A hard polyvinyl chloride (PVC) pipe density sampling device

Abstract

This utility model discloses a density sampling device for rigid polyvinyl chloride (PVC) pipes, including a base, a column fixedly connected to the upper end of the base, a fixed seat fixedly connected to the upper end of the base, a V-shaped groove formed at the upper end of the fixed seat, a groove formed at the upper end of the column, a lever arm rotatably connected within the groove, a sleeve slidably fitted onto the column, a movable stage fixedly connected to the side wall of the sleeve, a moving mechanism for moving the movable stage provided at the lower end of the lever arm, a drive rod rotatably connected to the lower end of the movable stage, and a rotating plate eccentrically fixedly connected to the lower end of the drive rod, the rotating plate having a through groove. This utility model has a reasonable structure. By setting the V-shaped groove on the fixed seat, it can stably position the rigid PVC pipe, ensuring the accuracy of the sampling position and thus improving the sampling quality.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe testing equipment, and in particular to a density sampling device for rigid polyvinyl chloride (PVC) pipes. Background Technology

[0002] Rigid polyvinyl chloride (PVC) pipes are widely used in water supply and drainage, chemical industry, construction, and many other fields due to their advantages such as strong corrosion resistance, high chemical stability, and low cost. In the production and quality inspection of rigid PVC pipes, pipe density is a key quality indicator, directly affecting the pipe's strength, hardness, aging resistance, and other properties. Accurately measuring pipe density requires sampling the pipe material first.

[0003] However, existing PVC pipe density sampling devices have many problems. Some devices are complex in structure, cumbersome to operate, and have low sampling efficiency; others cannot guarantee the accuracy and consistency of sampling during the sampling process, resulting in large errors in the test results and failing to meet the needs of actual production and quality inspection. Therefore, designing a rigid polyvinyl chloride (PVC) pipe density sampling device that is simple in structure, easy to operate, and accurate in sampling is of great practical significance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a density sampling device for rigid polyvinyl chloride (PVC) pipes. This device solves the problems of complex structure, inconvenient operation, and inaccurate sampling in existing PVC pipe density sampling devices, enabling rapid and accurate sampling of rigid PVC pipes and improving sampling efficiency and quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A density sampling device for rigid polyvinyl chloride (PVC) pipes includes a base, a column fixedly connected to the upper end of the base, a fixed seat fixedly connected to the upper end of the base, a V-groove formed at the upper end of the fixed seat, a groove formed at the upper end of the column, a lever arm rotatably connected within the groove, a sleeve slidably fitted onto the column, a movable stage fixedly connected to the side wall of the sleeve, a moving mechanism for moving the movable stage provided at the lower end of the lever arm, a drive rod rotatably connected to the lower end of the movable stage, a rotating plate eccentrically fixedly connected to the lower end of the drive rod, a through groove formed on the rotating plate, a slider slidably connected within the through groove, a drill fixedly connected to the lower end of the slider, a threaded rod rotatably connected between the inner walls of both ends of the through groove, the end of the threaded rod passing through and rotatably connected to the side wall of the rotating plate, and the threaded rod passing through and threadedly connected to the slider.

[0007] Preferably, the moving mechanism includes a first connecting block fixedly connected to the lower end of the lever arm, a connecting rod rotatably connected to the first connecting block, a second connecting block fixedly connected to the upper end of the moving platform, and the end of the connecting rod away from the first connecting block rotatably connected to the second connecting block.

[0008] Preferably, a handle is fixedly connected to the end of the lever arm, and a non-slip rubber sleeve is fitted on the handle.

[0009] Preferably, a motor is fixedly connected to the upper end of the mobile platform, and the end of the output shaft of the motor is fixedly connected to the upper end of the drive rod.

[0010] Preferably, a fixing block is fixedly connected to the side wall of the column, and the fixing block is elastically connected to the lower end of the lever arm by a spring.

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

[0012] 1. The utility model, by setting a V-shaped groove on the fixed seat, can stably position rigid polyvinyl chloride (PVC) pipes, ensuring the accuracy of the sampling position and thus improving the sampling quality.

[0013] 2. By using a lever arm moving mechanism and motor, the drilling rig can move up and down and horizontally. Operators can easily control the position of the drilling rig by simply rotating the lever arm and adjusting the threaded rod. The operation is simple and convenient, which greatly improves the sampling efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of a density sampling device for rigid polyvinyl chloride (PVC) pipes proposed in this utility model;

[0015] Figure 2 This is a top-view perspective view of a density sampling device for rigid polyvinyl chloride (PVC) pipes proposed in this utility model.

[0016] Figure 3 This is a bottom perspective view of a density sampling device for rigid polyvinyl chloride (PVC) pipes proposed in this utility model.

[0017] Figure 4 This is a cross-sectional front view of a density sampling device for rigid polyvinyl chloride (PVC) pipes proposed in this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of the structure at point A in the image.

[0019] In the diagram: 1. Base, 2. Fixed seat, 3. Lever arm, 4. Fixed block, 5. Spring, 6. Column, 7. Sleeve, 8. Moving table, 9. First connecting block, 10. Drive rod, 11. Motor, 12. Second connecting block, 13. Connecting rod, 14. Rotating plate, 15. Through slot, 16. Slider, 17. Threaded rod, 18. Drilling machine, 19. V-groove. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Reference Figure 1-5 A density sampling device for rigid polyvinyl chloride (PVC) pipes includes a base 1, which serves as the basic support structure for the entire device, providing a stable installation platform for other components. A column 6 and a fixing seat 2 are fixedly connected to the upper end of the base 1. The column 6 supports and installs components such as the lever arm 3. A V-groove 19 is provided at the upper end of the fixing seat 2. The design of the V-groove 19 can well adapt to the circular cross-section of the rigid PVC pipe. During sampling, the pipe can be placed in the V-groove 19, providing stable support and positioning for the pipe, ensuring the accuracy of the sampling location.

[0022] The upper end of the column 6 has a groove, and a lever arm 3 is rotatably connected in the groove. The lever arm 3 can rotate flexibly in the groove. A sleeve 7 is slidably sleeved on the column 6. The sleeve 7 can slide up and down along the column 6. A movable platform 8 is fixedly connected to the side wall of the sleeve 7. The movable platform 8 can move with the sliding of the sleeve 7. The lower end of the lever arm 3 is provided with a moving mechanism for moving the movable platform 8. The moving mechanism includes a first connecting block 9 fixedly connected to the lower end of the lever arm 3. A connecting rod 13 is rotatably connected to the first connecting block 9. A second connecting block 12 is fixedly connected to the upper end of the movable platform 8. The end of the connecting rod 13 away from the first connecting block 9 is rotatably connected to the second connecting block 12. When the lever arm 3 is rotated, the movable platform 8 can be driven to move up and down along the column 6 through the cooperation of the first connecting block 9, the connecting rod 13 and the second connecting block 12.

[0023] A drive rod 10 is rotatably connected to the lower end of the moving stage 8, and a motor 11 is fixedly connected to the upper end of the moving stage 8. The output shaft of the motor 11 is fixedly connected to the upper end of the drive rod 10. When the motor 11 is working, it can drive the drive rod 10 to rotate. A rotating plate 14 is eccentrically fixedly connected to the lower end of the drive rod 10. A through groove 15 is provided on the rotating plate 14. A slider 16 is slidably connected in the through groove 15. A drill rig 18 is fixedly connected to the lower end of the slider 16. A threaded rod 17 is rotatably connected between the inner walls of the two ends of the through groove 15. The end of the threaded rod 17 passes through the side wall of the rotating plate 14 and is rotatably connected to it. The threaded rod 17 passes through the slider 16 and is threadedly connected to it. When the drive rod 10 drives the rotating plate 14 to rotate, the eccentric structure of the rotating plate 14 causes the slider 16 to slide in the through groove 15, thereby driving the drill 18 to move horizontally; when the threaded rod 17 is rotated, the slider 16 can be moved along the axial direction of the threaded rod 17 in the through groove 15 through the threaded transmission, thereby precisely adjusting the horizontal position of the drill 18 and adjusting the rotation radius of the drill 18 to meet different sampling requirements.

[0024] In addition, a handle is fixedly connected to the end of the lever arm 3. The handle is covered with an anti-slip rubber sleeve. The anti-slip rubber sleeve can increase the friction when the operator holds the handle, making the operation more comfortable and stable, and making it easier for the operator to rotate the lever arm 3. A fixing block 4 is fixedly connected to the side wall of the column 6. The fixing block 4 is elastically connected to the lower end of the lever arm 3 through a spring 5. The spring 5 can provide a certain restoring force after the lever arm 3 is rotated, so that the lever arm 3 can automatically return to the initial position when not in operation, which is convenient for the next operation.

[0025] When using this utility model, the rigid polyvinyl chloride (PVC) pipe to be sampled is placed in the V-groove 19 of the fixed base 2 to ensure stable placement of the pipe. The operator holds the handle at the end of the lever arm 3 and rotates the lever arm 3 downward. The lever arm 3 drives the moving table 8 to slide downward along the column 6 through the moving mechanism, so that the drill 18 is lowered to a suitable height to facilitate the placement of the pipe. According to the sampling requirements, the threaded rod 17 is rotated to adjust the position of the slider 16 in the through groove 15, thereby accurately adjusting the horizontal position of the drill 18 so that the drill 18 is aligned with the sampling point on the pipe. The motor 11 is started, and the motor 11 drives the drive rod 10 to rotate. The drive rod 10 drives the rotating plate 14 to rotate. The eccentric structure of the rotating plate 14 causes the drill 18 to perform a circular motion to complete the cutting and sampling. At the same time, the diameter of the circular motion can be adjusted by the threaded rod 17.

[0026] After sampling is completed, turn off motor 11, rotate power arm 3 downwards, and under the action of spring 5, power arm 3 automatically resets. The moving table 8 drives the drill 18 to move upwards to remove the sample, thus completing one sampling operation. If sampling is required again, repeat the above operation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hard polyvinyl chloride (PVC) pipe density sampling device comprising a base (1), characterized in that, A column (6) is fixedly connected to the upper end of the base (1), and a fixed seat (2) is fixedly connected to the upper end of the base (1). A V-groove (19) is provided on the upper end of the fixed seat (2), and a groove is provided on the upper end of the column (6). A lever arm (3) is rotatably connected in the groove. A sleeve (7) is slidably sleeved on the column (6), and a moving platform (8) is fixedly connected to the side wall of the sleeve (7). A moving mechanism for moving the moving platform (8) is provided at the lower end of the lever arm (3), and the lower end of the moving platform (8) is rotatably connected to... There is a drive rod (10), and a rotating plate (14) is eccentrically fixed to the lower end of the drive rod (10). A through groove (15) is provided on the rotating plate (14). A slider (16) is slidably connected in the through groove (15). A drill (18) is fixedly connected to the lower end of the slider (16). A threaded rod (17) is rotatably connected between the inner walls of the two ends of the through groove (15). The end of the threaded rod (17) passes through the side wall of the rotating plate (14) and is rotatably connected to it. The threaded rod (17) passes through the slider (16) and is threadedly connected to it.

2. A hard polyvinyl chloride (PVC) pipe density sampling device according to claim 1, wherein, The moving mechanism includes a first connecting block (9) fixedly connected to the lower end of the lever arm (3), a connecting rod (13) rotatably connected to the first connecting block (9), a second connecting block (12) fixedly connected to the upper end of the moving platform (8), and the end of the connecting rod (13) away from the first connecting block (9) rotatably connected to the second connecting block (12).

3. A hard polyvinyl chloride (PVC) pipe density sampling device according to claim 2, wherein, The end of the lever arm (3) is fixedly connected to a handle, and the handle is covered with a non-slip rubber sleeve.

4. A density sampling device for rigid polyvinyl chloride (PVC) pipe according to claim 3, wherein, The upper end of the mobile platform (8) is fixedly connected to a motor (11), and the output shaft end of the motor (11) is fixedly connected to the upper end of the drive rod (10).

5. A hard polyvinyl chloride (PVC) pipe density sampling device according to claim 4, wherein, A fixing block (4) is fixedly connected to the side wall of the column (6), and the fixing block (4) is elastically connected to the lower end of the lever arm (3) by a spring (5).

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