68results about How to "Play a shock absorber" patented technology

The invention discloses a friction pendulum support equipped with annular steel plates. The friction pendulum support comprises upper anchoring rods, an upper support plate, high-strength bolts, a ball crown, an upper wear-resisting plate, the annular steel plates, a lower wear-resisting plate, a lower support plate, lower anchoring rods and a sliding surface, wherein the upper support plate and the upper wear-resisting plate are in cylindrical surface contact; the lower support plate and the lower wear-resisting plate are in cylindrical surface contact; the ball crown is in spherical surface contact with the upper support plate and the lower support plate, the upper part of the ball crown is hinged with the upper wear-resisting plate, the annular steel plates are mounted between the upper support plate and the lower support plate, the upper ends of the annular steel plates are anchored at the bottom of the upper support plate by the high-strength bolts, and the lower ends of the annular steel plates are anchored at the top of the lower support plate by the high-strength bolts. The friction pendulum support can provide an additional damping ratio for the structure, change the natural vibration period of the upper structure, reduce the structure earthquake response, limit relative displacement between the upper structure and the lower structure and finally prevent the upper part and the lower part from being separated, so that the upper structure cannot be overturned.

The invention relates to a preparation method of a thermosensitive polyurethane embedding adhesive. The preparation method comprises the following preparation steps: 1, uniformly mixing polyether polyol, a thermosensitive catalyst and a thermosensitive auxiliary agent to obtain a polyol component; 2, uniformly mixing a fire retardant and polyisocyanate to obtain a polyisocyanate component; and 3, uniformly mixing the polyol component and the polyisocyanate component according to the mass ratio of 100:50-100 so as to obtain the thermosensitive polyurethane embedding adhesive. The thermosensitive polyurethane embedding adhesive is not solidified at normal temperature within 80 minutes. Within 40-90 DEG C, solidification speed is accelerated rapidly with the rising of the temperature. At 90 DEG C, the fastest solidification time is 1 minute 30 seconds. Main properties of the embedding adhesive are as follows: hardness: Shore A hardness 30-100; tensile strength (MPa): 0.4-1.0; volume resistivity (omega.M): being greater than 1*1013; fire resistance UL94; and vertical burning: V0.

The invention discloses a fireproof expansion sealing strip which has the effects of shock absorption, fire protection, water resistance, sound insulation, thermal insulation, dust prevention and fixing. A sheath of the sealing strip adopts modified PVC; modified expanded graphite is formed inside the sealing strip; expanded graphite inside the fireproof sealing strip on the market can become loose and drop off after being burnt in a big fire, sealing effect is easy to lose, and black toxic smoke can be produced, so that the harm to human body in a fire scene can be improved. The fireproof sealing strip can be expanded but not become loose and drop off after being burnt in a big fire, can maintain integrity, reduce the extension of the fire, cannot generate black smoke, is good in expansibility, completeness and sealing property in case of a fire, and is good in ageing resistance at ordinary times.

The invention discloses a punching die. A bottom plate is included. The middle point position of the top of the bottom plate is fixedly connected with a supporting base. The top of the supporting baseis fixedly connected with a workbench. The positions, located on the left side and the right side of the workbench, of the top of the bottom plate are fixedly connected with fixing plates, and the tops of the two fixing plates are fixedly connected through a top plate. Through mutual cooperation of a drive motor, a drive rotation shaft, a first gear, a second gear, a threaded rotation shaft, first sliding grooves, first sliding blocks, threaded sleeves, first bearings, a sliding rod, a fixing base and a punching die head device, the problem that according to a common mechatronics punching die, punching die head replacement is not convenient is solved; and a clamping connection manner is adopted, when a punching die head breaks down, the punching die head is conveniently replaced, the workefficiency is improved, the component production capacity is increased, accordingly, the production cost is reduced, and great convenience is brought to component machining work.

The invention provides an epoxy resin composition used for shielding a deep well submersible pump and a casting method thereof, belonging to the technical field of polymer material application and solving the problems that the existing epoxy resin curing agent has toxicity and high cost. The epoxy resin composition used for shielding the deep well submersible pump comprises the following components by weight portions: 100 portions of bisphenol A epoxy resin, 50 to 120 portions of cashew nut shell oil curing agent, 100 to 300 portions of packing, and 0.1 to 5 portions of curing promoter. The casting method comprises the following steps: A. stirring; B. vacuum casting; and C. curing. The epoxy resin composition used for shielding the deep well submersible pump has wide material source, low price and no toxicity; the casting method adopts the epoxy resin composition as an encapsulating material for shielding a motor stator of the deep well submersible pump and can have effects of insulation, fixing, damping, heat resistance and sealing.

The invention relates to a thermal management system for a power battery. The thermal management system is mounted in a battery box and comprises at least two core assemblies and a water circulation pipeline, wherein the at least two core assemblies are connected in parallel, arranged on the water circulation pipeline and communicated with the water circulation pipeline; and each core assembly comprises at least two water cooling plates which are connected series. The at least two core assemblies are connected in parallel with the water circulation pipeline, so that the complexity and the manufacturing cost of the whole thermal management system are reduced; each core assembly comprises the water cooling plates which are connected in series; and owing to the connection mode that parallel connection is performed before series connection, the flow fields and the temperature fields of the whole core assemblies are uniform, the heat exchange effect is good, and the phenomenon that the heattreatment effects are inconsistent of a battery module due to an excessively long water circulation path is avoided.

The invention relates to an unloading device, in particular to a large package unloading device for logistics. According to the large package unloading device for logistics, packages are not prone todamage, the large packages do not need to be carried by people, and the labor cost is reduced. According to the technical scheme, the large package unloading device for logistics comprises a bottom plate and the like; and the left part of the top of the bottom plate is connected with a movable plate in a hinged connection mode, a lifting device is arranged above the bottom plate, and a conveying device is arranged on the movable plate. According to the large package unloading device, the position of the movable plate is adjusted through the lifting device, moreover, the packages are conveyed through the conveying device and do not need to be carried by people, a fixing device is further arranged, so that the device is more stable, and then the effects that the packages are not prone to damage, the large packages do not need to be carried by people, and the labor cost is reduced are achieved.

The invention discloses a cable penetrating auxiliary device, and relates to the technical field of cable penetrating equipment. The auxiliary device comprises three to four pipe wall clamps, whereinconnecting rods are arranged between the pipe wall clamps; each pipe wall clamp comprises a connecting plate; a pull rod penetrates through the connecting plate, and a penetration aid is arranged at the inner end of the pull rod; the penetration aid comprises a crescent-shaped body; the inner end of the pull rod is connected to the center of the concave surface of the body, and a rolling cavity matched with the shape of the body is formed in the bottom of the body; a plurality of penetration aid rollers are arranged in the rolling cavity; an electrostatic brush is arranged at the front part ofthe body; and a powder spraying device is arranged at the rear part of the body. The auxiliary device is simple in structure and convenient to operate, and the penetration aid is arranged at the pipeline opening, so that the friction between the cable and the pipeline opening is avoided; the electrostatic brush and the powder spraying device are installed in the front and back of the penetrationaid, so that the surface of the cable is adsorbed with lubricating powder, the smoothness between the cable and the pipeline is improved, the friction coefficient is reduced, and the penetration quality and efficiency of the cable are greatly improved.

The invention discloses an electric energy meter capable of preventing electricity larceny. An outer surface of a front end of an electric energy meter main body panel is fixedly connected with an observation window, an outer surface of a front end of the observation window is fixedly connected with a self-cleaning coating, a first fixing piece and a second fixing piece are arranged on the outer surface of the upper end of the electric energy meter main body panel. The interior of the electric energy meter main body panel is fixedly connected with a heat dissipation port, the outer surface ofthe lower end of the electric energy meter main body panel is fixedly connected with a connecting wire protection box with a coded lock, and an outer surface of a front end of the connecting wire protection box with the coded lock is fixedly connected with a box door. The electric energy meter capable of preventing electricity larceny is provided with the connecting wire protection box with the coded lock, the self-cleaning coating and the anti-collision corner protectors, electricity larceny caused by private line refitting of people can be prevented, self-cleaning can be conducted, observation is convenient, the electric energy meter can be better protected, damage caused by collision is prevented, and better use prospects are brought.

The invention discloses a disc brake adopting a novel brake material for a load-carrying vehicle, and relates to the technical field of automobile brakes. The disc brake comprises a brake disc, a semicircular brake caliper, and a parking disc which is connected with an in-vehicle handbrake. The disc brake is characterized in that conical brake bodies are mounted on two end surfaces of the brake disc; an arc rack is arranged at the bottom of a work station slot; a brake block A is arranged on two end surface of the upper part of the work station slot, a hydraulic cylinder is arranged at the end corresponding to the right end of the upper part of the work station slot; a brake block B is arranged at the left end of a brake piston; the surfaces, opposite to the brake bodies, of the brake block A and the brake block B are matched with the shapes of the surfaces of the brake bodies; a sliding slot is formed in the right end of the brake caliper; the sliding slot is in sliding fit with a sliding pin nail; the sliding pin nail is fixed on a vehicle frame; a horizontal control tank is arranged on one side of the lower part of the brake caliper; and a support rod is arranged on the parking disc and is connected with the control tank in a sliding manner. The disc brake has the beneficial effects that the shape of a conventional brake disc is optimized, the brake effect is improved, the parking is relatively stable, and clearance adjustment is relatively simple.

The invention discloses a hooking-proof and anti-skidding safety floor mat, which comprises a mat body, mat edges and an anti-skidding block, wherein the mat edges are positioned on the periphery of the mat body; the anti-skidding block is fixedly arranged on the upper part of the upper surface of the mat body, and has a three-dimensional structure; the side edge of the anti-skidding block is a sloping surface; the entire shape of the upper surface of the anti-skidding block is trapezoidal; the upper surface of the anti-skidding block is provided with a plurality of groups of trapezoidal lug groups which are arranged regularly; each lug group is formed by arranging a plurality of small trapezoidal lugs of which the sizes become smaller gradually; and grooves are formed among the small trapezoid lugs. In the invention, the hooking-proof and anti-skidding safety floor mat is provided with the anti-skidding block, so that the anti-skidding effect of the upper surface of an automobile mat is enhanced, the automobile mat is more abrasion resistant, and the service life of a product is prolonged.

The invention relates to a double-rod portable video image collection box. The technical features of the double-rod portable video image collection box are as follows: the double-rod portable video image collection box comprises a box body, telescopic rods, a camera and a lighting lamp; the box body comprises an upper cover and a lower box body, the opening-and-closing connecting location of the upper cover and the lower box body is correspondingly made with a bar-shaped waterproof rib and a waterproof groove, and a sealing rubber sleeve is tightly installed on the outer surface of the waterproof rib; each telescopic rod is fixedly installed on the left and right sides of the top end surface of the box body separately, wherein the upper end of the telescopic rod is integrated with a base,and the base is separately stuck together with the corresponding camera and lighting lamp; the lower end of the telescopic rod is detachably connected to the upper end surface of the box body; the camera and the lighting lamp are electrically connected with a control circuit inside the box body separately; and the left and right end surfaces of the box body are separately made with a storage groove used for storing the supporting frame. The double-rod portable video image collection box realizes the real-time outdoor video collection and transmission functions, which is convenient for a monitoring center to obtain site video images in time when emergency and rescue.

The invention discloses a connected system of a mining vehicle engine and a gearbox. The connected system comprises an engine and a gearbox, wherein a bearing seat shell is arranged behind the engine, the engine output shaft is extended in the bearing seat shell, a driven disc assembly is arranged in the bearing seat shell, and the outside of the driven disc assembly is correspondingly provided with a clutch pressure plate assembly; the engine output shaft passes through the driven disc assembly and the clutch pressure plate assembly, gets out and extends onto the bearing seat at the outside of the bearing seat shell; the outside of the bearing seat is connected with a drive shaft 1, and a constant speed drive system is connected between the drive shaft 1 and the gearbox. The driven disc assembly, the clutch pressure plate assembly and the constant speed drive system are organically combined into one to form a connected system of the mining vehicle engine and the gearbox according to the invention; the connected system of the mining vehicle engine and the gearbox has the advantages that the structure is simple, the manufacture and maintenance are convenient, the reliability is high, and the max compaction power can reach 55,000N.m, the greater torque can be transferred, the influence of the vibration of the drive system on vehicle parts is reduced, the service life of the drive system is prolonged, and the vehicle cost is lowered to the maximum extent.

The invention discloses a ball-milling mechanical device. The ball-milling mechanical device comprises a base, a motor, a speed reducer and a box, wherein supporting legs are respectively arranged at four corners of the base; the motor is fixed on the base and is connected to one end of the speed reducer; the other end of the speed reducer is fixedly connected with one side of an upright column; the other side of the upright column is fixedly connected with the box; an air hole is formed in the top end of the upright column; a discharging plate is arranged at a position where the upright column is connected with the box and is connected with a discharging cavity; the discharging cavity is connected with a collecting cover; a material throwing hole is formed in a position where the upright column is connected with the discharging cavity; and the box is connected with a feeding opening through an air flow speed control device. The ball-milling mechanical device is simple in structure, is connected with components such as the motors through the couplings, has certain effects of damping, buffering and improving dynamic property, and is relatively high in stability; meanwhile, a water absorbing layer and a heat absorbing device are arranged in the box; the service life of equipment is prolonged; and moreover, by an air flow speed control device, speed of air flow can be controlled flexibly, and production efficiency is improved.

The invention discloses a photovoltaic panel group storage box, which comprises a storage box body and a buffer baffle, the top surface of the storage box body is open, and a top plate is installed on the opening, and buffer pads are laid on the inner bottom surface of the storage box body and the inner surface of the top plate ; The storage box body includes four inner walls, each of which is provided with a buffer baffle, and each buffer baffle is connected to the inner wall through an additional rubber buffer block. There are two rubber buffer blocks, and they are respectively located At the left and right edges of the buffer baffle; a metal buffer grid plate is arranged between the inner surface of the top plate and the buffer pad; the beneficial effect of the present invention is that the present invention can effectively protect the photovoltaic panel group, so as to achieve shock absorption, moisture resistance, A function that facilitates the placement of multiple photovoltaic panel groups.

The invention discloses a material scraping device for a cement bucket, which includes a connecting shaft. Two scrapers are arranged on the side wall of the connecting shaft. The scrapers are all parallel to the axis of the connecting shaft, and the scrapers are all trapezoidal at right angles. Its upper bottom and lower bottom are both perpendicular to the axis of the connecting shaft, its straight waistline is connected to the connecting shaft, and the scrapers are symmetrically arranged on the connecting shaft along the axis of the connecting shaft; between the two scrapers there is a A support rod, the support rod is bent into an arc shape, and its ends are respectively connected with a scraper, and the bending axis of the support rod coincides with the axis of the connecting shaft; a spring is sleeved on the support rod, and the spring is Cylindrical helical springs, the ends of which are respectively connected with a scraper, and the springs are all in a compressed state. Through the invention, not only the concrete attached to the wall of the cement bucket can be removed in time, but also the efficiency is high, and all the concrete on the wall of the bucket can be scraped off after half a circle of rotation, which reduces the time cost.

The invention discloses a cushioning shoemaking technology. The technology is characterized in that a cushion is arranged in a cavity of a shoe, wherein a plurality of convex columns and springs are arranged below the cushion; the periodic compression and expansion of the springs act on the foot of a human body to achieve cushioning walking and human body protection effects; the technology is suitable for manufacturing various shoe products.

The invention relates to an infrared thermometry system of a vacuum freeze drier. The infrared thermometry system comprises sight glass, a sight glass flange, a hot air pipe flange, an infrared thermoscope and an efficient hot air fan. The infrared thermoscope is fixedly connected to the sight glass flange through the hot air pipe flange which is connected with the efficient hot air fan, the sight glass flange is fixedly connected with the sight glass through a sight glass fixing plate, and the sight glass flange is connected with a detection opening connection plate of a freeze-dry box through a clamp with the angle adjustable. The infrared thermometry system of the vacuum freeze drier can achieve the unmanned effect of an automatic feeding and discharging system and is good in reliability and superior in performance.

The invention discloses a vibration-damping dragging type boosting glass loader capable of rotating easily. The vibration-damping dragging type boosting glass loader capable of rotating easily comprises a square supporting bottom plate, a glass loading platform arranged above the supporting bottom plate and a support connecting the supporting bottom plate and the glass loading platform. A load-bearing bottom plate which is identical to the supporting bottom plate in the shape is arranged under the supporting bottom plate. the middle portion of the supporting bottom plate is connected with the middle portion of the load-bearing bottom plate through a rotary shaft, a annular slide groove with the rotary shaft as the center is arranged on the lower surface of the supporting bottom plate, a vibration-damping part is arranged between the supporting bottom plate and the load-bearing bottom plate, one end of the vibration-damping part is fixed on the ;load-bearing bottom plate, the other end of the vibration-damping part extends into the annular slide groove to be connected with the annular slide groove in a sliding mode, a drawing head is arranged on one side of the supporting bottom plate, and a rolling component is arranged at the bottom of the load-bearing bottom plate. The vibration-damping dragging type boosting glass loader capable of rotating easily can rotate on a horizontal plane, can realize effects of vibration damping and preventing glass from being broken and damaged, is provided with the dragging head, can be dragged by a trailer, and is simple in structure, convenient and practical.

The invention relates to the technical field of machining and manufacturing of small rollers and roller sleeves, and relates to a portable small quenching device used for conducting spray quenching heat treatment outdoors or in a temporary field after the small rollers and the roller sleeves are roughly turned and formed, and a corresponding heat treatment method using the device. The quenching treatment device and the heat treatment method are complete in system, complete in function, convenient and reliable to operate, small in capital investment and quick in effect, and the problems that anexisting plant space is narrow and an existing place is endowed with multiple purposes can be solved; or the heat treatment operation is conducted in the open air and outdoors, under the condition that facilities, such as a quenching device and a quenching pool, are not fixed, all components can be combined on an irregular bottom plate, operation is achieved through a crown block or a crane withthe weight being 5 tons or above, only needed quenching liquid or gas needs to be prepared in advance, and through switching of the quenching device, the small rollers or the roller sleeves are rotated on the quenching device at a constant speed, and therefore any combined quenching mode integrating liquid, wind and air can be met, and the quenching quality of the small rollers or the roller sleeves is ensured.

The invention provides a sealed fixing structure of a vehicle leading up wire. The structure comprises a leading up wire hole arranged on a vehicle body and a leading up wire passing through the leading up wire hole. A bottom of the leading up wire hole is provided with a butyl rubber belt sealing portion. A gap between the leading up wire and an inner wall of the leading up wire hole is provided with a sealant filling portion. The invention also provides a sealed fixing method of the vehicle leading up wire. The sealed fixing structure and the sealed fixing method can be applied to automobile and rail transit fields, such as the vehicle leading up wires of a subway, a high speed rail, a haulage motor and the like; and purposes of waterproof performance, dustproof performance, flame retardation, sound insulation, noise reduction, damping and the like are achieved, and later maintenance is simple. Used materials are environment-friendly type products, construction is simple, an appearance is beautiful, and a wide application prospect and an economic value are possessed in the automobile and rail transit field.

The invention provides a quick mounting and fixing system for pipeline. A sunken lock suspension member having a fixing rod is fastened to a fastener on a member having a hook groove, the sunken lock suspension member having the fixing rod are composed of locking hooks at two ends and a middle sunken connecting bridge, the locking hooks can cooperate with locking stations in the member having the hook groove to prevent the sunken lock suspension member having the fixing rod from rotating. A movable connecting member comprises a connecting portion connected with a pipe hoop, a connecting portion movably connected with a connecting end of the fixing rod, and a fixing rod cavity through which the connecting length of the fixing rod can be adjusted, and the connection portion connected with the pipe hoop can rotate relative to the pipe hoop. According to the quick mounting and fixing system for pipeline, a connecting structure is divided into an anti-rotation locking portion and an adjustment movable portion, and the adjustment movable portion can work like a joint, the adjustment movable portion can be adjusted during assembly and can be prevented from rotating by a pipe after assembly, the height of the pipe hoop can be freely adjusted, a whole pipeline can be conveniently, accurately and firmly mounted.

The invention provides a bushing, an automobile steering knuckle and an automobile. The bushing is used for being press mounted in a bushing hole of the automobile steering knuckle. The bushing comprises a columnar body, an inserting end used for inserting towards the bushing hole is arranged on the columnar body in the radial direction, and the end part facing the bushing hole of the inserting end is of a fillet structure. According to the bushing, because the end part facing the bushing hole of the inserting end is of the fillet structure, the inserting end is round and smooth and is not sharp-pointed any more, aluminum scraps are not likely to be scrapped out of a steering knuckle body, after the bushing is press mounted in the bushing hole of the steering knuckle, press-out force of the bushing is increased, the bushing is not likely to be pressed out from the bushing hole of the steering knuckle, the steering knuckle with the bushing assembled conforms to the design requirement, the product qualification ration is increased, and the bushing is capable of playing better shock absorbing, buffering, strength increasing and locating roles in the steering knuckle.

The invention relates to a potting method applied to electronic equipment for dairy cows, which comprises the following step: S1, preparation of soft glue: putting black fluid potting silica gel and white fluid silica gel curing agent into a container according to the mass ratio of 1:1 for full mixing, fully stirring the mixture clockwise for 10-15 minutes with a stirrer, and after the two components are fully mixed, allowing the mixture to stand for 30 minutes at room temperature to form mixed fluid like soft glue. The potting method has the advantages as follows: effective waterproof and dustproof effects can be achieved; by using electronic devices potted by the process, the interference to the wireless signals of electronic equipment can be greatly reduced; the corrosion degree of thecolloid to the electronic devices and the corrosion degree of the external acid-base liquid to the equipment can be minimized; and insulation, sealing, shock absorption and atmospheric aging resistance effects can be achieved to a great extent.

The invention discloses a plastic cement floorboard installing structure, which comprises plastic cement floorboards and a soft rubber pad, wherein the soft rubber pad is laid on the ground; the upper surface of the soft rubber pad is fixedly provided with a plurality of plastic cement floorboards which are spliced together. The invention also discloses an installing method of the floorboards. The method comprises the following steps of a, laying the soft rubber pad on the ground; b, laying the plastic cement floorboards one by one on the upper surface of the soft rubber pad, splicing the plastic cement floorboards together and fixing the plastic cement floorboards onto the soft rubber pad. In the plastic cement floorboard installing structure, the soft rubber pad has the function of connecting the floorboards; meanwhile, the effects of sound isolation, vibration reduction, anti-slip function, damp-proof function, stain prevention and sand and dust prevention are also achieved; the requirements of the plastic cement floorboards on the ground surface condition are reduced; the requirements on the floorboard laying experience and the technology are reduced; in addition, during the decoration in the next time, the recovery is convenient; the ground cannot be damaged; the floorboard can be conveniently replaced; meanwhile, the floorboards are laid on the soft rubber pad and form a whole, so that the local floorboard contraction cracks or expansion arching phenomenon due to environment temperature and humidity change cannot occur.

The invention provides an elastic coupler which comprises an output end half coupler, an elastic gasket, a nylon pin, a metal pin sleeve, an internal hexagonal screw plug, an input end half coupler, a right part, a left part and a screw plug. The elastic coupler is characterized in that pin holes are arranged in corresponding contact faces of the output end half coupler and the input end half coupler; the left part is arranged at the lower portion of the output end half coupler, and the right part is arranged at the lower portion of the input end half coupler; the nylon pin is arranged inside the pin holes, and the metal pin sleeve is arranged outside the nylon pin. The elastic coupler is simple in structure and easy to assemble and disassemble; due to the fact that the metal pin sleeve is additionally arranged outside the nylon pin, shearing force is converted into pressure stress, the torque transmitted by the elastic coupler is increased, and the service life of the nylon pin is prolonged; axial movement of the nylon pin and the metal pin sleeve inside the pin holes is limited through the inner hexagonal screw plug, and vibration and noise are lowered; the left part is arranged at the lower portion of the output end half coupler, and the right part is arranged at the lower portion of the input end half coupler, so that both the left part and the right part achieve the damping, sound insulation and dustproof effects.

The present invention discloses an electromagnetic shielding cabinet with a shockproof function. The cabinet comprises a cabinet main body, a heat dissipation mechanism, a cooling mechanism and a box door, the cabinet main body comprises an outer shell, an electromagnetic shielding layer and an inner shell, a base is installed at the bottom of the outer shell, and an electric telescopic rod is installed in a groove. A plurality of clamping blocks are symmetrically installed on the left side and the right side of the inner wall of the inner shell, the heat dissipation mechanism is installed on the left side of the bottom of the interior of the inner shell, the cooling mechanism is installed on the right side of the bottom of the interior of the inner shell, and sealing strips are arranged at the positions, close to the edges, of the periphery of the inner side of the box door. The electromagnetic shielding cabinet with the shockproof function is provided with the heat dissipation mechanism and the cooling mechanism, and through the arrangement of the motor, the fan blades, the through holes, the air holes, the water inlet pipe, the water pipe, the water pump, the water outlet pipe and the one-way valve, the device can carry out effective heat dissipation and cooling treatment on the electromagnetic shielding cabinet, the heat dissipation efficiency of the electromagnetic shielding cabinet is improved, electrical components in the electromagnetic shielding cabinet are protected, and the service life of the electromagnetic shielding cabinet is prolonged.

The invention relates to a tire, belongs to the technical field of automobile tires, and in particular to a compound type blowout-proof tire. The blowout-proof tire comprises a wheel hub and a tire body, the tire body is arranged on the wheel hub, and the tire body comprises an inner tube-free radial tire and a blowout-proof auxiliary tube, wherein the radial tire is in the outer layer, the auxiliary tube is arranged in the inner chamber of the radial tire and fixed on the wheel hub through air inflation. The auxiliary tube comprises a ring gasket, an air inflation inner tube and a ring strengthening wheel arch trim, wherein the ring gasket is clung to the inner wall of the wheel hub, the ring strengthening wheel arch trim wraps the periphery of the air inflation inner tube; the auxiliary tube has no contact with the inner wall of the radial tire, the size of the space between the auxiliary tire and the radial tire enables the outer tire and the inner tube do not contact with each other under a normal driving condition. The blowout-proof tire provided by the invention has the advantages that 1, the sudden bearing capability of the tire can be strengthened to prevent the tire from blowout; 2, a vehicle can be enabled to keep running relatively smoothly even if the outer tire blows out or releases pressure; 3, the blowout-proof tire is easy to install, and convenient to popularize.

The invention relates to an upright post structure for operation of a fully slewing drilling machine. The upright post structure for the operation of the fully slewing drilling machine comprises a guide post and a sliding upright post arranged outside the guide post. The upright post structure for the operation of the fully slewing drilling machine also comprises a first nylon sleeve arranged between the guide post and the sliding upright post. In the working process, the first nylon sleeve achieves the protective effects of damping, reducing friction and the like, is convenient to process and manufacture, and is low in cost.

The invention relates to a single-rod portable video image collection box. The single-rod portable video image collection box is technically characterized by comprising a box body, a telescopic rod and a camera. A telescopic pull rod is set on the top end face of the box body. Left and right universal wheels are symmetrically set at the bottom of the box body. A base is integrally set at the upperend of the telescopic rod. The base and the camera are clamped together. The lower end of the telescopic rod is detachably connected with one side of the upper end face of the box body. An umbrella-shaped rainproof cover is fixedly mounted at the upper part of the telescopic rod. The umbrella-shaped rainproof cover can be folded upward or downward along the telescopic rod. An annular slot for storing rainproof plastic film is set on the telescopic rod below the umbrella-shaped rainproof cover. The camera is electrically connected with a control circuit in the box body. According to the single-rod portable video image collection box, real-time outdoor video collection and transmission functions are realized, and a monitoring center can obtain site video image data conveniently and timely when emergency rescue is carried out.