18results about How to "Difficult to enter" patented technology

The application discloses a double-layer wind-locking large fan, and aims at solving the problem that when the welding quality cannot reach the technical requirement or the flange plate and the air inlet I or the annular bottom plate and the left side plate are not connected tightly, external airflow is easily led into the fan, thereby affecting the air pressure of the fan. The left side plate (4) outwardly connected with the sealing plate (8) on the surface of the support frame (9) is adopted, and the sealing plate (8), the support frame (9) bottom plate and the left side plate (4) are sleeved on the air inlet II (7) of the impeller (3).

The utility model relates to the technical field of drawing frames, and discloses an anti-blocking device for a drawing frame, the anti-blocking device comprises a U-shaped frame arranged at an inlet of the drawing frame, two rotating shafts are rotatably mounted in the U-shaped frame, the two rotating shafts are both fixedly sleeved with hair collecting roller sleeves, felt is detachably mounted and fixed on the two hair collecting roller sleeves, and the hair collecting roller sleeves are fixedly sleeved with the felt. A driving assembly is arranged on the front side of the U-shaped frame and used for controlling the two rotating shafts to rotate relatively, and two dust suction hoods with the bottoms being open are fixedly installed in the U-shaped frame. Compared with the prior art, the device has the following advantages and effects that the adhesion effect of the felt is matched with the negative pressure dust collection effect, a dual protection mechanism is formed, short fibers, fluff and other impurities on the surfaces of fiber strips can be comprehensively and efficiently cleaned away, the blocking phenomenon caused by accumulation of the impurities at an inlet of the drawing frame is avoided, the impurities cannot enter the drawing frame easily, and the service life of the drawing frame is prolonged. Therefore, smoothness of a fiber rod conveying channel at the inlet of the drawing frame is guaranteed, and stable and efficient operation of the drawing frame is guaranteed.

The utility model relates to the technical field of doors and windows, concretely is a kind of hidden ground rail sliding door and window, including outer frame, two sash are slidably arranged in the middle of outer frame, two reserved slots are provided in the bottom of outer frame, a group of ground rails are provided in each reserved slot, the bottom of sash is provided with support frame, and the bottom of support frame is embedded in reserved slot.The utility model provides a kind of hidden ground rail sliding door and window, by the ground rail provided, hidden installation is under ground or windowsill, simple and beautiful, the ground rail design of existing sliding door and window is often recessed or protruded under ground or windowsill, cause inconvenience or stumble risk when walking, and safety performance is not high, the utility model is hidden installation under ground or windowsill by ground rail, can guarantee that inside and outside ground or windowsill is flush, improve traffic safety performance, sliding seal strip is arranged between the gap reserved in the middle of ground rail, dust, sundries are not easy to enter guide rail inside, meanwhile, ground rail is reserved detachable decorative cover, and daily cleaning and maintenance are convenient.

The utility model relates to traditional chinese medicinal material processing coarse screen technical field discloses a kind of coarse screen equipment used in traditional chinese medicinal material processing process, including bottom frame and base, the top end of the bottom frame is fixedly connected with connecting frame, the top end of the connecting frame is clamped with dust frame, the top end of the dust frame is fixedly connected with feed inlet, the top end of the feed inlet is clamped with top cover. The coarse screen equipment used in traditional chinese medicinal material processing process is provided with connecting frame and other parts, the top end of dust frame is fixedly connected with feed inlet, the top end of feed inlet is clamped with top cover, the top end of top cover is fixedly connected with third handle, top cover is detachably connected in the top of feed inlet, third handle opens top cover, traditional chinese medicinal material can be placed in sieve frame through feed inlet, then top cover is covered, so that dust is not easy to enter inside during screening, solve the problem that there is no shielding structure in top during screening, dust, impurities in air easily enter inside.

The utility model relates to a ventilation equipment field provides a kind of air duct assembly, air conditioning system and vehicle.Wind channel component includes air supply device, air supply device includes wind box, and wind box is opened with air inlet and air outlet, air inlet is provided with filter piece, and the position corresponding with air inlet in wind box is provided with air guide piece;Distribution box, fluid communication is in air outlet, and distribution box is provided with valve group, and distribution box includes first air duct, second air duct and third air duct, first air duct is fluid communication with the driver's room of vehicle, second air duct is fluid communication with the traction motor cabin of vehicle, third air duct is fluid communication with the passenger room of vehicle, and valve group is used to distribute the air intake of first air duct, second air duct and third air duct.The air duct assembly can make the airflow output of each air duct stable, avoid the air supply fluctuation caused by external wind pressure variation, ensure the comfort of driver's room, passenger room and the heat dissipation effect of traction motor cabin, improve the reliability of vehicle operation, simplify the structure of air duct assembly.

The utility model provides a kind of prepayment electric energy meter with replaceable digital keyboard, it is related to electric energy meter field, prepayment electric energy meter with replaceable digital keyboard includes electric energy meter main body, installation groove is opened in electric energy meter main body, keyboard assembly is installed in installation groove, electric energy meter main body one end is hinged with cover plate one end, cover plate other end is detachably connected with the other end of electric energy meter main body, cover plate is used to limit keyboard assembly, prepayment electric energy meter with replaceable digital keyboard provided by the utility model is detachably connected by keyboard assembly and electric energy meter main body, user can conveniently and quickly replace keyboard by oneself, without replacing entire electric energy meter, greatly reduce maintenance cost and time cost, after keyboard assembly installation is completed, cover plate can be turned over, cover plate is pressed on keyboard assembly, realize the limitation of keyboard assembly.

The utility model discloses fishlight complementary cultivation tail water treatment equipment relates to tail water treatment technical field, including the aquaculture pond and the drain pipe, the outer surface fixed mounting of drain pipe has fixed cylinder no.

This application relates to the field of trifluoromethylbenzenesulfonyl preparation processes, and more particularly to an explosion-proof trifluoromethylbenzenesulfonyl synthesis apparatus, comprising a reaction vessel with an inlet and an outlet, a stirring shaft rotatably mounted inside the reaction vessel, and a discharge pipe connected to a reaction chamber at the end of the discharge pipe furthest from the reaction vessel. The reaction chamber contains a substance for treating trifluoromethyldiazomethane. This application has the effect of reducing the possibility of explosion during the preparation process.

This invention relates to the field of air conditioner technology, specifically to a sliding door assembly and an air conditioner. The sliding door assembly includes a sliding door, a blocking member, and a drive box. The blocking member is connected to the sliding door, and the drive box is fixed to the inner panel of the air conditioner. A guide rail is provided below the drive box, and the guide rail's direction is consistent with the sliding direction of the sliding door. The blocking member cooperates with the guide rail, and can block the gap between the inner panel and the front panel of the air conditioner after the sliding door is opened. The air conditioner includes the above-described sliding door assembly. The sliding door assembly and air conditioner provided by this invention prevent dust from easily entering the air conditioner's interior, resulting in better aesthetics. Furthermore, it facilitates a reduction in the floor space and volume of the air conditioner, saving on material costs.

This utility model provides an RGBW contour light with an auxiliary heat dissipation structure, relating to the field of RGBW contour lights. The utility model includes an RGBW contour light frame, with a lampshade on one side. Several LED beads are arranged on the inner wall of the lampshade on one side of the RGBW contour light frame. By incorporating a heat dissipation device, when the RGBW contour light is in use, the semiconductor cooling chip is first connected to the power supply to cool the inner wall of the air box. Then, an air pump is activated to draw air into the air box, allowing it to exchange heat with the inner wall of the air box and lower its temperature. The air then enters the nozzle frame through a guide pipe and is blown into the interior of the RGBW contour light frame and lampshade, where it exchanges heat with the hot air inside the lampshade. The hot air is then discharged autonomously from the heat dissipation holes, thus cooling the LED beads during use, preventing overheating and aging damage, and improving the lifespan of the LED beads.

This application relates to a camera module and electronic device. The camera module includes a lens, an image acquisition module, an optical transmission element, and a stray light elimination structure. The optical transmission element is configured such that light captured by the lens can enter the optical transmission element from the light-transmitting surface and be reflected sequentially through a first reflective surface, a light-transmitting surface, a second reflective surface, a light-transmitting surface, and a third reflective surface to the image acquisition module. The stray light elimination structure is used to eliminate stray light in the light reflected by at least one of the first reflective surface, the second reflective surface, and the light-transmitting surface. The camera module and electronic device of this application improve the telephoto shooting effect by using multiple reflections of light through the optical transmission element and reduce the module height to facilitate module miniaturization. Moreover, by using the stray light elimination structure to eliminate stray light in the light reflected by at least one of the first reflective surface, the second reflective surface, and the light-transmitting surface, stray light is less likely to enter the image acquisition module, thereby reducing glare.

This invention discloses a handheld high-speed fan, comprising a first column and a second column. A ducted motor is housed inside the first column, with fan blades at the bottom of the ducted motor. A battery is housed inside the second column, and the ducted motor is electrically connected to the battery. An air inlet is located at the connection point of the first and second columns, and an air outlet is located at the first end of the first column furthest from the second column. A guide plate is provided at the air outlet, with the upper part serving as a converging section and the lower part as an air collecting section. The guide plate and the air outlet form an air outlet channel. In this invention, the narrowing design of the air outlet and the guide plate results in a narrowing of the internal airflow channel from bottom to top, accelerating the airflow. The airflow then flows along the guide surface of the guide plate, and finally, the symmetrical airflows on both sides converge at the center of the convex surface, thus being ejected vertically. A high-pressure zone is formed at the center of the guide plate, increasing the wind pressure and creating a vortex jet effect. This reduces airflow loss and ensures effective airflow and speed.

The present application provides a kind of impact tool.Hammer drill (1) has motor, tool holder (23), drive mechanism (30), the 1st intermediate shaft (80) and drive mechanism housing area (T) in shell (2), wherein, the tool holder is cylindrical and its top end can install tool head;The drive mechanism can impact tool head;The 1st intermediate shaft is arranged in drive mechanism, and it is rotated by the rotation of the output shaft of motor;Drive mechanism housing area is in sealed state in shell with drive mechanism is housed in drive mechanism housing area.Form air release path (77) in the inside of the 1st intermediate shaft, the air release path is used to release the air in drive mechanism housing area to the outside of drive mechanism housing area, and the through hole (80a) that becomes the entrance of air release path is formed on the outer circumferential surface of the 1st intermediate shaft.Accordingly, the pressure that rises in drive mechanism housing area due to the heat generation of drive mechanism can be effectively released.

The utility model relates to outdoor water heater technical field, specifically disclose a water storage tank with filter screen and outdoor water heater. Among them, the water storage tank with filter screen includes jar body, filter screen, filter cover and baffle, the jar body has the accommodation cavity, the filter screen sets up in the accommodation cavity and will the accommodation cavity divide into the upper cavity and the lower cavity below the upper cavity, the lower cavity's bottom wall is provided with the water outlet, the filter cover is located in the lower cavity and covers the water outlet, the baffle is fixed in the lower cavity and shows the vertical setting, the baffle is located in the inside of filter cover and is located the water outlet's directly above, the mesh aperture of filter screen is greater than the mesh aperture of filter cover. The utility model can avoid the water pump idling because of big bubble, guarantees normal water use of user.

This utility model discloses a grain storage container with a nitrogen replacement system. The container includes a nitrogen filling pipe assembly located on at least one inner wall along its length. The assembly comprises multiple horizontally parallel main gas pipes, one end of which is connected to a vertically arranged inlet pipe. Each inlet pipe has an inlet extending outwards from the container for connecting to an external nitrogen filling device to introduce nitrogen into the main gas pipes. Each main gas pipe has multiple downwardly inclined filling pipes connected along its length for insertion into the grain pile for uniform nitrogen filling. This utility model has the advantages of simple and compact structure, ease of manufacturing, uniform and rapid nitrogen filling, convenient and simple maintenance, and good grain preservation and storage effect.

The utility model provides a kind of integrated cooker's control panel mounting structure and integrated cooker, the control panel mounting structure includes control panel, installation box and wind box cover plate;The control panel is located in the installation box;The side surface of the installation box is equipped with heat dissipation hole, the top periphery of the heat dissipation hole is equipped with the outwardly extending baffle edge;The side surface of the wind box cover plate is equipped with the air inlet hole corresponding with the heat dissipation hole, the baffle edge is inserted into the air inlet hole and is in abutment with the top of the air inlet hole.The utility model provides integrated cooker's control panel mounting structure and integrated cooker, its structure design is reasonable, and heat dissipation effect is excellent, and oil dirt can be prevented into control panel.

This utility model discloses a charging pile assembly with a dual waterproof structure, relating to the field of charging pile technology. It includes a charging pile mechanism, comprising a charging pile body with a socket installed on it, a connecting wire connected to the charging pile body, and a charging gun connected to one end of the connecting wire; and a first waterproof mechanism installed on the surface of the charging gun, including a transmission component fixedly connected to the surface of the charging gun. This utility model provides waterproofing and dustproofing for the charging gun before it is inserted into the charging pile or vehicle charging port, protecting the charging gun and preventing dust and water from easily entering the charging gun head, thus reducing the possibility of poor contact during subsequent use. The second waterproof mechanism provides waterproofing and dustproofing for the socket after the charging gun is unplugged, reducing the easy entry of dust, rainwater, and other debris, thus minimizing the possibility of them indirectly entering the charging gun and ensuring the electrical performance of the charging gun during charging.

This invention relates to the field of gas measurement technology, specifically to a coal mine gas drainage pipeline and its gas monitoring device. The gas monitoring device for the coal mine gas drainage pipeline includes a main pipeline and a bypass pipeline connected to the main pipeline. The end of the main pipeline has a connection structure for connecting to the main pipeline of the coal mine gas drainage pipeline. A gas parameter monitoring instrument is installed on the bypass pipeline. The bypass pipeline has sections upstream and downstream of the gas parameter monitoring instrument located between the gas parameter monitoring instrument and the main pipeline. The gas parameter monitoring instrument has a sensor for contacting the fluid inside the bypass pipeline. Under negative pressure inside the pipeline, contaminants mixed with the gas mainly flow along the main pipeline, and most contaminants do not easily enter the bypass branch. The sensor can monitor the gas with relatively fewer contaminants in the bypass branch, reducing the damage to the sensor caused by contaminants inside the coal mine gas drainage pipeline and ensuring measurement accuracy.