864results about How to "Reduce displacement" patented technology

The rotary cross-flow ceramic membrane filtering device comprises a shell, a main shaft unit arranged in the shell and a power unit for driving the main shaft unit to rotate, the power unit provides rotating power for the main shaft unit and drives the filtering disc to rotate, the main shaft unit is installed in the shell and executes a specific filtering task, and the shell provides necessary support and protection for the main shaft unit and the power unit and controls inflow and outflow of materials. According to the rotary cross-flow ceramic membrane filtering device provided by the invention, the ceramic membrane filtering disc is arranged, so that the filtering efficiency and the system stability are improved, the operation cost is reduced, and the rotary cross-flow ceramic membrane filtering device is suitable for being widely applied to various industrial fields needing efficient filtering solutions.

The invention provides a wafer bonding device and a wafer bonding method, and relates to the technical field of semiconductor processing. The wafer bonding device comprises a carrying seat, a driving structure arranged on the carrying seat, and a target chuck and a bearing chuck which are arranged along the Z direction, at least one of the target chuck and the bearing chuck is in transmission connection with the driving structure, and the driving structure is configured to be capable of driving the target chuck and the bearing chuck to relatively move along the X-Y direction and the Z direction; a plurality of notches are formed in the edge of the target chuck; the carrying base is provided with a plurality of visual systems, the visual systems are located on the side, away from the bearing chuck, of the target chuck, the axial direction of the visual systems is consistent with the Z direction, the visual systems correspond to the notches one to one, and the visual systems are configured to shoot images, corresponding to the notches, of the wafers loaded on the target chuck and the bearing chuck. The wafer bonding device is good in wafer bonding quality, high in yield, small in size and small in occupied space.

The invention discloses a heat exchanger with a protection function for biodiesel preparation, and relates to the technical field of heat exchangers, the heat exchanger comprises heat exchange equipment and further comprises a protection device, a control device is fixedly installed on the front side of the heat exchange equipment, a liquid inlet pipe is fixedly installed on the left side of the heat exchange equipment, and a placing frame is fixedly installed on the left side of the heat exchange equipment; wherein the protection device comprises a connecting pipe, an adjusting hole, an adjusting frame, an L-shaped rod, a protection groove, a rotating rod, a protection disc and a limiting groove, the L-shaped rod moves upwards to be separated from the adjusting hole and release limiting of the connecting pipe, and after limiting of the connecting pipe is released, the connecting pipe is manually pushed to move in the direction close to the oil storage tank for butt joint; and through the protection disc, loosening or displacement of the connecting pipe caused by the fact that an operator accidentally touches the L-shaped rod can be effectively prevented, and therefore the risk of leakage or accidents is reduced.

The invention relates to the technical field of machine tool positioning, in particular to an integrated machining workpiece positioning method of a turning-milling composite machine tool, which comprises the following steps of: really capturing geometrical characteristics of a workpiece through a high-resolution image acquisition and deep learning algorithm, and establishing an accurate point cloud model and a mathematical model, so that the workpiece is positioned more accurately in the subsequent machining process; machining defects caused by positioning errors are obviously reduced; on the basis of the machining requirement of a current workpiece, proper clamping force and a proper clamping mode are designed, so that the workpiece can be kept stable in the machining process, workpiece displacement or damage caused by improper clamping is reduced, and then the machining quality is improved; and meanwhile, a dynamic monitoring and feedback mechanism is introduced, the deviation between the actual clamping position and the target position of the workpiece can be judged in real time, corresponding adjustment is made to adapt to displacement or deformation possibly occurring in the machining process, and continuous and accurate positioning of the workpiece is ensured.

The invention discloses a deep heat storage large-scale fracturing construction scheme design method based on a weak structure, and relates to the technical field of high-temperature geothermal resource exploration and development, and the method comprises the following steps: depicting and characterizing the weak structure of a deep heat storage large-scale fracturing stratum to obtain a comprehensive characterization large model; based on the comprehensive characterization large model, delineation and fracturing performance evaluation are conducted on a weak structural zone of the deep heat storage scale fractured stratum, and a delineated area is obtained; on the basis of the delineated area, the farthest disturbance range and distance of fracturing transformation of the weak structure of the deep heat storage scale fractured stratum are predicted; and determining a well spacing, designing a well location, deploying a well pattern and optimizing a fracturing layer section based on the fracturing property and the predicted farthest disturbance range and distance of thermal storage fracturing transformation, and completing the design of a deep thermal storage large-scale fracturing construction scheme. According to the method, through construction and analysis of the comprehensive characterization large model, the stratum weak structural zone suitable for fracturing can be accurately delineated, the farthest disturbance range and distance of fracturing transformation are predicted, and efficient mining is achieved.

The invention discloses a mattress roadway stacking machine for bamboo mattress production and processing, and relates to the technical field of automatic storage and logistics, the mattress roadway stacking machine comprises a frame, a base plate, a conveying belt, a mattress, a stacking frame and a fixing frame, a stacking device is arranged in the stacking frame, a conveying device is arranged above the conveying belt, and the fixing frame is arranged above the conveying belt. An auxiliary device is arranged above the fixing frame, a base plate is pushed to move along a sliding rail rod through a servo motor, a conveying belt and a push plate, mattresses can be more easily aligned and stacked in the follow-up stacking process through the base plate, the base plate is moved upwards through an air cylinder and a top plate, the base plate is placed at the top of the placing frame through the placing frame and a check rod, and therefore the mattresses can be conveniently stacked. Stacking of the base plate is completed at the moment, stacking of the base plate is gradually conducted upwards, stacking of the mattresses can be more stable, the collapse risk is reduced, storage and management of the mattresses can be more orderly through the stacking mode, and the mattresses are convenient to check and take for use.

The utility model relates to the technical field of electrical equipment, and discloses an electrical equipment transportation device which comprises a transportation vehicle body, a bottom plate is fixedly installed at the bottom of the transportation vehicle body, a first sliding groove and a second sliding groove are formed in the top of the bottom plate, and the first sliding groove and the second sliding groove are formed in a penetrating mode; through the multiple dampers and the clamping plates, the clamping plates can fix the four sides of the electrical equipment at the same time, it is ensured that the equipment is more stable in the transportation process, shaking and displacement are reduced, damage to the equipment caused by collision or friction is avoided, the dampers can effectively absorb and disperse impact from the road surface, the vibration influence on the electrical equipment is reduced, and the service life of the electrical equipment is prolonged. The internal structure and electronic components of the electrical equipment are protected from being damaged, the rollers at the bottom can be driven to move up and down for lifting through the lifting plate and the rollers, and when the equipment needs to be positioned or fixed, the rollers can move upwards, so that the electrical equipment is stably placed on the ground or other planes, and the equipment is prevented from sliding or moving.

The invention provides a periosteum distraction system and a using method thereof, the periosteum distraction system comprises a periosteum distraction plate, a primary nail and a secondary nail, the periosteum distraction plate comprises a first distraction plate and a second distraction plate, and the first distraction plate and the second distraction plate are detachably connected; the periosteum distraction plate is provided with a first connecting part, the female nail is provided with a second connecting part, and the first connecting part is fixedly connected with the second connecting part; the female screw is of a hollow structure and is provided with an internal thread; the son nail is mounted in the mother nail, the son nail is provided with an external thread, and the external thread is matched with the internal thread of the mother nail; the son nail is rotated to enable the mother nail and the periosteum distraction plate to move in the axial direction of the son nail, and the end of the son nail protrudes out of the periosteum distraction plate. By using the technical scheme provided by the invention, the periosteum incision is smaller, the trauma to the periosteum is smaller, and the condition that the skin is stimulated when the periosteum is stretched is reduced.

The invention discloses a thermal power plant equipment maintenance device, and belongs to the technical field of thermal power plant maintenance. The winding device comprises a portal frame, a plurality of moving assemblies are movably arranged on the portal frame, a first winding assembly is arranged on the lower portion of each moving assembly, a second winding assembly is arranged on the top of each moving assembly, and position adjusting assemblies are fixedly arranged on the outer walls of the two sides of each moving assembly correspondingly; first electric telescopic columns are rotationally arranged on the outer side walls of the two position adjusting assemblies correspondingly, the output tail ends of the two first electric telescopic columns are fixedly connected with scratch-proof assemblies correspondingly, steering assemblies are fixedly arranged on the top faces of the two position adjusting assemblies correspondingly, and telescopic assemblies are arranged on the outer side walls of the first electric telescopic columns; the first electric telescopic column and the scratch-proof assembly are matched with an anti-swing system on maintenance equipment, the effect of restraining the thermal power plant equipment from swinging is better, abrasion of a steel wire rope can be reduced, and the service life of the equipment can be prolonged.

The invention discloses a variable-working-condition IES optimal scheduling method considering a GCT-LTC joint mechanism and a PDR mechanism. The method comprises the steps that S1, a comprehensive energy system comprising power, heat and gas multi-energy complementation is constructed; s2, constructing a variable working condition equipment operation model in the integrated energy system; s3, on the basis of the equipment operation model, constructing a variable working condition IES optimization scheduling model considering a GCT-LTC joint mechanism and a PDR mechanism; and S4, solving the variable working condition IES optimal scheduling model by using a particle swarm algorithm to obtain an operation optimization parameter taking the lowest total operation cost as a target, and performing optimal scheduling of the integrated energy system according to the operation optimization parameter. According to the method, based on a green certificate-stepped carbon transaction joint mechanism, the corresponding optimal scheduling model considering the variable working condition characteristics and requirements of the IES is established with the lowest economic cost as the target, so that the effects of more effective energy conversion and reduced energy waste are achieved, economic operation of the IES is facilitated, and analysis on the overall operation scheduling condition of the IES is more accurate.

The invention discloses a steel bridge deck slab U rib laser arc hybrid welding method and device, and relates to the technical field of welding equipment.The device comprises a device body, positioning mechanisms and a smoke discharging mechanism, the device body is placed at the top of a rib plate, a steel plate is arranged at the bottom of the rib plate, and the positioning mechanisms are arranged at the two ends of the device body; the welding device comprises a device body and a positioning mechanism, the positioning mechanism is used for fixing the device body to the top of a rib plate, a welding mechanism is arranged at the top of the device body and used for welding the two sides of the rib plate and a steel plate, and an exhaust fan is arranged on one side of the welding mechanism. Accurate and stable welding positioning and fixing are achieved, according to the mechanism, the bevel gear system is driven by rotating the rotating disc, then the threaded rod and the connecting block are driven to move, clamping of the rib plate by the limiting wheel is achieved, and according to the design, welding accuracy and reliability are improved, and vibration and displacement in the welding process are reduced.

The utility model relates to a target material fixing device for a vacuum coating machine, relates to the technical field of vacuum coating, and aims at solving the problem that a traditional fixing device is poor in flexibility. The target material fixing device comprises a bottom frame, two fixing bases are arranged on the bottom frame and oppositely arranged on the bottom frame, and a target material fixing area is formed between the two fixing bases; a driving mechanism used for synchronously driving the two fixing seats is arranged on the bottom frame, the driving mechanism comprises a supporting plate, a bidirectional lead screw and a servo motor, the supporting plate is connected to the bottom frame, the bidirectional lead screw is rotationally connected to the supporting plate, the output end of the servo motor is connected to the end of the bidirectional lead screw, and the output end of the servo motor is connected to the end of the bidirectional lead screw. The two-way lead screw is provided with two threaded ends opposite in rotating direction, the two fixing seats are in threaded connection to the two threaded ends of the two-way lead screw respectively, each fixing seat is slidably connected to the supporting plate, and the bottom frame is further provided with a translation mechanism used for moving the position of a target material. The application has the effect of improving operation flexibility and adjustability.

The invention discloses a steel casing-steel pipe pile combined pile group regulation and control system and method in a water area environment. A combined pile group comprises a steel casing, a steel rail assembly and a combined steel rod truss. The steel rail assembly comprises a plurality of vertical steel rails arranged on the outer wall of the steel casing and horizontal steel rails arranged at the bottoms of the vertical steel rails and horizontally arranged in the circumferential direction of the outer wall of the steel casing. The combined steel pole truss comprises a plurality of steel pole truss units which comprise steel pole limiters, steel poles and steel pile limiters at the same time; grouting pipes are respectively arranged on the lower sides of the inner walls of the steel casing and the steel pile; the regulation and control system comprises an axial force strain gauge, an underwater controllable jack and a ground management system; axial force changes of the pile group structure in actual work are measured through the steel rod axial force strain gauges and are output into a ground management system; and the position of the steel rod limiting stopper is adjusted through the underwater controllable jack, so that the axial force of the whole truss structure is uniformly distributed to a limited range, and the real-time monitoring and adjustment of the stability of the combined pile group structure are realized.

The utility model relates to the field of layered structures. The three-layer composite structure pillow comprises an upper supporting layer, and the upper supporting layer is provided with a first groove and a first protrusion; a lower supporting layer is further included, a second protrusion is arranged on the lower supporting layer, the second protrusion extends into the first groove, and the space between the second protrusion and the first groove is filled with a first supporting block; a second groove is formed in the lower supporting layer, the first protrusion extends into the second groove, and the space between the first protrusion and the second groove is filled with a second supporting block. The pillow adopts a three-layer composite structure, and each layer is allowed to be made of different materials, so that different softness and hardness experience feelings are obtained.

The invention discloses an automatic heating wire welding device for electronic cigarette production, which comprises a welding table, a laser generator, a focusing tube and a supporting table plate fixedly mounted on one side of the welding table, mounting racks are arranged on two sides of the upper end of the focusing tube, and the mounting racks are fixedly mounted on the supporting table plate. Circuit data are monitored in real time through a power supply monitor, when a protective layer on the surface of a heating wire is thick and resistance is large, the voltage of current passing through an electromagnet is low, magnetorheological fluid flows slowly under the action of shear stress, a multistage electric push rod continuously pushes a piston piece to enable a pressing pipe to stretch out, and meanwhile the power supply monitor feeds back the data to a laser generator. And on the contrary, when the protective layer is thin and the resistance is small, the shear stress of the magnetorheological fluid is large, the multi-stage electric push rod stops pushing, the power supply monitor feeds back data, the laser generator reduces the power, and over-welding is prevented, so that the stable welding quality is ensured, and the reliability and the stability of welding of the heating wire and the electronic cigarette end are improved.

The invention relates to the technical field of forming machines, and provides a thick profile machining forming machine which comprises a feeding workbench used for conveying a profile needing to be bent, a forming main machine used for conducting cold roll forming on the profile and a workbench used for bearing the profile subjected to cold roll forming. The feeding workbench comprises a first support, a guide rail arranged on the first support and a driven feeding trolley connected to the guide rail in a sliding mode, a clamp used for abutting against a profile is arranged on the driven feeding trolley, and a guide structure is arranged on the first support. The guide structure is used for driving the clamp to rotate in the direction away from the sectional material so as to relieve abutting against the sectional material. The forming main machine comprises a machine frame, a conventional rolling module, an acute-angle rolling module and a driving mechanism, wherein the conventional rolling module and the acute-angle rolling module are arranged on the machine frame, and the driving mechanism is arranged on one side of the machine frame. The acute-angle rolling module has the beneficial effect that the stability of the acute-angle rolling module in the bending process of the sectional material is improved, so that the bending effect of the sectional material is improved.

A drill rod stress wave reduction device belongs to the technical field of down-the-hole hammer drilling tools and comprises an upper connector, a semicircular clamp, a spline housing, a spline shaft and a gasket assembly. Wherein the gasket assembly is formed by tightly stacking at least two layers of gaskets, each gasket is made of two or two materials with different wave impedances, the wave impedances of any two adjacent gaskets are different, when stress waves are transmitted to the wave clipping device from the impactor at the lower end, the stress waves can sequentially pass through interfaces with different material wave impedances, and the wave clipping effect is achieved. Incident stress waves can be reflected and transmitted on an interface, and the stress wave peak value and stress wave energy finally transmitted to the upper drill rod are greatly reduced. The stress wave reduction protection device is simple in structure, convenient to install and low in manufacturing cost, the service life of the drill rod is prolonged, the tripping time is shortened, and the drilling efficiency is effectively improved.

The utility model discloses a metal product machining clamping device which comprises a working frame, a moving seat and a clamping assembly, the moving seat is movably installed in the working frame, the clamping assembly is fixedly installed on the top of the moving seat, the clamping assembly is driven to move through the moving seat, and then a metal product is fixed and used through the clamping assembly. And the clamping assembly comprises a rotating disc, a first fixing base, a second fixing base, a telescopic air cylinder, a pressing plate, a rotating rod and a rotating plate, the rotating disc is rotationally installed above the moving base, and the first fixing base is fixedly installed on one side of the top of the rotating disc. A workpiece can be stably fixed between the pressing plate and the rotating plate, vibration and displacement in the machining process are reduced, therefore, the machining precision is remarkably improved, the quality and consistency of products can be guaranteed, and a worker can easily adjust the clamping position by adjusting the position of the rotating plate through the rotating rod.

The invention relates to the technical field of bolt looseness detection, in particular to a portable laser vibration meter for bolt looseness detection and a use method thereof.The portable laser vibration meter comprises a laser vibration meter body, a hanging rope, an insertion rod, an insertion hole and a placement groove, the hanging rope is arranged on one side of the laser vibration meter body, sliding grooves are formed in the two sides of the outer wall of the hanging rope, and the sliding grooves are formed in the bottom faces of the inner walls of the sliding grooves; a protective shell assembly is in sliding fit with the side wall of the sliding groove and comprises a protective shell body, plate bodies are arranged at the two ends of the protective shell body, a clamping groove is formed in one side of the protective shell body, and an anti-skid pad is arranged on the other side of the protective shell body. By arranging a hanging rope, the laser vibration meter can be conveniently carried to a designated position, and carrying and moving are convenient; by arranging the protective shell assembly, an optical element on the top surface of the laser vibration meter can be effectively protected; through cooperation of the protective shell assembly, the rotating shaft and the supporting legs, the laser vibration meter adapts to different detection requirements and angles, the laser vibration meter body can be stably placed at a detection position through the supporting legs, and vibration and displacement are reduced.

The invention relates to the technical field of foundation pit supporting, and discloses a large-area foundation pit supporting construction method.A reinforcing mesh is arranged on a slope on one side of a drainage ditch on the ground, soil nails are arranged on the reinforcing mesh, the reinforcing mesh is fixed through the soil nails, a concrete layer is sprayed to form shotcrete-anchor supporting, and a waterproof curtain is arranged on the surface of the lower end of the reinforcing mesh; row piles are arranged on the inner side of the waterproof curtain and adopt cast-in-situ bored piles as foundation pit fender posts, a soil body below a foundation pit excavation face on the inner sides of the cast-in-situ bored piles is reinforced to achieve passive area soil body reinforcement, a top beam is arranged at the upper ends of the cast-in-situ bored piles, a reinforcing pier is arranged on the inner side of the top beam, and a steel lattice inclined pile is arranged on the side, away from the top beam, of the reinforcing pier. According to the construction method of the large-area foundation pit support, after the steel lattice inclined piles are put down, the reinforcing pier construction reinforcing bars and the steel lattice columns at the tops of the steel lattice inclined piles are firmly fixed, and the top beams and the reinforcing piers are poured, so that the top beams, the reinforcing piers and the steel lattice inclined piles form an integral structure.

The embodiment of the utility model discloses an aerosol generating device. The aerosol generating device comprises a main machine and an atomizing medium assembly. The main machine comprises a main shell and a heating assembly, the main shell is provided with an installation area extending in the first direction, and the two ends of the installation area are the first end and the second end respectively. The atomizing medium assembly comprises a strip-shaped medium and a shell, and the two ends of the shell are an assembling end and a matching end respectively. The main shell is provided with a first matching part, the shell is provided with a second matching part, and in the process that the matching end abuts against the first end and the assembling end rotates around the matching end in the direction of entering the mounting area, the first matching part and the second matching part can form interference so as to limit rotation of the assembling end; in the process that the assembling end abuts against the second end and the matching end rotates around the assembling end in the direction of entering the installation area, the first matching part and the second matching part are matched so that the shell can be assembled in the installation area. The aerosol generating device provided by the embodiment of the utility model is beneficial to reducing the probability of problems such as deformation or fracture of the strip-shaped medium.

The invention relates to a camera module and electronic equipment. The camera module comprises a lens, an image sensor and a focusing assembly. The focusing assembly comprises a conduction element and a driving element, the lens and the image sensor are arranged on the same side of the conduction element, and the conduction element is used for conducting light from the lens to the image sensor. And the driving element is configured to be capable of driving the conduction element to move along the optical axis direction of the lens. According to the camera module, the size of the camera module in the optical axis direction of the lens can be compressed, and the application range of the camera module can be expanded.

The invention relates to the technical field of disaster prevention and reduction, in particular to a design method and a construction method for earthquake prevention and disaster reduction of a T-shaped rigid frame bridge. According to the design method, a swing energy dissipation and shock absorption device is added in the design process of the T-shaped rigid frame bridge, collaborative optimization is carried out, so that the T-shaped rigid frame bridge does not have plastic damage under the action of an earthquake exceeding fortification intensity; the swing energy dissipation and seismic mitigation device dissipates seismic energy, reduces the seismic energy transmitted from the foundation and the bearing platform to the bridge piers and the main beam, reduces the seismic force of the bridge piers, reduces the displacement and flapping effect of the main beam, and protects the operation safety of the T-shaped rigid frame bridge.

The utility model discloses a battery string and a photovoltaic module, and belongs to the technical field of photovoltaic modules. The battery string comprises battery pieces, and the surfaces of the battery pieces are provided with first grid lines extending in the first direction; the welding strip extends in the second direction and is connected to the first grid line, the width of the welding strip is d in the first direction, and the second direction intersects with the first direction; wherein the connection part of the first grid line and the welding strip is provided with a thickened section, the thickened section extends along the first direction, the length of the thickened section along the first direction is l, and l is more than or equal to 1.5 d and less than or equal to 2.5 d.

The utility model relates to the technical field of roads and bridges, in particular to a road and bridge panel joint reinforcing device which comprises a first panel, and a second panel is arranged on one side of the first panel. One side of the first panel and the interior of the second panel are jointly provided with a connecting assembly; the bottom ends of the first panel and the second panel are jointly provided with a reinforcing assembly. Through cooperative use of the square columns, the connecting blocks, the special-shaped blocks, the round rods and the circular truncated cones, the purpose of prolonging the service life of the panels can be achieved, dependence of a single bolt is reduced, a more stable and compact structure can be provided, and therefore the overall bearing capacity and stability are enhanced, displacement and looseness between the panels are reduced, and the service life of the panels is prolonged. The maintenance and repair requirements are reduced, the maintenance cost is reduced, the maintenance period is shortened, and the aging and abrasion of the pavement are effectively slowed down.

The utility model discloses a non-invasive respirator mask decompression device, and relates to the technical field of respirator masks. The other end of the communicating pipe is provided with an air guide pipe, the other end of the air guide pipe is fixedly communicated with the noninvasive breathing machine, a connecting mechanism is arranged between the communicating pipe and the air guide pipe, a pressure reduction strip is fixed at the contact position of the mask body and the face, and supporting strips are symmetrically fixed on the two sides of the pressure reduction strip. According to the utility model, the cover body is fixedly communicated with the communicating pipe and the gas guide pipe, so that gas is conveyed smoothly; due to the design of the pressure reduction strip and the supporting strip, the contact position of the mask body and the face can be more stable, additional supporting is provided, the wearing comfort is improved, displacement and discomfort of the mask in the using process can be reduced, and the comfort of a patient in the treatment process is guaranteed; the arrangement of the first fixing mechanism and the second fixing mechanism can help to ensure the correct wearing position and stability of the mask, the treatment effect is improved, and potential complications are reduced.

A self-adaptive pressure-bearing energy-absorbing upward drift filling method based on intelligent monitoring and early warning comprises the steps that rock masses are classified according to the crushing degree of the rock masses, and grouting parameters are selected; a plurality of advanced spindle type grouting guide pipes are driven into one section of the periphery of the hanging wall loose rock mass; high-pressure grouting operation is conducted, and a grout anchoring area with the thickness being 1 m is formed; after smooth blasting operation, single-time lagging supporting is carried out, and multiple times of lagging supporting are sequentially carried out on the rear portion at the interval of 0.6 m along with the excavation progress; when the top is pressed, the wear-resistant gasket is used for achieving first-stage energy absorption, the energy absorption material is used for achieving second-stage energy absorption, deformation pressure sensing is conducted through the intelligent sensor, and early warning reminding is conducted through the monitoring terminal; dismounting and recovering the top protection type U-shaped steel and the wall protection type U-shaped steel; and filling and supporting the mined straight wall arch roadway by using the tail mortar. The method has high pertinence for stoping of the hanging wall surrounding rock broken thin vein and has the advantages that supporting is asymmetric, materials can be recycled, intelligent monitoring is achieved, and the supporting strength is self-adaptive.

The invention relates to the technical field of welding, in particular to a reinforcement cage seam welder which comprises a main reinforcement guide plate and a welding head which are assembled on a seam welder body, a rotating ring is mounted on the front side of the main reinforcement guide plate, and a guide rod is mounted on the front side of the rotating ring; the front side of the rotating ring is connected with a mounting seat, the front side of the mounting seat is slidably connected with a moving rod, a first tension spring is arranged between the mounting seat and the moving rod, the front end of the moving rod is connected with a sliding rod, the sliding rod is provided with a sliding groove, the sliding groove is composed of a first groove body and a second groove body, the first groove body extends in the circumferential direction of the reinforcement cage, and the top end of the second groove body communicates with the bottom end of the first groove body; and one end of the welding head is inserted into the sliding groove in a sliding mode. The welding head can be quickly positioned to the joint, the positioning efficiency is improved, the contact time of the welding head and the joint is prolonged, welding is firmer, the device operates continuously, and the situation that the device is seriously abraded due to frequent shutdown and starting is reduced.

The invention discloses a soil moisture monitoring device for saline-alkali soil, and relates to the technical field of soil moisture monitoring, the soil moisture monitoring device comprises a first threaded rod and a connecting plate, the inner side of the first threaded rod is provided with a detection assembly, and the end, away from a detector, of the first threaded rod is fixedly connected with a first turntable; a second rotating disc is fixedly connected to the end, away from the first threaded rod, of the second threaded rod, multiple first movable rods are movably connected to the side, away from the first rotating disc, of the connecting plate, reinforcing assemblies are arranged on the inner sides of the multiple first movable rods, and stretching assemblies are arranged on the sides, close to the first threaded rod, of the multiple first movable rods; the vertical distribution condition of soil moisture can be more accurately reflected through segmented monitoring of the detector, the drill bit can go deep into the ground by arranging the reinforcing assembly, the stability of the device in the soil can be enhanced through the reinforced device, and the direct influence of the external environment on the monitoring sensor can be effectively isolated by arranging the stretching assembly.

The utility model relates to the technical field of clamps, in particular to a centrally-mounted motor shell tool clamp which comprises a base and a plurality of fixing columns used for bearing half shells, the fixing columns are perpendicularly arranged on the base, the end faces, away from the base, of the fixing columns abut against mounting holes of the half shells, and the fixing columns are arranged on the base. The base is further provided with a pressing assembly used for pressing the edges of the half shells from top to bottom. The semi-shell grinding device has the effects of improving the stability of the semi-shell grinding process and improving the assembly precision of the middle motor shell.