79results about How to "Improve air flow" patented technology

The invention relates to the technical field of heat dissipation devices, in particular to a flow compensation drainage fan which comprises a fan body and a drainage device, and at least two jet flow holes are formed in the surface of the side, close to the drainage device, of the fan body; the drainage device is provided with an open drainage cavity which is defined by a top wall, a bottom wall and a side wall and enables airflow to be sprayed out in the set direction, the airflow generated by the fan body is sprayed out through the jet flow holes, surrounding air is entrained, and primary drainage is formed. The through-flow areas of the drainage channels are sequentially increased in the set direction, or the drainage holes are formed in the designated positions of the wall face of the drainage device, so that at least one time of secondary drainage can be generated when airflow flows in the open drainage cavity, and then the airflow finally sprayed out of the side wall flow outlet is substantially increased, so that the heat dissipation efficiency is improved.

The invention discloses a heat dissipation type remote network automatic control server, and relates to the technical field of control servers, the heat dissipation type remote network automatic control server comprises a control server case, a dustproof plate arranged on the control server case, a heat dissipation module installed on the dustproof plate and equipped with a power supply, and a dustproof partition plate arranged on the dustproof plate, the dustproof partition plate is fixed to the dustproof plate through a connecting piece, the dustproof plate is provided with a disassembly and assembly mechanism matched with the control server case, and the dustproof plate and the heat dissipation module can be rapidly disassembled from the control server case through the disassembly and assembly mechanism; the ash removal unit is mounted on the heat dissipation module; through the integrated design of the dustproof plate and the heat dissipation module, the cleaning process is simplified, a user can easily disassemble the dustproof plate, meanwhile, the heat dissipation module can be disassembled, simultaneous cleaning is facilitated, the problem that dust of fan blades in traditional equipment is difficult to clean is solved, the convenience of equipment maintenance is improved, and the cleaning and maintenance work is simplified.

The invention discloses an automatic metal pipe extrusion forming device for a vacuum pump, and relates to the technical field of metal pipe preparation, the automatic metal pipe extrusion forming device comprises an extruder, a feeding hopper is fixedly connected to the top surface of the extruder, a cavity is formed in the side wall of the extruder, a cooling cavity is formed in the bottom end of the extruder, and a fixing frame is fixedly connected to the end surface of the extruder; a motor is installed in the fixing frame, a screw rod is fixedly connected to the output end of the motor, and a flow dividing block is fixedly connected to the inner surface of the output end of the extruder. The cooling device has the advantages that the cooling efficiency of the metal pipe and the production efficiency of the metal pipe can be synchronously adjusted, the material blocking phenomenon is avoided, and normal production work is guaranteed; meanwhile, manual step-by-step operation is not needed, control elements are correspondingly reduced, the wire arrangement difficulty and cost input are reduced, meanwhile, the cooling mechanism and the extruder coincide, external matching devices are not needed, and therefore the occupied area of the device is greatly reduced, and the working space can be fully utilized.

The invention relates to the technical field of storage equipment, and particularly discloses intelligent warehouse classified storage equipment based on industrial process optimization, which comprises a storage rack body, a plurality of storage plates are movably mounted in the storage rack body, a fixing mechanism is arranged at the top of each storage plate, and a damp-proof mechanism is arranged on the storage rack body. And a movable plate is movably mounted on the outer side of the storage rack body. By arranging the storage plates, the base plates, the L-shaped supporting plates and the air outlets, when cargo boxes are placed on the device, the distance between the storage plates is automatically adjusted according to the sizes of the placed cargo boxes, the stored cargo boxes are automatically classified, and the storage space is automatically adjusted, so that the use convenience of the device is improved; and meanwhile, the storage space in the storage rack body can be fully utilized, waste of the storage space is reduced, the intelligence of the device is improved through the full-automatic operation mode, and the device better meets the convenient operation requirement in industrial process optimization.

The invention belongs to the field of temperature regulation and control, and particularly discloses a chemical medicine storage cabinet temperature regulation and control method and system, and the method comprises the steps: firstly, carrying out the temperature conformity analysis, dividing regions through internal partition plates, collecting the temperature, and judging whether the temperature in a storage cabinet meets the requirements or not; if not, external environment regulation is carried out, the external environment temperature is collected, the deviation coefficient of the external environment temperature is determined, and the target regulation temperature is set. And then temperature uniformity analysis is carried out, the temperature of the set acquisition points of each region after regulation and control is acquired, a temperature distribution uniformity index is obtained, and regions with non-uniform temperature distribution are screened out. And finally, carrying out temperature uniformity adjustment, collecting the temperature of each collection point in the non-uniform areas, analyzing the temperature influence coefficient, further analyzing the target regulation distance between the internal partition plate and the cabinet wall, and carrying out adjustment, thereby realizing effective control on the temperature of the chemical medicine storage cabinet, and ensuring a proper medicine storage environment.

The utility model discloses a central controller and a through-type detection device. The central controller comprises a shell and a host arranged in the shell. The host comprises a case and a plurality of circuit boards arranged in the case; the case is hollow and is provided with a first ventilation opening and a second ventilation opening which penetrate through the interior; the shell is provided with an air inlet and an air outlet, the first ventilation opening is communicated with the air inlet, and the second ventilation opening is communicated with the air outlet. The central controller provided by the utility model is used for discharging airflow entering the first ventilation opening out of the case through the second ventilation opening after passing through the plurality of circuit boards. According to the central controller provided by the utility model, the heat generated and gathered by each circuit board in the case is effectively reduced, the adverse phenomenon of carbonization or burnout of each circuit board due to untimely heat dissipation is avoided, the service life of the central controller is prolonged, and the sensitivity and reliability of the through-type detection device are improved.

The invention relates to the technical field of energy storage power supplies, and discloses a battery compartment for temperature control adjustment of an energy storage power supply and a battery module thereof.The battery compartment comprises a compartment body assembly, an air supply assembly is arranged on the compartment body assembly, a supporting frame is arranged in the compartment body assembly, a battery assembly is placed on the supporting frame, and sealing assemblies are arranged on the two sides of the battery assembly; a consignment assembly is arranged at the bottom of the battery assembly, isolation plates are arranged above and below the battery assembly, a ventilation assembly is arranged at the rear end of the battery assembly, a traction block is arranged on the supporting frame, and a temperature sensor is arranged on the battery assembly; according to the invention, the sealing assembly is arranged to cooperate with the isolation plates, and the supporting frame is divided into a plurality of spaces, so that each battery assembly is independently isolated, the temperature of each battery assembly is conveniently monitored in real time subsequently, and the ventilation assembly is assisted to cool in a targeted manner; by arranging the ventilation assembly, the ventilation quantity is adjusted in real time according to the detection result of the temperature sensor.

The utility model discloses an artificial leather relates to artificial leather technical field, and its technical scheme main points are: including epidermis layer and base cloth layer, and the base cloth layer includes comb GB1 yarn, comb GB2 yarn and comb GB3 yarn, and comb GB1 yarn and comb GB2 yarn are woven and form the warp knitting mesh eye organization together, and comb GB3 yarn forms the lining weft knitted fabric, and the breathable space is formed between the adjacent two lining weft knitted fabrics, and the epidermis layer surface is provided with a plurality of breathable holes. The utility model discloses through the cooperation of breathable hole, warp knitting mesh eye organization and breathable space, greatly increases the air flow property of both sides of artificial leather, makes the whole artificial leather have better breathable effect, thereby is favorable to the fast dissipation of the peculiar smell produced, reduces the residue of peculiar smell, and the epidermis layer is PVC resin layer, and the PVC resin has better wear resistance and corrosion resistance, thereby guarantees that the whole artificial leather has longer service life.

The utility model discloses antibacterial deodorant chemical fabric, which relates to the related field of chemical fabric and comprises a chemical fabric main body, a protective pad layer is arranged on the top surface of the chemical fabric main body, a breathable pad layer is arranged on the bottom surface of the chemical fabric main body, and a first latticed layer and a second latticed layer are arranged on the upper side and the lower side of silver ion antibacterial fabric. A large amount of ventilation space is reserved in the ventilation cushion layer, when air penetrates through the silver fox velvet layer and enters the ventilation cushion layer, the air is firstly subjected to antibacterial operation through the silver ion antibacterial fabric, and bacteria are prevented from breeding in the ventilation cushion layer; meanwhile, air circulates with the silver ion antibacterial fabric to a certain degree in the first latticed layer and the second latticed layer and reaches the outside through other fabric above, so that the air circulation in the breathable cushion layer is improved, and the problem of stinking caused by internal air retention is greatly solved.

The invention discloses an anti-sticking breathable chemical fiber fabric and a processing technology, and relates to the technical field of textiles, the anti-sticking breathable chemical fiber fabric is characterized in that a plurality of first protrusions are arranged on the side, close to an outer layer, of an inner layer in an array mode, gaps between the adjacent first protrusions and the inner layer and the outer layer form first breathable spaces, gaps between the adjacent second protrusions and the inner layer form second breathable spaces, and the first breathable spaces and the second breathable spaces form second breathable spaces; a plurality of first air holes are formed in the inner layer in a penetrating mode and communicate with the first ventilation space and the second ventilation space, and a plurality of second air holes are formed in the outer layer in a penetrating mode and communicate with the first ventilation space. The fabric made of the spandex profiled fibers and the viscose fibers can timely absorb sweat generated by skin while ensuring certain air permeability, and the air circulation effect on the two sides of the fabric is enhanced through the first air holes, the second air holes, the first air spaces and the second air spaces which are communicated with one another; the second protrusions increase the gap between the fabric and the skin, so that the fabric is not prone to being attached to the surface of the skin when being worn.

The utility model discloses refrigeration equipment, which comprises a box body, a refrigerating device and a refrigerating device, the compressor chamber is arranged below the storage chamber, the compressor chamber comprises a front assembly used for forming the front face part of the compressor chamber, and the compressor chamber comprises a front baffle component, a second baffle component, a first air inlet part and a communication part communicated with the compressor chamber, the cover plate component is assembled and fixed on the front baffle component, an air inlet space is formed between the cover plate component and the front baffle component, a second air inlet part is formed on the periphery of the air inlet space, and the second air inlet part is communicated with the external space; and an airflow circulation channel is formed among the second air inlet part, the air inlet space and the communicating part. According to the novel refrigeration equipment provided by the utility model, the air inlet channel is additionally arranged on the basis of the air inlet hole of the original compressor chamber, so that the air inlet amount is increased, and the heat dissipation effect on the compressor is improved.

The utility model relates to a light controller, belongs to the technical field of light controllers, and particularly relates to a novel internet of things light controller which comprises a controller outer frame, a heat dissipation assembly is arranged in the controller outer frame, and a guide assembly is arranged in the controller outer frame. According to the utility model, air in the fixed frame can flow towards the interior of the controller outer frame through the communicating groove and also can flow towards the interior of the guide groove, and under the guidance of the guide groove, part of cold air is introduced into the central position in the controller outer frame to cool the air flowing at the central position, so that the cold air is prevented from falling off in the cooling process. The temperature is gradually increased, so that the cooling effect of the middle position in the controller outer frame is poor, and the heat dissipation effect of the controller is improved; the problem that an existing controller is inconvenient to use is solved.

This invention relates to a hyperbaric oxygen chamber system with adjustable oxygen concentration. The system includes a main unit and a chamber. The main unit comprises a main control module, an oxygen regulation module, and a pressure regulation module, all electrically connected to the main control module. The pressure regulation module includes a low-oxygen air regulation submodule and a pressure-maintaining air submodule. The pressure-maintaining air submodule includes a first air compressor, a pressure relief valve, and a first sensor. The oxygen regulation module includes a second air compressor, a separation valve, a molecular sieve tower, a flow-limiting valve, and a vacuum pump. The low-oxygen air regulation submodule includes a three-way valve and a one-way valve. This invention's adjustable oxygen concentration hyperbaric oxygen chamber system can reduce the production cost of hyperbaric oxygen chamber systems, improve the user experience, and allow the oxygen concentration within the chamber to be adjusted below that of air, thus expanding its application to low-oxygen training and testing environments.

The utility model discloses an anti-slip high-elasticity yarn, which relates to the technical field of textiles, and is characterized in that a high-elasticity yarn core consists of a plurality of elastic yarns with parallel axes, moisture absorption yarns are spirally wound on the surface of the high-elasticity yarn core, a plurality of wear-resistant yarns are spirally wound on the peripheral wall of the moisture absorption yarns, and the twisting directions of the moisture absorption yarns and the wear-resistant yarns are opposite. A breathable space is defined by the high-elasticity yarn core, the moisture absorption yarn and the wear-resisting yarn, and a plurality of anti-skid pieces are connected to the middle strand of wear-resisting yarn in a penetrating mode. The high-elasticity yarn core made of the spandex fibers enables the whole yarn to have good elasticity and elasticity recovery capacity, the manufactured ground mat is not prone to deformation and wrinkling, the moisture absorption yarn made of the ramie fibers can absorb moisture of a shoe sole in time, the shoe sole is prevented from slipping, and the service life of the shoe sole is prolonged. The overall wear-resisting effect of the yarn is improved due to the high strength and wear resistance of the polyamide fibers, the ventilation effect in the ground mat is improved due to the communicated ventilation spaces and ventilation grooves, and water in the ground mat can be dispersed and removed in time.

The invention discloses a valveless pulsating jet engine with an oval air inlet channel. The valveless pulsating jet engine is composed of a combustion chamber, the air inlet channel, a tail pipe, an oil nozzle and the like. An engine air inlet channel is of an oval flow channel structure, the air inlet channel and a tail pipe are arranged on the rear wall face of a combustion chamber, an oil nozzle is arranged on the rear half portion of the combustion chamber, and a nozzle directly faces an air inlet. The air inlet channel has the advantages that under the constraint of the limited engine section size, a circular flow channel is changed into an oval flow channel by changing the structural form of the air inlet channel, the air inlet amount of an engine is effectively increased, and therefore the thrust of the engine is improved.

The invention discloses a tuyere honeycomb guide plate structure and device suitable for uniform distribution of a wind field of large-breadth metal additive equipment, and relates to the technical field of metal 3D printing. The tuyere honeycomb flow guide plate structure comprises a tuyere honeycomb flow guide plate structure body, a third jet flow channel is arranged in the tuyere honeycomb flow guide plate structure body, the third jet flow channel is of a gradient caliber, and the third jet flow channel comprises a first jet flow channel, a fourth jet flow channel and a second jet flow channel. An air inlet is formed in the side end, close to one side, of the tuyere honeycomb guide plate structure body; air flow is introduced into the air blowing structure and rectified through the air opening honeycomb flow guide plate structures evenly distributed in the air field of the large-breadth metal additive equipment, air flow parallel to the front is obtained, the air suction structure sucks air after being externally connected with the draught fan, the air flow on the forming plane shows the uniform flow speed and the high average air flow strength, and the air flow in the forming plane is uniform in flow speed and high in average air flow strength. In this way, smoke dust at all positions in the machining process can be effectively removed.

The utility model provides a high-frequency filter heat dissipation assembly. The high-frequency filter heat dissipation assembly comprises a filter body, wherein a heat dissipation block is mounted on the front side of the filter body; a heat dissipation substrate is arranged on one side, close to the filter body, of the heat dissipation block, and the heat dissipation substrates on the two sides are tightly attached to the two sides of the filter body; a heat dissipation assembly is arranged between the heat dissipation substrate and the heat dissipation block; a mounting groove is formed in the side, away from the filter body, of the heat dissipation block, a heat dissipation fan is mounted on the inner wall of the mounting groove, and a dismounting and mounting assembly is arranged between the heat dissipation fan and the heat dissipation block. The heat dissipation substrate is tightly attached to the filter body, so that the contact thermal resistance is effectively reduced, and the heat conduction efficiency is improved; the wave-shaped radiating fins are matched with the ventilation holes, so that the radiating area and the air circulation are increased; the air guiding system composed of the air guiding groove, the flow dividing block, the flow guiding block and the air guiding plate enables airflow generated by the cooling fan to accurately and efficiently act on the cooling fins, and compared with a traditional single cooling mode, the cooling efficiency is improved.

The invention discloses a high-power charging module capable of intelligent cooling, and relates to the technical field of charging modules, the high-power charging module comprises a box body used for installing and protecting parts of the charging module, the end part of the box body is fixedly provided with function keys used for operating the charging module, and one side of the box body is fixedly provided with cooling fin plates used for cooling at equal intervals. The real-time temperature of the core working module is continuously monitored through the built-in intelligent temperature control system, once the temperature of the working module is monitored to rise to a safety threshold value of 85 DEG C, the system can be immediately activated, the cooling measure is automatically executed, and the ventilation grooves in the heat dissipation fin plates on the side face of the box body are opened, so that air circulation in the box body is enhanced, and the service life of the box body is prolonged. The temperature of the working module is effectively dispersed and reduced, the purpose of active cooling is achieved, and when the temperature of the working module falls back to the safe 80 DEG C, the active cooling assembly intelligently responds again, but the active cooling assembly executes the opposite operation of closing the ventilation grooves in the heat dissipation fin plates at this time.

This utility model relates to a control box and mattress capable of uniformly venting air. Existing airbags vent air naturally through the pressure difference with the external space, resulting in significant variations in flow rate. This utility model includes a housing, an air pump, and a main control unit. The air pump has an air intake port and an air inflation port. A secondary control unit is located between the main control unit and the air pump. The secondary control unit includes an air intake adjustment component and an air inflation adjustment component. The air intake port can be connected to the main control unit through the air intake adjustment component, and the air inflation port can be connected to the external space through the air inflation adjustment component. This allows the gas in the target space to be uniformly vented after passing through the air intake adjustment component and the air inflation adjustment component sequentially under the drive of the air pump. The secondary control unit is used to change the airflow direction, enabling the air pump to independently perform inflation and deflation operations on each target space. This effectively increases the airflow in the later stages of deflation, utilizing the power of the air pump to improve deflation efficiency and effect, while also effectively reducing the airflow in the early stages of deflation, lowering noise, and improving the user experience.

The utility model belongs to the field of cleaning, and particularly relates to vortex type air pump cleaning equipment which comprises two vertical plates. A collecting box is fixedly connected to the middle of every two adjacent vertical plates. The middle parts of the adjacent vertical plates are fixedly connected with transverse plates; the top of the transverse plate is fixedly connected with an air pump body; the top of the transverse plate is fixedly connected with a watering assembly. A plurality of first connecting rods are fixedly connected to the bottom of the transverse plate; the end parts of the adjacent first connecting rods are fixedly connected with connecting plates; the output end of the air pump body is fixedly connected with an air pipe; the air pipe and the transverse plate are arranged in a penetrating mode. The air pipe is communicated with the connecting plate; the bottom of the connecting plate is fixedly connected with elastic cloth; the bottom of the elastic cloth is fixedly connected with a pressing plate; by arranging the elastic cloth, airflow blown out by the air pump body can flow along the elastic cloth and reach the surface of the workpiece, the airflow concentration of the device is achieved, the airflow amount reaching the surface of the workpiece is increased, and the drying effect of the device on the workpiece is improved.

The utility model discloses an axial flow impeller set of a gas compressor, which comprises a rotating shaft, the rotating shaft is connected to a rotating machine, a front bent impeller set and a rear bent impeller set are arranged on the rotating shaft, the front bent impeller set is composed of a plurality of front bent impellers, each front bent impeller comprises an impeller disc and a front bent blade, and the rear bent impeller set is composed of a plurality of rear bent impellers. The backward-bent impeller comprises an impeller disc and backward-bent blades, the forward-bent blades and the backward-bent blades are obliquely arranged on the impeller disc, and a plurality of guide blades are arranged between the forward-bent impeller set and the backward-bent impeller set; the front bent blade and the rear bent blade are combined, the front bent blade is close to the air inlet, enough air can enter the air compressor, the middle of the front bent blade is transited through the guide blade, then the air flow and pressure are improved through the rear bent blade, and the efficiency of the air compressor is improved.

The utility model provides a structure for preventing water accumulation of a dial bracket, which comprises a mandrel outer sleeve, a middle core arranged on the side end face of the mandrel outer sleeve, a large-tripod mandrel rotatably arranged in the mandrel outer sleeve, and the dial bracket arranged at the lower end of the large-tripod mandrel and positioned below the middle core, when the needle disc bracket rotates along with the large tripod mandrel, the needle disc bracket drives the circulating pipes to change positions, so that external air enters the space between the middle kernel and the needle disc bracket from the circulating pipes, the air circulation between the middle kernel and the needle disc bracket is improved, the air pressure difference is balanced, and the service life of the needle disc bracket is prolonged. The phenomenon that water is accumulated on the dial tray to form accumulated water is reduced, and the accumulated water is prevented from leaking to the lower end face of the dial bracket or flowing into a searchlight and / or a cloth cover.

The present invention provides a deflector wind ring, an axial flow fan and an air conditioning unit, wherein the deflector wind ring defines an axial direction, and the two ends of the axial direction are respectively defined as an air intake port for gas to enter the deflector wind ring and an air outlet port for gas to flow out of the deflector wind ring, and the deflector includes an inlet section, a middle section and an outlet section in sequence from the air intake port to the air outlet along the axial direction, and the middle section is provided with guide holes penetrating the wall thickness. The deflector wind ring, axial flow fan and air conditioning unit of the present invention change the conventional design concept that the inner surface of the existing deflector wind ring is usually a smooth and non-porous inner wall, and open guide holes in the middle section of the deflector wind ring, which can achieve the purpose of optimizing the airflow channel and reducing the wind noise of the airflow.

The utility model discloses a staggered double-curved-surface unit type curtain wall, and belongs to the technical field of curtain walls, the staggered double-curved-surface unit type curtain wall comprises a curtain wall plate, the inner side of the curtain wall plate is fixedly connected with a panel, the curtain wall plate comprises a plate top cross beam fixedly connected to the top of the panel, the bottom of the plate top cross beam is fixedly connected with two plate stand columns, and the two plate stand columns are fixedly connected to the bottom of the plate top cross beam. The plate stand columns are fixedly connected to the two sides of the outer wall of the panel, the bottoms of the plate stand columns are fixedly connected with plate bottom cross beams, and the plate bottom cross beams are fixedly connected to the bottom of the panel. The staggered double-curved-surface unit type curtain wall has the beneficial effect that the staggered double-curved-surface unit type curtain wall is provided. The pulling rope penetrates through the rope opening back and forth and then penetrates through the clamping column in the middle to be limited, so that the pulling rope is good in stability in the pulling process and not prone to falling off and dislocation in the pulling process, a worker pulls the rope to remotely guide the trend of the curtain wall plate, the curtain wall plate does not need to be supported to move on the side of a building, and the construction risk is reduced.

The utility model discloses a large-flow wind scooper structure, and aims to provide a large-flow wind scooper structure which is simple in structure, modular in design and capable of actively increasing the volume of air flowing through a radiator by arranging a wind guide pipe structure. The radiator comprises a wind scooper assembly, a cooling fan and a radiator assembly, the wind scooper assembly comprises a wind scooper shell and a cooling fan fixing support, the wind scooper shell comprises a square air suction cavity and a circular air guide pipe, the circular air guide pipe is arranged on the air guide side of the square air suction cavity, and the square air suction cavity is communicated with the cooling fan fixing support. The cooling fan is arranged in the square air suction cavity and connected with the circular air guide pipe through the cooling fan fixing support, the radiator assembly comprises a cooling frame and a plurality of cooling fins, the cooling fins are arranged in the middle of the cooling frame, the cooling frame is connected with the connecting side of the square air suction cavity, and the square air suction cavity is connected with the cooling fan fixing support. And the cooling fan is matched with the plurality of cooling fins. The automobile radiator is applied to the technical field of automobile radiators.

The present invention discloses a gel spraying device for preventing and controlling coal spontaneous combustion in coal mine goafs, which belongs to the field of gel spraying. It comprises a bottom support vehicle seat, the top of the bottom support vehicle seat is fixedly connected with a gel solution storage tank, the top of the gel solution storage tank is fixedly connected with a top injection barrel, one side of the gel solution storage tank is movably connected with a side discharge pipe, one side of the side discharge pipe is provided with a first pump body, one side of the first pump body is provided with a side control box, one side of the side control box is movably connected with a liquid guide hose, and one end of the liquid guide hose is movably connected with a side connection seat. The present invention realizes continuous left and right swinging during the spraying of the gel solution, increases the coverage area of ​​the gel solution after being sprayed along the side nozzle of the solution, and improves the work efficiency and treatment effect. At the same time, the rotation of the ventilation fan blades improves the air circulation performance on the surface of the gel solution storage tank and enhances the heat dissipation effect of the internal heat-conducting metal ring.

The utility model relates to communication information system technical field especially a kind of server for communication information system, including server main body, the one side of server main body is equipped with blowing heat dissipation mechanism, the lower side of the other side of server main body is evenly opened and is connected with hole, the outside of the wire hole is provided with wire protection assembly, the outside lower side of the wire hole is equipped with surplus line winding mechanism. Advantageous effect lies in: the utility model is closely wrapped in the surface of cable by protective sleeve, improves dustproof and moisture-proof performance, avoids dust and water vapor to enter the inside of wire hole and influences the safety of wiring;After keeping cable wiring, wiring is clear and neat and not scattered, it is convenient for subsequent maintenance gap and replacement cable, avoid that cable is pulled and dragged when, pull off the connecting line between cable and wire hole, keep server main body safe and stable connection use.

The invention discloses a pressure-equalizing pulse ash removal nozzle, which solves the problem of non-uniform pulse ash removal in the prior art and saves the amount of compressed air consumed by blowing. The pressure-equalizing pulse ash removal nozzle comprises a nozzle body, the upper end and the lower end of the nozzle body are an air inlet end and an air outlet end respectively, and a flow guide wall is arranged between the air inlet end and the air outlet end; the flow guide wall is arranged in a reducing mode in the direction from the air inlet end to the air outlet end. An air inlet pipe and a negative pressure air inlet surrounding the air inlet pipe are arranged in the air inlet end; the air inlet pipe is used for being connected with an injection pipe of a pulse injection system, the outer wall of the air inlet pipe is arranged to be a conical surface, and the radius of the conical surface is gradually decreased in the air inlet direction of the air inlet pipe. The slope of the conical surface is 30-50 degrees, and the length of the air inlet pipe is 70-80 mm; a flow guide column arranged in the axis direction of the nozzle body is arranged in the air outlet end, and cones are arranged at the upper end and the lower end of the flow guide column.

The invention discloses a synchronous injection type rotary spray head device for trenchless pipeline repair, and relates to the technical field of pipeline repair, the synchronous injection type rotary spray head device comprises a cylinder, a first pipe body, a second pipe body and a third pipe body are fixed in the cylinder, the first pipe body, the second pipe body and the third pipe body are concentrically arranged, the first pipe body is used for conveying a repair polymer, and the third pipe body is used for conveying a repair polymer; and the second pipe body is used for conveying gas. When pipeline repairing work is carried out, the inner surface of a pipeline can be treated firstly, floating ash on the inner surface of the pipeline and burrs at the damaged position can be cleaned, it is guaranteed that epoxy resin can be evenly attached to the inner surface of the pipeline, the repairing effect is improved, in addition, through the effect of the repairing assembly, the damaged position of the pipeline is filled, and the repairing efficiency is improved. Therefore, the inner surface of the repaired pipeline is smooth, water scale, impurities and the like are prevented from being accumulated at the potholes in the pipeline after the pipeline is repaired, and the conveying capacity of the repaired pipeline is ensured.

The utility model discloses a breathable polyester fabric, which relates to the technical field of textiles, and is characterized in that a plurality of moisture guiding pieces are arranged between an inner layer and an outer layer, and a first breathable space is formed between the moisture guiding pieces and the inner layer; a plurality of first ventilation holes which are symmetrically formed in the thickness direction of the fabric and communicate with the first ventilation spaces are formed in the inner layer and the outer layer in a penetrating mode, and second ventilation spaces are formed between the inner layer and the adjacent moisture guiding pieces and between the outer layer and the adjacent moisture guiding pieces. A plurality of air holes II which are symmetrically formed in the thickness direction of the fabric and are communicated with the air spaces II are formed in the inner layer and the outer layer in a penetrating manner. After the polyester fibers are profiled, the polyester fibers obtain larger gaps and surface areas, so that the ventilation effect of the polyester fibers is improved, the ventilation holes I, the ventilation holes II, the ventilation spaces I, the ventilation spaces II and the ventilation grooves which are communicated with one another enhance the ventilation effect between the interior and the exterior of the fabric; the overall moisture dissipation performance of the fabric is further enhanced.