56results about How to "Prevent affecting the sealing effect" patented technology

The invention discloses a driving roller. The driving roller comprises an outer cylinder and an inner cylinder arranged inside the outer cylinder, a motor is fixedly arranged inside the inner cylinder, the output shaft of the motor sleeves with a first rotating piece, and the outer peripheral surface of the first rotating piece is fixedly connected with the inner wall of the outer cylinder in a sealing mode; and the other end of the inner cylinder is provided with a second connecting piece, and the inner cylinder and the outer cylinder are rotationally connected together through the second connecting piece, wherein the second connecting piece is hermetically connected with the inner cylinder and the outer cylinder correspondingly. The driving roller has the beneficial effects that the motor is fixedly arranged inside the inner cylinder in a sealing mode, so that the waterproof performance is good; the inner cylinder and the outer cylinder are enabled to be connected rotationally through the first connecting piece and the second connecting piece, the outer cylinder is sleeved with the shell with spiral blades, when the roller of the robot is in contact with the inner wall or the sludge of the pipeline, friction is carried out by rotating of a spiral roller to the inner wall of the pipeline or the sludge to drive the pipeline robot to move forward, so that the contact area is large, and slipping is avoided; and when the roller of the robot is suspended in water, the spiral roller is equivalent to a propeller, the spiral roller rotates to be drained away water backwards and drives the pipeline robot to move forwards.

The invention relates to a carton sealing device, in particular to a carton sealing device for adhesive tape packaging. The carton sealing device for adhesive tape packaging aims at achieving the technical purposes of saving time and labor, being good in carton sealing speed and capable of fixing a carton. According to the technical scheme, the carton sealing device for adhesive tape packaging comprises a bottom plate, a limiting plate, guide rods, a top plate, guide sleeves, a frame body, a transverse rod, a sliding sleeve, a transverse plate, a vertical plate, a fixing rod, a first air cylinder, a pressing roller, an electric wheel and the like, the guide rods are installed on the left side and the right side of the top of the bottom plate, the guide rods are sleeved with the guide sleeves, the frame body is installed between the inner side faces of the guide sleeves on the left side and the right side, and the transverse rod is installed between the lower portion of the left side face and the lower portion of the right side face inside the frame boy. A carton can be fixed through a fixing device so as to be prevented from moving and affecting the carton sealing effect, adhesivetape can be notched through the effect of a cutter head, operators can tear off the adhesive tape more conveniently, and the effects that time and labor are saved, the carton sealing speed is high, and the carbon can be fixed are achieved.

The invention discloses a non-throttling self-service unsealed packer which comprises an upper connector, an upper central pipe, a sealing mechanism, a spring central pipe, a spring self-service unsealing mechanism, a lower central pipe, a setting-dissoluble unsealing mechanism and a lower connector. No throttling or setting needs to be conducted for the non-throttling self-service unsealed packer, and the setting process is convenient to control; limiting steps are arranged in the packer, it is avoided that the sealing effect is affected by the excessive compression of a rubber cylinder; by means of the compressed rubber cylinder, the borne pressure difference is large, and the setting effect is good and stable; large-discharge and large-scale cracking construction refitting can be realized; by means of the spring self-service unsealing mechanism, unnecessary advanced setting generated in the pipe column put-down process is avoided; after cracking construction ends, the rubber cylinder of the packer is rapidly unsealed under the dual effects of the rebound force of the rubber cylinder and the self-service unsealing force of a spring; by means of the setting-dissoluble unsealing mechanism, under the high pressure in a well, the rapid unsealing of the packer can still be ensured.

The invention discloses a cabin door sealing system which comprises a sealing part. The sealing part comprises a deforming air bag, wherein a retaining seat is arranged at the bottom of the deforming air bag, a sealing lip is arranged at the top, the sealing lip is jacked up and a static seal is formed when the deforming air bag is inflated to expand. The invention further provides a tidal power generator set applying the cabin door sealing system. The cabin door sealing system is reliable in sealing, convenient to maintain, long in serve life and low in cost and provides a sealing scheme low in cost and convenient to operate for a mechanism often needing scheduled maintenance and arranged underwater, especially for a maintenance cabin door of the tidal power generator set.

The invention provides a cylinder filling adaptor, which aims to solve the problem that the conventional cylinder filling adaptor has the drawbacks of having low sealing and airtight performance and damaging a cylinder component, and comprises an inner core and a connecting sleeve, wherein the inner core is internally provided with an air flue, an elastic body is sleeved around the outside of a connection part at the near end of the inner core, and the outer side, adjacent to the connection part, on the periphery of the inner core is provided with a protrusion; the connecting sleeve is comprised of a connecting section and a thrust section, the connecting section has a cylinder structure with a positively-rotatable internal threads, and the thrust section is an inner step arranged at the far end of the connecting sleeve, the connecting sleeve is sleeved on the inner core from the far end of the inner core with the thrust section clamped at the position of the protrusion of the inner core and the connecting section matched with the positively-rotatable internal thread at the external wall of the inflation inlet to make the connection part, with the elastic body, of the inner core enter the cylinder part at the inner wall of an inflation inlet to form sealed fit. The cylinder filling adaptor has the advantages of avoiding gas leakage in a gas filling process and avoiding damaging the cylinder components in installation and use.

The invention discloses a hole sealing device for a drilled hole. The device comprises a hole sealing pipe, a bag, an inner leaking stoppage plug, an outer leaking stoppage plug and a pull rope. The two ends of the hole sealing pipe are sleeved with the inner leaking stoppage plug and the outer leaking stoppage plug respectively and penetrate out of the inner leaking stoppage plug and the outer leaking stoppage plug respectively. The bag comprises a bag film. The bag film coaxially surrounds and is arranged outside the hole sealing pipe. The sealed annular bag is formed by the bag film and the outer wall of the hole sealing pipe. The thickness of the bag film is smaller than or equal to 1 mm. At least two barriers are arranged in the bag and divide the bag into at least two bag chambers which are not communicated. One end of the pull rope is fixedly connected to at least one barrier, and the other end of the pull rope penetrates out of the outer leaking stoppage plug. The bag contains hole sealing materials comprising various kinds of components. Each bag chamber contains one kind of component of the hole sealing materials. According to the hole sealing device, the barriers can be removed or torn open by pulling the pull rope, the hole sealing materials in the bag chambers are mixed, reacted and expanded, and therefore the drilled hole is sealed; operation is simple, and the hole sealing effect is good.

The invention relates to the production field of alumina and concretely relates to a sealing structure for high temperature revolution equipment and static equipment, and a use method of the same. The sealing structure can prevent a sealing device used in a sealed connection part between the high temperature revolution equipment and the static equipment losing efficacy due to thermal formation caused by high temperature. The sealing structure comprises the static equipment, the revolution equipment, revolution rings, a water pipe, a sealing structure, a sealing device and a cylinder gap, wherein the cylinder bottom part of the revolution ring (I) is connected with the revolution equipment; a gap is formed between a cylinder body part of the revolution ring (I) and a cylinder body of the revolution equipment; one end of the pressurized water pipe extends into the gap; cooling water can be injected to the gap by the pressurizing water pipe; the external side of the revolution ring (I) is provided with a revolution ring (II); and a gap is reserved between the revolution ring (II) and a static ring. A certain gap is reserved between the sealing device and the cylinder body of the revolution equipment and the cylinder body can be sprayed by the water pipe, so thermal deformation of the sealing device due to excessive high temperature of the cylinder body can be avoided and sealing effect can be maintained.

The invention discloses a throttling-free multistage layered fracturing pipe column and a multistage fracturing construction method. The pipe column comprises a horn mouth, a plurality of throttling-free self-service deblocking packers, throttling-free sand blasting sliding sleeves, sand prevention hydraulic anchors and hydraulic safety joints which are sequentially connected through oil pipes from bottom to top. In each throttling-free sand blasting sliding sleeve, a plurality of sand blasting holes are formed in a sand blasting sliding sleeve body, a throttling-free inner sliding sleeve is fixed in each sand blasting sliding sleeve body through a plurality of shear pins and seals the sand blasting holes, and comprises an outer cylinder and an inner cylinder with the axial length smallerthan that of the outer cylinder, and the inner cylinder sleeves the inner side of the bottom end of the outer cylinder through a connecting part in a manner that a gap exists; and the inner diameter of the inner cylinder of each stage of throttling-free sand blasting sliding sleeve is gradually increased from bottom to top. According to the non-throttling multistage layered fracturing pipe column,the purpose of completing multistage layered fracturing and layer combining production solving by tripping in the pipe column once can be achieved, bottom-to-top step-by-step fracturing constructionis achieved, and the sand conveying efficiency and the fracturing construction safety can be remarkably improved through the corresponding fracturing construction method.

The invention discloses a flexible wind shield, and belongs to the technical field of heavy-duty car part manufacturing. A supporting steel plate and the flexible rubber are compounded into a whole, the flexible rubber in contact with the cab floor is matched with the cab floor in shape, gaps of the cab floor are shielded, and air leakage is reduced; the supporting steel plate in contact with thecooling module is provided with a plurality of through holes or notches for various pipelines and other structures to penetrate through according to the structure of the cooling module, so that the gap between the flexible wind deflector and the cooling module is greatly reduced, the hot air backflow prevention effect is good, and the heat dissipation efficiency of the cooling module is improved.Peak-shaped protrusions on the supporting steel plate increase the combination area of the supporting steel plate and the flexible rubber, and the combination strength is improved. The wrinkled protrusions and the annular grooves are formed in the flexible rubber, before the cab does not bounce, the upper portion of the flexible rubber and the floor of the cab are sealed, hot air backflow is prevented, and after the cab bounces, the flexible rubber and the cab can still be well sealed through compression and springback deformation.

The invention relates to pipeline transportation equipment for natural gas. The pipeline transportation equipment comprises a valve body, a hydraulic cylinder and two connecting pipes, wherein the hydraulic cylinder is vertically arranged at the top of the inside of the valve body; the two connecting pipes are separately and horizontally arranged on the two sides of the valve body; two filtering perforated pipes communicate through the valve body; the two connecting pipes are coaxially arranged; the hydraulic cylinder is positioned above the connecting pipes; the valve body is provided with two sealing mechanisms and two filtering mechanisms; the sealing mechanisms and the filtering mechanisms are in one-to-one correspondence with the connecting pipes; and the sealing mechanisms comprise supporting blocks, push rods, connecting rods, extrusion plates, air bags, supporting disks and supporting assemblies. According to the pipeline transportation equipment for the natural gas, the sealing performance is improved through the sealing mechanisms, and the sealing effect is prevented from being affected by gaps generated by wear and tear. Moreover, the function of filtering out impurities in the natural gas is achieved through the filtering mechanisms.

The invention relates to a capping device, in particular to a capping device for an oil drum in a workshop. The technical program to be solved by the invention is to provide the capping device for the oil drum in the workshop. The capping device does not consume physical strength and is high in efficiency. The capping device for the oil drum in the workshop comprises a base; two support blocks mounted on the base; a pressing mechanism mounted on the base; and an edge sealing mechanism mounted on the pressing mechanism. The capping device is provided with a drum cap storage mechanism, a drum cap can be bounced automatically under the acting force of a third spring so as to be conveniently stored by a worker. The capping device is provided with a limiting mechanism, the drum cap can be accurately placed on the oil drum under the effect of a second baffle, so that the situation that the capping effect is affected due to the fact that the drum cap cannot be accurately placed is prevented. The capping device is provided with a pushing mechanism, and the oil drum does not need to be manually moved and a first sliding rod does not need to be controlled to move by controlling a cylinder when the device is used, so that the burden of the worker is reduced.

The invention relates to the field of water pumps, and particularly relates to a light large-flow low-level draining pump. The light large-flow low-level draining pump comprises a pump case, a motor,a water pump end cover, an adjustable suction inlet and a filter screen type water pump base, the adjustable suction inlet is installed on the end of the water pump end cover, a flange is arranged onthe outer wall of the suction inlet, a plurality of flange through holes are formed in the flange, a plurality of end cover blind holes are formed in the water pump end cover, the water pump end coveris connected with the adjustable suction inlet by virtue of an adjusting bolt, an upper adjusting nut and a lower adjusting nut are respectively arranged on the adjusting bolt on the upper and lowersides of the flange, the filter screen type water pump base comprises a bottom plate and a side wall, the bottom plate is a plane, a plurality of draining holes are formed in the bottom plate, the side wall is of a filter screen type structure, a plurality of inward concave ways are formed in the side wall, and the base is fixedly connected with the water pump end cover by virtue of fastening bolts at the inward concave ways. The light large-flow low-level draining pump has the advantages of the simple structure, convenience in operation and time and labor saving, a water pump is prevented from being damaged, and the flow lift of the water pump is prevented from being reduced.

The invention discloses a sealing and positioning auxiliary structure for sealing and positioning a sealing groove and a sealing part. The sealing groove is formed in a polar plate, the sealing part is arranged in the sealing groove, a sealing part limiting part is formed on the surface of the sealing groove, and a reverse positioning part opposite to the sealing part limiting part is formed on the surface of the sealing part. The reverse positioning part of the sealing part and the sealing part limiting part of the sealing groove are assembled in a matched mode, and a reference is provided for the assembling position of the sealing part. And the sealing element limiting part of the sealing groove prevents the sealing part from laterally deviating in the assembling process to influence thesealing effect.

The invention relates to the technical field of pressure bag equipment, and provides a one-step formed detachable pure rubber pressure bag. The pressure bag comprises a pressure bag body; a connectingnozzle is arranged on the pressure bag body; the end, away from the connecting nozzle, of the pressure bag body is open; a clamp is inserted into the opening; the joint of the pressure bag body and the clamp is filled with an adhesive tape; a plurality of first screws are inserted into the upper end face of the pressure bag body in a threaded penetrating mode; and screw holes corresponding to thefirst screws are formed in the clamp. The one-step formed detachable pure rubber pressure bag overcomes the defects in the prior art, is reasonable in design and compact in structure, and solves theproblems that an existing pressure bag can only use gas and water as pressure media, cannot be repaired and has no repairing value. The one-step formed detachable pure rubber pressure bag adopts the detachable pressure bag through simple structural combination, can use gas and water hydraulic oil as pressure media, and is high in practicability and easy to popularize and apply. Meanwhile, the pressure bag can be detached and repaired and maintained, and the service life of the pressure bag is prolonged.

The invention relates to the field of animal husbandry equipment, in particular to a flush valve. The flush valve comprises a base, a valve body fixedly installed on the base and a valve deck installed on the valve body; a through hole is formed in the middle of the base; a flushing pipeline is arranged at the through hole; the valve body comprises an enclosing board, a C-shaped cross beam, a valve board and an air bag fixedly installed on the valve board; the valve board is plugged at the through hole of the base; the two ends of the cross beam are fixedly connected with the enclosing board;the top of the air bag and a bottom board of the cross beam are fixedly connected; a supporting board is fixedly installed between two side boards of the cross beam and fixedly provided with a hingedshaft; the valve deck comprises a front valve deck body and a rear valve deck body which are hinged through the hinged shaft on the supporting board; the other end of the rear valve deck body is fixedly connected with the enclosing board of the valve body through a bolt; and the air bag communicates with a pneumatic press through an electronic valve. The flush valve is simple in structure and convenient to operate, and does not affect the movement space of cows.

The invention discloses a vehicle window glass sealing system which comprises vehicle window glass and further comprises a clamping plate of a long-strip-shaped structure, one end, in the width direction, of the clamping plate is a window frame connecting end, and the other end of the clamping plate is a glass connecting end. The clamping connector is in a long strip shape arranged along the edge of the vehicle window glass, the two ends in the width direction of the clamping connector are connected between the vehicle window glass and the clamping plate, the end, connected with the vehicle window glass, of the clamping connector is provided with a strip-shaped clamping connector supporting body, and the side face of the clamping connector supporting body is fixed to the side face of the vehicle window glass through a layer of clamping connector fixing glue in an adhesive mode. Clamping head mounting holes are distributed in the side face of the end, connected with the clamping plate, of the clamping head at intervals in the length direction, and clamping ball pins are correspondingly arranged on the clamping plate and clamped and fixed in the clamping head mounting holes in an interference fit mode. The sealing device has the advantages of being simple in structure, good in sealing effect and durability, convenient to assemble and free of influence on the appearance, and is particularly suitable for being installed and implemented on a front windshield of a car window.

The invention discloses a submersible sand pump. The submersible sand pump comprises a motor and a centrifugal pump body, wherein the motor comprises a stator, a rotor, an upper bearing seat, a lower bearing seat, bearings at the two ends, a motor shell, a handle and a connecting screw for connecting the upper bearing seat and the lower bearing seat, the lower bearing seat is provided with a mechanical seal cavity and a sealing cover, and a double-end-face mechanical seal is installed in the mechanical seal cavity; a sand prevention sealing ring is further arranged at the central axis position of the outer side of the sealing cover, the centrifugal pump body comprises an impeller and a pump volute, a sand separation disc is installed between the motor and the centrifugal pump body, radial separation ribs are arranged in an inner cavity of the sand separation disc, and a sand discharging opening leading to the outside is formed in the outermost edge position between every two adjacent radial separation ribs; and a sand separation sealing ring is arranged at the position of a shaft hole of an outer cavity of the sand separation disc, and a flange is arranged at the position, close to the shaft hole, of the back of the impeller and seals the sand separation sealing ring. The submersible sand pump has the beneficial effects of reducing damage of fine sand to a water pump seal, prolonging the service life of the motor and a submersible pump and reducing the use cost.

The invention provides an electrical sealing sleeve for a connecting device. The electrical sealing sleeve comprises an upper sealing component, a lower sealing component and a sealing sleeve ring with which the upper sealing component and the lower sealing component are sleeved. Sleeve holes are formed in the upper sealing component and the lower sealing component respectively. An upper sliding rail is arranged on the upper sealing component. A lower sliding rail is arranged on the lower sealing component. Sealing rings are arranged on the sleeve holes respectively. A lower fastening device and an upper fastening device are arranged on the sealing sleeve ring. An upper sliding component is arranged on the upper fastening device, and an upper control component is arranged on the upper sliding component. A lower sliding component is arranged on the lower fastening device, and a lower control component is arranged on the lower sliding component. An external thread end is arranged at the bottom end of the upper sealing component, and an internal thread end is arranged at the top of the lower sealing component. The electrical sealing sleeve for the connecting device can well solve the problem that an existing sealing sleeve can not achieve tight sealing.