607results about How to "Prevent dumping" patented technology

The utility model relates to the technical field of medical instruments, and discloses a multifunctional chest bottle trolley convenient to adjust, which comprises a chest bottle trolley main body, a universal pulley yoke and a locker main body, an adjusting mechanism is arranged on the chest bottle trolley main body, an auxiliary mechanism is arranged on the adjusting mechanism, the adjusting mechanism comprises a contraction groove, and the contraction groove is provided with a telescopic rod. The contraction groove is formed in the inner wall of the right side of the chest bottle trolley body, an adjusting frame is slidably connected to the inner wall of the bottom of the contraction groove, an adjusting hole is formed in the outer wall of the front side of the adjusting frame, a shifting piece is slidably connected to the inner wall of the front side of the chest bottle trolley body, and an inserting rod is fixedly connected to the outer wall of the rear side of the shifting piece; the outer wall of the rear side of the shifting piece is fixedly connected with a compression spring. According to the chest bottle trolley, the containing groove, the adjusting hole and other structures are arranged, the inner diameter space of the chest bottle trolley and the height of the supporting rod are adjusted according to requirements, so that chest bottles are more stable and easy to fix, and a patient feels more comfortable. The chest bottle conveying device is not limited to conveying of chest bottles, but also can be used for arranging and storing other landing articles.

The utility model relates to a water-soluble hexavalent chromium filtering and collecting device, which belongs to the field of laboratory collection, and comprises a Buchner funnel (1) and a tray (2), the Buchner funnel (1) comprises a funnel opening (3) and a funnel neck (4), the funnel neck (4) is arranged at the bottom of the funnel opening (3), the funnel neck (4) is connected with the tray (2), the Buchner funnel (1) is taken out, and a beaker (11) filled with filtrate is taken out at the same time. The Buchner funnel (1) is provided with a suction filtration bottle (5), the suction filtration bottle (5) is provided with an extraction opening (6), the extraction opening (6) is connected with an extraction pipe (7), the extraction pipe (7) is connected with the suction filtration bottle (5), and the suction filtration bottle (5) is connected with the suction filtration bottle (5). The exhaust pipe (7) is connected with a vacuum pump (8), so that the filtering effect is improved, and the filtering is faster.

This utility model relates to the field of construction engineering technology and discloses a lifting device for construction engineering, including a base. The top of the base has a clearance groove, and a lifting bucket is mounted on the top of the clearance groove. A support frame is fixedly connected to the bottom of the lifting bucket, and a cylinder is fixedly connected inside the support frame. A push rod is fixedly connected to the output end of the cylinder. This utility model has the following advantages and effects: When the lifting bucket rises, the first and second lifting plates increase stability. Anti-slip holes slide on the outer surface of the guide rod. The first lifting plate supports the top of the lifting bucket, and the second lifting plate supports the bottom of the lifting bucket, making lifting more stable. When it rises to a certain height, the cylinder is activated to drive the push rod upward, and the push rod pushes the placement frame out of the lifting bucket, facilitating the discharge of the placement frame and thus enabling the rapid removal of building materials from the lifting bucket, improving lifting efficiency.

The utility model discloses a kind of centrifugal fan mounting structure and centrifugal fan, it is related to centrifugal fan technical field, the utility model includes flange barrel, flange barrel one end is fixed with locating block, flange barrel outside is sleeved with soft connection barrel, and soft connection barrel outside is sleeved with compression ring, and compression ring one end is provided with locating hole;Compression ring top is fixed with lifting seat, and lifting seat one end is penetrated with flange bolt, flange bolt one end is fixed with puncture head, flange barrel top is provided with fixed groove, and fixed groove inside is connected with nut.The utility model is equipped with locating block and locating hole, the number of locating block and locating block is same with the number of lifting seat, flange bolt and nut, and five are annular array equidistant distribution, so in assembly process, locating block enters locating block, then lifting seat and nut will be aligned;Avoid angle deviation between lifting seat and nut in assembly process to cause the phenomenon that flange bolt cannot be loaded.

According to the semiconductor product processing equipment and the mist discharging system, the mist discharging fan is connected with the rack through the damping mechanism, vibration of the mist discharging fan can be effectively prevented from being transmitted to the rack, the machining precision can be improved, the damping mechanism can adopt different structures according to needs, and when a connector is adopted, the connector is connected with the mist discharging fan through the damping mechanism. The connector is connected to the top of the first supporting rod through the first damping connecting base and connected to the bottom of the second supporting rod of the rack through the second damping connecting base, the second supporting rod can effectively limit the connector, and the problem that the connector topples due to the fact that the mist discharging fan is arranged on the first side of the connector is solved; shear force borne by bolts for connecting the first and second damping connecting seats with the first and second supporting rods is reduced, and the structural stability and safety of the damping structure are effectively guaranteed. When the bracket is adopted, the structure is simple, and a two-stage damping structure is adopted, so that the vibration of the fog exhaust fan can be isolated from the rack to the greatest extent, and the influence on the main shaft is avoided.

The utility model discloses a water and soil conservation planting device, which relates to the technical field of water and soil conservation and comprises two arc-shaped pipes, end plates are fixed at two ends of each arc-shaped pipe, first bolts are arranged on two adjacent end plates when the two arc-shaped pipes are circularly placed, the first bolts are used for fixing the two end plates, and the bottoms of the arc-shaped pipes are fixedly communicated with first irrigation pipes. A first embedded rod is fixed to the bottom end of the first irrigation pipe, and a plurality of first irrigation holes are formed in the first irrigation pipe. Water is supplied into the arc-shaped pipe, so that the water flows out along the first irrigation holes in the first irrigation pipe and the second irrigation holes in the second irrigation pipe, the water guided out of the first irrigation holes can soak soil of different depths, and downward growth of tree roots is facilitated; the conveying pipe can enlarge the reinforcing range of the device for the soil layer near the tree by means of the second irrigation holes, and water guided out along the second irrigation holes can soak the soil around the root of the tree, so that the root of the tree can grow all around.

The utility model provides a kind of automatic detection device belongs to the technical field of automatic detection, comprising;Control electric cabinet, the front side and rear side of control electric cabinet top are all fixed with horizontal look board, the front end of control electric cabinet top right side is fixed with operation control panel.The utility model is set through the setting of rotating mechanism, cooperate first motor, speed reducer, rotating component and rotary disc use, play the role of convenient driving workpiece rotation adjustment detection position, pass through the setting of clamping mechanism, cooperate mounting seat, telescopic cylinder, fixed connecting plate, guide sleeve, guide rod, shell, first clamping component and second clamping component use, workpiece can be effectively clamped, also convenient workpiece is rotated in the process of clamping, and workpiece can be adjusted clamping according to size, improve clamping effect, prevent workpiece prone to dump or sliding displacement, effectively improve detection accuracy.

The application provides a power lighting distribution control box, which comprises a box body, a box door and a set of storage cabinets installed in the box body, and electrical elements are installed in the storage cabinets; first sliding grooves are symmetrically formed in the top and bottom of the box body, the storage cabinets are respectively clamped to the first sliding grooves in the top and bottom of the box body through symmetrically arranged sliding blocks in the top and bottom, and the box door is connected to the box body along a direction perpendicular to the sliding direction of the sliding blocks. The first sliding grooves are symmetrically formed in the top and bottom of the box body, and the storage cabinets are clamped to the first sliding grooves through symmetrically arranged sliding blocks, so that the slidable installation of the storage cabinets in the box body is realized; maintenance personnel can more easily slide the storage cabinets out of the box body to maintain and check the electrical elements, the efficiency and safety of the maintenance of the distribution control box are effectively improved, and the operation difficulty caused by the narrow space in the traditional design is avoided.

The application provides a modern biology laboratory management device, and belongs to the technical field of laboratory management; the device comprises a cabinet body, a partition plate is fixedly connected between the upper and lower inner walls of the cabinet body, a plurality of storage grooves are formed between the partition plate and the cabinet body, a rectangular frame is arranged in the upper storage groove through a front-back moving assembly, a stop lever is fixedly connected between the left and right inner walls of the lower storage groove, a storage box is arranged in the rectangular frame, a lifting assembly is arranged above the rectangular frame, and the lifting assembly is used for lifting and lowering the storage box. Through the arrangement of the lifting assembly and the front-back moving assembly, when it is necessary to take medicine in the upper storage box, the storage box and the rectangular frame are extended out of the storage groove through the front-back moving assembly, and then the lifting assembly lowers the storage box, so that the medicine in the deep part of the cabinet body is conveniently taken out, the medicine on the outside is not easily touched, the situation of being knocked over is avoided, and the device is very convenient to use.

The utility model discloses a navigation channel floating tower mark which comprises a floating seat and an anti-falling plate, the top of the floating seat is fixedly provided with a fixing mechanism through a locking mechanism, and the top of the fixing mechanism is fixedly provided with an alarming mechanism used for alarming and prompting. Placard placing mechanisms for placing warning signs are fixedly mounted on the two sides of the warning mechanism, and a connecting mechanism connected with a fixing anchor is fixedly mounted at the bottom of the floating seat. According to the ship warning device, the warning mechanism and the fixing mechanism are installed above the anti-falling plate through the locking mechanism, and the warning mechanism can be fixedly installed through a set of threaded caps, so that the warning mechanism can be conveniently repaired and maintained when the warning mechanism breaks down; the connecting mechanism can be fixedly connected with an external fixing anchor, and the connecting distance between the connecting mechanism and the fixing anchor can be changed, so that the whole device can be prevented from being located under the water surface in rainy days and flood tide.

The fresh milk filtering device comprises a fresh milk barrel, a mounting frame is placed in the fresh milk barrel, a supporting net is fixedly connected to the bottom of the inner wall of the mounting frame, a filtering pad is placed on the upper surface of the supporting net and located in the mounting frame, and a viewing opening penetrating through the fresh milk barrel is formed in the side wall of the fresh milk barrel; the viewing opening is located below the mounting frame, and a transparent protection plate is arranged in the viewing opening. According to the scheme, when the fresh milk barrel is used, fresh milk squeezed into the fresh milk barrel can be filtered in time through the filtering pad, when foreign matter such as hair enters the fresh milk barrel, the foreign matter such as the hair can be filtered in time through the filtering pad, meanwhile, people can conveniently find the falling foreign matter such as the hair, the people can replace the filtering pad in time, and the working efficiency is improved. The fresh milk in the fresh milk barrel is prevented from being polluted by foreign matters such as hair, so that the quality and sanitary condition of the fresh milk can be improved, and the fresh milk barrel is more beneficial to actual use.

The utility model relates to the technical field of structural columns, in particular to a steel structural column with an anti-seismic function, which comprises a steel structural column body, and a reinforcing component is sleeved on the outer side of the steel structural column body. According to the device, the abutting rod is aligned with the trapezoidal block, so that the arc-shaped surface of the abutting rod gradually abuts against the inclined surface of the trapezoidal block, the sliding sleeve is forced to move upwards, and when the sliding sleeve moves upwards, the hinge block I is driven to rise; a first hinge block pushes a reinforcing rod and a second hinge block to jack up a clamping ring to slide on the surface of a steel structure column body, when the clamping ring gradually abuts against a limiting ring, the clamping ring is subjected to resistance to force the reinforcing rod to rotate, the first hinge block slides along a limiting groove, and then the reinforcing rod is gradually unfolded; and the reinforcing rods, the steel structure column body and the sliding sleeve form triangles, so that the stability of the steel structure column body is improved, the shock strength of the steel structure column body is relatively improved, and the steel structure column body is prevented from toppling over.

The utility model discloses a kind of reinspection and weighing packaging machines, it is related to cement packaging machine technical field, including body and bottom plate, the side of the body is connected with protective cover, the top of the body is installed with feed hopper, the side of the body is equipped with discharge nozzle, the side of the body close to discharge nozzle is installed with support.The reinspection and weighing packaging machine can support cement bag through supporting plate under cement filling, weight sensor senses the weight of cement bag simultaneously, and baffle resists cement bag, prevent cement bag from toppling and sliding to the outside of the range of supporting plate when weighing, after inspecting and weighing cement bag, start electric push rod retraction again, so that electric push rod pulls baffle to rotate on rotating seat, then baffle rotates and opens, facilitate cement bag to come down from supporting plate, immediately inspect and weigh after cement filling, improve the work efficiency and practicality of packaging machine.

This utility model discloses a marking and coating device for processing, including a support frame with a conveyor belt connected to its top outer wall. It also includes a cleaning mechanism: the cleaning mechanism includes a fixed frame installed on the top outer wall of the conveyor belt, a screw threaded through the top outer wall of the fixed frame, a connecting seat connected to the bottom outer wall of the screw, two symmetrically distributed fixing blocks connected to the two outer walls of the connecting seat, a limit block connected to the outer wall of the fixing block away from the connecting seat, connecting blocks connected to the inner walls of the two sides of the connecting seat, and a common wiping block connected to one outer wall of each connecting block. Two telescopic rods are connected inside each connecting block. This utility model discloses a marking and coating device for processing, which effectively cleans the surface of the object to be coated, preventing blurred markings and preventing the object from tipping over during transport.

This utility model provides a vegetable oil processing residue separator, belonging to the field of vegetable oil processing technology, to solve the problem of inconvenience in collecting and cleaning the residue during vegetable oil processing residue separation. It includes a processing tank with a matching tank cover on top. Above the tank cover is a feeding / discharging assembly. An oil residue separation assembly is located inside the processing tank. The oil residue separation assembly includes an inner lining plate, with a rotatable oil collecting cylinder mounted on the inner wall of the inner lining plate. Inside the oil collecting cylinder is a filter cylinder with a filter mesh on its inner wall. An external gear ring is mounted on the outer periphery of the oil collecting cylinder. One side of the external gear ring is meshed with a first gear, and one side of the first gear is meshed with a second gear. One side of the processing tank has a meshing opening that matches the first gear.

The utility model discloses a kind of water culture devices for yunnan rhizoma polygonati breeding, it is related to yunnan rhizoma polygonati cultivation technical field, including culture rack, the culture rack is slidably connected with multiple water storage channels, and the water storage channel upper end is provided with culture plate;Multiple planting holes are evenly provided in the culture plate, and the culture plate upper end is connected with multiple fixed components, and fixed component is located planting hole outer end.The utility model design structure is reasonable, it can simultaneously carry different batches, different genotypes yunnan rhizoma polygonati breeding material, while independent water supply head, gate plate can individually adjust the water supply of each water storage channel, water supply frequency, realize the accurate management of "one tank one strategy", satisfy the individualized demand of different breeding material, to improve the success rate of breeding, can avoid the problem of "excessive supply" or "insufficient supply" caused by unified water supply, accurately match the demand of each growth stage of yunnan rhizoma polygonati, save water resource, nutrient solution and other consumables, reduce breeding cost.

This invention discloses a stator assembly magnetic tile anti-tipping mechanism, belonging to the field of motor assembly technology. It includes a frame, and further comprises: an adhesive application mechanism, a magnetic tile assembly mechanism, a magnetic tile clamp installation mechanism, and a feeding mechanism. The leftmost side of the frame is equipped with an adhesive application mechanism for applying adhesive to the inner wall of the motor housing. The middle left side of the frame is equipped with a magnetic tile assembly mechanism for inserting the magnetic tiles into the motor housing. The middle right side of the frame is equipped with two magnetic tile clamp installation mechanisms for inserting magnetic tile clamps into the motor housing. The rightmost side of the frame is equipped with a feeding mechanism for inspecting and unloading the assembled product. The magnetic tile assembly mechanism includes: a magnetic tile pressing component, a feeding component, and a magnetic tile anti-tipping component. The magnetic tile pressing component is installed on the middle left side of the frame, and the feeding component is installed on the front side of the frame. Through this method, the invention can prevent the magnetic tiles from tipping over during the installation of the motor housing, while also enabling the recycling of the positioning core assembly.

The utility model provides an electronic information display device, which relates to the technical field of electronic information display and comprises a base, a display body is arranged at the upper end of the base, a moving mechanism is arranged in the base and comprises a guide sleeve, and a servo motor in the moving mechanism drives a bidirectional screw rod and controls a threaded block to move. When static display is needed, the suction cup frame makes contact with the ground, an air pipe exhausts air into a mounting sleeve to generate negative pressure, the suction cup frame is tightly adsorbed to the ground, and the stability of the device is effectively enhanced; and the piston block is prevented from moving to extrude gas into the mounting sleeve when toppling and moving due to external force, negative pressure in the suction cup frame is converted into positive pressure, the suction cup frame is prevented from being damaged due to forced jacking, and the service life of the suction cup frame is prolonged.

The utility model discloses a stacking and transferring device for corrugated paper production, relates to the field of corrugated paper production, and aims to solve the problems that in an existing transferring device in the prior art, a corrugated paper pressing and aligning mechanism is arranged on a moving assembly and cannot move, and corrugated paper is inconvenient to load and unload from the moving assembly in different directions. Side fixing plates are fixedly connected to the two sides of the front end and the rear end of the flat car, guide rods are fixedly connected between the two side fixing plates at the front end and the rear end of the flat car, a C-shaped movable frame is arranged at the upper end of the flat car, a pressing plate is connected to the upper end of the inner side of the C-shaped movable frame, and alignment push plates are connected to the front end and the rear end of the inner side of the C-shaped movable frame. By arranging the C-shaped movable frame capable of moving transversely and cooperating with a sliding structure of the guide sliding block and the guide rod, the pressing and aligning mechanism can be moved away after being fixed, so that corrugated paper piles can be conveniently fed and discharged from the flat car in multiple directions, and the loading and unloading efficiency is remarkably improved.

This invention discloses a wind-resistant reinforced intelligent utility pole, which relates to the field of power construction technology. A connecting base is positioned on the upper side of the utility pole and remains fixed thereto. The lighting fixture is fixedly connected to an external support rod, which in turn is fixedly connected to a mounting frame. The mounting frame is inserted from the top of the utility pole, allowing it to mate snugly with the connecting base. A threaded connection exists between the mounting frame and the connecting base, improving installation efficiency and supporting the lighting mechanism. A rotating device is positioned on an annular groove. When the utility pole encounters strong winds, the wind force acts on the rotating device, causing it to rotate and reducing the frontal wind force and wind load. Furthermore, when the utility pole is installed on the adjustment device, the pole aligns the external plate with the U-shaped plate. The external plate and the U-shaped plate are then plugged in and threaded together, enhancing the fixation effect between components.

The application discloses a kind of based on live equipment of thing networking chip, including support frame, support frame is provided with rotating table, rotating table is installed with fixed plate, the inner wall of fixed plate is provided with the light supplement mechanism for live light supplement, the inner wall of support frame is provided with double-shaft motor, the present application can increase the connection strength, can indirectly improve the angle rotation stability of thing networking chip camera, can improve the live effect of the device, simultaneously can complete subsequent preparation data statistics quickly by thing networking chip camera, support cross plate can slide on ground, simultaneously in the process of support cross plate movement, the support area of the device can be increased, the stability of the device can be improved, avoid in the process of thing networking chip camera rotation, because of the equipment overall vibration caused by rotating motion, then equipment dump occurs, the image live identification stability of the device can be improved.

The application relates to the technical field of pipeline detection, and discloses a pipeline detection device suitable for multifunctional tests, which comprises a bottom plate, an inner supporting circular table I arranged above the bottom plate, an inner supporting circular table II arranged directly above the inner supporting circular table I, a solid interior of the inner supporting circular table I, a hollow interior of the inner supporting circular table II, an open cylinder slidingly connected to the outer wall of the inner supporting circular table I, a hydraulic rod fixedly installed on the inner wall of the open cylinder, a rotating connection between the output end of the hydraulic rod and the bottom of the inner supporting circular table I, a water injection assembly capable of injecting water into the pipeline interior arranged outside the inner supporting circular table II, water injection of the water injection assembly into the pipeline interior through the inner supporting circular table II, full water in the pipeline to simulate the conveying medium state, a pressure medium provided for leakage detection, and a pipeline wall leakage point capable of being detected, the pipeline being in a full water state after water injection, a small amount of water penetrating outward and flowing downward along the pipeline outer wall to provide a detection signal for a humidity detection head if there is a small leakage point on the pipeline wall.

The utility model discloses an integrated dragging welding robot, which belongs to the technical field of welding, and comprises a take-up device, a containing device, a welding mechanical arm and an anti-falling mechanism, the take-up device is novel in design and ingenious in device, the take-up device comprises a movable shell and is placed in the shell through a welding main machine, a first hollow wiring pipe extends out of the top of the shell, all pipelines are wired from the interior of the first hollow wiring pipe and lead to a second hollow wiring pipe, and the second hollow wiring pipe is provided with a containing device used for containing a wire feeder. In the working process, the wire feeder is fixed to the second hollow wiring pipe, a welding worker holds the welding mechanical arm by hand to weld a to-be-welded part, one part of a pipeline is contained in the first hollow wiring pipe, the other part of the pipeline is conveyed to the high position through the second hollow wiring pipe to be suspended, and when the welding mechanical arm is moved, the pipeline is suspended in the air instead of being spread on the ground; dragging work of the welding robot is facilitated, the potential safety hazard that workers are stumbled is reduced, and the practicability of the device is greatly improved.

The application discloses a heat exchange pipe threading device and relates to the technical field of heat exchange pipe threading equipment. The heat exchange pipe threading device comprises a feeding mechanism, a baffle fixing mechanism and an end plate fixing mechanism. The feeding mechanism comprises a frame body, a driving assembly and a conveying assembly, and the conveying assembly comprises a clamping part and a plurality of supporting parts. The baffle fixing mechanism comprises a moving frame, a first supporting frame and a second supporting frame, and the second supporting frame is provided with a supporting part and a plurality of pressing parts. The end plate fixing mechanism comprises a fixing frame, a baffle and a plurality of supporting blocks, and the supporting blocks are connected with the fixing frame through first lead screws. The feeding mechanism can be used for flexibly adjusting the position and height of the heat exchange pipe, assisting workers in pipe threading operation, effectively improving pipe threading efficiency, and adapting to different types of components through the baffle fixing mechanism and the end plate fixing structure, so that the components can be clamped and workers can conveniently perform pipe threading operation.

The invention relates to a hydrostatic linear guide rail performance testing device, which belongs to the technical field of hydrostatic guide rail performance testing and structurally comprises a lathe bed and a hydraulic station, hydrostatic guide rails are arranged on two sides of the lathe bed, a stator of a linear motor is arranged on the lathe bed between the two groups of hydrostatic guide rails, and two groups of moving platforms are arranged on the hydrostatic guide rails. A rotor of a linear motor is arranged in the middle of the movable platform, the linear motor provides power for sliding of the movable platform, oil cavity sliding blocks are arranged on the two sides of the bottom of the movable platform, detection devices are arranged on the oil cavity sliding blocks, and a hydraulic station is connected with the oil cavity sliding blocks and supplies oil to the oil cavity sliding blocks. The oil spreading mechanism comprises multiple groups of oil blocking devices and a withdrawing device, the multiple groups of oil blocking devices are slidably arranged on the vehicle body on the outer sides of the two groups of moving platforms respectively, and the withdrawing device is arranged on the machine body and used for driving the oil blocking devices to be away from the hydrostatic guideway; the oil film laying device has the technical effect of ensuring uniform oil film laying.

The utility model discloses a waterproof, dustproof and antiskid kraft paper box, which relates to the technical field of paper boxes, and comprises an outer box body, an outer box cover is arranged above the outer box body, the outer box body is provided with a sealing assembly, the sealing assembly comprises an inner box body arranged on the inner wall of the outer box body, the upper surface of the inner box body is provided with a sealing groove, and the inner box body is provided with a sealing cover. A sealing inner cover matched with the cross section of the sealing groove is mounted on the lower surface of the outer box cover, mounting pieces are connected to the bottoms of the two sides of the outer box cover, magnetic attraction blocks are mounted on the mounting pieces, and magnetic attraction grooves matched with the magnetic attraction blocks are formed in the outer side wall of the outer box body; according to the utility model, a primary physical barrier is formed through the interference fit of the sealing inner cover and the sealing groove, so that the compressed tight fitting is ensured, water vapor and dust are blocked, a secondary locking force is provided by combining the adsorption of the opposite magnetic poles of the magnetic attraction block and the groove, the accidental opening during transportation is prevented, and the silica gel waterproof adhesive tape is additionally arranged on the sealing contact surface to form double sealing.

The utility model discloses a refrigerator and relates to the technical field of household appliances, the refrigerator comprises a refrigerator body, a rear end anti-toppling piece, at least one refrigerator door and a front end anti-toppling piece, the refrigerator body is provided with a containing cavity with an opening in the front end, and the containing cavity comprises at least one chamber; the rear-end anti-toppling piece comprises a rear-end supporting part at least partially protruding out of the bottom of the box body; the front-end anti-toppling piece comprises a front-end supporting part at least partially protruding out of the bottom of the box door. According to the technical scheme, in the production process, if the refrigerator topples over on a production line and the refrigerator body rotates, the front-end supporting part and the rear-end supporting part can rotate along with the refrigerator body, due to the fact that at least part of the front-end supporting part protrudes out of the bottom of the refrigerator door, and at least part of the rear-end supporting part protrudes out of the bottom of the refrigerator body, when the refrigerator body inclines forwards or backwards, the front-end supporting part and the rear-end supporting part can rotate along with the refrigerator body. And if the refrigerator falls down, the front-end supporting part or the rear-end supporting part can quickly make contact with the production line to support the refrigerator body, and the refrigerator is prevented from continuously falling down.

This utility model discloses a protective grounding device for construction sites, including a support base and a lead rod. The lead rod is internally installed in the support base and is movably connected to it. A nut is threaded onto the surface of the lead rod. Three sets of equally spaced linkage arms are arranged on the side wall of the nut. Each linkage arm has an upper movable shaft at its end near the nut, and the linkage arm is movably connected to the nut via the upper movable shaft. A connecting line is provided on the surface of the nut. Three sets of equally spaced support arms are arranged on the side wall of the support base. Each support arm has a pin at its end near the support base, and the support arm is movably connected to the support base via the pin. This utility model not only achieves convenient multi-position grounding connection to prevent grounding conductivity failure and facilitates warning and protection of the usage location, but also improves the grounding conductivity and safety of protection.

The utility model discloses a stackable antiskid food tray belongs to food tray technical field, it includes tray main part, and the lower end surface of tray main part is equipped with the stack buffer structure, and the stack buffer structure includes rubber pad, and the rubber pad sets up in the lower end surface center place of tray main part, and the upper end surface of rubber pad and the lower end surface of tray main part are all rectangular arrangement and are equipped with four recesss, and the lower four recesss lower inner wall center and the upper inner wall center of rear four recesss are all equipped with the clamping plate, and eight clamping plates are arranged two as a group respectively, and the hydraulic telescopic rod is all equipped between four clamping plates, and the outer lateral wall of four hydraulic telescopic rods is all equipped with the buffer spring, and the upper end surface of tray main part is rectangular arrangement and is equipped with four stack structures, in addition, the utility model can reduce the rigid collision, adapt the vibration and toss, absorb the external force energy, prevent the tray from toppling, dislocation, and enhance the stability of stacking under different environments.