2938 results about "Piston cylinder" patented technology

The present invention relates to the technical field of waste heat recovery equipment, and specifically discloses a waste heat recovery device for flue gas in a thermal power plant. It includes a box body with an upper smoke chamber, a heat exchange chamber and a lower smoke chamber inside. A number of smoke pipes connecting the upper smoke chamber and the lower smoke chamber are fixed in the heat exchange chamber; above the smoke pipes, there is a piston cylinder fixed by the box body; the upper end of the piston cylinder is connected to a high-pressure gas supply pipe, and a piston is arranged inside. The piston is connected with a scraping head through a push rod; side holes are provided on the push rod; when the high-pressure gas drives the piston to move downward, the scraping head moves along the inner wall of the smoke pipe to scrape off the ash slag. The waste heat recovery device for flue gas in this thermal power plant has a cleaning function and a better cleaning effect, high heat exchange efficiency and good waste heat recovery effect. The waste heat recovery device for flue gas in this thermal power plant can be automatically cleaned without disassembling components, is fast and efficient, and can be operated online. The ash slag scraped off during the cleaning process can be centrally recovered, avoiding re-mixing into the flue gas again, reducing the workload in the flue gas dust treatment link, and saving the subsequent environmental protection treatment cost.

A bi-directional pneumatic impactor for imparting impact forces to an object. The impactor includes a support structure having at least one grip member and a piston reciprocally moveable along a piston axis. A pressure control system coupled with the support structure and adapted to be connected to a supply of pressurized air. The pressure control system reciprocatingly moves the piston along the piston axis to generate forceful impacts at one or both ends of the reciprocal movement. An impact transfer assembly disposed on the support structure is adapted to be coupled with the object whereby the impact transfer assembly transfers impact forces to the object in the driving and / or the retracting directions. A control spool may be used to control the supply of pressurized air to the piston cylinder. The impact transfer assembly may include a hammer pin extending axially through the piston.

Systems and methods are provided for a portable air compressor comprising an electric battery, an electric motor, a piston, and an air hose. The electric motor is powered by the electric battery. The piston is coupled to and driven by the electric motor. The piston is configured to compress air within a piston cylinder. The air hose has a first end attachable to an air outlet of the piston cylinder and a second end attachable to an inflatable object. The portable air pump is configured to inflate the inflatable object to a target air pressure. When the target air pressure is below a predetermined pressure threshold, the portable air pump inflates the inflatable object at a first inflation rate. When the target air pressure is above the predetermined pressure threshold, the portable air pump inflates the inflatable object at a second inflation rate greater than the first inflation rate.

The seabed imaging sonar comprises a receiving transduction module, the receiving transduction module comprises a receiving plate, an annular sealing block, a socket and a front cover, a first mounting opening is formed in the middle of the front cover, the annular sealing block is arranged at the edge of the first mounting opening, and the receiving plate is arranged at the first mounting opening; the annular sealing block is at least partially attached to the inner side face and the side edge of the receiving plate. The socket is arranged on the inner side face of the receiving plate and located in the middle of the annular sealing block. The shell is internally provided with a pressure balance cavity, the pressure balance cavity is filled with a compressible fluid medium, the side wall of the shell is provided with a second installation opening, the front cover is installed at the second installation opening, and the socket is located in the pressure balance cavity; and the piston assembly comprises a piston cylinder and a piston, the piston is movably arranged in the piston cylinder, and one end of the piston cylinder communicates with the pressure balance cavity so as to allow the compressible fluid medium to enter the piston cylinder.

The invention relates to the technical field of deep sea power equipment, and discloses a pressure energy reciprocating power device and an action control method thereof.The pressure energy reciprocating power device comprises a sealing piston cylinder, a pressure-resistant pipe and an underwater control part; the sealing piston cylinder comprises a cylinder body and a piston rod arranged in the cylinder body, the piston rod comprises a piston and a push rod, one end of the push rod is connected with the piston, the other end of the push rod penetrates through the cylinder body in a sealing and sliding mode, and the piston divides the cylinder body into a rod cavity and a rodless cavity. The pressure-resistant pipe comprises a main pipeline, a first branch pipeline and a second branch pipeline, one end of the main pipeline is communicated with the rodless cavity, the other end of the main pipeline is communicated with the first branch pipeline and the second branch pipeline, and the first branch pipeline and the second branch pipeline are communicated with the outside and the pressure-resistant storage cylinder respectively; the underwater control piece is arranged on the pressure-resistant pipe and used for controlling the two branch pipelines to be alternately connected and disconnected so as to drive the push rod to stretch out or retract back and forth. Stable power output is obtained through energy conversion, and the device is simple in structure, easy to implement, safe and reliable.

The invention relates to the technical field of aerogel, in particular to an aerogel material production forming device and method, the aerogel material production forming device comprises a machining table and a lifting plate fixed to the machining table, and a piston cylinder is arranged at the top of the machining table; the supporting and pumping mechanism is arranged on the piston cylinder, a storage box is connected to the supporting and pumping mechanism, and a plurality of feeding holes distributed at equal intervals are formed in the bottom of the storage box; the hollow pipe is arranged on the supporting pumping mechanism, and a pressurization regulation and control assembly is arranged on the hollow pipe; the follow-up translation assembly is arranged on the storage box and connected with the pressurization regulation and control assembly, a sealing plate matched with the storage box is connected to the follow-up translation assembly, and a conveying pipe matched with the feeding hole is arranged on the sealing plate; the strength regulation and control mechanism is arranged on the pressurization regulation and control assembly; and the negative pressure suction mechanism is arranged on the material storage box and connected with the supporting pumping mechanism, and it can be ensured that the problem that the production quality of aerogel is poor due to the fact that a conveying pipeline is blocked in a pressurized conveying mode is solved.

The invention discloses a special cooling device for a computer GPU (Graphic Processing Unit) cluster server, which comprises a box body, a support frame, a circulating pipe, a cooling box, a first piston cylinder, a liquid outlet pipe, an injection pipe, a liquid inlet pipe, a heat dissipation mechanism, a cooling mechanism, a detection mechanism and an auxiliary mechanism, meanwhile, a filter plate can prevent dust in air from entering, a detection mechanism monitors the temperature in the box body in real time by utilizing the thermal expansion characteristic of alcohol, and a signal is transmitted to an external controller through a pressure sensor so that a worker can master the operation temperature state of the server in real time; the cooling mechanism automatically adjusts the flow speed and flow of cooling liquid according to temperature changes so as to meet the heat dissipation requirements of the server under different loads, the auxiliary mechanism conducts rolling sweeping on a filter plate through a cleaning roller, smooth air circulation is ensured, the efficient and intelligent cooling effect is achieved, and the service life of the server is prolonged. And the operation stability and the service life of the GPU cluster server are improved.

The invention belongs to the technical field of insulating oil multi-parameter monitoring, and discloses an insulating oil multi-parameter online monitoring device and monitoring system.The insulating oil multi-parameter online monitoring device comprises a transformer, a pressure moving mechanism is arranged above the transformer, an exhaust mechanism is arranged at the top of the transformer, and the pressure moving mechanism comprises a piston cylinder; the piston cylinder is fixedly connected to the top end of the transformer and is communicated with an inner cavity of the transformer, the top end of an inner cavity of the piston cylinder is fixedly connected with a pressure spring, the bottom end of the pressure spring is fixedly connected with a piston plate, the piston plate is attached to the inner wall of the piston cylinder, and the center of the top end of the piston plate is fixedly connected with a lifting rod. The piston plate drives the movable hollowed-out plate and the fixed hollowed-out plate to be staggered, so that hydrogen in the inner cavity of the transformer can be exhausted along the exhaust pipe, the hydrogen can be exhausted when the hydrogen content in insulating oil in the inner cavity of the transformer sharply rises, and the situation that the transformer is damaged due to high air pressure is avoided.

The invention discloses a stainless steel workpiece polishing device which comprises an equipment box body, wherein a polishing solution box is arranged on one side of the equipment box body; the rotating disc is rotationally arranged at the top of the equipment box body, a plurality of hollow shafts with negative pressure environments inside are rotationally arranged in the middle of the rotating disc, first vacuum suction cups used for fixing workpieces are installed at the tops of the hollow shafts, and sealing pistons used for cutting off negative pressure of the hollow shafts are arranged in the hollow shafts. An electromagnetic driving part for driving the sealing piston is arranged below the sealing piston; through cooperative work of a piston cylinder and a filter box and lifting cooperation of a lifting plate, a lifting piston and the piston cylinder, dust collection, filtering and spraying of a polishing solution can be achieved while the lifting plate is stably guided, dust and waste gas generated in the polishing process can be effectively collected, environmental pollution is reduced, and the polishing effect is improved. And the polishing liquid can be automatically pressurized and sprayed, so that cyclic utilization of air is realized, and the energy consumption is reduced.

The invention belongs to the technical field of biomass gasification furnaces, and discloses a low-tar biomass gasification furnace and a use method thereof, the low-tar biomass gasification furnace comprises a gasification furnace body; the feeding mechanism is arranged at the top of the right side of the gasifier body; the material guide pipe is arranged on the right side in the gasification furnace body. According to the technical scheme, the movable plate, the spraying pipe head and the valve clack are arranged, after biomass in the material storage net cylinder is combusted and gasified, the biomass can upwards pass through the filtering medium, the filtering medium can adsorb tar in gas, then air pressure can push the movable plate to ascend, and the biomass can be sprayed out through the spraying pipe head. Then, a movable plate pushes gas in a first pneumatic piston cylinder to be guided into the top of a piston plate through a vent groove, the piston plate is pushed downwards, so that liquid in a liquid storage box is sprayed downwards through a spraying pipe head, and at the moment, the movable plate moves upwards to enable the spraying pipe head to push a valve clack to be opened; finally, the spraying pipe head sprays a catalyst to the tar in the filtering medium, so that the tar is pyrolyzed, gasified and discharged, and the tar content is greatly reduced.

The utility model discloses a high-precision valveless plunger pump capable of freely adjusting flow, which is characterized in that the volume of the whole pump is reduced through an adapter, the movement accuracy of a piston rod of a pump body is ensured, the flow precision of the pump body is greatly improved, the angle of a piston cylinder body is adjusted to adjust the flow, and the flow requirements of various places are met. A motor body of the motor is fixed to one side plate of the supporting plate, the adjusting plate is arranged on the other side plate of the supporting plate, a plunger pump cylinder body is fixedly arranged on the upper side of the adjusting plate, an adjusting long hole is formed in the connecting position of the supporting plate and the adjusting plate, and the adjusting plate and the supporting plate are fixed through an adjusting bolt penetrating through the adjusting long hole. Two ends of the steering gear are respectively connected with a power output shaft of the motor and a plunger pump piston rod, and the plunger pump cylinder body and the plunger pump piston rod are made of ceramics; the plunger pump can be widely applied to the field of plunger pumps.

The utility model belongs to the field of clamps, and particularly relates to an anode carbon block stacking clamping clamp which comprises a support. Support arms are rotationally connected to the two sides of the support; a clamping plate is hinged to the bottom of the supporting arm; a connecting assembly is arranged above the support arm; the top of the support is fixedly connected with a piston cylinder; a piston rod is connected in the piston cylinder in a sliding manner; the bottom end of the piston rod is fixedly connected with a bottom plate; the bottom of the piston cylinder is fixedly connected with a flexible pipe; by arranging a spray head, a piston cylinder, a piston rod and a flexible pipe, when a support moves downwards, the piston rod is extruded by the top side of an anode carbon block, a rod cavity of the piston cylinder sucks air, and when the support moves upwards, the piston rod moves downwards under the action of gravity, so that air is extruded and sprayed out, a clamping plate is purged by the spray head, and then the clamping surface of the clamping plate is cleaned; therefore, friction force reduction caused by the fact that foreign matter or dust adheres to the clamping faces of the clamping plates can be reduced, and then the situation that anode carbon blocks fall off is reduced.

The invention discloses a method and device for polishing and strengthening the inner surface of a variable-diameter elbow, and relates to the field of polishing equipment, the variable-diameter elbow and piston cylinders located at the two ends of the variable-diameter elbow are included, and the piston cylinders comprise the left piston cylinder and the right piston cylinder; a first piston, a second piston and a third piston are arranged in the left piston cylinder, the first piston is independently arranged in the left piston cylinder, the second piston and the third piston are oppositely arranged in the left piston cylinder, and the left piston cylinder is further provided with a water flow inlet and a grinding material flow inlet. A fourth piston, a fifth piston and a sixth piston are arranged in the right piston cylinder, the sixth piston is independently arranged in the right piston cylinder, the fourth piston and the fifth piston are oppositely arranged in the right piston cylinder, and the right piston cylinder is further provided with a water flow outlet and a grinding material flow outlet. A mold is arranged in the variable-diameter bent pipe, the shape of the mold is subjected to profiling machining according to the shape of the variable-diameter bent pipe, the radial section width between the variable-diameter bent pipe and the mold is controlled through the mold, and uniform polishing is achieved.

The invention discloses a wearable small animal electrical stimulation device, and belongs to the technical field of medical instruments, the purpose of connection is achieved by plugging a wiring terminal into an electric plugging seat, a pressing ring extrudes a piston cylinder after being pressed, gas is guided into a gas cushion ring through a gas pipe, and the gas cushion ring is connected with the wiring terminal. The air cushion ring expands and drives a plurality of sealing rings to be embedded into a sealing groove outside the power connection socket, the purpose of sealing connection between the fixing sleeve and the power connection socket is achieved, the situation that water seepage and dust accumulation are caused by a gap between the fixing sleeve and the power connection socket is prevented, and the end of a clamping strip in the locking assembly can retract into a sliding way after being pressed, so that the sealing effect is improved. When the clamping strip moves to the clamping groove, the clamping strip can be clamped into the clamping groove through elastic support of the second spring, so that the purpose of locking the position of the electric socket is achieved, and the situation that the electric socket and the wiring terminal are loosened due to the fact that a small animal is subjected to stress reaction when being electrically stimulated and a wire is pulled is prevented; and the use stability and the experiment precision of the electrical stimulation device are ensured.

The utility model belongs to the technical field of hydraulic execution components, and particularly relates to a hydraulic cylinder sleeve type connector which comprises a hydraulic cylinder sleeve body, a pipeline connecting piece is fixed at the upper end of the hydraulic cylinder sleeve body, an upper connecting piece is fixed inside the pipeline connecting piece, and a sealing ring is fixed at the lower end of the upper connecting piece. A centering conical barrel is fixed to the lower side of the hydraulic cylinder sleeve body, symmetrical locking hydraulic cavities are formed in the lower end of the interior of the hydraulic cylinder sleeve body, hydraulic cylinder covers are fixed to the upper ends of the symmetrical locking hydraulic cavities, limiting grooves are formed in the left side and the right side of an upper connecting piece, clamping jaws are arranged in the two limiting grooves, and a clamping block is arranged in the clamping jaws. The hydraulic piston cylinder moves to drive the piston connecting rod to move, so that the piston connecting rod drives the driving ring plate on the side wall to move, the driving ring plate is matched with the clamping jaw, the upper connecting piece and the lower connecting piece are clamped, locking and unlocking are easier, and the locking effect is better.

The utility model belongs to the technical field of thin-wall angular contact ball bearings, and particularly relates to a thin-wall angular contact ball bearing capable of being quickly lubricated, which comprises a bearing component, the bearing component comprises an outer ring, a lubricating component is fixedly connected inside the outer ring, and clamping components are arranged at the upper end and the lower end of the inner wall of the outer ring. The lubricating assembly comprises six sets of piston cylinders fixedly connected to the interior of the outer ring, pistons are slidably connected to the inner walls of the six sets of piston cylinders, piston rods are welded to one sides of the pistons, and the surfaces of the piston rods are sleeved with springs. The bearing friction coefficient is reduced, the service life is prolonged, meanwhile, self-lubrication can be achieved through rotation of the balls, manual spraying is not needed, when the ball is separated from extrusion of the balls, the piston is driven to reset under the counter-acting force of the spring, and the service life is prolonged. And under the action of the one-way piece, lubricating oil can be effectively pumped into the oil storage tank through the oil pumping pipe.

The invention discloses a surface welding device for hardware machining, and relates to the field of hardware welding, the surface welding device comprises a welding mechanism, a displacement mechanism, a transmission mechanism, a clamping mechanism, a liquid spraying mechanism, an ash removal mechanism, a workbench, an upper frame, first hardware and second hardware, and is characterized in that a bottom through frame is formed in the middle of the bottom end of the workbench; the surface welding device for hardware machining comprises a workbench, an upper frame is arranged at the top end of the workbench, an electric control box plate is arranged at the top end of the upper frame, second hardware is arranged on one side of the top end of the workbench, and first hardware is arranged on the other side of the top end of the workbench. The auxiliary rotating rod and the half gear are rotated, the unique half gear structure drives the movable block to horizontally move, then the push rod pushes the push piece in the piston cylinder, and scaling powder liquid is rhythmically sprayed to the hardware connecting position from the liquid box through the upper guide pipe and the water spraying pipe.

The invention relates to the technical field of gas injection, in particular to a carbon dioxide gas-liquid combined mixed injection structure and a using method thereof.The carbon dioxide gas-liquid combined mixed injection structure comprises a reaction tank, a hollow pipe and a communicating pipe, the hollow pipe and the communicating pipe are installed at the two ends of the reaction tank, and the end, away from the reaction tank, of the communicating pipe communicates with a discharging pipe; the piston cylinder is installed at the end of the hollow pipe, a double-material pumping mechanism is arranged in the piston cylinder, and the double-material pumping mechanism can convey materials in the piston cylinder into the hollow pipe so as to adjust the pressure intensity in the hollow pipe; the pressurization atomization mechanism is arranged in the hollow pipe; and the conduction regulation and control mechanism is arranged in the conduction pipe, a follow-up disc is connected to the conduction regulation and control mechanism, a second discharge hole is formed in the follow-up disc, and a follow-up rotating assembly is further arranged in the conduction pipe. Therefore, the effect of spraying gas under the specific pressure is achieved.

The utility model provides a pneumatic steering wheel adjusting structure, and belongs to the technical field of automobile design and manufacturing. Comprising a first ball screw fixed on a steering column of a steering wheel; the first piston cylinder is fixedly connected with a nut of the first ball screw; the second ball screw is fixed on a steering column of the steering wheel; the second piston cylinder is fixedly connected with a nut of the second ball screw; the compressor forms a closed loop with the upper and lower layers of the first piston cylinder and the second piston cylinder respectively; the adjusting switch of the pneumatic steering wheel is configured to change the flowing mode of air in the closed loop through conversion between a plurality of configurations. By means of the advantage that the air source can be shared with other system structures, use of electrical equipment is reduced, the cost for adjusting the steering wheel is reduced, the reliability of adjusting the steering wheel is improved, the cost is reduced, the reliability is improved, and meanwhile the overall driving experience is not affected.

The invention discloses multifunctional lead brick extrusion equipment with a replaceable mold, relates to the technical field of lead processing, and aims to solve the problems of production stagnation and economic loss caused by idle equipment due to long consumed time of the whole process when the mold is replaced in the prior art, the multifunctional lead brick extrusion equipment comprises a base, and the top of the base is fixedly connected with a plurality of guide frames; the outer wall of the guide frame is slidably connected with a pair of symmetrically arranged extrusion plates, the bottom of the extrusion plate on the lower side is fixedly connected with the top of the base, the top of the guide frame is fixedly connected with a top cover, and the bottom of the top cover is fixedly connected with a hydraulic rod; and the other end of the hydraulic rod is fixedly connected with the top of the extrusion plate on the upper side, a pair of piston cylinders are arranged on the top of the base, and corresponding molds are arranged on the opposite faces between the extrusion plates. The method has the advantage that the idle time of equipment caused by die replacement is greatly shortened.

The utility model discloses a pneumatic valve actuator of a long-stroke shifting fork structure. The pneumatic valve actuator comprises a piston cylinder assembly, a box body assembly and a spring assembly. The box body assembly comprises a box body in butt joint with the front end of the cylinder body and a guide block arranged in the box body and used for bearing the piston rod and guiding operation of the piston rod. The spring assembly comprises a spring barrel connected with the front end of the box body, a spring seat arranged in the middle of the tail end in the spring barrel, a supporting spring arranged on the spring seat in a sleeving mode and a spring rod connected with the supporting spring and arranged in the spring barrel, and the box body assembly with a shifting fork and the spring assembly with the spring rod are sequentially arranged at the braking end of the piston cylinder assembly. A piston rod pair shifting fork transmission structure is adopted, torque complementation is well formed with a traditional product, the piston cylinder assembly, the box body assembly and the spring assembly are assembled into a whole, the appearance of the actuator is slender, the gravity center of the actuator is centered, and the operation reliability of the valve starting actuator is improved.

The utility model discloses a flattening device for brake pad steel backing processing, which relates to the technical field of steel backing processing and comprises a base body, a mounting bottom plate is fixedly mounted at the top of the base body, a lower pressing tool is mounted at the center of the upper surface of the mounting bottom plate, and supporting columns are fixedly mounted at four corners of the mounting bottom plate. An oil press is fixedly installed at the top ends of the supporting columns, an upper pressing plate is fixedly installed at the output end of the oil press, and buffering assemblies are installed on the upper surface of the installation bottom plate and located on the two sides of the lower pressing tool. The piston rod drives the piston to the bottom of the piston barrel, gas in the piston barrel is squeezed into the gas outlet pipe and finally blown out through the gas blowing box, sweeps on the surface of the lower pressing tool are blown to fall into the collecting drawer, and after a period of time, an operator draws out the collecting drawer and cleans the sweeps in a concentrated mode. Scraps are prevented from being accumulated on the surface of the lower hold-down clamp to affect the follow-up flattening operation of the brake pad steel backing, and then the overall operation speed is prevented from being affected.

The invention relates to the technical field of injection mold cooling, in particular to an injection mold cooling runner system based on multidirectional synchronous cooling, which comprises a mold body and a protective plate fixedly mounted on the mold body, and symmetrically arranged support plates are fixed in the protective plate; the multidirectional cooling assembly is arranged on the supporting plate; the piston cylinder is fixedly installed in the protection plate, an air inlet pipe and an air supply pipe are connected to the piston cylinder, and the air supply pipe is connected with the multidirectional cooling assembly; the driving mechanism is arranged in the piston cylinder, an intermittent air pumping mechanism connected with the driving mechanism is further arranged in the piston cylinder, and the piston cylinder connected with the piston cylinder in a sliding and sealing mode is connected to the intermittent air pumping mechanism; according to the cooling device, the flowing speed of cooling water can be increased in an air pumping mode, and the cooling water is controlled to form turbulent flow, so that the cooling effect on a mold is enhanced.

The invention discloses an electromagnetic valve vibration fatigue test device and a failure judgment method, and relates to the technical field of electromagnetic valve tests.The electromagnetic valve vibration fatigue test device comprises a test box, a conveying mechanism, a balance weight mechanism, a vibration table, an opening and closing detection mechanism and a clamping detection mechanism; the front end and the rear end of the top in the test box are fixedly connected with counterweight mechanisms, the bottom in the test box is fixedly connected with a vibration table, the right end in the test box is fixedly connected with an opening and closing detection mechanism, and the top of the vibration table is fixedly connected with a clamping detection mechanism and a conveying mechanism; the inlet and outlet pressure of the detected electromagnetic valve is detected through a sensor, failure judgment of the electromagnetic valve is achieved, then the pressure is adjusted through the combination mode of low-speed precise conveying of a piston cylinder and high-speed large-flow conveying of an external fluid conveying box, periodic fluid pressure fluctuation is applied while vibration is conducted, and the real load of the electromagnetic valve is simulated. And the superimposed effect of mechanical vibration and fluid impact is synchronously tested.

The invention provides a hydraulic control and hydraulic drive coiled tubing tractor. The problems that an existing tractor is complex in structure and low in control stability are solved. The first piston cylinder, the second piston cylinder and the third piston cylinder are sequentially arranged on the center pipe in the length direction of the center pipe. Connecting rod supporting mechanisms are arranged at the ends, away from the second piston cylinder, of the first piston cylinder and the third piston cylinder, and the first piston cylinder and the third piston cylinder are used for controlling the two connecting rod supporting mechanisms to be folded and unfolded alternately; the first piston cylinder and the second piston cylinder are installed on the center pipe, the third piston cylinder is installed on a piston rod of the second piston cylinder, a hydraulic control driving assembly used for controlling the first piston cylinder, the second piston cylinder and the third piston cylinder to move is installed on the outer wall of the center pipe, and a drilling fluid inlet is formed in the side wall of the center pipe and communicated with the liquid inlet end of the hydraulic control driving assembly. The single telescopic hydraulic cylinder is adopted, the traction period is shortened, the traction speed is increased, meanwhile, only the pressure of drilling fluid needs to be controlled in the traction process of the tractor, and the system operation stability is high.

The invention belongs to the technical field of gas pipeline detection, and discloses gas pipeline compressive strength detection equipment which comprises a main body box and a detection box fixedly arranged on the inner wall of the bottom of the main body box, and a strength detection assembly and a hydraulic control assembly are arranged in the main body box. The strength detection assembly comprises a fixing frame fixedly arranged on the bottom wall of the main body box, a two-way screw with the middle rotationally arranged in the fixing frame and a guide rod with the middle horizontally and fixedly arranged in the fixing frame, and the change of air pressure in an air pressure piston cylinder is controlled by activating a servo motor in the forward direction and the reverse direction; the pressure-resistant and tear-resistant performance test is carried out on the gas pipeline by utilizing the force generated by the gas pressure gradient, in the process, the internal volume of the hydraulic piston cylinder is correspondingly changed due to the compression and release of the gas pressure, and the compressive strength and tear-resistant strength indexes of the gas pipeline are calculated by accurately monitoring the increase and decrease of the volume of the liquid in the observation cylinder.

The utility model relates to the technical field of robots, and provides a humanoid robot based on atmosphere driving, which comprises a main driving system for providing negative pressure potential energy required by driving; the tail end execution system is driven by the main driving system to complete specific actions; the switch valve system is arranged on the main driving system and can control fluid to enter the end execution system or come out of the end execution system so as to be matched with execution of actions, and the actions comprise the stretching action and the contracting action; the sensing system is used for acquiring sensing information of each part of the humanoid robot; the power supply management system is used for supplying power to electric components; the control system is connected with the main driving system, the switch valve system, the sensing system and the power management system; and the supporting framework provides a supporting carrier for each system. The series piston cylinders and the parallel piston cylinders are integrated to serve as a main driving system, negative pressure potential energy is released by means of atmospheric pressure, actions of a natural person are simulated, and the practicability of the robot is improved.

The invention relates to a bridge abutment settlement deformation monitoring device and method, and belongs to the field of bridge monitoring, the bridge abutment settlement deformation monitoring device comprises two bearing frames arranged on one side of a bridge pier and a steel wire rope I arranged between the bearing frames and used for supporting a connecting support, and the top of the connecting support is provided with a monitoring mechanism; the monitoring mechanism comprises a plurality of piston cylinders adjustably arranged at the top of the connecting support, piston push rods are slidably arranged at the tops of the piston cylinders, extension rod pieces fixedly connected with the piston push rods are fixedly arranged on one side of the pier, and display sleeves are fixedly arranged on the two sides of the connecting support. The display sleeve is communicated with the piston cylinder body through a connecting pipeline and used for transmitting liquid prefabricated in the piston cylinder body, and a piston sliding block is arranged in the display sleeve in a sliding mode. The double steel wire ropes and the tension jack form an elastic supporting system to buffer vibration, the hydraulic linkage design converts tiny settlement into visual displacement, the spring reset mechanism is matched to improve data reliability, automatic reset is achieved, continuous monitoring is supported, and the monitoring range is expanded.

The invention discloses a preassembled shockproof box-type transformer substation, and relates to the technical field of transformer substations, the preassembled shockproof box-type transformer substation comprises a transformer box and a base, damping mechanisms are arranged on the two sides of the base, the damping mechanisms are connected with the side edges of the base through mounting plates, the damping mechanisms are self-adaptive hydraulic damping mechanisms, and each damping mechanism comprises a piston cylinder, a buffer rod, a trigger assembly and an adjusting assembly; the piston cylinder is filled with hydraulic oil and provided with a piston disc dividing an inner cavity of the piston cylinder into an upper cavity and a lower cavity, the upper end of the buffer rod is connected with the piston disc, and the lower end of the buffer rod extends out of the piston cylinder and is provided with a contact block. The problems that in the prior art, when a power transformation box is installed, due to the fixed damping characteristic, a traditional spring shock absorber cannot be adjusted in a self-adaptive mode to adapt to the variable falling speed and the box body weight, and the buffering effect is mismatched with the impact working condition are solved. The device has the advantages that impact energy of different intensities is effectively dissipated through a multi-stage buffering and automatic adjusting mechanism, and the safety of electrical elements in the box-type substation during installation and operation is ensured.

The invention belongs to the technical field of underground engineering supporting, and particularly discloses a shear-resistant variable-resistance yielding anchor rod capable of measuring pretightening force and a using method thereof.The shear-resistant variable-resistance yielding anchor rod is provided with an anchor rod body, the anchor rod body comprises a head section, a middle standard section and a tail section which are sequentially connected, the head section comprises a head end rod body, the head end rod body is provided with a piston head, and the piston head is sleeved with a sleeve; the sleeve and the piston head form a piston structure. A piston cylinder structure is arranged on the middle standard section and is used for adapting to shear deformation caused by dislocation and slippage deformation of a rock stratum. The tail section comprises a first rod body and a second rod body, the tail end of the second rod body is arranged in the first rod body in a penetrating mode along the rod length of the first rod body, connected with the elastic piece and capable of sliding in the rod length direction of the first rod body, and the tail end of the second rod body is provided with an outer extension and capable of feeding back deformation of the elastic piece. The problem that a common anchor rod cannot meet the requirement for large deformation of surrounding rock is solved, the problem that an existing anchor rod is prone to being cut off under transverse displacement of a rock stratum is solved, and meanwhile the pretightening force can be measured.