12results about How to "Reduce cavities" patented technology

The utility model discloses an office chair which comprises a seat cushion, armrests detachably arranged on two sides of the seat cushion, a backrest detachably arranged on the back of the seat cushion, a waist cushion detachably arranged at the lower end of the front side of the backrest, a headrest detachably arranged at the upper end of the backrest and a bracket assembly detachably arranged at the bottom of the seat cushion, a mounting frame used for connecting the backrest and the seat cushion is arranged on the rear side of the seat cushion, the mounting frame and the waist cushion are detachably connected through a clamping assembly, the clamping assembly comprises a splicing block arranged on the back face of the waist cushion, and a fixing block corresponding to the splicing block is arranged on the front side of the mounting frame; splicing protrusions are arranged on the edges of the two sides of the fixing block. According to the office chair, the waist cushion is detachably arranged at the lower end of the front side of the backrest through the clamping assembly, installation is convenient and fast, efficiency is improved, the installation frame, the seat cushion, the support assembly, the headrest and the backrest are detachably connected, the packaging size of the office chair is greatly reduced, and cavities in packaging are greatly reduced.

The invention relates to the technical field of medical instruments, in particular to a flusher and application thereof in ear canal treatment, the flusher comprises a needle tube and a liquid pushing column in sliding fit with the needle tube, one end of the needle tube is movably sleeved with a sleeve, a liquid outlet is formed in the side wall of the end, away from the liquid pushing column, of the sleeve, and a rotary pushing assembly is arranged between the needle tube and the liquid pushing column; and the sleeve is connected with the rotary propelling assembly, and the sleeve extends into the ear canal while rotating under the action of the rotary propelling assembly, so that the cleaning liquid in the needle tube rotatably flushes the inner wall of the ear canal through the liquid outlet. The sleeve rotates and extends into the ear canal under the action of the rotary propelling assembly, so that the cleaning liquid in the needle tube rotatably flushes the inner wall of the ear canal through the liquid outlet, the impact force of the cleaning liquid on the inner wall of the ear canal is guaranteed, a large amount of liquid medicine is prevented from entering the interior of the ear canal instantly, and the medicine applying frequency is reduced.

The application discloses a repairing method for a large-depth-ratio metal narrow-slot over-cutting and over-difference, which comprises the following steps: 1) cutting to obtain a repairing sheet; 2) milling the repairing sheet; 3) spraying a layer of powdered filler metal on a bonding surface of the repairing sheet to form a filler metal layer; 4) milling or grinding the filler metal layer to make the thickness of the filler metal layer meet the brazing gap requirement; 5) processing a pad; 6) pre-preparing filler metal at each inclined chamfer of the repairing sheet, loading the repairing sheet into the narrow slot, loading the pad into the narrow slot, and tightly fixing the repairing sheet; 7) supplementing the filler metal; 8) performing high-temperature vacuum brazing; and after the welding is completed, processing the pad and the repairing sheet to remove the quantity and restore the narrow-slot size required by the design. The brazing strength is improved by pre-preparing the filler metal through thermal spraying and by thermal expansion difference, the narrow slot is repaired under the condition that the welding strength meets the requirement, and the production cost is effectively saved.

The invention relates to the technical field of sealing devices of wine brewing fermentation containers, and provides a cellar cover capable of ascending and descending along with materials in a cellar and a use method of the cellar cover. Comprising a cellar cover body, and the cellar cover body is provided with a cellar cover top plate, a first cellar cover side plate and a second cellar cover side plate which are arranged in an arc shape; wherein the first cellar cover side plate and the second cellar cover side plate are obliquely arranged towards the cellar cover top plate; a vertical plate is arranged below the cellar cover body, and the vertical plate is formed by vertical extension of the cellar cover top plate, the first cellar cover side plate and the second cellar cover side plate; a sealing square pipe is attached to the outer side of the vertical plate. The pit cover has the beneficial effects that when the pit cover is used, along with the addition or reduction of materials in the pit, when the pit cover body is placed on the fermentation materials again, the position of the pit cover in the pit rises or falls along with the increase or reduction of the materials, so that the sealing effect of the fermentation environment of the pit is effectively improved, and the yield and the quality of base liquor are ensured.

The invention discloses a gas sampling and filtering device which comprises a device shell, a water storage cavity and a gas guide tube cavity which are separated from each other are formed in the device shell, a gas inlet and a gas outlet are formed in the two ends of the gas guide tube cavity respectively, a filtering structure layer is arranged between the gas outlet and the gas guide tube cavity, and a water absorption structure layer is arranged on the filtering structure layer in an attached mode; gas enters the gas guide pipe cavity from the gas inlet, the filtering structure layer is used for filtering moisture in the gas, and the water absorption structure layer is used for absorbing the moisture and conveying the moisture to the water storage cavity. The device isolates communication between the filtering water storage cavity and the gas sampling channel, sampled gas directly passes through the filtering device without passing through the water storage cavity and enters a sampling calculation instrument, and the sampling calculation precision is improved; in addition, the filtering water storage cavity can be infinitely large theoretically, the shape and the size of the whole device are not limited, the device can be conveniently replaced, and the water storage cavity is lengthened and expanded, so that the service life of the device is long, the medical cost is reduced, and the device is beneficial to patients.

The invention discloses a new energy automobile vehicle-mounted voice assistant installation stabilizing structure based on a lightweight framework. Comprising a central control panel, a main driving instrument board fixedly installed at one end of the central control panel, a co-driving box board fixedly installed at the other end of the central control panel, a co-driving sealing cover board installed at the top of the co-driving box board through an adhesive and located at the same height as the central control panel, and a main driving instrument board installed on the co-driving instrument board in a clamped mode. And an instrument cover plate is arranged at the top of the central control panel and the co-driver sealing cover plate. And auxiliary display screens are fixedly mounted on the central control panel, the main driver instrument panel and the co-driver sealing cover plate. A voice assistant recognition electric control assembly is installed in the auxiliary display screen. A center console is fixedly installed on the front face of the center control panel, and a sealing box body is integrally installed at the position, opposite to the center console, of the center control panel. And a radio array assembly is fixedly mounted in the sealed box body. The method has a certain directional sound receiving effect, so that the recognition accuracy of a voice assistant is ensured, and the sound signal conversion accuracy is also ensured.

The present invention discloses a carbon material, a composite negative electrode material and a lithium ion battery, and relates to the technical field of negative electrode materials and secondary batteries. The carbon material disclosed in the present invention has a bowl-shaped structure and has pores, wherein the pores include mesopores, and the pore volume of the mesopores accounts for ≥78% of the pore volume of the carbon material as 100%, and the total pore volume of the carbon material is 0.49~0.9 cm 3 / g. The present invention helps to increase the volume energy density of the negative electrode material prepared from the carbon material by regulating the structure of the carbon material. In addition, the inner and outer surfaces of the carbon material can be exposed to provide more active sites for the deposition of active substances such as silicon, and a certain buffer space can be provided for the expansion of active substances such as silicon, so that the negative electrode material prepared from the carbon material can achieve a balance between volume energy density, capacity and cycle performance, further expanding the application scope of the carbon material.

The invention relates to the field of wind power equipment, and discloses a method and system for eliminating bubbles between pouring layers of a pultrusion beam of a wind power blade. Comprising a main mold, a continuous felt, an outer skin, a pultrusion beam, an inner skin, first demolding cloth, a porous film, a first flow guide net, a VAP film, second demolding cloth located between the continuous felt and the VAP film, a second flow guide net and pultrusion beam side runners located on the rear edge and the front edge of the pultrusion beam. The continuous felt, the outer skin, the pultrusion beam, the inner skin, the first demolding cloth, the porous film and the first flow guide net are sequentially arranged in the main mold from bottom to top; the VAP film comprises an axial VAP film and a chordwise VAP film, and the axial VAP film is laid below the continuous felt and is flush with the front edge side of the continuous felt; one end of the chordwise VAP film is lapped with the axial VAP film, and the other end of the chordwise VAP film is lapped with the second flow guide net; and the second flow guide net is positioned on the flange platform of the main mold and completely covers the mold front edge extraction opening. By accurately controlling the straightness of the pultrusion sheet and optimizing the continuous felt layout and the pouring process, bubbles are effectively reduced.

This application discloses a packaging device for processing dairy cow concentrate supplements, relating to the field of concentrate supplement processing technology. The device includes a plate body with a support frame, two clamping mechanisms, and a shaking mechanism fixedly installed on its top surface. The two clamping mechanisms and the shaking mechanism are located inside the support frame. A storage tank is fixedly installed on the top surface of the support frame. The clamping mechanism includes a fixing plate, which is fixedly installed on one side of the top surface of the plate body. By setting two symmetrically distributed clamping mechanisms, and using multiple pull plates on both sides to pull the bag opening in conjunction with baffles, the opening of the packaging bag can be opened, facilitating the filling of the packaging bag with concentrate supplements and improving the usage effect. The shaking mechanism shakes the packaging bag containing the concentrate supplements, making the concentrate supplements inside more compact, reducing the cavity at the bottom of the packaging bag, and improving the packaging effect.

The utility model relates to the technical field of aluminum electrolytic capacitors, in particular to a compression-resistant aluminum electrolytic capacitor structure, which comprises a shell, a capacitor body, a movable plate and a tension component. The shell is provided with a sealing cover in sealing fit with the opening of the shell, the capacitor body is located in the sealing cover, pins of the capacitor body penetrate through the sealing cover and are in sliding connection with the sealing cover, and the capacitor body abuts against the sealing cover in a sealing mode. The movable plate is elastically and slidably arranged in the shell through the tension assembly, a liquid heat conduction agent is poured into the lower half area of the movable plate in the inner cavity of the shell, the bottom of the capacitor body abuts against the movable plate, a through hole is formed in the movable plate, and an oil sealing film is arranged in the through hole. According to the utility model, the heat-conducting medium and the spiral heat-conducting plate are utilized to conduct the heat generated by the capacitor body to the shell for heat dissipation, so that not only is a good pressure-resistant function achieved, but also efficient heat dissipation of the capacitor body can be maintained at the same time.

The utility model provides a valve positioner, and belongs to the technical field of explosion suppression of valve positioners. The valve positioner comprises a shell and a feedback shaft assembly, the feedback shaft assembly comprises a bearing mechanism, a first main shaft and a second main shaft, the first main shaft and the second main shaft can be kept static relatively, the first main shaft and the second main shaft are configured to be of independent forming structures respectively, the bearing mechanism is connected with the shell, and the second main shaft is connected to the bearing mechanism. The first main shaft is provided with a feedback part protruding out of the first main shaft in the radial direction, the feedback part is used for feeding back the position of the feedback shaft assembly, and the end, deviating from the first main shaft in the axial direction, of the second main shaft is connected with an actuator matched with the valve positioner so that the feedback part can feed back the position of the actuator. According to the valve positioner, the production cost of the valve positioner can be reduced, and the explosion-proof performance of the valve positioner can be improved.

The invention belongs to the field of oral care products, and particularly relates to preparation of anti-allergy and anti-caries whitening toothpaste. According to the invention, herbaceous plants are mixed, the mixed extracting solution is extracted, and components in the extracting solution can be combined with apatite in teeth, so that the toothpaste has the effects of resisting acid and preventing tooth decay. In addition, catechin in the green tea can reduce the existence of streptococcus mutans, slow down tooth decay and remove smelly breath. Lentinan contained in the lentinus edodes is beneficial for preventing bacteria in the oral cavity from producing dental plaque. In addition, the Ti / Zn-Ox prepared by using the Ti / Zn metal organic framework has a large specific surface area, and can well adsorb bad breath. When being used in the subsequent toothpaste preparation process, the antibacterial whitening effect can be achieved, and the high specific surface area is matched with the subsequent mixed dry powder to synergistically achieve the anti-allergy and anti-caries effects.