KR200372250Y1 - Inside lattice automatically ascent and descent descent diffuser for done air conditioning - Google Patents

Abstract

The present invention relates to an air conditioning diffuser installed on the ceiling of a building to allow air conditioning and air to diffuse into the room. More specifically, an internal grid that diffuses air conditioning and air can be automatically raised and lowered according to a change in room temperature. The present invention relates to an air conditioner diffuser capable of automatically raising and lowering the damper and improving damper operation. The body frame member 10 having an air inlet part 11 and an air diffusion part 12 is provided. ), The inner lattice 20 installed in the air diffusion unit 12, and the center hole 42a and the long hole 42b and the protrusion above the damper support member 41 fixed to the air inlet 11. Temperature of cooling and heating air in which the plurality of damper members 42 having 42c have a damper means 40 which are deployed and folded in an interlocked manner and the inner grid 20 is supplied to the air inlet 11. Automatically by So as to; It is installed to be fastened with the rotating member 110 installed to rotate around the grid fixing member 26 of the inner grid 20, and has an opening groove 122 on both sides of the central hole 121, the opening groove 122 in the upper portion A lifting member 120 to which the shielding ring member 124 is fastened to shield it; An elastic member (130) inserted into the central hole (121) to impart elasticity to move the internal grid (20) downward; The locking rod 196 is installed to the damper member 42 installed above the damper support member 41, and the operating rod 191 is expanded by the expansion of the wax 194 in which the volume expands and contracts according to an external heat change. Includes a known temperature sensor cylinder 190 to which is advanced; A floating support member 140 having a spiral hole 142 to which the fastening screw unit 192 of the temperature sensor cylinder 190 is fastened and an exposure hole 141 formed to extend in a vertical direction on both sides thereof; A vertical movement member 180 installed to move under the spiral hole 142 of the floating support member 140 and to which an operation rod 191 of the temperature sensor cylinder 190 is connected; A pair having a long hole 152 connected to the connecting pin 170 at the lower end of the vertical movable member 180 and having a pressure front end 151 rotated about the hinge shaft 160 inside the floating support member 140. The lever of the lever member 150, but the pressing end portion 151 of the lever member 150 is installed so as to press the lower end of the shielding ring member 124 fastened to the elevating member 120 in the upward direction The inner grid 20 including the falling member 120 is made to be moved to be raised.

Description

Inside lattice automatically ascent and descent descent diffuser for done air conditioning}

The present invention relates to an air conditioning diffuser installed in the ceiling of a building to allow air conditioning and air to diffuse into the room, and more specifically, an internal grid for diffusing air conditioning and air can be automatically raised and lowered according to a change in room temperature. The present invention relates to an air-conditioning diffuser that automatically raises and lowers the damper and is capable of operating the damper.

In general, the air conditioning diffuser installed on the indoor ceiling of a building is composed of a main body frame member fixed to the ceiling and acting as a duct and an internal grid installed inside the main body frame member to diffuse cooling and heating air.

Diffusers having such a basic skeleton have been disclosed to raise or lower the inner lattice so that the direction in which air is diffused is diffused laterally (ceiling direction) or downwardly.

However, since the internal lattice elevating system disclosed in the prior art is to operate the internal lattice manually to move up and down, for example, the high latitude is required because the internal lattice of many diffusers must be manually operated every summer during cooling or during winter heating. Buildings require a great deal of labor and are very cumbersome.

Accordingly, a system is disclosed in which the internal lattice is automatically raised and lowered in accordance with the change of the room temperature.

In the prior art, there are US Patent No. 4,523,713 and Patent No. 5,647,532, Korean Utility Model Publication No. 1998-0027711 and Korean Patent Publication No. 10-2004-0019701.

However, US Patent No. 4,523,713 has a disadvantage in that the structure is very complicated and does not have economic feasibility, US Patent No. 5,647,532 has a problem that is not strong because the force to raise and lower the internal grid is to be transmitted through the torsion spring.

In addition, the Korean Utility Model Publication No. 1998-0027711 and the Korean Patent Publication No. 10-2004-0019701 allow the internal lattice to be lowered only by relying on the elasticity of the temperature sensor cylinder and the spring. The weakness of the force caused a problem such as not being employed in large and large sized diffusers.

In particular, the prior art diffuser is difficult or very difficult to install a control means for manipulating the damper device that controls the amount of air supplied to the room, although the internal grid can be raised and lowered automatically, but the damper There is an inherent disadvantage of not being able to adjust the device.

The present invention can operate the internal lattice with the increased force compared to the reciprocating stroke length and the force of the cylinder rod of the temperature sensor cylinder, and can further increase the length of the inner lattice raising and lowering, regardless of the size of the diffuser. An object of the present invention is to provide an air conditioner diffuser capable of automatically raising and lowering an internal lattice efficiently in response to a temperature change of cooling and heating air supplied to a room.

Another object of the present invention is to provide a diffuser that can operate a damper means for controlling the amount of cooling and heating air supplied to the room through the diffuser by using an internal grid lifting means for automatically raising and lowering the internal grid. .

The present invention for achieving the above object, the main body frame member having an air inlet and the air diffusion, the internal lattice installed in the air diffusion, and the damper support member fixed to the air inlet, the center hole and the long hole And a damper means in which a plurality of damper members having protrusions are deployed and folded in cooperation with each other so that the inner lattice is automatically raised and lowered by the temperature of cooling and heating air supplied to the air inlet. An elevating member which is installed to be engaged with a rotating member which is rotated about the lattice fixing member of the inner lattice, and which has an opening groove on both sides of the central hole and a shielding ring member for fastening the opening groove on the upper part; An elastic member inserted into the central hole to give elasticity to move the internal lattice downward; A well-known temperature sensor cylinder which is installed to be engaged with a damper member installed above the damper support member, and whose working rod is advanced by expansion of wax whose volume expands and contracts according to an external heat change; A floating support member having a spiral hole to which the fastening screw portion of the temperature sensor cylinder is fastened and an exposure hole extending in a vertical direction on both sides thereof; A vertical moving member installed to move under the spiral hole of the floating support member and connected to an operating rod of a temperature sensor cylinder; A shield having a long hole connected to the lower end of the vertical moving member by a connecting pin and having a pair of lever members having a pressure tip portion rotated about a hinge axis in the floating support member, wherein the pressure tip portion of the lever member is fastened to the lifting member. The lower end of the ring member is installed so as to press the upper direction characterized in that the inner lattice including the lifting member is made to be moved up.

The floating support member may further include a center guide member having a center guide hole into which the upper portion of the floating support member is inserted and a fixing piece fixed to the body frame member to enable stable rotation at the center of the air inlet.

A guide means which is formed on a vertical guide member having a guide protrusion and a locking piece and a support piece member having a guide groove portion into which the guide protrusion is inserted, the vertical guide member standing on the outer periphery of the inner lattice and having a guide protrusion and a locking piece; It is another feature that the inner grid is configured to move up and down in the vertical direction while maintaining a horizontal by.

Floating support is provided in the square shaft hole of the damper operation knob which is provided in the temperature sensor cylinder and the rectangular shaft part inserted into the rectangular center hole of the damper member located at the top among the plurality of damper members of the damper means. Another feature is that a plurality of damper members are developed or folded by an operation of rotating the damper manipulation knobs so that the rectangular shaft portion extended to the lower end of the member is fitted.

1 is an overall cross-sectional view of the diffuser in which the present invention is carried out,

2 is an enlarged cross-sectional view of the internal lattice according to the present invention,

3 is a cross-sectional view taken along line X-X 'of FIG.

Figure 4a is an enlarged cross-sectional view of the guide means implemented in the present invention,

Figure 4b is a plan sectional view of the guide means of the present invention,

5 is an exploded perspective view of the lattice lowering means of the present invention;

Figure 6 is a partially cut perspective view of the floating support member and the lever member of the present invention,

7 is an exploded perspective view illustrating the damper means of the present invention;

8 is a plan view for explaining the operation of the damper means of the present invention,

9 is an enlarged cross-sectional view of the assembling lifting means of the present invention;

FIG. 10 is an overall configuration diagram of a diffuser cross-sectional view taken along the line Y-Y 'of FIG. 9;

11 is a cross-sectional view illustrating the operation of the cooling air supplied to the diffuser of the present invention,

12 is a cross-sectional view illustrating the operation of the heating air is supplied to the diffuser of the present invention,

13 is an overall cross-sectional view showing another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: body frame member 20: internal grid

26 lattice fixing member 30 guide means

40: damper means 50: damper operation knob

100: grid lowering means 110: rotating member

120: lifting member 130: elastic member

140: floating support member 160: hinge shaft

170: connecting pin 180: vertical moving member

190: temperature sensor cylinder 200: center guide member

When the present invention is described in more detail based on the accompanying preferred embodiments as follows.

Figure 1 shows the overall cross-sectional view of the subject innovation, the main subject frame member 10 which is fixed to the ceiling member (k) in the state having the air inlet portion 11 and the air diffusion portion 12 is largely divided In addition, the internal grid 20 is installed to be located in the air diffusion unit 12 and serves to guide cooling and heating air into the room, and the internal grid 20 is supported in the air diffusion unit 12. The guide means 30 to act as a guide when the ascending and descending, and the lattice raising and lowering means for automatically raising and lowering the internal grid 20 in accordance with the temperature change in the up and down directions ( 100 and a plurality of known damper members 42 are rotated in the circumferential direction by using the grid raising and lowering means 100 to control damping means 40.

The air inlet 11 is connected to a duct member (d) for supplying cooling air or heating air.

2 and 3, the internal grid 20 is composed of first, second, third grids 21, 22, and 23 having different sizes and diameters.

Among the first, second and third grids 21, 22 and 23, the second and third grids 22 and 23 have a cross-shaped bracket 24 as shown in FIG. 3, and the bracket 24 and The second and third grids 22 and 23 are spot welded and fixed integrally.

Therefore, the lattice fixing member 26 is inserted into the hole 25 at the center of the bracket 24 of the second and third grids 22 and 23 so as to be welded and fixed, as shown in FIG. 2. It is to be fixed in a state in which the rotating member 110 is installed on the top.

The rotating member 110 has a locking jaw portion 111, and the locking jaw portion 111 is installed in a state of being caught by the separation preventing piece portion 26a of the grid fixing member 26.

That is, the rotating member 110 is installed so as to rotate around the grid fixing member 26 in a state in which it is installed on the inner lattice 20.

In addition, the first grid 21 is fixed to the grid fixing member 26 by coupling the first grid 21 to the lower portion of the grid fixing member 26 and then bending the caulking portion 26b to the outside.

Since the first, second, and third grids 21, 22, and 23 are integrally fixed to become one inner grid 20, the first, second, and third grids 21, 22, and 23 are not included in the present invention.

The guide means 30 has a plurality of vertical guide members 31 fixed to the inner grid 20 and a plurality of support piece members 34 are installed on the inner surface of the air inlet portion 11 of the body frame member 10. After the configuration is combined with each other.

On the outer periphery of the third lattice 23 of the inner lattice 20, a plurality (four) of vertical guide members 31 are spot welded and fixed at equal intervals.

The vertical guide member 31 is provided with a guide projection piece 32 on one side as shown in Figure 4a and is provided with a locking piece 33 on the top.

When the vertical guide member 31 is assembled, it is installed to be inserted into the support piece member 34 in which one end is spot welded to the inner surface of the air inlet portion 11 of the body frame member 10 as shown in FIG. 4B. At this time, the guide protrusion piece 32 is inserted into the guide groove 35 so that the inner lattice 20 can be moved up and down in the up and down direction while maintaining the horizontal.

5 and 6 are perspective views showing the lattice lifting means 100, Figures 7 and 8 show the damper means (40).

Referring to FIG. 5, the lattice elevating means 100 has a rotating member 110 installed to rotate about a lattice fixing member 26 fixed to the internal grid 20, as described above. The elevating member 120 is fastened to the member 110.

The elevating member 120 has a central hole 121 and the opening groove 122 in both sides. Reference numerals 112 and 123 denote threads for fastening parts.

In addition, at the same time having a resilient member 130 is inserted into the central hole 121 of the elevating member 120 is provided with a floating support member 140 to be inserted into the central hole 121.

The floating support member 140 has a long exposure hole 141 in the longitudinal direction on both sides, as shown in Figure 6, a pair of lever member 150 exposed to the pressure tip portion 151 by the exposure hole 141. ) Is pivotally installed around the hinge shaft 160 fixed to the floating support member 140.

In addition, the pair of lever members 150 is connected to the end of the vertical movement member 180 by a connecting pin 170 penetrating through the long hole 152 that is drilled at the rear end thereof.

The vertical movable member 180 is inserted into the upper spiral hole 142 of the floating support member 140 and is installed to be movable in the vertical direction. The vertical movable member 180 includes the upper end hole 181 of the vertical movable member 180. The operating rod 191 of the known temperature sensor cylinder 190 is inserted and configured to be fixed by the screw 182.

Reference numeral 190b denotes a snap ring fitted into the ring groove 190a above the fastening screw portion 192 of the temperature sensor cylinder 190, and reference numeral 144 denotes an upper end of the floating support member 140 and a center guide member described later. It shows a spacer installed to fill the space formed between the (200).

Again, referring to FIG. 5, the elongated hole 143 vertically formed on one side of the floating support member 140 is for fastening the screw 182, and the vertical movable member 180 is moved downward. When the state becomes a state, the screw 182 can be fastened through the hole 143.

On the other hand, after the floating support member 140 is inserted into the central hole 121 of the elevating member 120, the shielding ring member for shielding the upper portion of the opening groove 122 in the upper portion of the elevating member 120 ( 124 is fastened. Reference numerals 125 and 126 denote threads for fastening.

A long rectangular shaft portion 145 is provided below the floating support member 140, and the square shaft portion 145 is fitted into the square shaft hole 51 formed in the damper manipulation knob 50 during assembly.

The damper manipulation knob 50 penetrates through the center hole 26c of the grating fixing member 26 so that the locking jaw portion 52 is caught by the release preventing piece portion 26a so as not to be separated.

When the damper operation knob 50 is inserted into the center hole 26c, there are split grooves 53 on both sides, so that both sides of the damper operation knob 50 are fitted into the center hole 26c, and then the locking jaw portion 52 is the center hole 26c. When passing through the) is opened by its own elasticity to return to its original state, the locking jaw portion 52 is assembled to not fall down by being caught by the release preventing piece (26a).

Figure 7 shows the installation state of the center guide member 200 and the damper means 40 is installed in accordance with the present invention.

The center guide member 200 is installed to enable a stable rotation of the floating support member 140 in the center of the air inlet portion 11, the fixing piece 201 at both ends thereof, and the center guide hole 202 at the center portion. ) And screw through holes 203 on both sides thereof.

As shown in FIG. 10, the screw through hole 203 fixes the screw 146 when the fastening screw member 192 of the floating support member 140 and the temperature sensor cylinder 190 is fixed by the screw 146. It is to be fastened through the screw through hole (203).

Again, referring to FIG. 7, the fixing piece 201 is spot welded to the inner surface of the body frame member 10 at the air inlet portion 11 to be fixed.

The damper means 40 is installed above the center guide member 202.

The damper means 40 is a stopper piece (41a) protruding from both side portions and the damper support member 41 having a fixing piece (41b) is fixed to both ends, the fixing piece (41b) is the main frame Spot welding to the inner surface of the member 10 is fixed.

A plurality of damper members 42 are installed to overlap the damper support member 41.

The damper member 42 has a central hole 42a and a long hole 42b and protrusions 42c protruding downward, respectively, on the outer periphery thereof. The protrusion 42c of the damper member 42 located is installed to be inserted into the long hole 42b of the damper member 42 located below.

Meanwhile, a rectangular center hole 42'a is formed in the damper member 42 'positioned at the uppermost side of the plurality of damper members 42, and a temperature sensor is formed in the rectangular center hole 42'a. The rectangular shaft portion 193 of the cylinder 190 is assembled to be fitted, and the locking portion 196 is installed in such a state as to be caught on the damper member 42 '.

Therefore, when the temperature sensor cylinder 190 is rotated, the damper member 42 'positioned at the uppermost portion is rotated because the rectangular shaft portion 193 is fitted in the square-shaped central hole 42'a.

Further, since the protrusion 42c of the damper member 42 'is rotated in the circumferential direction, the protrusion 42c is caught and rotated at the inner end of the long hole 42b, so that the damper member 42 under the damper member 42' is rotated. ) And this action is also applied to the damper members 42 at the bottom thereof, so that the plurality of damper members 42 are unfolded as shown in FIG. 8 to shield the air inlet 11. When the temperature sensor cylinder 190 is rotated in the opposite direction, the damper members 42 are folded in a state in which they are folded to open the air inlet 11 of the main frame member 10.

And the damper means 40 and the action is already known, the present invention can be said to be one feature to open and close the damper means 40 using the grid lifting means 100 and in more detail later It is explained.

Referring to FIG. 9, which shows the interior of the temperature sensor cylinder 190, the temperature sensor cylinder 190 includes a wax 194 material therein.

This wax 194 material is a thermally reactive material that expands when subjected to heat and contracts when taken away.

Accordingly, when the air passing through the air inlet 11 is hot air, the temperature sensor cylinder 190 receives heat, so that the wax 194 material is expanded and the operating rod 191 moves forward. do.

In addition, when the air passing through the air inlet 11 is cold cooling air, the temperature sensor cylinder 190 is cooled, so that the wax 194 material is shrunk, and the temperature sensor cylinder 190 itself is already known. will be. Reference numeral 195 denotes an O-ring for preventing leakage.

For reference, the wax 194 used in the present invention starts to receive heat and has a fully expanded state at 27 ° C., and at 17 ° C., a thermal reaction material having a completely shrunk state is used.

11 is a sectional view showing a state in which cooling air is supplied through the air inlet 11.

At this time, since the wax 194 of the temperature sensor cylinder 190 is in a contracted state, the operation rod 191 is in a state in which the force to be advanced is lost.

Therefore, the elevating member 120 is subjected to the pressing force of the lowering state by the elasticity of the elastic member 130, whereby the shielding ring member 124 is the pressing end portion 151 of the lever member 150 Since the vertical movement member 180 connected by the connecting pin 170 is moved upward because the pressure is downward, the operation rod 191 enters the temperature sensor cylinder 190.

As a result, when the wax 194 of the temperature sensor cylinder 190 is contracted by the cooling air, the internal grid 20 including the elevating member 120 is moved by the force (elasticity) of the elastic member 130. It is to be moved downward and the locking piece 33 of the vertical guide member 31 is caught by the support piece member 34 is to be stopped to move downward.

In addition, as the shielding ring member 124 coupled to the elevating member 120 is lowered, the pressing rod 151 of the lever member 150 is pressed downward, thereby operating rod 191 connected to the vertical moving member 180. Is entered into the temperature sensor cylinder 190 and will always maintain this state in the state that the cooling air is supplied to the room.

In this state, when the internal grid 20 is lowered, the cooling air is diffused laterally (also called a horizontal direction), and the cooling air diffused horizontally from the indoor ceiling is caused by convection in which cold air is diffused downward. The room is quickly cooled.

12 is a sectional view of a state in which heating air is supplied through the air inlet 11.

In this case, since the wax 194 of the temperature sensor cylinder 190 is expanded, the operation rod 191 is moved forward.

At this time, since the vertical moving member 180 connected to the operating rod 191 is in a descending state, the lever tip 150 is rotated around the hinge shaft 160 to thereby raise the pressing front end portion 151 upward.

Therefore, the pressing front end portion 151 presses the shielding ring member 124 upwards, and thus the lifting member 120 connected to the shielding ring member 124 is moved up, thereby raising and lowering the member 120. ) And the mutually extending inner lattice 20 including the rotating member 110 fastened to is moved upward.

When the internal grid 20 is moved upwardly, the heating air hits the straight portion 13 of the body frame member 10 to diffuse in the vertical direction.

Therefore, the hot air diffused toward the floor of the room can be heated quickly by the convection action from the bottom to the top.

On the other hand, when the inner grid 20 is raised and lowered by supplying the heating air, the elastic member 130 is compressed, and the compressed state is maintained while the heating air is supplied.

In the meantime, when the cooling air or the supply of the heating air is stopped and the indoor air is cold, the wax 194 of the temperature sensor cylinder 190 is contracted and the expansion force is lost. As shown in FIG. 11, the internal lattice 20 is moved downward.

Therefore, the internal grid 20 is automatically moved up and down by the temperature change of the cooling and heating air supplied to the air inlet part 11 so that the diffusion air flow of the air supplied to the room is automatically made. As a result, whenever the season changes, it has the convenience of not having to raise and lower the internal lattice by hand.

In addition, the present invention can adjust the supply amount of air flowing into the air inlet 11 by operating the damper means 40 while the raising and lowering of the inner grid 20 automatically.

That is, when the damper manipulation knob 50 is rotated in the left or right direction, since the square shaft portion 145 is fitted into the square shaft hole 51 of the damper manipulation handle 50, the floating support member 140 is rotated and fastened thereto. The temperature sensor cylinder 190 is rotated.

Accordingly, a plurality of damper members overlapping underneath as the uppermost damper member 42 'in which the quadrangular axis 193 of the temperature sensor cylinder 190 is also inserted into the rectangular center hole 42'a is rotated. The air inlet portion 11 is opened or shielded by the 42 being unfolded or deployed.

Since the opening and closing operations of the damper members 42 and 42 'of the damper means 40 have been described above, they will be omitted here.

On the other hand, when the floating support member 140 is rotated by rotating the damper operation knob 50, the pressure leading end portion 151 of the lever member 150 is caught in the exposure hole 141, so the lifting member 120 is lifted. Rotating member 110 is rotated to prevent the cause of the failure.

In addition, when the inner lattice 20 is moved up and down, the damper operation knob 50 is moved in the same way, the square shaft portion 145 of the floating support member 140 is the square shaft hole 51 of the damper operation knob 50. The damper operation knob 50 is smoothly moved up and down along the square shaft portion 145 because it is loosely fitted to the back cover.

In addition, since the floating support member 140 inserted into the center guide hole 202 of the center guide member 200 is also loosely fitted, the floating support member 140 is freely rotated.

As such, the present invention is characterized in that the damper means 40 can be developed or folded using the grid lifting means 100 in the raised or lowered state of the internal grid 20.

Figure 13 shows another embodiment of the present invention.

This embodiment shows an embodiment in which the above-mentioned damper means 40 is installed in the diffuser, and the floating support member 140 is fixed to the center guide member 200 by using a fixing means such as a bolt 204. And the damper manipulation knob 50 for rotating the damper means 40 and the square shaft portion 145 provided in the floating support member 140 are removed.

In this case, the internal lattice 20 moves up and down according to the temperature change of the cooling and heating air supplied to the air inlet 11.

The present invention allows the internal grid 20 to be raised and lowered using the temperature sensor cylinder 190 and the elastic member 130, but the squeezing force of the wax 194 of the temperature sensor cylinder 190 to the lever member 150 Since the internal grid 20 is raised by the increased force, it is possible to employ not only a small diffuser but also a very large diffuser.

According to the above description, the present invention can be operated reliably even by using a small temperature sensor cylinder, can be adopted regardless of the size of the diffuser, as well as the damper for adjusting the air supply quality And it is effective to be able to spread the product with excellent performance.

And since the present invention can be used by fixing the floating support member to the center guide member even in the diffuser without a damper means that it should be widely applied and protected without departing from the claims.

Claims (4)

The main body frame member 10 having an air inlet 11 and an air diffuser 12, an internal grid 20 installed in the air diffuser 12, and fixed to the air inlet 11. The interior of the damper support member 41 has a damper means (40) is a plurality of damper members 42 having a central hole (42a), a long hole (42b) and a projection (42c) is deployed and folded interlocking with each other. The grid 20 is to be automatically raised and lowered by the temperature of the cooling, heating air supplied to the air inlet (11); It is installed to be fastened with the rotating member 110 installed to rotate around the grid fixing member 26 of the inner grid 20, and has an opening groove 122 on both sides of the central hole 121, the opening groove 122 in the upper portion A lifting member 120 to which the shielding ring member 124 is fastened to shield it; An elastic member (130) inserted into the central hole (121) to impart elasticity to move the internal grid (20) downward; The locking rod 196 is installed to the damper member 42 installed above the damper support member 41, and the operating rod 191 is expanded by the expansion of the wax 194 in which the volume expands and contracts according to an external heat change. Includes a known temperature sensor cylinder 190 to which is advanced; A floating support member 140 having a spiral hole 142 to which the fastening screw unit 192 of the temperature sensor cylinder 190 is fastened and an exposure hole 141 formed to extend in a vertical direction on both sides thereof; A vertical movement member 180 installed to move under the spiral hole 142 of the floating support member 140 and to which an operation rod 191 of the temperature sensor cylinder 190 is connected; A pair having a long hole 152 connected to the connecting pin 170 at the lower end of the vertical movable member 180 and having a pressure front end 151 rotated about the hinge shaft 160 inside the floating support member 140. The lever of the lever member 150, but the pressing end portion 151 of the lever member 150 is installed so as to press the lower end of the shielding ring member 124 fastened to the elevating member 120 in the upward direction An air conditioning diffuser for automatically raising and lowering the inner lattice, characterized in that the inner lattice 20 including the lowering member 120 is made to move upward. According to claim 1, The floating support member 140 is the center guide hole 202 and the main body frame member is inserted into the upper portion of the floating support member 140 in order to enable a stable rotation in the center of the air inlet (11) ( 10. An air conditioning diffuser for automatically raising and lowering the internal lattice, characterized by further comprising a center guide member (200) having a fixed piece (201) fixed to it. According to claim 1, The vertical guide member 31 and the air inlet portion of the body frame member (10) standing on the outer periphery of the inner grating 20 and having a guide projection piece 32 and the locking piece 33 ( 11) the inner lattice 20 is vertically maintained by the guide means 30 formed on the inner surface and formed by the support piece member 34 having the guide groove portion 35 into which the guide protrusion piece 32 is inserted. An air conditioning diffuser for automatically raising and lowering the internal grid, characterized in that configured to move up and down in the direction. 2. The rectangular tab shaft portion 193 fitted to the rectangular center hole 42'a of the damper member 42 'positioned at the top of the plurality of damper members 42 of the damper means 40. The square shaft portion 145 extended to the lower end of the floating support member 140 in the square shaft hole 51 of the damper manipulation handle 50 which is provided at the temperature sensor cylinder 190 and is fitted to the grid fixing member 26. The internal grid is automatically raised and lowered, characterized in that configured to be deployed or folded by a plurality of damper members 42 by the operation to rotate the damper operation knob (50) so as to fit.