65results about How to "To achieve the purpose of self-locking" patented technology

The embodiment of the invention relates to a cavity filter, providing a screw device and a cavity filter which uses the screw device; the cavity filter is directly screwed into the cavity of the filter by a screw; the object of self-locking is achieved by changing the space of the thread; furthermore, as the nut is not required, the screw is tuned in the cavity and is self-locked; therefore, the cavity filter does not exceed the cavity and increases no thickness of the filter.

The invention discloses a dental orthodontic self-locking supporting groove, which comprises a base plate and a supporting groove body with an arc wire slot. The supporting groove body is provided with a supporting groove port at the intersection of the supporting groove body and the arc wire slot; slide grooves formed by wire-electrode cutting are symmetrically arranged at the two sides of the supporting groove port; groove sides are vertically arranged in the slide grooves; supporting groove covers made from elastic materials are arranged in the slide grooves in a sliding manner; slide bars are arranged at the two sides of each supporting groove cover; front wing hooks and rear wing hooks are respectively arranged at front ends and rear ends of outer sides of the slide bars; the two sides of the start ends of the slide grooves at the left sides of the groove sides are provided with chutes along the insertion direction of the supporting groove covers; the two sides of terminal ends of the slide grooves are provided with horn grooves; the openings of the horn grooves are reduced along the insertion direction of the supporting groove covers; and the height of upper end faces of at least one part of chutes and the horn grooves is lower than the upper end faces of the slide grooves. As long as the supporting groove covers are pushed to the end, the wing hooks at the front ends and the rear ends of the supporting groove covers bend, the supporting groove covers are subjected to elastic deformation by using the three kinds of grooves which are not located in the same plane, and thus, the aim of self locking is reached. The tedious operation of steel wire ligature is saved.

The invention relates to an axial pay-off device capable of preventing shutdown wire accumulation. The axial pay-off device comprises a wire conveying assembly, a brake assembly, a steel pipe, a supporting cross rod and a bobbin; the brake assembly is coaxially embedded in the bobbin; the shell of the brake assembly and the bobbin are fixedly mounted together; the lower end of the steel pipe arranged vertically is coaxially and rotatably mounted in the brake assembly, while the upper end portion of the steel pipe is fixedly mounted together with the wire conveying assembly; the supporting cross rod is radially and fixedly mounted on the steel pipe above the bobbin; the wire conveying assembly, the supporting cross rod and the steel pipe all rotate around the central axis. The pay-off device has the advantages that a cylindrical pin in the brake assembly can be inserted in the through hole of a brake sleeve instantaneously upon shutdown in the mode of motion of putting the wire conveying assembly and the brake assembly in linkage by use of tractive force generated by a steel wire rope, and therefore, the steel pipe stops rotating immediately at the moment of shutdown so that the bobbin also is stopped from rotating immediately, and consequently, the problem of wire accumulation due to that the bobbin rotates continuously after shutdown is effectively prevented.

The invention discloses a self-locking type ring-shaped buckle for a scaffold. The self-locking type ring-shaped buckle for the scaffold comprises a first buckle body, a second buckle body and antislip blocks. The first buckle body and the second buckle body are both of semi-ring-shaped structures. The first end of the first buckle body is connected with the first end of the second buckle body in a hinged mode, the inner walls of the first buckle body and the second buckle body are both of conical-face structures, and a cone-shaped cavity body is formed through cooperation of the first buckle body and the second buckle body. The first side faces of the antislip blocks are partially-cylindrical cambered faces. The second side faces of the antislip blocks are opposite to the first side faces of the antislip blocks, and the second side faces are conical faces matched with the inner wall of the first buckle body or the inner wall of the second buckle body. The antislip blocks are arranged in the cone-shaped cavity body defined by the first buckle body and the second buckle body in an enclosed mode. Friction coefficient of the first side faces of the antislip blocks is larger than that of the second side faces of the antislip blocks. According to the self-locking type ring-shaped buckle for the scaffold, self-locking of the ring-shaped buckle can be achieved, the ring-shaped buckle is prevented from sliding downwards, and construction safety is guaranteed.

The invention relates to the technical field of mechanical assembly, in particular to a split self-locking nut, comprising a first connecting block and a second connecting block located above the first connecting block, and a half Circular first internal thread, the center of the lower end of the second connecting block is provided with a semicircular second internal thread matching the first internal thread; the middle part of the upper end side of the first connecting block is provided with a groove groove, both ends of the groove are provided with first through holes, the middle part of the lower end side of the second connection block is provided with a plugboard that matches the groove, and the center of the plugboard is provided with a The other side of the upper end of the first connection block is provided with a threaded hole, and the other side of the lower end of the second connection block is provided with a threaded hole that matches the threaded hole. Step through hole. The invention is convenient to use, has good self-locking performance, wide practical range and reduces potential safety hazards.

The invention discloses a laparoscope myomectomy tourniquet with the self-locking function. The laparoscope myomectomy tourniquet with the self-locking function comprises an elastic shrinkage bandage and a self-locking stop buckle fixed to one end of the elastic shrinkage bandage. The self-locking stop buckle comprises a self-locking stop buckle body. The end, connected with the elastic shrinkage bandage, of the self-locking stop buckle is provided with a self-locking hole, wherein the other end of the elastic shrinkage bandage can penetrate through the self-locking hole, and the self-locking hole can lock the elastic shrinkage bandage. The other end of the self-locking stop buckle is provided with an opening self-locking slot, the outer end of the opening self-locking slot is splay, the two inner sides of the opening self-locking slot are provided with spigots respectively, and the two spigots are arranged oppositely. The laparoscope myomectomy tourniquet with the self-locking function is reasonable in structural design, convenient to use and operate and low in cost, integrity of the uterus can be guaranteed, the probability of conversion to laparotomy of the laparoscope is reduced, the possibility of blood transfusion is reduced or eliminated, the ovarian function and the fertility function are prevented from being affected, patients can recover more easily, the possibility of bleeding in myomectomy can be obviously reduced, and the laparoscope myomectomy tourniquet with the self-locking function has more obvious advantages for complex operations such as large uterine myomas and multiple myomas.

The invention discloses a building outer wall body. The building outer wall body comprises a hollow base plate fixedly installed on a building outer wall face. More than one row of wall bricks are arranged on the outer side face of the hollow base plate at equal distance. Gap cavities are formed between every two rows of wall bricks. A locking and limiting mechanism is arranged in each gap cavityin a filling manner. The locking and limiting mechanisms are fixedly installed on the outer side face of the hollow base plate and used for compressing the wall bricks on the two sides. Each locking and limiting mechanism comprises a supporting bar. A moving bar is arranged at the outer side end of each supporting bar. Inserting grooves are formed in the two sides of each moving bar correspondingly. A limiting bar is arranged in each inserting groove. According to the building outer wall body, when a concrete sealing layer is broken, the moving bars are pushed out automatically, the limiting bars on the sides of the moving bars limit the wall bricks, and falling of the wall bricks can be prevented. By the adoption of less concrete materials, the hollow base plate is utilized for achievingstrong fixing of the wall bricks, and the hollow base plate can be utilized for improving the heat-preserving ability of a building body.

The invention discloses an intelligent walking stick for rehabilitation exercise, which comprises a stick body and a head body connected with the stick body, wherein a control panel is arranged on the head body, a controller electrically connected with the control panel is arranged in the head body, one end of the stick body,which is far away from the head body, is provided with a pressure sensor used for transmitting signals to the controller, a holding rod is arranged above the head body, the holding rod is provided with a plurality of supporting rods in a downward extending manner, and the top end of the head body is provided with a sliding groove matched with the supporting rods; and a supporting column is further arranged at the end, away from the holding rod, of the supporting rod, a fool-proof groove matched with the supporting column is formed in the bottom end of the sliding groove, a supporting spring is wound around the supporting column, one end of the supporting spring makes contact with the end of the supporting rod, and the other end of the supporting spring makes contact with the bottom end of the sliding groove. According to the scheme, through the arrangement of the controller, the control panel and the pressure sensor, the pressure borne by the walking stick is detected, the stress borne by the walking stick is sensed in real time, and rehabilitation training of a patient is facilitated.

The invention discloses a mechanical over-temperature alarm pressure thermostat, relating to the technical field of mechanical thermostats. The thermostat comprises a base mechanism, wherein an uppercover mechanism is arranged above the base mechanism, a temperature limiting mechanism is arranged inside the base mechanism, and the upper cover mechanism comprises an upper casing, a pressing rod, areturn spring, a baffle, a first magnetic ring and a buckle groove. The mechanical over-temperature alarm pressure thermostat can set pressing rods of different lengths to achieve different compression amounts of the temperature-controlled spring when the pressing rods of different lengths are pressed down such that the device can achieve the purpose of adjusting different temperatures, can blockdifferent second through holes under the action of the plug plate by setting a limit slot to achieve the purpose that a specific pressing rod can be pressed down to adjust the temperature, or block all the two second holes to achieve the purpose of making the thermostat unusable, and can make the pressing rod self-locked by providing a first magnetic ring and a second magnetic ring.

The invention relates to the technical field of furniture, and particularly discloses a panel furniture and an assembling method.The panel furniture comprises a right side plate and a left side plate and further comprises a back plate, a top plate, a partition plate and a bottom plate, and the top plate, the partition plate and the bottom plate are sequentially arranged between the right side plate and the left side plate from top to bottom; the right side plate and the left side plate are spliced with the top plate, the partition plate and the bottom plate through dovetail tenon-and-mortise structures; vertical back plate grooves are formed in the rear ends of the right side plate and the left side plate correspondingly, and the left end and the right end of the back plate are installed in the two back plate grooves correspondingly; a self-locking groove is formed in the rear end of the top plate, and the upper end of the back plate is installed in the self-locking groove; and protruding sawtooth-shaped self-locking parts are arranged at the two ends of the back plate, a tensioning force can be generated after installation, and the purposes of tensioning and self-locking are achieved. The panel furniture is spliced through the mortise and tenon structure, the machining precision is high, hardware connecting pieces are not used, the error rate is low, the production efficiency and the client side assembling efficiency are improved, time and labor are saved, the production cost is greatly reduced, the structure is stable, and stability is good.

The invention relates to a radial frequency module, a shell structure of the radio frequency module and a thread self-locking structure. The thread self-locking structure comprises a column body. A threaded hole is formed in the column body. The end face of the column body is concave towards to the threaded hole. The outer wall of the column body is provided with multiple deformation grooves whichare distributed in the circumferential direction of the column body. Deformation portions capable of being squeezed and deformed are formed between the deformation grooves and the end face. The end face is provided with openings extending in the radial direction of the column body. The openings are located between the adjacent two deformation grooves. In the screw tightening process, the deformation portions are squeezed to generate expansion deformation, deformation of the deformation portions enable threads on the inner wall of the threaded hole to generate tidy displacement, the gap between the threads on the inner walls of the threaded hole and threads on the screw is reduced, friction force is formed, and the self-locking purpose is achieved. The thread self-locking structure can prevent threaded connection from being loose and prevent the screw from falling; and besides, since the thread self-locking structure is used for looseness prevention, the structure is simple, the reliability is high, and assembly and disassembly of the screw are convenient.

The invention discloses a high-rise track replacement and maintenance frame for municipal administration. The high-rise track replacement and maintenance frame for municipal administration comprises two lifting rods clamped on fixed bolts. First sliding grooves are separately formed in the lifting rods. First chains are separately arranged in the first sliding grooves. First sliding blocks are separately arranged in the first sliding grooves. First chain wheels which correspondingly mesh with the first chains are separately arranged in the first sliding blocks. Lifting blocks are separately arranged on the first sliding blocks. Supporting blocks are separately connected to the lifting blocks. Corresponding fixed grooves are separately formed in the supporting blocks, sliding of the first sliding blocks can be further used for driving the lifting blocks to slide, the sliding of a track can be further driven, so that the track is lifted and lowered, and the problem that a traditional crane lifting track cannot be lifted due to the limitation of working environment is avoided.

The invention discloses an integrally-formed anti-skid anti-looseness self-locking screw rod, a fastening assembly and a tuning device. The screw rod comprises an integrally-formed screw rod body, thescrew rod body comprises a head portion and a body portion, the head portion comprises thread portions arranged in a spaced mode and an elastic portion located between the thread portions, the elastic portion is provided with an arc groove, and the arc groove and the thread portions are of an integrally-formed structure. Since the elastic portion is provided with the arc groove and located between the thread portions, when the screw rod body is adjusted, the purpose of self locking of the screw rod in the fastening assembly is achieved through springback torque produced by the arc groove structure on the elastic portion, the structure is smaller and more portable compared with a traditional non-self-locking screw rod, the fastening assembly with the self-locking screw rod is used in the tuning device since fine thread pitch fit is adopted in the self-locking way, the accuracy of adjusting the screw rod size is improved, adjusting time is shortened, and therefore the tuning device adopting the self-locking screw rod is stable relative to a traditional way and high in one-time passing rate.