91 results about "Diaphragm seal" patented technology

The invention discloses an aorta covered stent and an aorta covered stent assembly, and belongs to the technical field of medical instruments. The aorta covered stent comprises a main covered stent body and branch covered stents; a mounting opening is formed in the main body covered stent; the branch covered stent comprises an outer port and an inner port, the side, close to the upstream, of the edge of the outer port is connected with the mounting port through a first membrane, and the first membrane is provided with a first outer convex face and a first inner concave face which are oppositely arranged; one side, close to the downstream, of the edge of the inner port is connected with the mounting port through a second membrane, and the second membrane is provided with a second outer convex surface and a second inner concave surface which are oppositely arranged; the first membrane and the second membrane are connected through the third membrane, and the first membrane, the second membrane and the third membrane seal the installation opening. The assembly comprises a connecting covered stent and the aorta covered stent. The aorta covered stent which does not need to cut the healthy blood vessel of a patient, and is wide in application range, high in flexibility and small in compression occupied space can be formed.

The invention provides a diaphragm bubble point pressure testing device and a testing method. The diaphragm bubble point pressure testing device and the testing method are used for solving the technical problems that an existing diaphragm bubble point pressure testing device is complex in structure, at least two persons need to be matched for operation during testing, and air tightness is attenuated due to the fact that a drainage hole is independently formed or the resetting process is long due to the fact that drainage is detached. According to the diaphragm bubble point pressure testing device, an air cavity is arranged to be of a barrel-shaped structure with the bottom being a spherical surface, a liquid cavity is arranged to be of a hollow columnar structure with the upper portion and the lower portion being open, and a diaphragm to be tested is clamped between the air cavity and the liquid cavity in a sealed mode; the position of the air inlet nozzle is specially designed, so that the uniformity of an air pressure field in the air cavity can be ensured, and the residual liquid can be discharged through the air inlet nozzle when the air cavity is inclined by a certain angle by ingeniously combining with the rotating air cavity, so that the arrangement of an independent drainage hole is effectively avoided, and the air tightness of the testing device is ensured; and the whole testing device does not need to be disassembled, and the drainage time is reduced to several seconds from half an hour after the device is reset.

The present invention provides an air spring, comprising a shell, a diaphragm fixed within the shell, a bladder, and a lower end cover, arranged in sequence; the ends of the bladder are respectively sealed and buckled onto the outer walls of the shell and the lower end cover; the diaphragm comprises, from top to bottom, a diaphragm upper cover, a diaphragm, and a diaphragm lower cover; the shell is a hollow structure with an opening at the lower end, the diaphragm seals the opening, so that the shell and the diaphragm upper cover together form an upper chamber, and the bladder, the diaphragm lower cover, and the lower end cover together form a lower chamber; the diaphragm upper cover is provided with at least one upper vent hole communicating with the upper chamber, and the diaphragm lower cover is provided with at least one lower vent hole communicating with the lower chamber; the diaphragm is an elastomer, and under the action of the pressure difference formed between the upper and lower chambers, the diaphragm undergoes elastic deformation and moves up and down within the diaphragm. The air spring of the present invention can isolate high-frequency, small-amplitude vibrations, reduce the conduction of chassis noise, enhance the vehicle's sense of suspension, provide support for the vehicle, and control large vibrations of the vehicle body under roll and pitch conditions.

The invention discloses a dual-channel oil-filled pressure core body and a preparation method, and relates to the technical field of pressure core bodies, the dual-channel oil-filled pressure core body comprises a first base assembly, a second base assembly and an integrated circuit board, the first base assembly is provided with a containing cavity and a first groove with opposite openings, and the second base assembly is provided with a second groove; the first groove is communicated with the first oil filling hole to form a first oil filling cavity; the first silicon piezoresistive chip is fixed at the bottom of the first groove, and the first diaphragm seals the opening of the first groove; the second base is provided with a second groove, the second groove is communicated with the second oil filling hole to form a second oil filling cavity, the second silicon piezoresistive chip is fixed at the bottom of the second groove, and the second diaphragm seals an opening of the second groove; the integrated circuit board is in electric signal connection with the first silicon piezoresistive chip and the second silicon piezoresistive chip through the first pin and the second pin. The dual-channel oil-filled pressure core body is simple in structure, high in measurement reliability and capable of meeting the use requirements of different scenes.

The application relates to the field of exterior wall plate building materials, and particularly relates to an ultraviolet-resistant exterior wall plate modular splicing structure, which comprises a solid wood bottom plate, the top of the solid wood bottom plate is sleeved with a transparent plate, the inside of the solid wood bottom plate is integrally provided with a mounting groove, and the mounting groove is further provided with a quick-change mechanism and a splicing mechanism; the quick-change mechanism comprises a lining plate, a manual assembly, an extension assembly and a same-direction assembly; the splicing mechanism comprises a plurality of dovetail blocks and a plurality of dovetail grooves; the ultraviolet-resistant exterior wall plate modular splicing structure seals and buckles a UV diaphragm on the surface of a soundproof plate and the lining plate, has excellent ultraviolet resistance, and further adds a sealing ring between the transparent plate and the solid wood bottom plate, so that rainwater and dust cannot enter the UV diaphragm to corrode the UV diaphragm, the waterproof performance of the UV diaphragm is remarkably improved, the service life of the UV diaphragm is prolonged, and the overall ultraviolet resistance time of the exterior wall plate is further prolonged.

The invention relates to an emergency operating device for a motor vehicle lock (1) and, in particular, a motor vehicle door lock (1). For this purpose, the device is equipped with a housing (4), at least one actuating lever (5) provided in the housing (4), and a manipulation element (8) for emergency operation. The manipulation element (8) acts indirectly or directly on the actuating lever (5) and, for this purpose, extends through a rotary element (12) mounted in the housing (4). According to the invention, the rotary element (12) is designed as a rolling diaphragm seal (12) made of an elastomeric plastic.

According to the stem cell culture solution pollution-free collection module, the sterile isolation and vacuumizing process of the internal environment of a collection bottle is achieved through a collection assembly, the function that air in the bottle is pumped out firstly and then the stem cell culture solution is injected is achieved through the coaxial inner needle and outer needle design of an infusion assembly, and the stem cell culture solution is collected through a multi-stage self-sealing structure after the needles are pulled out. And the collection bottle is automatically closed and sealed after liquid injection is completed, so that the pollution-free stem cell culture solution collection module which is pollution-free in the whole process and is closed and safe is realized. The device is characterized in that the device comprises a collecting assembly and an infusion assembly, the infusion assembly is inserted into the collecting assembly, the infusion assembly injects a stem cell culture solution into the collecting assembly, and the collecting assembly comprises a collecting bottle, a sealing plug, a disposable sterile unsealing film, a duckbill valve, a check valve and a multi-layer self-resetting diaphragm; and the sealing plug is clamped at the opening end of the collecting bottle.

The utility model provides a self-adhesive ultrasonic coupling diaphragm patch, which comprises a first sponge frame, a second sponge frame, a high-sound-transmission diaphragm and a sticking sheet, a coupling agent is filled in the first sponge frame, an opening at the lower part of the first sponge frame is sealed by the high-sound-transmission diaphragm, and the sticking sheet is arranged at the periphery of the high-sound-transmission diaphragm; a second sponge frame corresponding to the first sponge frame is arranged on the lower portion of the sticking piece, the second sponge frame is filled with a coupling agent, and the sticking piece is used for being fixed to the ultrasonic probe in a sticking mode, so that the ultrasonic probe is wrapped in the first sponge frame, and the ultrasonic probe is in close contact with the coupling agent in the first sponge frame. The ultrasonic coupling agent can be conveniently and rapidly pasted and fixed on the ultrasonic probe, the coupling agent can be well attached to the probe, and the ultrasonic coupling agent pasting device is convenient to detach, suitable for ultrasonic probes of different sizes and convenient to use.

The application discloses an electrolysis device and a bipolar frame structure. The electrolysis device comprises a first extrusion plate, a second extrusion plate, a diaphragm, a sealing gasket and at least one bipolar frame. The bipolar frame comprises a frame body, the frame body is formed with a chamber cavity of electrolyte, and the chamber cavity is respectively provided with an inlet part and an outlet part. The bipolar frames are arranged in a laminated manner and fixedly connected. The first extrusion plate is attached to the frame body at the first end of the laminated frame body, and the second extrusion plate is attached to the frame body at the second end of the laminated frame body. The first extrusion plate and the second extrusion plate bear opposite forces, so that the at least one bipolar frame is in airtight connection between the bipolar frames. The first side of the bipolar frame is provided with a first electrode plate, and the second side of the bipolar frame is provided with a second electrode plate. The first electrode plate and the second electrode plate are connected with a power supply and provide current for the electrolyte in the chamber cavity. The chamber cavity is further provided with a dispersion plate, and the dispersion plate shunts the electrolyte in the chamber cavity. The application improves the electrolysis efficiency and is beneficial to the escape of electrolysis gas.

The invention provides an electrolysis unit based on water electrolysis hydrogen production and an electrolytic bath, and the electrolysis unit comprises a diaphragm; the diaphragm is combined between the two polar plates in a sealing manner, so that the diaphragm and the two polar plates form two cavities suitable for accommodating electrolyte; the two electrode layers are respectively positioned in the two cavities, so that the electrolyte reacts to separate out hydrogen and oxygen; and the at least one annular protection sheet is made of an elastic material and is arranged between the diaphragm and the polar plate, and the inner ring edge of the protection sheet extends into the cavity and is positioned between the edge of the electrode layer and the diaphragm so as to protect the diaphragm and prolong the service life of the diaphragm.

A low-cost and corrosion-resistant pressure sensitive element comprises an integrally-formed ceramic base body, and the base body comprises a longitudinally-extending pipe body, a pressure sensing diaphragm closed at the longitudinal near end of the pipe body and a circle of stopping part formed by extending from the middle of the pipe body to the radial outer side; and the pressure sensing circuit is arranged on the surface of the longitudinal near end of the pressure sensing diaphragm and comprises at least one piezoresistor. The manufacturing method comprises the following steps: obtaining a green body of the matrix through dry pressing or injection molding, drying the green body, and sintering to obtain an integrally formed ceramic matrix; wherein the base body comprises a longitudinally extending pipe body, a pressure sensing diaphragm sealed at the longitudinal near end of the pipe body, and a circle of stopping part formed by extending from the middle part of the pipe body to the radial outer side; the surface of the longitudinal near end of the pressure sensing diaphragm is coated with conductive slurry, and a conductive circuit is obtained after sintering; the surface of the longitudinal near end of the pressure sensing diaphragm is coated with thick film paste, and a thick film resistor is obtained after sintering, so that the thick film resistor and the conductive circuit form a pressure measuring circuit.

Provided is a zone control valve and a fire-fighting system. The zone control valve comprises a valve body, a sealing diaphragm, and an electrical explosion driving device. A fluid flow path, comprising an inlet and an outlet, is formed inside the valve body, and the central axis of the inlet and the central axis of the outlet form an included angle; the sealing diaphragm is sealedly arranged in the fluid flow path and divides the fluid flow path into a first flow channel and a second flow channel; the electrical explosion driving device is mounted on the valve body, the output end of the electrical explosion driving device is in connection with a puncture part, and the puncture part is located in the second flow channel and directly faces the sealing diaphragm.

The utility model discloses a diaphragm sealing structure of a valve core, which comprises a valve seat provided with an accommodating cavity, a working port and a flow channel; the working port is located below the containing cavity and communicated with the containing cavity, and the flow channel is communicated with the containing cavity. The valve element is arranged in the containing cavity, and the valve element can move up and down so as to have the position where the working opening can be opened or closed. The elastic diaphragm is located above the containing cavity, the inner end of the elastic diaphragm is connected with the peripheral side of the valve element in a sealed mode, the outer end of the elastic diaphragm is connected with the valve seat in a sealed mode, the elastic diaphragm can elastically deform to move along with the valve element, and the sealing effect is always kept. The utility model relates to the technical field of electromagnetic valves.

The present application relates to a six-chamber RO booster pump, which belongs to the technical field of boosting equipment. The RO booster pump includes a pump casing, a pump head, and a motor part. The pump head includes a vibrating bottom diaphragm connected to the motor part, a vibrating top diaphragm sealed and installed on the top of the vibrating bottom diaphragm, and a one-way valve body installed on the vibrating top diaphragm. A drive chamber is formed between the vibrating bottom diaphragm and the vibrating top diaphragm. The pump casing includes a pump head shell for the pump head to be installed. A drainage chamber connected to a drainage hole is formed between the pump head shell and the vibrating top diaphragm. The pump head shell is provided with a noise reduction drainage structure in the drainage chamber. The noise reduction drainage structure includes multiple groups of concentrically arranged guide rings and a cyclone provided in the inner hole of the guide ring. The present application has the effect of reducing the noise generated by water discharged from the drive chamber and hitting the inner wall of the pump casing.

The application discloses a diaphragm pump, which comprises a pump shell body internally provided with a containing cavity, an electromagnet assembly, an intermediate shell body, a diaphragm, an isolation shell body internally provided with an isolation cavity and a switch valve structure, the electromagnet assembly comprises an electromagnet fixedly arranged in the containing cavity and an oscillating rod, the intermediate shell body is provided with an independent suction cavity, a transfer cavity and a discharge cavity, the suction cavity is provided with a first suction passage communicated with the containing cavity and a second suction passage communicated with the transfer cavity, the discharge cavity is provided with a first discharge passage and a second discharge passage, the first discharge passage is communicated with the transfer cavity, the diaphragm is sealingly arranged in a communicating port of the side wall of the transfer cavity, the diaphragm is connected with the oscillating rod, the switch valve structure is arranged in the intermediate shell body, the isolation cavity is internally provided with an air inlet passage and an air outlet passage, the air inlet passage is communicated with the containing cavity, and the air outlet passage is communicated with the second discharge passage. Through the above structure, the noise generated during the operation of the diaphragm pump can be weakened, and the diaphragm pump can operate more quietly.

The utility model discloses a pressure switch, which comprises a plug and a lower seat, the plug and the lower seat are spliced to form a closed movable cavity, the inner wall of the movable cavity is provided with a first ring groove, the first ring groove is covered with a sealing diaphragm, one side of the sealing diaphragm is provided with a pushing piece, the other side of the sealing diaphragm is provided with a switch assembly, and the inner wall of a sliding cavity is provided with a second ring groove. A limiting ring covers the interior of the second annular groove and is made of a hard material, and the side, facing the pushing piece, of the limiting ring abuts against the sealing diaphragm; a third ring groove is formed in the inner wall of the movable cavity, when the third ring groove is subjected to cold extrusion forming, the side, facing the limiting ring and back on to the sealing diaphragm, of the third ring groove is wrapped to form a ring edge, the ring edge abuts against and fixes the limiting ring, and the heat shrinkage rate of the limiting ring is obviously lower than that of a traditional plastic plug. The ring edge wraps and fixes the limiting ring, it is ensured that the limiting ring exerts stable pressing force on the sealing diaphragm, and the sealing performance of the sealing diaphragm is improved.

The utility model provides a kind of elastomer diaphragm seal, including static ring component and dynamic ring component, static ring component includes static ring and sealing ring, static ring outer wall is equipped with sealing groove, sealing ring is nested in sealing groove, dynamic ring component includes support ring, diaphragm ring cover, snap ring, spring, base and dynamic ring, support ring inner wall is equipped with convex ring, diaphragm ring cover upper end bottom surface and convex ring top surface abut, diaphragm ring cover lower end is equipped with clamping groove, snap ring is installed in clamping groove, spring top and support ring bottom abut, spring bottom and base are connected, dynamic ring is installed in support ring inside, dynamic ring bottom surface and diaphragm ring cover top surface abut, dynamic ring top surface and static ring outer end surface cooperation form sealing surface, to realize the function of preventing fluid leakage.The utility model diaphragm ring cover has good deformation recovery ability, can closely adhere dynamic ring, carry out elastic compensation when small stroke change of seal is generated, and spring can further stretch in large stroke change, and sealing performance, stability and reliability are higher.

1. The name of this design product: diaphragm seal assembly. 2. Purpose of the design product: Used as a component involving a diaphragm valve, which can be attached to the outlet of a pipe during use, and the diaphragm valve (and its components) can be actuated when exposed to increased pressure in the pipe to provide a visual indication or warning of the pressure in the pipe to an observer. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1. 5. Other situations that require explanation Other explanations: The rear view, left view and right view are the same as the main view, and the rear view, left view and right view are omitted.

An intelligent monocrystalline silicon diaphragm sealed pressure transmitter disclosed by the present invention comprises a transmitter body, the lower end of the transmitter body is connected with a first pipeline, and one end of the first pipeline far away from the transmitter body is provided with a mounting pipeline. The first pipeline is inserted into the mounting pipeline; one end, far away from the transmitter body, of the mounting pipeline is connected with a second pipeline; one end, close to the mounting pipeline, of the first pipeline is connected with a sealing ring, and the sealing ring is attached to the inner wall of the mounting pipeline; an annular compression groove is formed in the outer side of the first pipeline; when the transmitter body needs to be disassembled, the arc-shaped extrusion block is rotated towards the position far away from the first pipeline, so that the first pipeline loses the pressing force, the transmitter body can be disassembled, the transmitter body is convenient and rapid to assemble and disassemble, and the assembly and disassembly efficiency of the transmitter body is improved. And the sealing performance and the stability of the transmitter body can be ensured.

The invention relates to the field of glue coating equipment, and particularly discloses a glue cut-off control valve body and a working method thereof, and the glue cut-off control valve body comprises a valve block assembly, a valve sleeve, a feeding ejector pin, a material valve nozzle, a valve core, a shifting piece, a compression spring and an air pipe joint. The feeding ejector pin is of an integral cylinder structure and is arranged in the valve sleeve provided with the double sealing rings and the intermittent gasket in a penetrating mode, and a double-sealing cavity is formed. The valve element is connected with the feeding ejector pin through the shifting piece to form a lever type pneumatic force transmission structure, opening and closing actions are achieved under air pressure driving, and the valve element is automatically reset and closed through a compression spring in the valve element when air is cut off. According to the structure, a traditional diaphragm sealing mode is omitted, the problem that the valve needle is opened by mistake due to reverse thrust generated by diaphragm deformation under high pressure is solved, sealing reliability and opening and closing stability are improved, and the structure has the advantages of being capable of being automatically closed when gas is cut off, preventing drip leakage, being resistant to high pressure and the like and is suitable for a glue control system under high-viscosity, high-pressure and multi-point gluing working conditions.

One or more techniques and / or systems are disclosed for an improved barrier seal for use on a rotating shaft of a pump to mitigate leakage of fluids along the shaft. The body of the barrier seal may comprise a one-piece combined bushing and seal that can be selectably fastened to the pump bracket. Internal and external channels in the body can operably hold gaskets, internally dynamic seals, and externally static seals, inside the stuffing box of the pump bracket. A lubricant port can be disposed on a flange of the seal portion to provide lubricant to the interior of the barrier seal, which can also be fluidly coupled with the outside of the seal. A pressurized lubricating fluid can also help mitigate leakage of pumped fluid by pressurizing between static gaskets on the outside, and provide lubrication for the rotating shaft on the inside of the seal.

The utility model discloses a manual breast pump, and relates to the technical field of breast pumps, the manual breast pump comprises a breast pumping shield, a milk storage container, a negative pressure driving diaphragm and a manual driving piece, one side of the breast pumping shield is used for being attached to the breast, and a breast pumping channel or a through hole used for containing the nipple is formed in the other side of the breast pumping shield; a milk storage cavity is defined by the milk storage container and the milk sucking shield, the milk sucking channel or the through hole is communicated with the milk storage cavity, and at least part of the milk storage container is made of soft materials. The negative pressure driving diaphragm is hermetically connected to the milk storage container; one end of the manual driving part is connected with the negative pressure driving diaphragm, the other end of the manual driving part is driven to abut against the breast, the negative pressure driving diaphragm is driven by one end of the manual driving part to deform so as to apply negative pressure to the milk storage cavity, and breast milk is guided to flow out of the breast and be stored in the milk storage cavity. The manual breast pump provided by the utility model can be used for massaging and lactating breasts during manual breast pumping, so that the discomfort of the breasts is relieved.

A filter plate assembly for a filter press, comprising a filter frame and a filter plate supported on the filter frame. A diaphragm is provided between the filter frame and the filter plate, the diaphragm further comprising, on a side facing the filter frame, a seal bead for sealing the diaphragm against the filter plate. The seal bead comprises a first seal lip and a second seal lip, the former being elevated from the later. The filter frame has a limited vertical travel with respect to the filter plate, such that, in a lowermost position, only the first seal lip is in contact with the filter plate, and in an uppermost position, both the first seal lip and the second seal lip are in contact with the filter plate.

The frost crack prevention water mixer comprises a water mixing channel shell and a frost crack prevention mechanism, the water mixing channel shell is provided with a cold water inlet, a hot water inlet, a water mixing cavity, a pressure relief opening and a plurality of water outlets, and the cold water inlet, the hot water inlet, the pressure relief opening and the water outlets are all communicated with the water mixing cavity; the frost crack prevention mechanism comprises a fixing block, a diaphragm and an elastic piece, the fixing block and the diaphragm are fixedly connected to the pressure relief opening, the diaphragm seals the pressure relief opening, one end of the elastic piece abuts against the fixing block, the other end of the elastic piece is fixedly connected with a cushion block, and the elastic piece is used for driving the cushion block to move in the direction away from the fixing block so that the cushion block can abut against the diaphragm. According to the frost crack prevention water mixer, the expansion volume of ice can be absorbed, and the possibility that the water mixing channel shell and the valve are cracked and damaged is reduced.

The utility model discloses a fluorine lining diaphragm valve, which belongs to the technical field of diaphragm valves, and is characterized in that the fluorine lining diaphragm valve comprises a valve body, a valve cover and a diaphragm sealing gasket, the valve cover is rotatably connected with a hand wheel, the fluorine lining diaphragm valve is further provided with a valve rod structure, the valve rod structure comprises a screw rod, a driving rod and a reinforcing block, the screw rod is in threaded connection with the hand wheel, and the screw rod and the driving rod are connected through a box body; a first moving block, a second moving block, a spring and other parts are arranged in the box body, the top surface of the first moving block and the top surface of the second moving block are obliquely arranged, and buffering pieces are arranged on the sides, away from each other, of the first moving block and the second moving block, so that the screw rod can drive the first moving block and the second moving block to extrude the corresponding buffering pieces; the spring is arranged between the screw rod and the driving rod and is connected with the screw rod and the driving rod; the reinforcing block is embedded in the diaphragm sealing gasket, and the driving rod penetrates through the diaphragm sealing gasket to be connected with the reinforcing block, so that the effects of enhancing the stability and the sealing performance of the fluorine-lined diaphragm valve, improving the use performance and prolonging the service life are achieved.

The precise three-way backwash valve is used for solving the problem that in the prior art, due to the fact that a driving system is complex, the opening synchronism of a water inlet and a sewage discharging plug is poor, and comprises a valve body, the water inlet is formed in one end of the valve body, a filtering opening is formed in the other end of the valve body, the sewage discharging opening is formed in the bottom of the valve body, and a detachable valve cover is arranged at the top end of the valve body. A sealing diaphragm is arranged in the valve body, the sealing diaphragm and the valve cover form a driving bin, a driving device is arranged in the driving bin, a supporting partition plate is arranged in the valve body, the top end of the supporting partition plate is an arc-shaped concave face, the top end of the supporting partition plate can be matched with the sealing diaphragm to seal the water inlet, and a connecting piece is fixed to the bottom face of the sealing diaphragm. The connecting piece is located on the side, close to the filtering opening, of the supporting partition plate and hinged to a connecting rod, and a sewage discharging plug is hinged to the bottom end of the connecting rod. The sealing diaphragm is matched with the connecting piece and the connecting rod to synchronously drive the pollution discharge plug to move, so that the movement synchronism of the sealing diaphragm and the pollution discharge plug is ensured.

A combination electrode includes a working electrode, a reference electrode, a hydrogel diaphragm, an outer tube and an inner tube. The working electrode is disposed in the inner tube. The reference electrode is disposed in a reference chamber formed between the inner tube and the outer tube. The hydrogel diaphragm seals the opening between an end of the outer tube and the inner tube when the hydrogel swells upon coming in contact with a first electrically conductive fluid that is introduced into the reference chamber. The diaphragm is coupled to the reference electrode in an electrically conductive manner through the first electrically conductive fluid, which contacts both the reference electrode and the diaphragm. The inner tube is closed by a glass membrane that is coupled to the working electrode in an electrically conductive manner through a second electrically conductive fluid that contacts both the glass membrane and the working electrode.

An ultrasonic surgical instrument includes a handpiece casing and an electromechanical transducer assembly disposed inside the handpiece casing, where the transducer assembly includes a front driver and the transducer assembly has a longitudinal axis. A probe is operatively connected to the front driver at an acute angle to the longitudinal axis of the transducer assembly. A sheath surrounds the probe and is connected at a proximal end to the handpiece casing. The sheath is attached to the casing by a twist quick release coupling. A diaphragm seal inside the proximal end of the sheath blocks liquid irrigant in a cylindrical space between the sheath and the probe from penetrating proximally of a port feeding irrigant to the space. The front driver is geometrically configured to enable an angled connection of probe to handpiece proximate a nodal plane.

The utility model discloses a diaphragm sealing piece processing device, which belongs to the field of diaphragm sealing piece production, and comprises a box body driving piece, a lower combining block driving piece is arranged on the box body driving piece, and an annular lower blade driving piece and a cylindrical bulge driving piece are arranged at the top of the lower combining block driving piece. A first through hole driving piece is arranged on the cylindrical protrusion driving piece. A driving piece is arranged above the lower closing block driving piece, an output shaft driving piece of the driving piece is connected with an upper closing block driving piece in a sleeving mode, the upper closing block driving piece is of a hollow structure, and a second through hole driving piece is arranged at the bottom of the upper closing block driving piece; when the annular upper blade and the annular lower blade are matched to complete edge cutting, the punching rod punches the top of the diaphragm sealing piece, the machining steps and time are greatly reduced, machining of more diaphragm sealing pieces can be completed within a short time, and the overall production efficiency is improved.

The invention discloses an assembling method of a diaphragm seal and an assembling method of an interlocking valve, aims to solve the technical problem of leakage of a diaphragm part, and belongs to the technical field of interlocking valve assembling. According to the assembly method for the diaphragm seal, a screw for pressing a diaphragm is evenly stressed and tightened, the tightening force is gradually increased, and the increasing torque is smaller than the initial torque of the screw until the final fastening torque is achieved. The interlocking valve comprises a valve body, a valve cover, a support, screws and a membrane, lubricating grease is coated on the membrane, the membrane is installed between the valve cover and the support through the support, the support is fastened on the valve cover through the three screws, gaskets are arranged between the screws and the support, the valve cover is installed on one side of the valve body, and the valve cover is installed on the other side of the valve body. The three screws enable the diaphragm to generate elastic deformation through initial torque, then the torque is gradually increased, the gradually increased torque is smaller than the initial torque, the screws are alternately tightened, and the final tightening torque is 6-8 N * m + / -0.3 N * m.