138results about How to "Reliable function" patented technology

The present invention discloses a universal arm and a rock drill for tunnel construction. The universal arm comprises a boom, a front support is provided at the front end of the boom, a guide rail sliding frame is rotatably provided on the front support through a first pivot, a guide rail sliding frame rotation driving oil cylinder is connected between the guide rail sliding frame and the front support; a guide rail support is rotatably provided on the guide rail sliding frame through a second pivot parallel to the bearing surface of the front support, and a flip driving device for driving the guide rail support to flip is provided between the guide rail support and the guide rail sliding frame rotation driving oil cylinder. The rock drill for tunnel construction is composed of a universal arm and a step-type rock drill provided on the universal arm. The beneficial effects of the present invention are that the universal arm has a simple structure, occupies less space, is light in weight, and has reliable functions. The rock drill for tunnel construction gives full play to the technical advantages of the step-type rock drill and the universal arm, provides guarantee for the mechanized operation of tunnel construction, has high construction efficiency, and low construction cost.

The invention discloses a three-position switch operating mechanism and a breaker manual operation locking device, and is characterized in that the three-position switch operating mechanism comprises a three-position operating mechanism which is provided with a program lock; on the program lock, pressing or releasing of an interlocking rod is controlled through a lock plate to limit or not limit an operation hole sliding door plate; the tail end of the interlocking rod is connected with the adjusting block; the adjusting block is connected with the end of the connecting pull rod; the connecting pull rod penetrates through a reset spring, and the state of the interlocking rod is reset through the reset spring when the program lock is unlocked. An interlocking connecting plate is arranged at the lower end of the connecting pull rod; a closing locking sliding plate and an opening locking sliding plate are symmetrically arranged on the interlocking connecting plate; the closing and locking slide plate is arranged on the circuit breaker support plate through a first guide structure; the opening locking slide plate is arranged on the circuit breaker support plate through a second guide structure. The closing locking slide plate is provided with a closing baffle plate used for blocking or releasing the closing button. The opening locking slide plate is provided with an opening baffle plate used for blocking or releasing the opening button. According to the invention, the program lock is adopted to connect the manual operation functions of the vacuum circuit breaker and the three-position switch together to allow or prohibit operation, padlocks are reduced, the program lock can realize more interlocking functions at the same time, the higher safety operation requirements of customers are better met, and the possibility of misoperation of the switch cabinet is reduced. Functions can be realized by adding a small number of parts on the basis of the original three-position operating mechanism and circuit breaker, the cost is low, and the function is reliable.

The invention discloses a ventilator shell anti-icing device and an installation method, and relates to the technical field of air blowers. An anti-icing device for a ventilator shell comprises a heating module, a supporting module and an emptying module. The heating module comprises a coil pipe, and heating fluid is arranged in the coil pipe; the coil pipe is pressed and connected to the bottom position of the outer side wall of the fan shell through the supporting module; the emptying module comprises an emptying pipe, one end of the emptying pipe is connected with the fan shell, and a valve body is installed at the other end of the emptying pipe. The emptying pipe is communicated with the bottom of the inner cavity of the fan shell. The supporting module enables the heating module to be installed at the bottom of the outer side wall of the fan shell, the heating module heats water in the fan shell and an inner cavity of the fan shell, liquid water is prevented from being frozen into ice or solid ice is prevented from being melted into liquid water, and then the liquid water is discharged out of the fan through the emptying module, so that the anti-freezing effect is achieved, and the service life of the fan is prolonged. And the operation safety is improved.

The utility model provides a hydraulic switching structure of a top shower head, which comprises a body and a reciprocating hydraulic switching mechanism arranged in the body, and the body is provided with a water inlet channel and at least two water outlet channels. The reciprocating type hydraulic switching mechanism can move in a reciprocating mode under the water pressure effect of the water inlet channel so that the water inlet channel can be selectively communicated with all the water outlet channels. The top spraying shower head with the hydraulic switching structure is convenient to use, good in experience feeling, simple in structure and reliable in function.

The utility model discloses a diving anti-explosion window electric lamp which comprises a head cover, a lamp body and a tail cover, the lamp body is of a barrel structure, a first sealing ring and a second sealing ring are arranged on the outer sides of the two ends of the lamp body and correspond to the head cover and the tail cover respectively, a first containing cavity is formed by the head cover and the lamp body, and a lens, a light cup, an LED lamp assembly and a dimming assembly are sequentially arranged in the first containing cavity. The lens is embedded in the front end of the head cover, the light cup is fixedly connected with the lens and the LED lamp assembly in an abutting mode, a display window corresponding to the dimming assembly is arranged on the lamp body, a battery bin is arranged at the end, away from the head cover, of the interior of the lamp body, an energy storage power source is movably arranged in the battery bin and electrically connected with the LED lamp assembly and the dimming assembly, and the tail cover is rotationally connected with the lamp body. The tail cover can be rotated to open and close the LED lamp assembly, and a pressing window breaker is arranged at the rear end of the tail cover in a semi-embedded mode. The utility model has the advantages of simple structure, attractive appearance, light weight, abundant functions, stable and reliable performance, convenience in use, practicability and higher popularization value.

The invention provides a European standard direct current charging control device and a charging method thereof, the device comprises a plurality of European standard direct current controllers, a plurality of charging communication controllers and a plurality of direct current charging guns, and the European standard direct current controllers are connected with one or two charging communication controllers through CAN buses. The charging communication controller is connected with the direct current charging gun through a PLC bus, and the plurality of European standard direct current controllers are mutually connected through network cables. The functional modules are combined flexibly and can be expanded automatically according to specific requirements, and multiple power distribution modes can be selected. The high-voltage part realizes reinforced insulation, the low-voltage part realizes basic insulation, a high-voltage and low-voltage isolation design mode is adopted, the stability of the charging control system is improved, and the anti-interference capability is high. The system has the advantages of low cost, comprehensive functions, wide acquisition range, high precision, stable and reliable performance, strong anti-interference capability, flexible combination mode and the like.

The invention relates to the technical field of electrical equipment for brewing coffee, in particular to a full-automatic coffee machine which comprises a lower brewing head unit, an upper brewing head unit, a powder sweeping unit, a main driving unit and a lower brewing head driving unit which are arranged in a working cavity of the coffee machine. The lower brewing head unit sequentially cooperates with the powder supply unit, the upper brewing head unit, the lower brewing head driving unit and the powder sweeping unit to complete the working steps of coffee powder adding, pressed powder pressing, coffee extraction, pressed powder ejection, pressed powder sweeping and brewing piston resetting in the linear movement process in the working cavity, distributed action is adopted, and the function is reliable; meanwhile, adjustment of pressure relief and water inflow in the extraction head and driving of pressed powder pressing, pressed powder ejection, pressed powder sweeping and brewing piston resetting are completed only through the main driving unit, the configuration number of driving structures in the coffee machine is reduced, and convenience is provided for reducing the design size of the coffee machine.

The invention relates to the technical field of communication, in particular to an integrated emergency communication system based on multi-network integration type conduction, which comprises a box body, a multifunctional command platform is configured on the box body, and the multifunctional command platform is integrated with the following systems: a pickup and sound amplification system comprising a microphone, a sound console, a loudspeaker and a power amplifier, the microphone, the sound console and the loudspeaker are arranged at the top of the box body, the power amplifier is arranged on the front side of the box body, a power amplifier interface electrically connected with the power amplifier is arranged on the outer wall of the box body, and the system is integrated in the box body and comprises a plurality of subsystems such as sound pickup and amplification, video acquisition and display, centralized monitoring control, communication and network, satellite positioning and power grid dispatching. High integration is achieved, rapid deployment and movement are facilitated, the communication and network system integrates multiple communication modes such as a mobile public network all-network communication mode, a Tiantong satellite communication mode and a Beidou satellite communication mode, the communication reliability in various complex environments is ensured, and the system is particularly suitable for emergency scenes.

This invention belongs to the field of medical device technology and discloses a foot pressure relief device for diabetic foot. It includes a base, a pressure relief plate and a motor connected to the base, and a foot pedal and a transmission assembly connected to the pressure relief plate. The transmission assembly includes a crank, a first connecting rod, and a sliding seat. The crank is fixedly connected to the output shaft of the motor, and the sliding seat is connected to the pressure relief plate. The two ends of the first connecting rod are respectively connected to the crank and the sliding seat. The sliding seat is connected to a foot rolling shaft and a second connecting rod, and the second connecting rod is connected to a foot massage roller. A buffer spring is provided between the pressure relief plate and the base. The foot pedal has a through groove, and the foot rolling shaft is connected to a foot massage roller. This invention utilizes the foot rolling shaft / foot massage roller and the foot massage roller to simultaneously perform rolling massage on the sole and instep of the foot. The periodic oscillation of the pressure relief plate causes the heel and toes to alternately rise, resulting in good pressure relief for the foot.

The invention provides a multichannel direct current conversion power supply and protection device and method.In the device, a first power supply conversion and isolation protection module supplies electric energy of a first power supply channel module to a second power supply channel module when the second power supply channel module is not in a working state, and supplies the electric energy of the first power supply channel module to the second power supply channel module when the second power supply channel module is in a short-circuit state; isolating the second power supply channel module; when the first power supply channel module and the second power supply channel module are not in a working state, the DC ground power supply channel module supplies power to the first power supply channel module and supplies power to the second power supply channel module through the first power supply channel module and the first power supply conversion and isolation protection module. The invention provides a power supply conversion circuit structure for realizing a multi-channel power supply, and provides a method for isolating a short-circuit channel to protect a normal power supply channel at the same time, and the power supply conversion circuit of the multi-channel power supply consists of hardware, and is high in circuit anti-interference capability and reliable in function.

The main flushing connector of the closestool comprises a connector body and a nut assembly, the nut assembly comprises an installation nut, a locking nut and a gasket, one end of the installation nut is connected with the connector body, the other end of the installation nut is connected with the locking nut, the gasket is arranged between the installation nut and the locking nut, and the connector body is connected with the gasket. One end of the connector body extends into the mounting nut, and the inner circumferential wall of the gasket is arranged on the outer circumferential wall of the connector body in a sleeving mode. According to the utility model, the gasket is arranged between the mounting nut and the locking nut, when the gasket is not locked, the gasket is in an unpressed state, at the moment, the connecting pipe can be easily connected with the joint main body in an inserting manner, after the connecting pipe is inserted in place, the mounting nut is locked by the locking nut, and in the locking process, the gasket is extruded by the locking nut, so that the connecting pipe is prevented from being damaged. And the periphery of the gasket uniformly presses the outer ring of the connecting pipe, so that the inner ring of the connecting pipe is driven to be uniformly locked on the joint main body, and the sealing and locking of the connecting pipe are realized.

A multifunctional coupling test device belongs to the transmission part test field. The technical problems that an existing coupling testing device is inconvenient to adjust and cannot be suitable for couplings of different length series at the same time are solved. The device comprises an energy feedback loading transmission system and a six-degree-of-freedom platform. The output end of the shaft of the driving device is connected with the input end of the shaft of the input transmission case, the input end of the test piece coupling is connected with the output end of the shaft of the input transmission case, the output end of the test piece coupling is connected with the input end of the shaft of the output transmission case, and the output end of the shaft of the transmission case is connected with the input end of the shaft of the loading device; the upper platform is arranged above the lower platform, and the upper platform and the lower platform are connected through the posture adjustment executing mechanism; the input transmission case is installed on the top face of the upper platform, and the output transmission case is installed on the bottom face of the lower platform. And various test requirements of various types of couplings are met. The device is used for coupling tests.

The invention discloses a foldable multifunctional coarse cereal cultivation all-in-one machine which comprises a Z handrail and a machine body frame. The left end of the Z-shaped handrail is connected with the handrail connector, and the Z-shaped handrail is connected with the long vertical rod through the inclined supporting rod connecting block. The Z handrail connector is connected with the upper U-shaped fork through a rotating shaft and is fixed at the top end of the long vertical rod through an inner hexagon bolt; a rotary tillage head, a plowshare, a throttling block, a seed flow control shaft, a water tank, a ball valve, a water pipe, a burying head and the like are installed on the machine body frame. The rotary tillage head is driven by the stepping motor and the belt pulley to rotate, the rotary tillage head, the plowshare, the seed flow control shaft, the water pipe and the burying head sequentially perform corresponding operation along with advancing of the cultivator, and the cultivation process of coarse cereals is achieved. According to the device, five steps of rotary tillage, ditching, seeding, watering and burying are achieved at a time, the cultivation efficiency is greatly improved, and the labor intensity of farmers is reduced. In addition, the device can be stored in a folding mode, space is saved, and carrying and transferring are convenient.

The utility model relates to a hydraulic double-state electromagnetic valve for an automobile braking system, and belongs to the field of electromagnetic valves for automobile braking systems. The valve core is arranged in the valve body, the valve core compresses the reset spring and then is fixedly connected with the movable iron core, the valve seat is pressed into the bottom of the valve body, the filter screen is embedded into the tail portion of the valve body, the movable iron core is in sliding connection with the metal guide sleeve, the static iron core is fixedly connected with the upper portion of the metal guide sleeve, and the O-shaped sealing ring is connected to the valve body in a sleeved mode. The electromagnetic valve has the advantages that the electromagnetic valve is novel in structure and is of a two-position three-way electromagnetic valve structure, the electromagnetic valve can be opened and closed after the electromagnetic coil is powered on, the electromagnetic valve is used for switching hydraulic oil flow channels of a braking system and can replace a normally-opened valve and a normally-closed valve in the prior art, the action response characteristic of the hydraulic braking system is improved, and the service life of the hydraulic braking system is prolonged. Functions are achieved accurately and reliably, meanwhile, cost is reduced, and the overall layout of a hydraulic system is improved.

The invention discloses an adjustable floor thickness controller and a construction method, and relates to the technical field of building construction. The adjustable floor thickness controller comprises a vertical supporting module. The vertical supporting module comprises a first plate body, a second plate body and an adjusting assembly. The adjusting assembly comprises an inserting rod, a sleeve and a locking mechanism; the sleeve is vertically and detachably connected with the first plate body; and the inserting rod is vertically and detachably connected with the second plate body. The vertical supporting assembly is simple in structure and reliable in function, the adjusting assembly can conveniently adjust the distance between the first plate body and the second plate body, so that the overall height of the vertical supporting assembly is adjusted to adapt to construction operation of floor slabs with different target thicknesses, product compatibility and adaptability are improved, product standardization is achieved, the production and manufacturing efficiency is improved, and the production cost is reduced. Materials are fully supplied, and the construction period is prevented from being delayed.

The invention relates to a BIM information digital processing method and system based on an IFC-GRID standard. The method comprises the steps that BIM data to be processed and stored according to the IFC standard are acquired; geometric model data in the BIM data are converted into forms of boundary representation entities, sweeping entities, construction entities and surface models for shape expression; converting display data in the BIM data into coloring display and texture mapping display; attribute data in the BIM data is subjected to extension customization, including object extension and object attribute extension, the object extension adopts an IFC standard language for re-description, and the object attribute extension adopts a mode of defining a new attribute set and an attribute type to describe entity characteristics. Compared with the prior art, the method has the advantages that the data conversion efficiency of the IFC-GRID standard is improved, the function is stable and reliable, and the IFC-based unified data expression mode IFC-GRID standard can be built.

The application belongs to the technical field of medical devices, and discloses an oral cavity orthodontic mouth gag, which comprises a mouth gag body and a saliva suction pipe, the mouth gag body is provided with an upper lip supporting part, the upper lip supporting part is provided with a groove, the inner side of the groove is provided with a flexible adjusting bag, the upper lip supporting part is connected with an adjusting assembly, the adjusting assembly comprises an outer cylinder and a piston assembly, the outer cylinder is communicated with the flexible adjusting bag through a conduit, the conduit arranged at both ends of the outer cylinder is provided with a one-way valve, the mouth gag body is connected with a cheek opening part through an adjusting part, the cheek supporting part is connected with a clamping part, and the mouth gag body is further connected with a sleeve ring which is arranged in cooperation with the saliva suction pipe. The application adjusts the inflation state of the flexible adjusting bag on the inner side of the upper lip supporting part by means of the adjusting assembly, so as to adjust different opening degrees and improve the comfort when the upper lip is opened; the connecting position and angle of the cheek opening part and the mouth gag body are adjusted, so as to adjust the opening position and expose the visual field of the corresponding position.

The invention provides a clutch automatic door opening and closing device and refrigeration equipment, and belongs to the technical field of household appliances. The clutch automatic door opening and closing device comprises a driving mechanism, a transmission wheel and a clutch mechanism; the clutch mechanism comprises a limiting part, a clutch locking part and a clutch pushing part which are arranged on the transmission wheel; the clutch locking part comprises a locking block capable of moving along the first rotating shaft, a spring bolt capable of moving in the first radial direction and a first reset piece connected with the locking block and the spring bolt. The clutch pushing part moves in the first radial direction and drives the spring bolt to move along the first rotating shaft through the locking block, so that the spring bolt is matched with the limiting part; when the spring bolt is matched with the limiting part and the transmission wheel bears abnormal acting force larger than a first preset value, the limiting part forces the spring bolt to retract in the first radial direction and compress the first reset piece, the spring bolt is separated from the limiting part, the locking block is kept still, and therefore impact force is prevented from being transmitted to the clutch pushing part; according to the clutch automatic door opening and closing device, impact force transmission during abnormal impact can be interrupted, so that all parts are protected.

The novel low-leakage high-reliability bottle head valve comprises a valve body, a valve deck and a protective cap, the valve body is a T-shaped valve, the valve deck is in sealed connection with an inlet end valve port of the valve body in a spiral mode, the protective cap is in sealed connection with an outlet end valve port of the valve body in a spiral mode, a piston assembly is arranged in the valve body, and a valve core is arranged in the valve deck. One end of the piston assembly is an open port, the other end of the piston assembly is a sealed port, the open port faces the valve core, and the piston assembly is used for sealing or opening the outlet end valve port. According to the low-leakage and high-reliability bottle head valve, the functions of inflation, sealing, opening, pressure display, overpressure release and automatic valve closing of the bottle head valve can be achieved, compared with the prior art, the low-leakage and high-reliability bottle head valve is suitable for the bottle head valve with high requirements for micro leakage and reliability in a special environment, the working state is timely and efficient, the performance is stable and reliable, the structure is reasonable and compact, and assembling is convenient.

A packaging machine (10), in particular for wrapping one or more objects (100) with a strip of packaging material (11), comprises: a support structure (2) configured to receive at least one reel (3) of the strip of packaging material (11) and comprising a handling device (4) configured to handle the support structure (2); at least one guide member (5) mechanically connected to the support structure (2) and extending in an overhanging manner relative to the support structure (2) along an axis Z; a deflection device (6) configured to deflect the packaging material strip (11); the device is characterized in that a deflection device (6) is slidably coupled to the at least one guide member (5), and the deflection device (6) is movable between a proximal position in which the deflection device (6) is moved close to the support structure (2), and a distal position in which the deflection device (6) is moved close to the support structure (2), in order to wrap the one or more objects at least partially along the axis Z with the strip of wrapping material (11). The deflection device (6) is moved away from the support structure (2) in a distal position.

The utility model discloses a cable loading vehicle, and relates to the technical field of cable test equipment, the cable loading vehicle comprises a support assembly, a moving assembly, a rolling assembly and a chassis, the support assembly comprises a frame body shaped like a Chinese character'ri ', the moving assembly is installed on the lower surface of the frame body, and the rolling assembly and the chassis are installed on the upper surface of the frame body; the moving assembly comprises a driving wheel, a driven wheel and a first driving structure; the rolling assembly comprises a rolling frame and a second driving structure; the frame body is provided with a first cavity and a second cavity; a first wheel set fixing plate is arranged in the first cavity; a second wheel set fixing plate is arranged in the second cavity; a supporting beam is arranged in the first cavity, and a supporting plate used for installing the second driving structure is arranged on the upper surface of the supporting beam. The cable reel is placed on the rolling assembly, the rolling assembly is matched with the cable reel to synchronously rotate along with pulling of the cable, and unwinding of the cable reel is achieved. The device is easy to manufacture, convenient to assemble, stable in structure, reliable in function and convenient to use, and has wide market prospects.

The utility model relates to the technical field of filter grid, concretely is a kind of breeding pond water inlet filter grid of fish escape prevention, including frame, the surface of the frame is fixedly installed with screw rod holder, by setting screw rod, cleaning rod, spring, pressing plate, cleaning brush, scraper, utilize the synergistic effect of these structures, when motor drives screw rod rotation, screw rod block drives cleaning rod along slide rod steady movement, ensure that cleaning process is stable and without deviation, spring pushes pressing plate and makes brush piece closely adhere filter plate surface, guarantee brush piece overall contact, avoid brush leak, shovel-shaped scraper located below brush piece, can shovel stubborn impurities attached on filter plate first, then brush piece is thoroughly cleaned to residual small dirt, form the cleaning process of first shovel after brush, both can efficiently remove the plug on filter plate, and can protect filter plate from excessive wear, ensure that filter plate keeps good permeability state for a long time, effectively prevent impurity blockage and fish escape.

The utility model discloses a telescopic pipe racking machine, which relates to the technical field of pipe racking machines and comprises a supporting module, a moving module and a grabbing module. The moving module comprises a longitudinally-arranged longitudinal moving assembly, a transversely-arranged cross beam and a transversely-arranged bidirectional telescopic assembly. The longitudinal moving assembly comprises a first connecting end and a first moving end, the first connecting end is connected with the supporting module, and the first moving end is connected with the cross beam; the bidirectional telescopic assembly comprises a second connecting end and a second moving end, the second connecting end is connected with the cross beam, and the second moving end is connected with the grabbing module. The device is simple in structure, reliable in function and flexible to operate; flexible driving of the grabbing module and the pipe fitting is achieved through the moving assembly, the cross beam and the two-way telescopic assembly; the bidirectional telescopic assembly capable of moving bidirectionally enables pipe stacks obtained by pipe arrangement to have larger width and smaller height, so that the pipe stacks have better stability, and the safety of storage and transportation is improved.

The utility model discloses a machine tool cutter assembly, which relates to the technical field of numerical control machine tools and comprises a base and a turning tool structure. The base comprises a straight plate part and an upper convex part, a sliding groove is formed in the upper surface of the straight plate part, an abutting part is arranged at the end, away from the upper convex part, of the sliding groove, and a V-shaped groove is formed between the side wall of the abutting part and the side wall of the sliding groove; the turning tool structure comprises a blade, a tool apron plate, a sliding block and a first linear driver. An inserting tip is arranged at the end part of the sliding block; and the inserting tip can be adaptively inserted and propped against the V-shaped groove. The first linear driver can push the tool apron plate to transversely move on the base in a reciprocating mode, and therefore the two blades arranged oppositely are driven to independently stretch out and retract. In the turning process, the state that one blade stretches out and the other blade retracts is kept, the problem that in the prior art, a boss-shaped structure collides with a blade in a non-working state can be solved, and the turning blade has better compatibility.

The invention belongs to the technical field of ophthalmologic postoperative rehabilitation instruments, and discloses an ophthalmologic laser postoperative light chopper which comprises two light shading devices, the light shading devices are connected with nose pads and a head band, each light shading device comprises a base frame, the base frame is connected with a lead screw, a first lens frame and a second lens frame, and the lead screw is connected with a driven bevel gear and a pair of linkage blocks. The nose pad is connected with a driving bevel gear, and the driving bevel gear is connected with a spacing knob; anti-dazzling screens are clamped to the base frame, the first lens frame and the second lens frame, the first lens frame and the second lens frame are connected with an outer spline shaft and a connecting shaft, and the outer spline shaft is connected with an angle knob through a spring. The shading sheets are connected to the base frame, the first lens frame and the second lens frame, the shading effect is adjusted by adjusting the distance between the first lens frame and the base frame and the distance between the first lens frame and the second lens frame and adjusting the angle of the first lens frame and the second lens frame relative to the base frame, and the use effect is guaranteed.

The utility model relates to the technical field of hydraulic control, in particular to a pump truck arm support digital multi-way valve, which comprises an oil inlet connector, a reversing connector, a tail connector, a digital controller and a way valve reversing valve plate, a plurality of groups of studs are mounted on the oil inlet connector, an LS pressure relief valve is mounted at one end of the oil inlet connector, and the tail connector is mounted at the other end of the oil inlet connector. A bus temperature sensor and a bus pressure sensor are installed at one end of the tail link, and a manual reversing mechanism is installed at one end of the digital controller. Bus digital control can be achieved through electronic elements such as the integrated digital controller and the sensor, influences caused by factors such as valve element pressure, oil viscosity and pilot pressure can be detected and compensated in real time, system delay can be reduced, system control precision can be improved, and the service life of the system is prolonged. Meanwhile, electronic elements integrated in the system form a multi-way valve safety detection system, and the functions of fault detection, direction indication, LED lamp display and the like can be provided.

The utility model discloses a rotary dehumidifier, which relates to the technical field of dehumidification equipment and comprises a shell, and a rotary wheel is arranged in an inner cavity of the shell. An inner cavity of the shell is provided with a first chamber, a second chamber, a third chamber and a fourth chamber; an axial storage hole is formed in the rotating wheel, and the storage hole is in a honeycomb shape; a moisture absorbent is arranged in the storage hole; a first fan is arranged in the second cavity, a second fan is arranged in the fourth cavity, and a heater is arranged in the third cavity; a first filter screen is arranged in the first cavity, and a second filter screen is arranged in the third cavity. The rotating wheel is simple in structure and reliable in function, airflow in the first cavity and the third cavity is filtered through the first filter screen and the second filter screen respectively, impurities are prevented from entering the rotating wheel, and therefore the service life of the rotating wheel is prolonged and guaranteed. The first filter screen and the second filter screen are respectively inserted into the first cavity and the third cavity and are detachably connected with the shell, so that the filter screens are more efficiently and conveniently disassembled, assembled and overhauled in the later period.

The utility model discloses a grease lubrication gear pump with an upper oil tank, and mainly relates to the field of lubrication pumps. Comprising a pump body, a motor is arranged on one side of the pump body, the pump body is further connected with an oil storage barrel, the oil storage barrel is arranged at the top of the pump body, a barrel cover is arranged at the top of the oil storage barrel, and a gear pump set directly connected with the motor is further arranged in the pump body. The top-mounted oil storage barrel has the advantages that the top-mounted oil storage barrel is adopted, and the problems that a traditional bottom-mounted oil barrel sucks air, and oil at the bottom is accumulated for a long time and wasted or deteriorated are solved; the gear pump set is adopted, a solution is provided for a medium-pressure large-flow grease system, and application and popularization are facilitated.

The utility model relates to a chair backrest inclination control mechanism which comprises a backrest connecting assembly and a handle cushion assembly, sliding grooves are formed in inclined lock seats of the backrest connecting assembly, and a backrest force adjusting elastic strip set is connected between the two inclined lock seats in a clamped mode. An inclined lock seat is provided with a force adjusting handle for adjusting gears of the backrest force adjusting elastic strip group; the handle cushion assembly is pivoted with the inclined lock seat; a gear part is formed on the inclined pull wire module, an inclined gear driver at the other end of the inclined pull wire module is connected with a starter, a gear is in toothed connection with the gear part, and the gear part drives the left / right inclined lock and the sliding groove to be locked / loosened; the driver drives the left / right inclined lock to loosen the sliding groove, and the force adjusting handle is in linkage with the backrest connecting base of the backrest connecting assembly to drive the backrest force adjusting elastic strip set to rotate to the corresponding force gear. The novel adjusting structure is used, the structure is simplified and novel, and the device has the advantages of being reliable in function, low in failure rate and the like.