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

674 results about "Open mouth" patented technology

Baked meat packaging and film covering equipment

The utility model discloses preserved meat packaging and film covering equipment which comprises a box body, a plurality of carrying frames are transversely connected in the box body in a sliding mode, the two sides of each carrying frame are connected with driving mechanisms arranged in the side walls of the box body, a plurality of clamping columns are longitudinally connected between frame plates on the two sides of each carrying frame in a sliding mode, and electric heating plates are arranged on the opposite faces between the clamping columns. The outer end face of the clamping column on the outermost side is longitudinally connected with the output end of a pushing air cylinder on the carrying frame, an evacuating cover matched with the opening of the box body is arranged above the opening of the box body, and a plurality of sealing mechanisms are longitudinally arranged in the evacuating cover and located between every two adjacent carrying frames; according to the equipment, a folded thermal shrinkage film can be clamped through cooperation of the clamping columns, the thermal shrinkage film is subjected to thermal sealing to form mutually independent small bags, then the distance between the carrying frames is shrunk through the driving mechanism, the small bags are extruded open for bacon bagging, finally, the small bags are vacuumized and sealed through the closed vacuumizing cover, the labor cost in the bacon packaging process is reduced, and the production efficiency is improved.
Owner:LIUYANG HUIDU FOOD TRADING CO LTD

Device for eliminating bubbles in flowing liquid

The utility model discloses a flowing liquid bubble eliminating device which comprises a bubble eliminating box, a water inlet pipe, a water outlet pipe, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, a plurality of first liquid flow cavities and second liquid flow cavities which are communicated in sequence to form liquid flow channels for liquid to be detected to flow up and down in a reciprocating manner are arranged between the water inlet and the water outlet in the defoaming box; the guide pieces are arranged in the first liquid flow cavity and / or the second liquid flow cavity and located close to the liquid level, and the guide pieces are made of hydrophilic materials and extend in the transverse direction to increase the transverse liquid flow distance of the liquid to be measured. By arranging the guide piece, under the drainage effect of the guide piece, liquid flow can be forced to flow by a certain distance in the transverse direction, the transverse flowing distance of the liquid flow below the liquid level is increased, more floating time and time for making contact with the horizontal plane and breaking can be given to bubbles, the probability that the bubbles make contact with the liquid level is increased, and the probability that the bubbles break through the liquid level and overflow is increased; and the defoaming effect and the defoaming efficiency of the device are improved.
Owner:NANJING YIMU INTELLIGENT TECHNOLOGY CO LTD

Battery pack

The utility model provides a battery pack which comprises a box body, an installation cavity is formed in the box body, an opening communicated with the installation cavity is formed in the top of the box body, and a first convex part is formed on at least part of the peripheral edge of the opening; the bracket is arranged around the peripheral edge of the opening, a plurality of second convex parts are arranged on the bracket, and the second convex parts are connected with the first convex parts; and the first cold plate is arranged on the bracket. According to the battery pack disclosed by the utility model, the first convex part and the second convex part are arranged, so that the connection between the bracket and the box body can be facilitated, the installation efficiency of the bracket and the box body can be improved, and meanwhile, the connection strength between the bracket and the box body can be improved, so that the connection strength between the first cold plate and the box body can be ensured.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Reactor mixer assembly method

Methods of assembly of and a mixing system for use in a process bottle for mixing its contents, the mixing system including a low volume magnetically-driven mixer mounted at the bottom of the bottle. The mixer may have vanes and lower grooves, or no vanes and grooves on both upper and lower faces. The mixer has a “microsized” three-dimensional solid inanimate body to enable insertion through relatively small mouth openings at the top of conventional reactor bottles. The methods of assembly involve passing the microsized mixer through an open mouth of a process bottle and coupling the mixer with a bearing assembly at the floor of the bottle. The bearing assembly includes fixtures sealed around a hole in the floor of the bottle. A cap may be assembled to the bottle in a sterile environment to from a consumable assembly which is then enclosed in a sterile package for shipping to a customer. A variety of tube connectors to the cap may be customized for instant use by the customer.
Owner:SANISURE INC

Maxillary and mandibular devices that prevent disengagement therebetween, controller station, and methods of treating and / or diagnosing medical disorders

Mandibular repositioning devices providing downward movement as well as forward movement of the mandible have a maxillary tooth covering having a driver flange protruding laterally outward on one or both sides thereof and have a mandibular tooth covering having a protrusive flange extending cranially therefrom positioned to have a posterior side engaged with the anterior side of each driver flange. The anterior side of each driver flange has a convex curvature. The posterior side of each protrusive flange has a concave-to-convex curvature positioned to move the convex portion thereof along the convex curvature of the driver flange when the mouth opens, which also moves the mandible forward. A plateau of a preselected height, which prevents disconnect between each protrusive flange and its respective driver flange relative to a fully open mouth measurement, is present between the base of the protrusive flange and the tooth covering.
Owner:SLEEP SOLUTIONS OF TEXAS LLC

Integrated LED panel lamp

The utility model relates to the technical field of lighting lamps, in particular to an integrated light-emitting diode (LED) panel lamp, which is characterized by comprising a base plate, a light-emitting component, a lens and an outer frame, the base plate adopts an opening design, the light-emitting component is arranged in the base plate, the lens seals the opening of the base plate to shield and protect the light-emitting component, and the outer frame is arranged on the base plate. The outer frame is fixedly connected with the chassis, and the lens is fixed on the chassis; the opening of the base plate is bent towards the outer side to form the clamping part, the clamping piece clamped with the clamping part is arranged on the outer frame, when the lamp is installed, the clamping piece and the clamping part are clamped in a matched mode, the outer frame can be installed on the base plate, namely, the lens is fixed, the lamp can be assembled, the fixing operation of screwing in the prior art is reduced, and the installation efficiency is improved. And the lamp assembling procedures are reduced, the lamp assembling efficiency is improved, and the yield of the lamp is increased conveniently.
Owner:FOSHAN ELECTRICAL & LIGHTING +1

Adjustable bubble level tool

A level tool for use in bending electrical wiring conduits comprises a frame, a carrier coupled to the frame and rotatable relative to the frame through an angular range, and a bubble level carried by and rotatable with the carrier through the angular range. The frame includes a first face plate, a second face plate, and a spacer between the first and second face plates, wherein the spacer includes an open mouth arranged to allow a user to view the bubble level from above and from a side of the level tool. The first and / or second face plates may have a bubble window to enable viewing of the bubble level from the front and / or rear of the level tool and an indexing slot cooperating with an indexing element on the carrier for selectively setting a rotational angle of the bubble level at one of several predetermined angular settings.
Owner:BROWN PATRICK JAMES

Insulating film assembly for battery cell and battery cell

The battery cell is provided with a shell, the shell comprises a shell body and a top cover, at least one of two opposite ends of the shell body is provided with an opening, the top cover covers the opening, an explosion-proof valve is arranged on the top cover, the insulating film assembly comprises a first insulating film, the first insulating film comprises a body part and a shielding part, the shielding part is arranged on the body part, and the first insulating film is arranged on the shielding part. The body part wraps the peripheral wall of the shell body, the shielding part is connected with the end, close to the top cover, of the body part, and the shielding part is used for being folded towards the top cover and attached to the outer side of the anti-explosion valve. According to the insulating film assembly for the battery cell, the shell body and the anti-explosion valve can be protected, the safety performance of the battery cell is ensured, and the production cost is reduced.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Waterproof and dustproof automobile back door storage box

The waterproof and dustproof automobile back door storage box comprises a box body, a box cover and a hinge, an inner cavity of the box body is a storage space, an opening communicated with the storage space is formed in the surface of the box body, one end of the hinge is connected with the box body, and the other end of the hinge is connected with the box cover. The box cover rotates by taking the hinge as a rotation center to open or close the storage space, the box further comprises a rubber strip, the rubber strip is arranged on the box cover and located on the periphery of the corresponding storage space, and when the box cover rotates to close the storage space, the rubber strip seals a connecting gap between the box cover and the box body. According to the design, the adhesive tape is arranged on the box cover and arranged in the peripheral area of the corresponding storage space, and effective sealing of the connecting gap between the box cover and the box body is achieved. When the box cover rotates to seal the storage space, the rubber strip can be tightly attached to the edge of the box body, a good sealing effect is formed, and therefore external moisture and dust are effectively prevented from entering.
Owner:GUANGDONG WEIJIE AUTO PARTS MFG CO LTD

Coffee grinding device

The coffee grinding device comprises a shell, a rotating shaft and a driving motor, a primary grinding head is arranged in an opening in the lower portion of the shell, the rotating shaft is coaxially and rotatably arranged in the shell, a secondary grinding head matched with the primary grinding head is arranged at the lower end of the rotating shaft, the distance between the primary grinding head and the secondary grinding head is adjustable, and the driving motor drives the primary grinding head to rotate. The driving motor is used for driving the rotating shaft to rotate; a first thread is arranged on the circumferential side of the upper end of the rotating shaft in a surrounding mode, and an annular worm gear is rotationally connected to the shell. The defects that the coffee beans are finer after being ground, the contact area of the coffee beans and water is larger, and the taste is bitter are overcome; the thicker the coffee beans are ground, the contact area of the coffee beans and water is reduced, and the taste is not bitter; the device cannot adjust the crushing degree of coffee beans, so that the hobbies of various people cannot be considered. Therefore, the coffee grinding device can adjust the grinding degree of coffee beans so as to give consideration to preferences of more types of people.
Owner:ANHUI SHENGCHEN FOOD CO LTD

Wafer clamping device and horizontal electroplating equipment

The utility model discloses a wafer clamping device and horizontal electroplating equipment, and the clamping device comprises a clamping unit which comprises a clamping seat, a sealing ring, a conducting ring and a pressing part, the clamping seat forms an opening matched with a to-be-electroplated area on the bottom surface of a wafer from the bottom, and the sealing ring and the conducting ring are respectively arranged on the clamping seat; wherein the sealing ring and the conducting ring sequentially surround a to-be-plated area from inside to outside and abut against the bottom face of a wafer, and the wafer is pressed by the pressing component from top to bottom; and the driving unit comprises a lifting driving part. According to the utility model, on one hand, the sealing ring and the conductive ring are kept in a compressed state by arranging the auxiliary component, so that deviation caused by ring deformation of the sealing ring and the conductive ring is eliminated, and conductivity and sealing performance are effectively improved; on the other hand, through cooperation of the first rotation driving part, the second rotation driving part and the lifting driving part, the wafer enters the electrolyte in an inclined posture on the basis that the wafer keeps rotating around the center line of the wafer, the discharge rate of bubbles in the to-be-plated area of the wafer is effectively increased, and the electroplating quality is improved.
Owner:SEMICON WET ADVANCED TECH CO LTD

Immunoassay analyzer

The utility model provides an immunity analyzer. The immunity analyzer comprises a shell and a base, the shell is arranged on the base in a sleeving manner; the base is provided with a detection device for analyzing a reagent tube to be tested, and the detection device is movably connected with the base; a fixed frame is arranged right above the detection device, and is respectively provided with a stirring device for stirring in the reagent to be tested and a shielding constant temperature device for surrounding and shielding the reagent to be tested; the stirring device and the shielding constant temperature device are arranged in parallel; the shell is provided with an opening for placing the reagent tube to be tested, the opening is adaptively connected with a door plate, and the door plate is provided with a handle; a control main board is arranged in the shell, and the control main board is electrically connected with the detection device, the glue stick device and the shielding constant temperature device. Reagent waste is avoided, the treatment efficiency is higher, and the method is more suitable for the field of emergency treatment items and POCT.
Owner:深圳市龙华区中心医院

Unloading device with container rotating protection frame

The utility model discloses an unloading device with a container rotating protection frame. The unloading device comprises a pallet fork, a rotating accessory, a protection component and a driving component. The pallet fork is provided with a supporting fork and a connecting part; the rotary accessory drives the pallet fork to rotate; the protection component comprises a protection frame, the protection frame comprises a rectangular frame, the protection component swings between an opening position and a protection position, and the protection frame located at the opening position and the supporting forks form an opening for forking the container. The rectangular frame at the protection position abuts against the upper end face of the opening of the container, and the protection frame and the supporting forks tightly hold the container up and down. The driving component drives the protection component to swing. The protective component has the advantages that the protective frame and the supporting forks of the protective component hold the container up and down so as to fix the container; the rectangular frame of the protection component abuts against the upper end face of the opening of the container, so that the container is effectively prevented from cracking and deforming, and the container is effectively protected against damage in the rotary unloading process.
Owner:XIAMEN XIAJIN MACHINERY

Can protector and cap

Provided herein is a re-usable device that would allow for the export of, or consumption of liquid without having to remove the device from the can such as the aluminum beverage can and that would also seal the liquid inside a beverage can. A water-resistant or water-proof, insect-proof, dirt-proof synthetic cap is provided that is to be attached to the lip area of the open mouth of can or other open mouth container, such as metal, plastic or an aluminum beverage can.
Owner:MELENDEZ DAVID

Semiconductor workpiece box detection device and detection method

The invention relates to a semiconductor workpiece box detection device and a detection method. Comprising a first carrying table used for placing a box body in an opening abutting mode, and abutting between the first carrying table and an opening of a containing cavity can form sealed connection; the blowing assembly is arranged on the first carrying table, can be inserted into the containing cavity through the opening and is used for blowing gas to the inner wall of the box body; the gas conveying mechanism comprises a gas supply pipe connected with the blowing assembly, a first valve arranged on the gas supply pipe, a gas extraction pipe communicated with the accommodating cavity, a second valve arranged on the gas extraction pipe, an intercommunicating pipe communicated with the gas supply pipe and the gas extraction pipe, and a third valve arranged on the intercommunicating pipe; the first valve and the second valve are arranged between the intercommunicating pipe and the blowing assembly; and the detection mechanism is used for carrying out environment detection on the gas in the exhaust pipe. According to the technical scheme, the accuracy of environment detection is improved.
Owner:JIANGSU XINMENG SEMICON EQUIP CO LTD

An embedded stainless steel fire extinguisher cabinet

The utility model relates to ship fire -fighting system technical field, proposes a kind of embedded stainless steel fire extinguisher cabinet, including the open mouth setting stainless steel cabinet, the inner bottom wall of the open mouth side of stainless steel cabinet is hinged to connect with inner frame, limit rotation structure is also arranged between the stainless steel cabinet and inner frame to limit rotation angle, the inner side wall of the inner frame is transversely slidably connected with multiple vertical rods, the top of vertical rod is all installed with rubber pressing block, the inside bottom end of inner frame is provided with seat, the seat is all transmission connection with rubber pressing block by holding trigger structure, the side of the closed stainless steel cabinet and inner frame is provided with clamping structure. Through the above technical scheme, the problem that the installed fire extinguisher in the prior art is not coordinated with the indoor furniture arrangement, and often due to ship vibration and wallboard falling off, is not only not beautiful but also not practical.
Owner:JIANGSU ZHENJIANG SHIPYARD GROUP

Scraper assembly for photocuring 3D forming printer

A groove is formed in an installation base, the bottom of the groove is open, scraper plates are symmetrically arranged on the lower surface of the installation base and located on the two sides of the groove, an inner scraper plate is movably arranged in the installation base, and the side wall of the inner scraper plate is tightly matched with the inner wall of the groove. Guide rods are connected to the two ends of the upper surface of the inner scraper and penetrate through the upper portion of the mounting base, the top ends of the guide rods are connected with the pressing plate, first positioning holes are formed in the two ends of one side of the mounting base and located on the upper portion of the groove, and second positioning holes are formed in the two ends of the side, provided with the first positioning holes, of the inner scraper; the scraper is reasonable in structure, when the interior of the groove of the installation base needs to be cleaned, the positioning pin is taken down, the pressing plate is directly pressed, resin on the inner wall of the groove in the installation base can be scraped off through the inner scraper body, the whole scraper does not need to be disassembled, and the scraper is convenient to use. And the convenience and the cleaning efficiency are greatly improved.
Owner:NANTONG FENGYUAN MOLDING TECHNOLOGY CO LTD

Vacuum cup with detachable inner container

The vacuum cup with the detachable inner container comprises a top cover, the porcelain inner container and a barrel-shaped shell, the porcelain inner container is detachably installed in the shell in an embedded mode, and a top end opening of the porcelain inner container is sealed by the top cover in a sealed mode. An annular cup bottom bearing ring used for bearing, positioning and fixing the bottom end of the porcelain inner container is installed at the bottom end of the inner cavity of the shell. An annular port silica gel locking ring which is used for circumferential embedding and is used for limiting and fixing the upper end of the porcelain liner is arranged in an internal thread at the opening of the top of the shell, and a step surface which is nested and matched with the inner side surface of the port silica gel locking ring is arranged at the upper end of the corresponding porcelain liner along the axial direction; a plastic cover core which is in threaded connection with the opening in the end part of the porcelain inner container and is used for sealing the top end of the porcelain inner container is also nested in the top cover; the whole installation and connection structure is simple and reliable, installation is convenient, the inner container is convenient to disassemble, replace and clean, and use of a user is effectively facilitated.
Owner:邵雪梅

Eating assistance device

ActiveUS12246242B2DentistryCheek
An eating assistance device includes a curved plate and a handle. The curved plate is sized and configured to be disposed within an oral cavity of a mouth between a cheek and adjacent teeth. The curved plate is sized and configured to follow an exterior contour of the adjacent teeth along a lateral side of the mouth. The curved plate is sized and configured to span a gap between top and bottom teeth of the adjacent teeth when a jaw within the mouth is opened to retain food items within the oral cavity. The curved plate has top and bottom edges that are substantially parallel. The handle extends from the mouth plate and is disposed on an exterior of the mouth when the curved plate is disposed within the oral cavity.
Owner:SMITH LESLIE G

Storage barrel structure and beverage making machine

The utility model relates to a storage barrel structure and a beverage making machine, and belongs to the technical field of beverage making machines. A material storage barrel structure is used for a beverage making machine and comprises a material storage barrel, the material storage barrel is provided with a material storage cavity, the material storage barrel is provided with a feeding port, a discharging port and an installation opening, and the feeding port, the discharging port and the installation opening are communicated with the material storage cavity; the connecting assembly is detachably arranged on the storage barrel, at least part of the connecting assembly is matched with the mounting opening, at least part of the connecting assembly extends into the storage cavity, the part, extending into the storage cavity, of the connecting assembly is provided with a feeding groove, and the connecting assembly is provided with a through hole used for communicating the feeding groove with the storage cavity; and the feeding cover plate is arranged at the feeding hole in a covering manner. And the connecting assembly is detachably installed on the material storage barrel, so that a user can conveniently disassemble, clean and maintain the device, and cleaning dead corners are avoided. The part, extending to the storage cavity, of the connecting assembly is provided with a feeding groove and a through hole, it is guaranteed that raw materials enter the storage cavity smoothly, and raw material splashing is avoided.
Owner:NINGBO HAOJIA ELECTRICAL APPLIANCES CO LTD

Material box structure, aircraft and ground carrier

The utility model provides a workbin structure, an aircraft and a ground carrier, and relates to the technical field of aircrafts. The material box structure comprises a mounting piece and a material shell. The material shells are detachably connected with the mounting pieces, openings are formed in the tops of the material shells, and the cross sectional area of the openings is larger than that of the bottoms of the material shells, so that the at least two material shells can be stacked along the openings in the state that the material shells are not connected with the mounting pieces. The mounting piece is mounted on the flying machine body or the carrier, so that the mounting piece and the material shell are driven to move through the flying machine body or the carrier, and material transportation is facilitated; the material shell and the mounting piece are connected in a separable joint mode, so that the mounting set and the material shell can be conveniently and independently disassembled; the material shells are used for containing materials, in addition, the cross sectional area of the openings of the material shells is larger than that of the bottoms of the material shells, so that the at least two material shells can be stably stacked along the openings in the state that the material shells are not connected with the mounting pieces, the storage space is effectively utilized, and the transportation cost is reduced.
Owner:GUANGZHOU XAIRCRAFT TECH CO LTD

A range hood

A kind of range hood, comprising: first cabinet, inside hollow forms the first chamber with the bottom with open mouth;Second cabinet, can be movably inserted in first cabinet, second, first cabinet between second cabinet at least lower part is open and located in the lower side of first cabinet with the extended state of second cabinet, and second cabinet is relative to the folding state of first cabinet upward;Smoke baffle, can be movably arranged in the front side of air inlet;Power element and the transmission mechanism connected with the output end of power element, for driving second cabinet and smoke baffle move, when second cabinet moves to folding state, smoke baffle is located in the first position of first cabinet open mouth upper side, when second cabinet moves to extended state, smoke baffle is located in the second position of second cabinet air inlet upper side, the distance between second, first position is greater than the distance between the extended, folding state of second cabinet.The utility model is convenient for controlling each component lifting, and the effect of oil fume absorption is better when working.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

A viscosity control device and a roll coating device in a roll coating process

The utility model relates to a kind of viscosity control device and roll coating device in roll coating procedure, the viscosity control device is installed on roll coating device, the viscosity control device includes catcher and capillary, the roll coating device includes roll and tank, the roll is installed at the top open mouth of tank, downward capillary is installed on the bottom groove wall, internal space is communicated with capillary, catcher is installed below, the solution contained in the tank drops liquid bead by capillary, the drop frequency of the liquid bead is captured by catcher to judge the change of solution viscosity in tank. Compared with prior art, the utility model monitors solution viscosity change in roll coating process.
Owner:SHANGHAI HUAGONG AIMAR NEW MATERIAL CO LTD

Recreational vehicle waste receptacle

An RV waste receptacle includes a top layer formed of flexible, absorbent material, a middle impermeable layer having the planar dimensions of the top layer affixed to the top layer at its front, side and rear edges. A bag formed of impermeable material has an open mouth, sealed side seams and a sealed bottom seam. The bottom seam is joined to a rear edge of the middle layer. A bottom layer is joined to the middle layer forming an open pocket for the bag. The bag includes a pull tab attached to the open mouth. The invention is placed in an RV toilet and used. After use, the pull tab is used to extend the bag. A hand is inserted into the bag grasping the underside of the bottom layer and pulling it and the contents of the layers into the bag to be sealed and disposed of.
Owner:ALBALOS VICTORIA

A support device for general anesthesia oral treatment of children

The present invention discloses a support device for general anesthesia oral treatment of children, comprising a plurality of fastening straps, each fastening strap having a soft pad at one end and an arc-shaped groove at the other end of the fastening strap. The soft pad arranged at one end of the fastening strap is slidably clamped in the arc-shaped groove at one end of the adjacent fastening strap, the bottom end of the fastening strap is connected to the pad, and a clamping assembly is arranged on the fastening strap. A pair of support plates are symmetrically connected to the outer side of any fastening strap, and the two support plates are jointly connected to the support assembly; the support assembly provided in the present invention can enable younger children patients to keep their mouths open by means of external support assistance, thereby avoiding excessive occupation of the internal space of the patient's oral cavity by the internal support method. When using the device to support the patient's oral cavity, the patient is first kept in an open mouth state by a push rod, and then a bite pad is inserted into the patient's oral cavity on the non-operative side and the position of the push rod is locked synchronously.
Owner:AFFILIATED CHILDRENS HOSPITAL OF CAPITAL INST OF PEDIATRICS

Package and closure for package

A package includes a container and a closure. The container includes a container brim, a container floor spaced apart from the container brim, and a container sidewall extending between and interconnecting the container brim and the container floor. The closure is configured to couple to the container brim to close selectively an open mouth of the container defined by the container brim.
Owner:BERRY GLOBAL INC

Integrated panel anti-falling mechanism

The utility model discloses an integrated panel anti-dropping mechanism, which relates to the technical field of warmers and is applied to a panel body and a box body, the panel body is nested at an opening of the box body, a cornice edge is arranged at the edge of the opening of the box body, a plurality of hanging grooves are formed in the cornice edge, and the hanging grooves are connected with the panel body. When the external thread part of the bolt penetrates through the hanging groove to reach the back face of the cornice edge, the bolt is rotated, when the bolt rotates, the threaded hanging piece is driven by friction force to rotate together, so that the threaded hanging piece crosses the avoiding groove to abut against the box body, and then the threaded hanging piece is driven by a threaded connection structure between the external thread part and the threaded hanging piece to move downwards to clamp the box body. The panel body can be kept stable even under the action of vibration or external force, the panel body can be installed only by executing several simple steps of alignment, insertion and rotation during installation, operation is convenient, complex tools or technologies are not needed, and the connection strength between the panel body and the box body is improved while it is guaranteed that the installation steps are simplified.
Owner:ZHEJIANG DONGXIN ELECTRICAL APPLIANCE CO LTD