70results about How to "Prevent abnormal deformation" patented technology

An outside gas type accumulator has a mechanism for reducing the pressure difference occurring when liquid confined in a liquid chamber and gas filling the liquid chamber in zero-down state expand thermally, and restrains abnormal deformation of a bellows by reducing the pressure difference between the inside and outside of the bellows. A pressure difference regulation mechanism (21) reduces the pressure difference occurring when liquid confined in the liquid chamber (11) and gas filling the liquid chamber in the zero-down state expand thermally. The regulation mechanism (21) has a movable plate (22) supported by a coil spring (23) on the oil port (4) side of a bellows cap (8). During normal operation, the plate (22) moves together with the cap (8) by being supported by the spring (23), and the plate (22) moves together with the cap (8) and to be brought into contact with a seal (13) in the zero-down state. When the liquid and the filling gas expand thermally, the plate (22) maintains contact with the seal (13), and the cap (8) moves up to a position where the liquid pressure and the gas pressure are balanced while compressing the spring (23).

A combustion gas seal for injectors having the function to prevent the leak of a combustion gas when the injector is mounted on a cylinder head of an engine, wherein the seal is made of a resin and the entire surface of the combustion gas side end of the seal is exposed to the pressure of the combustion gas. The seal exhibits improved sealing performance together with improved soundproofing effect.

The invention relates to a unfolding type cable-rod-film combined emergency bridge, which consists of a plurality of bridge units; each bridge unit consists of a cable-rod-film composite beam, a bridge faceplate and supports; the cable-rod-film composite beam is mounted in the groove of the supports; and the bridge faceplate is mounted on the cable-rod-film composite beam; the cable-rod-film composite beam consists of a top boom, a bottom boom, a low pressure inflated air bag and a stay cable; the top and the bottom boom are disposed on the upper and lower side of the beam; the low pressure inflated air bag is disposed in the middle of the beam; the stay cables are disposed on both sides of the beam; the bag is disposed on the bottom boom; the top boom is disposed on the bag; cross section of the top and the bottom boom and the low pressure inflated air bag is superposed with the vertical symmetrical axis; the cables are winded individually along both sides of the rod and passed through the node ring disposed on the rod side, and fixed by tightening the cables on both sides to connect the cable, the rod and the low pressure inflated air bag into one integral body. The novel emergency bridge achieves the advantages of extremely light weight, convenience for storing and carrying and rapid installation, and has high practical value and broad application prospect.

An outer gas type or inner gas type accumulator is provided with a mechanism for reducing a pressure difference generated when liquid and gas confined in a liquid chamber at the time of a zero-down state is expanded thermally. The mechanism reduces the pressure difference between the inside and outside of a bellows to suppress abnormal deformation of the bellows. A movable plate supported by spring means is provided on the bellows cap side of an oil port. In normal operation, the movable plate is supported by the spring means and separated from a seal. In a zero-down state, the movable plate is pushed by the bellows cap and makes contact with the seal while elastically deforming the spring means. When the liquid and gas confined in the liquid chamber in the zero-down state is expanded thermally, the bellows cap moves, with the movable plate being in contact with the seal, up to a position at which the liquid pressure and the gas pressure balance each other.

The invention discloses a packaging method of flat rolled toilet paper, and relates to the technical field of tissue packaging. The packaging method includes the steps of flattening, laminating, pushing packages into bags, packaging, sealing and packaging repeatedly. According to the packaging method, flattening is conducted on a paper roll twice, the paper roll is flattened and shaped completely, the situations of jumping and warping can be avoided, automatic laminating processing can be achieved, laminating packaging is completed automatically, and packaging operation is completed efficiently.

The invention relates to a spin forming device for a seamless metal pipe fitting, and belongs to the technical field of processing machines for the seamless metal pipe fitting. The device comprises a bed body, wherein the left side of the bed body is fixedly provided with a main shaft box driven by a main shaft motor; a guide rail is fixedly arranged on the right side of the bed body and is provided with a large carriage and a tailstock carriage from left to right in turn in a movable fit mode; the front and rear parts of a table top on the left side of the large carriage are connected with aspinning wheel middle carriage provided with a spinning wheel and a top wheel middle carriage provided with a top wheel, and the two middle carriages can transversely move relative to the large carriage; a spinning component consisting of a fixing plate, a roller bearing and a hollow shaft is fixedly arranged on a table top on the right side of the large carriage; the tailstock carriage is fixedly provided with an auxiliary shaft box; the seamless metal pipe fitting to be processed is sleeved in the spinning component; the left and right ends of the seamless metal pipe fitting to be processedare connected with the main shaft box and the auxiliary shaft box; and the external surface of the seamless metal pipe fitting to be processed is tangent to the spinning wheel and the top wheel. The device has a simple structure and low production cost and is convenient to operate.

A gas-filled switching apparatus has a gas-filled sealed container having a container body with a neck which surrounds an opening and a flange which extends outwards from the neck. A cover is disposed on the flange to cover the opening, and a gasket is disposed between the cover and the flange to form a seal around the opening. A plurality of clamps detachably secure the cover to the flange. Each clamp includes an adjustable pressing member exerting a clamping force on the cover and the flange.

The invention relates to a novel liquid cooling motorcycle cooler which comprises a liquid cooler and an engine oil cooler, wherein the liquid cooler comprises an externally-built liquid cooling heat radiator, a cooling liquid inlet, a cooling liquid outlet and a cooling liquid pump, wherein the cooling liquid inlet is connected with the upper end of an engine water jacket; the cooling liquid outlet is connected with the lower end of the engine water jacket; the water jacket, the cooling liquid outlet, the cooling liquid pump, the liquid cooling heat radiator and the cooling liquid inlet are connected sequentially in circulation; an engine oil cooler comprises an externally-built oil radiator, an oil outlet and an oil inlet, wherein the oil outlet is connected with an oil pump opening in an engine crankcase; the oil inlet is connected with the bottom of the engine crankcase; and the engine oil in the crankcase flows through the oil pump, reaches an oil radiator through the oil outlet, and reaches the crankcase through the oil inlet. By adopting the liquid cooling motorcycle cooler provided by the technical scheme, the whole engine is promoted to be cooled, machine elements are prevented from being deformed abnormally due to nonuniform cold and hot, which is much better for the normal operation of the engine.

The invention discloses an assembling and disassembling structure for a main machine and a cutter rest and a handheld tool. The assembling and disassembling structure for the main machine and the cutter rest comprises a main shell and an auxiliary shell detachably connected with the main shell. The auxiliary shell achieves rapid locking and unlocking with the main shell through matching between alocking ring, multiple lock buckles and a drive ring in the main shell and a locking groove on the auxiliary shell. By manually rotating the drive ring, the multiple lock buckles can be driven to switch between a third position and a fourth position; when the lock buckles are located at the third position, the lock buckles are embedded into the locking groove of the auxiliary shell to achieve locking; and when the lock buckles are located at the fourth position, the lock buckles retreat from the locking groove, and then locking of the auxiliary shell can be eliminated, and disassembly can be conducted. The assembling and disassembling structure adopts a rotary knob type unlocking structure, during unlocking, the situation that pressing is conducted hard to enable an elastic hoop to expandis not needed, and operation is easy; by the adoption of the assembling and disassembling structure for the main machine and the cutter rest, during installation, it is just needed to insert the auxiliary shell, pressing a button is not needed, the requirement for a user is low, and operation is convenient; and the locking stability of the assembling and disassembling structure for the main machine and the cutter rest is good.

A heat transfer member for a heat exchanger, is press-formed of a metallic thin sheet material into a prescribed shape by means of molds of a press forming device so that the heat transfer member has on at least one portion thereof a heat transfer face having opposite surfaces, which are to be brought into contact with heat exchange fluids, respectively. The heat transfer face comprises at least one set of irregularity patterns arranged in a row. Each of the at least one set of irregularity pattern units comprises (i) a central pattern portion having a plurality of recesses or projections provided with a prescribed pitch, (ii) a pair of heat exchanging irregularity pattern portions provided on opposite sides of the central pattern portion so as to be symmetrical with respect to the central pattern portion and (iii) at least one boundary pattern portion provided on at least one of respective outer sides of the pair of heat exchanging irregularity pattern portions so as to be adjacent to the respective outer sides thereof. The boundary pattern portion has a prescribed width and a plurality of recesses or projections provided with a same pitch as the plurality of recesses or projections of the central pattern portion so as to be in parallel therewith.

A knee bolster device for a vehicle is intended to enhance passenger safety performance by minimizing injury to passengers when a collision occurs. The knee bolster device is capable of preventing injury to passengers striking a lower crash pad panel and penetrating into an inner space of the lower crash pad panel because the lower crash pad panel is reinforced by a composite material and an impact energy absorbing structure installed in the inner space of the lower crash pad panel.

A container including an opening unit is provided to enable users to easily and uniformly form an opening without deforming or breaking the peripheral area of a bag film of a container main body. A container includes a container body, a cap, and an opening and main discharging member. The container body includes the following components: a cylindrical head with an openable unit at the upper end, a hook-stopping unit for stopping the opening and main discharging member, and external screw thread on an outer circumferential surface; and a body part. The opening and main discharging member is provided with the following components: an unsealing unit which is provided with an opening / sealing hole; a jointing part which is jointed with the hook-stopping unit, thereby causing the opening and main discharging member in an anti-releasing state at the head of the container body; and an injection-out opening which can inject inner object out when the opening and main discharging member is stopped at the head part of the container body. When the injection-out opening moves to the body side along with the rotation of the cover in screwing with the cover, and the unsealing unit is used for opening and closing the openable unit, the jointing part is jointed with the hook-stopping unit, thereby forming the anti-releasing state at the head of the container body.

The invention provides a compound bottom sheet of a magnetic induction heating cooker, belongs to the technical field of mechanics, and aims to solve the problem that a metallic sheet on the bottom part of the conventional cooker cannot completely avoid sudden swelling and / or deformation of the bottom part. The compound bottom sheet arranged on the bottom part of the cooker comprises a sheet body made of a magnetic conduction material, wherein the sheet body is circular ring-shaped; the outer edge of the sheet body is provided with a plurality of outer through holes of which the openings face the outer edge and which are extended inward, while the inner edge is provided with a plurality of inner through holes of which the openings are toward the inner edge and which are extended outward. The compound bottom sheet of the magnetic induction heating cooker has the advantages of little thermal expansion deformation, stable structure, difficult falling-off and long service life.

The invention relates to a peach slice regulating device and specifically relates to a device for stacking and cutting peach slices. The device for stacking and cutting peach slices comprises a material channel, wherein the feeding end of the material channel is higher than the discharge end thereof. The device further comprises a stacking box, a spring and a hook, wherein the cross section of the stacking box is closed at three sides, and a material stacking plate is arranged on the bottom of the stacking box; the discharge end of the material channel is located at one side of the opening of the stacking box, the upper end of the spring is suspended to the hook, the lower end of the spring is connected with the upper end of the stacking box through a transverse column, and the two ends of the transverse column are fixedly connected to the stacking box. The device is capable of automatically stacking flaky peach slices, so that the efficiency of stacking is improved, and therefore, the production efficiency is improved.

The invention relates to the technical field of tire quality detection, and discloses an automobile tire quality analysis device and method based on edge cloud collaboration.The automobile tire quality analysis device comprises a support, a transverse plate, a supporting plate, a tire body and two oscilloscope probes; the two oscilloscope probes are symmetrically arranged on the two sides of the tire body and fixedly connected with the upper end of the transverse plate, one side of the supporting plate is rotationally connected with a transverse pipe through a rolling bearing, one end of the transverse pipe is fixedly connected with a rotating connector, and the other end of the transverse pipe is connected with a plurality of fixing mechanisms. The tire body is connected to the multiple sets of fixing mechanisms in a sleeving mode, and the upper end of the transverse plate is connected with the side wall of the supporting plate in a sleeving mode through a strip-shaped through hole. According to the automobile tire quality analysis device and method based on side cloud collaboration, the tire mounting speed during detection can be remarkably increased, the tire side wall of the tire can be efficiently detected and analyzed, and the tire quality can be accurately analyzed.

The invention discloses a novel mould. A mould body comprises a through pipeline which is arranged along an axis position, wherein the pipeline comprises an opening part, a gradual reducing part and an extending part; the opening part is arranged on the surface of the mould body; the opening part extends towards one end of the pipeline; diameter of the opening part is greater than outer diameter of a to-be-mounted tube; opening part aperture of the opening part is greater than aperture of the gradual reducing part; and the extending part extends to the tail end of the pipeline from the other end of the gradual reducing part. According to the novel mould disclosed by the invention, the outer diameter of the tube is effectively prevented from generating abnormal deformation, product quality is improved, and service life of a product is prolonged, so that the novel mould has beneficial effects of low modifying cost, reduced manufacture cost, and the like.

The invention discloses a die. A die body comprises a through pipe arranged along the axis position; the pipe comprises an opening part, a gradually-shrinking part and an extending part; the opening part is arranged on the surface of the die body and extends to one end of the pipe; the diameter of the opening part is larger than the outer diameter of a to-be-installed pipe product; the caliber of the opening part is larger than the caliber of the gradually-shrinking part; and the extending part extends from the other end of the gradually-shrinking part to the tail end of the pipe. By means of the die, the outer diameter of the pipe product is effectively prevented from abnormally deforming, the product quality is improved, the service life of the product is prolonged, and the die has the beneficial effects of being low in improvement cost, saving cost and the like.

In a rack boot having a bellows portion, a cylindrical portion which is formed at one end of the bellows portion so as to be fixed to a tie-rod and a second cylindrical portion which is formed at the other end of the bellows portion so as to be fixed to a steering gearbox, the bellows portion is divided into a first bellows portion which extends from a third ridge of ridge portions resulting when the ridge portions are counted from an end portion of the bellows portion which lies to the second cylindrical portion to the other end portion thereof which lies to the first cylindrical portion and a second bellows portion which extends from the third ridge to the end portion thereof which lies to the second cylindrical portion, and at least the first bellows portion is formed into a tapered shape.

The invention discloses a novel mould structure. A mould body comprises a through pipeline which is arranged along a shaft center position; the pipeline comprises an opening part, a gradual reducing part and an extending part; the opening part is arranged on the surface of the mould body; the opening part extends towards one end of the pipeline; the diameter of the opening part is greater than the outer diameter of a to-be-mounted tube; opening part aperture of the opening part is greater than aperture of the gradual reducing part; and the extending part extends to the tail end of the pipeline from the other end of the gradual reducing part. According to the novel mould structure disclosed by the invention, the outer diameter of the tube is effectively prevented from generating abnormal deformation, product quality is improved, and service life of a product is prolonged, so that the novel mould structure has beneficial effects of low modifying cost, cost saving, and the like.