Hole digging tool for detecting compactness through sand filling method

Abstract

The utility model relates to the technical field of hole digging tools, and discloses a hole digging tool for detecting compactness through a sand filling method, which comprises a conveying pipe, a hole digging assembly is arranged at the top of the conveying pipe, and a sand screening assembly is arranged at the top of a base. According to the hole digging tool for detecting the compaction degree through the sand filling method, the motor rotates to drive the lead screw to rotate, the lead screw rotates to drive the auger to rotate, through the arrangement of the fixing plate, the lead screw can drive the auger to ascend and descend when rotating, hole drilling and hole digging can be conducted on the ground when the auger rotates downwards, the motor is wrapped by the fixing sleeve to be fixed, and the hole digging efficiency is improved. Through the arrangement of the connecting rod and the sliding ring, the motor and the lead screw can synchronously ascend and descend, the sliding of the sliding ring and the sliding rod plays a role in keeping balance, when the lead screw rotates, the motor does not rotate, the auger rotates, the motor can synchronously ascend and descend along with the lead screw and the auger, and through the arrangement of the assembly, manpower can be greatly saved during hole digging work; and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of digging tools, specifically a digging tool for testing compaction using the sand-filling method. Background Technology

[0002] The sand cone method is a commonly used test method for testing compaction degree. It is suitable for testing the compaction degree of roadbeds, but not for testing the compaction degree of materials with large pores or voids, such as rockfill embankments. The advantage of the sand cone method is that the measured value is accurate. The disadvantages are that the test is relatively slow, the operation is relatively complicated, a large amount of sand needs to be carried, and the weighing is repeated many times. The density and cone weight of the standard sand must be measured frequently.

[0003] The tools for testing compaction using the sand cone method mainly include a base plate, casing, support plate, auger drill bit, and snap-fit ​​components. When digging, ensure the ground surface is flat to avoid surface protrusions that could lead to errors in volume calculation. Attention should also be paid to the perimeter of the test pit, the depth of the pit, and safety precautions to ensure the accuracy and safety of the digging process.

[0004] Existing technology publication CN215180183U discloses a hole-digging tool for testing compaction degree using the sand-filling method. This tool includes a base plate with a protective casing on its upper surface. A through hole is provided on the upper surface of the base plate for the protective casing to pass through. Both ends of the protective casing are open, and a support plate is provided at the top of the protective casing. A spiral drill bit is provided on the bottom side of the support plate, with the end of the spiral drill bit away from the support plate extending to the bottom of the protective casing. A snap-fit ​​assembly is provided between the support plate and the protective casing to snap the support plate onto the top of the protective casing, which improves the efficiency of sample hole digging.

[0005] While the existing technology described above allows the sand-filling method for testing compaction to stabilize the auger bit with the ground via a base plate and casing, and the rotation of the auger bit brings out the underground sand to complete the excavation, and the locking assembly can hold the support plate on top of the casing, improving the efficiency of sample hole excavation, the sand-filling method for testing compaction in this patented technology relies on manual hand-cranking of a lever to rotate the auger bit. If the ground is hard, manual digging is very laborious, and the inconsistent rotation frequency of the auger bit due to manual digging affects the efficiency. Therefore, we need a sand-filling method for testing compaction. Utility Model Content

[0006] The purpose of this utility model is to provide a tool for digging holes using the sand-filling method to test compaction, in order to solve the problem that the tool for digging holes using the sand-filling method to test compaction in the patented technology mentioned in the background art relies on manual hand-cranking of a handle to rotate the auger drill bit, thereby completing the digging work. If the ground is hard, manual digging is very laborious, and manual digging will cause inconsistent rotation frequency of the auger drill bit, which will affect the efficiency of digging.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tool for digging holes to test compaction degree using the sand filling method includes a conveying pipe, a base fixedly connected to the bottom of the conveying pipe, a hole-digging component installed on the top of the conveying pipe, and a sand screening component provided on the top of the base.

[0009] The hole-digging assembly includes a motor, the output end of which is detachably connected to a lead screw via a coupling, and one end of the lead screw is provided with an auger. A fixing plate is threadedly connected to the outer wall of the lead screw, and a fixing sleeve is provided on the outer surface of the motor. A connecting rod is fixedly connected to one side of the fixing sleeve, and a sliding ring is provided at one end of the connecting rod. A sliding rod is slidably connected to the inner wall of the sliding ring.

[0010] The sand screening assembly includes a sand screening box, a fixing block is fixedly connected to the inner wall of the sand screening box, and a spring is provided on the top of the fixing block. A screen is installed on the top of the spring. A rocker arm is provided on one side of the sand screening box, and a rotating rod is rotatably connected to one side of the rocker arm. A striking block is fixedly connected to one end of the rotating rod.

[0011] Preferably, a discharge port is provided on one side of the conveying pipe, and a support rod is fixedly connected to the top of the base.

[0012] Preferably, the motor forms a rotating structure with an auger via a lead screw, and the auger is installed inside the conveying pipe.

[0013] Preferably, the motor is fixed by a fixing sleeve and a connecting rod to form a fixed structure, and there are two connecting rods. The fixing sleeve is fixed by a connecting rod and a sliding ring to form a fixed structure.

[0014] Preferably, the connecting rod forms a sliding structure with the sliding rod via a sliding ring, and there are two sliding rods.

[0015] Preferably, the sand screening box is fixed by a fixing block and a spring, and the spring is installed inside the sand screening box. The fixing block and the screen are elastically connected by the spring.

[0016] Preferably, the sand screening box forms a rotating structure through a rocker arm and a rotating rod, and the shape and size of the inner wall of the sand screening box match the shape and size of the rotating rod. The rocker arm forms a rotating structure through the rotating rod and the striking block.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this sand-filling method for testing compaction is a hole-digging tool.

[0018] Firstly, this utility model includes a motor, a lead screw, an auger, a fixing plate, a fixing sleeve, a connecting rod, a sliding ring, and a sliding rod. The motor rotates, driving the lead screw to rotate, which in turn drives the auger to rotate. The fixing plate allows the lead screw to move up and down, causing the auger to move. When it rotates downwards, it can drill holes in the ground. The motor is fixed by the fixing sleeve. The connecting rod and the sliding ring allow the motor to move up and down synchronously with the lead screw. The sliding of the sliding ring and the sliding rod maintains balance, ensuring that the motor does not rotate while the auger rotates, but the motor moves up and down synchronously with the lead screw and auger. This component greatly saves manpower and improves work efficiency during digging.

[0019] Secondly, this utility model is equipped with a sand screening box, a fixed block, a spring, a screen, a rocker arm, a rotating rod, and a striking block. During excavation, the auger rotates inside the conveying pipe to bring out the underground sand and soil, which is discharged from the outlet into the sand screening box. At the same time, the rocker arm rotates, which in turn drives the rotating rod to rotate. The rotating rod then drives the striking block to rotate synchronously, so that the striking block continuously strikes the screen through rotation. The screen vibrates due to the elasticity of the spring, thus screening the sand and soil on the screen. This component can effectively screen sand and soil, increasing the accuracy of the measurement results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the motor and auger structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the spring and screen structure of this utility model.

[0024] In the diagram: 1. Conveying pipe; 2. Base; 3. Digging assembly; 301. Motor; 302. Lead screw; 303. Screw; 304. Fixing plate; 305. Fixing sleeve; 306. Connecting rod; 307. Sliding ring; 308. Sliding rod; 4. Discharge port; 5. Support rod; 6. Sand screening assembly; 601. Sand screening box; 602. Fixing block; 603. Spring; 604. Screen; 605. Rocker arm; 606. Rotating rod; 607. Impact block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A sand-filling method for testing compaction degree includes a conveying pipe 1, a base 2 fixedly connected to the bottom of the conveying pipe 1, a digging component 3 installed on the top of the conveying pipe 1, and a sand screening component 6 set on the top of the base 2.

[0027] The hole-digging assembly 3 includes a motor 301. The output end of the motor 301 is detachably connected to a lead screw 302 via a coupling. One end of the lead screw 302 is provided with an auger 303. A fixing plate 304 is threadedly connected to the outer wall of the lead screw 302. A fixing sleeve 305 is provided on the outer surface of the motor 301. A connecting rod 306 is fixedly connected to one side of the fixing sleeve 305. A sliding ring 307 is provided at one end of the connecting rod 306. A sliding rod 308 is slidably connected to the inner wall of the sliding ring 307.

[0028] The sand screening assembly 6 includes a sand screening box 601. A fixing block 602 is fixedly connected to the inner wall of the sand screening box 601, and a spring 603 is provided on the top of the fixing block 602. A screen 604 is installed on the top of the spring 603. A rocker arm 605 is provided on one side of the sand screening box 601, and a rotating rod 606 is rotatably connected to one side of the rocker arm 605. A striking block 607 is fixedly connected to one end of the rotating rod 606.

[0029] Through the above technical solution, the rotation of motor 301 drives the lead screw 302 to rotate, which in turn drives the auger 303 to rotate. The fixed plate 304 allows the lead screw 302 to drive the auger 303 to rise and fall when rotating. When it rotates downwards, it can drill holes in the ground. Motor 301 is fixed by a fixed sleeve 305. The connecting rod 306 and sliding ring 307 allow motor 301 to rise and fall synchronously with lead screw 302. The sliding of sliding ring 307 and sliding rod 308 plays a role in maintaining balance, so that when lead screw 302 rotates, motor 301 does not rotate while auger 303 rotates. However, motor 301 can follow lead screw 302 and auger 303 to rise and fall synchronously. The setting of this component can greatly save manpower and improve work efficiency when digging holes.

[0030] Specifically, a discharge port 4 is provided on one side of the conveying pipe 1, and a support rod 5 is fixedly connected to the top of the base 2.

[0031] Through the above technical solution, the sand excavated by the digging component 3 can be discharged through the discharge port 4, which facilitates the acquisition of the sand to be measured for measurement. The setting of the support rod 5 can increase the stability of the conveying pipe 1, so that it can remain stable during operation.

[0032] Specifically, the motor 301 forms a rotating structure with the screw 302 and the auger 303, and the auger 303 is installed inside the conveying pipe 1.

[0033] Through the above technical solution, the motor 301 rotates to drive the lead screw 302 to rotate, thereby driving the auger 303 to rotate. When the auger 303 rotates, it can drill holes and dig holes in the ground. The excavated sand and soil are carried out through the rotating conveying pipe 1 by the auger 303, which also facilitates the measurement of the sand and soil.

[0034] Specifically, the motor 301 is fixed by the fixed sleeve 305 and the connecting rod 306, and there are two connecting rods 306. The fixed sleeve 305 is fixed by the connecting rod 306 and the sliding ring 307.

[0035] With the above technical solution, the motor 301 is fixedly installed inside the fixed sleeve 305 and fixedly connected to the sliding ring 307 through the connecting rod 306. This setting can provide a fixing effect for the motor 301, so that it drives the lead screw 302 to rotate when it is running, while the motor 301 itself will not rotate, thus achieving a fixing effect.

[0036] Specifically, the connecting rod 306 forms a sliding structure with the sliding rod 308 through the sliding ring 307, and there are two sliding rods 308.

[0037] With the above technical solution, when the motor 301 drives the lead screw 302 to rotate, after passing through the fixed plate 304, the lead screw 302 and the auger 303 will rotate and descend synchronously, thereby realizing the function of drilling and excavating. The sliding ring 307 and the sliding rod 308 can make the motor 301 descend synchronously, and it can also remain stable while descending, so that the motor 301 itself will not rotate, thus playing the role of assisting the motor 301 in lifting and lowering.

[0038] Specifically, the sand screening box 601 is fixed by the fixing block 602 and the spring 603, and the spring 603 is installed inside the sand screening box 601. The fixing block 602 and the screen 604 are elastically connected by the spring 603.

[0039] Through the above technical solution, the sand will fall onto the screen 604 after entering the sand screening box 601. The vibration generated by the elasticity of the spring 603 can screen the sand on the screen 604, thereby achieving the function of accurate measurement results.

[0040] Specifically, the sand screening box 601 forms a rotating structure through the rocker arm 605 and the rotating rod 606, and the shape and size of the inner wall of the sand screening box 601 match the shape and size of the rotating rod 606. The rocker arm 605 forms a rotating structure with the striking block 607 through the rotating rod 606.

[0041] With the above technical solution, as the sand falls onto the screen 604, the rocker arm 605 is turned by hand. The rotation of the rocker arm 605 drives the rotating rod 606 to rotate, which in turn drives the striking block 607 to rotate and strike the screen 604. Through the striking of the striking block 607 and the elasticity of the spring 603, the screen 604 can be made to vibrate continuously, thus achieving the effect of screening the sand and making the measurement data more accurate.

[0042] Working Principle: When using this sand-filling method to test compaction and excavate holes, the motor 301 is first manually started. The rotation of the motor 301 drives the lead screw 302, which in turn drives the auger 303. As the lead screw 302 rotates, it descends via the fixed plate 304, causing the auger 303 to descend and rotate synchronously, thus performing the excavation work. Simultaneously, the motor 301, secured by the fixed sleeve 305 and connecting rod 306, slides up and down on the sliding rod 308 via the sliding ring 307, achieving synchronous lifting and lowering. The motor 301 itself does not rotate. This allows drilling to be completed as the auger 303 descends. The hole is dug, and the auger 303 rotates inside the conveying pipe 1 to bring up the dug sand, which is then discharged into the sand screening box 601 through the discharge port 4. When the sand falls onto the screen 604, the rocker arm 605 is turned by hand, which drives the rotating rod 606 to rotate, thereby causing the striking block 607 to rotate and strike the screen 604. After being struck, the screen 604 rebounds due to the elasticity of the spring 603, which causes the screen 604 to vibrate and screen the sand that falls on it. This allows for accurate measurement of the sand inside the sand screening box 601, thus completing the entire work. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hole digging tool for use in a sand cone test for determining the degree of compaction, comprising a delivery tube (1), characterised in that: The bottom of the conveying pipe (1) is fixedly connected with a base (2), the top of the conveying pipe (1) is provided with a hole digging assembly (3), and the top of the base (2) is provided with a sand screening assembly (6). The hole digging assembly (3) comprises a motor (301), the output end of the motor (301) is detachably connected with a lead screw (302) through a shaft coupling, one end of the lead screw (302) is provided with an auger (303), the outer wall of the lead screw (302) is threadedly connected with a fixed plate (304), the outer surface of the motor (301) is provided with a fixed sleeve (305), one side of the fixed sleeve (305) is fixedly connected with a connecting rod (306), one end of the connecting rod (306) is provided with a sliding ring (307), and the inner wall of the sliding ring (307) is slidably connected with a sliding rod (308). The sand screening assembly (6) comprises a sand screening box (601), the inner wall of the sand screening box (601) is fixedly connected with a fixed block (602), the top of the fixed block (602) is provided with a spring (603), the top of the spring (603) is provided with a screen (604), one side of the sand screening box (601) is provided with a rocker (605), one side of the rocker (605) is rotatably connected with a rotating rod (606), and one end of the rotating rod (606) is fixedly connected with a hitting block (607).

2. A voiding tool for use in a sand cone test to determine the degree of compaction according to claim 1, wherein: One side of the conveying pipe (1) is provided with a discharge port (4), and the top of the base (2) is fixedly connected with a supporting rod (5).

3. A voiding tool for use in a sand cone test to determine the degree of compaction according to claim 1, wherein: The motor (301) and the auger (303) constitute a rotating structure through the lead screw (302), and the auger (303) is installed in the conveying pipe (1).

4. The hole digging tool for detecting the degree of compaction by sand replacement method according to claim 1, wherein: The motor (301) and the connecting rod (306) constitute a fixed structure through the fixed sleeve (305), and the number of the connecting rod (306) is two.

5. The hole digging tool for detecting the degree of compaction by sand replacement method according to claim 1, wherein: The connecting rod (306) and the sliding rod (308) constitute a sliding structure through the sliding ring (307), and the number of the sliding rod (308) is two.

6. A voiding tool for use in a sand cone test to determine the degree of compaction according to claim 1, wherein: The sand screening box (601) and the spring (603) constitute a fixed structure through the fixed block (602), and the spring (603) is installed in the sand screening box (601), and the fixed block (602) and the screen (604) constitute an elastic structure through the spring (603).

7. A voiding tool for use in a sand cone test to determine the degree of compaction according to claim 1, wherein: The sand screening box (601) and the rotating rod (606) constitute a rotating structure through the rocker (605), and the shape and size of the inner wall of the sand screening box (601) are matched with the shape and size of the rotating rod (606), and the rocker (605) and the hitting block (607) constitute a rotating structure through the rotating rod (606).

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