12results about How to "Prevent tear damage" patented technology

The utility model discloses a soilless culture degradable bag which comprises a bag body, a reinforcing edge is arranged at the top of the bag body, guide holes are formed in the two ends of the two sides of the bag body, a lifting rope is arranged on the inner sides of the two sets of guide holes in the same side in a sleeved mode, guide blocks are arranged in the middles of the two sides of the bag body, and a plurality of sets of air holes are formed in the inner sides of the guide blocks. A filter screen is arranged in the middle of the bottom of the inner side of the bag body, and a plurality of groups of drainage holes are formed in the bottom of the filter screen; the ventilation holes, the guide blocks, the filter screen and the drainage holes are matched with one another, so that when the device is used for cultivating plants, the roots of the plants can be ventilated through the ventilation holes, meanwhile, the plants can be ventilated through the ventilation holes in the planting process, the inclined structures are matched with the guide blocks to guide flow of the substrates, the cultivation substrates can be prevented from leaking outwards, and the cultivation efficiency is improved. When plants are watered or nutrient solution is added, redundant water and nutrient solution can be filtered by the filter screen and discharged outwards through the drain holes.

The invention discloses equipment and a method for preparing superfine calcium carbonate from fly ash water washing liquid based on a membrane separation technology, relates to the technical field of fly ash water treatment, and aims to solve the technical problem of low treatment efficiency of the fly ash water washing liquid, and the equipment comprises a reaction tank and a membrane separation mechanism. The spiral filter membrane is used for filtering the fly ash water washing liquid, and the movable assembly is arranged to move on the transverse shaft assembly to drive the filter membrane to deform, so that the filter membrane can form a fly ash water washing liquid filtering form in which spiral surfaces are in contact with each other and a spiral backwashing form in which two ends are relatively far away from each other; when suspended matters in the fly ash water washing liquid are filtered, the fly ash water washing liquid enters a reaction tank after being filtered by the membrane separation mechanism in a filtering form, and when backwashing is carried out, filter hole blockages are easily flushed out and are led out through the spiral surface of the filter membrane, so that the backwashing effect is improved, and the treatment efficiency of the fly ash water washing liquid is improved; the technical problem that the treatment efficiency of the fly ash washing liquid is low is solved.

The utility model relates to the technical field of liquid crystal glass plate manufacturing, and particularly discloses a supporting and adjusting device and platinum equipment, the supporting and adjusting device comprises a supporting base, a guide rod, a disc spring adjusting assembly, a clamping assembly and a horizontal adjusting piece; the guide rod is arranged on the supporting base and extends in the vertical direction. The disc spring adjusting assembly is arranged on the guide rod; the clamping assembly is arranged at the driving end of the disc spring adjusting assembly; the disc spring adjusting assembly always has the movement trend of driving the clamping assembly to be away from the supporting base. The horizontal adjusting piece is movably arranged on the guide rod. According to the utility model, the levelness of the platinum flange can be adjusted by adjusting the height of the horizontal adjusting piece, if the stirring barrel is heated and expanded to drive the platinum flange to ascend, the wiring part of the platinum flange can be driven to synchronously ascend and move by upwards adjusting the horizontal adjusting piece and the disc spring adjusting assembly, so that the overall levelness of the platinum flange is ensured; and the situation that after the platinum flange inclines, attached installation of the platinum flange and the platinum heating cover plate above the platinum flange is affected is prevented.

The utility model relates to the technical field of polishing rod discloses a kind of polishing rod to avoid skin tearing breakage, including polishing rod body, the polishing rod body outer wall is fixedly connected with silica gel ring, the silica gel ring outer wall is fixedly connected with skin grinding ring, the polishing rod body inside is provided with center support layer, the center support layer outer wall is fixedly connected with buffer elastic layer, the buffer elastic layer outer wall is fixedly connected with fiber reinforced layer, the fiber reinforced layer outer wall is fixedly connected with adhesion stable layer.In the utility model, center support layer is main force structure, buffer elastic layer plays the effect of unloading buffer, fiber reinforced layer avoids surface skin breakage due to stretching, adhesion stable layer is viscoelastic polyurethane, for firmly combine outer skin layer and lower structure, reach the effect to avoid skin tearing breakage, solve the problem that traditional polishing rod is easy to tear and break when polishing, improve the durability of polishing rod.

The utility model discloses high-performance foaming cotton which comprises a foaming cotton body, the foaming cotton body is arranged in three layers, the top layer of the foaming cotton body is a first foaming cotton layer, and the bottom layer of the foaming cotton body is a second foaming cotton layer. The opposite surfaces of the first foamed cotton layer and the second foamed cotton layer are fixedly connected with a glass fiber layer, the thickness of the second foamed cotton layer is twice that of the first foamed cotton layer, and the second foamed cotton layer can provide better supporting force, increase the overall compressive strength, better absorb and disperse impact force and improve the impact resistance of the material; a good heat insulation effect can be achieved, and the material is helped to keep stable in a high-temperature environment. According to the foaming cotton, the foaming cotton is arranged in two layers with different thicknesses, and the glass fiber layer is additionally arranged between the two layers, so that the use strength of the whole foaming cotton can be improved, the foaming cotton is prevented from being torn and damaged during extrusion or stretching, and the service life of the foaming cotton is prolonged.

The present invention belongs to the technical field of metal packaging can extrusion molding, and specifically relates to an explosion-proof inflation device and a metal can extrusion molding tool using the same. The present invention includes an inflation nozzle whose one end is connected to the air source air path and the other end is connected to the inner airbag air path, and an outer airbag sleeved on the outer side of the inner airbag; the mounting end surface of the inner airbag is sealed and matched with the end of the inflation nozzle, and a buffer gap is provided between the inner airbag and the outer airbag; the outer airbag is connected to the inflation nozzle gap through an arc-shaped matching block, and a plurality of exhaust grooves are arranged circumferentially at the connection part between the outer airbag and the inflation nozzle, and the notch of the exhaust groove is connected to the buffer gap air path. The present invention adopts an inner and outer layer of rubber inflatable bags, and there is a buffer gap between the two layers of inflatable bags in an uninflated and pressurized state, and an exhaust groove for discharging the gas in the buffer gap is provided between the outer airbag and the inflation nozzle, thereby further solving the explosion problem caused by scratches on the inflatable bag.

The invention relates to the technical field of packaging film coating, and discloses a coating device for cotton packaging film production, a bottom frame is fixedly connected to the middle of the top of a base, a liquid container is fixedly connected to the top end of the interior of the bottom frame, and a discharging control mechanism is fixedly connected to the interior of the liquid container; coating protection mechanisms are fixedly connected to the front side and the rear side of the bottom frame correspondingly, a tension mechanism is fixedly connected to one side of each coating protection mechanism, and film conveying equipment is fixedly connected to the left end and the right end of the top of the base correspondingly; and the coating protection mechanism comprises a side supporting plate. According to the coating device for production of the cotton packaging film, the discharging control mechanism is arranged to drive the liquid outlet cylinder at the bottom end of the discharging control mechanism to move up and down, so that the position change of a liquid outlet hole in the liquid outlet cylinder and the interior of the liquid container is changed, and the discharging amount of coating liquid is adjusted when the surface of the packaging film is coated; and coating requirements of different thicknesses can be carried out according to the packaging films with different thicknesses.

The invention relates to the technical field of novel heat preservation of solar greenhouses in facility agriculture, in particular to a design and manufacturing method of an inflatable heat preservation quilt of a solar greenhouse. The inflatable solar greenhouse heat preservation quilt is used for replacing a traditional solar greenhouse heat preservation quilt, so that on one hand, the solar greenhouse heat preservation quilt is extremely light; on the other hand, due to the fact that the inflatable sunlight greenhouse heat preservation quilt can naturally slide into the storage groove in the bottom of the double-layer framework under the action of gravity after being deflated, tearing damage to the heat preservation quilt possibly caused by traction of an electric mechanical roller shutter is avoided, and the service life of the heat preservation quilt is prolonged; meanwhile, the inflatable heat preservation quilt is convenient to operate and use and good in heat preservation effect, so that the inflatable heat preservation quilt is quite suitable for application and popularization, powerful technical support can be provided for greenhouse heat preservation, and then the production efficiency of facility agriculture is improved.

The tool comprises a base, a product positioning plate, an injection molding product, a positioning and clamping mechanism and an automatic cutting assembly, the base comprises a bottom plate and side plates, the side plates are symmetrically installed on the two sides of the bottom plate, the automatic cutting assembly is arranged in the middle of the interior of the bottom plate, the product positioning plate can correspondingly cover the two side plates, and the product positioning plate can correspondingly cover the two side plates. The product positioning plate is parallel to the bottom plate, a cutting window opposite to the automatic cutting assembly is arranged in the middle of the product positioning plate, product containing areas are arranged on the two sides of the cutting window, the two sheet-shaped injection molding products are connected through a sprue material, the two injection molding products are correspondingly placed in the product containing areas on the two sides, and the sprue material is aligned with the cutting window. The positioning and clamping mechanism abuts against the two injection molding products from the upper portion, and the automatic cutting assembly penetrates through the cutting window to conduct automatic stamping and cutting on the connecting points of the sprue materials and the injection molding products. The tool is low in manufacturing cost, easy to operate, smooth in notch and capable of preventing products from being damaged by stress concentration.

This utility model provides a scraping mechanism for a belt conveyor, relating to the field of belt conveyor technology. It includes a support frame, with a conveyor belt installed on the inner side of the support frame. A scraping and cleaning assembly is located on the lower side of the conveyor belt. The scraping and cleaning assembly includes a support plate installed on the right end of the support frame, a support spring on the upper side of the support plate, a scraper mounted on the top of the support spring, a cleaning frame on the left side of the support plate, a high-pressure nozzle installed inside the cleaning frame, and a cleaning water tank on the lower side of the cleaning frame. When the conveyor belt is running, the material adhering to the conveyor belt is scraped off by the scraper, ensuring the cleanliness of the conveyor belt. When encountering material that is too tightly adhered to be easily scraped off, the arc-shaped structure at the top of the scraper will be stressed, causing the support spring to contract downwards, thereby driving the scraper downwards and preventing excessive rigid contact that could cause tearing or damage to the conveyor belt.

The application discloses a kind of multi-channel independent partition active drainage tube, belong to medical instrument technical field.Drainage tube includes catheter main body, intra-abdominal bifurcated portion, abdominal cavity outside bifurcated portion, drop flushing component, negative pressure drainage component and shunt controller.Intra-abdominal bifurcated portion includes four branch pipes of coaxial double-cannula structure;Four independent longitudinal channels are arranged in catheter main body, four intra-abdominal branch pipes and four extracorporeal branch pipes are communicated one by one and isolated from each other respectively.The application realizes "one pipe four areas" and accurate partition control, and medical staff can intuitively monitor the state of each partition through the pressure indicator of shunt controller, and manually intervene when necessary by operating independent regulating valve and drop flushing component, to realize active flushing suction and online backwashing to prevent blockage.The application can effectively prevent and treat multiple anastomotic fistula after complex operation, avoid the risk of pressure or pipe blockage between different areas, and reduce the rate of secondary operation.

This utility model proposes an integral inclined laying and fixing structure of composite geomembrane between the dam body and the dam-penetrating structure, belonging to the field of water conservancy engineering technology. It mainly includes a reservoir connecting section culvert structure one, a reservoir connecting section culvert structure two, anchor bolts, nuts, stainless steel pressure plates, neoprene rubber gaskets, and composite geomembrane. The connection between the composite geomembrane on the dam slope and the structure adopts an anchoring + weight connection method. Before laying the membrane, it is ensured that the upstream slope of the dam and the upstream of the outlet structure two are on the same slope. Only two layers of geomembrane are laid at the bottom plate of the outlet structure two. Before laying the membrane, it is ensured that the upstream slope of the dam and the outlet of the outlet culvert are on the same slope. The geomembrane is laid flat, so that the geomembrane is in a stable stress state and avoids tearing and damage.