19results about How to "Quick closure" patented technology

The invention provides a tunnel primary support process for railway engineering, and relates to the technical field of tunnel primary support. The tunnel primary support process of the railway engineering comprises the following steps: immediately carrying out danger elimination work after tunnel excavation, then carrying out primary concrete spraying operation, carrying out mortar anchor rod or hollow anchor rod construction, laying a reinforcing mesh, carrying out steel frame construction, advanced small pipe construction, anchor rod construction and advanced pipe shed construction, immediately carrying out danger elimination after tunnel excavation, and carrying out primary concrete spraying. The rock mass can be quickly closed, relaxation deformation of the rock mass is prevented, early deformation of surrounding rock is effectively controlled, stability of the surrounding rock is enhanced, safety guarantee is provided for follow-up construction, the reinforcing mesh is laid and firmly connected with the anchor rod and the steel frame, the integrity of the supporting structure is further enhanced, and the impact resistance of the supporting structure is improved. Through auxiliary construction measures such as advanced small guide pipes and advanced pipe sheds, surrounding rock is effectively reinforced, the strength and stability of the surrounding rock are improved, the construction risk is reduced, and it is ensured that tunnel construction smoothly passes through unfavorable geological sections.

The invention discloses a casting pressure testing system and device, belongs to the field of casting detection, and solves the problems that an existing casting pressure testing device cannot mark damaged parts in a casting and cannot guarantee safety in the detection process, and the casting pressure testing system comprises a testing bottom plate, a supporting column, an upper top plate, an injection molding assembly and a lifting connecting rod. The protective cover plate can quickly and stably close and shield an opening in the periphery of the equipment, the situation that a detected casting in the equipment is broken due to too large pressure, and fragment sputtering is caused is prevented, so that the safety of the equipment during operation is guaranteed, after the protective cover plate is closed, workers can be effectively prevented from making contact with the casting in the detection process, and the safety of the equipment is improved. The installation of the detection pad is matched with the liquid in the casting, so that the broken parts of the casting can be marked, once the broken parts of a plurality of castings are the same, it is indicated that equipment for casting the casting is misplaced, workers can check errors in time, and the stability and safety of the equipment during operation are guaranteed.

The utility model relates to the technical field of medical instruments, and discloses a sampling detection device. The sampling detection device comprises a shell, the upper end of the shell is slidably connected with a suction assembly, the lower part of the shell is rotatably connected with a rotating ring, the interior of the rotating ring is fixedly connected with a fixed bead, the exterior of the fixed bead is slidably connected with a liquid inlet pipe, and the interior of the rotating ring is slidably connected with a rotation limiting block. A square block is fixedly connected to the side end of the rotation limiting block, the side end of the rotation limiting block is elastically connected to the interior of the bottom end of the shell through a first spring, a gear assembly is fixedly connected to the bottom of the shell, and a clamping assembly is clamped to the side end of the lower portion of the shell. According to the utility model, after the rotation limiting block and the gear block are pulled out for blocking, the liquid inlet pipe cannot slide back, the rotating ring is rotated, and the rotating ring drives the fixed bead to enable the liquid inlet pipe to extend out so as to adapt to containers with different lengths, so that the practicability and the simplicity during sampling are improved.

This utility model provides a steel frame bridge with a liftable emergency device, including a steel frame bridge body (1). The feature is that: emergency devices (2) are respectively provided on the bottom of both sides of the steel frame bridge body (1), and protective components (3) are fixed on the outside of the emergency devices (2). The protective components (3) can move up and down synchronously with the emergency devices (2) relative to the steel frame bridge body (1). By providing emergency devices and protective components, the road on the steel frame bridge body can be quickly closed and passing vehicles and pedestrians can be intercepted through the synchronous up and down movement of the emergency devices and protective components. No on-site construction is required. The emergency devices and protective components are respectively raised and lowered in accordance with the rectangular holes and circular holes on the steel frame bridge body, which effectively improves adaptability.

The present application discloses a container, which comprises a box body, an upper top door and a lower top door, the top of the box body is provided with a top opening, the upper top door is arranged on the box body and is movable along the length direction of the box body between an open position and a closed position, the lower top door is arranged on the box body and is movable along the length direction between an open position and a closed position, the lower top door is located below the upper top door, the upper top door in the closed position and the lower top door in the closed position are arranged in succession in the length direction and cover the whole top opening, and the movement of the lower top door and the movement of the upper top door are independent of each other. According to the container of the present application, a sliding double-open top door can be designed on the top of the container, which facilitates the filling and / or removal of materials such as garbage from the top, and the design of the double-open top door can quickly and conveniently open any top door to fill and / or remove materials, and quickly and conveniently close the box body to prevent leakage during transportation and reduce pollution.

The utility model relates to the production technology field of preserved meat, concretely is the rubbing machine with prevent splashing structure, including fixed base, the upper end portion sliding installation of fixed base has rubbing box body, the inside rotation of rubbing box body is installed with stirring rod, the upper end portion sliding installation of rubbing box body has the top cover, the upper end portion sliding installation of top cover has the storage tank, the side end portion fixed mounting of rubbing box body has the fixed plate. The improved rubbing machine drives the threaded rotating lever rotation cooperation upper fixed plate limiting through the second drive motor starting, thereby drives the connecting sleeve ring to move up and down, reaches the device when using can close inside the device quickly, thereby reduces the splashing effect when rubbing, improves device use sanitary degree, and the device uses through the nozzle to export new edible salt constantly cooperation stirring rod agitating and rubbing box body shaking when, thereby makes the preserved meat rubbing in the device more fully, further improves device efficiency.

The utility model discloses an environmental protection type zip fastener bag of recycling, the inside of PCR recyclable bag surface layer is installed with PCR recyclable bag inner layer, the inner wall of PCR recyclable bag inner layer is installed with waterproof membrane closely, the bottom of the inside of PCR recyclable bag surface layer is installed with bottom reinforcing cloth that prevents shedding, the both sides of the top of bottom reinforcing cloth that prevents shedding are connected with reinforcing cloth strip equally, the top of PCR recyclable bag surface layer is sewed and is installed with fastening edge, the utility model discloses utilize waterproof membrane to the bag inside to be wrapped, has improved the waterproof performance of bag whole, prevents the rainwater and leads to its internal article damp or liquid to flow from the bag inside, simultaneously utilizes bottom reinforcing cloth that prevents shedding to the bottom of bag played the role of reinforcing and preventing shedding, prevents the bottom of bag easy breakage and shedding and leads to the internal loading article to fall, and reinforcing cloth strip and fastening edge reinforce bottom reinforcing cloth that prevents shedding, have improved its and the connectivity of bag itself, prevent its pressure and fall off.

The present invention relates to the technical field of pressure-sensitive adhesive preparation, specifically to a pressure-sensitive adhesive preparation device and process suitable for adhesive tapes, comprising a preparation box, a control panel fixedly connected to the left surface of the preparation box, a first reaction cylinder arranged inside the preparation box, a feed cover arranged at the top of the first reaction cylinder, a second delivery pipe arranged inside the first reaction cylinder on the right surface of the first reaction cylinder, and an electric push rod, a top plate arranged at the top of the electric push rod. The present invention can disperse the initiator sprayed through the feed pipe to the surface of the solution inside the second reaction cylinder by a counter-rotating beating ring when the lower turntable and the upper turntable rotate in opposite directions, and the second reaction cylinder is also stirred evenly, so that the internal solution fully reacts with the initiator, thereby solving the problem of uneven molecular weight in the past.

The utility model belongs to the technical field of furnace door sealing device, and disclose an automatic sealing device of furnace door of industrial furnace, including furnace body, the upper surface rotationally connected with furnace door of furnace body, the lower surface fixedly connected with sealing door of furnace door, the upper surface fixedly connected with mounting seat of furnace door, the upper surface fixedly connected with air pump of mounting seat, the output fixedly connected with conveying pipe of air pump, the one end fixedly connected with air bag of conveying pipe away from air pump, the lower surface fixedly connected with motor of mounting plate, the output fixedly connected with rotating shaft of motor, the lower surface fixedly connected with rotating rod of rotating shaft, the one end fixedly connected with pressing plate of rotating rod away from rotating shaft, cooperate through sealing door, mounting seat, air pump, conveying pipe and air bag, realize sealing effect through air pump air bag, can be filled with air and discharged rapidly, realize the process of quick automation's closing and opening, air bag can realize even coating furnace door edge after inflating, form the close seal, guarantee the sealing property of high temperature environment in the furnace.

This utility model provides an intermittent aeration MBR reactor, relating to the technical field of aeration devices. The intermittent aeration MBR reactor includes an aeration tank containing a horizontal pipe. Multiple aeration pipes are connected to the upper end of the horizontal pipe. Each aeration pipe contains a self-sealing assembly. The self-sealing assembly includes a fixing ring fixedly connected to the inner wall of the aeration pipe. A sealing block is slidably connected within the fixing ring. A circular block is fixedly connected to the upper end of the sealing block. The circular block is elastically connected to the adjacent side of the fixing ring via multiple springs. Multiple vertical rods are fixedly connected to the lower end of the circular block, and all vertical rods penetrate the fixing ring. The intermittent aeration MBR reactor provided by this utility model has the advantages of compact structure, strong self-cleaning ability, and flexible adjustment.

The invention provides a liquid nitrogen-based food fresh-keeping system, which belongs to the technical field of liquid nitrogen instant freezers, and comprises a fresh-keeping mechanism, the fresh-keeping mechanism comprises a cabinet body and a tank body, the cabinet body is connected with a protective door through a rotating shaft, a locking part for sealing the cabinet body is arranged on the side wall of the cabinet body, a partition plate is arranged in the cabinet body, and a fan and an air outlet are arranged on the partition plate; a fresh-keeping part for guiding atomized liquid nitrogen to flow is arranged on the partition plate, and a supporting part is arranged in the cabinet body; the adjusting mechanism comprises a penetrating opening formed in the safety part, a sealing part is arranged in the penetrating opening, a storage part and a limiting part are arranged on the supporting part, and an adjusting part is arranged on the limiting part; the auxiliary mechanism comprises a first fixing sleeve and a second fixing sleeve which are arranged in the cabinet body, a pushing part is arranged on the first fixing sleeve, a lifting part is arranged on the second fixing sleeve, and a guiding part is arranged on the lifting part. Through the arrangement of the fresh-keeping mechanism, the adjusting mechanism and the auxiliary mechanism, products in the cabinet body are quickly frozen accurately.

The utility model relates to the technical field of connectors for pipeline valves, and discloses a disconnection self-sealing split type copper connector for a pipeline valve with a leakage-proof function, which comprises a supporting column, a connecting column is slidably connected in the supporting column, and a first connecting rod is rotatably connected to the outer wall of the connecting column. The outer wall of the first connecting rod is rotationally connected with an expansion rod, the outer wall of the expansion rod is fixedly connected with a plugging sleeve, the outer wall of the expansion rod is rotationally connected with a second connecting rod, the outer wall of the second connecting rod is rotationally connected to the outer wall of the supporting column, and the outer wall of the supporting column is provided with a conveying assembly. The conveying assembly is used for assisting in fixing the supporting column. According to the rapid sealing device, the first connecting rod is driven to rotate through the connecting column, then the first connecting rod drives the second connecting rod to rotate through the expansion rod, and then the expansion rod can control the sealing sleeve to contract or expand, so that the effect that the conveying pipeline can be rapidly sealed when the conveying pipeline is disconnected is achieved; and the overall working efficiency is improved.

The utility model discloses a photovoltaic panel abutted seam sealing clamping piece, and relates to the technical field of photovoltaic panel installation. The device structurally comprises a bearing clamping piece, a rubber strip and a clamping clamping piece. The bearing clamping piece comprises a rectangular pipe body; two partition vertical plates arranged in the length direction of the rectangular pipe body are integrally formed on the upper surface of the rectangular pipe body, and the two partition vertical plates are symmetrically arranged relative to the split of the rectangular pipe body. The rubber strip is clamped on the photovoltaic panel frame; the clamping piece comprises a horizontal pressing plate; a clamping strip arranged in the length direction is integrally formed in the middle of the lower surface of the horizontal pressing plate. According to the utility model, the protruding parts are arranged on the opposite side surfaces of the clamping strips, and the groove parts matched with the protruding parts are arranged on the opposite inner walls of the separation vertical plates, so that nail-free mounting and clamping of the photovoltaic panel between the bearing clamping piece and the clamping clamping piece are realized, and the mounting stability and convenience are improved; the rubber strip is clamped on the frame of the photovoltaic panel, thereby achieving the sealing and waterproof effects, and improving the sealing performance of clamping and closing the longitudinal gap of the photovoltaic panel at the same time.

The utility model belongs to the field of grouting hole sealing, particularly relates to a drilling and grouting hole sealing sleeve device, and aims to solve the problems that the existing device cannot realize quick disassembly and assembly connection between the device and a grouting pipe, the working efficiency is reduced, and the manpower and material resource cost is increased, and the following scheme is provided: the drilling and grouting hole sealing sleeve device comprises a sleeve main body, the top end of the sleeve main body is detachably communicated with a three-way pipe, the top end of the three-way pipe is fixedly communicated with a pressure gauge, a slurry outlet is formed in the bottom end of the sleeve main body, and a limiting ring is fixedly arranged at the position, above the slurry outlet, of the outer portion of the sleeve main body; and the connecting assembly is arranged on the three-way pipe and used for connecting the device with a grouting pipe. Due to the arrangement of the connecting assembly, quick disassembly and assembly connection between the device and the grouting pipe is achieved, time needed for connecting the grouting pipe is shortened, working efficiency is improved, and therefore manpower and material resource cost is reduced.

This invention discloses a three-dimensional adjustment device for railway crossing slabs and a construction method for treating crossing defects. The three-dimensional adjustment device (1) of this invention includes a cross-track bridge (11) and two lifting modules (12) installed on the cross-track bridge. The cross-track bridge has a crossbeam (111) and two support columns (112). The lifting modules include a fixed base (121), a rotating handle (123), and a lifting head (124). The fixed base is assembled on the crossbeam of the cross-track bridge, and a vertical screw mechanism is provided on the fixed base. The rotating handle is fixedly installed at the upper end of the screw (122), and the lifting head is rotatably mounted at the lower end of the screw, allowing the lifting head to rotate relative to the screw. Using this three-dimensional adjustment device in the construction method of this invention can significantly improve the efficiency of crossing defect treatment construction.

This utility model provides a fixture for testing the airtightness of irregular flanges, including a support platform, with a base fixedly connected to the surface of the support platform; a piston rod fixedly connected to the center of the bottom surface of the base, and the piston rod slidably connected inside a cylinder; a fixing plate fixedly connected to the top of the cylinder; multiple grippers rotatably connected to the surface of the fixing plate; multiple clamping plates installed on the side walls of the base, with the grippers slidably connected to the side walls of the clamping plates; a rubber sleeve installed on the surface of the base, with multiple positioning pins installed on the surface of the rubber sleeve; the positioning pins engage the irregular flange, the irregular flange is placed on the surface of the rubber sleeve, and the grippers abut and compress the side walls of the irregular flange. The fixture for testing the airtightness of irregular flanges provided by this utility model has the advantages of quickly fixing the flange and ensuring the sealing of the connection.

The invention relates to the technical field of cloth processing, in particular to dip dyeing equipment for cloth processing, which comprises a dip dyeing box, first guide rollers are rotatably connected to two ends of the inner wall of the dip dyeing box close to the top end, and a second guide roller is rotatably connected to the center of the inner wall of the dip dyeing box close to the bottom end; a pressing dyeing mechanism is installed on the inner wall of the dip dyeing box and located between the two first guide rollers and the two second guide rollers, a feeding port is formed in one end of the outer wall of the dip dyeing box, and a liquid scraping mechanism is installed on the other side of the outer wall of the dip dyeing box. The up-down movement assembly is used for driving the elastic extrusion assembly to move, and the elastic extrusion assembly is used for pressing all parts of the surface of the cloth. The device has the beneficial effects that dye liquor near cloth can be stirred, all positions of the cloth can be pressed and supported, the dye liquor can enter the cloth more quickly and fully, the subsequent dip dyeing effect is guaranteed, and the applicability of the device is further improved.

The invention discloses a double-lock manhole isolation door for a limited space and a machining device of the double-lock manhole isolation door, and belongs to the technical field of isolation doors. Comprising a door body composed of an outer ring and a middle net, and an annular base matched with the door body. The annular base and the door body are correspondingly provided with at least two groups of lock noses and through holes; in the installation state, the lock nose penetrates through the through hole to the outer side of the door body, and a padlock installation position is formed. According to the invention, a unique structure is designed for manhole plugging and isolation in a limited space; when the door is opened, authorization and agreement of at least two persons are needed, effective safety control is fully guaranteed, and reliable access control measures for the limited space are formed; an operation safety notification board is arranged to remind personnel to pay attention to the limited space; a baffle can be selectively matched to seal the manhole, so that different environmental requirements are met; the door body is separated from the door body, so that the door body and the door body are convenient to open and close; and by arranging the positioning block, rapid positioning and insertion are achieved, and the stability of the installation state can be better kept.

The application discloses a meat grinder convenient to clean, relates to the field of meat grinders, and comprises a rack, a machine box, a meat grinding cylinder assembly and a meat grinding assembly. After the rotating plate is opened, the rotating shaft is manually rotated, the inserting position of the rotating shaft and the inserting block is rotated to a horizontal position, one end of the rotating shaft is pulled out through the clamping groove on the outer surface of the rotating shaft, the rotating shaft is rotated with the connecting cylinder and the connecting rod as the center, after the rotating shaft drives the blade and the cutting part to rotate out of the inside of the fixed plate, the rotating shaft is pulled out outward, the rotating shaft is separated from the connecting cylinder, so that the rotating shaft is disassembled, the rotating plate is conveniently and quickly opened and closed through the hinged arrangement of the rotating plate and the fixed plate, the soft extrusion block is extruded through the connecting block, the extrusion of the sealing strip on the connecting part of the rotating plate is improved, the sealing effect is improved, the rotating plate and the fixed plate are conveniently and quickly disassembled, and the inside of the fixed plate and the rotating plate is convenient to clean.