15results about How to "Small movement" patented technology

The present application provides a test device for testing the impermeability of concrete, which relates to the technical field of testing the impermeability of concrete, including a test table detachably connected with an assembly barrel for carrying the test concrete, the assembly barrel having a first placement groove, the first placement groove being sleeved with a first sealing sleeve, the assembly barrel having a second placement groove at one end away from the first placement groove, the second placement groove being slidably connected with a plurality of locking baffles, the surface of the locking baffle being sleeved with a second sealing sleeve, the locking baffle moving toward the test concrete when the assembly barrel abuts, and pushing the second sealing sleeve. The present application can reduce the probability of the sealing sleeve sleeved on the concrete specimen being offset when testing the concrete specimen.

The invention relates to the technical field of drilling machine transportation, and discloses a drilling machine conveying system which comprises a rotary speed reducer, a rotary arm, a turnover device, a clamping device and a drill rod box which are sequentially connected, and further comprises a swing mechanism and a conveying device, and the swing mechanism is arranged between the turnover device and the clamping device; after the rotary speed reducer and the turnover device are matched to transfer the drill rod to the position above the rack and keep parallel to the rack, the swing mechanism swings the clamping device to swing the drill rod into the clamping device, the rack is provided with a first proximity switch, a second proximity switch and a third proximity switch, the turnover device is provided with a signaling block, and the rotary arm is provided with a receiver. The transporting device is arranged at the upper end of the drill rod box, so that the overall width of the drilling machine is reduced, the swinging device is matched to enable the drill rod clamped by the clamping device to swing into the clamping device from the upper portion of the rack, the moving distance of the drill rod in the axis direction of the rack is reduced, and the drilling machine can work in the narrow roadway environment of an underground coal mine.

The utility model discloses a noise reduction device of an energy-saving generator set, which comprises a generator set shell, an air outlet pipe is arranged in the generator set shell, one end of the air outlet pipe is communicated with an air outlet position of the generator set, the other end of the air outlet pipe is communicated with the outside, the air outlet pipe comprises a storage shell and a side plate, and the side plate is arranged in the storage shell. The sound-absorbing cotton frames provided with the sound-absorbing cotton are placed between the upper storage groove and the lower storage groove, the fixing rods penetrate through the positioning holes and the penetrating holes, the fixing rods are fixed to the storage shell, the multiple sound-absorbing cotton frames can be conveniently installed, and when the generator set generates noise, the sound-absorbing cotton frames can be fixed to the storage shell through the fixing rods. The sound-absorbing cotton absorbs a part of noise, meanwhile, a certain amount of low-frequency noise impacts the sound-absorbing cotton frame and drives the sound-absorbing cotton frame to move, the moving amplitude of the sound-absorbing cotton frame is reduced under the action of the buffer springs on the two sides of the fixing plate, a part of noise can be absorbed, and meanwhile the vibration noise of the sound-absorbing cotton frame is reduced.

The utility model discloses a movable support for a directly-buried steam pipeline, which belongs to the technical field of installation of directly-buried steam insulating pipes and comprises a supporting seat, a sliding clamping component and an extrusion deformation component. The supporting seat has corresponding supporting force; a supporting platform is formed at the upper end and has corresponding supporting force; the sliding clamping assembly comprises a moving block which is driven by deformation force of the pipeline and conducts corresponding displacement on the supporting platform. The clamping piece is fixed on the moving block and is used for carrying out corresponding supporting and clamping operation; the extrusion deformation assembly is arranged on the edge of the supporting platform, surrounds the periphery of the sliding block and correspondingly deforms when collided by the moving block, the influence of radial movement on the supporting base and abrasion between the moving block and the supporting platform are reduced, and normal operation of the steam pipeline is guaranteed.

This utility model discloses a high-strength wedge-shaped wire clamp, which relates to the field of high-voltage power grids. The key technical points of the solution are: it includes a wedge-shaped wire clamp body, a connecting seat at the end of the wedge-shaped wire clamp body, the connecting seats being symmetrically arranged, a through groove on the side of the connecting seat, the through groove being connected to a through slot located inside the connecting seat, a T-shaped fixing tube being inserted inside the through slot, a metal cable being pressed and inserted inside the T-shaped fixing tube, a hanging plate being snapped onto the end of the metal cable away from the two T-shaped fixing tubes, a sleeve being screwed to the top of the connecting seat, a limiting member being provided on the side of the sleeve for sliding along the axial direction of the sleeve, and a metal cable protective member being fixed inside the sleeve, which achieves the effect of preventing the metal cable connection from loosening and improving the protection of the protruding end of the metal cable.

The utility model provides a transfer device for operation, which belongs to the technical field of nursing auxiliary equipment and comprises a supporting bed board, a hydraulic lifting frame fixedly mounted at the top of the supporting bed board, an adjusting bed board arranged at the top of the hydraulic lifting frame, a moving groove formed in one side of the adjusting bed board, and a supporting shovel board slidably connected in the moving groove. An upper motor frame is arranged at the top of the other side of the adjusting bed plate, a lower motor frame is arranged at the bottom of the other side of the adjusting bed plate, an upper winding motor is arranged on one side of the top of the upper motor frame, a lower winding motor is arranged on one side of the bottom of the lower motor frame, the output ends of the upper winding motor and the lower winding motor are fixedly connected with a winding shaft, and a conveying belt is wound outside the winding shaft and the supporting shovel plate; according to the transferring device for the operation, the lower winding motor conveys the conveying belt, at the moment, after the supporting shovel plate is extended and flatly placed on a sickbed, the upper winding motor rotates the winding shaft, the lower winding motor is matched with the upper winding motor to drive the conveying belt, a patient is transferred to a new sickbed, and the moving amplitude in the transferring process is reduced.

The utility model relates to hydraulic pressure tight equipment technical field, concretely relates to high wear -resisting brick hydraulic pressure tight device, include: base, the base bottom is provided with four rectangular distribution's brake wheel, the support cylinder for high wear -resisting brick tight is set up in the base top, adjusting mechanism, including fixed connection in the base top's U type seat, the support cylinder is installed with the connecting block in U type seat one side, the support cylinder outside swing joint has the slope through the pin shaft, the utility model discloses the setting, when carrying out the tight operation, through the rotation second outer thread pipe, make it move in the second inner thread hole, thereby can adjust the tight force of tight device, and the second outer thread pipe moves amplitude little when rotating, thereby make the adjustment of tight force more accurate, and can adjust the inclination angle of support cylinder, make this hydraulic pressure tight device can carry out tight operation to different positions, and the suitability is better.

The utility model provides a new energy automobile metal cable protection joint, and relates to the technical field of cable joints. The force unloading assembly is fixedly connected to the outer surface of the main connector. According to the utility model, when the cable joint is used for connecting the cables, the state of the two cables is that the butt joint cable core position is clamped at the inner side of the main joint, and the position close to the outer side of the butt joint position is clamped and fixed at the inner side of the auxiliary joint; the sliding rod can freely slide on the inner wall of the sliding sleeve, so that the dragging force borne by the cable on one side can be conducted to the auxiliary connector on the other side through connection of the sliding rod, the cable on the other side is also borne by the dragging force, and the force unloading effect can be achieved on the two cables at the moment; safety accidents caused by the fact that the joint position is stressed and loosened when the cable on one side is dragged and pulled are avoided, and a good safety protection effect is achieved on the cable of the new energy automobile.

The present invention relates to a virtual reality object manipulation method and system based on a variable virtual interaction area, and the method comprises: S1: constructing a hand interaction hemisphere area H, which is an effective area for a user to control a handle controller T; S2: constructing a variable virtual interaction area V of a virtual hand O: the variable virtual interaction area is an active area of ​​a user's virtual hand, and the user performs remote operations on a virtual object through the virtual hand; S3: constructing an interaction heat body: the interaction heat body is a three-dimensional voxel array, which is used to record the interaction information of the user in a virtual space in real time; S4: determining whether the operation stage needs to be converted according to the interaction heat body, and updating the parameters of the variable virtual interaction area; S5: obtaining the relative position of the handle controller T in H, and then mapping the relative position to V, and calculating the world position of the virtual hand O.

The present invention pertains to a crank rotation drive mechanism provided with left and right pedals that alternately apply external forces to a pair of left and right crank arms attached to a crankshaft, and an output unit that rotates integrally with the crankshaft. [Problem] To provide a crank rotation drive mechanism that can be used for a long period of time without requiring a large effort. The invention provides a pedal displacement type crank rotation driving mechanism (Z). The present invention is provided with: a pair of left and right crank arms CA and a crank rotation shaft CX2 fixed to a crank shaft CX1 axially supported by a frame F and the like; a pair of left and right swing arms A axially supported by a fixed swing fulcrum shaft A4 at a position away from the crank shaft CX1; and a first slider S1 axially supported by the crank rotation shaft CX2 and reciprocatingly moving in the longitudinal direction of the swing arms A. A second slider (S2) that is in contact with or not in contact with the first slider (S1) and intermittently reciprocates; and a pedal (P) that is attached to a second slider front block (S21) and that rotates a crankshaft (CX1) while drawing a substantially elliptical trajectory by swinging a swinging arm (A). The pedal-shifting-type crank rotation drive mechanism (Z) provides a rotation output to an output unit (5). (The main purpose of the invention) the invention is not only suitable for common bicycles, but also suitable for weak people or commercial tricycles, fitness equipment, labor-saving equipment, devices and the like.

The utility model discloses a goods shelf with an anti-falling structure, which comprises a base and a support rod, and is characterized in that shock absorption components are arranged on the left side and the right side below the base, the shock absorption components are welded with the base, the support rod is arranged above the base, a goods plate is connected outside the support rod in a sliding manner, a fence is arranged above the goods plate, and the fence is connected with the shock absorption components in a sliding manner. A storage barrel is installed at the front end of the fence, a clockwork spring is installed in the storage barrel, a reel is rotationally connected to the interior of the clockwork spring, the right side of the reel is connected with blocking cloth, the blocking cloth is hinged to the reel, a hook is installed on the right side of the blocking cloth, and the hook is hinged to the blocking cloth. Compared with an existing goods shelf, the goods shelf with the anti-falling structure has the advantages that the blocking cloth is pulled out of the storage barrel, the free end of the goods shelf is hung on the hook, the spring is stressed and tightened when the blocking cloth is pulled out, the blocking cloth is pulled through the reel, the blocking cloth can be automatically rolled back conveniently when the goods shelf is idle, meat products on the goods plate are surrounded by the blocking cloth and the enclosure, and the meat products are prevented from falling off from the goods shelf.

The utility model discloses an old age rehabilitation armpit stick convenient to adjust, including support leg, the top of support leg is connected with L type pole through first length adjusting structure, the horizontal part end of L type pole is provided with inclined pole, the top of inclined pole is connected with armpit support pole through second length adjusting structure, the bottom of support leg is provided with foot pad, and the horizontal part of L type pole is provided with handle. The utility model discloses through the cooperation between support leg, L type pole, inclined pole and armpit support pole, has simplified the structure of existing armpit stick, makes this armpit stick more portable, more convenient to use, and than traditional armpit stick beautiful, more in line with the psychology and aesthetic appreciation of old people, and safe and reliable.

The invention discloses a lead frame of a photoelectric coupler, the photoelectric coupler and a manufacturing method, the lead frame comprises a first lead bracket and a second lead bracket, and a plurality of first connecting strips and second connecting strips which are arranged in parallel and alternately are arranged between the first lead bracket and the second lead bracket; a plurality of first frame units are arranged on the first connecting strip, and each first frame unit comprises a first frame subunit and a second frame subunit; the first lead support is provided with a plurality of first notches, the second lead support is provided with a plurality of second notches, the upper ends of the first connecting strips are connected with the bottom edges of the first notches, the lower ends of the first connecting strips are connected with the bottom edges of the second notches, and the upper ends and the lower ends of the first connecting strips are provided with first welding pins. And second welding pins are arranged at the bottom end of the first notch and the top end of the second notch. The single-chip lead frame is adopted, the welding pins capable of being welded are arranged, the lead frame is high in unit area utilization rate, high in density and high in strength, the cost is reduced, and meanwhile the reliability of a product is improved.