115 results about "Open cavity" patented technology

A reciprocating linear movement massaging apparatus, having a shell, a massaging assembly provided in the shell, a driving mechanism for driving the massaging assembly to perform reciprocating linear movement axially along the shell, and an electric control device for controlling the driving mechanism; the driving mechanism comprises a stator assembly and a mover assembly, an air gap is provided between the stator assembly and the mover assembly; the stator assembly comprises (an) annular coil(s) provided in the shell, the mover assembly comprises a plurality of magnets provided in the annular coil(s), the plurality of magnets enclose to be an annular magnet; the annular magnet is transmissively connected with the massaging assembly and the massaging assembly is located in an annular space enclosed by the annular magnet, and an open cavity is provided in the massaging assembly for receiving a human part to be massaged.

A method for manufacturing an implantable lead including an elongated lead body with a plurality of wires and an electrically isolating outer layer, wherein the method comprises:Providing a sleeve having a sealed end and an open cavity opposite the sealed end and including electrically conducting material;Pulling at least one wire out of the lead body;Positioning the pulled end of the at least one wire within the cavity of the sleeve;Forming the sleeve using a pressing tool such that the volume of the cavity is reduced, that the wire is fixed within the sleeve and that an electrical connection of the at least one wire and the formed sleeve is established;Attaching a contact element to the lead body such that the contact element fixes the formed sleeve at the lead body and establishes an electrical connection to the sleeve.

The utility model provides door bottom sound insulation sealing device belongs to door and window sealing technical field, the utility model provides door bottom sound insulation sealing device includes fixed base, sealing structure and lift adjusting assembly. The sealing structure is embedded in the fixed base, sealing structure can move up and down along the height direction of fixed base, and sealing structure is connected with lift adjusting assembly. When the press end of lift adjusting assembly is pressed, make the sealing structure move to the outside of opening cavity with the push part, thereby lift the sealing structure out of the outside of fixed base, the sealing structure fills the gap between the bottom of sound insulation door or sound insulation window and outer frame, thereby reaches the sealing sound insulation effect, and sealing structure sets up in the opening cavity, therefore when the sealing strip is aged, only need to replace sealing structure can solve the technical problem that the sealing strip aging leads to the poor sound insulation effect.

The invention discloses an optical sensor for measuring gas components of mixing equipment, and belongs to the technical field of gas component detection. Comprising a plurality of arrayed measuring units, and each measuring unit comprises a laser and a detector; the measuring unit further comprises an optical assembly, an air suction cavity, an open type cavity and a main hollow roof prism which are sequentially arranged in the direction of an incident light beam emitted by the laser, the optical assembly is connected with the air suction cavity in a sealed mode, and the air suction cavity is communicated with the open type cavity; the laser and the detector are arranged at the same end of the optical assembly. The compact layout of each structure in the measurement unit is realized, and a plurality of reciprocating light paths are formed in the gas absorption cell formed by the suction cavity and the open cavity by utilizing the reflection of the main hollow roof prism and the optical component to the incident light beam, so that the absorption optical path required by various gas detection is ensured, and the detection accuracy is improved. And the measurement requirements of mixing equipment with various sizes are met.

The invention relates to the technical field of electric connection, in particular to a high-speed shielding connector which comprises an injection molding outer shell, a first shielding lower shell, a second shielding lower shell, a shielding upper cover, an insulating base, a conductive terminal and a connecting wire. The first shielding lower shell, the second shielding lower shell and the shielding upper cover form a shielding shell, and the injection molding outer shell is provided with a fixing cavity; the fixing cavity is used for fixing the shielding shell, and the plugging end of the shielding shell is exposed outside the fixing cavity; the first shielding lower shell is provided with an open type cavity, connecting vertical plates are arranged on the two sides of the open type cavity, the second shielding lower shell is arranged in the open type cavity, and the two sides of the second shielding lower shell are connected with the connecting vertical plates. Omnibearing electromagnetic shielding is provided for inner core connecting points of the conductive terminals and the connecting wires, mutual interference between internal high-speed signals and external complex electromagnetic environments is effectively isolated, and signal integrity is ensured.

The invention discloses an air test system design method suitable for pressure control of an open containing cavity. The method comprises the following steps that working condition requirements are determined, air source configuration is selected, a small-power air compression station and an energy storage tank are adopted, and the pre-inflation pressure is 0.8 MPa or 2 MPa; an AMESIM initial model is established, an air inlet unit adopts a plurality of small-drift-diameter high-frequency electromagnetic on-off valves to be connected in parallel to form a matrix type control valve group, and the matrix type control valve group is connected with an air compression station, an energy storage tank and a tested containing cavity to form a closed-loop control system; simulation verification is carried out, and pressure and flow curves are analyzed; optimizing the model and parameters, and adjusting the specification of the valve group until working conditions are met; and establishing an air test system which is established according to the optimization model and comprises a basic rack, a pressure air source, an air storage unit, a matrix type control valve group and a control system. According to the method, the defects of an existing design in the aspects of economy, reliability and full working condition meeting are overcome, rapid voltage building and stabilizing are achieved through high-frequency matrix control, the system resolution ratio and the response speed are improved, cost is reduced, and safety is improved.

The invention relates to the technical field of drawer side plate decoration accessory installation, and provides a drawer front connecting mechanism and decoration cover quick-assembly structure which comprises a decoration cover, the decoration cover is installed on a shell of a drawer front connecting mechanism, an open cavity is formed in the decoration cover, and a sliding connection guide part is arranged between the shell and the decoration cover; during installation, the decorative cover transversely moves relative to the shell through the sliding connection guide part, so that the shell is relatively inserted into the cavity of the decorative cover, and quick installation of the decorative cover and the shell is achieved. The decorative cover is provided with an open cavity, a sliding connection guide part is arranged between the shell and the decorative cover, and during installation, the decorative cover transversely moves relative to the shell through the sliding connection guide part, so that the shell can be inserted into the cavity to achieve quick installation.

The invention discloses a noise online monitoring microphone sensitivity comparison calibration device and method. The device comprises an open cavity, a microphone to be calibrated, a monitoring microphone, a pure tone generator, a sound guide tube and a control unit, wherein the open type cavity is provided with a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is used for being communicated with the sound inlet side of the microphone to be calibrated, the second connecting end is used for being communicated with the sound inlet side of the monitoring microphone, and the side wall of the open type cavity is provided with a plurality of through holes communicated with the external environment. External noise can enter the open type cavity; the sound guide tube is used for communicating the pure tone generator with the sound guide interface of the open cavity so as to guide the pure tone output by the pure tone generator into the open cavity; and the control unit is in signal connection with the pure tone generator, the monitoring microphone and the microphone to be calibrated, and is used for adjusting the output of the pure tone generator based on a feedback signal of the monitoring microphone, so that after a pure tone sound field in the open cavity reaches a preset reference condition, the microphone to be calibrated is calibrated. And reading a return signal of the microphone to be calibrated to obtain the sensitivity or the sensitivity characterization value of the microphone to be calibrated.

The utility model provides a coating ring cutting device based on anticorrosive coating adhesive force detection. The coating ring cutting device comprises a machine body, a rotary drum, a driving structure and a positioning structure. The machine body is provided with a rotatable switching part. One end of the rotary drum is coaxially connected with the switching part, the other end of the rotary drum is provided with an open cavity, and an annular sawtooth part is arranged at a window of the open cavity. The driving structure is arranged on the machine body and can drive the switching part to rotate. The positioning structure is arranged on the machine body and provided with a contact part extending into the open cavity, and the contact part is provided with a positioning groove matched with the hanging end of the spindle. According to the coating ring cutting device based on anticorrosive coating adhesive force detection, manpower is reduced, the coating ring cutting device can adapt to a thick coating, it can be guaranteed that in the process that the rotating drum covers the spindle, the rotating drum is positioned, it is guaranteed that the rotating drum and the spindle are coaxially arranged, then it is guaranteed that an annular cutting seam and the spindle are concentric, and the service life of the spindle is prolonged. The final detection effect can be ensured, and the practicability is high.

A tip coupler for a bucket in a bucket lip assembly for a machine, such as a hydraulic mining shovel, includes a coupler body including a mounting portion and a nose portion projecting from a forward body end of the mounting portion. The forward body end includes an end face and a plurality of tip-contact surfaces arranged about the nose portion. The back body end of the mounting portion includes a plurality of corners, and a plurality of load-reacting surfaces offset fore-aft from the plurality of corners and arranged about an open cavity end of a lip-installation cavity in the coupler body. Related apparatus is also disclosed. The tip coupler may be arranged in a bucket lip assembly of a bucket of the machine.

The invention discloses a bionic curved surface modular landscape seat and a rapid construction method thereof, and belongs to the technical field of urban landscape facilities. The seat is composed of a force bearing base plate, a special-shaped anti-corrosion wood plate, a fast-inserting keel, a cavity partition plate and a drawer type light source module. The back face of the special-shaped plate forms a continuous bionic curved surface according to the ischium-thighbone pressure isoline, is consistent in thickness and different in outline and is connected with a T-shaped groove of the base plate in a buckled mode, a completely-open cavity is formed in the bottom, a partition plate drill hole is drilled for animals to drill, jump and hide, and a light source is hidden in a drawer groove in the back face of the seat plate and softly overflows after being subjected to high diffuse reflection of the cavity. The construction method comprises the steps of three-dimensional bionic modeling, NC cutting, vacuum pressurization corrosion prevention, on-site chassis-keel buckle insertion and partition plate and light source push-in, assembly can be completed without bolts, and one-step maintenance extraction is achieved. Human-animal sharing is achieved, construction is rapid, road-occupying-free maintenance is achieved, the manufacturing cost and the life cycle cost are both lower than those of a steel structure of the same grade, and the system is suitable for eco-friendly scenes such as parks, blocks and campuses.

The invention discloses an open-cavity cross beam lower seat type unit curtain wall structure and a mounting method thereof.The open-cavity cross beam lower seat type unit curtain wall structure comprises a first floor body structure, a second floor body structure, a unit plate and a bottoming cross beam, the bottoming cross beam is fixedly connected with a steel part on the first floor body structure, and the unit plate is composed of a glass panel, a bottom cross beam, a stand column and a top cross beam; an aluminum alloy reinforcing material is arranged at the position, close to the stand column, of the bottom of the bottom cross beam, the aluminum alloy reinforcing material is connected with the bottom lifting cross beam through an adhesive tape, the aluminum alloy reinforcing material is fixedly connected with the bottom cross beam, an aluminum connecting piece is arranged on the second floor body structure, and the aluminum connecting piece is fixedly connected with a groove type embedded part in the second floor body structure. The aluminum alloy reinforcing material is arranged at the position, close to the stand column, of the bottom of the bottom cross beam, the aluminum alloy reinforcing material is matched with the bottom lifting cross beam, and the problem that the cavity opening cross beam and the bottom lifting cross beam cannot be connected and fixed is solved.

Footwear article manufactured using a process (100) comprising the following steps: - Providing (103) a mold (1) defining an open cavity (2), wherein the shape of at least part of the cavity (2) corresponds to the shape of a sole (3) of the shoe article (10), wherein the cavity (2) is configured to open into the cavity (2) via at least one injection channel (4, 4', 4'', 4''') to receive a mixture comprising a molten material and a supercritical fluid; - Arranging (105) an edge (5) of an opening of the cavity (2) which is in contact with a contact area (6) of a surface (7) of at least one part of a shaft (9) of the shoe article (10), such that the surface (7) of the at least one part of the shaft (9) ensures a closure of the cavity at the contact point between the contact area (6) and the edge (5); - Applying negative pressure (105 bis) to the cavity (2); - Injecting (107) the mixture into the cavity (2); - Pressure relief (108) of the cavity (2) of the mold to trigger an expansion of the mixture in the cavity (2) and to form the sole (3) from a foamed material resulting from the expansion of the mixture, wherein at least a part of the surface (7) of the at least a part (9) of the shaft is enclosed in the foamed material of the sole (3).

The application discloses a noise reduction thin layer composite structure, which comprises a shell, a steel net, a thin layer sound absorbing body and a composite damping layer, the shell is an open cavity, one side of the thin layer sound absorbing body is connected with the steel net through pressing and the other side is connected with the composite damping layer through pressing, and both are installed in the shell; the composite damping layer comprises a damping layer, a shear body and an impedance matching layer, the shear body is periodically distributed on the surface of the side of the damping layer far from the thin layer sound absorbing body, and the impedance matching layer is an air layer enclosed by the shell and the damping layer. The application can have excellent low-frequency sound absorption and sound insulation performance under the condition of light and thin structure, meets the comprehensive requirements of outdoor weather resistance and installation adaptability, effectively reduces the influence of noise generated in the operation process of a transformer substation on the environment and residents, the characteristic size is in the range of deep sub-wavelength scale, is beneficial to realizing the optimization of low-frequency acoustic characteristics under the condition of limited thickness, has excellent low-frequency sound absorption performance and has tunable low-frequency sound absorption and insulation characteristics.

The utility model relates to food processing technical field, concretely relates to a kind of industrialization multilayer pollution prevention chicken steaming equipment, including support frame, the support frame is U-shaped hollow structure, the both ends of support frame are fixedly installed with multiple hanging parts, multiple the hanging part is all installed with multiple layer plate connecting rod, the inside of both sides layer plate connecting rod is fixedly installed with steaming part.The utility model is through being provided with multiple blood foam groove between layer plate connecting rod, effectively prevent blood foam drop pollution lower chicken body in the steaming process, improve the evenness of colour and lustre and sensory quality of product, by adopting the setting of multilayer stacking, substantially improve space utilization, improve the production capacity of single processing, meet the requirement of industrialization batch production, equipment is semi-open cavity, can make internal steam evenly distribute in the process of steaming, guarantee the stability of processing product.

A connector block for a stator housing is disclosed. The connector block includes a housing forming an open cavity that has first and second access openings and a grommet arranged in the first access opening to seal access into the cavity via the first access opening. A seal having a first surface facing out from the cavity and a second surface facing into the cavity is also included. The seal is arranged in the second access opening to seal access into the cavity via the second access opening. A steel plate is arranged on the second surface of the seal. A terminal is arranged within the cavity. The terminal includes a first opening arranged to receive any connector passing through the grommet and at least one wire crimping element arranged to receive crimping ends of wire or wires passing through the second access opening.

This utility model provides a shock-absorbing and anti-slip device for mounting on the support legs of a washing machine. The device includes an upper shock-absorbing edge area and a lower shock-absorbing and anti-slip area. The shock-absorbing edge area has an open cavity, and a shock-absorbing component is located at the bottom of the cavity. The shock-absorbing component includes multiple buffer columns of the same height. The support legs are housed in the cavity and in close contact with the buffer columns. The shock-absorbing and anti-slip area includes a flat anti-slip layer in the middle of the bottom and a sealing protective layer on the outer perimeter of the bottom. Multiple anti-slip suction cups are located within the flat anti-slip layer, and both the suction cups and the sealing protective layer can adhere to the ground. The shock-absorbing and anti-slip device of this utility model significantly improves the shock-absorbing and anti-slip effect, effectively reducing the impact of washing machine vibration on the surrounding environment and extending the service life of the washing machine.

The utility model provides an earth pressure cell fixing device which comprises a bottom box, at least one fixator is coaxially and rotatably installed on the outer circumferential face of the bottom box, an open cavity for containing an earth pressure cell is formed in the upper surface of the bottom box, a fixing cover for fixing the earth pressure cell is detachably and fixedly installed at the open end of the bottom box, and the fixing cover is fixedly installed on the bottom box. A through hole is formed in the fixed cover in a penetrating manner; by means of the overall arrangement, the soil pressure box can be rapidly fixed to the pile steel bar, more convenience and flexibility are achieved, and therefore the installation efficiency is improved.

The invention relates to an aircraft part (100) comprising a body (102) having a surface (104) extending in first and second perpendicular directions (Z, X) and a platform (106) extending from the surface of the body, the platform (106) being delimited along the first direction by first and second surfaces (106A, 106B), the first surface (106A) extending from the surface of the body along an extension direction (DE) perpendicular to the second direction. According to the invention, the part includes a support (120) arranged between the surface (104) of the body (102) and the first surface (106A) of the platform (106), the support comprising several arches (130) configured to support the first surface of the platform, each arch (130) defining an open cavity (132) delimited by two opposing side walls (134A, 134B) along the second direction (X), and a vault wall (136) of the arch connected to the two side walls (134A, 134B).Figure for the abbreviation: Figure 3.

The invention discloses a high-gain ultra-wideband dual-polarized antenna with a filtering characteristic, and belongs to the technical field of communication equipment, and the antenna comprises an antenna radiation layer which is printed on a first dielectric substrate and comprises four annular units, and the four annular units are arranged in a four-leaf clover shape on a horizontal plane; the parasitic structure layer is printed on the second dielectric substrate and arranged above the antenna radiation layer in parallel, the parasitic structure layer comprises a circular patch and four sections of arc rings, the circular patch is located at the center of the second dielectric substrate, and the four sections of arc rings are evenly distributed around the circular patch; and the reflection cavity comprises a bottom plate and four reflection walls, the four reflection walls are vertically connected with four edges of the bottom plate to form a semi-open cavity, and the antenna radiation layer and the parasitic structure layer are arranged in the reflection cavity. The antenna covers all 5G communication frequency bands between 1.7 GHz and 3.7 GHz, gain attenuation in a passband is gentle, the antenna has the functions of ultra wide band, high gain and filtering, and the antenna is simple in structure and convenient to process and assemble.

The invention discloses a high-gain inflatable antenna system easy to disassemble and assemble. The high-gain inflatable antenna system comprises a reflecting surface, an inflatable sphere antenna housing and a feed source, the reflecting surface is arranged at the central position of the inner equator of the inflatable spherical antenna housing, is radially arranged and is matched with the feed source to form a high-performance reflecting surface antenna system; the feed source is arranged on the surface of the inflatable spherical antenna housing, is vertical to the plane direction formed by the reflecting surface, and is arranged along the axial direction; the feed source comprises an orthogonal mode coupler, a feed source supporting leg and a feed source connecting seat, and the orthogonal mode coupler adopts a split structure and is an open type cavity capable of being directly subjected to numerical control machining; the feed source connecting seat is arranged on the spherical surface of the inflatable spherical antenna housing, and a quick-release screw is preassembled in the connecting seat; a U-shaped opening sliding groove is formed in one end of the feed source supporting leg, and the feed source supporting leg is directly clamped into the shaft portion of the quick release screw through the U-shaped opening sliding groove and screwed tightly. The adaptability and the installation precision of the system are remarkably improved.

A valve device includes a case including an open lower portion and an accommodation space provided therein, a base plate to cover the open lower portion of the case, a refrigerant inlet pipe connected to the base plate and to allow a refrigerant to flow into the accommodation space, an inlet and outlet pipe connected to the base plate to allow the refrigerant to flow in and out, a boss including a refrigerant inlet and outlet hole formed at a first position spaced apart from a center to communicate with the inlet and outlet pipe, and an extending groove extending radially outward from the first position to a second position and connected to the refrigerant inlet and outlet hole, and a pad including an open cavity rotatable on one side of the boss to close the refrigerant inlet and outlet hole and to open the extending groove.

The application belongs to the field of medical instruments, and discloses an integrated device for generating a decellularized organ patch, which is designed as a decellularization chip, which comprises a decellularization processing module and an oscillator, the decellularization processing module is arranged above the oscillator and is fixedly connected with the oscillator; the decellularization processing module comprises: a middle layer, which comprises an open cavity arranged in the central region of the middle layer and a cell filter screen arranged on the open cavity; a bottom plate bonded to the lower layer of the middle layer, which is provided with a concave flow channel on the side facing the middle layer and is located in the orthographic projection region of the cell filter screen on the bottom plate; an upper cover bonded to the upper layer of the middle layer, which is provided with a liquid inlet in communication with the initial end of the concave flow channel and a liquid outlet in communication with the terminal end of the concave flow channel; and an integrated device formed by integrating a control unit, the decellularization chip and a fluid module. Based on the device, the decellularization can be controlled and adjusted to be completed in a stable and accurate environment.

This invention discloses a method and structure for suppressing the second mode wave of a high-speed boundary layer to delay transition, relating to the field of boundary layer flow control technology. The method for suppressing the second mode wave of a high-speed boundary layer to delay transition includes: determining the synchronization point of a conical high-speed boundary layer according to the design incoming flow conditions; and setting an open cavity between the leading edge of the conical high-speed boundary layer and the synchronization point. The large-sized open cavity on the surface of the conical high-speed boundary layer can effectively suppress the growth of the second mode wave, thereby delaying the transition of the high-speed boundary layer. This is beneficial for achieving laminar flow design of the conical high-speed boundary layer and reducing aerodynamic losses and aerodynamic heat caused by transition in the high-speed boundary layer.

The invention discloses a symmetric quasi-optical cavity design method for dielectric constant measurement, which belongs to the technical field of quasi-optical cavity design and comprises a mirror design method and a coupling design method. The design method of the mirror is as follows: the quasi-optical cavity is composed of a transmission-type spherical mirror with a symmetrical structure, and parameters needing to be designed mainly comprise the curvature radius of the spherical mirror, the aperture radius of the spherical mirror, the distance between the two spherical mirrors and the material of the spherical mirror; factors considered during design comprise intrinsic spectral line purity, stability of an open cavity, an open cavity Q value and a girdling radius; the coupling design method comprises the following step of feeding a signal into and out of the symmetrical quasi-optical cavity by adopting a coupling ring mode. According to the design method of the symmetric quasi-optical cavity, the coupling ring is innovatively placed between the two spherical mirrors for signal feed-in / feed-out, a traditional fixed small hole coupling mode is replaced, the coupling strength of the coupling ring is flexibly adjusted through parameters such as the ring diameter, the wire diameter and the position, and the problems that after small hole coupling machining, adjustment cannot be conducted, and flexibility is poor are solved.

The application discloses an ultrasonic food slitting device, which comprises an ultrasonic cutting tool head and an ultrasonic booster, the ultrasonic booster can drive the ultrasonic cutting tool head to move vertically; two oppositely arranged cover plates, rectangular grooves are formed on the opposite sides of the two cover plates; two rubber blocks are fixedly connected to the opposite sides of the two cover plates respectively, when the two cover plates are closed to each other, the two rubber blocks are tightly attached to form an open cavity which can accommodate. The application adds anhydrous ethanol into the open cavity, and the ultrasonic cutting tool head adhering with oil is placed in the anhydrous ethanol, so that the oil and the anhydrous ethanol are mutually soluble, the oil on the ultrasonic cutting tool head is cleaned, the problem that the oil is not easy to be cleaned by manual cloth wiping and it is difficult to ensure that the bacteria content is not over standard is solved, and the effect that the oil is efficiently cleaned and quickly dried after cleaning is achieved.

The utility model discloses a chamber cover and edge type coating equipment, including the chamber cover body that is used for matching and covering the chamber body of reaction chamber, the chamber cover body is at least correspondingly equipped with one jacking structure, the jacking structure includes mounting base, jacking drive device, limit piece and guide rod; a jacking driving device is arranged on the mounting base, at least one limiting piece is further arranged on the mounting base on each of the two sides of the jacking driving device, each limiting piece is arranged on the corresponding guide rod in a sleeving manner and is in sliding connection with the guide rod, and the top of each guide rod is connected with the cavity cover body; and the output end of the jacking driving device is connected with the guide rod. According to the utility model, the cavity cover of the reaction cavity is automatically opened or closed through the jacking structure, so that the safety coefficient when the cavity cover is dismounted or opened is greatly improved, and the safety of operators and equipment is guaranteed.

A valve device includes a housing having an open lower portion and a receiving space formed therein, a bottom plate covering the open lower portion of the housing, an inlet pipe connected to the bottom plate and through which a refrigerant is introduced into the receiving space, a boss installed at the bottom plate and including a plurality of refrigerant inlet / outlet holes into or out of which the refrigerant introduced from the receiving space is introduced or discharged, a plurality of inlet / outlet pipes respectively connected to the plurality of refrigerant inlet / outlet holes and through which the refrigerant is introduced or discharged from or to the boss, and a gasket having an open cavity formed therein to selectively open one refrigerant inlet / outlet hole and a connection cavity formed therein to selectively connect two refrigerant inlet / outlet holes.

This application relates to a rice steaming bag and cooking device. The rice steaming bag includes a main body and a lid. The main body has an open placement cavity. The main body includes a circumferential surface defining the placement cavity. The circumferential surface includes a sealing layer, a gel layer, and a breathable layer arranged sequentially from the outside to the inside. The sealing layer is made of a sealing material, the gel layer is made of hydrogel, and the breathable layer has vents communicating with the placement cavity. The gel layer is exposed to the placement cavity through the vents. The lid is placed on the main body and covers the open cavity when the lid is closed. The end faces of the main body (excluding the circumferential surface) and / or the end faces of the lid have vents communicating with the outside. This solution can be applied to microgravity environments, such as space, to steam rice in a microgravity environment. Only washed rice grains need to be placed in the rice steaming bag beforehand; no additional water is needed, making the rice steaming process convenient and simple.