Direct push type soil sampling equipment

Abstract

The utility model discloses direct-push type soil sampling equipment, which relates to the technical field of soil sampling and comprises a front guide rail and a rear guide rail, a carriage assembly is in sliding fit with the front guide rail and the rear guide rail, a telescopic oil cylinder is arranged on the front guide rail and the rear guide rail, the output end of the telescopic oil cylinder is fixedly connected with the side wall of the carriage assembly, and a power head fixing frame is fixedly arranged on the carriage assembly. The power head fixing frame is provided with a spiral power head, the bottom of the spiral power head is provided with a spiral drilling tool, the telescopic oil cylinder, the front-back guide rail, the spiral power head and the impactor are arranged, so that the sliding frame assembly drives the spiral power head to linearly move along the front-back guide rail, and meanwhile, the bottom impactor works; the drill bit cuts into the stratum in a vertical track under dual power superposition, so that sampling is facilitated, impact force can be accurately controlled, severe compression of a soil sample is avoided, damage to original structural layers of soil is reduced, sampling time is shortened, severe abrasion or deformation of a sampling pipe is prevented, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically to a direct-push soil sampling device. Background Technology

[0002] In fields such as soil environmental surveys and geological exploration, soil sampling is a crucial means of obtaining information about subsurface soil. Traditional soil sampling methods mainly rely on manual hammering, mechanical impact, or rotary propulsion. However, these traditional sampling techniques have revealed many problems in practical applications, limiting the efficiency, quality, and operational safety of soil sampling.

[0003] Existing soil sampling equipment uses manual hammering or mechanical impact, making it difficult to precisely control the impact force. In loose or cohesive soil layers, excessive impact force can severely compress the soil sample, destroying the original soil structure and making the sample layering unclear. This makes it impossible to accurately reflect the true condition of the underground soil, posing difficulties for subsequent analysis and evaluation. When encountering hard strata such as hard rock or calcareous nodule layers, the propulsion efficiency of soil sampling equipment drops sharply. To continue sampling, repeated impact operations are often required, which not only increases sampling time but also causes severe wear or deformation of the sampling tube, reducing the service life of the equipment and increasing sampling costs. Utility Model Content

[0004] The purpose of this invention is to provide a direct-push soil sampling device to solve the problem that existing soil sampling devices are difficult to control the impact force precisely, resulting in blurred sample stratification, failure to accurately reflect the true condition of the underground soil, and easy to cause severe wear or deformation of the sampling tube, thus reducing the service life of the device.

[0005] A direct-push soil sampling device includes front and rear guide rails. The side walls of the front and rear guide rails are provided with a main beam and a hydraulic winch. The top of the main beam is provided with a boom. The boom is provided with two guide wheels. A carriage assembly is slidably fitted on the front and rear guide rails. A telescopic cylinder is provided on the front and rear guide rails. The output end of the telescopic cylinder is fixedly connected to the side wall of the carriage assembly. A power head fixing frame is fixedly provided on the carriage assembly. A spiral power head is provided on the power head fixing frame. A spiral drill bit is provided at the bottom of the spiral power head.

[0006] Preferably, an impactor is provided on the carriage assembly below the helical power head, and a sampler is installed at the end of the impactor.

[0007] Preferably, the bottom of the carriage assembly is provided with a tube puller located below the impactor.

[0008] Preferably, the bottom of the carriage assembly is fixedly provided with a fixed base.

[0009] Preferably, the slide assembly has a drill arm emergency stop assembly on its side wall, and an operating box is fixedly installed on the side wall of the slide assembly near the drill arm emergency stop assembly.

[0010] Preferably, the side wall of the carriage assembly is provided with an oil pipe bracket, a reinforcing plate is fixed on the oil pipe bracket, and multiple through holes for oil supply pipes to pass through are opened on the oil pipe bracket.

[0011] Preferably, the carriage assembly has a compensation frame on its back, and the carriage assembly has a tilting frame via the compensation frame.

[0012] The advantages of this utility model are as follows: This utility model provides a direct-push soil sampling device. By setting up a telescopic cylinder, front and rear guide rails, a spiral power head, and an impactor, the slide assembly drives the spiral power head to move linearly along the front and rear guide rails. At the same time, the bottom impactor works. With the superposition of dual power, the drill bit cuts into the stratum with a vertical trajectory, which facilitates sampling. It can precisely control the impact force, avoid causing severe compression of the soil sample, reduce damage to the original structure and layers of the soil, make the sample layer clear, accurately reflect the true condition of the underground soil, reduce sampling time, prevent severe wear or deformation of the sampling tube, and extend the service life of the equipment. Attached Figure Description

[0013] Figure 1 , 2 Figures 3 and 4 are structural schematic diagrams of this utility model from different perspectives.

[0014] Among them, 100 is the main beam; 101 is the telescopic cylinder; 102 is the front and rear guide rails; 103 is the hydraulic winch; 104 is the boom; 105 is the guide wheel; 106 is the oil pipe support; 107 is the reinforcing plate; 108 is the auger power head; 109 is the power head fixing frame; 110 is the slide assembly; 111 is the fixed base; 112 is the pipe puller; 113 is the impactor; 114 is the control box; 115 is the drill arm emergency stop assembly; 116 is the tilting frame; and 117 is the compensation frame. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figures 1 to 4As shown, a direct-push soil sampling device includes front and rear guide rails 102. A main beam 100 and a hydraulic winch 103 are provided on the side walls of the front and rear guide rails 102. A boom 104 is provided on the top of the main beam 100, and two guide wheels 105 are provided in the boom 104. A slide assembly 110 is slidably fitted on the front and rear guide rails 102. A telescopic cylinder 101 is provided on the front and rear guide rails 102, and the output end of the telescopic cylinder 101 is fixedly connected to the side wall of the slide assembly 110. A power head fixing frame 109 is fixedly provided on the slide assembly 110, and a spiral power head 108 is provided on the power head fixing frame 109. A spiral drill bit is provided at the bottom of the spiral power head 108. An impactor 113 is provided on the slide assembly 110 below the spiral power head 108, and a sampler is installed at the end of the impactor 113. A fixed base 111 is fixedly provided at the bottom of the slide assembly 110.

[0017] In the operation of the direct-push soil sampling equipment, the front and rear guide rails 102 serve as the core guiding mechanism throughout the entire process. After the front and rear guide rails 102 are rigidly connected to the fixed base 111, the slide assembly 110 is precisely engaged with the guide rails through four sets of high-precision sliders, forming a vertical motion constraint system. Activating the telescopic cylinder 101 pushes the slide assembly 110 to move linearly along the front and rear guide rails 102. At this time, the power head mounting bracket 109 fixed on the slide assembly 110 moves synchronously, and its hydraulic motor drives the spiral power head 108 to rotate at high speed. Simultaneously, the vibration module of the bottom impactor 113 begins to operate. Under the combined power of these two forces, the drill bit cuts into the strata with a vertical trajectory, facilitating sampling. It allows for precise control of the impact force, avoiding severe compression of the soil sample, reducing damage to the original soil structure, resulting in clear sample stratification, accurately reflecting the true condition of the underground soil, reducing sampling time, preventing severe wear or deformation of the sampling tube, and extending the service life of the equipment.

[0018] In this embodiment, a tube puller 112 is provided at the bottom of the carriage assembly 110 below the impactor 113.

[0019] After sampling is completed, the tube puller 112 uses hydraulic jaws to clamp the sampling tube and pull it out of the impactor 113. The slide assembly 110 is lifted in the opposite direction under the guidance of the front and rear guide rails 102, which enhances the convenience and flexibility of the equipment.

[0020] In this embodiment, the slide assembly 110 has a drill arm emergency stop assembly 115 on its side wall, and an operation box 114 is fixedly installed on the side wall of the slide assembly 110 near the drill arm emergency stop assembly 115. The slide assembly 110 has a compensation frame 117 on its back, and the slide assembly 110 has a tilting frame 116 through the compensation frame 117.

[0021] By using the drill arm emergency stop assembly 115 to monitor displacement data in real time, when encountering sudden changes in rock formation or overload, the electromagnetic brake instantly locks the anti-slip frame assembly 110, and the elastic damping structure of the compensation frame 117 absorbs the inertial impact, which can realize the drill arm emergency stop function, cut off the power supply, and end the operation, ensuring that the machinery will not be damaged or reducing losses. The tilting frame 116 can tilt the entire equipment and rotate it backward, reducing the space occupied by the equipment and reducing the risk of equipment damage.

[0022] In this embodiment, the side wall of the carriage assembly 110 is provided with an oil pipe bracket 106, a reinforcing plate 107 is fixedly provided on the oil pipe bracket 106, and multiple through holes for oil supply pipes to pass through are provided on the oil pipe bracket 106.

[0023] The oil pipes are placed on the oil pipe support 106. The oil pipe support 106 uses color marks to manage the hydraulic lines, preventing multiple oil pipes from getting tangled and interfering when the carriage assembly 110 moves. This ensures the system's response speed and motion synchronization. It not only allows for a direct observation of which equipment each oil pipe is powering, but also improves aesthetics and reduces the complexity of maintenance.

[0024] Working Process and Principle: During operation, after the front and rear guide rails 102 are rigidly connected to the fixed base 111, the slide assembly 110 precisely engages with the guide rails via four sets of high-precision sliders, forming a vertical motion constraint system. Activating the telescopic cylinder 101 pushes the slide assembly 110 to move linearly along the front and rear guide rails 102. Simultaneously, the power head mounting bracket 109 fixed to the slide assembly 110 moves synchronously, and its hydraulic motor drives the spiral power head 108 to rotate at high speed. At the same time, the vibration module of the bottom impactor 113 begins to operate. With the combined power, the drill bit cuts into the formation along a vertical trajectory, facilitating sampling and precisely controlling the impact force to avoid severe compression of the soil sample. During the lifting and lowering of the slide assembly 110, the drill arm emergency stop assembly 115 monitors the displacement data in real time. When encountering sudden changes in rock formation or overload, the electromagnetic brake activates. The slide assembly 110 is instantly locked, and the elastic damping structure of the compensation frame 117 absorbs the inertial impact, enabling the drill arm to stop suddenly. After sampling, the pipe puller 112 uses hydraulic jaws to clamp the sampling tube and pull it out of the impactor 113. The slide assembly 110 is lifted in the opposite direction under the guidance of the front and rear guide rails 102. The entire equipment can be flipped and rotated backward by the flipping frame 116, reducing the space occupied by the equipment. The oil pipe is placed on the oil pipe support 106. The oil pipe support 106 uses color marks to manage the hydraulic pipelines and prevent multiple oil pipes from getting tangled and interfering when the slide assembly 110 moves.

[0025] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A direct-push soil sampling apparatus, characterized by: The system includes front and rear guide rails (102), with a main beam (100) and a hydraulic winch (103) on the side wall of the front and rear guide rails (102). A boom (104) is provided on the top of the main beam (100), and two guide wheels (105) are provided in the boom (104). A carriage assembly (110) is slidably fitted on the front and rear guide rails (102). A telescopic cylinder (101) is provided on the front and rear guide rails (102), and the output end of the telescopic cylinder (101) is fixedly connected to the side wall of the carriage assembly (110). A power head fixing frame (109) is fixedly provided on the carriage assembly (110), and a spiral power head (108) is provided on the power head fixing frame (109). A spiral drill bit is provided at the bottom of the spiral power head (108).

2. A direct push soil sampling apparatus as defined in claim 1, wherein: An impactor (113) is provided on the carriage assembly (110) below the helical power head (108), and a sampler is installed at the end of the impactor (113).

3. A direct push soil sampling apparatus as defined in claim 2, wherein: The bottom of the carriage assembly (110) is provided with a tube puller (112) located below the impactor (113).

4. A direct push soil sampling apparatus as defined in claim 1, wherein: The bottom of the carriage assembly (110) is fixedly provided with a fixed base (111).

5. A direct push soil sampling apparatus as defined in claim 4, wherein: The slide assembly (110) has a drill arm emergency stop assembly (115) on its side wall, and an operation box (114) is fixedly installed on the side wall of the slide assembly (110) near the drill arm emergency stop assembly (115).

6. A direct push soil sampling apparatus as defined in claim 5, wherein: The slide assembly (110) has an oil pipe bracket (106) on its side wall. A reinforcing plate (107) is fixed on the oil pipe bracket (106). The oil pipe bracket (106) has multiple through holes through which oil supply pipes pass.

7. A direct push soil sampling apparatus as defined in claim 6, wherein: The carriage assembly (110) has a compensation frame (117) on its back, and the carriage assembly (110) has a flipping frame (116) via the compensation frame (117).

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