46results about How to "Convenient card connection" patented technology

The utility model relates to the technical field of waste gas emission equipment for laboratories, in particular to concealed waste gas emission equipment for laboratories. According to the concealed waste gas emission equipment for the laboratory, the technical problem that an adsorption unit of a waste gas emission device for the laboratory in the prior art is inconvenient to replace is solved. The utility model discloses hidden waste gas emission equipment for a laboratory. The hidden waste gas emission equipment comprises an exhaust pipeline, the adsorption block is mounted on the filtering assembly; the fan is provided with an insertion column, the filter assembly is provided with an insertion cylinder, and the insertion column is matched with the insertion cylinder. And the adsorption block is mounted on the mounting disc of the insertion cylinder. When the adsorption block needs to be replaced, the filtering assembly can be conveniently pulled out of the exhaust pipeline, the position of the filtering assembly is positioned through the insertion column, and the adsorption block leaves the exhaust pipeline after the filtering assembly is pulled out, so that the adsorption block can be conveniently replaced, the filtering assembly is inserted back into the exhaust pipeline after replacement is completed, and the operation is very convenient.

This utility model discloses a storage box assembly for a refrigerator, including a first box body with a first bottom wall and a first side wall; N second box bodies, each with a second bottom wall and a second side wall, the second bottom wall having a first limiting portion; the sum of the outer lengths of the N second box bodies is less than or equal to the inner length of the first box body, the outer width of the second box body is less than or equal to the inner width of the first box body, the outer length of the second box body is greater than the inner width of the first box body, and the length of the first limiting portion is less than or equal to the inner width of the first box body; in a first combination mode, the second box bodies are embedded in the first box body; in a second combination mode, the second box bodies are engaged with the opening end of the first box body through the first limiting portion. In the first combination mode, the second box bodies are embedded in the first box body, reducing the space occupied during transportation and lowering transportation costs; in the second combination mode, the second box bodies are engaged with the opening end of the first box body, facilitating adaptation to the internal space of the refrigerator and avoiding waste of internal space.

The utility model discloses building wall structure of reducing engineering cost belongs to building wall field. Building wall structure of reducing engineering cost, include: wall body still include: a plurality of slot, open in wall body's lower extreme, bottom plate, set up wall body's downside, a plurality of limit tube, fixedly set up on bottom plate, with slot correspond, the utility model discloses need not when installing wall body to correct hole to each reinforcing bar, can reduce manpower input to a certain extent, and then effectively reduce installation cost.

A frame lamp assembly easy to install comprises a frame lamp body, a keel frame and a power source device, one side of the frame lamp body is a light-emitting face, the other side of the frame lamp body is an installation face, the installation face is detachably installed on the keel frame, the keel frame at least comprises a vertical plate, the vertical plate is provided with an installation protruding strip, and the installation protruding strip is provided with a light-emitting face. The power supply device is at least provided with an elastic buckle matched with the installation protruding strip. The power supply device is installed on the installation protruding strip of the keel frame through the elastic buckle, installation and disassembly efficiency is improved, more convenience is achieved, screws are prevented from being exposed, the overall attractiveness of the frame lamp assembly is improved, the requirement of the elastic buckle for the installation space is small, and installation is convenient.

The utility model discloses a methanol fuel liquid level sensor, and belongs to the technical field of liquid level sensors, the methanol fuel liquid level sensor comprises an accommodating part and a liquid level detection part, the accommodating part comprises an oil tank main body, one end of the oil tank main body is provided with a communicating vessel assembly, and the liquid level detection part is arranged on the inner side of the communicating vessel assembly; the liquid level detection component comprises a sensor component arranged on the inner side of the communicating vessel component, a physical liquid level component is arranged outside the communicating vessel component, and the physical liquid level component is matched with the sensor component. Through the arrangement of the physical liquid level assembly, a liquid level observation and measurement structure with the physical property can be achieved in cooperation with the sensor assembly, the remaining situation of fuel in the fuel tank can be obtained through the structure when a sensor fails or is damaged, and practicability is improved.

The utility model discloses a novel automobile door decoration strip which comprises a strip body, one end of the strip body is provided with a side edge fixedly connected with the strip body, the end, away from the side edge, of the strip body is fixedly connected with two connecting blocks, each connecting block is provided with a through hole in a penetrating mode, each through hole is provided with a locking screw, and the locking screws are fixedly connected with the strip body. The strip body and the side edge are fixedly connected with an L-shaped deformation piece together, the strip body and the side edge are fixedly connected with a fixing plate together, and the strip body and the side edge are made of the same material and are sequentially provided with an attractive layer, a protective layer, a buffer layer and a base layer from outside to inside. The L-shaped deformation piece, the fixing plate and the two connecting blocks are matched, so that the decoration strip and the automobile door can be fixed, and the connecting stability of the decoration strip and the automobile door is guaranteed; the decorative strip is provided with the attractive layer, the protective layer, the buffer layer and the base layer, so that the functions of wear resistance, attractiveness and protection can be considered, and the practicability is high.

The utility model discloses a double-layer co-extrusion MPP pipe, which belongs to the technical field of MPP pipes, and comprises a mounting assembly and a connecting assembly, the mounting assembly comprises a mounting plate, an MPP mounting pipe is mounted on the inner wall of the mounting plate, the connecting assembly comprises a connecting plate, an MPP connecting pipe is mounted on the inner wall of the connecting plate, and the MPP connecting pipe is mounted on the inner wall of the connecting plate. Annular triangular plates are mounted on the outer surface of the MPP mounting pipe and the outer surface of the MPP connecting pipe, through the arrangement of a positioning pipe, a sealing ring, a positioning groove, a connecting groove, a fixing pipe and a sealing gasket, people can conveniently and rapidly clamp the MPP mounting pipe and the MPP connecting pipe, the sealing effect of the joint of the MPP mounting pipe and the MPP connecting pipe can be better, and the MPP connecting pipe can be conveniently connected with the MPP mounting pipe. The MPP mounting pipe and the MPP connecting pipe can be more stable in the working process due to the arrangement of the positioning holes and the positioning rods, and people can disassemble and assemble the MPP mounting pipe and the MPP connecting pipe due to the arrangement of the connecting blocks, the connecting holes, the connecting screws, the lug plates and the threaded holes.

The utility model relates to the technical field of screen corbel connection, in particular to a connecting structure of a screen and a corbel, which comprises a screen body, a corbel body, two bolts and a table top, the screen body is provided with a mounting groove, the corbel body is internally provided with a mounting cavity, the interior of the mounting cavity is slidably connected with a bending rod, and the bending rod is connected with the table top. A clamping groove used for being connected with the bent rod is formed in the upper inner wall of the mounting groove. A mounting plate is fixedly connected to the interior of the mounting cavity, a sliding rod is connected to the mounting plate in a sliding mode, an arc-shaped block is fixedly connected to one end of the sliding rod, a transverse strip is fixedly connected to the bending rod, and a plurality of mounting holes used for being connected with the bolts are formed in the upper inner wall and the lower inner wall of the mounting cavity. According to the utility model, the phenomenon that the table board falls off due to the loss of support can be effectively avoided, the stability of the table board is higher, the firmness of the connection between the screen body and the support arm body is better, and the connection between the screen body and the support arm body is facilitated.

The utility model discloses a gluing device for a special printing machine, which comprises a conveying pipeline for conveying paint, the discharge end of the conveying pipeline is fixedly connected with a stabilizing plate, the front and back surfaces of the conveying pipeline are fixedly connected with sliding blocks, the sliding blocks are connected with a protective cover in a sliding manner, the protective cover is clamped with a small clamping plate and a large clamping plate, and the small clamping plate and the large clamping plate are fixedly connected with the stabilizing plate. The lower surface of the small clamping plate is fixedly connected with an inserting rod, and the lower surface of the protection cover is connected with a gluing head in a clamped mode. Through the conveying pipeline, the stabilizing plate and the gluing heads, normal conveying of paint is facilitated, through the arrangement of the small clamping plate and the large clamping plate, the upper portion of the protection cover is protected conveniently, meanwhile, the conveying pipeline is limited, and through the arrangement of the two gluing heads below the protection cover, the gluing efficiency is improved. According to the gluing head for the special printing machine, the gluing head at the end of the conveying pipeline can be conveniently and rapidly replaced, meanwhile, the limiting ring arranged at the top of the gluing head can be conveniently connected with the protection cover in a clamped mode, and therefore the gluing head for the special printing machine has the rapid replacement effect.

The utility model discloses a rail transit vehicle multi-axis vibration test clamp tool, and relates to the technical field of vehicle multi-axis vibration tests. The device comprises a vibration table. The driving assembly is pulled to compress the clamping assembly, so that clamping arrangement of the driving assembly is relieved, the driving assembly is rotated to drive the clamping assembly with one fixed end to move, when the clamping assembly moves, the clamping assembly can be attached to the inner side of the hub, and the hub can be clamped by the clamping assembly along with continuous movement of the clamping assembly. The hub is firmly fixed to the top end of the supporting assembly, then the driving assembly is loosened so that the clamping assembly can push the driving assembly to reset, the driving assembly can be clamped and fixed again, the vibration table is prevented from loosening in the working process, a vehicle is prevented from being disengaged from the vibration table in the vibration process, and the service life of the vehicle is prolonged. And the stability of the vehicle in the vibration experiment process is ensured.

The application provides a pressure reducing valve assembly, wherein a valve body comprises a limiting surface and a connecting part arranged in sequence along an axial direction, the connecting part is provided with a locking part movable along the axial direction; a variable diameter ring is located between the limiting surface and the connecting part, the variable diameter ring comprises a limiting part and a mounting part connected with each other, the limiting part is mounted on the connecting part, the mounting part comprises at least three variable diameter strips arranged in sequence along a circumferential direction of the connecting part, an outer diameter of any variable diameter strip gradually increases in a direction away from the locking part, a clamping strip for connecting with an external mounting part is connected, the clamping strip extends in a direction close to the limiting surface, and the mounting part has elasticity. When a mounting hole on a panel is smaller than a size of the mounting part of the pressure reducing valve, the pressure reducing valve assembly provided by the application extrudes the at least three variable diameter strips with elasticity to the inside to reduce the outer diameter of the mounting part, so that the mounting part of the pressure reducing valve is clamped in the mounting hole, and the effect that the pressure reducing valve is adapted to mounting holes with various sizes is achieved.

The utility model relates to the technical field of drill rod guide sleeve, concretely to a kind of drill rod guide sleeve device of anti-deviation positioning, including mounting ring, the top of mounting ring is provided with auxiliary structure, auxiliary structure includes mounting plate, the top of mounting plate is provided with guide rod, the outside of guide rod is provided with lifting ring, the inside of lifting ring is provided with guide hole, the inside of lifting ring is provided with mounting bracket, the inside of mounting bracket is provided with auxiliary cylinder, the inside of auxiliary cylinder is provided with limit block, the outside of auxiliary cylinder is provided with support bearing.The drill rod guide sleeve device of anti-deviation positioning, by adding mounting plate, play the role of fixed guide rod, by the cooperation of guide rod and guide hole, play the role of facilitating lifting ring up and down sliding, by the cooperation of mounting bracket and support bearing, play the role of facilitating auxiliary cylinder rotation by adding support bearing, play the role of reducing friction.

The utility model discloses a refractory brick, which belongs to the technical field of refractory bricks, and adopts the technical scheme that the refractory brick comprises a first brick body, a convex block is arranged on the front side of the first brick body, a second brick body is arranged on the front side of the first brick body, the surface of the convex block is clamped with the inner wall of the second brick body, and the first brick body comprises a base layer; a buffer layer is arranged on the surface of the base layer, a heat insulation layer is arranged on the surface of the buffer layer, a wear-resistant layer is arranged on the surface of the heat insulation layer, and an erosion-resistant layer is arranged on the surface of the wear-resistant layer, so that the problems that the mounting efficiency is low and the mounting precision is difficult to guarantee due to the lack of an effective positioning structure when existing refractory bricks are used are solved. Meanwhile, the problems that the brick body is easily damaged due to stress concentration in the actual use process, the structure of the brick body is easily and seriously damaged after the brick body is eroded by high-temperature chemical substances, the brick body is difficult to stably work for a long time under complex working conditions, and the service life is short are solved.

The utility model discloses a deep well casting device for a fixed furnace, and relates to the technical field of fixed furnace casting. The infrared liquid level detector comprises a well body, a position adjusting mechanism used in cooperation with the well body is arranged at the upper end of an inner cavity of the well body, an infrared liquid level detector body is detachably arranged at the bottom end of the position adjusting mechanism, and a fixing mechanism used in cooperation with the infrared liquid level detector body is arranged on the position adjusting mechanism. The fixing mechanism comprises a lantern ring and a side column, the lantern ring is fixedly connected with the position adjusting mechanism, a concave hole is formed in the outer wall of the lantern ring, a rotating shaft is rotationally inserted into the concave hole, and a rotating plate is fixedly connected to the tail end of the rotating shaft; through the arrangement and use of the fixing mechanism, convenience is provided for convenient rotation and reset of the rotating plate, so that convenience is provided for convenient rotation and reset of the clamping rod, convenience is provided for clamping connection and separation of the clamping rod and the arc-shaped groove, convenience is further provided for disassembly and assembly of the infrared liquid level detector body, and operation and use by a user are facilitated.

The utility model discloses a rail transit electricity testing clamp, rail transit electricity testing clamp includes: holding part, clamp subassembly and solution locking assembly, clamp subassembly includes base, drive shaft, and the first clamp and the second clamp of symmetrical setting in the both sides of base, first clamp, the second clamp is through drive shaft with base rotatory connection to be used for clamping steel rail. Solution locking assembly has the locking state of making clamp subassembly clamping steel rail and keeping locking and the unlocking state of making clamp subassembly with steel rail disengaging, solution locking assembly can switch back and forth between the unlocking state and the locking state. The utility model technical scheme is convenient with the steel rail joint, avoids falling when with the steel rail joint, promotes operation safety and efficiency.

This utility model discloses an improved termite monitoring device, relating to the field of termite monitoring technology. The device includes a main body, with a detachable electronic compartment at its top. The electronic compartment is detachably equipped with a cover mechanism and a sealing mechanism. The cover mechanism includes a compartment ring and an alignment rod. Anti-slip strips are fixedly connected to the outer wall of the compartment ring, and these strips are arranged in an array. A turntable is rotatably mounted on the inner side of the top of the compartment ring. The cover mechanism facilitates the rotation and reset of the turntable, thereby facilitating the rotation and reset of the L-shaped arc-shaped locking block. This, in turn, facilitates the engagement and misalignment of the L-shaped arc-shaped locking block and the arc-shaped baffle, and facilitates the insertion and separation of the alignment rod and the alignment hole. This also facilitates the disassembly and assembly of the compartment ring, and consequently, the opening and closing of the electronic compartment.

The utility model discloses a kind of super-thick prefabricated thermal insulation wallboard installation fixed components, including prefabricated GLC board and cast-in-place concrete beam, the lower portion of cast-in-place concrete beam is provided with embedded part, and the upper portion of prefabricated GLC board is connected with cast-in-place concrete beam by cast-in-place concrete beam bottom embedded part. The middle of the prefabricated GLC board is provided with thermal insulation layer, fixed screw rod is inserted into prefabricated GLC board from thermal insulation layer side, and the inner side of GLC board is provided with connecting piece, connecting piece is L-shaped, top and cast-in-place concrete beam bottom embedded part are connected, fixed screw rod is threaded through prefabricated GLC board and passes through connecting piece, and is fastened using nut. The super-thick prefabricated thermal insulation wallboard installation fixed component can realize the quick installation and fixation of super-thick prefabricated wallboard, is convenient and fast for construction, green and environmental protection, and is conducive to prefabricated wallboard installation quality control.

The utility model discloses a plug temperature measurement sensor, which relates to the field of temperature measurement sensors and comprises a main cylinder, a partition plate is movably connected in an inner cavity of the main cylinder, a main control panel is mounted at the top of the partition plate, a temperature measurement element is mounted at the position of the main control panel, a signal antenna is mounted on the side edge of the top of the partition plate, and the signal antenna is electrically connected with the temperature measurement element. The bottom of the main cylinder is movably connected with an outer cylinder, reset blocks are symmetrically installed on the tops of the two sides of the outer cylinder, a base is installed at the bottom of the outer cylinder, and distance adjusting assemblies are symmetrically installed at the two ends of the top of the base. According to the plug temperature measurement sensor of the utility model, through the arrangement of the main cylinder body, the plug temperature measurement sensor can be conveniently connected with a cable joint needing temperature measurement, temperature measurement work is performed based on the plug temperature measurement sensor, through the arrangement of the signal antenna, temperature measurement data of the temperature measurement element can be transmitted, and through the arrangement of the moisture-proof resin, a moisture-proof effect can be performed on the main cylinder body. Therefore, the overall service life can be prolonged.

The utility model provides a lifting column assembly of an electric lifting table, which belongs to the technical field of electric lifting tables and comprises a lifting assembly, a connecting block is arranged on the outer side of the lifting assembly, the connecting block is connected with a decorative cylinder, and the decorative cylinder comprises a first sealing edge connected to the upper end of the decorative cylinder and a second sealing edge connected to the lower end of the decorative cylinder. The lifting column is more attractive in appearance, meanwhile, the lifting assembly can be protected, the decoration barrel is not large in mass, the lifting column is light, transportation and installation are facilitated, the decoration barrel can be installed on site, damage caused by collision in the carrying process is avoided, through grooves are formed in the four corners of the decoration barrel, installation of the first sealing edge and the second sealing edge is facilitated, and connecting openings are formed between the through grooves. And clamping connection of the flange of the second sealing edge is facilitated.

This utility model relates to the field of punching machine technology and discloses a handheld punching machine with a protective structure. It includes a punching machine body, a handle fixedly mounted on the punching machine body, a punching head at the bottom of the punching machine body, and a mounting base fixedly mounted on the bottom wall of the punching machine body. The mounting base has a waste chamber at its bottom, a protective mechanism inside the mounting base, and a limit mechanism inside the mounting base. This handheld punching machine with a protective structure allows the fixed plate in the protective mechanism to be pressed at one end, causing the fixed plate to rotate around a rotating rod, opening the inner side of the mounting base for easy viewing. Simultaneously, the spring force of a torsion spring allows the rotating rod to rotate and reset the baffle on the outer wall of the fixed plate, thus shielding the interior of the mounting base and preventing debris from flying out.

The utility model provides a wet curtain structure, an air treatment device and a humidification device, and relates to the technical field of air treatment. The wet curtain structure can comprise the wet curtain body, the supporting assembly and the base, the first clamping piece is arranged at the supporting assembly, the second clamping piece is arranged at the supporting assembly, and the base and the supporting assembly are detachably connected through the first clamping piece and the second clamping piece, so that the base is conveniently detached from the supporting assembly; and therefore, the wet curtain body and the supporting assembly can be conveniently mounted and dismounted, and the wet curtain body can be conveniently cleaned and replaced.

The utility model provides a kind of insulation detection tool convenient to carry, it is related to detection tool technical field, including base body and the detection tool body being set to the top of base body, folding assembly is placed in the inner chamber of base body, folding assembly includes the first baffle slidingly connected in the inner wall of base body, both sides of the top of first baffle are fixedly connected with first fixed block, the side surface of first fixed block is fixedly connected with fixed plate, the side surface of base body is rotatably connected with fixed seat, by setting detection tool body, to be able to detect object, by setting base body, to be able to support detection tool body, by the first baffle of installation in the inner chamber of base body, to be able to conveniently carry detection tool body, by setting first fixed block, to be able to realize the clamping of first baffle and fixed seat, by the fixed seat rotatably connected in the side surface of base body, to be able to promote first baffle overturning.

The utility model discloses an automobile water pump impeller structure which comprises an impeller and further comprises a plastic part arranged on the impeller, and a plurality of limiting grooves are formed in the circumferential direction of the plastic part. Boss parts matched with the limiting grooves are arranged in the circumferential direction of the impeller, and second wedge-shaped parts are oppositely arranged on the limiting grooves. According to the automobile water pump impeller structure, when the impeller coincides with the plastic part, the impeller is clamped and matched with the limiting grooves through the boss parts arranged on the surface of the impeller, the fusion area of the impeller and the plastic part is increased, the opening of the limiting grooves is increased through the second wedge-shaped parts formed in the limiting grooves, and the service life of the impeller is prolonged. According to the device, through the boss part arranged on the surface of the impeller in the circumferential direction and the limiting groove formed in the plastic part, the fusion area and welding spots of the impeller and the plastic part in the ultrasonic welding process are increased, and therefore the overall tensile strength of the impeller and the plastic part after welding is improved.

The utility model discloses a pair of modularized intelligent glasses, which belongs to the technical field of intelligent glasses and comprises a glasses body, functional modules are detachably mounted on two sides of the glasses body and comprise an AR (Augmented Reality) module and an AI (Artificial Intelligence) module. The intelligent glasses can be used as common glasses of daily sunglasses or myopia glasses when no functional module is installed, can be additionally provided with an AR module to become AR glasses, or additionally provided with an AI module to become AI glasses, and can also be additionally provided with the AR module and the AI module to become multifunctional glasses, use is convenient, the comfort degree is higher, all the modules can be independently charged, and the intelligent glasses are convenient to use. And normal use of the glasses is not influenced.

This application relates to the field of polymerization reaction production equipment and discloses a large-scale industrial phthalic acid polymerization reaction production device, including a reaction tank and several connecting frames. A shielding cover is snapped onto the top of the reaction tank, and a motor is fixedly connected to the top of the shielding cover. The center of the motor and the center of the shielding cover are on the same straight line. An electro-hydraulic rod is fixedly installed on the top of each connecting frame, and a fixing bracket is fixedly connected to the surface of the electro-hydraulic rod. A pressure alarm is also fixedly installed on the surface of the electro-hydraulic rod. This application, by installing the connecting frames on the surface of the reaction tank, mounting the electro-hydraulic rod on the top of the connecting frames, and installing a pressure alarm on the surface of the electro-hydraulic rod, with one end of the electro-hydraulic rod connected to the surface of the shielding cover via the fixing bracket, allows for timely detection and alarm processing of the air pressure inside the electro-hydraulic rod when the shielding cover becomes loose due to excessive pressure during use of the reaction tank.

This utility model discloses an electrical instrument that is easy to disassemble and maintain, relating to the field of electrical instruments. It includes a mounting assembly and a meter body. The mounting assembly includes a mounting frame, a snap-fit ​​bracket, a lifting spring, a lifting plate, a pushing spring, and a pull rod. The left and right side walls of the mounting frame are provided with pull-out grooves, and the pull rod is located on the inner wall of the pull-out groove. This novel solution, through the combination of the mounting frame, snap-fit ​​bracket, and lifting spring, facilitates the installation and disassembly of the meter body, enabling subsequent maintenance work by personnel. Disassembly can be completed without disassembly tools, improving work efficiency. Furthermore, the combination of the mounting frame, limiting strip, and meter body allows for easy positioning and fixing of the meter body, preventing displacement and loosening, and enabling rapid installation and fixing of the meter body.

The utility model provides an adjusting mechanism used for cloth conveying and a dyeing machine, the adjusting mechanism used for cloth conveying comprises an adjusting assembly, an adjusting plate and at least one set of hinging assembly.The dyeing machine is internally provided with a cloth swinging barrel, the cloth swinging barrel is horizontally arranged at one end in a barrel body of the dyeing machine, and the adjusting assembly is installed below the cloth swinging barrel; the top end of the adjusting plate is connected with the adjusting assembly, a cloth guiding channel is arranged between the adjusting plate and the outer side wall in the barrel, the adjusting assembly is used for moving the upper end of the adjusting plate in the first direction, and the hinge assembly is installed on one side of the adjusting plate and used for installing the adjusting plate in the barrel in a hinged mode; cloth enters the cloth guide channel from the cloth swinging cylinder, the upper end of the adjusting plate is far away from the outer side wall in the cylinder to enlarge an inlet of the cloth guide channel, and the bottom end of the adjusting plate is close to the outer side wall in the cylinder to reduce an outlet of the cloth guide channel, so that the setting state of the cloth guide channel can be flexibly adjusted according to the running states of different pieces of cloth. The adaptability and the stability in the cloth conveying process are improved.

The utility model relates to a nozzle structure with good sealing performance. The utility model has the advantage of good sealing performance, and comprises a pipe body, the upper part of the pipe body is in threaded connection with a valve seat, the middle part of the valve seat is provided with a liquid inlet cavity, the middle part of the pipe body is provided with a flowing cavity communicated with the liquid inlet cavity, the lower part of the pipe body is provided with a liquid outlet cavity communicated with the flowing cavity, and the upper end of the liquid outlet cavity is communicated with a spray nozzle. A sealing ring is installed on the lower portion of the valve seat, a ball plug is arranged at the communication position of the liquid inlet cavity and the flowing cavity, a spring is arranged in the flowing cavity, the upper portion of the spring abuts against the ball plug, the lower portion of the spring abuts against the protruding seat, and the spraying opening is fixed to the lower portion of the protruding seat and communicated with the flowing cavity through the protruding seat. The protruding base is placed in the flowing cavity, and the ball plug pushes and extrudes the sealing ring through the spring.

The utility model relates to the technical field of inclined ladders, especially relates to a hidden inclined ladder, which comprises a vertical frame, the upper end of the vertical frame is slidably connected with a ladder section, the bottom end of the ladder section is rotatably connected with symmetrically arranged rollers, the upper end of the ladder section is rotatably connected with symmetrically arranged slide columns, the slide columns are slidably connected to the vertical frame, symmetrically arranged slide grooves are formed in the upper end of the vertical frame, the slide columns are slidably connected to the slide grooves, a fixing mechanism is arranged on the vertical frame and used in cooperation with the ladder section, and base one and base two are respectively arranged on the two sides of the ladder section, the fixing mechanism provides convenience for pulling and resetting, rotating and resetting of the inserted rod, thereby providing convenience for the clamping and separation of the special-shaped block and the clamping groove, further providing convenience for the insertion and separation of the inserted rod and the insertion hole and the locking and unlocking of the inserted rod, further providing convenience for the storage and expansion of the ladder section, and the utility model is convenient for single-person operation and has high practicability.