Electric flux test piece coring device
By designing a support base and clamping components to fix the concrete block, the problem of substandard specimens during core sampling was solved, achieving stable cutting and accurate testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO10 ENGINEERING GROUP THIRD CONSTRUCTION CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
During the core sampling process, the concrete block was not fixed, resulting in substandard specimens and affecting the testing results.
A core-taking device for electrical flux specimens was designed, including a support base and a clamping assembly. The concrete block is fixed by a threaded rod and a push plate to prevent it from shaking during the cutting process. Stainless steel material is used to increase stability, and rollers are provided for easy movement.
It effectively fixes concrete blocks, ensures the integrity of cut specimens, adapts to concrete blocks of different sizes, and improves testing accuracy.
Smart Images
Figure CN224231311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering materials and testing technology, and more specifically, to a core sampling device for electrical flux specimens. Background Technology
[0002] Electrical flux specimens are standard specimens used to determine the chloride ion penetration resistance of concrete. The durability of concrete is typically assessed through electrical flux testing. In concrete electrical flux testing, monitoring personnel usually first extract a cylindrical specimen from the concrete block using a core drill. However, currently, when using a core drill to extract the concrete block, the block is placed on the ground, and then the core drill is moved downwards from above, with the core drill's core cylinder rotating and cutting the concrete block to extract the specimen. During this process, the concrete block is often placed directly on the ground without being secured, which can easily cause the concrete block to move while the core drill's core cylinder is rotating and cutting, resulting in substandard concrete block specimens. Utility Model Content
[0003] This invention provides a core sampling device for electrical flux specimens, which can overcome some or all the defects of the prior art.
[0004] According to the present invention, a core sampling device for electrical flux specimens includes: a device body, the device body including a support base, one end of the support base being recessed inward to form a slot for placing a concrete block; a clamping component for clamping and fixing the concrete block is provided in the slot, and a vertical rod is provided above the slot, perpendicular to the support base, and a core sampling machine is provided at the vertical rod, which moves along the length of the vertical rod and extends into the slot.
[0005] With this invention, when cutting a concrete block, the monitoring personnel first lift the mounting plate, causing it to rotate along the rotating joint to open the slot. Then, the monitoring personnel place the concrete block into the slot and lower the mounting plate to seal the slot, ensuring the concrete block is properly positioned. Next, the first and second threaded rods are rotated. During rotation, the first threaded rod engages with the first threaded hole on the first counterweight, causing it to push the first push plate against the concrete block. Similarly, during rotation, the second threaded rod engages with the second threaded hole on the second counterweight, pushing the second push plate against the concrete block. Finally, the monitoring personnel rotate the third threaded rod, which, during rotation, engages with the protrusion on... The third threaded hole engages with the thread, allowing the third threaded rod to push the third push plate against the concrete block. The monitoring personnel then use the first, second, and third threaded rods to push the first, second, and third push plates respectively, clamping the concrete block from four directions (front, back, left, and right) to secure it and prevent it from shaking during core cutting, which could damage the cylindrical specimen and affect subsequent testing. After securing the concrete block, the monitoring personnel start the core cutter, which moves downwards along the upright. The core cutter's lower core cylinder continuously cuts the concrete block. After cutting, the core cutter moves upwards, and finally, the monitoring personnel remove the specimen from the core cylinder.
[0006] Preferably, the support includes a rectangular housing with an internal mounting cavity and a cover plate on top of the housing for sealing the mounting cavity.
[0007] The clamping assembly includes one first clamping member and two second clamping members; the first clamping member includes a first counterweight block disposed in the mounting cavity, a first threaded hole passing through the first counterweight block, a first threaded rod passing through the first threaded hole in the mounting cavity, one end of the first threaded rod extending into the slot and the other end extending out of the mounting cavity; a first push plate is provided at the bottom wall of the slot, and the first push plate is rotatably connected to the end of the first threaded rod extending into the slot;
[0008] The second clamping component includes a second counterweight block disposed in the mounting cavity, a second threaded hole passing through the second counterweight block, a second threaded rod passing through the second threaded hole in the mounting cavity, one end of the second threaded rod extending into the slot and the other end extending out of the mounting cavity; a second push plate is disposed on the side wall of the slot, and the second push plate is rotatably connected to the end of the second threaded rod extending into the slot.
[0009] In this invention, the first counterweight, the second counterweight, the shell, and the cover plate are all made of stainless steel, thereby increasing the weight of the support base and preventing the support base from tilting due to the weight of the core extractor above, which would cause the core extractor to fall down; the shells are connected by bolts or welding.
[0010] The housing is provided with a second through hole and a third through hole through which the two ends of the first threaded rod pass, as well as a fourth through hole and a fifth through hole through which the two ends of the second threaded rod pass. The first threaded rod is guided by the second through hole and the second threaded rod by the fourth through hole and the fifth through hole, thereby making the movement of the first threaded rod and the second threaded rod more stable.
[0011] Preferably, the second push plate includes a first sub-plate rotatably connected to one end of the first threaded rod that extends into the slot. The first sub-plate has an opening along its length and one end of the first sub-plate has an opening communicating with the opening. The second sub-plate is disposed inside the opening. A spring is disposed inside the opening and is used to push the second sub-plate toward the first push plate.
[0012] With this invention, as the first pusher plate is pushed forward by the first threaded rod, it pushes the second sub-plate into the opening inside the first sub-plate. When the first pusher plate retracts, the spring pushes the second sub-plate towards the first pusher plate. When the concrete block is a regular shape, such as a cube or cuboid, the end face of the concrete block contacts the first pusher plate, the first sub-plate, and the second sub-plate. The first and second sub-plates can increase the contact area with the concrete block, preventing the concrete block from vibrating when the core extractor cuts it, which would cause excessive pressure at the contact point, break the edges of the concrete block, and affect the core extractor's cutting.
[0013] Preferably, the card slot sidewall is provided with a guide groove along the length of the card slot sidewall, and both ends of the first push plate are provided with guide blocks extending into the guide groove.
[0014] With this invention, when the first push plate is pushed by the first threaded hole, the guide blocks at both ends of the first push plate move along the guide groove on the side wall of the slot, which improves the stability of the first push plate during movement.
[0015] Preferably, a guide plate is provided at one end face of the second sub-plate along the length direction of the second sub-plate, and a guide hole is provided at one end face of the second sub-plate along the length direction of the second sub-plate for the guide plate to extend into.
[0016] With this invention, as the second sub-plate extends into the opening, the guide plate slides along the guide hole, thereby improving the stability of the second sub-plate during movement.
[0017] Preferably, the opening of the slot is provided with a baffle assembly for sealing the slot. The baffle assembly includes a mounting plate, one end of which is provided with a connecting plate, which is rotatably connected to the support base. The other end of the mounting plate is provided with an arc-shaped buckle, and the side wall of the support base is provided with a locking block that cooperates with the arc-shaped buckle. The end face of the mounting plate away from the slot is provided with a protrusion, and the protrusion is provided with a third threaded hole that passes through the protrusion and the mounting plate. A third threaded rod passes through the third threaded hole on the mounting plate. The end of the third threaded rod that extends into the slot is provided with a third push plate. The end of the third threaded rod away from the third push plate is provided with a first circular plate, and the first circular plate is provided with a first column.
[0018] With this utility model, the connecting plate and the support base are rotatably connected. The support base has a third limiting cavity on its side wall, and the connecting plate has a third T-shaped block that extends into the third limiting cavity and has a T-shaped cross-section. When the mounting plate blocks the opening of the slot, the arc-shaped buckle at one end of the mounting plate will be locked on the buckle on the side wall of the support base. The buckle has a T-shaped cross-section. The buckle is limited by the buckle to prevent the mounting plate from being squeezed and deformed due to the reaction when the third threaded rod pushes the third push plate to squeeze the concrete block.
[0019] Preferably, the end of the first threaded rod away from the first push plate is provided with a second circular plate, and a second column is provided at the second circular plate; the end of the second threaded rod away from the second push plate is provided with a third circular plate, and a third column is provided at the third circular plate.
[0020] With this invention, monitoring personnel can rotate the first, second, and third circular plates by pushing the first, second, and third columns, thereby rotating the first, second, and third threaded rods, which facilitates the rotation of the first, second, and third threaded rods.
[0021] Preferably, roller assemblies are provided at the four corners of the bottom of the support base. The roller assembly includes an L-shaped rotating plate, the upper end of which is hinged to the side wall of the support base, and a universal wheel connected to the rotating plate is provided below the rotating plate. The side wall of the support base is provided with a threaded blind hole, and the rotating plate is provided with a first through hole corresponding to the threaded blind hole.
[0022] With this invention, when moving the coring device, the monitoring personnel first use a pry bar to lift one side of the support base, then turn the rotating plate to rotate it along the hinge until it is against the side wall of the support base. Next, a screw is turned through the first through hole on the rotating plate and into the threaded blind hole on the support base to fix the rotating plate in place. The monitoring personnel then repeat the above steps by lifting the other side of the support base to fix the universal wheel under the support base, facilitating the movement of the coring device. When the coring device is needed, the screw is removed, the rotating plate is rotated, and the universal wheel is removed from the bottom of the support base. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the main body of the device in Example 1.
[0024] Figure 2 This is a schematic diagram of the support base in Example 1.
[0025] Figure 3 This is a schematic diagram of the card slot in Example 1.
[0026] Figure 4 This is an exploded view of the main body of the device in Example 1.
[0027] Figure 5 This is a schematic diagram of the mounting cavity in Example 1.
[0028] Figure 6 This is a schematic diagram of the clamping component in Example 1.
[0029] Figure 7 This is a schematic diagram of the first clamping member in Example 1.
[0030] Figure 8 This is a schematic diagram of the second clamping member in Example 1.
[0031] Figure 9 This is a schematic diagram of the roller assembly in Example 1.
[0032] Figure 10 This is a schematic diagram of the second pusher plate in Example 1.
[0033] Figure 11 This is a schematic diagram of the baffle assembly in Example 1. Detailed Implementation
[0034] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.
[0035] Example 1
[0036] like Figure 1-11 As shown, this embodiment provides a core sampling device for electrical flux specimens, which includes a device body 100. The device body 100 includes a support base 120. One side wall of the support base 120 is recessed inward to form a slot 140 for placing a concrete block. A clamping assembly 420 for clamping and fixing the concrete block is provided in the slot 140. A vertical rod 150 is provided above the support base 120. A core sampling machine 110 is provided at the vertical rod 150, which moves along the length of the vertical rod 150 and extends into the slot 140.
[0037] In this embodiment, when the monitoring personnel cut the concrete block, they first lift the mounting plate 1108, causing it to rotate along the rotating connection to open the slot 140. Then, the monitoring personnel place the concrete block into the slot 140 and lower the mounting plate 1108, thus sealing the slot 140 and ensuring the concrete block is within it. Next, they rotate the first threaded rod 610 and the second threaded rod 660. During rotation, the first threaded rod 610 engages with the first threaded hole 630 on the first counterweight 620, causing it to push the first push plate 640 to move and press against the concrete block. During rotation, the second threaded rod 660 engages with the second threaded hole 601 on the second counterweight 680, causing it to push the second push plate 650 against the concrete block. Finally, the monitoring personnel rotate the third threaded rod 1101, which engages with the third threaded hole 1105 on the protrusion 1103 during rotation. The threaded engagement causes the third threaded rod 1101 to push the third push plate 1104 against the concrete block. Monitoring personnel use the first threaded rod 610, the second threaded rod 660, and the third threaded rod 1101 to push the first push plate 640, the second push plate 650, and the third push plate 1104 respectively, causing them to clamp the concrete block from four directions (front, back, left, and right), thus fixing the concrete block and preventing it from being impacted by the core extractor 11. The cutting process is designed to prevent shaking, which could damage the cylindrical specimen and affect subsequent testing. It can also adapt to different concrete block sizes, allowing for the cutting of concrete blocks of varying sizes. After the concrete block is fixed, the monitoring personnel start the core extractor 110. The core extractor 110 moves downwards along the upright 150, and the core tube below the core extractor 110 continuously cuts the concrete block. After cutting, the core extractor 110 moves upwards, and finally, the monitoring personnel remove the specimen from the core tube.
[0038] In this embodiment, the support base 120 includes a rectangular housing 210, an installation cavity 510 inside the housing 210, and a cover plate 410 for sealing the installation cavity 510 on the top of the housing 210.
[0039] The clamping assembly 420 includes one first clamping member 690 and two second clamping members 670. The first clamping member 690 includes a first counterweight 620 disposed in the mounting cavity 510. The first counterweight 620 is provided with a first threaded hole 630 passing through the first counterweight 620. The mounting cavity 510 is provided with a first threaded rod 610 passing through the first threaded hole 630. One end of the first threaded rod 610 extends into the slot 140 and the other end extends out of the mounting cavity 510. The bottom wall of the slot 140 is provided with a first push plate 640, which is rotatably connected to the end of the first threaded rod 610 that extends into the slot 140.
[0040] The second clamping member 670 includes a second counterweight 680 disposed in the mounting cavity 510, a second threaded hole 601 passing through the second counterweight 680, a second threaded rod 660 passing through the second threaded hole 601 disposed in the mounting cavity 510, one end of the second threaded rod 660 extending into the slot 140 and the other end extending out of the mounting cavity 510; a second push plate 650 is disposed on the side wall of the slot 140, and the second push plate 650 is rotatably connected to the end of the second threaded rod 660 that extends into the slot 140.
[0041] In this embodiment, the first counterweight 620, the second counterweight 680, the housing 210, and the cover plate 410 are all made of stainless steel, thereby increasing the weight of the support base 120 and preventing the support base 120 from tilting due to the weight of the upper core extractor 110, which would cause the core extractor to fall down; the housing 210 and the cover plate 410 are connected by bolts or welding.
[0042] The housing 210 is provided with a second through hole 430 and a third through hole 460 through which the two ends of the first threaded rod 610 pass, and a fourth through hole 470 and a fifth through hole 440 through which the two ends of the second threaded rod 660 pass. The first threaded rod 610 is guided by the second through hole 430 and the third through hole 460, and the second threaded rod 660 is guided by the fourth through hole 470 and the fifth through hole 440, so that the first threaded rod 610 and the second threaded rod 660 move more stably.
[0043] The first threaded rod 610 is rotatably connected to the first push plate 640. The first threaded rod 610 is provided with a first limiting cavity at one end near the first push plate 640. The first push plate 640 is provided with a first T-shaped block with a T-shaped cross-section at one end face, which extends through the side wall of the first limiting cavity and into the first limiting cavity. The second threaded rod 660 is rotatably connected to the first sub-plate 830. The second threaded rod 660 is provided with a second limiting cavity at one end near the first sub-plate 830. The first sub-plate 830 is provided with a second T-shaped block with a T-shaped cross-section at one end face, which extends through the side wall of the second limiting cavity and into the second limiting cavity.
[0044] In this embodiment, the second push plate 650 includes a first sub-plate 830 rotatably connected to one end of the first threaded rod 610 that extends into the slot 140. The first sub-plate 830 has an opening 1004 arranged along the length direction of the first sub-plate 830. One end of the first sub-plate 830 has an opening communicating with the opening 1004. A second sub-plate 840 is provided inside the opening 1004. A spring 1003 is provided inside the opening 1004, and the spring 1003 is used to push the second sub-plate 840 toward the first push plate 640.
[0045] In this embodiment, as the first push plate 640 is pushed forward by the first threaded rod 610, the first push plate 640 pushes the second sub-plate 840 into the opening 1004 within the first sub-plate 830. When the first push plate 640 retracts, the spring 1003 pushes the second sub-plate 840 towards the first push plate 640. When the concrete block is a regular shape, such as a cube or cuboid, the end face of the concrete block contacts the first push plate 640, the first sub-plate 830, and the second sub-plate 840. The first sub-plate 830 and the second sub-plate 840 can increase the contact area with the concrete block, preventing the concrete block from vibrating when the core extractor 110 cuts the concrete block due to a small contact area. This would cause excessive pressure at the contact point, resulting in the edge of the concrete block breaking and affecting the cutting by the core extractor 110.
[0046] In this embodiment, a guide groove 480 is provided on the side wall of the slot 140 along the length of the side wall of the slot 140, and guide blocks 730 extending into the guide groove 480 are provided at both ends of the first push plate 640.
[0047] In this embodiment, when the first push plate 640 is pushed by the first threaded hole 630, the guide blocks 730 at both ends of the first push plate 640 move along the guide groove 480 on the side wall of the slot 140, which better improves the stability of the first push plate 640 when it moves.
[0048] In this embodiment, a guide plate 1001 is provided at one end face of the second sub-plate 840 along the length direction of the second sub-plate 840, and a guide hole 1005 is provided at one end face of the second sub-plate 840 along the length direction of the second sub-plate 840 and into which the guide plate 1001 extends.
[0049] In this embodiment, as the second sub-plate 840 extends into the opening 1004, the guide plate 1001 slides along the guide hole 1005, thereby improving the stability of the second sub-plate 840 during movement.
[0050] In this embodiment, a baffle assembly 130 for sealing the slot 140 is provided at the opening of the slot 140. The baffle assembly 130 includes a mounting plate 1108, a connecting plate 1107 at one end of the mounting plate 1108, and the connecting plate 1107 is rotatably connected to the support base 120. An arc-shaped buckle 1102 is provided at the other end of the mounting plate 1108, and a locking block 450 that cooperates with the arc-shaped buckle 1102 is provided on the side wall of the support base 120. The end face of the mounting plate 1108 away from the slot 140 is also provided. A protrusion 1103 is provided at the protrusion 1103, and a third threaded hole 1105 is provided at the protrusion 1103 and the mounting plate 1108. A third threaded rod 1101 is provided at the mounting plate 1108 through the third threaded hole 1105. A third push plate 1104 is provided at one end of the third threaded rod 1101 that extends into the slot 140. A first circular plate 1109 is provided at the other end of the third threaded rod 1101 away from the third push plate 1104. A first column 1110 is provided at the first circular plate 1109.
[0051] In this embodiment, the connecting plate 1107 is rotatably connected to the support base 120. The support base 120 has a third limiting cavity on its side wall, and the connecting plate 1107 has a third T-shaped block that extends into the third limiting cavity and has a T-shaped cross-section. When the mounting plate 1108 blocks the opening of the slot 140, the arc-shaped buckle 1102 at one end of the mounting plate 1108 will be locked onto the buckle 450 on the side wall of the support base 120. The buckle 450 has a T-shaped cross-section. The buckle 1102 is limited by the buckle 450 to prevent the mounting plate 1108 from being deformed due to the reaction when the third threaded rod 1101 pushes the third push plate 1104 to squeeze the concrete block.
[0052] In this embodiment, the first threaded rod 610 is provided with a second circular plate 710 at the end away from the first push plate 640, and a second column 720 is provided at the second circular plate 710; the second threaded rod 660 is provided with a third circular plate 810 at the end away from the second push plate 650, and a third column 820 is provided at the third circular plate 810.
[0053] In this embodiment, by pushing the first column 1110, the second column 720, and the third column 820, the monitoring personnel can rotate the first circular plate 1109, the second circular plate 710, and the third circular plate 810, thereby rotating the first threaded rod 610, the second threaded rod 660, and the third threaded rod 1101, which facilitates the monitoring personnel in rotating the first threaded rod 610, the second threaded rod 660, and the third threaded rod 1101.
[0054] In this embodiment, roller assemblies 220 are provided at the four corners of the bottom of the support base 120. The roller assembly 220 includes an L-shaped rotating plate 910. The upper end of the rotating plate 910 is hinged to the side wall of the support base 120. A universal wheel 920 connected to the rotating plate 910 is provided below the rotating plate 910. A threaded blind hole 520 is provided on the side wall of the support base 120, and a first through hole 930 corresponding to the threaded blind hole 520 is provided on the rotating plate 910.
[0055] In this embodiment, when moving the coring device, the monitoring personnel first use a pry bar to lift one side of the support base 120, then turn the rotating plate 910 to rotate it along the hinge until the rotating plate 910 is against the side wall of the support base 120. Then, the screw is turned through the first through hole 930 on the rotating plate 910 and into the threaded blind hole 520 on the support base 120 to fix the rotating plate 910. Afterwards, the monitoring personnel repeat the above steps by lifting the other side of the support base 120 to fix the universal wheel 920 under the support base 120, which facilitates the monitoring personnel to move the coring device. When the coring device is needed, the screw is removed, the rotating plate 910 is rotated, and the universal wheel 920 is removed from the bottom of the support base 120.
[0056] The second sub-plate 840 has a blind hole 1002 at one end for inserting the spring 1003. The blind hole 1002 is used to prevent the spring 1003 from being misaligned when it is squeezed.
[0057] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.
[0058] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A core sampling device for electrical flux specimens, characterized in that: The device includes a main body (100), which includes a support base (120). One side wall of the support base (120) is recessed inward to form a slot (140) for placing concrete blocks. A clamping assembly (420) for clamping and fixing concrete blocks is provided in the slot (140). A vertical rod (150) is provided above the slot (120) and is perpendicular to the support base (120). A core extractor (110) is provided at the vertical rod (150) and moves along the length of the vertical rod (150) and extends into the slot (140).
2. The device for core sampling of electrical flux specimens according to claim 1, characterized in that: The support base (120) includes a rectangular housing (210), an installation cavity (510) is provided inside the housing (210), and a cover plate (410) is provided on the top of the housing (210) for sealing the installation cavity (510). The clamping assembly (420) includes one first clamping member (690) and two second clamping members (670); the first clamping member (690) includes a first counterweight (620) disposed in the mounting cavity (510), a first threaded hole (630) passing through the first counterweight (620) is provided at the first counterweight (620), a first threaded rod (610) passing through the first threaded hole (630) is provided in the mounting cavity (510), one end of the first threaded rod (610) extends into the slot (140), and the other end extends out of the mounting cavity (510); a first push plate (640) is provided at the bottom wall of the slot (140), and the first push plate (640) is rotatably connected to the end of the first threaded rod (610) that extends into the slot (140); The second clamping member (670) includes a second counterweight (680) disposed in the mounting cavity (510), a second threaded hole (601) passing through the second counterweight (680) is provided at the second counterweight (680), a second threaded rod (660) passing through the second threaded hole (601) is provided in the mounting cavity (510), one end of the second threaded rod (660) extends into the slot (140) and the other end extends out of the mounting cavity (510); a second push plate (650) is provided on the side wall of the slot (140), and the second push plate (650) is rotatably connected to the end of the second threaded rod (660) that extends into the slot (140).
3. The device for core sampling of an electrical flux specimen according to claim 2, characterized in that: The second push plate (650) includes a first sub-plate (830) rotatably connected to one end of the first threaded rod (610) that extends into the slot (140). The first sub-plate (830) has an opening (1004) inside, which is arranged along the length of the first sub-plate (830). One end of the first sub-plate (830) has an opening that communicates with the opening (1004). The second sub-plate (840) is provided inside the opening (1004). A spring (1003) is provided inside the opening (1004), which is used to push the second sub-plate (840) toward the first push plate (640).
4. The device for core sampling of electrical flux specimens according to claim 3, characterized in that: The side wall of the card slot (140) is provided with a guide groove (480) arranged along the length of the side wall of the card slot (140), and both ends of the first push plate (640) are provided with guide blocks (730) extending into the guide groove (480).
5. The device for core sampling of an electrical flux specimen according to claim 4, characterized in that: The second sub-plate (840) has a guide plate (1001) at one end face, which is arranged along the length direction of the second sub-plate (840), and a guide hole (1005) at one end face, which is arranged along the length direction of the second sub-plate (840) and into which the guide plate (1001) extends.
6. The device for core sampling of an electrical flux specimen according to claim 5, characterized in that: A baffle assembly (130) for sealing the slot (140) is provided at the opening of the slot (140). The baffle assembly (130) includes a mounting plate (1108), a connecting plate (1107) at one end of the mounting plate (1108), and the connecting plate (1107) is rotatably connected to the support base (120). An arc-shaped buckle (1102) is provided at the other end of the mounting plate (1108), and a locking block (450) that cooperates with the arc-shaped buckle (1102) is provided on the side wall of the support base (120). A mounting plate (1108) is provided with a baffle assembly (130) at the end face away from the slot (140). The protrusion (1103) has a third threaded hole (1105) that passes through the protrusion (1103) and the mounting plate (1108). The mounting plate (1108) has a third threaded rod (1101) that passes through the third threaded hole (1105). The end of the third threaded rod (1101) that extends into the slot (140) has a third push plate (1104). The end of the third threaded rod (1101) that is away from the third push plate (1104) has a first circular plate (1109). The first circular plate (1109) has a first column (1110).
7. The device for core sampling of an electrical flux specimen according to claim 6, characterized in that: The first threaded rod (610) has a second circular plate (710) at one end away from the first push plate (640), and a second column (720) is provided at the second circular plate (710); the second threaded rod (660) has a third circular plate (810) at one end away from the second push plate (650), and a third column (820) is provided at the third circular plate (810).
8. The device for core sampling of an electrical flux specimen according to claim 2, characterized in that: Roller assemblies (220) are provided at the four corners of the bottom of the support base (120). The roller assembly (220) includes an L-shaped rotating plate (910). The upper end of the rotating plate (910) is hinged to the side wall of the support base (120). A universal wheel (920) connected to the rotating plate (910) is provided below the rotating plate (910). A threaded blind hole (520) is provided on the side wall of the support base (120). A first through hole (930) corresponding to the threaded blind hole (520) is provided on the rotating plate (910).