2044results about How to "Play a limiting role" patented technology

The invention discloses an anti-theft helmet vehicle basket assembly which comprises a vehicle basket body. The electronic lock is arranged in the basket body, an elastic lock pin is arranged at one end of the electronic lock, and the electronic lock can drive the elastic lock pin to stretch out and draw back; the helmet is placed in the basket body and is locked or unlocked by the electronic lock; the turnover cover plate is arranged on the opening side of the basket body in a turnover mode, and a clamping hook is arranged on the inner side of the turnover cover plate; the turning wheel is rotatably arranged in the bicycle basket body, the elastic part is arranged in the bicycle basket body, the two ends of the elastic part are connected with the bicycle basket body and the turning wheel respectively, clamping teeth and notches are arranged on the side periphery of the turning wheel, and when the turning cover plate covers the opening side of the bicycle basket body, the clamping hook presses the turning wheel to rotate, the turning wheel downwards presses the elastic lock pin, and the elastic part gradually deforms. And when the rotating wheel rotates until the clamping teeth are clamped with the clamping hooks, the elastic lock pin recovers deformation and abuts against the notch, and the turning cover plate is locked. The helmet and the turning cover plate can be locked at the same time, and damage to the helmet due to the fact that external personnel open the turning cover plate conveniently is avoided.

The utility model relates to the technical field of batteries, and discloses a battery module and a battery pack, and the battery module comprises a battery cell assembly and a heat management assembly. A plurality of battery cell assemblies are arranged; the heat management assembly comprises a first liquid cooling plate and a second liquid cooling plate which are oppositely arranged as well as cross beams and longitudinal beams which are connected between the first liquid cooling plate and the second liquid cooling plate, the cross beams and the longitudinal beams divide the space between the first liquid cooling plate and the second liquid cooling plate into a plurality of first accommodating spaces, and the plurality of battery cell assemblies are correspondingly arranged in the first accommodating spaces respectively; and the first liquid cooling plate, the second liquid cooling plate, the cross beam and the longitudinal beam are respectively connected with the battery cell assembly in a limiting manner. According to the utility model, the battery cell assembly and the thermal management assembly are integrated, so that the structure of the battery module is more compact, and the energy density of a battery pack is favorably improved; when the battery module is assembled with the battery pack shell, the whole battery module and the battery pack are directly positioned, mounted and fixed at one time, so that the positioning connection of the battery core assembly, the heat management assembly and the battery pack shell can be realized, and the assembly process is saved.

The invention relates to the technical field of milling, in particular to an intelligent manufacturing auxiliary positioning device which comprises a positioning table, a support is fixedly mounted at the upper end of the positioning table, a hydraulic cylinder is fixedly mounted at the upper end of the support, a lifting plate is fixedly mounted at the lower end of the hydraulic cylinder, and a milling device is arranged at the lower end of the lifting plate. When the first clamping plates on the two sides get close to each other to clamp a workpiece, the magnetic movable plates on the two sides can also be driven to move synchronously, when the magnetic movable plates move to the rear side of the magnetic frame, magnetic repulsive force is generated on the magnetic movable plates, the magnetic movable plates are pushed to slide backwards on the first clamping plates, and second springs are compressed; the magnetic movable plate can drive the rotating shaft and the flexible removing roller to synchronously move backwards, and the arranged flexible removing roller can remove chippings adhered to the two to-be-clamped ends of the workpiece and the ends, close to each other, of the first clamping plate, so that the phenomenon that a gap is formed between the first clamping plate and the workpiece due to the adhered chippings is avoided; therefore, the clamping stability of the first clamping plate to the workpiece is guaranteed.

The invention relates to an egg support cleaning line, and relates to the technical field of egg support cleaning, one side of a fixed rack is provided with an egg support placing rack, the inner walls of the two sides of the egg support placing rack are both provided with limiting guide rods, and one sides of the bottoms of the two sets of limiting guide rods are provided with a separating mechanism; the separating mechanism comprises a fixing cover, adjusting rollers, a transmission belt, limiting protrusions and a servo motor, the fixing cover is arranged below the inner walls of the two sides of the egg support containing frame, the adjusting rollers are arranged on the side, away from the inner walls of the egg support containing frame, of the fixing cover, and the outer walls of the two adjusting rollers are sleeved with the transmission belt; the servo motor drives the adjusting roller to rotate so as to drive the transmission belt to rotate, the transmission belt rotates so as to support stacked eggs to achieve a sequential guiding effect, the transmission belt is matched with the transmission chain at the bottom to convey a single group of egg supports, and the transmission belt continues to rotate after conveying, so that the stacked egg supports are separated into independent egg supports to be conveyed. And subsequent independent cleaning work is facilitated.

The invention discloses a relay, which comprises a pair of static contact leading-out ends, a plurality of movable reeds and a plurality of separators, two ends of each movable reed along the first direction are respectively contacted with or separated from the leading-out ends of the pair of static contacts; the first direction is the arrangement direction of the pair of static contact leading-out ends; the moving direction of the movable contact spring is defined as a second direction; the number of the separators corresponds to the number of the movable reeds. Each separator comprises a top part and two side parts, the top part is located on one side, facing the static contact leading-out end, of the movable contact spring, and the two side parts are connected to the two sides, in the third direction, of the top part respectively and extend in the direction away from the static contact leading-out end from the top part; and the two side parts of the separator are respectively positioned on the two sides of the same movable contact spring along the third direction. Wherein the first direction, the second direction and the third direction are perpendicular to one another.

The present invention discloses a horizontal directional drilling device, which relates to the technical field of construction machinery, and comprises a horizontal drilling rig main body, a frame is arranged above the horizontal drilling rig main body, and a hydraulic cylinder is rotatably connected between the horizontal drilling rig main body and the frame, a first connecting member is symmetrically fixed below the middle section of the frame, a second connecting member is arranged at a position corresponding to the first connecting member on the horizontal drilling rig main body, and the first connecting member is rotatably connected with the second connecting member; a first support plate is arranged at one end of the frame, a second support plate is arranged below the first support plate, and a first stabilizing mechanism is arranged at the other end of the horizontal drilling rig main body close to the frame. The present invention can realize the limiting of the front and rear ends of the horizontal directional drilling rig main body, and can greatly improve the stability of the horizontal directional drilling rig main body during the drilling process, and avoid the situation that the entire fuselage is unstable and easy to deviate, thereby ensuring the normal progress of the construction.

The utility model discloses a building material hoisting frame, which relates to the technical field of building construction and comprises a movable base, a hoisting assembly is fixedly mounted at the upper end of the base, a limiting anti-falling assembly is fixedly mounted on the rear side of the front part of the hoisting assembly, and an unloading assembly is fixedly mounted on the left side of the front part of the hoisting assembly. According to the building material lifting frame, building materials can be lifted to different directions according to actual conditions through the lifting assembly, the moving direction of the material receiving box can be limited through the limiting and anti-falling assembly, the material receiving box is made to vertically move up and down all the time, and the lifting efficiency is improved. And the ratchet wheel is matched with the pawl, so that the material receiving box can be clamped when the steel rope has an accident, and the material receiving box is prevented from falling from a high place. And when the lifting frame is lifted to a designated position through the discharging assembly, materials in the material collecting box can be quickly taken out when the discharging plate is opened, and the practicability of the lifting frame is improved.

The utility model discloses a bi-directional sealing grading well cementation device which comprises a grading cementing device and a well cementation rubber plug, a plurality of circulating holes are formed in the grading cementing device, a fixing disc is installed in the grading cementing device in a sliding mode, a cylinder is fixedly installed at one end of the fixing disc, and a sealing ring is installed on the cylinder. A top plate is fixedly installed at the end, away from the fixing disc, of the cylinder, a fixing ring is fixedly installed in the grading cementing device, a baffle is fixedly installed on the inner ring of the fixing ring, a conical block is fixedly installed at one end of the well cementation rubber plug, and a positioning column is fixedly installed at the end, away from the well cementation rubber plug, of the conical block. The cylinder is provided with a positioning assembly used for locking the positioning column. The staged cementing device has the advantages that the staged cementing device is convenient to open through mutual matching of the fixing disc, the cylinder, the top plate, the fixing ring and the baffle, so that staged cementing is realized, and well cementing construction operation is smoothly completed.

The invention relates to the field of medical trachea cannulas, in particular to an anti-slip trachea cannula which comprises an anti-slip cannula mechanism, the anti-slip cannula mechanism comprises a first hose, an elastic tube is fixedly connected to the center of the outer wall of the first hose, and a first ring frame is fixedly connected to the position, close to one end, of the outer wall of the first hose; an inserting pipe is fixedly connected to the outer wall of one end of the first hose, and two limiting rods are fixedly connected to the outer wall of the inserting pipe at equal angles; the expansion limiting mechanism is fixed to the position, close to one end, of the first hose and can limit the end, inserted into the trachea, of the first hose. And the guiding and supporting mechanism is detachably connected to the interior of the first hose and can play a role in supporting and guiding the hose. According to the tracheal catheter, the guiding function can be achieved through the guiding and supporting mechanism, the supporting function and the limiting function on the third ring frame and the elastic tube can also be achieved, the first hose is made of soft materials, a doctor cannot conveniently insert the first hose into the trachea, and the operation convenience is effectively improved.

The utility model discloses a metal plate bending tool, which relates to the technical field of metal plate processing and comprises a working plate, a rotating disc is rotatably connected onto the working plate, symmetrical sliding grooves are arranged on the rotating disc, bending plates are slidably connected into the sliding grooves, and a connecting rod is spirally connected between the bending plates. Nuts are arranged on the two sides of the connecting rod in a sleeving mode, a fixing rod is fixedly connected to one side of the rotating disc, an arc-shaped groove is formed in the working plate, and a limiting block is slidably connected into the arc-shaped groove. According to the metal plate bending device, the rotating disc rotates through the grip, then a metal plate can be bent through the two sets of bending plates, when the rotating plate rotates to a certain angle, the arranged fixing rod is connected with the limiting block, the limiting block has a limiting effect on the rotating angle of the rotating plate, and the bending degree of the two sets of bending plates to the metal plate is kept within a set range; and then the grip is released, the metal plate is continuously fed, and the operation is repeated, so that the metal plate can be gradually bent into an arc shape.

The utility model discloses an edible fungus inoculation device convenient to operate, which comprises an inoculation cylinder, an inoculation mechanism is arranged on the inoculation cylinder and is used for facilitating edible fungus injection inoculation, the inoculation mechanism comprises a device cylinder, a rotating seat, a motor, a screw rod and a piston, the device cylinder is arranged at one end of the inoculation cylinder, the rotating seat is screwed in the device cylinder, and the motor is arranged on the rotating seat. The motor sleeves the rotating seat, the screw rod sleeves the output end of the motor, the piston is slidably connected to the screw rod, the screw rod is driven by the output end of the motor, so that the driving gear rotates to drive the driven gear to rotate, and the propeller rotates in the stirring box; the liquid edible fungi are prevented from precipitating or the liquid edible fungi with the precipitating phenomenon are fully shaken up, so that protective colloid is uniformly distributed, a control switch is pressed down to enable the liquid edible fungi to flow into the inoculation barrel from the feeding pipe, a key is pressed down to enable the motor to rotate anticlockwise, the inoculation barrel is filled with the liquid edible fungi, and the edible fungi are inoculated into the inoculation barrel. And the usability of the equipment is improved.

The utility model discloses an e-commerce logistics storage automatic lifting box which comprises a mounting frame, longitudinal frameworks are welded to the front and the rear of the two sides of the top of the mounting frame, a storage box body is slidably connected among the four longitudinal frameworks, and transmission rollers are rotatably connected to the front and the rear of an inner cavity of the storage box body. The right end of the transmission roller penetrates to the right side of the storage box body, and a first motor is fixedly installed on the rear side of the right side of the storage box body. Goods are placed through matched use of the storage box body and the transmission belt, the storage box body can be lifted up and down through matched use of the longitudinal framework, the rectangular groove, the second motor, the threaded rod and the threaded sleeve, and the storage box body can be lifted up and down through matched use of the transmission roller, the first motor and the transmission belt. Goods on the top of the transmission belt can be automatically conveyed to be separated from the inner cavity of the storage box body, and the purpose that the goods are transferred and placed more conveniently can be achieved.

The invention provides an edible agricultural product traceability accurate scanning device, and relates to the technical field of automatic identification and data acquisition equipment.The edible agricultural product traceability accurate scanning device comprises a code scanner and a conveying belt device for conveying agricultural products, a base mechanism is installed on the side face of the conveying belt device, and a supporting frame mechanism is installed on the code scanner; the base mechanism comprises an installation base, a clamping plate, a bottom frame and two adjusting rods, the supporting frame mechanism comprises a longitudinal rod, a transverse rod and a sliding sleeve, when the agricultural product code scanning traceability device is used, the agricultural product code scanning traceability device can be hung on side plates on the two sides of conveying belt equipment and can also stand on the ground for agricultural product code scanning traceability, the two use modes are convenient to switch, and the stability is enough; when the installation base is installed in the mode that the installation base is hung on the side plate, the effects of abutting against the bottom and clamping the side plate are achieved respectively, when the installation base is placed on the ground, the bottom face of the bottom frame is flush with the bottom face of the clamping plate, the levelness of the installation base is not affected, and the bottom frame and the clamping plate play different roles in different installation modes.

The thread rolling machine capable of preventing the stud from rotating comprises a base, a bottom plate is fixedly installed on the inner side of the base, a movable table is movably arranged on the top of the bottom plate, a sliding rail is fixedly connected to one side of the top of the movable table, a two-way screw rod is rotatably installed in the sliding rail, and the two-way screw rod is fixedly connected to the bottom of the base. The two ends of the two-way screw rod are respectively provided with a sliding rail, one end of the two-way screw rod is detachably provided with a first hand-cranking wheel, the two sides of the surface of the two-way screw rod are respectively provided with a sliding piece sliding on the surface of the sliding rail in a threaded mode, and the top of each sliding piece is fixedly connected with a clamping arm. A structure for clamping and positioning the stud is additionally arranged, so that the stud cannot rotate along with the rotation of a machine during thread rolling, the precision of thread rolling of the stud is improved, the machining quality of the stud is improved, and convenience is provided for work and use of a user.

The utility model relates to the technical field of rice noodle processing, in particular to a fixed-length cutting device for straight rice noodles, which comprises a cutting part, a rotating shaft is rotationally mounted at an opening of the bracket, a plurality of cutting knives which are distributed at equal intervals and are used for cutting the straight rice noodles are coaxially connected to the rotating shaft through keys, and the cutting knives penetrate through the corresponding cutting grooves and protrude to the upper part of the cutting platform; through the arrangement of the cutting platform and a plurality of electric rollers, rice noodles can be driven to horizontally move along the cutting platform through rotation of the electric rollers, a baffle at the top of the cutting platform plays a role in limiting movement of the rice noodles, when a plurality of cutters rotate and horizontally move along a cutting groove, the rice noodles can be cut for multiple times, and the cutters are distributed at equal intervals, so that the cutting efficiency is improved. Therefore, fixed-length cutting of the rice flour can be realized; by means of the design, rice flour can be cut multiple times at the same time, the processing efficiency is improved, fixed-length cutting of the rice flour is achieved, and the processing quality of the rice flour is guaranteed.

The invention provides a hoisting pulley, and relates to the technical field of hoisting. A lifting hook and a steel wire rope are mounted on the pulley assembly; the positioning assembly is installed on the pulley assembly and used for positioning the combined pulley assembly. The detection assembly is installed on the pulley assembly and used for detecting the abrasion degree of the pulley assembly. The protection assembly is mounted on the pulley assembly and is used for protecting the detection assembly; the upper movable detection head is in contact with the steel wire rope, the lower movable detection head is in contact with the lifting hook, and the two movable detection heads are in clearance fit connection with the rectangular mounting block. According to the hoisting pulley, a worker can conveniently replace seriously-abraded accessories in time, and the safety in the hoisting process is improved; the hoisting pulley solves the problems that when the pulley and a lifting hook are seriously abraded, workers cannot find the abrasion in time, replacement of accessories is prone to being delayed, and potential safety hazards exist in the hoisting process.

The utility model relates to the technical field of molybdenum wire bending, and discloses an S-shaped molybdenum wire bending and fixing device which comprises a power mechanism, a bending mechanism and an auxiliary mechanism, the bending mechanism is located above the power mechanism, the auxiliary mechanism is located above the power mechanism, the power mechanism comprises a workbench, and the workbench is located above the bending mechanism. A motor containing base is fixedly connected to the upper surface of the workbench, an air cylinder is fixedly connected to the inner surface of the motor containing base, a rack is fixedly connected to the end of the air cylinder, a sliding fixing block is slidably connected to the surface of the air cylinder, and a supporting base is fixedly connected to the upper surface of the workbench. According to the molybdenum wire bending device, the air cylinder is arranged, the air cylinder is started to enable the rack to move front and back and be meshed with the surface of the rack at the same time, the rack is meshed with the gear below the meshed rotating ring to enable the rack to rotate, the rotating ring rotates along with the gear, the limiting effect is achieved, and meanwhile a molybdenum wire is placed on the inner sides of the two bending rotating shafts; and the molybdenum wire is bent into an S shape while rotating.

The invention belongs to the technical field of air texturing machine water supply, and particularly relates to an air texturing machine water supply device capable of achieving accurate metering, the air texturing machine water supply device comprises a water supply cavity, a metering cavity and an intelligent metering system, the water supply cavity comprises a filament spray pipe and a nozzle, and the metering cavity comprises an air compressor, an air pipe, a water pipe, a valve cavity and a deformation pipeline; the filament spray pipe is fixedly installed above the inner wall of the water supply cavity, filaments are sprayed into the filament spray pipe, a filament hole is formed in the right side of the water supply cavity, the filaments are inserted into the filament hole, the nozzle bearing is installed on the inner wall of the water supply cavity and located on the left side of the filaments, and the metering cavity is fixedly installed on the left side of the water supply cavity. The air compressor is fixedly installed on the left side of the inner wall of the metering cavity, and the device solves the problems that an existing air texturing machine is not accurate enough in water metering and conveying, poor in metering precision, high in energy consumption, poor in adaptability, poor in management and the like, and particularly solves the problem that the filament production quality cannot be guaranteed.

The utility model discloses a quickly assembled net cage floating body for mariculture, the net cage floating body for mariculture is in a square shape, the net cage floating body for mariculture is composed of four groups of culture platforms, each group of culture platform is composed of a buoy, a group of support plates and a walkway plate, the walkway plate is supported by a group of support plates, the supporting plates and the walkway plate are fixed in a bonding mode, a set of floating barrels are arranged between every two adjacent PVC supporting plates, the floating barrels and the supporting plates are fixed in a bonding mode, and the net cage floating body for mariculture has the advantages of being reasonable in structural design and rapid and efficient to assemble.

The utility model discloses a mine sand making machine crushing vortex motion cavity which comprises a shell, a bottom plate is arranged at the bottom of the shell, a middle hole is formed in the middle of the surface of the bottom plate, and an annular plate detachably connected with the inner cavity of the shell is arranged at the position, above the bottom plate, of the inner cavity of the shell. A plurality of lining plates which are distributed in a circumferential array and are detachably connected are arranged between the bottom of the annular plate and the upper surface of the bottom plate, and a plurality of rib plates which are distributed in a circumferential array are arranged on the upper surface of the annular plate. According to the crushing vortex motion cavity, due to the arrangement of the rib plates, abrasion of stone to the cavity wall can be reduced, the service life of the crushing vortex motion cavity is prolonged, and due to the fact that the rib plates are fixedly connected with the annular plate through the screws, the damaged rib plates can be replaced conveniently, and maintenance cost is greatly saved.

The utility model discloses a drencher with an expansion structure, which relates to the technical field of medical instruments for livestock and comprises a mounting ring and an expansion component, a medicine storage tube is arranged in the mounting ring, and the expansion component for expanding the mouth of the livestock is arranged outside the mounting ring. The expansion assembly comprises an expansion plate, an auxiliary frame, a control rope, a connecting plate, a pull ring and a holding handle, the auxiliary frame is installed on the surface of the left side of the expansion plate, the control rope is installed on the surface of the expansion plate, the connecting plate is arranged outside the control rope, the pull ring is installed at the end of the control rope, and the holding handle is installed at the lower end of the expansion plate. According to the drencher with the expansion structure, the expansion plates can be rotationally opened and closed on the two sides of the mounting ring through the rotating shafts, the expansion effect on the oral cavity of animal husbandry is achieved through the expansion plates, the situation that the animal husbandry bites and holds the medicine storage pipe to cause falling of the medicine storage pipe is avoided, the situation that a veterinarian needs to manually open the oral cavity of the animal husbandry to feed medicine is avoided, and the medicine feeding safety is improved.

A light guide assembly comprises an outer sheath assembly extending front and back, a single optical fiber installed in the outer sheath assembly, a light inlet end assembly and a light outlet end assembly, the light inlet end assembly and the light outlet end assembly are fixedly installed at the front end and the rear end of the outer sheath assembly respectively, and the light inlet end assembly comprises a light inlet sleeve and a lens fixedly assembled in the light inlet sleeve. The lens is coupled with a front-end light spot of the single optical fiber, the light-emitting end assembly comprises a light-emitting sleeve and a light guide device fixedly arranged in the light-emitting sleeve, and the light guide device is coupled with a rear-end light spot of the single optical fiber. Light guiding is achieved through the single optical fiber, the lens and the light guiding device, the price of the light guiding assembly is reduced, the weight is light, and the service life is long when the light guiding assembly is applied to the high-temperature environment.

The utility model provides a wire passing device and an air conditioner. The wire passing device comprises a limiting piece and a limiting buckle. The limiting piece is provided with a first wire passing hole. The limiting buckle comprises a connecting part, a limiting part and a first elastic part, one end of the connecting part is connected with the limiting piece, the other end of the connecting part is connected with the limiting part, the connecting part is provided with a second wire passing hole correspondingly communicated with the first wire passing hole, and the limiting part is provided with a third wire passing hole correspondingly communicated with the second wire passing hole; the outer diameter of the limiting part and the outer diameter of the connecting part are both smaller than that of the limiting part, the first elastic part is arranged on the outer side wall of the limiting part and extends in the radial direction of the limiting part and close to one side of the limiting part, and the outer diameter of the end, close to the limiting part, of the first elastic part is larger than that of the connecting part. According to the wire passing device, it can be guaranteed that assembly between the wire and the wire passing device is not limited by the operation space, meanwhile, in the wire penetrating and pulling process of the wire, fixing and wire penetrating operation of the wire passing device are efficiently achieved, and operation is easy and convenient.

The utility model relates to the technical field of pesticide quality detection, in particular to a pesticide quality detection pesticide taking device which comprises a pesticide taking assembly, and a connecting rod is inserted into one side of the pesticide taking assembly in a penetrating mode. And the limiting assembly comprises a connecting rod, a handle is installed on the outer side of the connecting rod, and a first bevel gear is connected to the inner side of the connecting rod. According to the pesticide taking device, through the arrangement of the limiting assembly, the limiting plate is exposed out of the pull rod, the limiting effect is achieved, the pull rod is prevented from moving towards the needle tube head, the situation that pesticide flows out due to the fact that the pull rod is affected by external force is avoided, and through the arrangement of the rubber tube and the temporary storage barrel, during pesticide taking, the rubber tube makes contact with the pesticide, and the pesticide taking barrel is prevented from being soaked in the pesticide; after the pesticide is taken, the needle tube head faces upwards, the pull rod continues to be pulled in the direction of the holding rod, the pesticide in the pesticide taking barrel finally flows into the temporary storage barrel, the pesticide is convenient to carry, and the pesticide is prevented from flowing and spilling out in the pesticide taking barrel.

The invention discloses an X-axis sliding mechanism of an electromagnet glass slide rack, comprising a glass slide rack platform integrated part composed of a connecting plate and a double-arm bracket, the lower surface of the connecting plate is connected to the X-axis bottom plate through an X-axis slide rail assembly, a push block is provided on the connecting plate, and a displacement sensor and a limit device are respectively provided on the front and rear sides of the X-axis slide rail assembly; a support plate is provided on the left forearm of the double-arm bracket, an electromagnet seat is installed on the right forearm of the double-arm bracket, an electromagnet coil, a small magnet block and a neodymium magnet block are embedded on the electromagnet seat, the glass slide rack is horizontally inserted in the double-arm bracket, and the glass slide rack is supported on the support plate and the right side block. The invention realizes the preliminary positioning of the glass slide rack by the small magnet block and the neodymium magnet block, realizes the complete fixation of the glass slide rack by the electromagnet coil, so that the glass slide rack and the glass slide rack platform integrated part temporarily form a whole, which not only ensures the stability of the glass slide plane during scanning and improves the scanning quality, but also has novel conception, compact structure, reliable performance and easy operation.

The pot cover assembly comprises a lining cover, a top face cover located above the lining cover and a side face cover surrounding the periphery of the lining cover, the top face cover and the lining cover are of an integrally-formed structure, a fixing buckle is arranged on the inner circumferential face of the side face cover, a matched buckle matched with the fixing buckle is arranged on the circumferential side of the lining cover, and the side face of the lining cover is provided with a matched buckle matched with the matched buckle. And the side cover is clamped and fixed on the lining cover. According to the pot cover assembly, the top surface cover and the lining cover are integrally formed, so that the lining cover and the top surface cover can be processed at the same time through one-time processing, use of a pair of molds is reduced, the step of follow-up assembly of the top surface cover and the lining cover is omitted, meanwhile, the number of parts is reduced, the overall processing and manufacturing difficulty of the pot cover assembly is greatly reduced, and the manufacturing cost is saved. The side cover is fixedly clamped with the lining cover and is not connected with the top surface cover, so that a complicated fixing structure does not need to be arranged on the top surface cover, the smoothness of the top surface cover is improved, and the probability that flow marks appear on the top surface cover in the injection molding process can be further reduced.

The utility model relates to a crusher for wood chip processing in the technical field of wood chip processing, which comprises a crushing box and a driving box fixedly connected to one side, a driving assembly is arranged in the driving box, and a first rotating rod and a second rotating rod are rotatably connected in the crushing box. And the surfaces of the first rotating rod and the second rotating rod are fixedly sleeved with a plurality of first crushing blades. Through cooperative use of a crushing box, a driving box, a driving assembly, a first rotating rod, a second rotating rod, first crushing blades, a discharging opening, a smashing box, a rotating shaft, a gear, second crushing blades and a screening net, the multiple first crushing blades can be conveniently driven to rotate, and primary crushing of wood chips is achieved; the crushed wood chips pass through the screening net, large wood chips fall into the crushing box through the inclination of the screening net, meanwhile, the wood chips which are not crushed completely can be repeatedly crushed conveniently, and the crushing efficiency of the wood chips is improved.