82results about How to "Effective blocking" patented technology

The utility model relates to the technical field of transportation plate trailers, in particular to a transportation plate trailer with a protection structure, and aims to solve the problem that the conventional transportation plate trailer often lacks an effective protection structure when being used for transporting goods. The problems that in the transportation process, due to the situations of road bumping, sudden braking, turning and the like, goods are likely to shake, collide and even fall off, the goods are damaged, and economic losses are brought to enterprises are solved. Comprising a supporting plate, moving wheels and a pulling handle, the moving wheels are fixedly installed at the bottom end of the supporting plate, the pulling handle is fixedly installed on the right side of the top end of the supporting plate, and a protection mechanism is arranged on the outer side of the supporting plate; the protection mechanism further comprises a U-shaped plate, sliding blocks, a fixing frame and a locking rod, sliding grooves are symmetrically formed in the front side and the rear side of the supporting plate, locking through holes are symmetrically formed in the right side of the U-shaped plate, and the sliding blocks are symmetrically installed in the bottom area of the inner wall of the U-shaped plate.

The utility model discloses a kind of electric power cable distribution box capable of realizing cable butt joint, including box, the both sides of box are fixedly installed with several installation rings, the top of box is fixedly installed with ceiling, the bottom of ceiling inner cavity is fixedly installed with air pump, the inside of ceiling is fixedly installed with folding pipe, several air holes are arranged in the inside of folding pipe, the inside of folding pipe both ends is fixedly installed with metal mesh plug, the inside of box is fixedly installed with two groups of mounting plate, box inside is fixedly installed with clamping wire tube. By the air pump being set, the input end of air pump extracts the airflow inside box, airflow enters the cone box inside through the air hole of bottom plate at this time, and enters the air pipe inside through through-hole, after filtering sundries and dust by the metal mesh cylinder and dust filter cylinder in the air pipe inside, airflow is introduced into the box inside, airflow enters the inside of folding pipe through air hole, and is discharged to outside through folding pipe, increase the heat dissipation efficiency and protection degree, overall use effect is good.

This invention discloses a nanodecoy receptor that blocks the IL-17 signaling pathway, including IL-17RA-CMVs carrying a fusion sequence of PDGFR-TMD and IL-17RA. This invention also provides a method for preparing the aforementioned nanodecoy receptor that blocks the IL-17 signaling pathway, comprising the following steps: S1. Using genetic engineering, IL-17RA and PDGFR-TMD are fused and designed, and a lentivirus carrying the IL-17RA and PDGFR-TMD fusion sequence is coated onto mammalian cells. A cell line stably expressing the IL-17RA and PDGFR-TMD fusion sequence is established in mammalian cells through lentivirus transfection; S2. The cell line from step S1 is taken, and cell membrane vesicles are prepared by ultrasonic disruption and permeabilization extrusion until the fusion sequence of IL-17RA carrying PDGFR-TMD is displayed at high density and correctly oriented on the outer surface of the cell membrane vesicles, forming IL-17RA-CMVs. The nano-decoy receptor of the present invention can efficiently and broadly block the interaction between IL-17 and IL-17RA, avoid such systemic side effects, and achieve treatment only through local minimally invasive delivery, thus solving the side effects problem caused by existing systemic drug administration.

The invention discloses a water-swelling elastic plugging agent for a water-based drilling fluid and a preparation method of the water-swelling elastic plugging agent. The water-swelling elastic plugging agent comprises the following components in parts by weight: 100 parts of a polyolefin elastomer matrix material; 15 to 20 parts of a reinforced matrix material; 0.8 to 1.5 parts of a polyolefin elastomer matrix material cross-linking agent; 8 parts to 15 parts of a reinforcing agent A; 20 to 30 parts of a reinforcing agent B; 15 to 30 parts of super absorbent resin; 15 to 20 parts of a plasticizer; 0.2 to 0.8 part of an isolating agent; 0.5 to 1 part of an anti-aging agent; the plugging agent provided by the invention is simple in preparation process, not only is beneficial to industrial production, but also is convenient to prepare plugging slurry on site, can achieve a good plugging effect, and provides an effective technical means for well leakage treatment.

This utility model provides a sealing device for a dewatering well in a structural base plate, comprising a pre-embedded sleeve, a sealing plate, a first water-stop ring, and an operating rod. A pre-drilled hole is provided on the inner bottom plate of the pre-embedded sleeve. The sealing plate is fixed inside the pre-embedded sleeve by a limiting mechanism to seal the pre-drilled hole. The first water-stop ring is sandwiched between the inner bottom plate of the pre-embedded sleeve and the sealing plate around the pre-drilled hole. The operating rod is detachably mounted on the sealing plate to move the sealing plate to the limiting mechanism. Compared with existing technologies where welding quality is difficult to control, this utility model, through the synergistic effect of the above structures, can effectively seal the dewatering well, preventing seepage and leakage in the later stages of sealing, thus improving project quality. Furthermore, this sealing device has low environmental requirements and can be used even when the groundwater level is high or when there is confined water in the strata.

This utility model discloses a well plate structure for intestinal flora culture, belonging to the field of flora culture experimental technology. It includes a culture plate and multiple culture containers. The culture plate has a placement hole that matches the shape of the bottom end of the culture container. The outer side wall of the bottom end of the culture container and the inner side wall of the placement hole are fixed by threaded engagement. The top of the culture container is provided with a detachable top cover. The center of the top cover has a puncture hole for the intestinal flora extraction syringe to enter and exit. An extension tube is connected to the puncture hole. The bottom end of the extension tube is frustoconical and the inner wall is provided with a silicone layer. The bottom of the culture container is provided with a plug that matches the opening of the bottom end of the extension tube. By utilizing the sealing fit between the top cover and the plug and the detachable design, the anaerobic environment required for intestinal flora culture is ensured, while avoiding the puncture problem caused by multiple layers of sealing.

The utility model discloses a movable regulation and control fence, which relates to the technical field of snow-proof fences, and comprises support bottom plates, each support bottom plate is provided with a connecting part, and the connecting parts are used for connecting two adjacent support bottom plates when a plurality of support bottom plates are arranged; and the connecting frame is detachably connected to the supporting bottom plate, a plurality of regulation and control blades are arranged in the connecting frame, the regulation and control blades are elastically connected with the connecting frame, and the regulation and control blades are used for deflecting, opening and closing in a self-adaptive mode in the connecting frame along with the strength of snow blown by wind. A stable rigid supporting structure is formed after the supporting bottom plates are connected into a whole, the connecting frame is stably supported, the blades are adjusted and controlled to be opened and closed in a self-adaptive mode along with the strength of snow blown by wind, on the basis that the wind and the snow are effectively blocked, the situation that high-strength wind and the snow topple over is prevented, and after snow blown by the wind is prevented, the snow is prevented from falling off. And the connecting frame and the supporting bottom plate are connected and detached and then recycled, and efficient installation and detachment of the snow protection fence are achieved.

The utility model relates to the technical field of soil detection boxes, in particular to a soil detection box for environmental protection, which comprises a box body, a box cover, a detector, a material bottle and a tool plate, the box cover is rotatably connected with the upper surface of the box body, the detector is fixedly connected inside the box body, the material bottle is placed inside the box body, and the tool plate is arranged on the box body. The tool plate is fixedly connected to the interior of the box body, a positioning device is fixedly arranged in the box body, the positioning device comprises a placing plate and a connecting plate, the placing plate is fixedly connected to the bottom in the box body, the connecting plate is fixedly connected to the upper surface of the placing plate, and a pressing plate is slidably connected to the surface of the connecting plate; the material bottle is placed in the placing plate, the pressing plate abuts against the upper end of the material bottle, a positioning groove is formed in the surface of the connecting plate, and a fixing block is fixedly connected to the upper surface of the pressing plate. According to the positioning device, the material bottle can be positioned, and the stability of equipment is improved.

The cutting device comprises a machining table, the upper side of the machining table is fixedly connected with a supporting block, the supporting block is fixedly connected with a first electric push cylinder, the output end of the first electric push cylinder is fixedly connected with a protective cover, and an observation opening is formed in the front side of the protective cover. According to the cutting device, the first electric push cylinder, the protective cover, the observation opening, the protective glass, the cutting assembly and other components are arranged, the protective cover can be pushed through the first electric push cylinder to conduct covering, the cutting assembly conducts cutting in the protective cover, and therefore generated sparks can be effectively blocked in the cutting process and prevented from splashing to hurt people; and meanwhile, the protective glass is arranged at the observation opening, so that the intensity of flame light during cutting can be reduced, the damage of strong light to the vision of the operator is avoided, the operator can observe the cutting condition more clearly and comfortably, and accurate operation is facilitated.

This invention relates to a metal ion crosslinking stabilizer. It primarily addresses the problems of existing gel profile control agents, such as short gelation time, easy damage to medium and low permeability layers during injection, and inability to achieve deep reservoir sealing. Its components and proportions by mass percentage are as follows: 1%-2% retarder, 3%-5% reinforcing agent, 1%-3% regulator, 4%-5% ion stabilizer, 1%-2% water purifier, and the balance being water. Preparation method: 1) Add the ion stabilizer and reinforcing agent to water according to the proportions and mix evenly in a 45°C water bath; 2) Add the regulator to the mixture and mix evenly; 3) Add the retarder and maintain the water bath for 2-3 hours; 4) Add the water purifier to obtain the target product. This metal ion crosslinking stabilizer can be used as an auxiliary additive component in the formulation of polyacrylamide ion crosslinking profile control agent systems. It can prolong the gelation time of the profile control agent, ensure the gel viscosity of the profile control agent, improve the stability of the profile control agent, and achieve effective sealing of the system.

The utility model discloses an internal expansion type sealing plug which comprises an installation disc, a first extrusion disc and a second extrusion disc, the left side and the right side of the installation disc are respectively provided with a convex structure protruding outwards, the peripheral face of each convex structure is fixedly connected with a rubber ring in a sleeved mode, and the interior of each rubber ring is hollow. The first extrusion disc and the second extrusion disc are arranged on the left side and the right side of the mounting disc correspondingly, grooves matched with the convex structures are formed in the sides, facing the mounting disc, of the first extrusion disc and the second extrusion disc correspondingly, and the convex structures on the two sides of the mounting disc slidably extend into the grooves of the first extrusion disc and the second extrusion disc correspondingly. A plurality of annularly-distributed sliding holes are formed in the two sides, facing the groove, of the installation disc. The rubber ring, the extrusion disc and other mechanisms are ingeniously combined, the pipeline plugging effect is achieved, the structural design is simple and clear, use is convenient and fast, production and maintenance cost is remarkably reduced, and good market popularization and application value is achieved.

The utility model relates to the field of air conditioner discloses a kind of special air conditioner of polycrystal silicon furnace rammer car, including return air cover, the return air cover is fixed in the outer wall right side of air conditioner body, the outer wall right side of return air cover is detachably provided with mounting frame, the inside fixed filtering screen of mounting frame, the top surface, bottom surface of return air cover is respectively fixed with fixed plate, the outer end of two fixed column is respectively fixed with baffle, the top surface, bottom surface of return air cover is respectively fixed with spring.In the utility model, through the cooperation of mounting frame, filtering screen, fixed groove, fixed plate, fixed hole, fixed column, baffle and spring, other sundries such as dirt, soot, dust can be effectively blocked to enter the inside of air conditioner body, ensure the clean of air conditioner body internal environment, while being beneficial to the staff with mounting frame, filtering screen quick dismounting, it is convenient to wash or replace filtering screen, without additional auxiliary tool, dismounting mode is simple and convenient, improve the convenience of operation.

This utility model discloses a frequency converter enclosure assembly with an anti-electromagnetic interference shielding layer, belonging to the technical field of frequency converter enclosure assemblies. It includes an enclosure and a hinged door on the front of the enclosure. The door is equipped with a sealing component. Openings are provided at the lower ends of both sides of the enclosure, and dustproof components are installed inside the openings. Cooling fans are installed on both sides of the enclosure above the openings. A metal shielding frame is installed inside the enclosure. This utility model can achieve efficient heat dissipation while ensuring the airtightness and anti-electromagnetic interference performance of the frequency converter enclosure. The concave design increases the flow path and improves heat exchange efficiency. Simultaneously, airflow through the top of the metal shielding frame and the gaps in the heat-conducting plate carries away heat. This dual-path rapid heat dissipation prevents heat accumulation and eliminates the need for numerous ventilation holes. It maintains the enclosure's airtightness to prevent impurities from entering while ensuring anti-electromagnetic interference effectiveness, thus ensuring stable operation of the frequency converter.

The utility model discloses a power line carrier communication technology internet of things ad hoc network device, which relates to the technical field of internet of things, and comprises a communication terminal, a power line carrier communication module is arranged in the communication terminal; the mounting mechanism is used for mounting the communication terminal; the shielding protection mechanism is used for protecting the communication terminal in an outdoor environment; the turnover type dustproof mechanism comprises a supporting push plate, a rotating shaft, an end plate, a torsional spring, a blocking plate and a dustproof net; the supporting push plate is located on one side of the communication terminal and fixedly connected with the base, and the rotating shaft penetrates through the protective cover and is rotationally connected with the protective cover through a bearing. According to the utility model, the communication terminal can be effectively protected in windy and sandy weather while the influence of rainwater weather on the communication terminal is avoided, in addition, the convenient assembly and disassembly of the shielding protection mechanism are not influenced, and the actual use effect is more ideal.

This invention discloses a wellbore trajectory identification method and device based on marker layer vertical depth, belonging to the field of oil and gas drilling technology. The method integrates actual drilling data and seismic data, formation data, and logging data from the surrounding work area to predict and invert marker layers that may be encountered during drilling, and reconstructs a planar structural map of the marker layer's burial depth. By capturing the marker layers encountered in the actual wellbore trajectory and calculating and comparing them with the vertical depth of the marker layers encountered in the preset wellbore trajectory, the downhole drill bit position is calculated and inferred, thereby achieving the identification and correction of the actual wellbore trajectory. This invention also discloses a wellbore trajectory identification device based on marker layer vertical depth. The technical solution of this invention can be used for wellbore trajectory identification during re-entry operations of old wells in new drilling operations, greatly reducing the drilling difficulty of re-entry and exploration of old wells, providing a reference for drilling process adjustments, and ultimately achieving effective plugging of old wells.

The utility model relates to glazing equipment for ceramic pot production, which belongs to the technical field of ceramic pot production, and comprises a workbench, a plugging plate and a spraying head, the top of the workbench is provided with a dismounting structure for dismounting the plugging plate, and the top of the workbench is provided with an adjusting structure for adjusting the spraying head; and the dismounting and mounting structure comprises a box body fixedly connected to the top of the workbench, the inner top wall of the box body is fixedly connected with a first electric lifting rod, the bottom end of a telescopic shaft of the first electric lifting rod is fixedly connected with a positioning connecting plate, and the inner top wall of the box body is fixedly connected with two tension springs. According to the glazing equipment for ceramic pot production, an adjusting rod can be movably adjusted under the action of a tension spring, the adjusting rod is slidably connected to the interior of a connecting base, a blocking plate is fixed under the action of a limiting ring and a threaded ring, and the adjusting rod is fixedly connected with the blocking plate under the action of a first electric lifting rod and a positioning connecting plate.

The utility model discloses a kind of steamer pot body grinding uses feeding structure, it is related to steamer polishing equipment technical field.The utility model includes base;The right end of base is fixedly installed with conveyor belt, and the left end of conveyor belt is erected with conveying assembly one, and conveying assembly one includes sliding frame, and the inside of sliding frame is slidably connected with slide, and the bottom side wall of slide is fixedly installed with electric push rod, and the other end of electric push rod is fixedly provided with hanging plate, and hanging plate is connected with bottom plate by sliding insertion column, and the left end of conveying assembly one is provided with conveying assembly two, and conveying assembly two includes load-bearing box fixed on base, and load-bearing box is connected with side plate by elastic pipe, and the top of load-bearing box is embeddedly installed with bearing piece, and the side of bearing piece is provided with heat dissipation piece.The utility model can realize automatically by using conveyor belt, conveying assembly one and conveying assembly two to deliver steamer pot body to polishing equipment, and the pot body can be rapidly cooled by heat dissipation piece.

The utility model relates to the technical field of storehouse control cabinet protection, and discloses an intelligent storehouse control cabinet which comprises a cabinet body, a dustproof cover, a protective door, a top air outlet dustproof net, a heat dissipation device composed of a fan, a heat dissipation piece and high heat conduction silica gel, and an air inlet filtering device composed of a bottom air inlet dustproof net, an intermediate filtering net and a fine filtering net. The top of the cabinet body is provided with a dustproof cover, the bottom of the dustproof cover is cooperatively connected with the top of the cabinet body through adaptive screws, the side wall of the cabinet body is provided with two protective doors which are distributed in an axial symmetry manner, the cabinet body is internally provided with a heat dissipation device, and the top of the heat dissipation device is provided with a top air-out dustproof net. According to the control cabinet for the intelligent storeroom, the internal structure is simple and reasonable, and efficient work of electronic devices in the control cabinet is effectively guaranteed through the matching effect of the heat dissipation device and the air inlet filtering device.

The utility model relates to electrical installation board technical field, concretely is a kind of building electrical installation board structure, including electric appliance placing plate and separating plate, the separating plate fixedly connected in electric appliance placing plate rear surface, the electric appliance placing plate rear side is provided with expansion device, the expansion device includes first connecting plate and connecting block, the connecting block is fixedly connected with the both sides of electric appliance placing plate, the first connecting plate is set in the rear of electric appliance placing plate, the surface of first connecting plate is fixedly connected with pull handle, the surface of first connecting plate is provided with adjusting groove. The utility model, by setting expansion device, effectively install more electrical devices, play the role of installing multiple electrical devices, when using, general equipment is fixed with wall at will, when electrical device is placed on the surface of electric appliance placing plate, due to more electrical devices, it is difficult to install all with the surface of electric appliance placing plate, improve the practicability of equipment.

This invention discloses a self-heating thermoelectric cabinet, comprising a mounting mechanism including a cabinet body, a base fixedly connected to the bottom of the cabinet body, and a cabinet door adapted to be installed on the outside of the cabinet body. An inner panel is fixedly connected inside the cabinet body, and a ventilation groove is formed on the outer side of the inner panel. A triggering component is also provided on the outer side of the inner panel. When the internal temperature of the equipment becomes too high, the fan blades will rotate and revolve, thereby quickly dissipating heat from the equipment. Simultaneously, the heat dissipation effectively cleans the filter plate. When the temperature drops, the baffle slides down, effectively blocking some fine particles passing through the filter plate, thus effectively improving the service life of the internal electrical components. Furthermore, the automatic heat dissipation effectively saves energy, greatly improving the practicality of the equipment.

The utility model relates to pipe orifice plugging technical field especially relates to a pipe orifice temporary plugging device. Bottom plate, compression board, main rod, push cylinder and locking assembly are included, and the main rod is fixed on the bottom plate, and the compression board is sealed and moves the sleeve and has on the main rod, and the soft tube is fixedly sleeved between the bottom plate and the compression board, and a plurality of reed are arranged between the bottom plate and the compression board in the soft tube, and the main rod is sleeved with the spring on the bottom plate and the compression board, and the locking assembly is sleeved on the main rod on the side of the compression board, and the push cylinder is sleeved on the main rod on the side of the locking assembly, and the push cylinder is screwed with the main rod, and the handle is fixed on the main rod end head on the side of the push cylinder. The pipe orifice temporary plugging device can realize effective plugging to the pipe orifice, and is simple to disassemble and assemble, and the disassembly and assembly time is short, and the artificial labor quantity is effectively reduced.

The utility model discloses a feeding device of a bottle blowing machine, which comprises a base, an inclined bottle blank slide way is fixedly mounted on the base, an outlet of the bottle blank slide way is connected with a blank separating mechanism, the blank separating mechanism comprises a blank separating block horizontally mounted on the base in a sliding manner, and a plurality of bottle blank clamping grooves are formed in the blank separating block. A bottle blank clamping groove of the blank separating block faces one side and is connected with an outlet of the bottle blank sliding way, the blank separating block is driven by a horizontal reciprocating driving device, an auxiliary limiting device and an auxiliary backup plate horizontally sliding on the limiting device are installed on the side, located on the blank separating block, of the base, and the auxiliary backup plate is driven by an auxiliary linear power device. The auxiliary backup plate leans against the bottle blanks in the bottle blank clamping grooves when approaching the blank separation blocks; a bottle blank clamping and overturning mechanism is installed on the base and located on the other side of the blank separating block, and a feeding blocking device used for blocking the bottle blanks, close to the outlet, of the bottle blank sliding way is further installed on the base. The feeding device is simpler in structure and can more accurately achieve feeding of the bottle blanks.

This invention discloses a road detection radar vehicle with obstacle clearing function, belonging to the field of road detection technology. It includes a radar vehicle body, on which a detection radar assembly is connected. The detection radar assembly includes a motor. A fixing plate is fixedly connected to one side of the top of the radar vehicle body, and the motor is connected to the top of the fixing plate. A support frame is connected to the top of the fixing plate, and a drive shaft is rotatably connected to the support frame. The output end of the motor is fixedly connected to the bottom of the drive shaft. In this invention, changing the angle of the clearing head effectively clears different obstacles at different points, improving the obstacle clearing effect. The cover housing in the radar assembly effectively protects the radar detector, preventing damage and extending its service life. The reinforcement assembly effectively reinforces the radar vehicle body during fixed-point detection, improving stability during this process.

The utility model discloses a kind of pig feed efficient energy-saving mixers, belong to pig feed processing technical field, including shell, the side edge lower end of shell is provided with discharge shell, the inside of discharge shell is provided with spiral conveying auger, the inside of shell is provided with comminution stirring mechanism, the upper end of shell is provided with feeding port plugging mechanism;The comminution stirring mechanism includes stirring assembly, the side edge upper end of shell is provided with stirring assembly, the utility model is smashed by being provided with comminution stirring mechanism, can realize the efficient comminution and uniform stirring of feed, comminution stirring mechanism includes driving shaft, driven shaft, comminution roller one, comminution roller two and multilayer stirring assembly, by the meshing transmission of driving gear and driven gear, the synchronous of comminution and stirring is realized, this design not only improves stirring efficiency, but also can ensure that feed mixes evenly, reduce energy consumption, simultaneously side cutting knife further ensures the comminution effect of feed, improves stirring quality.

The invention relates to the field of charging guns, in particular to a high-power charging gun with an air cooling heat dissipation structure, which comprises a gun shell and a gun head, and is characterized in that the gun head is mounted on one side of the gun shell, and a cable is arranged on one side of the gun shell and is connected with a charging pile. The charging gun effectively solves the problems that an existing charging gun is high in pin temperature rise, low in charging efficiency and high in high-power cost, high-efficiency pin heat conduction is achieved through the pouring sealant, the ceramic sleeve and the cooling fin sleeve, natural air cooling circulation is formed through gun shell cooling air holes, the pin working temperature is remarkably reduced, a conventional cable of the same specification can bear larger current, and the service life of the charging gun is prolonged. The cost is reduced; pure physical air cooling is free of liquid cooling aging risks, and maintenance is convenient. Meanwhile, through double sealing and a multi-stage filtering structure, water and dust are prevented, a heat dissipation channel is prevented from being blocked, the ceramic sleeve fundamentally avoids the risks of electric leakage and poor insulation, the equipment reliability is greatly improved, the device is adaptive to the outdoor complex environment, the national standard requirement is met, and the application range is wide.

The application discloses a temperature controller assembling and welding robot, and belongs to the technical field of welding.The temperature controller assembling and welding robot comprises a mechanical arm, a welding head is installed on the mechanical arm, an electric telescopic rod is installed between the welding head and the mechanical arm, a heat preservation cylinder is externally sleeved with the welding head, the heat preservation cylinder is fixedly connected with the mechanical arm, the heat preservation cylinder is used for heat preservation of the welding head, a piston cavity is formed in the lower end of the heat preservation cylinder, a blocking assembly is installed in the piston cavity, the blocking assembly comprises two fixed plates which are slidably installed in the piston cavity, the blocking assembly further comprises a plurality of positioning plates which are slidably installed in the piston cavity, and the sizes of the plurality of positioning plates are different.The blocking assembly can effectively block the molten welding wire, avoids the molten welding wire from flowing to other positions and causing the circuit board to be damaged, effectively guarantees that the welding material is in full contact with the welding point, improves the welding quality, and reduces the risk during welding.

This application discloses a retractable smoke curtain, belonging to the technical field of smoke curtains. It includes a fixed frame with a telescopic mechanism inside. The telescopic mechanism includes a first telescopic section fixedly installed inside the fixed frame. A second telescopic section is slidably connected inside the first telescopic section. Both the first and second telescopic sections have two sets of slide rails inside, with sliders slidably connected to the slide rails. A first spring is installed at the top of each slider and is mounted on the top of the telescopic mechanism. The second telescopic section is slidably connected to the first telescopic section via the two sets of sliders located inside the first telescopic section. A screw is threadedly connected to the bottom of the first telescopic section below one set of sliders, and a stop block is rotatably connected to the top of the screw. An elastic limiting mechanism is provided on one side of the bottom of each set of first telescopic sections below one set of sliders. This application improves the flexibility and adaptability of smoke-blocking materials through the telescopic mechanism.

This invention relates to a prefabrication device for water-cooled ceramic wear-resistant slag trenches, belonging to the field of trench technology. It solves the technical problems of existing water-cooled circulation pipe installation lacking positioning and the easy damage to the trench caused by demolding with lifting rings. The device includes a base, side plate templates, a cover plate template, and a bottom plate template. The top of the base has two ball grooves, each containing a ball head rotatably connected to it. Each ball head is fixedly connected to an adjusting rod, and the other end of each adjusting rod is fixedly connected to a sealing plug. A water-cooled circulation pipe is inserted and fixed into the sealing plug. The base and bottom plate template cooperate to form a working cavity. This invention improves the uniformity of the subsequent trench cooling effect by providing auxiliary positioning for the water-cooled circulation pipe before pouring. Simultaneously, the sealing plugs effectively seal the inlet and outlet of the water-cooled circulation pipe, preventing concrete material from entering the water-cooled circulation pipe during pouring.

This utility model relates to the field of pharmaceutical technology, specifically to a bottle feeding device for a drum-type bottle washing machine. It includes a base with a fixed seat on its bottom wall. A motor is mounted on one side of the inner bottom wall of the base. The output end of the motor is locked with a lead screw via a coupling, and the other end of the lead screw is rotatably connected to the inner wall of the base via a bearing. A connecting block is threaded onto the outer wall of the lead screw, and a connecting rod is mounted on the top wall of the connecting block, extending beyond the base. When the conveyor line stops, the pusher plate can push the bottles between itself and the baffle to the right, eliminating gaps. This solves the problem of excessive bottle spacing caused by unstable conveying speed, defects in the bottle feeding system, and differences in the bottles themselves, ensuring that the bottles are tightly arranged and continuously conveyed to the drum-type bottle washing machine, significantly improving conveying stability.