16results about How to "Increase the compression area" patented technology

The present application relates to the technical field of plunger pump, in particular to a variable stroke double cavity plunger pump, which comprises a shell and a driving motor, two delivery pipes are arranged in the shell, two groups of crankshaft assemblies are arranged on the output shaft of the driving motor, the shell is connected with the corresponding delivery pipe through the crankshaft assembly, and a first one-way valve and a second one-way valve are symmetrically arranged in the delivery pipe along the axis of the crankshaft assembly; the one-way valve comprises a reset assembly, a sealing assembly and a clamping assembly arranged in sequence from top to bottom, the sealing of the sealing assembly is realized by the elastic extension of the reset assembly and the adhesion of the clamping assembly; the sealing assembly on the first one-way valve is provided with a first negative pressure assembly, the sealing assembly on the second one-way valve is provided with a second negative pressure assembly, and the first negative pressure assembly and the second negative pressure assembly are oppositely arranged; by arranging the negative pressure disc and the connecting pipe, the stress area of the sealing ball under the negative pressure condition is increased, the opening speed is accelerated, and the fluid passing efficiency is improved.

The utility model provides a non-invasive breathing machine face pressure sore prevention pad, relates to the technical field of auxiliary medical equipment, and aims to solve the problem of face pressure sores caused by a breathing mask in the prior art, and the non-invasive breathing machine face pressure sore prevention pad comprises a pressure prevention pad body, the pressure-resistant pad body comprises a first pad body attached to the nose bridge and two second pad bodies attached to the left face and the right face, the first pad body is bent towards the upper sides of the second pad bodies, and the two second pad bodies are connected to the left side and the right side of the first pad body respectively. And the two second pad bodies are symmetrically arranged relative to the center line of the first pad body. The face pressure sore prevention pad of the noninvasive ventilator can play a role in protecting the nose bridge and the cheeks at the same time, the relative displacement can be reduced through the integral structure, and the positioning effect is good.

The utility model relates to the technical field of air guns, and discloses an external air cylinder for an air gun, which comprises a cylinder body, a constant pressure valve, a high-pressure air pipe with one end connected with the position of an opening of the cylinder body, a quick joint arranged at one end of the high-pressure air pipe far away from the cylinder body, and a hanging plate, and an elastic bag for embedding and locking the cylinder body is arranged on the side wall of the hanging plate. Elastic hanging buckles are arranged on two sides of the upper end of the hanging plate, and an elastic bandage with two ends respectively connected with the hanging plate is arranged on one side, far away from the elastic bag, of the hanging plate. After the bottle body is taken out of the elastic bag of the hanging plate, the bottle body can be independently carried; after the bottle body is embedded into the elastic bag, the elastic bag can lock the bottle body, and then the hanging plate can be hung on a waistband or other positions, where the bottle body can be hung, of the human body through the elastic hanging buckle; meanwhile, the arm can penetrate through the elastic bandage on the hanging plate, so that the hanging plate and the bottle body are restrained on the arm; finally, the bottle body can adapt to different wearing modes.

The utility model discloses a hip and thigh decompression breathable cushion which comprises a cushion body, the front portion of the cushion body is provided with a leg separating supporting part, a leg containing area and an ischium supporting area, and the rear portion of the cushion body is in an upward extending form and is provided with a sacrococcygeal decompression area and a gluteal muscle pressurization area. The cushion main body comprises a filling body and an external wrapping body, the filling body comprises a plurality of flexible supporting modules which are mutually connected and staggered up and down, each flexible supporting module comprises one or more rows of wavy elastic bodies, and the wavy elastic bodies in the same row of the same module are the same in wavy direction and are distributed up and down at intervals; the wave directions of the two adjacent columns of wave-shaped elastic bodies of the same module are opposite and connected with each other, and the wave directions of the wave-shaped elastic bodies connected between the adjacent flexible supporting modules are opposite. According to the utility model, natural and soft supporting force can be provided, ventilation during sitting is realized, thighs and ischium are uniformly stressed, the pressure of sacrocaudal vertebra nerve plexus is reduced, femur, pelvis and sacrocaudal joints are fixed, and the use feeling is good.

The utility model relates to an air tightness detection clamp for a battery top cover, the battery top cover is provided with one or more detected parts, and the air tightness detection clamp comprises a first jig and a second jig; the first jig is provided with a first jig surface, and the first jig surface is provided with a first protruding part and a first airflow channel. The second jig is provided with a second jig surface, and the second jig surface is provided with a second protruding part and a second airflow channel. One of the first protruding part and the second protruding part on the two sides of the same detected part is an elastic sealing ring, the other one is a pressure applying part, and the pressure applying part abuts against and presses the elastic sealing ring. Each elastic sealing ring can be compressed, so that the air tightness of a sealing cavity between the elastic sealing ring and the battery top cover is ensured, the influence of the difference of the planeness of the top cover on the compression amount of the elastic sealing ring is reduced, and the accuracy of air tightness detection is improved; therefore, the leak rate of the top cover can be obtained more accurately, and the service life and the performance of the battery can be predicted better.

The utility model belongs to the technical field of electric pump devices, and particularly relates to a five-in-one electric pump assembly applied to a full-active suspension of a vehicle, which comprises a controller, two bidirectional internal gear pumps and two motor assemblies, the motor assembly comprises two motors, the two-way internal gear pump is connected to the ends of the motors, the controller is arranged above the two motors, a motor shaft extending out of the motor assembly is coaxially provided with a pentagonal spline, the pentagonal spline comprises five outer acting surfaces and an outer transition surface, and the outer acting surfaces are arc-shaped surfaces protruding outwards; an inner pentagonal hole matched with the pentagonal spline in an engaged mode is coaxially formed in an outer gear of the two-way internal gear pump. The electric pump is used for solving the technical problems that a motor and a pump in an existing electric pump are in transmission connection through a flat key or an involute spline, the positioning gap and the repeated impact resistance are poor, and the response capacity to real-time flow is affected.

The utility model relates to the field of medical fixing instruments, in particular to an adjustable cardiac pacemaker postoperative compression fixing structure which comprises an oversleeve and an elastic bandage, the front side of the oversleeve is connected with a chest compression piece, the rear side of the oversleeve is connected with a back connecting piece, the chest compression piece is used for covering dressing at an incision, and the back connecting piece is used for connecting the back connecting piece. The rear end of the elastic bandage is fixed to the back connecting piece, a fixing buckle is arranged on the chest pressing piece, the elastic bandage can penetrate through the fixing buckle, a hook face of a hook-and-loop fastener is arranged on the surface of the front end of the elastic bandage, and a suede face of the hook-and-loop fastener is arranged on the other portion of the surface of the elastic bandage. The compression structure solves the problem that an existing compression structure is common in compression effect.

The utility model discloses an insulated sealing structure for a square battery cover plate and a pole. The insulated sealing structure comprises a battery cover plate and an electrode terminal assembly, the sealing assembly is arranged at the joint of the electrode terminal assembly and the battery cover plate; the sealing assembly comprises an upper plastic part and a lower plastic part, and a sealing ring is installed between the upper plastic part and the lower plastic part. And the electrode terminal assembly forms an insulation sealing structure through the connection among the upper plastic part, the sealing ring and the lower plastic part. According to the insulation sealing structure disclosed by the utility model, the plastic part is matched with the sealing ring, so that the risk of short circuit between the pole terminal and the cover plate can be reduced, and the safety of the whole battery shell is improved.

The utility model relates to the field of rotary milling machines, in particular to a vertical adjusting mechanism for an enveloping worm rotary milling machine, which comprises an upright post, a support plate fixed on the top surface of the upright post, an oil cylinder fixed on the support plate, a sliding seat fixed at the end part of a piston rod of the oil cylinder, a tailstock fixed on the sliding seat and a tailstock fixed on the tailstock, the bottom end of the tailstock is rotationally connected with a rotating rod, a connecting part is fixed to the bottom end of the rotating rod, a plurality of elastic metal sheets are distributed on the top face of the connecting part at equal intervals, a gap is reserved between every two adjacent elastic metal sheets, and the elastic metal sheets are gradually expanded outwards from bottom to top. Through the arrangement of the elastic metal sheet and the like, on one hand, the pressing effect is improved, and the damage to the pressed place is greatly reduced due to the increase of the pressing area; on the other hand, the friction force between the elastic metal sheets and the inner wall of the insertion hole is greatly increased, and the stability of the cutter head in the high-strength machining process of the worm through the cutter head is guaranteed.

The utility model relates to a container aluminum profile machining device, include: bed body, frock table, first air cylinder, pressing plate, gantry, electric spindle, compression piece and tool bit, the plane is formed with above bed body, multiple frock tables horizontal arrangement and be located above the plane of bed body, frock table is fixed with bed body and can dismantle and connect, first air cylinder is located frock table horizontal side and is fixedly connected with bed body, the piston rod of first air cylinder is fixedly connected with pressing plate, pressing plate below is fixedly connected with compression piece, two compression pieces are located above frock table longitudinal both ends respectively, gantry is connected with bed body and slides and moves relative to bed body longitudinally, electric spindle is connected with gantry, and electric spindle drives tool bit rotation. The utility model's frock table longitudinal length is greater than aluminum profile, can process a complete lateral surface after once clamping, and the number of clamping and processing is less, improves the processing accuracy, reduces the work load, improves work efficiency.

The utility model discloses an anti-sedimentation inspection well structure, and relates to the technical field of traffic road facilities, the anti-sedimentation inspection well structure comprises an upper pipeline, the upper pipeline is rotatably connected with a well lid, the peripheral surface of the upper pipeline is fixedly connected with a mounting shell, the mounting shell is detachably connected with a plurality of reinforcing plates, each reinforcing plate is connected with a fixing block, and the fixing blocks are fixedly connected with the well lid. The mounting shell is provided with a plurality of fixing grooves for clamping the fixing blocks, each fixing block is connected with two positioning blocks in a relatively sliding manner, the mounting shell is provided with positioning grooves for clamping the corresponding positioning blocks, the positioning grooves are communicated with the fixing grooves, and the reinforcing plate is connected with a driving structure for driving the positioning blocks to be separated from the positioning grooves. Different numbers of reinforcing plates are mounted according to undisturbed soil with different hardness, so that the application range of the anti-sedimentation inspection well structure is widened; the reinforcing plate increases the contact area between the upper pipeline and undisturbed soil, friction is increased, and the anti-sedimentation effect of the upper pipeline is improved.

The utility model belongs to the technical field of medical instruments, and relates to a sternum suture system with a hemostasis function, which comprises a first compression hemostasis sheet, a second compression hemostasis sheet, a steel wire suture with steel wire suture needles at two ends respectively, and a woven suture with woven suture needles at two ends respectively, two ends of the steel wire suture respectively penetrate out of the first compression hemostasis sheet and the second compression hemostasis sheet; the woven sewing threads are respectively arranged on the first compression hemostasis sheet and the second compression hemostasis sheet in a mattress-type penetrating manner; and the woven suture on the first compression hemostasis sheet and the woven suture on the second compression hemostasis sheet are respectively arranged on two outer sides of the steel wire suture. Compared with the prior art, the felt is adopted for stopping bleeding, suture muscle cutting is avoided, the compression area is increased, meanwhile, the felt has a certain local coagulation promoting effect, and bleeding can be effectively treated.

A water conservancy slope protection net, including strip fixed plate, positioning plug, U-shaped positioning plate, positioning plug rod, fixed shaft rod, positioning stand, rotating pressing plate, magnetic sheet, U-shaped clamping plate, the lower part of the strip fixed plate is connected with the positioning plug, three positioning plugs are evenly distributed in the lower part of the strip fixed plate, the side of the positioning plug has an auxiliary plug, three auxiliary plugs are evenly distributed in the shaft side of the positioning plug, the lower surface of the strip fixed plate is attached to the side skin, the lower part of the U-shaped positioning plate is connected with the strip fixed plate, the U-shaped positioning plate has a strip sliding hole, the positioning plug rod is adapted to the strip sliding hole, the positioning plug rod is inserted into the strip sliding hole, the positioning plug rod slides in the strip sliding hole, the lower part of the positioning plug rod has a plug rod lower disc, the upper surface of the plug rod lower disc is attached to the U-shaped positioning plate, and the lower surface of the plug rod lower disc is attached to the strip fixed plate.

The utility model discloses a novel pressure injury preventing water pillow which is characterized in that a first water pillow body and a second water pillow body are spliced to form a water pillow body, water or ice crystal hydrate is filled in the water pillow, and a first groove and a second groove are spliced to form a complete groove matched with the shape of the buttocks of a human body. The supporting pad is laid on the surface of the groove, the pressed area of the hip of the patient corresponding to the water pillow part is increased through the design of the groove, the stress intensity of the hip of the patient is reduced, and the pressure of the pressed part is evenly distributed. According to the utility model, the interval of each turn-over can be lengthened, the comfort level of the skin of the patient is improved, the probability of pressure injury is reduced, for the patient with the skin subjected to first-stage pressure injury, the improvement speed is high, the pain of the patient is relieved, and the workload and the working pressure of nursing personnel are reduced; the outcome of the patient is promoted.

The utility model discloses an inner hexagonal screw fastener which comprises a tightening head, one end of the tightening head is fixedly connected with a pressing piece, the other end of the tightening head is provided with a hexagonal groove, a groove is formed in one end of the tightening head, a fastening rod is fixedly connected to the middle position of the interior of the groove, a connecting plate is arranged in the groove, and the other end of the tightening head is fixedly connected with the hexagonal groove. The surface of one side of the connecting plate is fixedly connected with a rubber sealing cylinder, the outer surface of the rubber sealing cylinder is attached to the surface of the inner wall of the groove, the rubber sealing cylinder is connected to the outer side of the fastening rod in a sleeving mode, an avoiding hole is formed in the middle of the connecting plate, and the avoiding hole is connected to one end of the fastening rod in a sliding and sleeving mode; the surface of one side of the connecting plate is fixedly connected with a magnet block, the magnet block is magnetically attracted to the upper end of the interior of the groove, one side of the magnet block is fixedly connected with a fixing head, combined sealing can be achieved after pressing and fixing, threaded positions are prevented from being rusted, disassembly and replacement are convenient, adaptability is high, and use safety is improved.