Kitchen flue socket connector

Abstract

The utility model discloses a kitchen flue socket connecting piece which comprises a first flue and a second flue which are connected up and down and arranged oppositely, and the socket connecting piece comprises a connecting piece body and at least two limiting parts arranged in the middle of the connecting piece body, the lower section part of the connecting piece body is in interference fit connection with the upper section part of a first flue, and the limiting part is attached to an edge platform of an upper port of the first flue; the upper section part of the connecting piece body is in interference fit connection with the lower section part of the second flue, the first flue and the second flue are connected, so that an edge platform of an upper port of the first flue is attached to an edge platform of a lower port of the second flue, mechanical sealing is achieved through interference fit connection and clamping connection of a limiting part platform, the concrete blocking defect is eliminated, and meanwhile, the sealing effect is good. And the limiting part is rigidly clamped on the edge platform of the upper port of the first flue to construct an axial positioning reference, and the contact length of the first flue and the second flue on the socket connector is synchronously restrained.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen flue connection, specifically to kitchen flue socket connectors. Background Technology

[0002] In residential buildings, the airtightness of kitchen and bathroom exhaust ducts is crucial for ensuring indoor air quality and fire safety. Currently, the commonly used traditional construction method involves each exhaust duct passing through pre-drilled holes in the floor slab and being fixed by a supporting structure at the floor slab joint. This supporting structure is only arranged parallel to the long or short side of the duct, and the gap between the duct and the floor slab hole is filled and sealed with fine aggregate concrete. However, in actual construction, the fine aggregate concrete is prone to cracking due to material shrinkage, thermal expansion and contraction, and building settlement, resulting in the inability to effectively seal the natural gaps between the ducts and causing smoke leakage.

[0003] To address the aforementioned technical problems, this utility model provides a kitchen flue socket connector to replace the traditional concrete sealing, reducing gaps through mechanical connection. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a kitchen flue socket connector. The connector body and the flue are interlocked by an interference fit and a limiting part, achieving a tight fit between the two flues and reducing the assembly gaps caused by traditional sealing processes.

[0005] To achieve the above objectives, this utility model employs a kitchen flue socket connector. The socket connector includes a first flue and a second flue that are vertically connected and arranged opposite each other. The socket connector includes a connector body and at least two limiting portions located in the middle of the connector body. The lower section of the connector body is interference-fitted with the upper section of the first flue, and the limiting portions are fitted against the upper port edge platform of the first flue. The upper section of the connector body is interference-fitted with the lower section of the second flue, connecting the first and second flues, so that the upper port edge platform of the first flue and the lower port edge platform of the second flue are fitted together. Mechanical sealing is achieved through the interference fit and the locking of the limiting portion platform, eliminating the defects of concrete blockage. At the same time, the limiting portion rigidly engages with the upper port edge platform of the first flue to establish an axial positioning reference, simultaneously constraining the contact length of the first and second flues on the socket connector.

[0006] As a further optimization of the above solution, the connector body is a hollow cavity; and at least two positioning corner portions are provided on the outside of the cavity of the connector body, and the upper and lower sections of the positioning corner portions are respectively interference-fitted with the corresponding limiting corner portions of the first flue and the second flue. The connector body is a rectangular hollow cavity; and four positioning corner portions are provided on the outside of the cavity of the connector body. The positioning corner portions are located at the four corners of the connector body and the cross-section of the positioning corner portions is rectangular. The upper and lower sections of the four positioning corner portions are respectively interference-fitted with the corresponding limiting corner portions of the first flue and the second flue. The rectangular structure matches the standard flue cross-section, and the four corner positioning corner portions form four-point positioning to ensure the connection effect between the flue and the connector body.

[0007] As a further optimization of the above solution, the upper and lower sections of the connector body include a connecting section and a fastening section, respectively. The connecting sections of the upper and lower sections are wedge-shaped frames and are symmetrically distributed relative to the limiting part. The angle between the connecting section and the fastening section of the upper and lower sections is no greater than 10°. The wedge-shaped connecting section realizes the axial guidance of the flue and the connector body. The cross-sectional shape of the connecting section continuously generates progressive axial compressive stress during the assembly process, which promotes the tightness of the interference fit interface and resists vibration and loosening.

[0008] As a further optimization of the above solution, the positioning corner portion is set on the fastening section of the upper and lower sections, thereby effectively improving the sealing effect of the corner.

[0009] As a further optimization of the above solution, the limiting part is provided with a through hole. The positioning pin on the first flue passes through the through hole and cooperates with the positioning hole of the second flue to fix the first flue and the second flue. The cooperation between the through hole and the positioning pin hole forms a secondary fixation, which further improves the fixing effect between the flue and the connecting body.

[0010] As a further optimization of the above solution, the upper and lower fastening sections of the connector body are provided with protrusions on the outside, which cooperate with the annular grooves inside the first flue and the second flue for positioning. The protrusion structure and the annular groove form a positioning relationship, constructing a multi-directional constraint structure for the flue and the connector in the axial and radial directions, thereby realizing the positioning of the flue and the connector in the axial direction.

[0011] The kitchen flue socket connector of this utility model has the following beneficial effects:

[0012] 1. The kitchen flue socket connector of this utility model, through the interference fit between the connector body and the flue and the rigid snap-fit ​​of the limiting part to the edge platform of the flue port, reduces the sealing failure problem caused by material shrinkage or building settlement in the traditional concrete sealing process through the mechanical sealing structure. The limiting part simultaneously constrains the contact length between the two flues and the connector to ensure assembly symmetry.

[0013] 2. The kitchen flue socket connector of this utility model adopts a cuboid cavity structure, and the positioning corner parts set at its four corners form a four-point interference fit with the corresponding limiting corner parts of the flue, so as to ensure the connection effect between the flue and the connector body.

[0014] 3. The kitchen flue socket connector of this utility model has a wedge-shaped connecting section that axially guides the flue and the connector body. The cross-sectional shape of the connecting section continuously generates progressive axial compressive stress during the assembly process, which promotes tightness of the interference fit interface and resists vibration and loosening.

[0015] Referring to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and the embodiments of the present invention include many changes, modifications and equivalents. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of a kitchen flue socket connector;

[0017] Figure 2 This is a schematic diagram of the structure of the connector body in this utility model;

[0018] Figure 3 This is a schematic diagram of the through hole in this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting section in this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning pin part in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the protrusion in this utility model.

[0022] In the figure: 1. First flue; 11. Positioning pin; 2. Second flue; 3. Connector body; 31. Limiting part; 311. Through hole; 32. Positioning corner part; 4. Connecting section; 5. Fastening section; 51. Protrusion; 6. Annular groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0024] It should be noted that when an element is referred to as "set on" or "provided with" another element, it can be directly on the other element or there may be an intermediate element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. "Fixed connection" means fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this document. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terms used in the description herein are for the purpose of describing particular embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please refer to the instruction manual appendix. Figure 1-6 The present invention provides a first embodiment of a kitchen flue socket connector. The connector body 3 is disposed between a first flue 1 and a second flue 2 arranged vertically opposite to each other. The lower section of the connector body 3 is connected to the upper section of the first flue 1 with an interference fit, and the upper section of the connector body 3 is connected to the lower section of the second flue 2 with an interference fit, thereby realizing the axial connection of the two flues.

[0027] At least two limiting parts 31 are arranged in the middle of the outer surface of the connector body 3. Preferably, in this embodiment, the two limiting parts 31 are arranged opposite to each other on both sides of the connector body 3. The limiting parts 31 are engaged with the edge platform of the upper port of the first flue 1, establishing an axial positioning reference and constraining the contact length between the two flues and the connector, replacing the traditional concrete sealing process and reducing the sealing failure defects caused by material shrinkage or settlement.

[0028] In some examples, the connector body 3 adopts a cuboid hollow cavity structure, and positioning corner portions 32 are provided at the four corners of the cavity. Preferably, in this embodiment, the positioning corner portions 32 are beveled structures. The positioning corner portions 32 form a four-point interference fit with the corresponding limiting corner portions of the first flue 1 and the second flue 2 to ensure the connection effect between the flue and the connector body 3.

[0029] The upper and lower sections of the connector body 3 are provided with connecting sections 4 and fastening sections 5. The connecting section 4 is a wedge-shaped frame structure. The angle between the planes where the connecting section 4 and the fastening section 5 are located is controlled within 10°. The wedge-shaped connecting section 4 guides the flue and the connector body 3 to axially align through geometric guidance, and continuously generates progressive axial compressive stress during the insertion process to strengthen the interlocking strength of the interference fit interface. The fastening section 5 integrates the positioning corner part 32, and forms a local sealing reinforcement through the interference fit of the corner area, effectively suppressing the boundary layer loosening phenomenon caused by vibration.

[0030] Please refer to the instruction manual appendix. Figure 1-6 This utility model provides a first embodiment of a kitchen flue socket connector. The socket connector connects a first flue 1 and a second flue 2 that are arranged opposite to each other. The socket connector includes a connector body 3 and at least two limiting parts 31 located in the middle of the connector body 3. The lower section of the connector body 3 is interference-fitted with the upper section of the first flue 1, and the limiting parts 31 are attached to the upper port edge platform of the first flue 1. The upper section of the connector body 3 is interference-fitted with the lower section of the second flue 2, connecting the first flue 1 and the second flue 2, so that the upper port edge platform of the first flue 1 and the lower port edge platform of the second flue 2 are attached. Mechanical sealing is achieved through the interference fit and the platform engagement of the limiting parts 31, eliminating the defects of concrete blockage. At the same time, the limiting parts 31 rigidly engage with the upper port edge platform of the first flue 1 to form an axial positioning reference, simultaneously constraining the contact length of the first flue 1 and the second flue 2 on the socket connector.

[0031] As a further optimization of the above solution, the connector body 3 is a hollow cavity; and at least two positioning corner portions 32 are provided on the outside of the cavity of the connector body 3, and the upper and lower sections of the positioning corner portions 32 are respectively interference-fitted with the corresponding limiting corner portions of the first flue 1 and the second flue 2. The connector body 3 is a rectangular hollow cavity; and four positioning corner portions 32 are provided on the outside of the cavity of the connector body 3. The positioning corner portions 32 are located at the four corners of the connector body 3 and the cross-section of the positioning corner portions 32 is rectangular. The upper and lower sections of the four positioning corner portions 32 are respectively interference-fitted with the corresponding limiting corner portions of the first flue 1 and the second flue 2. The rectangular structure matches the standard flue cross-section, and the four corner positioning corner portions 32 form four-point positioning to ensure the connection effect between the flue and the connector body 3.

[0032] As a further optimization of the above solution, the upper and lower sections of the connector body 3 respectively include a connecting section 4 and a fastening section 5; the connecting sections 4 of the upper and lower sections are both wedge-shaped frames and are symmetrically distributed relative to the limiting part 31. The angle between the planes of the connecting sections 4 and the fastening sections 5 of the upper and lower sections is no greater than 10°. The wedge-shaped connecting sections 4 realize the axial guidance of the flue and the connector body 3. The cross-sectional shape of the connecting sections 4 continuously generates progressive axial compressive stress during the assembly process, which promotes the tightness of the interference fit interface and resists vibration and loosening.

[0033] Furthermore, this embodiment strengthens the connection structure through the following optimized design:

[0034] First, the positioning corner part 32 is integrated into the fastening section 5 area of ​​the upper and lower sections of the connector body 3. The corner area is formed by interference fit to form a local sealing reinforcement area to ensure the connection effect at the corner.

[0035] Secondly, the limiting part 31 is provided with a through hole 311 structure. The positioning pin part 11 of the first flue 1 and the positioning hole of the second flue 2 are fixed through the through hole 311. This secondary fixing mechanism adds shear constraint force on the basis of interference fit, effectively offsetting the axial displacement caused by building settlement or vibration, and strengthening the overall stability of the connection interface.

[0036] Furthermore, a protrusion 51 is provided on the outside of the fastening section 5, which forms a three-dimensional geometric engagement relationship with the annular groove 6 inside the flue: radially, the groove sidewall interferes with the contour of the protrusion 51 to generate circumferential constraint, and axially, the groove depth direction matches the height of the protrusion 51 to build a precise positioning reference, thereby forming a multi-directional displacement locking system, which further strengthens the connection effect between the flue and the connector body 3.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A kitchen chimney socket connector, characterized in that, The socket connector comprises a first flue (1) and a second flue (2) arranged oppositely in an up-down connection, and the socket connector comprises a connector body (3) and at least two limiting portions (31) arranged in the middle of the connector body (3), the lower section of the connector body (3) is connected with the upper section of the first flue (1) in an interference fit, and the limiting portion (31) is attached to the upper end edge platform of the first flue (1); the upper section of the connector body (3) is connected with the lower section of the second flue (2) in an interference fit, and the first flue (1) and the second flue (2) are connected, so that the upper end edge platform of the first flue (1) is attached to the lower end edge platform of the second flue (2).

2. A kitchen chimney socket connector as claimed in claim 1, wherein: The connector body (3) is a hollow cavity, and at least two positioning edge corner portions (32) are arranged outside the cavity of the connector body (3), and the upper and lower sections of the positioning edge corner portion (32) are connected with the corresponding limiting edge corner portions of the first flue (1) and the second flue (2) in an interference fit, respectively.

3. The kitchen hood spigot coupling of claim 1, wherein: The connector body (3) is a hollow cavity of a cuboid, and four positioning edge corner portions (32) are arranged outside the cavity of the connector body (3), the positioning edge corner portions (32) are arranged on the four corners of the connector body (3) and the cross section of the positioning edge corner portion (32) is a rectangle, and the upper and lower sections of the four positioning edge corner portions (32) are connected with the corresponding limiting edge corner portions of the first flue (1) and the second flue (2) in an interference fit, respectively.

4. A kitchen chimney socket coupling as claimed in claim 2 or 3, wherein: The upper and lower sections of the connector body (3) respectively comprise a connecting section (4) and a fastening section (5), and the connecting sections (4) of the upper and lower sections are wedge-shaped frames and are symmetrically distributed relative to the limiting portion (31).

5. A kitchen chimney socket connector as claimed in claim 4, wherein: The included angle between the connecting section (4) and the fastening section (5) of the upper and lower sections is not greater than 10°.

6. The kitchen hood spigot coupling of claim 4, wherein: The positioning edge corner portion (32) is arranged on the fastening section (5) of the upper and lower sections.

7. The kitchen hood spigot coupling of claim 4, wherein: The limiting portion (31) is provided with a through hole (311), and a positioning pin portion (11) on the first flue (1) passes through the through hole (311) to cooperate with a positioning hole of the second flue (2) to fix the first flue (1) and the second flue (2).

8. The kitchen hood spigot coupling of claim 4, wherein: The outer part of the fastening section (5) of the upper and lower sections of the connector body (3) is provided with a protruding portion (51) which cooperates with the annular groove (6) in the inner part of the first flue (1) and the second flue (2), respectively.

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