220 results about "Light pillar" patented technology

A fountain lamp with a disinfection device includes a shell, a lighting component, and a pumping assembly. The shell is provided with a closed floating cavity in an upper part and a water outlet channel passing through the floating cavity. The water outlet channel is provided with a water spray hole at an upper end, and the shell is provided with a disinfecting cavity at a lower part and a first through hole at the lower part. The disinfecting chamber is for holding the disinfecting substance and immersing it in the water, and the first through hole is for allowing water to pass through. The lighting component is configured for projecting light to form a column of light. The pump component is for pumping water through the water outlet channel to the water spray hole to form a column of water.

The invention discloses an intelligent pressure plate remote monitoring system based on double-confirmation detection synchronization, which comprises a non-contact sensing mechanism, integrates state double confirmation of optical detection and magnetic induction detection, performs double judgment of a pressure plate state and critical position judgment through synchronous boundary dynamic verification, and comprises an intelligent pressure plate assembly, a remote monitoring system and a remote monitoring system, the optical detection assembly controls on-off of an optical path through switching of the transparent area and the shielding area of the light guide column so as to identify the rotation angle of the pressing plate. The guide rail type sensor array detects the induction stroke of the pressing plate through magnetic induction of the magnetic induction piece, and the magnetic induction boundary of the magnetic induction switch is dynamically synchronous with the light path switching boundary of the light guide column; a wireless collector; the pressing plate control device is further in wireless communication with the wireless collector, and the pressing plate control device carries out synchronous boundary logic processing on the double-confirmation signal and outputs a double-confirmation state; provided is a pressing plate management system. Through the arrangement, the problem of asynchronous signal induction of detection of different sources in a pressing plate double-confirmation detection scheme is solved.

The invention relates to a plastic-electricity integrated touch control interior ceiling lamp control panel for an automobile, a manufacturing method, an illumination control module and a touch control panel, the touch control panel comprises a decorative membrane, a light guide column, an injection molding shell, an FPC flexible circuit board and side light emitting lamp beads, the decorative membrane and the FPC flexible circuit board are formed in the injection molding shell in a plastic-electricity integrated injection molding mode, and the side light emitting lamp beads are arranged on the side light emitting lamp beads. The decorative membrane is located on the upper surface of the injection molding shell, the FPC is embedded into the injection molding shell, and side light-emitting lamp beads are arranged on the FPC and guide lamplight to the position of a semi-transparent character window of the decorative membrane through a light guide column which is arranged in the injection molding shell in an injection molding mode. The touch control switch has the advantages that the integrated injection molding structure integrates the LED light source and a circuit system, the waterproof and wear-resistant effects are achieved, the service life of more than 500,000 times of operation is achieved, and the technical bottlenecks of a traditional touch control switch in sensitivity, durability, waterproofness and product integration are systematically solved while the automobile gauge level reliability is ensured.

The present invention discloses an assembly pressure-maintaining mechanism, which includes a mounting seat, two fixing parts and an adjustment mechanism. The two fixing parts correspond to the mounting of a housing and a light guide column, and at least one of the fixing parts is movable in a first direction, a second direction and a third direction. The adjustment mechanism includes a coarse adjustment mechanism and a fine adjustment mechanism. By adjusting the movable fixing part to move along the second direction and the third direction, the center of the light guide column and the center of the mounting hole can be aligned. When the fixing part movable along the first direction is adjusted to move along the first direction, when the light guide column is far from the mounting hole on the housing, the coarse adjustment mechanism realizes rapid coarse adjustment of the light guide column, thereby improving assembly efficiency. When the light guide column is close to the mounting hole on the housing, the fine adjustment mechanism realizes fine adjustment of the light guide column, thereby ensuring assembly accuracy. This provides an assembly pressure-maintaining mechanism that can ensure assembly accuracy while improving assembly efficiency.

The utility model relates to the technical field of LED colorful street lamps, in particular to an LED colorful street lamp convenient to maintain, which comprises a main body, an assembly hole is formed in the front surface of the main body, the right side of the main body is fixedly connected with two first connecting wires, the right side of each first connecting wire is fixedly connected with a first connector, the number of the first connecting wires is two, and the right side of each first connector is fixedly connected with a second connector. According to the LED lamp, the lamp holder, the light guide column upper cover, the lamp bead PCB and the like are arranged, the lamp bead PCB is clamped between the light guide column and the light guide column upper cover to form an independently detachable structure, and when the lamp bead PCB is damaged, the light guide column can be pulled, so that the light guide column upper cover and the lamp holder are in a clamped state; when the LED lamp is connected in series, the light guide column can be pulled out of the lamp holder, the light guide column upper cover can be opened to replace the lamp bead PCB, the lamp bead PCB can be conveniently and rapidly disassembled, meanwhile, when the lamp bead PCB is disassembled and replaced, use of the whole LED lamp connected in series is not affected, and the problem that after the lamp bead PCB is damaged, the whole LED lamp needs to be replaced, and waste is caused is solved.

The utility model provides a top illumination type quartz light guide and photochemical reaction device, and belongs to the technical field of photochemical reaction equipment. The top illumination type quartz light guide column comprises a quartz light guide column body, the quartz light guide column body is of a cylindrical structure, the cylindrical surface is a smooth curved surface, and the two ends are smooth planes or curved surfaces. The photochemical reaction device comprises a reaction container, a sealing plug assembly, a top illumination type quartz light guide column and a light source assembly, and the reaction container is provided with a light inlet; the sealing plug assembly is in sealing connection with the light inlet; one end of the top illumination type quartz light guide column is positioned in the reaction container, and the other end of the top illumination type quartz light guide column is positioned outside the reaction container; the light source assembly is connected or contacted with one end, positioned outside the reaction container, of the top illumination type quartz light guide column, so that light is guided into the reaction container through the top illumination type quartz light guide column. The whole device is simple in structure, light guiding can be completed only through one quartz light guiding column, a light source and a reaction part are separated, and the light utilization rate is high.

This utility model discloses a rotary switch with a light guide structure, comprising a switch body and a light guide structure. The light guide structure includes a housing that is fitted into a mounting hole on the front panel of the switch body. The front end of the housing has a lamp wick mounting slot, into which a lamp wick mounting plate is installed. The lamp wick mounting plate is located behind the mounting hole, and three lamp wicks are mounted on its front side. A light guide base is located on the front side of the mounting hole, and a light guide post is mounted on the light guide base. The end of the light guide post has three cylindrical light-entry channels located behind the mounting hole of the switch body, with the ends of the light-entry channels close to the three lamp wicks. Multiple hollowed-out elliptical holes are provided inside the light guide post. The front end of the light guide post extends out of the mounting hole, and a light-transmitting plate is fixed to the front end of the light guide post. This utility model eliminates the need for high-power LEDs, provides high brightness regardless of distance, and offers a greater display illumination effect.

The invention discloses a method for improving the light pillar depth of an operating shadowless lamp and a lamp panel structure. According to the method, by adjusting the included angle between the optical axis of each TIR lens unit and the central axis of a lamp panel, the circle center of a sub-light spot formed by each TIR lens unit at the preset working distance does not coincide with the central point of a target surgical field light spot, but is distributed on a virtual concentric circular ring with the central point as the circle center, and the target surgical field light spot is synthesized by splicing the multiple sub-light spots. The corresponding lamp panel structure comprises a lamp panel base body, a TIR lens unit array arranged along a plurality of concentric rings, a driving mechanism and a programmable controller. The limitation of a traditional concentric convergence mode is broken through, the light column depth of the operation shadowless lamp is remarkably improved, especially the light column depth of a minimum light spot mode, meanwhile, good illumination uniformity and a shadowless effect are kept, and the technical problems existing in the field for a long time are solved.

1. The name of the design product: high beam strengthening direct lighting system for vehicle. 2. The use of the design product: the strengthened LED auxiliary lamp designed for long-distance lighting, which greatly improves the active safety at night and in bad weather, and the extremely strong brightness and concentrated light column significantly improve the high beam illumination range and penetration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides an indicating lamp assembly and electrical equipment, which belongs to the technical field of electrical equipment parts, and comprises a panel, a light guide column, a mounting bracket and a light emitting assembly, the panel is provided with a front-back through light outlet hole. The light guide column is provided with a first light guide section and a second light guide section, the first light guide section extends in the vertical direction, the second light guide section is connected to the lower end of the first light guide section and extends forwards, and the second light guide section is inserted into the light outlet hole; the mounting bracket is erected above the second light guide section and is fixedly connected with the rear side surface of the panel; the light emitting assembly is arranged above the first light guide section and fixedly connected with the upper side of the installation support, an indication light source on the light emitting assembly is arranged right opposite to the first light guide section, and the upper side of the light emitting assembly is provided with a wiring port. The assembly, disassembly and maintenance operations between the light guide column, the mounting bracket, the light emitting assembly and the panel and the equipment main body are gradually changed, time and labor are saved, and the working efficiency is improved.

The utility model relates to the technical field of game handle charging seats, in particular to a luminous conical charging seat structure for charging a game handle. Comprising a bottom shell, a surface shell at the top of the bottom shell, an upper shell at the top of the surface shell, a light-emitting LED lamp panel in the bottom shell, a power supply input port on the light-emitting LED lamp panel, four clamping grooves around the surface shell, a charging connection port around the surface shell, and a charging connection port in the corresponding clamping groove. A light-emitting atmosphere lamp connected with the light-emitting LED lamp panel is arranged on the face shell, an upper shell support is arranged on the top of the face shell, four charging indicator lamp light guide columns connected with the charging connector are arranged on the top of the upper shell, and a touch key is arranged on the top of the upper shell. The utility model provides a luminous conical charging seat structure which is used for charging handles of new and old game hosts. The charging seat not only supports the function of charging for four at the same time, but also has a light-emitting function, can be used as a small night lamp, and greatly improves the use experience of a user.

The utility model relates to the technical field of magnetic shaft keys, in particular to a magnetic shaft key switch with a double-light-guide structure, which comprises a shell and a shaft core structure arranged in the shell in a lifting manner, a spring used for supporting the shaft core structure is arranged in the shell, the shaft core structure comprises a magnet, and the magnet is arranged in the shell. Light guide pieces penetrating through the shell are arranged on the two sides of the shaft core structure. According to the keyboard, the light guide pieces are arranged on the two sides of the keys in the penetrating mode, it is ensured that the key switches and the key caps on the key switches can be fully covered by lamplight, the uniformity and coordination of the lamplight are greatly improved, the lamplight effect of the keyboard is improved, and the use experience of a user is improved. Compared with a traditional single-side light guide structure, the double-light-guide-column structure remarkably enlarges the illumination range of the key, so that light is more uniform and harmonious.

The utility model relates to the technical field of LED lamps, and discloses a device with a water leakage alarm function, which comprises a mounting frame, a water cooling box is mounted in the mounting frame, a PCB (printed circuit board) is fixedly mounted on the end surface of one side, close to a light condensing column, of the water cooling box, LED lamp beads are arranged on the outer end surface of the PCB, and a connecting structure is arranged on the inner surface of the mounting frame; a tray is arranged below the mounting frame, a water leakage detection cable is arranged in the tray, a diffusion plate is arranged in the mounting frame, and the top end face of the mounting frame is connected with an increasing lens; an aviation connector is fixedly installed on the end face of one side of the water cooling box, and the outer sides of the LED lamp beads are connected with a light source controller. The device with the water leakage alarm function has the good water leakage alarm function, water leakage can be automatically detected, and the problems that most of existing detection light source water-cooling heat dissipation devices are not convenient to automatically cut off power supply of a detection light source when heat dissipation is poor, and it is difficult to protect the light source from being burnt out are solved.

The application provides a light shielding control system, method and device of a light shielding mechanism in an optical device, wherein the light shielding mechanism comprises a plurality of light shielding columns, each of which is controlled by a motor, the system comprises a trajectory planning module, a position determination module and a motor control module, the trajectory planning module is configured to determine at least one movement path of each light shielding column according to a current position of the light shielding column and a target position of the light shielding column; the position determination module is configured to detect an intermediate position of each light shielding column after the light shielding column moves one movement path; and the motor control module is configured to control the movement of each light shielding column according to the at least one movement path of the light shielding column and the intermediate position of the light shielding column after the light shielding column moves one movement path. The application avoids code waste, reduces the calculation time of the algorithm, and accurately controls the position of the light shielding mechanism.

The utility model belongs to the technical field of medical instruments, and particularly relates to a silica gel head auricular point probe with a positive point positioning function, which comprises a holding tube, a positioning head, a telescopic piece, an auricular point probe ball, a transparent silica gel sleeve, a lighting assembly, a rolling piece and the like. Wherein the telescopic piece is movably connected into the holding pipe and comprises a through pipe and a spring, the outer side of the through pipe is fixedly connected with a baffle disc, one end of the spring abuts against the side face of the baffle disc, and one end of the through pipe is inserted into the hole probing ball and sleeved with a transparent silicon rubber sleeve; the lighting assembly comprises a lighting bin and a lamp body, and light is transmitted to the hole detection ball through a light guide column; the top of the holding pipe is provided with a rolling piece, and convex particles are uniformly distributed outside; by arranging the telescopic piece and the spring, ear injury caused by overlarge pressure in the acupoint detection process is avoided, the accuracy of acupoint detection is ensured through the lighting system, the massage function is added through the rolling piece, the auricular point can be accurately detected, effective stimulation can be provided, and the problems that positioning is inaccurate, pressure control is improper, positive point recognition is difficult and the massage function is single are solved.

The present invention relates to the field of jaundice detection technology, and in particular to a probe structure and installation method for jaundice detection. The installation method of the probe structure for jaundice detection includes: installing a light guide column housing, performing a glue application at the contact point between a fourth shell and a first shell, and inserting the first shell into the fourth shell; installing a positioning plate and inserting the positioning plate into the first shell; welding a pin header to a first circuit board, preparing several groups of 5-pin pin headers, and welding the 5-pin pin headers to the first circuit board; applying glue to the front end outer layer of the emitting light guide column and the front end of the second reflecting light guide column, respectively, welding the 5-pin pin header to a third circuit board, and then installing the third circuit board into the third shell. The present invention achieves a firm connection and high-precision alignment between components through the use of glue application and positioning plates, significantly improving the stability and accuracy of installation. The standardized operation of the 5-pin pin header simplifies circuit board connection, and the modular installation design makes component replacement and upgrading more convenient.

The invention relates to an automobile starry sky roof and an automobile. The automobile starry sky roof comprises an interior ceiling, a plurality of light guide columns arranged on the interior ceiling, a mounting keel arranged on the upper side of the interior ceiling and a plurality of light emitting modules detachably mounted on the mounting keel. A plurality of preformed holes which penetrate through the inner surface and the outer surface and are used for arranging the light guide columns one by one are formed in the interior ceiling; the light-emitting module comprises a mounting support, a light-emitting part arranged on the mounting support and a plurality of light guide parts arranged on the mounting support and used for guiding light to the light guide column. A mounting cavity for arranging the light-emitting part and the light guide part is formed in the mounting support; the side, facing the interior ceiling, of the mounting support is provided with a plurality of arrangement holes used for arranging the light guide parts one by one. The installation method has the effect of improving the problems that the installation efficiency of the automotive interior simulation starry sky roof is low and the later maintenance difficulty is large.

1. Name of the design product: Toy (Flashlight Night Light Beam). 2. Use of the design product: The design product is a toy for lighting and children's play. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: 3D view of Design 2. 5. Design 2 is designated as the basic design.

The application relates to the technical field of bridge construction, in particular to a laser projection assembly which comprises a mounting frame and two bridge towers arranged in parallel, the mounting frame is arranged on the upper part of the inner side of one of the bridge towers through bolts; and laser projection lamps are connected through a plurality of supports, the laser projection lamps are arranged in a rectangular array in the mounting frame, a light guide cover is fixed to the side of the mounting frame away from the bridge tower, the inside of the mounting frame is separated from the outside through the light guide cover; the laser projection lamps are connected with a control box through power lines, and the control box is electrically connected with a power box. The light emitted by the laser forms a light column at night, the light column is emitted from one tower bridge of the bridge body to the other tower bridge, so that a light column is formed between the two tower bridges, the light column can change the problem that the stereoscopic sense is lacked due to the absence of cross beams, and the stereoscopic sense of the bridge body at night is improved.

The utility model provides a light guide structure and FTTR equipment. The light guide structure can be applied to FTTR, FTTR-B or broadband fusion terminal products. The light guide structure comprises a light guide shell and a light guide column; the light guide shell is installed on the circuit board, at least one light guide cavity is formed in the light guide shell, and each light guide cavity corresponds to one LED lamp; a light guide surface is arranged on the inner side wall of the light guide cavity and is opposite to the LED lamp; the light guide column is mounted on the shell; a light guide through hole communicated with the light guide cavity is formed in the light guide shell, the first end of the light guide through hole faces the light guide face, and the second end of the light guide through hole faces the light guide column; the light guide shell can cover and hide the LED lamp, so that the LED lamp is effectively protected; the irradiation direction of light rays is changed through the light guide surface arranged on the inner side wall of the light guide cavity, at the moment, the light rays are irradiated to the light guide column through the light guide through hole, the light rays are uniformly guided out through the light guide column, and a user can clearly distinguish the state of equipment through naked eyes.

A fountain lamp with a disinfection device includes a shell, a lighting component, and a pumping assembly. The shell is provided with a closed floating cavity in an upper part and a water outlet channel passing through the floating cavity. The water outlet channel is provided with a water spray hole at an upper end, and the shell is provided with a disinfecting cavity at a lower part and a first through hole at the lower part. The disinfecting chamber is for holding the disinfecting substance and immersing it in the water, and the first through hole is for allowing water to pass through. The lighting component is configured for projecting light to form a column of light. The pump component is for pumping water through the water outlet channel to the water spray hole to form a column of water.

The utility model discloses a coated image wall body plate, and belongs to the technical field of building wall plates. Wherein the lamp grating is arranged in the metal back shell, a casting opening is formed in the metal back shell, concrete enters a gap between the lamp grating and the metal back shell through the casting opening, and a casting layer is formed after cooling, so that the lamp grating and the metal back shell form a whole; the outer surface of the casting layer is formed on the same side of the light-emitting face of the lamp grating and does not block light rays. According to the utility model, the situation that the lamp grating falls off or loosens is effectively avoided, the overall stability of the wall body plate is improved, meanwhile, electronic devices in the wall body plate are protected, the influence of atmosphere and ultraviolet rays on the electronic devices is avoided, and the service life is prolonged; the light guide columns are arranged on the peripheries of the LEDs, light is evenly distributed, the display effect is improved, the ends, away from the lamp grating plate, of the light guide columns and the outer surface of the casting layer are located on the same horizontal line, the attractiveness of the wall plate is improved, the casting layer protects the light guide columns, and the light guide columns are prevented from being damaged or displaced due to external factors.

The utility model discloses a combined LED courtyard lamp, including toughened glass lamp shade, lens, LED aluminum substrate, driving power supply, upper cover and fixed base, the lens is along the circumferential direction interval and is set on the upper end wall of toughened glass lamp shade, the LED aluminum substrate is set respectively in the upper end of lens, the lower end wall of LED aluminum substrate is equipped with a plurality of patch type LED lamp pearl, be equipped with a plurality of spotlight column in the lens, the upper end of spotlight column is recessed respectively one accommodation groove, patch type LED lamp pearl is embedded respectively in the accommodation groove, driving power supply is set in the middle of the upper end wall of toughened glass lamp shade, and driving power supply is electrically connected with patch type LED lamp pearl, and the upper cover is detachably covered in the upper end of toughened glass lamp shade through screw, and the fixed base is convex and is set in the middle of the lower end wall of toughened glass lamp shade. The technical scheme of the utility model can make the range of light irradiation wider, and the light effect is better, and the heat dissipation effect is good, and is convenient to dismount and install, and the practicality is strong.

The invention discloses a medical material air-drop box for field first aid, and belongs to the technical field of medical air-drop boxes. The medical air-drop box comprises a medical air-drop box body, and supporting legs are arranged on the two sides of the body and connected with the side walls of the body through buffering assemblies. A smoke chamber and a colored ribbon storage box are fixed at the top of the body and are respectively provided with a smoke outlet and a colored ribbon outlet, and a smoke release component with a laser lamp and a showing component are correspondingly arranged in the smoke chamber and the colored ribbon storage box. The air-drop box is characterized in that the air-drop box is provided with a smoke, colored ribbon and laser triple positioning system; a heating rod in the smoke box vaporizes smoke oil to generate high-concentration smoke, and the high-concentration smoke is accelerated and guided out by a second fan blade to form a remote visible smoke column; a first fan blade in the colored ribbon storage box blows out a colored ribbon to form a dynamic identifier; the laser lamp penetrates through the smoke to form a high-brightness light column. The three parts cooperate with each other, are positioned by smoke and colored ribbons in the daytime, are positioned by laser and smoke at night, and are positioned by light pillar penetration in a low-visibility environment, so that search time can be shortened for rescue workers, and the rescue workers are prevented from missing first-aid golden time.

The light guide column comprises a plate-shaped light guide column body, a groove is formed in the front face of the light guide column body, the groove is close to one end of the light guide column body in the length direction and used for containing an indicator lamp body, and a protruding part is arranged at the other end of the light guide column body in the length direction. The protruding parts are arranged in the width direction of the light guide column body. The light guide column has the advantages that the light guide column body is plate-shaped, the front face of the light guide column body is provided with the groove, and the indicator light body is located in the groove after installation, so that the overall occupied space is smaller after installation, and the light guide column can be suitable for thin products; the other end of the light guide column body in the length direction is provided with a protruding part, so that the light guide column body is conveniently positioned and installed with the shell and transmits light of the indicator light out of the shell; the whole light guide column body is simple in structure, low in production and manufacturing cost and convenient to assemble.

The gravel pile grouting amount monitoring method comprises a vibratory hammer, a feeding opening, a pile pipe, a pile tip and gravel, the vibratory hammer is arranged at the top of the pile pipe, the feeding opening is formed in one side of the outer wall of the middle of the pile pipe, the bottom of the pile pipe is connected with the pile tip, and the gravel is poured into a gravel pile through the feeding opening; the device further comprises a distance measuring module, the distance measuring module comprises a laser, a camera, an installation mechanism and a differential GNSS module, the laser and the camera are arranged in the pile pipe, the light beam direction of the laser and the optical axis of the camera are located near the measured object and intersect, and the differential GNSS module is arranged at the top end of the outer side of the pile pipe. The relative height change of the end face of the gravel in the pile pipe is achieved through wireless distance measurement, direct measurement of the gravel filling amount is achieved, and errors caused by indirect measurement are avoided. Aiming at serious dust and rainwater shielding caused by a gravel dumping process in the pile pipe, a light beam image edge formed by a Tyndall effect can be acquired through a laser triangulation method, and the anti-interference capability is remarkable.

The application belongs to the technical field of surveying and mapping devices, in particular to a field geological profile surveying and mapping support device, which comprises a mounting disc, a plurality of connecting rods are uniformly and fixedly installed at the bottom of the mounting disc, a base plate is fixedly installed between the plurality of connecting rods, the base plate is arranged in parallel with the mounting disc, a universal shaft is fixedly installed at the bottom of the base plate, a detection plate is fixedly installed at the bottom of the universal shaft, and a plurality of laser lamps are uniformly and fixedly installed on the inner wall of the detection plate. The application utilizes the mode that laser light emitted by the laser lamp passes through the through hole to determine the level, the laser light column is clear and has strong directivity, can be clearly visible in various light environments, is not affected by the above environmental factors, and the staff can intuitively and clearly observe the light condition, so as to quickly and accurately determine whether the device is in a horizontal state. When the light emitted by the laser lamp can pass through the through hole vertically, it can be concluded that the mounting disc is in a horizontal state.

The utility model discloses a road anti-collision pier with a spherical structure, which comprises a base and a ball body, the ball body is fixed above the base, the base and the ball body are integrally formed, a plurality of light-emitting components are arranged on the surface of the ball body, each light-emitting component comprises a light guide column and an LED lamp bead, one end of each light guide column is open, and the other end of each light guide column is open. The LED lamp bead is inserted from one end of the light guide column, the LED lamp bead is fixed in the light guide column through sealant, a polishing area is preset at the other end of the light guide column, and the top of the ball body is of a plane structure. According to the road anti-collision pier of the spherical structure, the structure of the anti-collision pier is improved, and therefore the functionality of the anti-collision pier is improved.

The utility model discloses a charger indicating lamp structure with a button function, which comprises a surface shell, a light guide column and a lamp panel, and the surface shell is provided with a light hole; the light guide column is arranged in the face shell, and one face of the light guide column is exposed out of the light hole. The lamp panel is arranged below the light guide column, a pressing part is arranged on the face, adjacent to the lamp panel, of the light guide column, and a microswitch is arranged at the position, corresponding to the pressing part, of the lamp panel. According to the structure of the utility model, the light guide column has light conduction and pressure conduction functions at the same time, operation feedback and state display are integrated by using a single hole site, the assembly process can be simplified, and the structural reliability can be improved.