212results about How to "Quick break" patented technology

The utility model discloses a chemical mechanical polishing and planarization system, which at least comprises a polishing head. A plurality of air holes are formed in the lower surface of the hard disc, and a third air cavity communicated with the air holes is formed in the hard disc; at least part of the elastic unit is of an annular structure, the elastic unit is connected with the polishing head body and the hard disc, and a second air cavity is defined by the polishing head body, the elastic unit and the hard disc; a retaining ring; when the third air cavity is in a negative pressure state, the lower surface of the hard disc can make contact with and adsorb the wafer substrate, and the pressure in the second air cavity is controllable, so that the elastic unit is driven to flexibly move, the hard disc and the wafer substrate are assisted to float, and chemical mechanical polishing of the wafer substrate is achieved. The hard drive in the hard disc solves the problem that when the flexible film drives the wafer substrate to polish, the flexible film is pulled to cause fracture or elastic modulus change under the severe polishing condition, and the service life of the flexible piece is prolonged.

The invention provides a flexible clamping jaw for a spacer mounting robot and a using method of the flexible clamping jaw, and relates to the technical field of spacer mounting, the flexible clamping jaw comprises a mounting base, a sliding base, a rotating device, a rotating joint, power equipment and a pressing clamping jaw, the mounting base is mounted at the output end of the mounting robot, and the sliding base is slidably connected to the mounting base; the input end of the rotating device is connected to the sliding base, the output end of the rotating device is connected to the rotating connector, one side of the rotating connector is connected with the power equipment, and the pressing clamping jaw is connected to the output end of the power equipment and used for clamping or disengaging from the chuck. According to the spacer clamping device, the rotating and sliding component is connected with the pressing clamping jaw, the spacer clamping device has multiple degrees of freedom and can clamp a clamping head of a spacer from all directions, the pressing clamping jaw can be directly moved to a deviation position through the rotating and sliding component, and the clamping effect is good; the pressing clamping jaw can clamp the chuck, and after the chuck is fixedly connected with the split conductor, the chuck can be quickly separated from the split conductor through power equipment, so that the installation operation is relatively flexible.

This invention relates to the technical field of fire hydrants and discloses an intelligent fire hydrant with water consumption monitoring function, comprising: a hydrant end cap at the upper end of the hydrant body assembly, and an equipment assembly installed inside the hydrant end cap; a transparent detection window on the hydrant body assembly, a rod inside the transparent detection window, a central rotating shaft installed on the inner side of the transparent window assembly, and a rotating scraper on the central rotating shaft; the rod can detect the water level in the hydrant body in real time, and the rotating scraper can clean the dirt on the surface of the transparent window assembly; this invention, through the coordinated linkage structure of the float, rod, and float plate inside the transparent detection window, combined with the visual observation slot design of the transparent window assembly, realizes real-time accurate monitoring and intuitive visual feedback of water consumption in the fire hydrant, effectively solving the technical pain points of traditional fire hydrants lacking convenient monitoring methods and having difficulty in accurately controlling water consumption.

The present invention discloses a heat exchanger air tightness rapid detection and automatic hoisting integrated equipment, which relates to the field of heat exchanger air tightness detection technology, specifically a base plate, an inflation mechanism, a clamping mechanism, a fixing mechanism and a lifting mechanism, wherein the interior of the base plate is equidistantly penetrated with slide grooves, the outer sides of the connecting hinges are connected with rotating plates, the inflation mechanism is slidably installed above the rotating plate through a placement groove, the clamping mechanism is arranged between two adjacent inflation mechanisms, both sides below the base plate are slidably installed with slide plates, the fixing mechanism is arranged above the slide plate, and the lifting mechanism is assembled with the slide plate through lifting ears. The heat exchanger air tightness rapid detection and automatic hoisting integrated equipment can be used in conjunction with an automatic lifting truss, and there is no need to manually carry the heat exchanger. The heat exchanger is placed stably and can also be put into water stably. The heat exchanger inflation connection is quick and convenient, the inflation operation is simple and convenient, and the air tightness detection effect is good and very accurate.

The invention discloses a direct-current universal polarity measuring instrument, which relates to the technical field of absorption tower flue inlet flushing, and comprises a measuring unit, an instrument box, a direct-current meter, a shunt, a resistor, four groups of binding posts, a knob and a battery, and the storage unit comprises an isolation plate, two trigger assemblies, a buckle, a jacking assembly, a connecting column and a fixing piece. The instrument box has the beneficial effects that complete separation of the binding post and the line in a non-use state is realized, the risk of short circuit of the line is effectively avoided, the binding post is quickly recycled in the instrument box, and the situation that dust easily falls on the inner side of the binding post, and normal use of the binding post is affected is prevented. In addition, damage possibly caused by frequent plugging and unplugging of the binding post in the prior art is avoided, and the effects of quick separation and adaptation of various models can be achieved.

The application discloses a hub bolt hole drilling tool based on quick blade replacement and belongs to the technical field of drilling tool replacement. Mainly comprising a tool body, the tool body is composed of an integrated structure of a drill body and a handle, a chip groove for discharging iron chips is formed in the drill body, a drill tip is installed at the end of the drill body, a first blade and a second blade are arranged at the two sides of the end of the drill body, a locking unit is arranged between the first blade, the second blade and the drill body, the locking unit comprises a locking sleeve fixed on the end side of the drill body, a locking groove is formed in the inner wall of the locking sleeve, a locking rod is slidably arranged in the locking sleeve, a pressing table for pressing the blade is arranged at the top end of the locking rod, a ball body matched with the locking groove is telescopically arranged on the inner wall of the locking rod, a lifting rod is slidably arranged in the locking rod, and a resisting block is arranged on the lifting rod. The hub bolt hole drilling tool based on quick blade replacement solves the problem that the rotary reverse shock force in the drilling operation easily affects the single bolt fastening blade.

The application provides an underground pipe gallery tool vehicle, which comprises a driving vehicle, a carrying vehicle, a pair of track assemblies, a fire-fighting assembly and a control module; the driving vehicle and the carrying vehicle are tractionally connected, the carrying vehicle is used for transferring tools, the two track assemblies are respectively arranged on the two sides of the driving vehicle and are used for climbing stairs; the fire-fighting assembly is arranged on the driving vehicle, the fire-fighting assembly can spray fire extinguishing materials; the control module is signal-connected with the driving vehicle and the track assemblies respectively, and the control module can control the driving vehicle and the track assemblies to travel. The tool vehicle can quickly patrol and inspect the underground cable trench, can make the inspection personnel quickly reach a maintenance point under the condition of carrying multiple maintenance tools, reduces the labor intensity of the inspection, and improves the work efficiency of the inspection. In addition, when the inspection personnel encounters an emergency, the vehicle-mounted fire-fighting equipment and other devices are relied on for emergency rescue, so that the work safety of the inspection personnel is improved.

The utility model discloses an electric icebreaker with high safety performance, which mainly comprises a battery pack for output, a motor, a speed changer, a transmission device and an icebreaking head, the battery pack supplies power to the motor, and the motor converts high-speed rotating motion into low-frequency high-power motion through the speed changer. And the vibration is transmitted to the icebreaking head through the transmission device. Compared with the prior art, the electric icebreaker has the advantages that the electric icebreaker with high safety performance is provided so as to solve the problems that in the prior art, manual icebreaking is low in efficiency, high in cost and poor in safety, existing icebreaking equipment has defects and the like, and efficient, safe and convenient icebreaking operation is achieved.

The utility model belongs to diamond tool bit technical field, and disclose a kind of diamond tool bit of high sharp high cutting edge, including tool bit body, the tool bit body includes cutting part and base part, the cutting part is made of two mutually connected slope surface one and slope surface two, the area of slope surface one is greater than the area of slope surface two, diamond particle granularity inlayed on slope surface one is less than the diamond particle granularity on slope surface two, the surface of slope surface one and slope surface two is covered with metal ceramic wear-resistant coating, the utility model is set to cutting part, under the action of the area of slope surface one is greater than the area of slope surface two, the coarse granularity diamond of slope surface two is concentrated under the action of the diamond granularity of slope surface one is less than the slope surface two, simultaneously, the coarse cutting area is fully covered by the large-area fine granularity diamond of slope surface one, overall finishing cutting surface, realize the synchronous consideration of high sharp material breaking and high flat cutting edge.

The present invention relates to a tea fiber membrane cloth preparation device, belonging to the technical field of membrane cloth preparation, the tea fiber membrane cloth preparation device comprises a workbench, and also comprises: a water collecting mechanism; a sprinting mechanism. The present invention uses the water collecting mechanism and the sprinting mechanism in coordination, so that the water collecting mechanism works under the action of the high-pressure water jet ejected by the spurting plate, thereby driving the sprinting mechanism to pass through the spurting net back and forth and penetrate into the tea fiber non-woven fabric back and forth, and in the process of the sprinting mechanism penetrating back and forth into the tea fiber non-woven fabric, the sprinting mechanism will spray water into the tea fiber non-woven fabric, wash the fibers inside the tea fiber non-woven fabric longitudinally and transversely, remove the pollutants adhered to the fibers inside the tea fiber non-woven fabric, and provide transverse impact force for the fibers of the tea fiber non-woven fabric, further promote the mutual entanglement and entanglement of the fibers, enhance the bonding force between the fibers, and can increase the gap between the fibers after bonding, thereby improving the air permeability of the prepared membrane cloth.

The application provides a device and method for generating controllable flame sheet and flame ring in a planar shock tube, which comprises: an experimental section, a flame generating box arranged in the experimental section, and having a thin layer cavity for accommodating premixed combustible gas inside; a film covering both sides of the flame generating box, for sealing the thin layer cavity and breaking after being impacted by incident shock waves; a wire slot arranged on the flame generating box, having a preset geometric shape; and an ignition element embedded in the wire slot, for heating and igniting the premixed combustible gas; the flame generating box generates flame sheet or flame ring with preset disturbance in the same experimental section by replacing the component with different wire slot shapes. The application reduces the interference with shock wave propagation and flame evolution, thereby providing a reliable and flexible switching experimental platform for studying the compression, curling and stretching of flame interface under the action of incident shock waves.

This utility model discloses a novel window breaker, including a window breaking component and a cutting component. The cutting component includes a connecting block, a telescopic spring, a limiting plate, a button, and a blade. Operation via the button controls the blade to extend for cutting ropes, safety belts, etc. The window breaking component has a striking pin, a pressing element, an outer spring, and an inner spring. The striking pin is located inside the pressing element; the outer spring controls the pressing element's reset, and the inner spring controls the striking pin's extension. In use, the tube is held, the pressing element is pressed against the glass, and then the tube is pressed, causing the striking pin to eject and break the window. Upon ejection, the striking pin rotates due to the structure of the second guide groove, improving window breaking efficiency. The advantages of this technical solution are: it combines window breaking and cutting functions, addressing various emergency situations; it is easy to operate, both cutting and window breaking are simple and easy to learn; the structure is compact, making it easy to carry and store; the blade and striking pin will not be accidentally triggered when not in use; and it is highly efficient at breaking windows, quickly breaking glass of varying thicknesses.

The invention relates to the technical field of helium detection workpiece cleaning, in particular to a helium detection workpiece surface cleaning device which comprises a machine body, a soaking box is arranged in the machine body, two sets of machine bodies are slidably connected with placing frames, hydraulic cylinders are fixedly arranged on one sides of the placing frames, and the output ends of the hydraulic cylinders extend into the machine body and are fixedly connected with clamping plates. Supporting plates are fixedly connected to the two sides of the containing frame, guide rods are fixedly connected to one sides of the two sets of supporting plates, and protruding blocks are fixedly connected to the two sides of the machine body. Through cooperation between a rotating motor and a fan, after the rotating motor is started, the fan blows away a solution left on the surface of a workpiece during rotation, so that the workpiece can be rapidly drained, and meanwhile, through cooperation between a moving plate and a moving frame, when the moving plate is pushed, the workpiece can be rapidly drained. And the moving plate can push the fan to move by pushing the moving frame, so that the fan can uniformly and quickly blow away the solution on the surface of the workpiece in the moving process, and the workpiece draining efficiency is improved.

The utility model belongs to the technical field of heating furnaces for preparing and storing hydrogen materials, and particularly discloses a cooling and stirring structure of a heating furnace for preparing and storing hydrogen materials, which comprises a cooling fan arranged outside a heating furnace body and a cooling component positioned in the heating furnace body, and the cooling fan is communicated with the cooling component through an air inlet pipe; a supporting assembly is arranged on the outer side of the air inlet pipe and connected with the cooling assembly, an air cylinder is arranged at the top of the heating furnace body, and the output end of the air cylinder is connected with the supporting assembly and used for driving the cooling assembly to move vertically. The cooling assembly is arranged in the heating furnace body, the cooling assembly is communicated with the external cooling fan to further cool a melt-spinning sheet falling off from the cooling roller in an accelerated mode, the air cylinder is connected with the cooling assembly, ascending and descending of the cooling assembly are achieved, and the melt-spinning sheet is crushed and stirred. The specific surface area of the material is greatly increased, the surface sites of the hydrogen storage material for adsorbing hydrogen are increased, and the hydrogen storage efficiency is effectively improved.

The invention discloses a multi-stage filtering device for municipal wastewater, relates to the technical field of wastewater treatment, and solves the problem that the cleaning speed of a winding mechanism is relatively low as arc-shaped hook plates need to be rotated one by one when a worker cleans filaments on the winding mechanism and the operation is relatively complicated. A water inlet pipe communicated with the separation box is fixedly mounted on the left side, close to the upper end, of the separation box, a water drainage pipe communicated with the separation box is fixedly mounted on the right side, close to the lower end, of the separation box, and the separation assembly is used for separating filaments in wastewater and mounted in the separation box; according to the device, the material pushing mechanism and the driving assembly are installed, so that the multiple material blocking rods can be quickly separated from filaments at the same time, the filaments and impurities separated from the inclined flow guide disc can be conveniently pushed off by the material pushing plate, and the filaments and the impurities on the inclined flow guide disc can be conveniently and quickly cleaned.

This utility model discloses a device for checking the interlocking relationship between a rail transit signal and a turnout, comprising a housing, an electrical control assembly, and a mounting mechanism. The housing has a receiving cavity and is formed by combining a front shell and a rear shell. The electrical control assembly is installed within the receiving cavity. The mounting mechanism has a locked state and an unlocked state, and includes a first mounting base and a second mounting base. The first mounting base is used to install on the signal, and the second mounting base is connected to the rear shell. The first mounting base has a first adjusting head, and the second mounting base has a second adjusting head. When the mounting mechanism is in the locked state, the first adjusting head and the second adjusting head are engaged to fix the second mounting base to the first mounting base. When the mounting mechanism is in the unlocked state, the second adjusting head can move relative to the first mounting base, allowing the second mounting base to disengage from the first mounting base. This achieves the effect of quick replacement and disassembly, facilitating subsequent maintenance.

This invention discloses a multi-branch battery pack high-voltage system and its control method. The multi-branch battery pack high-voltage system includes: multiple battery pack branches, a charging control module, and a discharging control module. Each battery pack branch includes a battery pack, a battery drain interrupter (BDU), and a bidirectional DC-DC converter module. The battery pack is connected to the input terminal of the BDU. The BDU has a main circuit and an equalization circuit. The main circuit controls the on / off of the main power of the battery pack branch it belongs to. The BDUs of each battery pack branch are connected to each other through the equalization circuit for active equalization between branches. The output terminal of the BDU is connected to the input terminal of the bidirectional DC-DC converter module, which controls the charging and discharging current of its respective battery pack branch. The output terminals of all bidirectional DC-DC converter modules are connected in parallel and then connected to the charging control module and the discharging control module. This invention can solve the circulating current problem between battery packs and improve the stability of the multi-branch battery pack high-voltage system.

The utility model provides a condensate water treatment device for a skid-mounted heat exchange system, and belongs to the field of heat exchange. The problems of low condensate water treatment efficiency and high power consumption are solved. The device comprises a shell which is a hollow shell, a condensate water collecting part is rotationally connected in the shell and used for condensing water, and the near-ground side of the shell is communicated with the water collecting part; the drainage part is connected to the condensate water collecting part in a sliding mode and used for sliding on the condensate water collecting part and pushing the condensate water collecting part to the moisture collecting part when the condensate water collecting part moves circumferentially; the driving part is used for driving the condensate water collecting part to rotate. The device is mainly used for treating condensed water of the skid-mounted heat exchange system.

The invention provides a steel ball polishing treatment system. The steel ball polishing treatment system comprises a mounting shaft arranged in a self-rotating mode, an inner cylinder and an outer cylinder, the inner cylinder and the outer cylinder are coaxially arranged with the mounting shaft, and the outer cylinder surrounds the inner cylinder; a plurality of partition plates are fixedly connected between the inner barrel and the outer barrel to form a plurality of polishing cavities arranged outside the mounting shaft in a surrounding mode, the inner barrel is provided with a plurality of first leakage holes communicating with the interior and the exterior of each polishing cavity, and the outer barrel is provided with a door plate for opening and closing each polishing cavity. A plurality of second leakage holes are further formed in the door plate; the upper end of the box body is open; the mounting shaft is horizontally arranged above the box body; and the outer barrel body and the inner barrel body are partially accommodated in the box body. The problems that in the prior art, steel ball polishing treatment is long in time consumption and low in efficiency are solved.

This invention relates to the field of new energy vehicle processing technology, specifically to a welding device for new energy vehicle parts. The device includes a resistance welding machine body for welding wire harnesses and a top welding head and a bottom welding head mounted on the machine body. After the operator places one end of the wire harness onto a terminal connector, the device drives a positioning and pressing mechanism via a detection opening and closing mechanism. This further clamps and positions the terminal connector and one end of the wire harness. Simultaneously, the device presses down on one end of the wire harness to prevent it from tilting due to its own weight, ensuring sufficient contact between the wire harness and the terminal connector, thereby reducing contact resistance and ensuring stable welding between the top and bottom welding heads.

The utility model discloses a bracket for a robotic dog to carry a drone, comprising: a base, which is installed on the back bearing surface of the robotic dog; a support block is installed on the base plate surface, a support plate is installed at the top of the support block, the support plate is used to carry the drone, side plates are vertically installed on both sides of the support plate, an electromagnetic locking module is installed on the inner plate surface of the side plates, the electromagnetic locking module is used to limit the drone, a communication interface slot is formed on the support plate surface, a communication contact block is arranged in the communication interface slot, a communication contact point adapted to the communication contact block is arranged at the bottom of the drone, and the drone is electrically connected to the robotic dog through the communication contact block. The utility model realizes ground-air cooperation by the robotic dog carrying the drone. In case of emergencies, the drone can directly detach from the back of the robotic dog and take off quickly, avoiding the time delay of manual deployment.

The utility model relates to the technical field of waste treatment equipment, in particular to a waste treatment device for tire isolation preservative film processing, which comprises a base and a treatment box arranged at the top of the base, a feeding groove is arranged on one side of the treatment box, and a conveying belt is arranged below the inside of the feeding groove. A cutting table fixedly connected with the inner wall of the treatment box is arranged at the terminal end of the conveying belt, and a liftable vertical cutting knife is arranged above the cutting table; a flow guide plate fixedly connected with the top of the interior of the treatment box is arranged on the side, away from the conveying belt, of the cutting table, and a transverse crushing roller and a longitudinal crushing roller frame are sequentially and horizontally arranged below the position between the cutting table and the flow guide plate from top to bottom; a discharge pipe is arranged at the bottom of the treatment box; the lower portion of the discharging pipe communicates with a compression box with one end being open. And through the multi-stage crushing and compression design, efficient treatment of tire isolation preservative film waste is achieved, the size of the waste is reduced, and the treatment efficiency and the environmental protection performance are improved.

The utility model discloses a special-shaped nozzle of a steam turbine air extractor, and relates to the technical field of special-shaped nozzles of air extractors, the special-shaped nozzle comprises a nozzle main body and a nozzle communicating pipe, the upper end of the nozzle main body is provided with a second nozzle, and the outer side of the nozzle main body is provided with an anti-slip strip; according to the special-shaped nozzle of the steam turbine air extractor, when a nozzle body needs to be detached, the nozzle body is rotated, a connecting pipe and a clamping block are driven to rotate along the interior of a rotating groove, then a positioning groove is extruded along the outer side of a positioning pin, the positioning pin is separated from the interior of the positioning groove, and when the clamping block corresponds to a clamping groove, the nozzle body is pulled, so that the nozzle body is detached; the connecting pipe is driven to move outwards along the interior of the moving groove, the clamping block is further driven to move outwards along the interior of the clamping groove, so that the connecting pipe and the nozzle communicating pipe are quickly separated and disassembled, the disassembling efficiency is improved, and follow-up maintenance and replacement are facilitated.

The utility model discloses a coal slurry raw material sorting device which comprises a machine frame and a screen drum rotationally installed on the machine frame, a transverse shaft extending in the length direction of the machine frame is rotationally installed on the machine frame, the transverse shaft penetrates through the screen drum, and the rotating direction of the transverse shaft is opposite to the rotating direction of the screen drum. A plurality of connecting rods which are distributed in the circumferential direction of the transverse shaft and extend in the radial direction are fixedly connected to the transverse shaft, a plurality of crushing cutters which are distributed in the length direction of the transverse shaft at intervals are fixedly connected to each connecting rod, and spiral blades extending in the length direction of the transverse shaft are fixedly connected to the inner wall of the screen drum; and the spiral blade rotating along with the screen drum is matched with the plurality of crushing cutters rotating along with the transverse shaft and is used for crushing the coal slurry raw material. According to the utility model, caked raw material coal can be effectively and quickly crushed, so that the raw material coal is favorably sorted, the sorting efficiency is improved, and the sorting effect is ensured.

The utility model discloses an efficient sludge discharge system for horizontal-flow sedimentation, which comprises two lifting supports which are symmetrically arranged, cross beams which are arranged along the horizontal direction are fixedly arranged on the opposite inner sides of the two lifting supports, two transmission shafts which are rotatably connected with the two cross beams are arranged between the two cross beams, and the transmission shafts are perpendicular to the cross beams. The transmission shaft is provided with two bent plate chains which are arranged side by side through chain wheels, and the peripheries of the two bent plate chains are connected with a plurality of mud scraping plates which are uniformly distributed; connecting arms are fixed to the opposite outer sides of the top ends of the two lifting supports, the bottoms of the connecting arms are connected with the heads of hydraulic push rods, and main bodies of the hydraulic push rods are located on the two sides of the horizontal-flow sedimentation tank in the length direction. The sludge discharge system provided by the utility model can adapt to the change of the thickness of a sludge layer and avoid incomplete sludge scraping, the sludge scraping part can be quickly separated from the bottom of a pool and lifted above the water surface, a worn part is convenient to disassemble or replace, intermittent operation can be realized, the wear of equipment is reduced, and the service life is prolonged.

The utility model relates to the technical field of needle rail polishing surface metal triangular pieces, and discloses a needle rail polishing surface metal triangular piece with an adjusting structure, which comprises a base and a lower needle rail, the lower needle rail is arranged at the bottom of the front end of the base, and an upper needle rail is arranged at the top of the front end of the base. A first positioning block and a second positioning block are fixedly connected to the rear end of the upper needle rail, a first reserved groove and a second reserved groove are formed in the front end of the base, a fixing rod is fixedly connected between the interiors of the first reserved groove, and an adjusting shaft is longitudinally arranged in the second reserved groove in a penetrating mode. According to the needle rail polishing and grinding surface metal triangular piece with the adjusting structure, the fixing rod and other parts are arranged, when the distance between the upper needle rail and the lower needle rail needs to be adjusted, the adjusting shaft can be screwed, the second positioning block can move on the adjusting shaft, meanwhile, the first positioning block can move on the fixing rod, and therefore the distance can be conveniently and stably adjusted; the problem that the distance between the upper needle rail and the lower needle rail is inconvenient to adjust is solved.

The application discloses a relay, which comprises a pair of static contacts, a pair of conductive parts and a moving contact. The pair of static contacts are arranged along a first direction. The conductive parts have conductive sections, the conductive sections of the pair of conductive parts are respectively connected to the pair of static contacts, and the conductive sections extend away from each other along the first direction, and the ends of the conductive sections away from the static contacts are static contact points. The moving contact is used to contact or separate the static contact points of the conductive sections of the pair of conductive parts, and the respective orthographic projections of the moving contact and the conductive sections on a target plane overlap. The target plane is perpendicular to the moving direction of the moving contact.

This utility model discloses a through-shaft internal rotor speed reducer with heat dissipation fins, relating to the field of through-shaft internal rotor speed reducers. It includes a protective assembly, inside which an output motor is housed, and inside the output motor, a speed reducer assembly is slidably mounted. The output motor includes a self-heating adjustment assembly. The output motor rotates within the protective assembly, thereby facilitating airflow within the device. The speed reducer assembly includes a self-disassembly / reassembly component. This through-shaft internal rotor speed reducer with heat dissipation fins, through the rotation of its rotating shaft during use, drives the fan blades to rotate. Combined with the gaps between the first and second fin plates and the heat dissipation holes within the second and first limiting plates, the device can draw surrounding air into its interior for airflow, improving its heat dissipation capacity and enhancing its performance.

The utility model discloses a kind of mining explosion-proof follow-up low-voltage latch, belong to wire connection technical field, including clamping component, first tubular component, second tubular component and third tubular component connected in sequence;Clamping component is sequentially composed of small inner diameter tubular section, variable diameter tubular section and large inner diameter tubular section, annular pressing plate, sealing washer and fixedly arranged annular baffle are equipped in small inner diameter tubular section, annular pressing plate can extrude sealing washer and make its inner hole shrink by screwing back;Multiple electric conductive sockets are equipped in first tubular component along radial direction interval, and any adjacent electric conductive socket is filled with insulating material;Multiple electric conductive plugs are equipped in second tubular component along radial direction interval, and electric conductive plug includes plug rod arranged along front-back direction and plug quick connector arranged in the rear end of plug rod, and any adjacent electric conductive plug is filled with insulating material. Realize quick plug-in and breaking between power supply and electric equipment, and greatly improve the efficiency of wiring and breaking.