38 results about "Cyclic compression" patented technology

The invention discloses a ternary ceramic aerogel with radiation refrigeration and heat insulation functions and a preparation method and application thereof.The ternary ceramic aerogel has the radiation refrigeration and heat insulation functions, has the extremely high solar reflectivity (98%) and infrared emissivity (98.4%), can achieve efficient daytime radiation cooling, has the extremely low heat conductivity coefficient (24.7 mW m <-1 > K <-1 >), and has the advantages of being high in heat conductivity coefficient (24.7 mW m <-1 > K <-1 >) and good in heat conductivity coefficient (24.7 mW m <-1 > K <-1 >). The material can provide an all-day thermal insulation effect, has excellent tensile strength, compression strength and bending strength, has no modulus attenuation after tens of thousands of cycles, can maintain cyclic compression strain in a temperature range of-198 DEG C to 1200 DEG C, has no mechanical strength loss, and has the characteristics of high temperature resistance and high mechanical strength; the system is suitable for meeting the temperature adjusting requirements of different scenes and harsh environments, and can be widely applied to the fields of buildings, vehicles or aerospace and the like.

The invention belongs to the technical field of product ID generation, and discloses a PnP-compatible unique EDID dynamic generation method and device, and the method comprises the steps: calculating a first binary length of a first character string; if yes, performing filling operation on the binary bit of the first character string to obtain a target character string with the binary bit of 512; expanding the 32-bit words of the first number block to obtain 32-bit words of a second number block, and performing cyclic compression of a second number round on the 32-bit words of the second number block to obtain binary variable values of the first number bits; and carrying out interception and modulo 216 operation on a binary variable value of a specified interval span in the binary variable values of the first number bits, and embedding a corresponding field of the original EDID to obtain a unique EDID of the product equipment. It is ensured that the PnPID in the EDID is globally unique, matching and installation of the corresponding drive are accurately triggered, and manual equipment distinguishing depending on a user is reduced; and the compatibility hidden danger caused by the drive matching problem when the equipment is accessed to the operating system supporting the PnP is also avoided.

A power plant includes a gas turbine engine, which includes a compressor and a turbine. The compressor includes a compressor outlet. The turbine discharges a first exhaust gas stream therefrom. A heat recovery steam generator extracts heat from the first exhaust gas stream and discharges a second exhaust gas stream therefrom. A cooler cools the second exhaust gas stream, thereby defining a cooled exhaust gas stream, and discharges the cooled exhaust gas stream. An exhaust gas recirculation line channels a first portion of the cooled exhaust gas stream towards the compressor. A recirculation compressor selectively pressurizes the first portion of the cooled exhaust gas stream for discharge to the compressor outlet.

The utility model relates to the technical field of circulating compressors, and discloses a circulating compressor protection device convenient to replace, which comprises a base, a fixing box, a machine body, a protection cover, a fixing device, a heat dissipation device, a fixing block, a connecting device, a ventilation device and a damping device, the machine body is fixedly connected to the top of the fixing box, the protective cover is fixedly connected to the side face of the machine body, the fixing device is movably connected to the side face of the protective cover, the heat dissipation device is fixedly connected to the top of the machine body, the fixing block is fixedly connected to the side face of the protective cover, and the connecting device is movably connected to the side face of the fixing block. According to the circulating compressor protection device, the fixing box is arranged, the through hole in the top of the fixing box facilitates connection of the machine body and the fixing box, the design of the arc groove, the through groove, the sliding groove and the like facilitates assembly and disassembly of the fixing device, the connecting device and other components, and therefore the maintainability and the replaceability of the circulating compressor protection device are greatly improved.

The invention discloses a disc spring high-temperature compression fatigue testing device in the field of spring testing, and the device comprises a testing machine table which comprises a testing table and supporting legs arranged at the corners of the testing table; the heating box is fixedly arranged on the test bed; the test piece fixing assembly is arranged in the heating box; the compression assembly is arranged on the test bed and penetrates through the top of the heating box, the compression assembly achieves cyclic compression on the test piece fixing assembly through a motor and a gear shifting drum structure, and the gear shifting drum structure rotates one circle to compress the test piece fixing assembly at least twice; the invention also provides a test method. The disc spring compression fatigue test device has the beneficial effects that the drum body and the compression rod are arranged, the vertical reciprocating motion of the compression rod is achieved through the guide grooves in the circumferential surface of the drum body and the guide columns on the compression rod, then the compression fatigue test of the disc spring is achieved, and compared with cam or eccentric wheel structure pressing, the compression frequency is higher, and the compression stroke is longer at the same motor rotating speed; and the disc spring is more convenient to disassemble and assemble.

The invention relates to the technical field of micro-nano fiber material preparation, and discloses a high-elastic crimped micro-nano fiber sponge and a preparation method thereof.The preparation method comprises the steps that an asymmetric airflow shearing field is constructed by adjusting an eccentric coaxial spray head, spinning solution jet flow is induced to generate high-frequency spiral whipping, and micro crimped fibers are formed; meanwhile, pulse hot airflow generated by an air cushion receiving table is used for carrying out suspension lifting, in-situ heat setting and vertical disturbance on deposited fibers, and an isotropic three-dimensional porous network with a Z-axis physical interlocking structure is constructed. The volume density of the prepared sponge is only 3-30 kg / m < 3 >, the porosity is as high as 90%-99%, the rebound rate is kept at 95% or above after 1000 times of cyclic compression under 60% strain, the problems that a compact film is easily formed, the interlayer binding force is weak and the fatigue resistance is poor in a traditional spinning technology are effectively solved, and the sponge has the advantages of being simple in process equipment, wide in raw material adaptability and the like.

The invention provides a modeling and simulation method for a pressure linear isothermal process in a pressure building and energy storage stage of an energy storage container. The modeling and simulation method comprises the following steps: establishing a pressure-time mathematical model in the container in an energy storage process of a hydraulic compressed air system; an initial pressure building and energy storage stage is divided into four sub-steps, and multi-cycle compression and transfer of gas are achieved by alternately using two acting containers; based on six idealized assumptions (including an isothermal process, an ideal gas state equation and the like), a thermodynamic law is combined to derive functions of pressure and gas volume changing along with time; and finally, a pressure-time change curve is obtained through simulation calculation. According to the method, the dynamic characteristics of the energy storage process can be accurately described, the dynamic relation between physical quantities can be revealed, a theoretical basis is provided for system working condition analysis, parameter matching and optimization design, meanwhile, a maximum energy storage capacity mathematical model under ideal conditions is established by simplifying coupling factors, and the method has important engineering application value.

This invention discloses a refrigeration cycle method with liquid refrigerant compression, relating to the fields of refrigeration and gas liquefaction. The method includes a liquid tank, a liquid compression pump fixedly connected to one side of the liquid tank, and a main heat exchanger fixedly connected to the side of the liquid compression pump away from the liquid tank. The main heat exchanger is connected to an expander unit, a circulating gas compressor unit, and the liquid tank. The circulating gas compressor unit includes a circulating compressor and a circulating compression cooler. A cold box is provided outside the liquid tank, the liquid compression pump, the main heat exchanger, and the first and second expansion ends of the expander unit. This invention adds a liquid compression process to the refrigeration cycle, increasing the refrigerant pressure in both the liquid and gaseous states. Based on thermodynamics, a new refrigeration cycle method is created, reducing energy consumption during circulating compressed gaseous refrigerant, while simultaneously increasing energy recovery and utilization in multiple ways, improving the coefficient of performance (COP), and thus achieving the goal of reducing the total energy consumption of the refrigeration cycle.

The invention relates to a high-energy-efficiency compact type triangular circulating compressor which comprises a cylinder body. The controller is mounted on one side of the first end of the cylinder body; the rear cover is mounted on one side of the second end of the cylinder body; the container mechanism comprises a special-shaped cavity and a sealing plate, the wall face of the cylinder body is concaved inwards to form the special-shaped cavity, and the sealing plate is welded to the outside of the special-shaped cavity in a covering mode; the flow guide pipe is used for communicating the container mechanism with the rear cover and comprises a first spherical joint in sealed connection with the first reflux inlet of the container mechanism and a second spherical joint in sealed connection with the second reflux inlet of the rear cover; the functional element is mounted at the top of the cylinder body, and a preset gap is formed between the functional element and the top wall of the cylinder body. The container mechanism and the cylinder body are integrally designed, the container mechanism and the rear cover are flexibly connected through the flow guide pipe in ball joint, the total size and the installation difficulty are reduced, thermal isolation is achieved through overhead treatment of functional elements at the top of the cylinder body, and the energy efficiency is improved.

Disclosed is a forced external circulation compression or expansion device intended for pseudo-isothermal transformations. The invention relates to a device that reduces the increases or decreases in temperature of the fluids (3) during these thermodynamic transformations. It consists of a fluid-tight cylinder (1), a mobile piston (2), of elongate shape free of rotational symmetries, performing the compression or expansion, a gaseous or supercritical fluid (3) undergoing this transformation, and two orifices, namely one (11) for discharging and one (10) for admitting the fluid (3). Outside the cylinder (1), the device includes a heat exchanger (4), pipes (6) and a fan (5). In the case of liquid piston, a pump or a hydraulic expander (8) ensures the displacement of the hydraulic liquid (9) via a hydraulic orifice (14). The device may include mobile, fluid-impermeable physical partitions (4), and external thermal reserves (7). The device improves the thermodynamic performance of compressors, heat pumps, ORCs, energy storage and liquefaction units.

The invention of cyclic compaction systems represents a significant advancement in the field of metal smoothing and polishing, particularly for complex geometries and irregular surfaces. This innovative approach involves assemblies, systems, and methods that utilize a cyclic compressing mechanism combined with ion transport dry electrolytes. This mechanism facilitates the compaction of free solid bodies, enhancing the electrical current across the surface being polished. Cyclic compaction systems are particularly effective for polishing challenging-shaped samples such as gears, inner channels, punches and concave surfaces as they enable precise control over the polishing process. Various configurations of these systems can be adapted to meet specific requirements, ensuring optimal results based on the unique characteristics of the workpieces involved. By adjusting parameters such as particle layer thickness, pump suction force, rotational frequencies, and electrolyte composition, the systems can achieve significant improvements in surface quality and reduction in roughness values.

Controllers, system and methods for vapor cycle compressor speed management. A system having a compressor, a condenser, an expansion valve and an evaporator with a circulating refrigerant or refrigerant is managed. A compressor controller uses expansion valve position, a mass flow estimate, or a mass flow measurement to determine desired compressor speed.

The utility model discloses an automatic pressure stabilizing device of a hydrogen circulation compressor, which comprises a support plate fixedly connected to the rear side of an automatic pressure stabilizer, the top of the support plate is fixedly connected with a trepanning positioning plate, the rear side of the trepanning positioning plate is provided with a round hole, the top of the trepanning positioning plate is communicated with a threaded pipe, and the threaded pipe is connected with the support plate. According to the utility model, the round head is screwed to drive the threaded nail to rotate, and under the action of the threaded pipe, the threaded nail pushes the downward pressing limiting piece to slide downwards and press a connecting line downwards, so that the connecting line is connected with the threaded pipe, and the threaded pipe is screwed to drive the threaded nail to rotate. The connecting line can be supported through the cooperation of the push supporting piece and the spring, so that the connecting line and the wiring end of the automatic voltage stabilizer can be reinforced, and the purpose that the connecting line and the automatic voltage stabilizer are prevented from falling off due to shaking of the hydrogen circulating compressor is avoided.

This invention discloses an optimization method for mixed refrigerants in the cryogenic separation of coke oven gas, belonging to the field of chemical process engineering technology. A five-element mixed refrigerant refrigeration simulation model is established for the process of producing LNG and co-producing hydrogen from cryogenic separation of coke oven gas. The molar flow rates of each refrigerant component are used as optimization variables, and minimizing the cyclic compression work is the objective function. Constraints include the minimum temperature difference of the heat exchanger, the logarithmic mean temperature difference, and the refrigerant outlet temperature in the cold box. A genetic algorithm is used to perform a global search on the refrigerant flow composition to obtain an approximate optimal solution. Then, using this solution as the center, a composite method is used to achieve local fine-tuning optimization, ultimately outputting the optimal refrigerant ratio that satisfies the constraints. This invention overcomes the low efficiency problem of traditional empirical manual optimization methods, combining the advantages of global search and local convergence, effectively reducing process energy consumption, and has significant energy-saving and engineering application value.

This invention relates to the field of air distillation technology, specifically disclosing a method for optimizing the entire air separation process based on DCS collaborative control. This invention utilizes DCS for system self-checking and status reset; optimizes air compression, precooling, and purification control; coordinates the start-up of the circulating compressor and expander to establish a high-pressure air flow path and generate initial cooling capacity; performs adaptive cooling control of the fractionation column and analyzes the cooling endpoint; coordinates the loading of refrigeration capacity and air volume; and, upon determining the initial establishment of distillation conditions, implements closed-loop purity control and automatic product delivery control, along with adaptive collaborative optimization across all operating conditions. Based on DCS, it enables automated analysis and control of the entire process, significantly reducing reliance on manual labor, improving control efficiency, effectively avoiding operational errors, and enabling collaborative control throughout the process, reducing mutual interference during adjustment and control, and preventing large fluctuations in operating conditions.

A device for recovering variable low-temperature gas includes a low temperature stabilizing system, a compression system, an expansion refrigeration system, and a heat exchange system, which are connected to each other by pipelines, where the low temperature stabilizing system is composed of a liquid storage unit, a liquid delivery unit, a liquid jet gasification mixing unit, and a control unit, for regulating the temperature of low-temperature gas; a liquid outlet channel of the liquid storage unit is connected to a liquid inlet channel of the liquid delivery unit, a liquid outlet channel of the liquid delivery unit is connected to a liquid inlet channel of the liquid jet gasification mixing unit, and the compression system is composed of a raw material compressor and a circulating compressor; and a gas outlet channel of the raw material compressor is connected to a gas inlet channel of the circulating compressor.

The invention discloses a deep-sea high-pressure-resistant copper-nickel-tin alloy and a low-temperature preparation method thereof, and belongs to the technical field of non-ferrous metal alloys, and the alloy comprises the following components in percentage by mass: 68-72% of Cu, 18-22% of Ni, 5-8% of Sn and the balance of at least one element of Fe, Zn and Mg; the average grain size is 50-100 micrometers, the tensile strength is larger than or equal to 850 MPa, the ductility is larger than or equal to 12%, the number of cyclic compression times under the deep sea pressure of 1000 MPa is larger than or equal to 50, and the residual deformation is smaller than or equal to 3%. According to the preparation method, through step-by-step vacuum melting, batch-by-batch addition of microelements and controllable cooling, the problems that in traditional high-temperature melting, element burning loss is serious, and crystal grains are coarse are solved, and synergistic improvement of strength and toughness is achieved.

The invention relates to an elliptical side wall pass design method for controlling the ovality of a pipe based on stress-strain, which comprises the following steps of: inputting the outer diameter Dk and the wall thickness Sk of a pipe blank, the outer diameter Dj and the wall thickness Sj of a finished pipe, a roll gap SP, the length L of a deformation area, a pass opening angle alpha and an initial feeding amount t, and calculating a single-side initial opening value FCx of a pass side wall; a cyclic compression experiment is conducted on the pipe material, the initial opening value FCx is corrected according to stress-strain data of the pipe material, and the opening value Fx of the side wall of the hole pattern is calculated; meanwhile, necessary parameters of an oval side wall hole type opening are calculated; and finally, the maximum pipe feeding amount tmax is determined according to the critical point O of the elliptic curve. According to the stress-strain parameter characteristics of metal deformation, the pass opening is designed, stable rolling of the pipe is achieved, meanwhile, the ovality of the cold-rolled pipe in the rolling process can be controlled through uniform deformation of metal, the yield of the pipe is increased, and the production cost is reduced.

This application discloses a method and apparatus for controlling a material packaging device to package materials. The method includes: acquiring a preset maximum extension length and a preset minimum retraction length of an actuator during extension and retraction; determining the total number of compression cycles required by the actuator based on the material to be packaged; determining the change in length of the actuator each time it compresses the material; determining the target extension length and target retraction length of the actuator each time it compresses the material; controlling the material packaging device to start, and controlling the actuator to cyclically compress the material to be packaged based on the total number of compression cycles, the target extension length of the actuator each time it compresses the material, and the target retraction length, thereby completing the packaging of the material, reducing material spillage, making the compression more thorough, improving the compression efficiency, and resulting in better packaging effect.

This invention discloses an ultralight porous hydrogel based on the salting-out effect and its preparation method. The ultralight porous hydrogel based on the salting-out effect has the following structural formula: [Structure formula would be inserted here]. This invention utilizes hydrogen generated by the in-situ redox reaction between gallium-based liquid metal (LM) and an aqueous medium to drive the rapid foaming of the system to form a porous structure. Combined with hydrophobic association induced by the salting-out effect, and under the multiple physicochemical crosslinking effects of dynamic borate ester bonds, metal ion coordination bonds, and hydrogen bonds, an LMCNF porous hydrogel with high strength, high toughness, and high conductivity is prepared. It exhibits excellent mechanical strength; high electrical conductivity; sensitive, stable, and reversible resistance response; a high strain coefficient (GF up to 1.68); and a wide operating range; and excellent cyclic compression stability and fatigue resistance.

The present invention discloses a method and device for detecting the low-temperature operation reliability of a boil-off gas compressor, comprising: a closed low-temperature operation test device for a boil-off gas compressor, comprising a compressor to be detected, a vent valve, a temperature control valve, a first regulating valve, a mixer, a second regulating valve, a compressed medium supply storage tank, and a third regulating valve; the compressor inputs a low-temperature, low-pressure compressed medium into the compressor to be detected for compression, and discharges a high-temperature, high-pressure compressed medium; the high-temperature, high-pressure compressed medium is divided into a vented compressed medium and a compressed medium to be processed; the vented compressed medium is vented through the vent valve, and the compressed medium to be processed is sequentially supplied with, cooled, and depressurized through the temperature control valve, the mixer, and the compressed medium supply storage tank; and the compressed medium after cooling and depressurization is input into the compressor to be detected for cyclic compression. During each compression process, whether the compressor operation is reliable is judged based on real-time compression properties and real-time operating status.

This invention relates to the field of cryogenic compression gloves, specifically a cryogenic compression glove and its method of use. Through the coordinated operation of a surrounding pressure base, a clustered pipe, a pressure control cylinder, a bidirectional output cylinder, and a dot-matrix pressing head, it achieves both precise cyclic compression and dot-matrix massage functions. A drive motor drives a rotating connecting base, causing the internal gear and inner piston cylinder to rotate synchronously. The internal gear meshes with an internal gear ring to generate its own rotation, driving the piston rod to periodically pump air in and out. Through the intermittent alignment of the cover groove and four air outlet slots, four airflow paths are alternately output. Four sets of buffer airbags are respectively connected to the air outlet slots, independently delivering gas through the clustered pipe to the four sets of surrounding airbags outside the cooling layer, ensuring that gas does not cross-flow between the top, bottom, and sides of the palm, achieving synchronous and balanced compression.

The invention discloses a preparation method of a high-performance friction brake carbon source elastic graphite material. The preparation method comprises the steps that S1, raw materials are mixed to obtain a mixed material, the raw materials comprise elastic graphite, an elastic reinforcing agent, a resin binder and calcium sulfate whiskers, and the elastic graphite is formed by mixing crystalline flake graphite and porous petroleum coke; s2, performing cyclic compression on the mixed material in a mode of increasing pressure from zero to preset pressure by utilizing isostatic pressing equipment to obtain a green body; and S3, carrying out heat treatment on the green body to obtain the high-performance friction brake carbon source elastic graphite material. The problems that in the prior art, a graphite-based friction material is low in compression resilience rate, high in wear rate and poor in stability, and braking safety under the extreme working condition is difficult to guarantee can be solved.

The invention discloses a reinforced polymer plate with high compression resistance and a preparation method thereof. According to the enhanced polymer plate, synergetic modified polymer matrix resin is used as a main body, an organic small molecule reinforcing agent, inorganic filler and a processing aid are introduced, and the synergetic modified polymer matrix resin is obtained through in-situ oxidation-complexation synergetic modification of polyamide-6, dopamine and ferric ions. A stable bearing structure is formed in the base body; the small organic molecule reinforcing agent is ellagic acid. The reinforced polymer plate is prepared through melt mixing, shear dispersion and molding treatment. Compared with the prior art, the compressive strength, the structural stability and the cyclic compressive property of the polymer plate are remarkably improved under the condition that a complex additive system is not needed, and the polymer plate has a good engineering application prospect.

The utility model provides a novel system for efficiently carrying out heat-work conversion by using liquid ammonia / water as a circulating working medium, low-grade sensible heat can be recovered, latent heat is recovered by using an ammonia compressor to compress and heat the circulating working medium to gasify a heat source, and the heat-work or thermoelectric conversion efficiency is greatly improved. According to the utility model, the liquefied latent heat of the working medium is effectively utilized as an internal heat source for circulating gasification, so that the energy consumption and the working medium circulating quantity can be greatly reduced, greater economic and social environmental protection benefits can be created, and energy conservation and emission reduction are greatly realized.

The application provides a variable cycle compression system test matching characteristic modeling method, comprising: establishing an aerodynamic performance surface domain characteristic map of the variable cycle compression system, wherein the horizontal coordinate of the aerodynamic performance surface domain characteristic map is the conversion flow of the variable cycle compression system, and the vertical coordinate is the bypass ratio or the bypass non-dimensional back pressure; extracting a key element curve in the aerodynamic performance surface domain characteristic map; determining a bypass ratio or a bypass non-dimensional back pressure range to be analyzed in the aerodynamic performance surface domain characteristic map; extracting several compressor or fan aerodynamic performance characteristic curves from the stall point to the surge point when the bypass ratio or the bypass non-dimensional back pressure is unchanged along the fixed condition of the characteristic parameter in the bypass ratio or the bypass non-dimensional back pressure range; extracting the working point characteristic parameter, the surge point characteristic parameter and the surge margin of each compressor or fan aerodynamic performance characteristic curve; and respectively establishing the change curves of the working point characteristic parameter, the surge point characteristic parameter and the surge margin with the bypass ratio or the bypass non-dimensional back pressure, and fitting.

The invention relates to the field of thermal management materials, in particular to a method for preparing a high-thermal-conductivity graphene foam material through a lamination method. Soaking the graphene oxide thin film in an alkaline solution, then taking out the graphene oxide thin film, stacking the soaked graphene oxide thin film along the thickness direction, uniformly applying pressure in the direction vertical to the surface of the laminated film, and keeping for a period of time, so that all film layers are fully attached to obtain a graphene oxide thick film; and placing the laminated graphene oxide thick film in a mold for low-temperature thermal reduction and high-temperature graphitization to obtain the graphene foam material with the thickness consistent with the limited thickness of the mold. The high-thermal-conductivity graphene foam material has good compressibility and rebound resilience, is not layered or broken under the conditions of cyclic compression, high-low temperature thermal shock and high-low air pressure circulation, can bear heat conduction of large heat flow, has good mechanical damping and buffering characteristics, and can be used for preparing a high-thermal-conductivity graphene foam material. And the application requirements of high-reliability interface heat transfer, soaking, heat expansion and heat dissipation of a high-power heating device can be met.

Methods, systems, and apparatus for logical reverse computing and circular compression and decompression. In one aspect, a method for compressing a classical binary data input includes obtaining a classical binary data input; performing classical operations on the classical binary data input to obtain metadata for the classical binary data input, the metadata comprising statistical operators, wherein the classical operations are based on the ensemble interpretation of quantum mechanics; applying swap gates to the metadata to compress the metadata, wherein the swap gates swap data as a one-way function and application of the swap gates is defined by values of the statistical operators; and providing the compressed metadata as a compressed classical binary data input.

The invention discloses a ceramic aerogel fabric as well as a preparation method and application thereof. The preparation method comprises the following steps: respectively providing cerium sol, zirconium sol and silica sol; mixing the cerium sol, the zirconium sol and the silica sol to obtain a precursor sizing material; the precursor sizing material is subjected to electrostatic spinning, twisting, calcining and weaving, and the ceramic aerogel fabric is obtained. According to the ceramic aerogel fabric, the fiber diameter is 1-3 microns, the yarn diameter is 0.5-1.5 cm, the density is 2-10 mg / cm < 3 >, the heat conductivity is 25-26 mW m <-1 > K <-1 >, the mechanical strength is high, the energy storage modulus is not attenuated after 50000 times of 2% strain cyclic stretching, the ceramic aerogel fabric can bear the weight of 10000 times of the ceramic aerogel fabric, cyclic compression strain can be kept under the extreme working condition of-198-1200 DEG C, mechanical strength loss is avoided, the original appearance can be completely recovered, and the ceramic aerogel fabric is suitable for being used in the field of thermal engineering. The problems that traditional ceramic aerogel is high in brittleness, low in mechanical strength and poor in shape adaptability are effectively solved.

The utility model discloses a sanitation car shock absorber belongs to shock attenuation technical field, aiming at traditional sanitation car violent vibration, operation is complicated, wear and tear is serious and lacks solid -liquid separation etc. problem, has designed multilevel collaborative structure. Its core includes the car body with the car that can be separated, both sides buffer assembly supports the car and leaves the clearance to avoid rigid contact, and cooperation car door rotary installation and lock pin realize convenient opening and closing and driving safety. In the optimization structure, the side plate buffer cavity's support plate and the ball will slide friction be converted into rolling friction, and the hydraulic oil and the sealing tape enhance the buffering, and the bottom plate bottom cavity forms the hydraulic cycle through the oil pipe and the buffer cavity, and the compression elastic component further promotes the shock attenuation performance, and the ball embedding design guarantees stability and flexibility. The shock absorber shock attenuation effect is remarkable, and the operation is efficient, and reduces the wear and tear.