Ventilation pipeline through-wall sound insulation and shock absorption device

Abstract

The utility model discloses a ventilating duct through-wall sound insulation and shock absorption device, which relates to the field of building construction, and adopts the technical scheme that the ventilating duct through-wall sound insulation and shock absorption device comprises a wall hole formed in a wall body, a ventilating duct penetrates through the wall through the wall hole, the section size of the wall hole is larger than that of the ventilating duct, and two end parts of the wall hole are respectively provided with a group of blocking mechanisms; the plugging mechanisms are located on the outer side of the ventilation pipeline, and the damping material is filled between the two plugging mechanisms and located between the pipeline and the inner wall of the wall hole. A foam lining rod is filled between the plugging mechanism and the ventilation pipeline, and sealant is arranged on the outer side of the foam lining rod and located between the plugging mechanism and the ventilation pipeline. The utility model has the beneficial effects that the noise can be effectively reduced, the noise transmission is reduced, and a quiet environment is created for the theater auditory hall; the structure is simple, the connection mode of all the components is reasonable and easy to operate, and the installation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a sound insulation and shock absorption device for ventilation ducts passing through walls. Background Technique

[0002] In theater projects, the noise requirements for theater auditoriums are particularly strict, and reducing the noise generated during the operation of the mechanical and electrical systems has become a major difficulty.

[0003] Currently, mufflers are usually installed on the main pipelines inside and outside the machine room of the ventilation duct to reduce noise. However, for the air ducts directly sent from the air conditioning machine room to the balcony or stalls through the air shaft, relying solely on mufflers often cannot completely solve the problem. Since the noise of the equipment in the machine room will be transmitted through the air duct, if effective sound insulation treatment is not carried out, these noises will spread along the wall to the theater auditorium, seriously affecting the quietness of the indoor environment.

[0004] Moreover, in practical applications, the existing sound insulation measures for ventilation ducts are relatively limited. When space permits, the sound insulation treatment cannot be maximally carried out, and the requirements for a quiet and comfortable environment cannot be met. Content of the Utility Model

[0005] In view of the above technical problems, the utility model provides a sound insulation and shock absorption device for ventilation ducts passing through walls.

[0006] The technical solution is as follows: it includes a wall hole opened on the wall, the ventilation duct passes through the wall through the wall hole, the cross-sectional size of the wall hole is larger than the cross-sectional size of the ventilation duct, a set of plugging mechanisms are respectively arranged at both ends of the wall hole, the plugging mechanisms are located outside the ventilation duct, a shock-absorbing material is filled between the two plugging mechanisms, and the shock-absorbing material is located between the duct and the inner wall of the wall hole;

[0007] A foam lining rod is filled between the plugging mechanism and the ventilation duct, and a sealant is arranged outside the foam lining rod, and the sealant is between the plugging mechanism and the ventilation duct.

[0008] Preferably, the plugging mechanism includes a plurality of sealing plates assembled end to end in sequence, a vertical plate is fixedly arranged on one side wall of each sealing plate facing the wall hole, and a plurality of elastic pieces are arranged in an array on the plate body of the vertical plate.

[0009] Preferably, a slot is opened at one end of each sealing plate, a plug is fixedly arranged at the other end, and two adjacent sealing plates are inserted through the slot and the plug.

[0010] Preferably, the elastic piece includes an installation end fixedly arranged on the vertical plate, and one end of the installation end far away from the cover plate is bent into an elastic end.

[0011] Preferably, the sealant is a polyurethane sealant, a silicone sealant or a silicone rubber sealant.

[0012] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are as follows: it can effectively reduce noise and reduce noise transmission, creating a quiet environment for the theater auditorium; the structure is simple, the connection method between each component is reasonable and easy to operate, greatly improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention.

[0014] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0015] Figure 3 It is a schematic diagram of the plugging mechanism of the embodiment of the present invention.

[0016] Figure 4 It is a schematic diagram of the sealing plate structure of the embodiment of the present invention Figure 1 .

[0017] Figure 5 It is a schematic diagram of the sealing plate structure of the embodiment of the present invention Figure 2 .

[0018] Figure 6 It is a front view of the sealing plate of the embodiment of the present invention.

[0019] Among them, the reference numerals are: 1, wall; 2, ventilation duct; 3, plugging mechanism; 4, foam lining rod; 5, sealing plate; 6, vertical plate; 7, elastic piece; 8, slot; 9, plug; 10, installation end; 11, elastic end. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0022] In the description of the creation of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the creation of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the creation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the creation of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0023] In the description of the creation of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present utility model can be understood through specific circumstances.

[0024] Embodiment 1

[0025] See Figures 1 to 6 , the present utility model provides a sound insulation and shock absorption device for a ventilation duct passing through a wall, which includes a wall hole opened on a wall 1, and the ventilation duct 2 passes through the wall through the wall hole. The cross-sectional size of the wall hole is larger than the cross-sectional size of the ventilation duct 2. A set of plugging mechanisms 3 are respectively arranged at both ends of the wall hole. The plugging mechanisms 3 are located outside the ventilation duct 2. A shock-absorbing material is filled between the two plugging mechanisms 3, and the shock-absorbing material is located between the duct and the inner wall of the wall hole;

[0026] The shock-absorbing material is a polyethylene soft shock-absorbing material with a bulk density of not less than 48 kg / m³. This shock-absorbing material has good elasticity and sound absorption performance, and can effectively reduce the vibration and noise generated by the ventilation duct 2 during operation from being transmitted to the wall 1; the shock-absorbing material can be filled in a layered manner, and polyethylene soft shock-absorbing materials with different densities are alternately laid to further improve the sound insulation and shock absorption effect;

[0027] A foam lining rod 4 is filled between the plugging mechanism 3 and the ventilation duct 2, and a sealant is arranged outside the foam lining rod 4, and the sealant is between the plugging mechanism 3 and the ventilation duct 2.

[0028] The foam lining rod 4 is an expandable elastic foam lining rod made of microporous polyethylene material. It has a tiny closed pore structure, can provide good elastic support when being squeezed, and also has certain sound absorption performance. The sealant can bond the foam lining rod 4 tightly with the plugging mechanism 3 and the ventilation duct 2 to prevent sound and air flow from leaking through the gaps.

[0029] The plugging mechanism 3 includes several sealing plates 5 assembled end to end in sequence. On one side wall of each sealing plate 5 facing the wall hole, a vertical plate 6 is fixedly arranged, and several elastic pieces 7 are arranged in an array on the plate body of the vertical plate 6.

[0030] The shape and size of the sealing plate 5 correspond to those of the ventilation duct 2. When the cross-sectional shape of the ventilation duct 2 is rectangular, the sealing plate 5 is in the shape of a long strip plate. Chamfers are respectively arranged at both ends of the sealing plate 5. The design of the chamfers enables adjacent sealing plates 5 to fit more tightly when splicing, reducing the generation of gaps, thereby improving the sealing performance of the entire plugging mechanism 3. Multiple sealing plates 5 are spliced end to end in sequence to form a rectangle and are sleeved on the outer side of the ventilation duct 2;

[0031] When the cross-sectional shape of the ventilation duct 2 is circular, the shape of the sealing plate 5 is arc-shaped. Multiple sealing plates 5 are spliced end to end in sequence to form a circle and are sleeved on the outer side of the ventilation duct 2.

[0032] A slot 8 is opened at one end of each sealing plate 5, and a plug 9 is fixedly arranged at the other end. Two adjacent sealing plates 5 are inserted and connected through the slot 8 and the plug 9.

[0033] The shape of the slot 8 corresponds to that of the plug 9. Further, the slot 8 and the plug 9 are in the shape of a dovetail. The design of the dovetail can ensure that after the plug 9 is inserted into the slot 8, good limits can be obtained in all directions, preventing relative displacement between adjacent sealing plates 5 during use.

[0034] The elastic piece 7 includes a mounting end 10 fixedly arranged on the vertical plate 6, and an elastic end 11 is formed by bending the end of the mounting end 10 away from the cover plate.

[0035] The elastic piece 7 is made of high-strength elastic metal material, has good elastic resilience and durability. The mounting end 10 is firmly fixed on the vertical plate 6 by means of welding, riveting or bolt connection, etc., ensuring that it will not loosen or fall off during use. The elastic end 11 is subjected to special arc bending treatment, making its contact with the inner wall of the wall hole closer and more stable;

[0036] When the plugging mechanism 3 wants to be fixed on the wall hole, the elastic piece 7 is inserted into the wall hole. The elastic end 11 of the elastic piece 7 abuts against the inner wall of the wall hole, and the outward supporting force is generated by its elastic restoring force, so as to firmly fix the plugging mechanism 3 in the wall hole. Since the inner wall of the wall hole is not necessarily completely flat, when the elastic end 11 contacts the inner wall of the wall hole, the elastic end 11 can closely fit with the inner wall of the wall hole, greatly improving the fixing stability of the plugging mechanism 3 in the wall hole with uneven surface.

[0037] The sealant is polyurethane sealant, silicone sealant or silicone sealant.

[0038] The sealant can be a non-hardening sealant based on polyurethane, silicone or silicone. The most basic requirement of the acoustic sealant is that these sealants should have sufficient flexibility within the service life of the building and will not crack or delaminate. In addition, the sealant should also have an appropriate fire rating, which not only plays a role in maintaining the fire rating but also has a sound insulation effect.

[0039] When the utility model is in use, a wall hole with a cross-sectional size larger than that of the ventilation duct 2 is opened on the wall. Then, the ventilation duct 2 is installed through the wall hole. Then, a polyethylene soft shock-absorbing material with a bulk density of not less than 48 kg / m³ is filled between the wall hole and the ventilation duct 2, and this material can effectively reduce the transmission of vibration and noise.

[0040] The plugging mechanism 3 is assembled on the outer side of the ventilation duct 2, and then the plugging mechanism 2 is inserted into the wall hole, and the plugging mechanism is fixed by the elastic restoring force of the elastic piece 7; an expandable elastic foam liner 4 made of microporous polyethylene material is filled between the plugging mechanism 3 and the ventilation duct 2, and then a sealant is applied on the outer side of the foam liner 4.

[0041] When the ventilation duct 2 is running, through the synergistic effect of the shock-absorbing material, the foam liner 4 and the sealant, the transmission of noise and vibration to the wall is effectively reduced, and at the same time, it has good fire resistance and stability, providing a guarantee for a quiet and comfortable building environment.

[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sound insulation and shock absorption device for a ventilation duct passing through a wall, comprising a wall hole opened in a wall (1), and the ventilation duct (2) passes through the wall through the wall hole, characterized in that, The cross-sectional dimension of the wall hole is larger than that of the ventilation duct (2). A set of plugging mechanisms (3) are respectively arranged at both ends of the wall hole. The plugging mechanisms (3) are located outside the ventilation duct (2). A shock-absorbing material is filled between the two plugging mechanisms (3), and the shock-absorbing material is located between the duct and the inner wall of the wall hole; A foam lining rod (4) is filled between the plugging mechanism (3) and the ventilation duct (2). A sealant is arranged outside the foam lining rod (4), and the sealant is between the plugging mechanism (3) and the ventilation duct (2).

2. The ventilation duct wall-penetrating sound insulation and vibration reduction device according to claim 1, characterized in that: The plugging mechanism (3) includes a number of sealing plates (5) assembled end to end in sequence. A vertical plate (6) is fixedly arranged on one side wall of each sealing plate (5) facing the wall hole, and a number of elastic pieces (7) are arranged in an array on the plate body of the vertical plate (6).

3. The sound insulation and shock absorption device for ventilation ducts passing through walls according to claim 2, characterized in that, A slot (8) is formed at one end of each sealing plate (5), and a plug (9) is fixedly arranged at the other end. Two adjacent sealing plates (5) are plugged through the slot (8) and the plug (9).

4. The sound insulation and shock absorption device for ventilation ducts passing through walls according to claim 3, characterized in that, The elastic piece (7) includes a mounting end (10) fixedly arranged on the vertical plate (6), and an elastic end (11) is formed by bending the end of the mounting end (10) away from the cover plate.

5. The sound insulation and shock absorption device for ventilation ducts passing through walls according to claim 1, characterized in that, The sealant is polyurethane sealant, silicone sealant or silicone rubber sealant.

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