87results about How to "Achieve relatively fixed" patented technology

The invention discloses an automatic rotation observation and analysis device for a bearing part, and the device comprises a pedestal which is provided with a rotating disc and a driving part which is used for driving the rotating disc to rotate axially. An inner clamp used for fixing an outer bearing inner ring to be detected and an outer clamp used for being matched with the inner clamp to fix an outer bearing outer ring to be detected are arranged on the surface of the rotating disc, and an adjusting structure used for adjusting the distance between the inner clamp and the outer clamp to adapt to the outer bearing inner rings or the outer rings of the outer bearings to be detected with different diameters is arranged on the rotating disc. The problems that in the prior art, when a failure bearing part is detected, the bearing part needs to be manually driven to operate, and the detection precision is low are solved.

The utility model relates to the technical field of bag drying machines, in particular to an internal mold positioning structure of a bag drying machine, and mainly solves the technical problem that a molded product is easy to damage when an internal mold is detached in the conventional internal mold positioning structure of the bag drying machine. The inner mold positioning structure of the dry bag machine comprises an inner mold sleeve, a lower plug, an elastic piece, a positioning ball and a pressing head, a containing groove is formed in the bottom face of the lower plug, a clamping groove is formed in the top face of the pressing head, and the positioning ball is clamped in the containing groove and the clamping groove at the same time so that the inner mold sleeve and the pressing head can be relatively fixed; when the inner die sleeve needs to be detached, only the inner die sleeve needs to be horizontally moved, the positioning ball further compresses the elastic piece under the action of extrusion force of the clamping groove and is completely placed in the containing groove at the same time, and therefore relative fixation of the lower plug and the pressing head is relieved. According to the structure, when the inner die sleeve is disassembled, the inner die sleeve does not need to be vertically lifted, so that a formed product can be prevented from being damaged by the lifting action of the die; in addition, the positioning balls can be automatically clamped or separated under the action of the elastic pieces, and mounting and dismounting are more convenient.

The utility model provides a cervical exfoliated cell collector. The cervical exfoliated cell collector comprises a rubber tube, a sampling rod and a clamping structure, wherein the rubber tube is used for containing preserving fluid and is of a tube body structure with an open upper end and a closed lower end, and the upper end of the rubber tube is detachably connected with a cover body; a through hole is formed in the cover body, and a thin film is arranged in the through hole; the sampling rod is used for puncturing the film and inserting into the rubber tube, and the inserting end is connected with a brush; a blocking disc is arranged at the upper end of the sampling rod, and the clamping structure is arranged between the blocking disc and the cover body; when the moving stopping disc is connected with the cover body through a clamping structure, the moving stopping disc can rotate relative to the cover body by taking the sampling rod as a shaft. After the sampling rod is inserted into the rubber tube and the moving stopping disc is connected with the cover body through a clamping structure, the rubber tube can be pinched by a hand, and meanwhile, the sampling rod is rotated, so that a cell sample is quickly separated from the hairbrush and immersed into the preserving fluid. According to the cervical exfoliated cell collector provided by the invention, the collection efficiency of cervical exfoliated cells can be improved, and the collection effect of the cervical exfoliated cells is ensured.

The application relates to an oral mucosa modeling auxiliary scanning positioning device, and belongs to the technical field of denture modeling. The device solves the problem of inaccurate denture modeling caused by scanning deviation of the oral mucosa of a patient in the prior art. The oral mucosa modeling auxiliary scanning positioning device comprises a first positioning main body, a second positioning main body and a supporting structure, the supporting structure is supported between the first positioning main body and the second positioning main body, the first positioning main body and the second positioning main body are used for being sleeved outside the upper and lower alveolar ridge mucosa of a patient respectively, and the first positioning main body and the second positioning main body are respectively provided with a first positioning mark and a second positioning mark on the opposite sides. The application realizes the support of the oral cavity of the patient during oral mucosa scanning and provides a scanning positioning reference, and the accuracy of oral mucosa scanning of the patient is improved.

This utility model discloses a low-resistance, sound-absorbing, enhanced composite fiberglass duct, comprising a duct body and a sound-absorbing inner tube. The duct body includes, from the inside out, a porous aluminum plate layer, a first fiberglass cloth layer, a glass fiber layer, a second fiberglass cloth layer, and an outer protective color steel layer. The surface of the porous aluminum plate layer has multiple equidistantly distributed strip-shaped grooves, and ventilation holes are provided on the inner walls of both sides of the strip-shaped grooves. The sound-absorbing inner tube includes two pairs of upper supports, two pairs of lower supports, a first sound-absorbing aluminum tube, a fiberglass ring, and a second sound-absorbing aluminum tube. By setting the strip-shaped grooves and ventilation holes, the contact area between the airflow and the porous aluminum plate layer can be increased, allowing the glass fiber layer to better absorb sound waves. By setting the sound-absorbing inner tube, sound waves will contact the second and first sound-absorbing aluminum tubes from both the inside and outside sides respectively. Finally, the fiberglass ring can further reduce noise. This utility model effectively improves the sound absorption and noise reduction effect when the wind speed is high or the noise level is high.

This utility model discloses a stage lighting device for stage use, relating to the field of lighting technology. It includes a base, a first support rod, a lamp body, a first support seat, and a protective cover located directly above the lamp body. An elastic support component connects the upper end of the first support seat to the base, and a second support rod is fixed between the protective cover and the first support seat. Through the coordinated arrangement of the first support seat, the protective cover, and the elastic support component, under normal use, the compression spring is compressed under the weight of the base, the first support rod, and the lamp body, and the protective cover is located directly above the lamp body, without affecting the lighting effect. When the device accidentally tips over, the gravitational force of the base, the first support rod, and the lamp body is insufficient to keep the compression spring compressed. The spring returns to its original position under its own elastic force, placing the lamp body inside the protective cover, thus preventing the lamp body from colliding with external objects and better protecting it.

The utility model discloses an auxiliary fixing device for an oil well pump of an industrial oil drum, which comprises a fixing cylinder used for an oil well pump to extend into and fix the oil well pump and comprising an insertion cylinder arranged at the bottom and used for being inserted into an oil drum opening, the peripheral wall of the insertion cylinder is provided with a receding opening, and a tensioning block is hinged to the receding opening; the threaded clamping sleeve is in threaded connection with the fixing cylinder, and the threaded clamping sleeve is used for being matched with the tensioning block in the open state to clamp the edge of the oil drum opening; and the elastic reset piece is used for applying elastic acting force to the tensioning block in the contracted state. The oil well pump can be inserted into the fixing cylinder to be fixed, and fixing is more convenient; the fixing cylinder can utilize the threaded clamping sleeve to be matched with the tensioning block in the open state to clamp the edge of the oil drum opening, so that the positions of the fixing cylinder and the oil drum are fixed, the oil well pump and the oil drum are relatively fixed, shaking of the oil well pump is reduced, the oil well pump does not need to be held manually during oil pumping, two hands can be omitted for operation, and operation is more convenient.

This invention provides a lifting device and method for lifting steel ladle nozzle bricks, including a vertical shaft, a lifting ring, a support member, and a sliding member. The lifting ring is fixed to the top of the vertical shaft, and the support member is coaxially fixed to the bottom of the vertical shaft. The sliding member is coaxially slidably sleeved on the vertical shaft, and the sliding member can rotate around the central axis of the vertical shaft. Multiple vertically rotatable support legs are evenly distributed around the outer circumference of the sliding member. Multiple first receiving grooves for accommodating the support legs are evenly distributed around the outer circumference of the support member. When the support leg is located in the first receiving groove and the sliding member slides to the lowest position, the horizontal distance from the bottom of the support leg to the central axis of the vertical shaft is less than the minimum radius of the inner hole of the nozzle brick. When the support leg is removed from the first receiving groove and the sliding member slides to the lowest position, the horizontal distance from the bottom of the support leg to the central axis of the vertical shaft is greater than the minimum radius of the inner hole of the nozzle brick. The device of this invention has a simple structure and is easy to operate. Simply moving the support leg into or out of the first receiving groove switches the lifting device from the engaged state to the locked state, ensuring stable lifting.

The invention discloses an anti-rollover protection structure of a constant-temperature wine cabinet. The anti-rollover protection structure comprises a cabinet body, the limiting mechanism comprises a rectangular groove formed in the lower end of the cabinet body, a lifting plate capable of ascending and descending is arranged in the rectangular groove, the lower end of the lifting plate is fixedly connected with a limiting base, rectangular sliding grooves are formed in the two sides of the limiting base correspondingly, and rectangular inserting strips capable of sliding are arranged in the two rectangular sliding grooves correspondingly; the device comprises a limiting seat, a trigger mechanism is arranged in the limiting seat, a mounting plate is mounted on the ground, two first vertical plates are symmetrically and fixedly connected to the upper end of the mounting plate, and rectangular openings are formed in the two first vertical plates. When the protection structure is used, the situation that the wine cabinet rolls over can be effectively avoided, the actual safety is improved, in addition, when the protection structure operates, the bottom of the wine cabinet can be completely sealed, and the situation that dust and impurities enter the bottom of the wine cabinet is avoided.

The application discloses a three-dimensional posture corrector with wrist protection function, and belongs to the technical field of sitting posture correction. The three-dimensional posture corrector with wrist protection function comprises a writing board and a supporting piece. The writing board has an upwardly inclined writing surface. The supporting piece is arranged on the lower end surface of the writing board, the upper end surface of the supporting piece abuts against the writing board, and the lower end surface of the supporting piece is horizontally arranged. One end of the writing board is upwardly and obliquely extended, the other end of the writing board extends along a first direction and a second direction, and a transition surface is formed in the first direction and the second direction. The writing board comprises a supporting structure formed by the extension of the transition surface, and at least part of the lower end surface of the supporting structure is located on the same horizontal plane as the lower end surface of the supporting piece. The supporting structure is formed by the outward extension of the transition surface, and can be used for placing the wrist and / or the elbow, so as to improve the situation that the wrist or the elbow is suspended or pressed against the side edge of the writing board, improve the use comfort of the writing board, and improve the posture correction effect.

The utility model discloses pavement crack grouting equipment, and relates to the technical field of pavement crack grouting. The grouting device comprises a bottom plate, a fixing block is arranged on the surface of the bottom plate, the fixing block is fixedly connected with the bottom plate, a sliding groove is formed in the fixing block, the grouting device is arranged in the sliding groove, and the grouting device can slide in the length direction of the sliding groove or can be fixed in the sliding groove. The sliding groove is formed in the fixing block, the sliding block is installed in the sliding groove in a sliding mode, the grouting pipe can slide in the sliding groove through the sliding block, the sliding groove only penetrates through one face of the fixing block, the sliding block can be clamped in the sliding groove, and relative fixing of the grouting pipe in the sliding groove is achieved. The problems that when existing grouting equipment is used, a grouting machine needs to be held all the time, when a grouting gap needs to be long, large pressure can be caused to the hand of a worker, and inconvenience is brought to a user are solved.

The utility model provides an inner hole tensioning device. The inner hole tensioning device comprises a shell, a telescopic driving piece, a plurality of connecting rod assemblies and a plurality of extrusion blocks. The shell is of a long cylindrical structure, the shell is provided with a first end and a second end which are opposite to each other, and the first end is provided with a lifting hole; the telescopic driving piece is arranged at the second end, and the telescopic end of the telescopic driving piece is in sliding fit with the inner cavity of the shell along the long axis of the shell. The multiple connecting rod assemblies are evenly distributed around the periphery of the shell, and the transmission ends of the multiple connecting rod assemblies are connected with the telescopic end. And the plurality of extrusion blocks are respectively connected with the driven ends of the corresponding connecting rod assemblies. According to the inner hole tensioning device provided by the utility model, the mode of expanding the inner hole of the rotor is more stable, the inner hole of the rotor is tensioned by the plurality of extrusion heads, the stability of the rotor in the moving process is ensured, the moving difficulty is reduced, and the overall production efficiency of the rotor is improved.

The utility model relates to a base connecting piece, which is used for mounting a low-intermodulation cable clamp on a three-direction feeder mounting bracket, and comprises a first elastic clamping block, a second flat plate, a third vertical plate, a fourth mounting plate, a fifth vertical plate, a sixth flat plate and a seventh elastic clamping block which are connected in sequence, the first elastic clamping block and the seventh elastic clamping block jointly form a clamping piece corresponding to the mounting hole, a butt joint protrusion is arranged on the outer side of the fourth mounting plate, the cross section of the butt joint protrusion is in a T shape matched with the butt joint groove, an elastic clamping plate is arranged on the outer side of the butt joint protrusion, and the elastic clamping plate is in a T shape matched with the butt joint groove. A clamping block which protrudes outwards and is matched with the clamping groove is arranged on the outer side of the elastic clamping plate; according to the utility model, on the basis of not changing the structures of the low-intermodulation cable clamp and the three-direction feeder line mounting bracket, the low-intermodulation cable clamp can be quickly mounted on the three-direction feeder line mounting bracket.

The invention relates to the technical field of power supply lightning protection devices, in particular to a power supply lightning protection device convenient to replace. The lightning protection device comprises a base and a lightning protection module. A mounting groove used for mounting the lightning protection module is formed in the base, the lightning protection module is in clearance fit with the mounting groove, the lightning protection module comprises a shell and two plugs, the two plugs are located on the two opposite side walls of the shell respectively, the plugs are in sliding connection with the shell so that the plugs can stretch out and draw back, and jacks are formed in the two opposite side walls of the mounting groove. A connector is arranged in the jack, the plug can be inserted into the jack and connected with the connector, the lightning protection module further comprises an operating mechanism with an operating rod, and the operating rod is connected with the plug and pushes the plug to move through external operation. The lightning protection module can be conveniently and rapidly replaced, and the maintenance efficiency can be improved.

The utility model relates to the technical field of electronic cigarette production, and discloses a press-fit device and an electronic cigarette production line, which comprise a press plate, a pressing plate, a pressing plate and a pressing plate, the pressing head is provided with a second inserting part, the second inserting part is used for being connected with the first inserting part in an inserting mode, and the first inserting part is provided with a first magnet used for attracting the second inserting part; the lifting device is used for driving the pressing plate to ascend and descend in the set direction so that the pressing head can be pressed on the workpiece. According to the pressing device and the electronic cigarette production line, the production cost of electronic cigarettes can be reduced to a certain extent, and the production efficiency of the electronic cigarettes is improved.

The utility model discloses a rear air spring assembly positioning structure, including the rotation cover and rear air spring main body that can rotate oppositely, the rotation cover is detachable fixed with rear air spring main body through at least one positioning pin, and the positioning pin one end can be inserted into the rotation cover circumference, and the positioning pin other end can be inserted into the air cock on rear air spring main body. In the utility model, through the setting of positioning pin, the positioning pin one end can be matched with the rotation cover's circumference gap, and the other end of positioning pin is inserted with the air cock, thereby can realize the relative fixation of rotation cover and rear air spring main body, guarantees the relative fixation of the upper installation mouth on the rotation cover and rear air spring main body upper and lower installation mouth when rear air spring assembly is assembled with whole vehicle, thereby has met the assembly demand of rear air spring assembly and whole vehicle.

The utility model discloses a rope bridge building fixer, which relates to the technical field of rope bridge building and comprises a fixing plate, a ground nail is arranged on the fixing plate in a penetrating manner through a first fixing hole, an eyebolt is further arranged on the fixing plate in a penetrating manner through a second fixing hole, and the eyebolt is fixed through a fastening nut. And a reinforcing mechanism is arranged on the inner side of each group of eyebolts. The rope bridge building fixator is small, light and convenient to carry and move, consumption of manpower and material resources is reduced, a rope bridge bearing cable can be stably fixed to the grounds of the two banks through matched arrangement of the fixing plate, the ground nails and the eyebolts, the fixing position of the bearing cable can be conveniently transferred and adjusted, and the use flexibility is effectively improved; and through the arrangement of the reinforcing assembly, the connection of the eyebolt and the fixing plate can be reinforced in an auxiliary mode through the insertion connection of the insertion rod and the insertion hole, and then the fixing effect on the end face of the bearing cable is enhanced.

The utility model relates to the technical field of magnet preparation molds, and discloses a multi-pole radial magnetic ring mold, which comprises a sleeve body, a plurality of radial magnetic rings and a plurality of radial magnetic rings, the multiple magnet structures are arranged on the outer side of the sleeve body, and the multiple magnet structures are distributed in the circumferential direction of the sleeve body at intervals; the shielding blocks are arranged on the outer side of the sleeve body, the number of the shielding blocks is equal to that of the magnet structures, and each shielding block is located between every two adjacent magnet structures. The magnet structures are arranged on the outer side of the sleeve body, the magnet structures generate an external orientation magnetic field, the magnet ring is oriented in the forming process of the magnet ring, the magnet structures are distributed in the circumferential direction of the sleeve body at intervals so that the magnet ring can be of a multi-pole radial structure, and one shielding block is arranged between every two adjacent magnet structures so that the trend of the magnetic field can be changed; the interference of a magnetic field on a concave mold cavity is reduced, so that the orientation force at the joint of two adjacent magnetic poles on the magnetic ring is reduced, the influence on a formed blank is reduced, and the phenomenon that the sintered magnetic ring cracks is reduced.

The invention discloses an inclined drilling machine tool, and belongs to the technical field of drilling equipment. Comprising a machine body, the machine body is a radial drilling machine and comprises a base, a lifting rotating mechanism and a transverse sliding mechanism, a jig mechanism is arranged on the upper side of the bottom of the base and comprises an adjusting device and a clamping assembly, the adjusting device comprises an inclined assembly and a rotating assembly, the inclined assembly comprises a stand column, a ball, a sleeve shell and a supporting disc, and the rotating assembly is arranged on the bottom side of the supporting disc; the clamping assembly is arranged at the top of the sleeve shell, the rotation assembly comprises three telescopic cylinders, a ring body and a driving part, balls are embedded in the top ends of the telescopic cylinders in a rolling mode, and a limiting mechanism is arranged on the sleeve shell and used for limiting the relative positions of the sleeve shell and the ball. The problems that when inclined hole machining operation is carried out, the clamping angle of a workpiece and a jig mechanism needs to be adjusted, operation is troublesome, clamping is not firm easily when a clamping part of the workpiece is replaced, and the precision of punching operation is affected are effectively solved.

The utility model relates to the technical field of boilers, in particular to a boiler which comprises connecting blocks installed on a pair of opposite side edges of a boiler body, two installation bases, clamping plates horizontally sliding relative to the pair of opposite side edges of the boiler body and attached to the side edges of a boiler body, and limiting blocks installed on the other pair of opposite side edges of the boiler body and attached to the front end face and the rear end face of the boiler body. An arc-shaped rotating block attached to the outer surface of the pot body is rotationally arranged in the mounting base, an extending block with a through groove formed in the surface is integrally formed on the arc-shaped rotating block, and the arc-shaped rotating block, a steel belt hoop and a limiting block are arranged so that in the assembling process of the pot body and the furnace body, after the two clamping plates are tightly attached to the surface of the pot body, the through groove can be formed in the extending block; omnibearing wrapping and covering of the two ends of the pot body are achieved, then relative fixing of the vertical positions of the pot body and the stove body is achieved, and the situation that when water in the pot body is boiled, generated vibration drives the pot body to vibrate, and consequently relative displacement of the pot body and the stove body is caused is avoided.

The utility model discloses a split handlebar structure and a carrier. The split handlebar structure comprises a handlebar transverse combination, a handlebar vertical combination and a fastening assembly. The handlebar assembly comprises a handlebar transverse pipe and an upper gland, and the upper gland is welded and fixed to the upper side portion of the handlebar transverse pipe. The handlebar stem assembly comprises a handlebar stem and a lower gland, and the lower gland is welded and fixed to the upper end of the handlebar stem. The upper gland and the lower gland are fixed through a fastening assembly, and installation holes for the fastening assembly to penetrate through are formed in the upper gland and the lower gland. In the utility model, the upper gland welded on the handlebar horizontal pipe is fixedly connected with the lower gland welded on the handlebar vertical pipe through the fastening component, so that the handlebar horizontal pipe and the handlebar vertical pipe are relatively fixed. The connecting structure does not need to be provided with a knurling structure, the machining difficulty is reduced, and the machining cost is reduced.

The utility model discloses an adjustable harvesting structure of a Chinese chive harvesting machine, which belongs to the technical field of agricultural equipment and comprises a rack, the rack is arranged on a chassis structure, a grain lifting shell is arranged at the front end of the rack, two transverse shafts are arranged at the rear end of the rack, and two vertical shafts are arranged at the front end of the rack. One transverse shaft and one corresponding vertical shaft form a conveying belt shaft set, the two conveying belt shaft sets form a leek conveying channel, a harvesting wheel is arranged below the front end of the leek conveying channel, an inclined height adjusting structure is arranged between a front wheel of the chassis structure and the chassis structure, and a connecting box is arranged between the grain lifting shell and the front end of the rack. A grain lifting horizontal adjusting structure used for keeping the bottom of the grain lifting shell in a horizontal state is arranged between the grain lifting shell and the connecting box. According to the utility model, the integral height adjustment is adopted to replace the distributed cutter group adjustment, the harvesting wheel is good in operation stability, and the adjustable grain lifter structure is arranged, so that the adaptation of the adjustable Chinese chive harvesting height and the corresponding adjustable grain lifter is realized.

The utility model relates to the technical field of toys for children, and discloses a rotary bouncing ball which comprises an outer lantern ring, a connecting rope and a ball body, one end of the connecting rope is fixedly connected to the outer wall of the outer lantern ring, the other end of the connecting rope is fixedly connected with the ball body, an inner fixing ring is movably arranged on the inner side of the outer lantern ring, an annular groove is formed in the inner side of the outer lantern ring, and the inner fixing ring is fixedly connected with the ball body. A plurality of universal balls which are annularly distributed are arranged at the groove bottom corresponding to the annular groove at equal intervals, the outer wall of the inner fixing ring is fixedly connected with a plurality of connecting blocks which extend into the annular groove and abut against the outer portions of the universal balls, the inner side of the inner fixing ring is fixedly connected with an elastic air bag, and the inner fixing ring is of a hollow structure; a plurality of vent holes communicated with the elastic air bag are formed in the inner side of the inner fixing ring, and the surface of the inner fixing ring is further fixedly communicated with an inflation nozzle. In the use process, friction injury is avoided, and children can use the chair more safely and comfortably.

The application discloses a pipeline assembly convenient to disassemble and assemble, which comprises a first pipeline, a second pipeline which is arranged in butt joint with the first pipeline, a shell and at least two locking members; the shell is movably arranged on the peripheral wall of the first pipeline and is switched between a first position and a second position along the axial direction of the first pipeline; when the shell is located at the first position, the end of the shell close to the second pipeline is in the same plane with the end of the first pipeline close to the second pipeline; when the shell is located at the second position, a part of the shell is sleeved on the peripheral wall of the first pipeline and another part of the shell is sleeved on the peripheral wall of the second pipeline, the first pipeline and the second pipeline are communicated, and the shell is sealingly connected with the first pipeline and the second pipeline; at least one locking member locks the shell and the first pipeline, and at least one locking member locks the shell and the second pipeline. The pipeline maintenance can be realized in a narrow space, the operation is simple and convenient, and the operation and maintenance efficiency of the pipeline is improved.

The electromagnetic valve comprises a valve body, a coil assembly and a clamping plate, the valve body comprises an inlet, an outlet and an internal flow channel for liquid to flow to the outlet along the inlet, and a cavity wall is arranged at the top of the valve body; a first opening axially extending to the top of the cavity wall and a second opening communicating with the bottom of the first opening and extending in the circumferential direction of the cavity wall are formed in the inner side of the cavity wall, and a third opening is formed in the outer side of the cavity wall; the coil assembly comprises a positioning pin and a movable iron core assembly, the positioning pin is arranged on the periphery of the bottom of the coil assembly, the positioning pin can move along the first opening and be screwed into the second opening so that the coil body can be connected to the valve body, and the movable iron core assembly can axially move to control on-off of the internal flow channel; the clamping plate comprises a clamping plate body, a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are connected to the same side of the clamping plate body, the first clamping piece can be inserted into the first opening, the second clamping piece is used for being connected with the third opening in a clamped mode, and material brittle cracking caused by connection of all components through screws is avoided.

The invention relates to a hub driving system. The hub driving system comprises a rim, a wheel shaft and a driving motor which are coaxially arranged, the rim is rotatably supported on the radial outer side of the wheel shaft, the driving motor comprises a stator and a rotor which are coaxially arranged, and the rotor is rotatably arranged on the radial outer side of the stator. Wherein the rotor is fixed on the radial inner surface of the rim, and the stators are fixed on the radial outer side of the axle in a radial interval mode. The wheel hub driving system provided by the invention has improved spatial layout.

The utility model relates to the technical field of optical lenses, in particular to a lens module structure which comprises a reflecting cover, a lamp panel and a mounting frame, the mounting frame is provided with a containing groove, the lamp panel is embedded in the containing groove and used for mounting lamp beads, the reflecting cover is connected to the mounting frame and covers a groove opening of the containing groove, the reflecting cover is provided with a through hole, and the lamp beads are embedded in the through hole. A fixing column is connected to the side, away from the reflecting cover, of the lamp panel, the length direction of the fixing shaft is parallel to the groove depth direction, and a third avoiding hole is formed in the groove bottom of the containing groove and used for allowing the fixing column to be embedded therein. The lamp panel is embedded in the containing groove, the fixing column is embedded in the third receding hole, the lamp panel and the installation frame are relatively fixed in the direction perpendicular to the axis of the fixing column, the lamp beads are installed on the lamp panel, the lamp beads are embedded in the through holes, the lamp panel and the reflecting cover are relatively fixed in the direction perpendicular to the thickness direction of the lamp panel, and the reflecting cover, the lamp panel and the installation frame are convenient to disassemble and assemble.