344results about How to "Close contact" patented technology

The invention discloses a bus duct structure and an assembly method thereof, and the bus duct structure comprises a housing which is provided with at least one installation groove. The insulating layer is attached to and covers the inner surface of the mounting groove; the insulating layer is arranged in the mounting groove, the groove opening of the mounting groove can allow the connecting row to enter or exit from the mounting groove along the depth direction of the mounting groove, the connecting row is embedded in the mounting groove through the groove opening of the mounting groove, and the connecting row is in contact with the insulating layer in an attached manner. According to the bus duct structure and the assembly method thereof provided by the invention, the assembly steps can be effectively simplified, and the temperature rise can be reduced.

This utility model discloses a die-casting mold for magnesium alloy computer parts. The mold aims to solve the problem that in existing magnesium alloy computer parts die-casting processes, the use of inclined guide posts to pull apart the core-pulling movable block in the lower mold easily leads to wear and reduces service life. The mold includes an upper mold and a lower mold. The upper surface of the lower mold has through grooves on all four sides, and a movable block is slidably disposed inside the through grooves. A core-pulling mold is fixedly connected to the inner side of the movable block. Die-casting cavities are formed between the four corners of the upper and lower molds and the core-pulling mold. This utility model fixes a fixed base with roller assemblies in the mounting groove on the movable block. When the upper and lower molds are closed, the inclined guide post is inserted into the inclined guide hole on the fixed base and positioned between two guide rollers. At this time, the guide rollers can rotate, and the inclined guide post is limited by the guide rollers on both sides, thereby reducing wear on the inclined guide post and improving its service life.

The utility model belongs to the field of chemical safety management, and discloses an alarm device for chemical safety management, which comprises a main body assembly for detection and alarm, and further comprises a base assembly for being fixedly connected with a wall, and a box shell assembly for supporting, fixing and protecting the interior is magnetically mounted on the base assembly. The main body assembly is mounted at the end of the box shell assembly; the base assembly comprises a bottom plate, a limiting connecting mechanism is arranged on the bottom face of the bottom plate, two magnets are symmetrically installed on the bottom face of the limiting connecting mechanism, and an electric connecting mechanism used for elastically compressing a communication circuit is installed in the middle of the bottom plate. The box shell assembly comprises a box shell body, a plug-in mechanism is arranged on the top face of the box shell body, and two iron sheets and two fixed electrodes are symmetrically arranged on the plug-in mechanism. According to the alarm device for chemical safety management, the magnet of the base assembly is in magnetic attraction fit with the iron sheet of the box shell assembly, and the guide structures of the limiting boss and the positioning column are matched, so that one-button type fixing and dismounting of the box shell are achieved.

The utility model relates to a quick joint, which comprises a male joint and a female joint, the female joint comprises a male cylinder, the left end of the male cylinder is provided with a first dustproof cap, the side part of the first dustproof cap is provided with a nut-shaped enclosure, the rear part of the nut-shaped enclosure is provided with a step, the rear end of the step is provided with a first abutting spring, and the first abutting spring is provided with a second abutting spring. The number of turns of the first abutting spring ranges from 3.5 to 5, the end faces of the two ends of the first abutting spring are ground into planes, the rigidity of the first abutting spring ranges from 18 N to 22 N, a butt joint female head is further arranged at the rear end of the first abutting spring, a first O-shaped ring is arranged in the butt joint female head, the butt joint female head is in threaded connection with the male connector, and a second O-shaped ring is arranged in the butt joint female head. The left end of the male connector is provided with a butt joint male head, a second O-shaped ring is arranged in the butt joint male head, and the first O-shaped ring is smaller than the second O-shaped ring. The utility model has the advantages of excellent sealing and quick butt joint.

The application provides a high-nickel ternary material modification method and a high-nickel positive electrode material with a nitrogen-oxygen coating layer, and relates to the field of lithium ion batteries. In the high-nickel ternary material, surface lattice oxygen is gradually replaced by nitrogen atoms in a high-temperature long-time calcination process in a nitrogen-oxygen mixed atmosphere, so that a nitrogen-oxygen layer is formed on the surface, which is beneficial to the delocalization of electrons, thereby endowing the material with excellent electronic conductivity; meanwhile, the presence of the nitrogen-oxygen layer inhibits the transformation of the surface layer structure into a rock salt phase structure, which is beneficial to realizing efficient ion transport. The formation of the nitrogen-oxygen layer on the surface of the high-nickel ternary material can simultaneously improve the electronic and ionic conduction of the surface of the high-nickel positive electrode material, inhibit the interface side reaction, relieve the volume change, and thereby improve the cycle stability of the battery.

The present application relates to a kind of radial strain and micro-deformation measuring device and method of oil-rich coal pyrolysis, the device includes pressure chamber, inner cavity is equipped with pressure chamber inner cylinder;Gas confining chamber is formed between the outer wall of pressure chamber inner cylinder and the inner wall of pressure chamber;Annular heating jacket, sleeve is set in the outside of pressure chamber;Displacement measurement structure is arranged in annular heating jacket one side, each displacement measurement structure corresponds one convex structure respectively, and with corresponding convex structure is connected;Stress exerting structure is arranged in the lower end of annular heating jacket other side, and is connected with gas confining chamber;Temperature sensor is connected with gas confining chamber;Axial load loading mechanism is located above pressure chamber.This application can conveniently measure the radial strain of coal rock under the condition of high temperature and loading triaxial stress, while monitoring the radial micro-deformation of coal rock, solve the difficult problem that radial deformation is difficult to measure in the stress loading process of coal rock under high temperature condition.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

The utility model belongs to the technical field of packaging bag production, and particularly relates to a packaging bag exhaust device which comprises a conveying frame. A pneumatic module is mounted in the middle of the conveying frame; a fixing frame is mounted at the output end of the pneumatic module; two connecting frames are mounted on the side wall of the conveying frame; the two connecting frames are oppositely arranged; a fixing frame is mounted in the middle of the two connecting frames; a mounting plate is mounted in the middle of the fixing frame; an exhaust sponge block is fixedly connected to the middle part of the mounting plate; a mounting assembly is arranged between the fixing frame and the mounting plate; a pressing assembly is installed in the middle of the conveying frame. The side wall of one fixing frame is fixedly connected with a connecting plate; bristles are fixedly connected to the middle of the connecting plate; a dust collection assembly is mounted in the middle of the connecting plate; by means of the structure, the exhaust sponge block can be rapidly replaced, the abraded sponge plate can be replaced in time, and the tedious steps of disassembling and assembling the exhaust sponge block through a tool are effectively reduced.

This utility model discloses a fixed-point dust removal device for clean production of bauxite, relating to the field of dust removal technology in bauxite production. It includes a dust removal chamber with a collection chamber inside. Ventilation chambers and water storage chambers are respectively located on the left and right sides of the upper end of the collection chamber. The collection chamber, water storage chamber, and ventilation chamber are separated by partitions. A central shaft is installed at the front center of the dust removal chamber. Four side support plates are arranged in a circumferential array on the outer wall of the central shaft. A fixing ring plate is installed on the outside of the four side support plates, and a sealing plate is installed between adjacent side support plates. This utility model, through a series of structures, utilizes the triple action of wind, water cleaning, and mechanical scraping during dust removal to clean stubborn dust and impurities, while preventing dust from escaping during cleaning, thus efficiently cleaning dust in specific areas.

The application discloses a preparation method of a graphene / hexagonal boron nitride heterojunction. The target substrate is subjected to cleaning treatment, and then the surface of the cleaned target substrate is changed into hydrophilicity, so that the film can be well laid on the surface of the substrate, and the wrinkles are reduced. A layer of hexagonal boron nitride is arranged on the surface of the hydrophilic target substrate. A layer of PMMA is spin-coated on the surface of the graphene film to be transferred, and then the graphene film is floated in deionized water. Under the surface force of the deionized water, the graphene film can be stretched based on the PMMA. Then, the target substrate with the surface provided with the hexagonal boron nitride is used to be combined with the graphene film with the PMMA layer spin-coated on the surface in the deionized water, so that the target substrate and the graphene film are combined flatly. Then, drying and heating are carried out at a stepped temperature, the distance between the substrate and the sample is shortened, and the crack area is reduced. Finally, through annealing treatment, not only the PMMA residue is reduced, but also the film can be more closely contacted with the substrate.

The utility model provides a walking type movable hopper for loading and unloading, and belongs to the technical field of walking type hoppers. Comprising a hollow column, a lifting column is slidably inserted into the bottom of the hollow column, a powerful suction cup is arranged at the bottom of the lifting column, transverse plates are symmetrically arranged on the lower portions of the two side walls of the lifting column, and the ends, away from the lifting column, of the tops of the transverse plates are in threaded connection with screws; the bottom of the screw rod is rotationally connected with a supporting disc arranged below the transverse plate. Rapid switching between the moving state and the fixed state can be achieved through the limiting supporting assembly, in the fixed state, the lifting column is released to the set height through the locking bolt, the powerful suction cup is firmly adsorbed to the ground and matched with the moving wheel provided with the brake pad to form double fixing, and meanwhile the hand wheel is operated to drive the screw to press the supporting disc downwards. And the non-slip mat is in close contact with the ground, so that the device can be limited and prevented from deviating and moving during loading and unloading, and the unloading effect is prevented from being influenced.

The utility model relates to a controller, a control system, electronic equipment and a vehicle. The controller comprises a shell; the circuit board assembly is arranged in the shell; the electromagnetic shielding mechanism is used for realizing electromagnetic shielding; wherein the electromagnetic shielding mechanism comprises an electromagnetic shielding piece and a supporting piece, and the supporting piece is arranged in the shell and used for connecting the electromagnetic shielding piece with the circuit board assembly. The electromagnetic shielding part is subjected to two-way pressure from the shell and the circuit board assembly, so that the electromagnetic shielding part is in tight contact with the shell, the circuit board assembly and the connector, and the electromagnetic shielding part cannot fall off after being used for a long time; the electromagnetic shielding piece which is in close contact and is not easy to fall off is formed, and the long-term stable electromagnetic shielding effect can be ensured.

The utility model discloses an auxiliary rubber diaphragm feeding mechanism, and relates to the technical field of rubber processing. Comprising a bottom plate, a round opening and a rectangular opening are formed in the bottom plate, a flange is fixedly connected to the top of the bottom plate and located above the round opening, a limiting barrel is fixedly connected to the top of the flange, a spring is fixedly connected to the inner wall of the limiting barrel, and a guide piece is fixedly connected to the end, away from the limiting barrel, of the spring; the guide sheet is arc-shaped; a driving mechanism is arranged on the bottom plate, and a feeding mechanism is arranged at the bottom of the bottom plate. During feeding, the push plate moves upwards to extrude the guide piece to enable the spring to contract, the arc-shaped guide piece is utilized to ensure that the rubber diaphragm is always located in the center of the push plate, the feeding precision of the rubber diaphragm is greatly ensured, the machining quality of the rubber diaphragm is further improved, the equipment is high in automation degree, errors caused by manual operation are effectively reduced, and the production efficiency is improved. And the production efficiency is improved, and the yield is high.

The utility model belongs to the technical field of power tool turrets, and particularly relates to a numerical control machine tool slant bed power tool turret turning and milling composite machine tool which comprises a numerical control turning and milling composite machine tool body, a power tool turret is arranged on the inner wall of the numerical control turning and milling composite machine tool body, and a motor installation groove is formed in the inner wall of the power tool turret. Servo motors are installed on the inner wall of the power tool turret, one servo motor is installed on the inner wall of the motor installation groove, a thermal shrinkage tool handle is installed at the output end of the servo motor, and a tool bit is movably connected to the inner wall of the thermal shrinkage tool handle. By arranging the thermal shrinkage cutter handle and utilizing the principle of thermal expansion and cold contraction, the cutter head is installed during heating and tightly held after cooling, vibration transmission can be reduced, the machining precision can be improved, errors can be automatically compensated, the coaxiality is ensured, the service life of the cutter head is prolonged, the surface quality is improved, the clamping force is higher, the cutter head can be effectively prevented from loosening, and the machining yield of fragile materials is improved.

The utility model relates to nitrogen seal valve technical field, concretely for a kind of high-performance stable opening and closing nitrogen seal valve, including valve body, valve cover, valve rod, valve seat, valve flap and actuating mechanism, valve rod includes upper valve rod and lower valve rod, by setting up middle cavity sealing mechanism in upper and lower valve rod connecting part, double sealing guarantee is provided for actuating mechanism, when the sliding seal of valve rod and actuating mechanism appears wear and causes sealing failure, sealing diaphragm still can guarantee sealing effect, make lower membrane chamber be in stable operation state, guarantee the normal operation of actuating mechanism;Lower spring is set at bottom cover, by the collaborative work of lower spring and upper spring, make valve rod produce more linear, more accurate displacement response to slight pressure change, to improve overall control precision, make valve operation more stable.

The invention relates to the technical field of waterproof vibrating needle processing, in particular to a forming die of a coated waterproof vibrating needle structure, which comprises a first die and a second die, the first die is provided with a first forming cavity for forming a first forming part; the second mold is provided with a second forming cavity for forming a second forming part; a first forming part is formed through a first mold, and after the formed first forming part wraps a part of the elastic needle, a first forming piece is obtained; forming by adopting a second mold to obtain a second forming part; the second forming part wraps the first forming part to obtain a waterproof vibrating needle product; according to the forming mold of the coated waterproof vibrating needle structure, the injection molding machining procedure is optimized, step-by-step forming of key parts of a product is achieved, the integrally-formed coated waterproof vibrating needle structure is obtained, the production cost is reduced, the production efficiency and the sealing reliability of the waterproof vibrating needle product are improved, and batch production is facilitated.

The invention provides a composite solid positive electrode material and a preparation method thereof, a lithium ion battery and electric equipment, and relates to the field of lithium ion batteries. The composite solid positive electrode material comprises a positive electrode material and an organic elastic sphere which are uniformly mixed, the positive electrode material comprises an inner core, a metal compound coating layer and a boride coating layer, wherein the metal compound coating layer and the boride coating layer are sequentially arranged on the surface of the inner core; the raw materials of the organic elastomeric sphere comprise a hydrocarbon derivative monomer, an alkenyl monomer, an emulsifier, an oxidant and a solvent. The organic elastic sphere solves the problem of untight interface contact caused by volume change in the charging and discharging process of the solid-state battery positive electrode material; the inner core of the organic elastic sphere has certain rigidity, and the shell has high elasticity, so that the organic elastic sphere can be used as a rigid framework support and an elastic support to always keep close contact with the surface of a positive electrode material.

This utility model discloses a testing device for quick replacement of composite electrodes, relating to the field of composite electrode technology. It includes a workbench with a detection mechanism in the center. The detection mechanism comprises a fixed plate, a test cylinder, and a limiting plate. The surface of the fixed plate is provided with circumferentially arranged fixing mechanisms, each including a clamping frame and a detection connector. A connecting rod and a sliding rod are fixedly connected to the surface of the clamping frame, and a locking block is engaged at the top of the connecting rod. This testing device facilitates quick replacement of composite electrodes by positioning and fixing the composite electrode using the fixed plate and limiting plate, testing the composite electrode using the test cylinder, improving the convenience of composite electrode testing, enhancing the stability of the electrical connection between the detection connector and the composite electrode's contact point using the connecting rod and limiting plate, and analyzing and transmitting test data from the composite electrode through the detection connector, thus improving the accuracy of composite electrode testing.

The present application relates to the technical field of coal mine conveying, and particularly relates to a mine scraper chain structure, which comprises a chain body, a mounting plate, a spring one, a spring two, a telescopic baffle, a contact plate, a threaded column, a lifting box and a telescopic plug plate, and the chain body is arranged in parallel in the left-right direction and has two; the mounting plate is placed on the two chain bodies, the height of the lifting box is adjusted, the telescopic plug plate is pulled out from both ends and passes through the eyelet in the chain body, the lifting box is adjusted upward again, the telescopic plug plate is tightly pressed on the inner upper surface of the chain body, the end of the telescopic plug plate and the mounting plate is fixed by using a bolt and a nut, quick installation is completed, the operation is convenient, the connection is stable, the fastening property is good, when conveying materials, the telescopic baffles on both sides are pushed outward by the spring two, the contact plate is tightly attached to the inner walls on both sides of the groove, the scraper body is always tightly attached to the groove bottom by the spring one, thereby effectively reducing the gap, reducing the conveying omission of the materials and improving the conveying efficiency of the device.

The utility model discloses lithium battery mixer rotary inner tube sealing structure relates to sealing structure technical field, including the inner tube body of setting in the inner wall of outer tube, the top of outer tube is provided with the sealing cover, the inner wall of outer tube is provided with the annular plate, in the utility model, through setting up annular plate in the inner wall of outer tube, and install first rotary axle sealing piece with inner tube body surface contact, can effectively prevent the dust, liquid and so on produced in the mixing process material leakage to the outside of outer tube, has guaranteed the clean and safety of mixing environment, has reduced raw material waste and environmental pollution, and first rotary axle sealing piece surface is provided with helical spring, and helical spring can provide certain elasticity, makes sealing piece always with inner tube body surface keep close contact, even in the case where sealing piece has certain abrasion, can guarantee better sealing effect, prolongs the service life of sealing piece, and the maintenance cost of equipment is reduced.

This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.

The utility model discloses a paperboard transmission device is used in packing carton processing, include: conveyer, the inside rotation of conveyer is connected with conveyer belt, the top right -hand member fixed connection of conveyer has fixed frame, auxiliary assembly, the auxiliary assembly includes screw rod. The utility model discloses, through pressing air bag can make outside air through telescopic pipe from the air inlet pipe into the inside of sleeve, when the gas in the sleeve enters the air pressure and rises, the piston rod will be subjected to the reverse thrust and make the sliding frame push the limit wheel always with the outside elastic of paperboard and fit, further can make paperboard and conveyer belt between the close contact and improve the friction, realize the purpose of stable conveying can also avoid the limit wheel and paperboard rigidly and fit, improve the protection of paperboard, and through the rotation screw rod can make it along the internal thread of fixed frame and lift, further can realize the height of adjusting limit wheel, finally realize the flexible limit of paperboard of different thickness, the effect of stable conveying.

The application relates to a rectangular furnace bottom structure in the technical field of pyrometallurgical furnace equipment, and in particular to a rectangular furnace bottom structure. The rectangular furnace bottom structure comprises, from bottom to top, a heat preservation layer, a ramming layer, a safety layer and a working layer in sequence. The lower half of the heat preservation layer is filled horizontally, the upper half of the heat preservation layer is a structure symmetrically retreating to both sides, forming an arc-shaped surface, an arc-shaped ramming layer with a high middle and a low both ends is filled above the heat preservation layer, the safety layer and the working layer are sequentially built on the ramming layer, the upper surface of the working layer is arc-shaped with a high middle and a low both ends, a molten metal copper jacket is arranged on the adjacent furnace wall of the safety layer and the working layer, and a molten metal outlet is arranged in the molten metal copper jacket. The straight surface of the furnace bottom structure is changed into an arc surface, the structural strength and stability are high, the heat preservation layer and the working layer are closely contacted, the molten body leakage is prevented, the brick body expansion can be absorbed, the construction is convenient, the cost is low, and the rectangular furnace bottom structure is suitable for furnaces of different sizes.

The application discloses a kind of production equipment with tightening function for steel wire rope flame-retardant conveyor belt, it is related to conveyor belt production technical field, the production equipment includes calender mechanism, vulcanization mechanism and winding mechanism, the side of vulcanization mechanism of winding mechanism is provided with adjusting mechanism, the detection mechanism is arranged below winding mechanism, compared with current conveyor belt production equipment, the combination of detection plate, inductive spring and piezoelectric sheet, the thickness change of conveyor belt in winding process is monitored in real time and feedback to adjusting mechanism, the tensioning degree of conveyor belt is dynamically changed by adjusting mechanism, to ensure that the tension of conveyor belt during working process is always in a stable state, detection mechanism also has the function of rectification restraint, two sets of correction blocks on detection mechanism can rectify the conveyor belt to be wound, to force constraint conveyor belt always in the center position of winding mechanism, avoid forming uneven edge phenomenon.

The utility model relates to the technical field of oral thick paste raw material processing, and discloses an oral thick paste raw material processing device which comprises a supporting frame, a processing barrel is installed in the supporting frame, a feeding port is fixedly connected to the top end of the processing barrel, a discharging port is fixedly connected to the bottom end of the processing barrel, and an access door is detachably connected to the outer portion of the discharging port. A stirring assembly is arranged in the processing barrel and used for stirring raw materials, an anti-sticking assembly is arranged in the processing barrel and used for cleaning the raw materials adhering to the inner wall, and a connecting assembly is arranged outside the processing barrel. According to the utility model, through the stirring rod driven by the motor, the rotating connecting block and the scraping plate, automatic stirring and mixing can be realized, the defects of manual stirring can be avoided, meanwhile, medicinal materials can be uniformly stirred and mixed in the decocting process, the medicine effect loss caused by local overheating or non-uniform stirring is reduced, and the production efficiency is improved. The quality of the oral thick paste is improved.

The present application provides a kind of pasting equipment and processing method of lees flavor freeze-dried food, to solve the technical problem that the paste of traditional paste work is avoided to avoid the continuous increase of air pressure in sealed paste space during paste process, and the loss of heat resources and the continuous reduction of water content in paste space material affect paste effect.The paste equipment of lees flavor freeze-dried food includes lower bucket unit and lower bucket unit.The lower bucket body is used for the accommodation of raw materials, which is heated by heating element.The piston assembly of upper bucket unit is installed in the upper bucket body.The upper bucket body and the lower bucket body are synchronously rotated around the vertical axis under the drive of the drive assembly.When the upper bucket body is attached to the top end of the lower bucket body, the upper bucket body and the lower bucket body form a sealed paste space.The piston of piston assembly is slidingly connected in the upper bucket body, and the air pressure of paste space can be adjusted.The present application also provides a processing method for paste using the aforementioned paste equipment, and the paste effect is excellent.

This utility model relates to the field of lawn laying technology, and more particularly to a lawn laying device, including a supporting base plate. A traction head is provided on one side of the supporting base plate, a fixed bracket is fixedly connected to the top surface of the supporting base plate, a movable wheel is fixedly connected to the bottom surface of the supporting base plate near the traction head, a guide roller is provided on the other side of the supporting base plate, a rolling frame is fixedly connected to the bottom surface of the supporting base plate near the guide roller, and a rolling roller is provided on the side of the rolling frame. This utility model achieves stable feeding of the lawn roll by engaging and fixing the supporting shaft with the limiting teeth. The elasticity of the limiting spring keeps the limiting roller continuously pressing against the lawn roll to prevent loosening. During the laying process, the rolling roller compacts the lawn to ensure full contact with the ground. Simultaneously, automatic spraying is achieved through the diversion pipe and nozzles to promote the rooting of new lawn roots, effectively improving laying efficiency and quality, preventing lawn rolls from loosening, and ensuring a high survival rate.

The utility model relates to the technical field of pressure grout detection, and disclose a kind of for bridge hole pressure grout pressure bleeding rate experiment's testing device, including bottom plate, and the top plate located above bottom plate, and fixedly installed between bottom plate and top plate support column, the end of top plate away from bottom plate is equipped with the mounting hole of through type, the inner surface of top plate is embedded and is installed with bleeding cylinder.This for bridge hole pressure grout pressure bleeding rate experiment's testing device, through the cooperation component of lock hook and lock catch, the quick fixed connection of connecting sleeve and bleeding cylinder is realized, and through four groups of annular distribution's lock hook and lock catch, the connecting strength between connecting sleeve and bleeding cylinder is improved, leakage can be effectively avoided in connecting place in the process of pressure experiment, and through four groups of equidistant distribution's sealing ring, the sealing between bleeding cylinder and connecting sleeve is further enhanced, effectively prevent pressure grout from connecting place under the action of pressure and seep, avoid the waste of experimental material and the pollution of experimental environment.