Sampling drill bit for constructional engineering quality inspection

Abstract

The utility model relates to a sampling drill bit for constructional engineering quality inspection, which belongs to the technical field of constructional engineering quality inspection and comprises a drill bit body, a sample ejection mechanism is arranged on the drill bit body and comprises a connecting plate fixedly mounted on the surface of the drill bit body, and a U-shaped connecting frame is fixedly mounted on the upper surface of the connecting plate. A fixing plate is fixedly installed on the inner side of the U-shaped connecting frame, a threaded hole is formed in the surface of the fixing plate, a threaded rod with one end extending into the drill bit body is in threaded connection with the interior of the threaded hole, and an ejection plate located in the drill bit body is rotationally installed at one end of the threaded rod. According to the sampling drill bit for constructional engineering quality inspection, by arranging a sample ejection mechanism composed of a fixed plate threaded hole, a threaded rod and an ejection plate, the threaded rod can be rotated to drive the ejection plate to move in the drill bit body to eject a sample under the condition that the drill bit is not disassembled, and the tedious step that a traditional sampling drill bit needs to be disassembled is avoided; and the sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering quality inspection technical field, concretely is a building engineering quality inspection is with sampling drill bit. BACKGROUND

[0002] In building engineering quality inspection, sampling drill bit is an important tool used to extract samples from concrete, soil or other building materials for quality detection and analysis.

[0003] Publication No. CN219736875U discloses a building engineering quality inspection sampling drill bit, relating to building engineering quality inspection technical field, concretely is a building engineering quality inspection sampling drill bit, including installation frame, both sides of installation frame are provided with bent edge, installation frame is screw threaded and is connected with adjusting screw rod, and the bottom of adjusting screw rod is movably connected with connecting cage, the bottom of connecting cage is fixedly connected with installation sleeve, and the inside of installation sleeve is fixedly installed with drive motor, speed reducer, the output shaft of drive motor is fixedly connected with the input shaft of speed reducer, and the output shaft of speed reducer is fixedly connected with connecting screw rod. The building engineering quality inspection sampling drill bit, through drive motor drives connecting screw rod, connecting drill bit, sampling drill bit rotation, can be drilled to sample the building body, after drilling, through adjusting disc drives ejector rod to move, need not to disassemble sampling drill bit, can push out the sample in sampling drill bit inside, and the operation is simple.

[0004] The above-mentioned patent improves the shortcomings of the existing sampling drill bit, which needs to be removed after sampling to take out the columnar sample in the drill bit, and the drill bit needs to be installed after the sample is taken out, and the present application provides another embodiment to solve the problems in the above-mentioned patent. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a building engineering quality inspection sampling drill bit, which has the advantages of convenient sample taking and convenient use, and solves the problems of the prior art, such as the need to remove the drill bit after sampling to take out the columnar sample in the drill bit, and the need to install the drill bit after the sample is taken out.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a building engineering quality inspection sampling drill bit, comprising a drill bit body, a sample ejecting mechanism is arranged on the drill bit body;

[0007] The sample ejection mechanism comprises a connecting plate fixedly installed on the surface of the drill bit body, a U-shaped connecting frame fixedly installed on the upper surface of the connecting plate, a fixed plate fixedly installed on the inner side of the U-shaped connecting frame, a threaded hole formed in the surface of the fixed plate, a threaded rod with one end extending into the interior of the drill bit body threadedly connected in the threaded hole, an ejection plate rotatably installed at one end of the threaded rod in the interior of the drill bit body, and a rotating handle fixedly installed on the top of the threaded rod.

[0008] Further, a circular hole is formed in the top surface of the drill bit body, the threaded rod is located in the circular hole, and the diameter of the circular hole is larger than the diameter of the threaded rod.

[0009] The above-mentioned further scheme has the beneficial effect that the threaded rod can be conveniently moved on the drill bit body.

[0010] Further, a plurality of grooves are formed in the inner side surface of the drill bit body, and a gas hole is formed in the surface of the ejection plate.

[0011] The above-mentioned further scheme has the beneficial effect that the grooves and the gas hole can balance the air pressure between the sample and the drill bit body, can prevent the sample from being tightly contacted with the drill bit body due to the air pressure difference and being unable to be taken out, and can improve the heat dissipation performance of the drill bit and prolong the service life of the drill bit.

[0012] Further, a plurality of mounting holes are formed in the upper surface of the U-shaped connecting frame.

[0013] The above-mentioned further scheme has the beneficial effect that the mounting holes facilitate the connection of the U-shaped connecting frame with the output end of the driving motor of the drill bit.

[0014] Further, a plurality of multistage damping telescopic rods are fixedly installed on the lower surface of the connecting plate, a dust cover is fixedly installed on the bottom of the multistage damping telescopic rods, and the drill bit body penetrates into the dust cover.

[0015] The above-mentioned further scheme has the beneficial effect that the dust cover facilitates the shielding of the drill bit body during sampling, and can prevent dust from spreading during sampling.

[0016] Further, a rotating ring is rotatably installed on the bottom of the dust cover, and a rubber ring is fixedly installed on the lower surface of the rotating ring.

[0017] The above-mentioned further scheme has the beneficial effect that the rotating ring and the rubber ring facilitate the contact of the dust cover with the sampling surface and facilitate the rotation of the dust cover with the drill bit body.

[0018] Further, the external shape and size of the ejection plate are adapted to the internal shape and size of the drill bit body, and the side surface of the ejection plate is in sliding contact with the inner side surface of the drill bit body.

[0019] The beneficial effect of adopting the further scheme is that the ejection plate can move inside the drill bit body conveniently.

[0020] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0021] 1. The sampling drill bit for building engineering quality inspection, by setting the sample ejection mechanism composed of the fixed plate threaded hole, threaded rod and ejection plate, the threaded rod can drive the ejection plate to move inside the drill bit body without disassembling the drill bit to eject the sample, avoiding the cumbersome steps of disassembling the traditional sampling drill bit, and improving the sampling efficiency.

[0022] 2. The sampling drill bit for building engineering quality inspection, by setting the groove and air hole, the air pressure between the sample and the drill bit body can be balanced, the sample and the drill bit body cannot be tightly contacted due to the air pressure difference to prevent the sample from being taken out, and the heat dissipation performance of the drill bit can be improved to prolong the service life.

[0023] 3. The sampling drill bit for building engineering quality inspection, by setting the dust cover that can move in and out, the drill bit can be shielded during sampling to prevent the dust generated during sampling from spreading to the air to pollute the air environment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a whole structure schematic view of the utility model;

[0025] Fig. 2 It is a drill bit body structure schematic view of the utility model;

[0026] Fig. 3 It is a U-shaped connecting frame structure schematic view of the utility model;

[0027] Fig. 4 It is an ejection plate structure schematic view of the utility model.

[0028] In the drawing: 1, drill bit body; 2, connecting plate; 3, U-shaped connecting frame; 4, fixed plate; 5, threaded hole; 6, threaded rod; 7, ejection plate; 8, rotating handle; 9, round hole; 10, groove; 11, air hole; 12, mounting hole; 13, multi-stage damping telescopic rod; 14, dust cover; 15, swivel ring; 16, rubber ring. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Referring to Figs. 1 to 4 The sample drill bit for construction engineering quality inspection in the embodiment comprises a drill bit body 1, a sample ejection mechanism is arranged on the drill bit body 1, the sample ejection mechanism comprises a connecting plate 2 fixedly installed on the surface of the drill bit body 1, a U-shaped connecting frame 3 is fixedly installed on the upper surface of the connecting plate 2, a plurality of mounting holes 12 are arranged on the upper surface of the U-shaped connecting frame 3, the mounting holes 12 are arranged to facilitate the connection of the U-shaped connecting frame 3 and the output end of the driving motor of the drill bit, a fixed plate 4 is fixedly installed on the inner side of the U-shaped connecting frame 3, a threaded hole 5 is arranged on the surface of the fixed plate 4, a threaded rod 6 extending into the inside of the drill bit body 1 is threadedly connected in the threaded hole 5, a circular hole 9 is arranged on the top surface of the drill bit body 1, the threaded rod 6 is located in the circular hole 9, the diameter of the circular hole 9 is greater than the diameter of the threaded rod 6, so that the threaded rod 6 can be moved and retracted on the drill bit body 1, an ejection plate 7 located in the inside of the drill bit body 1 is rotatably installed at one end of the threaded rod 6, the outer shape and size of the ejection plate 7 are adapted to the inner shape and size of the drill bit body 1, the side surface of the ejection plate 7 is in sliding contact with the inner side surface of the drill bit body 1, so that the ejection plate 7 can be moved in the inside of the drill bit body 1, a rotating handle 8 is fixedly installed on the top of the threaded rod 6, a plurality of grooves 10 are arranged on the inner side surface of the drill bit body 1, and air holes 11 are arranged on the surface of the ejection plate 7, the grooves 10 and the air holes 11 are arranged to balance the air pressure between the sample and the drill bit body 1, so that the sample and the drill bit body 1 cannot be tightly contacted and cannot be taken out due to the air pressure difference, and the heat dissipation performance of the drill bit is improved, and the service life is prolonged.

[0031] A plurality of multistage damping telescopic rods 13 are fixedly installed on the lower surface of the connecting plate 2, a dust cover 14 is fixedly installed at the bottom of the multistage damping telescopic rod 13, the drill bit body 1 penetrates into the dust cover 14, the dust cover 14 is arranged to shield the drill bit body 1 when the drill bit body 1 is sampling, so that the dust during sampling is prevented from spreading, a rotating ring 15 is rotatably installed at the bottom of the dust cover 14, a rubber ring 16 is fixedly installed on the lower surface of the rotating ring 15, the rotating ring 15 and the rubber ring 16 are arranged to facilitate the contact of the dust cover 14 with the sampling surface and facilitate the rotation of the dust cover 14 with the drill bit body 1.

[0032] The working principle of the above embodiment is as follows:

[0033] First, through the mounting hole 12 on the upper surface of the U-shaped connecting frame 3, the sampling drill bit is connected with the output end of the driving motor, ensuring that the drill bit can rotate normally, when the driving motor is started, the drill bit body 1 begins to rotate and drills into the material to be sampled, during the sampling process, the dust cover 14 rotates with the drill bit body 1, and is in close contact with the sampling surface through the bottom swivel ring 15 and the rubber ring 16, effectively preventing the dust generated during sampling from spreading outward, and the multi-stage damping telescopic rod 13 ensures that the dust cover 14 can automatically adjust the height with the deepening of the drill bit body 1, and always maintains the shielding effect of the drill bit, when the sampling is completed, the operator can operate the sample ejecting mechanism by rotating the handle 8, the rotation of the handle 8 drives the threaded rod 6 to rotate in the threaded hole 5, since one end of the threaded rod 6 extends into the drill bit body 1 and is rotationally connected with the ejecting plate 7, the rotation of the threaded rod will be converted into the linear motion of the ejecting plate, with the continuous rotation of the threaded rod 6, the ejecting plate 7 gradually ejects the sample in the drill bit body 1, during the ejecting process of the sample, the grooves 10 on the inner side surface of the drill bit body 1 and the air holes 11 on the surface of the ejecting plate 7 play the role of balancing air pressure and heat dissipation, these grooves 10 and air holes 11 can prevent the sample from being tightly contacted with the drill bit body 1 due to the air pressure difference and cannot be taken out, and at the same time, the heat dissipation performance of the drill bit is improved, prolonging its service life.

[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the stated elements.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling drill bit for quality inspection in construction engineering, comprising a drill bit body (1), characterized in that: The drill bit body (1) is provided with a sample ejection mechanism; The sample ejection mechanism includes a connecting plate (2) fixedly installed on the surface of the drill bit body (1). A U-shaped connecting frame (3) is fixedly installed on the upper surface of the connecting plate (2). A fixing plate (4) is fixedly installed on the inner side of the U-shaped connecting frame (3). A threaded hole (5) is opened on the surface of the fixing plate (4). A threaded rod (6) with one end extending into the drill bit body (1) is threadedly connected inside the threaded hole (5). An ejection plate (7) located inside the drill bit body (1) is rotatably installed at one end of the threaded rod (6). A rotating handle (8) is fixedly installed on the top of the threaded rod (6).

2. A sampling drill bit for quality inspection in construction engineering according to claim 1, characterized in that: The top surface of the drill bit body (1) is provided with a circular hole (9), and the threaded rod (6) is located inside the circular hole (9). The diameter of the circular hole (9) is larger than the diameter of the threaded rod (6).

3. A sampling drill bit for quality inspection in construction engineering according to claim 1, characterized in that: The drill bit body (1) has a number of grooves (10) on its inner side surface, and the ejector plate (7) has air holes (11) on its surface.

4. A sampling drill bit for quality inspection in construction engineering according to claim 1, characterized in that: The upper surface of the U-shaped connecting frame (3) has a number of mounting holes (12).

5. A sampling drill bit for quality inspection in construction engineering according to claim 1, characterized in that: The lower surface of the connecting plate (2) is fixedly installed with a number of multi-stage damping telescopic rods (13), and a dust cover (14) is fixedly installed at the bottom of the multi-stage damping telescopic rods (13). The drill bit body (1) penetrates into the dust cover (14).

6. A sampling drill bit for quality inspection in construction engineering according to claim 5, characterized in that: The dust cover (14) has a rotating ring (15) mounted on its bottom, and a rubber ring (16) is fixedly mounted on the lower surface of the rotating ring (15).

7. A sampling drill bit for quality inspection in construction engineering according to claim 5, characterized in that: The external shape and size of the ejector plate (7) are adapted to the internal shape and size of the drill bit body (1), and the side surface of the ejector plate (7) and the inner surface of the drill bit body (1) are in sliding contact.

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