90results about How to "Reduce swing" patented technology

The application discloses a self-balancing offshore operation platform safety ladder and a use method thereof, which comprises a sliding seat arranged in a horizontal sliding mode, a connecting frame hinged to one end of the sliding seat, a footboard horizontally and rotationally connected to the connecting frame, and a counterweight hung at the bottom of the footboard, wherein a hoisting frame is installed at the top of the sliding seat, the top end of the hoisting frame is connected with the movable end of the connecting frame through a lifting rope, and a horizontal shaking buffer assembly is arranged between the connecting frame and the footboard. The self-balancing mechanism and the buffer assembly significantly improve the stability of the safety ladder under complex sea conditions, the real-time response and anti-skid design ensure the safety of personnel getting on and off the platform, and the quick installation and modular design facilitate daily use and maintenance.

The present application relates to a kind of rotary compressor, gas compression system, refrigeration system and heat pump system, rotary compressor includes cylinder, piston, crankshaft, swing block and sliding vane, the compression chamber and swing groove are arranged inside cylinder, piston is arranged in the compression chamber, swing block is rotationally arranged in swing groove, sliding slot is arranged on swing block, sliding vane is slidably arranged in sliding slot, and one end of sliding vane and the side wall of piston abut, the other end between the inner side wall of the cylinder is provided with the driving assembly for driving the one end of the sliding vane and the side wall of the piston abut, crankshaft is linked with piston, and drives piston to eccentric rotation in the compression chamber, swing block is synchronously swung back and forth in swing groove. By the sliding vane and the rocker block of prior art are designed as a whole, the swing amplitude of sliding vane and swing block can be greatly reduced, the friction power consumption is effectively reduced, and the cold leakage between sliding vane and piston can be reduced, the lubrication state between swing block and cylinder is improved, and the friction loss between sliding vane and cylinder is reduced.

The utility model discloses an adjustable surveying and mapping instrument windproof support belongs to surveying and mapping instrument support field, and it includes adjustable support, support sleeve and reinforcing link: adjustable support contains main rod, the inner rod of the upper and lower slide of main rod, and the thread locking mechanism of locking inner rod height, and the inner rod upper portion fixed surveying and mapping instrument body, support sleeve upper end connects main rod, and the outer surface ring of lower extreme is clothed three collapsible legs, and the inside slide slide bar, and the telescopic link of slide bar inside slide is arranged, and the support block is fixed to telescopic link bottom end, reinforcing link is set up to corresponding leg, and two ends are rotatable connection collapsible leg and slide bar respectively, and the leg is set up to corresponding and has the accommodation groove. When the leg is folded, reinforcing link is received into the accommodation groove, when the leg is opened, reinforcing link and slide bar, leg constitute the triangle stable structure. The utility model can effectively promote the whole wind bearing capacity, keep stable observation, reduce the measurement error caused by vibration.

The utility model discloses an intelligent electromagnetic chuck crane which comprises two end beams, two main beams arranged between the end beams, a hoisting trolley arranged on the main beams, a winding drum mechanism arranged on the hoisting trolley, a lifting appliance arranged below the hoisting trolley, a movable pulley arranged at the top of the mounting rack, a movable pulley arranged at the bottom of the mounting rack, and a movable pulley arranged at the top of the movable pulley, the movable pulley is connected with the winding drum mechanism through a steel wire rope, a plurality of connecting frames are evenly arranged at the bottom of the mounting frame, electromagnetic chucks are arranged below the connecting frames, vertically-formed sliding holes are formed in the connecting frames, contact switches are arranged at the tops of the sliding holes, and each electromagnetic chuck comprises a mounting plate; a sliding plate is arranged at the top of the mounting plate, and the sliding plate is slidably connected into the sliding hole; the crane can ensure the precision when the electromagnetic chuck is matched with an object, and the stability and safety of hoisting work are improved.

The utility model relates to the technical field of hoist, concretely relates to a low-position rotary type hoist trolley, including operation trolley, the below of operation trolley is equipped with rotary trolley frame, is installed between rotary trolley frame and operation trolley and has rotary mechanism, the bottom of rotary trolley frame is installed with lower trolley general assembly, and lower trolley general assembly includes the load platform of fixed connection in the lower part of rotary trolley frame, is installed with hoisting mechanism on load platform, and hoisting mechanism is connected with container spreader through steel wire rope, one side fixed connection of load platform bottom is equipped with the connecting frame of L type, and the bottom surface fixed connection of connecting frame horizontal section has driver's room. The utility model sets up the driver's room at the bottom of rotary trolley frame, and realizes the synchronous rotation of driver's room and container spreader through rotary mechanism, and the driver's vision is consistent with container direction all the time when hoisting, to improve the intuitiveness and precision of alignment operation.

This application discloses a method and system for planning the hoisting trajectory of a UAV based on industrial vision, relating to the field of UAV technology. The planning method includes the following steps: S1: Real-time acquisition of image data of the hoisting scene using industrial vision equipment; S2: Identification of obstacles, target placement area, and the position and shape information of the hoisted object from the preprocessed image; S3: Establishment of a dynamic model of the UAV-hoisted object system based on the information acquired by industrial vision; S4: Construction of a multi-constraint trajectory optimization objective function based on the dynamic model of the UAV-hoisted object system; S5: Generation of an initial hoisting trajectory; S6: Output of the final UAV hoisting trajectory. This method and system for planning the hoisting trajectory of a UAV based on industrial vision uses industrial vision equipment to acquire environmental information in real time, enabling timely perception of changes in the position of obstacles and targets in the dynamic environment, thus improving the adaptability of trajectory planning to the dynamic environment.

The application discloses a windproof device and method for improving the safety of a unit curtain wall, which comprises a base, an adsorption assembly, a winch, a cable, a counterweight assembly, a buffer tire assembly and a handrail. The adsorption assembly adsorbs and fixes the base to the surface of the unit curtain wall, the winch tightens the cable, so that the unit curtain wall is in tension constraint with the hook, the temporary anchor point or the adsorption fulcrum, thereby inhibiting the rotation and swing in the hoisting process; the counterweight assembly lowers the gravity center, the buffer tire assembly absorbs the in-place impact, and the handrail facilitates manual fine adjustment and positioning. The application can reduce the traditional cable wind rope layout, and improve the hoisting safety and efficiency of the unit curtain wall.

The utility model relates to a kind of multi-airbag coordinated trim's offshore semi-submersible vessel, belong to offshore semi-submersible vessel technical field, including semi-submersible vessel ontology, the front and rear sides of the left side of the upper surface of semi-submersible vessel ontology are all fixed with several first airbags by large cylinder bracket, one side of semi-submersible vessel ontology is equipped with anti-drop mechanism, and the anti-drop mechanism includes the fixed frame of being fixed in one side of semi-submersible vessel ontology and the number of two. The multi-airbag coordinated trim's offshore semi-submersible vessel, the stability when the ship dives can be increased by the buoyancy of several first airbags of front and rear sides, reduce swing and vibration, two second airbags are fixed in the two sides of semi-submersible vessel ontology, further enhance the lateral stability of ship, ensure that ship keeps balance in diving process, by the cooperation of fixed plate and protection frame, the outside protection performance of several first airbags of front and rear sides is promoted, reduce the impact of airbag in diving process by external object.

The utility model discloses a kind of glasses and hinge structure thereof, hinge structure includes: fixed pedestal, fixed on frame, fixed pedestal is equipped with through-hole;Screw and nut, pass and be equipped in through-hole, for providing mechanical connection;Damping member, by screw and nut is fixed on fixed pedestal, the outer wall of damping member is rounded rectangular column;Elastic sheet, main body is located in temple, one end is exposed and bent as rounded rectangular sleeve, the sleeve structure is set on the outer surface of damping member, realize the rotary connection of temple;Spring wave pearl, embedded in the recess of fixed pedestal, and the wave pearl top is tightly attached to the outer surface of the sleeve structure of elastic sheet;Wherein, when temple rotates, the rounded rectangular outer wall of damping member provides two contact points, spring wave pearl provides third contact point, three jointly compress sleeve structure, make its elastic deformation and energy storage rebound.The utility model can improve temple stability and reduce swing, enhance rebound mechanism, simplify structure and improve durability.

The utility model discloses a kind of blown film machines for film production, it is related to blown film machine technical field, including blown film mechanism, flattening mechanism, winding mechanism and cooling mechanism;Blown film mechanism includes material cylinder, and material cylinder is provided with hopper and die head;Flattening mechanism includes frame, and frame is provided with herringbone and the flattening roller group located in herringbone upper end;Winding mechanism includes machine table, and machine table is provided with winding roller group;Cooling mechanism includes air supply source and the cooling air ring being set in die head upper end, air supply source is connected with cooling air ring by pipeline, and the inner ring wall of cooling air ring is provided with multiple air outlets, and each air outlet central axis is inclined to be set relative to horizontal plane to oblique upper side;Air outlet central axis is inclined to be set relative to horizontal plane to oblique upper side, so that cooling airflow and bubble contact form angle, airflow continues to flow upwards after contacting bubble, improve the time and area of airflow and bubble contact, enhance the cooling effect to bubble.

The utility model relates to a wheel set structure for a luggage. The wheel set structure comprises at least one universal wheel assembly used for supporting a luggage body to move. Each universal wheel assembly comprises a rolling wheel and a universal joint with one end connected with the rolling wheel. An integrally formed bearing part is arranged at the other end of the universal joint, and the bearing part is connected with the box body; the bearing piece comprises an edge covering structure connected with the corner edges of the bottom of the box body and a step type installation piece used for being fixedly connected with the box body. By arranging the step type mounting piece, connection between the box body and the rolling wheels can be increased, connection between the box body and the rolling wheels is more stable and firmer, movement of the box body is reduced, meanwhile, the high edge design is arranged, the contact area between the box body and the high edge design can be increased, swinging of the box body is reduced, damage to the box body is reduced, and therefore deformation of the box body can be prevented; and through the design of the raised edges, the support of the bottom of the box body can be increased, so that the bearing effect of the box body can be improved.

The utility model relates to air conditioner installation technical field, and disclose a kind of air conditioner mounting plate's leveling device, the air conditioner mounting plate's leveling device, including support, two groups of scale board are fixedly connected in support bottom;Further include negative pressure adsorption mechanism, negative pressure adsorption mechanism includes the suction disc being set in the both sides of support top, suction disc bottom is fixedly connected with the hollow cylinder body that passes through support interior, piston head is movably installed in hollow cylinder body interior, and one end of piston head is fixedly connected with the support pole that extends out hollow cylinder body interior.Movable suction disc contact mounting plate, air is discharged through hollow cylinder body and one-way valve pipe, suction disc negative pressure adsorption, judge mounting plate level by scale board, when disassembling, pull support pole and drive piston head to leave hollow cylinder body, air enters to cancel adsorption, piston head resets seal after hand release, avoid to cause mounting plate deformation displacement to pull support.

The utility model discloses a kind of automatic baking tea leaf device of aroma, including adjusting mechanism, the adjusting mechanism includes base plate, the base plate top side swing joint has several baking furnace, the base plate top other side is symmetrically provided with foot stool, one of the foot stool side fixedly connected with controller, the foot stool top fixedly connected with top rack, the top rack inboard rotation is connected with several drive wheels, tea leaf temperature gradually cools, after cooling time reaches set period, controller reopens motor and drives mesh basket to reset to baking furnace above continue heating and baking, repeat operation until tea reaches preset aroma requirement, it can be in tea baking process, greatly reduce the input of personnel labor, while reducing the subjectivity of manual operation to cause the baking degree and aroma of different batches of tea to be inconsistent, difficult to meet the demand of customer to stable aroma.

The embodiment of the present application provides an engine multi-connecting rod mechanism, an engine and a vehicle, relates to the technical field of engines, and aims at improving the technical problem that the piston impacts the cylinder wall under the action of the connecting rod in the prior art, thereby causing poor NVH performance.The engine multi-connecting rod mechanism comprises a crankshaft, a piston and an intermediate connecting rod; the intermediate connecting rod comprises a first arm rod and a second arm rod; one end of the first connecting rod, which is away from the crankshaft, is movably connected with the first arm rod; one end of the second connecting rod, which is away from the piston, is movably connected with the connecting part; and one end of the second arm rod, which is away from the first arm rod, is movably connected with the cylinder wall.The intermediate connecting rod is arranged, and the first arm rod and the second arm rod are arranged at an included angle, so that the swing range of the second connecting rod is reduced, the piston is prevented from impacting the cylinder wall during movement in the cylinder wall, vibration and noise caused by the piston impacting the cylinder wall are weakened, and the NVH performance of the engine is improved.

The utility model relates to the technical field of unmanned aerial vehicle devices, in particular to an agricultural unmanned aerial vehicle hoisting device based on multi-mode stable suspension, which comprises a multi-mode suspension structure arranged at the bottom of an unmanned aerial vehicle main body, and is characterized in that the multi-mode suspension structure comprises an electromagnetic lock hook, and a main sling and an auxiliary sling which are arranged on the unmanned aerial vehicle main body; the electromagnetic lock hook is controlled by a circular power source, the main sling is driven by a main sling motor, the auxiliary sling is driven by an auxiliary sling micro motor, and the movable ends of the main sling and the auxiliary sling are jointly connected with the electromagnetic lock hook. Through cooperative control of the main sling and the auxiliary sling, the material swing amplitude can be reduced, the materials are prevented from impacting an unmanned aerial vehicle body or surrounding obstacles, and the flight safety in a complex farmland environment is guaranteed.

The invention discloses a wind vibration resistant and fatigue resistant overhead insulated conductor, and relates to the technical field of insulated conductors, a plurality of anti-puncture metal sheets are laid on the inner side of an outer circle setting insulating sleeve at equal intervals, semicircular pressing belts are bonded to the inner sides of the anti-puncture metal sheets, and a plurality of weight reduction fixed supporting cavities are formed in the inner sides of the semicircular pressing belts at equal intervals; a plurality of biconvex elastic pieces are installed on the inner side of the weight reduction fixed supporting cavity at equal intervals, an external fixed internal resistance cooling fin is bonded to one end of the inner side of the semicircular press-fit belt, a plug-in card embedding groove is formed in one end of the external fixed internal resistance cooling fin, and a plug-in card embedding strip is installed at one end of the external fixed internal resistance cooling fin. According to the invention, through internal multi-position and all-directional energy absorption and buffering, the swing amplitude of the overhead insulated wire is slowed down, and the situation that a fixed joint of the overhead insulated wire is greatly damaged by friction due to large-amplitude swing and traction is avoided, so that the service life of the overhead insulated wire is prolonged, and the service life of the overhead insulated wire is prolonged. And the stability of overhead insulated wire installation and overhead support is ensured.

The application relates to a stirrer fixing device and relates to the technical field of sewage treatment, which comprises a mounting frame, a stirring assembly, a lifting assembly and a guide assembly. The mounting frame is fixedly installed on the wall of a sewage pool requiring stirring, the stirring assembly is installed on the mounting frame, the stirring assembly is used for stirring in the sewage pool, the lifting assembly is installed on the mounting frame, the lifting assembly is used for moving the stirring assembly, the guide assembly is installed between the mounting frame and the stirring assembly, and the guide assembly is used for stably moving the stirring assembly. The application has the effect of conveniently maintaining and repairing the stirrer.

This utility model discloses a pressure test device for hydrogeological engineering surveys, including a main body and a support mechanism located on one side of the main body. This support mechanism reduces the sagging caused by the device connecting to the hose through bottom support, ensuring the stability of the connection end. The support mechanism includes a side frame fixedly connected to one side of the foot pad. Water is introduced through an external hose when the valve body is opened. Water is introduced into the pressure test air chamber at one end of the water inlet pipe through a water meter and the valve body. After being pressurized in the pressure test air chamber, water is discharged through a drain pipe. This effectively reduces the sagging caused by the device connecting to the external hose during the assembly and use of pressure tests in hydrogeological engineering surveys. This also ensures that during long-term use, the connection end is not affected by external force accidental contact or impact force generated during water supply, thus reducing the shaking amplitude caused by the impact force. This improves the confidentiality of the connection and reduces the occurrence of water leakage after loosening.

A tensile strength testing device for a safety lead relates to the field of firework lead detection and comprises a bottom plate, a vertical plate, a telescopic rod, a guide rod, a support plate and a fixing clamp, anti-slip blocks are distributed on the lower end face of the bottom plate, the vertical plate is arranged on the upper end face of the bottom plate, the lower end of the vertical plate is hinged to the upper end face of the bottom plate, and the guide rod is transversely arranged at the upper end of the vertical plate. A transversely-arranged supporting plate is arranged at the upper end of one side of the vertical plate, a longitudinally-arranged telescopic rod is arranged on the other side of the vertical plate, a fixing clamp is arranged above the telescopic rod, the upper end of a lead is installed on the fixing clamp, the lead is lapped on a guide rod and the supporting plate, and a weight is installed at the lower end of the lead; according to the utility model, the vertical plate, the fixing clamp and the weight are arranged in a matched manner, so that a traction experiment can be conveniently carried out on a lead mounted on the vertical plate, and experimental data can be conveniently recorded; by arranging the positioning ring, the swing amplitude of the lead is reduced, and the detection precision is improved; the vertical plate and the bottom plate are hinged, so that the vertical plate can be folded, the size of the testing device is reduced, and the occupied space is reduced.

This invention relates to the field of water conservancy engineering, and more particularly to a sidewall support device for water conservancy engineering construction. This invention facilitates installation and removal, and allows for closer contact between the pressure plate and resistance rod and the sidewall of the water conservancy channel, thereby providing more stable support for the inclined sidewall of the water conservancy channel. A sidewall support device for water conservancy engineering construction includes a housing and a slide rail, etc.; the slide rail is fixedly connected inside the housing. The worker places the device in the water conservancy channel requiring stability and activates the electric slider, causing the pressure plate and resistance rod to move upwards and away from the slide rail, compressing the buffer spring. This allows the pressure plate and resistance rod to make closer contact with the channel sidewall, thus providing stable support for the inclined sidewall of the water conservancy channel. After use, the worker adjusts the electric slider and removes the device. This not only provides stable support for the inclined sidewall of the water conservancy channel but also facilitates installation and removal, making it highly practical.

The combined type composite reamer comprises a reamer handle and a reamer head which are connected, the reamer head comprises a reamer head front section, a reaming section and a reamer head rear section which are integrally connected from front to back, and the diameter of the reamer head front section is smaller than that of the reaming section; a plurality of first reaming blades are welded to the outer wall of the tool bit front section in the circumferential direction at equal intervals. A plurality of second reaming blades are welded to the outer wall of the reaming section in the circumferential direction at equal intervals. According to the utility model, the detachable connection between the cutter handle and the cutter head is realized through the structural design, and the first reaming blade and the second reaming blade welded on the cutter head participate in cutting at the same time, so that the axial resistance is uniform in the drilling process, and the overall swing of the cutter is small and the rigidity is large; and the first reaming blade and the second reaming blade are welded, so that the fixity and the machining stability are better, and the stability in the machining process can be improved.

The utility model relates to a magnetic suspension insulation box of a wet-type electric dust remover, which comprises a cathode suspension block and a magnetic suspension bearing block which are positioned in an insulation box shell, and the cathode suspension block is positioned in a space above the magnetic suspension bearing block and is connected with a cathode suspension rod which is vertically arranged; the magnetic suspension bearing block is internally provided with an open hole for allowing the cathode suspender to pass through; the bottom of the cathode suspender penetrates through an opening of the magnetic suspension bearing block and is connected with a cathode wire in the wet-type electric dust remover; the contact surface of the cathode suspension block and the magnetic suspension bearing block is provided with a magnetic suspension assembly, and the magnetic suspension assembly generates mutually repulsive magnetic fields when electrified, so that the cathode suspension block is far away from the surface of the magnetic suspension bearing block by a certain distance due to magnetic force, and magnetic suspension is realized. The insulation performance of the cathode can be greatly improved, even if wet flue gas rises to cause condensation and attachment, discharge cannot be caused due to the fact that the cathode wire is in a suspended state, and traditional electric heating and dry air sealing do not need to be used.

This utility model relates to the field of connector electrical testing, specifically to a connector electrical testing device. It primarily addresses the problem of loose connections between terminals and proposes the following technical solution: It includes a base, with a drive motor fixedly connected to the bottom of the base. The base is fitted with a sliding test assembly, which includes a mounting plate. A micro probe is disposed through the mounting plate, and the end face of the micro probe movably abuts against a gold-plated steel pin holder. This utility model allows the micro probe to slide through the side of the mounting plate, replacing the elastic lever arm with direct sliding, thus avoiding loose connections during testing. Furthermore, by allowing the micro probe to abut against the gold-plated steel pin holder, it ensures that when the micro probe is pushed by an external force, it first contacts the gold-plated steel pin holder, and then the gold-plated steel pin holder continues to move under force. During this displacement, the micro probe does not directly contact the product pins, which helps reduce the oscillation of the micro probe.

This application relates to the field of vibration equipment technology and discloses a concrete vibrator for core molds in hollow core slab construction. The vibrator includes a vibrating rod and a sliding plate that can move along the upper surface of a reinforcing cage. A sleeve through which the vibrating rod passes is located at the center of the sliding plate. A cross-hinged rocker arm assembly is provided on the sleeve, and each of the four ends of the rocker arm assembly has clamping legs that can contact the reinforcing cage. This concrete vibrator for core molds in hollow core slab construction, through the coordinated design of a movable sliding plate, a mechanical centering clamping mechanism, and a vibrating rod guiding and stabilizing sleeve, transforms vibration operations from a high-risk manual operation relying on individual worker experience into a streamlined, mechanically assisted, accurate positioning and stable operation. This significantly reduces the probability of core mold breakage, improves the consistency of vibration quality, reduces worker labor intensity, and enhances construction safety.

The application discloses an anti-swing electric single-beam crane suitable for hoisting energy storage containers, and belongs to the technical field of hoisting energy storage containers. The anti-swing electric single-beam crane comprises an I-beam main beam, a running trolley sliding along the length direction of the I-beam main beam, and an electric hoist hoisted at the bottom of the running trolley. The steel wire rope cooperates with the chain belt of the electric hoist and the suspension hook at the bottom of the electric hoist to form a complete closed loop constraint. The vertical limiting action of the first fixed pulley ensures that the steel wire rope and the suspension hook are on the same vertical line. The winding mechanism maintains the steel wire rope in a tensioned state throughout the process. In this way, the top suspension and the bottom vertical tension of the hoisted battery module are bidirectionally constrained. In combination with the adaptive guidance of the guide mechanism, the installation plate can be synchronously followed during the movement of the hoisted object, so that the device can reduce the swing amplitude during the load transfer process, significantly improve the stability of hoisting and transferring, and improve the overall assembly efficiency of the energy storage container.

The utility model relates to the technical field of photovoltaic flexible supports, in particular to a mountain flexible photovoltaic support system. The flexible supporting structure comprises a plurality of sets of flexible supporting systems arranged side by side, and the flexible supporting structure comprises end stand column assemblies arranged at the two ends, a plurality of sets of middle stand column assemblies arranged between the end stand column assemblies at the two ends and a steel cable system penetrating through the end stand column assemblies at the two ends and the middle stand column assemblies. The end stand column has the advantages that the end stand column is of a single-stand-column structure, the number of foundations of the end stand columns is reduced by half, meanwhile, construction is facilitated, and installation efficiency is improved.

The utility model belongs to the field of sliding plug door, concretely refers to sliding plug door door shaft subassembly, sliding plug door drive arrangement, sliding plug door and vehicle. Sliding plug door door shaft subassembly includes door shaft and is fixed on the upper crooked arm of door shaft, still includes the link frame link for hinging with connecting seat, link frame link and upper crooked arm are connected through connecting rod, and upper crooked arm, link frame link and connecting rod form four connecting rod mechanism, and the part of four connecting rod mechanism far from upper crooked arm is hinged with the transmission rod for connecting the swing end of guide frame, to make swing end drive door shaft rotation through transmission rod and four connecting rod mechanism. Sliding plug door drive arrangement includes above-mentioned sliding plug door door shaft subassembly. Sliding plug door and vehicle all include above-mentioned sliding plug door drive arrangement. Through the configuration link frame link and connecting rod, the upper crooked arm of door shaft is changed into a rod of four connecting rod mechanism, and the utility model only needs to adopt shorter transmission rod to transmit the left and right swing of guide frame as the reciprocating rotation of door shaft, saves a large amount of space near door shaft, helps to promote the utilization of vehicle front wall space.

This utility model relates to the field of automotive headrest support rod manufacturing technology, and in particular to a ring-shaped LED lighting lamp. The mounting base and base have interconnected grooves inside. Multiple movable locking blocks are installed on the inner walls of the base and grooves. Movable fixing posts are provided inside the grooves of the mounting base and base. Limiting components that cooperate with the locking blocks are provided at the top and outer sides of the fixing posts. By engaging the upper hemisphere of the limiting component with the locking blocks, the lighting lamp can be installed simply by pushing it upwards. Pushing the lighting lamp upwards again releases the limiting component, allowing it to be removed. Two upward pushes are sufficient for both installation and removal of the lighting lamp, making it faster than existing technologies and minimizing the swaying of the worker's body during installation.

The treadmill comprises a base and a runway arranged on the base, the treadmill further comprises a stand column arranged on the base, the stand column is located in front of the runway, a containing bin is arranged on the side, away from the runway, of the stand column, a safety belt and a winding structure rotationally arranged on the stand column are arranged in the containing bin, and one end of the safety belt is connected with the winding structure; a safety belt outlet is formed in the side, facing the runway, of the stand column, the safety belt outlet is communicated with the containing bin, and at least part of the safety belt extends out of the safety belt outlet. The utility model provides a treadmill to solve the technical problems that a safety belt of an existing treadmill causes the movement range of a user to be too small, the user feels uncomfortable easily, and the user is prevented from using a whole treadmill runway.

The utility model provides a kind of drill pipe with righting assembly and applicable to multi-caliber drilling, the drill pipe with righting assembly and applicable to multi-caliber drilling includes multi-section drill pipe and righting assembly, righting assembly is equipped at the connecting place of two adjacent sections drill pipe, the righting assembly includes sleeve and coarse diameter joint, the coarse diameter joint is fixedly connected with two adjacent sections drill pipe, the sleeve is equipped above the coarse diameter joint and is sleeved on the drill pipe, the outer diameter of the sleeve is greater than the outer diameter of the coarse diameter joint. The drill pipe with righting assembly and applicable to multi-caliber drilling of the utility model embodiment, by setting righting assembly to limit the movement of drill pipe, the swing amplitude of drill pipe can be effectively reduced, so as to avoid the drill pipe in drilling to be waveform bending, reduce the probability of broken rod condition, improve the safety of construction.