55results about How to "Simple material" patented technology

The utility model discloses a kind of high-pressure hydraulic pump pressure maintaining structure, belong to hydraulic pump pressure maintaining technical field.The utility model includes the first valve block and the second valve block being connected with each other, the first valve block is equipped with pressure maintaining circuit inside, the second valve block is equipped with the intercepting component for carrying out on-off to pressure maintaining circuit;The intercepting component includes conversion head and driving rod;Wherein, the conversion head has a through flow-through cavity, and one end of the flow-through cavity is connected with pressure maintaining circuit;The circumferential of the conversion head is equipped with the pressure relief hole being communicated with flow-through cavity, and the hardness of this conversion head is greater than the hardness of first valve block;The end of the driving rod extends to flow-through cavity, for the on-off control of flow-through cavity.This utility model is transferred to the port place of flow-through cavity by the setting of conversion head, can the instantaneous high pressure received at pressure maintaining circuit port place;At this time, the material of conversion head can be optimized alone, and the material of entire valve block need not be optimized.

The present application mainly relates to a kind of preparation of sulfur-rich amino acid protein CMd-copper nanoclusters and its detection mercury ion method, comprising: a) by prokaryotic expression obtains CMd protein, and the protein concentration of 5 mg / mL-25 mg / mL CMd protein solution is obtained by purification.b) CMd is reacted with reducing agent TCEP after opening protein disulfide bond.c) the protein solution after reduction is reacted with anhydrous copper sulfate, and preparation high fluorescence CMd-copper nanocluster.d) CMd-copper nanocluster is applied to detect heavy metal mercury ion.The application method can be synthesized under mild aqueous conditions by "one-step method" structure controllable, stable CMd-copper nanocluster, widens the raw material of copper nanocluster synthesized with protein as template, avoids the use of organic solvent and strong reducing agent, and reduces the cost and environmental burden brought by noble metal raw material, and also has higher selectivity to mercury ion.

This invention discloses PtoNAC028 The gene is used to regulate the ratio of pectin monomers in poplar trees. The coding region of this gene has the nucleotide sequence shown in SEQ ID NO:1. This is achieved through overexpression or silencing of the gene in poplar trees. PtoNAC028 Genes capable of increasing or decreasing the proportion of lignin monomers in poplar provide key genes for the genetic improvement of poplar processing traits. This invention also discloses a method for cultivating poplars with a high lignin monomer ratio, through overexpression of [gene name missing] in poplar trees. PtoNAC028 The gene can significantly increase the proportion of lignin monomers in poplar trees, achieving targeted regulation of monomeric lignin metabolism, which helps to rapidly cultivate new poplar varieties with excellent wood properties and fast growth.

This utility model discloses an endoscope lens that can meet different viewing angle requirements while maintaining consistent lens elements. It includes a barrel, an objective lens fixedly mounted on one side of the inner wall of the barrel, an eyepiece fixedly mounted on the other side of the inner wall of the barrel, a first convex mirror fixedly mounted on the barrel on one side of the objective lens, and a concave mirror fixedly mounted on the barrel on one side of the first convex mirror. This utility model, an endoscope lens that can meet different viewing angle requirements while maintaining consistent lens elements, designs three lenses (160°, 135°, and 105°) as multiple structures of a single lens. It modifies some air gaps to meet different angle requirements, while simultaneously pursuing different depths of field and high resolution requirements. This simplifies materials, improves efficiency, and reduces costs. The use of the same lens for three lenses with different requirements reduces the number of lens types and increases the corresponding quantity, greatly improving lens processing efficiency and reducing costs.

This utility model relates to the field of pellet mill technology, specifically disclosing a pellet mill base, including an upper bracket and a lower bracket. A support sleeve is connected to the upper end of the lower bracket, and a slidable support rod is inserted into the support sleeve. The upper end of the support rod is connected to the upper bracket. A hydraulic cylinder connects the upper and lower brackets. An adjustable-spacing support arm is inserted into the front end of the lower bracket. A caster wheel is provided at the bottom of the support arm, and rear wheels are provided on both sides of the rear end of the lower bracket. Support screws are connected to the outer side of the support arm and the rear end of the lower bracket, and support blocks are provided at the bottom of the support screws. This utility model allows the height of the pellet mill's discharge port to be adjusted according to the height of the collection container by adjusting the height of the upper bracket. The adjustable-spacing support arm allows for better positioning of the collection container, improving adaptability to collection containers of different sizes and making material collection more convenient and faster.

The application provides a gear fatigue crack propagation life calculation method and system considering random dynamic load, and the method is as follows: a local plane coordinate system is established at a crack tip, and a crack propagation equation is constructed; time-varying mesh stiffness containing a tooth root crack feature is calculated; a vibration differential equation of a gear mesh pair is constructed and solved, and dynamic meshing forces of the gear pair under different crack states are obtained; the dynamic meshing forces of the gear pair under different crack states are processed, and a load spectrum is prepared, and variable amplitude load data with multi-periodicity are obtained; the variable amplitude load data are taken as boundary conditions, crack propagation is simulated, gear fatigue crack propagation data are read from a finite element data file; stress intensity factors are calculated based on the gear fatigue crack propagation data; and fatigue crack propagation life is estimated based on the Paris formula and the stress intensity factors. The method can improve the reliability and fatigue crack propagation life of the gear, improve the safety of equipment, and reduce maintenance costs.

The utility model relates to the related technical field of nut production equipment, one embodiment of the utility model provides a nut cold header facilitating material receiving, the nut cold header comprises a machine body and a fixing plate, the fixing plate is fixed to the side surface of the machine body, a material receiving frame is arranged outside the fixing plate, and a position adjusting assembly is arranged between the material receiving frame and the fixing plate; the conveying and arranging assembly is arranged in the material receiving frame and comprises a baffle, the baffle is fixed to the inner side surface of the material receiving frame, a long groove is formed in the surface of the material receiving frame, a through hole is formed in one end of the bottom in the long groove, a bottom frame is arranged at the bottom of the material receiving frame, and a conveying belt is installed in the bottom frame. By means of the technical scheme, the technical problem that in the related technology, equipment production needs to be intermittently stopped to replace a container for collecting nuts, and the production efficiency is affected is solved.

The present disclosure relates to the field of negative electrode material, and provides a negative electrode material, preparation method thereof, and a lithium ion battery, wherein the negative electrode material include an aggregate including an active material and a carbon material; a mass percent content of the active material in the aggregate is gradually reduced from a center to a surface of the aggregate. The negative electrode material provided by the present disclosure are effective in inhibiting a volume expansion of the negative electrode material, thereby improving cycle performance of the battery.

The present application relates to the technical field of gasket processing, and particularly relates to a gasket processing method, a gasket processing device and a gasket. First, the gap size of a target installation position of a gasket is measured, and then the preset thickness and the number of layers of a unit gasket to be processed are determined according to the maximum value of the gap size along the thickness direction of the gasket. The processing parameters of each layer of the unit gasket are obtained through a control module. The unit gaskets are stacked and bonded with each other and have the preset thickness. The material is simple and can meet the processing of different gaskets. The stepped gasket is processed according to layers to fit the non-flat gap and improve the cutting efficiency. The gasket to be processed is placed on a processing platform. The cutting module moves in the vertical direction with an integer multiple of the preset thickness as a moving unit, reduces the influence of the interlayer force on the gasket processing, and is in communication connection with the control module. After receiving and cutting each layer of the unit gasket of the gasket to be processed according to the processing parameters, the gasket to be processed is peeled to obtain the required gasket. The processing procedure is simple and has low difficulty, and the gasket quality is effectively improved.

The invention discloses a construction method of a colorectal tumor model based on 3D printing, which comprises the following steps: dissolving methacrylated gelatin and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate together to obtain a mixed solution, adding colorectal cancer cells HCT-116 and human skin fibroblasts BJ into the mixed solution, and uniformly mixing to obtain bio-ink; and loading the bio-ink into a charging barrel of an extrusion type biological 3D printer for 3D printing to obtain the tumor cell-carrying gel microspheres, and culturing in vitro to obtain the tumor cell-carrying gel microspheres. According to the method, the upper limit of cell density of liquid drop biological 3D printing is broken through, stable printing of biological ink with the cell density as high as 1 * 10 < 8 > cells / mL is successfully achieved through optimization of a rheological window, the density is close to the physiological level of solid tumors, the printed tumor model can truly simulate the high compactness of the tumors and the nutrition / oxygen gradient effect caused by the high compactness of the tumors, and the tumor model has good application prospects. And an experimental platform closer to the in vivo is provided for researching the microenvironment heterogeneity in the tumor.

The utility model relates to a kind of small-range plane patching plate structure, for the patching plate between small-range gap of peripheral structure and main structure in building reconstruction, specifically including one or more fixedly connected patching plate unit, patching plate unit includes the steel sheet connected in the beam face of main structure concrete beam by bolt, steel sheet outer edge extends to with the inside side line of peripheral structure alignment, steel sheet lower part is fixed with angle steel one, angle steel one fixedly connected angle steel two, and angle steel two is connected with concrete beam by bolt.The application fills gap through steel sheet, the steel plate is reinforced by angle steel one, and the load transmission of angle steel one and steel plate is guaranteed to main structure concrete beam by angle steel two, this structure solves the problem of small-range plane patching plate between peripheral structure and main structure, and can be constructed by dry work, the mode of standard unit operation, convenient to operate and environmental protection, material is simple, construction time and construction cost can be greatly reduced.

In order to overcome the problems of lithium dendrite and iron ion dissolution in the existing high-compacted-density lithium iron phosphate battery, the application provides a lithium iron phosphate battery, comprising a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode material layer with a compacted density of 2.3-2.8g / cc, and the positive electrode material layer comprises a positive electrode active material, the positive electrode active material comprises LiFePO4; the non-aqueous electrolyte comprises a solvent, an electrolyte salt, vinylene carbonate and a compound represented by Structural formula 1; an addition amount of the compound represented by Structural formula 1 is 0.01-5% based on a total mass of the non-aqueous electrolyte being 100%. The lithium iron phosphate battery provided by the application adopts the combination of vinylene carbonate and the compound represented by Structural formula 1, which can inhibit the generation of lithium dendrites at the negative electrode interface and the dissolution of Fe at the positive electrode, and ultimately improve the high-temperature and safety performance of the High-compacted-density lithium iron phosphate battery.         A-D-B-E-C     Structural formula 1

The embodiment of the application discloses a low-profile small-size wideband omnidirectional vertical polarization slot antenna, which comprises a dielectric plate arranged on the top of a metal radiator and in contact with the metal radiator, the metal radiator is in contact with the metal layer of the dielectric plate, the side wall of the metal radiator is provided with a slot, and an omnidirectional vertical polarization radiation mode is formed through equivalent magnetic current radiation of the slot; the metal feeding probe comprises an inner conductor and an outer conductor in a coaxial structure; a circular truncated cone-shaped metal cavity is formed in the metal shell, the inner conductor is connected with the bottom of the metal shell, the antenna radiator is arranged in the metal cavity, the outer conductor penetrates through the metal radiator, and the top end is in abutting contact with the metal layer of the dielectric plate and is fixedly connected through the assembly surface of the dielectric plate and the circular truncated cone-shaped shell to form a radome. The technical scheme provided by the embodiment of the application solves the problem that the existing omnidirectional antenna form is relatively complex in structure and it is difficult to realize more functions in one structure.

Disclosed is a transparent organopolysiloxane composition consisting of a powdery silicone resin having the following general formula (1), a carboxylic acid compound or a natural oil containing the carboxylic acid compound, and an aprotic solvent. (wherein R1 each independently represents a substituted or unsubstituted divalent hydrocarbon group having 1 to 20 carbon atoms which may contain a hetero atom, R2 each independently represents a hydrogen atom, a methyl group, or an ethyl group, and a represents an integer of 2 to 70).

The DR auxiliary examination device comprises a transverse support, parallel extension plates are arranged at the two ends of the transverse support, and limiting installation mechanisms are arranged at the bottoms of the two extension plates respectively and used for being installed on an examination bed. Positioning grooves are formed in the transverse bracket and are used for fixing different positioning fulcrums of a human body when different parts of a patient lying on the examination bed are examined; a motor is arranged on the extension plate, the motor is connected with a traction rope through a transmission mechanism, the other end of the traction rope is connected with a wearable part, and the wearable part and the force applied to the examination part by the positioning groove are opposite; the transverse support and the positioning groove are made of non-developing materials. According to the utility model, while the clinical examination requirement is met, the input time cost and medical resources are reduced, and the examination can be completed more quickly and conveniently.

This utility model discloses a highly safe and easy-to-install modular water-based underfloor heating system, comprising a kang (heated platform) module and a constant-temperature heating water tank main unit. The kang module has a first heating groove and a second heating groove. A first circulation pipe is engaged and positioned inside the first heating groove, and a second circulation pipe is engaged and positioned inside the second heating groove. A first aluminum foil insulation board is positioned on the first heating groove outside the first circulation pipe. This highly safe and easy-to-install modular water-based underfloor heating system replaces traditional underfloor heating with water-based modules. It is suitable for heating small areas such as bedrooms and living rooms, is easy to install, uses simple materials, saves costs, and requires no professional installers. Users simply lay the modules according to their room size, lay the heating pipes according to the pipe layout, and then cover with a carpet to complete the installation. It is low-cost, highly adaptable, aesthetically pleasing, environmentally friendly, energy-saving, highly safe, and easy to install.

This invention discloses a CuBDC nanosheet, its preparation method, and its applications. The CuBDC nanosheet is a single-layer two-dimensional CuBDC nanosheet material; the aspect ratio of the CuBDC nanosheet is 80–400. The CuBDC nanosheet is single-layered, possessing a high aspect ratio and a large specific surface area. The preparation method is simple, the material is inexpensive and readily available, resulting in low cost and ease of mass production. The CuBDC nanosheet is suitable for gas storage, adsorption separation, heterogeneous catalysis, electrochemistry, and analytical applications.

This invention provides a colorimetric detection method for quercetin based on NH2-MIL-101-CuCo nanozymes. The method includes: preparing a first mixture by mixing NH2-MIL-101-CuCo nanozymes, TMB solution, and hydrogen peroxide solution with the sample to be tested, and a second mixture by mixing with a quercetin standard; reacting the mixture under the same reaction conditions to obtain absorbance values ​​A1 and A0 at predetermined wavelengths; determining the quercetin content in the sample based on A1 and linear regression curves of different concentrations of quercetin; the nanozyme is synthesized in one step via a hydrothermal method using copper chloride dihydrate, cobalt chloride hexahydrate, 2-aminoterephthalic acid, and sodium hydroxide. The method utilizes hydrogen bonds formed by the active hydrogen atoms in the nanozyme and the hydroxyl groups in quercetin to specifically recognize and adsorb quercetin, thus enabling the detection of quercetin.

The present application relates to a kind of emulsified rubber asphalt material and its preparation method, the emulsified rubber asphalt material includes composite colloidal particle modified asphalt and emulsified soap solution, composite colloidal particle modified asphalt in emulsified rubber asphalt material The weight ratio is 40-60%;The preparation method of the composite colloidal particle modified asphalt is: first, low mooney reclaimed rubber is prepared, then low mooney reclaimed rubber and SBS, maleic anhydride are melt blended in closed mill, and composite colloidal particle is prepared by screw extrusion granulation, then composite colloidal particle is added to matrix asphalt, and then rubber oil is added to obtain;The emulsified soap solution is composed of compound cationic emulsifier, self-emulsifying waterborne epoxy resin, stabilizer, pH regulator and deionized water.The emulsified rubber asphalt material prepared by the present application has high emulsification stability, significant high-temperature deformation resistance, low-temperature crack resistance and durability advantage.

This invention discloses a formwork-free device for high-altitude eaves panels and its construction method, comprising an eaves panel body and an H-shaped steel beam. The eaves panel body includes a transverse steel cantilever plate, a longitudinal steel partition plate, a bottom steel mold, and an edge-sealing steel mold. The transverse steel cantilever plate is connected to the H-shaped steel beam, the longitudinal steel partition plate is connected to the transverse steel cantilever plate, the bottom steel mold is connected to the bottom of the transverse steel cantilever plate and the longitudinal steel partition plate, and the edge-sealing steel mold is connected to the end of the transverse steel cantilever plate. The beneficial effects of this invention are: the formwork-free device is successfully welded before hoisting, avoiding the risks and cumbersome high-altitude operations caused by conventional use of full-span or cantilever formwork. The formwork-free device for high-altitude eaves panels requires simple materials and has low cost, and the construction method is convenient to operate. This device and its construction method effectively solve the problems of high cost and high safety risks associated with erecting full-span or cantilever formwork during the construction of high-altitude eaves panels.

The utility model discloses a kind of reinforced concrete structures of radiation protection, it is related to building material technical field.The utility model includes concrete structure main body, the concrete structure main body is composed of reinforced concrete layer, radiation protection concrete layer and ordinary concrete layer, reinforced concrete layer, radiation protection concrete layer and ordinary concrete layer are sequentially arranged from inside to outside, the inner wall of the outer layer decoration subassembly is filled with lightweight radiation protection material, the surface of the reinforced concrete layer and the surface of radiation protection concrete layer are all provided with scratch groove, the surface of the reinforced concrete layer and the surface of radiation protection concrete layer are all provided with hanging net subassembly.The utility model is through the structure design of multilayer, simultaneously optimize the material in the inside of concrete structure main body, set up radiation protection filling layer outside concrete structure main body, to further can increase the radiation protection performance of this structure, the utility model is through the setting of scratch groove and hanging net subassembly, promote the bonding force between different structure layers.

The application discloses an ice surface rescue floating plate capable of being quickly moved in a portable mode, which is composed of two groups of tail plates and middle plates, the two middle plates are connected through a soft connection one, the two middle plates are located between the two tail plates, the middle plates and the tail plates are connected through two soft connection two, and connecting columns are respectively arranged on the top of the middle plates and the tail plates close to the corners. The ice surface rescue floating plate has the following advantages: the two ends of the ice surface rescue floating plate are provided with independent rotatable disc parts, so that the rescuer can quickly move horizontally on the ice surface to rescue, and the ice surface rescue floating plate can rotate in any direction on the ice surface through the cooperation of the moving belt; meanwhile, the whole ice surface rescue floating plate is light in weight, the corresponding parts are additionally provided with anti-skid materials, the safety of rescue is ensured, the folding and storage function can be used in the non-use state to reduce the occupied space, the ice surface rescue floating plate is convenient to carry and the rescue time is reduced; and the ropes arranged around the ice surface rescue floating plate can improve the efficiency and safety of rescue.

This utility model relates to the field of deburring technology, specifically a deburring device for processing. It includes a worktable with a straight groove at its top. A support frame is connected to the top of the worktable, and inlet and outlet ports are respectively located on both sides of the support frame. A conveyor belt is rotatably mounted inside the straight groove. This utility model integrates the conveying and deburring functions by using a transmission mechanism to achieve material transport via the conveyor belt and the grinding wheel to remove burrs within the support frame, thereby improving work efficiency and simplifying the operation process. A placement plate and a receiving box are located on one side of the worktable. The receiving box is slidably mounted on the placement plate for convenient receiving and storage of the ground material. Arc-shaped through grooves are provided on both sides of the receiving box for easy handling by operators, saving manpower.

The utility model discloses a simple power distribution device for fast connection of new energy cables, which comprises a mounting bracket, a mounting plate, a cable fixing bracket, a post insulator, a rectangular bus fixing fitting and a connecting conductor, and is characterized in that the mounting bracket is fixed on the ground, the height of the mounting bracket meets the requirement of live-line distance, and the cable fixing bracket is horizontally arranged in the middle of the mounting bracket; the mounting plate is welded at the top of the mounting bracket, the surface of the mounting plate is provided with a fixing hole for mounting the post insulator, the post insulator is fixed on the top surface of the mounting plate, the rectangular bus fixing fittings are mounted at the top of the post insulator and are used for being connected with the connecting conductor, and the connecting conductor is horizontally mounted between the rectangular bus fixing fittings. Multiple new energy collection lines can be connected to the booster station in a centralized mode, materials are simple, and relevant requirements can be met under the conditions that the section of a collection line wire is too large and a cable distribution box is not suitable.

The utility model relates to a perfect grain and imperfect grain automatic sample collecting mechanism and grain imperfect grain analyser, the automatic sample collecting mechanism comprises a base, two mounting plates, two groups of material returning mechanisms, two circular turntables and two groups of rotary driving mechanisms, the two mounting plates are respectively horizontally arranged and are distributed above the base at intervals left and right; the two sets of material returning mechanisms are installed on the base and connected with the two installation plates respectively, the two sets of material returning mechanisms are used for driving the corresponding installation plates to horizontally move left and right relative to the base, the two rotary discs are rotationally installed at the upper ends of the two installation plates in a one-to-one correspondence mode respectively, and the two sets of rotary driving mechanisms are installed on the two installation plates in a one-to-one correspondence mode respectively. And the rotating discs are in transmission connection with the two rotating discs in a one-to-one correspondence mode and used for driving the rotating discs to rotate, and a plurality of material boxes are assembled on the rotating discs in the circumferential direction of the rotating discs at equal intervals. The grain receiving device has the advantages that perfect grains and imperfect grains can be conveniently received, the grains can be received in a classified mode according to the grain varieties of the perfect grains and the imperfect grains, and the materials can be returned after being received.

The present invention relates to the technical field of lithium-ion batteries, and provides a lithium iron manganese phosphate precursor, a lithium iron manganese phosphate positive electrode material and a preparation method therefor, an electrode material, an electrode, and a lithium-ion battery. The expression of the lithium iron manganese phosphate precursor is (NH4)Mn1-x-yFexMyPO4H2O / C, wherein 0.1<x≤0.6 and 0≤y≤0.04, and M is selected from at least one of Mg, Co, Ni, Cu, Zn, and Ti. The precursor has a secondary spherical particle structure formed by primary particles, and has a crystal structure of an orthorhombic system, elements in the precursor are uniformly distributed, the doped elements enter metal sites to form nanoparticles with a stable structure, and meanwhile, the surfaces of the nanoparticles are coated with carbon to form a dense spherical aggregate, the lithium iron manganese phosphate positive electrode material prepared from the precursor is uniform in carbon coating, has a dense secondary spherical morphology, is high in compaction density, can improve the electrochemical performance of the lithium-ion battery when applied to the lithium-ion battery, is high in specific capacity and good in cycle performance.

The utility model is applicable to the related technical field of transformers, and provides a copper-clad aluminum high-current output planar transformer, which comprises a magnetic core and a base embedded in the magnetic core, a coil and a PCB (printed circuit board) are further arranged in the magnetic core, and an output piece connected with the PCB is arranged on the base. The total cost of the product is 40% lower than that of a copper pin; the bottom is suspended, and the coil is directly contacted with the air to easily dissipate heat; the secondary output end adopts two rows of copper-clad aluminum pins to realize shunting, so that eddy-current loss can be effectively reduced; used materials are simple, assembly is convenient, and large product performance fluctuation caused by inconsistent materials and manual operation can be reduced to a great extent; the coil and the PCB are alternately combined for four times, so that coupling between the primary and the secondary is enhanced, and the working efficiency of a product is improved; and the output end adopts two rows of copper-clad aluminum pins, the inner row is a straight pin, the outer row is a bent pin, and large-current output is realized by adopting shunt connection.

The utility model discloses an improved positioning protection cutting device, including cutting machine (1), still include: cutting machine operating platform (2), cutting machine (1) sets up at one end of cutting machine operating platform (2), support frame (3), support frame (3) is detachably installed through connecting assembly (4) one side of cutting machine operating platform (2), mobile seat (5), mobile seat (5) is connected on support frame (3) sliding, positioning buffer (6), positioning buffer (6) is connected on mobile seat (5) sliding, for the position of positioning the workpiece (7) of cutting. The utility model simple operation, safe and reliable, can improve cutting accuracy, can effectively reduce the vibration when cutting simultaneously, promotes the stability, the precision and the security of cutting process, prolongs the service life of equipment, and improves work efficiency.

The application discloses a kind of gob-side entry retaining support structure and construction method of steeply inclined coal seam fully mechanized working face.The support structure is arranged in the transport roadway near the side of goaf, including anchoring load-bearing parts, net body gangue retaining parts, restraint reinforcement, pre-stressed locking parts and flexible sealing material;Anchoring load-bearing parts are laid in the roof and bottom corner surrounding rock, net body gangue retaining parts are hung on the exposed section of anchoring load-bearing parts and cover along the whole height of roadway, restraint reinforcement is overlaid on the outside of net body and is connected with anchoring load-bearing parts, pre-stressed locking parts are set on the end of anchoring load-bearing parts and pre-tightening force is applied to form support base surface, and flexible sealing material is sprayed on the support base surface for sealing.The construction method includes drilling anchoring, hanging net body, installing restraint reinforcement, locking pre-tightening, spraying sealing.The application realizes the integration of support structure, has good gangue retaining and sealing effect, adapts to steeply inclined coal seam working condition, is convenient to construct and can be operated synchronously with mining, effectively improves the safety and reliability of gob-side entry retaining, and reduces the cost of mining.