Adjustable slot-shaped air diffuser

Abstract

The utility model discloses an adjustable slot-shaped air diffuser, which comprises a panel embedded on the surface of an installation plane, a plurality of guide blades are arranged on the inner wall of one end of the panel, the guide blades are rotatably connected with the panel through a rotating shaft, one end of the rotating shaft is connected with a driven gear, the inner wall of the panel is connected with a rack in a sliding manner, and the rack is connected with the panel in a sliding manner. A gas cavity is formed in the inner wall of the end, away from the guide vane, of the panel, an expansion cavity is formed in one side of the guide vane, and a connecting rod is slidably connected to the inner wall of the expansion cavity. Through the arrangement of the driven gear, the gas cavity, the expansion cavity, the pushing plate and the connecting rod, when an air conditioning system works, the temperature of airflow can cause the phenomenon that gas in the gas cavity expands with heat and contracts with cold, the gas pressure borne by the pushing plate is changed, the pushing plate moves in the expansion cavity with the assistance of the reset spring, the angle of the guide vane is changed, and therefore the air conditioning system works stably. And the automatic angle adjustment of the guide vane is realized by taking thermal expansion and cold contraction of gas as power.

Description

Technical Field

[0001] The utility model relates to the technical field of diffusers, in particular to an adjustable slot-shaped diffuser. Background Art

[0002] Diffusers are commonly used air outlets in air-conditioning systems. They have uniform dispersion characteristics and a simple and beautiful appearance. They can be made into square or rectangular shapes according to usage requirements. The air outlet direction can be divided into multi-directional flows to ensure uniform air flow distribution.

[0003] After searching, the Chinese patent publication number CN208968002U discloses an adjustable strip diffuser, which includes a diffuser outer frame, wind blades arranged in the diffuser outer frame, and a wind blade adjustment component. The wind blade adjustment component is fixedly set at both ends of the inner wall of the diffuser outer frame. The wind blade adjustment component is plugged into the wind blades. The wind blade adjustment component includes an adjustment seat, a ratchet installed on the adjustment seat, and a damping rod fixedly set on the adjustment seat and in contact with the ratchet. The ratchet includes a wind blade clip and a hollow. The wind blade clip is fixedly installed on the ratchet surface, and the ratchet is provided with symmetrically distributed hollows.

[0004] When the air conditioning system is working, in order to allow the air flow to better regulate the room temperature, the angle of the fan blades needs to be adjusted according to the air conditioning mode (cooling or heating). This patent requires manual adjustment of the fan blades during adjustment, which is less convenient to use. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an adjustable slot-shaped diffuser.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An adjustable slit-shaped diffuser comprises a panel embedded in a mounting plane surface, a plurality of guide vanes being provided on the inner wall at one end of the panel, the plurality of guide vanes being arranged in a straight line, the guide vanes being rotatably connected to the panel via a rotating shaft, a driven gear being connected to one end of the rotating shaft, a rack being slidably connected to the inner wall of the panel, the rack being transmission-engaged with the driven gear, a gas cavity being provided on the inner wall at one end of the panel away from the guide vanes, an expansion cavity being provided on one side of the guide vanes, the expansion cavity being communicated with the gas cavity, and a cross-section of the expansion cavity being smaller than that of the gas cavity, a connecting rod being slidably connected to the inner wall of the expansion cavity, the other end of the connecting rod being connected to the rack, and a reset spring being sleeved on the outer wall of the connecting rod.

[0008] As a further solution of the present invention: a heating wire is provided inside the guide vane, a conductive block is provided inside the panel, and a conductive contact is connected to the outer wall of the rotating shaft, and the conductive contact is in contact with the conductive block.

[0009] As a further solution of the present invention: the conductive block is connected to an external power source, and the conductive contact is connected to a heating wire.

[0010] As a further solution of the present invention: the panel and the mounting plane are fixed by a connecting component, the connecting component includes an insert block and a slot, the insert block is fixed at both ends of the outer wall of one side of the panel, the slot is opened on the outer wall of the mounting plane, and the insert block and the slot are limitedly slidably matched.

[0011] As a further solution of the present invention: a cavity is provided on the inner wall of the plug block, a connecting frame is slidably connected to the inner wall of the cavity, a groove is provided on the outer wall of the panel, an opening communicating with the cavity is provided at the bottom of the groove, and one end of the connecting frame is located inside the groove.

[0012] As a further solution of the present invention: the two ends of the inner wall of the cavity are slidably connected to limit blocks, the limit blocks are plugged into the side walls of the slot, one end of the limit block is provided with a slope, and the side wall of the limit block is connected to a limit spring connected to the cavity.

[0013] As a further solution of the present invention: both sides of one end of the connecting frame close to the bottom of the slot are connected with extrusion blocks, and the extrusion blocks are slidably matched with the inclined surfaces of the limiting blocks.

[0014] As a further solution of the present invention: an accommodating groove is provided at one end of the connecting frame close to the bottom of the slot, an inner wall of the accommodating groove is connected to a tension spring, and the other end of the tension spring is connected to the cavity.

[0015] Compared with the prior art, the present invention provides an adjustable slit diffuser with the following beneficial effects:

[0016] 1. The utility model is provided with a driven gear, a gas chamber, an expansion chamber, a push plate and a connecting rod. When the air conditioning system is working, the air flow will flow from one end of the panel to the guide vane. The temperature of the air flow will cause the gas in the gas chamber to expand and contract due to heat and cold, thereby changing the gas pressure on the push plate. With the assistance of a return spring, the push plate is moved in the expansion chamber, and the rack is driven to move linearly through the connecting rod. The engagement of the rack with the driven gear drives the rotating shaft to rotate, thereby changing the angle of the guide vane. The thermal expansion and contraction of the gas is used as power to realize automatic adjustment of the angle of the guide vane.

[0017] 2. The utility model is provided with a heating wire, a conductive block and a conductive contact. When the air-conditioning system is cooling, the convection of hot and cold air at the guide vane will cause condensation water to appear on the surface of the guide vane. At this time, the conductive contact contacts the conductive block, and the heating wire conducts electricity at a low voltage, emitting a certain amount of heat, causing the surface of the guide vane to heat up, thereby preventing condensation water from appearing on the surface of the guide vane.

[0018] 3. The utility model is provided with a connecting assembly, which facilitates the disassembly and assembly of the panel and the inspection and maintenance of the internal structure of the panel.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an adjustable slot-shaped diffuser proposed in the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the guide vanes and the panel of an adjustable slot-shaped diffuser proposed in the present invention;

[0022] Figure 3 This is a schematic diagram of the transmission structure of the gas chamber and rack of an adjustable slot-shaped diffuser proposed in the utility model;

[0023] Figure 4 This is a structural diagram of a conductive block and a conductive contact of an adjustable slot-shaped diffuser proposed in the utility model;

[0024] Figure 5 This is a structural schematic diagram of an adjustable slot-shaped diffuser connection assembly proposed in the utility model.

[0025] In the figure: 1. Mounting plane; 2. Panel; 3. Guide vane; 4. Rotating shaft; 5. Heating wire; 6. Driven gear; 7. Rack; 8. Gas chamber; 9. Expansion chamber; 10. Push plate; 11. Connecting rod; 12. Conductive block; 13. Conductive contact; 14. Groove; 15. Insert block; 16. Slot; 17. Cavity; 18. Connecting frame; 19. Limit block; 20. Extrusion block; 21. Tension spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] Example 1

[0029] An adjustable slot diffuser, such as Figures 1 to 4 As shown, it includes a panel 2 embedded in the surface of the mounting plane 1, and a plurality of guide blades 3 are provided on the inner wall at one end of the panel 2. The plurality of guide blades 3 are arranged in a straight line, and the guide blades 3 are rotatably connected to the panel 2 through a rotating shaft 4. A heating wire 5 is provided inside the guide blade 3, and one end of the rotating shaft 4 is connected to a driven gear 6. A rack 7 is slidably connected to the inner wall of the panel 2, and the rack 7 is in transmission engagement with the driven gear 6. When the rack 7 slides, the transmission drive shaft 4 of the rack 7 and the driven gear 6 rotates, and a conductive block 12 is provided inside the panel 2, and a conductive contact 13 is connected to the outer wall of the rotating shaft 4. The conductive contact 13 contacts and cooperates with the conductive block 12, and the conductive contact 13 is in contact with the conductive block 12. When it contacts the conductive block 12, it supplies power to the heating wire 5. The conductive block 12 is connected to an external power supply, and the conductive contact 13 is connected to the heating wire 5. A gas chamber 8 is provided on the inner wall of the panel 2 away from the guide vane 3, and an expansion chamber 9 is provided on one side of the guide vane 3. The expansion chamber 9 is filled with helium. The expansion chamber 9 is connected to the gas chamber 8, and the cross-section of the expansion chamber 9 is smaller than the gas chamber 8. A connecting rod 11 is slidably connected to the inner wall of the expansion chamber 9, and the other end of the connecting rod 11 is connected to the rack 7. A reset spring is provided on the outer wall of the connecting rod 11. A barrier net is fixed to the inner wall of the panel 2, and the thermal expansion and contraction of the helium in the expansion chamber 9 is used as the power source for driving the rack 7 to move.

[0030] When the air conditioning system is working, the air flow will flow from one end of the panel 2 to the guide vane 3. The temperature of the air flow will cause the gas in the gas chamber 8 to expand and contract due to heat and cold, changing the gas pressure on the push plate 10. This gas pressure acts on the push plate 10, causing the push plate 10 to move in the expansion chamber 9. At this time, the return spring is squeezed to generate a deformation force, which drives the rack 7 to move in a straight line through the connecting rod 11. The engagement of the rack 7 with the driven gear 6 drives the rotating shaft 4 to rotate, changing the angle of the guide vane 3. The thermal expansion and contraction of the gas is used as power to achieve automatic adjustment of the angle of the guide vane 3.

[0031] By providing the heating wire 5, the conductive block 12 and the conductive contact 13, when the air-conditioning system is cooling, the convection of hot and cold air at the guide vane 3 will cause condensation water to appear on the surface of the guide vane 3. At this time, the conductive contact 13 is in contact with the conductive block 12, and the heating wire 5 conducts electricity at a low voltage, emitting a certain amount of heat, causing the surface of the guide vane 3 to heat up, thereby preventing condensation water from appearing on the surface of the guide vane 3. The barrier net can prevent external insects from entering the air-conditioning system through the gaps between the guide vanes 3. When the air-conditioning system is heating, the gas in the gas chamber 8 contracts, the pressure on the push plate 10 becomes weaker, the reset spring expands, and the push plate 10 moves upward along the expansion chamber 9. The rack 7 drives the driven gear 6 to reverse, so that the rotating shaft 4 drives the conductive contact 13 to disengage from the conductive block 12, and the heating wire 5 is powered off.

[0032] Example 2

[0033] An adjustable slot diffuser, based on Example 1, this embodiment makes the following improvements: Figure 5 As shown, the panel 2 is fixed to the mounting plane 1 by a connecting component, and the connecting component includes an insert 15 and a slot 16. The insert 15 is fixed to both ends of the outer wall of one side of the panel 2, and the slot 16 is opened on the outer wall of the mounting plane 1. The insert 15 and the slot 16 are limited and slidably matched. The insert 15 and the slot 16 cooperate to initially limit the position of the panel 2 and the mounting plane 1. A cavity 17 is provided on the inner wall of the insert 15, and a connecting frame 18 is slidably connected to the inner wall of the cavity 17. A groove 14 is provided on the outer wall of the panel 2, and an opening communicating with the cavity 17 is provided at the bottom of the groove 14. One end of the connecting frame 18 is located inside the groove 14, and the connecting frame 18 can be pulled to slide along the groove 14, serving as a power source for driving the limit block 19. The sliding movement of the two ends of the inner wall of the cavity 17 A dynamically connected limit block 19 is provided, and the limit block 19 is plugged into the side wall of the slot 16. One end of the limit block 19 is provided with a slope. The side wall of the limit block 19 is connected to a limit spring connected to the cavity 17. The limit block 19 is inserted into the side wall of the slot 16 to connect the panel 2 to the mounting plane 1. The end of the connecting frame 18 close to the bottom of the slot 16 is connected to extrusion blocks 20 on both sides. The extrusion block 20 slides with the slope of the limit block 19. The end of the connecting frame 18 close to the bottom of the slot 16 is provided with a receiving groove, and a tension spring 21 is connected to the inner wall thereof. The other end of the tension spring 21 is connected to the cavity 17. The extrusion block 20 converts the lateral movement of the connecting frame 18 into the longitudinal movement of the limit block 19. The tension spring 21 limits the position of the connecting frame 8 when no external force is applied.

[0034] When removing the panel 2, the connecting frame 18 is pulled outward, the tension spring 21 is stretched, the extrusion block 20 moves with the connecting frame 18, and the limit spring pushes the limit block 19 to move toward the connecting frame 18, so that the limit block 19 is disengaged from the side wall of the slot 16. At this time, the plug-in block 15 can be pulled out of the slot 16 and the panel 2 can be removed; when installing, the connecting frame 18 is pulled outward, the tension spring 21 is stretched, the extrusion block 20 moves with the connecting frame 18, the limit spring pushes the limit block 19 to move toward the connecting frame 18, the plug-in block 15 is inserted into the slot 16, the tension spring 21 pulls the connecting frame 18 to reset, and the extrusion block 20 squeezes the limit block 19, so that the limit block 19 is inserted into the side wall of the slot 16 to fix the panel 2.

[0035] The connection assembly is provided to facilitate assembly and disassembly of the panel 2 and to facilitate maintenance of the internal structure of the panel 2.

[0036] Working principle: When it is necessary to remove the panel 2, pull the connecting frame 18 outward, the tension spring 21 is stretched, the extrusion block 20 moves with the connecting frame 18, and the limit spring pushes the limit block 19 to move toward the connecting frame 18, so that the limit block 19 is disengaged from the side wall of the slot 16. At this time, the plug 15 can be pulled out of the slot 16 and the panel 2 can be removed; during installation, push the connecting frame 18 toward the bottom of the slot 16, and the extrusion block 20 moves along the inclined surface of the limit block 19 with the movement of the connecting frame 18, gradually squeezing the limit block 19, so that the two limit blocks 19 move away from each other, causing the limit spring to compress. When the limit block 19 and the side wall of the slot 16 are engaged, it indicates that the plug 15 has been stably inserted into the slot 16, and the installation operation of the panel 2 is completed.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable slot diffuser, comprising a panel (2) embedded in a mounting plane (1), characterized in that: The inner wall of one end of the panel (2) is provided with a plurality of guide blades (3), and the plurality of guide blades (3) are arranged in a straight line. The guide blades (3) are rotatably connected to the panel (2) through a rotating shaft (4). One end of the rotating shaft (4) is connected to a driven gear (6). The inner wall of the panel (2) is slidably connected to a rack (7), and the rack (7) is transmission-engaged with the driven gear (6). A gas cavity (8) is provided on the inner wall of the end of the panel (2) away from the guide blade (3). An expansion cavity (9) is provided on one side of the guide blade (3). The expansion cavity (9) is communicated with the gas cavity (8), and the cross section of the expansion cavity (9) is smaller than that of the gas cavity (8). The inner wall of the expansion cavity (9) is slidably connected to a connecting rod (11), and the other end of the connecting rod (11) is connected to the rack (7). The outer wall of the connecting rod (11) is sleeved with a reset spring.

2. The adjustable slot diffuser according to claim 1, characterized in that: A heating wire (5) is provided inside the guide vane (3), a conductive block (12) is provided inside the panel (2), and a conductive contact (13) is connected to the outer wall of the rotating shaft (4), and the conductive contact (13) is in contact with the conductive block (12).

3. The adjustable slot diffuser according to claim 2, characterized in that: The conductive block (12) is connected to an external power source, and the conductive contact (13) is connected to the heating wire (5).

4. The adjustable slot diffuser according to claim 1, characterized in that: The panel (2) and the mounting plane (1) are fixed via a connecting assembly, wherein the connecting assembly comprises an insert (15) and a slot (16), wherein the insert (15) is fixed to both ends of an outer wall of one side of the panel (2), and the slot (16) is opened on the outer wall of the mounting plane (1), and the insert (15) and the slot (16) are in limited sliding engagement.

5. The adjustable slot diffuser according to claim 4, characterized in that: The inner wall of the plug block (15) is provided with a cavity (17), the inner wall of the cavity (17) is slidably connected to a connecting frame (18), the outer wall of the panel (2) is provided with a groove (14), the bottom of the groove (14) is provided with an opening communicating with the cavity (17), and one end of the connecting frame (18) is located inside the groove (14).

6. The adjustable slot diffuser according to claim 5, characterized in that: The two ends of the inner wall of the cavity (17) are slidably connected to a limit block (19), the limit block (19) is plugged into the side wall of the slot (16), one end of the limit block (19) is provided with an inclined surface, and the side wall of the limit block (19) is connected to a limit spring connected to the cavity (17).

7. The adjustable slot diffuser according to claim 6, characterized in that: Extrusion blocks (20) are connected to both sides of one end of the connecting frame (18) close to the bottom of the slot (16), and the extrusion blocks (20) are slidably matched with the inclined surfaces of the limiting blocks (19).

8. The adjustable slot diffuser according to claim 7, characterized in that: An accommodating groove is provided at one end of the connecting frame (18) close to the bottom of the slot (16), and a tension spring (21) is connected to the inner wall of the connecting frame. The other end of the tension spring (21) is connected to the cavity (17).

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