6694 results about "Torsion spring" patented technology

Provided is a self-adaptive identification method for nonlinear dynamic parameters of a reducer, which belongs to the design field of a reducer. The method includes: modeling a harmonic reducer corresponding to a flexible joint as a concatemer of a rigid reducer and an elastic torsion spring, and carrying out dynamic theoretical modeling and parameter variable independence processing on the concatemer to form a dynamic equation for parameter identification; giving an optimized motion trajectory to each joint of a robot and controlling the robot to act accordingly, acquiring relevant data needed for parameter identification based on a built-in torque sensor and double encoders inside the joint; using an offline identification algorithm to accurately identify a plurality of dynamic parameters of a collaborative robot considering joint flexibility and friction, and obtaining a minimum parameter set.

Disclosed in the present invention is a ceramic green body machining device, comprising a sedimentation tank, a supporting platform, a height-adjustment platform and a cleaning platform. According to the present invention, during use, when a counterweight plate is close to a distal end of a sweeping frame and a liquid dispensing chamber is fully loaded, the weight of a press block area exceeds the torsion of a torsion spring, and the liquid dispensing chamber and the press block would fall down from an accommodation groove until the liquid dispensing chamber and the press block are perpendicular to the accommodation groove; in this case, a cleaning liquid is sprayed from one side of the liquid dispensing chamber by means of a second spray head, thereby effectively rinsing an area to which a first spray head cannot spray; a polishing sand layer on an arc-shaped plate would be attached to a rough area on the surface of a ceramic green body and rotates along with the rotation of a mounting arm to rotationally grind the rough area, thereby improving ceramic green body manufacturing effects; and when a cooling liquid flows down from a contact area between the polishing sand layer and the surface of the ceramic green body, the cooling liquid cools the surface of the ceramic green body. The present invention is conducive to the discharging of dust generated in the grinding process and avoids cracking caused by excessive local drying of the surface of the ceramic green body.

The invention discloses a torsion spring automatic injector dose adjustment positive and negative rotation sound production structure, which comprises a knob, a clutch tooth and a jumping tooth, the knob is sleeved on the periphery of the clutch tooth, the upper end face of the clutch tooth is provided with an inner ratchet ring, the knob is internally provided with an inner ring, the upper end face of the inner ring is provided with an outer ratchet ring, and the outer ratchet ring is provided with an outer ratchet ring. The jumping teeth are movably installed in the knob, the jumping teeth are provided with connecting keys or connecting ratchets, the lower end face of each jumping tooth is provided with an inner tooth block and an outer tooth block which are meshed with the inner ratchet ring and the outer ratchet ring respectively, and a plurality of rotating clamping grooves are further formed in the knob. A plurality of rotary clamping blocks clamped into the rotary clamping grooves respectively are arranged on the side edges of the jumping teeth, and the rotary clamping blocks can rotate by a certain angle in the rotary clamping grooves. According to the design, an axial tooth jumping sounding structure is adopted, when the dosage is adjusted, the adjusting knob is rotated clockwise to the desired dosage, the adjusting knob is rotated anticlockwise to return to the zero position, and jumping sounding can be achieved through meshing of spring force in the forward and reverse rotation process.

The invention discloses a folding wing and rudder design method and an unfolding locking mechanism thereof. The locking mechanism comprises a connecting handle, an elastic torsional spring and a rotating shaft. A locking head and a connector are arranged on the two sides of the bottom of the folding wing or the folding rudder respectively; the design method comprises the steps of obtaining performance parameters, and determining specific indexes such as folding sizes and unfolding time of the folding wing and the rudder. And designing a structural model according to principles of generalization, reliability and the like, and determining geometric parameters of the wing and the rudder. Verifying the strength of parts of the locking mechanism, calculating a plurality of parameters of an elastic torsion spring, and analyzing the unfolding time and synchronism. Finally, consistency checking is conducted based on finite element simulation analysis, torque and bending moment are applied in ABAQUS software according to parameters, the structural strength of the folded rudder is analyzed, and it is ensured that the design meets the requirement. According to the folding wing and rudder design method, through the scientific design process and multi-principle comprehensive application, the high-performance requirement is met, meanwhile, the cost is effectively reduced, the reliability and maintainability of products are improved, and the remarkable beneficial effects are achieved.

An auto-injector comprising an elongate housing containing a syringe. The housing having an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring pushing the needle from a covered position into an advanced position, operating the syringe and covering the needle. An activator arranged to lock the spring prior to manual operation and capable of, upon manual operation, releasing the spring means for injection. A first gear arrangement and a second gear arrangement arranged fro converting torque from a first end and a second end of the torsion spring into a translative force. The first end groundable in the housing while the second end acts on a plunger through the second gear arrangement for advancing the needle and supplying the dose.

The clutch injection structure comprises a shell, a release button, a clutch cylinder, a small push rod, a large push rod, a torsion spring and a push rod driving piece, the push rod driving piece is installed in the shell, a first driving ratchet wheel is arranged on the push rod driving piece, the lower end of the large push rod is connected with the push rod driving piece, and a second driving ratchet wheel is arranged at the lower end of the large push rod. A first driving ratchet is arranged at the lower end of the large push rod, the push rod driving piece is in threaded connection with the small push rod, a second driving ratchet is arranged on the large push rod, a second driving ratchet is arranged at the lower end of the clutch cylinder, a gap is formed between the lower end of the clutch cylinder and the large push rod, and the torsion spring is connected with the shell and the clutch cylinder. The release button is connected with the clutch cylinder and can drive the lower end of the clutch cylinder to be connected with the large push rod. The design is simple in structure, convenient to produce and assemble and low in cost.

A spiral excitation assembly of a prefilled automatic injection pen and a prefilled automatic injection pen comprising the spiral excitation assembly. The spiral excitation assembly of the prefilled automatic injection pen comprises: a cavity (6) for changing a rotary motion of a threaded push rod (5) into an axial forward movement; a nut (9), which is capable of being rotatably mounted in the cavity (6) relative to the cavity (6), with a torsion spring (7) capable of driving the nut (9) to rotate being arranged between the nut (9) and the cavity (6); the threaded push rod (5), which is in threaded connection with the interior of the nut (9) and driven by the rotation of the nut (9) to move forward and then drive a prefilled syringe (4) to move to complete automatic needle insertion; a clutch member (10), which is sleeved outside the nut (9) and capable of being driven by an excitation sleeve (3) of the prefilled automatic injection pen to move from an engaged position to an excitation position, wherein the clutch member engages with the nut (9) to stop the nut (9) when in the engaged position, and the nut (9) can rotate when the clutch member is in the excitation position; and a clutch spring (8), which is mounted between the clutch member (10) and an end cover (11) and is used for driving the clutch member (10) from the excitation position into a limiting position to limit backward movement of the excitation sleeve (3) to achieve needle protection post-injection, and to cause the clutch member (10) to collide with the nut (9) to produce a sound.

The invention relates to an electric energy metering box, and relates to the technical field of electric energy metering boxes, the electric energy metering box comprises a cabinet body, a plugging assembly, a driving assembly and a synergistic assembly, one side of the cabinet body is in an opening shape, the opening end is hinged to a cabinet door, and the cabinet door is provided with a ventilation hole; the plugging assembly comprises a plugging block and a torsional spring, the plugging block is rotationally connected to the cabinet door through a rotating shaft and located on one side of the ventilation hole, and the plugging block is matched with the ventilation hole; two ends of the torsional spring are fixedly connected with the plugging block and the cabinet door respectively, and the torsional spring is in a free state in an initial state; the two ends of the driving assembly are connected with the plugging block and the cabinet door correspondingly and used for driving the plugging block to plug the ventilation hole. The synergistic assembly is arranged in the cabinet body and is used for further absorbing moisture in the cabinet body. The electric energy metering box has the effect of improving the safety of the electric energy metering box.

The invention relates to the technical field of welding equipment, in particular to an adjusting device for steel structure welding. Comprising a base, a clamp is installed on the base, the device further comprises a measuring mechanism, the measuring mechanism comprises a U-shaped plate, the clamp is installed on the top face of the U-shaped plate, the U-shaped plate is arranged on the upper side of the base, a swing frame is hinged to the front side of the U-shaped plate, a first torsion spring is arranged between the swing frame and the U-shaped plate, a rectangular plate is fixedly connected to the top of the swing frame, and a universal shaft is fixedly connected to one side of the rectangular plate. According to the invention, through the design of the measuring mechanism, in the process of placing the I-shaped steel, the inclined surface of the I-shaped steel is contacted with and extrudes the rear side surface of the contact plate, so that the contact plate can rotate by taking the joint of the universal shaft as the circle center, and tension or thrust is applied to the telescopic ends of the first telescopic rod and the second telescopic rod; therefore, the inclined plane of the I-shaped steel is measured, the angle of the I-shaped steel can be adjusted subsequently, and the I-shaped steel can be welded more conveniently.

The invention relates to the technical field of pen-type injection devices, in particular to a self-driven automatic injection device which comprises a shell, a medicine bottle support, a driving device and a control device. A needle puncture-proof protection assembly is arranged on the lower portion in the shell, the needle puncture-proof protection assembly comprises a needle hiding sleeve, and the needle puncture-proof protection assembly is configured in the mode that in the injection process or after injection is completed and the needle hiding sleeve is pulled out, the needle hiding sleeve can be locked, and then injection cannot be continued; an energy storage locking assembly is arranged on the upper portion of the interior of the shell and is configured in the mode that before injection, the driving rod is locked by the needle hiding sleeve, when one end of the needle hiding sleeve is stressed to move towards the driving rod, the driving rod is unlocked, the torsional spring provides driving force to enable the driving rod to drive the push rod to move towards the medicine bottle, and injection is achieved. Stable and reliable injection power can be provided, and injection can be rapidly achieved; in addition, the needle hiding sleeve can be locked no matter the needle hiding sleeve is pulled out during injection or after injection is completed, so that the needle hiding sleeve does not retract inwards, secondary injection is prevented, and safety and reliability are achieved.

The utility model discloses a crane lifting rope limiting device in the technical field of crane lifting hooks, which comprises an anti-falling mechanism, the anti-falling mechanism comprises a hook, the hook comprises a connecting end and a hook body, the tail end of the hook body is fixedly connected with the lower end of the connecting end, an assembly groove is formed in the hook in a penetrating manner, a winding disc is rotatably arranged in the assembly groove, and the winding disc is fixedly connected with the hook body. A rotating shaft is movably inserted into the winding disc, the two ends of the rotating shaft are sleeved with anti-disengaging pieces, the head end of the hook body is fixedly connected with a limiting block, and the ends, away from the rotating shaft, of the anti-disengaging pieces abut against the limiting block. The limiting mechanism comprises a torsional spring arranged on the winding disc in a sleeving manner; during use, when the torsion spring drives the winding disc and the anti-disengaging piece to deflect upwards, a steel cable is unwound, at the moment, the limiting piece loses tension, meanwhile, the limiting piece is pushed to move upwards through the first spring, at the moment, the lifting rope is conveniently limited through the limiting piece, the possibility that the lifting rope continuously shakes in the hook body is reduced, and the lifting rope is more convenient to limit.

The invention relates to the technical field of welding devices, and discloses a low-alloy structural steel welding device capable of cleaning surface welding slag, which comprises a welding frame, a rotating frame is rotatably mounted on the welding frame, a driving gear ring is rotatably mounted on the rotating frame, and a feeding and discharging station, a preheating station, a welding station and a slag cleaning station are sequentially arranged on the welding frame in the anticlockwise direction. A guide shaft is rotationally mounted at the position, corresponding to the slag removal station, of the welding frame, a guide gear meshed with the driving gear ring is mounted on the guide shaft, and four welding systems are mounted on the welding frame. Through differential meshing design of the fan gear and the driven gear and in combination with an elastic reset mechanism of the torsional spring, the cleaning frame generates a circulating switching mode of'high-frequency small-amplitude vibration 'and'low-frequency large-amplitude vibration' at the slag cleaning station, the high-frequency vibration can accurately crush loose welding slag, the low-frequency vibration can effectively shake off the firmly attached welding slag, and therefore the welding slag cleaning efficiency is improved. And the two modes alternately act to cover welding slag characteristics generated by different welding processes.

The invention belongs to the technical field of heat exchange, and particularly relates to a wall scraping type film evaporator for concentrated liquid based on a hydraulic support, the wall scraping type film evaporator comprises an evaporation cylinder, angle control units are uniformly arranged in the evaporation cylinder in the circumferential direction, and a displacement adjusting unit is arranged at one end of each angle control unit; through toothed belt transmission between toothed belt wheels, the torque between a torsion spring and an angle rod is dynamically adjusted, the vertical dip angle between a scraping plate and the barrel wall of an evaporation barrel is linearly adjusted, and meanwhile the compression amount between a ball head and an eccentric wheel is changed through eccentric interaction between an end ring and the eccentric wheel when the end ring rotates; after the vertical inclination angle of the dynamic adaptive scraper is adjusted, the gap between the scraper and the wall of the evaporation cylinder is constant, the film thickness is stabilized, and the heat transfer uniformity of unit area is improved; the number of teeth and the modulus between the control gear ring and the end dividing gear are linearly adjusted, the steering difference between the steering ring pipe and the angle pipe is dynamically adjusted, the horizontal dip angle between the scraper and the barrel wall of the evaporation barrel is linearly matched, and material flowing and film uniformity are optimized.

The invention belongs to the technical field of electric power inspection, and discloses a power distribution equipment unmanned aerial vehicle and an inspection method. The bottom of the unmanned aerial vehicle body is fixedly connected with a camera; the camera is fixedly connected with a camera air injection assembly, and the air outlet end of the camera air injection assembly faces the camera lens. The unmanned aerial vehicle body is provided with a moving assembly which is movably connected with the cable. The moving assembly is fixedly connected with a beating assembly; the beating assembly comprises a rotating block, a rubber sleeve, a first rotating plate, a transverse shaft, a torsional spring, a rotating bearing and a connecting transverse rod, the transverse shaft is fixedly connected with the side wall of the moving assembly, the inner end of the torsional spring is fixedly connected with the moving assembly, and the outer end of the torsional spring is fixedly connected with the first rotating plate; according to the invention, the accuracy of an image collected by the camera is ensured, blurring is avoided, dust removal while moving is realized, the outer wall of a cable is cleaned, and the surface of the cable is inspected in a later period.

The utility model relates to the technical field of power equipment, and particularly discloses a power transmission and distribution line connection device with a temperature monitoring function, which comprises a lead wire clamp, a drainage wire clamp and a temperature monitoring assembly, the lead wire clamp and the drainage wire clamp are respectively provided with a lead wire clamping channel, and the lead wire clamping channels of the lead wire clamp and the drainage wire clamp are perpendicular to each other. A wire inlet of the wire clamp is located in the side wall of the wire clamp, two locking assemblies are arranged at the wire inlet, and each locking assembly comprises a locking rod, a hinge shaft and a torsional spring. The wire clamp can realize live-line connection operation of the drainage wire in the vertical direction of the power transmission wire, and the power transmission wire clamp has an anti-wire-loosening design, so that the wire can be fixed by a single person, and the anti-vibration and anti-loosening performance is greatly improved compared with a traditional device after the wire clamp is closed. Meanwhile, the wire clamp is integrated with a temperature monitoring function, so that the temperature of the wire at the connection position can be monitored in real time, and temperature abnormity can be found in time.

Provided in the present invention is a gravity-free spring roller blind controller. The gravity-free spring roller blind controller comprises a torque adjustment assembly and a torsion spring connecting rod assembly. The torque adjustment assembly comprises a bracket, a torsion spring mounting seat, a guide sleeve, and a roller blind sleeve. A one-way torsion spring is sleeved on a mounting shaft of the torsion spring mounting seat, the guide sleeve is further rotatably sleeved with a torque adjustment knob, the guide sleeve is provided with a first flange, and a second flange is provided on the torque adjustment knob. The first flange reversely pushes the one-way torsion spring so that the one-way torsion spring is locked tightly onto the mounting shaft. According to the present invention, the torque of the torsion spring on the torsion spring connecting rod assembly is increased or decreased by forwardly or reversely rotating the second flange.

The utility model discloses a steel wire rope pressing and looseness preventing integrated device which comprises a rotating frame assembly, a microswitch, a first rolling shaft and a second rolling shaft. Wherein the first rolling shaft is located in the middle of the rotating frame assembly and coupled with the machine shell, and the second rolling shaft is located at the other end of the rotating frame assembly. The torsion spring arranged at the first end of the rotating frame assembly ensures that when the motor operates normally, the pressure of the tightened steel wire rope on the first rolling shaft maintains the stability of the rotating frame assembly. When resistance is encountered, the loosened steel wire rope causes the torsion spring to push the rotating frame assembly to trigger the microswitch, so that the motor is stopped, and damage is prevented; therefore, safety, stability and maintenance efficiency are improved, and cost and space occupation are reduced.

The invention discloses a portable martial arts action correcting device, and relates to the field of sports equipment, the portable martial arts action correcting device comprises a first binding piece and a second binding piece, the first binding piece and the second binding piece are respectively fixed on the arm and the forearm of a user, the portable martial arts action correcting device further comprises a pull rope, a fixing shell, a winding piece, a limiting assembly and a transmission mechanism, the winding piece is rotationally installed in the fixing shell, and a coil spring is arranged between the winding piece and the fixing shell. According to the portable martial arts motion correcting device, the device is fixed to the arm and the forearm of a user through the first binding piece and the second binding piece, the pull rope and the winding mechanism are integrated in the fixing shell, real-time motion monitoring without external energy dependence is achieved, the transmission mechanism drives the first limiting piece to make contact with the second limiting piece, and motion correcting is achieved. And when the elbow joint is close to a set threshold value, the friction resistance is increased, clear tactile feedback is provided, impact caused by rigid braking is avoided, and a soft constraint protection mechanism is formed.

The present invention discloses a flapping-wing aircraft capable of catapult takeoff and having a sweep-torsion mechanism, belonging to the field of aircraft technology. The aircraft comprises: a fuselage frame, left and right flapping wings, a passive torsion mechanism, a sweep mechanism, a catapult takeoff mechanism, a transmission flapping mechanism, and a tail rudder, wherein: a passive torsion mechanism and a sweep mechanism are provided at the roots of the left and right flapping wings, the catapult takeoff mechanism is provided in the middle of the fuselage, and a hip joint, thigh, ankle joint, calf, foot, and toe joint are provided from top to bottom, the inner and outer sides of the hip joint are controlled by a servo motor for relative rotation, the ankle joint and toe joint are provided with elastic energy storage torsion springs, a synchronous pulley and its drive mechanism are provided between the outer side of the hip joint and the outer side of the ankle joint to control the relative rotation between the thigh and the calf, and perform energy storage for catapult takeoff. In summary, the aircraft can perform catapult takeoff flight, and can perform passive torsion and sweeping motions during the flapping of the wings, which helps to increase the flapping wing lift and the overall payload of the aircraft.

The invention discloses an air jet loom reed defect detection device, and relates to the technical field of detection, the air jet loom reed defect detection device comprises a support table, a rotating shaft is rotatably connected in the support table, the surface of the rotating shaft is fixedly sleeved with a clamping gear, and the surface of the rotating shaft is movably sleeved with two torsion springs; the opposite ends of the two torsion springs are fixedly connected with the two sides of the clamping gear, so that the upward moving distance of the lifting rack is larger than the upward moving distance of the telescopic outer rod, then the lifting rack drives the rotating gear to rotate in a large range, a worker is conveniently reminded of unevenness of a reed wire on the reed, the reed is conveniently detected, and the working efficiency is improved. And meanwhile, a user can conveniently amplify detection data, so that a slight height difference can be conveniently amplified, a worker can be conveniently assisted in watching, the detection convenience is improved, the phenomenon of omission is prevented, and unqualified reeds are prevented from flowing into the market to the maximum extent.

A toothbrush includes a brush head linkage (100), a connecting mechanism (200) and a toothbrush handle (300); the connecting mechanism (200) includes a first connector (210), a second connector (220) and an elastic structural element (230) connected to the second connector (220); the first connector (100) is rotatably connected to the second connector (220), and the axis of rotation extends in a front-rear direction; and the elastic structural element (230) includes at least one return torsion spring (231), the return torsion spring (231) includes a helix spring (2311) in the form of a cylinder with an opening of the cylinder oriented in a direction parallel to an extension direction of an oscillating reference line, the helix spring is in stop fit with the second connector (220) in a direction perpendicular to the oscillating reference line, and the return torsion spring further includes a first torsion bar (2311) and a second torsion bar (2312) respectively connected to a front end and a rear end of the helix spring (2311). The toothbrush according to the present disclosure can protect teeth.

The agriculture and forestry water sprinkler comprises a water sprinkler body, the water sprinkler body comprises a fixed pipe frame, a movable pipe frame, a water spraying nozzle, a water distribution device, a water pressing device and a rotating device, the rotating device comprises a shifting piece, a linkage assembly, a lock hook, a first limiting component and a second limiting component, and the water distribution device comprises a water distribution component and a water distribution torsional spring. The water sprinkler body is provided with an adjusting wheel seat in a semi-hidden mode, the water distribution component is rotationally connected with the movable pipe frame through a rotating shaft, the adjusting wheel seat is rotationally connected to the rotating shaft, one end of the water distribution torsional spring is fixedly connected to the adjusting wheel seat, and the other end of the water distribution torsional spring is connected to the water distribution component in a rotation stopping mode. The water distribution torsion spring always has the movement trend of driving the water distribution component to reset and cling to the movable pipe frame; and a positioning structure is arranged between the adjusting wheel seat and the rotating shaft. The swing frequency of the water distribution component and the torque of the water distribution torsion spring can be adjusted, the adjusting wheel seat is prevented from accidentally rotating during operation, and the operation stability is improved.

The invention provides a high-safety medicine cabinet drawer, which comprises a drawer tray, a drawer main body, a driving assembly, an anti-pinch assembly, a buckle assembly, a linkage assembly and a controller, the driving assembly comprises a motor, a screw rod and a push plate, the anti-pinch assembly comprises a fixed seat, an anti-pinch plate and a spring, the anti-pinch plate is provided with a trigger block, the fixed seat is provided with a signal sensor, and the signal sensor is connected with the buckle assembly. The buckle assembly comprises a connecting base, a turning plate and a torsional spring, a buckle piece is arranged on the turning plate, a clamping block is arranged on the push plate, the linkage assembly comprises a transmission rod, one end of the transmission rod moves along with the anti-clamping plate, and the other end of the transmission rod is in linkage with the turning plate; when the anti-clamping plate moves, the trigger block triggers the signal sensor, the controller controls the motor to stop working, meanwhile, the transmission rod drives the turning plate to rotate, and the buckle piece and the clamping block are separated so that the drawer body can independently move relative to the push plate. According to the invention, through the collaborative design of multi-sensor redundancy triggering and mechanical linkage instant unlocking, a dual protection mechanism is formed, and the hidden danger of hand clamping is thoroughly solved.

The invention discloses a boron trifluoride purification device and a boron trifluoride purification method, and relates to the technical field of boron trifluoride purification. The boron trifluoride purification device comprises an adsorption tower, the side face of the adsorption tower is connected with a material mixing tower through a pipeline, the side face of the material mixing tower is connected with a light component removal tower through a pipeline, and the side face of the light component removal tower is connected with a heavy component removal tower through a pipeline. The side surfaces of the light component removal tower and the heavy component removal tower are connected with a three-waste treatment bin through pipelines. The boron trifluoride purification method comprises the steps that after gas is introduced into the mixing tower, a servo motor is started, and a rotating cylinder, a rotating disc, a torsional spring, an extrusion block, a fixing block, a hydraulic device, a first stress rod, an arc-shaped rod, a first spring, a rotating block and a mixing plate are matched, so that the residence time of the gas in the mixing tower can be prolonged when needed, and the mixing effect of the device is improved.

An example manure application unit can include: a main arm pivotally mounted to a toolbar mount tube; a coulter blade operatively connected to the main arm; a closure arm pivotally mounted to the main arm; a closure blade mounted to the closure arm; a main arm downforce assembly, operatively connected between the toolbar mount tube and the main arm, to provide an adjustable downforce force to maintain the coulter blade engaged with ground; and a closure arm torsion spring, operatively connected to the closure arm, to provide varying downforce forces on the closure blade to maintain the closure blade engaged with the ground during operation.

The invention discloses a seabed mineral and biological resource collection device, equipment and method. The device comprises a suction head, an automatic return mechanism, an automatic lifting mechanism and an environment sensing module, the suction head is used for sucking seabed to-be-collected objects; the automatic return mechanism is arranged in the suction head and consists of a main body frame, a torsional spring hinge, a limiter and a guide plate, and the guide plate can passively adjust the height away from the bottom according to the size of an object to be mined on the seabed through the matching of the torsional spring hinge and the limiter; the automatic lifting mechanism is located on one side of the suction head and comprises a carrying platform, a lifting module, a gravity balance swing arm and a posture sensing module, and the posture sensing module monitors the posture of the suction head and adjusts the lifting module, so that the suction head is kept horizontal and the height away from the bottom is preset; the environment sensing module can sense environment parameters in real time, accurately recognize physical characteristics of seabed to-be-collected objects and dynamically adjust the flow of a water pump to reduce overall energy consumption. According to the invention, double effects of efficient collection and energy-saving collection of submarine minerals and biological resources are realized.

The invention relates to the technical field of transmission, in particular to an annular transmission mechanism and a nuclear waste glass curing forming device. In the annular transmission mechanism, a reference shaft and a ratchet wheel are coaxially and fixedly connected, and the reference shaft is provided with a matching end used for transmission matching. The blocking arm is fixedly connected to the end, away from the reference shaft, of the swing arm. The first pawl is rotationally matched with the end, away from the reference shaft, of the swing arm and matched with a torsional spring so that the first pawl can be attached to the ratchet wheel. When the first pawl reciprocates along the ratchet wheel, the ratchet wheel can be intermittently driven. When the first pawl does reciprocating motion along the ratchet wheel, ratchets of the ratchet wheel can periodically push the first pawl to the side where the blocking arm is located, so that the first pawl can periodically extrude the pressing part. The temperature control can be synchronously completed while transmission is realized, and the matching degree between the transmission and the temperature control is further improved.

The low-resistance range hood check valve comprises a driving ring, a longitudinal guide ring, connecting rods and a valve plate, the longitudinal guide ring is arranged in an inner ring of the driving ring, the valve plate is arranged in the inner ring of the driving ring, a plurality of inclined guide grooves are formed in the positions, corresponding to the connecting rods, of the driving ring, and a plurality of longitudinal guide grooves are formed in the positions, corresponding to the connecting rods, of the longitudinal guide ring. The connecting rod sequentially penetrates through the oblique guide groove and the longitudinal guide groove and is hinged to the valve plate. According to the low-resistance check valve for the range hood, through rotation of the driving ring and matching and limiting of the oblique guide groove and the longitudinal guide groove, the connecting rod moves up and down, the valve plate is dragged to be switched between the opening state and the closing state, and the requirement for conducting or cutting off a pipeline channel is effectively met; the movement trend that the valve plate covers the fixed base due to the dead weight or the torsion spring is avoided, it is effectively guaranteed that no pressure loss is caused to the air pressure of the draught fan in the opening state, and the oil smoke suction and exhaust effect of the range hood is improved.

The utility model belongs to the technical field of lamp fixing parts, and relates to a lamp fixing clamp which comprises a lamp positioning assembly and a lamp clamping seat arranged on the lamp positioning assembly, and the lamp clamping seat is rotatably connected with the lamp positioning assembly. The lamp positioning assembly comprises an upper positioning clamping arm, a lower positioning clamping arm and a torsional spring, and the upper positioning clamping arm and the lower positioning clamping arm are connected and form clamping action through the torsional spring; wherein the upper positioning clamping arm comprises an upper pressing part and a bending part, the lower positioning clamping arm comprises a lower pressing part and a clamping part, the upper pressing part and the lower pressing part are oppositely arranged in parallel, and the upper pressing part and the lower pressing part are matched to drive the bending part and the clamping part to move relatively; the fixing clamp is adopted to replace a grounding tip of an existing lamp fixing piece, so that the fixing effect of the lamp fixing piece in an outdoor place is better, and even if a colored lamp with a certain weight is installed, the lamp fixing piece is not prone to falling off.

According to the keyboard torsional spring assembling production line, after a keyboard needing to be provided with a torsional spring is fed to a conveying line through a feeding station and conveyed to an assembling station, a transverse movement driving module drives a transverse movement plate to transversely move, a longitudinal movement driving module drives a longitudinal movement plate to longitudinally move, and a lifting driving module drives a lifting plate to ascend and descend; the clamp is driven to place the torsion spring into the mounting position of the keyboard; therefore, a mechanical mechanism is used for replacing a traditional manual mode to place the torsional spring into the installation position of the keyboard to complete installation, the situation that the assembling quality of the keyboard is affected by the skill level, experience, working intensity and working fatigue of assembling personnel can be effectively avoided, and the yield of each keyboard is increased; the invention belongs to the technical field of automatic equipment.