67results about How to "Simple style" patented technology

The invention discloses a lifting method for large-scale tower equipment, comprising the following steps of: 1) welding two connecting lifting lug plates and a bottom lifting lug plate on the base of the equipment, wherein the two connecting lifting lug plates are respectively arranged at two sides of the base of the equipment, and the bottom lifting lug plate is arranged between the two connecting lifting lug plates; a pipe clamp lifting structure is fixed at the top of the equipment and comprises a pipe clamp fastened on an equipment tower cylinder, and the pipe clamp is connected with two top lifting lug plates by a ring plate; the two top lifting lug plates are respectively arranged at two sides of the equipment tower cylinder, are in parallel with the equipment tower cylinder, and are respectively opposite to the two connecting lifting lug plates; and tensioning steel wire ropes are arranged between the connecting lifting lug plates and the top lifting lug plates, which are opposite to each other; 2) horizontally lifting equipment by two lifters; 3) lifting the top of the equipment by one lifter; and 4) lifting the equipment to a preset position. The method is safer, more efficient, and more convenient to operate, and the lifting auxiliary materials and the preset time and cost can be saved, so that the lifting method has high economical efficiency and practical applicability.

The invention discloses a double-saw slot sawing machine comprising a water inlet tube (2), a water inlet rubber (3), a sand suction tube (1) and a sand suction rubber tube (4), wherein the water inlet rubber (3) respectively supplies water to two groups of saw blades, and the sand suction rubber tube (4) adsorbs sand to two groups of saw blades. A diving reduction box (10) is positioned in the middle of the slot sawing machine; an eccentric shaft is installed below the diving reduction box and is provided with an upper sealed axle sleeve (18) and a lower sealed axle sleeve (5); two axle sleeves are respectively connected with a left connecting rod (7) and a right connecting rod (6), wherein the connecting rod (7) is hinged with the middle of a swing arm (8), and the connecting rod (6) is hinged with the upper end of a swing arm (9); a drill point (15) capable of rotating from left to right is positioned on the top center of the slot sawing machine between a shifting fork and two shifting needles; two triangle tool rests (16) and (17) are respectively positioned on the left and the right of the lower end of the slot sawing machine; inclined saw blades (12) are evenly distributed according to certain length on the bottom of the tool rest; a water spray nozzle (11) is positioned between each two saw blades. The invention is a special machine tool for building underground impervious walls.

The invention discloses an embedded connection structure of an enclosure wall and a medium plate for a cover and excavation top-down method as well as a construction method of the embedded connection structure. The embedded connection structure comprises the medium plate, an envelope enclosure continuous wall cast around a foundation pit and a main body structure side wall arranged between the medium plate and the envelope enclosure continuous wall, wherein a circle of continuous wall groove is formed in the inner side surface of the envelope enclosure continuous wall, and a medium plate tenon is arranged on the side surface of the medium plate and embedded into the continuous wall groove. According to the embedded connection structure of the medium plate tenon and the continuous wall groove, self-weight load of the medium plate and construction load on the medium plate are transferred to a foundation through the envelope enclosure continuous wall, and a temporary vertical medium plate bracing at the edge of the main body structure side wall is not required to be built, so that the construction cost is reduced, and the construction period is shortened; meanwhile, the main body structure side wall in the embedded connection structure of the medium plate tenon and the continuous wall groove can adopt concrete self-waterproofing and completely-coated outer waterproofing, the waterproof quality is reliable, and the waterproof effect is good; and the embedded structure connection device of the medium plate tenon and the continuous wall groove is simple in form and convenient to construct.

The invention discloses a robot vision locating method based on round road sign imaging analysis, belonging to the technical field of robot vision location. The robot vision locating method is characterized by comprising the following steps of: designing and placing a circular road sign; identifying the circular road sign, wherein the step of identifying the circular road sign comprises the three procedures of fitting edges with specific colors, fitting RANSAC (Random Sampling Consensus) ellipse and checking the sign; and finally, locating a mobile robot. The robot vision locating method has the advantages of location completion by using only one road sign, simple road sign mode, short detection process, capability of being used in outdoor light conditions and simpleness and rapidness in location.

The invention relates to the technical field of medical appliances, in particular to a manufacturing method of a safe transfusion system based on a bubbling point pressure principle. The method of the invention is based on the bubbling point pressure principle, a liquor filtering medium which can block air from crossing a liquor filtering membrane to enter the pipeline of the transfusion system is selected, and the safety performance of automatically stopping the transfusion of the liquor by using the characteristics of the liquor filtering medium to prevent the air from entering the pipeline when the transfusion system is empty is achieved. On the basis, an exhaust tube penetrating into the inner chamber of a drop bucket is arranged in the drop bucket, and the exhaust tube is mainly characterized in that a filtering medium which exhausts air but does not discharge the liquor is arranged at the penetrating end of the exhaust tube, so that the transfusion system combined with the bubbling point principle can safely realize automatic exhaust truly, and achieve the effects of efficient and safe automatic exhaust and air separation.

A drainage tube fixing assembly which is used for supporting and fixing a drainage tube and a body surface fixing component are connected and the flip-type structure which can be opened and locked is combined with the integrated design of a tube imbedding opening and a screwing ring, thus the drainage tube is easy to imbed without pressing peripheral muscle of the wound, the drainage tube is prevented from bending and winding and the wound can be observed and nursed at any time.

The invention discloses tomato meat paste and a preparation method thereof. The tomato meat paste comprises the following raw materials in parts by weight: 25-40 parts of fresh meat, 40-60 parts of tomatoes, 40-60 parts of tomato paste, 20-30 parts of onion, 6-10 parts of vegetable oil, 1-3 parts of black pepper powder, 2-5 parts of salt, 6-10 parts of white granulated sugar and 10-15 parts of minced garlic. The preparation method comprises steps of: taking the raw materials, preprocessing the raw materials, processing the raw materials and sterilizing the obtained product. The prepared tomato meat paste is high in nutritive value, unique in flavor, convenient to prepare, short in production time and easy to popularize.

The invention relates to a production process for beef hot pepper, particularly belonging to the technology of food production. The process steps comprise selecting intact and full dried peppers, gingers and garlic, cleaning the dried hot peppers, the gingers and the garlic, and crushing the dried hot peppers, the gingers and the garlic for standby; selecting 10000g of beef, cleaning and cutting the beef into shreds, then blending materials, and frying for standby; cooking colza oil in a pot (controlling the oil temperature to be 210 DEG C-230 DEG C); adding gingers and the garlic, and frying for 1-2 minutes; adding the hot peppers, and frying for 15 minutes, adding the fried beef shreds, adding fermented soya beans, monosodium glutamate, essence of chicken, spices, peppers, table salt and white sugar, frying uniformly, taking the mixture out of the pot, conducting sterile filling, covering, labeling, spraying codes, binning and finally obtaining the finished product. According to the production process, the materials are easy to obtain and special, the operation is simple and convenient, the original nutritive values in the beef are reserved, and the nutritive values of the beef hot pepper are increased, so that the beef hot pepper is one food with unique flavor.

The invention discloses a novel microwave oven. A plug is connected to a jack in the rear side of the oven bottom of the novel microwave oven. The oven bottom is round and is internally provided with a control box and a lower-arranged magnetron. A hearth support lower end support is connected with the oven bottom through a fixing part. A hearth support upper support internally contains a wave stirrer. The upper portion of the hearth support upper support is connected with an interaction panel fixed frame through a fastener. A movable dinner plate is placed in a hearth support and is clamped on a clamping groove of the oven bottom. The interaction panel fixed frame is provided with an interaction panel. The interaction panel is provided with a shift knob. The two ends of a hearth support front side opening are each provided with a double-door fixed plate. Double glass doors are installed at the hearth support front side opening. The overall novel microwave oven is a transitionally smooth circular truncated cone, and maximum utilization of space can be achieved. A touch screen is placed on the upper portion, a traditional operation interface is subverted, and operation is convenient. The occupied space can also be reduced furthest through a side face sliding type door opening mode, the hearth is internally provided with the dinner plate capable of being taken out, and the conditions that tableware is too hot, thereby being inconvenient to take are avoided.

An installing bracket is configured to be assembled to head support rods of a vehicle seat for installing an electronic device. The installing bracket includes a first locking plate and a second locking plate. The first locking plate includes a first locking portion and a first joint portion having first concaves disposed on a first side of the first joint portion. The second locking plate includes a second locking portion and a second joint portion having second concaves disposed on a second side of the second joint portion. The first locking portion is stacked on the second locking portion and locked to each other. The electronic device is locked to the first locking portion and the second locking portion. The first concaves joint with the respective second concaves to define a plurality of assembly holes for the head support rods to penetrate through.

The invention relates to a partially-balanced hydraulic lifting type ship lift and belongs to the field of navigable buildings for water conservancy and hydropower projects. The partially-balanced hydraulic lifting type ship lift comprises main lifting cylinders, horizontal doors, anti-colliding beams, a supporting beam, a ship lift chamber located between two tower columns, multiple sets of counterweight systems, locking devices and abutting guide devices. The two ends of the ship lift chamber are each provided with the anti-colliding beam and the horizontal door. The supporting beam is mounted at the bottom of the ship lift chamber. The main lifting cylinders are symmetrically mounted on the two sides of the ship lift chamber. The multiple sets of counterweight systems are mounted on the two sides of the ship lift chamber. The locking devices are fixed to the two sides of the top of the ship lift chamber. The abutting guide devices are mounted on the two sides of the ship lift chamber. One end of each abutting guide device is connected with the ship lift chamber. The other end of each abutting guide device is connected with guide rails of the tower columns. The partially-balanced hydraulic lifting type ship lift is reasonable and simple in structural design, safe and stable in operation, high in reliability and low in cost.

The invention discloses a three-stand-column type offshore wind power generation platform system which comprises a draught fan system, a floating foundation and a mooring system, the draught fan system comprises a draught fan tower, and the draught fan tower stands in the center of the upper portion of the floating foundation; the floating foundation comprises three stand columns and a center disc, the three stand columns are distributed in an equilateral triangle shape, the center disc is arranged in the centers of the three stand columns, the center disc is connected with the upper portion of each stand column through an upper box type structure, and the lower portions of the stand columns are connected with one another through bottom buoyancy tanks to form a stable equilateral triangleshape. The floating foundation operation is shallow in draught and wide in water depth application range, can be applied to wide sea areas of 40 m or above, meets the performance of stability, movement, structure and the like by changing the size and span of structural components under the condition of guaranteeing shallow draught, is suitable for supporting offshore wind turbines with various powers, and is expanded to 10 MW and higher-power offshore wind turbine types.

The invention discloses a novel offshore wind turbine floating type platform. The novel offshore wind turbine floating type platform comprises blades, a cabin, a tower frame, a floating type foundation, a stabilizer frame and motion stabilizers; the blades, the cabin and the tower frame are mounted on the central position of the floating type foundation, the four motion stabilizers are evenly distributed at the bottom of the floating type foundation in the circumference direction through the stabilizer frame, through external loads borne by the bottom of the floating type foundation, damping of the motion stabilizers is adjusted, and the aim of improving the stability of the floating type structure is achieved. The speed of responding to wind-wave load instantaneous variations in the different circumference directions is high, the main device is simple in type, good controllability and maneuverability are achieved, and mounting and maintaining are facilitated.

The invention provides an ice-storage-type heat-source tower heat pump system device which comprises a heat-source tower, a heat pump unit, an ice crystal blocking device, a crystallization promotingdevice, an ice storage pool, a solution pool, an ice crystal filter, a preheater, an ice melting pump, a circulating pump, an ice melting heat exchanger, a hot water inlet valve, a cooling water inletvalve, a solution water inlet valve, an ice storage pool liquid inlet valve, a cold water outlet valve, a cold water inlet valve, a cold water bypass valve, an ice-making water inlet valve, an ice melting valve, a circulating pump adjusting valve, a cooling water outlet valve, a hot water outlet valve, a heat-source tower circular pump, a solution pool liquid inlet valve and an anti-freezing solution water inlet valve. The invention further provides four using methods of an ice-storage-type heat-source tower heat pump system, wherein the four using methods include a general refrigeration mode, an ice cold-storage mode (joint operation of ice making and ice melting), an ice cold-storage mode (an ice single melting mode) and a winter heating mode. An anti-freezing solution is regenerated ina frozen mode through a super-cooling method, and the system is rich in function and simple in type.

The invention discloses a double-shaft oblique slot forming machine comprising a water inflow rubber tube 3, a water inlet tube 4 and a water spray nozzle 5, wherein the water inlet tube is welded by thick walled tubes, can be used for inflow and can support double shafts A and B. A motor 1 drives a power control box 2, leading dynamical shafts A7 and B8 reversely arranged in the control box 2 rotate synchronously; the shafts A and B are respectively provided with a plurality of soil cut digging tools, the double shafts A and B are supported on the water inlet tube by a plurality of support shaft sleeves 10; a lifting tackle 11 is used for lifting the bottom of the slot forming machine; and the upper part of the slot forming machine is supported on a walking chassis by a support shaft. The invention is a vertical plastic spreading slot forming machine and can be also for forming slots to build underground continuous wall.

The invention discloses oak floors and a coating method thereof. The method comprises the following steps: performing steel brush processing; sanding; spraying polyurethane black primer; sanding; spraying the polyurethane black primer; sanding; spraying polyurethane golden primer; sand-penetrating; spraying polyurethane clear primer; sanding; and spraying polyurethane transparent finish. The oak floor obtained by adopting the method has the effects of black matrix and golden color and is simple, clear, noble and elegant.

The invention relates to a shift control mechanism of a transmission. The shift control mechanism comprises a first shift lever, a second shift lever, a third shift lever and a fourth shift lever, wherein a first shift fork and a first shift drive fork are matched on the upper portion of the first shift lever, a second shift fork and a second shift drive fork are matched on the lower portion of the second shift lever, the lower portions of the third shift lever and the fourth shift lever are matched with a third shift drive fork respectively, and a third shift fork is matched on the upper portion of the fourth shift lever. The shift control mechanism is characterized in that a shift block is composed of a shift finger and a shift cam, a mounting hole is arranged at the center of the shift cam, a shift shaft is perpendicular to the fourth shift lever and matched with the mounting hole on the shift cam, and the shift finger is positioned between inner sides of the first shift fork, the second shift fork and the third shift fork. The shift control mechanism is simple in structure, and capable of achieving shift interlocking and gear selection before dislocating, reducing shift time, and improving safety and service efficiency of the transmission.

The invention discloses an element adjustable solar panel bracket system for mounting a solar panel on a building roof. The element adjustable solar panel bracket system comprises horizontal keels, connecting parts, vertical keels, angle adjustable connecting parts and top layer longitudinal keels, wherein at least two rows of vertical keels are perpendicular to a baseplate and connected with the baseplate through the connecting parts; a top layer longitudinal keel is arranged at the top of each row of vertical keels, and connected with the vertical keels through angle adjustable connecting parts; the top surfaces of the top layer longitudinal keels are connected with the horizontal keels; the tops of the horizontal keels are used for mounting the solar panel and a bracket of the solar panel. The system can be suitable for areas of various latitudes flexibly; the angle of the solar panel can be adjusted into an optimum state according to a local solar altitude; the material of the system is less susceptible to rustiness, good in service durability and reusable; the mounting is convenient and fast; the original roof waterproof layer cannot be damaged; the element connection method is accurate; the system is more suitable for mounting photovoltaic power generation panels of larger areas.

The invention discloses a castor fiber-protecting bionic channel built near a barrage. The bionic channel comprises the barrage built on a river channel according to surrounding topographic lines, anda castor fiber-protecting bionic channel body built by selecting proper surrounding topographic lines for protecting castor fibers, wherein dead wood blocking sills and a gate for adjusting water level and flow are built in the bionic channel body, and salix psammophila is artificially planted at an inlet and outlet and the two sides of the bionic channel body; a water supplementing pool for supplementing water to the bionic channel body is built by selecting proper surrounding topographic lines, the water supplementing pool controls a water supply pipe to supplement water to an adjusting pool through a valve, and the adjusting pool supplements water to the bionic channel body through the gate; and meanwhile, the water supplementing pool irrigates the artificially-planted salix psammophila, and the water supplementing pool adopts a water pump and a water inlet pipe to pump reservoir water for water supplementing. The channel is simple in type, a castor fiber habitat is created, protection of the first-grade state protection animal, namely, the castor fibers, is facilitated, communication and propagation of castor fiber populations blocked by dam construction are facilitated, and the optimization and improvement of race is facilitated.

The invention relates to an under-sill water delivery energy dissipation structure and a construction method thereof. The invention aims at providing the under-sill water delivery energy dissipation structure which is simple in simple, convenient to construct and high in energy dissipation efficiency and the construction method of the under-sill water delivery energy dissipation structure. According to the technical scheme, the under-sill water delivery energy dissipation structure is provided with a lock head bottom plate, a lock head curtain wall and lock side walls, wherein the lock head curtain wall is poured onto the lock head bottom plate, and the lock side walls are on the two sides of the lock head curtain wall. The under-sill water delivery energy dissipation structure is characterized in that a water retaining vertical plate is built in the position, a certain distance spaced from the lock head curtain wall, of the lock head bottom plate on the upstream side of the lock head curtain wall; a perpendicular water delivery vertical well is formed between the water retaining vertical plate and the lock head curtain wall; energy dissipation devices are arranged in the perpendicular water delivery vertical well; the lower portion of the perpendicular water delivery vertical well communicates with water inlets of a plurality of sudden expansion chambers reserved at the bottom of the lock head curtain wall; and water outlets of the sudden expansion chambers communicate with a ship lock chamber through a water delivery gallery reserved in a lock bottom plate on the downstream side of the lock head curtain wall. The under-sill water delivery energy dissipation structure and the construction method thereof are suitable for water conservancy and hydropower engineering and water transportation traffic engineering.

The invention relates to a control method for aggregate outflow through mine dynamic water sealing. The existing method is only suitable for situations that the water inrush is small and the water pressure is low, and has extremely poor adaptability for super-huge type mine water inrush with huge water inrush and higher water pressure. The control method for aggregate outflow through mine dynamic water sealing comprises the following steps: selecting a section perpendicular to the axis of a roadway; preparing a material; placing a mesh into the side, close to a water inrush point, of the section; arranging a vertical rack tube grid on the section of the roadway; constructing a row of anchor rods on a bottom plate of the roadway on one side of a back side of the rack tube grid; connecting an anchor through tube with the anchor head of each anchor rod on the ground; arranging ground tubes on the sides, close to the back side of the tube rack grid, of the anchor through tubes; fixing the mesh on transverse tubes of a net rack by using iron wires towards the water inflow direction; connecting each supporting tube to form a stable whole body. The method has the advantages of short construction time and good aggregate outflow control effect and can be applied to the situation of super-huge type mine water inrush.

The invention provides a three-linkage wave-absorbing block. The wave-absorbing block comprises three cylindrical rod bodies which have the same shape and are perpendicularly and parallelly connected in three dimensions. A cross section of each of the three cylindrical rods is square, rectangular or circular. Two ends of each of the three cylindrical rods are frustums of a prism or frustums of a cone. The three-linkage wave-absorbing block with the structure has the advantages of simple form, large porosity, good wave-absorption effect, high block stability, small material consumption and convenient construction. Compared with artificial blocks, the three-linkage wave-absorbing block is a novel armor block with excellent overall performance. The novel armor block has high practicality and wide promotion and use prospects. The wave-absorbing block is applicable to various protection projects such as port breakwaters, sea reclamation levees, bank revetments and the like, and particular to areas with poor natural conditions such as deep water waves and so on.

The invention discloses a method for rapidly developing sliding news pages for a mobile phone APP, belonging to the field of software development. The method comprises the following steps: compiling json data, generating codes by using a function img, and compiling a callback function goNews to finish development of the sliding news page. Compared with the prior art, the method disclosed by the invention has the advantages that the beautiful and practical sliding news page can be rapidly and simply developed, and the promotion and application values are good.

The invention discloses double-side compound texture fabric. The double-side compound texture fabric comprises a middle fabric layer and is characterized in that an antibacterial fabric layer is arranged on one side of the middle fabric layer, a fabric outer layer is arranged on one side of the antibacterial fabric layer, the fabric outer layer is knitted by first fabric slivers and second fabricsilvers, a fabric lining layer is arranged on one side of the antibacterial fabric layer, the fabric lining layer is knitted by first silk slivers and second silk slivers, a third silk sliver penetrates each horizontal second silk sliver, and the part between every two adjacent third silk slivers is connected with the first silk slivers and the second silk slivers through knitting threads. A production method of the antibacterial fabric layer includes the steps of S1, knitting a plurality of Tencel fiber yarn on a weft knitting machine, and four kinds of yarn are fed in each yarn path. The fabric is soft and stiff, and the wrinkle resistance of flax is well improved.

The invention discloses a bath boiler with a disinfection function. The bath boiler comprises a boiler body and a disinfection cabinet, wherein the disinfection cabinet is disposed on the left end of the boiler body; a touch screen is disposed on the upper end of a front surface of the boiler body; a control area is disposed at the right side of the lower end of the front surface of the boiler body; a water inlet, a water outlet, a power line and a gas inlet are sequentially formed in the right side of the boiler body from top to bottom; a control cabinet is disposed on the upper end inside the boiler body; a water tank is disposed on the lower end of the control cabinet; a combustion chamber is disposed on the lower end of the water tank; a disinfection cabinet door is disposed on the front surface of the disinfection cabinet; two hanging rods are disposed on the upper end inside the disinfection cabinet; a cleaning cabin is disposed on the bottom end inside the disinfection cabinet. The bath boiler with the disinfection function disclosed by the invention is high in heat efficiency, efficient and energy-saving, stable in quality, safe and reliable; the use cost is saved; the bath boiler is ignited by electronic impulses, a one-key type switch is adopted, thus the bath boiler is simple and rapid to operate; steam generated by heating water enters into the disinfection cabinet and can sterilize and disinfect a towel and the like, thus the bath boiler is multifunctional.

The invention discloses a processing technology of a wearable ornament and the ornament. The processing technology comprises the steps that S1, a material is selected, and a gold material is selected according to the requirement of the ornament; S2, edge separation is conducted, and the gold material is divided into a wearable face close to skin and a display face displaying to the outside; S3, blank chiseling is conducted, and modeling is conducted on the wearable face according to a drawing designed in advance; S4, dressing and polishing are conducted, and sequential dressing and polishing are conducted on the wearable face from inside to outside; S5, shaping is conducted, and the ornament is formed by the dressed and polished material. The invention provides the processing technology of the wearable ornament with multiple display angles and the ornament.

The invention discloses an element adjustable solar panel bracket system for mounting a solar panel on a building roof. The element adjustable solar panel bracket system comprises horizontal keels, connecting parts, vertical keels, angle adjustable connecting parts and top layer longitudinal keels, wherein at least two rows of vertical keels are perpendicular to a baseplate and connected with the baseplate through the connecting parts; a top layer longitudinal keel is arranged at the top of each row of vertical keels, and connected with the vertical keels through angle adjustable connecting parts; the top surfaces of the top layer longitudinal keels are connected with the horizontal keels; the tops of the horizontal keels are used for mounting the solar panel and a bracket of the solar panel. The system can be suitable for areas of various latitudes flexibly; the angle of the solar panel can be adjusted into an optimum state according to a local solar altitude; the material of the system is less susceptible to rustiness, good in service durability and reusable; the mounting is convenient and fast; the original roof waterproof layer cannot be damaged; the element connection method is accurate; the system is more suitable for mounting photovoltaic power generation panels of larger areas.

The invention relates to a preparation method of a three-dimensional antique oil painting. It is characterized in that it consists of the following steps: (1) cutting the medium density board or thin cardboard into the same size as the decorative painting, (2) bonding the decorative painting and the medium density board or thin cardboard together with glue, (3) Apply a layer of gel-like transparent glue evenly on the surface of the decorative painting, and then use a roller to roll the glue surface to produce accumulation or texture effects. (4) Put the processed decorative painting into the empty frame. The antique oil painting produced by the present invention has the advantages of simple process, various styles, high transparency, low transport breakage rate, non-toxic and harmless, high safety, certain waterproof ability, no reflection under light irradiation, not easy to change color after long-term use, and overall After the painting is finished, the surface effect is realistic and the three-dimensional effect is strong. It can improve the grade of oil painting and other advantages, and it is a new product in the picture frame.

A Toilet Paper Box that allow use 1 hand to pulling toilet paper and detached desire length without need to touch the whole paper roll that could prevent spread on infection dieses. The device has 2 major components. The toilet paper handler has built or attach on with trigger method by ball-head hammer and partial-gear-wheel styles. The second key component is the contain box that has unique cutting holes and paper arrangement to produce the result from the operating of the handler trigger the swing “L” shape leg to lifting that making the mouth frame biting action. After user tear out toilet paper by cutting teeth, the pulling force is disappear, then the handler's weight will rotate back to its start position, and the mouth frame is open. The extend paper end will stay outside the box as tong for the next pulling.