898results about How to "Relieve pressure" patented technology

The invention discloses a key value storage system indexing method oriented to an NVM-NVMe SSD (Non-Volatile Memory-Non-Volatile Memory Express Solid State Disk) hybrid architecture, which comprises the following steps of: constructing a heterogeneous storage architecture taking cold and hot data perception as a core driving mechanism, coordinating and managing two types of storage media, namely a non-volatile memory NVM and a solid state disk NVMe SSD, and realizing efficient identification, layered writing and dynamic migration of cold and hot data. According to the method, the characteristics of low delay, durability and byte addressing of the NVM are utilized, the frequency and I / O overhead of Flush and Compaction operations are reduced in a data write-in path, meanwhile, the problem of mixed storage of cold and hot data is avoided, and therefore the overall performance and storage efficiency of a system are remarkably improved. In addition, by introducing an asynchronous migration module, the method can dynamically adapt to the change of data popularity along with time evolution, and effectively support high performance and high availability of the key value system in long-term operation.

This invention discloses an artificial intelligence-based method and system for the inspection and control of power distribution networks using unmanned aerial vehicles (UAVs). Relating to the field of UAV power inspection technology, the method includes: adjusting the UAV's pose in real time based on target perception feedback during the inspection process to actively align with the target and acquire images of power components; uploading valid images from the selected images to a cloud-based management platform; identifying power component entities in the selected images and constructing a spatial semantic graph based on the spatial distribution relationships between components; performing topological logic reasoning and feature consistency analysis on the spatial semantic graph to identify abnormal component states and determine the power logic attributes of faulty components; generating maintenance instructions based on the identified abnormal states and power logic attributes and pushing them to the terminal. This invention addresses the problems of high redundancy in original images, insufficient physical positioning accuracy leading to ambiguity in component logical identity identification, and difficulty in identifying long-tail atypical hidden dangers during power distribution network inspection.

The present application aims at the problems of excessive consumption of traditional cement limestone resources, excessive energy consumption and high carbon emission, and provides a carbonated hardened low-calcium cement and a preparation and hardening method thereof, which is a hardening method for curing low-calcium cement by CO2 carbonation. The mass percentage composition of cement raw material components is: limestone: 60-70%, sandstone or clay or silica ash: 15-25%, phosphogypsum, fluorogypsum or desulfurization gypsum: 5-25%, component A: 0.5-2%. Component A is composed of the following raw material components in mass percentage: fluorite 0-50%, barium slag: 0-50%, lithium slag 0-50%, wood ash 0-50%, industrial sodium carbonate 0-30%. The composition design of carbonated hardened cement clinker minerals is C2S: 10-90%, C5S2$: 10-90%, C$: 0-5%, C4A3$: 0-10%, etc. In the present application, the limestone required for the cement clinker is lower than that of ordinary Portland cement clinker, the calcination temperature is reduced by 200-350 DEG C than that of ordinary Portland cement clinker, and the energy consumption and carbon emission are significantly lower than those of Portland cement; the low-calcium cement is hardened by CO2 carbonation curing, which can make the cement obtain excellent mechanical properties within 2 hours.

The utility model discloses a cover type conjoined furnace for annealing thin materials, which comprises a furnace body, two heating cavities are arranged in the furnace body, a furnace seat is arranged on the bottom surface of the furnace body and at the positions of the two heating cavities, a heating inner cover extending into the heating cavities is arranged on the furnace seat, a fan is arranged in the furnace seat, a plurality of convection plates are arranged in the heating inner cover, and the convection plates are arranged in the heating inner cover. The side wall of the furnace body is provided with a plurality of heating spray guns extending into the heating cavity, the plurality of heating spray guns are communicated through an annular pipe, the top of the side wall of the furnace body is provided with a heat exchanger, and the heat exchanger is communicated with the heating cavity through a gas conveying pipe; according to the cover type connected furnace for annealing the thin material, the furnace body is provided with the two heating cavities, and the heating inner covers are arranged in the two heating cavities, so that the productivity can be kept, the stacking layer number of material coils in the heating inner covers can be reduced, and the pressure borne by the material coils located on the lower portions of the heating inner covers is reduced; and the situation that a material roll located on the lower portion of the heating inner cover is pressed too much and adheres to the tape is avoided.

This invention relates to the field of water storage tank operation and management technology, and particularly to an interactive control method and system for urban water storage tank operation and management. The method includes the following steps: acquiring the geometric structural parameters of the water storage tank; setting dynamic boundary parameters based on the geometric structural parameters; wherein the dynamic boundary parameters include a safe water storage upper limit, a recommended emptying water level, and a forced emptying water level; constructing a three-dimensional interactive visual interface containing spatiotemporal constraints based on the dynamic boundary parameters; and performing virtual execution verification in response to the input of interactive operating condition switching commands on the three-dimensional interactive visual interface. Once the virtual execution verification is successful, the equipment linkage pre-simulation sequence is converted into control commands and issued to realize the operation and management of the urban water storage tank. This invention, by constructing a three-dimensional water level dynamic boundary mapping and equipment linkage virtual pre-simulation mechanism, achieves intuitive perception of operating condition switching and water hammer safety verification, thereby solving the problems of difficulty in judging operation timing and the potential for misoperation.

The utility model discloses a rivet pressing device for processing automobile fuses, which comprises a processing table, an object carrying mechanism and a driving mechanism are arranged on the processing table, a rivet pressing mechanism is arranged on the driving mechanism, the object carrying mechanism comprises a base, an object carrying table is arranged on the base, iron blocks are fixed at two ends of the object carrying table, and a rivet pressing mechanism is arranged on the rivet pressing mechanism. The iron block is embedded in the surface of the objective table, the driving mechanism comprises a supporting seat and a servo motor fixed to the upper end face of the supporting seat, the output end of the servo motor is fixedly connected with a lead screw, an object placing seat is installed on the lead screw and arranged on a sliding rail, and a mounting table is fixed to the object placing seat; the rivet pressing mechanism comprises a positioning plate and an air cylinder fixed to the positioning plate, and a sliding plate is fixed to the output end of the air cylinder. According to the press riveting device for automobile fuse processing, press riveting operation is conducted on an automobile fuse in an inclined press riveting mode, abrasion of the objective table is reduced, and larger press riveting force is generated on the automobile fuse through interaction of the electromagnet and the iron block.

The application relates to the technical field of flue gas waste heat recovery, and discloses a rotary kiln flue gas low-temperature waste heat recovery device, which comprises a primary recovery chamber, a secondary recovery chamber and a water storage tank, a flue gas inlet pipe is fixedly installed at the left end of the outer wall of the primary recovery chamber, a flue gas connecting pipe one is fixedly installed at the right side of the upper end of the outer wall of the primary recovery chamber, the rear end of the outer wall of the flue gas connecting pipe one is fixedly connected with the front end of the outer wall of the secondary recovery chamber, the temperature of the heat-conducting aluminum sheet one directly contacting the outer wall of the S-shaped flue pipe is increased, the hot end of the thermoelectric sheet can have a constant high temperature, the heat-conducting aluminum sheet two contacting the inner wall of the water pipe one can take away the heat at the heat-conducting aluminum sheet two under the action of the water flowing in the water pipe one, and the cold end is formed, so that a temperature difference is formed between the hot end and the cold end of the thermoelectric sheet, the thermoelectric sheet can generate electricity by utilizing the temperature difference between the high and low temperatures, and the heat energy in the flue gas can be converted into electric energy.

The application relates to a multi-axis mechanical arm-based electrostatic protection test system, and relates to the field of electrostatic discharge test, which comprises a workbench, a fixing device, a discharge device, a grabbing device, a detection device and a gun head replacing device; the grabbing device moves the electronic equipment to the fixing device, and the fixing device clamps the electronic equipment; the detection device is used for detecting the electronic equipment; the discharge device comprises an electrostatic gun driving assembly and an electrostatic gun, the electrostatic gun driving assembly drives the electrostatic gun to move, and the electrostatic gun moves to the position of the electronic equipment to discharge; the gun head replacing device comprises a replacing support frame, a replacing driving piece and a plurality of gun head placing seats; when the electrostatic gun abuts against the inner wall of the gun head placing seat, the replacing driving piece drives the gun head placing seat to rotate, so that the gun head of the electrostatic gun is taken off or installed. The application has the effect of improving the detection efficiency of the electronic equipment.

The invention discloses a waste glass crushing, sorting and recycling device and method, and belongs to the technical field of glass crushing and recycling. The waste glass crushing, sorting and recycling device comprises a crusher and a screening assembly arranged at an outlet below the crusher, and further comprises a scraping plate, the cleaning assembly is arranged above the screening assembly and used for cleaning broken glass clamped and embedded in the screening holes; the driving piece penetrates through a sliding block fixed to the end of the scraping plate, so that the driving piece can drive the scraping plate to move relative to the screening assembly in the rotating process; the sliding block is connected with the lower half portion of the driving piece through a clamping assembly, and the sliding piece is connected with the upper half portion of the driving piece through a clamping assembly. Through the reverse driving design, the extrusion piece and the scraper blade can be accurately close to each other, an efficient crushing effect is formed on the clamped and embedded glass, compared with a single scraper blade cleaning mode, the pressure of the broken glass on the screening assembly can be remarkably reduced, and effective protection on the screening assembly is achieved.

The utility model provides a discharge tower for salt production, which comprises a feeder, a drying roller, a discharge tower and a heat source area, the feeder for feeding wet materials and the discharge tower for discharging dry materials are respectively arranged at the head end and the tail end of the drying roller, and the head end of the drying roller is communicated with the heat source area positioned obliquely below the drying roller; the discharging tower comprises a three-way valve, an air pipe, a discharging port, a tower body, a first air outlet and a second air outlet. Cold air and hot air in the cold air area and the hot air area are used as media, when the temperature of the tower body is high, the cold air enters the air pipe for cooling, and when the temperature of the tower body is too low, the hot air enters the air pipe for heating, so that the temperature of the tower body is maintained at 55-100 DEG C, dried edible salt particles cannot be damped, and the temperature of the edible salt particles is gradually reduced.

The application provides a kind of electric vehicle charger remote efficient metering verification method, it is related to electric vehicle charging equipment electric energy metering verification technical field, including in the charger production factory or nearby setting up charger metering verification laboratory, factory shipment fixed point verification is carried out;Charger connection device, charger detection equipment, monitoring equipment, remote operation facilities and safety facilities are arranged in the verification laboratory, and verification cloud platform is deployed in the remote operation facilities, the application sets up charger metering verification laboratory in the production factory or nearby, and adopts the virtual load verification mode that voltage source is separated from current source, simulates high voltage and large current working condition under low power condition, replaces the verification mode that traditional field needs to be configured with high-power physical load, so as to avoid the use of special detection vehicle and heavy load equipment, effectively reduces the equipment volume and construction cost, improves the equipment utilization.

The application relates to a satellite automatic orbit transfer method and device based on a chemical propulsion system. The method comprises the following steps: acquiring a current firing thruster working condition of a satellite; determining an automatic orbit transfer parameter of the satellite according to the firing thruster working condition; wherein the automatic orbit transfer parameter comprises a firing time, a firing time length, a firing attitude and a firing thruster target working condition; before the firing time, sequentially performing automatic attitude adjustment, thruster opening and bottoming operation according to the firing attitude and the firing thruster target working condition; when the firing time is reached, firing the thruster to automatically transfer the orbit of the satellite; after the firing time length is reached, performing a shutdown operation according to the firing thruster target working condition; and after the firing is completed, the satellite is automatically adjusted again to complete the automatic orbit transfer. According to the scheme, the satellite can independently transfer the orbit according to the automatic orbit transfer parameter in a non-measurement and control arc segment, and the pressure of ground measurement and control is reduced.

This utility model discloses a device for efficiently utilizing water resources by recovering high-temperature condensate to prepare demineralized water. It includes a high-temperature condensate output unit, a heat exchange and cooling unit, a demineralized water unit, and a demineralized water supply unit. The heat exchange and cooling unit includes a primary heat exchanger connected to the high-temperature condensate output unit via a pipeline, a secondary heat exchanger connected to the outlet of the primary heat exchanger via a pipeline, and a tertiary heat exchanger connected to the outlet of the secondary heat exchanger via a pipeline. The outlet of the tertiary heat exchanger is connected to the demineralized water unit via a pipeline, and the outlet of the demineralized water unit is connected to the demineralized water supply unit via a pipeline. In this application, after multi-stage efficient heat recovery treatment of the high-temperature condensate, the temperature of the high-temperature condensate is reduced to the design temperature range of 35-45℃ for the demineralized water unit. The cooled condensate is then transported to the demineralized water unit to prepare demineralized water, thus replenishing the demineralized water supply unit.

The utility model relates to a kind of mouth curling forming mechanisms of paper cup forming machine, including carousel, the carousel is equipped with at least one for paper cup is placed into recess mould, it is characterized by: the carousel top is equipped with the edge curling seat board that can be lifted, the edge curling seat board is equipped with the first pre-rolling mechanism that cup mouth edge is curled to horn shape outside to make it constitute first pre-rolled edge, the second pre-rolling mechanism that first pre-rolled edge is further curled to edge towards cup body central axis to make it constitute second pre-rolled edge and the final rolling mechanism that second pre-rolled edge is further curled to make it curling closure, the recess mould axial center can pass first pre-rolling mechanism, second pre-rolling mechanism and final rolling mechanism axial center in turn, dispense with water treatment step, avoid the problem caused by water treatment to appear.

The application discloses a kind of pneumatic directional drilling system and drilling method suitable for local water-containing soft coal seam, including directional drill bit, screw drill, conversion nipple, non-magnetic drill tool, multiple special directional drill pipes and air feeder connected in order from back to front;The screw drill includes output shaft end head connected with the directional drill bit and stator end head sleeved on one side of output shaft end head, and output shaft end head can rotate relative to the stator end head, by setting screw drill and conversion nipple, both directional drilling in water-containing soft coal seam can be guaranteed, and strong blowing process can be implemented to discharge drill cuttings and formation water in hole to outside of hole in time, keep drilling operation continuous and smooth, greatly reduce the amount of operation of pulling down drill during construction, and the comprehensive drilling efficiency can be improved by more than 20%, solve the technical problems of poor formation adaptability of prior art, and cannot realize strong blowing and cuttings discharge and rapid switching of directional drilling during directional hole construction process in local water-containing soft coal seam, resulting in low drilling efficiency.

The utility model discloses a power distribution cabinet with a cable protection structure, relates to the technical field of power distribution equipment, and provides the following scheme for solving the problems proposed in the background technology: the power distribution cabinet comprises a power distribution box, the front surface of the power distribution box is rotatably connected with a cabinet door, and the inner bottom wall of the power distribution box is fixedly connected with a protection assembly; the back surface of the distribution box is provided with a plurality of wire inlet holes, and the right side of the distribution box is fixedly connected with a sealing assembly. According to the utility model, through the arrangement of the protection assembly, during use, a cable can be guided and protected by using the guide sleeve, the internal silica gel sheath can reduce the wear of the cable at the bending part, and meanwhile, the front-back position of the guide sleeve can be changed through the slide block after the adjusting screw rod is rotated; therefore, the cable does not need to be greatly bent when electromechanical devices with different sizes are connected, so that the pressure on the surface of the cable is reduced, and the protection effect on the cable is relatively good.

The invention relates to an environment-friendly process method for improving the surface metal cleaning efficiency of a silicon wafer, and belongs to the technical field of semiconductor silicon wafer processing, and the process method comprises the following operation steps: S1, pre-cleaning and activation: placing the silicon wafer in a first cleaning tank, introducing ozone into ultrapure water, and processing in cooperation with low-frequency ultrasound; and S2, main cleaning and complexing: placing the silicon wafer subjected to pre-cleaning and activating treatment in a second cleaning tank, and treating the silicon wafer in a dilute citric acid solution in cooperation with high-frequency ultrasound. And S3, overflow rinsing: placing the silicon wafer subjected to main cleaning and complexing treatment in a third cleaning tank. And S4, drying: carrying out drying treatment on the silicon wafer subjected to the overflow rinsing treatment. Through the synergistic effect of physical stripping, chemical oxidation and complexing dissolution, under the condition that highly toxic chemicals such as hydrofluoric acid are not used, the cleanliness of metal on the surface of the silicon wafer reaches the ppt level, and the problems that traditional RCA cleaning is serious in environmental pollution and high in operation risk are effectively solved.

The utility model relates to the field of stabilizer bar, especially transverse stabilizer bar's adjustable connecting structure of four -wheel electric vehicle. The utility model discloses stabilizer bar, axle bush and pull rod, stabilizer bar is trapezoidal, and the both ends are punched into the ear piece, axle bush is covered in the middle part of stabilizer bar, and pull rod is provided with two, and is hinged in the both ends of stabilizer bar respectively, and pull rod is installed on the frame, and axle bush is connected with hydraulic device still, and the top of hydraulic device is fixed with bolt and set up on the frame. Axle bush connects hydraulic device, and is electrically connected with automobile ECU and is equipped with electric control proportional valve, can automatically or manually adjust the lateral stabilizer bar roll stiffness according to the intention of driver or road condition. When driving fiercely or high -speed driving, ECU controls electric control proportional valve to adjust hydraulic device output pressure according to sensor group feedback, and the roll stiffness is increased, and the control stability and high -speed driving safety are enhanced.

The invention provides a data compression and transmission method for electronic skin of a humanoid robot, belongs to the field of intelligent humanoid robots with bodies, and is used for solving the problems that when large-area electronic skin is applied to the humanoid robot, the data transmission amount is large, the communication rate is low, and the field environment requirement cannot be met. Through the steps of dynamic scanning and acquisition of the electronic skin based on the touch area, data preprocessing, data stroke compression, data differential coding of the non-zero reference value, feature extraction of the touch area and the like, the high compression ratio of the electronic skin terminal to the data is realized, and the data transmission form can be dynamically adjusted; rapid transmission of electronic skin data is achieved, the edge computing capacity of the electronic skin is achieved, and the sensing capacity of the robot body is improved.

The utility model discloses a water tank with constant pressure measurement function belongs to water tank technical field, aims at solving the most water outlet point of prior art is located water tank under one side of liquid level, and the position of water outlet point is fixed immovably, along with the water supply of carrying out, the liquid level in water supply water tank is constantly reduced, wherein the distance between water outlet point and liquid level will constantly reduce, lead to the water pressure of water outlet point constantly small, although the water tank usually has the water replenishing mechanism to reach the purpose of time water replenishing, but actually still can form fluctuation to the water pressure of water supply water tank, cannot realize constant pressure water supply, and the water replenishing of water tank single, every day also cannot carry out measurement statistics, thereby the actual water replenishing of subsequent management personnel cannot know water tank accurately, thereby bring the problem of influence to the judgment and overhaul of personnel. Including stainless steel water tank, the upper side of stainless steel water tank is connected with inlet pipe, and the other side below of stainless steel water tank is connected with outlet pipe.

The application provides a power centralized management device for a smart lamp pole. The power centralized management device for the smart lamp pole comprises a control box, the control box comprises a box body and a partition plate, the partition plate is fixedly arranged in the box body, a power input wire is installed on the box body, and a processing module is electrically connected to the output end of the power input wire. The power centralized management device for the smart lamp pole provided by the application realizes that the processing module divides the input main power, can provide stable power support for part of the smart lamp pole after the division, can temporarily store the power in the battery pack, can provide external charging support for the power supply connector, can effectively reduce the pressure of the power input wire after the battery pack is fully charged, can provide reorganization cooling and buffering time for the power input wire, and can provide stable use requirements for the control of the power supply.

The invention discloses an in-situ leaching liquid injection system and method for high-altitude ionic rare earth ore, and belongs to the field of rare earth hydrometallurgy. The system is composed of a liquid injection well pattern, a layered liquid injection device, a first liquid supply system, a second liquid supply system and a collection system. Exploring the thickness of an ore body weathering crust and vertical distribution of rare earth / impurities; the liquid injection hole is vertically divided into an upper layer liquid injection area (1 / 3-1 / 2 of the upper part) and a lower layer liquid injection area (1 / 2-2 / 3 of the lower part); a 1.0-1.4 wt% low-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the upper layer, and co-leaching of impurities such as aluminum and iron is reduced; 1.5-2.5 wt% of high-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the lower layer to ensure efficient leaching of rare earth; and rare earth-rich leaching liquid is collected. Compared with a traditional full-layer high-concentration process, the method has the advantages that the use amount of a leaching agent is reduced by 20-40% while the rare earth leaching rate is kept to be larger than or equal to 90%, the aluminum ion concentration of the leachate is reduced by 30-60%, the agent cost and the follow-up impurity removal load are remarkably reduced, and the method is particularly suitable for the high-altitude, low-temperature, low-air-pressure and thick-weathered crust environment.

This invention relates to the field of shock waveguide technology and discloses a spring electrode shock waveguide, comprising a slender carrier and a balloon. The space formed between the balloon and the carrier is an annular channel for fluid to enter and achieve inflation. First, the electrode in the guide tube is designed as a spring-type spiral structure and wound around the surface of the carrier, which can provide good electrical contact and make the electrode have excellent ductility, solving the problem of large stress on the electrode during the deformation of the balloon under fluid compression. Through the design of a first support mechanism and a second support mechanism, the first support mechanism is connected between two adjacent outer walls of the electrode, providing axial support force for the electrode, and the second support mechanism is connected between the inner wall of the balloon and the outer wall of the electrode, providing radial support force for the electrode. This reduces the pressure on the electrode when the internal pressure of the balloon increases and the balloon expands, further solving the stress problem of the electrode during the deformation of the balloon.

The utility model provides a kind of raffinate acid preparation acidic water-soluble fertilizer system, including stirred tank, temperature control component and shearing mechanism, the temperature control component is installed in the stirred tank;The shearing mechanism includes rotor and stator, the stator is coaxially fixed connection with the stirred tank, the rotor rotation is installed on the stirred tank and is rotationally connected with the stator;Driving device for driving the rotor rotation is installed on the stirred tank;The stator is sequentially installed with several groups of shear blades from top to bottom, the shear blade is inclinedly arranged in ladder type structure, and a plurality of filter holes are provided on the stator.The utility model can solve the shearing mechanism shearing area fixed in prior art, cannot realize the staged processing of slurry, leading to low shearing efficiency, it is difficult to avoid that slurry forms temporary flocculation after high-pressure shearing, and affects the stability of product.

The invention belongs to the technical field of moxibustion cabins, and discloses a full-automatic intelligent moxibustion cabin with a smoke purifying function, which comprises a moxibustion cabin body, a box body is fixedly mounted in the moxibustion cabin body, a supporting round block is fixedly mounted at the top of the box body, a threaded sleeve I is fixedly mounted at the bottom of the supporting round block, and a smoke purifying device is fixedly mounted at the bottom of the threaded sleeve I; a first threaded rod is movably mounted in the first threaded sleeve. Compared with a traditional moxibustion cabin, the moxibustion cabin has the advantages that the first teeth and the second teeth are matched, the height of the moxibustion box and the height of the moxibustion plate can be reasonably adjusted according to the internal temperature of the moxibustion cabin body, in this way, it can be ensured that the moxibustion temperature is appropriate, and irritation or discomfort caused by too high or too low temperature to the skin is avoided; by accurately adjusting the heights of the moxibustion box and the moxibustion plate, the moxibustion device can be better aligned to acupuncture points or treatment parts, the treatment effect is improved, and meanwhile the moxibustion box and the moxibustion plate can be flexibly adjusted in a matched mode.

The application belongs to the technical field of digitalization and intelligent application in nuclear power industry, and provides an intelligent diagnosis and compliance automatic checking system and method for maintenance regulations of a nuclear power plant, the system comprising a rule base management module, an intelligent analysis module, a rule engine module and a user interaction module, the method creating and maintaining a machine-readable rule base for checking maintenance regulations of a nuclear power plant, acquiring and analyzing a maintenance regulation file to be checked, generating a structured regulation object model, matching and evaluating the regulation object model with rules in the rule base, generating a diagnosis result set, displaying the diagnosis result set to a user, and providing interactive modification guidance.The application performs automatic and real-time compliance checking and logic diagnosis on maintenance regulations of a nuclear power plant, so as to replace most repetitive and rule-based manual review work with machine automatic checking.

The application provides a mechanical seal for a latex pump, which comprises a shaft sleeve, an outer part of the shaft sleeve is sleeved with a static ring seat, one end of the shaft sleeve is formed with a mounting step, a main seal is arranged between the mounting step and one end of an inner cavity of the static ring seat, an outer part of the other end of the shaft sleeve is sleeved with a driving ring, a secondary seal is arranged between the driving ring and the other end of the inner cavity of the static ring seat; an annular mounting seat is detachably connected to one end of the static ring seat close to a driving ring, the mounting seat is located at a radial outer part of the mounting step, a plurality of first convex teeth which are distributed in a circumferential direction and extend in a radial direction of the mounting seat are arranged on a radial inner end surface of the mounting seat, inner ends of the first convex teeth are in sliding fit with a radial outer wall of the mounting step, and medium can be cut and dispersed by the first convex teeth when the shaft sleeve rotates, the application provides a mechanical seal for a latex pump, which can cut and disperse medium before the medium contacts a sealing surface, avoids that particulate matter or viscous matter directly contacts the sealing surface, and improves sealing performance and a service life of the sealing.

This utility model provides a seat cushion structure and a shared vehicle, relating to the field of vehicle technology. The seat cushion structure includes a seat cushion assembly, a suspension, a shock absorber assembly, and an elastic protective structure. The suspension is connected to the seat cushion assembly; the shock absorber assembly is disposed between the seat cushion assembly and the suspension; and the elastic protective structure is sleeved on the shock absorber assembly. This utility model, through the cooperation of the seat cushion assembly, suspension, shock absorber assembly, and elastic protective structure, not only improves the shock absorption effect and enhances user comfort but also reduces the safety risks associated with exposed shock absorber components, resulting in better safety during use.

The utility model relates to a damping device for tower crane, include: lower casing (1), slide and connect on the slide plate (3) of lower casing (1) on, the slide plate (3) top is connected with upper pressing plate (4), upper pressing plate (4) lower part elasticity is connected with lower spring groove (7), the lower casing (1) lower part is provided with support platform (102), support platform (102) has conical support surface, lower spring groove (7) bottom is provided with conical pressure surface, and the conical support surface and conical pressure surface between be provided with damping ring (8), damping ring (8) is including multistage rubber damping mechanism that sets gradually, rubber damping mechanism all include first rubber ring (801) and first metal sheet (802) that set up, wherein first metal sheet (802) on interval be provided with a plurality of baffle that protrude into first rubber ring (801) inside, this device can effectively reduce the vibration of tower crane cab.

This utility model discloses a gas pressure regulating structure, relating to the field of gas pressure regulation technology. The utility model includes a regulating mechanism for controlling the gas intake volume and flow rate. The regulating mechanism includes a cylinder and a worm gear housing. The cylinder is hollow inside, and a housing is fitted onto its outer wall. Square boxes are installed at the center of both the front and back of the housing. This utility model uses an installation assembly: pressing a button downwards causes a cam at its bottom to rotate. When the cam rotates, it causes a hook to deflect, pulling the hook out of the rectangular hole of the insert rod. Then, moving the square cover upwards pulls out the insert rod. This allows for control of the rotation of the cam and hook via a button. When the lock is released, pulling the square cover upwards removes the cylinder. The disassembly process is relatively simple, ensuring efficient maintenance of the pressure regulator.