129results about How to "Smooth exhaust" patented technology

The invention relates to the technical field of batteries, in particular to a battery cell and a battery pack. According to the battery cell, a first cover plate is provided with a pressure relief channel and a supporting boss; the pressure relief piece is mounted in the pressure relief channel; the blocking piece is arranged on the supporting boss, the blocking piece and the pressure relief channel are oppositely arranged in a spaced mode, a first pressure relief hole is formed in the blocking piece, and a second pressure relief hole is formed in the insulation protection piece; the effective opening area of the pressure relief piece is S1, the total area of the first pressure relief holes is S2, the total area of the second pressure relief holes is S3, S2 / S1 is larger than or equal to 1.22 and smaller than or equal to 1.3, and S3 / S2 / 1.6 is larger than or equal to 1.6 and smaller than or equal to 2. When the temperature of the battery cell is relatively low, the insulation protection piece has enough strength and ensures that the exhaust rate is not influenced; when the internal insulating part is fused and fails, and the pole group moves in the direction close to the pressure relief part, the baffle part can support the pole group to ensure the exhaust requirement, and can also prevent comburent in the battery cell from splashing outwards through the pressure relief part, so that the safety performance of the battery cell is improved.

The invention relates to an automatic exhaust valve capable of preventing water carrying, and belongs to the technical field of exhaust valves, the automatic exhaust valve comprises a valve body, a floating ball opening and closing device and a water filtering device, the interior of the valve body is divided into an exhaust chamber and an aeration chamber through a partition plate, the partition plate is provided with a gap groove used for communicating the exhaust chamber with the aeration chamber, the top of the exhaust chamber is provided with a valve cover, and the valve cover is provided with an exhaust device; the floating ball opening and closing device is arranged in the exhaust chamber to float upwards to seal the exhaust device or sink to open the exhaust device, a water inlet is formed in the bottom of the aeration chamber, and the water filtering device is arranged in the aeration chamber. Separated water and gas enter the exhaust chamber through the gap groove, exhaust is smoother, exhausted gas does not contain water, the floating ball opening and closing device floats upwards to close the exhaust device when water is excessive, and water spraying is prevented.

According to the energy storage device, the energy storage module and the electric equipment, smooth exhaust of the energy storage device can be guaranteed, it is guaranteed that an anti-explosion valve cannot be opened in time for pressure relief, and the safety of the energy storage device is improved. The energy storage device comprises a shell, an electrode assembly and a cover plate, the electrode assembly is contained in a containing cavity of the shell, the cover plate is installed on the shell and seals an opening of the shell, the cover plate comprises a main body part and a boss part, the main body part comprises a first surface and a second surface which are oppositely arranged, and the boss part is fixedly connected to the main body part and protrudes relative to the first surface; the boss part comprises a first surface deviating from the electrode assembly and a second surface arranged back to the first surface, the second surface is convexly provided with at least one first sub-bulge, the at least one first sub-bulge and the explosion-proof hole of the boss part are arranged at an interval, and the first sub-bulge and the explosion-proof hole of the boss part are arranged along the height direction of the energy storage device. The surface, facing the electrode assembly, of the at least one first sub-protrusion is located on the side, away from the first surface, of the second surface, and the at least one first sub-protrusion and the electrode assembly are oppositely arranged.

The invention relates to the technical field of batteries, in particular to a battery cell and a battery pack. According to the battery cell, a first cover plate is provided with a protruding supporting part; the pressure relief piece is installed on the first cover plate, the partition piece is connected with the supporting part, and the partition piece and the pressure relief piece are arranged at intervals; the total contact area of the supporting part and the separator is S1, and the area of the side, facing the supporting part, of the separator is S2; the area of the pressure relief piece is S0; when S0 is smaller than or equal to 100 mm < 2 >, the supporting parts are arranged at the four corners of the separator, and S1 / S2 is larger than or equal to 1 / 5; when S0 is larger than 100 mm < 2 >, the total contact area of the two supporting parts at the two ends in the width direction and the separator is S11, and the total contact area of the two supporting parts at the two ends in the length direction and the separator is S12; s11 / S12 is greater than 1.3, and S1 / S2 is greater than 1 / 4. It can be guaranteed that the separator has enough strength for supporting the pole group, the situation that the exhaust area is insufficient due to deformation of the separator is avoided, and the safety performance of the battery cell is improved.

The invention relates to the technical field of batteries, in particular to a battery cell and a battery pack. According to the battery cell, a first cover plate is provided with an exhaust hole and is provided with a convex part protruding towards the interior of the battery cell; the pressure relief piece is mounted in the exhaust hole; the supporting piece is mounted on the convex part, so that the supporting piece and the first cover plate are arranged at an interval, and the projection of the supporting piece on the first cover plate covers the exhaust hole; a first ventilation area is formed on the supporting piece, and gas can flow to the exhaust hole through the first ventilation area; the sizes of the pressure relief piece and the first ventilation area in the first direction are L1 and L2 respectively; the sizes of the pressure relief piece and the first ventilation area in the second direction are W1 and W2 respectively; 1.15 < = L2 / L1 < = 1.3; and 1.15 < = W2 / W1 < = 1.3. According to the invention, even if the interior of the battery cell of the pole group is displaced, the supporting piece can also prevent the pole group from moving towards the direction close to the exhaust hole, so that the condition that the pole group shields or even completely blocks the exhaust hole is avoided.

The utility model discloses a mine ventilation device which comprises a main exhaust pipe, an auxiliary exhaust pipe vertically communicated with the top end of the main exhaust pipe, a fan installed at the outer end of the auxiliary exhaust pipe, a filter mesh coaxially installed at a pipe opening of the auxiliary exhaust pipe, a transmission shaft coaxially connected with the filter mesh in a rotating mode, and a transmission shaft connected with the transmission shaft in a rotating mode. The outer end of the transmission shaft is in transmission connection with a driving motor, the driving motor is installed on the outer wall of the cross section of the auxiliary exhaust pipe, brush strips are installed on the circumferential face of the transmission shaft, and bristles of the brush strips are attached to the side wall of the filtering net piece in a sliding mode. The utility model has the beneficial effects that dust adhered to the filter mesh can be cleaned through the rotating brush strip, and normal air exhaust and filtration of the filter mesh are ensured, so that smooth air exhaust under a mine is ensured, and mine safety accidents are avoided.

The utility model relates to the technical field of injection molds, in particular to a double-color mold structure for reducing exhaust flash, which comprises a fixed mold and a movable mold matched with the fixed mold, the fixed mold comprises a primary fixed mold and a secondary fixed mold, the primary fixed mold is used for injection molding of a first color sizing material, and the secondary fixed mold is used for injection molding of a second color sizing material. A primary forming exhaust groove is formed in a parting surface, matched with the movable mold, of the primary fixed mold; and the primary forming exhaust groove is formed in the direction close to the inner side of a primary cavity formed by the movable mold and the primary fixed mold and is communicated with the primary cavity. According to the utility model, exhaust flashes during injection molding of the double-color mold can be reduced, and the quality of injection-molded products is improved.

The invention relates to the technical field of vehicle shock absorbers, in particular to a low-noise shock absorber strut assembly and a vehicle. The low-noise shock absorber strut assembly comprises a supporting assembly and a shock absorber assembly. In the supporting assembly, a gasket, a first damping part, an automobile body sheet metal part, a second damping part and a cup base are attached in sequence. A vehicle body sheet metal part is clamped between the first damping part and the second damping part. In the first damping part, the first damping ring and the multiple protruding blocks are integrally formed. The first damping ring and the second damping ring are coaxial. The protruding block is located on the side, facing the second damping ring, of the first damping ring. A plurality of grooves are formed in the side, facing the first damping ring, of a second damping ring of the second damping part. In the shock absorber assembly, one end of a shock absorption cylinder is detachably connected with a cup base. The piston rod sequentially penetrates through the damping cylinder, the cup base, the second damping part and the first damping part in a sliding mode. And the axial depth of the groove along the piston rod is greater than the axial height of the bump along the piston rod. Therefore, the problem of noise reduction of the vehicle shock absorber is solved.

The invention relates to an autoclaved laminating device of laminated glass and a preparation method of the laminated glass, the autoclaved laminating device of the laminated glass comprises a vacuum bag, the vacuum bag is used for placing the laminated glass, the vacuum bag is connected with a first vacuum pump through a first exhaust pipe, the vacuum bag is arranged in a sealing device, and the first exhaust pipe is connected with a second vacuum pump through a second exhaust pipe. The first exhaust pipe penetrates through a sealing device and then is connected with the vacuum bag, a valve is arranged on the sealing device, and the sealing device is connected with a second vacuum pump through a second exhaust pipe. The sealing device is arranged on the outer layer of the vacuum bag, and the inner surface and the outer surface of the vacuum bag are synchronously vacuumized, so that the rubber sheet is not stressed in the vacuumizing link, and the air guide lines of the rubber sheet exhaust smoothly, so that the aims of quickly and smoothly exhausting air in a cementing layer and avoiding residual gas retention are fulfilled; and the phenomena of degumming and bubbles of the laminated glass caused by residual gas are prevented.

The application relates to the technical field of battery packs and specifically provides a battery pack and a power utilization device. The battery pack comprises a box body and a battery pack; the box body comprises a frame and a bottom plate, the bottom plate is arranged at the bottom of the frame, the frame is provided with an exhaust port, the bottom plate is provided with a plurality of grooves at intervals and forms an exhaust passage, the exhaust passage is in communication with the exhaust port; the battery pack is arranged in the box body, and the bottom plate supports the battery pack; the battery pack comprises a plurality of battery cells, the battery cells are provided with explosion-proof valves, the explosion-proof valves are arranged towards the bottom plate, and the explosion-proof valves at least partially project and coincide with the exhaust passage. In the application, the plurality of grooves are arranged at intervals on the bottom plate to form the exhaust passage, the explosion-proof valves on the battery cells are arranged towards the exhaust passage, high-temperature gas and eruption matter sprayed from the explosion-proof valves can be timely discharged from the exhaust passage and smoothly discharged from the battery pack through the exhaust port in the case of thermal runaway, exhaust blockage is prevented, thermal runaway is prevented from further spreading, and the safety of the battery pack is ensured.

This application relates to the field of new energy vehicle charging equipment technology, and discloses a multifunctional mobile vehicle-mounted charging device, including a carrier vehicle. A battery pack and charging module are installed inside the vehicle's cargo compartment. A slide rail is fixedly connected to the top of the cargo compartment, and a support frame is slidably connected to the slide rail. An air extraction component is fixedly connected inside the support frame to extract air from inside the cargo compartment to the outside, thereby accelerating the ventilation efficiency between the inside and outside of the cargo compartment. The bottom end of the support frame facing the rear door of the cargo compartment is connected to the rear door of the cargo compartment via a connecting rod, and the top end is hinged to one end of a drive arm. By directly transmitting the opening action of the rear door of the cargo compartment to the support frame via the connecting rod, the support frame and the air extraction component are driven to slide out of the cargo compartment along the slide rail. This transforms the necessary action of opening the door into the driving force for the deployment of the cooling system and wiring components. The device is ready without additional operating steps, and the linkage process is stable and reliable.

The utility model discloses a pneumatic nail gun. A nailing mechanism, a driving switch valve and a nailing piston are arranged on a gun body. The gland is provided with an air source air inlet, a main air inlet, a main air outlet, a first air vent, a second air vent, a third air vent, a valve element installation opening and a valve element, the valve element installation opening is plugged by a plugging piece after the valve element enters the gland body from the valve element installation opening, the valve element can reciprocate in the gland body, and the movement direction of the valve element is perpendicular to the movement direction of the nailing piston; the valve element is axially provided with an air inlet channel, so that the main air inlet and the air inlet channel are communicated with the third ventilation opening. When the driving switch valve is not opened and the valve element enables the first air vent, the main exhaust port and the second air vent to be communicated, gas at the top of the nailing piston can be exhausted from the valve element. The main air inlet and the air inlet channel are communicated with the third air vent, and an air source enters to push the nailing piston to move towards the gland to reset. When the driving switch valve is opened, the valve element is pushed by an air source of the air source air inlet in the direction away from the main air inlet, the valve element moves to enable the first air vent, the main exhaust port and the second exhaust port to be communicated, and the air source pushes the nailing piston to move in the direction away from the gland through the first air vent to achieve action of the nailing mechanism.

The utility model relates to the technical field of industrial machinery, and discloses a continuous corrugated steel web manufacturing device which comprises a shell, a roller conveyor is fixedly installed at the bottom of the shell, supporting plates are fixedly installed on the front side and the rear side of the roller conveyor, and a dust collecting mechanism is fixedly installed at the bottom of the roller conveyor. According to the continuous corrugated steel web manufacturing equipment, the dust collecting hopper and the suction fan are arranged, suction force is generated from the lower portion and diffused through an opening of the dust collecting hopper, dust is gathered and enters the working box, the dust flying possibility is reduced, the influence on nearby workers is reduced, meanwhile, a filter screen plate designed in an inclined mode is adopted, and the dust collecting efficiency is improved. According to the dust collection mechanism, dust can be automatically guided into the collection box through gravity when no airflow exists, the dust collection mechanism has a certain self-cleaning function by adopting an unpowered structure, the labor amount needed by workers for cleaning is reduced, and the cost needed by cleaning is reduced.

The food processor comprises a main machine and a cup body assembly installed on the main machine, a motor assembly and a power panel assembly are arranged in the main machine, the power panel assembly is arranged below the motor assembly, the power panel assembly is provided with a first air inlet channel in the first horizontal direction, and the motor assembly comprises a motor; the motor is provided with a motor heat dissipation cavity, the motor heat dissipation cavity is provided with a motor air inlet and a motor air outlet, the first air inlet duct is communicated with the motor air inlet through an axial communication channel, an air duct assembly is further arranged between the power panel assembly and the motor assembly, an exhaust air duct is arranged between the motor assembly and the air duct assembly, and the motor air outlet is communicated with the exhaust air duct. The air exhaust duct spirally extends downwards in the axial direction of the main machine. The motor and the power panel are axially arranged, the heat dissipation effect of the motor and the power panel can be improved by optimizing the air duct structure, and meanwhile noise reduction of the machine can be improved.

The utility model discloses a buffer type silencer. An air inlet and an air outlet are formed in the two ends of a shell respectively. A first baffle plate and a second baffle plate are fixed in the shell from the air inlet to the air outlet; an inner barrel and an outer barrel are fixed between the first baffle and the second baffle, an air inlet is formed in the first baffle outside the outer barrel and communicated with the air inlet, and at least one first air passing opening is formed in the inner wall of the outer barrel located at the position of the second baffle and communicated with the air inlet. At least one second air passing opening is formed in the inner wall, located at the first baffle, of the inner cylinder, an air outlet is formed in the second baffle located within the range of the inner cylinder, and the air outlet is communicated with the exhaust opening. Under the condition that the length of the external middle body is inconvenient, the inner cylinder and the outer cylinder are arranged to increase exhaust channels, the circumferential air inlet and the central air outlet are matched to increase the exhaust smoothness, and the porous damping plate is matched to absorb sound waves.

The utility model discloses a kind of rolling mill water-cooling circulation systems, including clean ring pool (1), the top of clean ring pool (1) is equipped with cooling tower (2), still including multiple air-water coolers connected with different direct current motor (4) respectively, air-water cooler connects water tank (5), the bottom of clean ring pool (1) is equipped with water inlet main pipe (6), water pump (7) is equipped on water inlet main pipe (6), water inlet main pipe (6) is connected with multiple water tank (5) by multiple water inlet branch pipes (8) respectively, the top of cooling tower (2) is equipped with backwater main pipe (9), backwater main pipe (9) is connected with multiple water tank (5) by multiple backwater branch pipes (10) respectively, multiple water tank (5) is divided into two groups according to the water delivery direction of water inlet main pipe (6), three-way valve (11) is equipped on the backwater branch pipe (10) connected with rear group water tank (5).The utility model has the advantages of avoiding direct current motor overheating, improving rolling mill production efficiency.

The invention discloses a rubberizing method and an automatic rubberizing machine, and the rubberizing method comprises the following steps: S1, providing a pressure-sensitive adhesive sticker; the pressure-sensitive adhesive sticker comprises black adhesive, a blue film arranged on the top surface of the black adhesive and a bottom film arranged on the bottom surface of the black adhesive; a reticulate pattern structure is arranged on the bottom film, and a reticulate pattern structure matched with the bottom film is arranged on the bottom surface of the black glue; the blue film comprises a release film with the thickness of 0.03 to 0.04 mm, and the gram weight of release force is 100 to 200gf; s2, pasting the pressure-sensitive adhesive obtained in the step S1 to the concave surface structure by adopting an automatic adhesive pasting machine; the automatic adhesive tape pasting machine comprises an adhesive tape pre-pasting device and a pressure maintaining device, the adhesive tape pre-pasting device is used for pre-pasting the edge area of the pressure-sensitive adhesive tape to the concave surface structure, and the pressure maintaining device is used for completely pasting the pressure-sensitive adhesive tape pre-pasted to the concave surface structure to the concave surface structure. According to the rubberizing method, the rubberizing quality on the concave surface structure can be improved, bumps and top film release caused by bubbles generated between the rubberizing part and the concave surface structure are avoided, and the rubberizing efficiency is improved.

The utility model discloses an integrated artificial airway temperature and humidity pipeline, which relates to the technical field of medical auxiliary instruments and comprises an oxygen pipe communicated with the air outlet end of an oxygen bottle, and the air outlet end, far away from the oxygen bottle, of the oxygen pipe is communicated with a venturi tube used for balancing oxygen flow. Two heating pipe assemblies used for heating oxygen are arranged on the side, away from the oxygen pipe, of the Venturi pipe, and one end of one heating pipe assembly is communicated with the air outlet end of the Venturi pipe. The bent pipe is used for discharging gas exhaled by a patient, the light plastic ball is arranged at the top end of the bent pipe, the gas exhaled by the patient can blow the plastic ball to move upwards, the exhaust port in the bottom end of the hollow column is exposed, smooth exhaust is guaranteed, the plastic ball can be adsorbed when the patient inhales, the plastic ball moves downwards to block the exhaust port, and the exhaust port is not blocked. A patient is prevented from directly inhaling air in the environment into the artificial airway, so that the health of the patient can be guaranteed.

This utility model belongs to the technical field of mufflers, and relates to an irregularly shaped muffler for large-displacement motorcycles. It includes a flat muffler cylinder, within which a muffler assembly is disposed, connecting an intake chamber and an exhaust chamber. The muffler cylinder is connected to the engine's exhaust port via the exhaust assembly. The exhaust chamber is connected to the outside via a first tailpipe and a second tailpipe arranged side-by-side along its long side. The intake chamber and the exhaust assembly are connected via a conical connector. The cross-sectional area of ​​the conical connector gradually decreases from the muffler cylinder towards the exhaust assembly. The exhaust assembly includes a rear connecting pipe, a catalytic sleeve, a first exhaust pipe, and a second exhaust pipe. The first and second exhaust pipes are respectively connected to the two exhaust ports of a motorcycle's twin-cylinder engine. The irregularly shaped muffler for large-displacement motorcycles provided by this utility model has higher exhaust efficiency and can better meet the emission requirements of large-displacement motorcycles.

The invention relates to the technical field of airflow silencing, in particular to an automobile airflow silencer which comprises a shell and a shell air inlet. The connecting pipe is connected to the inner wall of the air inlet of the inner shell in an inserted mode, and a rectangular or round hole communicated with the first inner cavity is formed in the outer wall of the connecting pipe. The air inlet pipe is connected to the inner wall of the air inlet of the shell in an inserted mode, and the air inlet pipe corresponds to the connecting pipe in position. The front end of the air outlet pipe penetrates through the outer shell air outlet and then is inserted into the inner wall of the inner shell air outlet, and a rectangular or circular hole communicated with the interior of the outer shell is formed in the outer wall of the lower end of the air outlet pipe. By improving the automobile airflow silencer, the automobile airflow silencer has the advantages of being reasonable in structural design, rapid in silencing, smooth in exhaust and capable of changing the exhaust sound effect, and therefore the problems and defects in the prior art and equipment are effectively solved.

The utility model discloses a floor system core mold structure convenient to pour, which relates to the field of floor system plate construction, and adopts the technical scheme that the floor system core mold structure comprises a plurality of groups of hollow mold boxes, each group of hollow mold boxes comprises two cuboid mold boxes which are independently distributed in parallel and a plurality of connecting pieces, and two cushion columns are respectively arranged at the bottom of each cuboid mold box; a gap is reserved between the opposite inner side walls of the two cuboid mold boxes, the opposite inner sides of the two cuboid mold boxes are provided with an isolation column and a positioning groove respectively, and the end of the isolation column of one cuboid mold box is matched with the positioning groove of the other cuboid mold box; a plurality of clamping grooves are formed in the tops or the side portions of the two cuboid mold boxes respectively, hooks hung in the clamping grooves are arranged at the two ends of the connecting pieces respectively, and the cuboid mold boxes in the same group are tensioned together through the connecting pieces. Due to the fact that the gap is reserved in the middle, air can be exhausted smoothly, hollowing in the middle is avoided, the construction quality is improved, the gap between the two cuboid mold boxes can form a rib supporting structure, and the supporting strength is improved.

This invention provides a demolding tool suitable for complex-shaped rubber parts, belonging to the technical field of demolding tools. It includes a base plate, a support rod fixedly mounted on the surface of the base plate, an operating box fixedly connected to the end of the support rod, a demolding assembly disposed at the bottom of the operating box, a buffer assembly used in conjunction with the operating box, a mold snapped into the inner cavity of the operating box, a cover plate snapped into the end of the operating box, and a through hole formed on the surface of the cover plate. This invention, through the linkage of the driving component and the cooperating component, allows the crank handle to drive the sliding column to slide precisely within the sliding frame, enabling the rotating shaft to apply force at multiple angles, effectively solving the demolding problem of irregularly shaped rubber parts. The buffer assembly adopts a composite shock-absorbing structure of spring and telescopic cylinder, combined with a load-bearing system composed of an elastic block and a rotating rod, significantly reducing damage to the mold from demolding impacts. The modular design of the mold and cover plate facilitates quick replacement.

The present invention discloses a slim design, universal full heat exchange and haze removal integrated machine, comprising a closed machine body, a first baffle, a second baffle and a heat exchange core arranged in the machine body, the first baffle dividing the machine body into an upper front air inlet cavity and a lower front air outlet cavity, the second baffle dividing the machine body into an upper rear air outlet cavity and a lower rear air inlet cavity, the upper front air inlet cavity, the air inlet passage of the heat exchange core and the lower rear air inlet cavity forming an air inlet passage, the lower front air outlet cavity, the air outlet passage of the heat exchange core and the upper rear air outlet cavity forming an air outlet passage, an exhaust fan arranged in the lower front air outlet cavity, and an air inlet fan arranged in the lower rear air inlet cavity. The present invention has a simple structure and strong practicality.

The utility model discloses a powder pressing die with breathable steel, which comprises a base, a support frame mounted on the base, a jacking mechanism mounted on the support frame, a lower die plate fixedly connected with the jacking mechanism, a first guide post mounted on the support frame, a die plate mounted on the first guide post, a second guide post mounted on the die plate, and a top plate mounted on the second guide post. A downward pressing mechanism is installed on the top plate and fixedly connected with the upper die plate, and a cleaning mechanism is installed on the upper die plate. Due to the arrangement of the breathable steel, air can be smoothly exhausted through the breathable steel in the process that powder is compacted, the situation that air is pressed into the powder through the pressing block, and a pressed powder cake is swelled is avoided, and therefore the quality of the pressed powder cake is improved; air in the compressed air storage tank sequentially passes through the air conveying pipe and the air inlet pipe to enter the ventilation steel, powder in the ventilation holes in the ventilation steel is blown away, and therefore the powder is prevented from being left on the pressing block, and the problem that the powder is left on the pressing block is solved.

A draught fan inclined horizontal type smoke exhaust subassembly comprises an exhaust fume collecting hood, a draught fan and a smoke exhaust pipe, the draught fan comprises a volute, a motor and a centrifugal wind wheel, a top plate of the exhaust fume collecting hood comprises a horizontal plate part and an inclined plate part, and the inclined plate part is provided with a smoke exhaust hole; the smoke exhaust pipe comprises an inclined pipe part and a straight exhaust pipe part, the axis of the straight exhaust pipe part is perpendicular to the horizontal plane, and the intersection of the inclined pipe part and the straight exhaust pipe part is chamfered; a front volute plate of the volute is attached and fixed to the inclined plate part, and a flow guide opening in the front volute plate is in butt joint with the smoke exhaust hole and communicates with the smoke exhaust hole; and the inclined pipe part is fixed with an air outlet of the fan. After the smoke enters the smoke collecting hood, the fan exhausts the smoke, so that the impact between the smoke and the top of the smoke collecting hood is reduced, and the noise is reduced; the smoke exhaust pipe is formed by matching the inclined pipe part and the straight pipe part, the smoke resistance is small, and smoke exhaust is smooth.

The utility model relates to the technical field of cooling fans, in particular to a cooling fan. Comprising a shell, a stator, a magnetic ring, an impeller and fan blades, fan blades are fixedly connected to the interior of the shell, a shaft sleeve is fixedly connected to the fan blades, a stator is connected to the other end of the shaft sleeve, a magnetic ring is connected to the periphery of the stator, and an impeller is fixedly connected to the periphery of the magnetic ring; the impeller is an air inlet end, the fan blades are air outlet ends, and arc concave notches are formed in the ends, close to the shell, of the fan blades. Compared with the prior art, the air duct is optimized, the arc concave notches are formed in the arc-direction ends of the blades, airflow can pass through the arc concave notches conveniently, turbulent flow is effectively improved, air exhausting of the air duct is smoother, noise can be effectively lowered, the using effect of the cooling fan is improved, and the cooling fan is convenient to use. And the air outlet duct is smooth, so that the air outlet effect can be improved.

The application discloses a kind of electric pile module structures, it is related to fuel cell technical field;The electric pile module structure includes shell and the electric pile core being arranged in the shell inside, wherein the shell includes cover body and the top plate and bottom plate being respectively arranged in the top and bottom of the cover body;The cover body is equipped with air inlet and exhaust hole;The inside of the cover body is sequentially equipped with shunt structure and confluence structure along the direction of airflow flow;Wherein, the shunt structure is used to shunt the air that flows into by the air inlet into at least two airflow and make it flow to the different areas of the electric pile core respectively;The confluence structure is used to confluence and discharge through the exhaust hole after the tail gas of the electric pile core reaction.This application provides technical scheme to ensure that air can be evenly distributed, to ensure the overall performance and long-term operation stability of electric pile.

The utility model discloses a spring air hole sleeve and tire mould belong to the technical field of exhaust device for tire mould, including bush, sleeve core, spring, sleeve core includes core cap, core stem, core tail, core cap includes the body, the body axial one end is solidly connected with core stem, the body axial other end is radially outward coaxial setting radial extension portion, and the radial outer edge of radial extension portion is bent and extends to form axial extension portion in the direction close to core stem, axial extension portion is connected with ring groove, and the air passage that can communicate to exhaust passage is formed between axial extension portion and ring groove, and the radial section of air passage is U shape structure, sleeve core moves in the bush along the axial movement process, and axial extension portion is always located in ring groove and moves along ring groove. In the utility model, the communication channel between mould cavity and exhaust passage forms the S shape structure of multiple bending, and the flow gap of the section of communication channel close to the inner cavity of mould is small, and the probability of rubber material entering exhaust passage is reduced.

This utility model discloses a battery casing and a lithium battery, belonging to the field of lithium battery technology. The casing includes an explosion-proof hole that penetrates one side plate of the casing. The side plate includes a first plane and a second plane arranged opposite to each other, with the second plane facing the battery cell. A reinforcing bracket is provided along the outer periphery of the explosion-proof hole on the second plane, protruding away from the second plane. The outline of the reinforcing bracket's orthographic projection on the second plane matches the outer periphery of the explosion-proof hole. The reinforcing bracket of this utility model improves the strength of the casing, preventing deformation of the casing under high internal pressure and ensuring stable opening of the explosion-proof valve. Moreover, the reinforcing bracket also supports the battery cell. When the battery cell expands or shifts, the reinforcing bracket blocks the cell, preventing blockage of the explosion-proof hole and ensuring smooth venting.

The invention relates to the technical field of environment-friendly recovery of plastic products, and particularly discloses a processing device and a processing method before environment-friendly recovery of plastic products. The processing device comprises a machine body, an uncapping conveying belt is arranged on the machine body, and a pressing plate is arranged above the position, close to an outlet of the uncapping conveying belt, of the machine body in a lifting mode; a cap removing sleeve is arranged at the end, at an outlet of the cap removing conveying belt, of the machine body, a cap removing strip is arranged in the cap removing sleeve, a winding wheel is further rotationally connected into the cap removing sleeve, and a limiting plug is arranged on the side, away from the cap removing conveying belt, of the cap removing strip of the cap removing sleeve. A hydraulic cylinder used for moving the cap removing sleeve is fixedly connected to the machine body, a motor is further fixedly connected to the machine body, a cap withdrawing assembly used for withdrawing the bottle caps from the cap removing sleeve is arranged in the cap removing sleeve, and a restoring element used for restoring the cap removing strip to the initial expansion state is further arranged in the cap removing sleeve. The machine body is provided with a lifting piece used for driving the pressing plate to ascend and descend. The device has the effect of reducing the labor cost when the bottle cap is separated from the bottle body.