41results about How to "Self-locking stability" patented technology

The invention discloses a limit-type irradiation sample hole plug. The limit-type irradiation sample hole plug comprises a radiation plug main body, wherein the upper end of the radiation plug main body is provided with an upper end cover; an operating rod is movably arranged in the upper end cover; the lower end of the radiation plug main body is provided with a self-locking mechanism; the lower end of the operating rod is provided with a self-locking trigger end; the central part of the operating rod is provided with a first buckle; the lower part of the upper end cover is provided with a second buckle; the first buckle and the second buckle are mutually locked; and the lower part of the upper end cover is also provided with a wedge-shaped telescopic mechanism. The limit-type irradiation sample hole plug provided by the invention is expected to solve the problems of complicated structure of an irradiation sample hole plug and low locking efficiency due to the need of artificial locking of the irradiation sample hole plug after being displaced to a locking position.

The invention discloses a plant growth machine which comprises a base, a planting panel, a light supplementing unit, a nutrient solution adding unit and a temperature regulating unit, wherein water ina water storage tank on the base is supplied to a water supply tank; the water in the water supply tank provides the water required for the growth of plants in a planting basket; the light supplementing unit supplements light to the plants, can adjust light supplementing position and strength in both horizontal direction and vertical direction, and can supplement light flexibly to meet differentlight supplementing requirements of different plants. The plant growth machine provided by the invention is provided with the nutrient solution adding unit and the temperature regulating unit, can monitor the temperature of the water in the water tank and the concentration of the nutrient solution in real time, and can regulate the temperature and add the nutrient solution as needed to ensure healthy growth of the plants.

The inventio discloses a knee arthroscope joint distraction device for orthopedics department. The knee arthroscope joint distraction device includes an extension column in a hollow column shape, a control board capable of swinging up and down is arranged at the front end of the extension column, and distraction heads capable of moving up and down and swing front and back are arranged at the top ends and the bottom ends of the control board correspondingly; a disc-shaped rotating disc is rotatably connected to the outer circumference of the rear end of the extension column, the rear end surface of the extension column is fixedly connected with a pointer plate, the rotating disc is hinged to the inner side of an annular positioning ring, inserting plates which can move back and forth are arranged at the left and right ends of the positioning ring, and clamping plates capable of swing left and right are hinged to the front ends of the inserting plates; the bottom ends of the clamping plates are connected by clamping straps; and the left ends and the right ends of the clamping straps extend out of the clamping plates and connected by velcros. The problems that distraction devices havehigh excessively requirements on incisions and cannot effectively distract a knee joint of a patient for a long time in current knee arthroscopic surgery are effectively solved.

The invention discloses a guiding idler wheel set of a fork multistage gantry. The guiding idler wheel set is arranged between gantry inner channel steel and gantry outer channel steel and comprises amain idler wheel piece, a lateral idler wheel piece and an adjusting assembly, wherein the main idler wheel piece and the lateral idler wheel piece move up and down along the gantry inner channel steel, and one end of the adjusting assembly and the gantry outer channel steel are fixedly mounted. A lateral idler wheel seat and the adjusting assembly are connected through a thread. According to theguiding idler wheel set of the fork multistage gantry, annular abrasion-resistant rings are embedded into the outer circumferential faces of a main idler wheel and a lateral idler wheel, so that whenthe guiding idler wheel set is used, the abrasion-resistant ring of the main idler wheel makes contact with the inner side faces of two edge plates of the gantry inner channel steel, the abrasion-resistant ring of the lateral idler wheel makes contact with the inner side face of a middle plate of the gantry inner channel steel, the situation that the main idler wheel and the lateral idler wheel directly make contact with the gantry inner channel steel is avoided, thus the abrasion degree to the gantry channel steel and abrasion of the main idler wheel and the lateral idler wheel are reduced,and the service life of the guiding idler wheel set and the gantry channel steel is prolonged.

The invention discloses a turnover type medical oxygen bottle carrier convenient to load and unload. Two wheels are installed on the two sides of a vehicle frame, two universal trundles are installed on the rear side of the vehicle frame, the front ends of four arms are each provided with a clamping plate, the rear sides of the four arms are all rotationally connected with an overturning frame, a first connecting rod is rotationally connected with a second arm and a fourth arm, and a second connecting rod is rotationally connected with a third arm and a fourth arm. The second connecting rod is rotatably connected with the first arm and the third arm, the turnover frame is rotatably connected with the frame, the hydraulic pipe communicates with the hydraulic pump and the hydraulic cylinder, the hydraulic cylinder can be stretched by stepping on the pedal, the first connecting rod and the second connecting rod are driven by the transverse groove rod to move upwards, and therefore the oxygen bottle is clamped by the four clamping plates, and the thrust of the hydraulic cylinder can be removed by stepping on the pressure release valve. A first spring and a second spring can pull a first connecting rod and a second connecting rod downwards, four clamping plates release the clamping of the oxygen bottle, a turnover frame swings forwards to enable two front supporting wheels to be in contact with the ground, at the moment, the clamping and releasing processes of the oxygen bottle are achieved, and the turnover frame swings backwards and is locked to achieve the transportation of the oxygen bottle.

The invention discloses a planting machine with light supplement lamps adjustable in position. The planting machine with the light supplement lamps adjustable in position includes a base, a planting panel and a light supplement lamp unit. The planting panel is provided with a planting basket, the base consists of a base body, a water storage groove and a water supply groove, and the light supplement lamp unit includes a first lamp pole, a second lamp pole, a connection sleeve and a connection base; the first lamp pole is vertically arranged, the second lamp pole is horizontally arranged, the connection sleeve and the connection base are both positioned in an insertion groove of the base body, the connection base is connected to the bottom of the connection sleeve, the bottom of the first lamp pole is connected with the connection sleeve, and the second lamp pole is hinged to the top of the first lamp pole. The first lamp pole and the connection sleeve can both horizontally rotate relative to the connection base; the connection lamp pole can vertically rotate around a damping rotating shaft on the junction between the first lamp pole and the second first lamp pole. The planting machine has the advantages that the position and intensity of supplemented light can be flexibly adjusted, and the light supplement demands of different plants are met.

The invention discloses a lightweight design method of an electromagnetic type automatic balancing device, belongs to the field of electromagnetic type automatic balancing of rotating machinery, and mainly optimizes the structure of a balancing head and reduces the mass of the balancing head in a mode of combining structural design and electromagnetic simulation. The method has the advantages that structural design and electromagnetic simulation are combined, firstly, the size boundary of the electromagnetic automatic balancing device is determined according to the installation space, and a finite element model is preliminarily established in electromagnetic simulation software; secondly, electromagnetic simulation is conducted on structure parameters such as the thickness of an excitation ring, the thickness of a permanent magnet, the number of teeth and the length of the teeth, the shape of the permanent magnet and the number of ampere turns, and on the premise that the self-locking and driving functions of the balance weight disc are met, the axial and radial thicknesses of related structures of the electromagnetic type automatic balancing device are reduced; and finally, based on an electromagnetic simulation result, light weight of the electromagnetic automatic balancing device is achieved with the assistance of structural design.

The invention relates to the technical field of orthodontics, and discloses a self-locking bracket. The self-locking bracket comprises a bottom plate, a bracket body, a self-locking cover and a lock cylinder, wherein the bottom plate is used for being connected to the lip side face or the tongue side face of a tooth; the bracket body is connected to the side face, back to the tooth, of the bottom plate; a groove used for containing an arch wire is formed in the bracket body; the self-locking cover is arranged on the bracket body and used for covering the groove; a sliding groove is formed in the side, facing the bracket body, of the self-locking cover; the lock cylinder is made of an elastic material and comprises a fixed section fixedly connected with the bracket body and a deformation section arranged in the sliding groove; and the middle of the deformation section is hollowed out and forms a gap. The self-locking bracket provided by the invention is simple and reliable in structure, convenient to operate and easy to clean, the self-locking cover does not shake during use, and self-locking performance is stable. The invention also provides an orthodontic appliance which adopts the self-locking bracket. Thus, the orthodontic appliance also has the advantages of simple and reliable structure, convenience in operation, easiness in cleaning, stable self-locking performance and the like.

The invention discloses a duplex medical oxygen bottle carrier. Two wheels are installed on the two sides of a frame, three universal trundles are installed on the rear side of the frame, the front ends of four arms in each clamping mechanism are each provided with a clamping plate, the rear sides of the four arms in each clamping mechanism are rotationally connected with a turnover frame, a first connecting rod is rotationally connected with a second arm and a fourth arm, and a second connecting rod is rotationally connected with a third arm and a fourth arm. The second connecting rod is rotationally connected with the first arm and the third arm, the two clamping mechanisms are rotationally connected with the frame, the hydraulic pump communicates with the two hydraulic cylinders, the hydraulic cylinders can stretch by treading a pedal, a transverse groove rod drives the first connecting rod and the second connecting rod to move upwards, and therefore four clamping plates clamp the oxygen bottle; a pressure release valve is treaded to relieve thrust of a hydraulic cylinder, a first spring and a second spring pull a first connecting rod and a second connecting rod downwards, four clamping plates release clamping of the oxygen bottle, a clamping mechanism swings forwards to enable a front supporting wheel to make contact with the ground, and the process of clamping and releasing the oxygen bottle is achieved. After the clamping mechanism swings backwards and is locked, the oxygen bottle can be transferred.

The embodiment of the invention discloses a self-locking control method of a gate blocking part, a gate control system and equipment, which are used for solving the problem that the self-locking mode of the existing gate blocking part is difficult to consider the moving speed and the self-locking torque of the blocking part, so that the gate is easily damaged or the self-locking fails. The method comprises the following steps: determining a gate operation mode of a gate control system; if the gate operation mode is the self-locking mode, the reduction ratio of the adjustable speed reducer is controlled to be a first reduction ratio corresponding to the self-locking mode; the operation current in the gate control system is controlled to be smaller than or equal to a preset current threshold value; and controlling the blocking part to move towards the target position according to the first reduction ratio. According to the technical scheme, the self-locking torque of the blocking component in the self-locking mode and the moving speed of the blocking component in the non-self-locking mode can be considered, meanwhile, the situation that a gate control system breaks down due to the fact that the running current is too large can be avoided, and stable self-locking of the blocking component is achieved.