5results about How to "Low entry resistance" patented technology

The utility model discloses a shovel tooth combined type mud flat shellfish digging device with adjustable spacing, which relates to the technical field of mud flat shellfish digging operation, and comprises a cross beam and a plurality of digging shovels fixedly arranged on the cross beam, comb teeth are uniformly arranged among the digging shovels, the comb teeth are arranged on the cross beam, the spacing of the comb teeth is adjustable, and the shovel tooth combined type mud flat shellfish digging device is arranged on the cross beam. The digging shovel is provided with multiple types of protruding structures, and the comb teeth are designed to be of a gradually-changing-size structure. Due to the design of various protruding structures on the shovel body of the digging shovel, mud flat silt can be better cut during digging, soil entering resistance can be reduced, and soil adhesion is prevented. The comb teeth are of a size gradual change type structural design, the soil penetrating size is gradually changed during excavation, soil penetrating resistance can be reduced, and the hilling phenomenon is reduced. The digging shovel and the comb teeth are adopted for cooperative operation, the soil breaking capacity of the digging shovel can be kept, the soil penetrating resistance is reduced through the comb teeth, part of soil is screened out in the digging process, and the soil hilling phenomenon is reduced.

A stratified soil sampling device, relating to the technical field of soil sampling equipment, includes a positioning outer cylinder and a sampling inner cylinder rotatably installed within it. The positioning outer cylinder is equipped with a supporting base plate, a supporting top plate, and a transparent observation window. Three sets of auxiliary support frames are hinged to its outer periphery, working in conjunction with positioning pins to achieve stable positioning. Above the supporting top plate are a telescopic cylinder, a triangular lifting plate, and a transmission mechanism, driving the sampling inner cylinder to rotate and providing downward pressure. The lower end of the sampling inner cylinder is equipped with a soil-breaking cutting edge, and the internal sampling shaft drives a rotary blade to cut the soil. The sampling inner cylinder has a dispensing port, and the positioning outer cylinder has a dispensing limit seat. The supporting base plate has a discharge port and a baffle. This device provides stable positioning, efficient sampling, and allows for direct observation of soil stratification through the observation window. It enables independent collection of samples from different soil layers and facilitates convenient storage, effectively solving problems such as tilting, slow sampling, and sample mixing in existing devices. It is suitable for soil monitoring, geological surveys, and other scenarios.

The utility model discloses a kind of conductor shielding terminal annular array ground structure, the utility model relates to electrical engineering technical field, the utility model, comprising: connecting end, the outer wall of the connecting end is slidably connected with annular device, the annular device is locked by rotating mode, the bottom of the annular device is fixedly connected with grounding device, the annular device includes receiving end;By setting the cooperation of annular device and grounding device, the contact of the circumferential array arrangement in receiving end inner wall is slidably connected with connecting end, forms 360 ° full circumferential conductive passage, compared with traditional single-point grounding mode, contact area is improved by more than 3 times, lock ring is rotated 30 ° by dialing dial piece, the locking of connecting end and annular device can be completed, main sharp cone cooperates bulldozing block design, soil resistance is reduced, can directly penetrate clay layer with greater hardness;Sub sharp cone is automatically unfolded in soil extrusion during soil entering, forms umbrella-like grounding network, the purpose of equivalent grounding area expansion.

The utility model discloses a kind of soil sampling in-situ detection devices, including base, the base top is fixedly installed with support frame, the support frame surface is provided with driving assembly, the support frame is inside and is provided with first screw through driving assembly, the first screw surface is connected with moving plate threadedly, the moving plate top is provided with reciprocating movement component, the moving plate top is provided with toothed plate through reciprocating movement component, the toothed plate surface is engaged and is provided with driven gear, the driven gear inside is fixedly installed with sampling barrel, the sampling barrel inner wall top is fixedly installed with pin, the base top is provided with detection component, the sampling barrel inside is provided with removal component. Rotating action can effectively break the close connection between soil particles, like the rotation of drill bit when drilling, greatly reduce the soil resistance, make sampling process more smooth and fast, more sampling detection operations can be completed in the same time.

The invention relates to the technical field of soil loosening, and discloses a soil loosening device matched with a mini-tiller, which comprises a side plate, the end part of the side plate is connected with the mini-tiller, one end of the side plate close to the mini-tiller is rotatably connected with a main shaft, two ends of the main shaft are provided with walking wheels, one end of the side plate far away from the main shaft is rotatably connected with a rotating shaft, and the rotating shaft and the main shaft synchronously rotate. The device further comprises a soil loosening mechanism and a soil digging mechanism. The soil loosening mechanism is arranged on the side, close to the ground, of the side plate and comprises a cutter shaft rotationally connected with the side plate, and a plurality of soil loosening teeth are arranged in the middle of the cutter shaft; the soil digging mechanism comprises a cross rod fixedly connected with the side plates and a swing arm which deflects in a reciprocating mode with the cross rod as the center, and a rear throwing shovel is arranged at the end, close to the walking wheels, of the swing arm. The back throwing shovel which swings back and forth is additionally arranged on the front side of the advancing direction of the soil loosening teeth, the operation mode of digging first and then smashing is formed, and the problems that traditional soil loosening teeth are difficult to penetrate into hard soil and slip and idle are effectively solved.