51results about How to "Avoid tight seals" patented technology

The invention discloses a building external wall heat preservation structure easy to disassemble and assemble, and belongs to the technical field of building external wall heat preservation, the building external wall heat preservation structure easy to disassemble and assemble comprises a mounting plate, a heat preservation plate is mounted in the mounting plate, a setting assembly is arranged in the mounting plate, a locking and adjusting assembly is arranged at one end of the mounting plate, and a disassembly assisting assembly is arranged in the mounting plate; the peripheral side faces of the heat preservation plate are tightly pressed through expansion of the setting assemblies, so that the heat preservation plate is rapidly installed in the installation plate, meanwhile, a gap between the heat preservation plate and the installation plate is blocked, the construction efficiency is improved, the requirement for the size precision of the heat preservation plate is effectively lowered, and the construction cost is reduced. The expansion state of the setting assembly is locked through the arranged locking and adjusting assembly, meanwhile, the expansion degree of the setting assembly can be adjusted through the arranged locking and adjusting assembly, a good expansion sealing effect can be achieved for heat preservation plates with different thicknesses, the heat preservation plates can be automatically disassembled through the arranged disassembly assisting assembly, and the disassembly efficiency is improved. And the insulation board is more convenient and labor-saving to disassemble.

The utility model relates to the technical field of LNG booster pumps, in particular to an integrated liquid outlet one-way valve structure of a cold-end compression cylinder of an LNG booster pump. Comprising a compression cylinder, a compression piston connected with a piston rod is arranged in the compression cylinder, a liquid inlet and a liquid outlet are formed in the compression cylinder, the liquid outlet comprises a liquid outlet channel arranged in the side wall of the compression cylinder, the inner side of the liquid outlet channel is communicated with an inner cavity of the compression cylinder, the outer side of the liquid outlet channel extends to the end of the compression cylinder, and a taper hole is formed in the liquid outlet channel. A non-return core matched with the taper hole is movably arranged in the liquid outlet channel, a valve element is fixedly installed in the position, on the outer side of the non-return core, of the liquid outlet channel, a spring is installed between the valve element and the non-return core, and a fluid channel is formed in the valve element. The problem that sealing is not tight due to threaded connection of the liquid outlet valve and the compression cylinder in the prior art is solved, leakage points are reduced, and the leakage probability is reduced; the non-return core is matched with the taper hole, face-to-face sealing is achieved, the sealing effect is better, and the performance is more stable and reliable in the low-temperature and high-pressure environment.

The utility model discloses a high-pressure sealing structure of high-temperature sterilization equipment for edible mushroom production in the field of high-pressure sealing, which comprises a sealing component, the sealing component comprises a sealing cover, the upper surface of the sealing cover is movably connected with a fixing bolt, and the outer surface of the sealing cover is fixedly connected with a first sealing ring; a second sealing ring is fixedly connected to the outer surface of the sealing cover, a spring column in the anti-leakage assembly is arranged, and when the second sealing ring extrudes the surface of a connecting pad, the spring column can eject a connecting plate upwards, so that the spring column adapts to size changes through elastic deformation of the spring column, and pressure on a sealing component is always kept; the sealing surfaces are tightly attached, so that the good sealing effect is maintained, meanwhile, pressure distribution can be automatically adjusted according to the actual conditions of the sealing surfaces, the problem that sealing is not tight due to the fact that local pressure is too high or too low is solved, and sealing reliability is improved.

A vacuum valve of an integrated die-casting die comprises the die-casting die, a vacuum valve body, an oil cylinder and an exhaust pipe, the vacuum valve body and the oil cylinder are installed in a vacuum valve installation cavity and an oil cylinder installation cavity which are formed in the die-casting die respectively, a valve element arranged in an inner cavity of the vacuum valve body is connected with the oil cylinder, and the inner cavity of the vacuum valve body extends out of the die-casting die through the exhaust pipe. An inner cavity of the vacuum valve comprises a guide section, an air exhaust section and a sealing section, a sealing sleeve is arranged in the guide section, a mounting hole is formed in one side of the air exhaust section, an air exhaust pipe is mounted in the mounting hole and communicated with the air exhaust section, the sealing section is a stepped hole, the diameter of a small-diameter section is the same as that of the air exhaust section, and a middle-diameter section is a straight surface section. The small-diameter section is communicated with the cavity and used for forming straight face sealing with the straight face of the valve element end, the large-diameter section is communicated with the cavity, a first inclined face is arranged between the small-diameter section and the medium-diameter section and used for forming inclined face sealing with the inclined face of the valve element end, and a guide inclined face is arranged between the medium-diameter section and the large-diameter section.

The invention relates to an oral cavity cleaning appliance which comprises a handle extending along a first axis and a flushing head movably arranged at the end of the handle. The handle comprises a shell, a movement device, a water storage area and a pump. A liquid storage cavity and a driving cavity separated from the liquid storage cavity are formed in the shell; the moving device is arranged in the driving cavity and used for driving the flushing head to reciprocate along the first axis; the moving device comprises a moving shaft, and a hollow runner extending along a first axis is arranged in the moving shaft; the moving shaft comprises a first end and a second end which are oppositely arranged, and the first end penetrates through the end, close to the flushing head, of the handle and is connected with the flushing head; the water storage area is arranged in the driving cavity; the second end extends into the water storage area, and the water storage area is used for providing a space for the movement shaft to move along the first axis; the pump is arranged in the driving cavity and communicates with the liquid storage cavity and the water storage area. The pump pumps liquid in the liquid storage cavity to the flushing head through the water storage area and the hollow flow channel.

The utility model discloses a kind of sealing equipment for packaging production of Undaria pinnatifida, belong to packaging sealing field, including mounting bracket, conveying assembly is installed on mounting bracket, mounting bracket one side is fixedly connected with mounting plate, sealing mechanism is provided on mounting bracket, sealing mechanism includes stand, stand is fixedly connected on mounting bracket, cylinder is fixedly connected with the top of stand, cylinder output end is fixedly connected with sealing machine. Advantageous effect lies in: setting guiding mechanism, positioning mechanism and power mechanism, the setting of guide plate can make Undaria pinnatifida packaging bag be right below sealing machine, ensure that Undaria pinnatifida can be sealed and clamped in the sealing position of sealing machine by clamp plate, it is favorable to improve sealing quality, and by the setting of connecting sleeve and connecting frame, when Undaria pinnatifida is clamped by clamp plate, conveying assembly temporarily stops action, avoid the situation that sealing is not strict, further ensure sealing integrity.

The invention relates to the field of cooked food sealing packaging, in particular to cooked food sealing packaging equipment which comprises a workbench, a material moving disc is rotationally installed at the upper end of the workbench, and a sealing cover laying unit and a heat sealing unit which are located on the left side and the rear side of the material moving disc correspondingly are arranged at the upper end of the workbench. The sealing cover laying unit can guide and limit the adsorbing, transferring and placing process of the sealing cover, it is ensured that the sealing cover can be accurately placed at the correct position on the round packaging box, deviation or dislocation is avoided, and therefore the heat sealing precision is improved, meanwhile, the sealing cover can be prevented from shaking in the moving process, and the service life of the sealing cover is prolonged. The sealing covers are stably placed on the packaging round box, positioning deviation caused by shaking is avoided, it is ensured that the placing positions of all the sealing covers are consistent, and therefore the quality consistency of products is improved.

The utility model provides a photovoltaic greenhouse agricultural shed support which comprises a support body, the support body comprises a plurality of stand columns and a plurality of girders erected on the stand columns, the girders are arranged side by side, a plurality of purlines are arranged on the surfaces of the upper sides of the girders at intervals, and photovoltaic panels are installed on the purlines; first angle aluminum is arranged on the opposite surfaces of every two adjacent girders, a sunlight plate is connected between the first angle aluminum arranged on the opposite surfaces of every two adjacent girders, second angle aluminum is arranged on the opposite surfaces of every two adjacent stand columns, and a sunlight plate is connected between the two second angle aluminum arranged on the opposite surfaces of every two adjacent stand columns. The sunlight plates are fixed through the angle aluminum to replace traditional plastic cloth, the problems that the plastic cloth is prone to aging and needs to be replaced frequently are solved, the durability of materials is remarkably improved, and the splicing connection mode of the sunlight plates and the angle aluminum avoids the problem that girders and purlines cannot interfere with covering installation films due to the fact that photovoltaic plates need to be installed.

A new municipal road drainage structure, including well seat, the bottom of well seat is communicated with drainage pipeline, the top of well seat is embeddedly connected with grid plate, the inside of well seat is provided with filter assembly one, the top of drainage pipeline inner wall is detachably installed with movable plate, movable plate is circumferentially arrayed with multiple drainage holes, sealing assembly is arranged between movable plate and drainage pipeline inner wall, movable plate below drainage pipeline inner wall is detachably installed with movable frame, movable frame and movable plate are provided with same number of float ball as drainage hole, float ball limiting assembly is arranged between movable frame and movable plate outside each drainage hole, filter assembly two is arranged on drainage pipeline inner wall below movable frame, the utility model discloses through multilayer filtration and prevent backflow design, improve drainage stability, optimize component dismounting structure simultaneously, convenient maintenance, be applicable to municipal road drainage scene.

The invention discloses a low-leakage two-way valve for powder, relates to the technical field of two-way valves for powder, and aims at solving the problems that when an existing two-way valve for powder is closed, powder adhered between a valve element and a valve seat can form a gap between contact surfaces, meanwhile, the valve element can be possibly abraded, the sealing effect can be affected, and leakage is caused. The air storage bag is arranged in the valve body, when the valve is closed, the air storage bag is squeezed at the same time, air flow in the air storage bag can be led to the purging assembly and blown to the inner walls of the rubber sealing valve element and the valve seat through the purging assembly, and the contact face of the rubber sealing valve element and the valve seat is purged; therefore, the smoothness and tightness of the contact surface are improved when the two-way valve is in contact, the sealing effect is improved, leakage is prevented, meanwhile, the contact surface is cleaned, abrasion of powder to the rubber sealing valve element during sealing extrusion can be reduced, the sealing performance is guaranteed conveniently, and the service life of the two-way valve is prolonged.

The invention discloses a multifunctional waterproof first-aid kit, and particularly relates to the technical field of first-aid kits, the multifunctional waterproof first-aid kit comprises a first-aid kit main body, a cover body, a connecting part, a sealing part and a protection part, the side wall of the first-aid kit main body comprises a first inner wall layer and a first outer wall layer, and a storage assembly is arranged in the first-aid kit main body; the first-aid kit body and the cover body are both made of waterproof materials, and the side wall of the cover body comprises a second inner wall layer and a second outer wall layer. The connecting part comprises a connecting belt; the sealing part comprises a sealing cavity, and an inflation and deflation assembly is arranged in the first-aid kit body. The protection part comprises a protection cavity, and an automatic inflation assembly is arranged on the upper side of the first-aid kit body. Through the arrangement of the multiple layers of waterproof structures, it can be avoided that first-aid articles go bad or are damaged after encountering water, and therefore normal use of the first-aid articles is affected, the protection part can further protect the first-aid articles, and the application range of the first-aid kit is widened.

The present invention relates to the field of sealed packaging of cooked food, specifically to a sealed packaging device for cooked food, comprising a workbench, a material transfer disc is rotatably mounted on the upper end of the workbench, and a capping unit and a heat sealing unit are provided on the upper end of the workbench, which are respectively located on the left and rear sides of the material transfer disc. The capping unit used in the present invention can guide and limit the adsorption, transfer and placement process of the cap, ensuring that the cap can be accurately placed in the correct position on the packaging box to avoid offset or misalignment, thereby improving the accuracy of heat sealing, and at the same time, it can also prevent the cap from shaking during movement, so that the cap can be stably placed on the packaging box, avoiding positioning deviation caused by shaking, ensuring that the placement position of each cap is consistent, thereby improving the quality consistency of the product.

The utility model provides a safety relief device of a pressure vessel and the pressure vessel, and relates to the technical field of pressure vessel pressure relief. The safety relief device of the pressure vessel comprises a first filter, and the input end of the first filter is configured to be connected with a safety relief opening of the pressure vessel; the input end of the first switch valve is connected with the output end of the first filter; the rupture disk is arranged on the output end side of the first switch valve; the first safety valve is arranged on the output end side of the rupture disk; the buffer pipe is arranged between the first safety valve and the rupture disk; the reducer pipe is arranged on the output end side of the first safety valve; the discharge pipeline is arranged on the output end side of the reducer pipe; and the flame arrester is communicated with the output end of the discharge pipeline. The safe discharge of the mixed material is realized; the situation that the sealing surface of the valve is polluted by contained particles or powder, and sealing is not tight is avoided; safe discharge of flammable and explosive media is ensured; and safe and stable operation of the pressure container and the safe relief device thereof is realized.

The production equipment comprises a feeding sliding table, a lifting table, an aluminum pipe guiding mechanism, a die pressing assembly and a connector assembly, the die pressing assembly is arranged on the lifting table and comprises a lower die block, an upper die block and a die pressing frame, and the combination surfaces of the upper die block and the lower die block are matched in a step mode; two pressing die holes are formed between the upper die block and the lower die block and are the first pressing die hole and the second pressing die hole respectively, a first sensor and a second sensor are fixed to the outer side of the upper die block and the outer side of the lower die block respectively, and the first sensor and the second sensor correspond to the first pressing die hole and the second pressing die hole respectively; the lower die block is fixed on the die pressing frame through a screw; according to the equipment, a traditional aluminum pipe and aluminum fin evaporator pipe expanding method is changed, products with the length larger than 1.5 m can be produced through the equipment, it is guaranteed that fins are tightly attached to a pipeline, the pipeline does not extend, manual operation is not needed, and the interior of an aluminum pipe is purged after pipe expanding.

The utility model relates to the technical field of drinking water detection equipment, and discloses a portable drinking water rapid detection device which comprises a shell, the lower end of the shell is connected with a drainage pipe, the upper end of the shell is connected with a water inlet pipe, a rubber sleeve is arranged in the water inlet pipe, an inner through hole of the rubber sleeve is in an inverted cone shape, and a first clamping plate is arranged at the upper end of the water inlet pipe. A second clamping plate is arranged on one side of the first clamping plate. The water inlet pipe structure comprising the rubber sleeve is arranged on the shell, the inverted-cone-shaped design inside the rubber sleeve is utilized, adaptive sealing connection of drinking water outlet pipes with different pipe diameters is achieved, and the problem that sealing is not tight due to pipe diameter differences in a traditional connecting mode is effectively solved. In the connecting process, the second clamping plate is driven to retract inwards through the threaded sleeving relation between the bolt and the rotating sleeve, the first clamping plate is driven by the U-shaped rod to move synchronously, and the drinking water outlet pipe is clamped and fixed.

The disclosure provides a kind of hose strength detection device, it is related to strength detection technical field, including: fixed component, pump gas component and adjusting component, the fixed component includes support plate and base, one side of the support plate is equipped with clamping assembly, the clamping assembly includes upper sleeve and lower sleeve, the inner side of the lower sleeve is equipped with detection assembly, the detection assembly includes inner rod and sensor, the inner side of the upper sleeve is equipped with pressurizing assembly, the pressurizing assembly includes inner tube and catheter, the inner side of the upper sleeve and lower sleeve is equipped with expansion assembly, the hose strength detection device can make that hose is clamped while being clamped by air bag two two-way outward, air bag two and air bag one can be mutually cancelled out to the pressure generated to the inner wall and outer wall of hose, avoid hose to be damaged due to air bag two or air bag one extrusion too much, guarantee the both ends of hose can safely carry out clamping sealing work, it is suitable for the structure strength of hose detection operation use.

The box body of the battery pack comprises a cover plate and a first edge beam, the cover plate comprises a plate body and an eave portion connected to the periphery of the plate body, an opening is formed in the side, away from the plate body, of the eave portion, the first edge beam comprises a bearing portion and a protruding portion, the bearing portion bears the eave portion, and the protruding portion is arranged on the edge of the eave portion. The protruding part is arranged on the side, facing the eave part, of the bearing part in a protruding mode and located on the side, deviating from the plate body, of the eave part. Wherein the convex part is partially arranged in the opening, a mounting hole is formed in the part, opposite to the opening, of the convex part, and a fastener is arranged in the mounting hole in a penetrating mode so that the first edge beam can be mounted on external equipment. The convex part of the first edge beam is convexly arranged on the side, facing the eave part, of the bearing part and located on the side, deviating from the plate body, of the eave part, and the convex part is partially arranged in the opening of the eave part, so that stable and tight connection of the cover plate and the first edge beam can be realized, and the sealing performance and the space utilization rate of the box body of the battery pack are improved.

The utility model relates to a box door sealing device of vacuum freeze drying machine, including machine body and box door, one side of box door is hinged with machine body, the back portion fixed mounting of box door has the sealing ring, the size of sealing ring is same with the inside size of machine body, the back portion mounting of box door has the support assembly convenient for supporting sealing ring, support assembly includes four and sealing ring four sides corresponding resistance board, one side mounting of machine body has the fixed component convenient for fixing box door. The utility model discloses through the setting of support assembly, can make four resistance boards synchronous and evenly move to sealing ring, ensure that sealing ring can tightly adhere to the opening of machine body in each direction, effectively avoid the problem of not tight sealing because of local support shortage, solve the problem that the existing device needs to rotate two turbine discs to make both sides pressure plate support sealing ring, and the efficiency is lower, and only to the both sides of sealing ring support, the effect is poor, influence sealing effect.

The utility model provides a tearing line die of an aluminum plastic packaging machine, which relates to the technical field of packaging machinery and comprises a blade base, a blade fixing plate, a separating plate, a tearing line bottom die, a sliding shaft, a shaft sleeve, a transverse blade, a vertical blade and a spring, and the transverse blade is provided with a blade body gap. The utility model is characterized in that the width of the vertical groove is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the vertical groove; the width of the blade body gap of the transverse blade is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the blade body gap; the width of the cutter groove is larger than the thickness of the vertical blade. The position of each vertical tearing line can be independently adjusted, the problem of tearing line printing deviation caused by shrinkage difference of packaging materials is solved, and the sealing performance and quality of products are improved.

The invention relates to the field of specimen bags, and particularly discloses a specimen fetching bag and a sealing mechanism thereof. The upper surplus edge, the hand groove and the lower surplus edge are arranged on the bag body, a user can lift the bag body through the hand groove and the upper surplus edge, an operator can conveniently take the bag body for transportation, the lower surplus edge can increase the bottom area of the bag body, and the bag body can be stably and vertically placed conveniently; a user can observe the amount of the formaldehyde solution injected into the bag body through the scale groove, the formaldehyde solution is prevented from being added too much or too little, when the bag body needs to be closed, the bag opening can be sealed through the concave-convex sliding block clamping chain, untight sealing caused by manual pressing of an operator is avoided, the user can press the sealed bag body, and the sealing effect is good. Excess air in the bag body is squeezed out from the exhaust valve, so that the specimen is completely immersed in the stationary liquid, when the specimen in the bag body is taken out, the liquid discharge valve can be opened to discharge the stationary liquid, and then the bag body is opened to take out the specimen in the bag body.

The invention discloses an anti-exosmosis chemotherapy dosing device for medical oncology, which belongs to the technical field of tumor chemotherapy and comprises a moving rod, a support rod is fixedly mounted at the top end of the moving rod, a dosing bottle is arranged on one side of the support rod, and an infusion mechanism forming a gas-liquid pressure self-balancing system is arranged at the bottom end of the dosing bottle. The infusion mechanism comprises an injection head inserted into a bottle opening of the medicine feeding bottle, a first connecting block is arranged on the injection head, and an infusion tube is installed at the free end of the injection head in a communicating mode. Meanwhile, redundant liquid can be rapidly shunted and reflowed through the backflow pipe, the backflow pressure peak value can be effectively absorbed through a buffering bag supported by a honeycomb support in the flow slowing cavity, vortex can be avoided through a built-in flow guiding component and a flexible silica gel miniature flow limiting valve, and the problem of damage caused by too high pipeline pressure is solved to the maximum extent.

The utility model relates to filter cleaning technical field, the utility model discloses a kind of self-cleaning filter, including filter, mounting bracket, support leg and drain pipe, filter lower end outside surface and mounting bracket surface fixed connection, mounting bracket surface and support leg upper end fixed connection, filter lower end inner wall and drain pipe surface fixed connection, the utility model is connected by setting cleaning device and auxiliary mechanism, cleaning device is used to clean filter inner wall, auxiliary mechanism is used to assist cleaning process, when maintaining traditional filter, it is usually needed to stop and dismount and clean manually, this not only consumes manpower and time, also can interrupt production, reduce efficiency, in continuous production process, unplanned shutdown will lead to economic loss, frequent manual cleaning can also increase the risk of operator contacting chemical substances, and it is difficult to ensure that each time is thoroughly removed scale and impurities, affect the life and performance of filter.

The utility model provides a sealing pressing ring and an optical lens, the sealing pressing ring is used for sealing and fixing the second end of the optical lens, the outer ring surface of the sealing pressing ring is provided with a dispensing ring surface and a trimming ring surface from the first side to the second side of the optical lens, and the dispensing ring surface is arranged close to the optical axis of the optical lens relative to the trimming ring surface. An injection molding sprue is formed in the edge cutting ring surface, the maximum thickness L4 of the sealing pressing ring in the direction parallel to the optical axis meets the condition that L4 is larger than 0.5 mm, the length L2 of the adhesive dispensing ring surface in the direction parallel to the optical axis meets the condition that 0.2 mm < = L2 < = 0.3 mm, and the length L1 of the edge cutting ring surface in the direction parallel to the optical axis meets the condition that 0.2 mm < = L1 < = 0.5 mm. The utility model solves the problem that the injection molding rubber port of the front end pressing ring of the lens structure is not sealed tightly.

The sealing pipe fitting comprises a corrugated pipe, a connecting assembly and a clamping assembly, the connecting assembly is located at the right end of the corrugated pipe, the right end of a connecting block is in threaded connection with a connecting column, a connecting base is fixed to the right end of the connecting column, and the clamping assembly is located at the right end of the corrugated pipe. The supporting rod is arranged on the inner side of the connecting base in a penetrating mode, a reset spring is arranged on the outer side of the supporting rod, the clamping block is fixed to the inner side of the supporting rod, the clamping assembly is located on the right side of the connecting assembly, and the clamping assembly comprises a first baffle, a supporting pipe and a second baffle; a first baffle is fixed to the left end of the supporting pipe, and a second baffle is slidably connected to the middle of the outer side of the supporting pipe. Mounting and dismounting can be achieved without using tools, so that mounting and dismounting are convenient, maintenance by maintenance personnel is facilitated, the connecting position does not become loose along with time, and therefore the pipe fitting is prevented from falling off from the fixing protrusion.

The utility model relates to a kind of double-drive rotary drive bearing, including annular shell, inner tube, worm gear ring, worm, plugging mechanism, sealing ring and sealing limiting assembly;Worm gear ring is installed between annular shell and inner tube, worm is installed through horizontal cylinder and is engaged with worm gear ring, realizes rotary drive;Horizontal cylinder is equipped with oil injection hole, oil injection hole is blocked by sliding sealing sliding plate, sealing sliding plate and threaded rod, moving block, connecting rod linkage realize synchronous opening and closing;Sealing ring blocks gap, cooperates swing plate, peg, stop lever and nut and forms limiting compression structure.The structure solves the technical problems of insufficient torque of existing single drive, inconvenient oil injection and sealing installation, improves transmission stability, maintenance convenience and sealing reliability.

This invention discloses a test device and method for the seepage prevention performance of an integrated utility tunnel under a river, belonging to the field of integrated utility tunnel engineering testing technology. It includes a shell structure, inside which a test mechanism is installed. The test mechanism is used to support the test block. The test mechanism is fixedly connected inside the shell structure and is used for unified control. A sealing mechanism is installed inside the shell structure. This invention sets up a drive mechanism, a supply mechanism, and a sealing mechanism. The drive mechanism's servo motor drives a turntable to rotate, which in turn moves the piston rod and piston plate via a guide rod and balance plate, simultaneously providing power for the water and gas supply to the supply mechanism. The gas supply pipe of the supply mechanism promptly delivers gas to the sealing mechanism, causing the expansion bladder to inflate synchronously and achieve sealing. Water is supplied to the surface of the test block through a water supply pipe, a water circulation pipe, and a pressure testing pipe, forming a linkage system of drive, supply, and sealing.

The utility model relates to the technical field of submarine cable clamps, and discloses an offshore wind power submarine cable clamp device which comprises an upper clamp, a lower clamp is movably installed on the outer surface of the upper clamp, a flexible frame is movably installed between the upper clamp and the lower clamp, and an elastic plate is movably installed in the flexible frame. Threaded holes are formed in the upper clamp and the lower clamp, bolts are arranged in the threaded holes in a threaded mode, and balls are installed on the outer surfaces of the interiors of the upper clamp and the lower clamp. Compared with a traditional device, the device has the advantages that friction and jamming of the upper clamp and the lower clamp are reduced conveniently through cooperation of the flexible frame and the elastic plate, the flexible frame and the elastic plate have remarkable advantages in the aspect of coping with dynamic changes of the submarine cable by means of elasticity and deformation capacity of the flexible frame and the elastic plate, impact force can be buffered when the submarine cable vibrates, and the submarine cable is prevented from being damaged. Excessive wear caused by rigid contact between the clamp and the submarine cable is avoided, and the service life is prolonged; the submarine cable expands with heat and contracts with cold.

The utility model relates to the technical field of bag-type dust removers, in particular to a high-sealing leakproof cloth bag for a bag-type dust remover, which comprises a dust remover main body and a filter bracket detachably connected in the dust remover main body, the filter bag assembly comprises a filter bag body, an outer bag cage arranged outside the filter bag body in a sleeving mode and an inner bag cage connected into the filter bag body in a clamped and embedded mode, the outer bag cage is of a cylindrical frame structure, the two ends of the outer bag cage are connected to a filter support in a matched mode, and a pressing ring is arranged on the upper surface of the filter support; the pressing ring is movably arranged on the filtering support along the axis of the outer bag cage, a sealing gasket is arranged between the outer bag cage and the pressing ring, one face of the sealing gasket abuts against the outer bag cage, and the other face of the sealing gasket abuts against the pressing ring; by additionally arranging the sealing ring and the sealing gasket, the double-sealing effect is realized, and the sealing stability of the filter bag assembly is ensured.

The application discloses a high-concentricity hemostatic gel plug and a preparation method thereof. In the application, a uniform hollow circular columnar skeleton is constructed through inorganic salt particle accumulation and saturated aqueous solution bridging technology, and the eccentric problem caused by the traditional curling process is fundamentally solved. The skeleton forming method utilizes the regular gap structure formed by the close arrangement of particles to provide an accurate template for the subsequent uniform filling of PEG solution. After solidification, the gel plug obtained by dissolving the inorganic salt has a high consistency in radial size, which ensures accurate matching of the channel shape when plugging the puncture channel and avoids the problem of loose plugging caused by eccentricity. Meanwhile, the entire preparation process is completed in a closed container, reducing the interference of the external environment on the forming precision, and the consistency between batches of products is significantly improved. The three-dimensional interpenetrating gap network formed in the preparation process greatly improves the blood absorption rate of the material.