Compaction degree detection tool car based on sand filling method
By designing an automated sand filling compaction detection tool truck, the problems of low detection efficiency and low accuracy in traditional methods are solved, and a more efficient and accurate detection process is achieved.
Patent Information
- Application Number
- CN202421288163.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The traditional sand filling method has problems such as low detection efficiency, low accuracy and inconvenient tool carrying, resulting in project progress hindered and quality affected.
A compaction degree detection tool truck based on sand filling method was designed, using technologies such as automatic pit digging samplers and stepper motors to realize automated inspection and reduce manual operation steps.
Improve detection efficiency, reduce detection steps, enhance detection accuracy, and avoid the problems of tool damage and handling difficulties.
Smart Images
Figure CN223006148U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection, in particular to a compaction degree detection tool vehicle based on the sand replacement method. Background Technique
[0002] The compaction degree test detection method, the subgrade and pavement compaction quality are one of the most important internal indicators in the construction quality management of road engineering. The traditional compaction degree detection method is mainly the sand replacement method. This sand replacement method is applicable to the on-site determination of the density of fine-grained soil, sandy soil, and gravelly soil. The maximum particle size of the test sample is generally between 5mm and 60mm, and the thickness of the measured density layer is 150mm - 200mm. The basic principle is to use clean and uniform sand with a particle size of 0.30 - 0.60mm or 0.25 - 0.50mm to freely fall from a certain height into the test hole, and measure the volume of the test hole according to the principle of its unit weight remaining unchanged, and combine the water content of the aggregate to calculate the measured dry density of the test sample.
[0003] However, the steps of the sand replacement method are as follows: first, dig a hole on the ground, then collect the soil dug out from this hole into the same storage container, then pick up a cylinder containing fine sand, and pour a specified amount of fine sand into it. Before pouring the fine sand into it, it is necessary to weigh the fine sand with an electronic scale. After the hole is dug, align the cylinder containing fine sand with the dug hole and open the cylinder. Under the action of gravity, the fine sand inside the cylinder will automatically flow into the hole. When the hole is filled, close the cylinder, and then pour the remaining fine sand inside the cylinder onto the electronic scale to obtain the weight of the fine sand inside the hole. Then weigh the weight of the soil dug out from the hole, and calculate the weight data of the soil dug out and the weight data of the fine sand inside the hole according to the corresponding formula to obtain the test result. The current detection form is manually operated, with many detection procedures, high intensity, and large workload, resulting in low detection efficiency, and there are defects such as low detection accuracy and over-density phenomenon, seriously restricting the project progress and affecting the project quality. In addition, because there are many detection tools required for detection, it is inconvenient to carry, and there is a situation of bump damage during the handling process; therefore, it does not meet the existing requirements, and for this reason, we propose a compaction degree detection tool vehicle based on the sand replacement method. Content of the Utility Model
[0004] The purpose of the utility model is to provide a compaction degree detection tool vehicle based on the sand replacement method to solve the problems of all manual operations of the sand replacement method, many detection procedures, high intensity, large workload, resulting in low detection efficiency, and defects such as low detection accuracy and over-density phenomenon mentioned in the above background technique.
[0005] To achieve the above object, the utility model provides the following technical solution: A compaction degree detection tool vehicle based on the sand replacement method, including a detection tool vehicle, on one side of the rear end face of the detection tool vehicle, there is a strip-shaped groove, and on one side inside the strip-shaped groove, an automatic pit-digging and sampling machine is fixedly installed;
[0006] On the other side inside the strip-shaped groove, there is an outer-threaded fine sand storage barrel, inside the outer-threaded fine sand storage barrel, there is a fine sand storage barrel, the outer surface of the fine sand storage barrel located inside the outer-threaded fine sand storage barrel fits with the inner wall of the outer-threaded fine sand storage barrel, the inside of the fine sand storage barrel contains fine sand, and an electric valve is fixedly installed on the lower end face of the fine sand storage barrel.
[0007] Preferably, a sampling sleeve is fixedly installed on the outer surface of the automatic pit-digging and sampling machine, and the inner wall diameter of the sampling sleeve is the same as the inner wall diameter of the outer-threaded fine sand storage barrel.
[0008] Preferably, an annular groove is provided on the outer surface of the sampling sleeve, a metal ring is movably sleeved on the lower side inside the annular groove, on both sides of the lower end face of the metal ring, a contact sensor is fixedly installed, and the lower end face of the contact sensor is on the same horizontal line as the lower end face of the sampling sleeve.
[0009] Preferably, on one side of the fine sand storage barrel, a stepping motor fixedly installed on the inner wall of the detection tool vehicle is provided, the output shaft of the stepping motor is connected with an outer threaded rod through a coupling, and the stepping motor is electrically connected with the contact sensor;
[0010] Below the stepping motor, there is a metal sleeve sleeved on the outer surface of the fine sand storage barrel, the outer threaded rod vertically penetrates through the metal sleeve, and the outer threaded rod is connected with the metal sleeve through a threaded structure.
[0011] Preferably, a guide rod vertically movably penetrating through the metal sleeve is provided on one side of the outer threaded rod.
[0012] Preferably, an internal threaded connection port is provided at the middle position of the lower end face of the metal sleeve, the top end of the outer-threaded fine sand storage barrel is located inside the internal threaded connection port, and the outer-threaded fine sand storage barrel located inside the internal threaded connection port is connected with the internal threaded connection port through a threaded structure.
[0013] Preferably, a storage bin is provided on one side inside the detection tool vehicle, and above the storage bin, a metal cover fixedly installed on the outer surface of the detection tool vehicle is provided.
[0014] Preferably, the top of the fine sand storage barrel is located inside the storage bin, and an outer-threaded sealing cover is installed on the upper end face of the fine sand storage barrel through a threaded structure.
[0015] Preferably, a roller is fixedly installed at each of the four end corners of the lower end surface of the detection tool vehicle.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] With the automatic pit-digging and sampling machine of the present utility model, soil samples can be extracted from the ground. During the process of extracting soil samples by the automatic pit-digging and sampling machine, the fine sand located inside the fine sand storage barrel will be automatically discharged into the internal thread fine sand storage barrel, and it can be ensured that the overall volume of the fine sand entering the internal thread fine sand storage barrel is the same as the volume of the soil located inside the automatic pit-digging and sampling machine. Then, the staff can weigh the soil samples extracted by the automatic pit-digging and sampling machine and the fine sand located inside the internal thread fine sand storage barrel respectively to obtain the comparison data; through the tool vehicle of the present application, the detection steps are reduced and the detection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the whole of the present utility model;
[0019] Figure 2 is a side view of the overall structural view of the partial internal view of the present utility model;
[0020] Figure 3 is of the present utility model Figure 2 is an enlarged structural view of part A in
[0021] Figure 4 is of the present utility model Figure 3 is an enlarged structural view of part B in.
[0022] In the figure: 1, detection tool vehicle; 2, storage bin; 3, strip groove; 4, automatic pit-digging and sampling machine; 5, sampling sleeve; 6, metal ring; 7, contact sensor; 8, fine sand storage barrel; 9, external thread sealing cover; 10, fine sand; 11, electric valve; 12, metal sleeve; 13, internal thread connection port; 14, internal thread fine sand storage barrel; 15, external threaded rod; 16, stepping motor; 17, annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0024] The detection tool vehicle 1 (model TD12), the automatic pit-digging and sampling machine 4 for obtaining soil samples (model AC-1) and the stepping motor 16 (model DM542) mentioned in the present utility model can be purchased from the market.
[0025] Please refer to Figures 1 to 4, an embodiment provided by the present utility model: a compaction degree detection tool vehicle based on the sand replacement method, including a detection tool vehicle 1. On one side of the rear end face of the detection tool vehicle 1, there is a strip-shaped groove 3, and on one side inside the strip-shaped groove 3, an automatic pit-digging and sampling machine 4 is fixedly installed.
[0026] On the other side inside the strip-shaped groove 3, there is an externally threaded fine sand storage barrel 14. Inside the externally threaded fine sand storage barrel 14, there is a fine sand storage barrel 8. The outer surface of the fine sand storage barrel 8 located inside the externally threaded fine sand storage barrel 14 fits against the inner wall of the externally threaded fine sand storage barrel 14. The inside of the fine sand storage barrel 8 contains fine sand 10, and an electric valve 11 is fixedly installed on the lower end face of the fine sand storage barrel 8.
[0027] On the outer surface of the automatic pit-digging and sampling machine 4, a sampling sleeve 5 is fixedly installed. The inner wall diameter of the sampling sleeve 5 is the same as the inner wall diameter of the externally threaded fine sand storage barrel 14.
[0028] On the outer surface of the sampling sleeve 5, there is an annular groove 17. Inside the annular groove 17, a metal ring 6 is movably sleeved on the lower side. On both sides of the lower end face of the metal ring 6, a contact sensor 7 is fixedly installed, and the lower end face of the contact sensor 7 is on the same horizontal line as the lower end face of the sampling sleeve 5. When it is necessary to detect the ground, starting the automatic pit-digging and sampling machine 4 can drive the sampling sleeve 5 to rotate and move downward at the same time. Since the lower end face of the contact sensor 7 is on the same horizontal line as the lower end face of the sampling sleeve 5, when the lower end face of the sampling sleeve 5 touches the ground, the lower end face of the contact sensor 7 will also touch the ground accordingly.
[0029] On one side of the fine sand storage barrel 8, a stepping motor 16 fixedly installed on the inner wall of the detection tool vehicle 1 is provided. The output shaft of the stepping motor 16 is connected to an externally threaded rod 15 through a coupling, and the stepping motor 16 and the contact sensor 7 are connected through an electrical signal. Since the stepping motor 16 and the contact sensor 7 are connected through an electrical signal, when the contact sensor 7 touches the ground, the stepping motor 16 will be automatically started, and the externally threaded rod 15 connected to it can be driven to rotate through the stepping motor 16.
[0030] After the contact sensor 7 touches the ground and the stepping motor 16 is started, the sampling sleeve 5 will not stop in place but will continue to move downward. Since the metal ring 6 fixed to the contact sensor 7 is slidably installed inside the annular groove 17, when the sampling sleeve 5 continues to move into the ground, the contact sensor 7 will stay in place and will not move downward with it.
[0031] Below the stepping motor 16, there is a metal sleeve 12 sleeved on the outer surface of the fine sand storage barrel 8. The outer threaded rod 15 vertically penetrates through the metal sleeve 12, and the outer threaded rod 15 is connected to the metal sleeve 12 through a threaded structure. On one side of the outer threaded rod 15, there is a guide rod that vertically and movably penetrates through the metal sleeve 12. Due to the penetration of the guide rod, the metal sleeve 12 itself cannot rotate. When the outer threaded rod 15 rotates, the metal sleeve 12, which is connected to it through a threaded structure but cannot rotate itself, will move up and down accordingly. At this time, move the metal sleeve 12 downward and ensure that the descending speed of the metal sleeve 12 is the same as the descending speed of the sampling sleeve 5.
[0032] At the middle position of the lower end face of the metal sleeve 12, there is an internal thread connection port 13. The top end of the outer threaded fine sand storage barrel 14 is located inside the internal thread connection port 13, and the outer threaded fine sand storage barrel 14 located inside the internal thread connection port 13 is connected to the internal thread connection port 13 through a threaded structure. As the metal sleeve 12 descends, the outer threaded fine sand storage barrel 14 connected to it through a threaded structure will also move downward. As the outer threaded fine sand storage barrel 14 descends, the distance between the lower end face of the fine sand storage barrel 8 located inside the outer threaded fine sand storage barrel 14 and the inner wall of the outer threaded fine sand storage barrel 14 will gradually increase, and the distance between the two is the same as the length of the sampling sleeve 5 that penetrates into the ground. When a gap is generated between the lower end face of the fine sand storage barrel 8 and the inner wall of the outer threaded fine sand storage barrel 14, under the action of gravity, the fine sand 10 located inside the fine sand storage barrel 8 will flow into the inside of the outer threaded fine sand storage barrel 14 through the electric valve 11. At this time, the volume of the fine sand 10 located inside the outer threaded fine sand storage barrel 14 is the same as the volume of the soil sample located inside the sampling sleeve 5. When the sample extraction of the sampling sleeve 5 is completed and it moves upward, the stepping motor 16 and the electric valve 11 will automatically close accordingly, thereby stopping the movement of the outer threaded fine sand storage barrel 14, and by closing the electric valve 11, the fine sand 10 located inside the fine sand storage barrel 8 can be isolated from the fine sand 10 located inside the outer threaded fine sand storage barrel 14.
[0033] When the sampling sleeve 5 completely leaves the ground, take out the soil sample located inside the sampling sleeve 5, and remove the outer threaded fine sand storage barrel 14 through a threaded structure. Then, the staff can weigh the soil sample extracted by the automatic pit-digging sampling machine 4 and the fine sand 10 located inside the outer threaded fine sand storage barrel 14 respectively to obtain comparison data, and then obtain the test result according to the corresponding formula. Through the above technical solution, the test steps are reduced and the test efficiency is improved. Through the above technical solution, the test steps are reduced and the test efficiency is improved.
[0034] After the detection is completed, the metal sleeve 12 is moved back to its original position by the stepper motor 16. Then, the outer-threaded fine sand storage barrel 14 is installed through the threaded structure, and it is ensured that the lower end surface of the fine sand storage barrel 8 is in contact with the inner wall of the outer-threaded fine sand storage barrel 14.
[0035] On one side inside the inspection tool vehicle 1, there is a storage bin 2. Above the storage bin 2, there is a metal cover fixedly installed on the outer surface of the inspection tool vehicle 1. The top end of the fine sand storage barrel 8 is located inside the storage bin 2, and an outer-threaded sealing cover 9 is installed on the upper end surface of the fine sand storage barrel 8 through a threaded structure. When the weighing of the fine sand located inside the outer-threaded fine sand storage barrel 14 is completed, the storage bin 2 is opened, the outer-threaded sealing cover 9 is removed through the threaded structure, and this fine sand is poured back into the fine sand storage barrel 8 again. Through the above technical solution, the fine sand can be recycled, thereby reducing the consumption of fine sand during the sand replacement method inspection.
[0036] On one side inside the inspection tool vehicle, there is a storage bin. When inspection is required, all the tools and materials needed for the compaction degree inspection are centrally installed and stored in the storage bin, eliminating the need for frequent handling and loading / unloading work, as well as the phenomenon of bumping and damage during handling, avoiding the situation of forgetting tools and materials during use, reducing the preparation time, and improving the work efficiency.
[0037] At the four end corners of the lower end surface of the inspection tool vehicle 1, a roller is fixedly installed, and the inspection tool vehicle 1 and the roller are fixed by screws. When inspection is required, all the tools and materials needed for the compaction degree inspection are centrally installed and stored in the storage bin 2, eliminating the need for frequent handling and loading / unloading work, as well as the phenomenon of bumping and damage during handling, avoiding the situation of forgetting tools and materials during use, reducing the preparation time, and improving the work efficiency. Moreover, the inspection tool vehicle 1 can be moved more conveniently through the rollers.
[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A compaction detection tool vehicle based on the sand filling method, comprising a detection tool vehicle (1), characterized in that: A strip groove (3) is provided on one side of the rear end surface of the detection tool vehicle (1), and an automatic pit digging and sampling machine (4) is fixedly installed on one side inside the strip groove (3); An externally threaded fine sand storage bucket (14) is provided on the other side of the interior of the strip groove (3), and a fine sand storage bucket (8) is provided inside the externally threaded fine sand storage bucket (14). The outer surface of the fine sand storage bucket (8) located inside the externally threaded fine sand storage bucket (14) is in contact with the inner wall of the externally threaded fine sand storage bucket (14), and the interior of the fine sand storage bucket (8) contains fine sand (10). An electric valve (11) is fixedly mounted on the lower end surface of the fine sand storage bucket (8).
2. A compaction detection tool vehicle based on the sand filling method according to claim 1, characterized in that: A sampling sleeve (5) is fixedly mounted on the outer surface of the automatic pit digging and sampling machine (4), and the inner wall diameter of the sampling sleeve (5) is the same as the inner wall diameter of the externally threaded fine sand storage barrel (14).
3. A compaction detection tool vehicle based on the sand filling method according to claim 2, characterized in that: The outer surface of the sampling sleeve (5) is provided with an annular groove (17), and a metal ring (6) is provided on the lower movable sleeve inside the annular groove (17). A contact sensor (7) is fixedly mounted on both sides of the lower end surface of the metal ring (6), and the lower end surface of the contact sensor (7) is located on the same horizontal line as the lower end surface of the sampling sleeve (5).
4. A compaction detection tool vehicle based on sand filling method according to claim 3, characterized in that: A stepper motor (16) is provided on one side of the fine sand storage bucket (8) and is fixedly mounted on the inner wall of the detection tool vehicle (1); an output shaft of the stepper motor (16) is connected to an external threaded rod (15) via a coupling, and the stepper motor (16) is connected to a contact sensor (7) via an electrical signal; A metal sleeve (12) sleeved on the outer surface of the fine sand storage bucket (8) is provided below the stepper motor (16); the external threaded rod (15) vertically penetrates the metal sleeve (12); and the external threaded rod (15) and the metal sleeve (12) are connected via a threaded structure.
5. A compaction detection tool vehicle based on sand filling method according to claim 4, characterized in that: A guide rod is provided on one side of the external threaded rod (15) and is vertically movable and penetrates the metal sleeve (12).
6. A compaction detection tool vehicle based on sand filling method according to claim 4, characterized in that: An internal thread connection port (13) is provided in the middle of the lower end surface of the metal sleeve (12); the top end of the external thread fine sand storage bucket (14) is located inside the internal thread connection port (13); and the external thread fine sand storage bucket (14) located inside the internal thread connection port (13) is connected to the internal thread connection port (13) via a threaded structure.
7. The compaction detection tool vehicle based on the sand filling method according to claim 1 is characterized by: A storage compartment (2) is provided on one side of the interior of the detection tool cart (1), and a metal cover fixedly mounted on the outer surface of the detection tool cart (1) is provided above the storage compartment (2).
8. The compaction detection tool vehicle based on the sand filling method according to claim 7 is characterized in that: The top of the fine sand storage bucket (8) is located inside the storage bin (2), and an external thread sealing cover (9) is installed on the upper end surface of the fine sand storage bucket (8) via a thread structure.
9. The compaction detection tool vehicle based on the sand filling method according to claim 1 is characterized by: A roller is fixedly mounted on each of the four end corners of the lower end surface of the detection tool vehicle (1).