489results about How to "Plug firmly" patented technology

The invention discloses a left auricle occluding device. The left auricle occluding device comprises a sealing disc and an anchoring device, both of which are connected. The position where the anchoring device is matched with a left auricle is an anchoring net of a boneless structure. The overall anchoring device is of a boneless structure and formed by weaving of hyper-elastic metal wires or memory alloy metal wires. The far end of the anchoring device is in the shape of an opening. The near end of the anchoring device is collected and connected with the sealing disc to form a conical net. The far end of the anchoring device is opened and turned up towards the near end to form the anchoring net surrounding the conical net. The anchoring net is joined with the conical net by means of a circular transition area. The left auricle occluding device has following beneficial effects: force can be uniformly distributed to be anchored in the interior of the left auricle in order to eliminate concentration of local stress and can also be repeatedly released; and an opening part of the left auricle is effectively and reliably blocked.

The invention provides an intraductal intelligent plugging device, which comprises a main drive cylinder, a pressure head, an actuator disk, an extrusion bowl, at least two locking slide blocks, a ring spacer and a signal transceiver device, wherein, the main drive cylinder is provided with a cylinder body, a piston and a piston rod connected with the piston; the pressure head is connected with the end of the piston rod far away from piston; the actuator disk is connected with the cylinder body; the extrusion bowl is arranged between the pressure head and the actuator disk in a sliding way, and the extrusion bowl is provided with a tilted conical slide surface and an extrusion end face; each of the two locking slide blocks is connected with a subsidiary drive cylinder, and each subsidiary drive cylinder is fixed on the actuator disk; the bottom surface of the locking slide block is matched with the conical slide surface of the extrusion bowl in a sliding way, and the locking slide block performs the locking function in a radial expansion way when sliding upward along the conical slide surface; the ring spacer is arranged between the pressure head and the actuator disk, and is extruded by the extrusion end face of the extrusion bowl to perform the plugging function in a radial expansion way; the signal transceiver device is connected with the intraductal intelligent plugging device to receive control signals to drive the main drive cylinder.

The invention relates to a crown spring cage tyep pin and jack component and a jack thereof. the crown spring cage tyep jack comprises an inner sleeve, wherein an outer sleeve is sleeved outside the inner sleeve, a crown spring penetrates through the inner bore of the inner sleeve; two parallel elastic clamping strips are symmetrically arranged on the port part of the inner bore of the outer sleeve; and the distance between the two elastic clamping strips is less than the minimum internal diameter of the crown spring. The crown spring cage tyep pin and jack component comprises a pin and a jack, wherein the jack contains the inner sleeve; the outer sleeve is sleeved outside the inner sleeve, the crown spring penetrates through the inner bore of the inner sleeve; the two parallel elastic clamping strips are symmetrically arranged on the port part of the inner bore of the outer sleeve, the distance between the two elastic clamping strips is less than the internal diameter of the crown spring; and the pin contains a needle-like connection-peg, and the circumference surface of the needle-like connection-peg is provided with a clamping structure which fits with the two elastic clamping strips in a clamping manner. The elastic clamping strips are arranged on the port part of the jack; and during plugging, the clamping structure on the pin fits with the elastic clamping strips in the clamping manner, thus the reliable plugging of the pin and the jack can be realized and the pin is difficult to separate from the jack.

The invention provides an adjustable rotary oblique-cutting automatic grafting device and a method. The device comprises a worktable, a rack, and a scion clamping and conveying mechanism, a scion cutting mechanism, a stock perforating mechanism and a stock clamping and conveying mechanism which are sequentially arranged from the left to the right. The scion clamping and conveying mechanism comprises a scion clamping drive mechanism, a pneumatic scion claw and a scion chuck which are sequentially connected from the top to the bottom, wherein the scion clamping drive mechanism is connected onto the worktable through the rack. The scion cutting mechanism comprises a scion cutting drive mechanism, a cutter mechanism and a scion cutting positioning block, wherein the scion cutting drive mechanism is connected with the cutter mechanism, the scion cutting positioning block is arranged at the front side of the cutter mechanism, and a cutter guide groove and a positioning groove are arranged on the side wall of the scion cutting positioning block. The scion cutting drive mechanism, the scion cutting positioning block and the stock clamping and conveying mechanism are respectively fixed on the worktable through the rack. The adjustable rotary oblique-cutting automatic grafting device has the advantages of convenience in operation, simple process and the like.

This invention discloses a method for blocking cracks, dissolved caverns, cavities and pores in underground rock stratum. The formula comprises: a filtering substance, a solid and a carrying fluid. The filtering substance contains multiple fluid-flowing channels that run through the filtering substance. The solid is used for blocking the fluid-flowing channels. The carrying fluid is used for carrying the filtering substance and/or the solid in the openings of cracks, dissolved caverns, cavities and pores in underground rock stratum. When the carrying fluid carrying the filtering substance into the opening, a bridge is generated to partly block the opening while still supply fluid-flowing channels. The solid and/or solidifiable fluids are introduced into the fluid-flowing channels of the filtering substance, where the solid and/or solidifiable fluid accumulate and form a sealing structure. With the formula, the openings at the wellbore section can be sealed.

The invention relates to supporting and construction method of a steel sheet pile under soft foundation of a high flow plastic deep layer, and belongs to the technical field of building construction.The supporting and construction method of the steel sheet pile under the soft foundation of the high flow plastic deep layer comprises the steps of construction preparation, construction of guiding purlins, injection of a steel sheet pile, excavation and water drainage, foundation trench interior construction and removing of the steel sheet pile. The supporting and construction method of the steelsheet pile under the soft foundation of the high flow plastic deep layer is simple and easy to implement during the construction process, is easy to popularize, and can effectively stop water and prevent piping, and almost all supporting and protecting facilities can be reused after being disassembled.

The invention relates to a busway jack box with high safety performance. The jack box comprises a box body, wherein a jack seat, pins and a support positioning mechanism are arranged at the bottom of the box body; a locking mechanism is respectively arranged on two sides of the box body; the jack seat is fixed at the bottom of the box body through a fixed seat of the jack seat, and the pins can run through horizontal fixed grooves; a jack seat gasket is arranged at the bottom of the support positioning mechanism, and is arranged around the inner wall of the horizontal fixed groove, and is fixedly connected with the fixed seat of the jack seat through screws, so that the jack box can be jacked accurately, conveniently and quickly, and the safety and reliability of hot plugging can be ensured.

The oil pumping pipe blocking device of marmem is for blocking leakage in oil pumping pipe mainly and may be used also in other deep pipes. The present invention features that the blocking device is plum pipe made of marmem and in the thickness of 1-5 mm and diameter of 90-160mm at normal temperature and 100-200 mm after being heated; and that the blocking device together with one heating unit is fed to the leakage site inside the oil pumping pipe and heated through remote control to temperature up to 300 deg c for restoring its diameter and interference fitting to the leakage oil pumping pipe. The marmem of different alloy lines is produced through vacuum or atmospheric smelting and casting, fine machining into the marmem pipe, cooling in dry ice or liquid nitrogen and molding into plum pipe. The present invention has reliable blocking, convenient operation and low cost.

The invention relates to a case function module test fixture. The test fixture comprises a fixture body. The fixture body is provided with a slot for a to-be-tested function module to be inserted into. A guide rail used for being in guide fit with a guide structure on the to-be-tested function module is arranged on the slot. The fixture body is further provided with a test connector used for being in insertion fit with a module connector on the to-be-tested function module along the guide direction of the guide rail, and a locking structure used for locking the to-be-tested function module inserted in place onto the fixture body. The test connector is connected with a signal lead-out terminal for leading out a test signal. The fixture can simulate the situation in which the to-be-tested function module is inserted into a slot of a case, and facilitates insertion fit between the test connector and the module connector. In addition, the fixture body is further provided with the locking structure used for locking the to-be-tested function module inserted in place onto the fixture body, so that the to-be-tested function module inserted in place can be firmly fixed on the test fixture, and dynamical environment test can be conducted.

The invention discloses a pipeline interior rapid self-locking blockage device and belongs to the technical field of pipeline blockage. The pipeline interior rapid self-locking blockage device is reliable in blockage and can achieve flow guiding. According to the adopted technical scheme, a blockage unit is an inflatable blockage device and is provided with an axial through hole; a traction unit is of a structure with an electric control valve mounted on a hollow pipe, and an outer thread is formed on the hollow pipe; a tensioning unit comprises the structure that axial through holes are formed in a fixed seat and a movable seat correspondingly, the fixed seat and the movable seat are connected through a spring, one ends of first supporting rods are hinged to the fixed seat, antiskid blocks are hinged to the other ends of the first supporting rods, one ends of second supporting rods are hinged to the movable seat, and the other ends of the second supporting rods are hinged to the middles of the first supporting rods; and the hollow pipe penetrates through the tensioning unit and then is fixed to the blockage unit together, a first gear and a sleeve are mounted on the hollow pipe ina sleeving mode, and a second gear is fixed to an output shaft of a motor and engaged with the first gear. The pipeline interior rapid self-locking blockage device is used for pipeline blockage.

The invention relates to a convenient and fast assembled goods shelf. The convenient and fast assembled goods shelf comprises a first goods shelf front stand column, a second goods shelf front stand column, a first goods shelf rear stand column, a second goods shelf rear stand column, a first cross beam connected between the first goods shelf front stand column and the first goods shelf rear stand column through a connecting pin, a second cross beam connected between the second goods shelf front stand column and the second goods shelf rear stand column through a connecting pin, a front connecting piece, a rear connecting piece and a goods shelf partition plate, wherein the front connecting piece and the rear connecting piece are connected between the first cross beam and the second cross beam through bolts, and the goods shelf partition plate is inserted between the front connecting piece and the rear connecting piece. Due to the mode, the convenient and fast assembled goods shelf is convenient to assemble and disassemble, supporting strength can also be improved, and manufacturing cost is saved.

The invention relates to a positioning and locking device for blind plug connectors. The device is designed to position and lock a machine cabinet and a machine case. The machine cabinet is of a U shape and the inner sides at its two opening ends are provided respectively with a first guide rail and a second guide rail, and the inner side of its closed end is provided with a pin guiding mechanism and a plug. The two exterior sides at one end of the opening end of the machine case facing the machine cabinet is provided respectively with a first sliding block and a second sliding block wherein the first sliding block is capable of sliding along the first guide rail and the second sliding block is capable of sliding along the second guide rail. One end of the closed end of the machine cabinet facing the machine case is provided with a guide sleeve mechanism and a plug holder. The pin guiding mechanism can be adapted and mounted inside the guide sleeve mechanism. The plug can be adapted and mounted inside the plug holder. According to the technical schemes of the invention, it is not only possible to realize the successful blind plugging of connector but also possible to enable that the plug of the connector and the plug holder are well positioned and locked to be adaptive to an externally shaking environment.

A compressed water pump, including a T-type single sweep tee 10 with a water inlet, the first water outlet 11 and the second water outlet 12. There are a reducer 20 in 11 and a straight tube 30 in 12 and in the 20 and 30 there are closing plugs 24 & 32 and spring 25 & 33 . 24 & 25 can traverse move in the reducer and open or cap the water entryway. When water pressure is lower than pressure of 25, the inner water tube in the reducer is open; when water pressure is lower than pressure of 33, the inner water tube in the straight tube is closed; when water pressure is lower than pressure of two springs, water flows outlet from the opening reducer; when water pressure is higher than pressure of two springs, water flows outlet from the straight tube. This invention can control which water outlet open by changing water pressure.

The invention relates to a pipeline plugging device. The pipeline plugging device comprises a supporting rod, an expansion ring and a sealing hood, wherein the right end of the supporting rod is provided with a fixed ring, and the middle portion of the supporting rod is provided with a sliding ring; the expansion ring comprises first arc-shaped parts and second arc-shaped parts which are alternately distributed in the circumferential direction, the first arc-shaped parts are provided with guiding portions, the side faces, corresponding to the two ends of the first arc-shaped parts, of the guiding portions are guiding faces, the guiding faces are provided with sliding grooves, the two side walls of the sliding grooves are provided with guiding holes, the guiding holes in the adjacent firstarc-shaped parts form shapes like a Chinese character 'ba', the second arc-shaped parts are provided with support lugs, the support lugs are correspondingly hinged to the fixed ring and the sliding ring through first connection rods and second connection rods, the two ends of the second arc-shaped parts are provided with sliding blocks located inside the sliding grooves correspondingly, and the two sides of the sliding blocks are provided with guiding columns located inside the guiding holes correspondingly; and the sealing hood is sleeved on the expansion ring from right to left and is fixedly connected with the first arc-shaped parts correspondingly. The pipeline plugging device has the advantages of being simple in structure, convenient to operate and control, reliable in plugging and high in adaptability, equal-diameter holes do not need to be arranged in a pipeline, and the operating efficiency is improved.

The invention relates to a valve device, in particular to a tap water cut-off leakage-proof protection valve device, which is assembled at the water supply end of a tap water pipe net and plays a role in water cut-off leakage-proof protection. The tap water cut-off leakage-proof protection valve device comprises a leakage-proof protection valve (2) and a reset starting valve (6) connected in parallel. The leakage-proof protection valve (2) is provided with a float chamber (4); a water inlet and a water outlet are formed at the upper and lower ends of the float chamber (4); a floating plug (3) is arranged inside the float chamber (4); and the water outlet is completely closed when the floating plug (3) is attached to the water outlet of the lower end of the float chamber (4). The reset starting valve (6) is a switch valve used for opening the leakage-proof protection valve (2) after the water supply is recovered. The tap water cut-off leakage-proof protection valve device implements plugging by using the pressure of the tap water acting on the floating plug, realizes the reset starting of the leakage-proof protection valve by using the water pressure and the floating force of the floating plug in the water, and has simple structure and reliable plugging. Therefore, the leakage-proof water tightness of the whole device is easily guaranteed, and the reset operation is more convenient.

The invention discloses an improved left auricle occluder. The improved left auricle occluder comprises a sealing disc and an anchoring device, wherein the sealing disc is connected with the anchoring device; at least two flow stopping membranes are arranged in the sealing disc; a portion, which is matched with a left auricle, of the anchoring device is an anchoring net; and the anchoring net is a boneless structure. The whole anchoring device is a boneless structure. The anchoring device is knitted by metal wires, a far end of the anchoring device is in the shape of an opening, and a near end of the anchoring device is tucked, is connected with the sealing disc and is in the shape of a conical net; the far end of the anchoring device is opened and turned up towards the near end to form the anchoring net; and the anchoring net surrounds the conical net. By the improved left auricle occluder, a left auricle opening can be occluded in a multi-layered manner, force is uniformly distributed in the left auricle during anchoring, local stress concentration is eliminated, repeated release can be implemented, and the left auricle opening can be occluded effectively and reliably.