A sampling device for engineering quality detection

Abstract

The utility model relates to sampling device technical field, especially a sampling device for engineering quality detection, including electric drill main part, the one side of electric drill main part is provided with threaded hole, the inner wall threaded connection of threaded hole has screw plate, the bottom fixed connection of screw plate has water inlet pipe, the bottom of electric drill main part is provided with the water inlet hole same with threaded hole axle center. The utility model's advantage lies in: the sampling device for engineering quality detection releases the compression ring to the compression of locking plate by loosening the threaded sleeve, at this moment can directly slide out the drill cylinder from the rotating disc. The bolt and the clamping structure of rotating disc ensure that the drill cylinder remains stable during disassembly, and the cooperation of the sealing ring and the sealing groove makes the separation process smooth and unobstructed. This design avoids the need for traditional sampling devices to knock the outer wall of the drill cylinder with a hammer or other tools, effectively preventing pits or scratches from appearing on the surface of the drill cylinder, protecting the integrity of the sampling tool, and simplifying the process of removing the concrete column.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, and in particular to a sampling device for engineering quality testing. Background Technology

[0002] In the field of building construction quality monitoring, non-destructive testing (NDT) technology is a key means of assessing structural safety. Among these methods, core drilling is widely used for detecting indicators such as concrete strength and internal defects due to its intuitive and accurate characteristics. Sampling devices for engineering quality testing, especially drill-type tools, have become the core equipment for obtaining representative samples. This device penetrates deep into the building wall through a rotating cutting motion to extract cylindrical concrete core samples, providing raw data for subsequent laboratory analysis. The quality of the sampling directly affects the reliability of the test results.

[0003] However, existing drill barrel sampling devices reveal a significant drawback in practical operation: after sampling is completed, the sample is often tightly embedded inside the drill barrel. Due to limitations of traditional design, removing the sample usually requires using external tools to strike the outer wall of the drill barrel. This operation, while seemingly simple, actually harbors multiple disadvantages. The hard contact between the tool and the drill barrel during the striking process can easily cause pits or scratches on the surface of the drill barrel. This physical damage not only compromises the structural integrity of the drill barrel but may also create stress concentration points, reducing its service life. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a sampling device for engineering quality testing, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a sampling device for engineering quality testing, including an electric drill body. A threaded hole is formed on one side of the electric drill body. A threaded disc is threadedly connected to the inner wall of the threaded hole. A water inlet pipe is fixedly connected to the bottom of the threaded disc. A water inlet hole, coaxial with the threaded hole, is formed at the bottom of the electric drill body. The water inlet pipe passes through the threaded disc and communicates with the water inlet hole. An assembly ring is slidably connected to the inner wall of the threaded hole. The bottom surface of the assembly ring is in contact with the top surface of the threaded disc. A filter screen is fixedly connected inside the assembly ring, corresponding to the water inlet hole. The electric drill... The main body has a drive rod fixedly connected to its output end. A drain pipe connected to the water inlet is embedded inside the drive rod. An installation sleeve is fixedly installed on the outer surface of the drive rod by bolts. A rotating disk is fixedly connected to one end of the installation sleeve. A drill barrel is slidably connected to the side of the rotating disk away from the installation sleeve. A locking plate is fixedly connected to the outer surface of the drill barrel. Several locking plates are slidably connected to the rotating disk. A threaded sleeve is threadedly connected to the outer surface of the rotating disk. A pressure ring is fixedly connected to one end of the threaded sleeve. The pressure ring is slidably connected to the drill barrel. The side of the pressure ring near the threaded sleeve is in contact with the locking plate.

[0007] Preferably, in any of the above solutions, the inner wall of the threaded hole is fixedly connected with two symmetrically arranged locating pins, and the assembly ring is slidably connected to the locating pins.

[0008] Preferably, in any of the above embodiments, the outer surface of the mounting sleeve is fixedly connected with a plurality of circumferentially arrayed reinforcing ribs, and the bottom ends of the plurality of reinforcing ribs are all fixedly connected to the rotating disk.

[0009] Preferably, of any of the above embodiments, a control ring is fixedly connected to the outer surface of the threaded disc, a valve is provided on one side of the water inlet pipe, and the top surface of the control ring is in contact with the body of the electric drill.

[0010] Preferably, one side of each of the above-mentioned locking plates is fixedly connected with a pin, and several of the locking plates are engaged with the rotating disk by the pins.

[0011] Preferably, in any of the above embodiments, the rotating disk has a through hole in its axial center, and the output end of the drain pipe is located inside the through hole.

[0012] Preferably, in any of the above embodiments, a blocking ring is fixedly connected to the inner wall of the drill barrel, a sealing ring is fixedly connected to the side of the blocking ring near the rotating disk, a sealing groove is provided on the side of the rotating disk away from the mounting sleeve, and the sealing ring is slidably connected to the rotating disk through the sealing groove.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. The sampling device used for quality inspection in this project releases the pressure on the locking plate by loosening the threaded sleeve, allowing the drill barrel to slide directly off the rotating disk. The locking structure between the pin and the rotating disk ensures the stability of the drill barrel during disassembly, and the cooperation between the sealing ring and the sealing groove ensures smooth separation. This design avoids the need for hammers or other tools to strike the outer wall of the drill barrel, effectively preventing dents or scratches on the drill barrel surface. This protects the integrity of the sampling tool and simplifies the removal process of the concrete column.

[0014] 2. The device features a detachable filter screen design, allowing for quick assembly and disassembly via a sliding connection between the locating pin and the assembly ring. For cleaning, simply unscrew the threaded disc to remove the assembly ring along with the filter screen. Located at the front of the water inlet, the filter screen effectively intercepts sediment and other impurities in the cooling water, preventing them from entering the drain pipe and causing blockages. This modular filtration system ensures the cleanliness of the cooling water, facilitates daily maintenance, and extends the device's lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the assembly of this utility model; Figure 2 This is an exploded structural diagram of the assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the electric drill body of this utility model; Figure 4 This is a schematic diagram of the structure of the drill barrel of this utility model; Figure 5 This is a schematic diagram of the rotating disk of this utility model; Figure 6 This is a schematic diagram of the water inlet pipe of this utility model.

[0016] In the diagram: 1-Drill body, 2-Threaded hole, 3-Threaded disc, 4-Water inlet pipe, 5-Water inlet hole, 6-Assembly ring, 7-Filter screen, 8-Drive rod, 9-Drain pipe, 10-Installation sleeve, 11-Rotating disc, 12-Drill barrel, 13-Locking plate, 14-Threaded sleeve, 15-Pressure ring, 16-Positioning pin, 17-Reinforcing rib, 18-Control ring, 19-Valve, 20-Pin, 21-Through hole, 22-Blocking ring, 23-Sealing ring, 24-Sealing groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0018] like Figures 1 to 6As shown, a sampling device for engineering quality testing includes an electric drill body 1. A threaded hole 2 is provided on one side of the electric drill body 1. A threaded disc 3 is threadedly connected to the inner wall of the threaded hole 2. A water inlet pipe 4 is fixedly connected to the bottom of the threaded disc 3. A water inlet hole 5, with the same axis as the threaded hole 2, is provided at the bottom of the electric drill body 1. The water inlet pipe 4 passes through the threaded disc 3 and communicates with the water inlet hole 5. An assembly ring 6 is slidably connected to the inner wall of the threaded hole 2. The bottom surface of the assembly ring 6 is in contact with the top surface of the threaded disc 3. A filter screen 7 is fixedly connected inside the assembly ring 6, corresponding to the water inlet hole 5. A drive rod 8 is fixedly connected to the output end of the electric drill body 1. The internal embedded part is equipped with a drain pipe 9 that communicates with the water inlet 5. The outer surface of the drive rod 8 is fixedly mounted with an installation sleeve 10 by bolts. One end of the installation sleeve 10 is fixedly connected to a rotating disk 11. The side of the rotating disk 11 away from the installation sleeve 10 is slidably connected to a drill barrel 12. The outer surface of the drill barrel 12 is fixedly connected to a locking plate 13. Several locking plates 13 are slidably connected to the rotating disk 11. The outer surface of the rotating disk 11 is threadedly connected to a threaded sleeve 14. One end of the threaded sleeve 14 is fixedly connected to a pressure ring 15. The pressure ring 15 is slidably connected to the drill barrel 12. The side of the pressure ring 15 near the threaded sleeve 14 is in contact with the locking plate 13.

[0019] As an optional technical solution of this utility model, the inner wall of the threaded hole 2 is fixedly connected with two symmetrically arranged positioning pins 16, and the assembly ring 6 is slidably connected to the positioning pins 16. By setting the sliding connection structure between the positioning pins 16 and the assembly ring 6, the filter screen 7 can be accurately positioned and quickly disassembled and assembled, which is convenient for daily cleaning and maintenance, and can also ensure the accurate alignment of the filter screen 7 and the water inlet hole 5, thereby improving the filtration effect.

[0020] As an optional technical solution of this utility model, a number of circumferentially arrayed reinforcing ribs 17 are fixedly connected to the outer surface of the mounting sleeve 10. The bottom ends of the reinforcing ribs 17 are all fixedly connected to the rotating disk 11. The use of circumferentially arrayed reinforcing ribs 17 to connect the mounting sleeve 10 and the rotating disk 11 significantly enhances the mechanical strength of the connection part, effectively prevents the vibration generated during high-speed drilling from causing structural deformation or loosening, and improves the stability and durability of the equipment.

[0021] As an optional technical solution of this utility model, a control ring 18 is fixedly connected to the outer surface of the threaded disc 3, and a valve 19 is provided on one side of the water inlet pipe 4. The top surface of the control ring 18 is in contact with the electric drill body 1. The setting of the control ring 18 makes it easy for the operator to quickly tighten or loosen the threaded disc 3. With the help of the valve 19, the flow rate of cooling water can be precisely adjusted, so as to realize convenient control of the coolant supply during the drilling process and improve the convenience of operation.

[0022] As an optional technical solution of this utility model, each locking plate 13 is fixedly connected to one side with a pin 20, and several locking plates 13 are engaged with the rotating disk 11 through the pin 20. The engagement structure between the pin 20 and the rotating disk 11 enables the locking plate 13 to be automatically aligned and fixed during installation, which not only ensures the installation stability of the drill barrel 12, but also simplifies the disassembly and assembly steps, and can be completed without the aid of additional tools.

[0023] As an optional technical solution of this utility model, the axial part of the rotating disk 11 is provided with a through hole 21, and the output end of the drain pipe 9 is located inside the through hole 21. The design of the through hole 21 allows the drain pipe 9 to extend directly to the working area of ​​the drill barrel 12, ensuring that the cooling water is accurately delivered to the cutting part of the drill bit, improving the cooling efficiency, and at the same time avoiding water splashing that causes the working environment to be humid.

[0024] As an optional technical solution of this utility model, a blocking ring 22 is fixedly connected to the inner wall of the drill barrel 12, and a sealing ring 23 is fixedly connected to the side of the blocking ring 22 near the rotating disk 11. A sealing groove 24 is opened on the side of the rotating disk 11 away from the mounting sleeve 10. The sealing ring 23 is slidably connected to the rotating disk 11 through the sealing groove 24. The cooperative structure of the blocking ring 22 and the sealing ring 23 can not only prevent concrete samples from falling off during drilling, but also achieve a reliable seal between the drill barrel 12 and the rotating disk 11 through the sealing groove 24, preventing cooling water leakage and keeping the equipment clean.

[0025] A sampling device for engineering quality testing works on the following principle: 1) By loosening the threaded sleeve 14, the pressure ring 15 is released from the locking plate 13, and the drill barrel 12 can be slid directly off the rotating disk 11. The locking structure between the pin 20 and the rotating disk 11 ensures that the drill barrel 12 remains stable during disassembly.

[0026] 2) The cooperation between the sealing ring 23 and the sealing groove 24 ensures a smooth and unobstructed separation process. This design avoids the need for traditional sampling devices to use tools such as hammers to strike the outer wall of the drill barrel 12, effectively preventing pits or scratches from forming on the surface of the drill barrel 12.

[0027] 3) Quick assembly and disassembly are achieved through the sliding connection between the positioning pin 16 and the assembly ring 6. When cleaning is required, simply unscrew the threaded disc 3 to remove the assembly ring 6 along with the filter screen 7.

[0028] In summary, the sampling device for quality inspection of this project releases the clamping force of the pressure ring 15 on the locking plate 13 by loosening the threaded sleeve 14, allowing the drill cylinder 12 to slide directly off the rotating disk 11. The snap-fit ​​structure between the pin 20 and the rotating disk 11 ensures the stability of the drill cylinder 12 during disassembly, and the cooperation between the sealing ring 23 and the sealing groove 24 ensures smooth separation. This design avoids the need for traditional sampling devices to use tools such as hammers to strike the outer wall of the drill cylinder 12, effectively preventing dents or scratches on the surface of the drill cylinder 12. This protects the integrity of the sampling tool and simplifies the removal process of the concrete column. The detachable filter screen 7 is designed for quick assembly and disassembly through the sliding connection between the positioning pin 16 and the assembly ring 6. When cleaning is required, simply unscrew the threaded disk 3 to remove the assembly ring 6 along with the filter screen 7. The filter screen 7 is located at the front end of the water inlet hole 5 and can effectively intercept impurities such as mud and sand in the cooling water, preventing them from entering the drain pipe 9 and causing blockage. This modular filtration system ensures the cleanliness of the cooling water, facilitates daily maintenance, and extends the service life of the device.

Claims

1. A sampling device for engineering quality testing, characterized in that: The device includes a drill body (1), a threaded hole (2) on one side of the drill body (1), a threaded disc (3) threaded to the inner wall of the threaded hole (2), a water inlet pipe (4) fixedly connected to the bottom of the threaded disc (3), a water inlet hole (5) with the same axis as the threaded hole (2) at the bottom of the drill body (1), the water inlet pipe (4) passing through the threaded disc (3) and communicating with the water inlet hole (5), an assembly ring (6) slidably connected to the inner wall of the threaded hole (2), the bottom surface of the assembly ring (6) fitting against the top surface of the threaded disc (3), a filter screen (7) fixedly connected inside the assembly ring (6), the filter screen (7) corresponding to the water inlet hole (5), a drive rod (8) fixedly connected to the output end of the drill body (1), and the drive rod (8) being embedded inside. A drain pipe (9) connected to the water inlet (5) is installed. An installation sleeve (10) is fixedly installed on the outer surface of the drive rod (8) by bolts. A rotating disk (11) is fixedly connected to one end of the installation sleeve (10). A drill barrel (12) is slidably connected to the side of the rotating disk (11) away from the installation sleeve (10). A locking plate (13) is fixedly connected to the outer surface of the drill barrel (12). Several locking plates (13) are slidably connected to the rotating disk (11). A threaded sleeve (14) is threadedly connected to the outer surface of the rotating disk (11). A pressure ring (15) is fixedly connected to one end of the threaded sleeve (14). The pressure ring (15) is slidably connected to the drill barrel (12). The side of the pressure ring (15) close to the threaded sleeve (14) is in contact with the locking plate (13).

2. The sampling device for engineering quality testing according to claim 1, characterized in that: The inner wall of the threaded hole (2) is fixedly connected to two symmetrically arranged positioning pins (16), and the assembly ring (6) is slidably connected to the positioning pins (16).

3. A sampling device for engineering quality testing according to claim 2, characterized in that: The outer surface of the mounting sleeve (10) is fixedly connected with a number of circumferentially arrayed reinforcing ribs (17), and the bottom ends of the reinforcing ribs (17) are fixedly connected to the rotating disk (11).

4. A sampling device for engineering quality testing according to claim 3, characterized in that: A control ring (18) is fixedly connected to the outer surface of the threaded disc (3), and a valve (19) is provided on one side of the water inlet pipe (4). The top surface of the control ring (18) is in contact with the electric drill body (1).

5. A sampling device for engineering quality testing according to claim 4, characterized in that: Each of the locking plates (13) is fixedly connected to one side with a pin (20), and several of the locking plates (13) are engaged with the rotating disk (11) by the pins (20).

6. A sampling device for engineering quality testing according to claim 5, characterized in that: The rotating disk (11) has a through hole (21) through its axial part, and the output end of the drain pipe (9) is located inside the through hole (21).

7. A sampling device for engineering quality testing according to claim 6, characterized in that: A blocking ring (22) is fixedly connected to the inner wall of the drill barrel (12). A sealing ring (23) is fixedly connected to the side of the blocking ring (22) near the rotating disk (11). A sealing groove (24) is provided on the side of the rotating disk (11) away from the mounting sleeve (10). The sealing ring (23) is slidably connected to the rotating disk (11) through the sealing groove (24).

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