A semi-automatic scraping device for geotechnical compaction test

Abstract

The utility model discloses a semi-automatic scraping and leveling device for geotechnical compaction test, belonging to the technical field of geotechnical test equipment. The semi-automatic scraping and leveling device for geotechnical compaction test comprises a base. The utility model can toggle a scraping lever in the horizontal direction to cut soil samples through a scraper. When the scraping lever rotates horizontally, the scraping lever with a ratchet wheel can drive a support rod to rotate, and the support rod can drive a first gear to rotate, and then drive a third gear to rotate through a second gear, and the third gear drives a rotating disk to rotate, so that a compaction cylinder itself rotates, and then the coordinated work of the rotating scraping operation and the rotation of the compaction cylinder is realized. When the scraper is performing the scraping operation, the compaction cylinder itself also rotates, thereby enhancing the scraping force of the scraper, and avoiding the compaction cylinder from moving along the direction of the force, and at the same time realizing single-person operation, enhancing the safety and stability of the device, improving work efficiency, and ensuring the flatness of the scraping surface.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical testing equipment, and more specifically to a semi-automatic scraping device for geotechnical compaction testing. Background Art

[0002] Compaction test is one of the most important tests in geotechnical tests. Determining the optimal moisture content and maximum dry density of soil samples through tests is a prerequisite for ensuring the smooth progress of tests such as unconfined compressive strength test and CBR test. The compaction specimen in geotechnical test is a material made of soil or soil-rock mixture. In geotechnical tests, the compaction specimen is fixed by a test tube. The part of the top of the compacted specimen that is higher than the test tube needs to be removed by researchers using tools such as soil trimmers. However, there are still certain problems with the existing scraping device used for geotechnical compaction tests, which has caused certain inconveniences to the use of the scraping device used for geotechnical compaction tests.

[0003] In actual use, the existing scraping device for geotechnical compaction test is relatively easy to scrape when the moisture content of the sample is high, but it is more difficult to scrape when the moisture content is low. In addition, when operated by a single person, the compaction cylinder is easy to move in the direction of the force and is laborious. Therefore, there is an urgent need to improve the technology of the scraping device structure for geotechnical compaction test to improve this equipment. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a semi-automatic scraping device for geotechnical compaction test, which can be used to realize horizontally moving the scraping lever when the semi-automatic scraping device is used, so that the soil sample can be cut by the scraper. When the scraper lever rotates horizontally, the scraper lever with a ratchet will drive the support rod to rotate, and the support rod can drive the first gear to rotate, and then drive the second gear to rotate the third gear, and the third gear can drive the rotating disk to rotate, so that the compaction cylinder can rotate at a certain angle, thereby realizing the coordinated work of the rotating scraping operation and the rotation of the compaction cylinder. When the scraper is performing the scraping operation, the compaction cylinder itself also rotates, which enhances the scraping force of the scraper and avoids the compaction cylinder from moving in the direction of the force. At the same time, single-person operation is realized, the safety and stability of the device are enhanced, the work efficiency is improved, and the flatness of the scraping surface is ensured.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A semi-automatic scraping device for geotechnical compaction test comprises a base, the bottom end of the base is connected to four symmetrical supporting feet, a groove is provided inside the base, a first gear is rotatably connected inside the groove, a second gear is meshed at the right end of the first gear, a third gear is meshed at the end of the second gear away from the first gear, a transmission shaft is fixedly connected to the middle of the top end of the third gear, a support rod is connected to the top end of the first gear, the support rod extends to the outside of the base and is rotatably connected to the base, a fourth gear is sleeved on the outer end of the support rod, and the fourth gear A partition is fixedly connected to the bottom end, and the partition is connected to the support rod. A scraper lever is provided on one side of the support rod, and a ratchet is connected to the end of the scraper lever close to the support rod, and the ratchet is meshed with the outside of the fourth gear. The outside of the support rod limits the ratchet meshed with the outside of the fourth gear through a limiting mechanism, and a scraper knife is installed on the bottom of the scraper lever through a screw limiter. A rotating disk is fixedly connected to the middle of the top of the third gear, and the rotating disk is located on the top of the base. A compaction cylinder is placed above the rotating disk, and the top of the rotating disk limits and clamps the compaction cylinder through a clamping mechanism.

[0009] Furthermore, one end of the soil scraping lever away from the ratchet is connected to a handle, and the outer end of the handle is engraved with anti-slip grooves.

[0010] Furthermore, three fixed plates are connected to the top of the rotating disk, and the three fixed plates are arranged around the rotating disk. The internal threads of the fixed plates are connected to threaded rods, and the end of the threaded rod close to the compaction cylinder is connected to a clamping plate, and the end of the clamping plate close to the fixed plate is connected to a guide rod, and the guide rod passes through the fixed plate and forms a sliding connection with the fixed plate.

[0011] Furthermore, a guide rod groove is formed on one side of the fixing plate close to the guide rod, and the inner diameter of the guide rod groove matches the outer diameter of the guide rod.

[0012] Furthermore, one end of the clamping plate away from the threaded rod is glued to a rubber pad, and the outer end of the rubber pad is provided with a plurality of protruding particles.

[0013] Furthermore, the outer sleeve of the support rod is provided with a support plate, the top end of the support plate is rotatably connected to a threaded sleeve, the threaded sleeve is threadedly connected to the outside of the support rod, the inner wall of the support plate is fixedly connected to a slider, and a sliding groove is opened at one end of the support rod close to the slider.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) The utility model can move the scraper lever in the horizontal direction to cut the soil sample through the scraper. When the scraper lever rotates horizontally, the scraper lever with a ratchet will drive the support rod to rotate, and the support rod can drive the first gear to rotate, and then drive the second gear to rotate the third gear. The third gear can drive the rotating disk to rotate, so that the compaction cylinder can rotate at a certain angle, thereby realizing the coordinated work of the rotating scraping operation and the rotation of the compaction cylinder. When the scraper is performing the scraping operation, the compaction cylinder itself also rotates, thereby enhancing the scraping force of the scraper and preventing the compaction cylinder from moving in the direction of the force. At the same time, single-person operation is realized, the safety and stability of the device are enhanced, the work efficiency is improved, and the flatness of the scraping surface is ensured.

[0017] (2) According to the utility model, the compaction cylinder is placed on the rotating disk, and then the threaded rod on the rotating disk can be rotated to cause relative movement between the threaded rod and the fixed plate, thereby driving the clamping plate to move against the outer wall of the compaction cylinder, which is convenient for limiting the compaction cylinder. The side ends of the clamping plate are glued with anti-skid rubber pads to increase the friction between the clamping plate and the compaction cylinder and avoid relative movement between the compaction cylinder and the clamping plate. The guide rod at one end of the clamping plate passes through the fixed plate to avoid the threaded rod rotating and driving the clamping plate to rotate together, thereby affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at C in the middle;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of the utility model from top view;

[0022] Figure 5 It is a schematic diagram of the structure of the utility model viewed from above along line BB.

[0023] Description of the numbers in the figure:

[0024] 1. Base; 2. Support foot; 3. Groove; 4. First gear; 5. Second gear; 6. Third gear; 7. Transmission shaft; 8. Support rod; 9. Fourth gear; 10. Scraper lever; 11. Ratchet; 12. Scraper knife; 13. Rotating disk; 14. Compacting cylinder; 15. Fixed plate; 16. Threaded rod; 17. Clamping plate; 18. Guide rod; 19. Partition; 20. Abutment plate; 21. Threaded sleeve; 22. Slider; 23. Slide groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-5 A semi-automatic scraping device for geotechnical compaction test comprises a base 1, four symmetrical legs 2 are connected to the bottom end of the base 1, a groove 3 is provided inside the base 1, a first gear 4 is rotatably connected inside the groove 3, a second gear 5 is meshed at the right end of the first gear 4, a third gear 6 is meshed at the end of the second gear 5 away from the first gear 4, a transmission shaft 7 is fixedly connected to the middle of the top of the third gear 6, a support rod 8 is connected to the top of the first gear 4, the support rod 8 extends to the outside of the base 1 and is rotatably connected to the base 1, a fourth gear 9 is sleeved on the outer end of the support rod 8, a partition 19 is fixedly connected to the bottom end of the fourth gear 9, the partition 19 is connected to the support rod 8, and a scraping device is provided on one side of the support rod 8. Soil lever 10, one end of the scraper lever 10 close to the support rod 8 is connected to a ratchet 11, the ratchet 11 is meshed with the outside of the fourth gear 9, and the outside of the support rod 8 uses a limiting mechanism to abut and limit the ratchet 11 meshed with the outside of the fourth gear 9. The middle part of the support rod 8 that fixes the scraper lever 10 is sleeved with the fourth gear 9, and the fourth gear 9 has a serrated surface, so that the ratchet 11 at the end of the scraper lever 10 is meshed with each other to realize the common rotation of the scraper lever 10 and the support rod 8. At the same time, due to the gear meshing working mode, cutting of samples of different heights can be realized. A scraper knife 12 is installed at the bottom of the scraper lever 10 through a screw limiter, and the scraper knife 12 is fixed to the middle part of the scraper lever 10, and fixed at both ends by screws. When the blade is not sharp, it can be replaced. The length of the scraper 12 can be installed according to actual needs so that the entire width of the compacted sample can be covered during scraping. A rotating disk 13 is fixedly connected to the middle of the top of the third gear 6. The rotating disk 13 is located on the top of the base 1. A compaction cylinder 14 is placed above the rotating disk 13. The top of the rotating disk 13 clamps the compaction cylinder 14 through a clamping mechanism.

[0028] By moving the scraper lever 10 in the horizontal direction, the soil sample can be cut by the scraper knife 12. When the scraper lever 10 rotates horizontally, the scraper lever 10 with the ratchet 11 will drive the support rod 8 to rotate, and the support rod 8 can drive the first gear 4 to rotate, and then drive the second gear 5 to make the third gear 6 rotate, and the third gear 6 can drive the rotating disk 13 to rotate, so that the compaction cylinder 14 can rotate at a certain angle, thereby realizing the coordinated work of the rotating scraping operation and the rotation of the compaction cylinder 14. When the scraper knife 12 is performing the scraping operation, the compaction cylinder 14 itself also rotates, which enhances the scraping force of the scraper knife 12 and avoids the compaction cylinder 14 from moving in the direction of the force. At the same time, single-person operation is realized, the safety and stability of the device are enhanced, the work efficiency is improved, and the flatness of the scraping surface is ensured.

[0029] See also Figure 1-2 The end of the scraper lever 10 away from the ratchet 11 is connected to a handle, and the outer end of the handle is engraved with anti-slip grooves. The top of the rotating disk 13 is connected to three fixed plates 15, and the three fixed plates 15 are arranged around the rotating disk 13. The internal thread of the fixed plate 15 is connected to a threaded rod 16, and the end of the threaded rod 16 close to the compaction cylinder 14 is connected to a clamping plate 17, and the end of the clamping plate 17 close to the fixed plate 15 is connected to a guide rod 18, which runs through the fixed plate 15 and forms a sliding connection with the fixed plate 15.

[0030] The compacting cylinder 14 is placed on the rotating disk 13, and then the threaded rod 16 on the rotating disk 13 can be rotated to make the threaded rod 16 and the fixed plate 15 move relative to each other, so as to drive the clamping plate 17 to move against the outer wall of the compacting cylinder 14, so as to limit the compacting cylinder 14, and the guide rod 18 at one end of the clamping plate 17 passes through the fixed plate 15, so as to avoid the threaded rod 16 rotating and driving the clamping plate 17 to rotate together and affect the use effect.

[0031] See also Figure 2-3 A guide rod groove is provided on one side of the fixed plate 15 close to the guide rod 18, and the inner diameter of the guide rod groove coincides with the outer diameter of the guide rod 18, so that the guide rod 18 can slide horizontally in the guide rod groove and prevent the guide rod 18 from shaking up and down in the guide rod groove. A rubber pad is glued to one end of the splint 17 away from the threaded rod 16, and a plurality of raised particles are provided at the outer end of the rubber pad. By providing a plurality of raised particles at the outer end of the rubber pad, the friction between the splint 17 and the compaction cylinder 14 is increased, and the threaded rod 16 is prevented from rotating and driving the splint 17 to rotate together, thereby affecting the use effect. A butt plate 20 is provided on the outer sleeve of the support rod 8, and a threaded sleeve 21 is rotatably connected to the top end of the butt plate 20. The threaded sleeve 21 is threadedly connected to the outside of the support rod 8, and a slider 22 is fixedly connected to the inner wall of the butt plate 20, and a slide groove 23 is provided at one end of the support rod 8 close to the slider 22.

[0032] The ratchet 11 is sleeved on the outside of the fourth gear 9, the ratchet 11 is meshed with the fourth gear 9, and the bottom end of the ratchet 11 is supported by the partition 19, and then the butt plate 20 and the threaded sleeve 21 are sleeved on the outside of the support rod 8, and by rotating the threaded sleeve 21, the threaded sleeve 21 drives the butt plate 20 to move longitudinally on the support rod 8 through the threaded connection with the support rod 8. The threaded sleeve 21 and the butt plate 20 are rotatably connected, and the slider 22 at the inner wall of the butt plate 20 is located in the slide groove 23 at the support rod 8, so that when the threaded sleeve 21 rotates, it is avoided that the butt plate 20 is driven to rotate together and affect the use effect, until the threaded sleeve 21 drives the butt plate 20 to move to the top end of the ratchet 11 and presses against the upper surface of the ratchet 11. The ratchet 11 can be locked on the support rod 8 through the butt plate 20 and the partition 19, so that when the support rod 8 rotates, the ratchet 11 can be driven to rotate together, and the ratchet 11 is prevented from shaking longitudinally on the support rod 8 and sliding out when the support rod 8 rotates.

[0033] In the utility model, when using the device, the relevant technical personnel set the ratchet 11 on the outside of the fourth gear 9, and use the limiting mechanism to abut and limit the ratchet (11) meshed with the outside of the fourth gear (9), and then place the compacting cylinder 14 on the rotating disk 13, and then the threaded rod 16 on the rotating disk 13 can be rotated to make the threaded rod 16 and the fixed plate 15 move relative to each other, so as to drive the clamping plate 17 to move against the outer wall of the compacting cylinder 14, which is convenient for limiting the compacting cylinder 14, and the side end of the clamping plate 17 is glued with an anti-skid rubber pad, which increases the friction between the clamping plate 17 and the compacting cylinder 14, and avoids the compacting cylinder 14 and the clamping plate 17 from relative movement;

[0034] By moving the scraper lever 10 in the horizontal direction, the soil sample can be cut by the scraper knife 12. When the scraper lever 10 rotates horizontally, the scraper lever 10 with the ratchet 11 will drive the support rod 8 to rotate, and the support rod 8 can drive the first gear 4 to rotate, and then drive the second gear 5 to make the third gear 6 rotate, and the third gear 6 can drive the rotating disk 13 to rotate, so that the compaction cylinder 14 can rotate at a certain angle, thereby realizing the coordinated work of the rotating scraping operation and the rotation of the compaction cylinder 14. When the scraper knife 12 is performing the scraping operation, the compaction cylinder 14 itself also rotates, which enhances the scraping force of the scraper knife 12 and avoids the compaction cylinder 14 from moving in the direction of the force. At the same time, single-person operation is realized, the safety and stability of the device are enhanced, the work efficiency is improved, and the flatness of the scraping surface is ensured.

[0035] Although the 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 semi-automatic scraping device for geotechnical compaction test, comprising a base (1), characterized in that: The bottom end of the base (1) is connected to four symmetrical supporting feet (2), the interior of the base (1) is provided with a groove (3), the interior of the groove (3) is rotatably connected to a first gear (4), the right end of the first gear (4) is meshed with a second gear (5), the end of the second gear (5) away from the first gear (4) is meshed with a third gear (6), the middle of the top end of the third gear (6) is fixedly connected to a transmission shaft (7), the top end of the first gear (4) is connected to a support rod (8), the support rod (8) extends to the outside of the base (1) and is rotatably connected to the base (1), the outer end of the support rod (8) is sleeved with a fourth gear (9), the bottom end of the fourth gear (9) is fixedly connected to a partition plate (19), and the partition plate (19) is connected to the first gear (1). The third gear (6) is connected to a support rod (8), a scraping lever (10) is provided on one side of the support rod (8), a ratchet (11) is connected to one end of the scraping lever (10) close to the support rod (8), the ratchet (11) is meshed with the outside of the fourth gear (9), the outside of the support rod (8) is abutted and limited by the ratchet (11) meshed with the outside of the fourth gear (9) through a limiting mechanism, a scraping knife (12) is installed at the bottom of the scraping lever (10) through a screw limiter, a rotating disk (13) is fixedly connected to the middle of the top of the third gear (6), the rotating disk (13) is located at the top of the base (1), a compacting cylinder (14) is placed above the rotating disk (13), and the top of the rotating disk (13) is clamped and clamped to the compacting cylinder (14) through a clamping mechanism.

2. A semi-automatic scraping device for geotechnical compaction test according to claim 1, characterized in that: One end of the soil scraping lever (10) away from the ratchet (11) is connected to a handle, and the outer end of the handle is engraved with anti-slip grooves.

3. A semi-automatic scraping device for geotechnical compaction test according to claim 1, characterized in that: The clamping mechanism comprises a fixed plate (15), a threaded rod (16), a clamping plate (17) and a guide rod (18); the top end of the rotating disk (13) is connected to three fixed plates (15); the three fixed plates (15) are arranged around the rotating disk (13); the internal thread of the fixed plate (15) is connected to the threaded rod (16); one end of the threaded rod (16) close to the compaction cylinder (14) is connected to the clamping plate (17); one end of the clamping plate (17) close to the fixed plate (15) is connected to the guide rod (18); the guide rod (18) passes through the fixed plate (15) and forms a sliding connection with the fixed plate (15).

4. A semi-automatic scraping device for geotechnical compaction test according to claim 3, characterized in that: A guide rod groove is provided on one side of the fixing plate (15) close to the guide rod (18), and the inner diameter of the guide rod groove matches the outer diameter of the guide rod (18).

5. A semi-automatic scraping device for geotechnical compaction test according to claim 3, characterized in that: One end of the clamping plate (17) away from the threaded rod (16) is glued and connected to a rubber pad, and the outer end of the rubber pad is provided with a plurality of protruding particles.

6. A semi-automatic scraping device for geotechnical compaction test according to claim 1, characterized in that: The limiting mechanism comprises a butt plate (20), a threaded sleeve (21), a slider (22) and a slide groove (23); the outer sleeve of the support rod (8) is provided with a butt plate (20); the top end of the butt plate (20) is rotatably connected with the threaded sleeve (21); the threaded sleeve (21) is threadedly connected to the outer side of the support rod (8); the inner wall of the butt plate (20) is fixedly connected with the slider (22); and the slide groove (23) is provided at one end of the support rod (8) close to the slider (22).

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