and the plurality of steel bars are evenly distributed along the circumference of the push plate.
4. A core sample demoulding device for core drilling sampling according to claim 3, characterized in that: All the steel bars include a curved section and a straight section, one end of the curved section is fixedly connected to the end of the handle, the other end of the curved section is fixedly connected to one end of the straight section, and the other end of the straight section is fixedly connected to the push plate.
5. A core sample demoulding device for core drilling sampling according to claim 1, characterized in that: There are multiple push plates, which are distributed at intervals on the steel cage, wherein one of the multiple push plates is located at the end of the steel cage away from the handle.
6. A core sample demoulding device for core drilling sampling according to claim 1, characterized in that: It also includes a core pipe support, which is used to support the core pipe.
7. A core sample demoulding device for core drilling sampling according to claim 6, characterized in that: The core tube support includes a base, a bracket, a ring and a support arm. The bracket is fixed on the base, the ring is mounted on the bracket, the ring is parallel to the base, and the support arm is arranged on the edge of the ring. The ring is used to be sleeved on the outside of the core tube, and the support arm is tied to the core tube through a connecting rope.