Socket and spigot joint device for connecting upper-layer flue and lower-layer flue

Abstract

The utility model discloses a socket-and-spigot joint device for connecting an upper flue and a lower flue. The socket-and-spigot joint device comprises a socket-and-spigot sleeve and a bearing piece, wherein the socket-and-spigot sleeve is used for connecting the upper flue and the lower flue and is of a ladder section type structure; the bearing piece is fixed on a floor above the lower flue and is used for positioning the downward inserting position of the socket-and-spigot sleeve; the socket sleeve comprises an upper bearing section which is connected with an upper-layer flue and has a net size larger than the size of the flue, a lower inserting section which is connected with a lower-layer flue and has a net size smaller than the size of the flue, and a flue connecting section which is connected between the upper bearing section and the lower inserting section and has a net size the same as the size of the flue; the bearing piece is arranged on the outer side of the lower inserting section in a sleeving mode and fixed to the bottom of the flue connecting section. The socket and spigot joint device for connecting the upper flue and the lower flue has the advantages of being convenient to construct, high in safety, low in cost and high in construction quality.

Description

Technical Field

[0001] The utility model relates to the technical field of building flue construction, in particular to a socket joint device for connecting upper and lower flues. Background Art

[0002] Today, residential construction utilizes prefabricated flues. The flue and pre-reserved opening dimensions are designed according to the drawings and assembled on-site. However, during flue construction, oil and smoke leakage often occur at the joints, significantly reducing customer satisfaction. Traditionally, prefabricated flue construction utilizes pre-reserved openings larger than the flue diameter. The interface between the upper and lower flues is located at the floor slab, and the flue is supported on the floor slab using rebar. Once the flue is correctly positioned, formwork is then installed to seal the flue.

[0003] Disadvantages of traditional craftsmanship:

[0004] 1. Flue installation is not vertical: Finished flues are all flat interfaces, and the upper and lower exhaust ducts are strictly required to be vertically aligned. However, in the actual construction process, due to the heavy weight of a single exhaust pipe and dimensional deviation, it is difficult to ensure that the upper and lower pipes are installed completely vertically during the construction process. This often causes the exhaust pipe to deviate up and down. The cross-section of the polymer mortar at the joint after the deviation becomes smaller, and the sealing effect cannot be achieved;

[0005] 2. The sealing quality is difficult to control: the reserved positions of some flues are poor, and there is no blocking template inside the flue joints, making it difficult to ensure the dense pouring of polymer mortar, resulting in poor sealing effect. As time goes by, there is a risk of oil seepage and smoke leakage in the flue;

[0006] 3. Unsafe installation process: During the construction process, the load-bearing steel bars often fail to meet the requirements and the strength is not up to standard, which may cause the steel bars to fall off and cause the flue to slip, posing a huge safety hazard. Utility Model Content

[0007] In view of this, the utility model provides a socket joint device for connecting upper and lower flues, which can solve the problems of loose sealing at the flue interface, insufficient flue bearing, and easy deviation of flue installation.

[0008] The utility model solves the above problems through the following technical means:

[0009] The present invention is a socket joint device for connecting upper and lower flues, comprising a socket sleeve of a ladder-type structure for connecting the upper and lower flues, and a supporting member fixed on the floor above the lower flue for positioning the lower insertion position of the socket sleeve.

[0010] The socket sleeve includes an upper supporting section connected to the upper flue and having a net size larger than the flue size, a lower inserting section connected to the lower flue and having a net size smaller than the flue size, and a flue connecting section connected between the upper supporting section and the lower inserting section and having a net size the same as the flue size. The supporting member is sleeved on the outside of the lower inserting section and fixed to the bottom of the flue connecting section.

[0011] Preferably, an upper caulking groove is provided between the inner wall of the upper supporting section and the upper flue, and a lower caulking groove is provided between the outer wall of the flue connecting section and the supporting member.

[0012] Preferably, polymer cement mortar is used for caulking in the upper caulking groove and the lower caulking groove.

[0013] As a further improvement of the above technical solution, the end of the upper caulking groove and the end of the lower caulking groove are both doubly sealed with the upper and lower flues by means of sealant.

[0014] Preferably, the supporting member is arranged concentrically with the lower flue.

[0015] Preferably, the socket sleeve is assembled from calcium silicate boards.

[0016] Preferably, the supporting member adopts a rectangular steel frame structure assembled and welded by multiple angle steels L30*30*3.

[0017] Preferably, the short angle steel bottom plates at the connection parts of the angle steels are cut and spliced with the long angle steels, so that the multiple angle steel bottom plates constituting the supporting member are on the same horizontal plane.

[0018] Preferably, the inner cavity size of the supporting member is larger than the outer wall size of the lower inserting section. Specifically, the gap between the outer wall of the lower inserting section and the inner cavity of the supporting member is less than 5 mm.

[0019] As can be seen from the above technical solution, the socket joint device for connecting upper and lower flues of the present invention has the following beneficial effects:

[0020] 1. Convenient construction: The device is prefabricated in the factory and installed on site, with simple process, which improves the efficiency and quality of workers in installing the flue, reduces installation time and shortens the construction period;

[0021] 2. High safety: The use of this device abandons the traditional method of planting steel bars, and uses the supporting parts to support the entire device on the floor, which has high safety performance;

[0022] 3. Low cost: The process is simple and cost-effective. The quality of flue construction is controlled from the source, eliminating the need for rework of the flue in the later stage, thereby achieving the goal of energy saving, consumption reduction, cost reduction and efficiency improvement;

[0023] 4. Construction quality: The upper and lower smoke exhaust ducts are organically connected into one through the upper support and lower plug structure, and the smoke exhaust ducts are quickly aligned vertically. The supporting parts are arranged on the outside of the socket sleeve without hindering smoke exhaust and isolating it from oil smoke and corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the installation structure of the socket joint device for connecting the upper and lower flues of the present invention;

[0025] Figure 2 This is a schematic structural diagram of a socket sleeve of a socket joint device for connecting upper and lower flues of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the socket joint device for connecting upper and lower flues of the present invention when one side of the flue is installed against the wall;

[0027] Figure 4 for Figure 3 A schematic diagram of the structure of the supporting member;

[0028] Figure 5 This is a schematic diagram of the installation of the socket joint device for connecting upper and lower flues of the present invention when both sides of the flue are installed against the wall;

[0029] Figure 6 for Figure 5 Schematic diagram of the structure of the supporting parts.

[0030] like Figures 1-6 , floor slab -1, upper flue -2, lower flue -3, socket sleeve -4, upper supporting section -41, lower inserting section -42, flue connecting section -43, upper caulking groove -44, lower caulking groove -45, sealant -46, supporting member -5, angle steel -51, first extension part -52, second extension part -53, third extension part -54, fourth extension part -55, wall -6. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0033] The present invention will be described in detail below with reference to the accompanying drawings. Figures 1 to 2 As shown: the socket joint device for connecting upper and lower flues described in this embodiment includes a socket sleeve 4 of a ladder-type structure for connecting the upper and lower flues, and a supporting member 5 fixed on the floor 1 above the lower flue 3 for positioning the lower insertion position of the socket sleeve 4; the socket sleeve 4 includes an upper supporting section 41 connected to the upper flue 2 and having a net size larger than the flue size, a lower insertion section 42 connected to the lower flue 3 and having a net size smaller than the flue size, and a flue connecting section 43 connected between the upper supporting section 41 and the lower insertion section 42 and having a net size the same as the flue size. The supporting member 5 is sleeved on the outside of the lower insertion section 42 and fixed to the bottom of the flue connecting section 43.

[0034] The socket joint device for connecting the upper and lower flues described in this embodiment has the advantages of: 1. convenient construction: the device is prefabricated and installed on site in the factory, with a simple process, which improves the efficiency and quality of flue installation by workers, reduces installation time, and shortens the construction period; 2. high safety: the use of this device abandons the traditional practice of embedding reinforcement, and uses the supporting member 5 to support the entire device on the floor 1, with high safety performance; 3. low cost: the process is simple and cost-effective, and the quality of flue construction is controlled from the source, eliminating rework of the flue in the later stage, thereby achieving the purpose of energy saving, consumption reduction, cost reduction and efficiency improvement; 4. construction quality: through the upper support and lower plug structure, the upper and lower exhaust ducts are organically connected into one, and the exhaust ducts are quickly aligned vertically, and the supporting member 5 is arranged on the outside of the socket sleeve 4 without hindering smoke exhaust, isolating it from oil fume and corrosion.

[0035] As a preferred implementation scheme of this embodiment, a 10mm upper caulking groove 44 is provided between the inner wall of the upper supporting section 41 and the upper flue 2, and a 10-15mm lower caulking groove 45 is provided between the outer wall of the flue connecting section 43 and the supporting member 5. Specifically, polymer cement mortar is used for caulking in the upper caulking groove 44 and the lower caulking groove 45. Further specifically, the end of the upper caulking groove 44 and the end of the lower caulking groove 45 are doubly sealed with the upper and lower flues 3 by sealant 46, so as to eliminate the hidden dangers of oil leakage and smoke leakage in the flue in the later stage.

[0036] As a preferred implementation of this embodiment, the supporting member 5 is concentrically arranged with the lower flue 3 , providing a more precise insertion direction for the lower insertion section 42 , thereby facilitating smooth insertion of the lower insertion section 42 into the lower flue 3 .

[0037] Specifically, the socket sleeve 4 is assembled by calcium silicate boards.

[0038] As a preferred implementation scheme of this embodiment, the supporting member 5 adopts a steel frame structure assembled and welded by multiple angle steels 51L30*30*3. The short angle steel bottom plate at the connection part of the angle steel 51 is cut and spliced with the long angle steel, so that the bottom plates of the multiple angle steels 51 constituting the supporting member 5 are on the same horizontal plane, so that the socket sleeve 4 can be placed flatly on the bottom plate of the angle steel 51.

[0039] As a preferred implementation of this embodiment, the inner cavity size of the supporting member 5 is larger than the outer wall size of the lower inserting section 42. Specifically, the gap between the outer wall of the lower inserting section 42 and the inner cavity of the supporting member 5 is less than 5 mm.

[0040] When installing the socket joint device for connecting the upper and lower flues described in this embodiment, first install the supporting member 5 above the lower flue 3, and adjust to ensure that the supporting member 5 falls on the lower flue 3 on all sides and the supporting points are firmly on the floor 1, then drive expansion bolts into the reserved bolt holes to prevent overturning, so that the supporting member 5 is firm and stable, so as to facilitate the installation and positioning of the upper flue, and then insert the processed socket sleeve 4 from the inner cavity of the supporting member 5 to the lower flue 3, adjust the position according to the control line, so that the lower insert section 42 is tightly joined to the lower flue 3. At this time, the bottom of the flue connecting section 43 is placed flat on the bottom plate of the angle steel 51 of the supporting member 5. Then, the straightened flue of the upper flue 2 is slowly and vertically inserted from the upper supporting section 41 downward to the bottom of the flue connecting section 43. After quickly aligning and checking for correctness, it is temporarily fixed. Finally, the joints are reinforced, cleaned, and filled with polymer cement mortar. Glass glue is injected around the circle for double sealing to fill the gaps between the joints to prevent smoke and oil leakage in the later stage.

[0041] The structure of the supporting member 5 is affected by the position of the flue and is divided into the following two structures:

[0042] When one side of the flue is set against the wall, both ends of the angle steel 51 of the supporting member 5 against the wall extend outward to form two first extensions 52, and the two angle steels 51 perpendicular to the wall extend outward away from the wall to form second extensions 53. The first extensions 52 and the second extensions 53 are both provided with first screw holes for driving expansion bolts. Driving expansion bolts can prevent overturning and provide higher safety performance. Specifically, the length of the second extension 53 is twice that of the first extension 52. More specifically, the length of the first extension 52 is 70 mm, and the length of the second extension 53 is 140 mm.

[0043] When the flue is set against the wall on both sides, that is, when the flue is located at a corner, the two angle steels 51 of the supporting member 5 that are against the wall are assembled into a right-angle structure and extend outward to form a third extension portion 54, and one of the angle steels 51 that is not against the wall extends outward to form a fourth extension portion 55, and the third extension portion 54 and the fourth extension portion 55 are provided with second screw holes for driving expansion bolts. Driving expansion bolts can prevent overturning and has higher safety performance. Specifically, the third extension portion 54 and the fourth extension portion 55 have the same length, both of which are 140 mm.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A socket joint device for connecting upper and lower flues, characterized in that: It includes a socket sleeve of a ladder-type structure for connecting the upper and lower flues, and a supporting member fixed on the floor above the lower flue for locating the lower insertion position of the socket sleeve; The socket sleeve includes an upper supporting section connected to the upper flue and having a net size larger than the flue size, a lower inserting section connected to the lower flue and having a net size smaller than the flue size, and a flue connecting section connected between the upper supporting section and the lower inserting section and having a net size the same as the flue size. The supporting member is sleeved on the outside of the lower inserting section and fixed to the bottom of the flue connecting section.

2. The socket joint device for connecting upper and lower flues according to claim 1, characterized in that: An upper caulking groove is provided between the inner wall of the upper supporting section and the upper flue, and a lower caulking groove is provided between the outer wall of the flue connecting section and the supporting member.

3. The socket joint device for connecting upper and lower flues according to claim 2, characterized in that: Polymer cement mortar is used to caulk the upper caulking groove and the lower caulking groove.

4. The socket joint device for connecting upper and lower flues according to claim 2, characterized in that: The ends of the upper caulking groove and the lower caulking groove are both doubly sealed with the upper and lower flues by means of sealant.

5. The socket joint device for connecting upper and lower flues according to claim 1, characterized in that: The supporting member is concentrically arranged with the lower flue.

6. The socket joint device for connecting upper and lower flues according to claim 1, characterized in that: The socket sleeve is assembled by calcium silicate boards.

7. The socket joint device for connecting upper and lower flues according to claim 1, characterized in that: The supporting member adopts a rectangular steel frame structure which is assembled and welded by multiple L30*30*3 angle steels.

8. The socket joint device for connecting upper and lower flues according to claim 7, characterized in that: The short angle steel bottom plates at the connection parts of the angle steels are cut and spliced with the long angle steels, so that the multiple angle steel bottom plates constituting the supporting member are on the same horizontal plane.

9. The socket joint device for connecting upper and lower flues according to claim 8, characterized in that: The inner cavity size of the supporting member is larger than the outer wall size of the lower inserting section. Specifically, the gap between the outer wall of the lower inserting section and the inner cavity of the supporting member is less than 5 mm.

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