Concrete sampling device for hydraulic engineering

Abstract

The utility model relates to the technical field of hydraulic engineering, and discloses a concrete sampling device for hydraulic engineering, which comprises a support frame and a sampling mechanism arranged at the top of the inner wall of the support frame, and further comprises a sampling shell arranged at the bottom of the sampling mechanism, and a positioning shell is fixedly connected below the inner wall of the support frame; according to the utility model, the sampling mechanism controls the sampling shell to sample, the sampling shell is guided and positioned by adjusting the position of a positioning mechanism part before sampling, and meanwhile, the force applied to the sampling shell is dispersed, so that the sampling shell is more stable during sampling, and the risk of damage to the sampling shell is reduced; according to the concrete sampling device, limiting of a limiting rod by a limiting groove is relieved before sampling, under the action of a guide mechanism, a dustproof shell descends to be attached to the surface of concrete, dust and foreign matter are prevented from splashing all around, workers are prevented from being accidentally injured, and the problems that when an existing sampling device is used, the sampling effect is poor, and dust and foreign matter cannot be blocked are solved.

Description

Technical Field

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

[0002] Water conservancy projects are projects built to eliminate water disasters and develop and utilize water resources. In water conservancy projects, it is often necessary to conduct quality inspections on completed projects. There are many cement concrete structures and asphalt concrete pavements in the projects. During the core sampling operation of these structures, concrete sampling devices are needed to take samples for easy testing.

[0003] In the concrete sampling process, most of the existing concrete sampling devices use a motor to drive the sampling shell to rotate to drill holes in the concrete for sampling. Since the concrete is hard, the sampling shell is easily skewed during the sampling process, making it difficult to obtain a suitable sample, affecting the sampling effect of the concrete. In addition, long-term rotation sampling can easily damage the sampling shell, increasing costs.

[0004] In water conservancy projects, concrete needs to be sampled and then sent for inspection. However, when sampling concrete, repeated friction between the sampling shell and the concrete will generate a large amount of dust. The dust will also be scattered in the air due to the rotation of the sampling shell, causing air pollution. The current concrete sampling equipment cannot prevent dust and foreign matter from flying around, which can easily injure workers by mistake, thus bringing great inconvenience to the sampling work. Utility Model Content

[0005] The utility model aims to provide a concrete sampling device for water conservancy projects to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete sampling device for water conservancy engineering, comprising a support frame and a sampling mechanism arranged on the top of the inner wall thereof, and further comprising: a sampling shell installed at the bottom of the sampling mechanism, a positioning shell is fixedly connected to the lower part of the inner wall of the support frame, a mounting frame is fixedly connected to the surface of the positioning shell, a through hole is opened on the inner wall of the positioning shell, a positioning mechanism is arranged inside the positioning shell, and a dustproof shell is slidably connected to the lower part of the surface of the positioning shell;

[0007] Positioning grooves are opened on both sides of the inner wall of the dustproof shell, and a guiding mechanism is arranged inside the positioning groove. A limiting rod is hinged on one side of the top of the positioning shell, and a limiting groove is opened on one side of the surface of the dustproof shell. Moving wheels are rotatably connected to the left and right places on both sides of the bottom of the support frame.

[0008] Preferably, the positioning mechanism includes a threaded sleeve rotating inside the through hole and a bevel gear fixed to one side of its surface, a gear ring rotating above the surface of the positioning shell and a ball screw threaded inside the threaded sleeve, and a ball mounted on one end of the ball screw.

[0009] Preferably, the guide mechanism includes a guide rod fixed inside the positioning groove and a guide block sliding on the surface thereof, and also includes a telescopic spring fixed at the bottom of the guide block.

[0010] Preferably, the number of the mounting brackets is four, and they are distributed in the middle of the surface of the positioning shell in a circular array with the center of the top of the positioning shell at the center.

[0011] Preferably, the limiting rod is L-shaped, and the bottom of the limiting rod is movably connected to the inner wall of the limiting groove and used in conjunction therewith.

[0012] Preferably, a lever is fixedly connected to one side of the top of the gear ring, and the bottom of the gear ring is meshed with the surface of the bevel gear.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model controls the sampling shell to take samples through the sampling mechanism, guides and positions the sampling shell by adjusting the position of the positioning mechanism components before sampling, and disperses the force applied to the sampling shell, making the sampling shell more stable during sampling, reducing the risk of damage to the sampling shell, and improving the sampling effect of concrete. Before sampling, the limit of the limit rod by the limit groove is released, and under the action of the guide mechanism, the dustproof shell is lowered to fit with the concrete surface, thereby blocking dust and foreign matter from splashing around and avoiding accidental injuries to workers, thus solving the problem that the current sampling device has poor sampling effect and cannot block dust and foreign matter when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0017] Figure 3 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0018] Figure 4 It is a schematic diagram of a local three-dimensional cross-sectional structure in the utility model.

[0019] In the figure: 1. support frame; 2. sampling mechanism; 3. sampling shell; 4. positioning shell; 5. mounting frame; 6. through hole; 7. positioning mechanism; 71. threaded sleeve; 72. bevel gear; 73. gear ring; 74. ball screw; 75. ball; 8. dustproof shell; 9. positioning groove; 10. guide mechanism; 101. guide rod; 102. guide block; 103. telescopic spring; 11. limit rod; 12. limit groove; 13. moving wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4As shown, a concrete sampling device for water conservancy engineering comprises a support frame 1, the support frame 1 is used to install and support the device as a whole, the top of the inner wall of the support frame 1 is arranged on the sampling mechanism 2, the sampling mechanism 2 is used in conjunction with the bottom parts, the sampling mechanism 2 is used to drive the bottom parts to move up and down and rotate, a sampling shell 3 is installed at the bottom of the sampling mechanism 2, the sampling shell 3 is controlled by the sampling mechanism 2, the sampling shell 3 is used to sample concrete, and a positioning shell 4 is fixedly connected to the lower part of the inner wall of the support frame 1, the positioning shell 4 is a cylindrical shell setting, the positioning shell 4 is located below the sampling shell 3, and the positioning shell 4 is used to install parts and cooperate with them The surface of the positioning shell 4 is fixedly connected with a mounting frame 5. There are four mounting frames 5, which are distributed in a circular array in the middle of the surface of the positioning shell 4 with the center of the top of the positioning shell 4 in the middle. The mounting frame 5 is used to install parts and position the parts on one side. The inner wall of the positioning shell 4 is provided with through holes 6. The number of through holes 6 is consistent with that of the mounting frame 5, and the positions of the through holes 6 and the mounting frame 5 correspond. The through holes 6 are used to install parts. A positioning mechanism 7 is provided inside the positioning shell 4. The positioning mechanism 7 is used to guide and position the sampling shell 3 during sampling, improve the stability of the sampling shell 3 during sampling, and can adapt to sampling shells 3 of different diameters. The utility model has high usability. A dustproof shell 8 is slidably connected to the lower part of the surface of the positioning shell 4. The dustproof shell 8 is arranged in an annular shape. The dustproof shell 8 is used to isolate dust during sampling to prevent the dust generated when the sampling shell 3 rotates from flying around and affecting the health of the staff. Positioning grooves 9 are provided on both sides of the inner wall of the dustproof shell 8. The positioning grooves 9 are symmetrically arranged. The positioning grooves 9 are used to install parts and guide internal parts. A guiding mechanism 10 is arranged inside the positioning groove 9. The guiding mechanism 10 is used to guide the dustproof shell 8, which is convenient for operation and improves the convenience of use. A limiting rod 11 is hinged on one side of the top of the positioning shell 4. The limiting rod 11 It is an L-shaped setting, the bottom of the limit rod 11 is movably connected to the surface of the dustproof shell 8, a limit groove 12 is provided on one side of the surface of the dustproof shell 8, the position of the limit groove 12 corresponds to the position of the bottom of the limit rod 11, the limit rod 11 is movably connected to the inner wall of the limit groove 12, the limit groove 12 and the limit rod 11 are used together to limit the dustproof shell 8, so that the dustproof shell 8 is released from contact with the concrete surface, which is convenient for relocation of the device and improves the use effect. The left and right places on both sides of the bottom of the support frame 1 are rotatably connected with moving wheels 13, and the moving wheels 13 are used to move the device, which is convenient for the staff to move the device and reduce the labor intensity of the staff.

[0022] The positioning mechanism 7 includes a threaded sleeve 71 that rotates inside the through hole 6. The number of the threaded sleeves 71 is consistent with the through hole 6, and they are distributed in a ring array in the middle of the surface of the positioning shell 4 with the center of the top of the positioning shell 4 at the center. One side of the surface of the threaded sleeve 71 is fixedly connected to a bevel gear 72, and the bevel gear 72 is located on the outside of the positioning shell 4. The bevel gear 72 is rotatably connected to the inner wall of the mounting frame 5. A gear ring 73 is rotatably connected to the upper surface of the positioning shell 4. A lever is fixedly connected to one side of the top of the gear ring 73. The bottom of the gear ring 73 meshes with the surface of the bevel gear 72. The internal thread of the threaded sleeve 71 is connected to a ball screw 74. The ball screw 74 is connected to the inner thread of the ball screw 74. A ball 75 is installed at one end of 4, and the ball 75 is located inside the positioning shell 4. The surface of the ball 75 is movably connected with the sampling shell 3. When the sampling mechanism 2 drives the sampling shell 3 to descend to the inside of the positioning shell 4, the lever on the top of the gear ring 73 is toggled to control the gear ring 73 to rotate. The gear ring 73 is meshed with a plurality of bevel gears 72 to drive the threaded sleeve 71 to rotate synchronously, thereby controlling the ball screw 74 to drive the ball 75 to move, so that the ball 75 can contact the surface of the sampling shell 3, thereby guiding and positioning the sampling shell 3, facilitating the determination of the sampling position of the sampling shell 3, and coaxial positioning to avoid deviation and improve the sampling effect.

[0023] The guide mechanism 10 includes a guide rod 101 fixed inside the positioning groove 9, and a guide block 102 is slidably connected to the surface of the guide rod 101, and the guide block 102 is slidably connected to the inner wall of the positioning groove 9, and the guide block 102 is fixedly connected to the bottom of the surface of the positioning shell 4, and a telescopic spring 103 is fixedly connected to the bottom of the guide block 102, and the bottom of the telescopic spring 103 is fixedly connected to the bottom of the inner wall of the positioning groove 9, and the telescopic spring 103 is located on the outside of the guide rod 101 on one side. Under the action of the telescopic spring 103, when the limit groove 12 is released from the limit rod 11, the dustproof shell 8 moves downward by the elastic force of the telescopic spring 103 itself to contact the concrete surface, thereby isolating the sampling range of the sampling shell 3 to prevent dust from flying and polluting the environment.

[0024] It is worth noting that the sampling mechanism 2 proposed in this technical solution is a prior art, and its working principle and beneficial effects when used are not described in detail here.

[0025] Working principle: first push the device to the position where sampling is required, then rotate the moving wheel 13, retract the moving wheel 13 so that the bottom of the support frame 1 fits the concrete surface, thereby stabilizing the device, and then pick up the limiting rod 11 to disengage its bottom from the inside of the limiting groove 12, release the limit on the dustproof shell 8, and under the action of the telescopic spring 103, the dustproof shell 8 is lowered to fit the concrete surface, and the sampling position of the sampling shell 3 is isolated to prevent dust from flying and polluting the environment. Then, the sampling mechanism 2 controls the sampling shell 3 to move downward to the inside of the positioning shell 4, and then rotates the gear ring 73 to engage with the multiple bevel gears 72 for transmission and synchronously drive the threaded sleeve 71 to rotate, thereby controlling the ball screw 74 to drive the ball 75 to move to the inside of the positioning shell 4 to position and guide the sampling shell 3, and then the sampling mechanism 2 drives the sampling shell 3 to continue to descend and rotate to sample the concrete. After the sampling is completed, the dustproof shell 8 is returned to its position, and the moving wheel 13 is rotated to fit the ground and then the sample is taken out.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete sampling device for water conservancy engineering, comprising a support frame (1) and a sampling mechanism (2) arranged on the top of the inner wall thereof, characterized in that: Also includes: A sampling shell (3) is installed at the bottom of the sampling mechanism (2), a positioning shell (4) is fixedly connected to the lower part of the inner wall of the support frame (1), a mounting frame (5) is fixedly connected to the surface of the positioning shell (4), a through hole (6) is opened on the inner wall of the positioning shell (4), a positioning mechanism (7) is arranged inside the positioning shell (4), and a dustproof shell (8) is slidably connected to the lower part of the surface of the positioning shell (4); Positioning grooves (9) are provided on both sides of the inner wall of the dustproof shell (8), and a guide mechanism (10) is arranged inside the positioning groove (9). A limiting rod (11) is hingedly connected to one side of the top of the positioning shell (4), and a limiting groove (12) is provided on one side of the surface of the dustproof shell (8). Both left and right positions on both sides of the bottom of the support frame (1) are rotatably connected to moving wheels (13).

2. A concrete sampling device for water conservancy engineering according to claim 1, characterized in that: The positioning mechanism (7) comprises a threaded sleeve (71) rotating inside the through hole (6) and a bevel gear (72) fixed to one side of the surface thereof, a gear ring (73) rotating above the surface of the positioning shell (4) and a ball screw (74) threaded inside the threaded sleeve (71), and a ball (75) mounted on one end of the ball screw (74).

3. A concrete sampling device for water conservancy engineering according to claim 1, characterized in that: The guide mechanism (10) comprises a guide rod (101) fixed inside the positioning groove (9) and a guide block (102) sliding on the surface thereof, and also comprises a telescopic spring (103) fixed at the bottom of the guide block (102).

4. A concrete sampling device for water conservancy engineering according to claim 1, characterized in that: The number of the mounting frames (5) is four, and they are distributed in a circular array in the middle of the surface of the positioning shell (4) with the center of the top of the positioning shell (4) as the center.

5. A concrete sampling device for water conservancy engineering according to claim 1, characterized in that: The limiting rod (11) is L-shaped, and the bottom of the limiting rod (11) is movably connected to the inner wall of the limiting groove (12) and used in conjunction therewith.

6. A concrete sampling device for water conservancy engineering according to claim 2, characterized in that: A lever is fixedly connected to one side of the top of the gear ring (73), and the bottom of the gear ring (73) is meshed with the surface of the bevel gear (72).

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