A sampler for concrete testing

Abstract

This utility model relates to the field of concrete testing technology, specifically a sampler for concrete testing, including a handle and a drill barrel. A fixing plate is located at the top of the handle, and a motor is fixedly inserted into the middle of the fixing plate. A fixing plate is also located at the output end of the motor. A frame is located at the front end of the fixing plate, and a sliding assembly is located within the inner cavity of the frame. Two sliding plates are located at the front end of the sliding assembly, and a fixing rod is located on each side of the two sliding plates that are close to each other. A fixing block is located at the rear end of the drill barrel, and fixing holes are formed on both sides of the outer wall of the fixing block. The outer wall of the fixing rod fits into the inner cavity of the fixing hole. This concrete sampler solves the problem of limited flexibility in use of existing concrete samplers, which cannot change the drill bit for different sampling situations.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically a sampler for concrete testing. Background Technology

[0002] Concrete testing is a comprehensive evaluation process that uses systematic experiments, tests, and analyses to assess the performance, quality, durability, and structural safety of concrete materials. Its aim is to ensure that concrete meets design requirements, standards, and engineering safety needs during construction, use, and long-term service. It is a core component of building engineering quality control, spanning the entire lifecycle of concrete production, pouring, curing, and service.

[0003] However, existing concrete samplers cannot change the drill bit for different sampling situations in actual use, which limits their flexibility. To address this problem, a sampler for concrete testing is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a sampler for concrete testing to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A sampler for concrete testing includes a handle and a drill barrel. A bracket is provided at the top of the handle, a motor is fixedly inserted into the middle of the bracket, a fixing plate is provided at the output end of the motor, a frame is provided at the front end of the fixing plate, a sliding assembly is provided in the inner cavity of the frame, two sliding plates are provided at the front end of the sliding assembly, and a fixing rod is provided on the side of the two sliding plates that are close to each other. A fixing block is provided at the rear end of the drill barrel, and fixing holes are provided on both sides of the outer wall of the fixing block. The outer wall of the fixing rod is adapted to fit the inner cavity of the fixing hole.

[0005] Preferably, the front end of the drill barrel is provided with multiple blades.

[0006] Preferably, the sliding assembly includes a lead screw, a knob, sliders, and a limiting assembly. One end of the lead screw is rotatably connected to the left side of the inner cavity of the frame via a bearing, and the other end of the lead screw extends to the right end of the frame and is fixedly connected to the knob. The two sliders are respectively screwed to the left and right sides of the outer wall of the lead screw and are respectively fixedly connected to the two slide plates. The limiting assembly is located at the front end of the fixed plate and is fixedly connected to the two sliders.

[0007] Preferably, the threads on the left and right sides of the outer wall of the lead screw are arranged opposite to each other.

[0008] Preferably, the limiting component includes a limiting groove and limiting blocks. The limiting groove is opened at the front end of the fixed plate. The two limiting blocks are slidably embedded in the inner cavity of the limiting groove and are respectively fixedly connected to the rear ends of the two sliders. The inner cavity of the limiting groove and the outer wall of the limiting block are adapted to each other and are both in the shape of a "T".

[0009] Preferably, a push plate is slidably inserted into the inner cavity of the drill barrel, and connecting grooves are provided on both sides of the inner wall of the drill barrel. Connecting blocks are slidably embedded in the inner cavities of the two connecting grooves. The two connecting blocks are fixedly connected to the outer walls of the push plate at one end and close to each other. A spring is fixedly connected to the rear side of the inner cavity of the drill barrel, and the other end of the spring is fixedly connected to the push plate.

[0010] Preferably, the inner cavity of the connecting groove and the outer wall of the connecting block are adapted to each other and are both dovetail-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. By placing the fixing block between the two sliding plates and aligning the fixing holes with the fixing rods, rotating the knob causes the screw to rotate, which in turn generates a relative thread rotation force on the opposing threads on the left and right sides of the screw's outer wall. Under the limiting action of the limiting groove and the limiting block, the two sliding blocks slide simultaneously toward the middle of the screw, causing the two sliding plates to drive the two fixing rods to slide simultaneously toward the front center of the frame. The two fixing rods are then inserted into the inner cavities of the two fixing holes. Under the combined action of the fixing rods and the fixing holes, the fixing block can be installed, and the drill barrel can be fixed. This allows for easy replacement of the drill barrel according to the actual situation, solving the problem that existing concrete samplers cannot replace the drill bit for different sampling situations, resulting in limited flexibility during use.

[0013] 2. Start the motor to rotate the fixed plate, frame, and drill barrel, allowing the drill barrel to drill into the concrete for sampling. After the concrete sample enters the inner cavity of the drill barrel, the push plate slides in a straight line towards the rear of the inner cavity of the drill barrel under the limiting action of the connecting block and connecting groove, squeezing the spring and causing the spring to generate corresponding elastic force. After the drill barrel is separated from the concrete, the push plate can be reset under the limiting action of the connecting groove and connecting block under the action of the spring, thus pushing the concrete sample out of the inner cavity of the drill barrel. This facilitates the removal of the concrete sample and prevents the sample from getting stuck in the inner cavity of the drill barrel. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front sectional view of the drill barrel of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged view of point A;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0018] In the diagram: 1. Handle; 2. Bracket; 3. Motor; 4. Fixing plate; 5. Frame; 6. Drill barrel; 7. Blade; 8. Push plate; 9. Spring; 10. Connecting groove; 11. Connecting block; 12. Fixing block; 13. Fixing hole; 14. Slide plate; 15. Fixing rod; 16. Lead screw; 17. Knob; 18. Slider; 19. Limiting groove; 20. Limiting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a sampler for concrete testing, including a handle 1 and a drill barrel 6. A bracket 2 is provided at the top of the handle 1, and a motor 3 is fixedly connected to the middle of the bracket 2. A fixing plate 4 is provided at the output end of the motor 3. A frame 5 is provided at the front end of the fixing plate 4. A sliding assembly is provided inside the frame 5. Two sliding plates 14 are provided at the front end of the sliding assembly, and a fixing rod 15 is provided on each side of the two sliding plates 14 that are close to each other. A fixing block 12 is provided at the rear end of the drill barrel 6. Fixing holes 13 are provided on both sides of the outer wall of the fixing block 12. The outer wall of the fixing rod 15 is adapted to fit the inner cavity of the fixing hole 13. The sliding assembly is used to achieve this. The two sliding plates 14 drive the two fixed rods 15 to slide simultaneously toward the center of the front end of the frame 5, so that the two fixed rods 15 are inserted into the inner cavity of the two fixed holes 13 respectively. Under the joint action of the fixed rods 15 and the fixed holes 13, the fixed block 12 can be installed, and the drill cylinder 6 can be fixed. This allows the drill cylinder 6 to be easily replaced according to the actual situation, solving the problem that the existing concrete sampler cannot replace the drill bit for different sampling situations and has limited flexibility in use. The motor 3 is started, which drives the fixed plate 4, the frame 5 and the drill cylinder 6 to rotate, so that the drill cylinder 6 can drill into the concrete for sampling.

[0021] In this embodiment, the front end of the drill barrel 6 is provided with multiple blades 7, which can facilitate the cutting and sampling of concrete.

[0022] In this embodiment, the sliding assembly includes a lead screw 16, a knob 17, sliders 18, and a limiting assembly. One end of the lead screw 16 is rotatably connected to the left side of the inner cavity of the frame 5 via a bearing, and the other end of the lead screw 16 extends to the right end of the frame 5 and is fixedly connected to the knob 17. Two sliders 18 are respectively screwed to the left and right sides of the outer wall of the lead screw 16 and are respectively fixedly connected to two slide plates 14. The limiting assembly is located at the front end of the fixing plate 4 and is fixedly connected to the two sliders 18. By placing the fixing block 12 between the two slide plates 14 and aligning the fixing hole 13 with the fixing rod 15, rotating the knob 17 causes the knob 17 to drive the lead screw 16 to rotate, thereby causing the left and right sides of the outer wall of the lead screw 16 to move relative to each other. The threads generate relative thread rotational force, causing the two sliders 18 to slide simultaneously toward the middle of the lead screw 16 under the limiting action of the limiting groove 19 and the limiting block 20. This causes the two slide plates 14 to drive the two fixed rods 15 to slide simultaneously toward the middle of the front end of the frame 5. The two fixed rods 15 are then inserted into the inner cavities of the two fixed holes 13. Under the combined action of the fixed rods 15 and the fixed holes 13, the fixed block 12 can be installed, thus completing the fixing of the drill barrel 6. This allows for easy replacement of the drill barrel 6 according to the actual situation, solving the problem that existing concrete samplers cannot replace the drill bit for different sampling situations during actual use, resulting in limited flexibility in use.

[0023] In this embodiment, the threads on the left and right sides of the outer wall of the lead screw 16 are arranged opposite to each other, so that when the lead screw 16 rotates, the left and right sides of its outer wall generate relative thread rotation force, so that the two sliders 18 slide relative to each other simultaneously under the combined action of the limiting groove 19 and the limiting block 20.

[0024] In this embodiment, the limiting component includes a limiting groove 19 and limiting blocks 20. The limiting groove 19 is opened at the front end of the fixed plate 4. Both limiting blocks 20 are slidably embedded in the inner cavity of the limiting groove 19 and are respectively fixedly connected to the rear ends of the two sliders 18. Under the joint action of the limiting groove 19 and the limiting blocks 20, the sliders 18 are prevented from rotating with the lead screw 16 when the lead screw 16 rotates, which improves the stability of the sliding component during use. The inner cavity of the limiting groove 19 and the outer wall of the limiting block 20 are adapted to each other and are both in the shape of "T", which can keep one end of the limiting block 20 embedded in the inner cavity of the limiting groove 19, which improves the stability of the limiting component during use.

[0025] In this embodiment, a push plate 8 is slidably inserted into the inner cavity of the drill barrel 6. Connecting grooves 10 are provided on both sides of the inner wall of the drill barrel 6. Connecting blocks 11 are slidably embedded in the inner cavities of the two connecting grooves 10. The two connecting blocks 11 are fixedly connected to the outer walls of the push plate 8 at one end and close to each other. A spring 9 is fixedly connected to the rear side of the inner cavity of the drill barrel 6. The other end of the spring 9 is fixedly connected to the push plate 8. After the concrete sample enters the inner cavity of the drill barrel 6, the push plate 8 can slide along a straight line towards the rear side of the inner cavity of the drill barrel 6 under the limiting action of the connecting blocks 11 and the connecting grooves 10 to squeeze the spring 9, so that the spring 9 generates a corresponding elastic force. After the drill barrel 6 is separated from the concrete, the push plate 8 can be reset under the limiting action of the connecting grooves 10 and the connecting blocks 11 under the elastic force of the spring 9, thereby pushing the concrete sample out of the inner cavity of the drill barrel 6, which facilitates the removal of the concrete sample and avoids the sample getting stuck in the inner cavity of the drill barrel 6.

[0026] In this embodiment, the inner cavity of the connecting groove 10 and the outer wall of the connecting block 11 are adapted to each other and are both dovetail-shaped, so that one end of the connecting block 11 is always embedded in the inner cavity of the connecting groove 10.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sampler for concrete testing, comprising a handle (1) and a drill barrel (6), characterized in that: The top of the handle (1) is provided with a bracket (2), and a motor (3) is fixedly inserted into the middle of the bracket (2). The output end of the motor (3) is provided with a fixing plate (4). The front end of the fixing plate (4) is provided with a frame (5). The inner cavity of the frame (5) is provided with a sliding component. The front end of the sliding component is provided with two sliding plates (14). The two sliding plates (14) are provided with a fixing rod (15) on the side that is close to each other. The rear end of the drill barrel (6) is provided with a fixing block (12). The outer walls of the fixing block (12) are provided with fixing holes (13) on both sides. The outer walls of the fixing rod (15) are adapted to fit the inner cavity of the fixing hole (13).

2. The sampler for concrete testing according to claim 1, characterized in that: The front end of the drill barrel (6) is provided with multiple blades (7).

3. A sampler for concrete testing according to claim 1, characterized in that: The sliding assembly includes a lead screw (16), a knob (17), a slider (18), and a limiting assembly. One end of the lead screw (16) is rotatably connected to the left side of the inner cavity of the frame (5) via a bearing. The other end of the lead screw (16) extends to the right end of the frame (5) and is fixedly connected to the knob (17). The two sliders (18) are respectively screwed to the left and right sides of the outer wall of the lead screw (16) and are fixedly connected to the two slide plates (14). The limiting assembly is located at the front end of the fixed plate (4) and is fixedly connected to the two sliders (18).

4. A sampler for concrete testing according to claim 3, characterized in that: The threads on the left and right sides of the outer wall of the lead screw (16) are arranged opposite to each other.

5. A sampler for concrete testing according to claim 3, characterized in that: The limiting component includes a limiting groove (19) and a limiting block (20). The limiting groove (19) is opened at the front end of the fixing plate (4). The two limiting blocks (20) are slidably embedded in the inner cavity of the limiting groove (19) and are respectively fixedly connected to the rear end of the two sliders (18). The inner cavity of the limiting groove (19) and the outer wall of the limiting block (20) are adapted to each other and are both in the shape of "T".

6. A sampler for concrete testing according to claim 1, characterized in that: The inner cavity of the drill barrel (6) is slidably connected to a push plate (8). Both sides of the inner wall of the drill barrel (6) are provided with connecting grooves (10). The inner cavities of the two connecting grooves (10) are slidably embedded with connecting blocks (11). The two connecting blocks (11) are fixedly connected to the outer walls of the push plate (8) at one end close to each other. A spring (9) is fixedly connected to the rear side of the inner cavity of the drill barrel (6). The other end of the spring (9) is fixedly connected to the push plate (8).

7. A sampler for concrete testing according to claim 6, characterized in that: The inner cavity of the connecting groove (10) fits into the outer wall of the connecting block (11) and both are dovetail-shaped.

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