68 results about "Volute spring" patented technology

The invention relates to the technical field of aviation part manufacturing and metal punch forming, in particular to an aviation volute spiral spring punch forming method which comprises the following steps: a data acquisition step: acquiring real-time modulus data and a target geometric trajectory equation of a to-be-processed plate; an energy mapping calculation step: performing energy mapping on the trajectory equation, and determining a target strain energy density distribution diagram representing the energy dissipation gradient; a potential barrier parameter determination step: determining a deformation energy potential barrier parameter of the current forming position in combination with the real-time modulus; a rheology compensation resolving step: resolving a rheology compensation control instruction set containing ultrasonic excitation and piezoelectric driving parameters based on potential barrier parameters; a dynamic forming execution step: driving the dynamic rheological compensation die system to execute stamping operation; according to the method, dimension raising from geometric shape copying to energy flow control is achieved, the fatigue life of the spring is remarkably prolonged, and geometric consistency of the spring is remarkably improved.

The utility model relates to the technical field of power supply butt joint, in particular to a power supply rapid installation butt joint device which comprises an installation shell, a take-up wheel and a butt joint fixing assembly. A first rotating rod is arranged on the inner side of the take-up wheel; a coil spring is arranged on the inner side of the protective shell; a first spring is arranged on the inner side of the mounting shell; a limiting block is arranged on one side of the first spring; a cable is arranged on the outer side of the take-up wheel, and a first butt joint block is arranged on one side of the cable. According to the device, redundant cables are wound in the device in an automatic winding mode, the cables are prevented from being scattered randomly, and therefore the problems that in the using process of most power supply installation butt joint devices without the cable winding function or without the cable winding function, the cables can be scattered randomly, attractiveness is affected, walking inconvenience is possibly caused, and the service life of the power supply installation butt joint devices is affected are solved. And even safety accidents such as stumbling are caused.

The utility model discloses a socket with a take-up structure, which comprises a socket main body, and the lower end of the socket main body is provided with a take-up assembly used for preventing lines from being disordered. According to the utility model, the winding roller is arranged, the winding roller is used for winding the connecting line, taking down the plug, pressing the moving frame and pulling out the plug, the connecting line drives the winding roller to rotate, the winding roller drives the triangular block to rotate, the fixing pipe drives the scroll type spring piece to rotate, and the fixing rod is used for fixing one end of the scroll type spring piece. When the connecting line needs to be wound, the movable frame is loosened, the elastic pipe drives the movable frame to reset under the elastic action of the elastic pipe, the clamping block limits the triangular block, the winding roller is prevented from rotating, when the connecting line needs to be wound, the movable frame is pressed, the clamping block is separated from the triangular block, limiting of the winding roller is relieved, and the connecting line is wound. And the scroll type spring piece drives the winding roller to rotate so as to store the connecting line.

The utility model discloses a waterproof intelligent pet necklace applied to the technical field of pet necklace, including first necklace and second necklace, one end of second necklace surface is fixedly connected with the shell cover, the inside welding of shell cover has the locating rod, the surface of locating rod is around and connects the volute spring, the surface of volute spring is around and connects the connecting band of shell cover sliding connection, both ends of volute spring are fixedly connected with connecting band and locating rod respectively. Through first necklace and second necklace can be mutually split, make it as two pet necklaces use, also can be combined to become a necklace simultaneously. So as to be convenient for holding two pets simultaneously, need not hold two necklaces when walking two pets. And the split two necklaces can be apart a certain distance, that is convenient for two pets to move freely, will not be too much restraint, can be apart distance is limited, will not be too far away from the owner, and the owner is convenient for nursing management.

The utility model discloses an automobile suspension control arm, which belongs to the field of automobile accessories, and comprises a quick release mechanism, the quick release mechanism comprises a connecting seat, a plurality of rotating grooves are equidistantly formed in the connecting seat, elastic plates are arranged in the rotating grooves, rotating rods are arranged in the elastic plates, and the rotating rods are connected with the connecting seat. A coil spring is arranged on the outer wall of the rotating rod, the elastic plate is rotationally connected with the interior of the rotating groove through the rotating rod and the coil spring, a mounting rod is arranged in the connecting base, a plurality of clamping grooves are formed in the mounting rod at equal intervals, and a moving groove is formed in one side of the top end of the elastic plate. According to the automobile suspension control arm, the quick release mechanism and the buffer mechanism are arranged, so that when the control arm is used, the first lining is conveniently mounted and dismounted, after the first lining is damaged, the first lining is conveniently and independently dismounted and replaced, the whole swing arm assembly does not need to be replaced, and therefore the maintenance cost is reduced; and meanwhile, the dismounting efficiency of the first bushing is improved.

The application discloses a pest treatment device for a greenhouse, which comprises a supporting seat, a pest killing horizontal cylinder arranged above the supporting seat, a bottom block fixedly installed at the bottom end of the pest killing horizontal cylinder, a first rotating block fixedly installed at the bottom end of the bottom block, a first rotating frame fixedly installed at the top end of the supporting seat, the first rotating frame comprising two fixed plates and a fixed shaft between the two fixed plates, the first rotating block being rotationally connected with the fixed shaft, and a volute spring being installed between the first rotating block and the fixed shaft; in the application, when the light source in the light source pressing block in the pest killing horizontal cylinder is turned on, flying insects enter the pest killing horizontal cylinder through the through hole and the insect feeding and discharging groove under the phototaxis, then the left and right electromagnetic coils are cyclically turned on and turned off, the counterweight movable block is moved to adjust the barycenter position of the pest killing horizontal cylinder, the pest killing horizontal cylinder is deflected, the light source pressing block is moved to roll and crush the flying insects on one side, and the killing speed of the flying insects is improved.

The utility model relates to the technical field of automatic wire stripping machines, in particular to an automatic wire stripping and cutting machine which comprises a machine shell, a supporting rod is fixedly connected to the position, close to the bottom, of the inner side of the machine shell, and a swing rod is rotationally connected to the position, away from the machine shell, of one side of the supporting rod. The device has the advantages that the supporting rod, the swing rod, the rotating rod, the rotating disc, the sliding rod, the cover plate, the connecting block, the spiral spring, the rotating shaft, the sliding block and the positioning tool bit are matched with one another. According to the device, an elastic structure of a spiral spring is adopted to control a rotating disc to rotate, the rotating disc rotates to drive a rotating rod and a swing rod to swing, in this way, the swing rod can control a sliding rod to ascend and descend, the sliding rod can control a sliding block and a positioning tool bit, and in this way, the spiral spring can control the limit resistance of the positioning tool bit; and the elasticity of the spiral spring also enables the positioning tool bit to be reset, so that the effect of directly cutting the cable without measurement is realized.

The utility model discloses a traffic transportation facility anti-collision device, which belongs to the technical field of traffic facilities and comprises a mounting frame, a buffer pad is arranged on one side outside the mounting frame, a first buffer spring piece is fixed on the inner side wall of the buffer pad, and a buffer plate is fixed at one end, far away from the buffer pad, of the first buffer spring piece; an anti-rolling mechanism is arranged on a traditional traffic anti-collision device, primary collision buffering protection is achieved through a first buffering spring piece and a second buffering spring piece, when the second buffering spring piece is subjected to out-of-limit collision, a guide rod is pushed outwards by the maximum stroke along a fixing plate, a lock rod is pushed away from a lock handle, and the anti-rolling mechanism is used for preventing collision. The protection rod is rotated by means of the elastic deformation effect of the volute spring until the first clamping trip shaft is blocked by the second clamping trip shaft and stops in the vertical state, the purpose of increasing the protection height above the mounting frame is achieved, anti-rolling protection is effectively conducted on a vehicle, and the protection effect of anti-collision facilities is improved.

The utility model discloses a cold and hot shock test box with an operation screen protection structure, which comprises a test box, a low-temperature box and a high-temperature box are arranged on the inner wall of the test box, the low-temperature box is communicated with the high-temperature box, a lifting frame is jointly arranged in the inner cavity of the high-temperature box and the inner cavity of the low-temperature box, a touch screen is arranged on the surface of the test box, and the touch screen is connected with the operation screen protection structure. And a carrier block is fixedly mounted on the surface of the test box through a bolt. According to the touch screen protection device, the clamping block is shifted to be separated from the second gear, the protection curtain is held and pulled to be unwound at the moment, then the protection curtain drives the rotating rod and the second shaft rod to rotate, the second shaft rod drives the second gear and the first shaft rod to rotate through the first gear, then the first shaft rod drives the coil spring to deform, and meanwhile the protection curtain shields the outer side of the touch screen; therefore, the electronic touch screen on the surface of the test box body can be shielded and protected, the situation that the electronic touch screen is damaged due to collision of foreign objects is avoided, and the purpose of protecting the electronic touch screen is improved.

The present application relates to steel drum processing equipment technical field, and disclose a kind of steel drum production pretreatment production line, production line body, the production line body includes transport table, heating furnace, cooling section, cleaning tank and blanking device;The steel drum production pretreatment production line is set using the contact component, when steel drum is transported and offset, barrel body touches drive bar, drives fixed column and transmission column rotation, volute spring torsion force storage.Transmission column is driven transmission wheel and bevel gear one rotation by belt, 90 ° direction change transmission is realized by bevel gear two, and drive rotating lever rotation.Arc-shaped sliding slot of rotating lever pushes slide bar transverse movement, drives slide plate and contact plate to extend from recess.Two groups of symmetrical contact component bidirectional synchronous force, push steel drum to center and complete deviation correction, effectively prevent steel drum offset, jam and collision, improve conveying centring, production line smoothness and subsequent process machining precision and product consistency.

The utility model discloses a hydrogen efficiency analyzer capable of improving measurement accuracy, and relates to the technical field of hydrogen efficiency analyzers, the hydrogen efficiency analyzer comprises an instrument main body, the four corners of the bottom of the instrument main body are fixedly connected with supporting legs, one side of the instrument main body is fixedly connected with a fixed block, the fixed block is internally and movably connected with a connecting piece, and the connecting piece is fixedly connected with the instrument main body. And a probe is arranged at one end of the connecting piece. By sliding the movable frame, the movable plates can be driven to rotate outwards through the connecting rods and the second rotating shafts, so that the cover body formed by the movable plates is opened, the probe can be in direct contact with air to be detected for detection, and meanwhile, after detection is completed, the movable frame is slid again, and the movable plates are pushed to rotate inwards through the connecting rods; the movable plates can be combined into the cover body again through the plurality of movable plates, and the elastic force of the second coil spring can ensure that the movable plates are tightly attached, so that the probe is protected, measurement errors caused by damage or pollution are avoided, the working efficiency is improved, and the service life of the instrument main body is prolonged.

The utility model discloses a kind of multiple type punching pipe fixing device, it is related to pipe fixing technical field.The utility model includes pipe material, and further include: fixed mechanism, the fixed mechanism is used to fix pipe material, auxiliary mechanism, the auxiliary mechanism is set in fixed mechanism front, the auxiliary mechanism is used to assist pipe material, the auxiliary mechanism includes adsorption subassembly, adsorption subassembly includes rotating plate, the rotating plate is commonly provided with two.The utility model is through setting auxiliary rod, specifically when auxiliary rod moves to the hole in pipe material top, volute spring rebound makes auxiliary rod enter pipe material interior through the hole in pipe material top, then again to electromagnet energization, so that electromagnet generates magnetic force, then again through the magnetic force generated by electromagnet to the plate piece generated when punching is adsorbed, avoid the plate piece of pipe material top punching to fall to the position of pipe material bottom punching, to make more accurate when punching pipe material.

The application relates to the technical field of textile machinery and discloses a stable knitting mechanism for fiber cooperative weaving, which comprises an inertia yarn feeding assembly and a linkage forming assembly; the inertia yarn feeding assembly comprises a motor, a central shaft, a supporting disc, an outer rotating drum, a concave sleeve disc and a volute spring; the output end of the motor is connected with the central shaft, and the supporting disc is fixedly connected on the central shaft; the concave sleeve disc is fixed at the inner sides of the two end heads of the outer rotating drum, and the supporting disc and the concave sleeve disc cooperate to rotate and support the outer rotating drum outside the central shaft. Through mechanical cooperation of the inertia yarn feeding assembly and the linkage forming assembly, the yarn breaking problem of high modulus fibers in the three-dimensional weaving process is solved; the elastic coupling structure between the central shaft and the outer rotating drum is utilized to convert the acceleration change of the driving motor into the relative rotation angle between the two, and then the rigid pulling bar is driven to retract radially through the eccentric wheel, the connecting rod and the sliding block mechanism.

The utility model relates to an adjustable rotary type electromagnet structure which comprises a shell, a coil framework is installed in the shell, a coil is wound outside the coil framework, an armature is installed in the lower portion of the coil framework, a rotating shaft is arranged on the armature, a fixing ring is installed on the top of the shell, a through hole is formed in the middle of the upper end of the fixing ring, and a through hole is formed in the middle of the lower end of the fixing ring. A through hole is formed in the outer shell, a plurality of clamping protrusions are evenly arranged at the upper end of the fixing ring around the through hole, the clamping protrusions are arranged in a circular ring shape, one end of the rotating shaft sequentially penetrates through the outer shell and the through hole and is sleeved with a volute spiral spring, clamping hooks are arranged on the outer side of the volute spiral spring, and one clamping protrusion is selected for the clamping hooks to be buckled. The adjusting mechanism is simple in structure, reliable and durable through combination of the volute spiral spring and the fixing ring, wide-range torque adjustment is achieved in a compact space, energy consumption is reduced, and energy utilization efficiency is improved.

The utility model relates to the technical field of fiber shaping, and discloses a fiber shaping device for hair product production, which is characterized in that a tensioning device, a rotating rod, a coil spring and other structures are arranged to realize elastic adjustment of tensioning force, and chemical fibers can generate a thermal expansion effect after being heated, so that the original tensioning force of the chemical fibers is changed; after the tensioning force is changed, the coil spring drives the rotating rod to rotate in the fixed cylinder through coiling force, the tensioning force of the chemical fiber is adjusted, when the tensioning force is too loose, the rotating rod is located in the fixed cylinder and rotates in the vertical direction, the chemical fiber is tensioned, and when the tensioning force is too tight, the chemical fiber jacks the position of the rotating wheel; and the rotating rod forces the interior of the fixed cylinder to rotate, the tensioning of the chemical fibers is adjusted to be in a relatively loose state, and the effect of adaptively and elastically adjusting the tensioning force is achieved.

The application relates to the technical field of water quality monitoring equipment, in particular to water quality online monitoring equipment. The coordinated action of the lifting rope, the lifting motor and the lifting angle sensor can automatically adjust the position of the detection frame according to the water source height. When the water source height changes due to rain or sunshine, the lifting angle sensor can monitor the rotating angle of the lifting cylinder in real time, accurately calculate the release length of the lifting rope, and keep the detection shell at the target detection depth. The water quality online monitoring equipment solves the problem of low detection precision caused by the fact that the existing equipment cannot determine the water source height, realizes dynamic and accurate positioning detection of water sources with different depths, and can detect the water flow direction in real time through the bottom ring, the direction angle sensor and the flow direction plate. The protection rope and the volute spring in the protection shell can stabilize the posture of the detection frame, and the direction angle sensor can feed back the flow direction data in real time, so that the water flow direction can be monitored, and the accuracy and reliability of the water quality sensor detection data can be ensured.

The utility model discloses an anti-catching device, and belongs to the field of medical instruments. An anti-grabbing device comprises a seat and a shoulder strap arranged at a backrest of the seat, and further comprises a winding roller rotationally connected in the seat, a circular groove is formed in the seat, a mounting groove is formed in the inner wall of the circular groove of the seat, the shoulder strap is wound on the surface of the winding roller, a volute spiral spring is fixedly connected in the mounting groove of the seat, and the volute spiral spring is fixedly connected in the mounting groove of the seat. A rectangular plate is slidably connected into the winding roller, a sliding groove is formed in the surface of the winding roller, the rectangular plate is slidably connected with the sliding groove of the winding roller, and a pulling plate is fixedly connected to the surface of the rectangular plate. According to the anti-grabbing device, the pulling plate is pulled outwards to drive the rectangular plate to be separated from the winding roller, the winding roller can rotate, then the shoulder strap is pulled, meanwhile, the shoulder strap can be automatically wound along with the winding roller and matched with the volute spiral spring, time is saved, and the working efficiency of a doctor for examining a patient is improved.

The utility model discloses an anti-collision storage device for artistic design samples, and belongs to the technical field of artistic design tools. Comprising a box body, a cover plate detachable from the box body, a pressing mechanism fixed between the box body and the cover plate and a plurality of blowing and rolling air bags, when the blowing and rolling air bags are not inflated, the blowing and rolling air bags are contracted to be of a vortex spring-shaped structure at the moment, bottles are placed in the box body, the cover plate is fixed to the box body, and therefore the blowing and rolling air bags are not inflated. Then, the two ends of the bottle are pressed and fixed between the box body and the cover plate through the pressing mechanism, finally, the multiple blowing and rolling air bags are inflated at the same time, so that the volute spring sections of the blowing and rolling air bags extend outwards and abut against the bottle body, at the moment, the inflated blowing and rolling air bags are supported on the bottle body, and the periphery of the bottle body can be subjected to air bag supporting; and in addition, the special-shaped bottle body can be supported in an abutting mode through the telescopic blowing and rolling air bag, and the practicability and the anti-collision effect are improved.

The utility model discloses a pencil sharpener, and one-way rotation of the user can realize automatic pencil sharpening. The power of the handle is divided, one way is through the pencil holder drive system to make the pencil holder descend at a constant speed, and the pencil is inserted into the cutting mold; the other way is through the cutter drive system to drive the blade to reciprocatingly cut along the guide slope. When the pencil holder descends to the predetermined position, the volute spring triggers the reset, the pencil holder is lifted, and the cutting mold rotates 90 DEG to switch the cutting surface. The pencil sharpener precisely matches the cutting amount through the lead screw lead and the handle circle number, realizes automatic reset and surface switching through the transmission mechanism, and does not need manual intervention. It can precisely cut out specific shapes such as flat head eyebrow pencils, is simple and easy to operate, avoids pencil dust splashing and blade injury through the anti-overflow cover design, and has high efficiency and safety.

A new soft capsule extrusion threshing device, including support and its rotation setting extrusion roller and pull skin roller, extrusion roller and pull skin roller axis horizontal, and left and right gap opposite setting, wherein pull skin roller through compensator transmission connection has drive motor, with soft capsule rubber can in turn bypass extrusion roller downside and pull skin roller upside, and under the action of pull skin roller, through extrusion roller soft capsule is down and off rubber, compensator includes coaxial setting first connecting shaft and second connecting shaft, wherein second connecting shaft one end is equipped with cylindrical groove, first connecting shaft outer diameter is less than cylindrical groove inner diameter, its one end stretches to cylindrical groove, and between outer ring and cylindrical groove inner wall is equipped with volute spring, drive motor transmission shaft and pull skin roller are respectively connected with second connecting shaft and first connecting shaft end away from each other, prevent pull skin roller's rotation and make rubber can under the action of pull skin roller better with extrusion roller adhere, further guarantee the threshing effect.

The utility model relates to a quick-freezing cabinet, in particular to a food mechanical quick-freezing cabinet which comprises a refrigeration assembly, a quick-freezing assembly is fixed to the top of the refrigeration assembly, a containing assembly is connected into the quick-freezing assembly in a sliding mode, a blocking assembly is fixed into the quick-freezing assembly and comprises a storage frame, and the storage frame is fixed into the quick-freezing assembly. A rotating shaft is rotationally connected into the storage frame, a coil spring is arranged on one side of the rotating shaft, blocking cloth is fixed to one side of the rotating shaft, a limiting strip is fixed to the end of the blocking cloth, a magnet is fixed to one side of the limiting strip, the refrigeration assembly comprises a refrigeration box, supporting legs are fixed to the bottom of the refrigeration box, and an air dispersing plate is fixed into the refrigeration box. According to the food quick-freezing box, the inside of the quick-freezing box is divided into a plurality of areas through the arrangement of the blocking cloth, so that when food is placed in the quick-freezing box, cold air can flow out to a large extent only in the placing areas, the quick-freezing effect of other areas cannot be affected, and the food can be placed and taken more conveniently by utilizing the mode that the placing box can be pulled out.

The utility model discloses an insulin injection storage device, which comprises a box body, a hinge arranged on one side of the box body, a box cover arranged on one side of the hinge, a fixing block and a supporting block fixedly connected to the inner wall of the box body, a first fixing shaft fixedly connected to the top of the fixing block, and a first volute spring sleeved on the outer wall of the first fixing shaft. The device facilitates quick clamping and positioning of the pen barrel part, thereby improving the stability of the insulin injection pen during storage, preventing the syringe from shaking and being damaged, effectively improving the convenience during use, facilitating clamping and positioning of the pen sleeve part, further improving the convenience during storage, and facilitating rotation of the pen sleeve part, so that the pen sleeve does not need to be positioned when the injection pen is taken, thereby preventing the pen sleeve from falling, being damaged, or being lost.

The utility model relates to the technical field of ozone deodorization equipment, in particular to an ozone deodorization control device with a self-adaptive timing function. According to the technical scheme, the winding device comprises a device body, one side of the device body is rotationally connected with a winding disc, a springing groove is formed in the center of the side, close to the device body, of the winding disc, a spiral spring is arranged in the springing groove, and the end, close to the outside, of the spiral spring is fixedly connected into the springing groove; a supporting shaft is fixedly connected to the position, close to the center, of the spiral spring. According to the utility model, the end part of the wire harness can be limited by adopting the placing groove, the elastic force of the spiral spring in the springing groove can drive the winding disc to rotate to wind the wire harness outside the winding disc, and the pushing spring pushes the deviation rectifying wheel to be close to the outside of the wire harness, so that the deviation rectifying wheel rectifies the deviation of the wire harness; the problem that the wire harnesses are not convenient to sort in the next use due to the fact that the wire harnesses are independently stored in the box and are wound due to shaking of the box in the past is solved, and the convenience of taking the wire harnesses is improved.

The utility model relates to water tank technical field discloses built -in full exposure triangular section no water tank of reinforcing bar, including uniform stiffener in the four -corner of water tank body, built -in triangular frame, cleaning assembly is by mounting panel, float, counterweight, cleaning plate and linkage mechanism and is composed, utilizes water level fluctuation energy drive cleaning assembly: float is dragged by buoyancy and pulls the line and promotes mounting panel, drives cleaning plate and goes up along the inner wall of triangular frame, and the dirt is scraped and is carried by water flow and is discharged, counterweight falls back because of gravity and pulls mounting panel, and cleaning plate goes down and removes the residual water film of newly exposed wall surface, and float and counterweight form dynamic balance system, make cleaning assembly do reciprocating linear motion with every liquid level change, and cleaning plate realizes self -adaptation and sticks with the help of the volute spring and ball structure in the guide frame, and the elastic force of volute spring precompression makes cleaning plate always press tightly wall surface, and ensures effective cleaning pressure, and the design does not need external power, and can drive only relying on water body natural fluctuation.

The present application relates to a kind of multilayer constant force scroll spring and its production process, including several coil springs;Several described coil springs are successively stacked and are refuted into shape, and the two ends of coil spring are fixed respectively.The beneficial effects of the present application are that:1.thin single-layer coil spring is stacked after forming the constant force scroll spring with consistent bending radius, compared with directly using thicker spring, the forming method of the present application can make the scroll spring curl to small volume more, to realize the increase of its torsion in the case of not increasing or increasing less scroll spring volume, meet the industrial needs;2.the torsion of multiple times after stacking can be obtained after the two ends of single-layer coil spring with consistent inner diameter are fixed respectively, meet the requirement of increasing torsion.

The utility model discloses a bearing with bearing seat, including base, the top of base rotatoryly provided with the top seat, the downside of base front end and rear end all is provided with the bottom plate, the top seat front end is provided with two groups of first seat, two groups first seat all are provided with the clamping hook, the base front end is provided with two groups of second seat, two groups second seat all rotatoryly provided with the wrench, every group second seat with every group wrench all is provided with the volute spring, two groups wrench all rotatoryly provided with the pendant, two groups pendant respectively with two groups clamping hook cooperation clamping, adopt the base and the top seat cooperation to the bearing body clamping fixed mode, be applicable to the industrial scene of frequently replacing bearing body, and through two groups first seat, two groups clamping hook, two groups second seat, two groups volute spring, two groups volute spring and two groups pendant cooperation can realize quick locking and release, thereby facilitate to the bearing body and dismouting.

The invention discloses an automatic flow regulation type microminiature thermal control pump valve device which is characterized in that four flange plunger interfaces are communicated with a working medium subjected to heat exchange in external equipment, and the four flange plunger interfaces are respectively a cold end interface, a cold end return interface, a hot end interface and a hot end return interface; the hot end is connected with the inlet end of the filter element body through a pipeline system; the filling core body is connected with the inlet end of the filter core body; the outlet end of the filter core body is connected with the cavity and the constant-speed pump core body; the electric connector supplies power to the constant-speed pump core body and drives the constant-speed pump core body to rotate; the bimetal volute spring driving unit is arranged in the cavity; the cavity communicates with the cold end, the hot end and the cold end; a working medium entering from a hot end flows to the directional pump core body after being filtered by the filter core body, and then enters the cavity after being electrified, rotated and pressurized by the directional pump core body; and the bimetallic volute spring driving unit is used for adjusting the flow distribution of the working medium flowing to the cold end and the hot end in the cavity in real time according to the temperature change of the working medium.

The utility model belongs to the technical field of safety fencing nets, and particularly relates to an easily-folded safety fencing net which comprises a fixing column, the fixing column is in a hollow cylindrical shape, a vertical rolling rod is rotationally arranged in the center of an inner cavity of the fixing column, and a fencing net body is arranged on a rod body of the rolling rod in a rolling mode. The rod body of the winding rod is fixed to the end, close to the center of the flat spiral spring, of the flat spiral spring. When the surrounding net body needs to be wound, two modes can be adopted, in the first mode, after the adjusting rod is detached, the speed reduction servo motor is started to drive the worm gear to rotate in the reverse direction, and therefore the winding rod slowly rotates in the reverse direction, and the surrounding net body is wound; according to the second mode, after the adjusting rod is detached, then the pull ring is pulled, the spline rod is pulled out of the spline groove, at the moment, the winding rod is not limited by the spline rod any more, the plane volute spring releases the torsion borne by the plane volute spring, and therefore the winding rod rotates reversely fast, the surrounding net body is wound, and a user selects the winding rod according to the requirement by himself / herself.

The utility model relates to the technical field of bicycle refitted lamps, in particular to a multifunctional bicycle refitted lamp which comprises an outer shell and a lampshade, an electric lamp mechanism is arranged on the outer shell and used for lighting, a protection mechanism is arranged on the outer shell and comprises a rotating shell, the rotating shell is hinged to the outer shell, and the lampshade is arranged on the rotating shell. A volute spiral spring is arranged between the rotating shell and the outer shell, one end of the volute spiral spring is fixedly connected to the rotating shell, the other end of the volute spiral spring is fixedly connected to the outer shell, a fixing buckle is arranged on the outer shell, and a movable clamping buckle is arranged on the rotating shell. By arranging the protection mechanism and arranging the annular air bag sleeve with elasticity and buffering functions at the clamping part, when a vehicle falls down or collides, the air bag sleeve can buffer and absorb impact force, the impact force is prevented from being directly transmitted to the lamp body and the connecting part, the lampshade and the shell are effectively prevented from being damaged, and the service life of the lamp is prolonged. And the impact resistance and durability of the whole lamp assembly are improved.

The utility model relates to a kind of volute springs, it includes spring body, and the both ends of spring body are respectively bent with inner connecting plate and outer connecting plate, and mounting hole is opened on inner connecting plate, and connecting hole is opened on outer connecting plate, and there is storage rope in connecting hole, storage rope is sleeved on the circumferential wall of the outermost side of spring body, and the both ends of storage rope are fixed respectively by first fixed component and second fixed component with outer connecting plate.The application technical scheme is bound hoop storage by storage rope to spring body, limit spring body to open and increase packing space, save the packaging, transportation cost of volute spring, and it is convenient to operate.