58results about How to "Reduced comfort" patented technology

The invention discloses a road user track and behavior prediction method in a dense heterogeneous traffic environment, and the method comprises the steps: carrying out the target detection and recognition of each road user in a video image sequence frame based on a deep convolutional neural network, and taking a recognition result as a road user type constraint; taking the detected and identified track coordinates and timestamp information of the road user as historical track information of the road user; according to the method, on one hand, a traffic map sequence of a target road user per second within a tf time period after a timestamp t is obtained through prediction, the traffic map sequence is subjected to spectral clustering and then serves as a map regularization constraint in a regularization loss function form to be used for correcting future trajectory coordinates of the road target user output by semi-supervised pipeline prediction; and on the other hand, entering a logistic regression function network after passing through a full-connection network, and outputting the behavior prediction type of the road user. According to the method, the track and behavior of the road user can be accurately predicted in a dense heterogeneous traffic environment.

The invention provides compositions and methods for achieving storage stable aceclidine. The compositions preferably comprise aceclidine, a cycloplegic agent, a surfactant, a tonicity adjuster and optionally a viscosity enhancer and an antioxidant. The invention further provides methods for treating refractive errors of the eye with a storage stable aceclidine composition.

The utility model relates to the technical field of flow guide of automobile air conditioners, in particular to a flow guide structure of an automobile air conditioner, which comprises a volute (1), and a flow guide structure is arranged at an air outlet of the volute (1). An air outlet duct is separated at the air outlet of the volute by the flow guide structure; the air flow gathering can be effectively avoided; the contact area between the air flow and the evaporator is more uniform and larger when the air flow reaches the evaporator, the refrigeration efficiency of an automobile air conditioner can be improved, the temperature of an air outlet is more uniform, and the comfort of a cabin is improved.

The invention relates to a high-elasticity slipper and a preparation method thereof, and belongs to the technical field of slippers, the high-elasticity slipper comprises a slipper sole and a slipper vamp, one end of the slipper vamp is fixedly installed on one side of the slipper sole, the other end of the slipper vamp is installed on the other side of the slipper sole through a fixing assembly convenient to disassemble and clean, and a kidney-shaped groove is formed in the upper end of the slipper sole. A waist-shaped groove is formed in one end of the slipper sole, an antibacterial and deodorant pad is installed in the waist-shaped groove, a breathable assembly is installed in one end of the slipper sole, an arc-shaped cavity is formed in the slipper vamp, and a supporting assembly is installed at one end of the slipper vamp, when people walk, the telescopic rubber pipe is compressed in a reciprocating mode through the foot, and air in the telescopic rubber pipe is conveyed into an air storage cavity and the arc-shaped cavity; the air is conveyed to the foot through the first air outlet and the second air outlet, the air at the sole is circulated, the air permeability of the slipper is improved, the slipper vamp is separated from the foot by conveying the air to the air bag, and the situation that after long-time use, the slipper vamp is tightly attached to the foot, and the comfort is reduced is avoided.

The utility model discloses an SPC stone-plastic floor with a detachable decorative layer, which comprises an SPC stone-plastic floor main body, an SPC stone-plastic floor decorative layer, an SPC stone-plastic floor silencing cavity, an SPC stone-plastic floor position fixing support column, an SPC stone-plastic floor decorative layer fixing buckle, an SPC stone-plastic floor hollow connecting hole, an SPC stone-plastic floor lower meshing protrusion and an SPC stone-plastic floor upper meshing protrusion. Decorative layer fixing buckles are arranged at the lower end of the SPC stone-plastic floor decorative layer and matched with central control connecting holes of the lower-layer SPC stone-plastic floor, so that the decorative layer is detachable, meanwhile, SPC stone-plastic floor supporting columns are arranged at the bottommost end of the SPC stone-plastic floor, the stone-plastic floor is prevented from shifting in the treading process, and the service life of the SPC stone-plastic floor is prolonged. And meanwhile, the silencing cavity is formed in the stone-plastic floor body, so that part of noise can be counteracted, and noise transmission is reduced.

The invention is suitable for the technical field of vehicles, and provides an automobile seat parameter determination method and device, electronic equipment and a storage medium, and the method comprises the following steps: under a preset driving working condition, obtaining a vibration acceleration and a comfort level score of a seat headrest, and determining a vibration acceleration threshold according to the vibration acceleration and the comfort level score; acquiring a relation curve between the vibration acceleration of the seat headrest and the inherent frequency of the seat; according to the relation curve and the vibration acceleration threshold value, the seat inherent frequency range enabling the vibration acceleration of the seat headrest to be smaller than the vibration acceleration threshold value is determined. According to the method, the shaking of the headrest can be accurately evaluated and predicted in the design stage of the automobile seat, the design modification of the automobile seat is guided, the shaking is reduced, and the comfort is improved.

The utility model relates to the technical field of cerebral hemodynamics, and discloses a treatment appliance for treating senile cerebral insufficiency, which comprises a main body box, and fixing plates are fixedly connected to the front ends of the inner top surface and the inner bottom surface of the main body box. According to the utility model, the connecting pillowcase is arranged on the neck of a patient in a sleeving manner and is fixed at a proper position through a rope belt, and an electric telescopic rod is further started to drive an auxiliary telescopic rod to move, so that a first connecting plate and a second connecting plate drive a massage head to move, effective massage can be realized, blood vessels and muscles around the neck can be stimulated, and blood flow is increased; according to the present invention, the brain blood supply is promoted, such that the insufficient brain blood supply is improved, the appropriate neck massage is beneficial to nerve cell stimulation, nerve conduction promotion, and nerve function and cognitive ability improvement, and the neck massage can help to alleviate the physical and psychological tension, promote relaxation and comfort, and improve the brain blood supply. Reduction of pressure and anxiety state is helpful for improving brain blood supply and enhancing physical and psychological health.

The utility model relates to the technical field of electric power engineering, in particular to an electrical cabinet for electric power engineering, which comprises a fire extinguishing component group arranged at the bottom of an electrical cabinet component group, the fire extinguishing component group comprises a top box body, a rotary cover door is arranged on one side of the top box body, and a grab handle is arranged on the side surface of the rotary cover door. A hanging rod piece is arranged in the top box body, a transverse frame is arranged on one side of the hanging rod piece, and a suspension type dry powder fire extinguisher is arranged on one side of the transverse frame. According to the utility model, when the temperature reaches 70 DEG C, the suspension type dry powder fire extinguisher is triggered to be started, and the suspension type dry powder fire extinguisher sprays dry powder to electronic components in the cabinet body, so that fire behavior on the electronic components can be inhibited in time, the fire behavior can be rapidly controlled, and the situation that the fire spreads to the surrounding area to cause greater economic loss is avoided.

The utility model belongs to the technical field of respiratory protection appliances, and particularly relates to a nose sealing piece and a respiratory protection appliance. According to the technical scheme, the nose sealing piece comprises an attaching face attached to the face of a user and a connecting face used for being connected with a respiratory protection article body. The clinging face comprises a nose bridge part clinging to the nose bridge, the surface of the nose bridge part is in an inwards-concave arc shape, nose wing parts clinging to the nose wings are arranged on the two sides of the nose bridge part, the surface of each nose wing part is in a smooth protruding shape, and face parts clinging to the face are arranged on the sides, away from the nose bridge part, of the nose wing parts. The face part is gradually thinned in the direction away from the nose wing part; the overall structure of the nose sealing part is in an inverted V shape with the nose bridge part as the center. The utility model provides the nose sealing piece and the respiratory protection article which are tighter in sealing, lighter in pressure and more comfortable to wear.

The utility model relates to the technical field of forklifts, in particular to a forklift tailstock which comprises a tailstock body, the tailstock body comprises a bottom plate assembly and structural plate assemblies fixed on the periphery of the bottom plate assembly, the bottom plate assembly comprises a first fixing plate and a second fixing plate, square steel is connected between the first fixing plate and the second fixing plate, and the structural plate assemblies are fixed on the bottom plate assembly. The first fixing plate, the square steel and the second fixing plate are connected into a zigzag shape. When the bottom plate assembly is used, the bottom plate assembly is arranged to be in the folded shape formed by connecting the first fixing plate, the square steel and the second fixing plate, and compared with an existing bottom plate assembly, the first fixing plate connected with a vehicle body is lower than the existing bottom plate assembly, so that the purpose of reducing the height of the whole vehicle is achieved; the situation that the comfort of a driver is reduced due to reduction of the height of the overhead guard is avoided, the height of the second fixing plate is equal to that of an existing bottom plate assembly, the use specification of tires is guaranteed, and the problem that the bearing capacity of a whole vehicle is reduced due to replacement of small tires is avoided.

The invention discloses a novel skin and venereal disease checker device which comprises a U-shaped fixing rod, the two ends of the U-shaped fixing rod are fixedly connected through a connecting rod, supporting rods are movably inserted into the two ends of the U-shaped fixing rod, L-shaped guide rods are fixedly installed on the surfaces of the supporting rods, and the supporting rods are fixedly connected with the L-shaped guide rods through supporting plates. Directional wheels are fixedly mounted at the bottoms of the supporting rods and the bottoms of the L-shaped guide rods; it is worthy that one end of the supporting plate is rotationally installed on the outer side of the supporting rod, and medical staff can adjust the opening and closing angle of the leg limiting plates at the upper ends of the two sets of L-shaped guide rods by rotating the L-shaped guide rods; according to the invention, medical personnel can conveniently observe or the use comfort of a patient is further improved.

The invention discloses an environment control method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining the environment data of a target area, obtaining the prediction change data based on the environment data, carrying out the threshold calculation based on the prediction change data and a preset constraint condition, and determining a target control threshold, generating an adjustment strategy for adjusting the environmental parameters of the target area based on the environmental data, the predicted change data and the target control threshold, and adjusting the environmental parameters in the target area based on the adjustment strategy to enable the environmental parameters to be within the target control threshold. By adopting the method and the device, the accuracy and the efficiency of performing environment adjustment on the target area are improved, the comfort degree of the user in the target area is improved, and the energy consumption caused by performing environment control on the target area is reduced.

The application provides a control method and device of an air conditioner, a storage medium and the air conditioner. The method comprises the following steps: after the air conditioner is started to cool, an initial running frequency of the air conditioner last time when the air conditioner is started to cool under the same indoor and outdoor environment temperature and set temperature as this time is acquired, and a second time length of running at an intermediate running frequency is acquired; it is judged whether the second time length of running at the intermediate running frequency last time is greater than a preset time length; if it is judged that the second time length is greater than the preset time length, a preset frequency value is added to the initial running frequency of the air conditioner last time when the air conditioner is started to cool, as the initial running frequency of the air conditioner this time when the air conditioner is started to cool; if it is judged that the second time length is less than or equal to the preset time length, the initial running frequency of the air conditioner last time when the air conditioner is started to cool is taken as the initial running frequency of the air conditioner this time when the air conditioner is started to cool. The application can realize the rapid change of room temperature and improve the comfort of users.

This application discloses a soluble microneedle composition of a GLP-1R agonist and its preparation method, belonging to the field of biomedical technology. It includes a needle body material and a base material. The needle body material contains a small molecule GLP-1R agonist, a penetration enhancer, and a soluble polymeric backbone material, and may further include pH adjusters, humectants, and stabilizers. The base material is composed of polylactic acid, polylactic acid-glycolic acid copolymer, cross-linked polyhyaluronic acid, cross-linked gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyvinylpyrrolidone-vinyl acetate copolymer, N-(2-hydroxypropyl)methacrylamide polymer, or combinations thereof. Through injection, centrifugation, and drying, an integrated microneedle structure with mechanical strength and rapid dissolution is formed. It can pierce the stratum corneum of the skin to form microchannels and rapidly dissolve and release oxaliplatin subcutaneously, achieving transdermal delivery, effectively reducing gastrointestinal exposure and first-pass metabolism, and improving drug utilization and medication adherence.

The utility model discloses a hospital gown with a fixing structure, relates to the technical field of medical gown, and provides the following scheme that the hospital gown comprises a nursing vest, through holes are formed in the surface of the nursing vest, connecting cloth is sewn on the surface of the nursing vest, and limiting belts are sewn on the surface of the connecting cloth. When a patient wears a hospital gown for treatment, in order to improve the fixing effect of a treatment pipeline on the outer wall of the hospital gown during treatment of a hemodialysis patient, and prevent the pipeline from being dragged, causing pain at the wound of the patient, causing friction between the pipeline and the body surface of the patient and reducing the comfort degree when the pipeline and the patient are attached for treatment, the utility model provides the hospital gown for the hemodialysis patient. When a patient is treated through a pipeline, the pipeline is firstly inserted into one side of the fixing belt, and the fixing snap fastener and the adjusting snap fastener can be pressed and fixed according to the limiting tension degree of the pipeline, so that the effect that the pipeline is clamped and fixed by the fixing belt is achieved, and the effect of improving the treatment stability of the pipeline on the patient is achieved.

The enema device comprises a liquid storage bag, an infusion assembly is installed at an outlet of the liquid storage bag and comprises an infusion channel I and an infusion channel II, one end of the infusion channel I is communicated with the liquid storage bag, and the other end of the infusion channel I is communicated with the infusion channel II; the infusion channel II comprises an inner shell and an outer shell, the inner shell is communicated with the infusion channel I to form a channel used for conveying enema liquid, a liquid outlet is formed in the end, away from the infusion channel I, of the inner shell, the inner shell and the outer shell are fixedly connected at the liquid outlet, a closed cavity is formed between the inner shell and the outer shell, and a telescopic convex bag with the interior communicated with the cavity is arranged on the outer shell. The cavity is further connected with an expansion channel used for injecting air or normal saline into the cavity, and a valve used for controlling the expansion channel to be opened and closed is arranged on the expansion channel. Normal saline or air can be injected to enable the convex bag to expand so as to prevent enema liquid from leaking out, the satisfaction degree of a patient is improved, and disease rehabilitation is promoted.

The utility model provides a stable and accurate dental impression manufacturing device, which relates to the field of dental impression manufacturing equipment, and comprises a handle, the bottom of the handle is fixedly connected with a stabilizing component, a limiting block is driven to move, and when a movable column is not limited by a limiting groove, the movable column is rotated; a movable column drives an adjusting block and a fixed shell arranged on the adjusting block to rotate, then a servo motor is started, the servo motor drives a second threaded rod, the second threaded rod drives a sliding shell arranged on the second threaded rod to slide along the fixed shell while rotating, and the second threaded rod drives a first threaded rod to rotate; the first threaded rod drives the sliding inner shell and the fixing piece to extend out, meanwhile, the fixing piece and the jaw of a patient are fixed, then the movable column and the limiting block on the movable column are moved into the limiting groove again, and the probability that the edge of a false tooth is not attached to the gingiva is reduced through the device; and the influence on the stability and comfort of the false tooth is reduced.

The application provides a control method, a control device, a control system and a storage medium of an air conditioner. The control method comprises the following steps: obtaining device information of a user terminal; obtaining target device information in a running area of the air conditioner according to the device information; and regulating and controlling the air conditioner according to the target device information. With the progress of science and technology, people's life and work are more and more inseparable from mobile phones, and the mobile phones also become the daily life of people's personal carrying articles. The application regulates and controls the air conditioner based on the device information of the user terminal, and the user terminal comprises a mobile phone of a user. The application obtains the device information of the user terminal, and then obtains the target device information in the running area of the air conditioner according to the device information, so that the accuracy of the air conditioner control method is increased. The information of the user change in the running area of the air conditioner can be recognized in time according to the device information of the user terminal, intelligent control of the air conditioner is formed, and the purpose of energy saving is achieved.

The invention discloses a baby holding strap. The baby holding strap comprises a waistband; one end of the haversack is connected to the waistband, and the haversack is used for supporting the infant; one end of the vest is connected to the waistband, the other end, away from the waistband, of the vest is detachably connected to the haversack or the waistband, the waistband comprises a waistband body and a waist protection piece, the waistband body is connected with the haversack and the vest, and the two ends of the waistband body are detachably connected through a third connecting structure; the waist protection piece is adjustably connected to one end of the waistband body, the waist protection piece is detachably connected with the other end of the waistband body through a third connecting structure, the third connecting structure comprises a second adjusting buckle fixed to the waist protection piece and a second adjusting belt penetrating through the second adjusting buckle, one end of the second adjusting belt is connected to the waistband body, and the other end of the second adjusting belt is connected to the waistband body. When the other end of the second adjusting belt is stressed to move along the second adjusting buckle, the relative position between the waist protection piece and the waistband body can be adjusted.

The application provides a 3D modeling-based customized garment production method and system. In physical simulation, the motion of a garment three-dimensional model is driven according to motion capture data, and then the relative displacement time sequence of each grid vertex on the inner surface of the garment three-dimensional model and the average normal contact pressure of each grid unit are determined. The cumulative sliding length of each grid unit is determined according to the relative displacement time sequence of the corresponding grid vertex, and then the estimated wear index of each grid unit is determined according to the average normal contact pressure of different grid units and the preset corresponding fabric friction coefficient. The local wear-resistant reinforced area is marked on the surface of the garment three-dimensional model according to the estimated wear index. When generating a garment two-dimensional pattern and a production process file, the local wear-resistant reinforced area is mapped to the corresponding pattern, and a high-wear-resistant material is marked for the local wear-resistant reinforced area. By using the scheme of the application, the material optimization layout from static form adaptation to dynamic behavior response can be realized.

The utility model relates to the technical field of firefighter boots, and provides a quick-to-buckle fireproof corrosion-resistant firefighter boot which comprises a sole, a fireproof boot leg is fixedly mounted on the outer side of the sole, two uppers for tightening are sewn on the outer side of the boot leg, and front tightening assemblies for quick tightening are arranged on the outer sides of the uppers. According to the fireproof and corrosion-resistant fireman boots capable of being buckled quickly, more effective adjustment and a better attaching and tightening effect can be achieved more conveniently according to different heights of foot arch parts of different users through the arranged front tightening assembly, and the fireman boots can be taken off and worn more conveniently through the arranged side tightening assemblies, so that the fireproof and corrosion-resistant fireman boots capable of being buckled quickly are more convenient to use. According to the pair of anti-puncture and anti-static fireman boots, the strength consumed in the wearing and taking-off process of the fireman boots and the comfort degree in the wearing and taking-off process are reduced, meanwhile, the anti-puncture and anti-static effects of the whole fireman boots can be effectively improved through the protection assemblies, and then the problem that the fireman boots are not completely attached to the feet of a user, and consequently use discomfort is caused is effectively solved.

The utility model relates to the technical field of beating devices, in particular to a short soldier training device which comprises a main body, a connecting assembly and a handle, a shell is sleeved outside the main body, the connecting assembly comprises an inserting hole formed in the handle, a sleeve is movably inserted in the inserting hole, a main core is movably inserted in the main body, and the main core is connected with the handle. The training device comprises a main core, a casing pipe is arranged in the main core, a balancing weight is arranged in the casing pipe, the balancing weight is movably connected with the main core in an inserted mode, a limiting piece matched with the balancing weight is arranged on the casing pipe, a fixing mechanism matched with the balancing weight is arranged on the main core, and the weight of the training device is increased by arranging the balancing weight in the casing pipe. And in addition, due to the fact that the space in the sleeve is large, the balancing weight can be adjusted according to the requirement of a user, the applicability of the training device is improved, the balancing weight is clamped between the connecting sleeve and the limiting piece, and the balancing weight is prevented from shaking in the using process.

The invention discloses a surgical protective film with a guiding effect and a preparation process, and belongs to the technical field of medical instruments. The operation protective film with the guiding function sequentially comprises a first water retaining dam, an antibacterial film, a collecting bag, a valve and a discharging hose from top to bottom, and a second water retaining dam and a third water retaining dam are vertically arranged on the periphery of the antibacterial film side by side; the water retaining dam is obtained by soaking water retaining foam in a PE-PU solution, punching the water retaining foam through a laser-beam drilling machine and conducting hydrophobic treatment. The antibacterial film is obtained by coating and drying a polymer solution and nano particles. According to the surgical protective film, the antibacterial film with the guiding function is prepared through the laser etching technology, positioning in the surgical process is facilitated, and therefore the surgical efficiency and safety are improved; by means of the three-face blocking structure, flushing fluid flows in one direction to enter the collecting bag, the fluid can be effectively prevented from permeating to the outside of an operation area in the operation process, and the risks of pollution and cross infection in the operation process are reduced.

The application provides a vehicle control method, device, system and vehicle. When the trunk kitchen is in a cooking mode, the vehicle control method determines an air outlet amount of a first target air outlet of the vehicle based on a temperature distribution of a trunk kitchen area, controls the first target air outlet to work according to a working parameter of the first target air outlet, and the working parameter of the first target air outlet includes the air outlet amount. According to the temperature distribution of the trunk kitchen area, the smoke generated in the cooking process through the trunk kitchen can be sensed in the first time, the smoke is blown away by the positive air pressure in the vehicle generated by the blowing of the first target air outlet, the experience of the cooking personnel is improved, the risk of the smoke spreading into the vehicle is reduced, and the influence of the smoke on the cleanliness and comfort of the vehicle interior is reduced.

The invention provides a double-bus subway vehicle air conditioner load shedding control method which comprises the following steps: designing an existing AV380V bus into double buses, namely a first bus and a second bus; the TC1 vehicle SIV and the TC2 vehicle SIV are mounted on the first bus at the same time, and the M1 vehicle SIV and the M2 vehicle SIV are mounted on the second bus at the same time; the first bus and the second bus are connected in parallel through a bus contactor of the M1 vehicle; and two air conditioning units of each section of vehicle are mounted on the first bus and the second bus respectively, and air conditioner load shedding control logic is designed in combination with the states of bus contactors. According to the technical scheme, the technical problems that due to faults such as AC380V bus short circuit, a vehicle loses AC380V power supply, and air conditioner load shedding is controlled when a bus contactor breaks down are solved, the situation that the air conditioner is not subjected to load shedding or is not subjected to load shedding is avoided, the utilization efficiency of air conditioner equipment is improved, the comfort level of passengers is increased, and the service life of the passengers is prolonged. The SIV overcurrent fault is reduced, and the vehicle operation efficiency is improved.

The utility model discloses a comfortable bed net which is high in strength and not prone to deformation, and the comfortable bed net comprises a fabric layer, a large spring layer, a surrounding edge I, a cloth bag I, large springs, a comfortable layer, a small spring layer, a surrounding edge II, a cloth bag II, small springs, a fixing mechanism, an edge steel wire net surrounding frame, a door-shaped supporting spring and a filling layer, the large spring layer comprises a first surrounding edge. Compared with the prior art, the bed net has the advantages that the small spring layer is additionally arranged compared with a traditional bed net, the small springs in the small spring layer are small in size and can reach more, a user feels better in the whole using process, the adjacent small springs rotate in opposite directions, and the ends of the adjacent small springs are fixedly connected in a mutually close mode, so that the user feels more comfortable. The connecting parts of the small springs can be welded through ultrasonic waves, needled or subjected to other hot pressing modes, so that the small springs are fixed more stably and firmly, and the overall height of the bed net is reduced.

The utility model discloses an intelligent body temperature patch for children, and relates to the technical field of body temperature patches. The detection part is used for detecting body temperature and comprises a shell, a gasket and a temperature sensor, the gasket is arranged on the lower side of the shell, a temperature measuring hole is formed in the middle of the gasket, and a temperature measuring head of the temperature sensor is installed in the temperature measuring hole to make contact with skin to detect body temperature; the attaching part is connected with the detection part, the surface, in contact with the skin, of the attaching part is an adhesive layer used for adhering body temperature to the surface of the skin, and the contact area of the attaching part and the skin is smaller than that of the detection part and the skin. The pad can provide good touch, so that the body temperature patch is more comfortable to wear, the temperature measuring hole in the middle of the pad enables a temperature measuring head of the temperature sensor to penetrate through the pad from the temperature measuring hole and make contact with the skin, more accurate body temperature detection is provided, the body temperature patch adheres to the surface of the skin through the adhesive layer by the attaching part, and the body temperature patch is more comfortable to wear. And the wearing stability of the body temperature patch is improved.

The invention discloses an implantable hemodialysis instrument, and relates to the field of medical appliances, the implantable hemodialysis instrument comprises a dialysis port body and a catheter, the catheter is provided with a plurality of groups of puncture holes, the dialysis port body communicated with the puncture holes is installed at the puncture holes, and the dialysis port body comprises a polyester sleeve and a port body; a puncture part capable of being rotationally adjusted is arranged in the port body, a first conical hole and a second conical hole are formed in the port body from top to bottom, and the taper angle of the first conical hole is larger than that of the second conical hole. The puncture piece is rotationally adjusted on the port body, the purpose of adjusting the puncture face is achieved, medical staff can conduct multiple times of puncture on the port body, meanwhile, the taper angle of the first taper hole is large, the medical staff can conveniently and accurately insert a puncture needle into the port body in the puncture process, and the puncture efficiency is improved. And the outlet of the second conical hole is tightly matched with the puncture needle, so that the phenomenon that the puncture needle is excessively inserted and the catheter is punctured by the puncture needle is further prevented.