89results about How to "Pull effort" patented technology

The invention discloses a buried elevating-type environmentally-friendly dustbin which comprises an outer box body. The top of the outer box body is provided with a bracket, and an elevating mechanism is fixed to the bracket. Supporting protruding strips are arranged on two inner side walls opposite to the outer box body respectively, and the inner side faces of the supporting protruding strips are provided with grooves. An inner cavity of the outer box body further contains an elevating platform connected with the elevating mechanism. The side face, opposite to the supporting protruding strips, of the elevating platform is provided with a first idler wheel set and a second idler wheel set. The rolling surface of the first idler wheel set and the rolling surface of the second idler wheel set abut against the left side face and the right side face of each supporting protruding strip in an attached mode respectively. A plurality of adjustable roll balls are further arranged on the side face of the elevating platform between the first idler wheel set and the second idler wheel set, and the rolling surfaces of the adjustable roll balls abut against the bottom faces of the grooves. A first containing box and a second containing box are arranged on the elevating platform, and the top of the first containing box and the top of the second containing box are provided with rubbish throwing boxes respectively, wherein the rubbish throwing boxes are communicated with corresponding inner cavities of the first containing box and the second containing box. The buried elevating-type environmentally-friendly dustbin solves the technical problem of an existing buried elevating-type dustbin.

The invention discloses an indoor heating and ventilation boiler capable of automatically removing ash. The indoor heating and ventilation boiler comprises an outer furnace, a sliding rail, a sliding block, an ash receiving disc, an idler wheel, a first rotary shaft, an iron cover, a magnet, an inner furnace, a dust screen, an induced draft fan, a first motor, a second rotary shaft and the like, wherein the sliding rail is horizontally arranged at the bottom of the interior of the outer furnace and is connected with the outer furnace through bolts; and the sliding block is arranged on the sliding rail. The indoor heating and ventilation boiler can automatically remove coal cinder when used to improve the working efficiency and improve the coal combustion effect.

The invention relates to a destroying device, in particular to a destroying device for used syringes. The destroying device for used syringes can crush the syringe and collect the syringe and a needlehead, and is convenient to operate and high in working efficiency. The destroying device for used syringes comprises a box body, an L-shaped clamping plate is connected to the outer side of an opening of the box body in a clamped mode, a through hole is formed in the side, close to the box body, of the L-shaped clamping plate, and the through hole is communicated with the interior of the box body. An injector is placed into the two special-shaped pressing plates, the discharging end of the needle cylinder is clamped into the clamping plate, the u-shaped plate is pulled to move leftwards, theneedle cylinder can move leftwards to be separated from the needle head, the separated needle cylinder and needle head fall into the left portion and the right portion in the box body respectively tobe collected, operation is convenient, and the working efficiency is high.

The invention relates to the field of fixing devices for lamp holders, in particular to a quick disassembly and assembly mechanism of a ceiling lamp. The mechanism comprises a fixed plate and a mounting plate, wherein the fixed plate is fixed on a ceiling, and a first lock catch assembly is arranged on the fixed plate; the mounting plate is used for mounting the lamp and hinged on the fixed plate, and a second lock catch assembly is arranged on the mounting plate; and the mounting plate is detachably locked on the fixed plate by the match of the second lock catch assembly and the first lock catch assembly. Compared with the prior art, the separation and locking of the mounting plate and the fixed plate are realized by mutual separation and locking of the second lock catch assembly and the first lock catch assembly, so the mechanism is convenient to disassemble, assemble, clean and connect.

The invention discloses an intelligent roadway receding-free stereo garage. The intelligent roadway receding-free stereo garage comprises stand columns, support frames and side rails arranged on the stand columns, wherein the side rails are provided with rail tracks and sliding driving devices, a rotating platform is arranged between the side rails, the rotating platform comprises a sliding support, a rotating support, a chain, a rotating driving device, a lifting driving device and a dragging frame connected with the lifting driving device through a steel wire rope, wherein loop bars are arranged between the dragging frame and the rotating support, the dragging frame is provided with a translation driving device, a driving chain and a U-shaped dragging frame body, the end ports of the U-shaped dragging frame body is provided with an electromagnetic lock, one end of the dragging frame is provided with an electromagnetism pyramidal tip plug, the support frames are provided with parking plates, the bottom of the parking plates are provided with wheels, and inserting holes and conical hoes are formed in the parking plates. The intelligent roadway receding-free stereo garage can be applied to fields with narrow space, the location is accurate, the dragging plates are stable in the ascending and descending processes, an automobile does not need to swerve in a parking lot, and the parking is convenient.

The present invention discloses a portable mathematical probability demonstrator. The portable mathematical probability demonstrator comprises a box body; a small ball container groove I and a small ball container groove II are installed in the box body; a small ball inlet is installed on the top of the box body; a ball outlet is arranged below the small ball inlet; a baffle is installed below the ball outlet; the back surface of the box body is provided with a pull rod; the front surface of the box body is provided with nixie tubes; the bottom of the box body is provided with a base; a drawer is installed in the base; the outer surface of the drawer is provided with a handle; and the four corners of the base are connected with universal casters. Since the portable mathematical probability demonstrator is provided with the nixie tubes, so that the demonstrator can automatically record the number of small balls, and therefore, the correctness of the counting of the small balls can be ensured, and mistakes in manual counting can be avoided; and the portable mathematical probability demonstrator is provided with the pull rod, and the pull rod can be used in cooperation with the universal casters, and therefore, a lot of forces can be saved when a user pulls the portable mathematical probability demonstrator, and inconvenient in carrying the demonstrator in teaching can be avoided, and the portability of the whole demonstrator can be improved.

The invention relates to the technical field of bags and suitcases, and discloses an anti-topple intelligent labor-saving suitcase capable of being pulled on stairs. The suitcase comprises a shell, wherein wheels are movably connected to the lower side of the shell; when the suitcase is pulled, rotation shafts are driven to rotate, so that finally the suitcase can be pulled on the stairs; the defect that the traditional suitcase cannot be pulled on the stairs is changed; the suitcase is more labor-saving when being pulled on the stairs; the practicability of the whole device is increased; whenthe suitcase is inclined, inner rods stretch outwards, so that pulleys in hidden grids are driven to be in contact with the ground, to support the suitcase, so that the suitcase is prevented from being impacted by collision, and the suitcase is prevented from being damaged by collision; and when the suitcase is pulled after the pulleys are in contact with the stairs, the rotation shafts are rotated, so that the pulleys are lifted to the upper stair, the defect that the traditional suitcase cannot be pulled on the stairs is changed, and thus the suitcase is more labor-saving when being pulledon the stairs.

The invention provides a rope-free curtain used for simplifying the winding mode of a digging rope. According to the technical scheme, the rope-free curtain comprises a moving part, an extensible part, a pulling rope fixing base and a pulling rope. One end of the extensible part is used for being fixedly connected with an external environment, the other end of the extensible part is connected with the moving part, and the moving part moves left and right along with the extensible part. The pulling rope fixing base is used for being fixedly connected with the external environment. The moving part is provided with at least one first transverse pillar which is transversely arranged, the pulling rope fixing base is provided with at least one second transverse pillar which is transversely arranged, and the pulling rope which penetrates through a curtain body bypasses the first transverse pillar and the second transverse pillar and then is fixed on the moving part or the pulling rope fixing base.

The invention relates to the technical field of grape planting and particularly relates to a grape trellis which is convenient to transport and is rapid to mount. The grape trellis comprises a main pile; combined V-shaped brackets are arranged on the main pile; connecting holes are formed in the brackets; mounting holes are formed in the main pile; the brackets are positioned in the mounting holes; the bottom ends of the bracket is movably connected with the mounting holes; a locking part is also arranged at the bottom end of each bracket. According to the invention, the sum of volumes of the bracket and the main pile is equal to the volume of a main pile in the original scheme, so that materials are saved; the brackets can be stored into the mounting holes, are in a regular shape and is convenient to store and transport; the brackets are movably connected with the main pile and the grape trellis is rapid and convenient to mount, is high in efficiency and is suitable to commonly use in the vineyard erection.

The invention discloses an erasable blackboard capable of moving left and right. The erasable blackboard capable of moving left and right mainly comprises two blackboard bodies, wheels, pulleys, a front track, a rear track, a transverse slot and an erasing device. The two blackboard bodies can move left and right through the wheels and the movable pulleys, and a function of labor saving is achieved. The transverse slot which connects the front track and the rear track has a certain gradient so that the blackboard bodies can move front and back freely. Four longitudinal slots which sponge devices can be inserted in are arranged on the back of each blackboard body. The wetness degrees of sponges in the sponge devices are different so that the blackboard bodies can be cleaned and wiped conveniently. When the sponges are dry, water can be directly added to the sponges through a water storage device. When the two blackboard bodies move face to face, the sponges on the back of the front side blackboard body will wipe and clean the rear side blackboard body. The whole wiping process is carried out both on the back of the front side blackboard body and on the back of the rear side blackboard body, so that dust is reduced beneficially. When the sponges are dirty, the sponges can be taken out to be washed at any time. Through the structure, the erasable blackboard capable of moving left and right has the advantages of being simple in structure, time-saving, labor-saving, clean, and low in pollution, improving teaching efficiency, and protecting the physical and mental health of both teachers and students.

The invention discloses an artificial intelligence management and control processing analysis system for rice, an isolation greenhouse is fixedly mounted on the edge of the top end of a mounting foundation, fixed foundations are uniformly arranged at the positions, corresponding to the inner side of the isolation greenhouse, of the top end of the mounting foundation, and rectangular grooves are uniformly formed in the top ends of the fixed foundations; a rectangular groove is formed in the middle of the top end of the fixed-point monitoring and moisturizing mechanism, an embedded long plate is clamped in the rectangular groove, and a rectangular liquid guide groove is formed in the middle of the top end of the embedded long plate. The water content in the seedling raising plate at the corresponding position can be quickly judged through the simple color change of the color developing cloth strips, so that fixed-point spraying irrigation is carried out in time, the irrigation process of the seedling raising plate is effectively optimized, the waste of water resources caused by repeated irrigation in the traditional concentrated irrigation process is prevented, and the water resource utilization rate is improved. The irrigation accuracy in the seedling raising process is effectively improved.

The invention discloses a bedside table special for a medical ward, and belongs to the field of medical. The bedside table comprises a bedside table body, wherein a pair of sliding chutes are formed in side ends of the bedside table body; sliding blocks are connected with the inner ends of the sliding chutes; the sliding blocks are matched with the sliding chutes; a second connection rod is fixedly connected to one end, far away from the corresponding sliding chute, of each sliding block; a first connection rod is fixedly connected to one end, far away from the corresponding sliding block, ofeach second connection rod; a sliding rod is fixedly connected to the upper ends of the connection rods; a glass plate is arranged below the sliding rod; the lower end of the glass plate is fixedly connected to the upper end of the bedside table body; an expansion link and a first extension spring are fixedly connected to the middle end of the sliding rod; the first extension spring is connected with the outer side of the expansion link in a sleeving manner; a fastening screw is connected to the expansion link; and a baffle plate is fixedly connected to one end, far away from the sliding rod,of each of the expansion link and the first tension spring. According to the bedside table, rubbish and blots on the surface of the bedside table can be quickly and efficiently cleared, so that the bacterium breeding speed is reduced, and the secondary infection of patients is reduced.

The invention provides a curtain bead-pull driving device. The curtain bead-pull driving device comprises a base, a brake disc, a pipe stopper, movable wedges, and a bead disc, wherein the base is fixedly arranged, and a mandrel is arranged on the base; an umbrella-shaped oblique plane is arranged at the rear end of the brake disc, the brake disc is arranged on the mandrel in a penetrated mode, and the base limits rotating of the brake disc when the brake disc is in abut connection with the base; the pipe stopper is used for driving a curtain reel pipe to rotate, and the pipe stopper is connected with the brake disc in a linked mode; the movable wedges are movably arranged on the umbrella-shaped oblique plane of the brake disc, and located between the pipe stopper and the base; and the bead disc is arranged on the outer portion of the brake disc in a sleeving mode, and connected with the movable wedges in a linked mode, and when the bead disc rotates, the bead disc compresses the movable wedges, so that the movable wedges drive the brake disc to be separated from the base. The curtain bead-pull driving device has the beneficial effects that the bead-pull driving device can achieve the self-locking function with a torsion-spring-free structure, thus a curtain is stable when being opened or closed, moreover, large friction force cannot be generated, labor is also saved when a user pulls the curtain, and the curtain bead-pull driving device is stable and reliable when being used.

The invention discloses an indoor safety lock which comprises a fixed base and a baffle block, wherein the fixed base comprises a mounting plate and a hinged block; the hinged block and the mounting plate are integrally formed; a strip-shaped hole is formed in the hinged block; one side of the baffle block is provided with a rotary shaft; the rotary shaft is inserted into the strip-shaped hole and capable of rotating in the strip-shaped hole; an elastic part capable of horizontally supporting the rotary shaft is arranged in the strip-shaped hole; the inner side of the hinged block is provided with a clamping edge; and a clamping slot matched with the clamping edge is arranged on the baffle block. According to the scheme, during mounting, only the fixed base is required to be mounted on a door frame, and a fixing part is not required to be arranged on a door plate, so that damages to a door are relieved.

The invention provides a labor-saving ice-breaking device for fishing in winter. A handle is welded to the right side of the top end of a rod column, a grasp ring is adhered to the outer wall of the top end of the rod column, an upper ice edge is welded to the top end of the right side of the rod column, a top edge is integrally arranged on the top of the upper ice edge, a side edge is integrallyarranged on the right side of the upper ice edge, a cone body is welded to the bottom end of the upper ice edge, a lower ice edge is welded to the middle of the right side of the rod column, accommodating rooms are embedded into the front and back sides of the bottom end of the rod column, a floating pad is movably connected to the top end of each accommodating room through a rotary shaft, an inflating room is embedded onto the back side of the floating pad, an inflating port is embedded into the top end of the back side of the inflating room, movable rooms are embedded onto the left and rightsides of the bottom end of the rod column, a plywood is movably connected to the middle of each movable room through a movable shaft, a pull rod is welded to the bottom end of the plywood, a bottom cone is welded to the bottom end of the rod column through a connecting rod, and a buffer spring is embedded into the middle of the connecting rod. The whole device is stable in structure, convenient to use and operate, quick in ice-breaking speed, small in cracks of ice-broken ice faces and labor- and time-saving.

The invention provides a double-pulley tackle based on an unmanned aerial vehicle. The double-pulley tackle comprises a tackle body provided with an opening, an advancing pulley and a lifting pulley,wherein the advancing pulley is located in the tackle body and the lifting pulley is located at the lower end of the tackle body; a baffle is arranged on the tackle body, and the baffle is rotationally connected with the tackle body so as to open or close the opening; the double-pulley tackle further comprises a pull rope and a sliding rod, wherein the sliding rod is located above the tackle bodyand can move up and down; one end of the pull rope is arranged on the baffle, and the other end is arranged at the lower end of the sliding rod; a pull ring convenient for clamping the unmanned aerialvehicle is arranged at the upper end of the sliding rod; the unmanned aerial vehicle clamps the pull ring to drive the sliding rod to move upwards, and the sliding rod moves upwards to drive the pullrope to pull the baffle so as to open the opening, so that a wire enters the tackle body from the opening and is matched with the advancing pulley, and only the unmanned aerial vehicle needs to be operated to drive the double-pulley tackle to move to the guide wire, without using an operation rod to pull the pull rope; and therefore the operation is simple and convenient, and the use of the double-pulley tackle is more convenient.

The invention relates to a spring-open type fuel tank lock which comprises a joint seat, a fuel tank cover and a locking unit, wherein the joint seat comprises a sleeve barrel and a fixed rack connected with the sleeve barrel; the fuel tank cover comprises a cover body pivoted on the sleeve barrel of the joint seat and a clamping piece convexly arranged on the cap body; the locking unit comprisesa swing piece which can be pendularly pivoted on the fixed rack and a pulling piece for driving the swing piece, and the swing piece is provided with a stop unit and a pulling unit which match mutually and form a preset angle therebetween. The swing piece is matched with the clamping piece in a swing mode to match with the stop unit and the pulling unit with the preset angle therebetween so as toensure that the moving tendency of the pulling piece can be changed in accordance with the preset angle, the front part of a motorcycle is miniaturized, and the pulling piece drives the swing piece ina more labor-saving way.

The invention discloses a charging interface protection device of an electric vehicle and an electric vehicle, characterized in that the electric vehicle comprises a vehicle body, the vehicle body comprises a housing and a charging device, the charging device is arranged in the housing, the charging device comprises a charging interface, the housing comprises a charging hole, the charging hole isarranged on the housing, and the charging interface is embedded into the charging hole from the housing toward the housing; The charging interface protection device blocks the charging interface fromthe outside of the charging interface to protect the charging interface, the outside of the charging interface is on the same side as the outside of the housing, and the charging interface protectiondevice comprises a protection plug which is inserted into the charging interface or the charging hole, and the protection plug is used for protecting the charging interface. As that protection deviceof the char interface comprises a protection plug, the main body of the protection plug is completely plug into the charging interface or the charging hole, and when the shell is impacted, the main body of the protection plug can resist the impacting force and play a cushioning role, so that the char interface is not easy to be damaged.

The invention discloses a fertilizer applicator, and relates to the technical field of fertilizer application equipment. According to the technical scheme, the fertilizer applicator comprises a fertilizer application box, a feeding port is formed in the middle of the top end of the fertilizer application box, a top cover is in threaded connection above the feeding port, a boss is arranged at the bottom of the top cover, and the outer wall of the boss is wrapped with a sealing gasket; and handle bolts are arranged at the top end of the fertilizer application box and located at the two sides ofthe feeding port, straps are connected to the handle bolts at the two sides, a discharging port is formed in the bottom end of the fertilizer application box, a feeding pipe is installed at the discharging port, an air exchange box is installed at the bottom end of the right side wall of the fertilizer application box, and air holes are formed in the air exchange box. The fertilizer applicator hasthe beneficial effects that the labor intensity can be reduced; and when the fertilizer applicator is used for powdery fertilizer, dead material arching of materials in the fertilizer application box1 can be avoided, so that the effect of buffering the fertilizer is achieved, material arching is avoided, the fertilizer can be quantitatively put into a pipeline, the fertilizer saving effect is achieved, soil is easily broken to reach crop roots, the soil hardening phenomenon is reduced, and the utilization rate of the fertilizer is improved.

The invention relates to the field of transportation tools, in particular to a multifunctional luggage barrow which comprises a frame, a handle arranged at one end of the frame and a pair of walking assemblies symmetrically arranged on the two sides of the end, away from the handle, of the frame, luggage is placed on the frame, and the walking assemblies are rotationally connected with the frame;the walking assembly comprises a pair of symmetrically-arranged mounting plates and a plurality of auxiliary wheels rotationally arranged between the two mounting plates, the multiple auxiliary wheelsare arranged at equal angles, and two auxiliary wheels of the multiple auxiliary wheels abut against the ground. The luggage barrow has the effect that the luggage barrow can climb stairs conveniently.

The invention discloses an aerial cable, and relates to the technical field of aerial cable laying. The aerial cable comprises a cable body, wherein an auxiliary mechanism is arranged on the outer side of the cable body and used for assisting installation of the cable body. The angle of a movable pulley is adjusted by rotating a threaded sleeve, so that the movable pulley can move in bridges of different sizes, the contact area of the cable body and the bridges is reduced, and the friction force between the cable body and the bridges can be effectively reduced through rotation of the movable pulley, so that the cable body can be pulled in a labor-saving mode, and the cable body can be simply tensioned when the cable is laid. In the erecting process, an auxiliary cable bears the gravity of the cable body through a C-shaped fixing frame, the force used by the installation personnel when the cable is pulled is effectively reduced, the work intensity of the installation personnel is greatly reduced, and the cable body can be tensioned simply in a labor-saving manner when the cable is laid.

The invention belongs to the technical field of automobile part tools, and particularly relates to a valve rocker arm. The valve rocker arm comprises a middle arm body, wherein a boss is arranged on the middle arm body, a rocker arm shaft hole is formed in the boss, the rocker arm shaft hole and the boss are in transition through a circular-arc-shaped surface, internal threads are formed in a supporting point connecting hole, the supporting point connecting hole is connected with the end of a supporting point rocker arm through an arc-shaped inwards-concave surface, and the separation distance between the rocker arm shaft hole and an air valve rocker arm is larger than the separation distance between the supporting point rocker arm and the rocker arm shaft hole. The valve rocker arm is simple in structure, stress borne by a leaf spring seat can be well reduced, use intensity can be greatly improved, and the service life is prolonged.

The invention discloses a nursing bed provided with an intensive-care bed for the internal medicine. The nursing bed comprises a main bed board, a main mattress and a headboard, wherein support plates are symmetrically arranged on the left and right sides of the lower end of the main bed board, sliding chutes are formed in the bottoms of the inner sides of the support plates, an intensive-care bed board adaptive to the sliding chutes is arranged between the sliding chutes, an intensive-care mattress is embedded on the intensive-care bed board, and rolling wheels contacting the ground are arranged at the lower end of the intensive-care bed board; guide sleeves with baffle pins are arranged at the front sides of the support plates, and the guide sleeves are arranged above the sliding chutes; the headboard is arranged on the left side of the main bed board, and an infusion rack is arranged on the headboard; and baffle devices are symmetrically arranged on the front and rear sides of the main bed board. The nursing bed provided by the invention is reasonable in structural design and convenient to use, the rest of family members of a patient is facilitated, and thus the operational performance of the nursing bed is enhanced; when the patient is nursed, the privacy of the patient can be protected, meanwhile, the infusion and dining of the patient are facilitated, and the nursing difficulty is alleviated.

Disclosed is a privacy shelter device of a bed in a student dormitory. The privacy shelter device comprises a shelter article and a fixing mechanism. Cloth or a plastic film or fiber paper is adopted as the shelter article. The fixing mechanism comprises headposts, a hanging plate is arranged on the headposts, a cross rod is connected in the hanging plate, sliding rings are arranged on the upper portion of the shelter article, and the cross rod is sleeved with the sliding rings. Clamping grooves are formed in the hanging plates and are in contact with the sliding rings, connecting bands are arranged on the lower portion of the shelter article, and clamping balls are arranged on the lower portions of the connecting bands. Embedded grooves and ball nests are arranged in a cross frame of the bed, the embedded grooves are matched with the connecting bands, and the ball nests are matched with the clamping balls. Tying bands are arranged on the two side edges of the shelter article and are tied on the headposts or bound with tying bands on adjacent shelter articles.

The invention relates to the field of curtains, in particular to an intelligent curtain. The intelligent curtain comprises two pieces of curtain fabric, an opening and closing structure, a sliding rod, two bases, a guide structure and a clamping groove; the two pieces of curtain fabric are seamed in a protective sleeve, the opening and closing structure is connected with the sliding rod in a sliding mode, and then a pulling rope can be pulled to drive a plurality of positioning sleeves to slide on the sliding rod, so that the two pieces of curtain fabric can be driven to slide relatively or oppositely through the positioning sleeves, and the two pieces of curtain fabric are controlled to be opened and closed on one side, so that the curtain fabric can be conveniently applied to the interior of a child room and applied to windows with relatively high height; the sliding friction force of the positioning sleeves is changed into rolling friction through the guide structure, so that pulling of the positioning sleeves is more labor-saving, and convenience is brought for children to operate; meanwhile, the positioning sleeves are more uniform in stress, so that the opening and closing effect of the curtain is better; simultaneously, the opening and closing structure drives the curtain fabric to vibrate when driving the guide structure to roll on the sliding rod, so that insects can be effectively prevented from gathering on the curtain fabric, and the storage effect of the curtain fabric is better.

The invention belongs to the technical field of medical service equipment, and discloses a hand-operated type automatic mounting and dismounting stretcher to achieve the technical purposes that by means of the hand-operated type automatic mounting and dismounting stretcher, canvas can directly pass through the part below the human body, and the safety guarantee of a patient is enhanced. According to the technical scheme, a transverse plate of a first long edge rod of a framework is provided with a fixing rolling rod, a movable pull plate is located in the middle of the framework and is parallel to the first long edge rod, a plate body of the movable pull plate is transversely provided with a plurality of sets of guiding rolling pipes in parallel, one end of a double-layer canvas belt is fixedly connected with the fixing rolling rod and winds the fixing rolling rod, the other end of the double-layer canvas belt is divided into two layers which are turned through the corresponding guiding rolling pipes to be fixedly connected with the transverse plate of the first long edge rod to form a multi-layer cloth belt, the two ends of the fixing rolling rod are connected with the two ends of the movable pull plate through steel wires and pulley sets respectively, a second long edge rod of the framework is provided with a buckle, and the two ends of the fixing rolling rod are provided with hand-operated device transmission devices for controlling rotation of the fixing rolling rod. The hand-operated type automatic mounting and dismounting stretcher can be widely applied to rescuing patients.