Metal connecting piece for smoke exhaust flue

Abstract

The utility model relates to the field of metal connecting pieces, and discloses a smoke exhaust flue metal connecting piece which comprises two wall bodies which are symmetrically arranged, a plurality of smoke exhaust pipelines are directly stacked on the two wall bodies up and down, and connecting components are symmetrically installed on one sides, close to the joint of the two smoke exhaust pipelines, of the wall bodies. A plurality of fixing grooves are formed in the positions, close to the upper end and the lower end of the connecting component, of one side of the wall, expansion pipes are inserted into the fixing grooves, limiting clamping plates are installed at the positions, close to the fixing grooves, of the bottom and the top of one side of the connecting component, and one sides of the limiting clamping plates extend into the expansion pipes to be in threaded connection with expansion bolts. The limiting clamping plates are matched with the limiting bolts to be fixed to the connecting component, then the effect that the connecting component is fixedly installed on the wall conveniently is achieved, the overall firmness of installation of the connecting component is improved, and the problem that the connecting component drives the multiple expansion bolts to be loosened under the pressure effect of the smoke exhaust pipeline is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metal connectors, in particular to a metal connector for smoke exhaust ducts. BACKGROUND

[0002] The smoke exhaust duct is an important part of the building fire safety system, mainly used for effectively removing smoke and harmful gases when a fire occurs. The smoke exhaust duct is generally effectively combined in a vertical or horizontal position during installation to save space and improve the efficiency of smoke exhaust.

[0003] A connector is provided between the combined smoke exhaust ducts to support the upper smoke exhaust duct. However, the connector is generally fixed to the wall by expansion bolts. After a certain period of use, the connector may become loose at the joint between the expansion bolt and the wall under the weight pressure of the smoke exhaust duct. Since multiple expansion bolts are directly connected to the connector, the loose connector may cause other expansion bolts to become loose, thereby affecting the overall stability of the connector after connection to the wall and the overall support effect of the smoke exhaust duct.

[0004] In view of the above related technology, the inventors believe that the connector is prone to loosening under pressure when supporting the smoke exhaust duct. Therefore, a metal connector for smoke exhaust ducts is proposed to solve the above problems. CONTENT OF THE INVENTION

[0005] To solve the problem of the connector being prone to loosening under pressure when supporting the smoke exhaust duct, the present application provides a metal connector for smoke exhaust ducts.

[0006] The metal connector for smoke exhaust ducts provided by the present application adopts the following technical solution:

[0007] A metal connector for smoke exhaust ducts includes two symmetrical walls, a plurality of smoke exhaust ducts stacked directly on top of each other between the two walls, a connecting member symmetrically installed on one side of the wall near the junction of the two smoke exhaust ducts, a plurality of fixing slots formed on one side of the wall near the upper and lower ends of the connecting member, an expansion pipe inserted into the fixing slot, a limiting clamping plate installed on the bottom and top of one side of the connecting member near the fixing slot, an expansion bolt threadedly connected to the inside of the expansion pipe on one side of the limiting clamping plate, and a connecting assembly provided on the outer surface of the limiting clamping plate for fixing the limiting clamping plate to the connecting member.

[0008] Preferably, the connecting assembly comprises a second through hole, the second through hole is arranged at one end of the limiting plate, the mounting recess is arranged at the top and bottom of one side of the connecting member, the threaded hole is arranged at the corresponding position of one side of the mounting recess and the second through hole, and the limiting bolt is arranged in the threaded hole through the second through hole.

[0009] Preferably, the connecting member is provided with a fixing plate at the middle of the front and rear ends, the first through hole is arranged at the middle of one side of the fixing plate, the limiting column is arranged at the fixing plate of the outer surface of the wall, the external thread is arranged at the side of the outer surface of the limiting column, and the fastening nut is arranged at the fixing plate of the outer surface of the limiting column.

[0010] Preferably, the outer diameter of the limiting column is smaller than the inner diameter of the first through hole, and the first through hole and the limiting column are coupled with each other.

[0011] Preferably, the end of the limiting plate is arranged in the mounting recess, and the limiting plate and the mounting recess are embedded with each other.

[0012] In summary, the application has the following beneficial technical effects:

[0013] By arranging the connecting member between the wall and the smoke exhaust pipe, the settlement of the smoke exhaust pipe after installation is prevented, the fixing plate is sleeved on the outer surface of the limiting column, the connecting member is fixed on the outer surface of the wall by rotating the fastening nut, the limiting plate is fixed on the outer surface of the wall by the expansion bolt, the limiting plate is clamped in the mounting recess, and the limiting plate and the mounting recess are fixed with each other by the limiting bolt; compared with the prior art, the application has the effect of fixing the connecting member on the wall, improves the overall firmness of the connecting member installation, solves the problem that the connecting member drives the expansion bolts to loosen under the pressure of the smoke exhaust pipe, and improves the overall support effect of the connecting member on the smoke exhaust pipe. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the application embodiment;

[0015] Figure 2 is a schematic diagram of the structure of the connecting member in the application embodiment;

[0016] Figure 3 is a schematic diagram of the structure of the expansion pipe in the application embodiment;

[0017] Figure 4 is a schematic diagram of the structure of the limiting plate in the application embodiment;

[0018] Figure 5 is a schematic diagram of the structure of the limiting plate in the application embodiment Figure 2 is a schematic diagram of the structure of the limiting plate in the application embodiment

[0019] Explanation of reference signs: 1, wall body; 2, smoke exhaust duct; 3, connecting member; 4, fixing plate; 5, No. 1 through hole; 6, limiting column; 7, fastening nut; 8, fixing groove; 9, expansion pipe; 10, limiting clamping plate; 11, expansion bolt; 12, mounting groove; 13, No. 2 through hole; 14, limiting bolt. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0021] The embodiments of the present application disclose a smoke exhaust flue metal connecting piece. Figures 1-5 A smoke exhaust flue metal connecting piece, comprising two wall bodies 1 arranged symmetrically, a plurality of smoke exhaust ducts 2 are directly stacked up and down between the two wall bodies 1, a connecting member 3 is symmetrically installed on one side of the wall body 1 close to the intersection of the two smoke exhaust ducts 2, concrete mortar is filled in the gap between the adjacent two smoke exhaust ducts 2, the connection between the adjacent two smoke exhaust ducts 2 is sealed by the concrete mortar, the smoke is sealed and transported in the smoke exhaust duct 2, a plurality of fixing grooves 8 are formed on one side of the wall body 1 close to the upper and lower ends of the connecting member 3, expansion pipes 9 are inserted into the fixing grooves 8, limiting clamping plates 10 are installed on the bottom and top of one side of the connecting member 3 close to the fixing grooves 8, expansion bolts 11 are threadedly connected to the inside of the expansion pipes 9 with one side of the limiting clamping plates 10 extending into the expansion pipes 9, and connecting assemblies are further arranged on the outer surfaces of the limiting clamping plates 10 for fixing the limiting clamping plates 10 on the connecting member 3.

[0022] By installing the connecting member 3 between the adjacent two smoke exhaust ducts 2, inserting and fixing the expansion pipes 9 into the fixing grooves 8, clamping the limiting clamping plates 10 in the mounting grooves 12, and threadedly connecting the expansion bolts 11 in the expansion pipes 9 through the limiting clamping plates 10, the limiting clamping plates 10 are fixed on the outer surface of the wall body 1, and the limiting and fixing effect of the limiting clamping plates 10 on the connecting member 3 is realized.

[0023] Referring to Figure 2 and Figure 5 The connecting assembly comprises a No. 2 through hole 13, the No. 2 through hole 13 is parallelly arranged on one end of the limiting clamping plate 10, mounting grooves 12 are formed on the bottom and top of one side of the connecting member 3, threaded holes are formed in the mounting grooves 12 at positions corresponding to the No. 2 through holes 13, limiting bolts 14 are installed in the threaded holes with one side of the limiting clamping plates 10 penetrating through the No. 2 through holes 13, one end of the limiting clamping plate 10 is located in the mounting groove 12, and the limiting clamping plate 10 and the mounting groove 12 are embedded in each other.

[0024] By making the limiting batten 10 fix the connecting component 3 on the outer surface of the wall body 1, rotating the limiting bolt 14 to be screwed in the connecting component 3 through the second through hole 13, and then making the limiting bolt 14 fix the limiting batten 10 and the mounting groove 12 to each other, the mutual fixing effect between the limiting batten 10 and the connecting component 3 is embodied.

[0025] With reference to Figure 3 and Figure 4 , the middle part of the front and rear ends of the connecting component 3 is welded with the fixed plate 4, the middle part of one side of the fixed plate 4 is provided with the first through hole 5, the outer surface of the wall body 1 close to the fixed plate 4 is fixedly installed with the limiting column 6, the outer surface of one side of the limiting column 6 is provided with external threads, the outer surface of the limiting column 6 is screwed with the fastening nut 7 on one side of the fixed plate 4, the outer diameter of the limiting column 6 is smaller than the inner diameter of the first through hole 5, and the first through hole 5 and the limiting column 6 are coupled to each other.

[0026] By making the fixed plate 4 be sleeved on the outer surface of the limiting column 6, rotating the fastening nut 7 to move along the outer surface of the limiting column 6, making the fastening nut 7 push the connecting component 3 to abut and be fixed on the outer surface of the wall body 1, and then making the connecting component 3 tightly adhere to the outer surface of the wall body 1, the installation and fixing effect of the limiting column 6 on the connecting component 3 in cooperation with the fastening nut 7 is embodied.

[0027] The implementation principle of the smoke exhaust flue metal connecting piece is that: by installing the connecting component 3 between the wall body 1 and the smoke exhaust pipe 2, preventing the smoke exhaust pipe 2 from sinking after installation, making the fixed plate 4 be sleeved on the outer surface of the limiting column 6, rotating the fastening nut 7 to move along the outer surface of the limiting column 6, making the fastening nut 7 push the connecting component 3 to abut and be fixed on the outer surface of the wall body 1, simultaneously inserting and fixing the expansion pipe 9 in the fixed groove 8, making the limiting batten 10 be clamped in the mounting groove 12, rotating the expansion bolt 11 to be screwed in the expansion pipe 9 through the limiting batten 10, and then fixing the limiting batten 10 on the outer surface of the wall body 1, making the limiting batten 10 fix the connecting component 3 on the outer surface of the wall body 1, and rotating the limiting bolt 14 to be screwed in the connecting component 3 through the second through hole 13, and then making the limiting bolt 14 fix the limiting batten 10 and the mounting groove 12 to each other; compared with the prior art, the scheme has the effect that the connecting component 3 is conveniently fixed and installed on the wall body 1, improves the overall firmness of the installation of the connecting component 3, solves the problem that the connecting component 3 is loosened under the pressure of the smoke exhaust pipe 2, and improves the overall support effect of the connecting component 3 on the smoke exhaust pipe 2.

[0028] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0029] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0030] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

[0031] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.

Claims

1. A metal connecting piece for flue gas ducts, comprising two wall bodies (1) arranged symmetrically, a plurality of flue gas ducts (2) are placed in direct up-down stacking between the two wall bodies (1), a connecting member (3) is symmetrically installed on one side of the wall body (1) close to the intersection of the two flue gas ducts (2), characterized in that: The wall body (1) is provided with a plurality of fixing grooves (8) near the upper and lower ends of the connecting member (3) on one side, expansion pipes (9) are inserted into the fixing grooves (8), limiting clamping plates (10) are installed near the fixing grooves (8) on the bottom and top of the connecting member (3), expansion bolts (11) are screwed into the expansion pipes (9) on one side of the limiting clamping plates (10), and connecting assemblies are further arranged on the outer surfaces of the limiting clamping plates (10) to fix the limiting clamping plates (10) on the connecting member (3).

2. A flue gas vent metal connector according to claim 1, wherein: The connecting assembly comprises No. 2 through holes (13) arranged in parallel on one end of the limiting clamping plate (10), the bottom and top of the connecting member (3) are provided with mounting grooves (12), the mounting grooves (12) are provided with threaded holes at positions corresponding to the No. 2 through holes (13) on one side, and limiting bolts (14) are installed in the threaded holes by penetrating the No. 2 through holes (13) on one side of the limiting clamping plate (10).

3. A flue gas vent metal connector according to claim 1, wherein: The connecting member (3) is welded with a fixing plate (4) at the middle of the front and rear ends, the fixing plate (4) is provided with a No. 1 through hole (5) at the middle on one side, a limiting column (6) is fixedly installed on the outer surface of the wall body (1) near the fixing plate (4), an outer thread is arranged on one side of the outer surface of the limiting column (6), and a fastening nut (7) is screwed on one side of the limiting column (6) on the outer surface of the fixing plate (4).

4. A flue gas connector of claim 3, wherein: The outer diameter of the limiting column (6) is smaller than the inner diameter of the No. 1 through hole (5), and the No. 1 through hole (5) and the limiting column (6) are coupled with each other.

5. A flue gas connector according to claim 2, wherein: One end of the limiting clamping plate (10) is arranged in the mounting groove (12), and the limiting clamping plate (10) and the mounting groove (12) are embedded with each other.

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