CN108799782B - Mounting structure of ceiling type equipment and assembling and disassembling method thereof - Google Patents

Abstract

The invention discloses a mounting structure of ceiling type equipment, which comprises a fixed seat, a movable buckle and a tray, wherein the fixed seat is fixed on the fixed seat on the ceiling or the wall top wall, the tray is used for mounting the ceiling type equipment, the fixed seat, the movable buckle and the tray are rotatably assembled together, and the tray, the movable buckle and the fixed seat are locked and unlocked by rotating the tray to different directions and different angles. The invention also discloses a loading and unloading method of the mounting structure of the ceiling type equipment. The mounting structure of the ceiling type equipment has reliable overall performance, can effectively prevent disassembly, prevents idle personnel from stealing and damaging products, and can be generally quickly mounted and disassembled by related personnel familiar with the product structure. The mounting structure of the ceiling type equipment can not only package and mount and fix products, but also add a certain anti-dismounting function for the products.

Description

Mounting structure of ceiling type equipment and assembling and disassembling method thereof

Technical Field

The invention relates to the technical field of audio and video communication, in particular to a mounting structure of a ceiling type device and a mounting and dismounting method thereof, and particularly relates to a mounting structure of a ceiling type sound pick-up or a ceiling type monitor device and a mounting and dismounting method thereof.

Background

Currently, ceiling type devices such as sound pickup and monitoring equipment on the market adopt two-stage installation when adopting ceiling type installation, mostly: the equipment base is fixed on the top end of a suspended ceiling or a wall, then the equipment is sleeved into the hanging buckle on the base, and the equipment is further fixed on the base through screws. The problems with this type of mounting are: the installation process is complicated, and the installation tool is easy to be disassembled by non-workers by using common tools; the disassembly difficulty is high when the equipment is repaired or maintained, and professional personnel are required to operate the equipment.

Disclosure of Invention

One of the technical problems to be solved by the present invention is to provide a mounting structure of a ceiling type device, which is simple in mounting process, not easy to be dismounted by non-working personnel with common tools, capable of being dismounted by people familiar with the product or according to the operation flow of the operation instruction, and less difficult to dismount in the process of device maintenance or repair, aiming at the above-mentioned shortcomings of the existing mounting method of the ceiling type device.

The second technical problem to be solved by the invention is to provide a method for assembling and disassembling the mounting structure of the ceiling type equipment.

The technical problem to be solved by the invention can be realized by the following technical scheme:

mounting structure of ceiling type equipment, including fixing base, activity buckle and tray, wherein the fixing base is fixed on furred ceiling or wall roof, the tray is used for installing ceiling type equipment, the rotatable assembly of fixing base, activity buckle and tray three is in the same place, through with the tray is to the rotation of equidirectional not and rotate the angle of difference and realize the tray with the activity buckle with the locking and the unblock of fixing base.

In a preferred embodiment of the present invention, the fixing base has an outer circumference and an inner circular hole, at least one outer locking lug protruding radially outward is disposed on the outer circumference of the fixing base, at least one inner locking lug protruding radially inward is disposed on the hole edge of the inner circular hole of the fixing base, and a first one-way buckle tooth protruding axially is disposed on the inner locking lug; at least one first elastic unidirectional buckle tooth is circumferentially arranged on the fixed seat;

the movable buckle comprises a cylinder, at least one first clamping lug which is arranged on the peripheral surface of the first end of the cylinder and extends out in the radial direction, and at least one second clamping lug which is arranged on the peripheral surface of the second end of the cylinder and extends out in the radial direction, wherein the first clamping lug and the second clamping lug are staggered in the circumferential direction, a first one-way buckle groove is arranged on one axial end surface of the first clamping lug, and a second one-way buckle groove is arranged on one axial end surface of the second clamping lug;

the tray is provided with an outer circumference and an inner circular hole, at least one locking groove and at least one unlocking notch are arranged on the axial end face of the outer circumference of the tray facing to the side of the fixed seat, a limiting block is arranged in the middle of each locking groove, each locking groove is divided into a first half locking groove and a second half locking groove by the limiting block, and the unlocking notch is arranged between the first half locking groove and the second half locking groove in the two adjacent locking grooves; a movable buckle positioning cylinder axially extending towards the direction of the fixed seat is arranged on the hole edge of the inner circular hole of the tray, at least one elastic movable clamping hook protruding in the radial direction is arranged on the outer cylinder wall of one end, away from the inner circular hole of the tray, of the movable buckle positioning cylinder, and at least one second elastic unidirectional buckle tooth protruding in the axial direction is arranged on the axial end face of one side, facing the fixed seat, of the tray; and at least one second one-way buckle tooth and at least one guide rail are also arranged on the axial end surface of the side, facing the fixed seat, of the tray.

In a preferred embodiment of the present invention, a circumference of the first resilient one-way latch is located between an outer circumference of the fixing base and a rim of the inner circular hole.

In a preferred embodiment of the present invention, the first elastic unidirectional buckle tooth is composed of an elastic thin wall and an elastic hook at the end of the elastic thin wall, and the starting end of the elastic thin wall of the elastic unidirectional buckle tooth is connected with the fixed seat.

In a preferred embodiment of the present invention, the circumferential diameter of the second elastic one-way latch is larger than the outer diameter of the movable latch positioning cylinder.

In a preferred embodiment of the present invention, a gap is formed on the fixing seat on both sides of the second elastic unidirectional buckle tooth.

In a preferred embodiment of the present invention, a gap is formed on each of the movable buckle positioning cylinders on both sides of the elastic movable buckle.

In a preferred embodiment of the present invention, the circumferential diameter of the second one-way latch is larger than the circumferential diameter of the second elastic one-way latch but smaller than the diameter of the inner edge of the locking groove.

In a preferred embodiment of the present invention, the guide rail is closer to an axial end surface of the tray on a side facing the fixed seat than the second one-way catching teeth.

In a preferred embodiment of the present invention, the fixed seat, the movable buckle and the tray are all injection molded by using ABS material.

The assembling and disassembling method of the installation structure of the ceiling type equipment comprises the steps that when the installation structure is assembled, the movable buckle is firstly sleeved on the movable buckle positioning cylinder on the tray, when the installation structure is sleeved, the cylinder in the movable buckle forces the elastic movable hook on the movable buckle positioning cylinder to radially and inwardly contract, when the first end of the cylinder in the whole movable buckle passes over the elastic movable hook on the movable buckle positioning cylinder, the elastic movable hook on the movable buckle positioning cylinder is outwards restored under the action of elasticity, so that the elastic movable hook on the movable buckle positioning cylinder is hooked on the first end face of the cylinder in the movable buckle, then the movable buckle is rotated, the second one-way buckle groove on the second lug of the movable buckle is mutually meshed with the second elastic one-way buckle tooth on the tray, so that the movable buckle can only rotate towards one direction on the tray, cannot rotate in the direction opposite to this direction;

after the movable buckle and the tray are assembled, the tray and the movable buckle are installed on the fixed seat and locked, and the specific process is as follows:

aligning the unlocking notch on the tray with the outer locking lug on the fixed seat and pushing the tray towards the fixed seat to enable the outer locking lug on the fixed seat to fall into the unlocking notch on the tray, then the tray is rotated towards the first direction and drives the movable buckle to rotate towards the first direction together, so that the outer locking lug on the fixed seat is clamped into the first half locking groove in one locking groove on the tray, until the first elastic unidirectional buckle tooth on the fixed seat is guided by the guide rail on the tray to hook the corresponding second unidirectional buckle tooth on the tray to lock the fixed seat, the tray and the movable buckle, after the fixed seat is locked with the tray and the movable buckle, the tray and the movable buckle can only continue to rotate towards a first direction and cannot rotate towards a second direction opposite to the first direction;

when the tray needs to be disassembled, the tray needs to be unlocked firstly, and the specific unlocking process is as follows:

the tray and the movable buckle continue to rotate towards the first direction, so that the first elastic unidirectional buckle tooth on the fixed seat is disengaged from the second unidirectional buckle tooth corresponding to the tray, meanwhile, the first elastic unidirectional buckle tooth on the fixed seat is separated from the path of the corresponding second unidirectional buckle tooth on the tray under the guidance of the guide rail on the tray, so as to ensure that the corresponding second unidirectional buckle tooth on the tray can not touch the first elastic unidirectional buckle tooth on the fixed seat when rotating towards the second direction, when the outer locking lug on the fixed seat touches a limiting block in a locking groove and stops rotating, at the moment, a first one-way buckle groove on a first clamping lug on the movable buckle is mutually meshed with a first one-way buckle tooth on an inner locking lug of the fixed seat, so that the movable buckle and the fixed seat are meshed together;

then the tray is rotated towards a second direction opposite to the first direction, at the moment, as the movable buckle is meshed with the fixed seat together, a second one-way buckle groove on a second clamping lug on the movable buckle is separated from meshing with a second elastic one-way buckle tooth on the tray, when the tray is rotated towards the second direction opposite to the first direction, the movable buckle does not rotate towards the second direction along with the tray, in addition, as a first elastic one-way buckle tooth on the fixed seat is separated from a path where a corresponding second one-way buckle tooth on the tray under the guidance of a guide rail on the tray, the corresponding second one-way buckle tooth on the tray does not touch the first elastic one-way buckle tooth on the fixed seat when the tray is rotated towards the second direction;

when the tray rotates to the position that the unlocking notch on the tray is aligned with the outer locking lug of the fixed seat in the second direction, the tray and the movable buckle still cannot be unlocked with the fixed seat because the movable buckle and the fixed seat are meshed together and cannot be axially separated, and the tray and the fixed seat can only float relatively in the axial direction;

if the tray needs to be unlocked, the tray is pressed towards the direction of the fixed seat, and meanwhile, the tray continues to rotate towards a second direction, so that the outer locking lug on the fixed seat is clamped into a second half locking groove in another locking groove on the tray, when the outer locking lug on the fixed seat stops rotating after contacting a limiting block in another locking groove, at the moment, a second one-way buckle groove on a second lug of the movable buckle is meshed with a second elastic one-way buckle tooth on the tray again, and meanwhile, a one-way buckle groove on a first lug of the movable buckle is separated from a first one-way buckle tooth on an inner locking lug on the fixed seat;

the tray can synchronously drive the movable buckle to rotate towards the first direction at the moment, the tray can be unlocked from the fixed seat until the tray rotates towards the first direction to the position that the unlocking notch on the tray is aligned with the outer locking lug on the fixed seat, and meanwhile, the first clamping lug on the movable buckle can be separated from the inner locking lug on the fixed seat in the radial direction, so that the tray and the movable buckle can be detached from the fixed seat together.

Due to the adoption of the technical scheme, the mounting structure of the ceiling type equipment has the advantages of simple overall structure, low cost, no cost difference from the conventional mounting structure, few accessories, simple processing, no complex die structures such as slide and inclined top and the like, and low later-stage assembly requirement. The overall structure size is small and exquisite frivolous, can adapt to the cooperation demand that most inhale a installation product.

The mounting structure of the ceiling type equipment has reliable overall performance, can effectively prevent disassembly, prevents the product from being stolen and damaged by idle personnel, and can be generally quickly mounted and disassembled by related personnel familiar with the product structure. The mounting structure of the ceiling type equipment can not only package and mount and fix products, but also add a certain anti-dismounting function for the products.

Drawings

Fig. 1 is a schematic structural view of a holder in a mounting structure of a ceiling type device according to the present invention, viewed from one direction.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic structural view of a holder in the mounting structure of the ceiling type device of the present invention, viewed from another direction.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3.

Fig. 5 is a schematic view of a movable buckle structure in the mounting structure of the ceiling type device according to the present invention.

Fig. 6 is a schematic view showing a structure of a tray in a mounting structure of the ceiling type device according to the present invention.

Fig. 7 is an enlarged schematic view of a portion a of fig. 6.

Fig. 8 is an enlarged schematic view of fig. 6 at B.

Fig. 9 is an assembly view of the mounting structure of the ceiling type device of the present invention viewed from one direction.

Fig. 10 is an enlarged schematic view of fig. 9 at a.

Fig. 11 is an assembly view of the mounting structure of the ceiling type device of the present invention viewed from another direction.

Fig. 12 is an enlarged schematic view of fig. 11 at a.

Fig. 13 is a schematic view of the mounting structure of the ceiling-mounted device according to the present invention, wherein the holder and the tray are engaged.

Fig. 14 is an enlarged schematic view of a portion a of fig. 13.

Fig. 15 is a schematic view of the mounting structure of the ceiling-mounted device according to the present invention, wherein the holder and the tray are in a disengaged state.

Fig. 16 is an enlarged schematic view of fig. 15 at a.

Detailed Description

The mounting structure of the ceiling type equipment comprises a fixed seat 100, a movable buckle 200 and a tray 300, wherein the fixed seat 100, the movable buckle 200 and the tray 300 are all formed by injection molding of ABS materials. The holder 100 is fixed to a ceiling or wall or ceiling wall using fasteners such as expansion bolts, and the tray 300 is used to mount ceiling-type equipment such as a microphone or monitoring equipment.

Referring to fig. 1 to 4, the fixing base 100 has an outer circumference 110 and an inner circumference 120, three outer locking lugs 130 protruding radially outward are uniformly distributed on the outer circumference 110 of the fixing base 100, four inner locking lugs 140 protruding radially inward are uniformly distributed on the hole edge of the inner circumference 120 of the fixing base 100, and a one-way latch 141 protruding axially is provided on each inner locking lug 140.

Three elastic one-way fastening teeth 150 are uniformly distributed on the fixed seat 100 in the circumferential direction, and the circumference of the three elastic one-way fastening teeth 150 is located between the outer circumference 110 of the fixed seat 100 and the hole edge of the inner circular hole 120. Each elastic one-way latch 150 is composed of an elastic thin wall 151 and an elastic hook 152 located at the end of the elastic thin wall 151, and the beginning of the elastic thin wall 151 of each elastic one-way latch 150 is connected with the fixing base 100.

In addition, an axially protruding hook 131 is further disposed at the end of each outer locking lug 130, an axially protruding hook 142 is further disposed at the end of each inner locking lug 140, and the axial protruding direction of the hook 142 is the same as the axial protruding direction of the one-way latch 141.

In addition, three through holes 160 are uniformly distributed on the fixing base 100 in the upper sea circumference, so that the expansion bolts pass through the through holes 160 to fix the fixing base 100 on the suspended ceiling or the wall or the top wall.

Referring to fig. 5, the movable buckle 200 includes a cylinder 210, four engaging lugs 220 uniformly disposed on the outer peripheral surface of the first end 211 of the cylinder 210 and extending radially, and four engaging lugs 230 uniformly disposed on the outer peripheral surface of the second end 212 of the cylinder 210 and extending radially, wherein the engaging lugs 220 and the engaging lugs 230 are staggered by 45 ° in the circumferential direction, a one-way engaging groove 222 is disposed on an axial end surface 221 of the engaging lugs 220, and a one-way engaging groove 232 is disposed on an axial end surface 231 of the engaging lugs 230. The one-way catching groove 222 and the one-way catching groove 232 have a slant edge and a straight edge, and the slant directions of the slant surfaces in the one-way catching groove 222 and the one-way catching groove 232 are the same.

Referring to fig. 6 to 8, the tray 300 has an outer circumference 310 and an inner circumference 320, three locking grooves 330 and three unlocking notches 390 are uniformly distributed on an axial end surface 311 of the outer circumference 310 of the tray 300 facing the side of the fixed base 100, a stopper 331 is disposed at a middle position of each locking groove 330, the stopper 331 divides each locking groove 330 into a first half locking groove 332 and a second half locking groove 333, and each unlocking notch 390 is disposed between the first half locking groove 332 and the second half locking groove 333 in two adjacent locking grooves 330.

A movable buckle positioning cylinder 340 axially extending towards the direction of the fixed seat 100 is arranged on the hole edge of the inner circular hole 320 of the tray 300, and four elastic movable clamping hooks 350 protruding in the radial direction are uniformly distributed on the outer cylinder wall of the end of the movable buckle positioning cylinder 340 far away from the inner circular hole 320 of the tray 300. In order to increase the elasticity of each elastic movable hook 350, a gap 401 is formed on the movable hook positioning cylinder 340 at both sides of each elastic movable hook 350.

Four axially protruding elastic one-way buckle teeth 360 are uniformly distributed on the axial end surface 311 of the tray 300 facing the fixed seat 100, and the circumferential diameter of the four elastic one-way buckle teeth 360 is larger than the outer diameter of the movable buckle positioning cylinder 340. In order to increase the elasticity of each elastic one-way latch 360, a slit 101 is formed on the fixing base 100 on both sides of each elastic one-way latch 360.

Three sets of one-way buckle teeth 370 and three guide rails 380 are uniformly distributed on the axial end surface 311 of the tray 300 facing the fixed seat 100, and the circumferential diameter of the three sets of one-way buckle teeth 370 is larger than that of the four elastic one-way buckle teeth 360 but smaller than the diameter of the inner edges of the three locking grooves 330; the guide rails 380 are closer to the axial end surface 311 of the tray 300 facing the fixed seat 100 than the one-way fastener 370.

The tray 300 is used to mount a ceiling type device.

Referring to fig. 9 to 16, during assembly, the movable buckle 200 is firstly sleeved on the movable buckle positioning cylinder 340 of the tray 300, when the movable buckle is sleeved, the cylinder 210 in the movable buckle 200 forces the elastic movable hook 350 on the movable buckle positioning cylinder 340 to contract radially inwards, after the first end 211 of the cylinder 210 in the whole movable buckle 200 passes over the elastic movable hook 350 on the movable buckle positioning cylinder 340, the elastic movable hook 350 on the movable buckle positioning cylinder 340 is restored outwards under the action of elastic force, so that the elastic movable hook 350 on the movable buckle positioning cylinder 340 is hooked on the end surface of the first end 211 of the cylinder 210 in the movable buckle 200, then the movable buckle 200 is rotated, so that the one-way buckle groove 231 on the lug 230 of the movable buckle 200 is engaged with the elastic one-way buckle tooth 360 on the tray 300, so that the movable buckle 200 can only rotate in one direction (e.g. anticlockwise) on the tray 300, cannot be rotated in the opposite direction (e.g., clockwise) to this direction.

After the movable buckle 200 is assembled with the tray 300, the tray 300 and the movable buckle 200 are mounted on the fixed seat 100 and locked, and the specific process is as follows:

the unlocking notch 390 of the tray 300 is aligned with the outer locking lug 130 of the fixing base 100 and the tray 300 is pushed toward the fixing base 100, so that the outer locking lug 130 of the fixing base 100 falls into the unlocking notch 390 of the tray 300, then, the tray 300 is rotated in a first direction, for example, counterclockwise, and drives the movable buckle 200 to rotate together in the first direction, so that the outer locking lug 130 of the fixing base 100 is snapped into the first half locking groove 332 of the locking groove 330 of the tray 300, until the elastic hook 152 on the elastic one-way latch 150 on the fixed seat 100 is guided by the guide rail 380 on the tray 300 to hook the corresponding one-way latch 370 on the tray 300, so as to lock the fixed seat 100 with the tray 300 and the movable latch 200, and after the fixed seat 100 is locked with the tray 300 and the movable latch 300, the tray 300 and the movable catch 200 can only continue to rotate in a first direction, e.g., counterclockwise, and cannot rotate in a second direction, e.g., clockwise, opposite the first direction, e.g., counterclockwise.

When the tray 300 and the movable buckle 200 need to be detached, the tray 300 and the movable buckle 200 need to be unlocked firstly, and the specific unlocking process is as follows:

the tray 300 and the movable buckle 200 are further rotated in a first direction, for example, counterclockwise, so that the elastic hooks 152 of the elastic unidirectional buckle teeth 150 on the fixed seat 100 are disengaged from the corresponding unidirectional buckle teeth 370 on the tray 300, meanwhile, the elastic hook 152 of the elastic one-way latch 150 of the fixing base 100 is guided by the guide rail 380 of the tray 300 to be separated from the path of the corresponding one-way latch 370 of the tray 300, to ensure that the corresponding one-way latch 370 on the tray 300 will not touch the elastic hook 152 on the elastic one-way latch 150 on the fixing base 100 when rotating in the second direction, for example clockwise, when the outer locking lug 130 of the fixing base 100 contacts the stop 331 in the locking slot 330, the rotation is stopped, and at this time, the one-way catching slot 222 of the catch 220 of the movable catch 200 is engaged with the one-way catching tooth 141 of the inner locking lug 140 of the holder 100, so that the movable catch 200 is engaged with the holder 100.

Then, the tray 300 is rotated in a second direction opposite to the first direction, for example, counterclockwise, for example, clockwise, at this time, since the movable buckle 200 is engaged with the fixed base 100, the one-way buckle slot 231 on the lug 230 on the movable buckle 200 is disengaged from the elastic one-way buckle tooth 360 on the tray 300, when the tray 300 is rotated in the second direction opposite to the first direction, for example, counterclockwise, for example, clockwise, the movable buckle 200 does not follow the tray 300 to rotate in the second direction, for example, clockwise, and in addition, since the elastic hook 152 on the elastic one-way buckle tooth 150 on the fixed base 100 is guided by the guide rail 380 on the tray 300 to disengage from the path of the corresponding one-way buckle tooth 370 on the tray 300, the corresponding one-way buckle tooth 370 on the tray 300 does not touch the elastic hook 152 on the elastic one-way buckle tooth 150 on the fixed base 100 when the tray 300 is rotated in the second direction.

When the tray 300 is rotated in a second direction, for example, clockwise, until the unlocking notch 390 of the tray 300 is aligned with the position of the external locking lug 130 of the fixing base 100, since the movable catch 200 is engaged with the fixing base 100 and cannot be axially separated, the tray 300 and the movable catch 200 cannot be unlocked from the fixing base 100, and the tray 300 and the fixing base 100 can only float relatively in the axial direction.

If the unlocking is needed, the tray 300 is pressed towards the fixing base 100 and the tray 300 continues to rotate towards a second direction, for example, clockwise, so that the outer locking lug 130 on the fixing base 100 is clamped into the second half locking groove 333 in the other locking groove 300 on the tray 300, when the outer locking lug 130 on the fixing base 100 stops rotating after contacting the limiting block 331 in the other locking groove 300, the one-way catch groove 232 on the lug 230 of the movable buckle 200 and the elastic one-way catch tooth 360 on the tray 300 are engaged with each other again, and the one-way catch groove 222 on the lug 220 of the movable buckle 200 and the one-way catch tooth 141 on the inner locking lug 140 on the fixing base 100 are disengaged.

Since the movable buckle 200 is engaged with the tray 300 again and disengaged from the fixing base 100, at this time, the tray 300 is rotated in a first direction, for example, in a counterclockwise direction, the tray 300 can simultaneously drive the movable buckle 200 to rotate in the first direction, for example, in the counterclockwise direction, until the tray 300 rotates in the first direction, for example, in the counterclockwise direction until the unlocking notch 390 on the tray 300 aligns with the outer locking lug 130 on the fixing base 100, the tray 300 can be unlocked from the fixing base 100, and meanwhile, the engaging lug 220 on the movable buckle 200 can also be separated from the inner locking lug 140 on the fixing base 100 in the radial direction, so that the tray 300 and the movable buckle 200 can be detached from the fixing base 100 together.

Claims (9)

1. The mounting structure of the ceiling type equipment is characterized by comprising a fixed seat, a movable buckle and a tray, wherein the fixed seat is fixed on the fixed seat on the ceiling or the wall top wall, the tray is used for mounting the ceiling type equipment, the fixed seat, the movable buckle and the tray are rotatably assembled together, and the tray is rotated in different directions and different angles to realize the locking and unlocking between the tray and the movable buckle and the fixed seat together with the tray and the movable buckle;

the fixed seat is provided with an outer circumference and an inner circular hole, the outer circumference of the fixed seat is provided with at least one outer locking lug protruding outwards in the radial direction, the hole edge of the inner circular hole of the fixed seat is provided with at least one inner locking lug protruding inwards in the radial direction, and the inner locking lug is provided with a first one-way buckle tooth protruding in the axial direction; at least one first elastic unidirectional buckle tooth is circumferentially arranged on the fixed seat;

the movable buckle comprises a cylinder, at least one first clamping lug which is arranged on the peripheral surface of the first end of the cylinder and extends out in the radial direction, and at least one second clamping lug which is arranged on the peripheral surface of the second end of the cylinder and extends out in the radial direction, wherein the first clamping lug and the second clamping lug are staggered in the circumferential direction, a first one-way buckle groove is arranged on one axial end surface of the first clamping lug, and a second one-way buckle groove is arranged on one axial end surface of the second clamping lug;

the tray is provided with an outer circumference and an inner circular hole, at least one locking groove and at least one unlocking notch are arranged on the axial end face of the outer circumference of the tray facing to the side of the fixed seat, a limiting block is arranged in the middle of each locking groove, each locking groove is divided into a first half locking groove and a second half locking groove by the limiting block, and the unlocking notch is arranged between the first half locking groove and the second half locking groove in the two adjacent locking grooves; a movable buckle positioning cylinder axially extending towards the direction of the fixed seat is arranged on the hole edge of the inner circular hole of the tray, at least one elastic movable clamping hook protruding in the radial direction is arranged on the outer cylinder wall of one end, away from the inner circular hole of the tray, of the movable buckle positioning cylinder, and at least one second elastic unidirectional buckle tooth protruding in the axial direction is arranged on the axial end face of one side, facing the fixed seat, of the tray; and at least one second one-way buckle tooth and at least one guide rail are also arranged on the axial end surface of the side, facing the fixed seat, of the tray.

2. The mounting structure of the ceiling type device according to claim 1, wherein the first resilient one-way latch has a circumference between an outer circumference of the fixing base and a rim of the inner circular hole.

3. The ceiling type equipment mounting structure according to claim 2, wherein the first elastic one-way latch is composed of an elastic thin wall and an elastic hook at the end of the elastic thin wall, and the starting end of the elastic thin wall of the elastic one-way latch is connected with the fixed base.

4. The mounting structure of the ceiling type device according to claim 1, wherein the second elastic one-way catching teeth are formed in a circumferential diameter larger than an outer diameter of the movable catching positioning cylinder.

5. The mounting structure of ceiling type device according to claim 4, wherein a slit is opened on the fixing seat at both sides of the second elastic unidirectional button.

6. The mounting structure of the ceiling type device according to claim 1, wherein the second one-way locking tooth is formed at a circumferential diameter larger than that of the second elastic one-way locking tooth but smaller than that of the inner edge of the locking groove.

7. The mounting structure of ceiling type device according to claim 1, wherein a slit is formed on the movable catch positioning cylinder at both sides of the elastic movable catch.

8. The mounting structure of the ceiling type apparatus according to claim 1, wherein the guide rail is closer to an axial end surface of the tray on a side facing the holder than the second one-way catching teeth.

9. A method for assembling and disassembling the mounting structure of ceiling-mounted device as claimed in claim 1, wherein during the assembling process, the movable clip is first put on the movable clip positioning cylinder of the tray, during the assembling process, the cylinder of the movable clip forces the elastic movable hook of the movable clip positioning cylinder to contract radially inward, after the first end of the cylinder of the whole movable clip passes over the elastic movable hook of the movable clip positioning cylinder, the elastic movable hook of the movable clip positioning cylinder is restored outward under the effect of the elastic force, so that the elastic movable hook of the movable clip positioning cylinder is hooked on the first end face of the cylinder of the movable clip, and then the movable clip is rotated to engage the second one-way catching groove of the second engaging lug of the movable clip with the second elastic one-way catching tooth of the tray, the movable buckle can only rotate towards one direction on the tray and can not rotate towards the direction opposite to the direction;

after the movable buckle and the tray are assembled, the tray and the movable buckle are installed on the fixed seat and locked, and the specific process is as follows:

aligning the unlocking notch on the tray with the outer locking lug on the fixed seat and pushing the tray towards the fixed seat to enable the outer locking lug on the fixed seat to fall into the unlocking notch on the tray, then the tray is rotated towards the first direction and drives the movable buckle to rotate towards the first direction together, so that the outer locking lug on the fixed seat is clamped into the first half locking groove in one locking groove on the tray, until the first elastic unidirectional buckle tooth on the fixed seat is guided by the guide rail on the tray to hook the corresponding second unidirectional buckle tooth on the tray to lock the fixed seat, the tray and the movable buckle, after the fixed seat is locked with the tray and the movable buckle, the tray and the movable buckle can only continue to rotate towards a first direction and cannot rotate towards a second direction opposite to the first direction;

when the tray needs to be disassembled, the tray needs to be unlocked firstly, and the specific unlocking process is as follows:

the tray and the movable buckle continue to rotate towards the first direction, so that the first elastic unidirectional buckle tooth on the fixed seat is disengaged from the second unidirectional buckle tooth corresponding to the tray, meanwhile, the first elastic unidirectional buckle tooth on the fixed seat is separated from the path of the corresponding second unidirectional buckle tooth on the tray under the guidance of the guide rail on the tray, so as to ensure that the corresponding second unidirectional buckle tooth on the tray can not touch the first elastic unidirectional buckle tooth on the fixed seat when rotating towards the second direction, when the outer locking lug on the fixed seat touches a limiting block in a locking groove and stops rotating, at the moment, a first one-way buckle groove on a first clamping lug on the movable buckle is mutually meshed with a first one-way buckle tooth on an inner locking lug of the fixed seat, so that the movable buckle and the fixed seat are meshed together;

then the tray is rotated towards a second direction opposite to the first direction, at the moment, as the movable buckle is meshed with the fixed seat together, a second one-way buckle groove on a second clamping lug on the movable buckle is separated from meshing with a second elastic one-way buckle tooth on the tray, when the tray is rotated towards the second direction opposite to the first direction, the movable buckle does not rotate towards the second direction along with the tray, in addition, as a first elastic one-way buckle tooth on the fixed seat is separated from a path where a corresponding second one-way buckle tooth on the tray under the guidance of a guide rail on the tray, the corresponding second one-way buckle tooth on the tray does not touch the first elastic one-way buckle tooth on the fixed seat when the tray is rotated towards the second direction;

when the tray rotates to the position that the unlocking notch on the tray is aligned with the outer locking lug of the fixed seat in the second direction, the tray and the movable buckle still cannot be unlocked with the fixed seat because the movable buckle and the fixed seat are meshed together and cannot be axially separated, and the tray and the fixed seat can only float relatively in the axial direction;

if the tray needs to be unlocked, the tray is pressed towards the direction of the fixed seat, and meanwhile, the tray continues to rotate towards a second direction, so that the outer locking lug on the fixed seat is clamped into a second half locking groove in another locking groove on the tray, when the outer locking lug on the fixed seat stops rotating after contacting a limiting block in another locking groove, at the moment, a second one-way buckle groove on a second lug of the movable buckle is meshed with a second elastic one-way buckle tooth on the tray again, and meanwhile, a one-way buckle groove on a first lug of the movable buckle is separated from a first one-way buckle tooth on an inner locking lug on the fixed seat;

the tray can synchronously drive the movable buckle to rotate towards the first direction at the moment, the tray can be unlocked from the fixed seat until the tray rotates towards the first direction to the position that the unlocking notch on the tray is aligned with the outer locking lug on the fixed seat, and meanwhile, the first clamping lug on the movable buckle can be separated from the inner locking lug on the fixed seat in the radial direction, so that the tray and the movable buckle can be detached from the fixed seat together.

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