75results about How to "Total light weight" patented technology

The invention belongs to the technical field of photoelectric LED lighting, and relates to a large-power LED lamp. The large-power LED lamp comprises a light source base plate; an LED light source is mounted at one end of a light source base plate, and while the other end of the light source base plate is fixedly connected with at least one radiator; the radiator comprises an outer barrel wall which extends in the vertical direction, and a plurality of radiating fins which are positioned in the outer barrel wall and connected to the outer barrel wall; the radiating fins divide the radiator into a plurality of radiating channels which extend in the vertical direction; the top parts of the radiating channels directly communicate with the outside air. According to the large-power LED lamp, the generated heat is timely transmitted to cold air in the radiating channels through the light source base plate, the cold air is heated and floated to be subjected to convection dissipation with the outside air on the top ends of the radiating channels, then the heat in the radiating channels can be timely radiated, thus the temperature of the light source base plate is reduced, an LED chip can be kept in a relatively low temperature state, and as a result, the service life of the LED chip is prolonged, and the demand of a large place on a large-power lighting device can be met.

The invention discloses a portable pipeline interior washing device. The portable pipeline interior washing device comprises a first power working device, a second power working device, a brush head used for pipe interior washing and two sections of steel wire ropes connected with the two sides of the brush head, wherein the first power working device and the second power working device are arranged at the two ends of a pipeline; one ends of the two sections of steel wire ropes are connected to the first power working device and the second power working device, and the other ends of the two sections of steel wire ropes are connected with the two ends of the brush head; the structure of the first power working device and the structure of the second power working device are the same, the steel wire ropes are wound through a gear motor, the brush head is pulled to do back-and-forth motion in the pipeline, and therefore the pipeline washing work is done; and the installation positions of a brush bristle barrel and a brush bristle body are changed so that pipelines with different diameters can be washed. The portable pipeline interior washing device is simple in structure, easy to disassemble and maintain and low in environmental requirement; the brush head is adopted for washing, damage to a pipeline inner bore is avoided, and meanwhile washing of the pipelines with different diameters can be completed.

The invention discloses a corner post-free carriage for a railway vehicle, which comprises a floor (1), side wall boards (2) positioned on two sides of the floor (1), and end sheathings (3) positioned at two ends of the floor (1); the bottom sides of the side wall boards are bent upwards, and the bent parts (2) are subjected to assembly welding with corresponding sides of the floor (1) in a lapped way; the two ends of the floor (1) are bent upwards to form upper flanges which are lapped with the bottoms of the corresponding end sheathings (3) and are fixed by welding; and two sides of the end sheathings (3) are deformed and bent to form right-angle flanges which are subjected to assembly welding with corresponding ends of the side wall boards (2) in a lapped way. Compared with the prior art, the corner post-free carriage has simple structure, easy processing and manufacturing, less working procedures, low manufacturing cost, and light total weight of the whole, improves the carrying capacity, and contributes to reducing energy consumption of locomotives to save the energy.

The invention discloses an intelligent line switching device for an electrical test of a power transformer, and the device comprises a general control unit, a dielectric loss test unit, an insulationresistance test unit, a DC resistance test unit, an on-load tap changer characteristic test unit and a line switching device. The main control unit is in control connection with the dielectric loss test unit, the insulation resistance test unit, the DC resistance test unit, the on-load tap-changer characteristic test unit and the line switching device through a control bus. The line switching device and a tested transformer are connected through a test line. According to the invention, the functions of testing dielectric loss, insulation resistance, DC resistance and characteristic testing ofan on-load tap-changer are integrated into one instrument. The device completes the testing of all test items of all detection parts of the transformer under the cooperation of the line switching device.

The invention discloses a laser bright flashlight. The laser bright flashlight comprises a rear cover, a sleeve, a battery, a circuit board, a laser, a focus lens, a focusing rack, a focusing ring, a lamp holder, a heat sink, LEDs, reflective cups, a window mirror and the like, wherein the battery is a high-capacity battery; the circuit board has the function of controlling the laser and the LEDs; the laser can emit continuous and pulse laser; the LEDs can emit white light with different brightness; the spot size of laser can be adjusted; the white light emitted by the LEDs is sent out after being collimated by the reflective cups; and laser and the LED light source can be sent out from the end surface or the side surface respectively. The laser bright flashlight realizes integration of laser equipment and white-light illuminating equipment, is convenient and quick in switching between laser and white light, long in service life, high in practicability and convenient to popularize.

The invention relates to a trimming mechanism of a plastic oil tank and a method of trimming the oil tank. The trimming mechanism comprises a big robot, a barcode printer, a weighing table and a trimming conveying line, wherein the big robot, the barcode printer and the weighing table are all located at the right side of the trimming conveying line, an oil tank grasping mechanism capable of grasping the plastic oil tank is arranged on the end of a mechanical arm of the big robot, the barcode printer and the weighing table are respectively arranged in a working travel range of the mechanical arm of the big robot, a small robot is arranged on a position, which is opposite to the big robot, at the left side of the trimming conveying line, a trimming knife capable of cutting trimmings of joint lines of the plastic oil tank is arranged on the end of a mechanical arm of the small robot, two trimming tables with the consistent shape and size are arranged between the big robot and the small robot in parallel, and the two trimming table are both fixed above the trimming conveying line. When one plastic oil tank is trimmed by the small robot, waiting, grasping, barcode pasting and weighing of another plastic oil tank can be completed by the big robot, and the trimming speed is quick, so that the production period is shortened, and the production efficiency is improved.

The invention relates to a large detachable table liquid separator, which is used to distribute the in-tower liquid, belonging to the liquid-liquid separation and liquid-gas separation device. Wherein, it arranges beam inside the tower wall as the liquid collection groove on which the liquid distribution groove is arranged; the liquid distribution groove is connected to the block connecting plate as a monomer to connect the beam liquid collecting groove, while another opposite edges are connected via the connecting plate; the beam liquid collecting groove, liquid distributing groove, block connecting plate and connecting plate are connected as a whole. The invention has simple structure, enlarged application range, high rigidity, uniform liquid distribution, lower height, lower weight and balanced gas channels. And it can cover magnification effect.

The invention wireless video transmitter and relevant data process method relates to a video signal transmission device and relevant data process method. The core of the wireless video transmitter is a video processor with a universal data storage, which stores image data received by a Wi-Fi wireless network adapter; a read-only storage, which stores video data de-compression processes and interpretation procedures of all press-key functions; a high-speed buffer storage, which stores intermediate data during the course of the video data process; a key pad comprising a plurality of function press-keys; a Wi-Fi wireless network adapter and antenna, which receives high-resolution video image data that a portable PC picks up in an identical period and passes compression process through the Wi-Fi wireless mode transmission; and a video output adapter, which is connected with a projector or a large-screen display device. The invention resolves the problems that, when portable PCs are necessary to transmit high-resolution video image data to a projector or a large-screen display device through cable wires, a lot of trouble might be caused in connection and disconnection of the cable wires.

The invention discloses a production line capable of replacing a conventional hot continuous rolling production line of wide strip steel. The production line comprises a furnace area device, a rough rolling area device, a shearing area device, a steekle mill area device and a coiling area device which are successively arranged and sequentially connected. The production line can be used for completing a rolling process by using only four rolling mills; the rolling process can be completed by the conventional hot continuous rolling production line of the wide strip steel by using at least eight or nine rolling mills. According to a processing process using the production line capable of replacing the conventional hot continuous rolling production line of the wide strip steel, the yearly output is basically consistent with that of the conventional hot continuous rolling processing process; the produced steel type range is wide; the thickness of products is generally 1.5-25.4mm. Compared with a laminar cooling device of the conventional hot continuous rolling of the wide strip steel, the length is reduced by 50%; compared with the conventional hot continuous rolling of the wide strip steel, the length of a whole output roller channel is shortened by 1 / 3, so that the total length of the production line is shortened; the total weight of equipment is reduced; the power and energy consumption of a motor are small; the cost of normal operation and maintenance of the equipment is reduced; the oxidation time of the strip steel in a coiling furnace is shortened, so that the surface quality and the yield of the strip steel are improved.

The invention relates to a high pressure and high power series thyristor self-cold and hot pipe radiator unit; a hot pipe radiator is connected with a thyristor in series as well as in press connection with the thyristor in sequence; the upper and the lower parts of the hot pipe radiator are fixed by high pressure resistant epoxy insulation boards; an end aluminium alloy metal block, an ejector screw rod and a laminated spring are used for leading a thyristor valve to be pressed and connected in series with proper force; meanwhile, high voltage distribution and insulation property are considered in a whole, so that the insulation problem caused in the process that the high pressure thyristor is closely connected and pressed with the hot pipe radiator in series can be solved. The invention has the advantages of compact structure, high heat dissipation efficiency, high pressure resistance, no need of maintenance, convenient combination, integral modularized assembly, etc.

The invention provides a set of a special electromobile road system arranged in a house building for popularizing an electromobile. With the increasing of the traffic congestion, the energy risk and the worsening of the environment pollution, the development of green energy traffic, namely the electromobile, is the only way to the modernization with China. The electromobile has a special advantage of zero release, so that a set of special electromobile road system which is arranged in the house building and is provided with aerial cables is suitably developed. The special electromobile road system arranged in the house building has the advantages that (1) the special electromobile road system is provided with a plurality of vanes for large-flow automobile travelling; (2) the special electromobile road system can avoid the influences of various severe weathers on the electromobiles; (3) the security of road traffic is greatly enhanced; (4) the time and the energy can be saved by using a non-barrier road system; and (5) the special electromobile road system can be supplied with electric energy anytime like the electromobile, so that the worry of an automobile owner about a driving range can be entirely avoided, furthermore, a quantity of vehicular batteries can be reduced, and the weight is reduced, reversely, less energy is consumed, so that the popularization of the electromobile and the construction of the special road system are in positive cycle.

The invention particularly relates to a novel pressure-resistant carbon fiber tube with the compact structure. Each of the two ends of the carbon fiber tube is bonded to one end of a metal pipe joint,and the other end of the metal pipe joint is clamped into a locating hole. The inner sidewall of each locating hole is fixedly connected with the outer sidewall of a first rubber ring. The inner sidewall of the first rubber ring located at the upper end of the carbon fiber tube is provided with an upward inclined serrated convex part. The outer side face of the portion, located in the corresponding locating hole in a sleeved mode, of each joint is fixedly connected with the inner side face of a second rubber ring. The outer sidewall of a second rubber ring located at the upper end of the carbon fiber tube is provided with a downward inclined serrated convex part. Each upward inclined serrated convex part and the downward inclined serrated convex part are arranged in a staggered mode. Tensile force is transmitted through the carbon fiber tube. Pressure is transmitted through a metal pressure rod. The carbon fiber tube is prevented from being pressed. The service life of the carbon fiber tube is effectively prolonged.

The invention relates to a direct current rotary cultivator, which comprises a machine body (5), a left handrail component (2), a right handrail component (1), a left knife rest component (8), a right knife rest component (7), a slotting tool component (4), a switch box component (10), a walking wheel component (11) and a transmission box (9), wherein an output end of the transmission box (9) is respectively connected to the knife pivots of the left knife rest component (8) and the right knife rest component (7); the switch box component (10) is arranged on the left handrail component (2) or the right handrail component (1); the direct current rotary cultivator also comprises a direct current power supply (3) and a direct current motor (6) installed on the machine body (5); the switch box component (10) and the direct current power supply (3) are both connected to the direct current motor (6) through leads; and an output shaft of the direct current motor (6) is connected to an input end of the transmission box (9). The direct current motor is used as a driving device of the direct current rotary cultivator, no externally connected power line and no diesel oil or gasoline are required, and the direct current rotary cultivator has the advantages that the noise is low, the energy is saved, the environment is protected, and the operation is convenient.

The invention provides an automatic driving manned trolley which comprises a chassis, driving wheels, a steering mechanism, a driving mechanism, a brake mechanism and a control mechanism. The driving wheels are located at the bottom of the chassis and comprise front wheels and rear wheels. The steering mechanism is located on the rear side of the chassis and connected with the rear wheels. The driving mechanism is located on the front side of the chassis and connected with the front wheels. The brake mechanism is located on the front side of the chassis and connected with the front wheels. The control mechanism is connected with the steering mechanism, the driving mechanism and the brake mechanism and comprises a controller and a wireless communication module connected with the controller. The self-driving manned trolley provided by the invention is light and handy in structure, can be driven into various non-motorized vehicle lanes with relatively weak bearing capacity and narrow roads into which traditional vehicles cannot be driven, and cannot cause damage to road surfaces. The automatic driving manned trolley can realize complete automatic driving, is convenient to use, can fully liberate limbs and energy of a user, and greatly improves the riding experience feeling.

The invention relates to the technical field of heavy water reactor nuclear fuel loading and unloading, and particularly discloses a heavy water reactor nuclear power station loading and unloading machine remote emergency operation tool and an operation method. The tool comprises a driving mechanism, a driving long rod, a middle guide support and a driving head assembly; the middle guide support is installed in a bottom plate through hole in a corresponding position of the lower portion of a heavy water reactor nuclear power station loading and unloading machine, and the middle guide support can guide and support the driving long rod; the driving long rod is a rigid long rod with any length formed by connecting a plurality of sections of middle connecting pipes; the lower end of the long driving rod is connected with the driving mechanism installed on the ground, and the driving mechanism can drive the driving head assembly installed on the upper portion of the long rod to ascend, descend and rotate within a certain range. The heavy water reactor nuclear power station loading and unloading machine remote emergency operation tool is easy to install, convenient to operate and safe and reliable to use.

The invention discloses a caterpillar band system of a movable heavy engineering machine and an engineering vehicle. The caterpillar band system comprises a caterpillar band, a driving wheel, a guiding wheel, multiple supporting wheels and multiple support chain wheels; the caterpillar band is composed of multiple caterpillar band plates which are sequentially connected and form a closed loop; thedriving wheel is arranged in the caterpillar band and located at the rear end of the caterpillar band; the guiding wheel is arranged in the caterpillar band and located at the front end of the caterpillar band; the supporting wheels are arranged in the caterpillar band at intervals and located at the lower portions between the driving wheel and the guiding wheel; the support chain wheels are arranged in the caterpillar band at intervals, and located at the upper portions between the driving wheel and the guiding wheel. By means of the system, the raceway face contact condition between the caterpillar band plates and the supporting wheels, the guiding wheel and the support chain wheels is greatly optimized, the caterpillar band can provide continuous support for the supporting wheels, thecontact stress is smaller, the overall casting manufacturability is better, the overall weight is lower, and the flexibility and maneuverability of the complete machine are conveniently improved on the condition that the reliability is guaranteed.

The invention relates to an LED lamp and a manufacturing method of the LED lamp. According to the LED lamp, the outer surface of a radiator is connected with a light source module, the light source module is connected to a lamp pole fixing assembly on the inner surface of the radiator through a connecting assembly, and the light source module, the radiator and a power source assembly are packaged through a sealing material. The manufacturing method comprises the steps that an aluminum substrate is processed through cutting and punching to form a U-shaped frame with a plurality of parallel L-shaped cooling fins, the cooling fins are stretched, and then a plurality of cooling grooves which are communicated with the outside world are formed in the U-shaped frame; LED light sources and back sealing supports are connected to the corresponding portions of the inner plane and the corresponding portions of the outer plane of the U-shaped frame of the radiator respectively; the positive electrodes and the negative electrodes of the LED light sources are connected with PCBs in a welding mode through connecting contact pins, so that the LED light sources are connected in series and in parallel; sealing spaces of the back sealing supports located among the light source module, the PCBs and the radiator are filled with sealants; the light source module and the radiator are connected to the lamp pole fixing assembly through the connecting assembly.

The invention provides a device for limiting the activity range of micro piercing-sucking type micro-insects and a method for observing the micro piercing-sucking type micro-insects. The device comprises a housing, an isolating part and a clamping part, wherein the housing is provided with an accommodating space for limiting the micro piercing-sucking type micro-insects within a certain range, and a plurality of ventilation holes are formed in the top and side wall of the housing; the isolating part abuts against the lower edge of the housing, and the position, close to the central area, of the isolating part is hollow; the clamping part is provided with two clamping arms which form a U-shaped structure and sequentially presses the housing and the isolating part on a plant leaf through the two clamping arms. The device for limiting the activity range of the micro piercing-sucking type micro-insects is suitable for the micro piercing-sucking type micro-insects, light in total weight, good in isolation, firm in fixation, and simple to operate, and the production cost is reduced; the method for observing the micro piercing-sucking type micro-insects is simple to operate, the survival rate is increased, and the efficiency is increased.

The invention discloses a measurement method for improving the precision of multi-dimensional finishing, which comprises a base provided with slide rails, a slide seat arranged on the upper surface of the base and engaged with the slide rail, a vertical slide fixed on the slide seat The rod, the lifting part that is sleeved on the vertical rod and can move up and down along the length direction of the vertical rod, the horizontal bar that is arranged on the vertical rod and can be adjusted in length relative to the lifting part, and any end of the horizontal rod is set There is a measuring head, which also includes a plurality of pull rods, the upper ends of the pull rods are fixedly connected with the cross bar, the lower ends of the pull rods are fixed on the sliding seat, and the pull rods are arranged around the vertical rod in a ring shape; the pull rods are two Section combined structure, the material of the vertical bar, the horizontal bar and the tie bar is the same, and the three are all equipped with temperature sensors. The invention has a simple structure, is convenient for the disassembly and transportation of the three-dimensional measuring machine, and is also beneficial for reducing the deformation of the arm of the three-dimensional measuring machine, and is convenient for realizing the three-coordinate on-the-spot measurement of the workpiece, and at the same time, the accuracy of the obtained value is high.

The invention discloses a light manual power core taking machine for engineering geological investigation. The light manual power core taking machine comprises a drilling bit, a core taking device anda drilling rod which are sequentially connected from bottom to top. The core taking machine further comprises a heavy punch power assembly. The heavy punch power assembly is detachably connected to the top end of the drilling rod. The heavy punch power assembly is used for completing labor power lifting to strike drilling, and thus the drilling bit and the core taking device take an undisturbed sample on the soil layer. The core taking machine is simple in structure, light and convenient to operate, for simple exploration, the tunneling depth is large, the price is low, light dynamic soundingin-situ testing work can be completed, and the engineering geological investigation can be carried out beneficially and smoothly.

The invention discloses an energy-saving and environment-protecting rotary cultivator which comprises a cultivator body (5), a left handrail assembly (2), a right handrail assembly (1), a left tool rest assembly (8), a right tool rest assembly (7), a slotting tool assembly (4), a switch box assembly (10), a walking wheel assembly (11) and a transmission case (9). The output end of the transmission case (9) is connected with tool shafts of the left tool rest assembly (8) and the right tool rest assembly (7), and the switch box assembly (10) is installed on the left handrail assembly (2) or the right handrail assembly (1). The energy-saving and environment-protecting rotary cultivator further comprises a direct-current power supply (3) and a direct-current motor (6) installed on the cultivator body (5); the switch box assembly (10) and the direct-current power supply (3) are both connected with the direct-current motor (6) through wires, and an output shaft of the direct-current motor (6) is connected with the input end of the transmission case (9). According to the energy-saving and environment-protecting rotary cultivator, the direct-current motor is adopted as a driving device, an external power supply wire is not needed, diesel oil or gasoline does not need to be used, and the advantages of being low in noise, economical in energy, environmentally friendly and convenient to operate are achieved.

The invention relates to a police anti-stabbing garment which comprises anti-stabbing layers and a coat. Each anti-stabbing layer comprises chips (1), buffering layers (3) and a protective cover (9). A plurality of chips (1) are in alignment, stacked and riveted into a whole through rivets (2). The two buffering layers (3) cover the two sides of the chips (1) respectively, and the edges of the two buffering layers (3) are sealed in an adhesion mode. The protective covers (9) fully cover the chips (1) which are covered with the buffering layers (3), and the edges of the protective covers are sealed in an adhesion mode. The coat comprises a front piece (4), a rear piece (5), a shoulder adjusting belt (6) and a waist adjusting belt (7). The anti-stabbing layers are matched to be assembled in the front piece (4) and the rear piece (5) respectively. A manufacturing method of the police anti-stabbing garment comprises the steps of S1 material selecting, S2 blanking, S3 rolling, S4 riveting, S5 attaching, S6 packaging and S7 assembling. The police anti-stabbing garment has the advantages that the manufacturing process is simple, the production efficiency is high, the safety performance is stable, the weight is low, and the comfort degree and the flexibility are good.

The invention discloses a preparation method for a carbon / carbon composite material hollow plate. The preparation method comprises the following steps: (1) preparing a raw material and a mould; (2) making a blank; (3) solidifying a blank body; (4) performing carbonization treatment; (5) performing high-temperature treatment; (6) performing density treatment: performing the density treatment on theblank body by using a technology mode of chemical vapor deposition and / or resin impregnation-solidification-carbonization-high temperature circulation; and (7) mechanically processing. The carbon / carbon composite material hollow plate prepared by the preparation method is light in total mass of a product, and is capable of greatly reducing the production cost while the mechanical and thermal properties are satisfied. In addition, the prepared hollow plate provides an air guide channel which is used for manufacturing a high temperature furnace. The possibility is provided for accurate designsof a high temperature furnace thermal field, a cooling speed and a cooling point, and the hollow plate is beneficial to improve the product quality and the stability of the high temperature furnace.

The invention discloses a small multi-purpose crane, comprising a hoisting arm, a rotary frame, a flexible drive device, a lifting drive device, a sleeve and a bracket, wherein a support platform is arranged above the rotary frame, two sides of the rotary frame are provided with sliding channels, and a centre column is arranged below the rotary frame in a welding way. The centre column penetrates through the sleeve, and the sleeve is connected with the bracket. The hoisting arm comprises a pair of parallel sliding rods and cross beams which are welded at the front sides and the rear sides of the sliding rods. The sliding rods of the hoisting arm are sleeved in the sliding channels at the two sides of the rotary frame. The flexible drive device comprises a motor No.1, a speed reducer No.1, a driving gear No.1, a driven gear No.1, a screw lead, a nut and a hand wheel. The lifting drive device comprises a motor No.2, a speed reducer No.2, and a winch. The winch is formed by coaxially connecting two winding drums, a steel wire rope is wound on each winding drum, and the steel wire rope is connected with a hang hook after bypassing a fixed pulley. The small multi-purpose crane is flexible and convenient to use. The hoisting arm is flexible, and the turning radius is small, so that the hoisting arm can be applied indoors or outdoors and can be used for hoisting medium-and-small sized objects.

Bodywork component comprising at least one outer sheet metal, at least one reinforcement support and one foamed material disposed in-between the outer sheet metal and the reinforcement support, wherein the foamed material is a blown material (11) that is initially placed in blowable form and then blown by feeding heat into the space (12) between the reinforcement support (10) and the outer sheet metal (13). The bodywork component can be produced by initially placing an expandable material (11) in the form of a foamed material and expanding said expandable material (11) by feeding heat into the space (12) in-between the reinforcement support (10) and the outer sheet metal (13), thereby producing a connection between the reinforcement support (10) and the outer sheet metal (13).

The invention discloses a novel ocean bottleneck type tower-shaped derrick and a manufacturing method thereof. The derrick is obtained through combining, welding and manufacturing by a structural steel assembly welding tool and integral connection by bolts, the assembly welding tool enables cross splice welding structural members of upright angle iron to be located and clamped fast, advanced manufacturing and welding processes are adopted for a clamping tool, and welding and fast machining of connection devices are completed. Compared with the prior art, the derrick is purely formed by assembling and welding structural steel and is simple in structure, light in total weight, high in strength and good in rigidity; the combination quality of the derrick is guaranteed, and the problems that assembly of work-pieces is difficult, the welding quality is poor, welding deformation occurs and positioning deviation of connection holes occurs in the manufacturing process are solved.

The invention discloses a novel ocean bottleneck type tower-shaped derrick and a manufacturing method thereof. The derrick is obtained through combining, welding and manufacturing by a structural steel assembly welding tool and integral connection by bolts, the assembly welding tool enables cross splice welding structural members of upright angle iron to be located and clamped fast, advanced manufacturing and welding processes are adopted for a clamping tool, and welding and fast machining of connection devices are completed. Compared with the prior art, the derrick is purely formed by assembling and welding structural steel and is simple in structure, light in total weight, high in strength and good in rigidity; the combination quality of the derrick is guaranteed, and the problems that assembly of work-pieces is difficult, the welding quality is poor, welding deformation occurs and positioning deviation of connection holes occurs in the manufacturing process are solved.

The invention discloses a measuring instrument device convenient to correct measured values. The measuring instrument device comprises a base provided with sliding rails, a sliding base arranged on the upper surface of the base and engaged with the sliding rails, a vertical rod fixed on the sliding base, a lifting part which sleeves the vertical rod and can do lifting motion along the length direction of the vertical rod, a cross rod with adjustable extending length relative to the lifting part, and a plurality of pull rods, wherein the cross rod is arranged on the lifting part, an arbitrary end of the cross rod is provided with a measuring head, the upper end of each pull rod is fixedly connected with the cross rod, the lower end of each pull rod is fixed on the sliding base, and the pull rods are arranged on the periphery of the vertical rod annually; and the pull rods are of a two-section combined structure, the vertical rod, the cross rod and the pull rods are made of same materials, and each of the vertical rod, the cross rod and the pull rods is provided with a temperature sensor. The measuring instrument device is simple in structure, is convenient in disassembly and transportation of the 3D measuring machine, is conductive to reducing deformation of arms of the 3D measuring machine, and is high in accuracy of the measured values.