CN114110481A - Universal ceiling lamp mounting device - Google Patents

Abstract

The invention relates to a universal ceiling lamp mounting device, which effectively solves the problems of difficult mounting and poor replacement flexibility of a ceiling lamp; the technical scheme includes that the ceiling lamp comprises an upper mounting portion and a lower mounting portion, the upper mounting portion comprises a mounting seat, the lower mounting portion comprises a core column and four supporting columns, a winding roll and four steel wire ropes are arranged on the upper mounting portion, the lower mounting portion is mounted on the ceiling lamp, each steel wire rope is used for hanging one corner of the ceiling lamp, the lower mounting portion and the ceiling lamp are pulled to a roof through the steel wire ropes to achieve butt joint of a structure and a circuit, and therefore the ceiling lamp is mounted; the invention can be installed by one person without climbing operation no matter whether the lamp is installed, disassembled, or maintained or replaced, can adapt to various ceiling lamp sizes, and has the function of automatic tensioning.

Description

Universal ceiling lamp mounting device

Technical Field

The invention relates to the field of home decoration, in particular to a universal ceiling lamp mounting device.

Background

At present, in high-rise cells in cities, because the floor height is low, owners generally select ceiling lamps during decoration; when the ceiling lamp is installed, a professional worker needs to drill a hole in the roof, then the ceiling lamp is fixed on the roof through an expansion bolt, an owner cannot install the ceiling lamp by himself, the ceiling lamp needs to be marked and positioned according to the position of an installation hole in the ceiling lamp before drilling, one person generally needs to command, one person or two persons ascend to move the ceiling lamp to a proper position, and then the ceiling lamp is marked at the position, corresponding to the installation hole, of the roof, so that great labor is consumed; furthermore, when a lamp is required to be replaced, the drill hole needs to be repositioned, if the new drill hole position is close to the original drill hole position, the hole is difficult to form, and if the new lamp is small and cannot cover the original hole, the new lamp needs to be repaired so as to avoid affecting the appearance;

although some installation structures exist at present for pulling the ceiling lamp in place through lifting ropes, the adopted main lifting rope is the simplest, the lower end of the main lifting rope is divided into a plurality of branches, the adaptability among a plurality of branch ropes is poor in the manner, the tightness among the branch ropes is difficult to keep the same, and the lamp is difficult to adjust to a horizontal suspension state, the length of each branch rope needs to be adjusted repeatedly to horizontally suspend the lamp as much as possible, and in addition, the roof is possibly uneven, the situation that one or more corners of the branch ropes of the ceiling lamp are loosened or the bearing tension is small inevitably occurs, so that the adhesion degree of the ceiling lamp and the roof is poor, even one or more corners of the ceiling lamp are suspended, and the ceiling lamp is easy to shake; the mode does not have the automatic tensioning function, and the ceiling lamp can be loosened and fall down when being hung for a long time;

in conclusion, the existing ceiling lamp needs climbing operation no matter whether the ceiling lamp is mounted, dismounted, overhauled or replaced, and for the ceiling lamp at a larger spot, more than one person may be needed to climb, and large tools such as a herringbone ladder are needed, so that the ceiling lamp is high in danger and very troublesome, and is very inconvenient for high-rise residents in cities; and the ceiling lamp mounting structure that a small number of current were carried and are drawn through the lifting rope has avoided the operation of ascending a height to a certain extent, but installation stability is poor, hangs the problem that can appear lax tenesmus for a long time.

Disclosure of Invention

The invention provides a universal ceiling lamp mounting device, which solves the problems of difficult mounting and poor replacement flexibility of a ceiling lamp.

The technical scheme includes that the ceiling lamp comprises an upper mounting part and a lower mounting part, the upper mounting part comprises a mounting base, the lower mounting part comprises a core column and four supporting columns, a downward mounting hole is formed in the mounting base, the core column can be inserted into the mounting hole, two arc-shaped metal sheets are mounted in the side wall of the mounting hole and are respectively communicated with a zero line live wire, two metal contacts are mounted on the outer wall of the core column and are respectively communicated with two poles of a ceiling lamp, and after the core column is inserted into the mounting hole, the metal contacts are contacted with the metal sheets to realize the communication of a ceiling lamp circuit;

a horizontal rotating shaft penetrates through the mounting seat, the rotating shaft is connected with a motor, four normally closed switches are mounted on the lower end face of the mounting seat, and the four normally closed switches are connected in parallel and then connected in series on a branch circuit where the motor is located; the rotating shaft is provided with five friction disks which synchronously rotate along with the rotating shaft and are positioned in the mounting holes, the leftmost friction disk is fixed on the rotating shaft, the rest four friction disks can axially move along the rotating shaft, and a winding wheel which is sleeved on the rotating shaft in an empty mode is arranged between every two adjacent friction disks; friction plates are attached to two ends of each winding wheel, a steel wire rope is wound on each winding wheel, an electromagnet positioned on the right side of the rightmost friction disk is fixed on the rotating shaft, the rightmost friction disk can be adsorbed when the electromagnet is electrified, and a first spring is arranged between the electromagnet and the rightmost friction disk;

the core column of the lower mounting part is tubular, four first rope threading holes are uniformly distributed on the circumference of the side wall of the core column, each supporting column is provided with a second rope threading hole, the lower end of each second rope threading hole is positioned on the bottom surface of the corresponding supporting column, and the upper end of each second rope threading hole is positioned on the side wall of the corresponding supporting column; the lower end of each steel wire rope penetrates into the core column from the upper end, then penetrates out of one of the first threading holes, penetrates into the second threading holes in the support columns in the corresponding directions from top to bottom, and is finally fixed at the bottoms of the support columns.

The electromagnet and the motor are connected in parallel and are connected between the zero line and the live line, the motor is connected with a first remote control switch in series, and the electromagnet is connected with a second remote control switch in series.

Two first wiring holes are formed in the side wall of the mounting seat, each metal sheet extends into the first wiring hole on the same side of the metal sheet, a first pressing sheet is arranged in each first wiring hole, and a first compression screw is arranged on each first pressing sheet; the two poles of the earth stub of motor and the two poles of the earth stub of electro-magnet all correspond and insert in two first wiring holes to insert motor and electro-magnet between zero line and live wire.

Two second wiring holes are formed in the lower end of the core column, a second pressing sheet is installed in each second wiring hole and is respectively communicated with the two metal contacts, and a second compression screw is installed in each second wiring hole.

But every the upper end of support column all wear an axial sliding's slide bar, install a second spring on the slide bar.

The outer wall of the core column is provided with two radial blind holes, the two metal contacts are respectively arranged in the two blind holes, and each blind hole is internally provided with a third spring.

An axial sliding groove is formed in the outer wall of the rotating shaft, and a sliding block arranged in the sliding groove is fixed on the inner walls of the four friction disks on the right side.

The lower end of each steel wire rope is connected with a hanging ring, and the bottom end of each supporting column is provided with a fixing screw in a screwing mode.

The front side and the rear side of the inner wall of the mounting seat are provided with guide grooves with downward openings, the guide grooves are in a horn mouth shape with a wide lower end and a narrow upper end, and the front side and the rear side of the outer wall of the mandrel are respectively fixed with a guide block.

The upper end of mount pad open and to have an holding tank for hold zero line and live wire.

The invention does not need climbing operation no matter whether the lamp is installed, disassembled, or overhauled or replaced, can be installed by one person, and can adapt to various sizes of the ceiling lamp; moreover, the invention can automatically adapt to the unevenness of the roof, so that the ceiling lamp is stably installed and has an automatic tensioning function.

Drawings

Fig. 1 is a front sectional view of a mount.

Figure 2 is a front cross-sectional view of the stem and support post mounted on the ceiling light chassis.

Fig. 3 is a front sectional view of the ceiling lamp after installation.

Fig. 4 is a front view of the ceiling lamp after installation.

Fig. 5 is a bottom view of the mount.

Fig. 6 is a front view of the stem.

Fig. 7 is a top view of the stem.

Fig. 8 is a front view of the rotating shaft.

Fig. 9 is an enlarged view of a position a in fig. 1.

Fig. 10 is an enlarged view of the position B in fig. 1.

Fig. 11 is an enlarged view of the position C in fig. 3.

Fig. 12 is an enlarged view of the position D in fig. 3.

Figure 13 is a schematic view of the threading route on the ceiling light chassis.

Fig. 14 is a circuit diagram of the present invention.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention comprises an upper installation part and a lower installation part, wherein the upper installation part is pre-embedded in a roof during building or is fixed on the roof through bolts at the later stage, the lower installation part is arranged on a chassis of a ceiling lamp below the upper installation part, and then the lower installation part is pulled to the roof together with the ceiling lamp to realize the butt joint of a structure and a circuit with the upper installation part so as to finish the installation of the ceiling lamp;

the upper mounting part comprises a mounting seat 1, the lower mounting part comprises a core column 2 and four supporting columns 3, a mounting hole 4 facing downwards is formed in the mounting seat 1, the core column 2 can be inserted into the mounting hole 4, two arc-shaped metal sheets 5 are arranged in the side wall of the mounting hole 4, the two metal sheets 5 are respectively communicated with a zero line live wire, two metal contacts 6 are arranged on the outer wall of the core column 2, the metal contacts 6 are respectively communicated with two poles of the ceiling lamp, and the metal contacts 6 are contacted with the metal sheets 5 after the core column 2 is inserted into the mounting hole 4 to realize the communication of a ceiling lamp circuit;

a horizontal rotating shaft 7 penetrates through the mounting seat 1, a ratchet and pawl mechanism is arranged on the rotating shaft 7 to enable the rotating shaft 7 to rotate only in a single direction, the rotating shaft 7 is connected with a motor 8, four normally closed switches 9 are arranged on the lower end face of the mounting seat 1, and the four normally closed switches 9 are connected in parallel and then connected in series on a branch circuit where the motor 8 is located; five friction discs 10 which synchronously rotate along with the rotating shaft 7 and are positioned in the mounting holes 4 are mounted on the rotating shaft 7, the leftmost friction disc 10 is fixed on the rotating shaft 7, the rest four friction discs 10 can axially move along the rotating shaft 7, a winding wheel 11 which is sleeved on the rotating shaft 7 in an empty mode is arranged between every two adjacent friction discs 10, the winding wheel can realize the upward pulling and downward releasing of a steel wire rope 13 through forward and reverse rotation, and the lower end of the steel wire rope 13 is fixed on the lower mounting part after the steel wire ropes 13 are released so that the lower mounting part and the ceiling lamp can be pulled to a roof; friction plates 12 are attached to two ends of each winding wheel 11, a steel wire rope 13 is wound on each winding wheel 11, an electromagnet 14 positioned on the right side of the rightmost friction disk 10 is fixed on the rotating shaft 7, the electromagnet 14 is electrified to absorb the rightmost friction disk 10, a first spring 15 is arranged between the electromagnet 14 and the rightmost friction disk 10, the plurality of winding wheels 11 are clamped by the plurality of friction disks 10 under the action of the first spring 15, the plurality of winding wheels 11 are driven to rotate by friction force to lift the ceiling lamp upwards when the rotating shaft 7 rotates, and after the ceiling lamp chassis is pulled upwards to a proper position, the four normally closed switches 9 are all pressed down to be disconnected, so that the motor 8 is powered off; when the ceiling lamp needs to be dismounted, when the electromagnet 14 is electrified, the electromagnet 14 applies rightward suction to the rightmost friction disc 10, the clamping force between the friction discs 10 is reduced, the friction force borne by the plurality of winding rolls is reduced, the winding rolls 11 are reversely rotated under the action of the self weight of the ceiling lamp, and the ceiling lamp slowly descends;

the stem 2 of the lower mounting part is tubular, four first rope penetrating holes 16 are uniformly distributed on the circumference of the side wall of the stem 2, a nut is screwed on the outer wall of the stem 2, a convex edge is arranged at the lower end of the mandrel, the mandrel penetrates into a wire hole in the center of the ceiling lamp chassis from bottom to top, then the nut is screwed on the mandrel from the upper end so as to fix the mandrel in the wire hole of the ceiling lamp, the four support columns 3 are also fixed in four screw holes at four corners of the ceiling lamp chassis in an installation mode of the nut and the convex edge, each support column 3 is provided with a second rope penetrating hole 17, the lower end of each second rope penetrating hole 17 is positioned on the bottom surface of the support column 3, the upper end of each second rope penetrating hole 17 is positioned on the side wall of the support column 3, and after the support columns 3 are mounted on the ceiling lamp chassis, the upper end of each second rope penetrating hole 17 is positioned above the chassis; the lower end of each steel wire rope 13 penetrates into the core column 2 from the upper end, then penetrates out of one first threading hole 16, then penetrates into a second threading hole in the support column 3 in the corresponding direction from top to bottom, and finally is fixed at the bottom of the support column 3; after threading like this, four wire rope 13 are towards the four corners on ceiling lamp chassis respectively, can prevent that ceiling lamp chassis four corners from weighing down.

The electromagnet 14 and the motor 8 are connected in parallel and are connected between zero line and live wire, the motor 8 is connected in series with a first remote control switch 18, the electromagnet 14 is connected in series with a second remote control switch 19, after the lower mounting part is assembled below and threading is completed, the ceiling lamp switch is closed, at the moment, the second remote control switch 19 is opened, the friction disc 10 presses the winding disc under the action of the first spring 15, then the first remote control switch 18 closes the motor 8 to drive the rotating shaft 7 to rotate, the rotating shaft 7 drives the winding discs to rotate through the friction force of the friction disc 10 to lift the ceiling lamp upwards, the resistance of the friction disc 10 enables the motor 8 not to fall down after power failure, when the ceiling lamp is required to be dismounted, the first remote control switch 18 is opened, the second remote control switch 19 is closed, the electromagnet 14 is electrified to adsorb the rightmost right friction disc 10 of the ceiling lamp, the clamping force of the friction disc 10 on the winding disc is reduced, and the friction force borne by the winding disc is reduced, the ceiling lamp slowly descends under the action of gravity.

Two first wiring holes 20 are formed in the side wall of the mounting seat 1, each metal sheet 5 extends into the first wiring hole 20 on the same side, a first pressing sheet 21 is arranged in each first wiring hole 20, and a first compression screw 22 is arranged on each first pressing sheet 21; the zero line and the live wire are respectively inserted into the two first wiring holes 20, and then the first pressing screw 22 is screwed down to enable the first pressing piece 21 to tightly press the zero line and the live wire on the metal sheet 5; the two poles of the earth stub of motor 8 and the two poles of the earth stub of electro-magnet 14 all correspond and insert in two first wiring holes 20 to with motor 8 and electro-magnet 14 access between zero line and live wire.

Two second wiring holes 23 are formed in the lower end of the core column 2, a second pressing piece 24 is installed in each second wiring hole 23, the two second pressing pieces 24 are respectively communicated with the two metal contacts 6, and a second compression screw 25 is installed in each second wiring hole 23; the two poles of the earth thread ends of the ceiling lamp are correspondingly inserted into the two second wiring holes 23 and then are pressed tightly by the second pressing screws 25, so that the two poles of the ceiling lamp are respectively communicated with the two metal contacts 6.

A sliding rod 26 capable of axially sliding penetrates through the upper end of each supporting column 3, and a second spring 27 is mounted on each sliding rod 26; when the ceiling lamp is lifted upwards and pulled to a proper position, the upper ends of the sliding rods 26 on the four supporting columns 3 are propped against the roof, the second springs 27 are compressed, the four corners of the ceiling lamp are supported, and meanwhile, the ceiling lamp has certain flexibility, and can better adapt to uneven roofs.

Two radial blind holes 28 are formed in the outer wall of the core column 2, the two metal contacts 6 are respectively arranged in the two blind holes 28, and a third spring 29 is arranged in each blind hole 28; after the core column 2 is inserted in the mounting hole 4 in place, the metal contact 6 is in contact with the metal sheet 5, and the third spring 29 applies outward pressure to the metal contact 6 to ensure effective connection between the metal contact 6 and the metal sheet 5.

An axial sliding groove 30 is formed in the outer wall of the rotating shaft 7, and a sliding block 31 arranged in the sliding groove 30 is fixed on the inner walls of the four friction discs 10 on the right side, so that the friction discs 10 can slide along the axial direction of the rotating shaft 7 and cannot rotate relative to the rotating shaft 7.

The lower end of each steel wire rope 13 is connected with a hanging ring 32, and the bottom end of each supporting column 3 is screwed with a fixing screw 33; when the ceiling lamp is installed, the hanging ring 32 is hung below the ceiling lamp to pull down the steel wire rope 13, after the threading of the steel wire rope 13 is completed, the hanging ring 32 is sleeved on the fixing screw 33, and then the fixing screw 33 is screwed at the lower end of the support column 3 to fix the end part of the steel wire rope 13.

The front side and the rear side of the inner wall of the mounting seat 1 are provided with guide grooves 34 with downward openings, the guide grooves 34 are in a bell mouth shape with wide lower end and narrow upper end, and the front side and the rear side of the outer wall of the mandrel are respectively fixed with a guide block 35; when the ceiling lamp is lifted upwards and the core column 2 is inserted into the mounting hole 4, the guide block 35 enters the guide groove 34, and the ceiling lamp is centered under the guide effect of the guide groove 34.

The upper end of the mounting base 1 is provided with a holding groove 36 for holding a neutral wire and a live wire, so that the mounting base 1 can be tightly attached to a roof.

The upper mounting part can be embedded in a roof during building, or fixed on the roof through bolts at a later stage, or the upper mounting part can be embedded in the roof by slotting on the roof at the later stage, the free end of the steel wire rope 13 is suspended on the roof, and the embedding and embedding forms are more attractive.

When the ceiling lamp is installed, the core column 2 of the lower installation part penetrates into an electric wire hole in the center of a ceiling lamp chassis from bottom to top and is screwed by nuts, the four support columns 3 penetrate into screw holes in four corners of the ceiling lamp chassis from bottom to top respectively and are screwed by nuts, then the four steel wire ropes 13 are pulled down, the lower end of each steel wire rope 13 penetrates into the core column 2 from the upper end of the core column 2, then penetrates out of one first rope penetrating hole 16, then penetrates into second rope penetrating holes in the support columns 3 in corresponding directions from top to bottom, then the hanging rings 32 are sleeved on the fixing screws 33, then the fixing screws 33 are screwed at the lower ends of the support columns 3 to fix the free ends of the steel wire ropes 13, and therefore, the four corners of the ceiling lamp chassis can be prevented from falling down after rope penetrating;

because the four wire winding wheels 11 are all in friction transmission, when a support column 3 at a certain corner contacts a roof firstly, a steel wire rope 13 corresponding to the support column 3 is tensioned, the resistance of the corresponding wire winding wheel 11 is increased, although the rotating shaft 7 continues to rotate, the wire winding wheel 11 slips and does not wind the steel wire rope 13 any longer, the wire winding wheels 11 corresponding to other steel wire ropes 13 which are not tensioned continue to rotate along with the rotating shaft 7 until the steel wire ropes 13 are tensioned, and after the four steel wire ropes 13 are tensioned, the four normally-closed switches 9 are all pressed down and disconnected, so that the motor 8 is powered off, and the rotating shaft 7 stops rotating; therefore, when the motor 8 stops rotating, the four steel wire ropes 13 keep the same tension, and the four support columns 3 are all in contact with the roof and keep the same supporting force, so that all corners of the ceiling lamp chassis are attached to the roof, and a certain corner or a plurality of corners are prevented from being suspended; the traditional mode of obliquely pulling four independent lifting ropes on the main rope cannot realize the automatic adaptive function, the roof cannot be absolutely flat, and the ceiling lamp chassis cannot be completely suspended horizontally, so that the traditional hanging mode inevitably causes the conditions of untight attachment with the roof, suspension of one corner or several corners and easy shaking and falling.

After the wire rope 13 is threaded and hung on the lower mounting part, the switch of the ceiling lamp is closed, then the first remote control switch 18 is closed, at the moment, four normally-closed switches 9 are all in a closed state, the motor 8 is electrified, the second remote control switch 19 is in an open state, the friction disks 10 clamp a plurality of winding reels under the action of the first spring 15, the motor 8 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the winding reels to rotate to lift the ceiling lamp upwards, after the ceiling lamp is lifted to a proper position, the core column 2 is inserted into the mounting hole 4, the metal contact 6 is in contact with the metal sheet 5 to switch on the circuit of the ceiling lamp, the four normally-closed switches 9 are pressed down and disconnected by the nuts on the core column 2, the motor 8 is powered off and stops rotating, at the moment, the second springs 27 on the four support columns 3 are in a compressed state, the chassis of the ceiling lamp forms a stable compression attaching state with the roof under the supporting force of the support columns 3 and the pulling force of the wire rope 13, without the suspension and shaking.

If ceiling lamp lax tenesmus in long-time suspension process, thereby one of them or several normally closed switch 9 is loosened the closure, when ceiling lamp is lighted circular telegram, motor 8 also can be thereupon the circular telegram and rotate and tighten up wire rope 13, until four normally closed switch 9 all compressed tightly closed, the lax tenesmus condition that the ceiling lamp appears hanging in midair for a long time can be avoided to this kind of feedback mode of motor 8, make ceiling lamp keep permanently with the stable attached state on roof.

When the ceiling lamp needs to be dismounted, the switch of the ceiling lamp is closed, the first remote control switch 18 is disconnected to cut off the circuit of the motor 8, the second remote control switch 19 is closed, the electromagnet 14 is electrified to apply rightward suction to the friction disc 10, the friction resistance of the friction disc 10 to the winding roll is reduced, and the ceiling lamp slowly descends under the action of gravity.

The invention has the following technical effects:

firstly, after the mounting base 1 is pre-buried or mounted on a roof in a later period, the ceiling lamp is mounted in the later period without drilling and ascending, the operations such as mounting and replacing the ceiling lamp can be completed on the ground, and as for the later-period fixing operation of the mounting base 1, the mounting base 1 has small volume and bottom area, the scribing, drilling and mounting are simple, and the scribing, drilling and mounting can be completed by one person;

secondly, the ceiling lamp can be installed by one person without professional installation workers;

thirdly, holes do not need to be drilled again when the lamp is replaced, the replacement difficulty is reduced, meanwhile, the problems that the holes are difficult to form and the original holes affect the appearance are avoided, and the threading mode of the steel wire rope 13 can adapt to any size of the ceiling lamp, so that the lamp can be replaced more conveniently and conveniently;

fourthly, compared with the existing few installation structures lifted by lifting ropes, the four winding wheels 11 are all in friction transmission, so that when the motor 8 stops rotating, the four steel wire ropes 13 are all tensioned and keep the same tension, and the four support columns 3 are all in contact with the roof and keep the same supporting force, so that all corners of the chassis of the ceiling lamp are attached to the roof, and a certain corner or a plurality of corners are prevented from being suspended; the ceiling lamp has the function of loosening feedback and automatic tensioning, and can avoid the situation that the ceiling lamp is loosened and falls down when being hung for a long time;

in conclusion, no matter the lamp is installed, disassembled, or overhauled or replaced, the lamp can be installed by one person without climbing, and the lamp can adapt to various sizes of the ceiling lamp; moreover, the invention can automatically adapt to the unevenness of the roof, so that the ceiling lamp is stably installed and has an automatic tensioning function.

Claims (10)

1. The utility model provides a general type ceiling lamp installation device, including last installation department and lower installation department, a serial communication port, it includes mount pad (1) to go up the installation department, lower installation department includes a stem (2) and four support columns (3), it has a mounting hole (4) down to open on mount pad (1), stem (2) can insert in mounting hole (4), be equipped with two curved sheetmetals (5) in the mounting hole (4) lateral wall, two sheetmetals (5) are the switch-on with the zero line live wire respectively, install two metal contact (6) on stem (2) outer wall, metal contact (6) are the switch-on with the two poles of the ceiling lamp respectively, metal contact (6) and sheetmetal (5) contact realize the switch-on of ceiling lamp circuit after stem (2) insert in mounting hole (4);

a horizontal rotating shaft (7) penetrates through the mounting seat (1), the rotating shaft (7) is connected with a motor (8), four normally closed switches (9) are installed on the lower end face of the mounting seat (1), and the four normally closed switches (9) are connected in parallel and then connected in series on a branch circuit where the motor (8) is located; five friction discs (10) which synchronously rotate along with the rotating shaft (7) and are positioned in the mounting holes (4) are mounted on the rotating shaft (7), the leftmost friction disc (10) is fixed on the rotating shaft (7), the rest four friction discs (10) can axially move along the rotating shaft (7), and a winding wheel (11) which is sleeved on the rotating shaft (7) in an empty mode is arranged between every two adjacent friction discs (10); friction plates (12) are attached to two ends of each winding wheel (11), a steel wire rope (13) is wound on each winding wheel (11), an electromagnet (14) located on the right side of the rightmost friction disc (10) is fixed on the rotating shaft (7), the electromagnet (14) is electrified to adsorb the rightmost friction disc (10), and a first spring (15) is arranged between the electromagnet (14) and the rightmost friction disc (10);

the core column (2) of the lower mounting part is tubular, four first rope threading holes (16) are uniformly distributed on the side wall of the core column (2) in the circumferential direction, each supporting column (3) is provided with one second rope threading hole (17), the lower end of each second rope threading hole (17) is positioned on the bottom surface of the corresponding supporting column (3), and the upper end of each second rope threading hole is positioned on the side wall of the corresponding supporting column (3); the lower end of each steel wire rope (13) penetrates into the core column (2) from the upper end, then penetrates out of one first threading hole (16), then penetrates into a second threading hole in the support column (3) in the corresponding direction from top to bottom, and finally is fixed at the bottom of the support column (3).

2. The mounting device for the universal ceiling lamp according to claim 1, wherein the electromagnet (14) and the motor (8) are connected in parallel and are connected between live wires of a zero line, the motor (8) is connected in series with a first remote control switch (18), and the electromagnet (14) is connected in series with a second remote control switch (19).

3. The mounting device for the universal ceiling lamp according to claim 1, wherein the side wall of the mounting base (1) is provided with two first wiring holes (20), each metal sheet (5) extends into the first wiring hole (20) on the same side, a first pressing sheet (21) is arranged in each first wiring hole (20), and each first pressing sheet (21) is provided with a first compression screw (22); the two poles of the earth stub of motor (8) and the two poles of the earth stub of electro-magnet (14) all correspond and insert in two first wiring holes (20) to insert motor (8) and electro-magnet (14) between zero line and the live wire.

4. The mounting device for the universal ceiling lamp according to claim 1, wherein the lower end of the stem (2) is provided with two second wiring holes (23), each second wiring hole (23) is internally provided with a second pressing piece (24), the two second pressing pieces (24) are respectively communicated with the two metal contacts (6), and each second wiring hole (23) is internally provided with a second compression screw (25).

5. A universal ceiling lamp mounting device according to claim 1, wherein the upper end of each supporting column (3) is provided with an axially slidable sliding rod (26), and the sliding rod (26) is provided with a second spring (27).

6. A universal ceiling lamp mounting device according to claim 1, characterized in that the outer wall of the stem (2) is provided with two radial blind holes (28), two metal contacts (6) are respectively arranged in the two blind holes (28), and each blind hole (28) is provided with a third spring (29).

7. The mounting device for a universal ceiling lamp according to claim 1, wherein the outer wall of the rotating shaft (7) is provided with an axial sliding groove (30), and the inner walls of the four friction disks (10) on the right side are respectively fixed with a sliding block (31) arranged in the sliding groove (30).

8. The mounting device for the universal ceiling lamp according to claim 1, wherein the lower end of each steel wire rope (13) is connected with a hanging ring (32), and the bottom end of each supporting column (3) is screwed with a fixing screw (33).

9. The mounting device for the universal ceiling lamp according to claim 1, wherein the front side and the rear side of the inner wall of the mounting seat (1) are provided with guide grooves (34) with downward openings, the guide grooves (34) are in a bell mouth shape with a wide lower end and a narrow upper end, and the front side and the rear side of the outer wall of the mandrel are respectively fixed with a guide block (35).

10. The mounting device for the universal ceiling lamp according to claim 1, wherein the mounting base (1) is provided with a receiving groove (36) at the upper end thereof for receiving a neutral wire and a live wire.

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