53results about How to "Job security" patented technology

The utility model discloses a frequency converter anti-interference device, which comprises a frequency converter and a box body, an anti-interference assembly is arranged on the box body, the anti-interference assembly comprises a metal net and a filter, a heat dissipation assembly is arranged at the top of the box body, the heat dissipation assembly comprises an air duct and a fan, a filter assembly is arranged at the bottom of the box body, and the filter assembly is arranged in the box body. The filter assembly comprises an inlet and a filter screen, a waterproof assembly is installed on the inner side of the inlet, and the waterproof assembly comprises a clamping plate and water-absorbent resin. The frequency converter anti-interference device can effectively conduct ventilation and heat dissipation work on a frequency converter, reduce the working temperature of the frequency converter and guarantee the working safety of the frequency converter; and when the scraper blade cannot completely clean dust on the filter screen, the filter screen is pushed by wind pressure, so that the filter screen compresses the spring and extrudes the button, and the button turns on the warning lamp to prompt personnel that the filter screen is blocked, and the anti-interference transmitter is suitable for improving the anti-interference performance of the transmitter.

The utility model provides a cloth bag type dust collector for wood processing, which relates to the technical field of wood processing and comprises a dust collection box, a first sliding groove is arranged at the top end of the inner surface wall of the dust collection box, a filter plate is slidably connected in the first sliding groove, and a second sliding groove is arranged at the bottom end of the inner surface wall of the dust collection box. A sliding plate is slidably connected into the second sliding groove, a dust collection bag is fixedly connected to the outer surface wall of the sliding plate, a second handle is fixedly connected to the outer surface wall of the sliding plate, a first handle is fixedly connected to the outer surface wall of the filter plate, and a dust collection hopper is fixedly connected to the bottom of the dust removal box; under the cooperation of a first sliding groove, a filter plate, a second sliding groove, a sliding plate, a dust collection bag, a first handle and a second handle, when the dust collection bag and the filter plate need to be replaced and cleaned, the dust collection bag and the filter plate can be conveniently taken out, the filter plate can effectively block wood chips, the influence of the wood chips on the dust collection bag is avoided, and the working safety of the dust collection bag is guaranteed; the working efficiency is improved.

The utility model discloses a light leakage prevention backlight source module which comprises a bottom plate and a frame, a light emitting assembly is installed on the inner side of the frame, the light emitting assembly comprises a circuit board and an LED lamp, a light leakage prevention assembly is installed on the inner side of the frame and comprises a light guide plate and a reflective mirror, an air inlet assembly is installed on one side of the frame, and an air outlet assembly is installed on the other side of the frame. According to the light leakage prevention backlight source module, the periphery of the LED lamp and the periphery of the frame can be sealed through the reflective mirror, light leakage is avoided, meanwhile, light is reflected to the light guide plate, the light transmission rate is increased, the light leakage prevention effect is good, and the light leakage prevention backlight source module is suitable for being used for a large-scale production line. The brightness consistency of the backlight source is guaranteed through the reflective mirror and the light guide plate, the illumination efficiency is further improved, the illumination area can be adjusted according to the illumination range, the adaptability of the backlight source is improved, and the backlight source is suitable for illumination of advertising boards, product display and the like.

The utility model provides an efficient dust-proof device for mining, which relates to the technical field of dust-proof devices and comprises a box body, two groups of second sliding grooves are arranged on one side inside the box body, sliding blocks are connected inside the two groups of second sliding grooves in a sliding mode, the tops of the sliding blocks are fixedly connected with a dust storage box, and a first sliding groove is arranged on the top of the dust storage box. Through cooperation of a dust storage box, a dust suction pump, the communicating hole, a second connecting pipe, a dust suction head, a water pump, a third connecting pipe, a first connecting pipe, a spraying plate and a water storage box, during mining operation, dust generated during operation can be effectively removed, the working safety of workers is guaranteed, and the working efficiency is improved; and under the action of the dustproof heat dissipation plate, heat generated when the dust collection pump works can be dissipated, the dust collection pump is prevented from being influenced by the heat, the working safety of the dust collection pump is guaranteed, and the working efficiency is improved.

The utility model provides a cooling device of a refrigeration compressor, which relates to the technical field of refrigeration equipment and comprises a compressor main body, a condenser pipe arranged on one side of the outer surface wall of the compressor main body, a protective cover arranged at the top of the condenser pipe, a water storage tank fixedly connected to the top of the protective cover, and a circulating pump arranged inside the water storage tank. The outer surface wall of the circulating pump communicates with a connecting pipe, the circulating pump communicates with the condensation pipe, heat dissipation holes are formed in the outer surface wall of the compressor body, and through cooperation of the refrigerator, the water storage tank, the circulating pump, the connecting pipe and the condensation pipe, after the compressor body works to generate heat, the interior of the compressor body can be cooled conveniently; the compressor main body is prevented from being influenced by heat, the working safety of the compressor main body is guaranteed, the working efficiency is improved, under the cooperation of the fixing block, the first threaded hole, the second threaded hole, the connecting piece, the first bolt and the second bolt, when the refrigerator breaks down, the refrigerator can be conveniently replaced and maintained, and the working efficiency is improved.

The utility model discloses an anti-rotation petroleum valve, which belongs to the technical field of valves, and has the technical key points that the anti-rotation petroleum valve comprises a valve body, the valve body comprises a valve body, a valve cover, a valve seat, a valve plate and a valve rod, the top of the valve body is fixedly connected with a shell, the valve rod penetrates through the shell, the top of the shell is provided with a groove, and the valve cover is arranged in the groove. According to the valve, due to the fact that the inserting groove and the inserting block are arranged, the problem of valve autorotation caused by valve design or external factors is effectively solved, the stability of valve operation is remarkably improved, and the valve is convenient to use. And the telescopic rod and the limiting block are arranged, the amplification effect of the lever principle is utilized, large enough force is easily transmitted, the valve can be successfully started, and therefore the physical strength of workers is greatly saved.

The utility model discloses a sliding type rain-proof shed for hanging basket construction. The sliding type rain-proof shed comprises a supporting system, a shielding ceiling and an automatic control sliding system. The supporting system is composed of two sets of supporting frameworks arranged in parallel, and each set of supporting frameworks is composed of a structural frame composed of two right triangles. The two right triangles have a common right-angle side which is vertically arranged; a right triangle structure frame is arranged on a hanging basket construction poured beam section, the right-angle side is transversely arranged on the poured beam section, and an automatic control sliding system is arranged at the bottom of the right triangle structure frame. The other right triangle structure frame is arranged above the outer hanging basket of the poured beam section in a suspended mode, and the right-angle side is transversely arranged above the hanging basket and covers and shields the ceiling. And the self-control sliding system is composed of at least two groups of driving rollers at the bottom of each group of supporting frameworks. The rain-proof shed adopts a combined triangular structure frame, is stable and reliable in structure, is arranged on a poured beam section in hanging basket construction, and can automatically move integrally along with a hanging basket through a self-control pulley system, so that the construction is more convenient and safer.

The utility model discloses a low bath ratio high temperature high pressure dyeing machine relates to dyeing machine technical field, the utility model discloses a dyeing cylinder body and set up at the bottom end of dyeing cylinder body's chassis and set up between the both sides of dyeing cylinder body top cloth guide pipe still include: heat shield, set up at the outside of dyeing cylinder body, the utility model discloses through heat shield blocks the heat and spreads outward through cylinder body outer wall, avoids a large amount of heat energy waste, and still can avoid workshop temperature rise, guarantees the work efficiency and safety of staff, and in through heat exchange coil absorbs the heat that cylinder spreads outward and is blocked by heat shield, through heat conduction filler can ensure that heat shield and dyeing cylinder body between heat distribution is even, avoids the position temperature difference of being close to and being far from heat exchange coil too big influence structural strength to further safe and effective utilization dyeing machine work when the heat that cylinder loses, improves energy utilization, makes equipment run more environmental protection.

The utility model relates to the field of living beef cattle egg collection, and discloses a living cattle egg collection fixing frame which comprises a top frame and a bottom frame which are arranged in parallel, the top frame and the bottom frame are both of a hollow structure, a plurality of side pipes are fixedly connected to the two sides of the bottom end of the top frame and the two sides of the top end of the bottom frame respectively, and rotating rods are rotationally installed on the front sides of the top frame and the bottom frame respectively. The top ends and the bottom ends of the sides, close to each other, of the two rotating rods are fixedly connected with transverse rods correspondingly, a plurality of vertical pipes are arranged between the two transverse rods arranged in parallel in the vertical direction in parallel, a plurality of mounting bases are fixedly connected to the top end of one side of the top frame, and one side of each mounting base is rotationally connected with a connecting bent arm through a rotating shaft. Inclined plug pins distributed in the vertical direction are fixedly installed at the positions, close to the centers of the two rotating rods, of the connecting bent arms, plug bushes matched with the inclined plug pins in an inserted mode are fixedly installed on the outer side and the inner side of the top frame correspondingly, and adjusting assemblies are movably installed on the inner sides of the ends, close to each other, of the top frame and the bottom frame. By means of the structure, the cattle can be conveniently fixed in the process of collecting the eggs of the living cattle.

This utility model discloses a uniform and energy-saving baking device for lithium battery cells, including a heating component. The heating component includes a right working chamber, and a rotating component is arranged above the working chamber. The rotating component includes a rotating shaft, a second motor is fixedly connected to the top of the rotating shaft, and a placement plate is fixedly connected to the side surface of the rotating shaft. The top side surface of the rotating shaft is rotatably connected to the inner wall of the top cavity. This utility model relates to the technical field of lithium battery production equipment. This uniform and energy-saving baking device for lithium battery cells avoids the lithium battery cells directly contacting the inner wall of the oven during baking, thus preventing local overheating and damage to the lithium battery cells. It allows heat to be transferred more evenly to all parts of the lithium battery cells indirectly through the air around the lithium battery cells, achieving the beneficial effects of more uniform heating of the lithium battery cells and protecting the condition of the lithium battery cells.

The utility model discloses a sodium hyaluronate gel detection box, which comprises a detection box main body, the top of the detection box main body is provided with a sealing cover assembly, the sealing cover assembly comprises a lower cover and an upper cover, the inner side of the detection box main body is provided with an isolation assembly, the isolation assembly comprises a partition plate and a sealing plate, the lower cover is provided with an observation assembly, and the lower cover is provided with a sealing plate. The observation assembly comprises a colorimetric card and a magnifying lens, the lower cover is provided with a medicine adding assembly, the medicine adding assembly comprises a material box and a valve, the sodium hyaluronate gel detection box can perform disinfection and sterilization work on the detection box main body, the interior of the detection box main body is prevented from being polluted by bacteria, the reliability of a detection result of sodium hyaluronate gel is guaranteed, and the detection accuracy is improved. And if the lower cover and the upper cover are not completely closed or are opened by mistake, the ultraviolet lamp is turned off, so that ultraviolet rays are prevented from being emitted outwards, the injury of the ultraviolet rays to personnel is avoided, the working safety of the personnel is effectively guaranteed, and the sodium hyaluronate gel detection device is suitable for detection of sodium hyaluronate gel.

The utility model discloses a direct current charger convenient for heat dissipation, comprising a housing and a direct current charging circuit, the bottom of the housing is provided with a power connection assembly, the power connection assembly comprises a plug and a charging head, one side of the housing is provided with an air inlet assembly, the air inlet assembly comprises an air port and a filter screen, and the air inlet assembly is provided with an air outlet. The other side of the shell is provided with an air outlet assembly, the air outlet assembly comprises an air duct and a fan, the inner side of the air port is provided with a water blocking assembly, and the water blocking assembly comprises a fixed plate and absorbent cotton. According to the direct current charger convenient to dissipate heat, the shell can be sealed in rainy or foggy weather, water is prevented from entering the inner side of a clamping sleeve, and the heat dissipation efficiency is improved. Meanwhile, heat dissipation work is carried out through the cooling fins, energy consumption needed by work of the draught fan is reduced, the phenomenon that the temperature of the direct current charging circuit is too high is avoided, the service life and work safety of the charger are guaranteed, and the charger is suitable for direct current charging of electrical equipment.

The utility model provides a pneumatic actuator buffer structure, which relates to the technical field of pneumatic actuators and comprises a shell, two air inlets and outlets on the outer surface wall of the shell, valves arranged in the two air inlets and outlets, a connecting rod fixedly connected to the top of each valve, a motor fixedly connected to the top of each connecting rod, and a connecting plate fixedly connected to the bottom of each motor. A controller is arranged on the outer surface wall of the shell, through cooperation of the gas sensor, the connecting circuit, the data collector, the controller, the gas inlet and outlet, the valve, the connecting rod, the motor and the connecting plate, the gas flow speed of the gas inlet and outlet can be controlled, and the situation that the normal work of the pneumatic actuator is affected due to the too high gas inlet speed is avoided. And under the cooperation of a buffer spring, a buffer damper and a rubber pad, the buffer spring and the buffer damper can be protected when the pneumatic actuator works, so that the working safety of the pneumatic actuator is guaranteed, and the working efficiency is improved.

The utility model discloses petroleum transportation pipeline installation equipment which comprises a main body, the main body comprises two triangular supports, the two triangular supports are used in a matched mode, supporting plates are fixedly connected to the interiors of the main body, moving blocks are fixedly connected to the tops of the supporting plates, and the stability of the installation equipment is improved; the accommodating groove is used for carrying out displacement work on the auxiliary mounting equipment; the main body, the supporting plate, the moving block, the first electric telescopic rod, the supporting shaft, the sliding groove and the connecting block are matched for use, so that the device can adopt a triangular form as the main body, the idea that the triangle has stability is utilized, meanwhile, the support form is adopted, the gravity center in a petroleum transportation pipeline is kept stable, and the petroleum transportation pipeline is convenient to use. The stability of the device is improved, the workload of workers is relieved, the working safety of the workers is guaranteed, meanwhile, the device can conduct multi-range adjustment work, the height and the angle can be adjusted at the same time, and the practicability of the device is improved.

The utility model discloses a transformer trunking structure which comprises a transformer iron core and a coil, a transformer trunking assembly is installed on the top of the transformer iron core and comprises an outer partition plate and an inner partition plate, a limiting assembly is installed on the inner partition plate, the limiting assembly comprises a sliding groove and a guide rod, and the outer partition plate and the inner partition plate are connected through the sliding groove. A locking assembly is installed on the outer partition plate, the locking assembly comprises a guide pin and a second elastic piece, a heat dissipation assembly is installed on the outer side of the transformer iron core, and the heat dissipation assembly comprises a first elastic piece and silicone grease. The inner partition plate and the outer partition plate are used for increasing the heat dissipation area, the heat dissipation efficiency of the coil is effectively improved, the working temperature of the coil is reduced, the working safety of the coil is guaranteed, the service life of the transformer is further guaranteed, and the transformer coil fixing device is suitable for being used for installing and fixing the transformer coil.

The invention relates to the field of cloth lamination, in particular to a polypropylene cushion fabric lamination device. The technical problems that an existing device is tedious in alignment step, sweat or grease corrodes a laminated steel plate in the alignment process, and excessive glue after lamination reduces the quality of polypropylene cushion fabric are solved. According to the technical scheme, the cleaning device comprises a base and further comprises a lower pressing frame and a cleaning unit, the lower pressing frame is placed on the top of the base, the cleaning unit is installed on the base and comprises first positioning frames, and the first positioning frames are symmetrically distributed and fixedly connected to the base. The cleaning device has the beneficial effects that the friction ring is matched with the second positioning frame, so that the cleaning roller can be always attached to the top-layer laminated steel plate, dust, sweat and grease on the top-layer laminated steel plate are removed, interference of dust to lamination and corrosion of sweat and grease to the top-layer laminated steel plate are prevented, and the service life of the top-layer laminated steel plate is prolonged. The laminating effect of the polypropylene cushion fabric is improved, and the service life of the top laminated steel plate is prolonged.

The utility model relates to the technical field of textile processing, and provides a bundling tool which comprises a clamping assembly, and the clamping assembly is provided with a clamping gap used for clamping a plurality of tows. The two ends of the clamping assembly are respectively an open end for each tow to enter the clamping gap and a closed end for preventing the tows in the clamping gap from being separated from the clamping assembly. The bundling device has the beneficial effect of reducing the bundling time.

The utility model discloses a bridge welding steel structure supporting device, which belongs to the technical field of supporting devices, and comprises a bottom plate, a groove is formed in the top of the bottom plate, a bearing is fixedly connected to the side surface of the inner wall of the groove, a rotating shaft is rotatably connected to the inside of the bearing, one end of the rotating shaft is fixedly connected with a screw rod, and the other end of the rotating shaft is fixedly connected with a screw rod. A shell is fixedly connected to the side face of the bottom plate, a motor is fixedly connected to the interior of the shell, and the motor works to drive a rotating shaft to rotate so as to drive a lead screw to rotate, so that a sliding plate moves left and right, an electric push rod moves left and right, and a top plate moves left and right; and the distance between the top plates is adjusted, the top plates move up and down through work of the electric push rods, then the top plates make contact with the surface of the steel structure, the steel structure moves up and down, and then the height of the steel structure is adjusted.

The invention belongs to the technical field of winches, and particularly discloses a laying winch with a tension compensation function, which comprises a winch body, the winch body comprises a base, a winch frame, a winding drum, a cable, a tension compensation mechanism and a tension detection mechanism, the winch frame is slidably arranged on the base, the winding drum is arranged on the winch frame, one end of the cable is wound on the winding drum, and the other end of the cable is wound on the tension compensation mechanism. And the other end extends out of the winding drum and is connected with external bearing equipment through the tension compensation mechanism and the tension detection mechanism in sequence. The tension of the cable in the cable unwinding or winding process is detected through the tension detection mechanism, the situation that the tension of the cable is insufficient or too high is found in time, the safety of the working process of the winch is ensured, and tension adjustment is automatically achieved through the tension compensation mechanism according to the tension requirement of the cable; the problem that the rope arrangement effect is poor due to the fact that an existing cable is likely to be loosened or too large is solved, the service life of the cable is prolonged, the safety of the cable is improved, and the stability and safety of the winch in the using process are guaranteed.

The utility model provides a protective device for coal mine operation. The protective device comprises a plurality of supporting assemblies, a protective net and a fixing device. Each supporting assembly comprises a left side part, a connecting rod and a right side part; the two sides of the connecting rod are in threaded connection with the left side part and the right side part respectively, and the right side part and the left side part are symmetrical about the central axis of the connecting rod; the surface of the protective net is hollowed out and forms a plurality of mounting nodes; one end of the fixing device is arranged on the mounting node, and the other end of the fixing device is arranged on the mounting node; when maintenance operation is carried out, the at least two sets of supporting assemblies abut against the wall of the mine field, and therefore a protective layer is formed between the material opening and the maintenance position. The framework structure for supporting the protective net is jointly formed by the multiple sets of supporting assemblies, in the overhauling process, the two ends of each supporting assembly abut against the wall of the mine field, so that the protective net is unfolded above the overhauling position, and the working safety of overhauling personnel is guaranteed.

The utility model discloses a bridge concrete bearing capacity testing device which comprises a base and a top plate, a pressing assembly is installed on the top plate, the pressing assembly comprises a screw rod and a rotating plate, a reading assembly is installed on the top plate and comprises a magnifying lens and scale marks, a fixing assembly is installed at the bottom end of the screw rod, and the magnifying lens is installed on the fixing assembly. The fixing assembly comprises a clamping sleeve and a first spring, an extrusion assembly is installed at the bottom of the clamping sleeve and comprises a pressing plate and a guide rod, the bridge concrete bearing capacity testing device can limit and protect a broken bridge concrete block, broken blocks of the bridge concrete block are prevented from splashing outwards, and then the working safety of personnel is guaranteed; when the bridge concrete block slightly deforms, the deformation amount is amplified, so that personnel can accurately know the actual maximum bearing strength of the bridge concrete block, the accuracy and reliability of a test result are guaranteed, and the bridge concrete bearing capacity testing device is suitable for testing the bearing capacity of bridge concrete.

The utility model discloses a signboard processing baking device which comprises a support and supporting legs, the top of the support is provided with a protection assembly, the protection assembly comprises a box cover and an air duct, the inner side of the support is provided with a rotating assembly, the rotating assembly comprises a first motor and a rotating roller, the rotating roller is provided with a conveying assembly, and the conveying assembly is connected with the supporting legs. The conveying assembly comprises a conveying belt and a supporting plate, the supporting plate is provided with a heat insulation assembly, and the heat insulation assembly comprises a first heat insulation plate and a second heat insulation plate. The signboard processing and baking device can conduct continuous baking operation on signboards, the working efficiency is improved, the signboards can be conveniently and rapidly cooled, the cooling time is shortened, and the working efficiency is improved. Meanwhile, heat is recycled, energy consumption is reduced, heat insulation work is conducted on the conveying belt through the first heat insulation plates and the second heat insulation plates on the two sides of the supporting plate, the situation that the temperature of the conveying belt is too high is effectively avoided, work safety of the conveying belt is guaranteed, and the signboard machining device is suitable for signboard machining.

The invention relates to the technical field of image detection, in particular to a concrete surface crack detection method, device and equipment, and the method comprises the steps: obtaining the image data of a concrete surface; performing data preprocessing on the acquired concrete surface image data; after data preprocessing is completed, concrete surface image data are input into a convolutional neural network model based on a self-attention mechanism, and a concrete surface crack detection result is obtained and marked at a corresponding position in the image; detecting results are classified and evaluated through a classifier; and displaying classification and evaluation results through a user interface, and providing a crack analysis report. The concrete surface crack detection method adopts an image processing technology and an artificial intelligence technology to detect the cracks on the concrete surface, realizes automatic, high-efficiency and accurate concrete surface crack detection, does not need a large amount of manpower and material resources, and effectively solves the problems of high cost and low efficiency of a traditional concrete surface crack detection method.

The utility model discloses an adjustable compensation reactor which comprises an adjustable compensation reactor body, a fixing assembly is installed on the adjustable compensation reactor body, the fixing assembly comprises a top box and a base, a purification assembly is installed on the inner side of the base, the purification assembly comprises a second filter screen and a second drying plate, and the second filter screen is installed on the top box. A heat dissipation assembly is installed on the inner side of the base and comprises an air duct and a draught fan, a detection assembly is installed on the air duct and comprises a sleeve and a piston, the adjustable compensation reactor can guarantee heat dissipation uniformity of the adjustable compensation reactor, damage caused by too high temperature due to uneven heat dissipation is avoided, the service life of the adjustable compensation reactor is prolonged, and the service life of the adjustable compensation reactor is prolonged. According to the adjustable compensation reactor, the working safety of the adjustable compensation reactor is guaranteed, the first filter screen and the second filter screen are automatically cleaned, the first drying plate and the second drying plate are dried, then the heat dissipation wind speed is guaranteed, the heat dissipation safety of the adjustable compensation reactor is guaranteed, and the adjustable compensation reactor is suitable for reactance compensation work of a circuit.

The utility model discloses a tunnel inspection rescue device, which belongs to the technical field of tunnel inspection rescue, aims to solve the problems of poor inspection rescue effect in a tunnel and unstable movement of an inspection device, and comprises a rescue device body and a track, the track is arranged on one side of the rescue device body, and a mounting plate is fixed on the side wall of one side of the rescue device body. A moving assembly matched with the track is arranged on one side of the mounting plate, and two symmetrically-distributed loudspeakers are arranged on the side wall of one side of the rescue device body; according to the utility model, through the arrangement of the distance adjusting assembly, the position of the camera collector can be adjusted when the rescue device body is in a static state, so that the effect of collecting pictures of an accident scene can be greatly improved, and personnel in a rescue center can completely check the condition of the accident scene in real time; therefore, the personnel in the rescue center can make feedback in time, and the rescue efficiency of the trapped personnel is improved.

The utility model discloses an automobile damping steel plate spring which comprises a steel plate spring and a fixing frame, the steel plate spring is provided with a fixing assembly, the fixing assembly comprises a supporting plate and a U-shaped screw, the U-shaped screw is provided with a fastening assembly, the fastening assembly comprises a clamping plate and a nut, the clamping plate is provided with an adjusting assembly, and the adjusting assembly is connected with the nut. The adjusting assembly comprises a screw rod and a screw sleeve, a locking assembly is installed at the bottom of the clamping plate, the locking assembly comprises a wedge block and a spring, the automobile damping steel plate spring can adapt to installation and fixing use of fixing frames of different sizes, then the automobile damping steel plate spring can be installed and used on different automobiles, and the applicability of equipment is improved; and reverse rotation of the rotating plate is avoided, so that the nut is effectively prevented from loosening, the mounting firmness of the steel plate spring and the supporting frame is effectively guaranteed, loosening is prevented, the working safety of the steel plate spring is effectively guaranteed, and the damping device is suitable for damping operation of automobiles.

The utility model provides a turn-over tool for a steel box girder, which relates to the technical field of turn-over of the steel box girder and comprises a base, a sliding groove is arranged at the top of the base, a first threaded rod is arranged in the sliding groove, and the turn-over tool is connected with the first threaded rod through the sliding groove, the first threaded rod, a limiting block, a second threaded rod, a first motor, a second motor and a connecting piece under the action of the threaded groove and the sliding block. The bottom of the connecting piece can automatically slide to the bottom of the steel box girder when the steel box girder is hoisted and placed on the top of the base, subsequent jacking operation on the steel box girder is facilitated, cooperation of a crane is not needed, and the safety of overall operation is improved; the steel box girder can be pushed when the steel box girder is jacked up, the devices on the left side and the right side are matched with each other, the steel box girder is pushed to be in a vertical state and supported, and after repeated operation is conducted, the steel box girder can topple towards the right side.

The utility model discloses a graphite heat exchanger tooling platform, which comprises a framework, a plurality of supporting legs and a plurality of connecting rods, the framework is provided with at least one bearing surface and is provided with a working table surface through the bearing surface; the middle of the working table top is open, and guardrails are arranged on the working table top in the circumferential direction. The climbing assembly is arranged at the opening of the guardrail, the graphite heater can be directly disassembled on the working sleeve face after being lifted out of the transmission side, and the overhauling process of the graphite heat exchanger is simplified. The framework adopts H-shaped steel to be welded to form the graphite heat exchanger tool platform, the graphite heat exchanger tool platform has good structural strength and stability, stable supporting of the platform is guaranteed through the arranged supporting legs, and work safety is guaranteed. The middle of the working table top is open, so that workpieces needing to be used can be conveniently conveyed to the working table top from the position below the working table top.

A fully automatic monitoring celadon kiln comprises a furnace frame and a furnace body, wherein the furnace body is fixedly mounted on the inner side of the furnace frame, a firing chamber is arranged on the inner side of the furnace body, support parts are arranged on the left and right sides of the lower end of the furnace body, a placement part is arranged on the upper end of the support part, evenly arranged combustion tubes are arranged on the upper end of the placement part, one end of a ventilation pipe is arranged on the inner side of the lower end of the combustion tube, a mixing tube is sealedly connected to the other end of the ventilation pipe, an oxygen pipe is arranged at the front end of the mixing tube, a fuel pipe is arranged at the rear end of the mixing tube, a dividing strip is arranged on the upper end of the placement part, a guide rail is arranged at the bottom of the furnace body, a kiln car is arranged on the upper end of the guide rail, a rotating shaft is arranged on the right side of the front end of the furnace frame, fixing parts are arranged on the outer sides of the upper and lower ends of the rotating shaft, a sealing door is arranged at the front end of the furnace body, and the right end of the sealing door is rotatably connected to the outer side of the rotating shaft through a hinge.

The utility model discloses a coupling coaxial cable, comprising a coupling coaxial cable main body, two ends of the coupling coaxial cable main body are provided with connecting assemblies, each connecting assembly comprises a joint and a connecting sleeve, the joint is provided with a limiting assembly, the limiting assembly comprises an outer sleeve and a baffle ring, the outer side of the connecting sleeve is provided with a rotating assembly, and the rotating assembly is connected with the connecting sleeve. The rotating assembly comprises a clamping sleeve and a clamping ring, an anti-loosening assembly is welded to the outer side of the clamping sleeve, the anti-loosening assembly comprises a clamping plate and a wedge block, the coupling coaxial cable can fix the wedge block through a wedge groove, then the clamping sleeve is fixed through the clamping plate, the clamping sleeve is prevented from loosening, and the connection firmness of the connector and the connecting sleeve is guaranteed; poor connection or disconnection of the coupling coaxial cable body is avoided, water is prevented from entering the inner sides of the connector and the connecting sleeve, connection sealing performance of the coupling coaxial cable is guaranteed, electric leakage and other conditions are avoided, working safety of the coupling coaxial cable is guaranteed, and the coupling coaxial cable is suitable for transmission of wireless communication signals.