248results about How to "Change length" patented technology

The invention discloses a skin color and facial form variable expression robot. The eyebrow mechanism and the eye mechanism are fixedly connected, the eyebrow mechanism, the eye mechanism and the mouth mechanism are all connected with the deformation mechanism, the eyebrow mechanism, the mouth mechanism and the deformation mechanism are all installed on the head shell mechanism, the neck mechanism is fixedly installed at the bottom end of the mouth mechanism, and the skin color changing mechanism is attached to the head shell mechanism and used for achieving replacement of the skin color of the robot. The deformation mechanism is mainly driven by a worm and gear structure, and deformation of the eyebrow and the mouth of the robot is achieved through the worm and gear structure. According to the machine, self-adaptive face transformation according to human face characteristics is achieved, the face shape, the skin color and the pupil color can be rapidly changed according to different application scenes, rich mouth shapes can be achieved, and the requirement for real-time dialogue is met.

The invention belongs to the field of optical parametric oscillators, and particularly discloses a cavity length control device and method for a femtosecond pulse synchronous pump optical parametric oscillator, and a temperature control element is arranged on a metal bottom plate and used for adjusting the temperature of the metal bottom plate; and the temperature controller is electrically connected with the temperature control element and is used for adjusting the temperature of the temperature control element according to the characteristic parameters of the light output by the optical parametric oscillator so as to adjust the temperature of the metal bottom plate to adjust the cavity length of the optical parametric oscillator. The temperature of the temperature control element is accurately adjusted through the temperature controller, fine control over the temperature of the metal bottom plate is achieved, then fine control over the length of the metal bottom plate is achieved, small changes of the length of the metal bottom plate can be directly reflected to changes of the cavity length, and therefore high-precision adjustment of the cavity length is achieved; and compared with expensive devices such as piezoelectric ceramics and precise stepping motors, the manufacturing cost and the maintenance difficulty are reduced, and meanwhile, the overall performance and stability of the system are improved.

The novel viscous damper with the early warning function comprises a first connecting assembly, a piston assembly, an early warning device and a second connecting assembly, the piston assembly comprises a first piston rod, a second piston rod, a sealing piece, silicone oil, a piston and an oil cylinder, and the first piston rod is fixedly connected with the first connecting assembly; sealing pieces used for sealing the first piston rod, the second piston rod and the silicone oil are fixed to the two ends of the oil cylinder, the two sealing pieces are in sliding connection with the first piston rod and the second piston rod respectively, and a piston is in clearance fit with the inner wall of the oil cylinder; the early warning assembly comprises a permanent magnet, an RGB three-color lamp, a copper wire and a rear connecting pipe, the copper wire is wound around the other end of the first piston rod, and the copper wire is electrically connected with the RGB three-color lamp. The second connecting assembly is arranged, the mounting angle and position can be changed, mounting can be achieved more conveniently, vibration energy can be converted into current, and an RGB three-color lamp is used for alarming and prompting.

The high-voltage wire harness assembly for the new energy automobile comprises a wire harness body, connectors are installed at the two ends of the wire harness body, and the wire harness body is sequentially provided with a wire layer, an insulating layer, a protective layer, a shielding layer and a sheath layer from inside to outside; the winding and unwinding mechanism is used for winding and unwinding the wire harness body and comprises a sleeve fixedly arranged outside the wire harness body in a sleeving mode, a sliding ring is slidably arranged outside the sleeve in a sleeving mode, a supporting plate is fixedly welded to the upper end of the sliding ring, a vibration sensor is embedded in the supporting plate, and a mounting plate is slidably connected to the upper end of the supporting plate. An adjusting mechanism for adjusting the supporting plate is arranged on the mounting plate; and the compensation mechanism is used for compensating the deviation of the wire harness body caused by vibration, and the compensation mechanism comprises two grooves arranged outside the sleeve. Compared with the prior art, the wire harness can be monitored, the service life of the wire harness can be prolonged, the length of the wire harness can be compensated, and the transmission efficiency of the wire harness is not affected.

The invention relates to a three-cluster galactose compound, a conjugate as well as a preparation method and application of the three-cluster galactose compound. Specifically, the invention relates to compounds of formula (I) and conjugates of the compounds and drug molecules. The invention also relates to a preparation method of the compound, and application of the compound and the conjugate in preparation of drugs for treating or preventing diseases related to expression or overexpression of genes in hepatocytes. # imgabs0 #

The present application relates to the technical field of spring heat treatment, and specifically discloses a heat treatment device for nickel-titanium alloy springs, comprising: a heat treatment box for tempering nickel-titanium alloy springs; a placement rod for placing nickel-titanium alloy springs; a clamping device for adjusting the pitch of nickel-titanium alloy springs; the clamping device comprises a clamping bracket, the clamping bracket is arranged outside the heat treatment box, the clamping bracket is connected with a first push cylinder and a second push cylinder, the output ends of the first push cylinder and the second push cylinder are facing the heat treatment box, the output end of the first push cylinder is connected with a first clamping terminal, and the output end of the second push cylinder is connected with a second clamping terminal. Due to the use of the clamping device, the supporting rings at both ends of the clamping spring can be clamped, and the length of the spring can be adjusted, thereby adjusting the pitch of the spring, thereby enhancing the tempering effect of the spring. At the same time, by setting a guiding mechanism, the feeding and withdrawing operations during the heat treatment of the spring are simple.

The invention provides a reverse osmosis pressure vessel end cover dismounting device, and relates to the technical field of water treatment equipment.The reverse osmosis pressure vessel end cover dismounting device comprises a supporting plate and a pull rod, a through hole is formed in the middle of the interior of the supporting plate, the pull rod movably penetrates through the through hole, a thread head is arranged at the lower end of the pull rod, and a first thread is arranged on the outer side of the thread head; a second thread is arranged on the outer side of the pull rod, a nut is mounted on the outer side of the pull rod through the second thread, and a gasket is movably arranged on the outer side of the pull rod below the nut; according to the structure of the end cover, the screw head with the first thread is in threaded connection with the central groove of the end cover, the supporting plate is limited on the opening of the pressure container, the handle is rotated to drive the nut to rotate, and the thread drives the pull rod to move upwards through the matching effect of the nut and the second thread of the pull rod; the whole process is labor-saving and efficient, the operation is convenient, and the end cover is not damaged.

The utility model discloses a multifunctional film-mulching seeding machine, belongs to the technical field of seeding machines, solves the problem that the existing seeding machine cannot complete all cultivation operations of seed seeding, and adopts the technical scheme that the multifunctional film-mulching seeding machine comprises a rack, the rack is provided with a pesticide spraying device, a rotary cultivator device, a ridging device, a seed rope seeding device, a fertilizing device, a drip irrigation tape laying device, a film laying device and an earthing device, the pesticide spraying device comprises a pesticide storage barrel and a pesticide spraying rod, the rotary cultivator device comprises a rotary tillage blade, and the seed rope seeding device comprises a seed rope disc, a seeding pipe and a seeding wheel. The fertilizing device comprises a fertilizer box, a fertilizer discharging box, a connecting pipe and a fertilizing shovel, the drip irrigation tape laying device comprises a storage disc and a laying wheel, the film laying device comprises a film erecting rod and a film spreading roller, the soil covering device comprises a soil covering roller and a soil covering disc, and a notch is formed in the surface of the soil covering roller. The seeder disclosed by the utility model can automatically finish all cultivation operations required by seed sowing.

The invention provides an intelligent water quality management and control system in a fishing and light integrated mode, and relates to the technical field of intelligent water quality management and control systems.The intelligent water quality management and control system comprises a connecting box, a storage box is installed in the connecting box, a water inlet pipe is bonded to the bottom of the storage box, and one end of the storage box is fixedly connected with a water pump; a water inlet pipe is installed at the bottom of the storage box, a water outlet pipe is installed at the bottom of the storage box, an electromagnetic valve is installed on the surface of the water outlet pipe, the water inlet pipe and the water outlet pipe are inserted into the bottom of the connecting box in a penetrating mode, a signal emitter is assembled at the top of the connecting box, and a management and control system body is installed at the top of the storage box. And then the sliding pipe is manually controlled to slide on the inner wall of the sliding cylinder, so that the length of the sliding pipe can be increased to a certain extent, and the transverse length and the vertical length of the sliding pipe can be well changed.

The invention relates to the technical field of mixing machines, and discloses an automatic rotating vertical helical ribbon mixer which comprises a mixer body, a helical ribbon stirrer is arranged in the mixer body and comprises a rotating shaft and a helical ribbon, a spherical bearing is mounted at the top of the mixer body, and the upper end of the rotating shaft is inserted into the spherical bearing. A shell is mounted at the top of the spherical bearing, a speed reducer for driving the rotating shaft is mounted in the shell, a motor for driving the speed reducer is mounted on the outer side of the shell, an electric push rod is arranged at the top of the mixing machine body, the telescopic end of the electric push rod is rotationally connected with the shell, a limiting rod is mounted on the outer side of the rotating shaft, and an annular groove is formed in the inner wall of the mixing machine body; the ends of the limiting rods are inserted into the inner sides of the annular grooves. The motor drives the speed reducer to drive the helical ribbon stirrer to rotate, and the limiting rod and the annular groove are matched for use, so that the electric push rod drives the helical ribbon stirrer to revolve, the load of electrical connection is reduced, and the mixer body is more economical and efficient.

The invention discloses a land area measuring device for land resource investigation, and particularly relates to the technical field of measuring devices.The land area measuring device comprises a device shell and a fixing cone, universal wheels are fixedly connected to the four corners of the lower end of the device shell, a handle is fixedly connected to the front end of the device shell, and a measuring rope is fixedly connected to the outer surface of the fixing cone; the inner surface and the rear end of the device shell are jointly provided with a retractable fixing assembly, and a cleaning assembly is arranged at the position, behind the retractable fixing assembly, of the inner surface of the device shell. According to the land area measuring device for land resource investigation, the hammering mechanism and the limiting mechanism enable the measuring rope to cling to the ground when the measuring rope measures the land area, and the measuring rope is temporarily fixed on the ground and clings to the ground in the rope releasing measurement process, so that the measuring rope is prevented from being damaged. The measuring rope is effectively prevented from shaking due to wind interference or human factors, the measuring stability of the measuring rope is improved, the measuring accuracy is further improved, and the deviation of a measuring result is reduced.

The reciprocating wire feeding mechanism comprises a reciprocating sliding structure and a power driving structure, the reciprocating sliding structure comprises a reciprocating sliding block, a first fixing base is arranged on the left side of the reciprocating sliding block, a second fixing base is arranged on the right side of the reciprocating sliding block, and two sliding guide rods are connected between the first fixing base and the second fixing base; a kidney-shaped blind hole is formed in the rear side face of the reciprocating sliding block, a first through hole penetrating left and right is formed in the reciprocating sliding block, the power driving structure comprises a motor assembly, an eccentric wheel and an eccentric wheel bearing, and the eccentric wheel bearing is inserted into the kidney-shaped blind hole; the invention further discloses a wire feeding device for achieving automatic welding wire feeding, the wire feeding device comprises a reciprocating wire feeding mechanism and a four-roller wire feeding mechanism, and the reciprocating wire feeding mechanism and the four-roller wire feeding mechanism are connected with a man-machine interaction system. The reciprocating wire feeding device has the beneficial effects that the wire guide pipe is driven to do linear reciprocating motion, and reciprocating wire feeding is achieved; the welding wire conveying reciprocating frequency is improved, and the welding effect is improved; the structure is simple and operation is stable and reliable.

The invention discloses an arthroscopic joint gap enlarging device for treating meniscus tearing, which relates to the technical field of medical instruments and comprises a control part, a distraction part and an adjusting part, the distraction part enters through a minimally invasive channel, an arthroscope is used for assisting observation, the position of the rear frame provided with the middle shaft is located at an opening of the skin, the distraction part is opened through the control part, and when distraction is completed, the position of the middle shaft of the rear frame cannot damage the minimally invasive opening of the skin; in the distraction process, the telescopic assembly is controlled through the control part to adjust the distraction part on the inner side of the skin according to the weight of the patient, the depth of tissue and the size and position of the joint, so that the individual difference of different patients can be met without moving the relative position relation between the middle axis position of the rear frame and the skin.

The invention relates to a superconducting current lead device with an adjustable power-on length and an adjusting method thereof.The device comprises a current lead conducting rod, a connector, a telescopic arm, an electric device, a power-on flexible wire, a power-on bus and a superconducting cable, a motor for driving the telescopic arm to stretch out and draw back is arranged in the electric device, the telescopic arm stretches out and draws back to drive the connector to be connected with or separated from the current lead conducting rod, the power-on length of the current lead conducting rod is changed, the connector is further connected with a power-on bus through a power-on flexible wire, one end of the power-on bus is connected with the power-on flexible wire, and the other end of the power-on bus is connected with a superconducting cable. Compared with the prior art, the length of the superconducting current lead can be automatically adjusted, heat leakage caused by the current lead in a superconducting cable or a superconducting device system is effectively reduced, and the effect of adjusting the length of the current lead according to current so as to reduce heat loss is achieved.

The utility model relates to the technical field of silica gel production, in particular to a silica gel foaming device which comprises a base, the base is provided with a calendering mechanism, a coating mechanism and a baking mechanism; the calendering mechanism is arranged between the coating mechanism and the baking mechanism; the calendaring mechanism comprises a fixed seat and a calendaring roller; an accommodating cavity is formed in the calendering roller; a middle sealing plate is fixedly arranged in the middle of the accommodating cavity; the accommodating cavity is provided with a first oil cavity and a second oil cavity; the first oil cavity is provided with a first corrugated pipe air bag; the second oil cavity is provided with a second corrugated pipe air bag. By controlling the air pressure in the first corrugated pipe air bag and the air pressure of the second corrugated pipe air bag, the length of the first oil cavity in the axial direction and the length of the second oil cavity in the axial direction can be changed, the width of a heating area of the rolling shaft can be changed, and energy is effectively saved.

The utility model discloses a separating structure for separating a circuit breaker in an adjustable low-voltage cabinet, which relates to the technical field of low-voltage cabinets and comprises a cabinet body, a plurality of hollow connecting rail bars which are vertically arranged are fixed on one side of the inner wall of the cabinet body, a plurality of grooves which are vertically arranged are arranged on the other side of the inner wall of the cabinet body, and inner grooves are arranged in the grooves. Supporting rail bars are arranged in the multiple inner grooves in a sliding mode. And a plurality of adjustable separating pieces. The adjustable partition piece can be arranged at different positions through the inserting rail strips and the supporting rail strips, the two magnetic attraction rotating strips on the fixing strip are pulled out of the corresponding inserting grooves through the connecting belts, and then the transverse connecting plate or the vertical connecting plate connected with the fixing strip can be pushed and pulled, so that the length and the height of the partition piece are changed; and after the size is adjusted, the position of the magnetic suction rotating strip is fixed by using the suction force of the magnetic suction sheet, so that the separators can separate different types of circuit breakers, and the flexibility and expansibility of the separation structure are improved.

The utility model relates to the technical field of medical cotton swabs, and discloses a novel medical cotton swab which comprises a cotton swab mechanism, and the cotton swab mechanism comprises a swab body and a conical cotton head connected with the end portion of the swab body. The extension mechanism comprises an extension sleeve, one side of the extension sleeve is in an open shape, a cavity is formed in the extension sleeve, the tail of the rod body is inserted into the cavity, the tail end of the rod body is connected with a rubber ball, the outer surface of the rubber ball is tightly attached to the inner surface of the extension sleeve, and scale marking lines are arranged on the surface of the rod body and used for marking the entering depth. The design that the extension sleeve is located on the outer side of the stick body is adopted, damping limiting is achieved through the rubber ball and the inner surface of the extension sleeve when the rubber ball slides, and therefore the stick body can be quantitatively pulled out of the extension sleeve, and the overall length of the hand stick can be changed. And the device is more convenient for workers to use.

The utility model discloses a hanging rope assembly and terminal equipment, the hanging rope assembly comprises a first sliding fastener, a second sliding fastener, a hanging rope and a connecting rope, the first sliding fastener is provided with a first channel, the second sliding fastener is provided with a second channel, the hanging rope is provided with a hanging section used for being hung on a wearing part of a wearer, and the connecting rope is connected with the hanging section. The two ends of the hanging rope extend to the first side of the first sliding fastener through the first channel and are connected with the second sliding fastener, the connecting rope is provided with a connecting section used for being connected with the mobile terminal, at least one end of the connecting rope extends to the first side of the second sliding fastener through the second channel and is connected with the first sliding fastener, and the position of the hanging rope relative to the first channel is adjustable. And the position of the connecting rope relative to the second channel is adjustable so as to change the length of the connecting section. The rope length adjusting process can be simplified, and rope length adjustment is facilitated.

The invention belongs to the technical field of building perpendicularity detection, and discloses a perpendicularity detection mechanism for building engineering, which comprises a positioning piece, a positioning device, a detection device and a detection device, and is characterized in that the positioning piece is mounted on the outer side of a building wall and a template through the positioning device, and a tail plate is further mounted on the positioning piece; the movable hanging piece is movably installed in the middle of the tail plate on the upper portion, and a laser assembly is further installed at the bottom of the movable hanging piece; the bottom plate is installed on the tail plate below through a balance adjusting assembly, an electromagnet is further movably installed on the top face of the bottom plate, a hollow hose is arranged between the electromagnet and the movable hanging piece, and magnetic connectors are fixed to the upper end and the lower end of the hollow hose correspondingly; and the lifting piece is movably installed on the outer side of the hollow hose through a self-lifting adjusting mechanism, and a detection assembly is further fixed to the lifting piece. Through human-assisted alignment installation, automatic verticality detection is realized, operation is convenient and fast, verticality detection of large-span and story-height buildings is satisfied, and detection efficiency and accuracy are improved.

The utility model discloses an electroplating hanger, which relates to the technical field of hangers, and comprises a first hanger body and a second hanger body, both the first hanger body and the second hanger body are fixedly connected with fixing frames, and an adjusting assembly mechanism is arranged between the first hanger body and the second hanger body. The adjusting and assembling mechanism, the first frame body and the second frame body are each provided with a hanging tool, each hanging tool is provided with a fast assembling mechanism, and the adjusting and assembling mechanism comprises two adjusting frames and a plurality of assembling frames. According to the electroplating hanging frame, the length of the adjusting frame is changed, the needed number of installation grooves is exposed, then a handle is pulled to retract the fixing plug pins into the installation bases, then the installation bases are inserted into the installation grooves, the handle is loosened, reset springs lose pressure to reset the fixing plug pins, and the fixing plug pins are inserted into the installation bases to be fixed; the hangers can be adjusted and assembled according to actual production requirements, the number of the hangers can be conveniently changed, and therefore the use flexibility can be effectively improved.

This invention provides a bracket, a heat exchange component, and an air conditioner. The bracket is disposed on a heat exchanger and is used to fix the sterilization component. The bracket includes: a first bracket; a second bracket; and a connecting rod, which includes a first end and a second end, the first end being connected to the first bracket and the second end being connected to the second bracket. The first bracket is used to rotate around the first end, and the second bracket is used to rotate around the second end. The problem solved by this invention is how to make the sterilization bracket usable in different models of air conditioners. Compared with the prior art, the technical effect achieved by this invention is that by rotating the first and second brackets, the overall length of the bracket is changed, thereby enabling the bracket to adapt to different models of air conditioners.

The utility model belongs to the technical field of green buildings, and particularly relates to a green building engineering pile which comprises a first pile body and a second pile body, the second pile body is arranged in the first pile body in a sliding mode, an adjusting mechanism is arranged in the first pile body, the lower end of the second pile body is fixedly connected with a pile head, and a top disc is arranged at the upper end of the first pile body. The second pile body is driven to slide in the first pile body under the action of the adjusting mechanism, so that the length of the whole pile body can be changed, the pile can be driven into a deeper position, and the working efficiency is improved.

The utility model discloses an adjustable engineering foundation pit safety protection device, which belongs to the field of safety protection devices, and comprises upright posts, a base is fixedly connected to the lower ends of the upright posts, an adjustable protective fence is movably mounted between the upright posts, the upright posts can be conveniently pulled open through the arranged adjustable protective fence, a first connecting frame and a second connecting frame, and an inserting rod movably moves in an inserting pipe. The length of an adjustable protection plate is movably changed, the adjustable protection plate is conveniently and movably changed according to the length of the side edge of the foundation pit, a limiting hole and a limiting block are mutually blocked, a first connecting frame and a second connecting frame are not prone to being separated, and by arranging an angle adjusting assembly, a rotating block and a movable accessory, the angle is convenient to adjust; the adjustable protective fence is convenient to steer and movably adjust the angle, the adjustable protective fence is convenient to arrange along the irregular shape of the foundation pit, the adjustable protective fence can be used in cooperation with the angle adjusting assembly, the adjustable protective fence and the angle adjusting assembly can be used independently, flexibility is higher, and practicability is higher.

The utility model relates to the technical field of battery production equipment, in particular to a counter weight device for synchronous tape walking of slurry pulling lines, which comprises two machine tables, and a first transition roller and a second transition roller are respectively arranged on the two machine tables. The side edge of one machine table is further rotationally connected with a swing arm, a steering roller is arranged at one end of the swing arm, and a balancing weight is arranged at the other end of the swing arm. The balancing weight and the swing arm form a lever mechanism with the rotating shaft of the machine table as a fulcrum, the lever mechanism acts within the range defined by the upper limiting mechanism and the lower limiting mechanism, the problem that tension is not matched due to the fact that the rotating angle of the steering roller is too large is solved, and the structure has the advantages of being simple in structure, low in cost and the like; the length of the force arm is effectively changed by moving in the transverse waist groove, the assembling position is adjustable, and operation is convenient.

This utility model discloses a cold-rolled steel coil shearing device, relating to the field of steel coil shearing. The device includes a mounting bracket with a hollow interior. Supporting vertical plates are fixedly connected to both sides of the upper end of the mounting bracket. Cutting shears are slidably connected to the outer walls of the supporting vertical plates. The cutting shears move downwards to shear the steel plate. A mounting vertical plate is detachably connected to the side of the mounting bracket closest to the supporting vertical plates. The device places the steel plate below a conveyor roller, which rotates to transport the steel plate towards the cutting shears. The cutting shears move downwards to cut the steel plate. Clamping wheels on both sides clamp the outer walls of the steel plate, preventing lateral movement during transport. The extension and retraction of an electric telescopic rod allows the U-shaped frame to move upwards or downwards, and the sliding rod allows the clamping wheels to move upwards or downwards.

This invention discloses a construction solid waste conveying device, relating to the field of conveying technology. To solve the problem of material leakage, it specifically includes a conveying frame with a conveying assembly on its inner side. A feeding hopper is located at the top of the conveying frame on the infeed side, and an extended guide plate is located on the discharge side. The conveying assembly includes multiple linearly arrayed conveying rollers rotatably connected to the inner side of the conveying frame via roller shafts, and a conveyor belt driven by the outer walls of the multiple conveying rollers. Pullers are connected to the outer walls of the roller shafts via keys. This invention adds a conveyor belt to the roller conveyor system to close the gaps. Furthermore, by adding multiple partition plates, it prevents waste from rolling downwards during vertical lifting operations. The partition plates are also shaped like the letter "I," forming a relatively enclosed rectangular storage space, thus limiting the waste around its perimeter, preventing leakage, and improving conveying efficiency.

The present application relates to steel formwork turning plate technical field, especially to a kind of steel formwork turning plate structure for power plant chimney and use method.It includes fixed seat, the fixed seat is provided with symmetric and evenly distributed through-hole, the fixed seat is fixed with first hydraulic rod, the fixed seat is slidably connected with mounting seat, the mounting seat is slidably connected with first steel plate, the first steel plate is provided with symmetric and evenly distributed through-hole, the mounting seat is fixed with second hydraulic rod, the first steel plate is rotatably connected with symmetric distribution second steel plate, the first steel plate is hinged with symmetric distribution first fixed shell, symmetric distribution the first fixed shell is slidably connected with first sliding rod on opposite side.The first sliding rod of the present application pushes adjacent second steel plate to produce rotation, so as to change the overall arc of the device, so that the device can adapt to the construction of various diameter chimneys, reduce the formwork cost when chimney is built.

The utility model provides an adjustable weather modification rocket launching guide rail, including mainframe box, rotary support frame, adjusting plate, rocket launching guide rail, main guide rail, first telescopic vice guide rail and second limit vice guide rail, the rotary support frame is installed on mainframe box upper end, be provided with adjusting plate in the rotary support frame, be installed with rocket launching guide rail on adjusting plate upper end, be provided with main guide rail in rocket launching guide rail, be provided with first telescopic vice guide rail in main guide rail, be provided with second limit vice guide rail in main guide rail, this design has solved the problem that needs to change different model rocket frame guide rail back and forth when the launch of two kinds of rocket bomb length is inconsistent, the utility model discloses reasonable in structure, be provided with movable frame through setting up in fixed frame front end, it cooperates with sliding limit seat and first telescopic vice guide rail and second limit vice guide rail, need not to change rocket launching guide rail to launch different model rocket bomb.

The present invention provides a bed. The bed surface of the bed is composed of a first couch part, a third couch part and a fourth couch part that can be raised and lowered, and a fixed second couch part. Each couch part is equipped with a plurality of rollers. The first couch part, the third couch part and the fourth couch part are movable couch parts. The rotating shaft of the roller at the root of the movable couch part is inserted into the preset hole of the bed frame, and the movable couch part can be rotated and raised around the rotating shaft. A reversing roller is arranged near the lower part of the rotating shaft. The conveyor belt detours through the reversing roller under the lower part of the third couch part and the fourth couch part. Each time after bypassing the top roller of the couch part, it returns to the root of the couch part along the other side of the couch part, bypasses the reversing roller there, and then turns around to move forward to the destination. In this way, it can ensure that each frame can be raised and lowered freely, realize the adjustment of the patient's posture, and can smoothly convey the patient when all the frames are flat. The conveyor belt in the bed drags the mattress and the patient together by friction, and the mattress and the conveyor belt are gradually separated from the elastic belt at the end of the bed.

The utility model provides a double-glass assembly supporting pad, which belongs to the technical field of supporting pads and comprises a supporting pad and a plurality of liners detachably matched at the top of the supporting pad. A through groove is formed in the top of the supporting pad, a plurality of grooves are formed in one end, and a plurality of bulges are arranged at the other end; the bulge corresponds to the groove and can be embedded into the groove; the top of the liner is provided with the through groove, and the bottom is provided with a sliding protrusion. The sliding protrusions are matched with the through grooves. Limiting grooves are formed in the supporting pad and the liner, and limiting blocks are arranged in the limiting grooves. A limiting block is arranged in the top limiting groove; and the limiting block extends into the bottom limiting groove. The pad and the supporting pad can be prevented from sliding under the action of the limiting grooves and the limiting blocks, and the pad is prevented from falling off in the using process. The two groups of supporting pads can be connected with each other through the grooves and the bulges which are matched with each other, so that the overall length of the supporting pads can be adjusted according to use requirements, and the applicability is improved.