445results about How to "Improve the fixing strength" patented technology

The utility model relates to the technical field of nonferrous metal production and processing, and discloses aluminum alloy degassing refining equipment which comprises a movable base, an adjusting assembly is arranged on the top of the movable base, a degassing assembly is arranged on the top of the movable base, and the adjusting assembly comprises a first supporting plate fixedly installed on the top of the movable base. An adjusting structure is arranged in the first supporting plate, the degassing assembly comprises a second supporting plate arranged at the top of the movable base, a degassing structure is arranged at the bottom of the second supporting plate, and the adjusting assembly further comprises a first hydraulic air cylinder fixedly installed at the top of the first supporting plate; the adjusting structure comprises a first hydraulic push rod fixedly installed at the top of the inner side of the first supporting plate, and one end of the first hydraulic push rod is fixedly provided with a first lifting plate, so that the purpose of adjusting the position of the device is achieved, the device is lifted according to the depth of the metal material pool, and the using flexibility of the device is improved; and sufficient degassing treatment of metal is facilitated, and the use experience of the device is optimized.

The utility model relates to the technical field of metal material processing, and discloses an aluminum-magnesium series alloy ingot smelting cooling device, which comprises a cooling tank, a heat exchanger, a heat exchanger and a heat exchanger, the smelting tank is arranged at the top of the cooling pool; the first cooling structure comprises a fixed water jacket, and the fixed water jacket is fixedly mounted on the outer wall of the smelting tank; the second cooling structure comprises six groups of stirring blades, and the stirring blades are arranged in the cooling tank; the water pump is fixedly mounted at the top of the cooling pond; the control panel is fixedly installed at the top of the cooling pond, the first cooling structure further comprises a first water conveying pipe and a second water conveying pipe which are fixedly installed at the two ends of the fixed water jacket correspondingly, the purpose of conducting rapid heat dissipation on the device is achieved, the cooling effect of cooling water is improved, the cooling rate of the smelting furnace is increased, and the using convenience of the device is improved; the device can conveniently collect high-temperature alloy liquid, and resource waste is reduced.

The utility model provides a high-strength plastic fan blade, which relates to the technical field of fan blade components and comprises a fixing mechanism, the fixing mechanism comprises a connecting rod, a protection mechanism is arranged on the surface of one end of the connecting rod, a base is arranged on the surface of the connecting rod, two limiting rings are connected to the surface of the base, and fan blades are arranged between the two limiting rings. According to the utility model, through the installed fixing mechanism, after the screw thread is fixed, the base and the fixing shell also form limiting, the first gasket can enable one end of the fixing piece with the rotating handle to be more tightly attached to the fixing piece, sliding is avoided, movement of the fixing piece caused by shaking is avoided, and limiting can be formed by rotating the fixing piece and performing screw thread fixing with the threaded pipe. Once the screw thread is fixed, the base and the fixed shell are limited, so that a stable fixed state is ensured. The multiple limiting fixing mode can effectively prevent the fan blades from shaking and moving, and the fixing reliability is improved.

The utility model provides a battery, which is applied to the technical field of batteries, and in particular relates to a battery, which comprises a battery cell, a shell and a tab positioned on the battery cell, the shell wraps the battery cell to form a battery body; the shell comprises a protective layer, a metal layer and an insulating layer which are stacked in sequence; the shell comprises a first shell layer and a second shell layer, and the first shell layer and the second shell layer are attached to form a side sealing edge located on at least one side of the battery body and a top sealing edge located on one side of the tab; the side sealing edge comprises a first edge part which is folded towards the direction close to the battery body, the protective layer on one side, close to the battery body, of the first edge part forms a first blank area which exposes the metal layer, and an adhesive layer is arranged between the first blank area and the battery body. One side, close to the battery body, of the first edge part is provided with the first blank area, and a protective layer is not arranged, so that a bonded metal layer is directly exposed, and the fixing strength of the side sealing edge and the battery body can be effectively improved; the protection layer is removed to reduce the width of the battery body and improve the energy density of the battery.

The invention discloses a convenient take-up and pay-off device and a using method thereof.The convenient take-up and pay-off device comprises a fixing frame and a wire winding roller, the wire winding roller is arranged on the fixing frame, a connecting wire is wound around the wire winding roller, a fixing mechanism is arranged on the fixing frame, and the connecting wire is wound around the fixing mechanism. The device comprises a supporting frame, adjusting seats, movable rods, a fixing plate, a fixing seat and first springs, the supporting frame is of a rectangular frame structure, the two adjusting seats are symmetrically arranged on the supporting frame, the movable rods are arranged above the adjusting seats, the fixing plate is arranged above the movable rods, the fixing seats are fixedly installed at the upper end of the fixing plate, and the first springs are arranged on the fixing plate. The device moves up and down through the movable rod, so that a wire head of a grounding wire is fixed and protected, the safety problem caused by abrasion of an insulating layer or exposure of a wire core is avoided, and the device is applied to various electric power scenes.

The utility model discloses a column type ceramic sealing type high-voltage direct current contactor with an auxiliary contact, which comprises a shell, the top of the shell is buckled with a cover plate, and the cover plate is provided with a positioning hole and a glue injection port; the cover plate is provided with a check ring along the circumferential edge, and a plurality of positioning ribs are evenly distributed on the check ring and embedded into the clamping grooves. A contact system is arranged in an inner cavity of the shell, and a gap between the contact system and the shell is filled with epoxy glue; the contact system comprises a sleeve, a ceramic cover is buckled and welded to the top of the sleeve, static contacts are symmetrically arranged on the ceramic cover and penetrate through a pair of through holes symmetrically formed in the top of an arc extinguishing cover assembly arranged below the ceramic cover, and the arc extinguishing cover assembly covers a moving iron assembly arranged below the arc extinguishing cover assembly. According to the utility model, through the structural design of the cover plate and the shell, the defect of glue overflow during glue pouring of the whole machine is overcome, and meanwhile, the potting glue has the effects of good heat dissipation effect and high fixing strength; and ceramic packaging is adopted, so that the product has the capability of sealing a small molecule arc extinguishing medium.

The invention belongs to the technical field of vehicles, and discloses a rear seat fixing point enhanced structure and a vehicle, the rear seat fixing point enhanced structure comprises a rear seat front cross beam assembly, a rear floor middle cross beam and a rear seat lower cross beam assembly which are arranged in parallel, and the rear seat front cross beam assembly and the rear floor middle cross beam are connected with each other through a middle seat mounting bracket; the rear floor middle cross beam and the rear row seat lower cross beam assembly are connected with each other through the rear floor longitudinal beam welding assembly, the middle row seat mounting bracket and the rear seat front cross beam assembly are arranged perpendicular to each other, and the rear floor longitudinal beam welding assembly and the rear seat front cross beam assembly are arranged perpendicular to each other. Mounting points of the rear row seats are firmer, the cross beams and the longitudinal beams which are connected with each other enhance the overall strength and rigidity of a vehicle body, the buffering and energy dispersing capacity of the vehicle in the front face, the side face and rear-end collision of the vehicle is greatly enhanced, and the safety of the whole vehicle is improved.

The utility model discloses an electric power engineering auxiliary installation support, which belongs to the technical field of electric power engineering, and comprises a vertical supporting column, a plurality of transverse supporting columns are uniformly distributed on one side of the vertical supporting column, and the outer sides of the transverse supporting columns are connected with rectangular sliding pipes in a sliding manner; a longitudinal supporting box is arranged at the top of the rectangular sliding pipe, a first U-shaped supporting block is fixed to the top of the longitudinal supporting box, second U-shaped supporting blocks are arranged at the two ends of the first U-shaped supporting block, and a moving mechanism used for moving the second U-shaped supporting blocks is arranged in the longitudinal supporting box; through a series of designs, energy generated when the cable vibrates can be absorbed, the influence on the cable is reduced, the cable is effectively prevented from being damaged, the distance between the two second U-shaped supporting blocks can be adjusted, then the cable supporting efficiency can be improved, cables with different diameters can be clamped, and the cable fixing strength can be improved.

The invention relates to the technical field of metal part machining, in particular to a numerical control gear milling machine for metal part machining, which comprises a gear milling machine body, a bearing mounting plate is fixedly arranged at one end of the gear milling machine body, an electric telescopic rod is fixedly mounted on the bearing mounting plate, and matched track grooves are symmetrically formed in the upper side and the lower side of the gear milling machine body. A closed protective door is fixedly mounted on the electric telescopic rod, a connecting carrier block is fixedly arranged on the closed protective door, the connecting carrier block is fixedly connected with the electric telescopic rod, and matched track strips are symmetrically and fixedly arranged on the upper side and the lower side of the closed protective door. Comprising the following steps that firstly, a workpiece is placed; secondly, the workpiece is moved; thirdly, the workpiece is fixed; and fourthly, gear milling is conducted on the workpiece.

The invention relates to the technical field of welding fixing devices, and discloses an elevator sheet metal part welding fixing device and a fixing method. Comprising a supporting frame and further comprises two mechanical arm assemblies which are arranged in a mirror image mode and connected with the supporting frame, the two mechanical arm assemblies are each in transmission connection with two rotating shafts, the two rotating shafts are each provided with a fixing part, the two hanging and clamping parts are installed in the middle of the supporting frame, and each fixing part comprises an inner frame and side frames arranged on the two sides of the inner frame; the shear type telescopic modules are installed between the inner frame and the side frames, and the transmission module is installed on the inner frame and drives the two shear type telescopic modules to stretch out and draw back synchronously. When the fixing device is used, on one hand, relative multi-angle, multi-space and multi-position butt welding of two sheet metal parts can be achieved, on the other hand, displacement or transposition welding can be achieved in the welding process, and the welding device further has multiple welding modes during welding.

The invention discloses a wind turbine blade repair wall-climbing robot and a repair method thereof, belonging to the technical field of robots. The invention comprises a wall-climbing device and a turntable-type repair device on a main body. The wall-climbing device comprises an adsorption duct fixed on the middle part of the main body and a driving mechanism fixed on the side of the main body, and a reinforcement mechanism is arranged on the main body; the turntable-type repair device comprises a mechanical arm and a repair turntable arranged on the mechanical arm, and a grinding mechanism, a liner filling mechanism, a wet laying mechanism, a vacuum glue injection mechanism and a painting mechanism are arranged in sequence on the circumferential side of the repair turntable, and an image collector is arranged on the end face of the repair turntable. At the same time, a repair method based on the above-mentioned wind turbine blade repair wall-climbing robot is disclosed. The above-mentioned wind turbine blade repair wall-climbing robot and the repair method thereof are adopted to realize the repair of deep damage, and at the same time, the energy consumption is low and the fixation is reliable.

The present invention discloses a humidifying, water spraying, oil spraying and anti-collision structure of a flax wet spinning spinning machine, comprising two slide rails symmetrically arranged front and back, a sliding mechanism arranged between the two slide rails, a crossbeam fixed on the sliding mechanism, hinged frames fixed at both ends of the crossbeam, a vertical rod hinged on each hinged frame, a trigger block fixed at the upper end of the vertical rod, and micro switches fixed on the crossbeams on both sides of the trigger block; first protective plates are fixed on the left and right sides of the lower part of each vertical rod, a humidifying nozzle is installed between the two first protective plates on each vertical rod, second protective plates are fixed on the left and right sides of the lower end of each vertical rod, a water spray nozzle and an oil spray nozzle are installed between the two second protective plates on each vertical rod; the present invention can realize automatic humidification of the leather ring roller, and can bring convenience to the cleaning of the yarn guide, and can also bring convenience to the lubrication of the steel collar, in addition, the vertical rod inside it has the function of anti-collision protection.

The utility model discloses a protection type bus duct, and relates to the bus duct technology field, the protection type bus duct comprises a connecting mechanism, a heat dissipation mechanism is arranged in the connecting mechanism, the connecting mechanism is fixedly connected with a positioning mechanism, the heat dissipation mechanism comprises a refrigerator and an electric rotating rod, the output end of the refrigerator is fixedly connected with a condensation pipe, and the electric rotating rod is fixedly connected with the condenser pipe. And a circulating pump is arranged on the condensation pipe. According to the utility model, the refrigerator and the circulating pump are started, the refrigerator cools the condensate, and the circulating pump operates to drive the condensate in the condenser pipe to flow back and forth, so that the temperature of the condensate in the condenser pipe is ensured to be the same, the cooling is more balanced, cold air enters the U-shaped groove from the first vent hole, the effect of cooling the bus is achieved, and the service life of the bus is prolonged. The electric rotating rod is started to drive the limiting circular plate and the fan blades to rotate at the same time, so that cold air generated by the condensate is blown to the bus through the first ventilation holes, and then the heat dissipation strength is improved.

The utility model discloses an ECMO pipeline fixing and pressure reducing device which comprises a supporting cover and a cover plate, an upper pipeline groove and a lower pipeline groove are formed between the supporting cover and the cover plate respectively, and the upper pipeline groove and the lower pipeline groove are oppositely arranged to define a circular hole. The problems that in the prior art, no medical instrument special for fixing the ECMO pipeline exists, the ECMO pipeline is not protected in place, the ECMO pipeline is prone to being extruded and deformed, serious injuries are caused to a patient, and even life safety is affected are solved. The ECMO pipeline fixing and pressure reducing device is reasonable in overall structural design, the position, stretching out of a human body, of an ECMO pipeline can be fixed, external fixing acting force and external interference object supporting can be achieved in the fixing process, and the ECMO pipeline is prevented from being extruded and deformed. The fixing strength of the ECMO pipeline can be improved, the extension direction of the ECMO pipeline is guided, conduction of an ECMO system and a patient is guaranteed, and the treatment effect is improved.

The utility model provides a battery end cover assembly and a battery, and the battery end cover assembly comprises a cover plate which is internally provided with a first electric connection through hole; the first side face of the cover plate is provided with an installation groove, and the installation groove surrounds the periphery of the first electric connection through hole and communicates with the first electric connection through hole. The pole column is arranged in the mounting groove and covers the first electric connection through hole, and an injection molding gap is formed between the peripheral surface of the pole column and the side wall of the mounting groove; the reinforcing columns are arranged on the first side face of the cover plate and surround the periphery of the mounting groove; the injection molding part wraps the peripheral surface of the pole and the reinforcing column and fills the injection molding gap; and the sealing element is arranged between the groove bottom of the mounting groove and the pole. According to the battery end cover assembly provided by the utility model, the fixing strength of the injection molding part is high, and the overall production cost is relatively low.

The utility model discloses a pair of glasses, comprising a glasses frame which is arranged to provide a basic frame for installation; the lenses are arranged on the glasses frame; the glasses legs are arranged to be hinged to the glasses frame and used for being worn on ears, and each glasses leg comprises a straight line section and a bent section; the rotating structure is arranged between the two opposite ends of the linear section and the bent section and allows the bent section to rotate back and forth in the bending direction of the rotating structure; the locking structure is arranged to be matched with the rotating structure and used for achieving real-time positioning of the bent section in the rotating process. The pair of glasses has the following advantages and effects that the wearing firmness can be improved, so that the risk that the glasses fall off accidentally is reduced, and the wearing comfort is improved.

The utility model discloses a clamping device for connector plugging force detection, and belongs to the technical field of connector detection. A clamping device for connector plugging force detection comprises a fixing base, a connecting base detachably connected with a plugging force tester is fixedly arranged at the top of the fixing base, the clamping device further comprises at least one set of clamping plates arranged on the fixing base in a sliding mode, clamping grooves are formed in the clamping plates, and clamping pads are fixedly arranged in the clamping grooves. A groove is formed in the clamping end face of the clamping pad, and a driving part used for driving the clamping plate to slide is arranged on the fixing base. The clamping pad is fixedly arranged on the side wall of the clamping groove, the groove is formed in the clamping pad, and during clamping, negative pressure is generated in the spherical hole, so that the opening part of the cylindrical hole is adsorbed on the end face of the connector sample piece, the fixing strength of the connector sample piece can be increased, and the connector sample piece is prevented from being damaged during plugging and unplugging. A connector sample piece slides relative to a clamping plate, so that test data is inaccurate, and the test quality is influenced.

The utility model discloses a heat dissipation frame of an air energy heat pump, which relates to the technical field of air energy heat pumps and comprises an air cooling mechanism, the left side and the right side of the air cooling mechanism are fixedly connected with heat absorption mechanisms, the outer sides of the heat absorption mechanisms are fixedly connected with mounting mechanisms, and the air cooling mechanism comprises an X-shaped support frame. The back of the X-shaped supporting frame is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a connecting rod. The connecting rod is driven by the driving motor to rotate, so that the fan blades are driven to rotate, the cooling effect is enhanced, the dust screen can block dust and prevent the dust from covering the surface of the air heat energy pump, the purpose of enhancing the heat dissipation strength of equipment is achieved, the friction force between a rubber pad and the air heat energy pump is increased, and the service life of the equipment is prolonged. And meanwhile, the two sides of the air energy heat pump can be protected, and the purpose of prolonging the service life of the air energy heat pump is achieved.

The utility model discloses an assembly type kitchen cabinet which comprises a first cabinet body and a second cabinet body. The front surface of the first cabinet body and the front surface of the second cabinet body are each symmetrically provided with two L-shaped grooves, when the two sides of the first cabinet body and the two sides of the second cabinet body are attached to each other, every two adjacent L-shaped grooves are in a U shape, U-shaped insertion plates are inserted into the two adjacent L-shaped grooves, and through holes are formed in the inner walls of the two sides of the first cabinet body and the inner walls of the two sides of the second cabinet body; when the first cabinet body and the second cabinet body are assembled, the two sides of the first cabinet body and the second cabinet body are attached to each other, so that the two adjacent L-shaped grooves in the front surface are in a U shape, a U-shaped inserting plate is conveniently inserted, the position is preliminarily fixed, the two cabinet bodies are prevented from deviating, openings of the L-shaped grooves are closed, the front surface is kept complete, and opening and closing of the cabinet doors are not affected; therefore, separation is prevented, and the fixing strength among a plurality of cabinet bodies is improved.

The utility model discloses an external wall external corner arc corner position customized plate assembly structure which comprises arc corner extruded plates and an external wall heat preservation nail assembly, a plurality of arc corner extruded plates are sequentially overlapped at the external wall external corner arc corner position in a staggered joint mode in the vertical direction, a plurality of reserved holes are formed in the arc corner extruded plates, and the reserved holes are formed in the external wall external corner arc corner position customized plate assembly. An outer wall heat preservation nail assembly is arranged; wherein the arc angle extruded sheet comprises a long plate surface and a short plate surface which are integrally connected, the inner sides of the ends, connected with each other, of the long plate surface and the short plate surface are spliced to form a right angle, and the outer sides of the ends, connected with each other, of the long plate surface and the short plate surface are spliced to form an arc angle; the outer wall heat preservation nail assembly comprises an adjustable nail barrel and a steel heat preservation nail, one end of the adjustable nail barrel is arranged in the outer wall body, the other end of the adjustable nail barrel is arranged in a preformed hole of the arc angle extruded sheet, and the steel heat preservation nail is inserted into the adjustable nail barrel. The arc base layer can be guaranteed in the base layer construction process, a reasonable foundation structure is provided for follow-up plastering construction, and follow-up construction is facilitated.

This invention relates to the field of screw fastening equipment and discloses a screw fastening robot based on AI visual recognition and tightening control. The robot includes a base, a rotating robot body rotatably connected to the top of the base, a camera-equipped robot head mounted on the top of the rotating robot body, rotating arms symmetrically mounted on both sides of the rotating robot body, and screw fastening assemblies mounted at the ends of the rotating arms. The rotating arms are used to adjust the working position and direction of the screw fastening assemblies. The screw fastening assembly includes a connecting cylinder fixedly mounted to one end of the rotating arm, a rotating block rotatably mounted inside the connecting cylinder, a central square groove coaxially formed inside the rotating block, and a bottom groove extending through to the bottom of the rotating block. This invention, by using different shaped embedded blocks at the bottom of the four screw fastening units' inserts, facilitates compatibility with screws of different head slot types, thus simplifying screw fastening.

The utility model discloses a steel column embedded section positioning device, and relates to the technical field of steel column section positioning, the steel column embedded section positioning device comprises a connecting mechanism, the connecting mechanism is rotatably connected with an adjusting mechanism, the adjusting mechanism is internally provided with a fixing mechanism, the fixing mechanism comprises an L-shaped fixing rod, a positioning rod is inserted in the L-shaped fixing rod in a penetrating manner, and the L-shaped fixing rod is fixedly connected with the L-shaped fixing rod. The tail end of the positioning rod is fixedly connected with a bolt, and the positioning rod is fixedly connected with a positioning ring. The L-shaped fixing rod is inserted into the first fixing groove and the second fixing groove, the position of the positioning groove is preliminarily fixed, then the positioning rod and the bolt are inserted into the inserting hole, the positioning rod is rotated to screw the bolt into the base, and then the adjusting mechanism can be secondarily fixed; and an inserting rod is driven to enter a positioning ring and a connecting rod, so that the position of the positioning rod is fixed, and the fixing strength of the embedded section is improved.

The utility model discloses a wavy impeller structure, and relates to the technical field of fan impellers. The wave-shaped impeller structure comprises a main body; the rotating shaft is fixedly arranged in the main body and drives the main body to rotate; the clamping seat is fixedly arranged on the main body, and the rotating shaft penetrates through the interior of the clamping seat; the clamping strips are fixedly arranged in the clamping seat, and the surfaces of the clamping strips are attached to the surface of the rotating shaft; the fixing grooves are formed in the surface of the rotating shaft; the adjusting sleeve is arranged on the clamping base in a threaded mode. According to the wave-shaped impeller structure, by rotating the adjusting sleeve, the adjusting sleeve moves on the clamping base, in the moving process of the adjusting sleeve, the extrusion inclined face exerts acting force on the clamping strip, the clamping strip is bent towards the interior of the fixing groove, fixing between the main body and the rotating shaft is achieved, the structure is simple, operation is convenient, the impeller dismounting efficiency is improved, and the practicability is high. And the coupler cannot be disassembled, so that the service life of the coupler is prolonged.

The utility model discloses a kind of seamless gas cylinder closing-in fixing device, it is related to seamless gas cylinder processing technical field, including: L-shaped base, the L-shaped base includes horizontal plate and vertical plate being set on horizontal plate;Motor, the motor is set on vertical plate;A pair of fixed plate, a pair of the fixed plate is set on the upper surface of horizontal plate;Rotary drum, the rotary drum rotation is set on a pair of fixed plate, the motor is used to drive rotary drum rotation;The utility model is fixed to mobile ring by multiple fixed bolts, mobile ring is fixed to multiple fixed rods, two groups of fixed rods are fixed to seamless gas cylinder, the position of fixed bolt is fixed again by shaft locking ware, the fixing strength of seamless gas cylinder is high, seamless gas cylinder cannot displace when processing, mobile ring can make fixed rod one end adhere on the outer wall of seamless gas cylinder when fixing, it is suitable for the fixing of gas cylinder of different diameters.

The invention discloses a novel train track fixing device and method for a train wheel ferry, the fixing device comprises a web plate, a cushion block and clamps, the web plate is used for being fixed on a ship deck, the cushion block is placed on the upper surface of the web plate and used for laying a train track, and the clamps are symmetrically arranged on the two sides of the train track; the clamp comprises an upper clamp body, a lower clamp body and a side wall connecting the upper clamp body with the lower clamp body, the lower clamp body is installed on the web, and the upper clamp body is used for pressing the upper surface of the train track. The train track is fixed through the clamps, the upper clamp tightly presses the train track, the lower clamp is connected with the web, the web is fixed to the deck, and the fixing strength and stability of the track-deck connecting structure are improved.

The utility model discloses a bag breaking device riveted with a cutter cone, and relates to the technical field of feeding machinery. Comprising a machine body used for feeding, a bag breaking assembly used for breaking bags is arranged in a feeding port in the top face of the machine body, and a discharging port in the bottom face of the machine body is fixedly connected and communicated with a raw material bin used for storing materials; the bag breaking assembly comprises a cutter cone, the end, extending into the machine body, of the cutter cone is detachably connected with a support through a plurality of rivets, the support is arranged in the machine body, the vertex of the cutter cone is higher than the top face of the machine body, and the central axis of the cutter cone and the central axis of the machine body are located on the same central axis. The cutter awl is installed on the support through the rivet, the cutter awl which is seriously abraded can be replaced at any time through a hot melting method, the cutter awl and the support are riveted, the number of parts is small, replacement is convenient, and installation accuracy and fixing strength are high.

The utility model discloses an electromagnetic valve with adjustable armature lift, and particularly relates to the technical field of electromagnetic valves, which comprises a magnetic cup, a coil is arranged in the middle of the magnetic cup, an iron core is arranged in the middle of the coil, a movable groove is arranged at the bottom end of the iron core, an armature is arranged in the middle of the movable groove, and the armature is arranged in the movable groove. A containing groove is formed in the position, corresponding to an inner cavity of the movable groove, of the top of the armature, and a spring is arranged in the middle of the containing groove. Firstly, the nozzle is in threaded connection with the thread groove in the bottom end of the coil, the initial position of the armature can be adjusted according to needs, the lift height of the armature is adjusted, adjustment and use are convenient, the movable block is extruded by rotating the fixing bolt, and therefore the fastening pressing rod is controlled to extrude the wall body of the thread groove; the fixing strength after the position of the nozzle is adjusted can be improved, the situation that the nozzle rotates after long-term use, consequently, the height of the armature lift is changed, the use effect is affected is avoided, and the service life is prolonged.

The utility model discloses a sounding unit, which comprises a frame, a magnetic circuit assembly, a diaphragm assembly and a front cover, the magnetic circuit assembly is connected with the frame, the magnetic circuit assembly comprises a magnetic cover and a central magnetic structure arranged on the magnetic cover, the central magnetic structure is provided with a through hole, the magnetic cover is provided with an upward convex structure, and the upward convex structure penetrates into the through hole; the vibrating diaphragm assembly comprises an inner fixing part, a deformation part and an outer fixing part which are sequentially connected from inside to outside, the outer fixing part is connected with the basin frame, the inner fixing part is provided with an open window, the through hole is communicated with the open window, and the inner fixing part is fixedly connected with the central magnetic structure; the outer edge of the front cover is connected with the vibrating diaphragm assembly and / or the basin frame, and the top end of the upward protruding structure is connected with the front cover. The sound production unit is novel in structure, the front cover is directly connected with the magnetic cover, the fixing strength of the front cover is effectively improved, the risk that the front cover falls off when the sound production unit falls off is reduced, and the structural stability of the sound production unit is improved.

The utility model provides a flat wire motor stator busbar fixing structure, a busbar and a motor, the flat wire motor stator busbar fixing structure comprises a plurality of fixing members, the plurality of fixing members are arranged on a busbar main body, and the plurality of fixing members are sequentially arranged along the length direction of the busbar main body to fix the busbar; and the fixing piece is arranged on one side, facing the conductor, of the busbar main body, and the fixing piece at least comprises two fixing parts which are arranged at an interval and used for fixing the conductor. The beneficial effects of the utility model are that the strength of the busbar is optimized from the structure, the structural strength of the busbar is improved on the premise of not increasing working procedures, and the motor vibration test requirement is met; the arrangement of the plurality of fixing parts can ensure that a plurality of positions of the busbar and the conventional welding spots of the motor are fixed, a gap is formed between two adjacent fixing parts, and the permeation of insulating paint in the subsequent paint dripping process can be ensured, so that the busbar and the conventional welding spots are connected into a whole, and the strength and the stability of the busbar structure are ensured.

The present invention discloses a non-keyhole plugging tee for pipelines, which relates to the technical field of plugging tees, and includes a tee shell and a lower guard plate, wherein an annular groove is provided on the inner wall of the tee shell, and a plug is installed in the tee shell at the position of the annular groove; the top of the plug is slidably equipped with a locking assembly, wherein the locking assembly includes a clamping ring and a driving device, and the clamping ring is composed of a plurality of first clamping parts and a plurality of second clamping parts. The present invention adopts a separable clamping ring as a clamping structure, and in the process of sending the plug into the tee shell, the first clamping part moves to the first storage position, and the second clamping part moves to the second storage position, and the clamping ring can be "disassembled" to allow the clamping ring to move into the radial cross section of the plug, and in the process of fixing the plug, the first clamping part and the second clamping part both move to the terminal position, so that a complete clamping ring can be formed at the outer edge of the plug, thereby improving the fixing strength of the plug.