48results about How to "Avoid sliding teeth" patented technology

The invention provides a printed board wedge locking device comprising a guide rail (1), a slider (2), a fixing block (3), a countersunk head hollow rivet (4), an extrusion block (5), a bolt (6), a spring (7) and a knob (8). One end of the guide rail (1) is fixed on the fixing block (3) through the countersunk head hollow rivet (4); the slider (2) and the extrusion block (5) are located in a guide groove the guide rail (1) and can move along the guide rail (1). The bolt (6) is fixed in a threaded hole (9) in one end of the guide rail (1) after penetrating through the knob (8), the extrusion block (5) and the spring (7) in turns. The knob (8) is matched with the bolt (6) through threads. When being rotated, the knob (8) can move axially along the bolt (6), extrude the extrusion block (5) and make the slider (2) protrude. The printed board wedge locking device is simple in structure, low in cost, light in weight, good in heat conduction and electric conduction effects and high in reliability.

The invention discloses a screw fastening jig which comprises a base.A base plate capable of rotating relative to the base is arranged on the base.A product fixing device is arranged on the base plate.An upper fixing plate is arranged at the upper end of the product fixing device, a screw guide sleeve is arranged on the upper fixing plate, and a first supporting column and a second supporting column are arranged on the base, wherein the first supporting column is used for supporting the base plate to make the base plate be in an inclined state, and the second supporting column is used for supporting the base plate to make the base plate be in a perpendicular state.A product is fixed when the product fixing device is in an inclined state, and then the product fixing device is rotated to make the axis of a screw hole and the horizontal plane be perpendicular and maintain the state; a product protection hood and the screw guide sleeve are adopted to prevent the surface of the product from being scratched in the screw fastening state, screw loose of a screw or the screw hole is avoided, the screw fastening efficiency is improved, and thus the defective rate is reduced.

The invention discloses a locking member, a locking structure and an air conditioner. The locking member comprises a plate body part; a rotary shaft is arranged at one end of the plate body part; a clamping-connection part is arranged at the other end of the plate body part, thus, locking of the two parts can be achieved, and compared with the traditional mode that the two parts are fixed throughscrews, the fixing efficiency between the two parts is improved; and meanwhile, the screw loosening phenomenon caused by repeated screw turning can be avoided, and thus damage of a fixed structure canbe effectively avoided.

The invention relates to the field of hydraulic pumps. A rotary jig device of a hydraulic pump assembly machine comprises a divider, a turntable, jig assemblies, a correction assembly, a laser assembly and a pressing assembly; the divider is mounted on a rack, the center of the turntable is mounted on an output shaft of the divider, and the jig assemblies are mounted on the turntable and correspond to four stations, namely a pump cover feeding station, a pump cover locking station, a detection station and a feeding and discharging station respectively; and the correction assembly and the laserassembly correspond to the feeding station, and the pressing assembly corresponds to the pump cover locking station. The rotary jig device of the hydraulic pump assembly machine has the advantages ofhigh hydraulic pump assembly precision, good stability and high jig circulation efficiency.

Provided is a collection and diversion device for a power supply cabinet. The collection and diversion device is installed on a power supply cabinet body, and comprises multiple omnibus bars, multiple insulating lining plates and multiple omnibus bar shield plates; wherein different omnibus bars are connected to a positive pole supple line, a negative pole supple line and a ground lead respectively; the multiple insulating lining plates are connected to the power supply cabinet body and the omnibus bars; the multiple omnibus bar shield plates are arranged on the omnibus bars, and cover wiring positions of the omnibus bars. The collection and diversion device for the power supply cabinet facilitates cabinet wiring arrangement, reduces the potential difference among equipment, improves equipment operation reliability, reduces the unintended touch probability of the omnibus bars and the cabinet body and the equipment, and improves the wiring reliability.

The invention provides a drainage structure of an airplane cabin door. The drainage structure comprises a drainage bottom tank, a water retaining bar, a drainage tube and a check valve, wherein the drainage bottom tank comprises a tank base as well as a water collecting tank, a drive chamber and a water retaining tank which are arranged in the length direction of the tank base; a tapered hole is formed in the bottom of the water collecting tank; the drainage tube is fixedly connected with the bottom of the tapered hole; the check valve is connected in series onto the drainage pipe. According to the drainage structure of the airplane cabin door, complete sealing can be realized when the tapered hole is plugged by a tapered seal head, automatic seal is realized when the cabin door is closed, normal air pressure is ensured,and safe take-off is guaranteed; when the airplane cabin door is opened, drainage is realized automatically, and water droplets at the edge of the cabin door are also blocked under the action of the water retaining bar, and water cannot be accumulated.

The invention discloses a high-strength corrosion-resistant plastic screw. The screw comprises a screw rod, a screw head integrally connected with one end of the screw rod, and a locking disc head arranged at the other end of the screw rod in a sleeving mode, wherein an external thread structure is integrally machined on the screw rod, and the screw rod, the screw head and the locking disc head are all made of high-strength corrosion-resistant plastic. The high-strength corrosion-resistant plastic comprises the following raw materials of, by weight, 58%-62% of PA6, 25%-28% of glass fiber, 8%-12% of nano silicon dioxide and 4%-8% of nano aluminum oxide. According to the high-strength corrosion-resistant plastic screw, through the above mode, the screw rod, the screw head and the locking disc head are all made of the high-strength corrosion-resistant plastic with an excellent formula, and have excellent strength and corrosion resistance, and the phenomena of screw loose and breaking in the using process of the screw are avoided.

An anti-impact theftproof bottle cap comprises a bottle cap body (1) provided with internal threads, a safety ring belt (2), and an annular theftproof surrounding (4) that are subjected to integral injection molding. A ring kerf (3) is disposed between the bottle cap body (1) and the safety ring belt (2). The ring kerf (3) is provided with a plurality of connecting bridges (31) at equal intervals. The annular theftproof surrounding (4) is reversibly connected to the edge of the safety ring belt (2). The annular theftproof surrounding (4) forms a flange in the inner side of the safety ring belt (2), and the annular theftproof surrounding (4) is connected to the safety ring belt (2) in an obtuse angle manner. An inner ring of the annular theftproof surrounding (4) is close to the center line of the bottle cap, and an outer ring of the annular theftproof surrounding (4) is connected to the safety ring belt (2). Wedge-shaped lugs (41) that are distributed in a spaced manner are formed in the surface of the annular theftproof surrounding (4) away from the inner cavity of the bottle cap. A thin-wall portion (42) is formed between the two adjacent wedge-shaped lugs (41). The wedge-shaped lugs (41) are of a wedge-shaped protrusion structure. The high end of the wedge-shaped lug structure is close to the inner ring, and the low end of the wedge-shaped lug structure is close to the outer ring. The bottle cap can bear the upward stamping force from the interior of a bottle and prevent the bottle cap from being loosened, and has good anti-stamping performance and theftproof performance.

The invention discloses a vehicle-mounted hand-operated air conditioner controller, and relates to the technical field of vehicle-mounted air conditioners. The vehicle-mounted hand-operated air conditioner controller comprises a panel which is provided with a rotary knob and keys. The rotary knob is sleeved with a rotary knob cap. The rotary knob cap is fixedly connected with a circuit board inside the controller. The rear portion of the rotary knob is connected with a driving cylindrical gear which is meshed with a driven cylindrical gear at one end of a middle rotating shaft. A cylindrical gear at the other end of the middle rotating shaft is meshed with a rear gear. The rear gear is fixed to a rear cover. A boss is arranged on the rear gear. The rear gear is fixedly connected with a control part inside an air conditioner box through the boss and a pull rope. The vehicle-mounted hand-operated air conditioner controller can solve the problems that a rotary knob of an existing hand-operated air conditioner controller is simple and simplex in appearance structure, operating force of the rotary knob is large and not uniform, and the operation hand feeling of the rotary knob is affected.

The invention discloses a tool clamp suitable for assembling batteries of various specifications, and relates to the technical field of battery related machining auxiliary equipment. The tool clamp comprises a machining plate and two low arc plates, clamping plates are arranged on the left and right portions of the upper end of the machining plate, the low arc plates are located between the two clamping plates, I-shaped frames are fixed to the lower ends of the clamping plates, connecting plates are fixed to the middles of the lower ends of the I-shaped frames, and progressive toothed plates are arranged on one sides of the connecting plates. A motor is fixed into a mounting frame, a main gear is fixed to the rotating shaft end of the motor, moving plates are fixed to the positions, corresponding to movable openings, of the lower side of the low arc plates, and height limiting arc plates are arranged on the side walls, in the opposite directions, of the two clamping plates. According to the tool clamp suitable for assembling the batteries of various specifications, the motor sequentially drives the main gear, the progressive toothed plates and the clamping plates to move, the working efficiency of clamping the batteries is reduced, and meanwhile, the height of the batteries of different specifications is effectively limited through movable adjustment of the low arc plates and a height limiting arc plate.