Stage light fixture with convenient adjustment and method of using the same

Abstract

The application provides a stage lamp convenient to adjust and a use method thereof. The stage lamp mainly comprises a lamp body, a mounting cylinder, an electromagnet and an adjusting seat. When the suction plate is attracted to the electromagnet, the mounting cylinder and the adjusting seat are attached to the stage surface. Therefore, in this process, only the electromagnet needs to be powered to realize the "pulling up" of the adjusting seat and the "pushing down" of the mounting cylinder, so as to realize the installation of the lamp body. When the overall position needs to be adjusted, only the electromagnet needs to be powered off. At this time, the suction plate is separated from the electromagnet, and then the mounting cylinder can be directly taken out. When the adjusting seat is adjusted to the appropriate position, the mounting cylinder is reset, and then the electromagnet is started. Therefore, the application eliminates the problem that the bolts need to be removed and installed when the position of the lamp is adjusted, which leads to low efficiency and complicated operation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stage lamps, in particular to a stage lamp convenient to adjust and a use method thereof. BACKGROUND

[0002] In the process of arranging the stage, the lamps are an important part of stage lighting, which are used to create various visual effects and atmosphere, and the installation position thereof is usually set at a high place or on the stage according to the requirements and use scenarios. For the stage lamps placed on the stage, since some stages are usually accompanied by large vibrations during use, such as the steel plate stage built for singing or dancing, the large vibration is easy to cause the stage lamps to move, thereby causing the light to deviate, and further affecting the lighting effect. Therefore, in order to prevent the lamps from moving, the stage lamps are usually locked on the stage by means of bolts. However, since the background of the steel plate stage is different each time it is used, the requirements for the light irradiation range are different, and at this time, the overall position of the stage lamps needs to be adjusted. In the process of adjusting the overall position of the stage lamps, the bolts need to be removed and installed, which is low in efficiency and the operation process is also complicated. SUMMARY

[0003] The present application aims to design a stage lamp convenient to adjust and a use method thereof to solve the problems in the background art. To achieve the above-mentioned purpose, the present application provides the following technical scheme: a stage lamp convenient to adjust comprises a lamp body, a mounting cylinder mounted at the bottom of the lamp body, an electromagnet arranged in the mounting cylinder, and an adjusting seat in sliding connection with a stage; the adjusting seat slides along the horizontal direction of the stage; an attracting plate is arranged on the adjusting seat and located in the interior of the mounting cylinder and above the stage; when the attracting plate is attracted by the electromagnet, the mounting cylinder and the adjusting seat are both pressed against the stage, and the adjusting seat and the mounting cylinder have opposite movement trends.

[0004] Further, a first magnetic shielding sleeve is fixedly connected to the inner top of the mounting cylinder, a second magnetic shielding sleeve is arranged on the top of the adjusting seat, the attracting plate is embedded in the interior of the second magnetic shielding sleeve, and the electromagnet is embedded in the interior of the first magnetic shielding sleeve; the attracting surfaces of the attracting plate and the electromagnet are both located outside the second magnetic shielding sleeve and the first magnetic shielding sleeve.

[0005] Further, a through hole is arranged on the first magnetic shielding sleeve; when the electromagnet is attracted to the attracting plate, the second magnetic shielding sleeve is embedded in the through hole, and a gap exists between the top of the second magnetic shielding sleeve and the inner bottom of the through hole.

[0006] Further, the bottom of the mounting cylinder is fixedly connected with a rubber sealing ring, the lower part of the adjusting seat is provided with a sealing plate, the inner ring of the bottom of the rubber sealing ring is provided with a first chamfer, the outer edge of the top of the sealing plate is provided with a second chamfer, and a plurality of sealing protrusions are arranged on the second chamfer, when the electromagnet is attracted to the suction plate, the second chamfer is pressed with the first chamfer, and the bottom of the rubber sealing ring is pressed with the table top.

[0007] Further, the table top is fixedly connected with an adjusting block, the adjusting block is provided with a T-shaped groove, the adjusting seat is provided with a T-shaped rod in sliding connection with the T-shaped groove, the vertical rod of the T-shaped rod penetrates the adjusting block, the bottom of the second magnetic shielding sleeve is provided with a sleeve in sliding connection with the T-shaped rod, the inside of the T-shaped rod is provided with a first spring, one end of the first spring is fixedly connected with the inner bottom of the T-shaped rod, and the other end of the first spring is fixedly connected with the bottom of the second magnetic shielding sleeve, when the electromagnet is attracted to the suction plate, there is a gap between the T-shaped rod and the inner bottom of the sleeve.

[0008] Further, the inside of the mounting cylinder is provided with a safety groove, the bottom of the second magnetic shielding sleeve is connected with a plurality of limiting blocks through an elastic assembly, after the electromagnet is separated from the suction plate, in the movement of the second magnetic shielding sleeve under the action of the first spring, the limiting blocks are inserted into the safety groove under the action of the elastic assembly, at this time, the mounting cylinder is pressed on the table top under the action of the first spring, and there is a gap between the T-shaped rod and the inner bottom of the sleeve.

[0009] Further, the end of the limiting block near the safety groove is provided with an inclined surface, the width size of the inclined surface is greater than the width size of the safety groove, and the angle of the inclined surface is not in the range of the self-locking angle, that is, when the end of the limiting block is inserted into the safety groove, the top side of the safety groove pushes the limiting block away from the safety groove through the inclined surface when the mounting cylinder moves downward.

[0010] Further, the elastic assembly comprises a plurality of fixed rods fixedly connected with the adjusting block, the limiting blocks are in sliding connection with the fixed rods, a second spring is sleeved on the fixed rod, one end of the second spring is connected with the limiting block, and the other end of the second spring is connected with the adjusting block; the bottom of the second magnetic shielding sleeve is provided with a limiting groove, and the top of the limiting block is provided with a limiting table matched with the limiting groove.

[0011] Further, the adjusting block is rotationally connected with a synchronous disc, the synchronous disc is provided with a plurality of inclined grooves, and the bottom of the limiting block is fixedly connected with a guide column matched with the inclined grooves.

[0012] Further, the inner circle diameter of the mounting cylinder below the safety groove is smaller than the inner circle diameter of the mounting cylinder above the safety groove, the upper part of the mounting cylinder is slidingly connected with a blocking ring for blocking the safety groove, the width of the blocking ring is the same as the safety groove, the top of the blocking ring is fixedly connected with a plurality of L-shaped rods slidingly connected with the mounting cylinder, one end of the L-shaped rod penetrates through the vertical slot of the mounting cylinder, and the plurality of L-shaped rods are connected through a ring-shaped rod located outside the mounting cylinder.

[0013] Further, the upper and lower end faces of the blocking ring are fixedly connected with permanent magnets.

[0014] Further, the mounting cylinder is provided with a carrying table, and the distance between the carrying table and the ring-shaped rod is 1.5 times the standard middle finger width of an adult human body.

[0015] Further, a transition chamfer is arranged on the inner circle of the mounting cylinder above the safety groove, the bottom of the transition chamfer is provided with a round corner, and the width size of the transition chamfer is the width size from the blocking ring to the inner circle.

[0016] The application further discloses a use method of the stage lamp convenient to adjust.

[0017] Compared with the prior art, the beneficial effects of the application are as follows: when the suction plate and the electromagnet are attracted in the application, the mounting cylinder and the adjusting seat are pressed and attached to the stage; therefore, only the electromagnet needs to be powered on in the process, so that the "pulling" of the adjusting seat and the "pushing down" of the mounting cylinder can be realized, so that the installation of the lamp body is realized; when the overall position needs to be adjusted, only the electromagnet needs to be powered off, at this time, the suction plate and the electromagnet are separated, and then the mounting cylinder can be directly taken out; when the adjusting seat is adjusted to a suitable position, the mounting cylinder is reset, and then the electromagnet is started; therefore, the application eliminates the problem that the bolts need to be removed and installed when the position of the lamp is adjusted in the prior art, which leads to low efficiency and complicated operation process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is the schematic diagram of the whole structure of the present application;

[0020] Figure 2 It is the schematic diagram of the vertical section of the mounting cylinder;

[0021] Figure 3 It is the schematic diagram of the section of the elastic assembly;

[0022] Figure 4 It is the schematic diagram of the horizontal section of the mounting cylinder;

[0023] Figure 5 It is the schematic diagram of the explosion of the rubber sealing ring and the adjusting seat.

[0024] Wherein: 1, the table top; 2, the adjusting block; 3, the T-shaped groove; 4, the lamp body; 5, the mounting cylinder; 6, the annular rod; 7, the first magnetic shielding sleeve; 8, the suction plate; 9, the plug ring; 10, the safety groove; 11, the synchronous disc; 12, the sleeve; 13, the first spring; 14, the T-shaped rod; 15, the rubber sealing ring; 16, the sealing plate; 17, the vertical rod; 18, the second magnetic shielding sleeve; 19, the L-shaped rod; 20, the electromagnet; 21, the permanent magnet; 22, the vertical notch; 23, the transition chamfer; 24, the limiting groove; 25, the limiting block; 26, the guide column; 27, the fixed rod; 28, the second spring; 29, the limiting table; 30, the adjusting seat; 31, the sealing protrusion; 32, the first chamfer. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purposes, the specific embodiments, structures, features and effects according to the present application will be described in detail below in combination with the drawings and preferred embodiments.

[0026] Embodiment: please refer to Figures 1-5 A stage lamp convenient to adjust, comprising a lamp body 4, a mounting cylinder 5 mounted at the bottom of the lamp body 4, an electromagnet 20 arranged inside the mounting cylinder 5, and an adjusting seat 30 in sliding connection with the table top 1. The sliding connection mode can adopt the common sliding groove and sliding rod connection form. For example, during the arrangement of the steel plate stage, the adjusting block 2 is fixedly connected on the table top 1, the T-shaped groove 3 is arranged on the adjusting block 2, the T-shaped rod 14 in sliding connection with the T-shaped groove 3 is arranged on the adjusting seat 30, and the vertical rod 17 of the T-shaped rod 14 penetrates through the adjusting block 2. At this time, the adjusting seat 30 is slid on the T-shaped groove 3 to realize the adjustment of different positions. The lamp body 4 can adopt the common irradiation body with the adjustment of the circumferential direction and the pitch angle of the irradiation lamp. Since the structure for adjusting the circumferential direction and the pitch angle is too conventional, it will not be described in detail herein.

[0027] In the embodiment, the adjusting seat 30 slides along the horizontal direction of the stage 1, the adjusting seat 30 is provided with the suction plate 8, the suction plate 8 is located in the inside of the mounting cylinder 5, and the suction plate 8 is located above the stage 1; when the suction plate 8 is attracted by the electromagnet 20, the mounting cylinder 5 and the adjusting seat 30 are both pressed and attached to the stage 1, and the adjusting seat 30 and the mounting cylinder 5 have a reverse movement trend; therefore, the bottom of the mounting cylinder 5 is pressed on the stage 1 under the attraction of the electromagnet 20 and the suction plate 8, so as to realize the fixation of the lamp body 4, and therefore, in this process, only the electromagnet 20 needs to be powered on, so as to realize the "pulling up" of the adjusting seat 30 and the "pushing down" of the mounting cylinder 5, so as to pull up the adjusting seat 30 and press and attach the mounting cylinder 5 to the T-shaped groove 3, and then realize the installation of the lamp body 4; when it is needed to disassemble and adjust the position, only the electromagnet 20 needs to be powered off, at this time, the suction plate 8 is separated from the electromagnet 20, and the adjusting seat 30 and the mounting cylinder 5 do not have a reverse movement trend, at this time, the mounting cylinder 5 can be directly taken out, and the position of the adjusting seat 30 can be adjusted, when the adjusting seat 30 is adjusted to the appropriate position, the mounting cylinder 5 is reset, and then the electromagnet 20 is started, so as to realize the position adjustment of the lamp body 4; therefore, the problem that the bolts need to be disassembled and installed when the position of the lamp is adjusted in the prior art is eliminated, the efficiency is low, and the operation process is relatively complicated.

[0028] In addition, the electromagnet 20 and the suction plate 8 are arranged in the inside of the mounting cylinder 5, and the suction plate 8 has a certain distance from the stage 1, so as to prevent dust and gravel from adhering to the suction plate 8 and the electromagnet 20; the electromagnet 20 and the suction plate 8 are isolated from the outside, so as to prevent the surfaces of the two from being attached with magnetic substances, reduce the time needed to clean the suction surface when magnetizing, and then improve the position adjustment speed.

[0029] In other embodiments, the electromagnet 20 can also adopt the form of the permanent magnet 21, but since the magnetism of the permanent magnet 21 is easily affected by heat, the disadvantage of the permanent magnet 21 with unadjustable magnetic force is great, because the lamp will emit heat after being used for a period of time, in order to ensure that the magnetic attraction performance is sufficient under high heat, the magnetic force generated by the permanent magnet 21 at normal temperature is large, but this is not conducive to the rapid adjustment of the lamp, therefore, the electromagnet 20 is adopted in the embodiment, the magnetic attraction of the electromagnet 20 is adjusted by changing the current, so as to realize the rapid adjustment while ensuring stable use under high heat.

[0030] In the embodiment, the inner top of the mounting cylinder 5 is fixedly connected with the first magnetic shielding sleeve 7, the top of the adjusting seat 30 is provided with the second magnetic shielding sleeve 18, the suction plate 8 is embedded in the inside of the second magnetic shielding sleeve 18, the electromagnet 20 is embedded in the inside of the first magnetic shielding sleeve 7, the suction surfaces of the suction plate 8 and the electromagnet 20 are both located outside the second magnetic shielding sleeve 18 and the first magnetic shielding sleeve 7, the first magnetic shielding sleeve 7 is provided with a through hole, when the electromagnet 20 and the suction plate 8 are attracted, the second magnetic shielding sleeve 18 is embedded in the through hole, thereby generating an independent assembly space, the suction surface is isolated from the outside, thereby preventing the situation that the magnetic attraction material is attracted near the suction surface, in addition, the outer walls of the first magnetic shielding sleeve 7 and the second magnetic shielding sleeve 18 are coated with a heat insulation coating, thereby reducing the influence of temperature on magnetic attraction; and there is a gap between the top of the second magnetic shielding sleeve 18 and the inner bottom of the through hole, which gives the suction plate 8 and the electromagnet 20 sufficient space to attract, thereby ensuring the attraction quality, wherein the suction plate 8 is made of a magnetic metal material, which is not limited here.

[0031] In the process of attracting the suction plate 8 by the electromagnet 20, if the power line of the electromagnet 20 is intentionally pulled off by human, or the power line is accidentally pulled off in the process of moving tables and chairs and other objects, the electromagnet 20 will lose power, thereby causing the separation of the electromagnet 20 and the suction plate 8, if not found in time, it is easy to cause the stage lamp installation to be not firm, thereby causing the stage lamp to fall or be knocked down, thereby affecting the normal use of the stage lamp; for this, the battery mode can be used to eliminate the influence of the power line, but since the power of the battery is certain, the power-off situation still exists, if not charged in time, the above situation will still occur;

[0032] Therefore, in the embodiment, the inside of the mounting cylinder 5 is provided with the safety slot 10, the bottom of the second magnetic shielding sleeve 18 is connected with four limiting blocks 25 through the elastic assembly, therefore, when the electromagnet 20 is separated from the attraction plate 8 after sudden power-off, the second magnetic shielding sleeve 18 moves under the action of the first spring 13, the limiting blocks 25 are inserted into the safety slot 10 under the action of the elastic assembly, at this time, the mounting cylinder 5 is pressed on the stage 1 under the action of the first spring 13, and there is a gap between the T-shaped rod 14 and the inner bottom of the sleeve 12; at this time, the process of secondary locking is completed (the pressure between the mounting cylinder 5 and the stage 1 before and after locking is the pulling force of the first spring 13), which prevents the stage lamp from being not firmly installed after the magnetic force disappears; in addition, the end of the limiting block 25 near the safety slot 10 is provided with an inclined surface, the width of the inclined surface is greater than the width of the safety slot 10, and the angle of the inclined surface is not in the self-locking angle range, that is, when the end of the limiting block 25 is inserted into the safety slot 10, the top side of the safety slot 10 pushes the limiting block 25 away from the safety slot 10 through the inclined surface when the mounting cylinder 5 moves downward, so that the quickness of the installation process is ensured, and the clamping phenomenon caused by the safety slot 10 is not considered, and the attraction plate 8 can be quickly and accurately attracted to the electromagnet 20.

[0033] The bottom of the second magnetic shielding sleeve 18 is provided with the sleeve 12 which is slidably connected with the T-shaped rod 14, the inside of the T-shaped rod 14 is provided with the first spring 13, one end of the first spring 13 is fixedly connected with the inner bottom of the T-shaped rod 14, the other end of the first spring 13 is fixedly connected with the bottom of the second magnetic shielding sleeve 18, when the electromagnet 20 is attracted to the attraction plate 8, there is a gap between the T-shaped rod 14 and the inner bottom of the sleeve 12, at this time, the mounting cylinder 5 is pressed on the stage 1 under the action of the first spring 13, so as to ensure the stability of the stage lamp installation, wherein the vertical rod 17 of the T-shaped rod 14 is square-shaped, so as to be beneficial to preventing the mounting cylinder 5 from rotating, but it is not an absolute limitation of the rotation of the mounting cylinder 5, only the rotating friction between the electromagnet 20 and the attraction plate 8 when they are attracted to each other and the friction between the mounting cylinder 5 and the stage 1 need to be overcome, and the size of the friction can be adapted according to the roughness between the electromagnet 20 and the attraction plate 8, the purpose is to ensure the stability of the stage lamp installation and prevent the stage lamp from rotating randomly, and to provide appropriate friction resistance, which is beneficial to reducing the possibility of rigid damage of the stage lamp in the case of violent collision, so as to improve the service life of the stage lamp.

[0034] It is worth mentioning that the bottom of the installation cylinder 5 is fixedly connected with a rubber sealing ring 15, and a first chamfer 32 is arranged on the inner ring of the bottom of the rubber sealing ring 15. The first chamfer 32 is beneficial to guide the limiting block 25 to retract in the direction of the sleeve 12 during the installation of the installation cylinder 5, so as to facilitate the adjustment of the stage lamp. In addition, the rubber sealing ring 15 in the above scheme is pressed against the table 1 under the action of the first spring 13. At this time, a sealing band is formed at the contact position between the rubber sealing ring 15 and the table 1, so that the inside of the installation cylinder 5 is isolated from the outside. Although the inside of the installation cylinder 5 is free of dust and gravel at this time, dust and gravel still exist on the surface of the adjusting block 2 without the stage lamp. Therefore, after the stage lamp is adjusted, if other positions are not cleaned, the bottom surface corresponding to the installation cylinder 5 after adjustment will still have a lot of dust and gravel, thereby affecting the electromagnet 20 inside;

[0035] Therefore, in the embodiment, the lower part of the adjusting seat 30 is provided with a sealing plate 16, and a gap exists between the sealing plate 16 and the table 1, which is used to accommodate the gravel and dust on the surface of the adjusting block 2. A second chamfer is arranged on the top outer edge of the sealing plate 16, and a plurality of sealing protrusions 31 are arranged on the second chamfer. When the electromagnet 20 is attracted to the suction plate 8, the second chamfer is pressed against the first chamfer 32, and the bottom of the rubber sealing ring 15 is pressed against the table 1, thereby generating a new sealing structure. Compared with the sealing structure of the rubber sealing ring 15 directly used in the past, the new sealing structure has the following advantages:

[0036] Firstly, by designing the sealing plate 16, no matter where the installation cylinder 5 is located on the adjusting block 2, the inner bottom of the installation cylinder 5 corresponds to the sealing plate 16. Except that the sealing plate 16 is exposed during adjustment, the rest is isolated from the outside, thereby fully ensuring the cleanliness of the inside of the installation cylinder 5 and preventing dust, gravel or magnetic substances from affecting the suction surface.

[0037] Secondly, the second chamfer is pressed against the first chamfer 32 to generate a sealing structure in the inclined direction. The sealing structure has a longer actual sealing length under the same horizontal width, thereby improving the sealing performance.

[0038] Thirdly, a separation cavity is formed between the abutting position of the rubber sealing ring 15 and the table 1 and the sealing structure in the inclined direction. The separation cavity is a separation band between the outside and the inside of the installation cylinder 5, which greatly hinders the entry of dust and gravel.

[0039] Fourth, the kinetic energy of the gravel and dust is consumed greatly after the initial isolation by the rubber sealing ring 15 and the abutment of the mesa 1. Therefore, the gravel and dust with low kinetic energy are more difficult to enter the inside of the installation cylinder 5 through the sealing structure with an inclined direction, thereby greatly ensuring the attraction performance of the electromagnet 20 and the attraction plate 8. Meanwhile, the guiding effect of the first chamfer 32 on the limiting block 25 also improves the convenience of the installation of the installation cylinder 5.

[0040] In addition, since the model of the first spring 13 needs to be adaptively selected in combination with the specifications of the electromagnet 20, under the premise of minimizing the structural cost and energy consumption (the greater the magnetic force, the higher the energy consumption) and the generated compression force of the rubber sealing ring 15 and the mesa 1 can achieve the stable fixation of the stage lamp, a plurality of combinations of the electromagnet 20 and the first spring 13 are adopted, and after selecting a number of appropriate combinations, the chamfer angle, chamfer length of the second chamfer and the first chamfer 32, and the height of the sealing plate 16 in each combination are adjusted, so that the size ratio between the compression force of the second chamfer and the first chamfer 32 and the compression force of the bottom of the rubber sealing ring 15 and the mesa 1 is 1-2:3-4. When the ratio is in the interval, the compression force of the second chamfer and the first chamfer 32 can achieve the corresponding sealing effect, and the compression force of the bottom of the rubber sealing ring 15 and the mesa 1 can also provide sufficient force to fix the stage lamp on the mesa 1.

[0041] The experimental process shows that when the ratio is less than 1:4, the compression force of the second chamfer and the first chamfer 32 will not be enough to produce effective sealing effect, and when the ratio is greater than 2:3, the compression force of the rubber sealing ring 15 and the mesa 1 will be too small, thereby causing the phenomenon of unstable installation of the stage lamp. Therefore, in this embodiment, the preferred compression force ratio is 1.5:3.5, which can most effectively ensure that the compression force of the second chamfer and the first chamfer 32 can achieve the corresponding sealing effect, and also can provide sufficient force to fix the stage lamp on the mesa 1, thereby ensuring the stability of the entire stage lamp.

[0042] In the prior art stage lamps installed by magnetic attraction, such as the patent document with the authorized announcement number "CN117906112B", a stage lamp convenient to adjust and a use method thereof are disclosed, the stage lamp is directly attracted to the metal plate by the magnetic box, therefore, when directly installed on the stage 1 by the above-mentioned way, since the vibration of the stage 1 is large and the magnetic box directly abuts against the metal plate, the vibration of the stage 1 is directly transmitted to the stage lamp, thereby the stage lamp is shaken, and further the light is unstable; in addition, since the magnetic attraction directly depends on the rigid contact of the magnetic attraction surface, there is no buffer structure, and the vibration energy cannot be consumed, therefore, when the stage and the lamp body resonate, the amplitude is directly transmitted to the magnetic attraction surface, the "dynamic gap" and "inertial force overload" are prone to occur, the magnetic force is sharply attenuated, and the stage lamp is off, especially in the performance stage (such as a concert, a song and dance drama) with dense bass sound and frequent mechanical vibration, and in the face of instantaneous impact such as actor jumping and equipment accidental collision, the direct magnetic attraction cannot buffer the impact force, and the magnetic attraction surface is easily separated instantaneously, or the permanent magnet is internally fractured due to the violent impact (the neodymium iron boron permanent magnet has high brittleness);

[0043] Therefore, in the embodiment, the rubber sealing ring 15, the first spring 13 and the electromagnet 20 are cooperated, and the rubber sealing ring 15 is made of rubber material for shock absorption; therefore, the rubber sealing ring 15 and the first spring 13 can absorb the vibration energy by the elastic deformation, greatly reduce the amplitude and inertial force when resonating, reduce the generation of "magnetic attraction surface gap" from the source, and avoid the magnetic force attenuation; at the same time, the elastic properties of the connection between the rubber sealing ring 15 and the first spring 13 can change the natural resonance frequency of the stage lamp, so that it deviates from the common vibration frequency range (such as the low frequency resonance of sound) in the outside world, when the equipment operates or the outside world vibrates, since the resonance frequency deviates, the stage lamp is difficult to form the resonance condition with the external vibration, thereby effectively reducing the problems such as lamp structure damage and light flicker caused by resonance, and significantly improving the equipment operation stability and service life; in the face of instantaneous impact, the first spring 13 and the rubber sealing ring 15 can buffer the impact force by stretching / compression deformation, avoid the impact energy directly acting on the attraction surface, reduce the risk of magnetic attraction separation and permanent magnet or electromagnet damage, so that the stage with frequent dynamic performance (such as musical drama and acrobatic performance) can be adapted; in addition, in the embodiment, in order to ensure the shock absorption performance of the rubber sealing ring 15, the height of the rubber sealing ring 15 can be appropriately increased, thereby improving the shock absorption performance of the rubber sealing ring 15.

[0044] In the embodiment, the elastic assembly comprises a plurality of fixed rods 27 fixed on the adjusting block 2, the limiting block 25 is in sliding connection with the fixed rods 27, the fixed rods 27 are sleeved with second springs 28, one end of the second springs 28 is connected with the limiting block 25, and the other end is connected with the adjusting block 2; the bottom of the second magnetic shielding sleeve 18 is provided with a limiting groove 24, and the top of the limiting block 25 is provided with a limiting table 29 matched with the limiting groove 24, so as to ensure the stable reciprocating movement of the limiting block 25; when the second magnetic shielding sleeve 18 moves downward under the action of the first spring 13, and the limiting block 25 is aligned with the safety slot 10, the limiting block 25 is ejected and inserted into the safety slot 10 under the action of the second spring 28, at this time, the first spring 13 extrudes the safety slot 10 downward through the limiting block 25, so as to press the mounting cylinder 5 tightly on the table top 1, thereby effectively preventing the stage lamp from being installed stably when the magnetic force of the electromagnet 20 on the suction plate 8 disappears due to abnormal external factors; in addition, the adjusting block 2 is rotatably connected with a synchronous disc 11, the rotatable connection can adopt the form of bearing connection, and the synchronous disc 11 is provided with a plurality of inclined grooves, the bottom of the limiting block 25 is fixedly connected with a guide column 26 matched with the inclined grooves, so as to realize the synchronous movement of the plurality of limiting blocks 25, prevent some limiting blocks 25 from being clamped to affect the stability of installation, and also avoid the problem that the clamping is not in place due to the performance difference between the second springs 28.

[0045] It is worth mentioning that the upper part of the mounting cylinder 5 is slidably connected with a plug ring 9 for plugging the safety slot 10, the plug ring 9 is located in the sliding groove of the side wall of the mounting cylinder 5, and the inner diameter of the mounting cylinder 5 below the safety slot 10 is smaller than that of the mounting cylinder 5 above the safety slot 10, so as to ensure that the width of the plug ring 9 is the same as that of the safety slot 10, so that when the plug ring 9 moves downward, the safety slot 10 can be completely plugged, preventing the plug ring 9 from not completely plugging the safety slot 10, forming a small gap between the side wall of the plug ring 9 and the safety slot 10, and affecting the quick disassembly of the mounting cylinder 5 (when the position of the stage lamp needs to be adjusted), so that the plugging of the plug ring 9 to the safety slot 10 is beneficial to the quick lifting of the mounting cylinder 5, and improves the efficiency of adjustment.

[0046] The top of the plugging ring 9 is fixed with a plurality of L-shaped rods 19 which are in sliding connection with the mounting cylinder 5, one end of the L-shaped rods 19 penetrates the vertical slot 22 of the mounting cylinder 5, the plurality of L-shaped rods 19 are connected through the annular rod 6 which is located outside the mounting cylinder 5, so as to facilitate the up and down adjustment of the plugging ring 9, in addition, the upper and lower end faces of the plugging ring 9 are fixed with permanent magnets 21, the permanent magnet 21 located below is in the stable sealing state of the plugging ring 9 to the safety slot 10 through the suction with the bottom of the safety slot 10, and the permanent magnet 21 located above is in the stable opening state of the plugging ring 9 to the safety slot 10 through the suction with the inner top of the sliding slot, so as to facilitate the quick adjustment of the stage lamp; the inner circle of the mounting cylinder 5 located above the safety slot 10 is provided with a transition chamfer 23, the bottom of the transition chamfer 23 is provided with a round corner, the width size of the transition chamfer 23 is the width size of the plugging ring 9 to the inner circle, which prevents the local stress concentration of the mounting cylinder 5 and further ensures the smooth movement of the limiting block 25 from bottom to top.

[0047] In the embodiment, the mounting cylinder 5 is provided with a carrying table, which facilitates the position adjustment of the stage lamp, and the distance between the carrying table and the annular rod 6 is 1.5 times the standard middle finger width of an adult body, so at this time only the fingers are needed to be hooked or pushed away, so as to quickly realize the closing and opening of the safety slot 10, and further to speed up the quick adjustment of the mounting position of the lamp.

[0048] The application further discloses a use method of the stage lamp convenient to adjust, when the position of the stage lamp needs to be adjusted, the annular rod 6 is pushed down, the plugging ring 9 plugs the safety slot 10, then the electromagnet 20 is disconnected, the second magnetic shielding sleeve 18 moves downward under the action of the first spring 13, when the second magnetic shielding sleeve 18 abuts against the vertical rod 17, the mounting cylinder 5 can be directly taken out, then the T-shaped rod 14 is slid along the T-shaped slot 3 and adjusted to the appropriate position, then the mounting cylinder 5 is sleeved again and the electromagnet 20 is started, then the annular rod 6 is pushed to the top, and the adjustment is completed.

[0049] In use, if the power line of the electromagnet 20 is pulled out by human, or the power line is pulled out by accident when moving the table and chair, the attraction between the electromagnet 20 and the attraction plate 8 will be affected, and the electromagnet 20 and the attraction plate 8 will be separated. At this time, the second magnetic shielding sleeve 18 will move under the action of the first spring 13, and when the limiting block 25 is aligned with the safety slot 10, the limiting block 25 will be ejected and inserted into the safety slot 10 under the action of the second spring 28. The first spring 13 will press the safety slot 10 downward through the limiting block 25, so as to press the mounting cylinder 5 tightly on the table top 1 (at this time, there is a gap between the vertical rod 17 of the T-shaped rod 14 and the inner bottom of the sleeve 12), and then realize the secondary locking of the mounting cylinder 5, so as to prevent the phenomenon that the stage lamp is not firmly installed after the electromagnet 20 suddenly loses power. In this case, when the power is plugged in again, the attraction plate 8 will be attracted to the electromagnet 20 again, so as to restore the normal state.

[0050] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "upper", "lower", "left", "right", "front", "rear", and the like as can be used in this description simply refer to the orientation in the drawings.

[0051] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to make equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical solution of the present application, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. An easily adjustable stage lighting fixture, characterized in that, The device includes a lamp body, a mounting cylinder installed at the bottom of the lamp body, an electromagnet disposed inside the mounting cylinder, and an adjustment seat slidably connected to a table surface. The adjustment seat slides along the horizontal direction of the table surface and has a suction plate on it. The suction plate is located inside the mounting cylinder and above the table surface. When the suction plate is attracted to the electromagnet, both the mounting cylinder and the adjustment seat are pressed against the table surface, and the adjustment seat and the mounting cylinder have a tendency to move in opposite directions. The top of the mounting cylinder is fixed with a first magnetic shielding sleeve, the top of the adjusting seat is provided with a second magnetic shielding sleeve, the suction plate is embedded inside the second magnetic shielding sleeve, the electromagnet is embedded inside the first magnetic shielding sleeve, and the suction surfaces of the suction plate and the electromagnet are both located outside the second magnetic shielding sleeve and the first magnetic shielding sleeve. An adjusting block is fixedly connected to the platform. The adjusting block has a T-slot. The adjusting seat has a T-shaped rod that is slidably connected to the T-slot. The vertical rod of the T-shaped rod passes through the adjusting block. The bottom of the second magnetic shielding sleeve has a sleeve that is slidably connected to the T-shaped rod. The T-shaped rod has a first spring inside. One end of the first spring is fixedly connected to the inner bottom of the T-shaped rod, and the other end of the first spring is fixedly connected to the bottom of the second magnetic shielding sleeve. When the electromagnet is attracted to the suction plate, there is a gap between the T-shaped rod and the inner bottom of the sleeve. The mounting cylinder has a safety groove inside. The bottom of the second magnetic shielding sleeve is connected to several limiting blocks through an elastic component. After the electromagnet separates from the suction plate, the second magnetic shielding sleeve moves under the action of the first spring. The limiting blocks are inserted into the safety groove under the action of the elastic component. At this time, the mounting cylinder is pressed on the table under the action of the first spring, and there is a gap between the T-shaped rod and the inner bottom of the sleeve.

2. The easily adjustable stage lighting fixture according to claim 1, characterized in that, The first magnetic shielding sleeve has a through hole. When the electromagnet is attracted to the suction plate, the second magnetic shielding sleeve is embedded in the through hole, and there is a gap between the top of the second magnetic shielding sleeve and the bottom of the through hole.

3. The easily adjustable stage lighting fixture according to claim 1, characterized in that, A rubber sealing ring is fixed to the bottom of the mounting cylinder, and a sealing plate is provided at the lower part of the adjusting seat. A first chamfer is provided on the bottom inner ring of the rubber sealing ring, and a second chamfer is provided on the top outer edge of the sealing plate. Several sealing protrusions are provided on the second chamfer. When the electromagnet is attracted to the suction plate, the bottom of the rubber sealing ring is pressed against the table surface at the same time as the second chamfer is pressed against the first chamfer.

4. The easily adjustable stage lighting fixture according to claim 1, characterized in that, The elastic component includes a plurality of fixed rods fixed to the adjusting block, the limiting block being slidably connected to the fixed rods, and a second spring being sleeved on the fixed rod. One end of the second spring is connected to the limiting block, and the other end is connected to the adjusting block. The bottom of the second magnetic shielding sleeve is provided with a limiting groove, and the top of the limiting block is provided with a limiting platform that cooperates with the limiting groove.

5. The easily adjustable stage lighting fixture according to claim 4, characterized in that, A synchronous disk is rotatably connected to the adjusting block, and the synchronous disk is provided with several inclined grooves. A guide post that cooperates with the inclined groove is fixed to the bottom of the limiting block.

6. The easily adjustable stage lighting fixture according to claim 5, characterized in that, The inner diameter of the mounting cylinder located below the safety groove is smaller than the inner diameter of the mounting cylinder located above the safety groove. A blocking ring for sealing the safety groove is slidably connected to the upper part of the mounting cylinder. The width of the blocking ring is the same as that of the safety groove. Several L-shaped rods are fixedly connected to the top of the blocking ring and slidably connected to the mounting cylinder. One end of each L-shaped rod passes through the vertical slot of the mounting cylinder. The several L-shaped rods are connected by a ring rod located outside the mounting cylinder.

7. A method for using an easily adjustable stage lighting fixture, characterized in that, Applied to the easily adjustable stage lighting fixtures as described in claim 6; When the position of the stage lighting needs to be adjusted, simply push down the ring rod to block the safety groove with the plug ring, then disconnect the electromagnet, and you can directly lift out the mounting cylinder. Then adjust the adjusting seat to the appropriate position, put the mounting cylinder back in and activate the electromagnet, and then push the ring rod to the top to complete the adjustment.

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