Automatic bag breaking and sampling device for backfill soil
By designing an automated device that includes weighing, bag breaking, filtration and vibration sampling functions, the problems of high repetitive labor intensity and low manual operation efficiency in backfill soil detection sample preparation are solved, and the automation and efficient accuracy of sample preparation are achieved.
Patent Information
- Application Number
- CN202421377291.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-17
Smart Images
Figure CN223037426U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geotechnical engineering measurement, in particular to an automatic bag-breaking sampling device for backfill soil. Background Technique
[0002] Backfill soil refers to the soil used to fill or reinforce the foundation during land development or construction. The quality of backfill soil is crucial for the stability and safety of the project. Therefore, it is essential to conduct tests on backfill soil. The existing testing method is to obtain backfill soil samples in batches manually by the ring knife method. One ring knife represents one sample, which is placed in a sample bag. Then, the backfill soil sample in the sample bag is further prepared into a test sample, weighed to obtain the test sample, and finally, the moisture content and dry density of the backfill soil and other relevant data can be calculated by drying and weighing the test sample again. A project often requires a large number of backfill soil samples. Therefore, the amount of test samples to be prepared is huge, resulting in high repetitive labor intensity, low manual operation efficiency, and easy errors. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is that when preparing backfill soil test samples, the repetitive labor intensity is high, the overall manual operation efficiency is low, and it is extremely easy to make mistakes. In view of the above problems, an automatic bag-breaking sampling device for backfill soil is proposed, which includes a fixed support, a weighing assembly, a bag-breaking assembly, a filtering assembly, and a vibrating sampling assembly. The fixed support is provided with a top platform and a bottom platform. The weighing assembly and the bag-breaking assembly are both arranged on the top platform. The filtering assembly is arranged on the top platform and is located below the bag-breaking assembly. The filtering assembly extends downward from the top platform. The vibrating sampling assembly is arranged on the bottom platform and is located below the filtering assembly. The weighing assembly, the filtering assembly, and the vibrating sampling assembly are also connected to an external control computer.
[0004] The technical solution of the present utility model is to set the structure of the weighing component to weigh the sample bag and the backfill soil sample contained therein before preparing the backfill soil test sample, and the obtained data is transmitted to an external control computer. Combining the previously set mass of the sample bag and the volume of the core cutter, the control computer can directly calculate the wet density of the backfill soil test sample; by setting the structure of the bag-breaking component, the sample bag can be broken, so that the backfill soil sample in the sample bag automatically falls without manual bag-breaking, saving manpower; by setting the structure of the filtering component, the backfill soil sample obtained by the core cutter method is screened to filter out the backfill soil with large volume, making the volume of the finally prepared test sample relatively average, improving the accuracy of the test data. After the preparation of the test sample is completed, the filtering component will remove the excess backfill soil for subsequent preparation of other test samples, greatly improving the efficiency. At the same time, each sample bag sample is prepared into two test samples after being divided into two bins, and the two groups of data confirm each other, which can improve the accuracy of the test data; by setting the structure of the vibration sampling component, the backfill soil sample filtered by the filtering component gradually moves forward to the front of the vibration bin under the vibration of the forward vibrator, and then falls from the front outlet. An aluminum box for accommodating the test sample is placed under the outlet of the vibration bin. By setting the working time of the forward vibrator, the backfill soil test sample can be quantitatively obtained.
[0005] For the optimization of the technical solution of the present utility model, the top platform is provided with a fixing plate. The fixing plate is provided with a through hole. One side of the fixing plate is provided with a fixing piece. The fixing plate is used to place relevant structures. The through hole on the fixing plate is used to pass the backfill soil sample that falls after the bag is broken during the preparation of the test sample. The fixing piece is higher than the fixing plate and is used to install the weighing component and the bag-breaking component. The bag-breaking component is located above the through hole of the fixing plate.
[0006] For the optimization of the technical solution of the present utility model, the weighing component includes a weighing sensor. The weighing sensor is arranged on the fixing piece. A weighing bin is arranged on the weighing sensor. The weighing sensor is used to weigh the mass of the sample bag and the backfill soil sample. The mass of the weighing bin has been weighed in advance and zeroed. Therefore, the data weighed by the weighing sensor is the net mass of the sample bag and the backfill soil sample. By setting the mass of the sample bag on the control computer, the mass of the backfill soil sample can be obtained.
[0007] For the optimization of the technical solution of the present utility model, the bag-breaking component includes a bag-breaking bin. The bag-breaking bin is connected to the fixing piece. The bag-breaking bin is located below the weighing component. A bag-breaking blade is arranged in the bag-breaking bin. The outlet below the bag-breaking bin is arranged above the through hole. The bag-breaking component is arranged below the weighing component. After weighing, the sample bag is directly translated and can automatically fall into the bag-breaking bin for automatic bag-breaking. The bag-breaking blade is vertically upward in the bag-breaking bin and uses gravity to automatically cut open the sample bag, so that the backfill soil sample inside it falls into the bag-breaking bin and then continues to fall through the through hole.
[0008] For the optimization of the technical solution of the present utility model, the filtering assembly includes a perforated gate plate. The perforated gate plate is arranged above the through hole and fits with the outlet below the bag-breaking bin. The perforated gate plate is connected to the movable end of the electric push rod. The electric push rod is arranged on the fixed plate. The filtering assembly further includes a two-compartment bin. The two-compartment bin is arranged on the lower surface of the fixed plate and is connected to the through hole. The perforated gate plate serves a filtering function and can only pass the backfill soil samples with relatively small volumes. Therefore, the volumes of the finally prepared test samples are similar, the test data is more accurate and has reference value. After the test samples are prepared, the electric push rod pushes the perforated gate plate to translate. The backfill soil samples remaining on the perforated gate plate are blocked by the bag-breaking bin and cannot move together. Finally, they all fall through the through hole. The two-compartment bin below the through hole can prepare one bag of backfill soil samples into two groups of test samples, and the data between the two groups can be mutually verified to ensure the accuracy of the data.
[0009] For the optimization of the technical solution of the present utility model, the vibration sampling assembly includes two vibration bins. The two vibration bins are respectively arranged below the two outlets of the two-compartment bin. A forward vibrator is arranged below the vibration bin. The forward vibrator is connected to the fixed seat. The fixed seat is arranged on the bottom platform. When preparing the test samples, an aluminum box is placed below the outlet of the vibration bin to receive the falling backfill soil samples. After preparation, the aluminum box is taken away and a waste recycling bucket is placed to make the excess and large-volume backfill soil samples fall into it. The forward vibrator vibrates continuously to displace the backfill soil, and the vibration can also prevent the perforated gate plate from being blocked and causing the backfill soil samples to not fall.
[0010] For the optimization of the technical solution of the present utility model, the outlet of the vibration bin is located at the front and cooperates with the forward vibrator. Under its vibration, the backfill soil slowly moves forward and then falls, and an appropriate amount of backfill soil samples can be quantitatively obtained to prepare the test samples.
[0011] The beneficial effects of the present utility model compared with the prior art are as follows:
[0012] 1. According to the technical solution of the present utility model, by setting the structure of the weighing assembly, before preparing the backfill soil test samples, the sample bag and the backfill soil samples contained therein are weighed, and the obtained data is transmitted to the external control computer. Combining the pre-set quality of the sample bag and the volume of the ring knife, the control computer can directly calculate the wet density of the backfill soil test samples.
[0013] 2. According to the technical solution of the present utility model, by setting the structure of the bag-breaking assembly, the sample bag can be broken, so that the backfill soil samples in the sample bag automatically fall without manual bag-breaking, saving manpower.
[0014] 3. The technical solution of the present utility model screens the backfill soil samples obtained by the ring knife method by setting the structure of the filtering component, filters out the backfill soil with large volume, makes the volume of the finally prepared test samples relatively average, improves the accuracy of the test data. After the preparation of the test samples is completed, the filtering component will remove the excess backfill soil so as to continue to prepare other test samples subsequently, greatly improving the efficiency. At the same time, each sample bag sample is prepared into two test samples after being divided into two bins, and the two groups of data confirm each other, which can improve the accuracy of the test data.
[0015] 4. The technical solution of the present utility model, through setting the structure of the vibration sampling component, under the vibration action of the forward vibrator, the backfill soil sample filtered by the filtering component gradually moves forward to the front of the vibration bin, and then falls from the front outlet. An aluminum box for accommodating the test sample is placed under the outlet of the vibration bin. By setting the working time of the forward vibrator, the backfill soil test sample can be quantitatively obtained. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional schematic diagram of an automatic bag-breaking sampling device for backfill soil;
[0017] Figure 2 is an exploded structural schematic diagram of an automatic bag-breaking sampling device for backfill soil;
[0018] Wherein: fixed bracket 1, top platform 11, fixed plate 12, through hole 13, fixing member 14, bottom platform 15, weighing component 2, weighing sensor 21, weighing bin 22, bag-breaking component 3, bag-breaking bin 31, bag-breaking blade 32, filtering component 4, perforated gate 41, electric push rod 42, two-bin 43, vibration sampling component 5, vibration bin 51, forward vibrator 52, fixed seat 53. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will combine the accompanying Figure 1-2 drawings in the embodiments of the present utility model to describe the technical solutions in the embodiments of the present utility model in detail. Embodiment 1
[0020] As Figure 1-2 shown, the present utility model is an automatic bag-breaking sampling device for backfill soil, including a fixed bracket 1, a weighing component 2, a bag-breaking component 3, a filtering component 4 and a vibration sampling component 5. The weighing component 2, the filtering component 4 and the vibration sampling component 5 are controlled by an external control computer and receive and process the output data, reducing manpower, automatically recording and calculating data, and improving efficiency.
[0021] The fixing bracket 1 is used to fixedly install this device. The fixing bracket 1 is directly grounded. When cooperating with other structures, it also needs to work separately and will not affect each other. The fixing bracket 1 is provided with two installation platforms, namely the top platform 11 and the bottom platform 15.
[0022] There is a certain distance between the top platform 11 and the bottom platform 15. The top platform 11 is provided with a fixing plate 12. There is a square through hole 13 in the middle of the fixing plate 12. There is also a fixing part 14 on the fixing plate 12. The fixing part 14 is located on one side of the through hole 13.
[0023] The weighing assembly 2 is arranged on the top platform 11 and is connected to the fixing part 14. The weighing assembly 2 includes a weighing sensor 21. The weighing sensor 21 is a mature existing product. The weighing sensor 21 is arranged on the upper surface of the fixing part 14. There is a weighing bin 22 on the weighing sensor 21.
[0024] The weighing sensor 21 is used to weigh the total mass of each bag of backfill soil sample. Before weighing, it is necessary to set the mass of the sample bag through the control computer. The mass of the sample bag is a known quantity. At the same time, the volume of the core cutter for obtaining the backfill soil sample by the core cutter method is set. The volume of the core cutter is the volume of each bag of backfill soil sample.
[0025] Moreover, it is necessary to eliminate the influence of the mass of the weighing bin 22 on the weighing result. Before starting weighing, the data of the weighing sensor 21 is cleared through the control computer to remove the mass of the weighing bin 22. In this way, the data output by the subsequent weighing sensor 21 is the mass of each bag of backfill soil sample.
[0026] The weighing data of the weighing sensor 21 is finally transmitted to the control computer. The control computer automatically records the data and processes it in combination with the previously set mass of the sample bag and the volume of the core cutter, and can directly calculate the wet density of each bag of backfill soil sample.
[0027] The bag-breaking assembly 3 is arranged on the top platform 11. The bag-breaking assembly 3 is located above the through hole 13 of the fixing plate 12. The bag-breaking assembly 3 includes a bag-breaking bin 31. The bag-breaking bin 31 is connected to the fixing part 14. The bag-breaking bin 31 is located below the weighing bin 22. After each bag of backfill soil sample is weighed by the weighing bin 22, it can directly enter the corresponding bag-breaking bin 31 for bag-breaking by translation.
[0028] There are bag-breaking blades 32 in the bag-breaking bin 31. The bag-breaking blades 32 are vertically upward. The sample bag is automatically cut by gravity, and the backfill soil sample inside it automatically falls into the bag-breaking bin, so as to prepare the test sample subsequently. The outlet below the bag-breaking bin 31 is arranged above the through hole 13 of the fixing plate 12. The backfill soil sample falls through the bag-breaking bin 31, passes through the through hole 13 and then continues to fall to complete the subsequent preparation work.
[0029] The filtering component 4 is arranged above the through hole 13 and is used for filtering and screening the backfill soil samples in the sample bag. The backfill soil samples that can continue to fall are of similar specifications, so that the finally prepared test samples are of similar specifications, the test data is more accurate, and it has comparability.
[0030] The filtering component 4 includes a perforated shutter 41. The perforated shutter 41 is located above the through hole 13 and fits with the outlet below the bag-breaking bin 31. The size of the holes on the perforated shutter 41 determines the size of the test sample.
[0031] The perforated shutter 41 is respectively connected to the movable ends of two electric push rods 42 on both sides. The two electric push rods 42 on both sides are installed on the fixed plate 12 and are located at its edges. The electric push rod 42 is a prior art and the specific model is not limited. When the electric push rod 42 moves to the limit, the perforated shutter 41 is completely staggered from the through hole 13, and the through hole 13 is completely exposed.
[0032] At the same time, the perforated shutter 41 is larger than the outlet below the bag-breaking bin 31. After the test sample is prepared, the electric push rod 42 pushes the perforated shutter 41 to displace. Since the perforated shutter 41 fits with the outlet below the bag-breaking bin 31, the backfill soil samples remaining on the perforated shutter 41 cannot displace with it. After the electric push rod 42 pushes the perforated shutter 41 to the limit, the excess backfill soil samples will all fall from the through hole 13.
[0033] The filtering component 4 further includes a two-way bin 43. The two-way bin 43 is arranged on the lower surface of the fixed plate 12 and is connected to the through hole 13. Each bag of backfill soil sample falls from the two outlets of the two-way bin 43 after passing through the two-way bin 43, and two groups of test samples can be prepared, which not only enriches the data and makes the number of test samples more, but also the two groups of data can confirm each other. If the difference is too large, it indicates that the data is incorrect and cannot be used as a reference.
[0034] The vibration sampling component 5 is arranged on the bottom platform 15 and is located below the two-way bin 43 of the filtering component 4, and obtains an appropriate amount of test samples through vibration.
[0035] The vibration sampling component 5 includes two vibration bins 51. The two vibration bins 51 are respectively arranged below the two outlets of the two-way bin 43. A forward vibrator 52 is connected below each vibration bin 51. The forward vibrator 52 is connected to the fixed seat 53. The fixed seat 53 is arranged on the bottom platform 15.
[0036] The backfill soil samples fall into the vibration bins 51 through the two-way bin. The outlets of the vibration bins 51 are located at the front. Under the action of the forward vibrator 52, the backfill soil samples gradually move forward and fall from the outlets of the vibration bins 51. Aluminum boxes can be placed at their outlets to fill an appropriate amount of backfill soil samples, and thus the test samples are prepared. After preparation, the aluminum boxes are taken away and a waste recycling bucket is placed to receive the excess backfill soil samples. At the same time, the sample bags after bag-breaking can also be thrown into it.
[0037] Weigh the test sample, then dry and dehydrate it and weigh it again. The moisture content of the test sample can be obtained from the two sets of data. Combining with the wet density obtained previously, the dry density of the test sample can be calculated.
[0038] To improve efficiency, multiple sets of each part structure can be set in the device. It should be noted that each weighing component 2 corresponds to a bag-breaking component 3 and a vibration sampling component 5. For example, if four weighing components 2 are set, there will be four bag-breaking components 3. Among them, the four weighing bins 22 respectively correspond to the four bag-breaking bins 31. At the same time, the number of through holes 13 is also four. Therefore, the number of two-part bins 43 is also four. And the perforated shutter 41 above only needs to be large enough to cover the outlets of all the bag-breaking bins 31.
[0039] The number of vibration sampling components 5 is four. Each group of vibration sampling components 5 includes two vibration bins 51 and a forward vibrator 52. The two vibration bins 51 in each group are located at the two outlets of the same two-part bin 43.
[0040] The usage method of an automatic bag-breaking sampling device for backfill soil in this embodiment is as follows:
[0041] Obtain the backfill soil sample by the core cutter method and put it into the sample bag. Set the mass of the sample bag and the volume of the core cutter through an external control computer, start the device, clear the data of the weighing sensor 21, and then put the sample bag into the weighing bin 22. The weighing sensor 21 weighs the total mass of the sample bag and the backfill soil sample. Combining with the mass of the sample bag and the volume of the core cutter, the wet density of the backfill soil sample can be calculated. Then translate the sample bag so that it falls into the bag-breaking bin 31. Affected by gravity, the bag-breaking blade 32 cuts the sample bag, and the backfill soil in the sample bag enters the bag-breaking bin 31. Throw the sample bag into the waste recycling bin.
[0042] The backfill soil sample in the bag-breaking bin 31 falls to the filtering component 4. Through filtering and screening, only part of the fine backfill soil sample falls from the perforated shutter, passes through the two outlets of the two-part bin 43, and falls into the two vibration bins 51. Under the vibration of the forward vibrator 52, the backfill soil sample gradually moves forward and falls from the outlet at the front of the vibration bin 51. Receive an appropriate amount of the falling backfill soil sample through an aluminum box, and the preparation of the test sample is completed. Then take away the aluminum box, place the waste recycling bin under the outlet of the vibration bin 51, and the electric push rod 42 pushes the perforated shutter 41 to move. The remaining backfill soil on the perforated shutter 41 all falls into the vibration bin 51 through the two-part bin 43 and finally all falls into the waste recycling bin under the action of the forward vibrator 52. Weigh the test sample, then dry and dehydrate it and weigh it again to calculate the moisture content of the test sample. Then, combined with the previously calculated wet density, the moisture content of the test sample can be further calculated.
[0043] The above embodiments are only used to illustrate the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any modification made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.
Claims
1. An automatic bag breaking sampling device for backfill soil, characterized in that: The invention comprises a fixed support (1), a weighing component (2), a bag breaking component (3), a filtering component (4) and a vibration sampling component (5), wherein the fixed support (1) is provided with a top platform (11) and a bottom platform (15), the weighing component (2) and the bag breaking component (3) are both arranged on the top platform (11), the filtering component (4) is arranged on the top platform (11) and is located below the bag breaking component (3), the filtering component (4) extends downward from the top platform (11), the vibration sampling component (5) is arranged on the bottom platform (15) and is located below the filtering component (4), and the weighing component (2), the filtering component (4) and the vibration sampling component (5) are also connected to an external control computer.
2. The automatic bag breaking and sampling device for backfill soil according to claim 1 is characterized in that: The top platform (11) is provided with a fixing plate (12), a through hole (13) is provided on the fixing plate (12), and a fixing piece (14) is provided on one side of the fixing plate (12).
3. The automatic bag breaking and sampling device for backfill soil according to claim 2 is characterized in that: The weighing assembly (2) comprises a weighing sensor (21), the weighing sensor (21) is arranged on a fixing member (14), and a weighing bin (22) is arranged on the weighing sensor (21).
4. The automatic bag breaking and sampling device for backfill soil according to claim 2 is characterized in that: The bag breaking assembly (3) comprises a bag breaking bin (31), the bag breaking bin (31) being connected to the fixing member (14), the bag breaking bin (31) being located below the weighing assembly (2), a bag breaking blade (32) being provided in the bag breaking bin (31), and an outlet below the bag breaking bin (31) being arranged above the through hole (13).
5. The automatic bag breaking and sampling device for backfill soil according to claim 4 is characterized in that: The filter assembly (4) comprises a perforated gate plate (41), the perforated gate plate (41) being arranged above the through hole (13) and abutting against the outlet below the bag breaking bin (31), the perforated gate plate (41) being connected to the movable end of an electric push rod (42), the electric push rod (42) being arranged on the fixed plate (12), and the filter assembly (4) further comprises a binary bin (43), the binary bin (43) being arranged on the lower surface of the fixed plate (12) and connected to the through hole (13).
6. The automatic bag breaking and sampling device for backfill soil according to claim 5 is characterized in that: The vibration sampling assembly (5) comprises two vibration silos (51), the two vibration silos (51) being respectively arranged below the two outlets of the binary bin (43), a forward vibrator (52) being arranged below the vibration silo (51), the forward vibrator (52) being connected to a fixing seat (53), and the fixing seat (53) being arranged on the bottom platform (15).
7. The automatic bag breaking and sampling device for backfill soil according to claim 6 is characterized by: The outlet of the vibrating silo (51) is located at the front.