202results about How to "Avoid using influence" patented technology

The utility model relates to the technical field of atomization devices, and discloses an anti-blocking rotatable atomization device which comprises an atomizer body, and a medicine outlet channel and a medicine outlet pipe are arranged on the atomizer body. The rotary changing assembly comprises a rotary disc and a positioning piece, the rotary disc is rotationally connected to the atomizer body through a rotating shaft, a plurality of containing grooves are formed in the rotary disc in the circumferential direction at equal intervals, the medicine outlet channel and the medicine outlet pipe are communicated through the containing grooves, atomizing pieces are arranged in the containing grooves, and the positioning piece is arranged on the atomizer body and is in limiting fit with the rotary disc; and the mounting assembly comprises a plurality of mounting pieces, a plurality of long holes are formed in the outer side wall of the rotating disc in the circumferential direction at equal intervals, the long holes communicate with the containing grooves, the mounting pieces are arranged on the long holes, and the atomization pieces are mounted in the containing grooves through the mounting pieces. The device is simple in structure and convenient to use, nebulization treatment is prevented from being affected when the nebulization sheet is blocked, the nebulization sheet is convenient to disassemble and clean subsequently, stable use of the device is guaranteed, and stable nebulization treatment is guaranteed.

The five-axis numerical control machine tool comprises an electric push rod and a machine box, a sealing plate arranged on the machine box rotatably exposes an internal machining space, the bottom of the machine box communicates with a clamping assembly, the bottom of an inner cavity of the machine box is fixedly connected with a protection assembly, and the top of the protection assembly is slidably connected with an auxiliary frame. A cooling assembly is fixedly connected to the position, away from the protection assembly, of the machine box. According to the five-axis numerical control machine tool for workpiece milling, the situation that the temperature of a milling device and the temperature of a workpiece are too high, so that use of equipment is affected is avoided, and therefore the situation that the surface of the workpiece is scratched due to the fact that chippings are accumulated on the clamping assembly is avoided, the machining precision of the milling device is improved, and the workpiece machining difficulty is reduced; and the influence of circulation of the cooling liquid on cooling is avoided, the workpiece machining integrity is ensured, and chippings generated by the workpiece and the cooling liquid are collected through the clamping assembly.

The utility model discloses a blanking device for an ammeter withstand voltage tester, which relates to the technical field of instrument production and comprises a support table, a transportation unit, a baffle and a detection unit. The supporting tables are of two parallel table-shaped structures, and the four corners of the lower ends of the two supporting tables are fixedly connected with the upper ends of the four supporting legs correspondingly. The conveying unit comprises a conveying belt, a bottom plate, a material blocking air cylinder, a detection probe and a positioning assembly, the conveying belt is arranged between the supporting tables, the upper ends of the inner surfaces of the supporting legs are fixedly connected with the four corners of the bottom plate correspondingly, and the upper end of the bottom plate is fixedly connected with the lower end of the material blocking air cylinder; the right end of the inner surface of the baffle is fixedly connected with two corresponding detection probes, and the positioning assembly is installed at the upper end of the conveying belt. According to the discharging device for the electric meter withstand voltage tester, the connecting wires can be controlled through the reset rod, the connecting wires are prevented from being wound together, the electric meters are automatically classified and discharged, and manpower and material resources are reduced.

The invention relates to the technical field of mullite brick production, in particular to a mullite brick production pouring device which comprises a conveying frame. The storage barrel is arranged above the conveying frame through a supporting frame; the fixing frame is fixedly mounted on the top surface of the conveying frame; the air cylinder is fixedly installed on the top face of the fixing frame, and the telescopic end of the air cylinder penetrates through the top face of the fixing frame; the pressing plate is fixedly installed at the telescopic end of the air cylinder. Compared with the prior art, by arranging the pressing plate and the cleaning assembly, in the resetting process of the pressing plate, a third transmission gear drives a connecting rod to rotate, a coil spring accumulates force, and when the pressing plate is completely reset, the coil spring releases energy, drives the connecting rod to rotate reversely and drives a reciprocating lead screw to rotate, so that a sliding plate is driven to slide back and forth along a guide rod, and a cleaning scraping plate cleans the bottom face of the pressing plate; the bottom face of the pressing plate can be automatically cleaned after the pressing plate is used every time, residues are prevented from affecting next-time use, and therefore automatic cleaning of the bottom face of the pressing plate and collection of materials are achieved.

The walking machine with the rotatable screen comprises a main body frame, a supporting column is movably installed on the main body frame, a rotating shaft is movably installed on the supporting column, and limiting assemblies used for limiting the supporting column to rotate on the main body frame and limiting the rotating shaft to rotate on the supporting column are arranged between the supporting column and the main body frame and between the supporting column and the rotating shaft. Handrails are fixed to the two ends of the rotating shaft, and a rotating seat is movably connected to the middle of the rotating shaft. According to the walking machine with the rotatable screen, the rotating shaft capable of rotating is arranged on the supporting column, the handrail is fixed to the rotating shaft, and the handrail can be unfolded to a horizontal state or hidden on the inner side of the supporting column through rotation of the rotating shaft, so that the function of the walking machine in use is increased, and the influence on use of the walking machine when the handrail is not used can be avoided; meanwhile, the digital display screen on the rotating shaft can rotate through the rotating seat, so that the digital display screen can work in cooperation with folding and unfolding of the handrail, and the normal use state of the digital display screen is guaranteed.

The invention relates to the technical field of anti-blocking of air preheaters, in particular to an anti-blocking device for a boiler air preheater, which comprises an air preheater and an air outlet hopper fixedly connected to the circumference of the bottom of the air preheater, and an air inlet hopper is fixedly connected to the top of the air preheater along the circumference. Preheating pipes are evenly and fixedly connected between the top and the bottom of the air preheater in a penetrating mode at intervals, a transverse plate is fixedly connected to the inner side of the air preheater, and the preheating pipes fixedly penetrate through the transverse plate. When flue gas is discharged into the preheating pipe, an electric heating wire is started, then an electric lead screw is started to rotate forwards and backwards alternately to drive an n-shaped plate to move up and down, the n-shaped plate drives a scraping plate to move up and down, and the scraping plate drives the electric heating wire to move up and down to heat the lower portion of the preheating pipe, so that the temperature of the preheating pipe is higher than the dew point of water vapor and acid gas in the flue gas; and meanwhile, dust attached to the outer wall of the preheating pipe is scraped away through a scraping plate, blockage caused by dust attached to the inner wall of the preheating pipe can be prevented through the heating effect of a spiral scraping plate and an electric heating wire, and therefore the smoke flowing efficiency is improved.

The utility model relates to the technical field of constant-speed driving shafts, in particular to a constant-speed driving shaft ball cage, in the using process, when the angle of a shaft core deflects, six balls in the ball cage correspondingly roll along guide rails arranged on a shaft shell and the shaft core, and when the shaft core rotates, the balls are driven to rotate at the same time. In the transmission process, due to the fact that the positions of the six balls inside are not changed properly, the six balls continuously extrude the limiting plate, the limiting plate continuously resets under the action of the elastic force of the spring, the limiting plate is made to be tightly attached to the shaft sleeve all the time, and the situation that the balls inside are disengaged from an original rail is avoided. The limiting cover is in threaded connection with the side end of the shaft shell, the balls are limited, the effect of preventing the internal balls from being separated from an original rail to affect use is achieved, the device is disassembled and assembled by unscrewing the limiting cover, and the effects that disassembly and assembly are convenient, maintenance is facilitated, and the service life is prolonged are achieved.

The invention discloses a spectrophotometer and a gas detection method, and relates to the technical field of spectrophotometers, the spectrophotometer comprises a spectrophotometer body, a detection chamber and a detector, a detection mechanism is arranged in the spectrophotometer body, and an auxiliary mechanism is arranged on the spectrophotometer body. The first overturning frame and the second overturning frame are overturned upwards to be closed, the inserting block is inserted into the inserting groove to enable the wedge-shaped clamping block to be extruded and retracted, and when the inserting block is completely inserted into the inserting groove, the wedge-shaped clamping block is automatically clamped with the clamping groove under the rebound effect of a third spring; the first overturning frame and the second overturning frame are locked and fixed when being closed, then a limiting rod is pulled downwards along a limiting groove to enable dustproof cloth to stretch downwards, closed dust prevention is conducted on the operation portion of the spectrophotometer in cooperation with a dustproof cover plate, and meanwhile a user can lift and carry the spectrophotometer through a handle groove. And the portability and the practicability of the spectrophotometer are improved.

The invention discloses optical cross connection equipment and a use method thereof, and relates to the technical field of network equipment. The optical cross connection equipment comprises a connection equipment body, a fixing block, a driving mechanism, an anti-falling mechanism and a shielding mechanism, wherein the connection equipment body is provided with a plurality of input interfaces; the fixing block is arranged at the side part of the connecting equipment body, and a first connecting block and a second connecting block are arranged in the fixing block; the driving mechanism is used for driving the first connecting block to move in the first direction and the second connecting block to move in the second direction. The anti-falling mechanism comprises M moving blocks, each moving block is provided with N moving cavities and N elastic pulling mechanisms, sliding blocks are installed in the moving cavities, and anti-falling plates are fixed to the sliding blocks; the elastic pulling mechanism is connected with the sliding block; the shielding mechanism comprises N shielding plates and is used for shielding or opening the input interface. According to the invention, a plurality of or single connecting lines can be limited or unlimited, avoidance can be carried out during connection, and the input interface can be shielded when connection is not carried out, so that impurities are prevented from entering.

The utility model relates to the field of signal receivers, in particular to an underground signal amplifying and enhancing receiver for subways, which comprises an enhancer, a holder and a limit tube, a plurality of connectors are arranged on two sides of the enhancer, the limit tube is arranged on one side of each connector, the limit tube is fixedly connected onto the enhancer, and the holder is fixedly connected onto the enhancer. A power line is arranged on one side of the limiting pipe, the terminal of the power line penetrates through the limiting pipe and is inserted into the connecting port, one side of the terminal of the power line is connected with a clamping ring in a clamped mode, one end of the clamping ring is fixedly connected to the top of the limiting pipe, and the limiting pipe is located at the top of the clamping device. One end of the clamp holder is fixedly connected to the side edge of the intensifier, the terminal of the power line is inserted into the limiting pipe and enters the connecting port, and in order to prevent the power line and the transmission line from loosening and falling off, a worker pulls the clamping ring, so that an opening in one side of the clamping ring is clamped on a line pipe of the power line, and the power line is limited and clamped.

The invention, which relates to the technical field of cable fault detection, discloses a cable overheating fault detection apparatus comprising a bottom plate and a detection assembly. A first electric telescopic rod is mounted in the middle of the upper side of the bottom plate, a storage battery is mounted at the right end of the upper side of the bottom plate, a mounting table is mounted on the left section of the upper side of the bottom plate, a displayer and a PLC are mounted on the front side of the mounting table, and an I-shaped supporting frame is fixed to a telescopic arm of the first electric telescopic rod; an adjusting assembly and a clamping assembly are installed on the side face of the I-shaped supporting frame, and the adjusting assembly is connected with the clamping assembly; the detection assembly comprises a fixing frame, a mounting box, a mounting plate and a gas sensor, the fixing frame is fixed to the upper side of the I-shaped supporting frame, the mounting box is fixed to the upper end of the interior of the fixing frame, an opening is formed in the upper side of the mounting box, and the mounting plate is fixed to the interior of the opening, the detection effect can be improved, and detection blind areas are avoided.

The utility model belongs to the technical field of anchor bolt mounting piece, especially a kind of anchor bolt mounting piece, including bolt and fixed sleeve, the lateral wall of bolt is provided with fixed sleeve, the top of bolt is provided with fixed assembly, the fixed assembly is provided with limit component, the fixed assembly includes fixed shell, the bottom surface of fixed shell is rotatably connected with rotating disc, the bottom surface of rotating disc is fixedly connected with limit shaft, the bottom of rotating disc is provided with backing pad, the lateral wall of fixed sleeve is rotatably connected with limit plate, limit hole is arranged in the backing pad and limit plate, installation groove is arranged in the fixed shell, fixed rubber is arranged in the inside of installation groove.The anchor bolt mounting piece, by setting limit shaft and limit hole, it is convenient to limit fixing for fixed shell, i.

The utility model discloses an integrated putty powder drying storage tank, which relates to the technical field of putty powder storage and comprises a storage tank body, the top of the storage tank body is provided with a drying component through bolts, and the drying component is used for ensuring that the internal space of the storage tank body is in a dry state. And the drying assembly comprises a drying cylinder, a drying agent and a blocking net, the drying cylinder is installed at the top of the storage tank body in a penetrating mode through bolts, the drying agent is installed in the drying cylinder, and the blocking net is installed on the inner wall of the bottom of the drying cylinder. Moisture in the storage tank body is absorbed through the drying agent, the blocking net provides an installation space for the moisture in the storage tank body to enter the drying cylinder, the interior of the storage tank body is kept in a dry state by absorbing the moisture, and the situation that putty powder is agglomerated due to the moisture, and use is affected is avoided.

The utility model relates to automobile door panel combination testing fixture technical field, concretely relates to a kind of automobile door panel combination testing fixture with bottom mobile support structure, including seat and structural assembly;Structural assembly includes pulley seat, bottom plate, support rod, column, frame, testing fixture body and adjusting component, pulley seat is fixedly installed in the side of seat, column is fixedly connected with seat, and located in the side of seat close to pulley seat, support rod is slidably connected with column, and located in the side of column away from seat, bottom plate is fixedly connected with support rod, and located in the side of support rod away from column, frame is fixedly connected with seat, and located in the side of seat close to column, testing fixture body is installed in the side of seat away from pulley seat by bolt, adjusting component is connected with frame, and is connected with support rod, and is connected with column, avoid the displacement of device caused by the thrust generated in use, further influence staff's use to device, to improve the use effect of device.

The present application relates to the technical field of coal mine conveying, and particularly relates to a mine scraper chain structure, which comprises a chain body, a mounting plate, a spring one, a spring two, a telescopic baffle, a contact plate, a threaded column, a lifting box and a telescopic plug plate, and the chain body is arranged in parallel in the left-right direction and has two; the mounting plate is placed on the two chain bodies, the height of the lifting box is adjusted, the telescopic plug plate is pulled out from both ends and passes through the eyelet in the chain body, the lifting box is adjusted upward again, the telescopic plug plate is tightly pressed on the inner upper surface of the chain body, the end of the telescopic plug plate and the mounting plate is fixed by using a bolt and a nut, quick installation is completed, the operation is convenient, the connection is stable, the fastening property is good, when conveying materials, the telescopic baffles on both sides are pushed outward by the spring two, the contact plate is tightly attached to the inner walls on both sides of the groove, the scraper body is always tightly attached to the groove bottom by the spring one, thereby effectively reducing the gap, reducing the conveying omission of the materials and improving the conveying efficiency of the device.

The invention relates to the technical field of intelligent fire fighting, and discloses an unattended indoor fire-fighting robot which is characterized in that the discharge end of one side of a pressurizing box is connected with a fire extinguishing nozzle, the other side of the top of a mounting plate is provided with a monitoring box, and the bottom of the monitoring box is provided with a monitoring instrument for fire monitoring; according to the fire extinguishing device, the limiting winding box is driven by the threaded seat to rotate, winding and unwinding of the traction cable are achieved, the rotating pipe automatically deflects to the horizontal position under the dead weight by unwinding the traction cable, fire extinguishing dry powder is conveyed into the rotating pipe, the fire extinguishing dry powder is evenly distributed to a fire extinguishing area through the distribution holes, and the fire extinguishing effect is improved. The fire extinguishing dry powder is sprayed to the fire extinguishing position in a circumferential distribution mode by combining rotation of the rotating pipe, so that the fire extinguishing dry powder can surround the fire position in a cylinder shape, the use effect of the fire extinguishing dry powder is improved, the actual fire extinguishing isolation area is expanded, the fire area is rapidly isolated, fire spreading is prevented, and loss is reduced.

The utility model discloses a support which comprises a base, a supporting frame movably installed on the base and a supporting block installed on the supporting frame. The limiting piece is arranged on the base and matched with the supporting frame to play a role in limiting and guiding, and the anti-disengagement base is installed at one end of the supporting frame to play a role in limiting and disengagement prevention of movement of the supporting frame. Through the arrangement of the anti-falling seat, the upward moving stroke of the supporting frame is limited, and the supporting frame is prevented from falling off from the base; the lock chain is connected to the plug pin, the lifting handle is arranged on the lock chain, the support is convenient to carry and lift through the arrangement of the lifting handle, the anti-falling effect is achieved through the arrangement of the lock chain when the plug pin is inserted into the supporting frame, and the installation position of the plug pin is adjusted by conveniently disconnecting one end of the lock chain from the plug pin through the arrangement of the elastic buckle and the through hole; and meanwhile, the bracket can also play a role in preventing the parts from being lost when being stored, so that the influence on use caused by the loss of part of the parts due to the stacking of the scattered parts when the parts need to be used is avoided.

The utility model relates to a multifunctional automobile steering wheel, in particular to a pressing switching roller structure and a multifunctional automobile steering wheel, which comprise a steering wheel body, two mounting cavities are arranged at the top of the steering wheel body, and top covers are fixedly connected outside the two mounting cavities. Switching assemblies are arranged in the two mounting cavities, each switching assembly comprises a mounting column and limiting clamping teeth, button assemblies are arranged at the tops of the two limiting clamping teeth, and the two button assemblies are located in the two mounting cavities correspondingly; according to the pressing switching roller structure and the multifunctional automobile steering wheel, the use safety effect of the device is improved, a driver can still hold the steering wheel body with the two hands when pressing the operation button, and therefore the use safety effect of the device is improved when the device is used for driving an automobile, and the safety of the device is improved. And meanwhile, when button operation is carried out, the device can carry out pressing switching on the buttons, and the using effect of the device is improved.

The utility model relates to the technical field of demoulding gripper, concretely is a demoulding gripper antiskid rubber pad, including the butt joint board, the butt joint board's bottom is installed with the mechanical arm, one side fixed mounting of mechanical arm has the mounting panel, one side swing mounting of mounting panel has the clamping plate, the both sides of clamping plate are opened the threaded hole, the outer end swing mounting of clamping plate has the dismounting cover, the one side fixed mounting of dismounting cover in the one side close to butt joint board middle part has the antiskid rubber pad body, the both sides of dismounting cover are opened the mounting hole, the both sides swing mounting of dismounting cover have the bolt, the bolt penetrates the mounting hole, the bolt extends to the inner end of threaded hole, the bolt threaded connection threaded hole, the utility model, through installing clamping plate and dismounting cover, the antiskid rubber pad is replaced after long -time use, avoids the influence use after the antiskid rubber pad wear, reduces the downtime, improves the production line efficiency, reduces the maintenance cost, improves the practicality.

The present invention discloses a portable lymphedema drainage device, and relates to the technical field of lymphedema drainage. The portable lymphedema drainage device comprises a storage device, a sleeve device arranged in the storage device, a pressure device placed in the storage device, and a massager placed on one side of the pressure device. The sleeve device comprises two groups of pressure sleeves, one group of pressure sleeves is an upper limb pressure sleeve, and the other group of pressure sleeves is a lower limb pressure sleeve; both sides of the pressure pump device are respectively provided with hanging parts for connecting with the pressure sleeves. The device can select different massage modes according to the drainage site and environment, improve the selectivity, monitor the massage pressure in real time, adjust the massage pressure according to the needs of the user, improve the correctness and effect of lymphatic drainage, and facilitate medical staff to monitor the use of the equipment in real time, and is easy to store and carry, and convenient for mobile use.

The utility model discloses a kind of commercial electromagnetic range with intelligent internet of things function, it is related to electromagnetic range field, including cooktop, electromagnetic range body is rotatably connected on the cooktop, the internet of things intelligent chip is built-in in electromagnetic range body, the front side of electromagnetic range body is provided with control panel, the rear side of the top of cooktop is fixed with oil baffle;The front side bottom of electromagnetic range body is equipped with support seat, the left and right side edges of electromagnetic range body are symmetrically provided with sliding slot, and sliding slot is slidably connected with cleaning frame, the cleaning frame is set on the top front side of electromagnetic range body, this commercial electromagnetic range with intelligent internet of things function, in use process, the parameter of electromagnetic range can be set by internet of things cooperation control panel and intelligently controls, operator does not need to be always on guard, and after electromagnetic range is collected after overturning, electromagnetic range surface can be cleaned simultaneously, reduce liquid residue, keep the neatness of electromagnetic range use surface, facilitate subsequent use.

The utility model discloses glass fiber mesh weaving equipment, and relates to the technical field of looms. The sucking and removing mechanism is arranged on one side of the knitting machine and used for cleaning knitted grids, the sucking and removing mechanism comprises a lifting component and a collecting cavity, the lifting component is arranged on one side of the knitting machine, the collecting cavity is formed in the lifting component, and an anti-backflow plate is fixedly connected into the collecting cavity; and the winding mechanism is arranged on one side of the knitting machine. According to the glass fiber mesh weaving equipment, finished glass fiber meshes can be sucked and removed during winding through the suction and removal mechanism, fine glass adhered to the finished products in the production process is limited and cleaned, the situation that the glass is adhered to the finished products, and overall use is affected is avoided, and the glass fiber mesh weaving equipment has the advantages that by means of the winding mechanism, the glass fiber mesh weaving efficiency is improved. And the relative distance between the multiple expanding and supporting rods can be controlled, so that the device can adapt to winding drums of different sizes for use, and the flexibility of the device in the using process is improved.

The utility model discloses a non-inductive card punching device, which relates to the technical field of site card punching, and comprises a pedal, two vertical plates are fixed on the outer surface of the pedal, a rotating shaft rotates on the inner wall of a groove plate, and a limiting plate is used for limiting the position of the rotating shaft, so that two cameras can better recognize the face of a worker standing on the pedal, and the working efficiency is improved. Meanwhile, a driving motor is used for driving a gear and a rack to operate, so that a camera fixed on a supporting column moves back and forth on one side of a pedal, and therefore, the device can more effectively carry out non-inductive card punching on a worker, and the situation that the operation burden of a specially-assigned person is increased due to the fact that the worker carries out card punching manually is avoided; a sliding rod fixed to the inner wall of a sliding groove slides on the inner wall of a sliding block, stable sliding of a rack on one side of a connecting column is facilitated, so that the stability of back-and-forth movement of the camera is improved, the accuracy of face recognition of a worker by the device is ensured, and the outer wall of a vertical rod is sleeved with the inner wall of a hole column till the vertical rod is matched with the inner wall of a groove block.

The utility model discloses a stable mold protection switch which comprises a fixing block, a detection sensor is installed on the fixing block, the detection sensor is an inductance type proximity switch, the detection sensor is electrically connected with a machine mold opening and closing signal line, and when the detection sensor detects an ejector pin fixing plate, mold closing is completed and an instruction is sent to a machine. A first magnet block is mounted on one side of the fixed block, a second magnet block is mounted on one side, adjacent to the first magnet block, of the fixed block, and when in use, one side of the fixed block is fixed on a movable mold plate through the first magnet block, and the side, adjacent to the first magnet block, of the fixed block can be fixed on a rear mold bottom plate through the second magnet block; compared with an existing mold protection switch, the mold protection switch is good in stability, the fixing block can be prevented from rotating when the mold protection switch is used, and therefore use of the mold protection switch can be prevented from being affected.

The invention relates to the technical field of fitness, in particular to a fitness sandbag mounting rack based on mass health, which comprises a support, struts are arranged above the support, the struts below sleeves are fixedly connected with the support, the struts on the same side are fixedly connected through connecting rods, two groups of control boxes are fixedly connected to the side surfaces of one group of sleeves, and the two groups of control boxes are fixedly connected with the sleeves. The control box is communicated with the sleeve, a first gear is arranged in the control box, a center shaft of the first gear is connected with the inner wall of the control box through a bearing, tooth grooves are evenly formed in the surface, located in the sleeve, of the supporting column, and the tooth grooves are meshed with the first gear, so that the situation that the supporting column cannot move easily after being installed is avoided; the device is simple in structure and convenient to use, the influence of the external environment on use of the device is avoided, mounting and folding are convenient, a user can adjust the height of the device through simple operation by means of the structure, the height of the sandbag is adjusted, and the device can freely adjust the position of the sandbag according to the height of the user.

The invention provides a method and a system for quickly recovering a network after roaming switching in Mesh networking, which are characterized in that the network can be quickly recovered through all-node information synchronization when wireless terminal equipment is online, real-time updating in a use process, direct loading of backup information after roaming and backup state maintenance of an original node. The function of quickly recovering network connection during roaming switching is realized. The connection information and various table items of the wireless terminal equipment do not need to be regenerated after roaming, the network service interruption time during roaming switching is shortened to the maximum extent, it is guaranteed that the wireless terminal equipment keeps a high-quality access state through roaming switching, the influence of transient network interruption on use of a user in the switching process is avoided, and the user experience is improved. And the user experience of Mesh networking is obviously improved.

This invention discloses a smart building energy consumption optimization and comfort control system based on BIM-IoT integration, comprising: a BIM-IoT integrated digital twin module; a load prediction module based on a thermodynamic model; a multi-system collaborative optimization control module; and an equipment fault diagnosis module. By constructing a building digital twin model and integrating BIM static parameters and IoT dynamic data, this invention achieves accurate prediction of building heat load, multi-system collaborative optimization control, and intelligent balance between energy consumption and comfort, thereby significantly reducing building operating energy consumption and improving user experience.

The utility model relates to the field of foundation pit supporting, in particular to a foundation pit supporting device not prone to deformation. The technical problems that in the use process of foundation pit supporting, a plurality of reinforced concrete bodies are adopted as supporting bodies to support the inner wall of the single side of a foundation pit, the bending moment of the supporting structure is small, and meanwhile the soil pressure resisting capacity is poor are solved. According to the technical scheme, the foundation pit supporting device not prone to deformation comprises a bottom plate; the foundation pit supporting device further comprises reinforcing assemblies and auxiliary assemblies, the reinforcing assemblies are arranged at the four corners of the top end of the bottom plate and used for reinforcing the foundation pit supporting device, and the auxiliary assemblies used for assisting in reinforcing are arranged at the bottom end of the bottom plate. The supporting device is installed, rotated and fixed under the force cooperation of the steel supports, the annular steel frames and the steel pull rods, the use stability of the supporting device is guaranteed, and when the supporting device is used, the reinforcing rods are arranged, so that the situation that the supporting rods and the girders deform in the long-term use process, and the use effect of the supporting device is affected is avoided.

The application discloses to the technical field of pipeline, specifically a kind of pipeline for heating, ventilation and air conditioning central heating, including pipeline main body, the four around of inner ring surface in the middle of pipeline main body are fixed with mounting block, the four around of opposite surface of first rotating ring are fixed with first fixed plate, the side of first fixed plate close to inner ring surface of pipeline main body is fixed with a plurality of first brush at intervals, second connecting rod is rotatably installed on the side of mounting disc away from first connecting rod, the side of second fixed plate close to inner ring surface of pipeline main body is fixed with a plurality of second brush at intervals, the beneficial effects of the present application are: it is convenient to clean dirt or dust in the pipeline main body, to avoid the accumulation of dirt or dust after long-term use of pipeline main body, to prevent the accumulation of dirt or dust in the pipeline main body from affecting use, to help prevent clogging in the pipeline main body, to facilitate normal use of pipeline main body.