134results about How to "Not easy to skew" patented technology

A remote network seal-affixing device able to automatically affix seal under the control of remote signal and with high safety is composed of a box consisting of upper cover, main body, hydraulic cylinder, interface and electromagnetic lock, a sealing moving unit, a sealing holder, a document bearing tray, a seal destroyer, a recognizer, a projector, a camera head, and a control circuit.

The invention relates to a rigid train front end anticreeper which comprises a draw gear box and an anti-creep device which are arranged on the back of an end beam. A through hole for the anti-creep device to pass through is formed on the end beam. The anti-creep device comprises anti-creep teeth, a supporting base and a base, wherein the anti-creep teeth, the supporting base and the base are sequentially connected. The rear portion of the base of the anti-creep device penetrates through the through hole and then is connected on the draw gear box, and is fixed with the end beam through fasteners. Because the anticreeper is of a rigid structure and free of a bumper, and the base and the draw gear box are connected in a welding mode, the anticreeper is strong in rigidity and can not easily deflect under impact. Furthermore, the anti-creep device is connected with the end beam through bolts, the anticrepper is easy to replace in the real use process.

The invention discloses a rotary cultivator with multiple safety measures, and the rotary cultivator comprises a safety follow-up guard plate cage, a dual-action safety switch and a safety resistance fork wheel. A safety follow-up upper guard plate, a safety follow-up rear guard plate, a left safety cage and a right safety cage are adopted, thus adhered soil is reduced and wound grass is cut; folding-type and pushing-buckling-type dual-action safety measures are adopted, and no misoperations exist, thus the rotary cultivator is safer, reaches the standard, and is convenient for observation, thus the working efficiency is increased; and the safety resistance fork wheel is not easy to incline and is easy to guide, and the transportation cost can be reduced by the movable guard plates or detachable plates.

The invention relates to the technical field of piston ring installation, and discloses a high efficient hand-pressing type piston ring rapid installation device. The high efficient hand-pressing typepiston ring rapid installation device comprises a guide tank and an extrusion rod, wherein the guide tank and the extrusion rod sleeve a piston. The extrusion rod is located on the side, away from the piston, of the guide tank, and a handle is fixedly connected to the end, away from the guide tank, of the extrusion rod. The tank bottom of the guide tank is arranged in the shape of a circular truncated cone, and a connecting rod is fixedly connected to the tank bottom outside the guide tank. The connecting rod and the extrusion rod are connected through a clamping structure, and the clamping structure includes a connecting groove. The connecting groove is formed in the end, close to the guide tank, of the extrusion rod, sliding holes are symmetrically formed in the opposite groove walls ofthe connecting groove, and the end, away from the guide tank, of the connecting rod penetrates through a groove opening of the connecting groove and extends into the connecting groove. According to the high efficient hand-pressing type piston ring rapid installation device, clamping blocks are matched with the sliding holes for use, the connecting rod and the extrusion rod are disassembled conveniently, a piston ring sleeves conveniently, and the installation efficiency is improved.

The invention relates to paint spraying devices, in particular to a firefighting pipe paint spraying device which is provided for achieving the technical effects of being low in manufacturing cost, easy to operate, capable of automatically cleaning a surface layer and automatically spraying paint and uniform in paint spraying. In order to achieve the technical effects, the firefighting pipe paintspraying device provided by the invention comprises a support, a push frame fixed to the support, a rolling shaft rotatably connected with the push frame, a sliding wheel fixedly connected to the rolling shaft and an outer shell combined part I movably arranged on the side, close to the sliding wheel, of the push frame. According to the firefighting pipe paint spraying device, a firefighting pipecan be protected against deviation in a pipeline through a supporting device, and the surface layer of the firefighting pipe can be cleaned through a brush so that paint can be sprayed on the smooth surface of the firefighting pipe. A plurality of paint spray nozzles are arranged in a circular mode.

A wide-range horizontal mini-tiller for avoiding middle tillage omission by adopting a guide wheel matched lift-throwing type plow with a blade protecting disc adopts combination of a guide wheel (p9) and the lift-throwing type plow (p104) and serves as a novel tool applying front guide wheel matched plow to avoid middle tillage omission. Various safety measures are provided. By using a safe follow-up upper protective plate, a safe follow-up rear protective plate and left and right safe protective frames, the mud sticking amount is decreased, entangled grass is cut off, the work efficiency is improved, the mini-tiller is safe and up to the standard, and observation is facilitated. A safe resistance fork wheel does not easily incline and is easy to guide, movable protective plates are provided with detachable plates, and the transportation cost can be reduced. The mini-tiller is proved with a reverse gear and facilitates usage of an operator on the cultivated land edge, a handle is provided with an anti-misoperation device, the handle height is adjustable at high level, middle level and low level, a horizontal angle of the handle is adjustable at five levels, the height of a mud blocking rod is adjustable in vertical four levels, and rotary blades have overlapping phase difference and end teeth and facilitates sharpening of sawtooth blades. The safety is further improved by using the outer protective disc. In addition, due to the fact that the outer protective disc is a function wave protective disc and bounces when being pressed to deform, the mini-tiller has the effects of wide-range vibration reduction, vitality enhancing and multiple-point balancing. The guide wheel matched lift-throwing type plow provided with the blade protecting disc has the effect of avoiding the tillage omission.

The invention discloses a SMP radio frequency coaxial connector disassembly and assembly tool and provides a technical disassembly and assembly tool which has reliable separation and can reduce the damage to a radio frequency coaxial cable component caused by disassembly and assembly links. The tool is realized by the following technical solution that a front end of a lifting rod is provided witha U-shaped clamping groove and a C-shaped groove for accommodating an exposed cylindrical portion of an SMP socket, and the C-shaped groove communicates with a blind hole equipped with a thrust springand a steel ball. The lifting rod is fixed in an end hole of a sliding sleeve pushing disk through a plunger pin, a countersunk bolt is axially and threadingly connected to a tail cone of a hollow cone cylinder and a tail step shaft of the lifting rod through the plunger pin, and the tail step shaft is sleeved with a telescopic spring. When a head and seat of a radio frequency coaxial connector are separated, a large end cylindrical part of the SMP socket is contained in the C-shaped groove, the sliding sleeve pushing disk is pulled back and the telescopic spring is retracted with the liftingrod, the plunger pin is moved with to the sliding sleeve pushing disk to a limit bolt, the sliding sleeve pushing disk is loosened, the telescopic spring is extended, the lifting rod is reset, an SMPplug is taken out, and the separation is completed.

The invention relates to a mine tunnel water gushing-out advance rescue real-time embedded control device, and belongs to the technical field of real-time embedded detection control. The device is composed of device front part, a device middle part and a device rear part. The device front part comprises a device front part spiral bit. The device middle part is composed of a rotary joint, a telescopic rod, a claw part spiral bit, a forward driving claw, an external sound source receiving device, a communication module, a circulating moving plate, an LED light source and a three-dimensional imaging device. The device rear part comprises a cable data wire I, a power supply line I, an air channel, a rescue goods bin and a sound transmit-receive device. The mine tunnel water gushing-out advance rescue real-time embedded control device is capable of entering a rescue point to contact trapped persons in time after a water gushing-out accident of a mine tunnel and before a life channel is available, determining the trapped position and the surrounding environment, and providing bases and guidance for the next search and rescue decision; in addition, the device is internally provided with the rescue goods bin and the air channel, thereby providing the basic water source, food, drugs and fresh air to the trapped persons.

The invention provides a monitoring product imaging module device comprising a lens and an image sensor, wherein the monitoring product imaging module device further comprises a lens bracket structure, a push plate structure and a back plate structure; the lens bracket structure comprises a supporting plate, and a plurality of guide rods are arranged below the supporting plate; the push plate structure comprises a circuit board and a push plate main body, the back plate structure comprises a back plate main body and a screw, and a top end of the screw penetrates through the back plate main body and leans against a bottom surface of the push plate main body; the guide rods connect the circuit board, the push plate main body and the back plate main body together, a compression spring is arranged on the guide rod between the supporting plate and the circuit board, and a light shielding structure is further arranged between the supporting plate and the circuit board. The monitoring product imaging module device has high compatibility on different lenses and different image sensors, and relatively high market adaptability; in addition, the lens is fixed more quickly due to a self-centering fixing mode, and the reject ratio of the product is greatly reduced; and the wavy light shielding structure is more difficult to leak light or enter dust.

The invention relates to an improved wide-width horizontal type mini-tiller which has various safety measures. A safety following upper guard plate, a safety following rear guard plate and left and right safety guard frames are used, slime is reduced, winding grass is cut off, working efficiency is improved, and the mini-tiller is safer, up to standard and convenient to observe, a safety resistance fork wheel is not easy to incline and easy to guide, and transportation cost can be lowered by a movable guard plate or a detachable plate. The mini-tiller has a reverse gear and is convenient for an operator to use on farmland edges, a handle is provided with an anti-misoperation device, a handrail has three gears for adjusting height and has five gears for adjusting angles left and right, and a mud-blocking rod has four gears for adjusting height. Rotary blades have a mutually overlapping phase difference, have end teeth favorable for the sharpness of a sawtooth blade, and have an external guard plate assembly, and accordingly safety is further improved. Two external guard plates are function wave external guard plates, so safety protection function is achieved, and furthermore, due to the function wave external guard plates, the mini-tiller is pressed and deforms and then bounce back, and has functions of wide-width vibration reduction, increased vitality and multipoint balancing.

The invention discloses an integrated advertising street lamp. The integrated advertising street lamp comprises a lamp pole, a base, a lamp holder and a storage battery. The lamp pole is fixed on the ground through the base, and the lamp holder is arranged on the lamp pole close to the top end through a supporting rod. A rectangular embedding groove is formed in the lamp pole below the lamp holder, and a multimedia display screen is embedded in the rectangular embedding groove. A solar cell panel is connected with the top end of the lamp post and is connected with the storage battery arranged in the base through a wire, and the storage batter is connected in series with the display screen. The rectangular embedding groove is formed in the lamp pole below the lamp holder, and the multimedia display screen is embedded in the rectangular embedding groove, so that the multimedia display screen is stable even in windy days. According to the integrated advertising street lamp, the design is ingenious, and by the aid of the integrated structure design, the structure is stable, and the street lamp is not prone to inclination and falling.

The invention provides a column welding system which comprises a truss mechanism, a positioner and a welding robot. The truss mechanism comprises a three-axis sliding table and a clamp mounted on thethree-axis sliding table, wherein the three-axis sliding table and the clamp can act in a fit manner to transfer a workpiece to the positioner; the positioner comprises two positioning assemblies which are distributed in a spaced manner to clamp the left and right sides of the workpiece. Each positioning assembly comprises a base, a first clamping part, a second clamping part, a connector and a compacting driving device. The first clamping part is mounted on the top of the base, the second clamping part and the first clamping part are closed to form a clamping part with clamping holes, the clamp can place the workpiece in the two clamping holes flatly, the connector is connected to the second clamping part, the compressing driving device is hinged to the base, an output rod of the compressing driving device is hinged to the connector, and the compressing driving device can overturn upward or can push the second clamping part. The welding system can operate continuously and is high in welding efficiency.

The invention provides a steel plate bending machine, and relates to the technical field of plate bending equipment. The steel plate bending machine comprises a bending machine body, wherein a hydraulic cylinder is arranged at the top of the bending machine body; a bending upper cutting die is arranged on a piston rod of the hydraulic cylinder; a workbench is arranged at the position, corresponding to the bending upper cutting die, of the bending machine body; a cutter groove matched with the bending upper cutting die is formed in the top surface of the workbench; a plate positioning rod device and a plate anti-warping device are arranged at the front end and the rear end of the workbench respectively; the plate positioning rod device comprises a left guide rotating plate and a right guiderotating plate which are arranged in parallel at an interval; the left guide rotating plate and the right guide rotating plate are both in a fan shape; the left guide rotating plate and the right guide rotating plate are fixedly connected through a connecting shaft; and a left plate groove and a right plate groove are formed in the front end surface of the workbench. The steel plate bending machine has the advantages that the phenomenon that steel plates with different lengths are warped during bending can be avoided, the operation efficiency can be improved, and reworking can be avoided.

The invention relates to a folding device which is provided with a first conveyor belt and a second conveyor belt; an angle exists between the two conveyor belts; a folding assembly is arranged between the first conveyor belt and the second conveyor belt; the folding assembly comprises a bearing seat, a main transmission shaft, a sun gear, a transmission gear, an output gear, a swivel plate and an inserting plate, wherein the sun gear is fixedly arranged on the bearing seat; the main transmission shaft passes through the sun gear and is fixedly connected with the swivel plate; the transmission gear and the output gear are arranged on the swivel plate, and the sun gear is meshed with the transmission gear; the transmission gear is meshed with the output gear; the inserting plate and the output gear are coaxially fixed and connected. The folding device utilizes the unique rotation law of the planetary gear mechanism, and uses the inserting way of the inserting plate to complete the folding and transport steps; the motion of inserting plate is supple; the product in the folding process is not easy to skew and does not wear out; the folding device has the characteristics of stable work, safety and reliability, simple overall structure, convenient installation and maintenance, reasonably clever design; the device can adapt to the requirements of high-speed production line, which has high practicality.

Disclosed is a wide horizontal mini-tiller. Various safety measures are provided, and safety follow-up upper guard boards, safety follow-up rear guard boards and left and right safety guard frames are used, so that slime is reduced, winding grasses are cut off, the work efficiency is improved, and the mini-tiller is safe and up to standards and convenient to observe, a safety resistance fork and wheel assembly is not prone to inclination and can perform guiding easily, and by the aid of the movable guard boards or detachable boards, transportation costs can be reduced; the mini-tiller is provided with a reverse gear, so that usage of the mini-tiller by an operator at the tilling land edge is facilitated; an anti-misoperation unit is arranged on a handle, top and low three adjustable gears are arranged at the handrail height, five adjustable gears are arranged at the left-right angle of a handrail, and top and low four adjustable gears are arranged at the height of a slime-resistant rod; overlapping phase differences are formed among rotary blades, and end teeth are arranged on the rotary blades, so that saw-tooth blades are sharp.

The invention provides an improved metal sprinkler gun. A lug and a concave pit are arranged at reversing and positioning parts so that the metal sprinkler gun is not easy to loosen; a thrust bearing gasket and a function wave gasket which are provided with self-centering inclined planes are not easy to incline and a blocked portion is reduced; a ringed spring (m19b) which is provided with a toggle spring can be used for enabling triggering conversion to be more reliable; a parabola water baffle can be used for enabling the water to be more ideally scattered; a metal water outlet (15) which is provided with a parabola channel (15b) and a reinforced rib plate (15a) can be used for increasing the spraying coagulation power and smoothness; a handle part of a water thrashing target (m8) is provided with a fast-slow adjustment screw (m22) and a fastening screw cap (m23); when the length needs to be adjusted or a self counter weight is changed or suspended heavy objects including eardrops or threading lines are matched, the distance and the weight can be changed and a rotary inertia moment can be changed, so that a method capable of influencing and regulating the fast and slow swinging of the sprinkler gun is provided; according to the invention, the fast and slow swinging of the sprinkler gun can be regulated from no fast and slow regulations and a plurality of comprehensive developments are improved, so that the major contribution on the sprinkler gun can be made.

The invention discloses a water suction pump with fixing and supporting functions. The water suction pump comprises a fixing frame. Bearing plates are arranged on the top of the fixing frame. A supporting shaft penetrates the inner wall of the fixing frame. The surface of the supporting shaft is fixedly connected with the top of a conical balancing weight. Supporting legs are arranged at the bottom of the fixing frame. The bottoms of the supporting legs are movably connected with the tops of supporting plates. Through holes are formed in the tops of the supporting plates. According to the water suction pump with the fixing and supporting functions, the conical balancing weight, the supporting legs, the supporting plates and ground insertion rods are arranged and used in cooperation so that the water suction pump can be placed on the bearing plates; movable rods are made to retreat from fixing grooves by pulling lifting blocks on the supporting legs, and therefore the supporting plates lose constraint, and the angle of the supporting plates is adjusted according to the ground situation; then, the movable rods are inserted in the fixing grooves by pressing the lifting blocks downwards, the ground insertion rods are pressed to be inserted in the ground at the moment, and therefore the stability and the settlement prevention capacity of the supporting plates are increased, and the water suction pump can complete the water suction work under the severe environment.

The invention discloses a numerically controlled universal flange machine, and relates to the field of mechanical manufacture. The numerically controlled universal flange machine comprises a base (1), a motor (2), frames (3), a speed reducer (4), an upper roller (5) and a lower roller (6), wherein the upper roller (5) and the lower roller (6) are arranged between two frames (3); the speed reducer (4) is connected with the upper roller (5); and the motor (2) and the frames (3) are arranged on the base (1). The numerically controlled universal flange machine also comprises a mold (7) which is arranged outside the lower roller (6). The upper roller can move to prebend plates; the rolling speed is high; manual subsequent processing is not needed; and the working efficiency is improved. The mold is arranged on the lower roller; the lower roller can clamp the plates; poor conditions such as deflection, displacement and the like cannot occur in the rolling process; and the use is convenient.

The invention relates to the technical field of dairy product filling, in particular to a sterilizing and filling facility for dairy products. The facility comprises a machine frame, a disinfection bin and a storage tank body, wherein supporting legs are fixedly installed at the bottom end of the machine frame, and a conveying assembly is installed inside the machine frame. The disinfection bin is fixedly installed at the upper end of the machine frame, a feeding bin is arranged at the left end of the disinfection bin, a discharging bin is arranged at the right end of the feeding bin, a supporting frame is further fixed to the bottom end of the storage tank body, and travelling wheels are installed at the bottom end of the supporting frame. According to the sterilizing and filling facility for the dairy products, a container can be clamped and fixed, and the situation that the liquid flow sprayed out of a filling nozzle impacts on the container to enable the container to roll over is avoided. Meanwhile, the upper edges of a front fixing cover and a rear fixing cover are higher than a spraying opening of the filling nozzle, so that the windproof effect is further achieved, and the phenomenon that the liquid flow sprayed out by the filling nozzle is prone to be blown to be inclined by wind power is avoided.

The invention discloses an electric brush structure installed in a slide wire current collector and relates to the technical field of slide wires. The electric brush structure comprises a current collector shell and an electric brush; an electric brush fixing groove is formed in the current collector shell, a guide brush holder is fixed in the electric brush fixing groove, an opening groove is formed in one side of the guide brush holder, a constant force driving spring assembly is clamped in the opening groove, the constant force driving spring assembly comprises a constant force coil springand an L-shaped fixed support which are riveted together through rivets, the constant force coil spring is placed in a cavity of the guide brush holder, the electric brush is further arranged in the cavity of the guide brush holder in a sliding mode, the constant force coil spring contacts and abuts against the bottom surface of the electric brush, a guide sliding chute is formed in one side of the electric brush, and the guide sliding chute is in sliding fit with the head of a cylindrical end of the rivet. According to the electric brush structure in the invention, the electric brush can be well guided during telescopic motions, the electric brush is not prone to skewing and jamming, and the electric brush is not easy to wear; the constant force spring driving structure can provide balanced driving force, thereby facilitating stable and reliable power supply of the slide wire in the moving process.

The invention discloses a refrigerator. The refrigerator comprises a refrigerator body, a door body, a compressor and a water pan, wherein a compartment is defined in the refrigerator body; a compressor cabin is arranged on the lower part of the refrigerator body; the compressor is arranged in the compressor cabin; a first installation portion is arranged at the top of the compressor; the bottom surface of the water pan is fit with the top surface of the compressor; and a second installation portion is arranged at the bottom of the water pan and is fit with the first installation portion along the up-down direction so as to fix the water pan at the top of the compressor. According to the refrigerator disclosed by the embodiment of the invention, the water pan is fixed at the top of the compressor by fitting the first installation portion with the second installation portion along the up-down direction, the assembly method is simple and feasible and the first and second installation portions are convenient to butt, thus improving the assembly efficiency; and the water pan fit along the up-down direction can be designed to have larger area to be contacted with the top surface of the compressor and the contact area of the water pan and the compressor is enlarged, so the water pan is not easy to fall in the transport process.

The invention relates to the technical field of geological survey, in particular to survey equipment for geological survey. The survey equipment comprises an engine, a speed reducer arranged at the output end of the engine, a coupler arranged at the output end of the speed reducer, a rock core pipe arranged on a coupler and a drill bit in threaded connection with the rock core pipe. Guide pipes are fixedly arranged on the two sides of the engine, guide rods are arranged in the guide pipes in a sliding mode, positioning rings are arranged on the guide rods in a sliding mode, and locking assemblies used for fixing the positioning rings are arranged on the positioning rings. The survey equipment has the effect that a worker can conveniently control the feeding distance of the drill bit.

The invention provides a disposable oropharynx pathway oxygen feeding mask which comprises a mask main body and a skin pad jointed to a port of the mask main body in an encircling manner, wherein the outer side of the mask main body is convex; the inner side of the mask main body is concave; a connecting tube head with an oxygen feed port is connected to the outer side of the mask main body; an oropharynx parichnos is connected to the edge of the oxygen feed port on the inner side of the mask main body; and the through hole of the oropharynx parichnos is communicated with the oxygen feed port. The oxygen feeding mask has the benefits that the advantages of a mask are maintained while obstruction caused by a tongue can be avoided during oropharynx ventilation, so that limited airflow can enter the airway of a patient directly, the supply quantity of gas is enlarged, the lungs of the patient can be expanded better, the consumption of oxygen can be reduced, the availability of breathing emergency aid can be improved, the possibility of warping is low, required airflow can be fed to the airway of the patient accurately, and the tongue and the teeth of a twitching patient can be prevented from being damaged. The oxygen feeding mask further has the advantages that the operation is simple and fast; the use is convenient; and the cost is low.

The invention relates to an automatic labelling device for a packaging tape rewinder. The automatic labelling device for the packaging tape rewinder comprises a rack, wherein a lug is arranged on theinner side wall of the rack; a groove is formed in the upper surface of the lug along a conveying direction perpendicular to a packaging tape; a label is arranged in the groove in a penetrating way; acutting device is arranged on the rack; a first roll shaft and a second roll shaft are rotatably arranged between the rack; a third roll shaft is rotatably arranged right under the second roll shaft;a slide rail is arranged between the rack; a clamping assembly is slidably arranged on the slide rail; an electromotor is driven, so that a packaging tape to be winded passes through the third roll shaft and then penetrates through the first roll shaft and the second roll shaft so as to move; then the clamping assembly slides along the slide rail, so that the label is extracted from a gap betweena pressing block and the groove; then the cutting device is used for cutting off the label; and the third roll shaft is driven to rotate, so that the label attached onto the surface of the third rollshaft is abutted against the packaging tape to be winded and is adhered onto the packaging tape. The automatic labelling device for the packaging tape rewinder provided by the invention has the effects on preventing the label from being pasted slantways and preventing the label waste.

The invention discloses a depth-adjusting self-rotating fish finder, a use method thereof, and a fish-finding array formed thereby. The fish finder comprises a floating cylinder and a probe rod arranged at the bottom of the floating cylinder. A plurality of floating bodies are arranged at equal intervals around the outer circumference of the floating cylinder, and are connected with the floating cylinder through connecting rods. Each floating body is provided with a fan blade. The bottom end of the probe rod is provided with a vortex spring box. A sonar device in the horizontal direction is suspended from the vortex spring box by a suspension line. At least one anchoring counterweight bar is suspended from the bottom of the sonar device by a suspension line. The floating cylinder is provided therein with a controller, a battery and a wireless signal transmitter which are electrically connected. The sonar is electrically connected to the controller.

The invention provides a pile foundation reinforcing device and a reinforcing method, and relates to the technical field of building equipment. The pile foundation reinforcing device comprises a pilefoundation column sleeve, wherein a stabilizing disc sleeves the exterior of the pile foundation column sleeve, and the pile foundation column sleeve and the stabilizing disc are of cylindrical structures; a plurality of right triangle reinforcing plates are vertically arranged on the outer wall of the pile foundation column sleeve, the right triangle reinforcing plates are sequentially and equidistantly distributed along the outer circumference of the pile foundation column sleeve, one of the right-angle sides of each right triangle reinforcing plate is arranged on the outer wall of the pilefoundation column sleeve, and the inclined side of each right triangle reinforcing plate faces the stabilizing disc; and a first connecting rod is further arranged between the inclined side of each right triangle reinforcing plate and the stabilizing disc, an arc-shaped connecting rod is further horizontally arranged between every two adjacent right triangle reinforcing plates, and arc-shaped openings of the arc-shaped connecting rods face the pile foundation column sleeve. The pile foundation reinforcing device has the advantage that the strength of a pile foundation can be reinforced in thehorizontal direction and in the vertical direction, so that the overall strength of the pile foundation is improved.

The invention discloses a composite filter core assembly, which comprises a shell, a first filter group and a second filter group, wherein the interior of the shell is divided into a first containingcavity and a second containing cavity in the length direction, the two containing cavities are separated through a transition plate, a transition opening is formed in the transition plate, the water pressure in the second containing cavity is larger than the water pressure in the first containing cavity, a water stop structure is arranged at least one inlet and outlet in the shell, the first filter group is arranged in the first containing cavity, the second filter group is arranged in the second containing cavity, the water stop structure comprises a water stop concave table, a water stop core and a water stop spring, the water stop concave table is connected to the shell, the water stop core can move between a cut-off position and a conduction position, the water stop structure blocks the inlet and outlet when the water stop core is in the cut-off position, the inlet and outlet communicates with the interior of the shell when the water stop core is in the conduction position, and thewater stop spring is connected between the water stop concave table and the water stop core, and normally drives the water stop core to move towards the cut-off position. The composite filter core assembly disclosed by the embodiment of the invention is high in integration level and convenient to use.