45results about How to "Improve engagement strength" patented technology

In an angular position adjusting apparatus, tooth profiles of an internal gear 31 and an external gear 21 are formed according to loop shapes 74a and 84a of predetermined trochoid curves 74 and 84.

Disclosed is a zipper. The zipper is used for solving the problem that an existing zipper is not firm in combination. The zipper comprises two zipper tapes and a plurality of zipper teeth. The two zipper tapes are respectively provided with a yarn core, and the two yarn cores are arranged opposite to each other. The zipper teeth are arranged on the yarn cores of the zipper tapes side by side in a staggered mode and respectively provided with a first meshing piece and a second meshing pipe. Each first meshing piece is provided with a convex meshing part and a concave meshing part at the two ends in the extension direction of the yarn cores respectively so that adjacent first meshing pieces can be meshed with each other through the convex meshing parts and the concave meshing parts. The zipper tapes are clamped by each second meshing piece and the corresponding first meshing piece jointly through a supporting part. The end, opposite to the corresponding supporting part, of each second meshing piece is provided with a buckling part. At least one concave clamping part is arranged between each buckling part and the corresponding supporting part so that adjacent second meshing pieces can be meshed with each other through the buckling parts and the clamping parts.

The invention provides a fastener tape for a slide fastener, which prevents stretching of an element attaching portion in a tape longitudinal direction while maintaining plasticity possessed by a knitted fabric inherently and has the improved strength of the element attaching portion, wherein a narrow width fastener tape (1, 21, 31, 51) is composed of a warp knitting structure in which an element attaching portion (2, 22, 32, 52) constituted of a plurality of wales is formed by knitting along one side edge of a tape main body portion (3, 23, 33, 53), the element attaching portion (2, 22, 32, 52) is formed by disposing at least: a warp knitting yarn (11, 13, 16, 18) which runs in a zigzag fashion forming a needle loop across two or more wales adjacent to each other such that the needle loop is entangled with a needle loop of another knitting yarn of every other course on a wale; and a weft in-laid yarn (14, 17) which runs across two or more wales adjacent to each other.

The invention discloses a speed reducer with an internal-tooth flexible gear. The speed reducer comprises a planetary gear group, an internal tooth ring, the flexible gear and a housing, wherein a first engagement part and a second engagement part are arranged on the planetary gear group; the internal tooth ring is connected with the first engagement part of the planetary gear group; an internal tooth part is arranged on the inner wall of the flexible gear, and is connected with the second engagement part of the planetary gear group; and an accommodating cavity is formed in the housing, and the planetary gear group, the internal tooth ring and the flexible gear are arranged in the accommodating cavity. The speed reducer disclosed by the invention is high in engagement strength, capable oflowering the accuracy requirements of part machining and achieving high-accuracy output, and low in preparation cost; and moreover, the gear is low in wear and high in reversibility.

A fixing structure of a connector female seat and a circuit board, provided by the present invention, comprises a base body, a circuit board and a clamping member, the circuit board is provided with a first clamping plate, the base body is provided with a first positioning groove, the first positioning groove is also internally provided with a second clamping plate and a first limiting plate which are fixedly connected with the base body, and a gap exists between the second clamping plate and the base body. The first clamping plate is partially inserted into the first positioning groove and clamped with the second clamping plate, one end of the circuit board abuts against the first limiting plate, the other end of the circuit board abuts against the bottom wall of the first positioning groove, a second limiting plate is arranged on the clamping piece, the clamping piece is clamped with the base body, and the second limiting plate is contained in the gap. One end of the second limiting plate abuts against the second clamping plate, and the other end of the second limiting plate abuts against the side wall of the first positioning groove. The circuit board and the base body are firmly connected through clamping, deformation of the second clamping plate is limited through the second limiting plate, and the clamping strength between the circuit board and the base body is increased, so firm connection between the circuit board and the base body is kept.

The invention relates to a closed zipper tooth and a closed shielding zipper. The closed zipper tooth comprises first teeth, second teeth and a cloth seam, the first teeth and the second teeth are fixedly arranged in a staggered mode, and a meshing cloth seam groove is formed in the front end, in the thickness direction, of a first tooth meshing head and the front end, in the thickness direction,of a second tooth meshing head after fixation; the closed shielding zipper comprises a puller, a left cloth tape, a right cloth tape, left zipper teeth, right zipper teeth and a locking piece, the left zipper teeth and the right zipper teeth are the staggered closed zipper teeth, the left zipper teeth are clamped on the left cloth belt, and the right zipper teeth are clamped on the right cloth belt; the left zipper tooth meshing convex parts of the left zipper teeth are mutually clamped with the right zipper tooth meshing grooves of the right zipper teeth, and the right zipper tooth meshing convex parts of the right zipper teeth are mutually clamped with the left zipper tooth meshing grooves of the left zipper teeth. According to the zipper teeth and the zipper composed of the zipper teeth, the space between the zipper teeth, the space between the zipper teeth and the cloth belt and the space between the zipper teeth and the zipper puller are all completely sealed, and the full-sealingfunction of the zipper is effectively achieved; the zipper is high in connection strength and rich in aesthetic feeling.

An operation lever includes a lever main body A having a tapered insertion portion (1) which has locking portions (11) and in which the size in the up-down direction decreases gradually and an operation knob B having a tapered insertion hole (3)in which a size in the up-down direction decreases gradually from an opening (3a) toward a deep end wall surface (3b). The insertion hole (3)includes tapered reference surface (31)facing each other in the up-down direction. Grooves (33)are formed from the opening and along the deep end wall surface (3b) so as to protrude outward from the respective tapered reference surfaces (31) and the inner side surfaces in the insertion hole of the operation knob. The insertion portion (1) is inserted into the insertion hole (3)and the locking portions (11) bite in outward through the respective tapered reference surfaces(31).

The invention relates to the technical field of wastewater treatment devices, in particular to a wastewater treatment device for construction engineering. The wastewater treatment device comprises a shell, wherein a water inlet end is arranged on one side of the shell, and a water outlet end is arranged on the other side of the shell; the shell is internally provided with a sedimentation chamber and a processing chamber which communicate with each other, the sedimentation chamber is in communication with the water inlet end of the shell, and the processing chamber is in communication with thewater outlet end of the shell; and a chemical dosing port is formed in the top of the processing chamber. The wastewater treatment device has the beneficial effects that the advantages of compact structure and small occupied area are achieved, and the wastewater treatment device can be applied to small construction sites.

The invention relates to a recliner for a motor vehicle having a wedge capable of controlling the inclination of the vehicle seat backrest. In particular, the invention relates to a recliner for a motor vehicle having a wedge which improves the play and strength of the recliner.

The invention provides a remote controller. The remote controller comprises a machine shell, a middle shell, a clamping piece, a battery compartment and an elastic piece, wherein the clamping piece isprovided with a clamping part, the buckle comprises a first guide part and a second guide part connected to the rear side of the first guide part; the first guide part and the second guide part obliquely face the rear end of the battery compartment; a clamping groove recessed towards the rear end of the battery compartment is formed in the joint of the first guide part and the second guide part;when the battery compartment moves forwards, the first guide part is in contact with and drives the clamping part to buckle the clamping groove; or the second guide part is in contact with and drivesthe clamping part to be separated from the clamping groove, so that the battery compartment is clamped with or separated from the machine shell on the premise that a switch key and a through hole do not need to be arranged, a gap between the switch key and the through hole is avoided, the appearance integrity of the remote controller is further improved, and the friction between the switch key andthe machine shell is avoided.

The present invention discloses a display device and a backlight module thereof. The display device comprises a panel module and a backlight module. The backlight module is arranged below the panel module. The backlight module comprises a back plate, a light guide plate and a reflection sheet. The edge of the light guide plate is born by the back plate. The reflection sheet is arranged below the light guide plate. The edge of the reflection sheet is level with the edge of the back plate to form a clamping joint in a non-overlapping way, and the clamping joint is roughly zigzagged.

High-efficiency and low-noise refrigeration compressor rotor, the rotor includes a male rotor and a female rotor meshingly connected, wherein the middle sections of the male rotor and the female rotor are air pressurized sections, and both ends of the male rotor and the female rotor are coaxial Equipped with a transmission connecting shaft, the air pressurized section includes a central shaft and multiple helical blades fixed on the outer periphery of the central shaft. The direction of the gas end gradually increases; the pitch of the spiral blade gradually decreases from the intake end of the rotor to the exhaust end of the rotor; a cavity is made inside the central shaft and the spiral blade, and the cavity is filled with rubber Shock the inner core. The high-efficiency and low-noise refrigeration compressor rotor can effectively improve the energy efficiency ratio of the refrigerator, increase the exhaust pressure of the refrigerator, increase the surface tension of the rotor with a cavity structure, and absorb vibration energy with a rubber shock-absorbing inner core, thereby reducing The purpose of reducing noise and improving the contact strength between the central shaft and the spiral blade.

The present invention proposes a fixing structure between a connector base and a circuit board, including a base body, a circuit board, and an engaging member. The circuit board is provided with a first engaging plate, and the base body is provided with a first positioning groove. There is also a second engaging plate and a first limiting plate fixedly connected to the base body, there is a gap between the second engaging plate and the base body, the first engaging plate is partially inserted into the first positioning groove and engaged with the second engaging plate, One end of the circuit board abuts against the first limiting plate, the other end of the circuit board abuts against the bottom wall of the first positioning groove, a second limiting plate is provided on the engaging part, the engaging part engages with the base body and the second limiting plate The positioning plate is accommodated in the gap, one end of the second limiting plate abuts against the second engaging plate, and the other end of the second limiting plate abuts against the side wall of the first positioning slot; The connection is to limit the deformation of the second engaging plate through the second limiting plate to increase the engaging strength between the circuit board and the base body, thereby maintaining a firm connection between the circuit board and the base body.

The invention relates to an anchoring device for a deep foundation pit module, in particular to an anchoring device for vibrating and shaping concrete used for building a side wall of a deep foundation pit module. It includes a template and a reinforcing rib, and an anchoring component is arranged on the template, and the anchoring component is arranged corresponding to the reinforcing rib, and the anchoring component anchors the template through the reinforcing rib. In the present invention, the utilization of the reinforcing ribs is realized through the set anchoring assembly, specifically, the reinforcing ribs are used to fix the formwork so that the anchoring operation is completed after the distance is controlled on the rail frame, so that the reinforcing ribs not only have the effect of strengthening the strength of the concrete , It can also assist the formwork to anchor, improve the force strength of the formwork, and avoid the formwork from shifting during the concrete vibration setting process, thereby improving the wall-building effect of the foundation pit module.

The invention discloses a lock wire contact piece for preventing screw from coming out, which includes a contact piece, a pin, a square nut and a screw. In the cavity of the square nut, when the screw is loosened, the flange prevents the screw from coming out of the threaded hole of the square nut. When the screw is locked, the contact piece inserted into the square nut blocks the through hole on the square nut, and the screw Also can't escape from the through hole; the present invention adopts the thickening layer arranged on the square nut, and the threaded hole is arranged on the thickening layer, ensures the effective number of turns of the screw thread on the threaded hole, thereby strengthens the engagement of the screw and the threaded hole Strength, improving the connection reliability of the lock wire contact.