40results about How to "Increase travel" patented technology

The invention relates to the technical field of screening, in particular to a gravel screening device for concrete production, which comprises a rack, the rack is provided with a supporting surface inclined along the front-back direction, the supporting surface is provided with a screening cylinder, and the screening cylinder comprises a front feeding cylinder and a rear discharging cylinder; the feeding cylinder and the discharging cylinder are both fixedly arranged on the supporting face, a plurality of movable screen cylinders are arranged between the feeding cylinder and the discharging cylinder, and the multiple movable screen cylinders are the same in diameter and are sequentially connected from front to back. An annular screen is rotationally arranged on the peripheral face of each movable screen drum, and meshes of the multiple annular screens are gradually increased from front to back. Each movable screen drum can slide in the direction perpendicular to the supporting face, each movable screen drum is provided with a driving mechanism, the driving mechanisms can drive the annular screens to rotate, the rotating directions of every two adjacent annular screens are opposite, and the screening effect is improved.

The invention belongs to the technical field of carrying machinery, and particularly relates to a fork distance adjusting device. A pallet fork distance adjusting device comprises a side shifter, a pallet fork frame connecting piece, two pallet fork mounting plates and two driving assemblies. The side shifter comprises a frame and an oil cylinder, the oil cylinder is installed on the frame, and the two ends of the fork arm carrier connecting piece are connected with the oil cylinder and the forklift respectively. The two pallet fork mounting plates are mounted on the frame in a sliding manner; and each pallet fork mounting plate is connected with a pallet fork. The driving assemblies are mounted in the frame, and the two driving assemblies are connected with the two pallet fork mounting plates correspondingly. The driving assembly comprises a motor, a lead screw, a fixing plate and a nut, and the nut is connected with the pallet fork mounting plate. The adjusting mode of the motor and the lead screw is adopted, multiple oil pipelines do not need to be arranged in the pallet fork distance adjusting device, the structure of the pallet fork distance adjusting device is simplified, meanwhile, the lead screw is adopted, the moving stroke of the pallet fork mounting plate can be increased in the limited space of the frame, the pallet fork distance adjusting device can be suitable for different scenes, and the practicability of the pallet fork distance adjusting device is improved.

The invention relates to carrying equipment, and belongs to the technical field of intelligent warehousing. The carrying equipment comprises a moving chassis, a portal and accessories, the portal has the height direction and comprises a plurality of sub-portals, the sub-portals comprise the first portal, the second portal and the at least one third portal, the first portal is installed on the moving chassis, and the at least one third portal and the second portal are sequentially and movably connected in the height direction; and the movable parts can respectively move along the height direction. The accessory is installed on the second portal frame and can move in the height direction along the second portal frame. According to the carrying equipment, the pallet fork can be lifted to a high position, and cargoes can be stably lifted.

The utility model relates to a transfer robot, and belongs to the technical field of intelligent warehousing. The transfer robot comprises a walking chassis, a portal and at least two accessories. The portal frame has the height direction and comprises a first portal frame body and at least two second portal frame bodies which are installed on the walking chassis. The at least two second door frames are movably installed on the first door frame and can move in the height direction. The at least two accessories are installed on the at least two second portals respectively and can move in the height direction respectively. According to the transfer robot, a plurality of trays can be forked or transferred at a time, efficiency is effectively improved, in addition, due to the fact that the accessory can move relative to the second portal frame in the height direction, the accessory and the second portal frame are matched to form two-stage movement, and the accessory has a larger moving stroke in the height direction.

The utility model relates to carrying equipment, and belongs to the technical field of intelligent warehousing. The carrying equipment comprises a moving chassis, a portal frame and at least two accessories. The door frame has a height direction and comprises a first door frame and at least two second door frames which are installed on the moving chassis. The at least two second door frames are movably installed on the first door frame and can move in the height direction. The at least two accessories are installed on the at least two second portals respectively and can move in the height direction respectively. According to the carrying equipment, a plurality of trays can be forked or transferred at a time, efficiency is effectively improved, in addition, due to the fact that the accessory can move relative to the second portal frame in the height direction, the accessory and the second portal frame are matched to form two-stage movement, and the accessory has a larger moving stroke in the height direction.

The utility model discloses a continuous rigid frame bridge hanging basket walking limiting device, and belongs to the technical field of bridge construction. A continuous rigid frame bridge hanging basket walking limiting device comprises two rails which are fixed to the upper end of a bridge and are parallel to each other, the bottom of a hanging basket is in sliding fit with the two rails, a push plate capable of sliding in the length direction of the rails is arranged between the two rails, and a supporting plate is arranged on the push plate. A driving structure is arranged on the supporting plate to drive the push plate to slide in the length direction of the track and push the hanging basket to move; a pressing plate assembly is arranged at the upper end of the supporting plate and comprises two sliding frames capable of synchronously and reversely sliding, the sliding direction is perpendicular to the length direction of the rail, pressing plates are arranged on the sliding frames, the pressing plates can generate extrusion force on the hanging basket, walking of the hanging basket is limited through static friction force, and therefore it is guaranteed that after the hanging basket is pushed to the designated position, the hanging basket is pushed to the designated position. And the position stability is further ensured, so that construction is facilitated.

The present invention relates to the technical field of pipe material connection, and discloses a material connection support mechanism, comprising a material connection base frame, a fixed plate arranged on the material connection base frame, a movable plate arranged on the fixed plate and capable of being raised and lowered, a two-stage movable plate arranged on the one-stage movable plate and capable of being raised and lowered, a one-stage material connection component for driving the one-stage movable plate to be raised and lowered, and a two-stage material connection component for driving the two-stage movable plate to be raised and lowered following the one-stage movable plate to be raised and lowered, the top of the two-stage movable plate is hinged with a material connection plate, and the two-stage movable plate is provided with a material connection drive component for driving the material connection plate to be horizontally or downwardly tilted; through the above-mentioned arrangement, the material connection support mechanism has the function of supporting the pipe fittings up and down, and realizes a support stroke with a minimum compression ratio of two stages of rising or falling, can realize a larger moving stroke, adapts to the material connection height requirements of the pipe cutting machine, and is conducive to the rational use of space.

The present invention provides an injection device, belonging to the field of injection molding technology, comprising: an injection cylinder, a rotary motor and a screw are sequentially arranged along the injection direction, wherein the injection cylinder comprises a cylinder body, a piston rod connected to the screw is built therein, and a wear-resistant belt and a flat key are arranged at one end of the piston rod connected to the screw; the rotary motor comprises a stator and a rotor arranged inside and outside, and a slide groove is arranged on the inner wall of the rotor to form a keyway with the flat key, and the slide groove runs through both ends of the rotor along the axis direction of the rotor, wherein the moving stroke of the flat key is the overall length in the axis direction of the rotor, and the linear movement of the screw is driven by the translation of the piston rod, and the piston rod and the screw are driven to rotate synchronously by the rotor. The present invention expands the injection stroke of the piston rod by increasing the moving stroke of the flat key, thereby increasing the single injection volume, thereby improving work efficiency, and ensuring the concentricity of the piston rod and the screw.

The utility model relates to the technical field of paint removing machines, in particular to an oil heat paint removing machine with a steam absorption treatment function, which comprises a shell, the shell is provided with an oil tank, a heating piece used for heating the oil tank, a liquid medicine box connected with the oil tank and a steam suction hood assembly, the liquid medicine box is provided with a cavity for placing a paint removing piece and a cavity opening for the paint removing piece to extend into, and the steam suction hood assembly is provided with a steam suction hood. The steam suction hood assembly is communicated with the cavity opening, and a baffle used for prolonging the steam stroke is arranged on the steam suction hood assembly. By arranging the baffle, the moving stroke of paint remover steam in the steam suction hood assembly can be prolonged, liquid drops formed by condensation of the paint remover steam can be collected, the paint remover steam can be condensed on the steam suction hood assembly, waste caused by the fact that a large amount of steam is directly sucked away is avoided, consumption of paint remover is reduced, and the paint remover can be conveniently used. And the number of times of adding the paint remover by an operator is reduced, the paint removing efficiency is further improved, and manpower is saved.

The present invention discloses an integrated chemical defense and explosion-proof decontamination disposal system, which comprises a chemical defense and explosion-proof storage and transportation tank, and is characterized in that: it also comprises a decontamination disposal device, the tank mouth locking mechanism assembly of the chemical defense and explosion-proof storage and transportation tank is simultaneously sleeved on the mouth of the tank body and the mouth of the tank cover, the decompression and unloading component and the emergency unloading component of the decompression and unloading cleaning assembly of the chemical defense and explosion-proof storage and transportation tank are respectively sealed and connected with the top of the tank body, and the cleaning component is sealed and connected with the bottom of the tank body; the harmful gas and liquid inlet of the decontamination disposal device are sealed and connected with the discharge port of the chemical defense and explosion-proof storage and transportation tank, and the outlet is discharged to the outside, the decontamination liquid inlet of the decontamination disposal device is sealed and connected with the decontamination liquid storage tank, and the decontamination liquid outlet of the decontamination disposal device is respectively sealed and connected with the filling port of the primary decontamination assembly, the filling port of the secondary decontamination assembly and the filling port of the chemical defense and explosion-proof storage and transportation tank.

A pneumatic three-jaw material grabbing device with an improved structure comprises a base plate, a rotary disc, a rotary air cylinder, three workpiece clamping hands, a linear guide rail, a sliding plate and a driving rod, a shaft hole is formed in the base plate, the driving end of the rotary air cylinder penetrates through the shaft hole to be arranged on the upper side face of the base plate, and the lower end portion of the driving end is combined with the center of the upper side face of the rotary disc. The linear guide rails are arranged on the lower side face of the base plate in a radial mode at equal intervals and surround the rotary disc, the sliding plate is arranged on the linear guide rails in a sliding mode, one end of the driving rod is hinged to the inner side of the periphery of the rotary disc, the other end of the driving rod is hinged to the sliding plate, and the workpiece clamping hands are arranged on the lower side face of the sliding plate. The rotary air cylinder drives the rotary disc to conduct reciprocating circumferential rotation of a radian stroke, so that the driving rod drives the sliding plate and the workpiece clamping hand to conduct reciprocating motion of a linear stroke. Therefore, the pneumatic three-jaw material grabbing device is simple and compact in structure, the moving stroke range of the workpiece clamping hand is large, and workpieces with different outer diameters can be firmly grabbed.

The utility model relates to the technical field of air suction cabinets, in particular to a steam air suction cabinet which comprises a shell, the shell is provided with a condensation cavity and an installation cavity, the condensation cavity is provided with an air inlet, the installation cavity is provided with a fan assembly and an exhaust port, one end of the fan assembly is communicated with the condensation cavity, and the other end of the fan assembly is communicated with the exhaust port. The other end of the fan assembly communicates with the exhaust port, and the condensation cavity is provided with a plurality of baffles. By arranging the baffle, the moving stroke of paint remover steam can be prolonged, liquid drops formed by condensation of the paint remover steam can be collected, the paint remover steam can be subjected to condensation treatment before entering the mounting cavity, and waste caused by the fact that a large amount of steam is directly pumped away is avoided; the influence of the paint remover steam on the environment and the corrosion of the paint remover steam on equipment pipelines are reduced.

The utility model discloses a rotary type large-stroke telescopic material taking and placing device which comprises a rotary workbench, a lower layer plate, an upper layer plate and a carrier, a first translation driving mechanism is further arranged between the workbench and the lower layer plate, a transmission structure is arranged between the workbench and the upper layer plate, and the first translation driving mechanism comprises a first driving motor, a lead screw and a nut; the transmission structure comprises a lower rack fixed to the workbench, an upper rack fixed to the upper layer plate and a gear rotationally connected with the lower layer plate, and the gear is meshed with the lower rack and the upper rack at the same time. And a second translation driving mechanism is further arranged between the upper-layer plate and the carrier and comprises a second driving motor, a driving wheel, a driven wheel, a synchronous belt and a connecting block. The material taking mechanism is simple in structure, the needed space is reduced, time is greatly shortened, manual assistance is not needed, the matching performance of an assembly line is good, the automation standard is completely met, and the problems that an existing material taking mechanism is short in stroke and cannot meet the requirement, and potential safety hazards exist are solved.

The utility model discloses a telescopic material taking and placing device capable of 360 degree rotation, including rotary drive motor, hollow rotating platform, first bottom plate, second bottom plate, third bottom plate and fourth bottom plate, and first bottom plate is rotated any angle through rotary drive motor cooperation hollow rotating platform, through first servo motor can drive screw -nut drive structure action drive second bottom plate translation, and through the cooperation of gear and rack drive structure drive third bottom plate realizes the translation of double stroke, through second servo motor drive synchronous drive structure action drive fourth bottom plate translation, and fourth bottom plate detachable installation has the carrier for placing product. The utility model discloses through hollow rotating platform adjustment carrier's attitude to the angle position required, can realize 360 degree range arbitrary angle rotation, and can drive carrier and convey product to farther place, increase the moving stroke of product, satisfy the production need.

The invention discloses a drying device which comprises a drying cylinder, an air supply assembly, a turbulent flow air pipe and a hot blast stove. The drying cylinder is provided with a drying runner in the vertical direction, the upper end of the drying runner is a feeding end, and the lower end of the drying runner is a discharging end. The air supply assembly comprises at least one sieve plate and multiple sets of air supply pipes, the sieve plates and the multiple sets of air supply pipes are alternately distributed in the drying runner in the vertical direction, all the air supply pipes are obliquely arranged upwards in the air supply direction of the air supply pipes, and the sieve plates are arranged between the two sets of air supply pipes. The turbulent flow air pipe is located in the drying flow channel, located between the adjacent air supply pipe and the sieve plate and arranged above the sieve plate, and the turbulent flow air pipe is obliquely arranged downwards in the air supply direction of the turbulent flow air pipe; the hot air furnace is provided with an air outlet pipe used for outputting hot air, and the air outlet pipe communicates with the air supply pipe and the turbulent flow air pipe. According to the scheme, the moving stroke of quartz sand in the drying flow channel can be increased, the quartz sand is dried through multiple times of air supply, the drying effect is improved, meanwhile, the quartz sand can be disturbed and dispersed without additionally arranging a motor and stirring blades, and the equipment cost is saved.

The present application relates to a kind of matrix drill pipe storage system and conveying system, belong to mechanical design field.The matrix drill pipe storage system includes several drill pipe storage units arranged in matrix, all the drill pipe in the drill pipe storage unit is consistent in direction;Each drill pipe storage unit includes a base, the base is provided with side slope, the side slope is provided with partition, the distance between adjacent partition is matched with the diameter of drill pipe.The matrix drill pipe conveying system is provided with sliding rail in the side of matrix drill pipe storage system, and the sliding rail is consistent with the direction of drill pipe inside it;Drill pipe grabbing system is slidably arranged on the sliding rail.The present application can solve the problem that the capacity of existing drill pipe box is too small, and manual loading and unloading is needed, and the work process is complicated.

The invention relates to a double-break isolating switch, which comprises a shell, wherein a first and a second static contact seat are relatively fixed in the shell, a moving contact seat is arranged between the first and the second static contact seats, a first and a second moving contact are guided and slidably mounted on the moving contact seat, a driving structure comprises a transmission shaft and an operating mechanism, the transmission shaft drives the first and the second moving contacts to synchronously move through the transmission structure in the shell to realize opening and closing, the transmission structure in the shell comprises a main crank arm, the transmission shaft is non-rotatably connected to the middle part of the main crank arm, two ends of the main crank arm are respectively linked with two groups of transmission components, the transmission component comprises a connecting rod, the middle part of the connecting rod is hinged to the end part of the main crank arm, one end of the connecting rod is hinged to the moving contact, a guiding structure for guiding the other end of the connecting rod is arranged in the shell, the guiding direction of the guiding structure is perpendicular to the guiding moving direction of the moving contact, the movement requirement of the moving contact can be met by rotating the main crank arm less than one circle, and the response speed of opening and closing can be improved.

The invention provides four-wheel positioning equipment which comprises a base assembly, a stand column assembly arranged on the base assembly, a flat plate mounting structure, a cross beam assembly arranged on the stand column assembly in a sliding mode and a shooting camera fixed to the cross beam assembly. The stand column assembly comprises a first stand column, a lifting driving part fixedly connected with the first stand column, a transmission wheel driven by the lifting driving part to do lifting motion and a transmission chain wound on the transmission wheel, the bottom end of the first stand column is connected to the base assembly, and the flat plate mounting structure is fixed to the first stand column. One end of the transmission chain is fixedly arranged, and the other end of the transmission chain is connected with the cross beam assembly. According to the four-wheel positioning equipment, through lifting of the transmission wheels, the lifting assembly has a large moving stroke, meanwhile, the length of the first stand column is small, and production and transportation are convenient.

This utility model discloses a differential feed aluminum casting sawing device, belonging to the field of sawing equipment technology. It aims to solve the technical problem that existing robotic arms easily interfere with the body structure of multi-axis saws when gripping irregularly shaped aluminum castings and placing them onto a fixed platform. The multi-axis saw includes a saw base with a mounting groove on one side of its upper surface. A mounting plate is symmetrically fixed inside the mounting groove, and a feeding assembly is detachably mounted on the mounting plate. The feeding assembly includes a linear moving mechanism, which comprises symmetrically arranged side plates and connecting frames symmetrically fixed between the side plates. A linear reciprocating mechanism is arranged between the connecting frames, and a ball bearing seat is movably engaged on the reciprocating mechanism. A fixing component is fixedly connected to the bottom end of the ball bearing seat. This utility model has the advantage of reducing interference between the aluminum castings and the multi-axis saw during the feeding process.

The invention relates to the technical field of floor tile processing, and provides a floor tile manufacturing device for pseudo-classic architecture.The floor tile manufacturing device comprises a rack, a pressing die, a platform, side dies and bottom dies, the pressing die is arranged on the rack in a lifting and sliding mode, the platform is used for being arranged on the rack, the side dies are transversely arranged on the platform in a sliding mode, the side dies are arranged in pairs, and the bottom dies are arranged on the rack in a lifting and sliding mode; a pressing space is formed between the bottom die and the two side dies and used for being filled with raw materials, the pressing die is used for entering the pressing space and pressing the raw materials after sliding, supporting ribs are transversely arranged on the side dies and used for bearing floor tile products formed through pressing, and the bottom die abuts against or cancels abutting against the supporting ribs after sliding. According to the technical scheme, the problems that in site construction in the prior art, after floor tiles are pressed, the pushing stroke of a traditional horizontal pushing discharging mode is long, the friction degree between the traditional horizontal pushing discharging mode and the floor tiles is high, and the surface quality of the floor tiles is likely to be affected are solved.

The utility model provides an elastic carrying seat, which comprises a carrying seat, a jig is arranged above the carrying seat, a guide shaft is vertically and fixedly arranged at the bottom of the jig, the guide shaft is vertically and slidably connected with the carrying seat, a transition block is fixedly arranged at the bottom end of the guide shaft, the jig and the carrying seat are elastically supported, and the guide shaft is fixedly connected with the transition block. A supporting seat corresponding to the transition block is arranged below the transition block; according to the utility model, when the pressure head presses a product, the jig and the transition block are rigidly connected through the guide shaft, the jig and the transition block move downwards relative to the carrying seat, the transition block moves downwards to be in contact with the supporting seat, the force of the pressure head for pressing the product downwards is transmitted to the supporting seat through the transition block, and at the moment, the carrying seat is only subjected to the elastic force of the elastic support; the conveying system is prevented from being stressed excessively in the press-fitting process; the moving stroke between the jig and the carrying base is long, compatibility to carriers of different heights is high, and the supporting distance does not need to be adjusted regularly.

The utility model discloses a position-adjustable conveyor and a conveying system, the position-adjustable conveyor comprises a conveying mechanism, the conveying mechanism is connected with a first oscillating rod and a second oscillating rod, the first oscillating rod and the second oscillating rod are parallel, one end of the first oscillating rod and one end of the second oscillating rod are pivotally connected to the conveying mechanism, and the other end of the second oscillating rod is pivotally connected to the conveying mechanism. The other ends of the first swing rod and the second swing rod are hinged to the lower hinge seat, the first swing rod or the second swing rod is connected with one end of a swing driver in a pivoted mode, and the other end of the swing driver is connected to the fixing seat in a transmission mode. The conveying mechanism is opened in a translation mode, compared with an overturning opening mode, the conveying mechanism can be opened under the condition that objects exist on the conveying mechanism, meanwhile, the notches are opened more sufficiently, and compared with the mode that the conveying mechanism is made to translate on a rail, under the condition that the movement strokes of an air cylinder of the driver are the same, the conveying mechanism can be opened more stably. And the conveying mechanism can have a larger moving stroke.

The present invention relates to the field of angiography technology, and in particular to a precise speed-controlled medical extended injection device, comprising a shell, an injection tube with a valve and an air inlet pipe connected to the upper end of the shell, a gas storage tank and two injection tanks are arranged inside the shell, the air inlet pipe is connected to the inner side of the gas storage tank, the inner side of the shell is located below the two injection tanks and is rotatably connected to a hollow shaft, and a first gear is fixed to one end of the outer side of the two hollow shafts. The present invention can adjust the connection position of the injection connecting rod and the first gear in real time through a contact adjustment mechanism. When the connection position is close to the edge of the first gear, the movement stroke of the piston can be increased, thereby increasing the injection flow rate. When the connection position is close to the center of the first gear, the movement stroke of the piston can be reduced, thereby reducing the injection flow rate. Medical staff can flexibly adjust the carbon dioxide injection flow rate according to the state of the patient's veins.

The present application provides a material pushing device, which includes a base, a propulsion mechanism, a first driving mechanism and a second driving mechanism. The propulsion mechanism is located on the base, and the first driving mechanism is used to drive the base to move to a preset position so that the material carried on the propulsion mechanism is facing an empty space in the container, and the propulsion mechanism is used to push the carried material into the empty space in the container; when the second driving mechanism is in the first driving mode, the second driving mechanism is used to drive the propulsion mechanism to approach or move away from the empty space of the container along a first direction; when the second driving mechanism is in the second driving mode, the second driving mechanism is used to drive the propulsion mechanism to rotate relative to the base to adjust the angle of the propulsion mechanism toward the empty space of the container. The above-mentioned box-entering device realizes driving the material to be entered into the box to move to the entry position and adjusting the material entry angle through a set of second driving mechanisms, which simplifies the overall structure of the device and reduces the manufacturing cost of the device.

This invention discloses an automated storage and retrieval system (AS / RS) inbound / outbound method, system, and outbound method. The inbound / outbound method uses a carrier to accommodate multiple palletized goods and employs a reasonable structure to enable smooth transfer of goods between different conveyor lines, carriers, and shelves. Thus, during the inbound / outbound process, multiple palletized goods can be put into or taken out of the warehouse in a single transfer of the carrier, reducing the additional losses caused by frequent material handling by the inbound / outbound trolleys and effectively improving inbound / outbound efficiency.

The invention relates to a paste packaging container with an improved driving structure. The paste packaging container comprises a shell which is vertically through; the inner shell vertically penetrates through the outer shell and is located in the outer shell; the movable plate is transversely arranged in the inner shell and can move up and down relative to the inner shell, and the inner shell and the movable plate define a containing space which is provided with an opening in the top and used for containing paste; the driving structure comprises a first screw rod which vertically extends; the driving assembly can drive the first screw rod to axially move while driving the first screw rod to rotate in the circumferential direction; and the first lifting rod is arranged on the first screw in a sleeving mode and is in threaded connection with the first screw, so that the first lifting rod can move in the vertical direction, and the top of the first lifting rod abuts against or is connected with the movable plate. Under the condition that the size of the packaging container is fixed, the containing space can be made to be large, and more paste can be contained.

The present invention relates to the technical field of material receiving equipment, and discloses a material receiving device, comprising a plurality of material receiving modules arranged at intervals and a plurality of material discharge racks arranged at intervals behind the plurality of material receiving modules, each material receiving module comprising a material receiving base frame, a fixed plate arranged on the material receiving base frame, a movable plate arranged on the fixed plate and capable of being lifted up and down, a second movable plate arranged on the first movable plate and capable of being lifted up and down, a first material receiving component for driving the first movable plate to be lifted up and down, and a second material receiving component for driving the second movable plate to be lifted up and down following the lifting of the first movable plate, a material receiving plate being hinged at the top of the second movable plate, and a material receiving drive component for driving the material receiving plate to support pipe fittings when it is horizontal or to guide the pipe fittings to the material discharge rack behind the material receiving base frame when it is tilted backward; the above arrangement realizes the up and down follow-up support and the support stroke of the two-stage lifting.

The invention discloses a straight shaft and piston rotary type internal combustion engine which comprises a straight shaft, a pressure suction cylinder and a power exhaust cylinder, the pressure suction cylinder is in an annular shape, and an inner cavity of the pressure suction cylinder is hollow; a pressure suction cylinder isolating valve is arranged in an inner cavity of the pressure suction cylinder. Pressure suction cylinder pistons are arranged in the pressure suction cylinder working cavities, and a pressure suction cylinder connecting rod is connected between the pressure suction cylinder pistons in the two pressure suction cylinder working cavities; a pressure suction cylinder air inlet and a pressure suction cylinder air outlet are formed in the two sides of the pressure suction cylinder isolating valve in the pressure suction cylinder working cavity; the pressure suction cylinder and the power exhaust cylinder are arranged side by side in the axis direction of the straight shaft. The power exhaust cylinder is annular, and an inner cavity of the power exhaust cylinder is hollow; a power exhaust cylinder isolating valve is arranged in an inner cavity of the power exhaust cylinder; power exhaust cylinder pistons are arranged in the power exhaust cylinder working cavities, and a power exhaust cylinder connecting rod is connected between the power exhaust cylinder pistons of the two power exhaust cylinder working cavities; a power exhaust cylinder air inlet and a power exhaust cylinder air outlet are formed in the power exhaust cylinder working cavity; the power exhaust cylinder air inlet is close to the power exhaust cylinder isolating valve, and an ignition device is arranged at the position, close to the power exhaust cylinder air inlet, in the power exhaust cylinder working cavity. The internal combustion engine is simple in structure and high in energy conversion efficiency.

The present invention discloses an energy-saving chemical machinery exhaust gas treatment device, comprising: a pretreatment cylinder, a filter chamber, a mixing component and a gas-liquid separation chamber, the pretreatment cylinder is connected to the filter chamber, the pretreatment cylinder is suitable for introducing smoke into the interior of the filter chamber, the mixing component comprises an exhaust pipe, a liquid storage tank and a water outlet pipe, the exhaust pipe is suitable for being connected to an air pump to extract smoke in the filter chamber, the water outlet pipe is suitable for being connected to a water pump to extract exhaust gas treatment liquid in the liquid storage tank, the exhaust pipe is obliquely inserted into the interior of the water outlet pipe, the part of the exhaust pipe located in the water outlet pipe is provided with an exhaust hole penetrating the exhaust pipe itself, the exhaust hole is suitable for passing the exhaust gas in the exhaust pipe into the water outlet pipe to mix with the exhaust treatment liquid, and the exhaust gas is directly passed into the circulating exhaust treatment liquid for mixing and reducing the generation of bubbles for treatment, thereby improving the overall work quality.

The invention provides a lateral wall auxiliary net hanging device and a digging and anchoring all-in-one machine, and relates to the technical field of underground mining anchor net laying. The side wall auxiliary net hanging device comprises a fixing frame, a first driving piece, a first lifting frame, a second lifting frame and a lifting piece. The first driving piece is installed on the fixing frame, and the first lifting frame is connected with the first driving piece and movably connected with the fixing frame. The second lifting frame is movably connected to the first lifting frame. One end of the lifting part is connected with the fixing frame, and the other end bypasses one end, away from the fixing frame, of the first lifting frame and is connected with the second lifting frame. The anchor net can be effectively lifted and laid, the working efficiency is improved, and the labor intensity of workers is reduced.