Concrete core sampling device

Abstract

The utility model provides a concrete core sampling device, comprising a mounting frame, a lifting mechanism arranged on the mounting frame, a mounting seat arranged on the lifting mechanism, a driving motor being arranged on the mounting seat, an output shaft of the driving motor being arranged downward in a vertical direction, the output shaft being connected with a rotating shaft, the rotating shaft passing through a limiting plate arranged on the mounting frame and being connected with a coring drill bit, the coring drill bit comprising a cylindrical drill bit with a cavity inside and a fixing plate arranged on the top of the cylindrical drill bit, a sleeve being tightly sleeved on the rotating shaft, a push plate being arranged in the cavity, a push rod being arranged on the push plate, the push rod passing through the fixing plate and being connected to the sleeve through a connecting rod; the concrete core sample can be automatically separated from the coring drill bit, and the concrete core sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete sampling, in particular to a concrete core sampling device. Background Art

[0002] Concrete has the characteristics of rich raw materials and good durability, and is widely used in the field of contemporary construction. After the concrete is poured, in order to detect the density, durability, strength and other properties of the concrete, the core drilling method is a method of concrete entity detection. The core sample is drilled and sampled from the concrete body. The core sample is processed by the test personnel and then tested to determine whether the concrete is dense and whether the strength and durability meet the design requirements. On-site coring generally uses a core sampling machine. After the coring drill bit reaches the bottom, the drilling is stopped and the coring drill bit is lifted up. The core sample is usually close to the inner wall of the coring drill bit. It is usually necessary to use auxiliary tools to remove the core sample from the coring drill bit. It is inconvenient to remove, resulting in low work efficiency. Utility Model Content

[0003] In view of the above problems in the prior art, the utility model provides a concrete core sampling device, which solves the problem in the prior art that the core sample usually needs to be taken out from the coring drill bit with the help of auxiliary tools, which is inconvenient to take out and leads to low work efficiency.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] A concrete core sampling device is provided, comprising a mounting frame, a lifting mechanism arranged on the mounting frame, and a mounting seat arranged on the lifting mechanism, wherein a driving motor is arranged on the mounting seat, and an output shaft of the driving motor is arranged downward in a vertical direction, and the output shaft is connected with a rotating shaft, and the rotating shaft passes through a limiting plate arranged on the mounting frame and is connected with a coring drill bit, and the coring drill bit comprises a cylindrical drill bit with a cavity inside and a fixing plate arranged on the top of the cylindrical drill bit, a sleeve is tightly sleeved on the rotating shaft, a push plate is arranged in the cavity, a push rod is arranged on the push plate, and the push rod passes through the fixing plate and is connected to the sleeve through a connecting rod.

[0006] In some embodiments, there are multiple push rods, and the multiple push rods are symmetrically arranged along the rotation axis.

[0007] In some embodiments, a guide rod is also included, one end of which is connected to the connecting rod, and the other end of the guide rod passes through the fixed plate and is connected to the push plate. A coil spring is sleeved on the guide rod, and the coil spring is located between the fixed plate and the connecting rod.

[0008] In some embodiments, when there is no external force acting on the coil spring, the push plate is in contact and compression with the bottom of the fixing plate.

[0009] In some embodiments, it further includes a base disposed at the bottom of the mounting frame, four sets of moving wheels are installed at the bottom of the base, and a through hole is disposed on the base, and the through hole corresponds to the coring drill bit.

[0010] In some embodiments, the lifting mechanism is a hydraulic rod.

[0011] The beneficial effects of the utility model are:

[0012] Start the lifting mechanism and the driving motor, and the lifting mechanism drives the coring drill bit to move vertically downward and contact with concrete, and the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the coring drill bit to rotate, and the coring drill bit is used to sample concrete core samples. After the concrete core sample is sampled, the driving motor is stopped, and the lifting mechanism is started to drive the coring drill bit to move vertically upward. When the coring drill bit moves to a certain position, the sleeve contacts and squeezes the limit plate, and the position of the sleeve is limited by the limit plate. The coring drill bit continues to move vertically upward under the action of the lifting mechanism. At this time, the position of the push rod connected to the sleeve by the connecting rod is limited, so the position of the push plate connected to the push rod is limited, and the push plate applies a force to the concrete core sample in the coring drill bit, and the concrete core sample is pushed out of the coring drill bit by the push plate; the concrete core sample can be automatically separated from the coring drill bit, and the efficiency of concrete core sampling is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application;

[0014] Among them, 1. mounting frame; 2. lifting mechanism; 3. mounting seat; 4. driving motor; 5. rotating shaft; 6. coring drill bit; 61. cylindrical drill bit; 62. fixing plate; 7. sleeve; 8. push plate; 9. push rod; 10. connecting rod; 11. guide rod; 12. spiral spring; 13. base; 14. moving wheel; 15. through hole. DETAILED DESCRIPTION

[0015] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0016] Embodiment 1

[0017] like Figure 1 As shown, it includes a mounting frame 1, a lifting mechanism 2 arranged on the mounting frame 1, and a mounting seat 3 arranged on the lifting mechanism 2. A driving motor 4 is arranged on the mounting seat 3. The output shaft of the driving motor 4 is arranged downward in the vertical direction. The output shaft is connected with a rotating shaft 5. The rotating shaft 5 passes through a limit plate arranged on the mounting frame 1 and is connected with a coring drill bit 6. The coring drill bit 6 includes a cylindrical drill bit 61 with a cavity inside and a fixed plate 62 arranged on the top of the cylindrical drill bit 61. A sleeve 7 is tightly sleeved on the rotating shaft 5. A push plate 8 is arranged in the cavity. A push rod 9 is arranged on the push plate 8. The push rod 9 passes through the fixed plate 62 and is connected to the sleeve 7 through a connecting rod 10.

[0018] In the embodiment of the present application, the lifting mechanism 2 is a hydraulic rod, and the lifting function is realized by the hydraulic rod. The lifting mechanism 2 is started, the motor 4 is driven, and the coring drill 6 is driven by the lifting mechanism 2 to move vertically downward to contact the concrete, and the rotating shaft 5 is driven by the driving motor 4 to rotate, and the rotating shaft 5 drives the coring drill 6 to rotate, and the concrete core sample is sampled by the coring drill 6. After the concrete core sample is sampled, the driving motor 4 is stopped, and the lifting mechanism 2 is started to drive the coring drill 6 to move vertically upward. When the coring drill 6 moves to a certain position, the sleeve 7 contacts and squeezes with the limit plate, and the position of the sleeve 7 is limited by the limit plate. The coring drill 6 continues to move vertically upward under the action of the lifting mechanism 2. At this time, the position of the push rod 9 connected to the sleeve 7 through the connecting rod 10 is limited, so the position of the push plate 8 connected to the push rod 9 is limited, and the push plate 8 applies a force to the concrete core sample in the coring drill 6, and the concrete core sample is pushed out of the coring drill 6 by the push plate 8. In summary, the concrete core sample and the coring drill bit 6 can be automatically separated, thereby improving the efficiency of concrete core sampling.

[0019] Embodiment 2

[0020] On the basis of the first embodiment, the number of the push rods 9 is multiple, and the multiple push rods 9 are axially symmetrically arranged along the rotating shaft 5 .

[0021] In the embodiment of the present application, there are multiple push rods 9, and the multiple push rods 9 are symmetrically arranged along the rotating axis 5. The multiple push rods 9 are connected to the push plate 8, so that the push plate 8 is subjected to uniform force when in contact with the concrete core sample, making it easier for the concrete core sample to be pushed out of the cylindrical drill bit 61 by the push plate 8.

[0022] Embodiment 3

[0023] On the basis of the first embodiment, Figure 1As shown, it also includes a guide rod 11, one end of which is connected to the connecting rod 10, and the other end of the guide rod 11 passes through the fixed plate 62 and is connected to the push plate 8. A coil spring 12 is sleeved on the guide rod 11, and the coil spring 12 is located between the fixed plate 62 and the connecting rod 10.

[0024] In the embodiment of the present application, when there is no contact and extrusion between the sleeve 7 and the limit plate, the position of the push plate 8 is limited to a certain extent by the cooperation of the guide rod 11 and the spring, so as to prevent the push plate 8 from moving downward in the cylindrical drill bit 61 due to the influence of gravity, and to avoid the collision between the push plate 8 and the concrete core sample during the rotation of the coring drill bit 6, thereby damaging the concrete core sample. When the sleeve 7 is in contact and extrusion with the limit plate, during the upward movement of the rotating shaft 5, the connecting rod 10 and the fixed plate 62 compress the spring, which will not affect the force applied by the push plate 8 to the concrete core sample.

[0025] In some embodiments, when there is no external force acting on the coil spring 12 , the push plate 8 is in contact and compression with the bottom of the fixing plate 62 .

[0026] In the embodiment of the present application, when there is no external force acting on the spring, the push plate 8 is in contact and squeezed with the bottom of the fixed plate 62, so that the push plate 8 is tightly attached to the bottom of the fixed plate 62, avoiding the push plate 8 from occupying too much space of the coring drill bit 6.

[0027] Embodiment 4

[0028] On the basis of the first embodiment, Figure 1 As shown, it also includes a base 13 arranged at the bottom of the mounting frame 1, and four sets of moving wheels 14 are installed at the bottom of the base 13. A through hole 15 is arranged on the base 13, and the through hole 15 corresponds to the coring drill bit 6.

[0029] In an embodiment of the present application, a base 13 is provided at the bottom of the mounting frame 1, and four sets of movable wheels 14 are installed at the bottom of the base 13, so as to adjust the position of the base 13 through the movable wheels 14, thereby adjusting the position of the device, and a through hole 15 is provided on the base 13, so as to facilitate the coring drill bit 6 to take concrete core samples through the through hole 15.

[0030] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A concrete core sampling device, characterized in that: It includes a mounting frame, a lifting mechanism arranged on the mounting frame, a mounting seat arranged on the lifting mechanism, a driving motor arranged on the mounting seat, an output shaft of the driving motor is arranged downward in a vertical direction, the output shaft is connected with a rotating shaft, the rotating shaft passes through a limiting plate arranged on the mounting frame and is connected with a coring drill bit, the coring drill bit includes a cylindrical drill bit with a cavity inside and a fixing plate arranged on the top of the cylindrical drill bit, a sleeve is tightly sleeved on the rotating shaft, a push plate is arranged in the cavity, a push rod is arranged on the push plate, the push rod passes through the fixing plate and is connected to the sleeve through a connecting rod.

2. A concrete core sampling device according to claim 1, characterized in that: There are multiple push rods, and the multiple push rods are symmetrically arranged along the rotation axis.

3. A concrete core sampling device according to claim 1, characterized in that: It also includes a guide rod, one end of which is connected to the connecting rod, and the other end of the guide rod passes through the fixed plate and is connected to the push plate. A coil spring is sleeved on the guide rod, and the coil spring is located between the fixed plate and the connecting rod.

4. A concrete core sampling device according to claim 3, characterized in that: When there is no external force acting on the spiral spring, the push plate is in contact and compression with the bottom of the fixing plate.

5. A concrete core sampling device according to claim 1, characterized in that: It also includes a base arranged at the bottom of the mounting frame, four groups of moving wheels are installed at the bottom of the base, and a through hole is arranged on the base, and the through hole corresponds to the coring drill bit.

6. A concrete core sampling device according to claim 1, characterized in that: The lifting mechanism is a hydraulic rod.

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