A sound attenuating air duct

Abstract

The application discloses a sound-absorbing air duct and belongs to the technical field of ventilation ducts. The sound-absorbing air duct comprises an air pipe, the air pipe comprises a lower half body, an upper half body and two side seats, the lower half body is provided with two baffle I, the upper half body is provided with a baffle II, the two side seats are provided with insertion slots for inserting the lower half body and the upper half body, the lower half body and the upper half body are inserted into the insertion slots, the baffle II is located between the two baffle I, there is a space between the baffle I and the upper half body, and there is a space between the two baffle II and the lower half body. The air pipe is provided with a baffle along the center line of the channel, and the air pipe is provided with an adjusting mechanism. The baffle II and the two baffle I form a winding and zigzag channel in the air pipe, the noise is fully absorbed, and the complete air pipe is formed by combination. The shape of the baffle can be adjusted through the adjusting mechanism, the distance between the baffle and the baffle I and the two baffle II is changed, the ventilation area of the air pipe is changed, and the effect of changing the air volume is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ventilation duct, in particular to a sound-absorbing air duct. BACKGROUND

[0002] The sound-absorbing air duct is used to eliminate the sound of air flow, which is generally arranged at the indoor port of the ventilation duct. The existing sound-absorbing air duct has single function and cannot adjust the air flow, so a new sound-absorbing air duct is needed to solve the problem. SUMMARY

[0003] Other features and advantages of the present application will be set forth in the following specification, and in part will be apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and the drawings.

[0004] The purpose of the present application is to overcome the above-mentioned shortcomings, and to provide a sound-absorbing air duct.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is: a sound-absorbing air duct, comprising a duct, the duct comprising a lower half, an upper half and two side seats, the lower half having two baffle plates one, the upper half having one baffle plate two, two side seats being provided with a slot for inserting the lower half and the upper half, the lower half and the upper half being inserted into the slot, the baffle plate two being located between the two baffle plates one, the baffle plate two and the two baffle plates one having a spacing, the baffle plate one and the upper half having a spacing, the two baffle plates two and the lower half having a spacing, the duct being provided with a baffle along the center line of the channel, the duct being provided with an adjusting mechanism for adjusting the distance between the baffle and the baffle plate one and the baffle plate two.

[0006] By adopting the above technical scheme, the upper half and the lower half are combined with each other, the baffle plate two and the two baffle plates one form a winding and tortuous channel in the duct, thereby increasing the flow path of air and fully absorbing noise, the side seats on both sides are used to fix the positions of the upper half and the lower half and combine to form a complete duct, the shape of the baffle can be adjusted by the adjusting mechanism, so that the spacing between the baffle and the baffle plate one and the baffle plate two changes, thereby changing the ventilation area of the duct to change the air volume.

[0007] Preferably, the adjusting mechanism comprises a guide roller and a movable roller, the baffle is supported by the guide roller and the movable roller, the guide roller is rotatably connected with the side seat, the movable roller is provided with six, two of the movable rollers are arranged on the two sides of the baffle two and the two baffle one, the six movable rollers are slidably connected with the side seat through a sliding groove, the side seat is provided with an elastic mechanism for providing elastic force for the movable roller, one side of the air pipe is provided with a winding mechanism for winding the baffle, and the other side of the air pipe is provided with a fixing mechanism for fixing the baffle. The baffle of the present application is made of soft plastic material, and can be wound by the winding mechanism. The baffle can be arranged along the center line of the air pipe channel through the guide roller and the movable roller. One end of the baffle is fixed by the fixing mechanism. When the winding mechanism winds the other end of the baffle, the baffle will compress the movable roller to overcome the elastic force of the elastic mechanism and move. At this time, the baffle will move in the direction close to the baffle one and the baffle two, so as to adjust the ventilation area. When the baffle is attached to the baffle one and the baffle two, the air pipe will be closed. When the baffle is unwound by the winding mechanism, the elastic mechanism will release the elastic force to tension the relaxed baffle, thereby increasing the air volume.

[0008] Preferably, the elastic mechanism comprises a support, an elastic member and a housing, the housing is fixedly connected with the side seat, the support is slidably connected with the housing, the support is fixedly connected with the movable roller, and the elastic member is arranged between the support and the housing. The elastic member arranged between the housing and the support can provide elastic force for the movable roller. When the movable roller slides, it can drive the support to slide, thereby pressing the elastic member to deform. When the baffle is relaxed, the elastic member releases the elastic force to push the movable roller to slide through the support.

[0009] Preferably, the winding mechanism comprises a support one, a winding roller and a servo motor, the winding roller is rotatably connected with the support one, one end of the baffle is fixedly connected with the winding roller, the servo motor is fixedly connected with the support one, the output shaft of the servo motor is in transmission connection with the winding roller, and the support one is fixedly connected with the side seat through a connecting mechanism. The servo motor can drive the winding roller to wind the baffle. The servo motor can be self-locked and can rotate at a certain angle according to the need, so as to finely adjust the air volume and keep the baffle in a certain state.

[0010] Preferably, the fixing mechanism comprises a bracket two and a pressing plate, both ends of the pressing plate are connected with the bracket two through bolts, the baffle is clamped between the pressing plate and the bracket two, and the bracket two is fixedly connected with the side seat through a connecting mechanism. The bolt can be used for pressing the pressing plate on the bracket two, the baffle is clamped between the pressing plate and the bracket two, the friction force can be used for fixing the baffle, the pressing plate and the bracket two are provided with protruding teeth at positions close to the baffle, and the protruding teeth can be embedded into the baffle to realize more firm fixing.

[0011] Preferably, the bracket one or the bracket two is provided with a connecting plate, the side seat is fixedly connected with a supporting plate, the connecting plate is provided with a fixing hole one, and the supporting plate is provided with a plurality of fixing hole twos. The bolt can be used for fixing the bracket one or the bracket two on the side seat through the fixing hole one and the fixing hole two, and the fixing hole two is provided with a plurality of fixing hole twos, so that the side seat can be cut according to distance requirements.

[0012] Preferably, the side seat is provided with a boss, and the insertion groove is arranged on the boss. The concave groove does not weaken the strength of the side plate through the design.

[0013] Preferably, a sealing block is arranged between each group of the two adjacent closest movable rollers, the sealing block is provided with an embedding groove for embedding the baffle one or the baffle two, and both ends of the sealing block are fixedly connected with the two movable rollers through elastic sheets. The sealing block can be pressed on the baffle one or the baffle two through the elastic sheets on both sides under the driving of the movable rollers, so that the sealing block is not blocked by the boss when the air pipe is closed.

[0014] Preferably, the side seat is fixedly connected with a blocking shell for sealing the sliding groove. The blocking shell is used for sealing the sliding groove, so that air leakage is avoided.

[0015] Preferably, both ends of the upper half and the lower half are provided with a plurality of cutting grooves. The cutting grooves can be used for conveniently cutting and adjusting the width of the upper half and the lower half, the interval between two adjacent cutting grooves is equal, and corresponds to one scale. According to requirements, one cutting groove is cut, and the upper half or the lower half with a required width can be obtained.

[0016] In conclusion, the beneficial effects of the present application are as follows:

[0017] 1. The upper half and the lower half are combined to form a curved air duct, so that noise generated when air flows is eliminated.

[0018] 2. The adjusting mechanism is used for changing the interval between the baffle and the baffle one and the baffle two, so as to change the flow.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] It will become readily apparent to those skilled in this art that other

[0021] So that the manner in which the above and other objects, advantages and features of the disclosure can be understood in detail, a BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in

[0023] In the drawings, like reference numerals refer to same components, and the drawings are schematic and are not necessarily drawn to scale.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 Overall structure schematic diagram after removing one side seat;

[0026] Figure 2 Overall structure schematic diagram after cutting the blocking shell in half;

[0027] Figure 3 Structure schematic diagram of the elastic mechanism.

[0028] Main drawing reference numerals: 1, upper half; 2, lower half; 3, side seat; 4, baffle one; 5, baffle two; 6, baffle piece; 7, guide roller; 8, movable roller; 9, sliding slot; 10, support piece; 11, elastic piece; 12, shell; 13, support one; 14, winding roller; 15, servo motor; 16, support two; 17, pressing plate; 18, connecting plate; 19, support plate; 20, fixed hole one; 21, fixed hole two; 22, boss; 23, sealing block; 24, elastic piece; 25, blocking shell; 26, cutting groove. DETAILED DESCRIPTION

[0029] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the specific embodiments. It should be understood that the specific embodiments described herein are merely intended to interpret the present application but not to limit the present application.

[0030] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. However, it is noted that direct connection means that the connection between the two main bodies does not form a connection relationship through a transition structure, but is connected only through a connection structure to form a whole. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0033] As Figures 1-2As shown, a sound-attenuating air duct includes an air pipe, the air pipe includes a lower half 2, an upper half 1 and two side seats 3, the lower half 2 has two baffle plates one 4, the upper half 1 has a baffle plate two 5, the two side seats 3 are provided with insertion slots for inserting the lower half 2 and the upper half 1, the lower half 2 and the upper half 1 are inserted into the insertion slots, the baffle plate two 5 is located between the two baffle plates one 4, and the baffle plate two 5 and the two baffle plates one 4 are both provided with a gap, the baffle plate one 4 and the upper half 1 are provided with a gap, and the two baffle plate two 5 and the lower half 2 are both provided with a gap, the air pipe is provided with a baffle 6 along the center line of the channel, and the air pipe is provided with an adjusting mechanism for adjusting the distance between the baffle 6 and the baffle plate one 4 and the baffle plate two 5.

[0034] By adopting the above technical scheme, the mutual combination between the upper half 1 and the lower half 2 is utilized, the baffle plate two 5 and the two baffle plates one 4 are used to form a winding channel in the air pipe, thereby increasing the flow path of air and fully absorbing noise, the side seats 3 on both sides are used to fix the positions of the upper half 1 and the lower half 2 and combine to form a complete air pipe, the shape of the baffle 6 can be adjusted by the adjusting mechanism, so that the distance between the baffle 6 and the baffle plate one 4 and the two baffle plate two 5 changes, thereby changing the ventilation area of the air pipe to change the air volume.

[0035] The adjusting mechanism includes a guide roller 7 and a movable roller 8, the baffle 6 is supported by the guide roller 7 and the movable roller 8, the guide roller 7 is rotatably connected with the side seat 3, the movable roller 8 is provided with six, two movable rollers 8 are arranged on both sides of the baffle plate two 5 and the two baffle plates one 4, the six movable rollers 8 are all slidably connected with the side seat 3 through a sliding groove 9, the side seat 3 is provided with an elastic mechanism for providing elastic force for the movable roller 8, one side of the air pipe is provided with a winding mechanism for winding the baffle 6, and the other side of the air pipe is provided with a fixing mechanism for fixing the baffle 6. The baffle 6 is made of soft plastic material, the baffle 6 can be wound by the winding mechanism, the baffle 6 can be arranged along the center line of the air pipe channel by the guide roller 7 and the movable roller 8, one end of the baffle 6 is fixed by the fixing mechanism, when the winding mechanism winds the other end of the baffle 6, the baffle 6 will compress the movable roller 8 to overcome the elastic force of the elastic mechanism to move, at this time, the baffle 6 will move in the direction close to the baffle plate one 4 and the baffle plate two 5, to adjust the ventilation area, when the baffle 6 is attached to the baffle plate one 4 and the baffle plate two 5, the air pipe will be closed, when the baffle 6 is unwound by the winding mechanism, the elastic mechanism will release the elastic force to tension the relaxed baffle 6 again, and the air volume is increased.

[0036] The elastic mechanism comprises a support 10, an elastic member 11 and a housing 12, the housing 12 is fixedly connected with the side seat 3, the support 10 is slidably connected with the housing 12, the support 10 is fixedly connected with the movable roller 8, and the elastic member 11 is arranged between the support 10 and the housing 12. By means of the elastic member 11 arranged between the housing 12 and the support 10, elastic force can be provided for the movable roller 8, the movable roller 8 can drive the support 10 to slide when sliding, so that the elastic member 11 is pressed to deform, the elastic member 11 releases the elastic force when the baffle 6 is relaxed, and the movable roller 8 is pushed to slide through the support frame.

[0037] The winding mechanism comprises a support 13, a winding roller 14 and a servo motor 15, the winding roller 14 is rotatably connected with the support 13, one end of the baffle 6 is fixedly connected with the winding roller 14, the servo motor 15 is fixedly connected with the support 13, an output shaft of the servo motor 15 is in transmission connection with the winding roller 14, and the support 13 is fixedly connected with the side seat 3 through a connecting mechanism. By means of the servo motor 15, the baffle 6 can be wound by the winding roller 14, the servo motor 15 can be self-locked and can rotate by a certain angle as required, so that the air volume can be finely adjusted and the baffle 6 can be kept in a certain state.

[0038] The fixing mechanism comprises a support 16 and a pressing plate 17, both ends of the pressing plate 17 are connected with the support 16 through bolts, the baffle 6 is clamped between the pressing plate and the support 16, and the support 16 is fixedly connected with the side seat 3 through a connecting mechanism. By means of the bolts, the pressing plate 17 can be pressed on the support 16, the baffle 6 can be fixed by friction force by being clamped between the pressing plate 17 and the support 16, and the positions, where the pressing plate 17 and the support 16 are attached to the baffle 6, are provided with convex teeth, the convex teeth can be embedded into the baffle 6 to achieve more firm fixing.

[0039] The support 13 or the support 16 is provided with a connecting plate 18, the side seat 3 is fixedly connected with a supporting plate 19, the connecting plate 18 is provided with a fixed hole 20, and the supporting plate 19 is provided with a plurality of fixed holes 21. By penetrating the fixed hole 20 and the fixed hole 21 with a bolt, the support 13 or the support 16 can be fixed on the side seat 3, and a plurality of fixed holes 21 are arranged, so that the side seat 3 can be cut according to distance requirements.

[0040] The side seat 3 is provided with a boss 22, and a slot is arranged on the boss 22. In this way, the groove does not weaken the strength of the side plate.

[0041] A sealing block 23 is arranged between each pair of adjacent closest movable rollers 8, and a slot is arranged on the sealing block 23 for the insertion of the baffle plate one 4 or the baffle plate two 5. The two ends of the sealing block 23 are fixedly connected to the two movable rollers 8 through elastic sheets 24. The sealing block 23 can be pressed on the baffle plate one 4 or the baffle plate two 5 through the elastic sheets 24 on both sides under the drive of the movable rollers 8, so that the sealing block 23 will not be blocked by the boss 22 when the air pipe is closed.

[0042] The side seat 3 is fixedly connected with a baffle shell 25 for sealing the chute 9. The baffle shell 25 is used to seal the chute 9, so as to avoid air leakage.

[0043] A plurality of cutting grooves 26 are arranged at the two ends of the upper half body 1 and the lower half body 2. The cutting grooves 26 can be used to conveniently cut and adjust the width of the upper half body 1 and the lower half body 2. The spacing between two adjacent cutting grooves 26 is equal, and corresponds to one scale. According to the need, one of the cutting grooves 26 is cut to obtain the upper half body 1 or the lower half body 2 with the required width.

[0044] It should be noted that in the foregoing description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those specifically described herein, and the scope of the present application is not limited to the specific embodiments disclosed above.

Claims

1. A sound-absorbing air duct, comprising an air pipe, characterized in that: The duct includes a lower half (2), an upper half (1), and two side seats (3). The lower half (2) has two baffles (4), and the upper half (1) has a baffle (5). The two side seats (3) are provided with slots for inserting the lower half (2) and the upper half (1). The lower half (2) and the upper half (1) are both inserted into the slots. The baffle (5) is located between the two baffles (4). There is a gap between the baffle (5) and the two baffles (4). There is a gap between the baffles (4) and the upper half (1). There is a gap between the baffles (5) and the lower half (2). A baffle (6) is provided along the center line of the duct. An adjustment mechanism is provided in the duct for adjusting the distance between the baffle (6) and the baffles (4) and the baffles (5). The adjustment mechanism includes a guide roller (7) and a movable roller (8). The baffle (6) is supported by the guide roller (7) and the movable roller (8). The guide roller (7) is rotatably connected to the side seat (3). There are six movable rollers (8). Two movable rollers (8) are provided on both sides of the second baffle (5) and the two first baffles (4). The six movable rollers (8) are slidably connected to the side seat (3) through the sliding groove (9). The side seat (3) is provided with an elastic mechanism for providing elastic force to the movable rollers (8). One side of the air duct is provided with a winding mechanism for winding the baffle (6), and the other side of the air duct is provided with a fixing mechanism for fixing the baffle (6). The elastic mechanism includes a support member (10), an elastic member (11), and a housing (12). The housing (12) is fixedly connected to the side seat (3), the support member (10) is slidably connected to the housing (12), the support member (10) is fixedly connected to the movable roller (8), and the elastic member (11) is disposed between the support member (10) and the housing (12). A sealing block (23) is provided between the two nearest adjacent movable rollers (8) in each group. The sealing block (23) is provided with a groove for the baffle one (4) or the baffle two (5) to be embedded. The two ends of the sealing block (23) are fixedly connected to the two movable rollers (8) by elastic sheets (24).

2. The sound-absorbing duct according to claim 1, characterized in that: The winding mechanism includes a support (13), a winding roller (14), and a servo motor (15). The winding roller (14) is rotatably connected to the support (13). One end of the baffle (6) is fixedly connected to the winding roller (14). The servo motor (15) is fixedly connected to the support (13). The output shaft of the servo motor (15) is drivenly connected to the winding roller (14). The support (13) is fixedly connected to the side seat (3) through a connecting mechanism.

3. The sound-absorbing duct according to claim 2, characterized in that: The fixing mechanism includes a second bracket (16) and a pressure plate (17). The two ends of the pressure plate (17) are connected to the second bracket (16) by bolts. The baffle (6) is clamped between the first baffle (4), the second baffle (5) and the second bracket (16). The second bracket (16) is fixedly connected to the side seat (3) by a connecting mechanism.

4. The sound-absorbing duct according to claim 3, characterized in that: Both the first bracket (13) and the second bracket (16) are provided with a connecting plate (18), the side seat (3) is fixedly connected with a support plate (19), the connecting plate (18) is provided with a fixing hole (20), and the support plate (19) is provided with a plurality of fixing holes (21).

5. The sound-absorbing duct according to claim 1, characterized in that: The side seat (3) is provided with a boss (22), and the slot is opened on the boss (22).

6. The sound-absorbing duct according to claim 1, characterized in that: The side seat (3) is fixedly connected to a baffle (25) for sealing the slide (9).

7. The sound-absorbing duct according to claim 1, characterized in that: Several grooves (26) are provided at both ends of the upper half (1) and the lower half (2).

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