40results about How to "Restrict relative movement" patented technology

The invention discloses a geologic body structural surface stress-fluid coupling shearing rheological system which comprises a normal loading system, a shearing box, a sealing rubber sleeve, a shearing loading system and a seepage pressure loading system, wherein the shearing box comprises a box accommodation part for accommodating a rock test part inside; box body connecting parts are arranged on two sides of the shearing box; the size of the inner wall of each box body connecting part is greater than that of the inner wall of the box body accommodation part; the sealing rubber sleeve comprises a rubber sleeve accommodation part; rubber sleeve connecting parts are arranged on two sides of the rubber sleeve accommodation part; the size of the outer circumference of the rubber sleeve connecting part is matched with that of the inner wall of the box body connecting part; the shearing loading system comprises two active loading ends which are staggered from each other inside the shearing box; the active loading ends are controlled by hydraulic systems; the hydraulic systems are used for controlling that piston chambers for exerting force to the active loading ends are in sealed connection with the box body connecting parts on two sides of the shearing box through shearing connecting parts; the sealing rubber sleeves are pressed to the inner wall of the shearing box through the shearing connecting parts; the seepage pressure loading system comprises a seepage hole which is communicated with the end surface of the rock test part; a seepage pressure pump is used for exerting seepage pressure to the rock test part through the seepage pressure hole.

The invention provides a railway vehicle and a hook buffer device thereof. While curve pass is realized, a connecting structure is simplified, a fit clearance is reduced, and the fitting tightness between a tail hook pin and a pin hole is improved. The hook buffer device comprises a front slave plate base, a rear slave plate base and a bidirectional buffer, wherein the front slave plate base and the rear slave plate base are connected with a vehicle body; the bidirectional buffer is fixedly connected between the front slave plate base and the rear slave plate base and is provided with a carrying body with a buffering function and a connecting component acting on the carrying body; the connecting component is hinged to a vehicle hook through the tail hook pin; the tail hook pin extends up and down; a rotating component is assembled between at least one of the connecting component and the vehicle hook, and the tail hook pin, so that the connecting component and the vehicle hook relatively rotate in a vertical plane; the rotating component is matched with the connecting component and the vehicle hook, so that relative displacement between the connecting component and the vehicle hook in the front-back direction is limited. Due to the fact that the vehicle hook and the connecting component can be relatively fixed in the front-back direction, no matter in an assembling state or various working states, the longitudinal impact caused in a vehicle driving process can be obviously reduced, the usability of the vehicle is improved, and the abrasion is reduced.

The invention relates to a building-block multifunctional heat dissipation base of a notebook computer, comprising a heat dissipation plate, a fan module, fasteners, a USB power supply adapter, a USB concentrator, support bases and stay rods, wherein a raised skidproof stopper is arranged on the rear end of the heat dissipation plate, both ends of the heat dissipation plate are provided with rotation shafts, a heat dissipation grid plate is arranged in the heat dissipation plate, and stay rod slots are arranged below two side plates; the rear ends of the support bases are provided with rotation shaft holes, the outer side surfaces are fixedly connected with the USB concentrator, a group of arm brace holes is arranged in the inner side surfaces, and the fasteners are connected to the front ends ; the heat dissipation plate is movably connected with the support bases at two sides by inserting the rotating shafts at two sides into the rotating shaft hole of the support base, and is positioned and connected by the stay rods one ends of which are fixed in the arm brace holes of the support base and the other ends are supported the stay rod slots of the heat dissipation plate; and the heat dissipation grid plate of the reverse side of the heat dissipation plate can be detachably connected with the fan module. The invention is suitable for being assorted with the notebook computer of any type and size, preferably with the notebook computers of 10-15 inches. According to different requirements, different function modules can be configured, and various forms of combination are carried out.

The invention relates to a looseness-preventing mechanism in reversion of a pump impeller, which is characterized by comprising the impeller, a cylinder pin, a shaft sleeve, an inner hexagon screw, an upper shaft sleeve, a main shaft, a plane and a coupling thread, wherein the impeller is screwed on the main shaft by the coupling thread; the impeller abuts against the shaft sleeve which abuts against the upper shaft sleeve, so that the axial movement of the impeller is limited; the impeller is connected with the shaft sleeve by the cylinder pin, and the relative movement of the impeller and the shaft sleeve in the circumferential direction is limited, so that the synchronous rotation of the impeller and the shaft sleeve is ensured; and the inner hexagon screw is screwed on the shaft sleeve and abuts against the plane on the main shaft to limit the relative movement the shaft sleeve and the main shaft in the circumferential direction, so that the synchronous rotation of the shaft sleeve and the main shaft is ensured. The looseness-preventing mechanism has the advantages that the taken measure is as follows: the plane is cut on the original main shaft and simple parts such as a column pin, the inner hexagon screw and the like are added, so that the looseness preventing action in reversion of the impeller can be effectively played. The method is very simple, convenient and reliable, and the cost is low.

The invention discloses a lifting appliance for a cylinder. The lifting appliance comprises a lifting ring, a cross rod and a grabbing device. The lifting ring is arranged above the grabbing device through the cross rod, and a lifting point position is provided for lifting of the grabbing device. The lifting appliance is characterized in that the lifting appliance further comprises a clamping device; the grabbing device comprises a left pawl and a right pawl, and the left pawl and the right pawl are symmetrically arranged at the two ends of the clamping device; each pawl comprises a front pawl arm and a rear pawl arm, wherein the front pawl arm and the rear pawl arm are hinged to each other and are in a crossing shape, and the lower end of the front pawl arm and the lower end of the rear pawl arm are bent oppositely to form a clamping part; and the clamping device is used for adjusting the distance between the clamping parts in the front pawl arms and the rear pawl arms. The lifting appliance has the beneficial effects that the lifting appliance is simple, easy to operate and stable in lifting process, the quality problem caused by premature wear of a spindle cover is avoided through lifting under fixing of the pawls, and the lifting appliance can be suitable for multiple machine types.

The invention discloses a rolling and sliding bearing with an outer ring as a sleeve. The rolling and sliding bearing is characterized by consisting of the outer ring, cylindrical rollers, sliding blocks of which the number is the same as that of the cylindrical rollers, and an inner ring of which the outer rims of two ends are provided with fixed flanges, wherein the cylindrical rollers and the sliding blocks are positioned in a sliding chute formed between the outer ring and the inner ring; the number of the cylindrical rollers is equal to the number of the sliding blocks, and the cylindrical rollers and the sliding blocks are separated; the diameters of the cylindrical rollers are greater than or equal to the thicknesses of the sliding blocks in a radial direction of the bearing; the axial lengths of the cylindrical rollers are slightly less than the lengths of the sliding blocks in an axial direction of the bearing; and the cylindrical rollers and the sliding blocks are contacted with each other. The relative movement of the inner ring and the outer ring can be well restrained by the fixed flanges of the inner ring and the outer ring, so that the rolling and sliding bearing with the fixed flanges on the inner and outer rings is higher in axial positioning precision than the rolling and sliding bearing without the fixed flanges; furthermore, as the rolling and sliding bearing is a fixed whole before installation and use, the rolling and sliding bearing with the fixed flanges on the inner and outer rings is more convenient to install and is longer in service life than the rolling and sliding bearing without the fixed flanges during use.

The invention discloses a connecting structure for a suspended bracket arm. The connecting structure for the suspended bracket arm comprises an embedded piece, a bracket arm and a rubber body. The embedded piece (1) and the bracket arm (2) are separated from each other; the embedded piece (1) is provided with an H-shaped ladder type through hole; the bracket arm (2) is pressed and arranged on one end of the embedded piece (1); a bolt is matched with a threaded hole on the bracket arm (2) through the other end of the through hole on the embedded piece (1); and the embedded piece (1) is nested inside the rubber body (3), and a vulcanized layer (4) is arranged between the embedded piece (1) and the rubber body (3). The specially structured connecting structure for the suspended bracket arm has the split type structure of the bracket arm and the embedded piece, thereby meeting the use requirements of different bracket arm forms without any modification to a suspended cushion body, bringing about higher versatility to the cushion body, and avoiding the cost increase caused by the modification to a suspended mold. The suspended cushion body is formed for once; and the proper bracket arm structure can be flexibly designed according to different requirements on space.

A packing container (1) comprises a main body (4) for containing web-like plastic wrap (3), a cap (6), and a cutting tool for drawing out the plastic wrap properly and cutting it off. The container is characterized in that with a style of contacting against of near to the web-like plastic wrap contained in the main body (4) in a state before the front terminal (3a) is drawn out, the inner wall (7a) of the bottom surface (7) of the main body (4) has a protrusion part (22), thereby the relative movement of the web-like film (3R) in the main body (4) is prevented. Undertow of the plastic wrap drawn out from the main body (4) is prevented since the movement of web-like film (3R) in the main body (4) is reduced.

The invention discloses an oral apical elevator with a color temperature and brightness adjusting function, and relates to the field of oral apical elevator structures, the oral apical elevator comprises a holding handle, kidney-shaped avoiding holes are formed in the position, close to one end, of the holding handle, and irradiation assemblies are rotationally mounted on the sides, close to each other, of the kidney-shaped avoiding holes through rotating shafts; an irradiation hole is formed in the end, close to the kidney-shaped receding hole, of the holding handle, and the irradiation hole is communicated with the kidney-shaped receding hole. By arranging the irradiation assembly, the top end of the apical elevator body can be irradiated, a user can conveniently observe the apical elevator body better, use is convenient, meanwhile, the shell can rotate along the rotating shaft, the irradiation direction of an irradiation lamp can be finely adjusted, better irradiation can be conducted, meanwhile, a color temperature shifting button slides in a sliding groove, light color temperature adjustment is conducted, and a brightness knob is rotated, so that the illumination effect is improved. And the illumination brightness is adjusted, so that light adjustment can be better performed according to conditions, clearer illumination is performed, and observation and operation by a user are facilitated.

The invention relates to a flange joint. The flange joint comprises a first pipe joint and a second pipe joint; flange installation pieces are arranged on the peripheries of the two pipe joints respectively; the two flange installation pieces are fixedly connected through a fastener; and therefore, the radial or circumferential movement of the pipe joints is limited. Sealing grooves are formed inthe end portions of the two pipe joints respectively; and a gasket is arranged between the two sealing grooves to achieve the sealing of the pipe joints. The inner ring of each sealing groove is provided with a positioning ring, and the positioning rings abut against each other to prevent the sealing ring from directing contact with a medium circulating in the joints. The flange joint is simple instructure. The internal structures of the pipe joints are designed; the fixed connection of the pipe joints can be achieved just through the fastener; the relative movement of the pipe joint structures can be effectively limited; and the gasket can be effectively protected, and the service life of the gasket is prolonged.

The invention discloses a storage container for a refrigerator and the refrigerator. The storage container comprises a container body, wherein the container body comprises an accommodating cavity, a bottom wall and a front wall which is connected to the front side of the bottom wall and extends upwards, and the front wall comprises a front connecting flange protruding towards the interior of the accommodating cavity so as to be suitable for being clamped with a decorating piece extending at least along the front wall. The container body of the provided container can be used in cooperation withthe decorating piece and can also be used independently, and the compatibility of the container body of a manufacturer can be improved.

The invention provides a temperature sensing component, an air-conditioner indoor unit and an air-conditioner outdoor unit. The temperature sensing component comprises a temperature sensing probe, a signal line, a protection casing and a fixing structure, wherein one end of the signal line is connected to the temperature sensing probe, and the fixing structure is used for fixing the protection casing to the signal line. By the adoption of the technical scheme, the temperature sensing component can be effectively protected, and the accuracy of temperature detection can be ensured.

The invention relates to a disassembling and assembling structure and method of a brush disc. The disassembling and assembling structure comprises a brush disc frame, the brush disc frame is fixedly connected with bristles, the disassembling and assembling structure also comprises a fixing part fixedly connected to a motor output shaft, the fixing part comprises a plurality of fixing rods fixedly connected to the motor output shaft, the fixing rods are fixedly connected with fixing blocks, and the disassembling and assembling structure further comprises a connecting mechanism; the connecting mechanism comprises a plurality of connecting blocks arranged on the brush disc frame and a fastening assembly, the connecting blocks are provided with first connecting openings for clamping the fixing blocks, the fastening assembly comprises a fastening ring rotationally connected to the brush disc frame and a plurality of buckling strips fixedly connected to the fastening ring, the fastening ring is arranged on the connecting blocks in a sleeving mode, connecting holes matched with the buckling strips are formed in the two side edges, in the radial direction of the fastening ring, of each connecting block, and the brush disc frame is provided with a locking assembly enabling the fastening ring to rotate and be locked. The use stability of the brush disc can be effectively optimized.

The invention relates to a novel square battery pack aluminum-palladium welding jig which comprises a jig body, first fixing clamping seats and second fixing clamping seats, limiting grooves are formed in the periphery of the jig body, and one first fixing clamping seat and three second fixing clamping seats are installed in the four limiting grooves correspondingly. A welding groove for limiting aluminum palladium is formed in the jig main body; the first fixing clamping seat and the second fixing clamping seat can effectively limit relative movement of the battery pack and the jig, the lower surface of the jig is consistent with the positive and negative electrode surfaces of the battery pack, aluminum palladium movement is limited most effectively, the safety performance is high, and the insulating property is good; the material can prevent a welded battery pack from being damaged due to faults of a welding machine, the material is a flame-retardant material, the efficiency is high, the error-tolerant rate is high, and the conditions such as pseudo soldering in the welding process can be effectively prevented.