12results about How to "Guaranteed assembly reliability" patented technology

A motor manufacturing method and a motor, the method comprising: providing a housing, the housing being provided with an accommodating hole, the inner wall of the accommodating hole being convexly provided with a first limiting portion and a second limiting portion which are axially arranged at an interval; a stator is provided, the stator comprises a plurality of stator laminations arranged in a stacked mode, and a matching part is arranged on the peripheral side face of the stator; enabling the matching part to be matched with the first limiting part, and mounting the stator into the accommodating hole until one axial end of the stator is propped against the second limiting part, pressing the plurality of stator laminations and enabling the stator to be positioned between the first limiting part and the second limiting part, so that the stator and the shell relatively rotate along the circumferential direction of the accommodating hole; the matching part and the first limiting part are staggered along the circumferential direction of the accommodating hole; the stator is released, and the two axial ends of the stator abut against the first limiting part and the second limiting part respectively under the action of the elastic force of the stator laminations. Therefore, low-cost, convenient and reliable assembly of the motor is realized at the same time, and the difficulty of part manufacturing and finished product assembly of the motor is reduced.

The invention discloses a stud split liquid force end pump head of a magnetic attraction plunger rod, and relates to the technical field of plunger pumps, the device comprises a pump head, one side of the pump head is connected with a pump body, the pump head and the pump body are internally provided with coaxial assembly holes respectively, plunger rod sets are arranged in the assembly holes in a matched mode, and the pump body comprises a main pump body and an auxiliary pump body which are detachably assembled; a coaxial through hole is formed among the main pump body, the auxiliary pump body and the pump head, and a first fastener is arranged in the through hole; at least two through holes are formed; the plunger rod set is provided with a first rod body and a second rod body which are coaxially connected at the ends, and a magnetic structure is arranged at the joint of the first rod body and the second rod body. According to the scheme, the plunger pump can be rapidly disassembled and assembled, the disassembling and assembling precision is ensured, calibration can be conducted in the assembling process, and the assembling efficiency and the assembling effect are improved.

An earphone with an adjustable circuit board position comprises a shell, an expansion button movably connected to the shell, a transmission piece fixed relative to the expansion button and a circuit board arranged in the shell, and an expansion button position is arranged on one side, close to the expansion button, of the circuit board. The position of the expansion button position is opposite to the position of the end part, far away from the expansion button, of the transmission part; a first positioning groove and a second positioning groove are formed in the shell, the first positioning groove and the second positioning groove are located on the two sides of the expansion button respectively, and the circuit board is clamped in the first positioning groove and the second positioning groove and has the moving capacity in the length direction of the circuit board; the circuit board connector further comprises a threaded connecting piece and a locking piece arranged on the threaded connecting piece, and the threaded connecting piece is in threaded connection with the shell and abuts against and locks the circuit board through the bottom face of the locking piece. Compared with the prior art, the assembly position of the circuit board of the earphone can be adjusted, and the assembly precision and the use effect between the expansion key position and the transmission part are ensured.

This application provides a terminal block assembly, an end cap assembly, an energy storage device, and an electrical device to reduce the cost of terminals and improve product competitiveness. The terminal block assembly includes a terminal block, pins, and a conductive element. The pins include a first pin portion and a second pin portion. The first pin portion is fixedly connected to the terminal block, and the second pin portion is fixedly connected to the first pin portion and intersects with the first pin portion. The conductive element is fixedly connected to the second pin portion, and the material of the conductive element is different from the material of the pins.

This utility model relates to the field of military equipment technology, specifically to a parachute compartment assembly and clamping device, comprising a positioning plate, a lead screw fixedly mounted on the top of the positioning plate via a bearing seat, an internally threaded block threaded to the outer surface of the lead screw, a sliding column fixedly connected to the outer end face of the internally threaded block, and a parachute compartment disposed outside the sliding column for housing a deceleration parachute; a clamping block, comprising an expansion component for controlling the clamping block to expand outward to adapt to parachute compartments of various sizes, a filling component that automatically fills gaps in the expansion component when it expands outward, and a positioning component for locking the adjusted diameter of the expansion component. By setting up the clamping block, this utility model not only allows for the expansion or contraction of the clamping block without changing tooling when assembling parachute compartments of different sizes, flexibly adapting to parachute compartments of different diameters, but also automatically fills gaps generated during the expansion process, preventing uneven stress on the deceleration parachute.

The invention discloses a stud split hydraulic end pump head of a clamping groove type plunger rod, and belongs to the technical field of plunger pumps, the stud split hydraulic end pump head comprises a pump head, a first cavity and a first assembly hole are arranged in the pump head, the first assembly hole is communicated with the first cavity, a plunger rod group is arranged in the first assembly hole, a pump body is connected to the side of the pump head, and the plunger rod group is arranged in the pump body. The pump body comprises a main pump body and an auxiliary pump body which are detachably assembled, coaxial through holes are formed among the main pump body, the auxiliary pump body and the pump head, and first fasteners are arranged in the through holes; the pump body is provided with a second assembly hole communicated with the first assembly hole of the pump head, and the plunger rod set can axially move in the first assembly hole and the second assembly hole. According to the scheme, the disassembly and assembly convenience is high, disassembly and assembly can be automatically calibrated, and the replacement and use requirements of different types of plunger pumps can be met.

The utility model relates to high pressure switch field especially relates to movable contact structure and arc extinguishing chamber and high pressure switch. Movable contact structure includes movable contact seat, and movable contact seat includes a assembly cylinder section, and the front end of assembly cylinder section is connected with auxiliary spout through inner thread section, and the inner and outer circumferential surface between auxiliary spout and assembly cylinder section is equipped with still the concave-convex cooperation structure of forcibly radial occlusion together when auxiliary spout is screwed to the spin into tail section on assembly cylinder section, and still install movable arc contact assembly in assembly cylinder section, and movable arc contact assembly extends into auxiliary spout and with the inner circumferential surface of the part of auxiliary spout and assembly cylinder section assembled connection is inlayed, to carry out the location in the direction of its inward, keep the occlusion state of concave-convex cooperation structure. This movable contact structure can keep the occlusion of concave-convex cooperation structure through movable arc contact assembly after assembly is completed, thereby guaranteeing the reliable connection between auxiliary spout and assembly cylinder section.

The utility model discloses a pull head device which comprises a pull head seat and a pull piece, and a linkage clamping ring is arranged on the pull piece. A positioning camber beam is arranged above the puller seat, the middle of the positioning camber beam is in clearance fit with the puller seat to form a linkage groove, and the front end of the positioning camber beam is in clearance fit with the puller seat to form a pre-positioning clearance; a plugging block is hinged to the positioning elbow, the plugging block can rotate to the position below the positioning elbow around a hinged shaft of the plugging block and plug the pre-positioning gap, and a locking piece capable of limiting and fixing the plugging block plugged in the pre-positioning gap is arranged on the puller base. The puller device is reasonable in assembly adaptation and component assembly structure, can effectively avoid adverse effects of components such as a pulling piece on the whole sewing process of a product, and guarantees the processing quality of the whole product. The utility model further discloses a zipper assembly applying the puller device.

The present invention discloses a magnetic latching relay with auxiliary contacts, comprising an auxiliary contact part, a push card and a base; one side of the push card is provided with a second card slot with a lateral opening; the auxiliary contact part comprises an auxiliary moving spring and an auxiliary moving contact; the auxiliary moving contact is fixed on the auxiliary moving spring and the position where the auxiliary moving spring fixes the auxiliary moving contact can swing relative to the root of the auxiliary moving spring; at the position where the auxiliary moving spring fixes the auxiliary moving contact, an auxiliary moving spring extension piece is also extended in the direction of the second card slot on one side of the push card, and the end of the auxiliary moving spring extension piece is adapted in the second card slot, so that the push card can drive the auxiliary moving contact to move when it moves back and forth to realize the closing or separation of the auxiliary contact. The present invention can improve the indication state reliability, enhance the assembly reliability and enhance the mechanical durability of the auxiliary moving spring, thereby effectively ensuring the electrical service life of the magnetic latching relay.

The utility model relates to the technical field of electrical cabinets, in particular to a power distribution cabinet drawer which comprises a drawer shell and a base, the drawer shell is slidably connected to the base, pulleys are rotatably and symmetrically connected to the interiors of the two side walls of the drawer shell in the sliding direction of the drawer, and the bottoms of the pulleys are in sliding fit with the base. Shell limiting plates extending upwards are arranged on the two sides of the base, a plug board is arranged at the rear end of the base, the stability and reliability of sliding fit between the drawer shell and the base can be guaranteed by arranging the pulleys, and the shell limiting plates extending upwards are arranged on the two sides of the base and can play a role in limiting displacement of the drawer shell towards the two sides; and the pulley notches are formed in the chassis and below the pulleys, so that the bottoms of the pulleys are in sliding fit with the base, the use stability and reliability of the pulleys can be ensured, and the movement of the drawer shell is more stable and reliable.

The invention relates to the technical field of household appliances, and discloses a base assembly and a food process.The base assembly comprises a shell, a first drainage structure and a second drainage structure are arranged on the shell, the first drainage structure communicates with the interior of the shell, and the second drainage structure communicates with the outside; the air duct assembly is connected to the shell, the air duct assembly is arranged between the first drainage structure and the second drainage structure, a third drainage structure is arranged on the air duct assembly, in the height direction, one end of the third drainage structure corresponds to the first drainage structure, and the other end of the third drainage structure corresponds to the second drainage structure. The drainage structures are arranged on the shell and the air duct assembly correspondingly, and the drainage structures are arranged correspondingly, so that when water enters the base assembly, the inflow water in the base assembly can be drained outwards in time through the multiple drainage structures correspondingly arranged in the height direction; and liquid accumulated in the base assembly is prevented from breeding bacteria or electrical elements in the base assembly are prevented from being damaged.

The utility model relates to a kind of filter systems for lens with lotus petal type lens hood, including connection seat and one above filter that are sequentially magnetically attracted and stacked in the front end of connection seat;The connection seat is circular ring, and its inner side surface is equipped with one above limiting portion, each The limiting portion is clamped on the recess between the two petal-shaped edges of lotus petal type lens hood, and the connection seat assembled to the front end of lens is limited in circumferential direction and front-back direction;The rear end of the connection seat has the hoop of integrated connection, and the hoop is sleeved on lens, and the connection seat is locked on lens.By setting limiting portion, the connection seat assembled to the front end of lens is limited in circumferential direction and front-back direction, ensure that the position of filter system is consistent in front-back direction when assembling to lens each time, ensure the assembly stability and reliability of filter system and lens.