38results about How to "Adjust the length" patented technology

The invention discloses a DCS algorithm-based satellite-borne video SAR (synthetic aperture radar) imaging processing method. The method includes the following steps that: 1, satellite-borne SAR beam bunching mode echo simulation data and corresponding parameters are read; 2, Doppler bandwidth and synthetic aperture time required by frame images are determined; 3, a data partitioning mode is determined, and data are partitioned; 4, de-sloping processing is performed on frame segment data in an azimuth direction; 5, signals obtained after the de-sloping processing are subjected to azimuth-direction Fourier transform, multiplied by an CS factor, subjected to range-direction Fourier transform, and multiplied by a range-direction compensation factor sequentially; 6, the phase difference between the center slope distance of each frame of data and the center slope distance of the entire echo data is compensated; 7, range-direction Fourier transform, azimuth-direction compensation processing, azimuth-direction inverse Fourier transform are performed, so that an imaging result can be obtained; 8, step 4 to step 7 are repeated, so that all frame images can be obtained; and a video SAR product can be obtained. With the DCS algorithm-based satellite-borne video SAR imaging processing method of the invention adopted, the resolutions of the frame images can be consistent.

A suspension-type gravitational-equilibrium stair climbing vehicle with movable gravity center comprises three parts: a travelling part consisting of pieces such as a frame, a front wheel, a rear wheel, a crawler belt and a crawler belt forward-falling preventing device; a gravitational equilibrium part consisting of pieces such as a suspending hanging bracket, a sliding sleeve and a battery and self weight of a person; and a seat moving part consisting of pieces such as a sliding seat, a sliding bar and a connection rod. The suspension-type gravitational-equilibrium stair climbing vehicle with movable gravity center has the advantages that in the processes of facing the front to go upstairs and go downstairs, the suspending hanging bracket is mounted in a center hole of the frame, and gravity is utilized to equilibrate. An angle formed in the processes of going upstairs and going downstairs is utilized to pull an eccentric shaft on the frame, the eccentric shaft is connected with one end of the connection rod, the other end of the connection rod pulls the seat on the sliding bar, and the gravity center is moved forwards in the process of going upstairs and is moved backwards in the process of going downstairs to keep the gravity center of the seat being at the center of the vehicle. The suspension type stair climbing vehicle is simple in structure, low in cost, small in turning radius and capable of being controlled via remote control and programs and rotating by 360 degrees in situ. By the aid of the suspension type stair climbing vehicle, the problem that part of riders need companies is solved, and a company can go together by means of operating on an auxiliary seat. In addition, a vehicular basket can carry goods.

The invention discloses a convenient-to-maintain large-capacity quick-opening reaction kettle. The convenient-to-maintain large-capacity quick-opening reaction kettle comprises a kettle body, a kettle cover and a rotary shaft, wherein the rotary shaft is internally provided with a stirring shaft; a plurality of storage grooves are formed in a side wall of the stirring shaft; the stirring shaft is in rotary connection with stirring rods at the storage grooves; trapezoid holes are formed among inner cavities of the storage grooves and the stirring shaft; a push-pull rod is in sliding connection with the inside of the stirring shaft through a plurality of linear bearings; the upper end of the push-pull rod stretches out of the stirring shaft and is fixedly connected with a push baffle plate; the push-pull rod is in rotary connection with connecting rods with the quantity the same as that of the stirring rods; the other ends of the connecting rods are in rotary connection with the stirring rods; the upper end of the side wall of the stirring shaft is further fixedly connected with a transmission plate; a fastening screw disc also sleeves the stirring shaft between the transmission plate and the push baffle plate. According to the convenient-to-maintain large-capacity quick-opening reaction kettle, the stirring shaft can be directly pulled out, so that replacement and maintenance are convenient to carry out; meanwhile, the stirring shaft is not stopped by the kettle body and convenient-to-open hinge type connection can be adopted; the volume of the kettle body can be improved and the capacity is increased.

The invention discloses an anti-dust round comb. The anti-dust round comb comprises a comb body and a comb handle. The comb body comprises a first comb body and a second comb body. The first comb body is provided with soft comb teeth, and the comb teeth are provided with massage particles, wherein the diameters of the comb teeth are larger than those of the massage particles. The second comb body is arranged outside the first comb body in a sleeved mode, and is provided with a plurality of third through holes, wherein the diameters of the third through holes are larger than those of the comb teeth and smaller than those of the massage particles. The comb handle penetrates through the end surface of the second comb body and is connected with the first comb body. After the comb is used, mutual motions of the first comb body and the second comb body can ensure that the comb teeth retract into gaps between the first comb body and the second comb body, and the third through holes are blocked by the massage particles to prevent dust from entering and protect the comb teeth from being polluted by the dust, and the angles of the comb teeth and the lengths of the comb teeth can be adjusted.

The invention discloses a power distribution cabinet based on a cable fixing and adjusting structure, which mainly solves the problem in the prior art that a cable cannot be stably connected with a connection part inside a power distribution cabinet during the cable wiring operation. The power distribution cabinet comprises a power distribution cabinet body and an anti-pulling piece. The anti-pulling piece comprises a baffle plate fixed on the power distribution cabinet body and provided with a first cable through hole, a fixing part provided with a second cable through hole, a spring with the two ends thereof respectively connected with the baffle plate and the fixing part, and a cable fixing and adjusting structure arranged above the second cable through hole. The cable fixing and adjusting structure is of a conical structure. The diameter of the cable fixing and adjusting structure is gradually reduced along the central axis towards the direction of the fixing part. The central connecting line between the first cable through hole and the second cable through hole is on the same straight line with the central axis of the spring. The power distribution cabinet is stable in connection effect and the influence of the cable wiring operation on the connection part thereof is effectively avoided.

The invention relates to an Internet-of-Things-based intelligent mask with an air purifying function. The intelligent mask comprises a main body and four connecting bands, and further comprises a purifying mechanism, a center control mechanism and two adjusting mechanisms. The purifying mechanism comprises a first sleeve, a purifying assembly, a cleaning assembly and two clamping assemblies. Eachadjusting mechanism comprises a shell, a motor and a roller. According to the Internet-of-Things-based intelligent mask with the air purifying function, the replacement convenience of a filter elementis improved through the purifying mechanism so that the intelligent mask can be cyclically used. Moreover, the filter element can be cleaned in the working process of the filter element so that the filter element can be kept clean, the air purifying effect of the intelligent mask is improved, and the practicality of the intelligent mask is improved. The length of the connecting bands can be adjusted through the adjusting mechanisms so that the tightness of the intelligent mask worn by people. Thus, the comfort degree of people wearing the intelligent mask is improved.

The invention discloses an adjustable propaganda display rack which comprises a telescopic display plate. Display rack supporting rods are connected to two sides of the telescopic display plate, the lower portion of the telescopic display plate is connected with a lower cross plate, the front side of the telescopic display plate is provided with rectangular soft glass connected with the lower cross plate, the lower portions of the display rack supporting rods are connected with display rack fixing bases, electric telescopic push rods are connected onto the display rack supporting rods, telescopic ends of the electric telescopic push rods are connected with a display rack upper fixing cover fixedly connected with a telescopic end of the telescopic display plate, the front side of the telescopic display plate is provided with a rotary illumination lamp fixedly connected with the display rack upper fixing cover, and one side of the display rack supporting rods is provided with an automatic light source adjusting mechanism electrically connected with the rotary illumination lamp. The length of the propaganda display rack can be adjusted, propaganda advertising boards with different sizes can be selected and displayed, the attention of audience can be attracted by light effects through the adjustable illumination lamp, good propaganda effects are achieved, the brightness can be adjusted as required, and the adjustable propaganda display rack has more usability.

The invention discloses a comfortable bedside device with a backrest, and mainly solves the problem that the comfort degree of a conventional bedside device cannot meet the requirement. The comfortable bedside device comprises a bedside body (1), and is characterized in that the backrest (2) is arranged on the bedside body (1); the top end of the backrest (2) is fixed at the top end of the bedside body (1); supporting rods (3) are arranged at the back of the backrest (2); one end of each supporting rod (3) is hinged to the back of the backrest (2). The comfortable bedside device has the advantages of being capable of improving the resting quality, simple in structure and the like.

The invention relates to a pair of pseudomyopia correction glasses which comprises a glasses bracket (1) consisting of two glasses frames (2) and glasses legs (4). Insert grooves (2a) are formed in the glasses frames (2), correction eyeglasses (3) are inserted and connected in the insert grooves (2a), motors (7) and power supplies (8) connected through supporting plates (6) are arranged on two sides of the glasses bracket (1) and are connected electrically, a rotary shaft (10) is connected to the output shaft of each of the motors (7), the rotary shafts (10) are connected with front visual charts (13) through connecting rods (12), and the front visual charts (13) are correspondingly matched with the corresponding glasses frames (2). The pair of pseudomyopia correction glasses further comprises a rear visual chart (14), and the rear visual chart (14) is correspondingly matched with the glasses bracket (1) in used. The pair of pseudomyopia correction glasses has the advantages that a physical method is adopted for correction, has the good correction effect on pseudomyopia of adolescents, does not harm eyes and is safe and reliable.

The invention relates to the technical field of surveying and mapping instruments, in particular to a balancing and stabilizing mechanism for a geological surveying and mapping instrument. The balancing and stabilizing mechanism for a geological surveying and mapping instrument comprises a connecting seat; the connecting seat is internally provided with a power cavity; a fixing column is arrangedon the lower surface of the connecting seat; the fixing column is internally provided with a lifting cavity connected with the power cavity; the lifting cavity is internally provided with a screw rod;the power cavity is internally provided with an adjusting mechanism for driving the screw rod to rotate; the screw rod is sleeved with a lifting block in threaded match; the lower surface of the lifting block is symmetrically provided with one ends of connecting rods; the other ends of the connecting rods pass out of the lower surface of the fixing column to be connected with a first spike block;the annular surface of the fixing column is provided with multiple storage grooves; the inner upper side of each storage groove is hinged with one end of a buckled telescopic plate; and the other endof the telescopic plate is fixedly connected with a second spike block. On one hand, the problems of imperfect functions of the existing single-foot support and the triangular support can be solved,and on the other hand, the problems that the existing single-foot support and the triangular support are hard in height adjustment, large in size and inconvenient to carry can be solved.

The invention belongs to the technical field of underground foundation pit engineering, and particularly relates to a fabricated type concrete-filled steel tube supporting system and a construction method thereof. The system comprises an enclosure structure and a fabricated type concrete-filled steel tube support; a top beam is arranged at the top of the enclosure structure; the fabricated type concrete-filled steel tube support is supported between two opposite sides of the top beam; the fabricated type concrete-filled steel tube support is formed by splicing a plurality of concrete-filled steel tube support prefabricated parts; supporting assemblies are arranged in the top beam; and the two ends of the fabricated type concrete-filled steel tube support are connected with the supporting assemblies on two sides through extensible connecting pieces respectively. The fabricated type concrete-filled steel tube support adopted in the supporting system is formed by splicing the multiple concrete-filled steel tube support prefabricated parts, the fabricated type concrete-filled steel tube support is detachably connected with the supporting assemblies in the top beam through the extensible connecting pieces, assembling and disassembling are convenient, and recycling of components is convenient; and the length of the end joint can be adjusted by the extensible connecting pieces.

The invention relates to the technical field of colloidal particle production systems, and in particular, discloses a full-automatic stripping, cooling, blow-drying and pelletizing production line. The production line comprises a stripping mechanism, a cooling mechanism, a blow-drying mechanism and a pelletizer; the pelletizer is provided with a driving module and a pelletizing module; the drivingmodule comprises a first motor, and a rotating wheel rotationally arranged; the pelletizing module comprises a second motor, and a hobbing cutter rotationally arranged; the stripping mechanism conveys strips extruded by an extruder; the cooling mechanism uses cooling liquid for cooling the strips; the blow-drying mechanism uses flowing air for blow-drying of the cooled strips; the driving moduleconveys the dried strips to the pelletizing module; the pelletizing module cuts the strips as particles to greatly improve the particle production efficiency; and the first motor and the second motorare used for controlling the rotating speeds of the rotating wheel and the hobbing cutter. Compared with one motor synchronously driving the stripping module and the pelletizing module in the prior art, the production line is convenient to control the lengths of the particles cut from the strips.

The invention discloses a telescopic toothbrush with a timing function. The toothbrush comprises a timing box, a timing cavity is formed in the timing box, a reset box is mounted in the timing cavity in a rotating-fit mode, a ratchet wheel cavity is formed in the reset box, a reversing cavity is formed at the left side of the ratchet wheel cavity, and a timing main rod penetrating through the ratchet wheel cavity is mounted between the reversing cavity and the right end face of the reset box in a rotating-fit mode. Energy is stored for a spring in a timing mechanism, the energy is released through the spring so as to set tooth brushing time, and long time or short time of tooth brushing is prevented; the length of the toothbrush can be adjusted by rotating a threaded main block in a telescopic mechanism, and thus the requirements for toothbrushes of more people are met.

The invention relates to a smashing device, in particular to a forage smashing device for animal husbandry. The forage smashing device for the animal husbandry can adjust the smashing length of forage, can remove dust from the forage and can bring convenience to mixing with other feed. According to the scheme, the forage smashing device for the animal husbandry comprises a bottom plate, supportinglegs, a transverse plate, a gear device, a feeding device, inclined plates, long legs, transverse rods and the like; and the supporting legs, the inclined plates, the long legs, second supporting rods and short rods are fixedly installed on the bottom plate, wherein the two supporting legs are symmetrically arranged, the two inclined plates are symmetrically arranged, the two long legs are symmetrically arranged, the two second supporting rods are symmetrically arranged, the two short rods are symmetrically arranged, and the transverse plate is fixedly connected to the supporting legs. According to the forage smashing device, the gear device and the feeding device are additionally arranged, the gear device plays a good role in controlling the feeding device, and the feeding device achieves the purpose of supplying materials to a cutting device.

The invention discloses a water bottle with an adjustable volume. The water bottle comprises a cup lid, a cup bottom, a cup opening and a cup body; the cup lid and the cup bottom are arranged at the upper end and the lower end of the cup body respectively, the cup body comprises first foldable faces which face outwards aslant and second foldable faces which face inwards aslant, the first foldablefaces are flexibly connected with the second foldable faces, and the inner walls of the first foldable faces and the second foldable faces are coated with aluminum foil membrane layers. According to the water bottle with the adjustable volume, the cup body formed by several first foldable faces and second foldable faces can be stretched and folded up and down, and when the water bottom is not needed, the water bottle is folded to the shortest extent to be convenient to carry; when the water bottle is needed, the length of the cup body is adjusted according to the volume of to-be-accommodated water.

The invention provides an electrician climber with high safety performance, and relates to the technical field of electrician machinery. The electrician climber with high safety performance comprisesa pedal plate, a telescopic buckle is welded to one side of the pedal plate, a first telescopic rod is inserted into the telescopic buckle, a plurality of clamping racks are arranged on the side, close to the pedal plate, of the first telescopic rod, a clamping block is welded to one side of the inner wall of the telescopic buckle, and the clamping block and the clamping racks are meshed with eachother. The invention discloses the electrician climber with high safety performance, the first telescopic rod is matched with the clamping racks on one side through the clamping block in a telescopicbuckle, the length of the first telescopic rod can be adjusted freely, meanwhile, the electrician climber can better adapt to telegraph poles of different types, the safety of an electrician climbingthe telegraph pole is improved, through cooperation of an arc-shaped rod, a groove, a first rubber pad and a second rubber pad, the telegraph pole can be clamped, the friction effect can be improved,and the safety performance of the electrician climber is improved.

The invention relates to the technical field of agricultural devices, in particular to a soil loosening depth adjusting device of a subsoiler for agricultural machinery. A technical problem to be solved is as follows: an existing device is difficult to adjust a soil loosening depth, coulters need to be replaced, most of parts of adjustable devices can only be integrally adjusted, a single adjustment is difficult, distances between the coulters are inconvenient to adjust, and a soil loosening effect is influenced. In order to solve the technical problem, the invention provides the soil loosening depth adjusting device of the subsoiler for the agricultural machinery. The soil loosening depth adjusting device of the subsoiler for the agricultural machinery consists of soil loosening mechanisms and adjusting mechanisms, and can conveniently adjust lengths of plough arms, so that a soil loosening depth of the device is adjusted according to actual soil loosening requirements, an integrated adjustment or a separate adjustment of single and multiple coulters according to different needs is selected, an adjustment is more comprehensive, the distances between the coulter arms can be conveniently adjusted according to different soil environments, and therefore a good soil loosening effect can be achieved for different soil textures.

The invention discloses a foldable valve handle system capable of adjusting torque. The foldable valve handle system comprises a wheel disc and wheel disc handles, wherein three grooves are formed in the outer side of the wheel disc in an annular array; the wheel disc handles are arranged in the grooves; a square hole is formed in the middle of the wheel disc; a valve stem clamping sleeve is mounted in the square hole; strip-shaped grooves are formed in the wheel disc handles; folding handles are arranged in the strip-shaped grooves; and the folding handles are hinged to the strip-shaped grooves. The folding handles are arranged on the wheel disc handles, and the lengths of the wheel disc handles can be adjusted, so that the torque can be reduced. A universal valve stem clamping sleeve mounting hole is formed in the wheel disc, and the valve stem clamping sleeve can be replaced according to different valve stem shapes and sizes, so that resources can be saved. The taper is designed on the valve stem clamping sleeve mounting hole in the wheel disc, clamping is facilitated and dropping is prevented. The grooves are formed in the wheel disc, the wheel disc handles can be folded, so that the foldable valve handle system is adaptive to operation in a narrow space, and storage is facilitated. The three grooves are formed in the wheel disc, and the wheel disc handle(s) can be arranged in one groove, two grooves or three grooves, so that the fitness to operation space can be further improved.

The invention discloses portable environment-friendly chopsticks. Each chopstick comprises a chopstick body (1), a chopstick head (2), and a clamping and baffle part (3) fixedly connected with the tail end of the chopstick head (2), wherein a strip-shaped opening is formed in the axial direction of the chopstick body (1), the clamping and baffle part (3) can slide along the strip-shaped opening, awave-shaped convex bar (4) is arranged in the axial direction of the inner wall of the cavity of the chopstick body (1), a bulge (31) matched with concave parts (41) of the wave-shaped convex bar (4)is arranged on the clamping and baffle part (3) or the tail end of the chopstick head (2), and when axial force is applied to the clamping and baffle part (3), the bulge (31) can move between the adjacent concave parts (41) of the wave-shaped convex bar (4). The portable environment-friendly chopsticks can be conveniently carried when a user goes out for dining, and meanwhile, the length of the chopsticks can be adjusted according to personal preference.

The invention relates to a telescope type double-end toothbrush, and belongs to the technical field of articles of daily use. The telescope type double-end toothbrush comprises a brush handle, a left brush head and a right brush head, wherein the left brush head and the right brush head are arranged at the two ends of the brush handle respectively. The telescope type double-end toothbrush is characterized in that the brush handle is formed by connecting a left brush handle and a right brush handle in a threaded mode; a threaded hole is formed in the connecting position of the left brush handle and the right brush handle; a threaded column matched with the threaded hole is arranged at the connecting position of the right brush handle and left brush handle; and the left brush handle and the right brush handle are connected through the threaded hole and the threaded column. The telescope type double-end toothbrush is simple and reasonable in structure and easy to produce and manufacture, can conveniently adjust the length of the brush handle, has two purposes, and has the wide market space.

The invention discloses a medical treatment adjustable operation hook dragging device, which is characterized by comprising a pull handle 1, a pull arm 2, a hanging hook 3, a pipe sleeve 4, two hinged pull hook frames 5 and pull hook plates 6 on the pull hook frame; the medical treatment adjustable operation hook dragging device is characterized in that the side face of the hanging hook 3 is fixedly provided with the pipe sleeve 4; during the orthopedic surgery, the handle 1 is held by hands, the hanging hook 3 pulls open the operation wound, and a drainage tube and other tubular facilities are plugged in the pipe sleeve 4; the pull hook frames are integrally connected with the handle and a positioning rack on the handle; the pull hook plates are replaceable and moveably sleeved on the pull hook frame; a cross positioning tooth matched with a cross positioning tooth on the front end of the pull hook adjuster is arranged on the pull hook piece. The medical treatment adjustable operation hook dragging device is simple in structure and convenient to use; the angle, length, force and others of the pull hook can be adjusted; moreover, the pull hook piece can be conveniently replaced, thereby guaranteeing the operation effect.

The invention discloses a novel packing paper mechanism. The mechanism comprises a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate areconnected through a third supporting plate and a fifth supporting plate, the left side of the first supporting plate is also fixedly connected with a fourth supporting plate which is connected with aswing rotating arm through a bearing and a rotating shaft, meanwhile, the left side of the swing rotating arm is connected with a first rotating gear through a driving connecting rod, and the inner surface of the fifth supporting plate is connected with the driving connecting rod through a camshaft. The novel packing paper mechanism is provided with a front paper feeding mechanism, a vacuum suction head, the swing rotating arm, the first rotating gear, a vacuum paper suction unit, a front pushing paper suction structure, front and rear moving rods, a second rotating gear, a paper passing wheel, a paper clip, front and rear moving blocks, a rocker arm driving rod and the driving connecting rod, so that the purposes of using a single type of packing paper material, conducting simple management, reducing inventory, reducing the cost, accurately positioning the packing paper and improving the product performance are achieved.

The present invention discloses a vibrating manual embroidery pen. The vibrating manual embroidery pen comprises a manual embroidery pen body and the manual embroidery pen body comprises a needle piece clamping mechanism and a driving mechanism; the driving mechanism comprises a lower sleeve and a driving motor, the driving motor is arranged inside the lower sleeve, and besides, an output end of the driving motor is fixedly connected with an eccentric mechanism; and the needle piece clamping mechanism comprises an upper sleeve fixedly arranged on a top part of the lower sleeve and a needle piece clamping head arranged inside the upper sleeve, and the eccentric mechanism is fixedly connected with an embroidery needle through a vertical shaft. The driving motor is added inside a pen rod based on traditional manual embroidery pens, besides the already adjusted vertical shaft is arranged at the output end of the driving motor, length of the embroidery needle arranged on the pen rod can bebetter adjusted, thus during working of the embroidery needle, depth and strength of embroidering practice skin or real human skin are kept uniform, and the vibrating manual embroidery pen improves acoloring effect while effectively alleviates inconvenience of user's long-term operation and hand fatigue.

The invention belongs to the technical field of medical instruments, and particularly discloses an operation auxiliary device for gastrointestinal surgery. The operation auxiliary device comprises a shell operation auxiliary device body, a mounting table, a main connecting movable column, an auxiliary retractor and a bearing table, wherein the mounting table is fixedly connected to the top of the shell operation auxiliary device body, the peripheral outer wall of the bottom of the mounting table is connected with the peripheral outer wall of the shell operation auxiliary device body, and the main connecting movable column is connected to the middle of the bottom end of the mounting table in an embedded mode. By means of the main connecting movable column, medical staff can adjust and use the device conveniently, and the flexibility of the device is embodied; the auxiliary retractor has the advantages of being good in stabilizing effect, high in flexibility degree and the like and is controlled to be used through a main control table and a control console, and operation of the medical staff is convenient; by means of the bearing table, the medical staff can conveniently place medicines and take the medicines during use; and a shadowless lamp achieves the effect of assisting the medical staff in operation, meanwhile, the situation that a large shadow is generated due to the fact that the hands of the medical staff block a light source is avoided, and therefore, the device has a wide development prospect in the future.

The invention discloses a special novel motorcycle front-mounted damping device. The device comprises an upper fixing block, a piston rod is fixedly connected to the bottom of the upper fixing block,a piston is fixedly connected to the end, far away from the upper fixing block, of the piston rod, the piston is connected with a first sleeve in a sliding mode, a sealing ring is fixedly connected tothe inner wall of the end, close to the piston rod, of the first sleeve, the piston rod is in sliding connection with the sealing ring, the side, far away from the piston rod, of the piston is connected with a first spring, the end, far away from the upper fixing block, of the piston rod is inserted into the first sleeve, the inner wall of the first sleeve is in sliding connection with the firstspring, the end, far away from the piston rod, of the first sleeve is in threaded connection with a second sleeve, the inner wall of the second sleeve is in sliding connecting with a second spring, and the end, far away from the first sleeve, of the second sleeve is in threaded connection with a third sleeve. According to the device, the length and the elasticity of the device can be automaticallyadjusted, the structure is simple, the universality is high, and the production cost is low.

The invention discloses a chain spanner which is characterized in that a hook is arranged at one end of a handle, and the inside of the hook is connected to a fastening chain. The chain spanner is used for installation and removal of plastic pipes or valves, the length of the fastening chain can be flexibly regulated according to sizes of the valves to be installed or removed, and damages on plastic pipes and the valves can be avoided.

The invention discloses a hydraulically-driven automatic filter element cutter which comprises a base and slide tracks, wherein a pair of slide tracks is mounted at the upper end of the base; front brackets are mounted at the front ends of the slide tracks; a cutter air cylinder is fixedly mounted on the side edges of the front brackets; the piston end of the cutter air cylinder is connected with an extension rod of which the front end is equipped with a cutter head; a front receiving groove fixing runner is mounted at the upper ends of the front brackets; rear brackets are mounted at the rear ends of the slide tracks in a sliding manner; a rear receiving groove fixing runner is mounted at the upper ends of the rear brackets; a runner is mounted in a filter element receiving groove which penetrates the front and rear receiving groove fixing runners; a rotating cylinder is arranged at the position above the rear end of the base and is connected to the end part of the filter element receiving groove; a fixing plate is arranged in the middle of the base and is provided with a hydraulic ram at the side edge; an extended connecting rod is fixed at the rear end of the base, and a top plate is fixedly mounted at the front ends of the rear brackets and is sleeved on the connecting rod; and the piston end of the hydraulic ram is propped against the top plate. Based on the automatic cutter home and abroad, through continual trial and innovation, with the adjustability of a pneumatic element, the difficult problems that the cutter is fed slowly and withdrawn quickly are solved, and the end surfaces of the cut filter element are flat and smooth, which meets the requirements of customers.

The invention discloses a membrane splitting pair for manufacturing PTFE fibers. The membrane splitting pair comprises two membrane splitting rollers, and the membrane splitting rollers comprise the upper membrane splitting roller and the lower membrane splitting roller which are used in a vertically cooperative mode; a PTFE membrane is arranged between the upper membrane splitting roller and the lower membrane splitting roller; each membrane splitting roller is uniformly and circumferentially provided with a plurality of thorns, the thorns on the upper membrane splitting roller and the thorns on the lower membrane splitting roller are arranged in a staggered mode, and each membrane splitting roller comprises a cavity which is arranged in the middle of the membrane splitting roller and used for being connected with a rotating shaft and a fixed key arranged on one side of the cavity. According to the membrane splitting pair, the structure is simple, use is convenient, the machining efficiency is high, and the PTFE membrane is split into the fibers through cooperation of the upper membrane splitting roller and the lower membrane splitting roller; the thorns on the upper membrane splitting roller and the thorns on the lower membrane splitting roller are arranged in the staggered mode, and therefore the phenomenon that the thorns are broken is prevented.

The invention discloses an adjusting clamp connected with a rope belt and a mask with the adjusting clamp, the adjusting clamp comprises a first clamping plate and a second clamping plate which are rotatably connected with each other, and the adjusting clamp further comprises a connecting mechanism which can be connected with the first clamping plate and the second clamping plate to clamp the ropebelt; a through hole is formed in the first clamping plate, and a rope belt needing to be connected penetrates into the through hole; a plurality of first step units are arranged on the first clamping plate and are respectively arranged in the penetrating direction of each rope belt; a plurality of inverted teeth are arranged on the steps of the first step unit, and the tooth tips of the invertedteeth face the penetrating direction of the rope belt; and a plurality of second step units are arranged on the second clamping plate and are matched with the first step units to compress the rope belt. A wearer can conveniently adjust the overall length of the rope belt, the rope belt is suitable for different people, operation can be achieved without opening the adjusting clamp, the wearer canconveniently pull the rope belt to adjust the rope belt to the proper tightness degree, and meanwhile reverse loosening of the rope belt is avoided.

The invention provides a safety bandage for a seat of a baby, and relates to daily living equipment, in particular to a baby product. The safety bandage comprises a cushion, a bandage and three pairs of magic tapes which are matched with one another, wherein the cushion and the bandage are integrally formed, the two pairs of the magic tapes are separately arranged on the upper part of the outer side of the cushion and the lower part of the inner side of the bandage, and another pair of the magic tapes are arranged on the outer side of the left end of the bandage and the inner side of the right end of the bandage. The safety bandage has the advantages that when the baby has a meal, the baby can be fixed on a dining chair by utilizing the safety bandage for the seat of the baby, so that the risk of slip of the baby from the dining chair is avoided; through bonding design of the magic tapes, the bonding position is adjusted according to shape of the baby, the length of the safety bandage is adjusted, and accidental scratch, which is possibly caused by auxiliary materials, such as a plastic buckle, of the baby is eliminated, especially in winter, the hip of the baby does not contact the surface of the chair directly, so that a warming effect is played.