51 results about "Rubber Dams" patented technology

The invention relates to the technical field of hydraulic engineering materials, and particularly discloses a corrosion-resistant rubber dam and a preparation method thereof. The rubber dam is prepared by the following steps: forming a composite matrix (in a mass ratio of 60: 25: 15) by using ethylene propylene diene monomer (EPDM), brominated butyl rubber (BIIR) and hydrogenated butadiene-acrylonitrile rubber (HNBR), adding silane coupling agent modified nano zirconium oxide-aluminum oxide composite powder (ZrO2-Al2O3 with the particle size of 30-80nm) as a corrosion-resistant filler, and carrying out two-stage mixing and gradient vulcanization processes. The tensile strength retention rate of the obtained product in a corrosive environment with the pH value of 1-14 is larger than or equal to 92%, the ultraviolet aging resistance life reaches 30 years, the air tightness is improved by 5 times (the leakage rate is smaller than or equal to 2% / month) compared with a traditional EPDM dam, and the dam is suitable for high-corrosive water areas such as seawater backflow and acid rain.

The invention discloses a flexible blocking solid source early warning structure suitable for narrow and steep debris flow prevention and control, and relates to the technical field of debris flow prevention and control. The structure is selectively arranged in a circulation area formed by debris flow, is reasonably combined and arranged from upstream to downstream according to the channel length and the longitudinal slope, and at least comprises four stages of flexible carbon fiber grating net structures and a counterfort type rubber dam. According to the flexible blocking and source fixing early warning structure suitable for narrow and steep debris flow prevention and control, the blocking and source fixing effects are achieved, early warning can be conducted in advance, the structure can bear high-strength impact of narrow and steep debris flow, impact loads are dispersed, damage of debris flow impact force to the blocking structure is greatly reduced, and the flexible blocking and source fixing early warning structure is light, green and convenient to use. According to the transportation and installation scheme, the construction period is short, the difficulty is low, debris flow disasters are accurately predicted, the problem that a steep debris flow prevention and control structure is prone to failure is solved, and the investment benefits of prevention and control measures are exerted to the maximum extent.

According to the intelligent early warning system for safety management of the rubber dam, various safety problems occurring in operation management of the rubber dam can be detected in time and fed back to engineering management personnel in time, precaution is carried out in advance, early warning is sent to dangerous source audiences, and therefore casualties and property losses are avoided or reduced. Through informatization and intelligentization technologies, various dangerous sources possibly existing inside and outside a rubber dam project are all provided with sensors, video monitoring devices and image recognition devices, all-weather, all-directional and dead-corner-free monitoring is carried out, various dangers occurring in operation management of the rubber dam can be monitored and recognized, manual monitoring and recognition of the dangers are not needed, and the safety and reliability of the rubber dam are improved. The project management personnel do not need to carry out frequent project inspection, the project management efficiency is improved, manual passive defense is changed into intelligent active defense, and the project safety is guaranteed. The system is mainly composed of a monitoring module, an intelligent control and analysis module, an early warning module and a system management module, after the early warning system monitors and identifies dangers, the early warning system can feed back the dangers to project management personnel in time, early warning information is sent to dangerous source audiences, the rubber dam is intelligently controlled to be filled and collapsed, and intelligent power failure is achieved; therefore, casualties and property loss can be avoided or reduced.

The utility model belongs to the technical field of rubber dam cloth, specifically relates to a rubber dam cloth with clip, including rubber dam cloth body and rubber dam clip, the middle position of rubber dam cloth body is equipped with tooth placing gap for placing tooth, the part of rubber dam cloth body on the peripheral side of tooth placing gap is barrier cloth turn -up portion, two end parts of rubber dam clip are clip clamping parts, two clip clamping parts and barrier cloth turn -up portion fixed connection, the material of rubber dam clip and clip clamping part is plastic, stainless steel, nickel titanium alloy, silica gel, silicon rubber or synthetic resin, the fixed connection of clip contact block has in clip clamping part, and clip contact block and barrier cloth turn -up portion fixed connection. The utility model can reduce the gap between tooth and rubber dam cloth, reduce the phenomenon that medicine passes through gap and flows into the inside of mouth cavity.

The utility model discloses a rubber dam engineering river surface weed cleaning device, which belongs to the technical field of rubber dam engineering and comprises a body, a smashing mechanism, a collecting mechanism and a beating mechanism are arranged on the body, fixing plates are symmetrically arranged on the body, the collecting mechanism comprises a fixing frame fixedly arranged between the two fixing plates, and the beating mechanism is arranged on the fixing frame. The fixing frame is obliquely arranged, a driving wheel is rotationally arranged at the high end of the fixing frame, a driven wheel is rotationally arranged at the bottom end of the fixing frame, the driven wheel and the driving wheel are in transmission connection through a conveying belt, and hooks are arranged on the surface of the conveying belt in an array mode. By means of the smashing roller, the bent hook and the smashing teeth, collected weeds can be effectively cut up, the situation that the weeds are too long to wind around the collecting mechanism, normal operation of the device is affected is effectively avoided, and the operation stability of the device is effectively improved.

The utility model discloses an implantation guide plate with a rubber barrier, which particularly relates to the field of dental implantation and comprises a positioning plate, rubber barrier cloth is arranged at the upper end of the positioning plate, a guide plate is arranged at the upper end of the rubber barrier cloth, a positioning groove is formed in the bottom end of the positioning plate, a clamping plate is arranged in the positioning groove, and a clamping groove is formed in the clamping plate. A positioning groove is formed in the upper end of the positioning plate, a positioning protrusion is arranged at the bottom end of the guide plate, a guide ring is fixedly arranged in the middle of the guide plate, and a guide ring in-place hole is formed in the upper end of the positioning plate. According to the utility model, the rubber barrier cloth is arranged between the positioning plate and the guide plate, can play roles in isolating moisture, isolating infection, clearing the visual field, pulling soft tissues and the like, can prevent cooling water, saliva or blood from influencing the operation of medical personnel during hole preparation, and can improve the visual field in the oral cavity and the success rate of the implant.

The utility model belongs to the technical field of rubber dam bags, and discloses a rubber dam bag protection device. The dam bag is mainly technically characterized by comprising a dam bag body, an upstream anchor bolt is arranged at the front end of the dam bag body, a downstream anchor bolt is arranged at the rear end of the dam bag body, protective cloth is arranged on the dam bag body, a spraying water pipe is arranged on the protective cloth, the top end of the spraying water pipe is connected with a water pump, and the top end of the spraying water pipe is connected with the water pump. The tail end of the spraying water pipe is connected with spraying heads which are uniformly distributed on the dam bag body, an upstream mounting part is arranged at the front end of the dam bag body, a downstream mounting part is arranged at the rear end of the dam bag body, the front end of the protective cloth and the upstream mounting part are fixed through a bolt, a lock catch or a binding mode, and the rear end of the protective cloth and the downstream mounting part are fixed through a bolt, a lock catch or a binding mode. According to the rubber dam bag protection device, in the dry season, the protection cloth absorbs water and simulates the soaking state of the dam bag, the aging speed of the bag body of the dam bag is slowed down, and the service life of the rubber dam bag is prolonged.

The invention relates to a nuclear power plant cold source system rubber dam aging state detection method and system.The nuclear power plant cold source system rubber dam aging state detection method comprises the steps that S1, historical rubber dam engineering data are obtained and subjected to statistical analysis, and sample layout data are obtained; s2, placing a sample at a position corresponding to the sample layout data, carrying out regular sampling detection on the sample, judging whether a defect exists or not, and if the defect exists, executing a step S3; s3, repairing the defect position of the sample; s4, material performance testing is conducted on the repaired sample and / or the sample without the defects, and a performance testing result is obtained; and S5, performing trend analysis based on the performance test result to obtain a service trend result. According to the method, samples are placed at corresponding positions, regular sampling detection and testing are carried out, and trend analysis is carried out, so that quantitative evaluation of the aging state of the rubber dam and accurate prediction of the service trend are realized.

The utility model provides a desilting structure suitable for a water intake of a rubber dam, which comprises a sand flushing pump, a sand flushing main pipe is detachably mounted at the outlet end of the sand flushing pump, the tail end of the sand flushing main pipe extends to the bottom of the water intake, two branch pipes are fixed on the sand flushing main pipe in the water intake, and jet nozzles are fixedly mounted on the surfaces of the branch pipes at equal intervals. The bottom of the sand flushing main pipe is provided with a water filling pump installed in the water intake, the top of the sand flushing pump is provided with a chain block, and the top of the sand flushing pump is provided with a hook end connected with the chain block. And then sludge is discharged to the downstream through the water filling pump, the sludge is prevented from entering the rubber dam from the water intake, so that the operation reliability of the water filling pump is improved, the service life of the rubber dam is prolonged, and the convenience of device maintenance can be improved through the detachable lifting type sand flushing pump.

The utility model discloses a rubber dam bag damage emergency plugging device, and relates to the technical field of rubber dam bags. The device comprises a hollow column, a plugging assembly is arranged on the inner side of the hollow column, and a limiting assembly is arranged at the top of the hollow column. The plugging device is inserted into the damaged position of the rubber dam bag to clamp and plug the inner side and the outer side of an adhesive tape at the damaged position of the rubber dam bag, the clamping area of the inner side of the damaged position can be enlarged, the plugging effect is improved, repairing is firm, reliability is high, water is not leaked, durability is achieved, repairing operation is simple and convenient, and the repairing efficiency is improved. The rubber dam bag damage repairing device is simple in structure, low in technical requirement for repairing personnel, capable of completing repairing in an extremely short time, capable of being put into use immediately after repairing, free of waiting, capable of being used for emergency repair under the emergency situation after dam bag damage and capable of being used for daily repairing, free of glue smearing, free of toxicity, free of water pollution and free of poison to management personnel, and the rubber dam bag damage repairing device can be used for emergency repair under the emergency situation after dam bag damage.

The present invention relates to the field of rubber dam clip storage technology, and in particular to a rubber dam clip storage box for disinfection, comprising a bottom box, a fixing assembly, and a box cover; the bottom box comprises a box body and a partition, the partition being installed in the box body and dividing the box body into a plurality of accommodating cavities, the partition being provided with vents to connect adjacent accommodating cavities, the front and back of the box body being respectively provided with first and second through holes arranged in a staggered manner; the fixing assembly comprising a base and a snap-fitting pin, the base being plugged into the box bottom and the lower end protruding from the box bottom, the snap-fitting pin being plugged into the base and supporting the base expansion on the beak of the rubber dam clip; the box cover being snap-fitted to the box body, the front of the box cover being provided with a third through hole, and the back of the box cover being provided with a fourth through hole. The present invention solves the problems of inconvenience in management, affected service life, and incomplete disinfection caused by the lack of a dedicated container for the disinfection and delivery of existing rubber dam clips.

This invention relates to the field of water conservancy engineering technology, and particularly to a movable dam for water conservancy projects, comprising a rubber dam body; the rubber dam body consists of a laying section and an unfolding section; a plurality of rubber sheets are fixedly connected at equal intervals between the laying section and the unfolding section; a plurality of grooved plates are fixedly connected at equal intervals on the laying section of the rubber dam body; each grooved plate is located on the side of a rubber sheet; a insert plate is inserted into each grooved plate; a stop block is fixedly connected to each insert plate; each stop block is placed on the laying section. After the rubber dam body is laid out manually, the unfolding section located above the grooved plates is lifted manually, and then the insert plate connected to the stop block is inserted into the grooved plate. In this way, the unfolding section, supported by the stop block, is pushed upward to create a gap with the laying section; thus, when the water rises, the water will naturally enter between the laying section and the unfolding section, thereby allowing the water to smoothly support and unfold the unfolding section.

The application relates to the technical field of dental instruments, in particular to an intelligent bite pad integrated with an opening device and a rubber dam clamp, which comprises a rubber dam clamp, the rubber dam clamp comprises two clamping arms and an elastic arc bow, the two clamping arms are connected through the arc bow, a first bite part is arranged on one side of the clamping arms close to the arc bow, a connecting shell is fixedly arranged on the top of the first bite part, a connecting port is arranged on the side, away from the first bite part, of the connecting shell, a second bite part is movably arranged on the connecting shell, an adjusting assembly for adjusting the distance between the first bite part and the second bite part is arranged in the connecting port, and bite grooves are arranged on the sides, away from each other, of the first bite part and the second bite part. During oral treatment, the rubber dam cloth is used to separate the diseased tooth from other oral structures, the diseased tooth is isolated, the patient bites the first bite part and the second bite part, the oral cavity of the patient is supported, and the comfort of the patient is improved.

The utility model belongs to the technical field of rubber barrier clips, and particularly relates to a rear tooth rubber barrier clip stabilizing device. Comprising an elastic metal ring, the elastic metal ring is an open ring, rubber barrier clamping assemblies are fixedly arranged at the two ends of the elastic metal ring, and two stabilizing assemblies are arranged on the inner side of the elastic metal ring. According to the utility model, the stabilizing assembly is arranged to provide upward supporting force for the rubber barrier clamping assembly clamped on the rear teeth, so that the rubber barrier clamping assembly tends to be horizontal, and the rubber barrier clamping assembly in the horizontal state can prevent the rubber barrier clamping assembly from being inclined due to stress and colliding with the gingiva of a treated child; the problem that the tooth treatment progress is affected due to the fact that children feel painful due to the fact that the children do physical reactions when eating the teeth, and the physical reactions of the children not only affect doctors to observe the teeth needing to be treated of the children, but also enable the doctors not to treat the teeth through medical instruments is solved.

The utility model relates to the technical field of medical supplies, and discloses an oral cavity rubber barrier capable of absorbing water, which comprises a fixing frame, the bottom of the fixing frame is fixedly connected with a bottom layer rubber barrier, the bottom of the bottom layer rubber barrier is fixedly connected with a plurality of tooth position sleeves, the top of the fixing frame is fixedly connected with a top layer rubber barrier, and the top layer rubber barrier is fixedly connected with a plurality of tooth position sleeves. A plurality of flow guide holes are formed in the top of the top-layer rubber barrier, a drainage tube is fixedly connected to the interior of the bottom-layer rubber barrier, and a drooping suction tube is fixedly connected to the exterior of the drainage tube. According to the utility model, through the matching of the double-layer rubber barriers and the use of the flow guide holes, liquid contained in the oral cavity can be conveniently sucked out through the drainage tube during use, the drying degree and the operation visual field in the oral cavity treatment process are improved through the design, and the discomfort of a patient in the treatment process is reduced; the safety and the efficiency of dental treatment can be improved, and a doctor can be ensured to operate in a clear and comfortable environment.

The utility model provides a rubber barrier capable of automatically sucking saliva. The rubber barrier comprises a rubber barrier main body, a filter screen and a negative pressure suction tube, the rubber barrier main body comprises a ring cover, a funnel, a rubber barrier and a rubber hose, the rubber barrier is positioned at the upper end of the rubber barrier main body and is in a shape with high periphery and low center, the ring cover is positioned at the lower end of the rubber barrier, and four supporting bulges which are symmetrically distributed about the circle center are connected to an inner ring of the ring cover; the filter screen is fixed on the ring cover through the supporting protrusion, a funnel is connected below the ring cover, a rubber hose is arranged at the bottom of the funnel, and the end of the rubber hose can be tightly connected with a negative pressure suction tube. The device is simple in structure, few in operation equipment, capable of well exposing the oral cavity operation visual field, capable of improving oral cavity diagnosis and treatment efficiency, free of nursing and saliva suction, capable of reducing manual operation and capable of automatically collecting blood, water and material scraps generated in oral cavity treatment in a centralized mode.

The utility model discloses a rubber barrier turning device, which belongs to the technical field of medical instruments and comprises a handheld rod, the handheld rod comprises a turning end and a bent barrier turning end, the barrier turning end is provided with arc-shaped heads with gradually reduced thickness, the arc-shaped heads are arranged in a cross shape, and the central normal of the cross shape coincides with the central axis of the barrier turning end. One straight line in the cross shape is coplanar with the axis of the handheld rod, the inner arc face of the arc-shaped head is opposite to the handheld rod, and the turnover end is provided with a flat head with the thickness gradually reduced. The arc-shaped heads are arranged in a cross-shaped mode, so that barrier turning which is arranged in four directions and can give consideration to a wing method, a bow method and a rubber barrier clamp priority method is formed, the application range is wide, the flat head can effectively turn the edge of a rubber barrier into a gingival sulcus, the problem that a probe is prone to stabbing a patient can be avoided, and the operation is simple and convenient. In addition, the barrier turning and folding actions can be completed by using the rubber barrier turning device, so that the complexity caused by instrument replacement is avoided, the treatment time is saved, and the treatment efficiency is improved.

The utility model discloses a pair of medical forceps, which belongs to the technical field of medical instruments and comprises two forceps bodies hinged with each other through a hinge shaft, each forceps body comprises a forceps head and a forceps handle, a reset spring is arranged between the forceps handles of the two forceps bodies, and a limiting mechanism capable of being unfolded and folded is arranged on the forceps handle of one forceps body. The unfolding and folding path of the limiting mechanism is located on the rotating path of the clamp handle of the other clamp body. When the limiting mechanism is unfolded, the minimum combination angle between the forceps handles of the two forceps bodies can be increased, and when the forceps handles of the two forceps bodies are clenched, a smaller maximum opening angle can be preset for the forceps heads of the two forceps bodies, so that the medical forceps are suitable for small-angle opening application scenes such as a rubber barrier clip; when the limiting mechanism is folded, the minimum combination angle between the forceps handles can be reduced, when the forceps handles are held tightly, a large maximum opening angle can be preset for the forceps heads, the medical forceps are suitable for large-angle opening scenes of medical forceps, for example, the medical forceps are used for forming a sheet clamp, and switching of opening scene requirements of different angles can be achieved through unfolding and folding of the limiting mechanism.

The invention relates to the technical field of dental appliances, in particular to a gum retraction and protection device combined with a rubber barrier, which comprises a support component, extension devices are fixedly mounted on two sides of the support component, contact devices are fixedly mounted at the side ends of the extension devices away from the support component, and each contact device comprises a guide sliding sleeve, a support wing plate and a limiting plate. The supporting wing plates are fixedly installed at the bottoms of the two ends of the guiding sliding sleeve, the limiting plate is rotatably installed between the two supporting wing plates, the extending device comprises a positioning inserting plate, positioning vertical rods and an extending support, the positioning vertical rods are symmetrically and fixedly installed at the top of the extending support, and the positioning inserting plate is slidably connected to the outer rings of the positioning vertical rods in a sleeving mode; the supporting component comprises an auxiliary device, a positioning device and a limiting device. The auxiliary device and the positioning device are slidably inserted into the two ends of the interior of the limiting device. Through the arrangement of the contact device, the extension device and the supporting component, the purpose of integrating the multifunctional limiting function and the quick release function when the rubber barrier clip for gingival retraction is used is achieved.

The utility model discloses a hydrophobic and breathable rubber barrier for oral medicine, and belongs to the technical field of oral medical assistance. In order to solve the problem that a user cannot breathe smoothly due to the airtight characteristic of a rubber barrier, the rubber barrier comprises a rubber barrier perforated plate and rubber barrier cloth, the rubber barrier cloth comprises at least one hydrophobic breathable area, the hydrophobic breathable area is made of an elastic synthetic fiber material, a latex material structure is arranged on the periphery of the hydrophobic breathable area, and the latex material structure corresponds to the position of a punching point area of the rubber barrier punching plate; the hydrophobic breathable area and the latex material structure are fixed through a binder; and the elastic modulus of the elastic synthetic fiber material is lower than that of the latex material. The oral cavity treatment device is used for oral cavity treatment.

The application relates to the technical field of aqueduct reinforcement, in particular to a large-span cultural relic aqueduct shell groove anti-seepage reinforcing structure, which comprises a first shell groove main body, a second shell groove main body is installed on one side of the first shell groove main body, a base plate is arranged between the first shell groove main body and the second shell groove main body, a water-swelling rubber waterstop is installed on the top surface of the base plate, polyurethane mastic is coated on the top surface of the water-swelling rubber waterstop, a tire base cloth is laid on the top surface of the polyurethane mastic, a protective pad is bonded to the inner walls of the first shell groove main body and the second shell groove main body, and a rubber dam bag is laid on the top surface of the protective pad; a limiting structure is installed on the top surface of the first shell groove main body. The aqueduct clamps the two ends of the rubber dam bag through the pressing plate and the fixing block, so that the rubber dam bag is fixed, the rubber dam bag is not damaged during the fixing, the integrity of the rubber dam bag can be guaranteed, the fixing effect is stronger, and the assembly is convenient.

The utility model discloses a gum retraction and protection device combined with a rubber barrier, which comprises a rubber barrier clamp, a mounting block, a push rod, a first locking mechanism, a gum pushing sheet and the like, before subgingival defect repair, the rubber barrier clamp connected with the mounting block is used for fixing the rubber barrier by a barrier splitting method, and a clamping arm connected with the mounting block is positioned on the cheek side, so that the rubber barrier can be fixed by the rubber barrier clamp; in the state, the gingival pushing piece faces one side of the teeth, the push rod is adjusted to drive the gingival pushing piece to be close to the tooth body, so that the gingival pushing piece is arranged in the gingival sulcus and abuts against the subgingival defect section of the tooth body tissue, and at the moment, the first locking mechanism is used for locking the relative position of the push rod and the mounting block so as to keep the support of the gingival pushing piece to the tooth body; and under the condition that an operator does not need to additionally occupy hands, the gum pushing sheet is continuously and stably supported.

The invention relates to the technical field of medical instruments, in particular to a supporting device for oral cavity root canal therapy, which comprises two tooth clamping pieces and an oral cavity rubber barrier, the inner ends of the two tooth clamping pieces are hinged, an angle limiting piece is arranged between the two strip-shaped tooth clamping pieces, one side of the oral cavity rubber barrier is clamped with the two strip-shaped tooth clamping pieces, and the other side of the oral cavity rubber barrier is clamped with the two strip-shaped tooth clamping pieces. A tooth groove hole group is formed in the other side of the oral cavity rubber barrier, a micro LED lamp is arranged on the tooth clamping piece, and a flexible sensor is arranged on the oral cavity rubber barrier. The oral cavity rubber barrier, the micro LED lamp, the tooth clamping piece and the flexible sensor are highly integrated, the rubber barrier can be stably installed in the oral cavity of a patient through the angle limiting piece, the oral cavity of the patient can be stably supported, operation flushing waste liquid and saliva in the oral cavity can be discharged in time during treatment, operation of medical staff is facilitated, and the operation efficiency is improved. A light source can be provided for an irradiation operation area, the compression force on the mucous membrane of a patient is monitored, the operation convenience and the patient experience are greatly improved, and wide clinical application prospects are achieved.

The invention discloses a fishway structure, and relates to the technical field of fishways, the fishway structure comprises a fishway and a connecting structure, the fishway is detachably connected with a side pier, an upstream vertical quay wall and a downstream vertical quay wall of a rubber dam through the connecting structure, and the fishway is a partition plate vertical seam type fishway. The invention aims to provide the fishway structure, the fishway structure can be mounted at positions such as a rubber dam without a fishway, and the problem of fish migration is solved.

The utility model relates to the technical field of root canal treatment moisture insulation devices, in particular to a portable root canal treatment moisture insulation device for the department of stomatology, which comprises a rubber barrier and a support, the support is arranged on the surface of the rubber barrier, the cambered surface of the support is fixedly connected with a supporting column, the side surface of the support is provided with a connecting assembly, and the connecting assembly comprises a rotating shaft. A mounting cavity is formed in the side surface of the support, the rotating shaft is rotationally connected with the inner wall of the mounting cavity, a U-shaped frame is fixedly connected to the cambered surface of the rotating shaft, a connecting sleeve is fixedly connected to the end, away from the support, of the U-shaped frame, a clamping pin is slidably connected to the inner wall of the connecting sleeve, and a limiting spring is fixedly connected to the end, away from the support, of the clamping pin. According to the utility model, through the arrangement of the connecting assembly, the bracket of the moisture insulation device can be folded, so that the problems of large occupied storage space and inconvenience in carrying caused by the integrated design of the bracket are reduced, and the portability of the moisture insulation device is further improved.

1. The name of the design product: rubber dam. 2. The use of the design product: used in the process of dental treatment to isolate the teeth needing treatment, providing a clean operating environment for the doctor without contamination of saliva, blood, gingival crevicular fluid and other body fluids. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

The present application provides a rubber dam composite material with excellent air tightness and long service life, which is prepared from the following raw materials: 100 parts of raw rubber, 40-100 parts of reinforcing filler, 2-15 parts of activator, 4-30 parts of plasticizer, 0-10 parts of magnesium oxide, 1.0-10.0 parts of accelerator, 0.5-10 parts of vulcanizing agent and 0.5-10 parts of adhesive; the raw rubber comprises butyl rubber and a second rubber component in a mass ratio of (10-90):(10-90), the second rubber component is ethylene-propylene-diene rubber and / or natural rubber; and the adhesive is selected from tackifying resin and modified phenolic resin. The rubber dam composite material has excellent aging resistance and ultraviolet resistance, and excellent adhesion between different rubber layers (or with polyester or nylon impregnated sailcloth) due to the combined action of the above-mentioned specific types and amounts of raw materials.

The invention provides a rubber dam water filling and draining facility, and relates to the technical field of rubber dam engineering.The rubber dam water filling and draining facility comprises a rubber dam, two sets of mounting plates are arranged at the centers of the two ends of the inner side wall of the rubber dam, two sets of water filling pipes are connected to one side wall of the rubber dam, and threaded covers are in threaded connection with the outer side walls of the water filling pipes; the device further comprises a supporting mechanism, the supporting mechanism comprises middle pipes, the side walls of the two sets of mounting plates are each connected with a set of middle pipes, multiple sets of communicating pipes are further arranged on the side walls of the two sets of mounting plates, each set of communicating pipes communicate with the corresponding middle pipes through the mounting plates, and a middle cylinder is connected between the communicating pipes on the two sides. Sliding plates are slidably connected to the two ends in the middle cylinder, the side walls of the sliding plates are connected with compressed springs, the other ends of the compressed springs are fixedly connected with the inner side wall of the middle cylinder, and a water storage cavity is formed between the other side walls of the sliding plates and the inner side wall of the middle cylinder. The problem that a traditional water filling type rubber dam is impacted by water flow to generate large-amplitude deformation and shaking is effectively solved, and the impact resistance and the operation stability of the rubber dam are improved.