10results about How to "Simple and reliable assembly process" patented technology

The utility model discloses an assembly type precast concrete wallboard which comprises a reinforced concrete wall body, the left side and the right side of the reinforced concrete wall body are respectively provided with a pouring reserved area in a concave mode, and a plurality of layers of butt joint steel bar rings which are respectively of a closed-loop structure are respectively embedded in the left side and the right side of the reinforced concrete wall body. At least part of ring bodies of the butt-joint steel bar rings are exposed out of the reinforced concrete wall body and located in the pouring reserved area; a slurry baffle is formed on the reinforced concrete wall body and located on the outer side portion of the pouring reserved area. According to the utility model, rapid and reliable connection with an adjacent wall body is realized, and the assembly is simple and reliable; due to the fact that the slurry blocking plate is formed on the outer side portion of the pouring reserved area, a scaffold and a packaging formwork do not need to be erected on the outer side of the wall body during pouring operation, and only the formwork is packaged on the inner side of the wall body, in this way, the workload of erecting the scaffold and disassembling the formwork on site is greatly reduced, the construction efficiency is greatly improved, and the construction period is shortened.

The application discloses a hand-operated pencil sharpener, which comprises a cutter holder assembly and a rocker arm assembly, and a gear reduction mechanism is arranged between the cutter holder assembly and the rocker arm assembly. The rocker arm assembly drives the cutter holder assembly to rotate through the gear reduction mechanism. The gear reduction mechanism comprises an input gear, a speed change gear and an output gear which are sequentially connected. The input gear is connected with the rocker arm assembly, and the output gear is connected with the cutter holder assembly. When the rocker arm assembly is forced to drive the input gear to rotate, the input gear acts on the output gear through the speed change gear, so that the output gear drives the cutter holder assembly to rotate at a reduced speed. The gear reduction mechanism composed of the input gear, the speed change gear and the output gear is additionally arranged, the torque is increased, and the cutter holder assembly rotates more stably and labor-savingly.

The utility model provides a receiver comprising a support assembly, the support assembly comprises a housing, an annular pole plate arranged in the housing and a PAD pin arranged at one side of the housing, and the PAD pin comprises a straight part and a vertical part fixed at one end of the straight part; the magnetic circuit assembly comprises annular magnetic steel, a middle pole plate arranged in the annular magnetic steel, middle magnetic steel arranged on the middle pole plate, a back pole plate arranged above the annular magnetic steel and a damping net arranged on the back pole plate; a voice coil and a vibrating diaphragm are sequentially arranged below the shell, one end of the voice coil extends into the position between the middle magnetic steel and the annular magnetic steel, an avoiding groove is formed in one side of the annular magnetic steel, the straight portion is arranged on the annular magnetic steel, and the vertical portion is arranged in the avoiding groove and extends in the vertical direction. The sensitivity of the receiver is improved, and the purposes of optimal performance and low cost are achieved.

The utility model discloses a wind turbine generator gearbox assembly which is characterized in that first annular grooves are formed in the two end faces of a first inner ring, first roller rings are coaxially embedded in the first annular grooves, one first roller ring rotationally abuts against the end face of a first check ring, and the other first roller ring rotationally abuts against the end face of a second check ring; a second annular groove is formed in the second inner ring, a second roller ring is coaxially embedded in the second annular groove, and the second roller ring rotationally abuts against the end face, away from the first inner ring, of the second check ring; the inner peripheral edge of the first inner ring extends to the inner peripheral side of the first center hole and is fixedly connected to the planet wheel assembly. A connecting part of an annular structure is connected between the first inner ring and the second inner ring, the connecting part is located in the second center hole, a third annular groove is formed in the outer circumferential wall of the connecting part, a third roller ring is coaxially embedded in the third annular groove, and the third roller ring rotationally abuts against the inner circumferential wall of the second center hole; and the stability and firmness of the whole structure in long-term use can be ensured.

The application provides a portable fat cutting and emulsifying device, and relates to the field of medical cosmetic instruments, which comprises a syringe and a cutting and emulsifying assembly; the syringe is used for extracting fat to be treated, and the end of the tube body of the syringe is provided with a liquid outlet hole; in the cutting and emulsifying assembly, one end of the sleeve is provided as an open end, and the other end is a closed end, and the closed end is provided with a discharge channel; the screen is fixed in the sealing plug, and the sealing plug is arranged in the sleeve; in use, only the open end of the sleeve needs to be sleeved on the end of the syringe, the fat in the syringe is injected into the sleeve, and the fat is cut and emulsified through the screen; compared with the prior art, the application is simple and reliable in assembly, convenient to operate, and improves the cutting and emulsifying efficiency of the fat.

The utility model relates to the technical field of sensor testing, in particular to a sensor handheld power supply test box, which comprises a shell, a circuit board, a battery and a display part, and is characterized in that the shell comprises a first shell and a second shell, the second shell is provided with a mounting block, the first shell is provided with a mounting groove for embedding the mounting block, and the mounting block is provided with an elastic limiting block; a limiting groove allowing the elastic limiting block to be embedded is formed in the side wall of the mounting groove, a first limiting assembly, a second limiting assembly and a third limiting assembly are arranged in an inner cavity of the first shell, the second limiting assembly and the inner wall of the containing space form a first cavity allowing a battery to be placed, and the third limiting assembly and the inner wall of the containing space form a second cavity allowing a display part to be placed; according to the product assembly, on one hand, the assembly process of the test box is simplified by adopting a screw-free design, the product yield and the production efficiency are improved, on the other hand, the internal space of the test box body is effectively utilized through the segmentation area, the overall structure is more compact, and assembly is simple and reliable.

A wiper motor brush carrier ring grounding structure disclosed by the present invention comprises a speed reducer shell, a brush carrier ring part and a grounding piece, the grounding piece is downwards assembled on the brush carrier ring part, and a third bending structure of the grounding piece is opened through the side surface of the brush carrier ring part and is downwards installed to contact with a matching surface of the brush carrier ring part. The inverted buckling structure of the grounding piece is propped open through the side face of the brush carrier ring component and then makes contact with the step face of the brush carrier ring component. The second bending structure of the grounding piece is in contact with a capacitor on the brush carrier ring component; the brush carrier ring part is installed in the speed reducer shell, the front end face of the brush carrier ring part makes contact with the installation side face of the speed reducer shell, the brush carrier ring part is guided to be installed, the arc structure at the front end of the grounding piece makes contact with the grounding face of the speed reducer shell, and the first bent structure of the grounding piece deforms and makes interference contact with the grounding face of the speed reducer shell. Through the structural design of the grounding piece and the brush carrier ring, simple and reliable assembly can be realized, and the grounding piece is prevented from overturning in the assembly process.

The utility model discloses a compass with a locking mechanism, which comprises a compass head, a first support leg and a second support leg, the first support leg and the second support leg are both rotatably mounted on the compass head, the head of the first support leg and the head of the second support leg are rotatably matched to form a hinge part, the compass further comprises a locking mechanism, the locking mechanism comprises a lock knob and a pressing part, and the locking part is arranged on the lock knob. The pressing piece is installed on the compass head in a sliding mode, the lock knob is installed on the compass head and is in transmission connection with the pressing piece, the lock knob is stressed to rotate so as to drive the pressing piece to slide relative to the compass head, and one end of the pressing piece is provided with a protruding portion matched with the hinge portion. The pressing piece slides to enable the protruding portion to abut against or be separated from the hinge portion, a user only needs to apply force to the lock knob to achieve locking and unlocking of the distance between the first supporting foot and the second supporting foot, use is labor-saving and convenient, the locking mechanism is only composed of the lock knob and the pressing piece, the structure is simple, and installation is labor-saving and convenient.

The utility model provides a serial port switching device. The serial port switching device comprises an upper shell, a lower shell, a printed circuit board, a male joint interface and a female joint interface, wherein two ends of the upper shell are provided with an upper mortise structure and an upper tenon structure; a lower tenon structure and a lower mortise structure are arranged at the two ends of the lower shell, the upper mortise structure is in mortise and tenon connection with the lower tenon structure, and the upper tenon structure is in mortise and tenon connection with the lower mortise structure to fix the upper shell and the lower shell; the printed circuit board is positioned between the upper shell and the lower shell; and the male joint interface and the female joint interface are respectively connected with two ends of the printed circuit board. The mortise and tenon joint structures are designed on the upper shell and the lower shell respectively, assembling is easy and reliable, mounting and dismounting are convenient, the production and mounting efficiency can be improved, and maintenance is convenient. Through reasonable arrangement and installation of the tenon-and-mortise structure, the problems of looseness and deformation of the serial port switching device structural member are effectively solved, the structure is simple, connection is reliable, modular standard design and batch production are easy to achieve, and the production cost is reduced.

The invention discloses a connecting structure of a main shaft and a gear box of a wind generating set and a using method, and belongs to the technical field of transmission of wind power generation gear boxes, the connecting structure comprises a fan main shaft and a gear box gear ring, and a primary planet carrier is arranged in the gear box gear ring; an internal spline is arranged at one end of the fan main shaft, an external spline is arranged at one end of the primary planet carrier, and the tooth crest of the internal spline is matched with the tooth root of the external spline; one end, away from the fan spindle, of the primary planet carrier is connected with a secondary planet carrier; a pressing plate is arranged on the side, away from the first-stage planet carrier, of the inner spline of the fan spindle and connected with the first-stage planet carrier, the first-stage planet carrier, the second-stage planet carrier and the pressing plate are provided with communicated lubricating oil ways, and the lubricating oil ways convey lubricating oil to the meshing position of the inner spline and the outer spline. By means of the connecting structure, the torque transmission capacity is greatly improved, and the stability and durability of connection between the main shaft of the generator set and the gearbox are improved.