57results about How to "Reasonable and practical structure design" patented technology

The invention relates to a wheeled range finder, comprising a handle and a hand grip on the handle. The lower part of the handle is fixed with a wheel seat, and a rotatable measuring wheel is arranged on the side of the wheel seat. The range finder is characterized in that: a magnetic steel element is fixed on the side of the measuring wheel; a hall induction sensor matched with the magnetic steel element is fixed inside the wheel seat; an output of the hall induction sensor is connected with a control circuit; an output of the control circuit is connected with a display screen on the hand grip. The range finder matches the magnetic steel element with the hall induction sensor, can avoid the interference and influence from outside weather and foreign matter, and is little in measurement interference and higher in precision. In addition, the range finder automatically subtracts the reversing rotation distance of the measuring wheel from the present distance data, which is more convenient to use, reasonable and practical in integral structure design and easy to assemble and produce.

The invention discloses an orthopedic medical instrument, and particularly discloses a universal prosthetic femoral stem extractor used for revision of hip arthroplasty. The universal prosthetic femoral stem extractor comprises a body and a handle slidably arranged thereon. A universal joint is arranged at one end of the body, the body is connected with a fixing bar through the universal joint, the fixing bar is connected with a regulating bar through a screw, one end of the regulating bar is connected with a thread bar, a sleeve is arranged on the thread bar, and a grip bar is arranged at one end of the sleeve. The universal prosthetic femoral stem extractor is characterized in that a ratchet wheel is arranged at one end of the fixing bar and the regulating rod is in the shape of a pawl. Due to the special design of the ratchet wheel and the pawl, the extractor can be used for extracting the prosthetic femoral stem directly. The whole operation process cause low suffering to patients and is short in time and accurate and reliable.

The invention discloses an air purification window suitable for hospital wards. The air purification window comprises a window frame, glass, a panel, an air intake device, an air purification device and an exhaust device, wherein the panel is arranged at the left side of the window frame; air outlets are formed in the upper part of the panel; a master controller, a gas concentration sensor and an air humidity sensor are arranged in the middle of the panel; exhaust openings are formed in the lower part of the panel; an air inlet pipe is arranged at the upper part on the left side of the window frame; a mini-type air intake fan is arranged at the inlet of the air inlet pipe; the air inlet pipe is communicated with an air filter; the air filter is communicated with an air humidifier; the air humidifier is communicated with the air outlets; an exhaust pipe is arranged at the lower part on the left side of the window frame; the gas concentration sensor, the air humidity sensor, the mini-type air intake fan, the air humidifier and a mini-type exhaust fan are all electrically connected with the master controller. The air purification window has the advantages that indoor air is kept fresh and balanced in pressure; purified level of indoor air is improved effectively.

The invention provides an oil storage barrel comprising an oil barrel and an oil barrel cover mounted on the oil barrel. The oil storage barrel is characterized in that two CPCs (Circular Plastic Connectors) are fixed on the oil barrel cover, wherein the lower end of one CPC is connected with a relatively longer internally connected oil pipe which is inserted in the oil body of the oil barrel and is close to the bottom of the oil barrel; and the lower end of the other CPC is connected with a relatively shorter internally connected oil pipe which is exposed on the oil surface. By adopting the CPCs in the invention, the oil barrel cover is prevented from being fully opened so as to reduce introduced oxygen, effectively prevent oil oxidation and achieve convenience in use, and liquid leakage is avoided after multiple uses, thus, the problem of oil oxidation and deterioration caused in processes of filling, transporting, sampling, storing, using, and the like by oil production enterprises is effectively solved, oxygen is prevented from being introduced into the oil barrel after the oil barrel cover is opened and oil sampling and oil detecting are convenient.

An automatic charging and centering type cutting clamp for a building pipe comprises a pedestal bracket, a machine tool base, a machine tool rack, the building pipe, a cutting device, a first clamping device, a tooth-shaped guide rail, a moving gear, a driving motor, a connecting rod and a second clamping device, wherein the machine tool rack is arranged at one end of the upper surface of the machine tool base; the cutting device is arranged at the left sidewall of the machine tool rack; a through hole through which the building pipe passes is formed in the center of the machine tool bracket; the first clamping device which is in match with the building pipe is arranged at the right sidewall of the machine tool rack; the second clamping device is of the same structure as the first clamping device. With the adoption of the automatic charging and centering type cutting clamp for the building pipe, the pipe can be automatically centered, so that the cutting accuracy can be greatly improved; in addition, the pipe can be automatically charged, so that the work intensity of workers can be greatly reduced.

The invention provides a water quenching thermal treatment adjustable device of a steel cord brass electroplating operation line. The device has the advantages of simple structure, low cost, convenience and adjustability. The technical scheme provided by the invention is that the lower end in a water bath (1) is provided with a guide rail (2), wherein the bottom of a movable working tank (3) is provided with rollers (10); the rollers (10) are positioned on the guide rail (2); and a liquid lifting device (5), an end plate (9) and an adjusting tank (6) are arranged in the movable working tank (3) and a fixed working tank (4) respectively. According to the device, the defects of lead quenching are overcome, the problem of non-adjustable water quenching parameter is further solved, the structural design is rational and practical, the time is saved, the labor intensity is relieved, and the product quality is improved; and the device is more suitable for popularization.

The invention discloses an intelligent monitoring water purifying machine applicable to a hospital disinfecting and supply center. A running water inlet is connected with a water hammer arrestor; the water hammer arrestor is connected with a composite-filter core filtering device; the composite-filter core filtering device is connected with a booster pump; the booster pump is connected with a water inlet of a RO membrane filtration device; a clean water outlet of the RO membrane filtration device is connected with a clean water pipeline; a concentrated water outlet of the RO membrane filtration device is connected with a concentrated water pipeline; a water quality sensor and a tee joint are sequentially arranged on the clean water pipeline; one end of the tee joint is connected with a water outlet; the other end of the tee joint is connected with a pressure water storage tank; a cleaning pipe is connected onto a pipeline between the tee joint and the pressure water storage tank, and connected with a cleaning air pump. Through the adoption of the intelligent monitoring water purifying machine, the water purifying efficiency and the water purifying quality are improved, so that the intelligent monitoring water purifying machine is worthy of large-scale popularization and application.

The invention provides a stereo totally-closed greening vacuum alkali removing device and an application method thereof. The device is mainly formed by a feedwater control valve (1), an upper layer alkali removing pipe (2), an upper layer alkali removing pipe feedwater control valve (3), a lower layer alkali removing pipe (4), a lower layer alkali removing pipe feedwater control valve (5), a ponding discharge valve (6), an upper layer alkali removing pipe connecting pipe (7), an upper layer and lower layer alkali removing pipe connecting pipe (8), an upper layer and lower layer alkali removing pipe control valve (9), a lower layer alkali removing pipe connecting pipe (10), a vacuum pump (11), a single pump control valve (12), a self-drainage control valve (13), a self-flowing port (14), a forced drainage overflow port (15), an external soaking prevention film (16), and fresh water (17). Beneficial effects of the device are that the structural design is rational and practical, complicated procedures are reduced, and alkali removing is clean and thorough, and wind energy and solar energy are directly used as power to reduce operational cost, so as to achieve effect of green power alkali removing.

The present invention provides a wind-power vacuum alkali reduction apparatus for reclamation of saline and alkaline land and a use method of the apparatus. The technical scheme is characterized in that an alkali removal pipe path is vertically composed of upper layer alkali removal pipes (1.1) and lower layer alkali removal pipes (1.2), each having a control valve (2.1); the upper layer alkali removal pipes (1.1) are arranged between the adjacent lower layer alkali removal pipes (1.2) in a staggered mode in the vertical direction; one end of each of the upper layer alkali removal pipes (1.1) and the lower layer alkali removal pipes (1.2) is connected to a vacuum tube (2); one end part of the vacuum tube (2) is connected to a vacuum pump (2.2); the other end of one of the upper layer alkali removal pipes (1.1) and the lower layer alkali removal pipes (1.2) is connected with a quick connector; and the quick connector is connected to a high-pressure pump through the pipe path, wherein the connection part is provided with an observation well (3) communicating with the ground. The apparatus and method disclosed by the present invention have the beneficial effects that: a structural design is reasonable and practical; the alkali removal efficiency is twice of that of a traditional method for alkali removal; and by using wind energy and solar energy directly as power, the operating cost is lowered, thereby realizing the effect of using green power to modify alkali.

The invention discloses a wind-solar hybrid LED bus stop board which comprises a base, a stop board body, a support pillar, solar cell panels, a wind power generation device, an LED display screen, a wireless communication device, a control device, an electric transducer and a storage battery. The support pillar is arranged at the top of the stop board body, a support frame is arranged on the lower portion of the support pillar, the solar cell panels are arranged on the support frame, the wind power generation device is arranged at the top of the support pillar, the solar cell panels and the wind power generation device are connected with the electric transducer which is connected with the storage battery, the wireless communication device is arranged on the left side of the top of the stop board body, and the LED display screen, LED illuminating lamp sets, loudspeakers and the wireless communication device are electrically connected with the control device. By means of the wind-solar hybrid LED bus stop board, the consumption of the electrical energy is reduced, and the timely situation of a vehicle can be conveniently understood by a passenger in time.

The invention discloses a river water quality detection position self-adjusting aeration device based on water environment treatment, and relates to the technical field of water environment treatment.The aeration device comprises a floating plate; an aeration motor is installed on the upper surface of the floating plate and connected with aeration fan blades located below the floating plate through a linkage shaft, a water quality detection head used for detecting the water quality of a water body is installed in the middle of each aeration fan blade, and a plurality of anchor system assemblies used for fixing the aeration device are installed on the edge of the floating plate. The water quality detection head is used for detecting the water quality of the aeration position, the winding roller and the winding motor are used for winding the anchoring assembly, and the shielding balancing weight is used for shielding part of the driving flow channel after winding so that under the action of the driving fan blades, water flow flows out through the driving flow channel which is not shielded; and the aeration device is driven to move by the counter-acting force of water flow outflow, the water quality can be detected, and the position of the aeration device can be self-adjusted.

The invention discloses an orthopaedic medical instrument, and in particular discloses a split type orthopaedic soft drill and a manufacturing method thereof. The split type orthopaedic soft drill comprises a drill handle, a soft shaft and a cutting edge joint which are connected to form a whole, wherein a groove is also formed in the soft shaft and is helically sunken. The manufacturing method comprises the following steps of: manufacturing the rigid hollow soft shaft by the conventional method, processing the soft drill by taking an outer circle of the soft shaft as a reference through a numerical control fine-engraving machine, engraving the groove in each group of chain section of a cylindrical surface of the soft shaft along a trace of a concave shoulder to form an upper group of chain section and a lower group of chain section which are helically connected, and performing the steps by parity of reasoning. Due to the special helical sunken design, the split type orthopaedic soft drill is proper in elasticity; the radian can be randomly adjusted; the split type orthopaedic soft drill is difficultly broken; and the whole operation process is simple and quick.

The invention belongs to the field of radar electronic communication and specifically relates to a receiving antenna. The antenna comprises a radio frequency coaxial semi-rigid cable, a reflection plate, a first outer conductor insulating support, a first outer conductor, a second outer conductor insulating support and a second outer conductor. The antenna further comprises a first inner conductor, a second inner conductor, a third inner conductor and a fourth inner conductor which are coaxially arranged with the radio frequency coaxial semi-rigid cable. The radio frequency coaxial semi-rigid cable, the inner conductors, the outer conductors and the insulating supports form an antenna module together. The antenna module is installed on an installation base. An antenna cover covers the antenna module, and the cover opening of the antenna cover and the installation base form a flange fixed matching. The radial fit clearance between the antenna cover and the antenna module is filled by foam supports. The receiving antenna solves the problem that the inner conductors of a long and thin structure are difficult to machine, and the machining and assembling precision of the inner conductors and the outer conductors are effectively ensured.

The invention discloses an orthopaedic medical device and more particularly discloses a medullary cavity filing and extracting device used for a minimally invasive surgery of an artificial hip joint in a femur side. The medullary cavity filing and extracting device comprises a main body and a handle slidingly arranged on the main body, wherein one end of the handle is provided with a connector; the handle is connected with a latch hook through the connector; one end of the main body is provided with a base; and the main body is also provided with a fixing block. The medullary cavity filing and extracting device provided by the invention combines both the filing and the extracting of the medullary cavity as a whole, the filing is realized by pressing the handle and knocking the base and the extracting is realized by extracting the main body. The medullary cavity filing and extracting device is convenient to use and strong in filing and extracting force.

The invention provides a waste gum collecting bag and belongs to the technical field of articles and devices for daily use. At present, the consumption of gum is larger and larger, and people often directly spit chewed gum to the ground; and because the gum is quite difficult to remove, quite severe pollution to the environment is caused, and the appearance of a city is also influenced. According to the technical scheme, a bag cover is fixedly connected with the collecting bag, and a nylon yarn hook and loop fastener is arranged on the bag cover and the collecting bag correspondingly. The waste gum collecting bag has the advantages that the waste gum collecting bag is reasonable in structural design, practical, ingenious, novel in conception and convenient to carry, after chewing the gum, people spit the gum into the waste gum collecting bag, the gum does not pollute the environment any more, the environmental awareness of people is improved, and the waste gum collecting bag has the functions of promoting civilization, harmoniousness and progress of the society.

The invention relates to an air cushion bed for patients of a department of cardiology. The air cushion bed comprises a bed body (12), universal wheels (7) and an air cushion (1). The air cushion bed is characterized in that the interior of the air cushion (1) is separated into interlayer air chambers (6) which are uniformly distributed in a vertically and horizontally intersected mode and are in a grid structure through first to fourth longitudinal interlayers (2), (3), (4) and (5) and first to second transverse interlayers (15) and (16), an one-way air valve is arranged between each two interlayer air chambers (6), a transversely arranged one-way air valve (13) and a longitudinally arranged one-way air valve (14) are arranged on the first to second transverse interlayers (15) and (16) respectively, and longitudinally arranged one-way air valves (8) and transversely arranged one-way air valves (9) are arranged on the first to fourth longitudinal interlayers (2), (3), (4) and (5) respectively. The air cushion bed for the patients of the department of cardiology has the advantages that the structure is simple, the usage is convenient, the inflating volume of the air cushion can be controlled and adjusted with the change of the pressure of the patients, and the like.

The invention provides a horizontal testing system of an oil-submerged pump. According to the technical scheme of the horizontal testing system, one side of a three-phase asynchronous motor (1) is connected with a torque rotating speed sensor (2) and connected with a coupling (3) through a shaft (15); a high-pressure pump discharge opening (4) is connected with the oil-submerged pump (8) in parallel; a height adjusting handle (12) is arranged on the high-pressure pump discharge opening (4); the bottom of the height adjusting handle (12) is connected with a test bed base (11); the oil-submerged pump (8) is provided with an oil-submerged pump suction inlet (14); an upper pipeline of the high-pressure pump discharge opening (4) is connected with electromagnetic flowmeters (5) through a pressure sensor (16); the electromagnetic flowmeters (5) are connected with switching valves (6); the switching valves (6) are connected with a storage tank (9) through a high-pressure pipeline (7); the storage tank (9) is connected with the oil-submerged pump suction inlet (14); the other side of the three-phase asynchronous motor (1) is connected with a power distribution cabinet (10); and the power distribution cabinet (10) is connected with a control terminal (13). The horizontal testing system provides accurate data for testing of the pump efficiency of a centrifugal pump.

The invention relates to the technical field of orthopedic equipment and provides a vertebral universal reduction device for an orthopedic spinal surgery. A lifting mechanism is arranged on a supporting frame, a swing mechanism is connected with the top of the lifting mechanism and further connected with a connection rod through a bearing connection block, two ends of the connection rod are connected with armrest mechanisms respectively, a chest protection board is connected with the bearing connection block on the connection rod through a positioning pin, and positioning plates are arranged on the supporting frame. The vertebral universal reduction device is a special orthopedic surgical tool for temporary fixation and surgical reduction when an orthopedic internal fixation device is installed between two bone fracture sections after bone fracture or bone excision. The vertebral universal reduction device used in an orthopedic surgery process has advantages of simplicity in operation, high comfort, reasonability in structural design, practicality, safety, reliability, economy, practicality, functional versatility, convenience in use and suitableness for extensive popularization.

An energy-saving refrigerating device comprises an evaporator and connection pipelines. The energy-saving refrigerating device is characterized in that an outlet in the upper portion of the evaporator is connected with an inlet of a second cooling restorer firstly; then an outlet of the second cooling restorer is connected with an inlet of a vacuum pump; an outlet of the vacuum pump is connected with an inlet of a first cooling restorer; and an outlet of the first cooling restorer is connected with an injection nozzle of the evaporator. The energy-saving refrigerating device is more reasonable in structure, a vaporized refrigerant pumped out of the evaporator at the negative pressure can be sufficiently cooled and condensed, and accordingly a high energy-saving effect is achieved.

The invention relates to a device for determining growth and development indexes of whitefly parasitic wasps by using living plants and a use method. The device comprises a parasitizing device and a culture device. The parasitizing device disclosed by the invention comprises an upper parasitizing dish and a lower parasitizing dish, wherein opening faces of the upper and lower parasitizing dishes are formed oppositely, spongy cushions are separately arranged at joints, and thus, a space for parasitizing of the parasitic wasps is enclosed; 3 ventilation openings are separately formed in two sidefaces of the upper and lower parasitizing dishes, and an insect receiving port is formed in one end, close to a snapping opening, of the top of the upper parasitizing dish and is connected with an insect receiving pipe; and the culture device is a disc with a cover, a circular opening is formed in the center of the cover, and a piece of gauze is laid in the circular opening. According to the device and the use method, growth and development conditions of the whitefly parasitic wasps are observed by using the living plants, the device is relatively close to a natural environment, and determination data are more accurate.

The asynchronous generator consists of the chassis, the formed stator winding, the stator iron core and the rotator. Special points are that the chassis possesses a water cooling twin layers; the wind tube is buried within this twin layers; two sets of twin formed stator windings with different pole numbers are adopted; A centrifugal fan is set on the rotator. The end of the formed winding is colligated with a soft end hoop. The two windings are separated by a discontinuous colligation with the double soft end hoops. The axis directional vent holes are made on the rotator core. The invention ensures a stable, safe, reliable and efficient running. Its power can reach 1300 / 250 KW.

The invention relates to a pair of dual-wheel balance shoes. Each shoe comprises a shoe body part, a sole part and a roller skating part; the balance shoe is characterized in that the sole body part comprises a vamp (5), a vamp base plate (15) and a shoelace (3), a vamp solar charging panel (1), a vamp operating switch (4), a trapezoidal mounting boss (18), a vamp operating switch interface (19) and a vamp solar charging panel interface (20); the sole part comprises a sole body (12), a sole supporting plate (24), a pre-posed sensor (13) and a post-posed sensor (8), a storage battery (25), a trapezoidal mounting groove (25), a sole operating interface (30) and a sole solar charging panel interface (31), and meanwhile, a roller skating mechanism and a locking mechanism are arranged. The balance shoes, with the adoption of the technology, have the characteristics of being simple in structure, beautiful in appearance, convenient to use and the like.

The invention provides a pace training device, relating to the technical field of medical facilities. For the pace training device, a base assembly comprises bottom plates and a support rod, wherein two open ends of the support rod are respectively fixedly arranged on the two bottom plates which are arranged in parallel, a lifting mechanism is connected with the support rod, one end of a swing mechanism is connected with a connecting block of the lifting mechanism, the other end of the swing mechanism is connected with an armrest mechanism, a chair mechanism is connected with the armrest mechanism through a connecting block, a waist tying belt is arranged on a fixing plate of the armrest mechanism, leg tying belts are arranged on the inner side edges of the bottom plates, moving devices are arranged under the bottom plates, so that a patient can perform simple walking movement by utilizing the device within several days after the operation, rehabilitation training is carried out, and then the recovery of the body health is accelerated. Meanwhile, the device can be used for assisting the walking of some patients with inconvenience in moving, supporting by hands of other people is not needed, and in addition, the pace training device is reasonable in structural design, is practical, is safe and reliable, is economical and practical, is rich in function, is convenient to use, is good in effect, and is suitable for wide popularization.

The present invention relates to a filter stick bonding strength detector and use method. The filter stick bonding strength detector comprises a test unit including a fixing bracket and a load testing device, wherein, a through hole having a ball bearing therein is vertically arranged on the fixing bracket, the load testing device passes through the elevating rod of the ball bearing, wherein one end of the elevating rod is connected with a test head and the other end thereof is connected with a platform. By applying a load-fixed static pressure on a filter stick for a given period, the detector of the invention detects the structure situation of the pressed filter stick. The detection unit functions automatically, after the filter stick is held and moved to a filter stick test end along atrack, to apply force to the filter stick by the test head (thimble), and the firmness of the filter stick is determined after the detection.

The invention provides a testing system for a submersible motor in a high-temperature and high-pressure environment. The technical scheme comprises the steps that a high-pressure pipeline pump (2) is disposed on a first high-pressure pipeline (3) under a high-pressure heating tank (1); a first high-pressure valve (5) is connected to the first high-pressure pipeline (3); a thermometer (4) is disposed on a left face of a connection part; a test well casing (6) is connected to the first high-pressure valve (5); a high-pressure dedicated testing well mouth assembly (7) is disposed on the test well casing (6); the high-pressure dedicated testing well mouth assembly (7) is connected to a booster pump (9) by a pressure gauge (8); a second high-pressure valve (12) is disposed on a second high-pressure pipeline (11) over the high-pressure heating tank (1); the second high-pressure valve (12) is connected to a power source and a signal transmission cable (14) by the submersible motor (13); and the power source and the signal transmission cable (14) are connected to a dedicated testing terminal (10). The system provided by the invention records operation data of the submersible motor in a simulation environment and can accurately know stability of the submersible motor in the high-temperature and high-pressure working environment.

The invention relates to the field of a cutting tool, in particular to a small-modulus spiral bevel gear cutter. The small-modulus spiral bevel gear cutter comprises a cutter body and a connecting rod, wherein the cutter body is of a circular tube shape, the cutter body is made of high-speed steel, one end of the cutter body is provided with blades, one side of the cutter body close to the blades is provided with variable-diameter steps, one end of the connecting rod is provided with threads, the other end of the connecting rod is provided with a connecting seat, the connecting seat is of a circular shape, the connecting seat adapt to the variable-diameter steps, and the other end of the cutter body is connected with a cutter shaft through the connecting rod. The small-modulus spiral bevel gear cutter disclosed by the invention has the beneficial effects that the structural design is reasonable and practical, the design is ingenious and novel, the use is simple and convenient, the small-modulus spiral bevel gear cutter is made of steels in different materials, and the cost is saved.

The invention discloses ribbon fiber equipment made of a scattered core fiber and a method for making a ribbon fiber. The invention relates to the technical field of communication engineering, in particular to ribbon fiber equipment made of a scattered core fiber and a method for making a ribbon fiber. The ribbon fiber equipment made of the scattered core fiber comprises a guide rail, wherein fixing clamps are arranged at the two ends of the guide rail; the middle part of the guide rail is provided with a scraping device; positioning clamps are arranged on both sides of the scraping device; the back parts of the scraping device and the positioning clamps are provided with sliding seats; the lower parts of the sliding seats are provided with grooves; the grooves are matched with the guide rail; the scraping device and the positioning clamps slide on the guide rail; the back part of the sliding seat of the scraping device is connected with a scraping plate through a revolving shaft; and a magnet is arranged at a position, which corresponds to the scraping plate, on the surface of the scraping device. The ribbon fiber equipment has the advantages of reasonable and practical structural design, skillful and novel concept, and easiness and convenience in using.

The invention discloses a landscaping breeding box. The box body is composed of water-absorbing cotton, a water tank, an infiltration device, a fence and nutrient soil. The water-absorbing cotton is arranged at the bottom of the box body. The osmotic device is arranged on the upper part of the water tank, the nutrient soil is arranged on the upper part of the penetrating device, and the fence is arranged on the upper part of the nutrient soil. The landscaping breeding tank has a reasonable and practical structural design. The infiltration device can selectively flow the excess water in the nutrient soil into the water tank. environment to ensure healthy plant growth.

The invention discloses a magnesium-aluminum alloy cutting surface grinding machine. The support one is arranged on one side of the upper surface of the base, a sliding device is sleeved on the cross bar of the support one, and a handle is arranged on the upper surface of the sliding device. , the second bracket is fixedly connected with the sliding device, the other end of the second bracket is slidingly connected with the third bracket through the rotating device, the lower end of the third bracket is installed with a driving device, the driving device is connected with the grinding piece, the second A fixed guide groove is arranged on the length direction of the upper surface of the base, and the second fixed guide groove is arranged on the width direction of the upper surface of the base. The clamping assembly is disassembled, and the clamping assembly can slide in the fixing guide groove. The metal cutting surface grinding machine has a reasonable and practical structure design, and the grinding machine can be applied to all castings, which greatly improves the production efficiency.

The invention belongs to the field of radar electronic communication and specifically relates to a receiving antenna. The antenna comprises a radio frequency coaxial semi-rigid cable, a reflection plate, a first outer conductor insulating support, a first outer conductor, a second outer conductor insulating support and a second outer conductor. The antenna further comprises a first inner conductor, a second inner conductor, a third inner conductor and a fourth inner conductor which are coaxially arranged with the radio frequency coaxial semi-rigid cable. The radio frequency coaxial semi-rigid cable, the inner conductors, the outer conductors and the insulating supports form an antenna module together. The antenna module is installed on an installation base. An antenna cover covers the antenna module, and the cover opening of the antenna cover and the installation base form a flange fixed matching. The radial fit clearance between the antenna cover and the antenna module is filled by foam supports. The receiving antenna solves the problem that the inner conductors of a long and thin structure are difficult to machine, and the machining and assembling precision of the inner conductors and the outer conductors are effectively ensured.