276 results about "Square Rod" patented technology

The invention discloses a multi-core wire harness connector automatic centering guide mechanism and a centering guide method thereof.The multi-core wire harness connector automatic centering guide mechanism comprises a mounting plate, the upper surface of the mounting plate is fixedly connected with a transverse plate, the outer wall of the transverse plate is fixedly connected with a support, the surface of the support is rotatably connected with a rotary knob through a bearing, a sliding groove is slidably connected with two square rods, and the two square rods are fixedly connected with the mounting plate. Protruding parts at the lower ends of the two square rods are fixedly connected with the corresponding guide plates respectively. Through the arrangement of the mounting plate, the transverse plate, the bracket, the knob, the cam, the square rod, the guide plates and the spring, when a multi-core wire harness connector needs to be centered, an operator firstly places a wire harness between the two guide plates, then takes down a locking bolt, stops rotating the knob, and fixes the knob through the locking bolt, so that the centering of the multi-core wire harness connector is realized. According to the mode, the wire harness can be centered at the multi-core wire harness connector, so that an operator can plug and pull out the wire harness conveniently, and the mounting convenience of the multi-core wire harness connector is improved.

The present invention belongs to the field of anchor processing, and specifically relates to a double-end face cutting device for processing prestressed anchors, comprising a base plate, a guide groove is provided at the upper end of the base plate, a guide block is slidably connected in the guide groove, a support rod is slidably sleeved in the guide block, a support rod is welded in the base plate, a spring is provided on the outside of the support rod, a support plate is welded to the upper end of the guide block, a support shaft is rotatably connected in the support plate, a square groove is provided in the support shaft, a square rod is slidably connected in the square groove, and a cross bar is welded to one end of the square rod. The present invention provides a mounting groove on the side plate, and a centering shaft is provided in the mounting groove, and a conical block is slidably connected to the side plate. The anchor is positioned by the cooperation of the conical block and the centering shaft, ensuring that the center point position of the anchor remains unchanged after the end face is switched, avoiding errors and improving processing accuracy.

The invention discloses aquaculture tail water purification treatment equipment, and relates to the technical field of sewage treatment equipment. The device comprises a mixing tank, a rotating disc is movably connected to the top of the mixing tank, a rotating shaft is movably connected to the interior of the rotating disc, a square rod is slidably connected to the interior of the rotating shaft, and mixing blades are fixedly connected to the bottom of the square rod. Three-dimensional stirring is achieved through cooperation of a linkage structure of the rotating disc and the rotating shaft and the mixing blades, a driving gear in the adjusting assembly is meshed with a gear ring, so that the mixing blades can move up and down while rotating, and the stirring range is widened; the dynamic adjusting mechanism ensures that a medicament and sewage can fully contact and react in each area in the mixing tank, the problem that a traditional fixed stirrer is not uniform in mixing is solved, the stability of height adjustment is ensured through the structural design of a square rod and a sliding block, a better pretreatment effect is provided for a subsequent filtering procedure, and the working efficiency is improved. The tail water purification efficiency and the water treatment quality are integrally improved.

The utility model discloses a quick and uniform mortar stirring device for building construction, which relates to the field of building construction and comprises a tank body, a top cover is arranged at the top of the tank body, a stirring component is arranged at the bottom of the tank body, feeding pipes are connected to the left side and the right side of the top cover, two discharging pipes are connected to the bottom of the tank body, and electromagnetic valves are connected to the outer walls of the discharging pipes. A clamping groove is formed in the top of the tank body. Non-caked mortar raw materials are filtered through the filter sieve hopper, the caked mortar raw materials are located at the bottom of the filter sieve hopper, the electric telescopic rod is used for pulling the connecting plate, the connecting plate pulls the square rod, the square rod slides in the square cylinder, the square rod is used for pushing the grinding head, and the grinding head is driven by the motor to rotate. According to the mortar stirring device, the grinding head extends into the filter sieve hopper, the second motor is used for driving the grinding head to rotate, and the grinding head can be used for grinding and crushing caked mortar raw materials at the bottom of the filter sieve hopper, so that the mortar stirring efficiency and quality can be effectively improved.

The utility model relates to the technical field of metal processing, in particular to a precise automatic lathe for processing metal products, which comprises a box body, a shell is fixedly connected to the top of the box body, a collecting box is attached to the bottom of the box body, a turning tool is arranged on the inner side of the box body, and the top of the turning tool is fixedly connected with the bottom of a second curved block. Two plate bodies are arranged on one side of the box body, one end of the plate body on one side is rotationally connected with the inner wall of one end of the box body through a bearing, and the top of the second curved block is fixedly connected with a telescopic rod of an air cylinder. Through cooperation of the box body, the plate bodies and the fixing structure, when the device is used, an electric push rod can drive a square rod to move outwards, the square rod drives a round rod to move outwards, the round rod drives a clamping plate to move inwards, then a metal product is clamped and fixed, a first motor drives the plate body on one side to rotate, and overturning of the metal product is achieved; and the metal product can be conveniently and automatically turned over, and then the back face of the metal product can be conveniently machined.

The utility model provides an adjustable tire mold repair frame, which belongs to the technical field of tire molds and is provided with a support frame, a lifting frame is vertically connected in the support frame in a sliding manner, and transverse plates are fixedly mounted at four corners of the lifting frame; a first transmission assembly is fixedly installed on the inner bottom wall of the right side of the supporting frame, a second transmission assembly is fixedly installed on the inner top wall of the right side of the supporting frame, and a third transmission assembly is fixedly installed on the inner top wall of the left side of the supporting frame. A first square rod and a second square rod are fixedly mounted on the lifting frame, a supporting plate with an L-shaped cross section is arranged on the first square rod and the second square rod, the first square rod is hinged to the supporting plate through a hinge, and the second square rod is hinged to the supporting plate through a telescopic mechanism; the tire mold repair frame is used for solving the technical problem that the height and the angle of the tire mold repair frame are inconvenient to adjust according to needs.

This invention discloses a geological disaster rainfall monitoring and early warning device, belonging to the field of geological disaster monitoring technology. It includes a liquid level sensor, a water pump, a motor, and a base plate. The base plate is slidably fitted onto the lower end of a square rod, and multiple first anchor rods are inserted and installed on the base plate. A cylinder is fixed to the top of the square rod, and an upper rod body is fixed to the upper end of the cylinder. A rotating wheel and a bevel gear ring are rotatably mounted on the cylinder, and the bevel gear ring is fixedly installed to the bottom surface of the rotating wheel. Two lead screws are symmetrically rotatably mounted on the side of the square rod near the top. The top ends of the lead screws mesh with the bevel gear ring for transmission. This invention enables convenient rainfall monitoring and allows for adjustment of its installation height as needed. After installation, it can better cope with severe weather such as strong winds and heavy rains, ensuring that the device can safely and stably monitor rainfall. Furthermore, it allows for convenient cleaning of photovoltaic panels, ensuring their high power generation efficiency.

The application relates to the technical field of handles, and discloses a handle, which comprises a lock body, a square rod is slidingly inserted into the inside of the lock body, mounting rods are fixedly connected to the two sides of the square rod, a sleeve ring is slidingly sleeved on the outer circumferential surface of each mounting rod, a mounting plate is slidingly sleeved on the outer circumferential surface of each mounting rod, and a handle is fixedly connected to the top end of each mounting plate. The handle is characterized in that the mounting plate is directly fixed on the mounting rods at the two ends of the square rod by rotating the lead screw to drive the positioning rod to move and be inserted into the positioning hole, the handle is convenient to install, disassemble and maintain, manpower is saved, the handle is prevented from being fixed on the door plate by using screws, damage to the door plate is prevented, the appearance of the door plate and the reuse after subsequent disassembly are not affected, and the problems that the handle and the door plate are fixed by using screws, the disassembly and maintenance are relatively laborious, the screws cause damage to the structure of the door plate, the appearance of the door plate is affected, and the reuse after subsequent disassembly is affected are solved.

The utility model belongs to the technical field of greening engineering, and discloses a greening engineering tree trunk brushing device which comprises a top plate, a lifting plate and a feeding assembly, two square rods are arranged on the bottom face of the top plate at intervals, a bottom plate is arranged at the bottoms of the two square rods, and two strip-shaped holes are symmetrically formed in the lifting plate; the hole walls of the adjacent sides of the two strip-shaped holes are slidably connected with the adjacent side walls of the two square rods correspondingly, a driving assembly is arranged on the top plate, sliding blocks are slidably arranged in the strip-shaped holes, wedge-shaped blocks are arranged on one side walls of the square rods, connecting rods are arranged at the bottoms of the sliding blocks, arc-shaped pipes are arranged on the connecting rods, and a plurality of nozzles are arranged on the inner sides of the arc-shaped pipes at intervals. The driving assembly drives the lifting plate to descend, meanwhile, lime liquid is supplied into the arc-shaped pipe through the feeding assembly, in the descending process of the lifting plate, the lime liquid is continuously sprayed to the surface of the tree trunk from the spraying head, spraying operation is completed, a worker does not need to bend down or squat down, and waist muscle strain of the worker is avoided.

The utility model discloses a cotton suction flute pipe installation structure which comprises a rack, a cotton suction flute pipe is arranged on the side face of the rack, plugs are installed at the two ends of the cotton suction flute pipe respectively, connecting square rods are arranged on the sides, away from the cotton suction flute pipe, of the plugs, a clamping groove is formed in one side of the outer wall of the rack, and the clamping groove is connected with the cotton suction flute pipe. A fixing seat is fixedly connected to the inner wall of the clamping groove, inclined connecting plates are fixedly connected to the bottoms of the two sides of the fixing seat, and clamping arms are arranged on the two sides of the top of each inclined connecting plate. The utility model relates to the technical field of spinning frames, and solves the problems that in the prior art, the opening end of a cotton suction flute pipe mounting clamp faces downwards, when accumulated cotton is cleaned, an operator often needs to bend down and lower the head, dismounting and mounting operation is carried out in a narrow space, force application is inconvenient, labor intensity is increased, and work efficiency is high. And a holding hand part is easy to collide with the edge of the machine beam.

This invention discloses a drying device for calcium hypochlorite production, relating to the field of calcium hypochlorite production technology. The technical solution includes a drying shell with a drying mechanism inside and a material conveying and preheating mechanism at the top. The drying mechanism includes a square rod located inside the drying shell, with both ends connected to the inner walls of the drying shell via bearings. A second motor is fixedly mounted on one side of the drying shell, with its output end fixedly connected to the square rod. Two drying components are located outside the square rod, each including a rotating sleeve fitted around the square rod and slidably connected to it. Multiple rotating plates are fixedly connected to the outside of the rotating sleeve. A cylinder and side circular plates are fitted around the rotating sleeve, and the rotating sleeve is rotatably connected to the side circular plates and cylinder. An opening is provided on one side of the cylinder to facilitate the drying of calcium hypochlorite, resulting in high drying efficiency and uniform drying.

The invention provides a cutting method, system and equipment for reducing the single crystal extraction gradient and a storage medium. The cutting method comprises the following steps: obtaining extraction size data of a plurality of square rods; calculating a compensation value K according to the extraction size data; calculating a cutting positioning size D according to the compensation value K; and according to the cutting positioning size D, performing compensation cutting on the single crystal to be cut within the cutting compensation range. The method has the beneficial effects that cutting compensation is carried out at the cutter feeding section during single crystal extraction, so that the cutting difference between the cutter feeding section and the main cutting section is reduced, and the gradient of the extraction cutting surface is reduced. In the cutter feeding section of single crystal extraction cutting, the cutting line is used for cutting according to the size of the compensated extraction finished product, the main cutting section and the cutter discharging section of single crystal extraction are used for cutting according to the size of the extraction finished product, the extraction size is reduced, silicon materials needing to be ground are reduced in the follow-up grinding process, and therefore silicon loss is reduced, working hours are saved, and working efficiency is improved.

The utility model discloses an integrated fireproof air duct, which relates to the technical field of ventilation system components and comprises an inner-layer air duct and two L-shaped outer-layer shells which are symmetrically arranged, and the outer-layer shells are rotatably connected with a mounting piece at the top of the inner-layer air duct through a rotating shaft I to form an openable structure. A fireproof layer is arranged between the outer-layer shell and the inner-layer air pipe, the bottom stacking position of the outer-layer shell and the inner-layer air pipe is flattened through a flattening assembly, the flattening assembly comprises a sliding block, an elastic pressing plate and a spring, and it is ensured that the fireproof layer is tightly attached. Fixing assemblies are arranged at the left end and the right end of the outer-layer shell, and a screw head is rotated to drive a screw rod and a disc to press the fireproof layer. A switch assembly is arranged at the bottom of the outer-layer shell, and convenient opening and closing are achieved through buckling of a square rod and a protruding block. And the adapting groove at the upper end of the outer shell is convenient for splicing a plurality of air pipes. By means of the detachable structural design, the problems that a traditional fireproof layer is difficult to install and detach and prone to loosening are solved, and the detachable fireproof layer has the advantages of being efficient in installation, convenient to maintain and high in fireproof stability.

1. Name of the designed product: handle (square rod step method). 2. Use of the designed product: handle for installation on furniture. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The novel vertical five-degree-of-freedom parallel manipulator comprises a polishing platform, a support, a motor box, a first supporting chain, a second supporting chain, a third supporting chain, a fourth supporting chain and a fifth supporting chain x, y, z three The parallel mechanism can realize x, y Movement in one direction and rotation in two directions. The advantages of the present application are as follows: 1. The vertical structure makes the polishing platform have more space to cope with more complex situations; 2. The connecting rods used in the mechanism are all circular rods, instead of traditional square rods, which ensures the coherence of the overall motion of the mechanism; 3. The first supporting chain and the second supporting chain have the same structure, which reduces the manufacturing and assembly difficulty of the overall parallel mechanism.

The utility model relates to the technical field of fixing supports, in particular to a waterproof paint color matching device. The color mixing device comprises a color mixing kettle, a driving part and a stirring rod, a fixing device is arranged in the color mixing kettle and comprises a fixing plate, one end of the fixing plate is fixedly connected with the stirring rod, one side of the fixing plate is fixedly connected with an internal thread ring, a bolt is in threaded connection with the interior of the internal thread ring, and the driving part is fixedly connected with the driving part. The arc surface of the bolt is slidably connected with a pressing plate, one side of the pressing plate is fixedly connected with a limiting block, the arc surface of the limiting block is slidably connected with a square rod, one side of the square rod is fixedly connected with a scraping plate, one end of the square rod is slidably connected with a limiting block, and one end of the limiting block is fixedly connected with a supporting plate. The waterproof paint color mixing device solves the problem that in a traditional waterproof paint color mixing device, in the color mixing process of waterproof paint, part of the waterproof paint can adhere to the inner wall of a color mixing kettle, and consequently mixing of the waterproof paint is not sufficient.

The utility model discloses a fool-proof plug-in clamp with a quick disassembly and assembly structure, and relates to a fool-proof plug-in clamp which comprises a base. Sliding grooves are formed in the front portion and the rear portion of the base, sliding blocks are connected to the two sides in the sliding grooves in a sliding mode, U-shaped rods are fixedly installed on the surfaces of the sliding blocks, a strip-shaped frame is fixedly installed between the two adjacent U-shaped rods on the front portion and the rear portion, and a traction rod is fixedly installed at the bottom of the strip-shaped frame. The motor drives a rotating rod to rotate reversely, the rotating rod rotates reversely to drive a rotating disc to rotate, the rotating disc rotates to drive two sliding rods to move, at the moment, the sliding rods drive strip-shaped frames on the two sides to move towards the two sides at the same time, the strip-shaped frames move to drive a traction rod to move, and the traction rod moves to drive a square rod to move; and the limiting rod does not limit the square rod any more, and at the moment, the clamp head can be conveniently detached and replaced by pulling the clamp head downwards.

This utility model discloses a counter-flow cooling tower, including a cooling tower shell, a fan installed on the top of the cooling tower shell, and packing material inside the cooling tower shell. A disassembly and assembly mechanism is provided inside and at the front of the cooling tower shell. The disassembly and assembly mechanism includes a connecting plate fixedly connected to the front of the packing material, and a strip-shaped cylinder fixedly connected to the front of the connecting plate. Through the disassembly and assembly mechanism, utilizing the sliding cooperation between the connecting plate and the fixed square rod, and the guiding support of the slider for the packing material, the packing material can be directly pulled out or inserted along the fixed square rod, avoiding the cumbersome disassembly process of bolt tightening or custom clips in traditional structures. Simultaneously, the spring inside the strip-shaped cylinder, along with the buckle plate and the clip plate, forms an automatic locking structure. During replacement, only the buckle plate needs to be pressed and the clip plate slid, allowing disassembly and assembly to be completed without professional tools, significantly reducing downtime for maintenance.

1. Name of the product in this design: Photovoltaic finished square rod size inspection equipment. 2. Purpose of this design: For automatic detection of various external dimensions of finished square bars. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The utility model discloses a window handle with a handle and a protective plate capable of being replaced quickly, which relates to the technical field of door and window accessories and comprises a base, a hollow mandrel mounted on the base, a second fixing hole arranged on the mandrel, a protective plate sleeved outside the base, a handle inner sleeve mounted inside the handle and a handle outer sleeve mounted inside the handle inner sleeve. A first fixing hole is formed in the handle inner sleeve, a force unloading hole is formed in the handle, the end of the square rod penetrates through the base to enter the core shaft, the adjusting pressure spring is located in the core shaft and located between the square rod and the core shaft, the locking block comprises a horizontal part and a vertical part, and the vertical part sequentially penetrates through the second fixing hole and the first fixing hole. The end, away from the horizontal part, of the vertical part makes contact with the lower end face of the first fixing hole, when disassembly is needed, a fine needle is inserted into the force unloading hole to push the vertical part of the locking block to be disengaged from the handle inner sleeve, the handle can be disengaged from the base, the protection plate loses limiting, and therefore the handle and the protection plate can be rapidly replaced.

The utility model relates to the technical field of filtering water tanks, and discloses a cutting fluid filtering water tank for a machining center, which comprises a tank body, a liquid inlet pipe is arranged at the top of the tank body, a drain pipe is arranged on one side of the tank body, and a placing box is slidably connected to one side of the tank body and is positioned under the liquid inlet pipe. According to the cutting fluid filtering water tank for the machining center, by arranging a knob, a square rod, a first spring, an inserting rod, an inserting hole, a shaft body, a limiting block, a movable plate and an inserting plate, a user only needs to pull the knob to pull the inserting rod out of the inserting hole, then the knob is screwed to drive the square rod fixed to the knob to rotate, and the square rod is matched with a square groove in the shaft body; when the filter screen plate is placed in the storage box, the shaft body and the limiting block can rotate to be far away from the moving plate, at the moment, the moving plate is pushed by resilience force of the first spring, the inserting plate is pulled out of the inserting groove, fixing of the pulling plate can be relieved, a user can conveniently take the filter screen plate out of the storage box, complex operation steps or tools are not needed, and the maintenance efficiency is improved.

This utility model relates to the field of ceramic production technology and discloses a transportation device for ceramic production. It includes a mobile cart with side plates fixedly connected to both ends of its top. A first placement plate is fixedly connected between the tops of the two side plates. Two placement mechanisms are also provided between the bottoms of the first placement plate and the two side plates. Each placement mechanism includes two U-shaped frames fixedly connected to the adjacent sides of the two side plates. A rectangular hole is provided in the middle of each U-shaped frame. Two square rods are fixedly connected between the two ends of each rectangular hole. L-shaped sliders are slidably fitted onto the different ends of the two square rods at the same end. Each L-shaped slider has a square hole that matches the square rod. This utility model significantly reduces the difficulty of operation when users pick up and place ceramic products, making the process easier and more efficient. It allows for flexible movement in production workshops and other settings, adapts to different transportation paths, and improves the flexibility of the transportation process.

The utility model discloses a binocular gun dome camera housing, and belongs to the technical field of monitoring camera products. The binocular gun dome camera housing comprises a housing body, and two sides of the housing body are respectively provided with a first lens and a second lens. The adjusting seat is fixedly mounted on the shell body, a lifting mechanism is arranged on the top surface of the adjusting seat and comprises a cylinder, a square hole is formed in the cylinder, a square rod is slidably connected to the interior of the square hole, a screw hole is formed in the square rod, a lead screw is in threaded connection with the interior of the screw hole, and a screw rod is arranged in the screw hole. The top face of the square rod extends to the outside of the square hole and is connected with a clamping assembly, the adjusting base comprises an outer box, the two sides of the interior of the outer box are rotationally connected with a worm and a worm gear respectively, the worm and the worm gear are meshed with each other, and the interior of the worm gear is connected with one end of the lead screw in a sleeved mode.

This utility model relates to the field of adhesive processing technology and discloses a lifting mixing device for adhesive processing, including a frame. A material tank is rotatably mounted inside the frame. Two support wheels for reinforcing the material tank are rotatably connected to both sides of the frame. A housing is fixedly mounted on one side of the frame, and an angle adjustment mechanism for adjusting the material tank is provided inside the housing. A second housing is fixedly mounted at the top of the frame, and two sleeves are rotatably mounted inside the second housing. A gear allows the two sleeves to rotate in opposite directions, thereby enabling two mixing blades to stir the adhesive in different directions, avoiding unidirectional movement of the adhesive and improving the mixing effect. Since the square rod is slidably connected to the sleeves, the height of the square rod and the mixing blades can be adjusted through the height adjustment mechanism, increasing the mixing range.

This invention relates to an ultrasonic nebulizer and its clamping structure, comprising a nebulizer body and a connecting frame. A support base is fixedly installed in the middle of the connecting frame, and a groove for placing the nebulizer body is provided on the top of the support base. Adjustment mechanisms for positioning the support base are provided at both ends of the connecting frame. The connecting frame is placed around the patient's neck, and the square rod is pulled out from the placement groove and its angle is adjusted so that the square rod is vertical and the sponge block on the limiting plate faces the patient's head. Then, the first square block is inserted into the placement groove, and the square rod slides into the slotted hole. The patient's head provides support for the limiting plate, preventing the connecting frame from slipping off the patient's neck. At this time, the placement groove limits the first square block, and the slotted hole limits the square rod. The magnetic block positions the nebulizer body, thereby preventing the nebulizer mask from misaligning with the patient's face, avoiding a decrease in the concentration of the drug in the respiratory tract, and thus ensuring the therapeutic effect.

The invention belongs to a cutting device, particularly relates to the field of new energy battery aluminum shell production, and discloses a cutting tool for new energy battery aluminum shell automatic production, which comprises a base, the inner end face of a fifth sliding block is rotatably connected with a first grinding piece, and a fourth sliding block is rotatably connected with a second sleeve. A second square rod is slidably connected into the second sleeve, a second grinding piece is fixed to the inner end of the second square rod, and conveying belts are symmetrically fixed to the two sides of the upper end face of the base. According to the cutting tool for automatic production of the new energy battery aluminum shell, the upper edge and the lower edge of one tangent plane of an aluminum plate are ground through two first grinding pieces, meanwhile, the other tangent plane of the aluminum plate can be ground through a second grinding piece, and after the supporting plate is rotated by 180 degrees, the grinding operation is repeated; and the two tangent planes and the upper and lower edges of the two tangent planes of the aluminum plate can be polished, so that the polishing effect is more comprehensive.

This invention belongs to the technical field of tempering furnaces, specifically a pressurized tempering furnace with hot air circulation; it includes a furnace body; a support frame plate is provided inside the furnace body, and a heat-proof box is provided on the top of the support frame plate. A locking and positioning device is provided on the heat-proof box, and the workpiece is located on the top of the heat-proof box; positioning base plates are also installed on both sides of the heat-proof box, and the workpiece is placed on the positioning base plates; the locking and positioning device also includes two sets of bent square rods located on both sides of the workpiece, with two bent square rods in each set and symmetrically distributed; a locking base plate is installed at one end of the bent square rod, and a locking square tube is provided on the side of the locking base plate closest to the workpiece, and an edge-fitting adapter is provided on the locking square tube; the locking and positioning device avoids the need to change the matching clamps when performing tempering operations on different workpieces, reducing the workload of the workers, enabling the equipment to perform clamping operations on workpieces of different shapes, and improving the use effect of the equipment.

The utility model relates to the field of herringbone ladders, and discloses a herringbone ladder convenient to move for installation engineering, which comprises two groups of crawling ladders, the side surfaces of the outer walls of the two groups of crawling ladders are hinged through a connecting rod I and a connecting rod II, and the bottom ends of the outer walls of the crawling ladders are hinged with hinge blocks through limiting components. Extension ladders are hinged to the bottoms of the outer walls of the hinge blocks through limiting assemblies, bottom feet are hinged to the bottoms of the outer walls of the extension ladders, and rotating rods are rotationally connected to the bottom ends of the inner sides of the outer walls of the extension ladders. According to the movable herringbone ladder, by arranging the extension ladder, the bottom feet, the rotating rods, the universal wheels and the fixing assemblies, when the herringbone ladder needs to be moved, limiting is relieved by manually pulling the fixing blocks, then the fixing blocks 19 are rotated to drive the square rods to rotate, the universal wheels are driven by the square rods to make contact with the ground, then the limiting blocks are loosened, and the limiting blocks are rebounded into the corresponding first fixing grooves through the limiting springs; the moving wheels can be quickly switched, and the herringbone ladder can be manually moved to replace the construction position.

The utility model relates to the technical field of food cooling, and discloses a cooling device for food production and processing, which comprises a bottom plate, a vertical rod for supporting is detachably connected to the upper surface of the bottom plate, and a square rod is detachably connected to one side of the vertical rod on the upper surface of the bottom plate. The outer surface of the square rod is slidably connected with a flat plate used for placement, the outer surface of the vertical rod is sleeved with an ice groove used for storage, and the upper surface of the bottom plate is detachably connected with an air blowing plate. According to the cooling device for food production and processing, through cooperative arrangement of a flat plate, ice grooves and an air blowing plate, the device can be more convenient and practical, a worker can place food needing to be cooled on the flat plate, after the food needing to be cooled is placed, ice blocks are placed in the ice grooves, after the ice blocks are placed, the air blowing plate is opened, and then the food needing to be cooled is cooled. And the fan blades on the air blowing plate rotate at a high speed to drive air to be blown to the flat plate through the ice grooves, and food on the flat plate is rapidly cooled by cold air generated by the ice blocks.

The industrial robot with the air purification function comprises a movable case, an air outlet is formed in the top of the movable case, an air inlet is formed in one side of the movable case, a filter element is inserted into an opening in the other side of the movable case, and a sliding block at the bottom of the filter element is inserted into a sliding way at the lower end of the opening. According to the utility model, the mounting, dismounting and maintenance work of the filter element is fully considered, the quick mounting and dismounting of the filter element are realized through the ingenious design of the positioning assembly, and during mounting, the filter element is inserted from the opening in one side of the movable case, so that the inner end of the filter element is attached to the air inlet and is clamped in the bayonet in one side of the movable case, and then the filter element can be quickly mounted and dismounted. The gear is rotated through an external knob, so that the toothed plate is slidably inserted into the butt joint block on the two sliding rods, mounting and dismounting can be completed, only the square rods need to be pulled outwards, the toothed block is separated from the gear, the gear can be easily rotated, the toothed plate slides out of the butt joint block, and dismounting of the filter element is achieved.