81results about How to "Avoid compression" patented technology

The embodiment of the invention provides a singing video generation method and device, electronic equipment and a storage medium, after target music is generated through a target application program, a release page corresponding to the target music is displayed, and a video generation control used for generating a singing video matched with the target music is configured in the release page; in response to a first trigger operation for the video generation control, displaying a first video generation page in the target application, the first video generation page being configured to display at least one video material; and in response to a second trigger operation for the first video generation page, determining a target video material, and generating a singing video based on the target video material, the mouth shape action of the target object in the singing video being matched with the music content of the target music. According to the method and the device, the'mouth-to-mouth 'video matched with the target music is generated, the process is realized without other three-party software, and the generation efficiency of the singing video is improved.

The invention relates to the technical field of variable-capacity mechanical pumps, in particular to a rotary-vane vacuum pump which comprises a pump shell, a rotor, rotary vanes and an adjusting frame, a pump cavity is formed in the pump shell, the rotor is eccentrically arranged in the pump cavity and can rotate around the axis of the rotor, the multiple rotary vanes are distributed in the circumferential direction of the rotor at intervals and elastically connected to the rotor, and the adjusting frame is arranged in the pump cavity. The rotary vanes can elastically slide in the radial direction of the rotor. The adjusting frame is arranged, the abrasion loss of the two side portions of the rotary vane is smaller than that of the middle portion of the rotary vane through the adjusting frame, the two side portions of the rotary vane are always attached to the inner wall of the pump cavity in a sliding mode, and therefore under the action of the inner wall of the pump cavity, the abrasion loss of the two side portions of the rotary vane is larger than that of the middle portion of the rotary vane. Therefore, the abrasion loss of the two sides and the middle part of the rotary vane is basically consistent, the problem that the rotary vane cannot be attached to the inner wall of the pump cavity is solved, and then the problem that the rotary vane cannot effectively compress air is solved.

The invention belongs to the technical field of exoskeleton auxiliary wearing and discloses exoskeleton auxiliary wearing equipment which comprises a girdling part, a positioning ring is rotatably arranged on the outer side of the girdling part, a support is fixedly arranged at the other end of the positioning ring, a knee positioning piece is rotatably arranged in the middle of the support, and a binding assembly is further arranged on the outer side of the support. The binding assembly comprises a baffle fixedly arranged on the side face of the support, a fixing plate is arranged on the outer side of the baffle in an attached mode, binding plates are arranged at the two ends of the fixing plate in an attached mode, and elastic plates attached to the baffle and the fixing plate are fixedly arranged on the left sides of the binding plates. After being clamped into the legs of a healthy person, the binding plates are rotationally clamped to the baffles on the surface of the support for rapid positioning, the binding plates are easy to assemble and operate, and in the using process, the clamped binding plates are spaced through the additionally arranged filling plates, so that the ventilation effect can be improved while the legs are prevented from being pressed.

The invention provides an experimental device for simulating migration of micro-plastic in an undisturbed soil column under a rainfall condition and application, and belongs to the technical field of soil micro-plastic migration. Comprising a Markov bottle and a simulated soil column, the right side of the upper end of the Markov bottle is provided with a water inlet with a stainless steel cover, and the left side of the upper end of the Markov bottle is provided with an exhaust pipe with scale marks on the surface; the bottom of the Markov bottle is higher than the top of the simulated soil column rainfall tray; the simulated soil column comprises a rainfall disc and a column body arranged below the rainfall disc, the rainfall disc is of a dial type, exhaust holes are formed in the surface of the rainfall disc, a needle head is arranged in the rainfall disc, and the rainfall disc is connected with the upper end of the column body through a flange plate; the column body is divided into an air layer, an undisturbed soil column filling layer and a quartz sand layer which are sequentially connected through flange plates, a water outlet is formed in the bottom of the flange plate at the lower end, and the column body is a hollow cylinder with an upper opening and a lower opening.

The present application relates to a backwash water and air distribution filter brick and a water and air distribution device for a sulfur autotrophic denitrification filter tank, and relates to the technical field of sewage treatment equipment. The backwash water and air distribution filter brick for the sulfur autotrophic denitrification filter tank in the present application includes a bottom plate, a first side plate, a second side plate and a partition plate, forming a primary distribution chamber for backwash water, a secondary distribution chamber for backwash water and a secondary distribution chamber for backwash air, and realizing uniform water and air distribution through multiple through holes and a secondary particle retention component. The present application also provides a backwash water and air distribution device comprising the above-mentioned backwash water and air distribution filter brick. The structural design in the present application reduces the loss of sulfur autotrophic slow-release materials, reduces the risk of filter brick clogging, improves backwash efficiency, and at the same time reduces the construction depth of the filter tank, saving investment.

The utility model relates to electric power pipe technical field especially a kind of recycled material CPVC electric power pipe, including first straight pipe and round block, the inner wall front of first straight pipe is fixedly connected with the outer wall of round block, the outer wall of round block is processed with multiple through ports, the upper end surface of first straight pipe is connected with protective structure, the outer wall rear of protective structure is connected with sheath, through the front and rear movement of second straight pipe in protective structure, it will be the front and rear sliding of sleeve plate in the outer wall of curved plate, curved plate and sleeve plate will change with the length change of telescopic pipe, while curved plate cooperates sleeve plate will shield the top of telescopic pipe, prevent soil directly to hold telescopic pipe, prevent the fracture of electric power pipe and telescopic end connecting place, avoid the soil in the inside of electric power pipe.

The invention discloses a quick-install assembly of a tool assembly for a lawn aerator, the main points of which are: comprising a hanging foot fixing seat, a pressing seat and a locking device; one end of the pressing seat is rotatably connected and arranged on the hanging foot fixing seat, the pressing seat can be rotated to open or close, and when closed, the other end forms a limited fixed connection with the hanging foot fixing seat through the locking device; the left end of the tool assembly is rotatably arranged in the hanging foot fixing seat and the pressing seat, and the left end of the tool assembly is detachably arranged in the hanging foot fixing seat and the pressing seat. The quick-install assembly of the tool assembly for a lawn aerator of the invention has a simple structure and is easy to operate. The pressing seat can be opened or closed by one hand, which saves time and effort.

The invention discloses a wide-angle optical lens, which comprises a cambered lens main body, the front view of the lens main body is of a trapezoidal structure with a wide upper part and a narrow lower part, the transverse camber of the lens main body is continuously and gradually changed along the vertical direction and is distributed in a gradient decreasing manner from bottom to top, and meanwhile, the lens main body is in a state of gradually inclining outwards from bottom to top. According to the wide-angle optical lens, through the unique trapezoidal structure and the transverse camber gradient design, the problem that the view field of a traditional lens is narrow and limited is effectively solved, the wide-angle optical lens has the advantages that an inclination compensation mechanism is matched with high-nose-bridge crowds, and the like, and has remarkable advantages in the aspects of improving visual experience, guaranteeing safety and the like; the method has important application value in the technical field of optical lenses.

A large language model quantization method based on channel arrangement and activation adaptive smoothing belongs to the technical field of large language model compression and efficient inference. In order to solve the problem that the existing post-training quantization method is difficult to simultaneously consider the difference of different channel activation outliers, the group mode quantization has large dynamic range in the group, and the low bit weight and high bit activation alignment efficiency is low, which leads to the problem of precision decline and inference efficiency limitation, the scheme calibrates the maximum activation amplitude of the input channel by statistical data, divides the significant and non significant activation outlier channels according to the percentile threshold, and respectively uses the logarithmic domain and power function domain smoothing strategy to generate channel smoothing scaling factor, and fuses it into the model parameter to extract the weight multidimensional feature to construct the channel quantization sensitivity index and execute the input channel rearrangement, and further generate the joint quantization scaling factor to realize the integer domain alignment inference. It is suitable for low bit compression deployment and efficient inference scene of large language model in resource limited environment.

The utility model discloses a kind of processing boxes, including the photosensitive unit with waste powder discharge passage and the carbon powder container with waste powder storage part, waste powder storage part has waste powder inlet, waste powder in photosensitive unit can be into waste powder storage part via waste powder discharge passage and waste powder inlet;Waste powder discharge part, it is set to reciprocatingly move in waste powder discharge passage, and then waste powder is discharged from waste powder discharge passage to the waste powder inlet of waste powder storage part;Compared with prior art, the utility model uses the waste powder discharge part that can reciprocate, transmission is carried out by intermittent pushing developer, avoid persistent friction and compression developer, to avoid the situation that developer appears local accumulation or caking, to realize the continuous stable output of developer.

The utility model relates to the technical field of battery cover plates, and discloses a lower plastic part and pole installation ventilation structure and a battery cover plate, the lower plastic part and pole installation ventilation structure comprises a top cover sheet, a lower plastic part and a pole, the pole penetrates through the lower plastic part and the top cover sheet, a connecting sheet is formed at the bottom of the pole, a surrounding area is formed at the bottom of the lower plastic part, and the top cover sheet is provided with a through hole. The connecting piece is embedded in the enclosure area, and a ventilation notch is formed in the periphery of the enclosure area and communicates with the enclosure area; according to the ventilation structure for installing the lower plastic part and the pole, in the process of installing the pole, the pole penetrates through the lower plastic part and the top cover piece, the connecting piece is embedded into the enclosed area, and in the process of embedding the connecting piece into the enclosed area, air in the enclosed area can be exhausted through the ventilation notch, so that the ventilation effect is improved. And air in the enclosed area is prevented from being compressed to form larger pressure, so that the pole column is convenient to install.

The invention discloses a watershed block grid division method and device, and relates to the technical field of aircraft design, and the method comprises the steps: constructing a complete entity model according to a design demand; wherein the complete entity model comprises a gap basin entity model, a body aerodynamic configuration entity model and an outer basin entity model; setting surface mesh division parameters, and performing surface mesh division on the complete solid model based on the surface mesh division parameters to obtain a surface mesh model; setting a boundary layer in an outer watershed of the surface mesh model, setting division parameters of an inner mesh of the boundary layer to perform volume mesh division, and generating a volume mesh model; and importing the volume mesh model into fluid dynamics software, and setting drainage basin communication and flow conditions for analogue simulation to obtain an aerodynamic data set. The problem that in the prior art, dividing of unstructured grids has high requirements for experience of technicians, and the calculation result is likely to be completely incredible is solved. The accuracy and the reliability of a pneumatic calculation result can be improved.

The utility model provides a kind of civil aircraft suitcase hinge, comprising: rocker arm and base, rocker arm below is provided with mounting hole and camshaft, base below is rotatably installed with threaded adjusting shaft, another end of threaded adjusting shaft is rotatably installed in the middle of camshaft, the middle part of base is fixedly installed by rocker arm pivot through mounting hole, rocker arm forms four-bar linkage by camshaft and connecting rod, limiting block is integrated in base, set the minimum opening angle of case door.The hinge system of the utility model is through the innovative "axial compression+radial decoupling" design concept, combined with modular adjustable structure, while ensuring high reliability, realizes the accurate control of case door movement and the convenience of installation and maintenance, breaks through the technical bottleneck that aviation level hinge high reliability and small size are difficult to be compatible, has been successfully applied to multiple civil aircraft luggage compartment system, and has the technical versatility of extending to spacecraft hatch mechanism.

The utility model relates to the technical field of arc extinguish chambers, and discloses a vacuum arc extinguish chamber anti-overstretching type aging detection tool, which comprises a support cylinder, a support plate, a connector, an insertion sheet and a limit pin, the support cylinder is in threaded connection with the connector, the support plate is arranged between the connector and the support cylinder, and the insertion sheet is inserted into the support cylinder after the connector is connected with a movable conducting rod. The supporting plate can be synchronously lifted by lifting the connector, at the moment, the insertion piece inserted between the supporting cylinder and the supporting plate and the limiting pins arranged on the two sides of the supporting cylinder act together, the lifting height of the connector is accurately controlled, the connector is effectively prevented from excessively compressing the corrugated pipe, the service life of the corrugated pipe is remarkably prolonged, and the maintenance cost is reduced. According to the utility model, the accuracy and repeatability of detection are improved, the operation process is simplified, the operation difficulty is reduced, the safety performance and adaptability of equipment are enhanced, and the aging detection device is suitable for aging detection of various vacuum arc-extinguishing chambers, and has important significance for improving the overall quality of the vacuum arc-extinguishing chambers and prolonging the service life of the vacuum arc-extinguishing chambers.

The sectional type high-density steel wire reinforcing rib communication optical cable comprises a reinforcing layer, a cable core layer, a waterproof layer and a protective layer, the reinforcing layer is arranged in the center of the communication optical cable; the cable core layer wraps the reinforcing layer and comprises a plurality of cable core units, and each cable core unit comprises a loose tube and a communication optical fiber arranged in the loose tube; the cable core units are distributed on the outer side face of the reinforcing layer in a surrounding mode, and the lengths of the cable core units are different. The waterproof layer wraps the cable core layer. The protective layer wraps the waterproof layer. According to the communication optical cable, the communication optical fibers in the communication optical cable are arranged in a sectional mode, the communication optical fibers are manufactured into different length specifications for cabling according to the distribution positions of the optical fiber sensors in engineering, and the communication optical cable has the advantages of being accurate in opening, easy to weld, convenient and fast to seal and good in sealing performance; waste of communication optical fibers can be effectively avoided, and the protection capability of communication optical cables and the stability of communication signals in environments with complex natural conditions such as islands and reefs are improved.

The invention discloses a vertical variable-pipe-diameter rotary dry-type evaporator which is used in the refrigeration industry and comprises a vertical heat exchange unit, and the vertical heat exchange unit comprises an inner shaft and a rotary disturbance body which is driven by a motor and rotates around the inner shaft; the rotary disturbance body comprises an outer shaft and a plurality of heat exchange tubes, the outer shaft coaxially sleeves the inner shaft, and the heat exchange tubes are fixedly arranged on the outer side of the outer shaft in parallel at intervals; at least two heat exchange pipes are arranged in the same radius direction of the vertical heat exchange unit, and the pipe diameters of the heat exchange pipes are gradually increased from inside to outside; a refrigerant inlet is formed in the bottom of the inner shaft, and a refrigerant outlet is formed above the inner shaft An opening is formed between the inner shaft and the outer shaft and serves as a flowing opening of a refrigerant; the outer shaft is connected with each heat exchange tube through a liquid distribution tube and a gas collection tube; both the inner shaft and the outer shaft are provided with axial partitions; and gaps are formed between the baffle plates and the inner wall of the shell. The device is small in occupied space, and the heat exchange effect of the heat exchange pipe and chilled water is greatly improved through rotation and winding of the rotary disturbance body.

The utility model discloses a tool plate for drawing surveying and mapping, which relates to the field of surveying and mapping and comprises a first plate body, one side of the first plate body is connected with a second plate body through a hinge, and the top of the first plate body and the top of the second plate body are respectively provided with a paper pressing assembly. The paper pressing assembly comprises two first rotating shafts arranged at the tops of the first plate body and the second plate body through bearings, and the outer walls of the first rotating shafts are sleeved with first rotating plates. By arranging the paper pressing assembly, when a drawing needs to be pressed, a user can firstly screw the bottom end of a first limiting screw rod into a first rotating shaft and then screw the bottom end of a second limiting screw rod into a second rotating shaft, at the moment, the user can pull a pull rod upwards to enable a pressing block to move upwards, and meanwhile a first rotating plate or a second rotating plate is rotated; and when the pressing block rotates to the edge position of the drawing, the user loosens the pull rod, and at the moment, the reset spring is stretched to push the pressing block to move downwards, so that the pressing block presses the drawing.

The utility model discloses a safe feeding cover and a noodle press. The safe feeding cover comprises a first cover body and a second cover body, wherein a first feeding channel is formed in the first cover body; the first cover body and the second cover body are arranged in the feeding direction, and a second feeding channel is formed in the second cover body; wherein the first feeding channel is communicated with the second feeding channel, and the inner diameter of the first feeding channel is gradually increased in the direction close to the second feeding channel. According to the dough press disclosed by the utility model, the inner diameter of the first feeding channel is gradually increased along the direction close to the second feeding channel, so that the dough obtains a larger moving space along with the increase of the pushing depth, the dough is prevented from being stacked and pressed in the first feeding channel, and the feeding fluency of the dough press is improved.

The invention relates to the technical field of fishing lamp design, and discloses a multi-lens condensation type remote control fishing lamp which comprises a fishing lampshade barrel and a fishing lamp body, a waterproof connecting frame is arranged at the bottom of the fishing lampshade barrel, the fishing lamp body is arranged at the bottom of the waterproof connecting frame, and a bottom protection cover is arranged at the bottom of the fishing lamp body. The upper end and the lower end of the wall board of the fishing lamp body are each provided with a set of portable hanging rings. The multiple sets of lenses at the output end of the lamp bead assembly are fixedly arranged, the traditional mode that a whole light outlet lens component is adjusted to stretch out and draw back to achieve light condensation or light diffusion treatment is changed, air in the fishing lamp is prevented from being compressed or expanded, and optical elements in the fishing lamp are effectively protected; according to the equipment, the mounting position of the optical lens is not changed, it can be effectively guaranteed that the center gravity of condensed light or scattered light cannot be changed, the mounting angle of the fishing lamp does not need to be adjusted again during condensed light and scattered light adjustment, and the use convenience of the fishing lamp is improved.

The invention relates to the technical field of power distribution boxes, in particular to a power distribution box based on multiple trigger type circuit protection and a control method thereof.The power distribution box comprises a box body, a master control switch and a circuit breaking unit, and a shifting rod is arranged on the master control switch; the box body is provided with an indicating lamp. The circuit breaking unit comprises a stirring frame, a bidirectional motor, a straight gear, a transmission assembly, a clutch assembly and a crank. The stirring frame is movably arranged in the box body in the vertical direction, and a plurality of meshing teeth are vertically and uniformly arranged on the side wall of the stirring frame; the bidirectional motor is horizontally arranged on one side of the shifting frame; the straight gear is fixedly arranged at the output end of the bidirectional motor and is meshed with the meshing teeth of the shifting frame; the transmission assembly is arranged on the straight gear, and the transmission assembly and the straight gear are in two-way transmission; the clutch assembly is arranged on the transmission assembly; the crank is arranged on the clutch assembly. According to the invention, automatic power-off and manual power-off are combined, the occupied space of the distribution box is reduced, and the operation safety of workers is ensured.

The invention discloses a spacing-adjustable fertilizing device, relates to the technical field of fertilizing equipment, and provides the following technical scheme that the spacing-adjustable fertilizing device comprises a machine body, a connecting seat is mounted on one side of the machine body, hydraulic rods are mounted on the two sides of the connecting seat, and the other ends of the hydraulic rods are rotationally connected with adjusting sliding rails; a plurality of shells are installed on the adjusting sliding rail in a sliding mode, adjusting racks are symmetrically installed in the shells in a sliding mode, a driving gear is rotatably installed between the adjusting racks, fertilizer applying pipes are installed on the adjusting racks, fertilizer applying amount adjusting assemblies are arranged on the fertilizer applying pipes, and a material uniformizing assembly is arranged above the adjusting sliding rail. By adjusting the distance between the shells and moving the adjusting racks in the same group, the fertilizing pipes can adapt to different planting intervals, the fertilizing amount adjusting assembly controls the fertilizing amount through the hardness of soil on the two sides of plants during moving, and fertilizer is not accumulated through the material uniformizing assembly.

This application belongs to the field of artificial intelligence and healthcare technology, specifically disclosing a multi-memory large model enhancement method and system based on adaptive resonance theory. The method includes: obtaining memory units from the plot memory module based on a new medical dialogue event; processing the new medical dialogue event through a large model based on multi-source memory; multi-source memory is constructed based on information stored in memory units, working memory modules, and semantic memory modules; the plot memory module is used to: determine candidate plot prototypes by analyzing attribute similarity; determine whether there is resonance between the new medical dialogue event and the candidate plot prototype; if there is resonance, use historical dialogue events in the event set of the resonant plot prototype as memory units and update the resonant plot prototype; if there is no resonance, create a new plot prototype. This application enables effective memory management and improves the stability and accuracy of large model reasoning in medical dialogue scenarios.

The invention discloses a convolutional neural network acceleration method and system based on pulsation data flow and sparse perception, and relates to the technical field of neural networks. The method comprises the following steps: constructing a convolutional layer acceleration device of a sparse convolutional neural network; and performing acceleration processing on the convolutional layer in the sparse convolutional neural network by using the convolutional layer acceleration device. According to the method, invalid calculation of sparse convolution can be effectively reduced, convolution layer calculation of the sparse convolutional neural network is accelerated, and the recognition speed of the sparse convolutional neural network in the field of image recognition is accelerated.

The utility model discloses a waste collecting device for garment manufacturing, which belongs to the technical field of garment manufacturing and comprises two vertical plates, a bottom plate arranged at the upper end of the vertical plate on one side, a supporting plate arranged on the lower side of one end of the vertical plate on one side, a collecting box arranged at the upper end of the supporting plate, and a pressing plate arranged on the upper side of the collecting box. A lifting mechanism is arranged on one side between the supporting plate and the bottom plate, the pressing plate is connected with the lifting mechanism through a connecting rod, and a sliding groove corresponding to the connecting rod is formed in one end of the collecting box. The first bevel gear drives the lead screw to rotate in the first rectangular groove through the second bevel gear, the lead screw rotates to drive the sliding base to slide in the first rectangular groove, the sliding base moves to push the movable door to rotate on the vertical plate through the rotating rod, the movable door rotates to conduct discharging work, the stability of the movable door is higher by arranging the driving assembly, and the movable door is prevented from rotating automatically.

The invention relates to a valve unit having a valve sleeve through which a tappet can be guided in order to connect and disconnect individual valve openings in the valve sleeve, and a spring element which is designed to apply an elastic restoring force to the tappet, the valve sleeve having a first sleeve and a second sleeve, the second sleeve at least partially bears against the outer surface of the first sleeve, the first sleeve is made of a metal material, the second sleeve is made of a plastic material, the first sleeve has at least one first through-opening which extends at least partially in the radial direction, and the second sleeve has at least one second through-opening which extends at least partially in the radial direction, the first through-opening and the second through-opening are designed in fluid communication to form a valve opening, the first end element is arranged on a first axial end of the second sleeve, and the first end element is designed as a stop for the push rod, and the second end element is arranged on a second axial end of the second sleeve. In order to stop the movement of the push rod in the compression direction of the spring element before the maximum compression of the spring element is reached.

The invention relates to the technical field of sealing ring installation, in particular to an air compressor sealing ring feeding device which comprises an installation base and a piston rod conveying belt movably installed on the installation base, a gantry installation frame is fixedly installed at the top of the installation base, and a first electric push rod is fixedly installed at the top of the gantry installation frame. The structure formed by the adjustable inclined supporting plate and the limiting rotating plate is like a guide rail, the sealing ring can be helped to be deformed and sleeved in the correct direction, the sealing ring can be more easily aligned with the piston rod, the trouble of repeated adjustment caused by position deviation in the installation process is reduced, and in the installation process, the sealing ring is not prone to deformation. The sealing ring is easily damaged due to excessive stretching, twisting or scraping with the surface of the piston rod, the structure formed by the adjustable inclined supporting plates and the limiting rotating plates can enable the deformation process of the sealing ring to be more uniform and gentle, the sealing ring can be prevented from being excessively stretched or compressed at a certain point, and the service life of the sealing ring is prolonged. Therefore, the conditions of local damage, tearing and the like are avoided.

This invention discloses a three-stage displacement-related friction energy dissipation device and method, comprising a nested layer consisting of an integrally formed U-shaped outer layer and an I-shaped inner layer, with long friction blocks and U-shaped concave surfaces respectively on the U-shaped outer layer and the I-shaped inner layer; it also includes an intercalation layer with short friction blocks and arc-shaped protrusions corresponding to the long friction blocks and U-shaped concave surfaces. The two arms of the intercalation layer are inserted into the gap between the long friction blocks and U-shaped concave surfaces of the U-shaped outer layer and the I-shaped inner layer of the nested layer, and slide relative to the nested layer to achieve the first level of limiting; a second level of limiting is achieved by a screw sequentially penetrating the nested U-shaped outer layer, the intercalation layer, and the I-shaped inner layer. This invention achieves three-stage variable stiffness friction adaptive energy dissipation by providing constant friction force during the small displacement stage, exponentially increasing friction force during the medium displacement stage, and mechanically limiting and locking during the large displacement stage, which can better adapt to the differentiated requirements of structures for damping force and stiffness under earthquakes of different intensities.

The invention belongs to the technical field of oatmeal drying, and particularly relates to an oatmeal drying device which comprises a base and two microwave machines, a conveying belt is assembled on the base, parallel sliding frames are assembled in a mounting cover in a left-right sliding mode, a rotating shaft is rotationally assembled on one side of each sliding frame, and a sealing ring is rotationally assembled on the outer surface of an annular groove. The inner wall of the annular groove is provided with a plurality of through holes communicating with the cavity, the cavity is provided with two rotating plates in a sealed rotating mode, the through holes are located between the two rotating plates, the sides, away from each other, of the two rotating plates communicate with distribution covers with downward openings, and the opening sides of the two distribution covers are in sealed sliding connection with the inner wall of the cavity. The side, away from the rotating shaft, of the sliding frame is provided with a fixing rod which penetrates through the pressing wheel and is fixedly connected with the distribution cover, the left side and the right side of the cavity are each provided with a plurality of through grooves matched with the distribution cover, ejector blocks are assembled in the through grooves in a sealed and sliding mode, springback mechanisms matched with the ejector blocks are arranged in the through grooves, and pressure relief holes are formed in the middles of the ejector blocks.

The invention relates to the technical field of VR, provides a safe area ground generation method and virtual reality equipment, and is used for improving the generation efficiency and quality of a safe area. According to the method, screening simplification is carried out on the basis of inflection points for an original boundary point set when a user demarcates a safe area through rays emitted by a handle, so that the generation efficiency of the safe area ground is improved. And before the safe area ground is rendered, the triangular ground rendering grid is generated according to the centroid point of the geometric shape defined by the simplified target boundary point set and every two target boundary points, so that the normalization of the ground rendering grid is improved, and the generation requirement of the safe area ground with a complex shape can be met. On the other hand, the UV coordinates of texture sampling are calculated through the range of the ground texture map and the position coordinates of the ground rendering grid points, the problem of texture compression or stretching when the ground texture map is inconsistent with the ground of the safety area in size is solved, and the ground display quality of the safety area is improved.

[Problem] To ensure heating capacity while preventing liquid compression in a compressor even when the outside air temperature is particularly low. [Solution] Provided is an air conditioning device for a vehicle, comprising a refrigerant circuit for circulating a refrigerant, the refrigerant circuit having a compressor, a condenser, an expansion unit, an evaporator, and a gas-liquid separation unit connected in this order through refrigerant piping, the refrigerant circuit comprising: a first bypass flow path through which the refrigerant flows; a flow path through which the refrigerant discharged from the compressor flows into the inlet side of the gas-liquid separation unit; and an internal heat exchanger that exchanges heat between the refrigerant flowing from the gas-liquid separation unit to the compressor and the refrigerant flowing out from the condenser.