29results about How to "Close reliable" patented technology

The invention belongs to the technical field of steam heating, and discloses a self-recovery liquid level control valve which comprises an end cover assembly, a valve body, a valve element assembly, a middle auxiliary plate and an air cylinder assembly, the air cylinder assembly is installed on the end cover assembly, an air cylinder piston rod is connected with a valve rod, and the air cylinder assembly does not participate in control under the normal condition. Liquid flows in from the valve inlet, the valve is initially in a closed state, the volume of the liquid is increased, the liquid level rises, buoyancy borne by the valve element is increased, and the valve element is opened when the buoyancy is larger than valve closing pressure. When the valve is opened, liquid is discharged from the outlet, the liquid level of the liquid is continuously reduced, the valve cannot be closed immediately when the liquid flows out, and the valve is closed until the liquid level is reduced to a certain height; an upper liquid level sensor and a lower liquid level sensor are installed in the valve, the valve is not closed when the liquid level is lower than a lower limit, the air cylinder forcibly closes the valve, the valve is not opened when the liquid level is higher than an upper limit, the air cylinder forcibly opens the valve, and opening and closing of the valve are fed back by a proximity switch on the air cylinder assembly.

The utility model discloses a flange type butterfly valve which is mainly composed of a valve body, a flange plate, a valve rod, a butterfly plate and an opening and closing mechanism, the opening and closing mechanism comprises a shaft seat, a shell, a worm, a driving bevel gear, a worm gear, a driven bevel gear, a spline shaft, a clutch wheel and the like, the spline shaft is fixedly sleeved on the valve rod, and the clutch wheel is arranged on the spline shaft in a sliding mode. The clutch wheel can be meshed with the worm gear or the driven bevel gear, so that the valve rod is matched with different gears, and the requirements for quick opening and closing and fine adjustment are met. In the using process, torsion is increased by rotating the hand wheel, driving the worm or driving the bevel gear, meshing transmission of the worm and the worm gear, the valve closing device is suitable for the situation that a valve needs to be closed with large force, meanwhile, the driving bevel gear and the driven bevel gear are in meshing transmission, another transmission mode is provided, and operation is convenient. Due to the design of the clutch wheel, the valve rod is allowed to be matched with different gears, the transmission modes are flexibly switched, and different operation requirements are met.

The utility model relates to a kind of electric protection devices of refining furnace door, including refining furnace and furnace door, furnace door is vertical hinged door, further including detection mechanism and the electric push rod of driving furnace door switch, the detection mechanism includes the mounting plate of being fixedly connected in the outside of furnace door, the top rod of being slidably connected on mounting plate along furnace door switch direction and the trigger rod of being horizontally slidably connected on mounting plate, one end of the trigger rod is drivingly connected with top rod, and the other end of trigger rod is equipped with the microswitch of being fixedly connected on mounting plate, the utility model drives furnace door switch by electric push rod, realizes the automation of furnace door operation, specially equipped with detection mechanism, can feedback closed state when furnace door is closed, greatly improve state visibility and operation safety, system is also integrated cooling waterway structure, the working temperature of furnace door and electric actuator is effectively reduced by circulating cooling water in internal water tank and transition water tank, significantly reduce the thermal damage of high temperature to electric push rod and microswitch, prolong service life.

The invention relates to a valve (1) having a valve stem and a closing member (3) arranged on the valve stem for closing a valve opening (4), the closing member (3) being displaceable between a closed position and a maximum open position by means of the valve stem only linearly in a direction parallel to a longitudinal extension of the valve stem, and having a valve drive (7) which drives the closing member (3) in the direction parallel to the longitudinal extension of the valve stem. The invention relates to a valve drive (7) having a manually actuatable handle (8), the valve drive (7) having a valve drive housing (9) and at least one lever pair (10), each lever pair (10) having a first lever (11) and a second lever (12).

The utility model discloses a kind of key switch machine circuit and printer based on bistable circuit, wherein, key switch machine circuit based on bistable circuit, including power supply conversion unit, self-locking circuit and button, bistable circuit;The enable end of power supply conversion unit is connected by self-locking circuit and button, bistable circuit;Power supply conversion unit is used to convert input power supply into working power supply, and its enable control end is used to control power output;Self-locking circuit is used to pull low the enable end of power supply conversion unit after button is pressed and maintain low level, realize the self-locking of power output;Bistable circuit is used to change output state when button is pressed again, cut off self-locking circuit, so that the enable end of power supply conversion unit restores high level, to close power output.The utility model discloses the key switch machine circuit based on bistable circuit of the utility model, using single self-resetting button can complete the opening and closing of power supply, and, circuit response is stable, operation logic is clear.

The invention discloses a wafer butterfly check valve, which belongs to the field of valves and comprises a valve body, a valve rod perpendicular to the axis of the valve body is arranged in the valve body through a valve seat, a valve plate mechanism capable of rotating around the valve rod is arranged on the valve rod, and the valve plate mechanism comprises a valve clack rotatably mounted on the valve rod. A sealing assembly matched with the valve seat to seal the valve body is detachably installed on the valve clack, a gasket matched with the sealing assembly and a pressure detection mechanism used for monitoring the pressure of the valve clack are arranged on the valve seat, and the sealing assembly comprises a positioning plate arranged on the valve clack through an installation groove. And a connecting rod penetrating through the valve clack is arranged at the top of the positioning plate. According to the wafer butterfly check valve, when the sealing surface is abraded or damaged, the wafer butterfly check valve can be conveniently detached and replaced with a new assembly, the whole valve does not need to be replaced, the maintenance cost is greatly reduced, the maintenance time is greatly shortened, and the maintainability of the valve is improved.

This invention relates to protection for a driver circuit used to operate a semiconductor switch. For this purpose, the voltage drop across the series resistor between the driver circuit and the control connection terminal of the semiconductor switch is evaluated. If the voltage drop across the series resistor exceeds a predetermined threshold and remains above that threshold for at least a predetermined duration, the driver circuit for the semiconductor switch is then deactivated.

The present invention relates to the technical field of circuit breakers, and specifically to a cable support for conductive connection, comprising a support shell, a static contact, a moving contact, an insulating pull rod and an elastic connection component, wherein an upper outlet terminal is provided at the upper end of the support shell, a lower outlet terminal is provided at one side of the lower part of the support shell, and a vacuum arc extinguishing chamber is fixedly provided inside the support shell. The present invention is provided with an elastic connection component, when opening the switch, the elastic connection component gradually accumulates force, and after the elastic connection component accumulates force to a certain extent, the moving contact accelerates away from the static contact, so that the opening speed can be faster and the arc extinguishing ability can be stronger. When closing the switch, when the distance between the moving contact and the static contact reaches a preset distance, the elastic connection component quickly reduces the moving speed of the moving contact, so that the static contact and the moving contact can be closed stably and reliably, preventing the moving contact and the static contact from colliding and wearing, and preventing the moving contact and the static contact from vibrating at high speed when the moving contact and the static contact collide rigidly.

The utility model belongs to the technical field of packaging mechanical equipment, and relates to a weighing hopper structure which comprises a weighing cylinder and a discharger arranged at the top of the weighing cylinder in a matched mode, and a discharger driving motor is installed on one side of the discharger so as to drive a discharger discharging valve to rotate and control the discharging end of the lower portion of the discharger to be opened and closed. A baffle is arranged on the top of the weighing cylinder corresponding to the closed side of the discharging valve of the discharger, a clamping groove in the lower portion of the baffle is clamped on a frame plate on the top of the discharger and fixed through a bolt, and the upper portion of the baffle is provided with a folding portion so that when the discharging valve of the discharger is closed, materials blocked by the discharging valve of the discharger can fall into the weighing cylinder after being folded. According to the hopper structure, in the closing process of the discharging valve, materials can be effectively collected, and the materials are prevented from splashing into a workshop.

The invention provides a contact structure and a load switch, and relates to the technical field of low-voltage electrical appliances, the contact structure comprises a first moving contact and a second moving contact which are oppositely arranged, and at least one end of the first moving contact and at least one end of the second moving contact form a clamping space for clamping a first static contact. The first moving contact and the second moving contact are arranged in a non-parallel manner. A clamping type contact structure is adopted, the current directions of the adjacent movable contact pieces of the clamping type contact are the same, when short-circuit current exists, mutual attraction acting force is shown, the contact can be tightly pressed, and therefore the anti-short-circuit performance of a product is improved; and the first moving contact and the second moving contact are arranged in a non-parallel manner, so that friction force during closing of the contacts can be reduced, and reliable closing and opening actions of a product are ensured.

The invention provides a quick closing mechanism and a circuit breaker, and relates to the technical field of low-voltage electric appliances. The quick closing mechanism comprises a shell, a handle rotationally arranged in the shell, a contact seat and a quick closing piece, the quick closing piece is in linkage with the handle and the contact seat, the handle is used for driving the contact seat to rotate in the closing direction, and the quick closing piece is used for enabling the contact seat to rotate in an accelerated mode in the closing process so as to achieve quick closing. According to the quick closing mechanism, the quick closing piece acts on the contact seat in the rotating closing process of the handle, so that the contact seat rotates in an accelerated manner, and quick closing is realized. The arrangement of the quick closing piece enables the closing speed of the moving contact and the static contact not to be affected by manual operation, closing is more reliable, safety is higher, abrasion of the contacts can be reduced, the service life is prolonged, and therefore product performance is improved.

The invention belongs to the technical field of petrochemical engineering, and particularly relates to a temperature reducing device, an anti-surge system and a compressor. The nozzle body is provided with a containing cavity and a flow guide channel communicated with the containing cavity, the end, away from the flow guide channel, of the containing cavity is provided with an opening, and the end, away from the containing cavity, of the flow guide channel is communicated with a process refrigerant pipeline; the rotational flow valve element is arranged in the opening in a penetrating mode and arranged in the containing cavity in a sliding mode, and the rotational flow valve element can be switched between a first position and a second position; the valve rod penetrates through the valve seat and is connected with the rotational flow valve core; the adjusting piece is located outside the containing cavity and movably connected with the end, away from the rotational flow valve element, of the valve rod. The elastic piece is located outside the containing cavity and arranged on the valve rod in a sleeving mode, and the two ends of the elastic piece abut against the adjusting piece and the nozzle body respectively. According to the temperature reduction device, the anti-surge system and the compressor, efficient and fine atomization and refrigeration effects can be guaranteed, and the heat exchange efficiency is improved.

A storage structure and a refrigerator. The storage structure (43) for a refrigeration device comprises: a cabinet assembly (10) having an open end (13); a cabinet cover (20) arranged at the open end (13) of the cabinet assembly (10) and movable between a closed position and a maximum open position relative to the open end (13); a return drive assembly (30) operably connected with the cabinet assembly (10) and the cabinet cover (20) and configured to apply a driving force to the cabinet cover (20) to enable the cabinet cover (20) to automatically return when the cabinet cover (20) moves to a preset stroke position towards the closed position under the action of an external force. The preset stroke position is between the closed position and the maximum open position.

The utility model provides a vehicle door anti-pinch mechanism and a ferry vehicle, and relates to the technical field of transportation. The car door anti-pinch mechanism comprises a driving assembly, an anti-pinch assembly and an anti-pinch failure assembly, the driving assembly comprises a driving piece, and the driving piece is connected to a car door, can drive the car door to move and is used for opening and closing the car door; the anti-pinch assembly is configured to control the vehicle door to be opened when the vehicle door makes contact with an obstacle. The anti-pinch failure assembly comprises a moving part, a first induction part and a first detection part, the moving part is connected to the end, away from the automobile door, of the driving part, the driving part can drive the moving part to move, the first induction part is connected to at least one of the driving part and the moving part, and the first detection part is used for detecting the position of the first induction part. The induction points are additionally arranged on the moving part, the first detection part detects the first induction part which linearly reciprocates along with the moving part, the detection process is stable, fluctuation is not prone to occurring, the anti-pinch distance is effectively shortened, and debugging is easy and convenient.

The invention relates to a component (28) having a water-binder mixture (2) comprising water and a hydraulic binder and a print head (1) for controlled output of the water-binder mixture, the print head having a supply channel (3) for supplying the water-binder mixture, an outlet (4) fluidically connectable to the supply channel and a valve (5), by means of which the outlet can be opened and closed in a controlled manner, whereby a predetermined dose (49) of the water-binder mixture can be output through the outlet, the outlet having a diameter (20) between 0.5 and 2.0 mm, preferably: the hydraulic binder is selected from the group consisting of Portland cement, calcium aluminate cement, calcium sulfoaluminate cement and mixtures thereof, and / or the water-binder mixture comprises at least one additive, preferably a flow agent. The invention also relates to the use of the component, a method for outputting a water-binder mixture by means of the component, a 3D printing device, and a method for manufacturing a 3D component by means of a 3D printing device.

A manual closing structure of a magnetic control type circuit breaker comprises a support. The electromagnetic mechanism comprises a driving rod; the manual closing assembly comprises an operation shaft, a push rod and a sliding part, the sliding part is arranged on the support in a sliding mode in the closing direction and can be switched from the first position to the second position, the sliding part and the driving rod are arranged correspondingly, the operation shaft rotates around a third rotation center c, the push rod is connected with the operation shaft, and the push rod can rotate along with the operation shaft; and the push rod drives the sliding piece to push the driving rod to move towards the closing direction. A magnetic control type circuit breaker comprises a rotating shaft system and a manual closing structure. The invention relates to the field of low-voltage electric appliances, in particular to a manual switching-on structure of a magnetic control type circuit breaker and the magnetic control type circuit breaker, switching-on of the circuit breaker can be achieved only by rotating an operating shaft without additionally providing an external power source, the operating shaft and a sliding part are in transmission through a push rod, rotation is converted into linear sliding, and the linear sliding is output to a driving rod. Manual rotation operation is facilitated, and reliable and stable manual closing can be realized.

The utility model relates to an emergency system capable of closing a water delivery valve without power, which comprises an oil pump motor group, an electromagnetic directional valve, an overflow valve, a water delivery valve oil cylinder, an oil tank, an emergency operation loop and a hydraulic pipeline communicated with each component, and an electromagnetic valve group is arranged between a rod cavity and a rodless cavity of the water delivery valve oil cylinder. The electromagnetic valve group comprises at least two electromagnetic valves which are connected in parallel, an emergency operation loop hard wiring, and a corresponding operation button is arranged at a position convenient to operate. When an electrical fault or a hydraulic fault occurs, the electromagnetic valve group can be opened, and the rod cavity and the rodless cavity of the oil cylinder are communicated, so that the water delivery valve is closed under the dead weight. And when the electromagnetic valve group is not electrified, the hydraulic system is not influenced to normally realize valve opening, valve closing and middle position keeping. Each electromagnetic valve in the electromagnetic valve group can be independently opened or closed, so that the closing speed of the valve can be controlled according to the electrified quantity of the electromagnetic valves, the impact caused by self-weight valve closing is reduced as much as possible, and the damage of emergency operation to a mechanical structure and a hydraulic structure is reduced.

This invention discloses a control system for train doors, comprising a door controller, a permanent magnet synchronous motor, and door control signals. The door controller includes an EMI circuit, a power supply module, a safety circuit, an input port circuit, a CPU1, a motor drive module, and a current detection module. The permanent magnet synchronous motor includes motor windings, a magnetic encoder detection magnet, and a magnetic encoder. The magnetic encoder internally includes a magnetic encoder chip, a CPU2, and a CAN interface chip. The door control signals include an open signal, a close signal, a lock-in signal, an emergency unlock signal, a zero-speed signal, and an enable signal. The magnetic encoder significantly improves the motor's control accuracy and solves the accuracy and interference issues of Hall effect sensors. Through the FOC dead-zone compensation control algorithm, low-speed, high-torque operation is achieved, solving problems such as unstable door operation under special conditions, anti-pinch during opening and closing, and unreliable door closing. This improves door control performance, reduces vehicle operation risks, and ensures reliable vehicle operation.

The present invention relates to the field of railway transportation technology, and in particular to a locking device and a railway freight car. The locking device comprises: a support; two locking arms, which are rotatably connected to the two sides of the support, and two opposite locking holes are provided on the two locking arms, and the two locking arms can be relatively opened or closed; a driving block, which is fixed on the telescopic part of the driving mechanism, and the driving block can drive the two locking arms to open under the drive of the telescopic part; a reset member, which is used to provide the two locking arms with an elastic restoring force to close the two locking arms; and a locking pin, which is arranged on the telescopic part, and the locking pin can slide a preset distance relative to the telescopic part along the telescopic direction of the telescopic part, and the locking pin is used to connect with the driving lever, and when the telescopic part retracts, the two ends of the locking pin can be respectively inserted into the two locking holes. By arranging the locking arm and the locking pin on the driving mechanism, when the locking pin is inserted into the locking hole on the locking arm, the locking arm and the locking pin can be relatively locked, so that the driving lever is locked relative to the cargo compartment, and the top cover is ensured to be reliably closed.

The invention belongs to the technical field of sand prevention of underground operation machinery, and discloses a sliding sleeve opening and closing tool and application. The sliding sleeve opening and closing tool is structurally characterized in that an upper connector and a lower connector are in threaded connection through a set screw, a blocking sleeve is in threaded connection with the upper connector, and a bilateral gripper is provided with a groove through the blocking sleeve and a condom gland; a cylindrical spiral compression spring is placed in the groove, a condom is in threaded connection with the upper connector, a shear pin is in threaded connection with the upper connector, a groove is formed in the tail end of the upper connector, an O-shaped sealing ring is arranged in the groove, and sealing of the upper connector and the lower connector is guaranteed. The sliding sleeve can be reliably opened or closed; opening and closing of the sliding sleeve can be verified; the sheath can be opened or closed again by repeatedly lifting and placing the sliding sleeve switch tool when the sheath is opened or closed by mistake due to misoperation; the sliding sleeve is provided with a safety connector mechanism and can be forcibly released.

The application discloses a double-cylinder furnace tube equipment with good air tightness, and relates to the technical field of furnace tubes, which comprises a shell, one end of the shell is fixedly connected with a base, one end of the base is fixedly connected with a support column, the inside of the base is fixedly connected with a pressure plate, the bottom of the pressure plate is fixedly connected with an elastic plate, the inside of the base is provided with a groove, and the middle of the groove is fixedly connected with a buffer spring. The heat insulation layer, the buckle, the fixing block, the adsorption layer, the adsorption element, the separation layer and the separation hole are matched, the separation layer is provided with the separation hole in the middle, the granular dust can be adsorbed to the adsorption element in the adsorption layer, the problem that the furnace tube equipment is easy to enter the granular dust during work, the furnace tube equipment is blocked and the efficiency is reduced, and the service life of the furnace tube equipment is affected is solved, and the effect that the granular dust in the furnace tube can be adsorbed is achieved.

A closure, particularly for construction and technological opening closures, operates on the principle of a pivoting rocker arm mounted on the underside of the cover of the closure hole. The functional part of the rocker arm, when the cover is closed, rests on the opposite element, which is anchored in the closure hole. The rocker arm is pivotally fixed to a pin that is anchored to the underside of the cover by means of supports. The axis of the pin on which the rocker arm is mounted can be either parallel or perpendicular to the longitudinal axis of the closure hole. The rocker arm and its lug are balanced about the axis so that the closure is held in the closed position.

The invention relates to the technical field of valves, in particular to a power-level two-way hydraulic control main valve which comprises a main valve body, a valve sleeve is arranged in the main valve body, a valve element is arranged in the valve sleeve, the valve element is connected with a two-way hydraulic control device, the two-way hydraulic control device controls the valve element to act, the valve is controlled through high-pressure oil, and the valve is stable in state and good in anti-seismic effect. The action speed of the valve can be controlled, the valve is driven to act through high-pressure oil under the small driving power of the electromagnetic valve, then the driving force of the valve is increased, and the corresponding speed of the valve is increased.

The invention discloses a self-discharging type liquid injection needle valve, and belongs to the technical field of lithium battery liquid injection. The self-discharging type liquid injection needle valve solves the technical problems that when an existing self-discharging type liquid injection needle valve is in a standby state, a flow channel is prone to crystallization, and sealing is not tight due to plug eccentricity. The self-discharging type liquid injection needle valve comprises a valve body assembly, a valve port assembly, a driving assembly, a diaphragm assembly and a first elastic reset piece. The diaphragm assembly is used for isolating the flow channel from the driving assembly, and a valve element piece of the diaphragm assembly is matched with the valve port assembly to control the liquid injection port. The driving assembly and the diaphragm assembly are in disconnected connection, and selective transmission of driving force is achieved. The first elastic reset piece applies elastic force for closing the liquid injection opening to the diaphragm assembly. The driving assembly and the diaphragm assembly are arranged to be of a disconnected structure, automatic closing is achieved through the elastic reset piece, runner crystallization is effectively prevented, the leakage problem caused by assembly eccentricity is solved, and the diaphragm valve has the advantages of being reliable in sealing and low in maintenance cost.

The invention provides a fault protection system and method for an MOPA structure fiber laser. Wherein the system comprises: a primary seed source for providing the seed light to an amplification stage; the standby seed source is used for providing the seed light for the amplification stage when the main seed source is monitored to be abnormal; the monitoring module is used for monitoring the working state of the main seed source in real time, and generating a fault trigger signal when an abnormality is monitored; the switching module is used for switching the source of the seed light received by the amplification stage from the output of a main seed source to the output of a standby seed source within a preset response time after receiving the fault trigger signal; and the protection module is used for sequentially closing the amplification stage and the standby seed source according to a preset sequence after the standby seed source takes over. According to the fault protection system disclosed by the invention, the light emitting state of the standby seed source is switched at a microsecond magnitude, so that the optical fiber damage caused by the fault of the seed source in the MOPA structure optical fiber laser system is avoided, the maintainability is improved, and the maintenance time and the maintenance cost are remarkably reduced.

The present application relates to an energy storage system. The energy storage system includes a housing, a detection component, an air intake fan, and an air exhaust fan. The housing is provided with an air inlet and an air outlet. The detection component is coupled to the housing and is configured to detect a concentration of combustible gas within the housing. The air intake fan and the air exhaust fan are both coupled to the housing. The air intake fan drives external airflow to enter the housing through the air inlet, and the air exhaust fan drives airflow within the housing to exit the housing through the air outlet. Both the air intake fan and the air exhaust fan are configured to start up when the concentration of combustible gas reaches or exceeds a minimum value of a specified range. The energy storage system provided in this application can improve the discharge efficiency of combustible gas.

The invention relates to an isolating switch system, an energy storage valve sub-module and an energy storage system, an isolating switch device is provided with an opening switch and more than two opening coils for executing an opening function, the opening switch is respectively connected with a first target isolating component and a second target isolating component, and each opening coil is respectively connected with a driving device. Under the condition that the driving device detects that the opening condition is met, the driving device acts, connection between each opening coil and the power supply is conducted, and the opening coils are controlled to be powered on. At the moment, the opening coil in the normal state is electrified, and after at least one opening coil is successfully opened to enable the opening switch to act, the connection between the first target isolation component and the second target isolation component is disconnected. According to the scheme, the isolating switch device is provided with a plurality of opening coils, even if part of the opening coils break down, electrical isolation of the first target isolating component and the second target isolating component cannot be affected, and the isolating switch device has high opening reliability.

The utility model discloses a transmission device of a medium-voltage switch mechanism, which comprises a mounting plate, an operating shaft, a flywheel shaft, a limiting rod, an output shaft, a spring mounting seat, a spring assembly and a pawl assembly which are mutually combined for use to play a role, a larger mechanism output torque is obtained under the condition of not changing the wire diameter specification of a spring by optimally designing a spring force release angle, and the reliability of the mechanism is improved. A pawl assembly is additionally arranged to ensure that an output rotating shaft and a switch blade do not rotate along with the mechanism when the mechanism is switched on, namely the blade is not stressed, so that arc discharge hazards caused by slow switching on of the blade are avoided, and the matching angle of a notch of an operation cam plate and a notch of an output cam plate and an impact column is over-dead-point design. The spring force release of the spring assembly is provided with a section of idle stroke so as to obtain high initial kinetic energy.

The present invention discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises: a face frame, a switch door, a connecting member and a driving assembly. The face frame is provided with a through hole spaced apart from an air outlet. The connecting member comprises a first plate body and a second plate body. The first plate body is provided on the inner side of the face frame, the second plate body is fixed on the first plate body, and the outer end of the second plate body extends out of the through hole and is connected to the switch door. The driving assembly is connected to the first plate body to drive the second plate body to reciprocate along the extension track of the through hole. According to the air conditioner indoor unit of the present invention, by providing a through hole on the face frame and connecting the driving assembly and the switch door by using the first plate body and the second plate body fixedly connected, the connection between the switch door and the driving assembly is facilitated. Moreover, the second plate body drives the switch door to move through the through hole, thereby reducing the movement amplitude of the switch door, making the switch door closer to the face frame when moving, and improving the compactness of the structure of the air conditioner indoor unit.