125 results about "Mercury column" patented technology

The invention is a craft which founds metal base compound local enhanced engine piston blank. It includes: (1) produces enhancing phase pre-component; (2) confects base alloy materials, the proportion is: silicon 11~13%, copper 0.5~2.0%, magnesium 0.4~1.4%, manganese 0.2~0.9%, vanadium 0.05~0.27%, the other is aluminum; (3) melts the base alloy; (4) refines it by eliminating the air: flows argon with pressure of 100~110mm mercury column for about 6~8 minutes, the temperature is 780~810íÒC; (5) Deterioration processing: adds in 0.013~0.016% Be, 0.04~0.06% Ti, 0.002~0.004% Te ternary compound deterioration agent; (6) prepares the mould; (7) founds the piston blank.

A micropump utilizes electrically controlled interfacial tension between a mercury column and an electrolyte solution in a capillary tube, and also uses the gas pressure in a confined chamber connected to the capillary tube as the restoring pressure. Accordingly, the pump operates without generating external jitter or noise, in vertical, horizontal, or in any orientation against the gravitational force. In this manner, the flow rate of the pumped fluid can be widely and conveniently controlled. Further, the micropump is small in size and simple in construction, and needs extremely small power consumption.

The invention discloses an extracting method of inulin from chicory root, which comprises the following steps: cleaning; cutting; drying at 50-100 deg.c for 0.5-10h; grinding; extracting through 10-95% alcohol for 1-5 times; setting each extracting time for 0.5-5h; combining extract; filtering; obtaining filtrate B; adding 0.1-50% decolourant corresponding to filtrate B; heating to reflux 0.1-10h; filtering; obtaining the filtrate C; decompressing the filtrate C under 1-760 mm mercury column; condensing; drying in the vacuum; controlling water content at 2-10%.

The invention discloses a making method of sequent porous aza-titanium oxide micro-powder, which comprises the following steps: 1. dispersing single dispersion polymer microball into formamide; hydrolyzing titanium alkoxide to gather single dispersed polymer to form titania/single dispersed microball composition; 2. removing single dispersed polymer microball mould; making the sequent porous titania micro-powder; 3. placing the micro-powder into microwave plasma generator; extracting into vacuum with vacuum degree less than 50mm mercury column; aerating nitrogen into microwave plasma generator; adjusting nitrogen flow speed to 10-50cm3/min and microwave power at 200-1000W under 200-500 deg.c; irradiating for 1-60 min; obtaining the product.

A method for synthesizing hydroxyl ethylidenediphosphonic acid belongs to synthesis of organo-phosphonic acid and is used in water stabilization. The phsophorus trichloride and acetic acid react at a temperature between 80 DEG C and 150 DEG C with an absolute pressure less than 760 millimeters mercury column, and the byproducts of hydrochloride and a few acetyl chlorides free of condensation are respectively retrieved and reused by combined recovery system of acetic acid and hydrochloric acid. The product of this method is obtained by hydrolyzing the acetylated hydroxyl ethylidenediphosphonic acid at a temperature between 80 DEG C and 150 DEG C with an absolute pressure no more than 760 millimeters mercury column; the collected hydrolysate of acetic acid after the distillation and the condensation is selected as raw material together with the acetic acid solution from the reclamation tower of acetic acid. The autoclave of 1000 litres daily produces products of 2500 kilograms with 60 % of solid content and less than 0.15 % of phosphorous acid; the yield rate of the products is more than 98 % calculated by phsophorus trichloride and is more than 96 % calculated by acetic acid.

The invention discloses a dairy drink of fresh sea cucumber (sea cucumber polypeptide, sea cucumber amylase) processed by a low-temperature extra high pressure freezing out micro mist technology and a preparing method, including 1, low temperature extra high pressure sterilizing: after being washed, the sea cucumber is put into a closed container and kept for 15 minutes within 20 DEG C under the pressure of 500-1000MPa and the autolytic enzyme and bacilli of the sea cucumber are blanched; 2, freezing out: after being sterilized, the sea cucumber is quickly frozen to be ice at the temperature below 5 DEG C below zero within 0.5 hour and leading the ice to sublime (15-20 DEG C) as vapor to be drained out under the vacuum condition (40-50mm mercury column) to lead the water content of the sea cucumber to be lower than 3 percent; 3, micro mist processing: after being frozen out, the sea cucumber is crushed roughly and then a fluid-bed fluid jet mill is adopted to lead the diameter of the micro mist of the sea cucumber to be between 3 to 5 Mum; 4, a physical sterilization method contains no chemical additives, thus keeping the biological activities of various matters like the sea cucumber polypeptide and the sea cucumber amylase in the sea cucumber and the invention combined with the balanced nutrition components of the dairy drink, thus enhancing the health effects of the sea cucumber of delaying senility and improving immunity.

The invention discloses a milk of fresh sea cucumber (sea cucumber polypeptide, sea cucumber amylase) processed by a low-temperature extra high pressure freezing out micro mist technology and a preparing method, including 1, low temperature extra high pressure sterilizing: after being washed, the sea cucumber is put into a closed container and kept 15 minutes within the temperature of 20 DEG C under the pressure of 500-1000MPa and the autolytic enzyme and bacilli of the sea cucumber are blanched; 2, freezing out technology: after being sterilized by superhigh pressure, the sea cucumber is quickly frozen to be ice under at the temperature below 5 DEG C below zero within 0.5 hour and leading the ice to sublime(15-20 DEG C) as vapor to be drained out under the vacuum condition (40-50mm mercury column) to lead the water content of the sea cucumber to be lower than 3 percent; 3, micro mist processing: after being frozen out, the sea cucumber is crushed roughly and then a fluid-bed fluid jet mill is adopted to lead the diameter of the micro mist of the sea cucumber to be between 3 to 5 Mum; 4, the invention adopts a physical processing and contains no chemical additives, thus keeping the biological activities of various matters like the sea cucumber polypeptide and the sea cucumber amylase in the sea cucumber; and simultaneously the invention is combined with the balanced nutrition components of the fresh milk, thus having the advantages of full nutrition, delaying senility and improving immunity.

The invention belongs to the field of wind transducers, and particularly relates to an anti-freezing anemograph. The anti-freezing anemograph comprises a wind cup. The wind cup comprises an outer layer, a middle layer and an inner layer. The outer layer is a flexible solar cell layer. The middle layer comprises a storage cell connected to the flexible solar cell. The inner layer is a wind cup body. One pole of the storage cell is connected with one end of the wind cup body in a conductive mode, and the other pole of the storage cell is connected to the other end of the wind cup body through a mercury column. The storage cell, the mercury column and the wind cup body jointly form a closed vacuum space. A mercury bubble is arranged on the side with the storage cell of the mercury column. The anti-freezing anemograph can prevent influences caused by frost weather on wind speed and direction, can be applied to ice and snow weathers of various places, and is simple in structure, capable of automatically heating the wind cup according to the environmental temperature, good in anti-freezing effect and convenient to maintain.

The invention relates to a sulfur- and phosphorus-free water-soluble organic molybdenum additive. A technical scheme used in the invention is as follows: oleic acid and diethanolamine are placed in a container and subjected to a reaction for 3 to 5 h at a temperature of 90 to 100 DEG C, then hydroxyethyl ethylenediamine is added, and an obtained mixture is allowed to further react for 2 to 4 h ata temperature of 100 DEG C in vacuum so as to prepare mixed oleylamine, wherein, the weight ratio of oleic acid to diethanolamine is 100: 30-40, and the weight ratio of oleic acid to hydroxyethyl ethylenediamine is 100: 20-30; prepared mixed oleylamine and ammonium molybdate are mixed uniformly with stirring, then imidazole is added, an obtained mixture is subjected to pressure reduction at a temperature of about 70 to 80 DEG C until a mercury column is 100 to 150 mm high, allowed to react for 4 to 5 h, then heated to a temperature of 80 to 100 DEG C, subjected to pressure reduction until a mercury column is 50 to 80 mm high and allowed to further react for 2 to 3 h, then water generated in the reactions is pumped out, and a resultant undergoes cooling and filtering so as to obtain brown-red sulfur- and phosphorus-free water-soluble organic molybdenum with a content of 7.5%, wherein, the content of N is 4.5%, the weight ratio of mixed oleylamine to ammonium molybdate is 100: 30-35, and the weight ratio of mixed oleylamine to imidazole is 100: 15-20. According to the invention, a product is prepared through two-step reduced pressure distillation, and the product has excellent extreme pressure properties, good metal slow release and extraordinary water soluble lubricity.

The invention proposes a scaffold detection ruler, and the ruler comprises two square tubes. Each square tube is provided with a chute and a clamping tool, and the clamping tools are in sliding fit with the chutes through adjustable bolts. The two square tubes are rotatingly connected with through a reel. An end part of one square tube is provided with a laser infrared lamp. The surface of each square tube is marked with scale. The reel is marked with an angle. One square tube is provided with a lateral mercury column and a longitudinal mercury column. The beneficial effects of the invention are that the ruble can detect the step pitch and span of a scaffold, a cross bridging angle, a horizontal angle of a big cross bar and the verticality of a vertical rod; the ruler achieves a plurality of purposes, and is high in practicality; the ruler can be folded, is portable, is simple in structure, and is convenient to use.

The invention discloses a testing apparatus and method for the dry bulk density change of a sediment deposit under a large water pressure. The testing apparatus comprises a shell, testing cylinders, a pressurizing system, a communicating pipe, a glass observation window, a camera and a computer, wherein the shell is a main body of the testing apparatus, and is cast of high-grade carbon steel; each testing cylinder is a stainless steel cylinder, and is poured in the shell, the pressurizing system is composed of a plurality of U-shaped stainless steel pipes; the communicating pipe is a stainless steel pipe, and is connected with U-shaped pressurizing pipes, the testing cylinders, a water adding pipe and a material adding pipe. The method is carried out by adopting the device, mercury is injected in the U-shaped pressurizing pipes, the water pressure of deep water is simulated by overlapping large pressure difference, and the testing cylinders and the U-shaped pressurizing pipes are respectively observed; the computer adopts images of the U-shaped pressurizing pipes and the testing cylinders, and the height difference of mercury columns in the U-shaped pressurizing pipes and the change process of a sediment interface in each testing cylinder are measured. The testing apparatus is capable of obtaining the change process of the dry bulk density of the sediment deposit under a 300m water pressure and has an important production application value to the operation management of a super-huge type reservoir.

The invention belongs to the field of wind transducers, and more specifically relates to anemorumbometer in windy, snowy and ice weather. The anemorumbometer comprises a wind cup, a rainproof cover installed on the wind cup and a bracing frame used for supporting the wind cup. The wind cup comprises an external layer, a middle layer and an internal layer. The external layer is a flexible solar cell layer. The middle layer comprises a storage battery connected to the flexible solar cell. The internal layer is a wind cup body. An electrode of the storage battery is in contact connection with the wind cup body in a conductive mode, and another electrode of the storage battery is connected to the wind cup body through a mercury column. The storage battery is connected to an electrode of the mercury column. The mercury column and the wind cup body together form an enclosed vacuum space. One side, positioned near the storage battery, of the mercury column is with a mercury bulb. The anemorumbometer can prevent influence on the wind speed and wind direction by frost weather, can be applied to ice and snow weather at any place, and is simple in structure, good anti-freezing effect and easy to maintain.

The invention relates to a piston type hydrargyrum optical fiber Bragg grating tilt angle sensor and a using method of the piston type hydrargyrum optical fiber Bragg grating tilt angle sensor, and belongs to the technical field of photoelectron measurement. The piston type hydrargyrum optical fiber Bragg grating tilt angle sensor comprises a mercury column metal shell, mercury, mercury column supporting frames, an outer shell, an optical fiber lead-out hole, a leading-out optical fiber, a pressure transmission piston, a dowel bar, an optical fiber Bragg grating, an equal-strength cantilever beam, a cantilever beam supporting pillar and a base. The tilt angle change of a target measured by the sensor is calculated according to the relational expression of the central wavelength difference value delta lambada B of the optical fiber Bragg grating arranged on the upper wall and the lower wall of the equal-strength cantilever beam in a bonded mode and the tilt angle theta of the sensor. The piston type hydrargyrum optical fiber Bragg grating tilt angle sensor and the using method can improve tilt measurement sensitivity of the sensor and enlarge the measurement range of the sensor, the sensor is high in electromagnetic interference resistance and corrosion resistance, and is suitable for long-term monitoring of a side slope; and the sensor is simple in structure and convenient to operate.

The invention discloses a preparation method of orthographic optimizing betahistine hydrochloride, and relates to the field of drug preparation. The preparation method includes the steps: adding raw materials into a reaction bottle according to the feeding ratio (molar ratio) of 2-methylpyridine to paraformaldehyde of 1:0.57, leading in nitrogen, stirring mixture for 20 hours at the temperature of125 DEG C and at 4 barometric pressure, performing reduced pressure distillation, and collecting distillation cut at the temperature of 130-145 DEG C and under the pressure of 16mm mercury columns toobtain light-yellow oily 2-hydroxyethyl pyridine; adding the 2-hydroxyethyl pyridine into a three-opening bottle, adding sodium hydroxide according to the feeding ratio of 2-(2-Hydroxyethyl)pyridineto sodium hydroxide of 1:0.05, heating the mixture to reach 95-100 DEG C, stirring the mixture for 2 hours, removing a water layer, performing reduced pressure distillation on an oil layer, and collecting the distillation cut at the temperature of 65-70 DEG C and under the pressure of 17mm mercury columns to obtain 2-vinylpyridine. The preparation method is simple in technological process, safe tooperate and mild in reaction, production efficiency and product quality can be greatly improved, and production cost is reduced.

The invention discloses a body-temperature digital management system of a mercurial thermometer. The body-temperature digital management system of the mercurial thermometer is characterized by at least comprising a mercurial thermometer temperature value detecting unit, a computing unit, wherein the mercurial thermometer temperature value detecting unit is used for collecting the temperature value of the mercurial thermometer, storing the temperature value of the mercurial thermometer according to rooms and bed numbers and transmitting the body-temperature values read at different times and stored in different rooms and bed numbers to the computing unit through Bluetooth; and the computing unit is used for reading the body-temperature values (read at the different times) of the different rooms and the different bed numbers and stored by the mercurial thermometer temperature value detecting unit through the Bluetooth, and storing read values into medical record files of patients corresponding to the different rooms and the bed numbers. The body-temperature digital management system of the mercurial thermometer, provided by the invention, has the advantages that after the mercurial thermometer is adopted for measuring the body-temperature, a mercury column is kept at the body-temperature point of the temperature scale value; after the mercurial thermometer is inserted into a temperature measuring cavity, a body-temperature point image of the mercury column at the temperature scale value is read by an image sensor and an image processing unit, the image is processed, and the temperature value is displayed on a display, thus being convenient for medical workers. As the digital temperature value is easy to record and store, the digital management is achieved.

The invention disclose an automatic mercury thermometer calibration method based on machine vision. The method comprises the following steps for a selected calibration temperature: 1) a thermometer to be calibrated is put into a thermostatic bath until the mercury column of the thermometer has no change, and the temperature of the thermostatic bath is set to the selected calibration temperature; 2) a CMOS line-scan digital camera is used for obtaining a thermometer image which comprises the scale marks and numbers on the thermometer and the height of the mercury column; 3) the obtained image is processed and the reading of the thermometer is identified, the error range is set from -0.05 to +0.05, and the products of which the errors exceed the range are unsatisfied. The automatic mercury thermometer calibration method based on the machine vision is capable of completing automatic calibration quickly and accurately, and is capable of taking the place of labor and saving a large amount of labor; as a result, the production cost is reduced, and meanwhile, the production efficiency and the production quality are improved, and the product competitiveness is improved.

The invention relates to the technical field of white carbon black processes and particularly relates to a method for preparing white carbon black. The method comprises the following steps: S1, addingsolid sodium silicate into dissolving equipment, adding water and sealing the dissolving equipment; introducing steam, stopping introduction when a steam pressure in the dissolving equipment reaches120-150cm mercury column, and forming a dilute sodium silicate solution having specific gravity of 1.36-1.38g/cm<3> after the total sodium silicate is dissolved, and adding the dilute sodium silicatesolution into the reactor. Therefore, according to the method for preparing white carbon black provided by the invention, the solid sodium silicate is added into the dissolving equipment, the water isadded, the dissolving equipment is sealed, the steam is introduced to reach the steam pressure in the dissolving equipment, the introduced steam is capable of accelerating dissolution of the solid sodium silicate, and when the introduction pressure value is 120-150cm, heating of the solid sodium silicate can be accelerated, the molecular activity is improved, and the dissolving cycle is shortened.

The invention discloses a thermometer detection device. The thermometer detection device comprises a base, wherein a support column and a heating tank are respectively fixedly connected to the upper surface of the base, a transverse rod is fixedly connected to the top of the support column, a motor is fixedly connected to the middle of the transverse rod, a threaded rod is fixedly connected to anoutput shaft of the motor through a coupling, a tank cover is connected to the surface of the threaded rod through threads, and a heating detection device is arranged on the lower surface of the tankcover. According to the thermometer detection device, the heating of the thermometer is detected, water in the heating tank is preheated to -DEG C, a detection end of a to-be-detected thermometer is completely submerged into water and is taken out to be examined and observed after three minutes, a user can determine that the thermometer is unqualified if the temperature of the thermometer is different from the original temperature by DEG C or above, a mercury column automatically descends, a glass tube cracks and the like, and finally, the qualified thermometer is hung on a suspender buckle, is thrown again until the temperature is below DEG C, is taken out, is wiped to be dried and is put into a clean container for later use, so that the thermometer detection device has the characteristicof capability of batch detection.

A medical non-mercury sphygmomanometer comprises a cuff, an air filling-discharging device, a pressure sensor, a pulse hearing device, an input unit, a display unit and a SCM control unit; wherein, the display unit contains an analog mercury column display screen and a blood pressure display screen; the SCM control unit processes and then converts the collected blood pressure amplitude data to display on the analog mercury column display screen and the blood pressure display screen; the SCM control unit also comprises a judgment module and a data amplification module; wherein, the judgment module generates the beating point and the recovery point of each pulse beating period; the data amplification module is used for amplifying the collected blood pressure amplitude data of each pulse beating period to increase the sensing display amplitude of the blood pressure amplitude data of each pulse beating period being output to the analog mercury column and the blood pressure display screen. So the medical non-mercury sphygmomanometer of the invention has high measurement accuracy, and has the advantages of direct viewing and convenience.

The invention discloses a Flos Caryophylli extractive, which is prepared by the following steps: (1) drying the Flos Caryophylli leaves at 40-65 DEG C, and crushing; (2) adding 95% ethanol according to the weight to volume ratio of 1: 3-9, conducting microwave treatment while electric heating at 500-600 W for 70-120 s, and filtering to obtain a filtrate; (3) adding 95% ethanol according to the weight to volume ratio of 1: 3-9, soaking 4-6 d, and filtering to obtain a filtrate; (4) adding 95% ethanol according to the weight to volume ratio of 1:3-9, conducting ultrasonic extraction with power of 500-650W for 1-1.5 h, and filtering to obtain a filtrate; and (5) merging the filtrates obtained in the step (2), (3) and (4), concentrating at 40-55 DEG C and 400-600 mm of mercury column to obtain an extract. The invention also discloses the application of the extractive to control of tobacco bacterial wilt disease. The invention can inhibit the growth of Pseudomonas solanacearum; after treatment by the extractive, Ralstonia solanacearum flagella disappear and the thalli are digested, so as to inhibit thalli protein synthesis, and reduce POD, CAT and SDH enzyme activity. In addition, control effect of tobacco bacterial wilt in greenhouse and field reach 71.5% and 59.7% respectively, therefore the invention has great application value.

The invention discloses a polyamine inhibitor for a water-based drilling fluid and a preparation method of the polyamine inhibitor. The structural formula of the polyamine inhibitor is as shown in thespecification. The preparation method includes the steps of firstly, weighing, by weight, 75-80 parts of maleic anhydride, 210-215 parts of triethanolamine, 8-12 parts of glacial acetic acid and 348-352 parts of tap water; secondly, placing the weighed maleic anhydride and triethanolamine in a reaction kettle under normal temperature; thirdly, rising the temperature in the reaction kettle to 80-90 DEG C in 4 minutes, and keeping the temperature for 30 minutes; fourthly, rising the temperature to 180 DEG C after the heat preservation, and using a vacuum pump to keep pressure in the reaction kettle in a 20mm mercury column state to perform reaction for 4 hours; fifthly, after the reaction, cooling and performing pressure relief, and cooling to 90 DEG C; sixthly, adding the glacial acetic acid and the tap water when required temperature is reached, and performing reaction for 2 hours to obtain the polyamine inhibitor. The polyamine inhibitor is applicable to a shale gas water-based drilling fluid system.

The invention relates to a production method of a glass thermometer without vacuum blowing processing. The method comprises the following steps: carrying out high temperature aging for 7 hours on thermometer pipe material whose contraction throat operation is completed, taking the pipe material out and carrying out natural cooling on the pipe material to 30-40 DEG C, placing the pipe material into a vacuum cabin for mercury injection, after mercury injection, dipping the pipe material into water with a constant temperature of about 42.25 DEG C, heating one end of the pipe material to enable amercury column to heat up and overflow, fusing an open end of the pipe material and carrying out capping processing, and selecting a thermometer with overflow length of 98-103 cm and pipe material length of 110-115 cm for carrying out subsequent processing. By employing the method provided in the invention, a production flow of the thermometer is optimized, production efficiency is raised, manpower cost is reduced, mercury evaporation pollution caused by a traditional production method is avoided, and health and security of operation personnel are ensured.

The invention provides a mercury column interface automatic regulation system which comprises an atmosphere pressure meter, a collection card, a PLC, a lifting system, a mercury cup, a mercury column and a rock core holder. The atmosphere pressure meter, the collection card, the PLC and the lifting system are successively electrically connected in series. The mercury cup is arranged on the top end of the lifting system and is fixedly connected to the lifting system. The mercury column is communicated with the mercury cup. A rock core pore structure measuring instrument with the mercury column interface automatic regulation system comprises an atmosphere pressure detection apparatus, a pressurizing apparatus, a pressure meter device and a rock core arranging apparatus. The atmosphere pressure detection apparatus and the pressurizing apparatus are connected to the pressure meter device through pipelines. The rock core arranging apparatus is connected to the pressure meter device through a pipeline. The measuring instrument avoids the influence of different atmosphere pressure on detection results, has high measuring accuracy and is low in error.

Provided is a micro pressure-temperature-humidity intelligent meter composed of a temperature sensor, a pressure sensor, a humidity sensor, a digital circuit, and a display portion. By means of the temperature change of a copper box, pressure change of a corrugated film on the pressure sensor changes the length of a mercury column in a capillary on a coil. The mercury column causes short circuit of a coil. The value of changed current in the coil is subjected to digital-to-analog conversion and the digital circuit displays a pressure value, a temperature value, and a humidity value on a liquid crystal panel. The copper box and the coil are pasted on a skeleton through epoxy resin and are fixed in a housing. No moving components are provided. The micro pressure-temperature-humidity intelligent meter has simple structure, utilizes digital technology, and is easy to be controlled in a concentrated manner and to display measured values through a network, and free of maintenance.

The invention discloses breathable cloth and a production technology of the cloth. The breathable cloth comprises polyester taffeta ripstop base cloth. The production technology comprises the following production steps: step 1, immersing the base cloth into a waterproof agent solution to perform waterproof treatment; step 2, rolling the waterproof treated base cloth and drying the base cloth, wherein a drying temperature is 60 to 170 DEG C; step 3, evenly sizing one side of two sides of the base cloth at least once, drying after each time of coating and finally drying to obtain the breathablecloth. According to the breathable cloth disclosed by the invention, appropriate amount of PU resin coating layers are coated to one side or two sides of the breathable cloth; under the appropriate pressure, warps and wefts of the cloth can open appropriate gaps under the control of a coating adhesive to achieve the purpose of accurately and constantly controlling breathability. According to the breathable cloth disclosed by the invention, the breathable cloth can maintain air pressure as a 100 to 2000mm mercury column in testing or forming a sealed inflation bag through the coating amounts ofthe coating layers when a testing constant inflation volume is not smaller than 500m<3>/min, and the breathability can be completely, constantly and accurately controlled in a certain range.

The invention discloses a sphygmomanometer. The sphygmomanometer comprises a first box body and a second box body, wherein an upper cover is arranged at the rear end of the inner cavity of the first box body; an illumination lamp is embedded in the upper end of the inner surface of the upper cover; an ultraviolet lamp tube is embedded in the right end of the inner surface of the upper cover; a controller is arranged at the lower end of the outer surface of the ultraviolet lamp tube; the controller comprises an illumination lamp switch and an ultraviolet lamp tube switch; a mercury column calibration gauge is arranged at the left end of the inner surface of the upper cover; the mercury column calibration gauge is connected with a mercury column pressure bottle through a pipeline; the mercury column pressure bottle is connected with a cuff through a pipeline; and the cuff is further connected with an inflatable balloon through a pipeline. The sphygmomanometer is provided with the second box body, a thermometer placement groove and a stethoscope placement groove are arranged in the upper surface of the second box body, and medical care personnel can be facilitated to place a thermometer and a stethoscope, thus the medical care personnel are facilitated to use the thermometer and the stethoscope, and are also facilitated to carry the sphygmomanometer, the thermometer and the stethoscope.

The present invention discloses an auxiliary device for blood pressure measurement, including an audio collection part, an image collection part, and a terminal device. The present invention further provides blood pressure measuring equipment. In the auxiliary device for blood pressure measurement in the present invention, the image collection part records a screen output of an electronic sphygmomanometer or a pressure value corresponding to a mercury column on a mercury column sphygmomanometer by taking a video or a picture, so as to obtain a pressure image signal, and the audio collection part obtains a pulse sound of an upper arm, so that blood pressure can be determined by using an auscultatory method according to the recorded pressure value and the sound. Compared with the prior art, the present invention improves the precision and convenience of blood pressure measurement, so that a vast majority of patients can independently measure blood pressure and obtain an accurate measurement result.