57results about How to "Flexible height" patented technology

The invention discloses an endoscope fiber Raman probe and a detection device. The endoscope fiber Raman probe comprises a lens, a circular ring lens, a filtering layer, a circular ring filtering layer, a center optical fiber bundle, a Raman collection optical fiber, an optical fiber cable, a connecting piece, a center optical fiber bundle branch and a Raman collection optical fiber branch; the Raman collection optical fiber annually surrounds the center optical fiber bundle; the lens and the filtering layer are arranged at the front end of the center optical fiber bundle; the circular ring lens and the circular ring filtering layer are arranged at the front end of the Raman collection optical fiber; the combined optical fiber bundle of the Raman collection optical fiber and the center optical fiber bundle extends through the optical fiber cable; the other end of the optical fiber cable is divided into a Raman collection optical fiber bundle and an excitation / endoscope optical fiber bundle by the connecting piece. According to the endoscope fiber Raman probe disclosed by the invention, integrated design of optical fiber Raman and optical fiber endoscope is realized; the device hasthe advantages of small volume, low price, high flexibility and accurate detection, and is more applicable to biological in-vivo and in-situ Raman detection, and is relatively easy and convenient to maintain.

The invention discloses a multifunctional power field transmitting facility, and mainly relates to the field of power facility planning. The multifunctional power field transmitting facility comprises rectangular frames hooked and hung on cables. Triggering baffles are hinged to the positions of openings of the rectangular frames. The inner ends of the triggering baffles press rubber clamping blocks with compression springs. A connecting plate is arranged below the rectangular frames and provided with a feeding platform. The feeding platform is provided with rubber belt tracks used for clamping and pushing the cables. Bearing pulleys are arranged below the connecting plate, the cables are wound around the bearing pulleys, the lower ends of the cables are wound around fixed pulleys, and the cables are provided with a lifting hopper. The fixed pulleys are installed on a fixing plate, and inserting columns are arranged on the bottom face of the fixing plate. The multifunctional power field transmitting facility further comprises fixing columns matched with the inserting columns. Spearheads capable of ascending and descending are arranged at the bottom ends of the fixing columns, and trundles are arranged on one sides of the fixing columns. The multifunctional power field transmitting facility has the beneficial effects that the cables can be stably pushed from the high position, conveying of objects and the cables between the high position and the ground can be finished, and the self-conveying function is achieved as well.

The invention discloses a vector tracking method for a GPS receiver. The steps are as follows: use the scalar tracking result to initialize the vector tracking loop, including the initial position, speed, clock difference, clock drift and satellite ephemeris of the receiver; Calculate the carrier and code NCO prediction parameters of the position, velocity, clock error, clock drift and satellite ephemeris; the output of the carrier frequency discriminator and code ring discriminator is used as the measurement information of the navigation filter to estimate the receiver's position, velocity, Clock difference and clock drift error, use the estimated information to correct the receiver position and velocity, and then use the corrected receiver position and velocity combined with the satellite ephemeris to calculate the carrier and code NCO to keep track of the input signal. The method of the present invention has good navigation accuracy and tracking performance, and at the same time has an excellent ability to instantaneously bridge the blocked signal, and can maintain good pseudo-code phase and carrier frequency tracking performance in an environment with a low carrier-to-noise ratio, and has broad application prospects .

The invention discloses a preparation method of bacterial cellulose-carbon nanotube / polyaniline composite microfibers, and the method comprises the steps: based on the microfluid spinning technology,taking a SA and BC-CNT dispersoid as a core layer, taking calcium chloride as a sheath layer, and forming the BC-CNT gel fibers through chelation; carrying out coagulating bath, washing, thermal shrinkage and cooling; soaking the prepared BC-CNT fibers into an aniline dispersoid, and adding an ammonium persulfate solution for reaction; and preparing the BC / CNT / PANI fibers. The preparation method of the miniature supercapacitor comprises the following steps: placing two composite microfibers on a PDMS substrate in parallel; respectively fixing the tails with copper wires; and then covering thesubstrate with a gel electrolyte and a PDMS precursor. The specific surface area and the electrochemical performance are increased through a layered core sheath and a porous structure in the compositemicrofibers, so that the supercapacitor has high energy density, high power density, good circulation retention capability and bending capability, and can be widely applied to portable and miniaturized electronic equipment.

The invention provides a vehicle body modal excitation device, which comprises an excitation mechanism and a bearing mechanism, and is characterized in that the excitation mechanism comprises an exciter, the bearing mechanism comprises a bearing platform and a fixing platform, and the exciter is arranged on the bearing platform; at least two brackets are arranged between the bearing platform and the fixing platform, each bracket is formed by hinging a first support rod and a second support rod, a first end of the first support rod is hinged with the bearing platform, and a second end of the first support rod is slidably connected with fixing platform; a first end of the second support rod is hinged with the fixing platform; the surface, which faces towards the fixing platform, of the bearing platform is provided with fixing blocks, each fixing block is provided with a threaded rod in a penetrating manner, one end of the threaded rod is provided with a rocker, and the other end of the threaded rod is commonly connected with the second end of each second support rod through a connecting piece. The vehicle body modal excitation device has the advantage of good height adjustment flexibility.

The invention discloses a suspended type adjustable protective cover mechanism of a woodworking disk saw. The suspended type adjustable protective cover mechanism comprises a protective cover supporting system, a protective cover adjusting rod and a protective cover. The protective cover is located on the disk saw arranged on a base. The protective cover supporting system is connected with a protective cover mounting rod and a vertical supporting rod, wherein the protective cover mounting rod comprises a transverse supporting rod and is vertically connected with the transverse supporting rod. A shaft sleeve is arranged in the protective cover mounting rod. A connecting shaft is arranged on the protective cover and arranged on the shaft sleeve. A U-shaped groove is formed in the top end of the connecting shaft. The protective cover adjusting rod is fixed to the U-shaped groove located at the top end of the connecting shaft through a pin shaft. According to the suspended type adjustable protective cover mechanism of the woodworking disk saw, raw material drawing is convenient, and waste utilizing, energy saving and environmental protection are achieved; meanwhile, the height of the protective cover of the protective cover mechanism can be adjusted according to the actual requirement, using is convenient, and height adjusting is flexible; and by using the protective cover, an people hurting accident due to improper operation of a worker is avoided, so that construction safety is improved greatly, and excellent popularizing value is achieved.

The invention discloses a universal wheel display support. The universal wheel display support comprises a pedestal, tread supporting wedges, a base and a rim supporting assembly, the tread supporting wedges and the base are arranged on the pedestal, and the rim supporting assembly comprises a supporting tube, a telescopic rod, locking rods, a supporting end and an adjusting cushion; the bottom of the supporting tube is hinged to the base, the bottom of the telescopic rod extends into the supporting tube, the locking rods are hinged between the supporting tube and the base for supporting, the supporting end is arranged on the top of the telescopic rod, the adjusting pad is arranged at the supporting end, a wheel is obliquely arranged on the tread supporting wedges, and the adjusting pad supports the inner side surface of a rim of the wheel. In this way, the universal wheel display support has the advantages that the height and angle of the rim supporting assembly are flexibly adjusted, the adaptability and supporting stability of the wheel are improved through the rapid adjustment of the adjusting pad, and the support can meet display requirements of new products in multiple specifications and sizes.

The invention relates to a preparation method and application of a flame-retardant coated fabric based on graphene oxide. The preparation method comprises the following steps: firstly immersing a cotton fabric in a graphene oxide aqueous dispersion to obtain a graphene oxide-coated cotton fabric, then immersing the graphene oxide-coated cotton fabric in a DMAEMA solution, carrying out ultravioletillumination to obtain a graphene oxide / PDMAEMA-coated cotton fabric, and finally, immersing the graphene oxide / PDMAEMA coated cotton fabric into ultrasonically treated hexagonal boron nitride nanosheet dispersion liquid to prepare the graphene oxide / PDMAEMA / hexagonal boron nitride sandwich-shaped layered nano-coating flame-retardant cotton fabric. The graphene oxide / PDMAEMA / hexagonal boron nitride sandwich-shaped layered nano-coating flame-retardant cotton fabric can be used for preparing a large-area fire early-warning sensor. The large-area fire early-warning sensor prepared from the flame-retardant coated fabric based on graphene oxide can realize large-area sensing, and is short in alarm time.

The invention discloses an automatic transmission device with a turnover assembly. The automatic transmission device with the turnover assembly comprises a turnover table, a supporting plate, a conveying seat, a sleeve clamping seat and a bottom supporting plate, wherein the cuboid supporting plate is horizontally arranged below the turnover table, the conveying seat is arranged above the supporting plate, and the sleeve clamping seat is arranged in the middle of the conveying seat. The automatic transmission device with the turnover assembly has the beneficial effects that a seventh motor drives two overturning clamping claws to overturn through two second swing rods respectively, the clamping interval of products is adjusted, it is guaranteed that the device can clamp and turn over the products with different shapes and sizes, the adaptive universality is guaranteed, rubber clamping blocks symmetrically arranged at the two ends of a clamping groove are utilized to clamp the surfacesof the products, and a plurality of concave strips matched with one ends of the rubber clamping blocks are attached to the surfaces of the products, so that the frictional resistance of the overturning clamping claws for clamping the products is guaranteed to be higher. The device is more stable and firm when the products are turned over, prevents the products from falling off the turnover assembly, and ensures that the turnover assembly does not scratch and wear the surfaces of the products.

The invention discloses a heat dissipation structure, which comprises a first radiator, a second radiator and a heat conduction unit, wherein the first radiator is used for dissipating heat of a firstpower unit, and is provided with a first heat dissipation pedestal having first heat dissipation fins; the second radiator is arranged opposite to the first radiator, is used for dissipating heat ofa second power unit, and is provided with a second heat dissipation pedestal having second heat dissipation fins; and the two surfaces, deviating from each other and parallel to each other, of the heat conduction unit are attached to the opposite end faces of the first heat dissipation pedestal and the second heat dissipation pedestal correspondingly, and the heat conduction unit is used for conducting heat between the first radiator and the second radiator. Correspondingly, the invention further provides a power module adopting the heat dissipation structure. According to the heat dissipationstructure and the power module, the heat of the first radiator and the heat of the second radiator are conducted, local high-temperature points of the first power unit and the second power unit are reduced, the temperature is more balanced, and therefore the heat dissipation structure and the power module can cope with different limit working conditions, and the heat dissipation efficiency is improved under the condition of the same cost.

The invention relates to the technical field of amphibious vehicles, and provides an amphibious vehicle which comprises a driving box body; a buoyancy cover provided with a first space, wherein the driving box body is rotationally arranged on the buoyancy cover, and the driving box body is located in the first space; a telescopic mechanism having one end hinged to the driving box body, and the other end hinged to the buoyancy cover; a girder having one end rotationally arranged on the driving box body; an elastic supporting piece having one end hinged to the buoyancy cover, and the other end hinged to the girder; a front wheel arranged at the front end of the driving box body; and a rear wheel arranged on the girder. After the telescopic mechanism is unfolded, the bottom of the rear wheelis higher than the bottom of the buoyancy cover and used for walking on water, and after the telescopic mechanism is contracted, the bottom of the rear wheel is lower than the bottom of the buoyancy cover and used for walking on land. By means of the technical scheme, the vehicle body is simple in structure, flexible and adjustable in height and smooth and stable in running.

The invention discloses a surface processing device for an automobile shell, and belongs to the technical field of automobile processing. The problem that external air is polluted during paint spraying because an existing device cannot process waste gas generated during paint spraying is solved. The surface processing device for the automobile shell is technically characterized by comprising a boxbody and a processing cavity, wherein the box body is internally provided with the processing cavity; the top of the processing cavity is provided with a paint spraying component; the middle part ofthe processing cavity is symmetrically provided with bearing components for placing the shell; the lower parts of the bearing components are provided with driving components for adjusting the heightsof the bearing components; air extraction components are arranged between the bearing components; and two sides of each air extraction component are connected with filter components through air ducts.According to the surface processing device for the automobile shell, the filter components are arranged, so that dust generated in the paint spraying process can be fully filtered, and external air pollution caused by waste gas is avoided; and meanwhile, the dust is discharged conveniently, the heights of the bearing components are flexible and adjustable, and the paint spraying efficiency is improved.

The invention discloses a legal knowledge propagating device. The device comprises a propagating device body composed of a lifting mechanism, a display mechanism and a power storage mechanism. The lifting mechanism is composed of a base, a first electric telescopic rod and a second electric telescopic rod. The bottom of the inner wall of the base is symmetrically and fixedly connected with the first electric telescopic rod and the second electric telescopic rod. By means of the first electric telescopic rod and the second electric telescopic rod, the height of a display board is flexible and adjustable, the applicable range is increased, so that the device can display legal knowledge to different groups of people, and the propagating range is wide. By means of a first rotating shaft and asecond rotating shaft, a propagating album can be displayed cyclically, more relevant knowledge can be displayed in the limited space, and the display information amount is increased. Under the effectof an infrared sensor, the propagating device solves the problem that the existing display device is formalist in structure, and is more humanized.

The invention discloses a bridge erection machine aided support leg structure. One end of the bridge erection machine aided support leg structure is hinged on a trunk beam of a bridge erection machine through an upper cross beam, and the other end of the bridge erection machine aided support leg structure is hinged on a support through a support steel pin; the bridge erection machine aided support leg structure consists of a plurality of telescopic joints by sleeving and splicing; the telescopic joints are in round tube structures, the surfaces of the round tubes are provided with a plurality of height adjusting holes, bolts are arranged to match the height adjusting holes, and the bolts pass through the corresponding height adjusting holes of the two adjacent telescopic joints to connect the two telescopic joints. Because the telescopic joints of the bridge erection machine aided support leg structure are in round tube structures and the adjacent telescopic joints are connected through the bolts and the height adjusting holes, compared with the traditional support leg structure, the bridge erection machine aided support leg structure has the advantages that: the structure is easily installed, the machining process is simple, and the height of the support leg can be adjusted flexibly, safely and reliably.

The invention discloses an auxiliary display stand for mechanical drawing teaching, which comprises a display stand body, wherein the display stand body is composed of a supporting mechanism, a drawing fixing mechanism, a lighting mechanism and a work piece display mechanism, The top of the supporting mechanism is fixedly connected with the drawing fixing mechanism, the top of the drawing fixing mechanism is fixedly connected with the lighting mechanism, one side of the drawing fixing mechanism is fixedly connected with the work piece display mechanism. The device has the advantage of compactstructure, and through arranging the supporting mechanism, the height of a fixed display panel can be flexibly adjusted according to requirements, and the height is flexibly adjustable, the drawing isconvenient for students to observe, through arranging the drawing fixing mechanism, fixing drawings of different sizes is facilitated through a distance adjusting slide block and magnet, the drawingfixing range of the fixed display panel is broaden, the practicability is improved, through arranging the work piece display mechanism, multi-angle display of the work piece is facilitated, the students' understanding ability is improved by comparing the work piece with the drawing, and the learning efficiency is improved.

The invention discloses a data machine room temperature inspection robot arranged at the top of a cabinet, and belongs to the field of data machine room thermal environment detection. The problems that the temperature of a data room space is difficult to monitor and the dust accumulated at the top of the cabinet is difficult to clean are solved. The data machine room temperature inspection robot mainly includes a robot body (1), a first robot brush (2), a robot universal wheel (4), a first robot power wheel (5), a first retractable spring temperature sensor (7), an infrared temperature sensor(9), a first cabinet (10), a first connecting plate (22) and the like. The telescopic temperature sensors are installed on the two sides of the robot body to measure the temperature distribution of front and rear entrances and exits of the cabinet, the infrared temperature sensor is combined to measure the temperature distribution at the top of the cabinet, the robot moves at the top of the cabinet, the space for additionally arranging a temperature detection system is saved, and the dust accumulated at the top of the cabinet is cleaned.

The invention discloses a mining, filling and retaining integrated fully-mechanized coal mining gangue filling working face system which comprises a moving platform, a gangue blocking template, a snatching mechanism and a grouting unit, the snatching mechanism is arranged on the moving platform in a sliding mode, and the snatching mechanism comprises a base and at least two active telescopic rods with one ends hinged to the base; the other end of each driving telescopic rod is detachably connected with the waste rock blocking template, each driving telescopic rod can rotate relative to the waste rock blocking template, and the waste rock blocking template can stretch out and draw back; the grouting unit comprises a grout storage barrel, a grouting pump and a self-propelled hollow grouting anchor rod which are sequentially connected through a pipeline, grouting holes corresponding to the self-propelled hollow grouting anchor rod are formed in the gangue blocking formwork, and the self-propelled hollow grouting anchor rod can penetrate through the corresponding grouting holes. According to the invention, the advancing efficiency of the working face is improved, and efficient coal mining-filling-entry retaining is realized.

The invention discloses a data room temperature patrol robot arranged on a room ceiling and a method and belongs to the field of data room thermal environment detection. Through the data room temperature patrol robot arranged on the room ceiling and the method, the problems that space temperature of a data room is difficult to monitor, safety of the top of a cabinet cannot be monitored, installation space in the room is narrow, and dust deposition on the ceiling is difficult to remove are solved. The data room temperature patrol robot mainly comprises a robot body (1), a first robot brush (2),a robot universal wheel (4), a first robot power wheel (5), first extensible spring temperature sensors (7), an infrared temperature sensor (9), a camera (10), a magnetic attraction guide rail (11),the ceiling (12), the first cabinet (13) and the like. The extensible temperature sensors are installed on the two sides of the robot to measure temperature distribution in all positions of the room and are combined with the infrared temperature sensor to measure temperature distribution of the top of the cabinet, safety monitoring of the room is conducted by the camera, the robot moves through the magnetic attraction guide rail installed on the cabinet ceiling, and installation space is saved.

The invention discloses a glass grooving machine, and relates to the field of grooving devices. The glass grooving machine comprises a base, a slope is arranged on the base, a conveying belt used forconveying glass is arranged on the slope, a pressing roller is arranged above the conveying belt, and a support is fixedly connected to the base, a plurality of sliding blocks are slidably connected to the base, and a plurality of positioning rollers are rotationally connected to each sliding block; the support and the positioning rollers are located at the lower end of the slope surface, a motoris slidably connected to the support, a grinding wheel is arranged at one end, close to the conveying belt, of the motor, a sliding groove, matched with the motor, is formed in the position, corresponding to the motor, of the support, the motor is located in the sliding groove, a spring is arranged in the sliding groove, the spring is located above the motor, one end of the spring abuts against the end part of the sliding groove, the other end of the spring abuts against the motor, one end, close to the base, of the sliding groove is connected with an ejecting rod in a sliding mode, the upperend of the ejecting rod abuts against the lower side of the motor, an incline is arranged at the lower end of the ejecting rod, the support is in threaded connection with a screw rod, and one end of the screw rod abuts against the incline. The glass grooving machine is good in grooving straightness.

The invention discloses an automatic pouring device for building construction concrete. The automatic pouring device comprises a loading frame and a pouring plate. The pouring plate is arranged belowthe middle portion of the loading frame. The top of the pouring plate is provided with a motor I. A rotating shaft I is rotatably connected below the motor I. The automatic pouring device has the beneficial effects that a plurality of pouring bases are arranged on a side mounting table and an inner mounting table, concrete is synchronously discharged from the pouring bases for pouring, and the plurality of pouring bases are distributed at equal intervals; therefore, on one hand, the device ensures concrete poured onto the construction ground with better uniformity and comprehensiveness, and the working efficiency of the device is improved; on the other hand, it is ensured that the device is better in efficiency and saves more time and labor when the device is used for pouring the concrete;and when the pouring plate is used for concrete pouring, a dragging rod II and the pouring plate are driven to be adjusted and move left and right, so that on the one hand, the working range of the device for pouring the concrete is expanded, and on the other hand, workers can adjust the working position of the pouring plate more conveniently and quickly, and it is ensured that the pouring platecan be used for pouring the concrete more uniformly.

The invention relates to the technical field of amphibious vehicles, and provides an amphibious vehicle, comprising: a driving box; a buoyancy cover; the buoyancy cover is provided with a first space; In the space; telescopic mechanism, one end of the telescopic mechanism is hinged with the drive box, and the other end is hinged with the buoyancy cover; the beam, one end of the beam is rotated and set on the drive box; the elastic support, one end of the elastic support is hinged with the buoyancy cover, and the other end is hinged with the buoyancy cover. The girder is hinged; the front wheel, the front wheel is set on the front end of the drive box; the rear wheel, the rear wheel is set on the girder, after the telescopic mechanism is opened, the bottom of the rear wheel is higher than the bottom of the buoyancy cover, which is used for walking on water. The bottom of the rear wheel is lower than the bottom of the buoyancy cover for land walking. Through the above technical solutions, the problems in the related art of simple body structure, flexible and adjustable body height, and smooth and stable driving are solved.

The invention provides a movable vertical multifunctional ligament stretcher. The movable vertical multifunctional ligament stretcher comprises a pedal, a waist hanging mechanism, a wireless remote control circuit board and a wireless remote controller; the pedal is cylindrical, and the axis of the pedal is parallel to the horizontal plane; and a driving end of a vertical linear motion driver is connected with the pedal through a fixing block, so as to drive the pedal to move linearly in the vertical direction. The wireless remote control circuit board is used for receiving a wireless controlsignal, so as to control the driving end of the vertical linear motion driver to move along the vertical direction; and the wireless remote controller has two buttons of ascending and descending, which are matched with the wireless remote control circuit board. Since the up and down movement of the pedal is controlled by a user directly through remote control, the height is flexible and the exercise effect is good; and combined with the shape of the pedal, the ligament stretcher does not need to be bound with the heel, andthe ligament stretcher can slide down relative to the pedal when needed,so that the ligament stretcher can prevent straining the body.

The invention discloses an automatic transmission device with a turnover assembly. The automatic transmission device with the turnover assembly comprises a turnover table, a supporting plate, a conveying seat, a sleeve clamping seat and a bottom supporting plate, wherein the cuboid supporting plate is horizontally arranged below the turnover table, the conveying seat is arranged above the supporting plate, and the sleeve clamping seat is arranged in the middle of the conveying seat. The automatic transmission device with the turnover assembly has the beneficial effects that a seventh motor drives two overturning clamping claws to overturn through two second swing rods respectively, the clamping interval of products is adjusted, it is guaranteed that the device can clamp and turn over the products with different shapes and sizes, the adaptive universality is guaranteed, rubber clamping blocks symmetrically arranged at the two ends of a clamping groove are utilized to clamp the surfacesof the products, and a plurality of concave strips matched with one ends of the rubber clamping blocks are attached to the surfaces of the products, so that the frictional resistance of the overturning clamping claws for clamping the products is guaranteed to be higher. The device is more stable and firm when the products are turned over, prevents the products from falling off the turnover assembly, and ensures that the turnover assembly does not scratch and wear the surfaces of the products.

The invention discloses a surface processing device for an automobile shell, which belongs to the technical field of automobile processing and solves the problem that the existing device cannot process the waste gas generated during painting and causes the outside air to be polluted during painting; its technical features include: There is a processing chamber in the box, a painting assembly is installed on the top of the processing chamber, a load-bearing assembly for placing the shell is symmetrically provided in the middle of the processing chamber, and a drive assembly for adjusting the height of the load-bearing assembly is provided at the lower part of the load-bearing assembly. There is an air extraction assembly between the load-bearing components, and the filter assembly is connected to both sides of the air extraction assembly through the air duct; the embodiment of the present invention is equipped with a filter assembly, which can fully filter the dust generated during the painting process and avoid exhaust gas pollution The outside air and dust are easily discharged, and the height of the load-bearing components is flexible and adjustable, which improves the painting efficiency.

The invention provides a blanket water absorption box for a squeezing part. The blanket water absorption box comprises a base, supports, adjusting screw rods, a flange and a box. The base is horizontally arranged, the left support and the right support are symmetrically and perpendicularly arranged on the left side and the right side of the base, holes for installing the adjusting screw rods are formed in the left support and the right support, the lower end of the left adjusting screw rod and the lower end of the right adjusting screw rod perpendicularly extend into the supports, and installing nuts are arranged at the upper end of the left adjusting screw rod and the upper end of the right adjusting screw rod; installing pieces are arranged at the two ends of the flange, arranged on the left adjusting screw rod and the right adjusting screw rod in a sleeving mode and fixedly installed through the installing nuts, the box is sleeved with the flange, and an adjusting handle is arranged on the box. The rotatable characteristic of the box is achieved through simple parts; further, as other parts are optimized, the advantages of being easy to install and maintain, flexible in using and rapid and accurate in adjustment are achieved.

The invention discloses efficient numerical control machine tool equipment for a modern factory, belongs to the technical field of numerical control machine tools, and solves the problems that becausethe position of a heat dissipation device cannot be adjusted by an existing device, the working efficiency of the heat dissipation device is low and the energy consumption is increased. The efficientnumerical control machine tool equipment is technically characterized by comprising a machine tool placing table and supporting legs, the bottom of the machine tool placing table is fixed to the supporting legs, a cooling mechanism is arranged above the machine tool placing table and comprises a cooling assembly, a filtering assembly and a lifting base, the lifting base is fixedly connected withthe filtering assembly, and the cooling assembly is arranged above the filtering assembly; and a height adjusting assembly used for adjusting the cooling mechanism is further arranged on the machine tool placing table. According to the efficient numerical control machine tool equipment, the cooling mechanism is arranged, so that rapid cooling treatment on the machine tool is achieved, and the heatdissipation efficiency of the machine tool is improved; and meanwhile, the height of the cooling mechanism is flexible and adjustable, so that cooling treatment on different types of machine tools isfacilitated.

The invention discloses a method for improving product safety of Internet of Things through non-maskable interrupt. All safety applications / operations are executed in NMI (non-maskable interrupt). The method includes (1), calling a safety application / operation N by a system; (2), configuring a calling mark of the safety application / operation N; (3), triggering the NMI, and by judging the mark set in the step (2) via an NMI processing function, learning the called safety application / operation and acquiring parameters; (4), acquiring various secret keys needed for the safety application / operation N from OTP (one time programmable), and storing the secret keys into an applied resource; (5), acquiring plaintext data and codes through the secret keys; (6), executing logic, including data processing and result encrypting and signing, of the safety application / operation N; (7), deleting encrypted data and code plaintexts; (8), cleaning and releasing the applied resource, and quitting the NMI; (9), sending result data of the safety application / operation N; (10), ending calling of the safety application / operation N.