348results about How to "Improve installation convenience" patented technology

According to the double-cavity prefilled syringe with the equal-diameter channels and the prefilling method, firstly, a middle piston is installed through mechanical plugging, then sterile powder in a first medicament cavity is filled, and after a rubber gasket, a Luer lock adapter and a protective cap assembly are assembled, sterile powder is filled in the first medicament cavity in a pressing mode; the Ruhr lock adapter annular buckle is guided by the auxiliary conical surface to be fixed to the limiting groove, at the moment, the rubber gasket is pressed by the mechanical sealing structure, meanwhile, the protective cap assembly seals the Ruhr lock medicine outlet, and a cavity close to the medicine outlet is well sealed. Then the double-cavity pre-filling syringe is turned over, the solvent is filled from a flange inlet, filling of the second medicament cavity is completed, a push rod piston is installed through mechanical plug adding, and a cavity far away from a medicament outlet is well sealed. According to the invention, the two ends of the needle cylinder are adopted to realize pre-encapsulation administration, so that the administration residue or pollution can be avoided, and the rubber gasket, the Luer lock adapter and the protective cap assembly are matched to realize high-precision sealing.

The utility model discloses a water pump assembly, an indoor unit and a heating and ventilation system.The water pump assembly comprises a water pump box, a water pump and a vibration reduction part, the water pump box comprises a first box body and a second box body, the first box body and the second box body are connected and matched to define a water pumping cavity, the first box body is provided with a first fixing part, and the second box body is provided with a second fixing part; the water pump comprises a pump main body and a connecting foot, the pump main body is used for pumping water in the water pumping cavity, the connecting foot is connected to the outer side of the pump main body, and the vibration reduction piece is arranged on the connecting foot in a sleeving mode and located between the first fixing part and the second fixing part; and the first fixing part can be matched with the second fixing part to fix the vibration reduction piece, so that the pump main body is fixedly arranged in the water pumping cavity. According to the technical scheme, noise generated during operation of the water pump assembly can be reduced, and meanwhile, the pump body can be fixedly arranged in the water pumping cavity conveniently.

The present invention provides a high-pressure flow automatic control system, which belongs to the technical field of automatic flow control, and includes a connecting pipe, two external pipelines and a regulating device, both ends of the connecting pipe are fixedly connected with connecting pipes, the outer wall of the connecting pipe is installed with a mounting seat, the upper surface of the mounting seat is installed with a flow meter for detecting the water flow inside the connecting pipe, the outer wall of the connecting pipe is installed with a valve for controlling the water flow inside the connecting pipe, one side of the valve is installed with a valve stem for controlling the valve, the regulating device is located on the outer wall of the connecting pipe, and the regulating device includes an electric control box. The present invention realizes the regulation of water flow by automatically controlling the valve, dynamically adjusts the valve opening according to needs, and keeps the flow stable within the set range; the motor and other parts are protected and covered by a protective cover, which increases the service life of the parts inside the protective cover, and the protective cover can be conveniently opened and closed to maintain and repair the parts.

The utility model discloses a flame-retardant and aging-resistant artificial turf, which belongs to the field of flame-retardant and wear-resistant artificial turfs and comprises a turf component, the turf component comprises a first frame and a second frame, two sides of the first frame are fixedly connected with hair magic tapes, two sides of the second frame are fixedly connected with hook-and-loop fasteners, and the hook-and-loop fasteners are fixedly connected with the hook-and-loop fasteners. The first frame body and the second frame body are both internally provided with flame-retardant pads, the upper ends of the flame-retardant pads are connected with artificial grass sheets, the lower ends of the flame-retardant pads are connected with reinforcing pads, and the lower ends of the reinforcing pads are connected with bottom pads. Therefore, the use safety of the artificial turf is improved, the service life of the artificial turf is prolonged, meanwhile, the artificial turf can be quickly laid at any length, and the use convenience and universality of the artificial turf can be improved.

The invention discloses a cutter head buffering and oil supplementing overflow valve group, which belongs to the technical field of coal mine construction, and comprises an energy accumulator, a valve block and a pressure measuring joint, an oil duct R1-R2 and an oil duct L1-L2 are formed in the valve block, the oil duct R1-R2 comprises an oil port R1 and an oil port R2, the oil duct L1-L2 comprises an oil port L1 and an oil port L2, the oil port R2 and the oil port L2 are used for being connected with a main pump side oil way, and the oil port R1 and the oil port L1 are used for being directly installed on a motor oil port; the energy accumulator is connected with the valve block and used for releasing stored hydraulic oil when the system generates a negative pressure trend, the energy accumulator comprises a first branch communicated with the R1-R2 oil ducts and a second branch communicated with the L1-L2 oil ducts, a first one-way valve is arranged on the first branch, and a second one-way valve is arranged on the second branch; two oil ways are arranged between the R1-R2 oil ways and the L1-L2 oil ways, and a first overflow valve and a second overflow valve are arranged on the two oil ways respectively. According to the invention, the risk of damage to the closed hydraulic system caused by high-frequency impact of the cutter head hydraulic system of the hob type rock tunneling machine can be reduced.

The invention discloses a door lock which comprises a lock body, a main spring bolt, a driving gear, a driving seat and a grip seat are arranged on the lock body, the main spring bolt is in transmission connection with the driving gear, the grip seat is sleeved with a transmission gear meshed with the driving gear, and the driving seat is in sliding fit with the lock body. A driving motor, a first driven gear, a lifting gear, a damper and a second driven gear are arranged on the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the driving motor, a lifting groove is formed in the first driven gear, and a lifting boss inserted into the lifting groove is arranged on the lifting gear; matching teeth and a reset spring are arranged between the first driven gear and the second driven gear, and the damper is meshed with the lifting gear. A pressure spring is arranged between the lock body and the driving seat; an abutting flange is arranged on the peripheral wall of the grip base. The clutch device is simple in structure, rapid in clutch operation response, reliable in transmission structure use and good in use effect.

The utility model relates to the technical field of bus bar connection, and discloses a bus bar socket device, which comprises a plastic shell switch, the connecting plate is fixedly arranged on the inner bottom surface of the connecting groove; an adapter bus bar is arranged below the plastic shell switch, a bus bar socket is arranged on the side face of the plastic shell switch, and the top end of the bus bar socket extends into the connecting groove. The bus bar socket is electrically connected with the connecting plate through connecting bolts and comprises a top plate, side plates are arranged on the left side and the right side of the top plate, and the close faces of the top ends of the two side plates are fixedly connected with the two side faces of the top plate. Through the provided bus bar socket, after the bus bar expander is installed in the shell, the safety is improved; the internal space of the distribution box does not need to be increased, the size of the distribution box can be miniaturized, the cost can be reduced, and when the bus bar socket is installed on the adapter connecting bar, only the bus bar socket on the adapter bus bar is connected with the plastic shell switch, so that the safety and the convenience are improved.

The invention relates to the technical field of building construction, and discloses a deep foundation pit single-side formwork structure and a construction technology, and the deep foundation pit single-side formwork structure comprises a deep foundation pit body, a cement pouring slope poured on the deep foundation pit body, a formwork foundation poured on the outer surface of the deep foundation pit body, and a cement pouring formwork fixedly installed on the formwork foundation. And a plurality of positioning columns which are distributed at equal intervals are fixedly mounted on the outer surface of the cement pouring inclined plane. According to the deep foundation pit single-side formwork supporting structure and the construction technology, through the design of the bottom moving wheels, the position of the formwork supporting frame can be adjusted more flexibly in the installation process, the installation efficiency and convenience of the whole formwork supporting structure are improved, the first connecting steel frame and the second connecting steel frame in the formwork supporting assembly are connected through the connecting bolts and the limiting sleeves, assembling and disassembling are convenient, and the construction cost is reduced. And flexible adjustment can be achieved according to actual construction requirements, inclined rod connection is achieved through cooperation of a first connecting base, a second connecting base, a bolt rod, a first limiting groove and a second limiting groove in the connecting assembly, and the construction efficiency is improved.

The utility model discloses an automatic curtain rail assembly which comprises a first fixing seat and a second fixing seat, an inner rail section bar and an outer rail section bar are arranged between the first fixing seat and the second fixing seat, and the inner rail section bar and the outer rail section bar are movably connected in a sleeved mode. The first fixing seat is connected with the outer rail profile, the second fixing seat is connected with the outer rail profile, and the device further comprises a first guide assembly and a second guide assembly; the first guide assembly is fixedly connected with the inner rail profile, and the first guide assembly is movably connected with the outer rail profile; the second guide assembly is fixedly connected with the outer rail profile and movably connected with the inner rail profile. The rail assembly is novel in design, smooth opening and closing and height adaptability of the curtain are guaranteed, and intelligent home experience is improved.

The ship side thruster is provided with an arc-shaped bent pipe, a propeller is installed at one end of the arc-shaped bent pipe, the two ends of the arc-shaped bent pipe are open, the propeller is fixed into the arc-shaped bent pipe and connected with one end of a propeller shaft through a coupler support, the propeller shaft penetrates out of the arc-shaped bent pipe, and the propeller shaft is connected with the propeller shaft through a coupler support. A sealing assembly is arranged between the propeller shaft and the arc-shaped bent pipe, the propeller shaft penetrates through the sealing assembly and then is connected with a thrust bearing, the thrust bearing is fixed to an outer support, the propeller shaft can rotate under the supporting of the thrust bearing, the other end of the propeller shaft is connected with a turning transmission box through a flange, and the turning transmission box is connected with the propeller shaft. A sealing sleeve is arranged at the output end of the direction-changing transmission box, and the direction-changing transmission box is connected with a driving motor installed in the ship body. The resistance is reduced, and the service life is prolonged.

The utility model discloses a suspended fire-fighting pipeline supporting device, which relates to the field of fire-fighting pipeline installation and comprises a pipeline bearing unit and fixing units, the pipeline bearing unit comprises a bearing plate, a pressing plate and two adjusting arms, and the two fixing arms are fixedly installed at the top of the bearing plate. The area between the two fixed arms is used for placing a pipeline; the adjusting arms and the fixed arm can be connected in a relative moving mode, the pressing plate is detachably installed on the two adjusting arms and used for pressing and fixing a pipeline, and a hanging ring used for being connected with a hanging rope is fixedly welded to the upper surface of the pressing plate. The installation height of the pipeline can be quickly and accurately adjusted only by rotating the high-strength screw without field cutting, the installation time is greatly shortened, and the installation efficiency is remarkably improved.

The utility model discloses a kind of electromagnetic lock mounting structure based on installation position adjustment, including electromagnetic lock body, electromagnetic lock body is set on mounting plate, mounting plate is set on transverse horizontal adjustment assembly, transverse horizontal adjustment assembly is set on longitudinal horizontal adjustment assembly, transverse horizontal adjustment assembly and longitudinal horizontal adjustment assembly between be provided with limit locking assembly, the utility model is equipped with transverse horizontal adjustment assembly and longitudinal horizontal adjustment assembly, when the installation of electromagnetic lock body, the installation position adjustment of electromagnetic lock body is convenient, improve the installation convenience of electromagnetic lock body, make electromagnetic lock magnetic attraction lock position can be accurately aligned, improve the locking effect and use safety of electromagnetic lock.

The utility model relates to the technical field of carbon fiber weaving, in particular to a composite carbon fiber weaving device which comprises a working table, and a support is installed on the top face of the working table. A mounting structure is mounted on the upper side of the workbench and comprises a mounting rod, the mounting rod is fixedly mounted at the top end of the support, a clamping groove and a first threaded groove are formed in the surface of the mounting rod, an inner hexagon bolt is in threaded connection with the inner side of the first threaded groove, and a connecting block is arranged on the middle section of the mounting rod; clamping blocks are integrally formed at the two ends of the connecting block, and second threaded grooves are formed in the surfaces of the clamping blocks. And a guide structure is mounted on the mounting structure. By arranging the detachable connecting block, the mounting rod can be disconnected from the middle part, the guide structure can be conveniently mounted on the mounting rod from the middle part, the guide structures on the two sides do not need to be taken down, the mounting convenience of the guide structure can be improved, and the use effect of the device is further improved.

The utility model belongs to the technical field of building materials, and particularly relates to a novel semi-hidden frame type building glass curtain wall which comprises a frame and a glass plate, the frame is composed of transverse rods and longitudinal rods, the glass plate is composed of a first glass sheet, a second glass sheet and an inner support, and the inner support is installed between the first glass sheet and the second glass sheet. The first glass sheet and the second glass sheet are located on the outer side of the inner support to form a clamping groove used for being connected with a frame, a plurality of guide grooves are distributed in the surface of the side, used for being connected with the transverse rod, of the inner support at equal intervals, the guide grooves are filled with adhesive glue, and a movable part is slidably installed in each guide groove. The adhesive in the guide groove is extruded into the guide groove through the movement of the guide moving part, so that the adhesive can be uniformly and fully distributed between the cross rod and the inner bracket, the adhesive coating work is automatically completed, the adhesive coating difficulty is reduced, the mounting efficiency and convenience are improved, and the sealing performance of the cross rod and the inner bracket can be fully ensured.

The utility model discloses a bearing structure and a door and window device. The bearing structure comprises a main body, a movable part, an adjusting assembly and a bearing wheel. Wherein the main body is provided with a mounting groove, a first opening and an adjusting hole, and the first opening and the adjusting hole are both communicated with the mounting groove. The adjusting assembly comprises an adjusting piece and an abutting piece, the adjusting piece penetrates through the adjusting hole and is connected to the abutting piece, the abutting piece abuts against the movable piece, and the adjusting piece can drive the abutting piece to move so as to change the position of the movable piece in the vertical direction. The bearing wheel is rotationally connected to the movable part, at least part of the bearing wheel is located below the first opening, and the bearing wheel can drive the body to move in the first direction. The abutting part abuts against the movable part, and the adjusting part is connected to the abutting part and can drive the abutting part to move, so that the position, abutting against the movable part, of the abutting part is changed, the position, in the vertical direction, of the movable part is changed, the size, in the vertical direction, of the bearing structure is changed, and installation of the bearing structure is facilitated.

The utility model relates to the field of bath heaters, in particular to a novel bath heater which comprises a main machine and a cover plate, the cover plate is arranged at the upper end of the main machine, the main machine comprises a box body, an air inlet assembly, an air exhaust assembly and a PTC heating assembly, the air inlet assembly sucks indoor air, the air exhaust assembly and the PTC heating assembly are arranged in the box body, and the air is heated by the PTC heating assembly and then blown into a room through the air inlet assembly. The exhaust assembly exhausts indoor air to the outside, the PTC heating assembly comprises a shell and a PTC module, the PTC module is arranged in the shell, the shell is installed on the inner side of the cover plate, the widths of the two ends of the section of the shell are gradually decreased upwards, staggered reinforcing ribs are arranged on the end face of the shell, and the PTC module is arranged in the shell. The upper middle part of the cover plate is provided with a mesh enclosure which corresponds to the air inlet assembly and the exhaust assembly and is provided with a barrier strip, the rear side of the middle part of the cover plate is provided with a cavity for accommodating a wiring module, the outer side of the cavity is buckled with a wire outlet cover, and two ends of the wire outlet cover are provided with wire outlet holes.

The utility model relates to the technical field of washing machines, and discloses a drying device for an embedded bathroom cabinet washing machine all-in-one machine, the drying device comprises an exhaust pipe and a collection box, the exhaust pipe is arranged between a cabinet and an outer cylinder; the air inlet end of the exhaust pipe is communicated with an outer barrel of the washing machine; the air outlet end part of the exhaust pipe is arranged outside the cabinet body; the position, close to the air outlet end, of the exhaust pipe is lower than the position, close to the air inlet end, of the exhaust pipe. The collecting box is communicated with the exhaust pipe. The drying device has the effect of reducing the possibility that the interior of the cabinet body is moistened by damp and hot gas exhausted by the drying device.

The refrigeration equipment comprises a box body and a door body, the door body comprises a door body and a decoration plate assembly, the door body comprises vacuum glass, the decoration plate assembly is arranged on the side, away from the box body, of the door body, the decoration plate assembly comprises a door plate and a decoration strip, and the decoration strip is arranged on a projection plane perpendicular to the direction from the door body to the box body. The door plate and the decoration strip surround the vacuum glass, one side of the decoration strip is connected with the door plate through a connecting piece, and the other side of the decoration strip abuts against the vacuum glass. The decoration strip makes up various installation gaps, no matter what kind of errors are generated in the installation process, the decoration strip can fill the gaps through flexible adjustment, and therefore visual consistency of products in different installation environments is guaranteed, the attractiveness problem of a door body is remarkably solved, a more flexible installation mode is provided for a user, and the installation efficiency is improved. And the refrigeration equipment has higher competitiveness in the high-end market.

The utility model relates to the technical field of generator equipment, and discloses a generator set drainage device with a water accumulation prevention structure, which comprises a waterproof cover, a plurality of pulleys are fixedly connected in the waterproof cover, a generator base is slidably connected in the waterproof cover, a first sliding chute is arranged outside the generator base, and a second sliding chute is arranged outside the generator base. The exterior of the generator base is fixedly connected with a diesel engine, the exterior of the diesel engine is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with a drainage mechanism, the exterior of a waterproof cover is fixedly connected with a fixing block, and the exterior of the fixing block is fixedly connected with an adjusting mechanism. And the drainage mechanism comprises a drainage pump. According to the anti-blocking device, the anti-blocking plate is driven by the drainage pump to move, so that the anti-blocking plate rotates in the connecting pipe, then the air cylinder drives the push plate to move, the drainage pump is automatically started, damage of accumulated water to the generator set is avoided, and safe and stable operation of equipment is ensured.

A faucet convenient to install belongs to the technical field of faucets. The faucet convenient to install comprises a water pipe, a mounting plate is fixedly connected to the water pipe, a fixing bolt is arranged on the mounting plate, mounting threads are formed in the lower portion of the surface of the water pipe, a first sealing ring is fixedly connected to the bottom of the water pipe, and a mounting water pipe is connected to the bottom of the water pipe in a sleeving mode; the top of the installation water pipe is fixedly connected with a second sealing ring, the first sealing ring is matched with the second sealing ring, the surface of the second sealing ring is in threaded connection with an installation threaded block, and a labor-saving groove is formed in the surface of the installation threaded block. The faucet convenient to install has the advantages of improving installation efficiency and improving user experience.

A compact lens antenna includes: a lens dielectric body with a feed cavity thereon and a feed source at least partially disposed within the feed cavity; the lens dielectric body includes multiple nested bodies; the lens dielectric body is configured to achieve electromagnetic wave phase compensation and optimize antenna performance by adjusting the size, thickness, and dielectric material of the multiple nested bodies. The compact lens antenna is smaller, lighter, and has reduced wind resistance, improving the reliability and ease of installation on towers. Furthermore, by changing the shape of the lens dielectric body, adding a compensation medium, or increasing the dielectric constant, the phase of the electromagnetic wave is compensated, thus optimizing antenna performance.

The utility model discloses a disc-shaped suspension insulator duplex single-hanging-point V-shaped suspension string which comprises a spacing frame, the spacing frame is provided with a fast-assembly mechanism, the top of the spacing frame is provided with two V-shaped disc-shaped insulator strings, the outer sides of the two disc-shaped insulator strings are provided with a voltage-sharing mechanism, the fast-assembly mechanism comprises a support frame, and the support frame is provided with a fixed support. A plurality of wire seats are arranged on the outer side of the supporting frame, a connecting seat is fixedly connected to one end of each wire seat, a movable cover is rotationally connected to each connecting seat, and an embedded clamping block is fixedly connected to the end of each movable cover. According to the disc-shaped suspension insulator duplex single-hanging-point V-shaped suspension string, wires are placed on the wire base, the movable cover is rotated, so that the magnetic embedded clamping block at the end of the movable cover is inserted into the wire base, then the rotating head is rotated to press the embedded clamping block, and then the rotating head is pressed inwards for locking, so that the multiple wires are rapidly installed at the same time, and the installation efficiency is improved. And the installation efficiency and convenience are effectively improved.

The utility model relates to the technical field of geothermal water pumps, and provides a deep well water source heat pump control device and system, which comprises a master control module, an expansion DI / DO module, a water pump control module, a 4G communication module and an interactive communication module, the expansion DI / DO module is electrically connected with the master control module, the expansion DI / DO module comprises a plurality of DI input ends and a plurality of DO output ends, and the DI input ends are electrically connected with the interactive communication module. And the DI input end and the DO output end are used for connecting a control device and a sensor, so that the main control module receives and controls signals of the control device and the sensor. According to the deep well water source heat pump control device and system, the control devices can be arranged at the positions needing to be installed according to actual requirements, then a plurality of control devices are arranged according to the system requirements, the control devices can achieve different functions and can conduct interactive communication at the same time, the control devices can be produced in a unified mode and do not need to be customized specially, the equipment cost is effectively saved, and the control efficiency is improved. And in the line arrangement process, the wiring length is reduced.

The utility model relates to the technical field of environment detection, in particular to an environment monitoring device capable of being quickly assembled, which comprises a stand column. Two sets of wind speed detection sensors are fixedly installed at the upper end of the stand column through threads, an atmosphere detection sensor is installed at the upper end of the stand column through threads, the atmosphere detection sensor is located between the two sets of wind speed detection sensors, a control box is movably installed on the stand column, and a display screen is installed on the control box. A first mounting sleeve is fixedly mounted on the rear side of the control box, and a second mounting sleeve is mounted on the rear side of the first mounting sleeve. The stand column is sleeved with the control box through the first installation sleeve and the second installation sleeve, then the two sets of first screws are synchronously twisted to drive the two movable blocks and the rollers to be attached to the stand column, the control box can be fixed to the stand column, the two sets of rollers are driven to rotate by twisting the two sets of rotating shafts, and the installation height of the control box on the stand column can be adjusted.

The utility model provides a portable modularized nitrogen making machine. The portable modularized nitrogen making machine comprises a gas inlet seat and a gas outlet seat, wherein the gas inlet seat and the gas outlet seat are respectively provided with a gas inlet channel and a gas outlet channel; the air inlet end and the air outlet end of the adsorption module are respectively communicated with the air outlet end of the air inlet channel and the air inlet end of the air outlet channel; the first connecting piece is detachably arranged at the air inlet end of the air inlet channel in a sealing manner; the second connecting piece is detachably arranged at the air outlet end of the air outlet channel in a sealed mode. Pipeline connection among a compressed air pipeline, an air inlet channel and an air inlet control valve is achieved through a first input channel, a first output channel and a first control cavity which are integrally integrated in a first connecting piece. And the second input channel, the second output channel and the second control cavity which are integrally integrated in the second connecting piece realize pipeline connection among the nitrogen pipeline, the gas outlet channel and the gas outlet control valve, so that the number of pipe fittings required by the nitrogen making machine is greatly reduced, rapid installation of the gas pipeline of the nitrogen making machine is realized, the production efficiency is improved, and the production cost is reduced. And connection points of gas pipelines can be reduced, and the gas leakage risk is reduced.

The application discloses a fine-pitch board-to-board connector with high manufacturability and small volume, which comprises a socket and a plug, the plug is inserted into a first slot of the socket, a buckling boss is inserted into a second slot of the plug, and a fourth elastic U-shaped part of the plug is inserted into a U-shaped elastic cavity of a first terminal; an accommodating cavity is arranged along the length direction of the buckling boss, two abutting plates are arranged along the length direction of the accommodating cavity, and abutting blocks are arranged on the sides of the two abutting plates away from each other, the abutting blocks correspond to the first terminals one by one, the abutting blocks pass through the buckling boss and abut against the first terminals, and a driving mechanism for pushing the abutting blocks out of the buckling boss is arranged between the two abutting plates. The application has the effect of improving the accuracy and stability of signal transmission of the board-to-board connector.

The utility model relates to the technical field of automobile seat, especially a kind of automobile rear seat cushion frame, it is convenient for passenger to adjust cushion angle, improve passenger comfort, and simple structure is lighter in quality, it is convenient to install and produce, simultaneously reduce vehicle weight, in addition, there are also reserved hole and mounting bracket on cushion welding assembly, it is convenient to fix the bottom of cushion when installing cushion, improve cushion installation convenience, in turn improve production efficiency;Including cushion welding assembly;Still including supporting mechanism and adjusting mechanism, supporting mechanism and adjusting mechanism are all installed on cushion welding assembly;The supporting mechanism cooperates cushion welding assembly and supports passenger, and adjusting mechanism adjusts the angle of cushion welding assembly.

The utility model discloses a kitchen range's water pan structure, including water pan body, the water pan body is provided with burner avoidance hole and is used for connecting the mounting counter bore of water pan body and burner, the mounting counter bore is arranged aside the mounting hole, the mounting counter bore is detachably connected with the shield cap that is used for shielding the mounting connecting piece, the shield cap is detachably connected with the mounting connecting piece, and the mounting connecting piece is detachably connected with the mounting counter bore. According to the water pan, the mounting counter bore is formed in the water pan body, and the shielding cap is arranged in the mounting counter bore, so that mounting connecting pieces such as screws and nuts are effectively shielded, and the overall attractiveness of a stove is improved. By means of the design, after the cooker is installed, the appearance of the cooker is neater and smoother, no exposed installation part exists, and the high requirement of consumers for the appearance of the cooker is met.