Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

24results about How to "Easy squeeze" patented technology

Facial postoperative exercise mouthpiece for burn patients

ActiveCN224484437Ueasy squeezeAutomatically adjust opening size
The utility model relates to exercise mouth -type device technical field discloses a kind of postoperative mouth-type device of burn patient face, including extrusion mechanism, mouth opening trainer, No. 2 bottom plate and fixed frame, the extrusion mechanism includes shell, the inside sliding joint of shell is provided with two fixed plates, two the fixed plate mutually close one side respectively fixedly set up No. 1 rack and No. 2 rack, the inside rotation of fixed frame is provided with two-way screw rod, the periphery of two-way screw rod is threadedly connected with two fixed frame, the opposite side of two the fixed frame is uniformly fixedly set up fixed column, the inside one side rotation of shell is provided with gear. In the utility model, the device when using, starting electric push rod can automatically carry out mouth opening training, it is favorable to reduce physical consumption, avoid reducing training effect, and the opening size of mouth opening trainer can be automatically adjusted by adjusting the length of electric push rod.
Owner:李苏

A borehole charge structure for mining blasting

ActiveCN224415918Ueasy squeezeImprove sealingForeign matterTEX-explosive
The utility model discloses a kind of blast hole charging structure for mining blasting, it is related to mining exploitation technical field.The utility model includes support assembly, by bottom plate and fixed frame component, fixed frame is fixedly connected in the top of bottom plate;It also includes charging assembly, by charging pipe and stop tube component, charging pipe is set to the inside of bottom plate, stop tube is set to the bottom of bottom plate.The utility model has beneficial effect for: by setting support assembly, it is convenient for staff to place and disassemble this device, to facilitate extrusion and sealing to blast hole, improve the practicability of this device, by setting charging assembly, it is convenient for staff to extrude explosive in blast hole, improve its compactness, simultaneously, it is convenient for sealing to blast hole, prevent foreign matter from entering blast hole inside.
Owner:伊春鹿鸣矿业有限公司

A mixer for epoxy resin

ActiveCN224408085Ueasy squeezeeffective squeezeEpoxyPolymer science
The utility model provides a kind of mixer for epoxy resin, it is related to mixer field, including shell, stirring subassembly, feed inlet, discharge port and bubble-removing component;Feed inlet and discharge port are communicated with the inner cavity of shell;Stirring subassembly includes stirring shaft and several blades;Blade is fixed with stirring shaft;Blade is located above bubble-removing component;The fixed part of bubble-removing component is closely attached with the side wall of inner cavity;Fixed part is equipped with cavity;The top and bottom of cavity are respectively provided with inflow and outflow, and are communicated with inner cavity;The side wall of cavity is rough, and is provided with several grooves;The extruding piece of bubble-removing component is located in cavity, and is fixed with stirring shaft;Gap is equipped between extruding piece and cavity side wall;Several elastic protruding parts are equipped on extruding piece;Elastic protruding part is attached with the side wall of cavity.The utility model can solve the problem that air may be mixed in epoxy resin during high-speed stirring of prior art, leading to the existence of bubble in the material made of epoxy floor.
Owner:JIANGSU ZHISUYUAN NEW MATERIALS CO LTD

Marine photovoltaic power generation panel splicing mounting rack

The utility model provides a kind of offshore photovoltaic power generation panel can be spliced mounting rack, it is related to mounting rack technical field, the utility model includes mounting rack main part, the side of mounting rack main part is provided with connecting device, the inside of mounting rack main part is provided with adjusting device, connecting device includes connecting plate, the side fixed connection of connecting plate and mounting rack main part, the surface of connecting plate is equipped with connecting sleeve, one end of connecting sleeve and the side fixed connection of mounting rack main part away from connecting plate, the surface fixed connection of connecting plate is equipped with rubber sleeve, the surface of rubber sleeve is equipped with recess, the inner wall of recess is provided with rubber ring, the inner wall fixed connection of rubber ring and connecting sleeve, the bottom fixed connection of mounting rack main part is close to the one end of connecting plate and is equipped with support block, when using connecting device, connecting sleeve is equipped on the surface of the fixed connecting plate of another mounting rack main part side, because mounting rack main part is fixed on floating plate.
Owner:SICHUAN ZHONGCHEN TECHNOLOGY GROUP CO LTD

An adjustable thermocouple inductor

This application relates to the technical field of sensors, and in particular to an adjustable thermocouple sensor, including leads, an inner core connector, and a probe. The inner core connector is electrically connected to the sensing end of the probe via the leads. The probe is sequentially fitted with a locking sleeve, a clamping sleeve, and a fixing sleeve. The locking sleeve and the fixing sleeve are threadedly connected, and the locking sleeve fixes the clamping sleeve to the probe by pressing the clamping sleeve. This application has the effect of improving the accuracy of detection data.
Owner:FOSHAN FEIYUE ELECTRIC HEATING TECH CO LTD

A storage tank with temperature adjusting function for sesame paste production

ActiveCN224393539Ueasy squeezeQuick RetrievalLarge containersTank wagonsCircular discBevel gear
The utility model relates to a material storage tank technical field discloses a kind of material storage tanks with temperature-adjusting function for sesame paste production, including outer tube, the outer tube outside is fixedly connected with support, the inner tube is fixedly connected in the outer tube inside, the inner tube top is provided with material taking subassembly, the outer tube inside is provided with anti-deposition subassembly;The material taking subassembly includes bevel gear one and bevel gear two, the bevel gear one middle part is fixedly connected with rotating shaft, the bevel gear two side is rotatably connected with support, and the support is fixedly connected in the inner tube top.In the utility model, by setting bevel gear one and bevel gear two, rotating rotating shaft will drive bevel gear one rotation, bevel gear one drives bevel gear two rotation, bevel gear two drives disc and cylinder together rotation by connecting rod, to make frame move, frame moves time will drive lifting rod and extruding disc together up and down movement to reach the effect of accelerating material taking.
Owner:HEFEI YANZHUANG EDIBLE OIL CO LTD

A high-efficiency hobbing cutter

ActiveCN120575874Beasy squeezeEasy to cut
This invention provides a high-efficiency hobbing cutter, belonging to the technical field of vertical shaft hobbing cutters. The high-efficiency hobbing cutter provided by this invention includes a hobbing cutter housing, a central shaft, a cutting edge, and several jacking cutter assemblies. The central shaft is rotatably disposed within the inner cavity of the hobbing cutter housing, and mounting heads are provided at both ends of the central shaft. The cutting edge is disposed on the outer circumferential surface of the hobbing cutter housing. Several jacking cutter assemblies are disposed on the outer circumferential surface of the hobbing cutter housing. Each jacking cutter assembly includes a jacking cutter cylinder, a jacking cutter head, and a jacking assembly. The jacking cutter cylinder is disposed on the outer circumferential surface of the hobbing cutter housing. The jacking cutter head is movably disposed within the jacking cutter cylinder, with its top end extending beyond the jacking cutter cylinder and higher than the cutting edge. The jacking assembly is disposed within the jacking cutter cylinder, providing jacking force to the jacking cutter head. In use, the jacking assembly provides impact force to the rock wall, causing the rock wall to begin to break, reducing the difficulty for the subsequent cutting edge to compress and shear the rock wall, thereby reducing the cutting edge breakage rate and improving drilling efficiency.
Owner:CANGZHOU GREAT DRILL

Low-temperature non-ferrous extrusion direct forming machine, forming method and production line

The present application belongs to the technical field of low-temperature non-ferrous metal extrusion forming, and particularly relates to a low-temperature non-ferrous metal extrusion direct forming machine, a forming method and a production line, which are convenient for extruding raw materials such as cutting materials, broken materials, corner materials, waste materials and broken materials into low-temperature non-ferrous metal finished products. First, the raw material variety is diversified. Second, most of the impurities on the surface of the raw material can be removed. Third, inert gas is introduced into the inner cavity of the extrusion cylinder, and the air in the inner cavity of the extrusion cylinder and the inner cavity of the forming die is discharged to prevent the metal from being oxidized. Fourth, the raw material is softened first and then extruded, and the pressure of each extrusion is reduced through multiple extrusions, thereby improving the processing reliability. Fifth, multi-stage feeding is realized, the technical problems of uneven feeding and insufficient feeding are solved, and the yield is increased. Sixth, the piston body extrudes the material to be formed in the extrusion direction L2, and the cutting edge of the scraper cuts off the softened raw material entering the material bin section from the discharge port of the feeding structure, thereby reducing the resistance received by the extrusion device. Seventh, the forming die is replaceable.
Owner:德阳宏广智能装备有限责任公司

A tunable bump shear force testing platform

ActiveCN224416626Ueasy squeezeeasy to moveElectronic packagingTest bench
The utility model relates to electronic packaging technical field, concretely relates to a kind of bump shearing force test platform of fine tuning, including test platform, the top of test platform is slidably connected with sliding support by electric slide rail, the both sides of sliding support are slidably connected with adjusting mechanism, the adjusting mechanism includes shear cutter, the shear cutter is slidably connected in the bottom of sliding support, the both sides of the outer wall of sliding support are slidably connected with telescopic block, and it is inside the sliding support that it is penetrated, the top of sliding support is equipped with warning mechanism.The utility model is through the mutual cooperation between adjusting mechanism internal parts, it is convenient to complete shear cutter height fine tuning on sliding support, through the mutual cooperation between warning mechanism internal parts, it is convenient to slightly incline when shear cutter adjusting process occurs, warning light is used to warn staff, ensure that shear cutter bottom and circuit board surface weld spot bump height level parallel.
Owner:SHANGHAI HUATIAN INTEGRATED CIRCUIT CO LTD

A magnetic ruler capable of horizontal calibration

The utility model relates to a magnetic ruler of horizontal calibration, belong to ruler technical field, including ruler body and plug -in board body, the one side of ruler body is close to the recess that is set up in two sides, the inside both sides of each recess are provided with one bearing, the opposite side of four one bearing is connected with the rotary lever, the opposite side of four one bearing is connected with two magnet body through four rotary lever, beneficial effect: through one bearing and rotary lever can let magnet body free rotation, like this can be convenient for personnel to use ruler body adsorption use on three -dimensional building article, need not personnel manual support fixed measurement, the ruler body of adsorption use is not easy to appear hand to slide, can improve the accuracy of measurement as far as possible, like this is suitable for the use of multiple scenes, improved the flexibility that ruler body used.
Owner:SIMAITE STATIONERY (HUBEI) CO LTD

Water supply pipe leakage detection device

ActiveCN224414929Ueasy squeezeEasy to find and deal with
This utility model relates to the field of water supply pipe technology and discloses a water supply pipe leak detection device, which solves the problem that water supply pipe leaks are not easily detected. It includes two pipe bodies fixed by a flange. A leak detection mechanism is located below the connection between the two pipe bodies. The leak detection mechanism includes a front bucket and a back bucket located in the middle of the inner side of the front bucket, directly below the connection between the two pipe bodies. Two guide rods are symmetrically fixedly connected between the front and back buckets. Guide rings are movably sleeved on the outer sides of each guide rod. Connecting round rods are fixedly connected to the outer sides of each guide ring. A float plate is fixedly connected between the two connecting round rods, located between the back and front buckets. This utility model facilitates the upward movement of the pressure rod to press against the pressure sensor, and can activate the alarm via a controller, thus enabling staff to promptly detect and handle leaks during inspections.
Owner:QINGDAO HENGXINGYUAN WATER SUPPLY EQUIP CO LTD

Kitchen waste oil-water separation device

ActiveCN224467589Uachieve separationeasy squeezeWaste oilOil water
This utility model belongs to the field of water treatment and environmental protection equipment, specifically a kitchen waste oil-water separation device. It includes an oil-water separation tank, on which a pressing mechanism is mounted. The pressing mechanism includes a support block, which is fixedly mounted on the side of the oil-water separation tank. A vertical block is fixedly mounted on the support block, and an adjustment port is provided on the vertical block. Guide rods are symmetrically fixedly mounted on the adjustment port, and adjustment blocks are movably mounted on the two guide rods. An extension block is fixedly mounted at the bottom of the adjustment block, located on one side of the vertical block, and a pressing block is fixedly mounted at the bottom of the extension block. The pressing block is close to the filter chamber. This kitchen waste oil-water separation device solves the problem that existing filter boxes contain a large amount of oil and water stains, and when removing the waste from the filter box, oil and water stains drip onto the ground, increasing operational difficulty and inconvenience.
Owner:ZHENGZHOU HUANRUI GREASE UTILIZATION

A trolley type resistance furnace

ActiveCN224353586Ueasy squeezeImprove sealingCharge manipulation
The utility model relates to the technical field of part processing, and disclose a trolley type resistance furnace, this trolley type resistance furnace, including resistance furnace body, be provided with mounting panel in resistance furnace body inside, resistance furnace body side portion fixedly connected with mounting bracket, resistance furnace body side portion fixedly connected with slide rail, the track is seted up on mounting panel upper surface, the transmission wheel is fixedly connected with on mounting bracket upper surface, mounting panel side portion fixedly connected with winding device, winding device output fixedly connected with connecting line, connecting line end fixedly connected with door body, the track upper surface is provided with the placing plate, the placing plate upper surface is provided with the limit component, in order to avoid equipment after processing to open difficultly door body, door body bottom and the upper surface of placing plate contact, and the door body bottom will extrude the pressing block simultaneously, make the pressing block extrusion spring shrink, let the pressing block side portion outer surface and fixed block outer surface contact, make the spring elasticity push the pressing block extrusion limit of door body.
Owner:FUJIAN SANMING JIANXIN HEAVY IND MACHINERY CO LTD

A bag folding and setting support device

ActiveCN224409875UEasy to place workEasy stacking work
The utility model relates to bag body processing technical field, and disclose a kind of bag body folding and shaping supporting device, including bottom plate, the top of the bottom plate is fixedly installed with support rod, the top of the support rod is fixedly installed with material taking table, the top of the bottom plate is fixedly installed with stacking mechanism, the inside of the stacking mechanism is provided with material blocking mechanism. Through the support table set, it is convenient to place the cloth bag conveyed after folding, by starting the first cylinder, it is convenient for support table to move downwards by proper distance, so it is convenient for the stacking work of multiple cloth bags, without manual cloth bag of staff and stacking, and it is convenient to control the number of cloth bag stacking, with support table moves to maximum position, by starting the second cylinder, it is convenient for material pushing rod to move the cloth after stacking, it is convenient for cloth to move to the top of material taking table, convenient for operator to take cloth.
Owner:江苏劲松塑料科技有限公司

A filtering equipment for washing and protecting product raw material production

ActiveCN224524107Ueasy accessEasy to filter work
The utility model relates to the field of washing and protecting product production, especially a filter equipment for washing and protecting product raw material production, including filter part, including base, the bottom fixedly connected with support leg of base, the bottom fixedly connected with liquid inlet pipe of base, the bottom fixedly connected with liquid outlet pipe of base, the top fixedly connected with cylinder cover through the hoop of base, the inside of cylinder cover is provided with pressure relief subassembly. Under the cooperation of supporting cylinder, it is convenient to position the positioning pipe to install the filter core, with the raw material entering the inside of filter core, it is convenient to filter the raw material, when the conveying strength of raw material is too big, the raw material in the filter core will push the piston to move up, thereby it is convenient for the lifting rod to extrude the stretching spring, thereby it is convenient for the raw material to enter the inside of extension pipe, it is convenient to reduce the pressure in the filter core, after the extra raw material is discharged, avoid the deformation or shaking of filter core, it is convenient for the stable raw material filtering work.
Owner:LIANSHUI NEW SOURCE BIOTECHNOLOGY CO LTD

A washing and drying line for recycling PE agricultural film

This application discloses a washing and drying line for recycling PE agricultural film, relating to the technical field of plastic recycling. It includes a pretreatment module, a main treatment module, and a dewatering device. The dewatering device includes a body with a rotating drum and a rotating shaft rotatably mounted on it. The rotating shaft is coaxially arranged inside the drum and has spiral blades for propelling the material. A drive mechanism on the body drives the drum and shaft to rotate at different speeds. The body has an inlet communicating with a separation chamber and a solid outlet communicating with the separation chamber. A water guiding chamber is provided inside the drum, and several micropores communicating with the water guiding chamber are provided on the inner wall of the drum. A drain pipe communicating with the water guiding chamber is provided on the body. A pump unit is located on the side of the drain pipe away from the water guiding chamber, capable of inflating, deflating, and pumping water. This application has the effect of reducing the moisture content of the material.
Owner:HUBEI RUILI ENVIRONMENTAL PROTECTION EQUIP

Tube distance arrangement structure of large heat exchange drying equipment

The utility model relates to heat exchange drying equipment technical field discloses a kind of tube distance arrangement structure of large-scale heat exchange drying equipment, including mounting plate one, heat exchange pipe is fixedly connected in the inside of mounting plate one, mounting plate two is fixedly connected in the outer wall of heat exchange pipe, the positioning column is fixedly connected on the upper surface of mounting plate two, the positioning hole for installing positioning column is passed through and is arranged in the inside of mounting plate one, quick-mounting component is installed on the upper surface of mounting plate two;The quick-mounting component includes plug-in rod, and the lower end of plug-in rod is fixedly connected on the upper surface of mounting plate two.In the utility model, by vertical arrangement heat exchange pipe, increase heat exchange area.Its core is modularization quick-mounting design: using positioning column and positioning hole realizes the fast accurate alignment of multiple units;Subsequently, plug-in rod is inserted into mounting plate, and the spring in its interior is automatically driven to pop out and complete locking.This design realizes the quick assembly of tool-free, greatly improves the practicability of equipment.
Owner:LIAONING TAIFENG DRYING EQUIPMENT MANUFACTURING CO LTD

A push-pull locking connector

ActiveCN224418065UGuaranteed accuracySmall insertion forceMechanical engineeringPhysics
A push-pull locking connector comprises a socket and a plug, a socket cavity is arranged in a socket shell of the socket to accommodate the plug, a plurality of elastic claws are arranged on a plug shell of the plug near a plug-in end, the elastic claws are distributed along a circumference at intervals, an avoiding portion is arranged on an inner wall of the socket cavity near the plug-in end, a diameter of the avoiding portion is greater than a maximum outer diameter of the elastic claws on the plug, one end of the avoiding portion extends to the plug-in end of the socket and is open to an end face of the plug-in end, so that the elastic claws can enter the socket cavity through the avoiding portion without being squeezed when the plug is inserted into the socket, a guide portion for squeezing the elastic claws to shrink and deform is arranged in front of the avoiding portion, and a locking groove capable of being buckled with the elastic claws is arranged in front of the guide portion. The push-pull locking connector can reduce a plug-in force and improve a plug-in feeling.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

A salt-draining rotary tillage device for saline-alkali soil improvement

The application is suitable for the technical field of soil improvement, and provides a salt discharging rotary tillage equipment for saline-alkali soil improvement, which comprises a rotary tillage support, a mounting seat, a soil crushing harrow, a harrow head, a storage box and a hydraulic motor, the mounting seat is installed on the rotary tillage support, the soil crushing harrow is installed in the middle part of the mounting seat, the harrow head is installed at the bottom of the soil crushing harrow, the storage box is installed on the side wall of the soil crushing harrow, the hydraulic motor is installed on the side wall of the storage box, and the equipment further comprises a digging assembly installed in the interior of the storage box and used for digging the soil in the shallow layer of the saline-alkali soil, and a clearing assembly arranged in the interior of the storage box and used for pushing the gravel in the groove of the saline-alkali soil to the two sides; the application has the beneficial effects that the ground on the two sides of the groove is compacted in the turning process through the partition plate, so that the soil layers on the two sides of the groove are more compacted and not easy to collapse, the time for the groove to be left after excavation can be effectively prolonged, and the frequency of the operation personnel to carry out the digging operation is reduced.
Owner:JILIN AGRICULTURAL UNIV

A prefabricated liquefied gas cylinder storage

This invention relates to the field of building technology, specifically to a prefabricated liquefied gas cylinder storage facility. The facility includes a storage body, which is assembled from multiple sets of prefabricated wall panels (Part 1 and Part 2). The prefabricated wall panel includes: a first assembly located on one side of Part 2, with a connecting piece on its outer side; a second assembly located on its outer side, with a connecting groove on its inner side; the connecting piece is used to pre-fix Part 1 and Part 2; and a moving part located inside Part 1, with a movable part inside and a positioning part fixedly connected to its outer side. The positioning part is used to fix Part 1 and Part 2. This invention, through the positioning part and positioning groove within the prefabricated liquefied gas cylinder storage facility, facilitates the fixing of Part 1 and Part 2, thus eliminating the need for screws during assembly.
Owner:HANGZHOU JINHUO INTELLIGENT TECH CO LTD

An automatic edge-folding device for lunch boxes

This utility model provides an automatic edge folding device for a lunchbox, including a mold base and an edge folding mechanism on the top of the mold base. A groove is formed on the top of the front end of the mold base. A first hydraulic rod drives a first pressure plate to descend, facilitating the compression of the cardboard at the box body position of the paper lunchbox, thus facilitating edge folding. By placing the lid of the paper lunchbox inside the groove, the first pressure plate presses down on the lid, causing the tongue edges on three sides of the lid to fold and remain vertical under the action of the groove. A horizontal hydraulic rod pushes a push plate to move inside a limiting groove, and the top of the push plate presses against the tongue edges of the lid, causing the tongue edges to fold further. The second hydraulic rod and the second pressure plate work together to press down on the tongue edges of the lid, facilitating thorough edge folding and improving the practicality of the edge folding device.
Owner:DONGGUAN LVLUO ENVIRONMENTAL PROTECTION TECH CO LTD

A kind of gear ring pressurizing shaping frock

ActiveCN224406111Ueasy squeezeEasy to compressScrew threadThreaded rod
The utility model relates to tooth ring processing technical field, concretely is a kind of tooth ring press shaping tool, including bottom plate and two-way threaded rod, the top center of bottom plate is welded and fixedly connected with channel section frame, the both sides of channel section frame top are all welded and fixedly connected with threaded rod a, the outside of threaded rod a is connected with lever crossbeam and penetrates, the top of lever crossbeam is provided with nut. Tooth ring is placed into channel section frame, then moves square key of press beam bottom and the both sides of tooth ring top contact, subsequently rotatable multiple sets of nut and threaded rod a carry out screw thread transmission, thereby lower lever crossbeam extrusion, lever crossbeam will extrusion force be transmitted to square key through press beam, thereby the tooth ring of bottom is compressed, maximum limit finishing part flatness, make product reach certain deformation, positioning mechanism can be passed through simultaneously and position tooth ring to the center of channel section frame, thereby facilitating square key to tooth ring compression.
Owner:YANTAI FENGDONG THERMAL TECH CO LTD

A protective device for a transformer housing

ActiveCN224417587Uincrease heighteasy squeezeCircular discTransformer
The utility model provides a mutual inductor shell protection device relates to mutual inductor shell protection technical field, including the protection cover main part, the bottom fixed connection of protection cover main part has the extension frame, the bottom fixed connection of extension frame has the clamping frame, the one side fixed connection of clamping frame has the support block, the one side of support block has set up first mobile slot, the inner wall movable joint of first mobile slot has the limit post, the one side of first mobile slot has the second mobile slot and has set up, this utility model, through setting up clamping frame, prolongs the height of protection cover main part, makes clamping frame can be clamped in the outer ring of mutual inductor surface disc, through setting up support block, it is convenient to set up limit post in its inside, makes limit post can be clamped in the bottom of disc, to be more convenient for the protection cover main part to separate installation auxiliary pole also can make the bottom of protection cover main part more stable, reduces the shake, through setting up first mobile slot, makes limit post move in its inside.
Owner:HUBEI TIANSHI ELECTRONIC TECH CO LTD

A bacillus class fermentation tail gas treatment device

The utility model provides a kind of bacillus class fermentation tail gas treatment device, comprising, processing component, the processing component includes box and liquid tank, the liquid tank is fixedly installed on the top of box, the right side of the liquid tank is communicated with exhaust pipe, the front side of the liquid tank is communicated with air inlet pipe, the rear side of the liquid tank is communicated with drain pipe, another end of the exhaust pipe is communicated with the right side of box, installation component, the installation component includes bidirectional motor, the bidirectional motor is fixedly installed on the bottom of box, the output end of the bidirectional motor left and right sides is all fixedly installed with screw rod, by being provided installation component, to complete the fixing work of removing peculiar smell filter screen and filter screen, when removing peculiar smell filter screen and filter screen need to be replaced when long time use, remove the extrusion to removing peculiar smell filter screen and filter screen, to facilitate its from the net slot inner cavity, the stability of removing peculiar smell filter screen and filter screen installation is improved, convenient for operator to use.
Owner:SHANDONG JIAHE ENVIRONMENTAL PROTECTION TECH CO LTD