42results about How to "Optimize the extraction process" patented technology

The invention discloses a multi-scale digital rock core rapid reconstruction method based on an agent model, and belongs to the field of digital rock core rapid reconstruction. According to the method, through combination of multiple steps and the model, all-around support is provided for construction of a multi-scale digital core, key links of data acquisition, feature extraction, model construction and multi-scale information fusion are covered, a basis is provided for reservoir physical property evaluation through accurate prediction of permeability, and the reservoir physical property evaluation accuracy is improved through combination of microscopic images and macroscopic attributes. Effective connection of cross-scale information is realized, finally, a digital core with a real microstructure is generated, and a high-fidelity data model is provided for oil-gas exploration.

The invention belongs to the technical field of ocean remote sensing and deep learning, and particularly relates to an SAR image ocean internal wave automatic extraction method which comprises the following steps: step 1, collecting SAR image data of a target sea area, and preprocessing the image, including radiation correction and geometric correction; 2, marking internal wave signals in the preprocessed SAR image in a manual marking mode, generating a truth value image used for deep learning model training, matching a truth value with an original image, randomly selecting four fifths of the truth value image as a training set, and randomly selecting the rest one fifths of the truth value image as a test set; by adopting the alpha-balanced cross-entropy loss function and the online data enhancement technology, the precision and efficiency of extracting the internal wave signal from the SAR image are effectively improved, especially under the complex imaging condition, the internal wave signal can be accurately extracted, high-precision geographic positioning of the internal wave signal is achieved by combining geographic information, and the method has the advantages of being high in accuracy and high in accuracy. The method is suitable for ocean research and high-precision environment monitoring, and has a wide application prospect.

The purpose of the present invention is to provide a bone extractor capable of easily extracting a bone such as a femoral head even in an operation such as an MIS. The present invention is provided with: a shaft part (12); a handle part (11) disposed on the base end side of the shaft part; a tapered screw part (20) that is formed on the tip side of the shaft part and tapers toward the tip side; and a blade edge portion (30) disposed on the tip side of the tapered screw portion. The present invention is provided with: a tapered screw section (21) in which a helical thread section (21) is formed on the surface of a shaft section (25), which is the shaft of the tapered screw section, and an insert blade section (32) which is a plate-shaped body (31) having a tapered tip side and which has a cutting edge (32) formed from a rake surface (34) formed at at least one lateral end; at least one surface on the base end side of the rake face is directly connected to the top surface on the front end side of the threaded part, or at least one surface on which the base end side of the rake face extends is directly connected to the top surface on the front end side of the threaded part.

The embodiment of the utility model provides an electric connection structure and electronic equipment, the electric connection structure comprises a plug, a socket and a key, one of the plug and the socket is provided with a first limiting structure, the other of the plug and the socket is provided with a buckle, and the plug and the socket are detachably connected through the buckle and the first limiting structure; the plug comprises a second electric connecting piece, and the socket comprises a first electric connecting piece; under the condition that the plug and the socket are plugged in a matched manner, the second electric connecting piece is electrically connected with the first electric connecting piece, and the buckle is clamped with the first limiting structure; the key is used for pushing the first limiting structure or the buckle to move, and limiting of the buckle by the first limiting structure is relieved by pressing the key. Limiting of the buckle by the first limiting structure can be relieved by pressing the key, so that the plug can be easily pulled out of the socket, and the problem that the plug and / or the socket are / is damaged when operation is improper is effectively avoided.

The invention relates to the technical field of bulletproof armor, in particular to a bionic ceramic armor module and a preparation method thereof. The bionic ceramic armor module comprises a plurality of ceramic bulletproof layers and nano energy-absorbing adhesive bonding layers which are stacked in a staggered mode, each ceramic bulletproof layer comprises a plurality of ceramic pieces, the ceramic pieces are arranged in order in an array mode, the ceramic pieces are tightly bonded through pouring of nano energy-absorbing adhesives to form single thin layers, and the single thin layers are sequentially stacked in a staggered mode; nano energy-absorbing glue is sprayed between every two layers of the single thin layers to form a nano energy-absorbing glue bonding layer, and the ceramic bulletproof layer and the nano energy-absorbing glue bonding layer form a composite whole. The bionic ceramic armor module is rigid and flexible, good in toughness, high in energy absorption density and light in weight, and the multi-time anti-penetration capacity is greatly improved. Different modules with different layer numbers, thicknesses, hardness, weights, size specifications and anti-penetration strengths can be programmed and designed according to actual purposes, and the application range is wide.

The invention discloses a water purifier sewage purification treatment device which comprises a water purifier, a water purification device installed on the back face of the water purifier and a power-on switch installed on the front face of the water purifier, a water guide mechanism is installed at the top of the water purification device, and the water guide mechanism can prevent filtered water in the water purification device from overflowing. The top of the water guide mechanism is provided with a return mechanism through a clutch mechanism, the return mechanism can assist the water guide mechanism in starting, the front face of the clutch mechanism is provided with a synchronizing mechanism, the right side of the synchronizing mechanism is provided with a driving mechanism, and the driving mechanism synchronizes rotation of the clutch mechanism through the synchronizing mechanism. By integrating water guide, clutch, return, synchronization, driving and automatic power-off structures, the quick and automatic process of replacing the filter element of the water purifier is realized, the production efficiency is remarkably improved, the labor cost is reduced, meanwhile, purified water is effectively prevented from overflowing, the operation safety is ensured, the design is ingenious, and daily operation and maintenance are facilitated.

The present invention provides a field microclimate automatic collection and receiving system, which relates to the field of climate collection and includes: a rain sensor; the rain sensor is installed at the top of a real-time collector, the bottom end of the rain sensor is connected to a bracket through a rotating shaft, the bracket is installed with a guide rod through a receiving plate, the bottom end of the guide rod of the external set is connected to a traction rope 1 by a spring, and the top end of the guide rod is fixedly connected to an insertion block of a U-shaped structure. When it rains frequently and repeatedly, in the interval when the rain stops, or after the data transmission is completed, the traction rope 1 is pulled to release the fixation of the rain sensor, the rain sensor flips forward, and the rainwater remaining inside is discharged, and the traction rope 2 is pulled to re-fix the rain sensor, which is convenient for the frequent and multiple use of the rain sensor and improves the accuracy during use, and solves the problem that when the field microclimate automatic collection and receiving system is used, when it rains frequently in a short period of time, rainwater will remain inside the rain sensor, which will lead to inaccurate rainfall recognition.

The invention provides a detection method and application of amphoteric and cationic perfluorinated and polyfluoroalkyl compounds, the method optimizes an extraction agent, can more comprehensively detect, qualitatively and quantitatively analyze amphoteric and cationic PFAS in solid samples such as biological solids, soil and the like, has high accuracy and detection precision, and can be widely applied to detection of amphoteric and cationic perfluorinated and polyfluoroalkyl compounds. The amphoteric and cationic PFAS with more unknown structures can be identified and analyzed, the blank of the prior art in the aspect of extracting and detecting amphoteric and cationic perfluorinated and polyfluoroalkyl compounds is filled, the occurrence level and fate-to-transition behavior of the amphoteric and cationic PFAS in the environment can be accurately analyzed, traditional and novel amphoteric and cationic PFAS in the environment can be identified, and the detection accuracy of the amphoteric and cationic perfluorinated and polyfluoroalkyl compounds is improved. And a scientific basis is provided for new pollutant treatment in China.

This invention relates to the technical field of plastic recycling, and more particularly to a centralized processing device for polyethylene waste, comprising side plates, a first connecting plate, a first hydraulic telescopic cylinder, a second connecting plate, limiting rods, an extrusion assembly, and a drive assembly; several side plates are connected to a support block; a first connecting plate is disposed above the support block; a first hydraulic telescopic cylinder is fixedly connected to the first connecting plate; the telescopic end of the first hydraulic telescopic cylinder is fixedly connected to the second connecting plate; several limiting rods are fixedly connected to the second connecting plate; under the limiting action of the limiting rods, four through holes are formed inside the film block package. After inserting a PE tube into the through holes, the heat in the film block package can diffuse to the inside of the PE tube, and then diffuse from the inside of the PE tube to the external environment, avoiding heat accumulation and spontaneous combustion. At the same time, the limiting rods are also used to fix the middle of the film block package, preventing the film block package from shifting during the opening of the side plates, thereby avoiding affecting the gripping and positioning operation of the robotic arm.

The utility model relates to a mining double-bag hole packer convenient to install, and belongs to the technical field of underground blasting equipment. The double-bag hole packer comprises tamping bars, barbs, a grouting pipe, an inner bag, an outer bag and barbs, the tamping bars are hollow pipes, the tamping bars are sequentially connected through threads, a funnel-shaped fixing block is arranged at the top of the tamping bar at one end, the barbs are integrally in a conical umbrella rib shape, the bottoms of the barbs are inserted into the fixing block, the lower portions of the barbs are connected with the grouting pipe, and the inner bag is connected with the outer bag. An inner bag and an outer bag are arranged at the two ends of the grouting pipe respectively, and a plurality of grouting holes are formed in the grouting pipe. The device is simple in structure and convenient to operate, it is guaranteed that the bag hole packer does not move after being installed in place, hole sealing quality is guaranteed, and blasting safety is guaranteed.

The invention relates to a rosin-free depilatory hot wax and a preparation method thereof, and belongs to the technical field of depilatory hot wax. The depilatory hot wax comprises the following raw materials by weight: 30 to 70 parts of wax-based substances, 1 to 5 parts of carboxylated cellulose nanocrystals, 3 to 7 parts of coconut oil-based wax esters, 0.1 to 1 parts of depilatory proteases, 5 to 10 parts of modified polyols, 3 to 5 parts of polyurethane dispersions and 0.3 to 2 parts of colorants; wherein the coconut oil-based wax esters are synthesized from coconut oil, coconut alcohol and immobilized lipase; the modified polyols are synthesized from triglycerides after epoxidation reaction and then hydroxylation reaction. The depilatory hot wax of the invention does not add any additives containing any rosin or rosin derivatives with rosin as raw material, thus avoiding the occurrence of users being allergic to rosin and its derivatives, and has high depilatory efficiency, low drop melting point, can significantly reduce skin pain, and has good film-forming properties and is easy to tear.

The present invention relates to the technical field of wave-breaking walls, and specifically discloses a wave-breaking wall structure, including a wave-breaking wall assembly, the wave-breaking wall assembly including a wave-breaking wall body, a lifting guard plate assembly and a supporting reinforcement assembly; a slide groove is arranged on the wave-breaking wall body; the lifting guard plate assembly includes a lifting guard plate and an adjustment assembly; the lifting guard plate is provided with a slider, and the slider can be slid up and down in the slide groove; the adjustment assembly is used to drive the lifting guard plate to move up and down in the vertical direction; the supporting reinforcement assembly includes a hinge seat, a support seat, a support rod and a locking assembly; the support seat is hinged to the wave-breaking wall body through the hinge seat; one end of the support rod can be slidably arranged on the surface of the support seat, and the other end can be detachably connected to the lifting guard plate; the locking assembly is used to fix the position of the support rod on the support seat. The present invention realizes the flexible adjustment of the height of the wave-breaking wall and the stable support of the structure, which not only improves the applicability and flexibility of the wave-breaking wall, but also enhances its overall stability and bearing capacity, and prolongs its service life.

The embodiment of the utility model provides a battery module, a battery pack and a new energy automobile, and relates to the technical field of power batteries. The battery module comprises a lower box body, an upper cover plate, a plurality of battery cells and a plurality of fixing pieces, and the plurality of battery cells are arranged in the lower box body; the plurality of fixing pieces are arranged on the lower box body and are arranged at intervals, a battery cell is arranged between every two adjacent fixing pieces, and the fixing pieces are adhered to the side surfaces of the battery cells; the upper cover plate is arranged on one side, far away from the lower box body, of the battery cell, and the upper cover plate is adhered to the top surface of the battery cell. The battery module can reduce the production cost, is convenient to maintain and improves the working efficiency.

The invention discloses a detachable connection structure, a mounting and dismounting method thereof and a conduction component, and belongs to the field of electronic equipment mounting structures. The detachable connecting structure comprises a first plate body, a second plate body, a positioning block and at least two connecting pieces, and the first plate body and the second plate body are connected through the positioning block and the at least two connecting pieces, so that a first mounting position and a second mounting position on the first plate body and the second plate body are just correspondingly matched; the plug-in and the connecting piece located at the first mounting position and the second mounting position can be connected in a matched mode; furthermore, the connecting piece is controlled to move away from the positioning block to drive the second plate body to move away from the first plate body, so that the plug-in mounted on the first mounting position and the second mounting position can be quickly pulled out of the connecting piece. According to the detachable connecting structure, the second plate body and the first plate body which are connected through the connector clip can be inserted and pulled out conveniently, the structure is simple, the size is small, operation is convenient, and the detachable connecting structure is suitable for the position where the mounting and dismounting operation space of the second plate body and the first plate body is narrow.

The utility model discloses a fire-fighting steel chisel anchor point recovery device which comprises a straight hand lever, a rotatable U-shaped clamping piece is arranged at the front end of the straight hand lever, and the opening direction of the U-shaped clamping piece is perpendicular to the straight hand lever; a supporting rod is further included, a rotatable sleeve is arranged at the top end of the supporting rod, the straight hand rod is sleeved with the sleeve in a penetrating mode and fastened through a T-shaped screw, and a base is arranged at the bottom of the supporting rod. The base comprises a ball groove and a bottom plate which are fixed into a whole, and a ball head is arranged at the bottom end of the supporting rod and rotates in the ball groove. And the sleeve is provided with two T-shaped screw rods which are in threaded connection. And the rotating surfaces of the U-shaped clamping piece and the sleeve are overlapped. Compared with the prior art, the steel chisel pulling-out device has the advantages that the straight hand rod is connected with the supporting rod in a lever mode, the fulcrum can be adjusted, the base can adapt to uneven terrains, operation is labor-saving, a steel chisel can be pulled out quickly and easily, and the workload of firemen is reduced.

The invention discloses drilling equipment for coal field exploration. The drilling equipment comprises a mounting frame and a lifting frame. According to the drill bit, the standard drill pipe and the drill bit pipe which can be spliced are adopted, the outer surfaces of the standard drill pipe and the drill bit pipe are each provided with a chip groove and an internal thread groove, the chip grooves are used for discharging chips generated during drilling in the drilling process, and the internal thread grooves increase the friction force with soil layers located in the standard drill pipe and the drill bit pipe; a worker can reasonably increase or decrease the length of the standard drill pipe according to the drilling depth, the application range is wider, use is more convenient, the protruding points arranged on the bottom face of the drill pipe smash the soil layer in the rotating process of the drill pipe, continuous soil breaking and drilling are facilitated, and the drilling efficiency is improved. The drill bit is simple in structure and convenient to operate, has high crushing capacity especially for a hard coal seam, improves the drilling and sampling efficiency, soil layer samples are located in the standard drill pipe and the drill bit pipe, the distribution state of the soil layer samples is not changed, exploration and analysis of workers are greatly facilitated, and the working efficiency is improved.

The utility model belongs to the technical field of tunnel primary support detection equipment, and particularly relates to a detection hole reserving device for tunnel primary support detection, which comprises a mounting seat, a steel arch frame, a straight pipe, geotechnical cloth and a fixing component, the mounting seat is detachably connected with the steel arch frame, and the two ends and the outer wall of the straight pipe are wrapped with multiple layers of geotechnical cloth. The straight pipe is arranged on one side of the steel arch frame, the two ends of the straight pipe extend out of the front surface and the rear surface of the steel arch frame correspondingly, and the straight pipe wrapped by the geotechnical cloth is fixed to the mounting base through the fixing assembly; the inner channel of the straight pipe or the cavity formed after the straight pipe is pulled out is the preformed hole for tunnel primary support cavity detection, the treatment procedure after concrete spraying is completed can be simplified, the straight pipe is wrapped with the geotechnical cloth, the structure is simple, installation is convenient, impurities such as silt and chippings in the concrete spraying process can be prevented from entering the inner channel of the straight pipe, and the construction efficiency is improved. Excellent water permeability is achieved, and drainage of the inner wall of the tunnel is facilitated.

The utility model relates to the technical field of water treatment, in particular to a physical field descaling device for a heat supply system, which comprises a first filter vat, a second filter vat and a filter box, and is characterized in that a water inlet pipe is arranged on the surface of the first filter vat, and the first filter vat is communicated with the second filter vat through a first pipeline; the second filtering barrel is communicated with the filtering box through a second pipeline, and a water outlet pipe is fixedly connected to the bottom of the side, away from the second filtering barrel, of the filtering box. The device has the advantages that the screw rod is rotated by using a wrench, so that the distance between the second clamping plate and the first clamping plate is greater than the width of the fixed frame, the purpose of saving time and labor can be achieved when the semi-permeable filter membrane is replaced, and the filter assembly can be replaced by opening the sealing cover and pulling out the first filter cylinder from the first filter barrel; and the exchange resin filter filling layer can be replaced by pulling out the second filter cylinder from the second filter barrel, so that the aim of conveniently replacing the water quality filter and the hydrogen ion exchange resin filter is fulfilled.

Provided are a large hollow porous quartz glass base material and a hollow synthetic quartz glass tube, which are capable of producing a soot body even for a soot body having an outer diameter exceeding 300 mm without significantly increasing the load on a device, such as centrifugal force generated during growth, and which do not crack or break the soot body even when produced at low-speed rotation. And the target is easy to pull out. The present invention relates to a method for manufacturing a hollow porous quartz glass base material by an OVD method, in which the rotational speed of a soot body that fluctuates during growth is varied on the basis of the outer diameter of the soot body, thereby controlling the rotational circumferential speed of the soot body to be substantially constant, and in a range in which the outer diameter of the soot body exceeds 250 mm, [gamma] = S / (L.Nm) [S is the moving speed of a burner (mm / min), and [L.Nm is the moving speed of the burner (mm / min)], and [L.Nm is the moving speed of the burner (mm / min)]. L is the movement distance (mm) of the combustor, and Nm is the minimum value (rpm) of the rotating speed of the fluctuation of the soot body. The frequency coefficient gamma is set to be in the range of 0.13 < = gamma < 1.0.

The application discloses a Chinese cabbage harvester, which comprises a machine body, a conveying mechanism and a cutting mechanism. The conveying mechanism comprises a conveying driving assembly, a supporting conveying belt, two conveying frames, two clamping conveying belts and two elastic supporting assemblies. The two clamping conveying belts are oppositely arranged and capable of clamping Chinese cabbage. The supporting conveying belt is capable of supporting the bottom of the Chinese cabbage after the roots of the Chinese cabbage are cut. The conveying driving assembly drives the supporting conveying belt and the two clamping conveying belts. The elastic supporting assemblies are capable of being elastically deformed in self-adaption relative to the conveying frames when the clamping conveying belts clamp the Chinese cabbage, so that the clamping conveying belts can be self-adaptively attached to the Chinese cabbage. The cutting mechanism comprises a cutting driving assembly, a clamping assembly and a cutting assembly. The cutting driving assembly drives the clamping assembly and the cutting assembly. The clamping assembly clamps the root of the Chinese cabbage and provides an upward force. The cutting assembly is capable of cutting the root of the Chinese cabbage. The Chinese cabbage harvester provided by the application is convenient for low-loss pulling and root cutting of Chinese cabbage.

The pressing type double-material liquid outlet bottle is characterized by comprising a nozzle, a pressing head, an outer bottle body, a connector, a first pump core, a second pump core, a supporting seat, an inner bottle outer sleeve and an inner bottle body, the inner bottle body is arranged in the inner bottle outer sleeve, the inner bottle outer sleeve is arranged in the outer bottle body, an aluminum middle ring lining is arranged at the lower end of the pressing head, and the connector is connected with the aluminum middle ring lining. The aluminum middle ring lining is fixedly connected to one end of the outer bottle, one end of the connector is connected to the lower end of the pressing head in a clamped mode, the other end of the connector is connected with the first pump core and the second pump core in a clamped mode at the same time, and the first pump core and the second pump core are connected into the supporting base in a clamped mode and inserted into the inner bottle outer sleeve and the inner bottle respectively. According to the pressing type double-material liquid outlet bottle with the lock head, two kinds of cosmetic material bodies are stored independently and separately, the cosmetic material bodies are squeezed out and mixed for use in the use process, and the pressing type double-material liquid outlet bottle has the advantages that use is convenient, the pressing pump head can lock sealed bottle liquid, and the pressing pump head is not prone to being pulled out.

The present disclosure provides a catheter shaft that is easily pulled out of a body even when an external force is applied from a blood vessel due to spasm, and that is not easily broken when pulled out. A catheter shaft is provided with: a shaft main body having a multi-lumen structure; and at least one reinforcing layer embedded in the shaft main body and the catheter shaft, and performing a tensile test for stretching a test piece obtained from the catheter shaft under test conditions of a chuck-to-chuck distance of 30 mm and a tensile speed of 300 mm / min. When the tensile test is performed, the ratio of the amount of change in the minimum outer diameter after tensile at a predetermined position of the test piece relative to the minimum outer diameter before tensile is defined as a reduction ratio in%. When the percentage of change in the axial dimension after stretching of the catheter shaft with respect to the axial dimension before stretching is defined as the elongation in%, the shrinkage rate is 5% or more when the elongation reaches 100% when the test piece is not fractured in the tensile test, and the percentage of change in the axial dimension after stretching of the catheter shaft with respect to the axial dimension before stretching is defined as%.

The invention relates to the technical field of sludge sampling, in particular to a portable river bottom sludge sampling device for water environment treatment. Comprising a driving device; the sampling inner shell is detachably and fixedly connected to the driving device; the outer shell is arranged outside the sampling inner shell, a gap is reserved between the outer shell and the sampling inner shell, and the driving device is detachably and fixedly connected with a control shaft; the attaching ring is arranged at the bottom of the sampling inner shell, and the attaching ring is attached to the outer shell; the fixing assembly is arranged on the outer shell and used for fixing the outer shell and the sampling inner shell into a whole. The sampling inner shell and the outer shell are separated, water enters the bottom of the sampling inner shell to offset negative pressure, part of sludge is diluted, the resistance of a sludge layer of the outer shell is reduced, a worker can pull out the outer shell more easily in combination with shaking of the outer shell, and the sludge sampling efficiency and the convenience degree are improved.

The invention discloses a knife roll of a stem pulling machine, and particularly relates to the technical field of knife rolls, the knife roll comprises a limiting disc, the two sides of the limiting disc are each provided with a soil pulling and breaking assembly, each soil pulling and breaking assembly comprises a cross rod arranged on one side of the bottom of the limiting disc, and the two ends of each cross rod are each provided with a plurality of supporting discs through flanges; a plurality of elastic tie bars used for pulling rods are distributed between the two supporting discs. The angle of the supporting wheel is easily adjusted through the bolt, so that the function of adjusting the turning knife and the elastic tie bar to be horizontal is achieved, the stem pulling and soil crushing effects are improved, the elastic tie bar rotates to wind tobacco stems, the tobacco stems are restrained together, and the stem pulling efficiency and effect are improved; the tobacco stems are pulled when the elastic tie bars deform under stress and are elastically reset through the elastic tie bars, the tobacco stems can be easily pulled out of the soil in cooperation with traction force generated when the supporting disc rotates, the turning cutters rotate to crush the soil, and follow-up planting is facilitated.

The invention discloses a strip mine waste dump slope fixing device, which comprises a rod body, the rod body comprises a main body part and a conical part which are integrally connected, the main body part is internally provided with a containing cavity, the main body part is provided with a plurality of through holes in a layered manner, and the through holes in the same layer are oppositely arranged; the first fixing assembly comprises inserting rods inserted into the penetrating holes and extending to the containing cavity, stopping plates arranged at the inner ends of the inserting rods and springs, one ends of the springs abut against the stopping plates, the other ends of the springs abut against the inner wall of the main body part, and the stopping plates on the inserting rods in the penetrating holes in the same layer are oppositely arranged; the driving assembly comprises a rotating plate arranged between the stopping plates, the rotating plate comprises a first abutting part and a second abutting part, the length of the second abutting part is larger than that of the first abutting part, when the first abutting part abuts against the stopping plates, the ends, away from the stopping plates, of the inserting rods are located in the penetrating holes, and when the second abutting part abuts against the stopping plates, the ends, away from the inserting rods, of the inserting rods are located in the penetrating holes. The end, away from the stopping plate, of the inserting rod is located outside the body part. The device is not easy to separate from the slope.

The utility model provides a cast-in-place pile casing device which at least comprises a plurality of casing units, a plurality of connecting rings and a limiting clamp spring, each casing unit is provided with more than three arc plate bodies, and the arc plate bodies are connected end to end around the axis of the casing unit in the circumferential direction to form a cylinder in an enclosing mode. The pile casing unit comprises a plurality of arc plate bodies which are distributed in the circumferential direction and form a cylinder, limiting clamp springs are arranged on the inner sides of the arc plate bodies in a clamped mode and used for keeping the arc plate bodies to be cylindrical, and when the limiting clamp springs are separated from the inner sides of the arc plate bodies, the arc plate bodies can be staggered and separated in the radial direction. Connecting rings are installed at the two ends of the pile casing unit, a limiting clamping spring is installed on the inner side of the pile casing unit, the pile casing unit can be stably inserted into a soil layer in structure, after drilling is conducted, the limiting clamping spring can relieve supporting of the arc plate bodies from the inner side, the arc plate bodies move towards the inner side, and the arc plate bodies are made to be separated from the soil layer, pulled out more easily and separated from a pile foundation hole.

The objective of this invention is to provide a steering wheel that allows the driver to easily remove their fingers from a hole provided in the connecting portion, even if the driver's fingers become stuck in the hole. A hub is fixed to the steering shaft. Furthermore, when viewed axially along the hub, a rim portion for the driver to grip is disposed on the outer periphery of the hub, and the hub and rim portion are connected by a connecting portion. Holes with openings on the front side of the steering wheel are provided in the left and right connecting portions. The left and right connecting portions have inclined surfaces on the inner peripheral surfaces forming the holes, and these inclined surfaces are inclined such that the holes enlarge as they face the front side.

The lossless ginger discharging machine comprises a top frame, a soil loosening mechanism and a conveying mechanism, a mounting frame is arranged on the rear side of the lower end of the top frame, the soil loosening mechanism comprises lower connecting rods, a soil loosening frame, a soil loosening shovel, a first rotating shaft, an eccentric wheel, an upper connecting rod and a connecting column, the lower connecting rods are rotationally connected to the lower end of the front side of the mounting frame, and the soil loosening frame is arranged between the two lower connecting rods; according to the lossless ginger discharging machine, before ginger is pulled out, soil in the area where the ginger is located can be loosened through up-down swinging of the soil loosening frame, the surface of the ginger can be preliminarily cleaned while the ginger is pulled out more easily and completely, and the damage to the ginger is avoided. A conveying mechanism is further arranged, the ginger can be directly conveyed to the seedling cutting procedure after being pulled out, and soil on the surfaces of ginger blocks can be removed to the maximum extent through shaking of rubber rollers in the period.

The utility model discloses a two-wheeled vehicle transportation quick-assembly self-locking tensioning and fastening device, including footstep hanging seat, pull handle assembly, long quick-release safety pin and short quick-release safety pin, footstep hanging seat includes insertion part and connecting portion, and insertion part is equipped with first insertion hole, and connecting portion is equipped with second insertion hole, pull handle assembly includes pull assembly and handle assembly, and one end of pull assembly is hinged with handle assembly, and pull assembly is equipped with pull clamping, and handle assembly is hinged with connecting portion, and handle assembly is equipped with third insertion hole, long quick-release safety pin can be detachably inserted into first insertion hole, the position of pull assembly and handle assembly hinged and the position of handle assembly and connecting portion hinged are interval arrangement, handle assembly has opening state position and closed state position relative to connecting portion, and short quick-release safety pin can be detachably inserted into second insertion hole and third insertion hole in closed state position, is used for quick fixed connection two-wheeled vehicle and is quick to release the state of being taut when disassembling.