A highway roadbed strength detection sampling device

Abstract

The utility model relates to roadbed sampling technical field, and disclose a kind of highway roadbed strength detection sampling device, including vertical rod, further include: the bottom plate of being installed in vertical rod bottom, the bottom plate is equipped with the collection component of sample collection, the outside of vertical rod is slidably installed with the weight that sample is further collected to bottom plate and collection component hammering;Elastic component is installed between vertical rod and bottom plate to make weight rebound;The utility model does not need external power, only relies on weight free fall and the elasticity of elastic component to realize sampling, greatly reduce equipment cost input, sampling, only need to insert collection component to ground, move weight to upper portion of vertical rod and limit by limiting component, after unlocking, weight free fall ramming collection component, utilize elastic component automatic rebound, repeated operation can complete sampling. The whole process is easy to operate, without external power and a lot of physical effort consumption, ordinary personnel can quickly operate.

Description

Technical Field

[0001] This utility model relates to the field of roadbed sampling technology, specifically a roadbed strength testing sampling device. Background Technology

[0002] Subgrade compaction degree is a quality control indicator for earthwork projects. First, a soil sample before compaction is sent to the laboratory to determine its dry density at its optimum moisture content; this is the maximum dry density of the sample. Then, a sample after compaction is taken to determine its actual dry density. Dividing the actual dry density by the maximum dry density gives the actual compaction degree of the soil. Comparing this number with the compaction degree specified in the standard allows us to determine whether the soil compaction degree has met the quality standard.

[0003] Currently, most roadbed soil sampling operations involve placing a ring cutter on a leveled surface, placing a directional tube over the ring cutter, and then using a rubber mallet to strike the directional tube vertically and evenly until the ring cutter is fully embedded in the soil. However, if the ground is not smooth, the ring cutter is prone to tilting during the striking process, leading to sampling failure and requiring readjustment and re-operation, increasing workload. Furthermore, striking the directional tube with a rubber mallet is a continuous and strenuous process. Due to the limited elasticity of the rubber mallet, the impact force generated with each strike is relatively small. To fully embed the ring cutter into the soil, operators need to swing the mallet for extended periods at a high frequency. This not only causes rapid fatigue in the operator's arms and shoulders but also leads to body aches and pains after prolonged operation, increasing labor intensity and reducing work efficiency. The difficulty and labor intensity increase exponentially, especially when dealing with harder roadbed soil. Utility Model Content

[0004] The purpose of this invention is to provide a highway subgrade strength testing sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highway subgrade strength testing sampling device, comprising a vertical rod, and further comprising: A base plate is installed at the bottom of the vertical pole, and a sample collection component is installed at the bottom of the base plate. A heavy hammer is slidably installed on the outside of the vertical pole to strike the base plate and the sample collection component to collect samples. An elastic component installed between the vertical rod and the base plate to allow the counterweight to rebound, wherein a limiting component for limiting the position of the counterweight is installed on the vertical rod.

[0006] Preferably, the acquisition component includes a first insert plate fixedly installed at the bottom of the base plate, and a second insert plate rotatably installed on the first insert plate.

[0007] Preferably, the elastic component includes a rubber sleeve fixedly installed on the top of the base plate, and a spring is fixedly installed at the bottom of the vertical rod. The bottom of the spring is fixedly installed on the top of the base plate and is installed in the rubber sleeve.

[0008] Preferably, the limiting assembly includes a fixed housing fixedly installed on the top of the vertical rod, a limiting rod rotatably installed inside the fixed housing, a second spring fixedly installed between the limiting rod and the fixed housing, an adjusting rod fixedly installed on the top of the limiting rod, and a limiting platform fixedly installed on the top of the counterweight.

[0009] Preferably, a wristband is fixedly installed on the outer side of the hammer.

[0010] Preferably, a grip rod is fixedly installed on the top of the fixed shell, and a handle is fixedly installed on the top of the base plate.

[0011] Preferably, a connecting rod is rotatably mounted on the adjusting rod, a rod body is rotatably mounted on the bottom of the connecting rod, a limit plate is rotatably mounted on the bottom of the rod body, and a fixing plate is fixedly mounted on the bottom of the rod body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention requires no external power, relying solely on the free fall of a hammer and the elastic force of an elastic component to achieve sampling, significantly reducing equipment costs. During sampling, simply insert the sampling component into the foundation, move the hammer to the top of the vertical rod and limit it using a limiting component, then unlock it and let the hammer fall freely to strike the sampling component. The elastic component automatically rebounds, and this process can be repeated to complete the sampling. The entire process is simple to operate, requiring no external power or significant physical exertion, and can be quickly mastered by ordinary personnel. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of the highway subgrade strength testing sampling device provided by this utility model; Figure 2 This is a schematic diagram of the acquisition component and the elastic component provided by this utility model; Figure 3 A schematic diagram of the fixed shell structure provided by this utility model; Figure 4 A schematic diagram of the limiting component structure provided by this utility model; Figure 5 A schematic diagram of the counterweight structure provided by this utility model; Figure 6 for Figure 3 A magnified structural diagram of point A in the middle.

[0014] In the diagram: 1. Vertical rod; 2. Base plate; 3. Data acquisition component; 31. Insert plate one; 32. Insert plate two; 4. Counterweight; 5. Elastic component; 51. Rubber sleeve; 52. Spring one; 6. Limiting component; 61. Fixing shell; 62. Limiting rod; 63. Spring two; 64. Adjusting rod; 65. Limiting platform; 7. Grip rod; 8. Handle; 9. Wrist ring; 10. Connecting rod; 11. Rod body; 12. Limiting plate; 13. Fixing plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 As shown, a highway subgrade strength testing sampling device includes a vertical rod 1, and further includes: a base plate 2 installed at the bottom of the vertical rod 1, a sampling component 3 installed at the bottom of the base plate 2, a hammer 4 slidably installed on the outside of the vertical rod 1 to hammer the base plate 2 and the sampling component 3 for sampling; an elastic component 5 installed between the vertical rod 1 and the base plate 2 to cause the hammer 4 to rebound, and a limiting component 6 installed on the vertical rod 1 to limit the movement of the hammer 4.

[0017] During sampling, the sampling component 3 is vertically inserted into the foundation. The hammer 4 is moved to the top of the vertical rod 1 and limited to the upper part of the vertical rod 1 by the limiting component 6. Then, the limiting component 6 is unlocked to release the hammer 4, which falls freely and impacts the base plate 2 and the sampling component 3, causing the sampling component 3 to penetrate deep into the foundation for sampling. After the hammer 4 falls and contacts the elastic component 5, it automatically bounces back to the top. The limiting component 6 is then used to limit it again and then unlocked. After repeating this process several times, the sampling component 3 is fully inserted into the foundation for sampling.

[0018] Based on the above implementation scheme, the acquisition component 3 includes a first insertion plate 31 fixedly installed at the bottom of the base plate 2, and a second insertion plate 32 rotatably installed on the first insertion plate 31; the bottoms of the first insertion plate 31 and the second insertion plate 32 are both conical, which facilitates insertion into the foundation.

[0019] Insert plate 1 31 and insert plate 2 32 are joined together when inserted into the foundation to collect the soil sample inside. After the insert plate is removed, insert plate 2 32 is flipped over to facilitate the removal of the soil sample.

[0020] Based on the above implementation scheme, the elastic component 5 includes a rubber sleeve 51 fixedly installed on the top of the base plate 2, a spring 52 fixedly installed on the bottom of the vertical rod 1, the bottom of the spring 52 fixedly installed on the top of the base plate 2 and installed in the rubber sleeve 51; the bottom of the rubber sleeve 51 is fixedly installed on the base plate 2, the bottom of the vertical rod 1 is fixedly installed on the top of the rubber sleeve 51, and the two ends of the spring 52 are fixedly connected to the bottom of the vertical rod 1 and the top of the base plate 2 respectively, and the rubber sleeve 51 protects the spring 52 inside.

[0021] After the hammer 4 falls and contacts the bottom of the vertical rod 1, it presses down the spring 52 and the rubber sleeve 51. The elastic force of the spring 52 causes the hammer 4 to automatically rebound upward and move to the upper part of the vertical rod 1 to store power for the next fall.

[0022] Based on the above implementation scheme, the limiting component 6 includes a fixed shell 61 fixedly installed on the top of the vertical rod 1, a limiting rod 62 rotatably installed inside the fixed shell 61, a spring 63 fixedly installed between the limiting rod 62 and the fixed shell 61, an adjusting rod 64 fixedly installed on the top of the limiting rod 62, and a limiting platform 65 fixedly installed on the top of the counterweight 4; the bottom of the limiting rod 62 has a hook, and the upper part of the limiting platform 65 has rounded corners.

[0023] When the hammer 4 moves upward, the rounded corner at the top of the limiting platform 65 passes through the hook at the bottom of the adjusting rod 64, pushing it outward. When the bottom of the limiting platform 65 contacts the hook, the spring 63 resets and hooks the hook at the bottom of the limiting platform 65, limiting the hammer 4. The adjusting rod 64 is then moved towards the side closer to the fixed shell 61. Through the lever principle, the bottom of the limiting rod 62 moves outward, separating from the limiting platform 65 and losing its limitation on the hammer 4, allowing the hammer 4 to fall freely. Since the hammer 4 loses some kinetic energy after rebounding, it will not rebound to the limiting rod 62. At this time, it is only necessary to manually lift the rebounding hammer 4 upward and lock it onto the limiting rod 62. The operator can easily complete this operation without expending much force. Compared with hammering the sampling knife with a rubber hammer, this improves work efficiency and reduces the labor intensity during operation.

[0024] Based on the above implementation scheme, a wristband 9 is fixedly installed on the outer side of the hammer 4; a grip 7 is fixedly installed on the top of the fixed shell 61; and a handle 8 is fixedly installed on the top of the base plate 2.

[0025] The wristband 9 facilitates the user's movement of the hammer 4, the grip 7 facilitates the user's support of the vertical bar 1, and the handle 8 facilitates the movement of the base plate 2 and the entire device.

[0026] Based on the above implementation scheme, a connecting rod 10 is rotatably mounted on the adjusting rod 64, a rod body 11 is rotatably mounted on the bottom of the connecting rod 10, a limiting plate 12 is rotatably mounted on the bottom of the rod body 11, and a fixing plate 13 is fixedly mounted on the bottom of the rod body 11; the fixing plate 13 is located at the bottom of the limiting plate 12, so that the limiting plate 12 can only be flipped upwards and not downwards, and the end of the rod body 11 is slidably mounted on the fixed shell 61 through a bracket.

[0027] When the adjusting rod 64 flips upward to release the hammer 4, it drives the connecting rod 10 and the rod body 11 to flip upward simultaneously, so that the limiting plate 12 is away from the vertical rod 1 and will not affect the falling of the hammer 4. After the adjusting rod 64 is released, the rod body 11 returns to its original position. When the hammer 4 rebounds, the outer wristband 9 flips the limiting plate 12 upward. If the user does not grab the hammer 4 in time, the limiting plate 12 will limit the hammer 4, so that the hammer 4 will not fall to the bottom. The user does not need to go down to grab the hammer 4, saving working time and improving work efficiency.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] 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 can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for testing the strength of a highway subgrade, comprising a vertical rod (1), characterized in that, Also includes: A base plate (2) is installed at the bottom of the vertical rod (1), and a sample collection component (3) is installed at the bottom of the base plate (2). A heavy hammer (4) is slidably installed on the outside of the vertical rod (1) to hammer the base plate (2) and the sample collection component (3) to collect samples. An elastic component (5) is installed between the vertical rod (1) and the base plate (2) to cause the weight (4) to rebound, and a limiting component (6) for limiting the weight (4) is installed on the vertical rod (1).

2. The highway subgrade strength testing sampling device according to claim 1, characterized in that: The acquisition component (3) includes a first insert plate (31) fixedly installed at the bottom of the base plate (2), and a second insert plate (32) rotatably installed on the first insert plate (31).

3. The highway subgrade strength testing sampling device according to claim 1, characterized in that: The elastic component (5) includes a rubber sleeve (51) fixedly installed on the top of the base plate (2), and a spring (52) fixedly installed on the bottom of the vertical rod (1). The bottom of the spring (52) is fixedly installed on the top of the base plate (2) and installed in the rubber sleeve (51).

4. The highway subgrade strength testing sampling device according to claim 1, characterized in that: The limiting assembly (6) includes a fixed shell (61) fixedly installed on the top of the vertical rod (1), a limiting rod (62) is rotatably installed inside the fixed shell (61), a spring (63) is fixedly installed between the limiting rod (62) and the fixed shell (61), an adjusting rod (64) is fixedly installed on the top of the limiting rod (62), and a limiting platform (65) is fixedly installed on the top of the counterweight (4).

5. The highway subgrade strength testing sampling device according to claim 1, characterized in that: A wristband (9) is fixedly installed on the outside of the hammer (4).

6. The highway subgrade strength testing sampling device according to claim 4, characterized in that: A handle (7) is fixedly installed on the top of the fixed shell (61), and a handle (8) is fixedly installed on the top of the base plate (2).

7. A highway subgrade strength testing sampling device according to claim 4, characterized in that: A connecting rod (10) is rotatably mounted on the adjusting rod (64), a rod body (11) is rotatably mounted on the bottom of the connecting rod (10), a limiting plate (12) is rotatably mounted on the bottom of the rod body (11), and a fixing plate (13) is fixedly mounted on the bottom of the rod body (11).

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