Wall-mounted assembly type tuyere assembly with good sealing performance
By using the snap-fit structure between the embedded parts and the shell and front panel, the problem of poor sealing between the air duct and the wall is solved, thereby improving the airtightness between the air outlet and the wall and the construction efficiency.
Patent Information
- Application Number
- CN202422567770.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In existing technologies, the ducts of positive pressure air supply systems are not properly sealed to the walls, resulting in large air leakage, insufficient air volume on the supply floors, and low construction efficiency.
The system employs a snap-fit structure between embedded parts and the shell and front panel. The embedded parts are fixed during civil construction to form a three-layer seal, ensuring the air supply outlet is airtight to the wall.
This achieves a tight seal between the air outlet and the wall, reduces air leakage, and improves air supply efficiency and construction efficiency.
Smart Images

Figure CN223499755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering air supply outlet technology, specifically to a wall-mounted assembled air outlet assembly with good sealing performance. Background Technology
[0002] Following the implementation of the "Technical Standard for Smoke Control and Exhaust Systems in Buildings" GB51251-2017, stricter requirements have been placed on the airtightness of positive pressure ventilation systems. However, the current state of products and construction is worrying. On construction sites, ductwork is often installed by drilling holes after construction has begun, resulting in poor sealing between the ductwork and the walls, significant air leakage in the duct system, and frequent instances of insufficient airflow on floors requiring ventilation. Furthermore, the existing products and construction techniques are relatively outdated, leading to low construction efficiency and requiring expertise in civil engineering, ventilation, and electrical work, making it difficult to guarantee quality. Utility Model Content
[0003] To address the aforementioned issues, this utility model provides a wall-mounted prefabricated air vent assembly with excellent sealing performance. This assembly incorporates pre-embedded parts of a specific size, pre-installed during construction according to the dimensions of the air vent. This ensures that the outer side of the pre-embedded parts is tightly fitted and sealed to the wall, guaranteeing the airtightness between the pre-embedded parts and the wall.
[0004] This utility model provides a wall-mounted prefabricated air vent assembly with good sealing performance. The wall-mounted prefabricated air vent assembly with good sealing performance includes an air outlet and embedded parts. The air outlet includes a housing and a front panel. The front panel is snapped into the front end of the housing. The housing is snapped into the embedded parts.
[0005] The embedded part has a slot, the housing has a first protrusion, and the front panel has a second protrusion. During civil construction, the embedded part is first installed according to the size of the air outlet. Then, the housing is placed between the embedded parts, so that the first protrusion engages with the slot. Finally, the second protrusion of the front panel engages with the first protrusion to seal the air outlet to the wall. Furthermore, the embedded part can be an embedded frame with openings at both the front and back. During civil construction, an embedded frame of a certain size can be set according to the size of the air outlet. The embedded frame is then installed in the wall during construction, ensuring a tight fit between the frame and the wall, forming the first layer of seal. The embedded frame has a slot, and the housing has a first protrusion. When installing the air outlet, the first protrusion engages with the slot, forming the second layer of seal between the housing and the embedded frame. Finally, the front panel engages with the first protrusion through the second protrusion, forming the third layer of seal. These three layers of seal ensure a tight seal between the air outlet and the wall. Alternatively, the embedded part can be an embedded plate. During civil construction, two embedded plates are first installed at a certain interval on both sides of the wall according to the size of the air outlet, and fixed with cement mortar. The housing is then placed between the two embedded frames.
[0006] Optionally, the embedded part is made of steel. For example, the embedded plate is made of steel. However, this invention is not limited to this, and those skilled in the art can select a suitable material for the embedded part according to the construction environment.
[0007] Optionally, the embedded part includes a first bending portion, a connecting portion, and a second bending portion. The first bending portion is located at the front end of the connecting portion and bends outward, while the second bending portion is located at the rear end of the connecting portion and bends inward. Further, the front end of the connecting portion is near the exterior of the wall (i.e., the end that engages with the front panel), and the rear end of the connecting portion is near the ventilation shaft. The first and second bending portions are respectively provided with slots to securely engage and seal the housing and the embedded part.
[0008] Optionally, the first bending portion includes a first inclined portion, a first part, and a second part connected in sequence, wherein the cross-sections of the first part and the second part are right angles; the first inclined portion is inclined inward; the second part is disposed at the front end of the connecting portion; the first part, the second part, and the front end of the connecting portion form a first snap-fit groove. Further, the second part is installed at the front end of the connecting portion, and the installation position of the second part is a certain distance from the front end of the connecting portion, the length of which is less than the length of the first part, facilitating the smooth insertion of the subsequent housing into the first snap-fit groove.
[0009] Optionally, the second bend includes a third part and a fourth part connected in sequence. The second bend is right-angled, and the third part is directly connected to the rear end of the connecting part. The third part, the fourth part, and a portion of the connecting part form a first groove. Furthermore, the third part, the fourth part, and a portion of the connecting part forming the first groove facilitates the insertion of the subsequent housing into the first groove.
[0010] Optionally, rubber strips are provided in the first snap-fit groove and the first recess. Furthermore, to further improve the sealing performance, providing rubber strips in the first snap-fit groove and the first recess can further enhance the sealing between the housing and the embedded part.
[0011] Optionally, the first protrusion includes a first inclined edge, a second horizontal edge, a third inclined edge, and a fourth vertical edge connected in sequence. The first inclined edge is inclined inward and connected to the front end of the housing. The first inclined edge and the third inclined edge are symmetrically arranged. Further, one end of the first inclined edge is connected to the front end of the housing and extends inward. The other end of the first inclined edge is connected to one end of the second horizontal edge, which extends outward. The other end of the second horizontal edge is connected to one end of the third inclined edge, which extends inward. The other end of the third inclined edge is connected to one end of the fourth vertical edge, which extends towards the rear end of the housing. The plane containing the second horizontal edge is perpendicular to the plane containing the fourth vertical edge. The first inclined edge and the third inclined edge are mirror-symmetrical about the center of the second horizontal edge.
[0012] Optionally, a rubber strip or rubber layer may be provided on the second horizontal edge. For example, the side of the second horizontal edge that contacts the front panel may be covered with a rubber layer. Alternatively, a rubber strip may be fitted onto the second horizontal edge. By providing a rubber strip or rubber layer, the sealing performance between the front panel and the housing can be further improved.
[0013] Optionally, a second protrusion is provided on the inner side of the front panel. The second protrusion includes a first extension, a second inclined portion, and a third inclined portion connected in sequence. The second inclined portion is inclined outward, and the third inclined portion is inclined inward. Further, the inner side of the front panel refers to the side closest to the housing. One end of the first extension is connected to the inner side of the front panel, and the first extension is perpendicular to the front panel. The other end of the first extension is connected to one end of the second inclined portion, which is inclined outward, and the other end of the second inclined portion is inclined inward. In use, the second inclined portion engages with the first protrusion.
[0014] Optionally, the air outlet is a multi-bladed air outlet. However, this invention is not limited to this, and those skilled in the art can adjust the type of air outlet according to the usage environment.
[0015] Compared with the prior art, the present invention achieves at least one of the following beneficial effects:
[0016] (1) The wall-mounted assembled air outlet assembly with good sealing performance of this utility model can solve the problem of poor sealing between the air duct and the wall, large air leakage in the air duct system, and insufficient air volume on floors that need air supply by setting up embedded parts.
[0017] (2) In the construction process of the wall-mounted prefabricated air outlet assembly of this utility model, a pre-embedded frame of a certain size can be set according to the size of the air outlet. During the construction process, the pre-embedded frame is installed in the wall, which can ensure that the pre-embedded frame is tightly attached to the wall to form the first layer of seal. The pre-embedded frame has a slot, and the shell has a first protrusion. When the air outlet is installed, the first protrusion is engaged with the slot to form the second layer of seal between the shell and the pre-embedded frame. Finally, the front panel is engaged with the first protrusion through the second protrusion to form the third layer of seal. Through the three layers of seal, the tightness between the air outlet and the wall is guaranteed.
[0018] (3) By setting a rubber strip in the first snap groove and a rubber strip in the first groove, the sealing between the housing and the embedded part can be further improved. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 It shows Figure 1 A structural diagram showing a well-sealed wall-mounted prefabricated air vent assembly installed inside a wall is provided.
[0021] Figure 2 An exemplary embodiment of the embedded part structure diagram is shown;
[0022] Figure 3 An exemplary embodiment of the shell structure diagram is shown;
[0023] Figure 4 An exemplary embodiment of the front panel structure diagram is shown;
[0024] Figure 5 A structural diagram of a well-sealed wall-mounted prefabricated air vent assembly not installed in the wall is shown.
[0025] Figure 6 It shows Figure 5 Enlarged view of section A;
[0026] Figure 7It shows Figure 5 Enlarged view of section B.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1-Air outlet; 2-Embedded part; 11-Housing shell; 12-Front panel; 110-First protrusion; 111-Second protrusion; 112-First inclined edge; 113-Second horizontal edge; 114-Third inclined edge; 115-Fourth vertical edge; 116-First extension; 117-Second inclined part; 118-Third inclined part; 21-Slot; 210-First bend; 211-Connecting part; 212-Second bend; 213-First inclined part; 214-First part; 215-Second part; 216-First snap-fit groove; 217-Third part; 218-Fourth part; 219-First groove; 220-Rubber strip. Detailed Implementation
[0029] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0031] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0034] In an exemplary embodiment of this utility model, Figure 1 A structural diagram showing a well-sealed wall-mounted prefabricated air vent assembly installed inside a wall is provided. Figure 2 An exemplary embodiment of the embedded part structure diagram is shown; Figure 3 An exemplary embodiment of the shell structure diagram is shown; Figure 4 An exemplary embodiment of the front panel structure diagram is shown; Figure 5 A structural diagram of a well-sealed wall-mounted prefabricated air vent assembly not installed in the wall is shown. Figure 6 It shows Figure 5 Enlarged view of section A; Figure 7 It shows Figure 5 Enlarged view of section B.
[0035] refer to Figures 1-7 As shown, the wall-mounted prefabricated air vent assembly with good sealing performance includes an air outlet 1 and embedded parts 2. The air outlet 1 includes a housing 11 and a front panel 12. The front panel 12 is snapped into the front end of the housing 11. The housing 1 is snapped into the embedded parts 2.
[0036] The embedded part 2 has a slot, the housing 11 has a first protrusion 110, and the front panel 12 has a second protrusion 111.
[0037] The embedded part 2 includes a first bending portion 210, a connecting portion 211, and a second bending portion 212. The first bending portion 210 is located at the front end of the connecting portion 211 and bends outward, while the second bending portion 212 is located at the rear end of the connecting portion 211 and bends inward. The embedded part 2 is an embedded frame that is open at both the front and rear, i.e., an embedded frame that is open from front to back.
[0038] The first bending portion 210 includes a first inclined portion 213, a first part 214, and a second part 215 connected in sequence. The cross-sections of the first part 214 and the second part 215 are right angles. The first inclined portion 213 is inclined inward. The second part 213 is located at the front end of the connecting portion 211, and the installation position of the second part is a certain distance away from the front end of the connecting portion. The length of this certain distance is less than the length of the first part. The first part 214, the second part 215, and the front end of the connecting portion 211 form a first snap-fit groove 216. A rubber strip 220 is provided in the first snap-fit groove 216. The figure only shows the setting position of the rubber strip. In actual use, the rubber strip is set in the first snap-fit groove, and the rubber strip is in close contact with the first part, the second part, and the connecting portion to ensure sealing.
[0039] The second bending portion 212 includes a third portion 217 and a fourth portion 218 connected in sequence. The second bending portion 212 is right-angled. The third portion 217 is directly connected to the rear end of the connecting portion 211. The third portion 217, the fourth portion 218, and a part of the connecting portion 211 form a first groove 219. A rubber strip 220 is provided in the first groove 219.
[0040] The first protrusion 110 includes a first inclined edge 112, a second horizontal edge 113, a third inclined edge 114, and a fourth vertical edge 115 connected in sequence. The first inclined edge 112 is inclined inward and connected to the front end of the housing 11. One end of the first inclined edge 112 is connected to the front end of the housing 11 and extends inclinedly towards the inside of the housing 11. The other end of the first inclined edge 112 is connected to one end of the second horizontal edge 113. The second horizontal edge 113 extends horizontally towards the outside of the housing 11. The other end of the second horizontal edge 113 is connected to one end of the third inclined edge 114. The third inclined edge 114 extends inclinedly towards the inside of the housing 11. The other end of the third inclined edge 114 is connected to one end of the fourth vertical edge 115. The fourth vertical edge 115 extends towards the rear end of the housing. The plane containing the second horizontal edge 113 is perpendicular to the plane containing the fourth vertical edge 115. The first inclined edge 112 and the third inclined edge 114 are mirror-symmetrical about the center of the second horizontal edge 113. A semi-circular groove is provided at the center of the second horizontal edge 113, and the interior of the semi-circular groove is filled with a rubber strip. By providing the rubber strip, the sealing performance between the front panel and the housing is further improved.
[0041] The front panel 12 has a second protrusion 111 at each of its inner ends. The second protrusion 111 includes a first extension 116, a second inclined portion 117 and a third inclined portion 118 connected in sequence. One end of the first extension 116 is welded to the inner side of the front panel 12. The first extension 116 is perpendicular to the front panel 12. The other end of the first extension 116 is connected to one end of the second inclined portion 117. The second inclined portion 117 extends inclinedly to both sides of the front panel 12. The other end of the second inclined portion 117 extends inclinedly to the inner side of the front panel 12.
[0042] During use, in the civil construction process, embedded parts are first installed according to the size of the air outlet. One side of the embedded part is then fixed to the wall with cement mortar. With these pre-installed embedded parts, it is unnecessary to create openings in the wall for the air outlet during later construction. The embedded frame fits tightly against the wall, forming the first layer of seal. Next, a shell of a certain size is placed between the embedded parts. The first locking groove at the front engages with the first protrusion, and the shell is inserted into the first groove at the rear, forming a second layer of seal between the shell and the embedded frame. Finally, a front panel of a certain size is attached and engaged with the second and first protrusions, forming the third layer of seal. These three layers of seal ensure a tight seal between the air outlet and the wall.
[0043] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A wall-mounted prefabricated air vent assembly with good sealing performance, characterized in that, The well-sealed wall-mounted prefabricated air outlet assembly includes an air outlet and embedded parts. The air outlet includes a housing and a front panel, with the front panel snapped onto the front end of the housing; the housing is snapped into the embedded parts. The embedded part has a slot, the housing has a first protrusion, and the front panel has a second protrusion.
2. The wall-mounted prefabricated air vent assembly according to claim 1, characterized in that, The embedded part includes a first bending part, a connecting part, and a second bending part. The first bending part is located at the front end of the connecting part and bends outward, while the second bending part is located at the rear end of the connecting part and bends inward.
3. The wall-mounted prefabricated air vent assembly according to claim 2, characterized in that, The first bending portion includes a first inclined portion, a first part, and a second part connected in sequence. The cross-sections of the first part and the second part are right angles. The first inclined portion is inclined inward. The second part is disposed at the front end of the connecting portion. The first part, the second part, and the front end of the connecting portion form a first snap-fit groove. The second bend includes a third part and a fourth part connected in sequence. The second bend is right-angled. The third part is directly connected to the rear end of the connecting part. The third part, the fourth part, and a part of the connecting part form a first groove.
4. The wall-mounted prefabricated air vent assembly according to claim 1, characterized in that, The first protrusion includes a first inclined edge, a second horizontal edge, a third inclined edge, and a fourth vertical edge connected in sequence. The first inclined edge is inclined inward and connected to the front end of the housing. The first inclined edge and the third inclined edge are symmetrically arranged.
5. The wall-mounted prefabricated air vent assembly according to claim 1, characterized in that, The inner side of the front panel is provided with a second protrusion, which includes a first extension, a second inclined portion and a third inclined portion connected in sequence. The second inclined portion is inclined outward and the third inclined portion is inclined inward.
6. The wall-mounted prefabricated air vent assembly according to claim 3, characterized in that, Rubber strips are provided in the first snap-fit groove and the first recess.
7. The wall-mounted prefabricated air vent assembly according to claim 4, characterized in that, A rubber strip is provided on the second horizontal edge.
8. The wall-mounted prefabricated air vent assembly according to claim 1, characterized in that, The air outlet is a multi-bladed air outlet.
9. The wall-mounted prefabricated air vent assembly according to claim 1, characterized in that, The embedded parts are made of steel.