39results about How to "Press and save effort" patented technology

The invention provides a mop barrel, comprising a barrel body and further comprising a speed reducing device. The speed reducing device comprises a base; a chassis is fixedly arranged at the upper end of the base; a planet gear containing cavity is arranged on the chassis; a circle of a gear ring is arranged on the inner wall of the planet gear containing cavity; a rotating plate is covered on the chassis; a planet gear is arranged on the back face of the rotating plate; the planet gear is engaged with the gear ring; the mop barrel further comprises a sun wheel; the sun wheel is engaged with the planet gear; a driving head is further arranged at the upper end of the sun wheel; and a driven concave-convex part is further arranged on the upper end face of the rotating plate. The invention further provides the novel mop matched with the mop barrel; a friction fixing block on the mop is linked with a stainless steel cover sheet through friction force, and is integrated with a rotating body, so that the concentricity is good, and the more smooth rotation is realized. When a mop rod is vertically arranged, a left friction fixing block and a right friction fixing block are abutted against with a stainless steel cover sheet; and when the mop rod is reversely arranged, the left friction fixing block and the right friction fixing block are in friction with the stainless steel cover sheet. The left friction fixing block and the right friction fixing block are in friction with the stainless steel cover sheet so that the friction consumption is small and the service life is longer.

The present invention relates to a punch comprising a base; at least two holes are equipped above the base and at least two fixing bases are fixed on the top of the base and aligned to the holes; an upper cover which is equipped on every fixing base by a pivot; a first force application arm of pressing part and a linked first force resistant arm are formed at both ends of the pivot connection points; a linked group which is equipped on every fixing base by linked base between the upper cover and the base; a secondary force application arm with a corresponding guided groove and a secondary force resistant arm with a slot are formed at both ends of the pivot connection points; the guided groove and the first force resistant arm are equipped by pivot; a punching piece which is equipped with a knife; the knife is extended to every fixing base and the base hole for displacement and connected with the secondary force resistant arm by pivot by a link lever; the first force application arm equipped on the upper cover is longer than the first force resistant arm and the secondary force application arm equipped on the linked base is longer than the secondary force application arm; in this way, the punching piece can punch faster and neatly; the pressing can save labor and the structure is simple.

An improved type head press type one-time blood collecting device comprises a casing, a pin core, a spring and a push ejection device, and an elastic clamp used for clamping and locking the pin core is arranged in the casing; the device is characterized in that a yielding space is formed in the tail end of the elastic clamp in a lateral opening direction; a stop block and an inclined surface are arranged on the push ejection device; in a locking state before ejection, the stop block occupies the yielding space so as to limit the lateral opening amplitude of the elastic clamp; during press ejection, the pushing device moves back and forth in the casing and drives the stop block to leave the yielding space, at the same time, the inclined surface of the push ejection device forces an elastic claw to open laterally, and the pin core is guided to produce ejection puncture. According to the improved type head press type one-time blood collecting device, the allowed opening amplitude of the elastic clamp is controlled by controlling the side yielding space, and finally, the reliability whether the pin core breaks away from clamping of the elastic clamp can be effectively controlled. The mechanism reliability problem caused by clamping force of the elastic clamp in a blood collecting device ejection mechanism and the problem between the use and the hand feeling are solved.

The invention discloses a surface flatness high-precision detection device for rolling bearing manufacturing, and the device comprises: a motor which is fixedly connected to the interior of a bottom plate; a rotating disc, wherein the lower surface of the rotating disc is in key connection with the top end of the motor, and the rotating disc is in sliding connection with the upper surface of the bottom plate; a fixed frame which is fixedly connected to the upper surface of the rotating disc; a rotating shaft which is in shaft connection with the interior of the fixed frame; and a pushing structure which is arranged in the rotating disc. According to the surface flatness high-precision detection device for rolling bearing manufacturing, the fixing device can be correspondingly adjusted according to a rolling bearing needing to be detected, then the rolling bearing can be rapidly fixed, the surface flatness of the rolling bearing can be judged according to the change of a pointer, the rolling bearing is taken out by pressing a pressing device, and therefore, the flatness of the rolling bearing can be detected more conveniently.

The invention discloses a brake pulling device used for a cart. The brake pulling device used for the cart comprises a pressing part arranged on a push rod (1) of the cart; a digging rope (2) is arranged in the pressing part; the pressing part comprises a pressing block (3) and an eccentric wheel (4); the eccentric wheel (4) can be eccentrically and rotatably arranged in the inner chamber of a push rod (1) through an eccentric shaft (41); both ends of the eccentric shaft (41) are respectively fixed to side faces which correspond to both sides of the push rod (1); the pressing block (3) is located in the inner chamber of the push rod (1); a strip-shaped chamber (31) is vertically formed in the pressing block (3); a concave chamber (32) is formed in the lower part of the pressing block (3); the eccentric wheel (4) extends into the concave chamber (32), and is movably connected with the pressing block (3); the eccentric shaft (41) of the eccentric wheel (4) is located at the position of the strip-shaped chamber (31) of the pressing block (3); the digging rope (2) is wound on the bottom face of the eccentric wheel (4) and passes through a fastener hole (43) of the eccentric wheel (4) so as to be fixed to the end face of the fastener hole (43), and the pressing block (3) is provided with a locking mechanism. The brake pulling device used for the cart, disclosed by the invention, has the advantages that the operation is labor-saving and convenient, the structure is firm and compact, and the service life is long.

The utility model relates to an easy-to-collect-and-carry lever-type cardiopulmonary resuscitation compressor, which comprises a fixed part and a swing part. The swing part and the fixed part are hinged by a swing shaft; the swing part comprises a press head, a press swing rod, a movable handle held by the rescuer's wrist. The swing end of the press swing rod is connected with the movable handle;the fixed end of the press swing rod is connected to the swing shaft; the press head and the press swing rod move up and down around the swing shaft with the movable handle; the easy to collect and carry lever-type cardiopulmonary resuscitation compressor is characterized in that the fixed part is a scaffold, the swing shaft is mounted on the scaffold, the swing end of the press swing rod is alsoconnected with a vertical floating grounding bar, the press swing rod is made in subsection, and movable plug-in structures are arranged between sections of the press swing rod. The easy-to-collect-and-carry lever-type cardiopulmonary resuscitation compressor has the advantages of small volume and low cost, which is suitable for the popularization of family and public places so that first-aid compressions can be carried out at once, and can effectively control the pressing depth and save energy.

The invention discloses a novel glue gun. The glue gun comprises an outer shell, an inner rotating cylinder is rotationally connected in the outer shell; a plurality of rubber pipes are formed in the inner rotating cylinder; a glue outlet conical head is glidingly connected into each rubber pipe; a heater is arranged in the outer shell; a spiral guide shaft is rotationally connected to the inner rotating cylinder; the periphery of the inner rotating cylinder is rotationally connected with a switching ring; a switching gear is formed in the inner wall of the switching ring; the switching ring is fixedly connected with a friction ring; a one-way transmission shaft is connected in the outer shell; and a driving plate is glidingly connected into the outer shell. When the one-way transmission shaft is located in an upper limit position, the switching ring rotates to enable the glue outlet conical heads to slide back and forth; when the one-way transmission shaft is located in the lower limit position and the glue outlet conical heads are located in the rear limit position, the switching ring rotates to make the inner rotating cylinder rotate in the circumferential direction. Glue sticks can be heated, and liquid glue is extruded for adhesion; the plurality of rubber pipes are arranged, so that the glue sticks with various colors can be mounted and accommodated; the glue outlet conical heads can move back and forth to prevent glue heads from being polluted.

The invention discloses a portable multifunctional integrated water purification device, and belongs to the field of feedwater treatment devices. The portable multifunctional integrated water purification device comprises a water inlet pipe, a manual pressurizing device, a polyester fiber filter, an activated carbon filter and an ultrafiltration membrane filter; the manual pressurizing device comprises a wrenching rod, a connecting rod, a piston, a sealing ring and a piston cylinder; the manual pressurizing device is used for making the piston move up and down by pressing the handheld end of the wrenching rod up and down; the polyester fiber filter, the activated carbon filter and the ultrafiltration membrane filter are connected in sequence through a pipeline to achieve water purificationin sequence. According to the portable multifunctional integrated water purification device, through the combination of several treatment units, various contaminants in water can be effectively removed, and different effluent qualities can be achieved according to different water demands under the condition of the same water source. Electric pressurizing equipment and manual pressurizing equipment are provided, and the portable multifunctional integrated water purification device can be applicable to various scenes, and play a huge role particularly in regions with electricity utilization difficulty and fields.

The invention relates to a beverage bottle for storing a solute. A screwing part of a bottle cap main body of the beverage bottle is screwed with a bottle neck of a bottle body; an inner cylinder part of the bottle cap main body is sleeved on a membrane cutting inner cylinder and is buckled on an inner convex clamping rib of the inner cylinder part through a supporting step of the membrane cutting inner cylinder; a pressing part of the bottle cap main body is abutted against the closed upper end of the membrane cutting inner cylinder; a deformation part of the bottle cap main body is abutted against a water outlet hole of the membrane cutting inner cylinder; a water outlet cylinder part of the bottle cap main body forms a communicated water outlet passage structure when the deformable part of the bottle cap main body gets away from the water outlet hole of the membrane cutting inner cylinder; a drinking water suction drum is slidably sleeved on the bottle cap main body to form a switch control structure of the water outlet passage; a space for storing the solute is formed by a membrane and the membrane cutting inner cylinder; the membrane cutting inner cylinder is provided with double side membrane cutting edges to form double side membrane cutting structures of the membrane; and the membrane cutting inner cylinder is provided with a notch to form a membrane adhesion structure of the membrane after membrane cutting. The beverage bottle has the advantages of labor saving for pressing, good membrane cutting effect, quick solute release, complete release and capability of realizing direct drinking.

The invention discloses a hydraulic pipe bender, and provides a hydraulic pipe bender which can meet the pipe bending machining of pipes of various specifications under the condition that a rotating die does not need to be replaced, saves time and labor during machining, and is safe and reliable. The technical problems that in the prior art, a set of bending dies and rotating dies can only machinepipes of one specification, the pipe bending machining efficiency is low, and the safety and reliability are low are solved. The hydraulic pipe bender comprises a machine body and a hydraulic mechanism arranged on the machine body, wherein a hydraulic handle on the hydraulic mechanism pushes a push rod upwards through hydraulic oil; the top end of the push rod is detachably connected with a bending die; a lower guide groove matched with a to-be-machined pipe is formed in the outer ring face of the top of the bending die; the two sides, opposite to the bending die, of the upper portion of themachine body are rotationally connected with rotating dies correspondingly; a plurality of rolling areas are formed on the outer ring faces of the rotating dies in the circumferential direction; and each rolling area is provided with at least one pipe clamping groove of one specification. The pipe clamping grooves and the lower guide groove jointly clamp the to-be-machined pipes of the corresponding specifications for pipe bending machining.

The invention discloses a waterway switching mechanism of a shower head. The waterway switching mechanism comprises a main body, a first switching piece and a button; the main body comprises a showernozzle and a shower handle, a raw water channel and an overflowing cavity which are communicated with each other are formed in the shower handle, and a first water outlet channel and a second water outlet channel are formed in the shower nozzle; the first switching piece is movably arranged on the main body and is used for controlling the water outlet end of the overflowing cavity to be communicated with the first water outlet channel and the second water outlet channel in a switched manner; and the button is arranged at the joint of the shower nozzle and the shower handle and is arranged in asliding manner in the axial direction of the shower handle, and the button is in transmission fit with the first switching piece, wherein the button is eccentrically arranged towards one side of a water outlet surface cover of the shower nozzle relative to the axis of the shower handle. According to the scheme, the button is arranged in the direction parallel to the axial direction of the showerhead handle in the sliding manner, the operation habit of a user is better met, single-hand control is achieved, product space arrangement is better facilitated through eccentric arrangement of the button, the structure is simple, and operation is convenient.

The invention provides a mop barrel, comprising a barrel body and further comprising a speed reducing device. The speed reducing device comprises a base; a chassis is fixedly arranged at the upper end of the base; a planet gear containing cavity is arranged on the chassis; a circle of a gear ring is arranged on the inner wall of the planet gear containing cavity; a rotating plate is covered on the chassis; a planet gear is arranged on the back face of the rotating plate; the planet gear is engaged with the gear ring; the mop barrel further comprises a sun wheel; the sun wheel is engaged with the planet gear; a driving head is further arranged at the upper end of the sun wheel; and a driven concave-convex part is further arranged on the upper end face of the rotating plate. The invention further provides the novel mop matched with the mop barrel; a friction fixing block on the mop is linked with a stainless steel cover sheet through friction force, and is integrated with a rotating body, so that the concentricity is good, and the more smooth rotation is realized. When a mop rod is vertically arranged, a left friction fixing block and a right friction fixing block are abutted against with a stainless steel cover sheet; and when the mop rod is reversely arranged, the left friction fixing block and the right friction fixing block are in friction with the stainless steel cover sheet. The left friction fixing block and the right friction fixing block are in friction with the stainless steel cover sheet so that the friction consumption is small and the service life is longer.

The invention discloses a hot melt glue gun. The hot melt glue gun comprises an outer shell; an inner rotating cylinder is rotationally connected into the outer shell; a plurality of glue pipes are movably mounted in the inner rotating cylinder; the front ends of the glue pipes are fixedly connected with a glue outlet conical head; a guide plate is formed on the inner wall of the inner rotating cylinder; a guide chute is formed in the guide plate; a one-way transmission shaft is rotationally connected into the outer shell; a driving plate is slidably connected into the outer shell; through grooves are formed in the inner walls of the glue pipes; a switching gear is connected in the outer shell; the lower portion of the outer shell is slidably connected with a switching plate; a linkage plate is formed at the upper end of the switching plate; and a heating sheet is arranged on the linkage plate. When the switching plate is located at the front limit position, the one-way transmission shaft rotates to enable a lowest glue stick to be fed forwards; and when the switching plate is located at the rear limit position, the one-way transmission shaft rotates to enable the inner rotating cylinder to rotate. According to the hot melt glue gun, the glue sticks can be heated for adhesion; the glue sticks with various colors can be mounted and accommodated; and the glue outlet conical head can move forwards and backwards, use is simple and convenient, and glue head pollution is prevented.

The invention belongs to the technical field of hydraulic reamer tools, and relates to a hydraulic inclined hole reamer. The hydraulic inclined hole reamer comprises a pump body, a fixed handle clamped to the pump body, and a driving mechanism hinged to the pump body. An oil inlet channel, a work oil cavity and an oil outlet channel are formed in the pump body, an oil storage bag is arranged in the fixed handle, and a check valve allowing oil liquid to enter the work oil cavity in one direction is detachably arranged in the oil inlet channel. An oil pump core is obliquely arranged in the pump body, one side of the inner end of the oil pump core is clamped into the oil inlet channel, and the outer end of the oil pump core abuts against the driving mechanism. A pressure relief structure allowing the oil liquid to enter the oil storage bag in one direction is arranged in the oil outlet channel. The oil pump core is obliquely arranged in the pump body, a movable handle is arranged in front of the fixed handle, space is fully utilized, the size of the whole structure is reduced, carrying is convenient, operation with one hand is convenient, the oil suction and return effect is good, and work efficiency is improved.

An improved head-pressing disposable blood collection device, including a shell, a needle core, a spring and a pusher, and an elastic clip is arranged in the shell to clamp and lock the needle core; There is a space for giving way in the direction of opening; there are stoppers and slopes on the pusher; in the locked state before launching, the stopper occupies the space for giving way to limit the lateral opening range of the elastic clip; when pressing to launch , the pusher moves backward in the shell, driving the stopper to evacuate the space, and at the same time, the slope of the pusher forces the elastic claws to open sideways, causing the needle core to be unhooked to produce a shooting puncture. The invention controls the allowable opening range of the elastic clip by controlling the size of the lateral clearance gap, and finally can effectively control the reliability of whether the needle core is detached from the elastic clip. The mechanism reliability and the problems between use and hand feeling caused by the clamping force of the elastic clip in the ejection mechanism of the blood collection device are solved.

The invention relates to a low-friction labor-saving drain valve lifting mechanism and a drain valve thereof. The lifting mechanism is arranged in a drain valve body; a button base is installed on thedrain valve body; and a buoy assembly which is in linkage fit with the lifting mechanism to drain and close water is arranged in the drain valve body. The lifting mechanism comprises a button, a driving piece, two supporting swing arms, a pull rod and a lifting rod. The driving piece is mounted at the lower side of the button, and two pressing rods are downwards formed on the driving piece; the two supporting swing arms are hinged to the same transverse shaft of the button base to form an X-shaped supporting structure; the upper end of each supporting swing arm is connected with a pressing rod of the driving piece in a supporting mode; and the lower ends of the supporting swing arms are hinged to pull rods arranged on the two sides of the lifting rod; and the two pressing rods of the driving piece drive the two supporting swing arms to swing in the opposite directions at the same time so as to drive the pull rods on the two sides to pull the lifting rods at the same time to form a vertical lifting balance structure of the lifting mechanism. The low-friction labor-saving drain valve lifting mechanism has the advantages that the friction is low, the labor is saved, and the service life of the product is prolonged.

The invention relates to a self-disinfecting toothbrush comprising a toothbrush handle, a toothbrush rod and a toothbrush head; the handle is provided with a vertical separator plate and a cavity for storing cleaning solution; the upper end of the separator plate is provided with a controller; the upper end of the controller extends from the upper end surface of the handle; the cavity is divided into a left cavity and a right cavity by the controller and the separator plate; the controller is used for spraying the cleaning solution to the toothbrush head. The toothbrush of the invention has the beneficial effects that a certain kind of cleaning solution can be selectively sprayed by adding different cleaning solutions in the left cavity and the right cavity with only one nozzle; users can quickly and easily replace the different cleaning solutions for cleaning and disinfecting the toothbrush; the cleaning solution and the toothbrush head are not communicated and are entirely isolated so that toothpaste will not be mixed with the cleaning solutions when users use the toothbrush, which is convenient to use and has strong practicability.

The invention discloses a hydraulic pipe bender, which provides a safe and reliable hydraulic pipe bender that can meet various specifications of pipe bending processing without changing the rotary die, saves time and labor, and solves the problem There are technical problems such as a set of bending dies and rotary dies that can only process pipes of one specification, low processing efficiency of bending pipes, and low safety and reliability. It includes the body and the hydraulic mechanism on the body. The hydraulic handle pushes the push rod upward through hydraulic oil, and the bending die is detachably connected to the top of the push rod. There is a lower guide groove on the top outer ring surface of the bending die that is compatible with the pipe to be processed. The two sides on the opposite side of the machine body are respectively connected to the rotary mold. The outer ring surface of the rotary mold forms several rolling areas along the circumferential direction. At least one type of pinching groove is provided on each rolling area. Together with the lower guide groove, the pipe to be processed of the corresponding specification is clamped for pipe bending processing.

The invention relates to a low-friction labor-saving double-drainage-valve lifting mechanism and a drainage valve thereof. A buoy assembly which is in linkage fit with the lifting mechanism to drain and close water is arranged in a drainage valve body; the lifting mechanism comprises a left swing piece, a right swing piece and a lifting rod. Swing pieces of the left swing piece and the right swing piece are erected on the left carrying rod and the right carrying rod of the button base respectively to form a pivot joint rotating structure. A front supporting shoulder and a rear supporting shoulder are arranged on the upper portion of the lifting rod, sliding grooves are formed in the front supporting shoulder and the rear supporting shoulder, a left swing piece hinge shaft is installed on the right half sections of the sliding grooves to form a hinge rotation labor-saving structure, and a right swing piece hinge shaft is installed on the left half sections of the sliding grooves to form a hinge rotation labor-saving structure. When water is closed, the swing pieces of the left swing piece and the right swing piece are reset, and the left swing piece, the right swing piece and the lifting rod roughly form a Y-shaped structure. During drainage, the swing pieces of the left swing piece and the right swing piece swing downwards, so that the left swing piece, the right swing piece and the lifting rod are approximately of an umbrella-shaped structure to form a left-right balance vertical lifting structure of the lifting mechanism. The device has the advantages of low friction, labor saving and prolonged service life of products.

The invention provides a sprayer tank, and belongs to the technical field of sprayers. The sprayer tank solves the problem that an existing sprayer tank can not be stably held when used. The sprayer tank comprises a cylindrical tank body, the peripheral wall of the tank body is provided with two long-strip-shaped cavities in the circumferential direction, bases are connected in the cavities in a sliding mode in the length direction, pressing grooves are formed in the outer side faces of the bases, pressing pates are hinged in the pressing grooves, and positioning pieces are arranged between the pressing plates and the tank and can fix the bases when the pressing plates are pressed and get close to the bottom faces of the cavities. The sprayer tank can be more conveniently and more stably held, and the use comfort can be increased.

The invention discloses a sliding seat structure which comprises a sliding seat sleeve movably connected to a rod piece in a sleeving mode and a sliding seat body movably arranged on the sliding seat sleeve in a sleeving mode, and the sliding seat body is movably connected to the rod piece along with the sliding seat sleeve. The friction block assembly is connected between the sliding seat sleeve and the sliding seat body in an inserted mode, the sliding seat sleeve and the sliding seat body are pressed at the same time, the friction block assembly is detachably attached to the rod piece through the sliding seat sleeve or the sliding body, the sliding seat sleeve and the rod piece are movably and fixedly connected together, and operation can be achieved by pressing the sliding seat sleeve and the sliding seat body at the same time. Operation is simple and the structure is reasonable; rolling displacement is converted into pressing displacement, a pressing force arm is short, pressing is labor-saving, and operation is easy.

The invention discloses a hot-melt glue gun, which comprises an outer casing; an inner rotating cylinder is rotatably connected to the outer casing; a plurality of rubber hoses are movably installed in the inner rotating cylinder; the front end of the rubber hose is fixedly connected with a glue outlet cone; A guide plate is formed; a guide chute is formed on the guide plate; a one-way transmission shaft is connected to the rotation in the outer shell; a drive plate is slidingly connected to the inner shell; a through groove is formed on the inner wall of the rubber hose; a switching gear is connected to the outer shell; the lower part of the outer shell slides A switching board is connected; a linkage plate is formed on the top of the switching board; a heating plate is set on the linkage board; when the switching board is at the front limit position, the one-way transmission shaft rotates to make the bottom glue stick advance; when the switching board is at the rear During the limit position, the rotation of the one-way transmission shaft makes the inner rotating cylinder rotate. The invention can heat glue sticks for sticking; can install and accommodate glue sticks of various colors; the glue outlet cone head can move back and forth, is simple and convenient to use, and prevents glue head pollution.

The invention relates to the technical field of medical instruments, and discloses an anti-stabbing protection device for penicillin bottle, which comprises a handle, an adjustable buckle, a penicillin bottle clamping mechanism and an anti-stabbing fin, the handle comprises a left handle and a right handle; the anti-stabbing fin comprises a left fin and a right fin, one end of the left fin and oneend of the right fin are integrally connected with the left handle and the right handle respectively, the other end of the left fin and the other end of the right fin are connected, an arc-shaped hole used for sleeving a penicillin bottle cap is formed between the left fin and the right fin, and the penicillin bottle clamping mechanism used for clamping the penicillin bottle is arranged on the arc-shaped hole. The device is mounted at the bottleneck of the penicillin bottle, is simple to mount and convenient to operate, can effectively prevent a dispensing needle from being accidentally stabbed by medical staff during dispensing, and avoids infection.

The invention discloses a rubber mat die-cutting device, and relates to the technical field of rubber mat machining. The rubber mat die-cutting device comprises a tubular die-cutting rule. A pressing mechanism is arranged on the lower part of the die-cutting rule, and a power mechanism is arranged on the upper part of the die-cutting rule. The pressing mechanism comprises a pressing block slidably sleeves the lower side of the outer part of the die-cutting rule and an adjusting threaded sleeve connected to the outer part of the die-cutting rule in a threaded mode. The adjusting threaded sleeve is arranged above the pressing block; a lantern ring is rotatably connected to the lower end of the adjusting threaded sleeve; the lantern ring sleeves the die-cutting rule; a pressing spring sleeves the die-cutting rule; the pressing block is connected with the lantern ring through a pressing spring; pressure scales are arranged on the lower part of the outer wall of the die-cutting rule; the power mechanism comprises a packaging shell arranged above the die-cutting rule and a chuck rotationally connected to the lower part of the packaging shell; and the chuck is clamped and fixed with the upper end of the die-cutting rule. The rubber mat die-cutting device has the beneficial effect that the precision of a die-cut rubber mat can be improved.

The invention discloses a supporting structure for a subway foundation pit. The supporting structure structurally comprises an adjusting bracket, a hydraulic cylinder connecting rod, a pushing column,a cross beam, a supporting plate, fillers and a fixed base, wherein a hydraulic device in the adjusting bracket and the rear end of the hydraulic cylinder connecting rod are nested with each other; the front end of the pushing column is welded and fixed into a middle groove of the cross beam; the cross beam is horizontally fixed to the rear end of the supporting plate; the supporting plate is tightly attached to the fillers; and the top of the fixed base is in interference fit with a bolt at the bottom of the adjusting bracket. According to the supporting structure for the subway foundation pit, the foundation pit is protected by using a hydraulic device as a supporting base; and meanwhile, an outer shell is used for protecting the hydraulic device, so that the service life can be prolonged, and the stability is greatly enhanced.