11results about How to "Increase the suction area" patented technology

The utility model relates to the field of slurry wall protection drilling, especially relates to a slurry separation tank for reverse circulation drilling machine, including primary sedimentation tank, secondary sedimentation tank, residue storage tank, slurry input pipe, sand separating mechanism and slurry output pipe, secondary sedimentation tank is connected with primary sedimentation tank, residue storage tank is connected with secondary sedimentation tank, and the lateral wall of primary sedimentation tank is provided with overflow, and overflow is communicated with secondary sedimentation tank, slurry input pipe is connected with primary sedimentation tank, and slurry input pipe is used for injecting slurry to primary sedimentation tank, sand separating mechanism is connected with secondary sedimentation tank, and sand separating mechanism is communicated with residue storage tank, slurry output pipe is communicated with secondary sedimentation tank, and the sludge suction efficiency in secondary sedimentation tank is increased by setting conical fairing on the circulating pipeline, the slurry that is extracted from pile foundation hole is discharged into primary sedimentation tank through slurry input pipe and carries out preliminary deposition, the slurry after preliminary deposition enters secondary sedimentation tank through overflow, and the drilling residue of smaller particle is removed by slurry through sand separating mechanism.

This utility model relates to a saliva suction device for patients with oral intubation, including an occlusal pad that extends into the patient's oral cavity. The oral intubation tube is fixed on the occlusal pad and extends into the patient's oral airway. A suction tube is installed on the occlusal pad and can slide and adjust on the occlusal pad. The end of the suction tube extending out of the occlusal pad is connected to a negative pressure suction device to perform suction operation. A counterweight is installed at the end of the suction tube, allowing the suction tube to move on the occlusal pad and fall into the oral cavity. The negative pressure suction device is activated to perform suction operation of saliva in the oral cavity. Through the gravity-coordinated design of the counterweight and the suction tube, the end of the suction tube can automatically conform to the oral anatomical structure, covering hidden areas that are difficult to reach by traditional equipment without manual adjustment, thereby increasing the effective suction area.

The utility model discloses a steel plate rust removal mechanism for ship building and repairing, and relates to the technical field of steel plate rust removal. Comprising a movable support, the movable support is provided with a rust removal mechanism used for a steel plate for ship building and repairing, and the rust removal mechanism comprises the structure that when a sliding rail support rotates, the angle of a grinding wheel at the lower end of the sliding rail support can be adjusted, the grinding wheel is fixed to be in a vertical state, and in the ship building and repairing process, the working faces of the steel plate are diversified; a large number of horizontally-placed steel plates and vertical faces such as the side wall of the ship exist, through the rapid action of a second electric push rod, the grinding wheel can be rapidly switched between the two modes of horizontal grinding for plane steel plate rust removal and vertical grinding for ship side wall rust removal, manual disassembly and re-installation of grinding equipment are not needed, and the working efficiency is improved. The operation conversion time is greatly saved, the overall rust removal efficiency is improved, the rust removal requirements of steel plates at different positions and angles can be met, the working efficiency is improved, and multiple purposes are achieved through one machine.

The utility model relates to a kind of nonwoven fabric paving net negative pressure air suction device of adjustable, including negative pressure box, the outside of the negative pressure box is fixedly connected with negative pressure pipe, the top of the negative pressure box is set to opening, the top of the negative pressure box is fixedly connected with support plate, multiple sets of second negative pressure holes are equipped on the support plate, the position of corresponding second negative pressure hole on the support plate is equipped with sliding groove, the sliding groove is communicated with second negative pressure hole, sliding connection is achieved in the sliding groove with sliding plate, the outside of the sliding plate is fixedly connected with multiple sets of adjusting plate;In the utility model, according to the different types of nonwoven fabric adjustment air suction area, push sliding plate to slide, sliding plate drives adjusting plate to slide, adjusting plate slides adjustment, so second negative pressure hole's air suction area can be adjusted;Again open negative pressure fan, negative pressure fan is inhaled air in negative pressure box by negative pressure pipe, generates negative pressure;So sliding plate can be flexibly changed air suction area size in sliding process.

The utility model discloses a melon interspecific hybrid tissue culture seedling domestication device relates to plant seedling domestication device technical field. Its structure includes nutrient solution groove, matrix groove, double -deck light -transmitting light -supplementing cover and ventilation adjustment assembly, and the matrix groove is installed in the nutrient solution groove, and ventilation adjustment assembly is installed on the nutrient solution groove and matrix groove, and ventilation adjustment assembly divides matrix groove and is divided into a plurality of seedling domestication area, and every seedling domestication area installs a double -deck light -transmitting light -supplementing cover. The utility model discloses through double -deck light -transmitting light -supplementing cover and temperature feedback system realizes environment accurate control, adopts M shape cotton line, filter cotton section constructs microcirculation nutrition supply system, and combines the partition formula modular design and promotes space utilization rate and operating efficiency, and the device is verified through the test, can make interspecific hybrid domestication survival rate to improve, and domestication period shortens, provides efficient technical solution for melon interspecific hybrid breeding.

The utility model discloses a dust removal device for refractory material production, which relates to the technical field of dust removal equipment and comprises a conveying base, a conveying belt is mounted in the conveying base, and a dust removal mechanism is arranged above the conveying base. And the dust removal mechanism comprises a dust removal box, a dust removal roller is rotationally arranged on the inner wall of the dust removal box, a dust suction pipe is fixedly arranged on the inner wall of the dust removal roller, a plurality of dust suction holes are formed in the surface of the dust suction pipe, and a driving box is fixedly arranged on the back face of the dust removal box. The dust removal device has efficient dust removal capacity, the dust removal mechanism is arranged and comprises a dust removal box, a dust removal roller, a dust suction pipe, a dust suction hole and the like, and the dust removal mechanism is matched with a driving motor and a dust suction pump to work, so that the dust removal roller can be used for driving a strip-shaped shifting piece to turn over materials; dust generated on the refractory material production line is efficiently adsorbed and removed, the dust suction holes are evenly distributed in the surface of the dust suction pipe, the dust suction area is increased, and the dust removal efficiency is improved.

This invention discloses a waterproof and heat-dissipating integrated cable branch box structure, relating to the field of cable branch boxes. It includes a supporting base, a waterproof base fixedly installed on the upper surface of the supporting base, and a branch box fixedly installed on the upper surface of the waterproof base. An opening is provided in the center of the front face of the branch box, and a door is rotatably installed on the side of the front face of the branch box near the opening via a bearing. Several heat dissipation holes are provided through the bottom of both sides of the branch box. The waterproof mechanism solves the problem of backflow into the bottom of existing branch boxes. When water accumulates outdoors, a hollow float, driven by buoyancy, causes the connecting frame and waterproof cloth to rise synchronously. The folded waterproof cloth unfolds to form a ring-shaped waterproof barrier around the bottom of the branch box, preventing water from flowing back to the bottom of the box. The drainage holes can promptly drain small amounts of water from the fixed inner groove, preventing the waterproof cloth from aging due to long-term soaking, improving waterproof reliability, reducing component failures caused by rainwater immersion, and lowering the maintenance frequency.

The utility model relates to the technical field of material conveying, and discloses a full-automatic reversible belt conveyor with bins, which comprises a frame, a conveying mechanism is arranged above the frame, a dust cover is fixedly mounted at the top end of the frame, and dust removal mechanisms are symmetrically arranged at two ends of the frame. Discharging pipes are fixedly connected to discharging grooves in the two ends of the rack in a sleeving mode, the discharging pipes are sleeved with dust suction pipes, and one sides of the dust suction pipes are fixedly connected with dust conveying pipes in a sleeving mode; through the annular dust collection channel formed by the dust collection pipe and the discharging pipe, the dust collection area is greatly increased, dust generated in the discharging process can be captured in all directions, the dust cannot escape, a barrier is formed by combining an air curtain formed by airflow output by the fan, the dust is firmly limited in a specific area, the dust is prevented from being diffused to the surrounding environment, and the dust collection effect is good. Through dual protection of negative pressure dust collection and the air curtain, the dust removal efficiency is far higher than that of a traditional single dust collection mode, the dust content in a workshop can be effectively reduced, and the conveying environment is kept clean.

The invention discloses a vacuum air exhaust structure of a side feeding machine, which comprises a machine barrel, a first filter assembly and an air exhaust assembly, the air exhaust assembly comprises a branch air pipe connected with an air outlet of the first filter assembly, and the vacuum air exhaust structure is characterized in that the upper side and the lower side of the machine barrel are both provided with exhaust ports; the number of the first filtering assemblies is two, the first filtering assemblies are arranged in the two exhaust ports respectively, the number of the branch air pipes is two, and the air inlet ends of the branch air pipes are connected with the air outlets of the two first filtering assemblies respectively, so that an up-down confluence type flow channel is formed. The two filtering assemblies which are symmetrically arranged up and down are adopted to form a confluence type flow channel, so that gas in the machine barrel can be simultaneously pumped away from the upper direction and the lower direction, the gas pumping area is larger, the blocking time of superfine materials is effectively prolonged, and frequent replacement and cleaning of the filtering mechanism are reduced. Meanwhile, due to the super-large air exhaust characteristic of simultaneous air exhaust in the vertical direction, the machine barrel is filled with negative pressure, the materials are adsorbed into the machine barrel, and effective conveying of the screw is facilitated.

The utility model belongs to the field of circuit breakers, and particularly relates to a miniature circuit breaker, which comprises a shell, an operating mechanism, a moving contact, a static contact, an arc extinguish chamber, a first wiring terminal, a second wiring terminal and an electromagnetic tripping mechanism, the electromagnetic tripping mechanism comprises a magnet yoke, an armature and a torsion spring, the magnet yoke is arranged in the shell, the armature is rotatably arranged on the magnet yoke, and the torsion spring is arranged in the shell. An iron core sheet is arranged between the magnet yoke and the wiring straight plate part, one end of the magnet yoke, corresponding to two sides of the accommodating groove, is vertically bent to form two strip-shaped attraction parts matched with the armature, and one end of the armature is provided with a square attraction part attracted with the two strip-shaped attraction parts; the electromagnetic tripping mechanism adopts a clapping type structural design and can meet the use requirement of a large-current miniature circuit breaker, the magnet yoke adopts a symmetrical magnetic circuit design, magnetic leakage is avoided, a concentrated magnetic field acts on the armature, and the attraction area of the magnet yoke and the armature can be increased, so that the attraction force of the magnet yoke to the armature is stronger, and the tripping action of the armature is more sensitive.

The utility model relates to the related technical field of fiber recovery, in particular to a fiber recovery device which comprises a recovery box body, a gathering mechanism is arranged on one side of the recovery box body, an air suction pipe is arranged at the top of the recovery box body, and an adjusting mechanism is arranged at the bottom of the air suction pipe. According to the utility model, through the arrangement of the gathering mechanism, the cleaning brush is driven by the servo motor and the electric push rod to gather waste materials on the two sides to the position near the recycling bin body, after the waste materials are gathered, the air suction pipe is matched with the adjusting mechanism to adjust the size of the air suction opening for suction, and when fiber waste materials with large thickness are accumulated, the air suction opening can be enlarged; the air suction area is increased, for a thin waste material layer, an air suction opening is reduced, suction force can be concentrated, fibers can be sucked more effectively, the situation that the waste materials cannot be sucked due to the fact that the suction force is dispersed due to the fact that the air suction opening is too large is avoided, and compared with a single dust suction mode, large-area dispersed fiber waste materials can be treated more rapidly, and the overall recovery efficiency is effectively improved.