Rectangular discharge flue connecting device

Abstract

The utility model discloses a rectangular discharge flue connecting device, and relates to the technical field of smoke discharge pipeline connection. The first connecting mechanism is used for being detachably connected with the pipe wall at the bottom end of an upper pipeline; the second connecting mechanism is detachably connected with the top end pipe wall of the lower pipeline; the connecting mechanism is provided with a communicating hole, and the two ends of the connecting mechanism are connected with the first connecting mechanism and the second connecting mechanism correspondingly; the upper pipeline is communicated with the lower pipeline through the communicating hole; the problems that an existing flue connecting device needs secondary construction, supporting and connecting of a connecting pipeline are difficult to achieve, and stability is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust pipe connection, in particular to a rectangular smoke exhaust duct connection device. Background Art

[0002] Gas combustion equipment with closed furnaces, such as water heaters, boilers or some industrial furnaces, must exhaust smoke in a timely manner. The smoke exhaust duct refers to the channel for exhausting smoke generated by coal-fired stoves.

[0003] Before installation, most of the existing smoke exhaust ducts are multi-section ducts. After the multi-section ducts are transported to the use location, the two ducts are connected by connecting parts. However, the existing connecting parts have the following disadvantages:

[0004] 1. When the existing rectangular cross-section smoke (gas) duct is installed at the construction site, the common connection devices are mostly loose parts assembled on site, which have low installation efficiency, high error rate, and it is difficult to ensure air tightness.

[0005] 2. The existing connection devices are installed on site by splicing, which has low strength and limited supporting capacity for the flue, posing a major safety hazard.

[0006] 3. The existing connection device can only achieve the docking of the upper and lower smoke (gas) ducts, and cannot meet the coaxial effect of the upper and lower smoke (gas) ducts. The airtightness is poor and the smoke (gas) exhaust effect is greatly reduced.

[0007] 4. The existing connection devices require secondary on-site construction, which increases the difficulty of installation and labor costs, and the pass rate is difficult to guarantee. Utility Model Content

[0008] The utility model aims to provide a rectangular smoke exhaust duct connection device to solve the problem that the existing smoke duct connection device requires secondary construction and is difficult to support the connection pipe and has poor connection stability.

[0009] In order to solve the above problems, the utility model adopts the following technical means:

[0010] A rectangular smoke exhaust duct connection device, comprising:

[0011] A first connecting mechanism, used for detachably connecting with the bottom end wall of the upper pipeline;

[0012] A second connection mechanism is used for detachably connecting with the top wall of the lower pipe;

[0013] A connection mechanism, having a connecting hole, and two ends thereof are respectively connected to the first connection mechanism and the second connection mechanism;

[0014] The upper pipe is communicated with the lower pipe through the communication hole.

[0015] Preferably, the connection mechanism is a rectangular plate, the communication hole is formed in the middle of the rectangular plate, the first connection mechanism includes a first rectangular pipe installed on the top surface of the rectangular plate, and the second connection mechanism includes a second rectangular pipe installed on the bottom surface of the rectangular plate.

[0016] Furthermore, the inner wall of the first rectangular pipe is in close contact with the outer wall of the upper pipe, the inner wall of the second rectangular pipe is in close contact with the outer wall of the lower pipe, and the rectangular plate is located at the inner end of the first rectangular pipe or the second rectangular pipe as a positioning abutting plate.

[0017] Even further, a first positioning abutting pipe and a second positioning abutting pipe are respectively installed on the upper and lower sides of the positioning abutting plate;

[0018] The first positioning abutting pipe extends into the upper pipe, the outer wall of the first positioning abutting pipe is in sliding contact with the inner wall of the upper pipe, and the end of the upper pipe is clamped between the first positioning abutting pipe and the first rectangular pipe;

[0019] The second positioning abutting pipe extends into the lower pipe, the outer wall of the second positioning abutting pipe is in sliding contact with the inner wall of the lower pipe, and the end of the lower pipe is clamped between the second positioning abutting pipe and the second rectangular pipe.

[0020] Even further, a first positioning hole is formed on the outer wall of the first rectangular pipe, and a shielding rectangular pipe is also installed on the top surface of the positioning abutting plate. The shielding rectangular pipe is arranged in the upper pipe, and the upper pipe is arranged at a distance from the shielding rectangular pipe.

[0021] Even further, a horizontal perfusion groove is formed in the inner wall of the second rectangular pipe. The perfusion groove is open towards the inner pipe of the second rectangular pipe, and a perfusion hole is provided on the side wall of the second rectangular pipe. The perfusion hole is communicated with the perfusion groove.

[0022] Even further, the inner wall of the first rectangular pipe and the inner wall of the communication hole are on the same plane. The top surface of the rectangular plate is located on one side of the outer wall of the first rectangular pipe as a first abutting platform. The first abutting platform abuts against the end of the upper pipe, and the outer wall of the first rectangular pipe is in close contact with the inner wall of the upper pipe;

[0023] The outer wall of the second rectangular pipe and the outer edge of the rectangular plate are on the same plane. The bottom surface of the rectangular plate is located on one side of the inner wall of the second rectangular pipe as a second abutting platform. The second abutting platform abuts against the end of the lower pipe, and the inner wall of the second rectangular pipe is in close contact with the outer wall of the lower pipe.

[0024] Further, the rectangular plate includes a first plate connected to the first rectangular tube and a second plate connected to the second rectangular tube. Through holes are respectively formed in the first plate and the second plate, and the two through holes are combined to form the communication hole;

[0025] An embedding plate is installed on the bottom surface of the first plate, and a positioning block is installed on the top surface of the second plate. An embedding groove matching the embedding plate is formed on the bottom surface of the positioning block. The first plate and the second plate are snap-connected by inserting the embedding plate into the embedding groove for positioning.

[0026] During the use of the utility model, the following beneficial effects are achieved:

[0027] By fixing the first connection mechanism and the second connection mechanism to the connection mechanism, the first connection mechanism and the second connection mechanism are always kept in a coaxial and concentric state. By positioning the first connection mechanism with the upper pipeline and the second connection mechanism with the lower pipeline, the lower pipeline and the upper pipeline can be quickly connected, and a coaxial and concentric communication state can be always maintained. It is avoided that the upper pipeline and the lower pipeline are eccentric, which affects the installation stability. At the same time, after the upper pipeline is disassembled and positioned with the first connection mechanism, the connection mechanism can also be used to support the top of the bottom end of the upper pipeline, improving the stability of the upper pipeline and the lower pipeline in the vertical installation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the utility model.

[0029] Figure 2 It is a schematic cross-sectional structural diagram of the utility model.

[0030] Figure 3 It is a schematic structural diagram of an embodiment of the utility model.

[0031] Figure 4 For Figure 3 the cross-sectional structural diagram.

[0032] Figure 5 It is a schematic structural diagram of another embodiment of the utility model.

[0033] Figure 6 For Figure 5 the cross-sectional structural diagram.

[0034] Among them, 1 - the first connecting mechanism, 2 - the second connecting mechanism, 3 - the connecting mechanism, 4 - the communication hole, 5 - the rectangular plate, 6 - the first rectangular pipe, 7 - the second rectangular pipe, 8 - the positioning abutting plate, 9 - the first positioning abutting pipe, 10 - the second positioning abutting pipe, 11 - the first positioning hole, 12 - the shielding rectangular pipe, 13 - the pouring groove, 14 - the pouring hole, 15 - the first abutting platform, 16 - the second abutting platform, 17 - the first plate, 18 - the second plate, 19 - the through hole, 20 - the embedded plate, 21 - the positioning block, 22 - the embedded groove. Detailed implementation manners

[0035] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0038] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, and does 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 of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example 1

[0042] Please refer to Figure 1 and Figure 2 As shown, a rectangular smoke exhaust duct connection device comprises:

[0043] The first connecting mechanism 1 is used for detachably connecting with the bottom wall of the upper pipeline;

[0044] The second connecting mechanism 2 is used for detachably connecting with the top wall of the lower pipe;

[0045] The connecting mechanism 3 is configured with a connecting hole 4, and its two ends are respectively connected to the first connecting mechanism 1 and the second connecting mechanism 2;

[0046] The upper pipe is communicated with the lower pipe through the communicating hole 4 .

[0047] Among them, the connecting mechanism 3 is a rectangular plate 5, the connecting hole 4 is constructed in the middle of the rectangular plate 5, the first connecting mechanism 1 includes a first rectangular tube 6 installed on the top surface of the rectangular plate 5, and the second connecting mechanism 2 includes a second rectangular tube 7 installed on the bottom surface of the rectangular plate 5.

[0048] Specifically, the inner wall of the first rectangular tube 6 is in contact with the outer wall of the upper tube, the inner wall of the second rectangular tube 7 is in contact with the outer wall of the lower tube, and the rectangular plate 5 is located at the inner end of the first rectangular tube 6 or the second rectangular tube 7 as a positioning abutment plate 8.

[0049] In this way, the positioning abutment plate 8 is used to abut the upper pipe and the lower pipe respectively, thereby improving the installation stability of the upper pipe and the lower pipe.

[0050] Furthermore, the first positioning abutment tube 9 and the second positioning abutment tube 10 are respectively installed on the upper and lower sides of the positioning abutment plate 8;

[0051] The first positioning abutment tube 9 extends into the upper pipe, the outer wall of the first positioning abutment tube 9 slides against the inner wall of the upper pipe, and the end of the upper pipe is clamped between the first positioning abutment tube 9 and the first rectangular tube 6;

[0052] Moreover, the second positioning abutting pipe 10 extends into the lower pipe, the outer wall of the second positioning abutting pipe 10 is in sliding abutment with the inner wall of the lower pipe, and the end of the lower pipe is clamped between the second positioning abutting pipe 10 and the second rectangular pipe 7.

[0053] In this way, the end of the upper pipe is clamped and abutted between the first positioning abutting pipe 9 and the first rectangular pipe 6, and the end of the lower pipe is clamped and abutted between the second positioning abutting pipe 10 and the second rectangular pipe 7. Thus, by using the clamping positioning form, the combination of the upper pipe and the lower pipe with the first connecting mechanism 1 and the second connecting mechanism 2 is made more stable.

[0054] Furthermore, a first positioning hole 11 is formed on the outer wall of the first rectangular pipe 6, and a shielding rectangular pipe 12 is further installed on the top surface of the positioning abutting plate 8. The shielding rectangular pipe 12 is arranged inside the upper pipe, and the upper pipe is arranged at a distance from the shielding rectangular pipe 12.

[0055] In this way, bolts can be installed in the first positioning hole 11 to stably connect the upper pipe and the first rectangular pipe 6 by means of the bolts. The shielding rectangular pipe 12 arranged at a distance from the upper pipe can collect the dust generated during the process of drilling holes in the upper pipe in the space formed between the inner wall of the shielding rectangular pipe 12 and the upper pipe, avoiding direct falling and affecting the environment during the installation process by scattering on the ground.

[0056] Meanwhile, more optimally, a horizontal perfusion groove 13 is formed on the inner wall of the second rectangular pipe 7. The perfusion groove 13 is open towards the inner pipe of the second rectangular pipe 7, and a perfusion hole 14 is formed on the side wall of the second rectangular pipe 7. The perfusion hole 14 is communicated with the perfusion groove 13.

[0057] In this way, after the lower pipe is installed with the second rectangular pipe 7, fixing sealant can be injected into the perfusion groove 13 through the perfusion hole 14 to improve the installation stability and airtightness between the lower pipe and the second rectangular pipe 7 by means of the fixing sealant.

[0058] In addition, please also combine Figure 5 and Figure 6 As shown, for the rectangular plate 5, the rectangular plate 5 can also be set in a detachable mode to avoid overall installation. Specifically, the rectangular plate 5 includes a first plate 17 connected to the first rectangular pipe 6 and a second plate 18 connected to the second rectangular pipe 7. Through holes 19 are respectively formed on the first plate 17 and the second plate 18, and the two through holes 19 form the communication hole 4 in combination.

[0059] An embedded plate 20 is installed on the bottom surface of the first plate 17, and a positioning block 21 is installed on the top surface of the second plate 18. The bottom surface of the positioning block 21 is constructed with an embedded groove 22 matching the embedded plate 20. The first plate 17 and the second plate 18 are positioned and inserted into the embedded groove 22 through the embedded plate 20 to be snap-connected.

[0060] In this way, the first plate 17 can be installed and positioned with the upper pipe, and then the second plate 18 can be installed and positioned with the lower pipe. Then, the first plate 17 and the second plate 18 can be fixed by snap-fit ​​connection, thereby completing the connection between the upper pipe and the lower pipe.

[0061] Example 2

[0062] Please combine Figure 3 and Figure 4 As shown, a rectangular smoke exhaust duct connection device comprises:

[0063] The first connecting mechanism 1 is used for detachably connecting with the bottom wall of the upper pipeline;

[0064] The second connecting mechanism 2 is used for detachably connecting with the top wall of the lower pipe;

[0065] The connecting mechanism 3 is configured with a connecting hole 4, and its two ends are respectively connected to the first connecting mechanism 1 and the second connecting mechanism 2;

[0066] The upper pipe is communicated with the lower pipe through the communicating hole 4 .

[0067] Among them, the connecting mechanism 3 is a rectangular plate 5, the connecting hole 4 is constructed in the middle of the rectangular plate 5, the first connecting mechanism 1 includes a first rectangular tube 6 installed on the top surface of the rectangular plate 5, and the second connecting mechanism 2 includes a second rectangular tube 7 installed on the bottom surface of the rectangular plate 5.

[0068] Specifically, the inner wall of the first rectangular tube 6 and the inner wall of the communicating hole 4 are in the same plane, the top surface of the rectangular plate 5 is located on one side of the outer wall of the first rectangular tube 6 as a first top connection platform 15, the first top connection platform 15 abuts against the end of the upper pipe, and the outer wall of the first rectangular tube 6 fits against the inner wall of the upper pipe;

[0069] The outer wall of the second rectangular tube 7 and the outer edge of the rectangular plate 5 are located in the same plane, and the bottom surface of the rectangular plate 5 is located on one side of the inner wall of the second rectangular tube 7 as a second top connecting platform 16, and the second top connecting platform 16 abuts against the end of the lower pipe, and the inner wall of the second rectangular tube 7 fits with the outer wall of the lower pipe.

[0070] In this way, the first rectangular pipe 6, the rectangular plate 5, and the second rectangular plate 5 can form an S-shaped pattern in the vertical cross-section. The first rectangular pipe 6 is inserted into the upper pipe, and the bottom end of the upper pipe is abutted by the first abutting platform 15. The first rectangular pipe 6 ensures the radial stability of the upper pipe, and the rectangular plate 5 improves the support stability of the upper pipe in the axial direction. For the lower pipe, the lower pipe is inserted into the second rectangular pipe 7, and the second rectangular pipe 7 is used to stabilize the radial direction of the lower pipe, and the second abutting platform 16 is used to apply axial abutting stability to the top end of the lower pipe.

[0071] In this way, it is possible to provide good axial and radial stability for the upper pipe and the lower pipe respectively according to the different requirements of the upper pipe and the lower pipe, and improve the connection stability between the upper pipe and the lower pipe.

[0072] In addition, please also combine Figure 5 and Figure 6 As shown, for the rectangular plate 5, it is also possible to avoid overall installation by setting the rectangular plate 5 in a detachable mode. Specifically, the rectangular plate 5 includes a first plate 17 connected to the first rectangular pipe 6 and a second plate 18 connected to the second rectangular pipe 7. Through holes 19 are respectively formed on the first plate 17 and the second plate 18, and the two through holes 19 are combined to form the communication hole 4;

[0073] An embedded plate 20 is installed on the bottom surface of the first plate 17, a positioning block 21 is installed on the top surface of the second plate 18, and an embedded groove 22 matching the embedded plate 20 is formed on the bottom surface of the positioning block 21. The first plate 17 and the second plate 18 are detachably connected by inserting the embedded plate 20 into the embedded groove 22 for positioning.

[0074] In this way, after the first plate 17 is installed and positioned with the upper pipe respectively, the second plate 18 can be installed and positioned with the lower pipe, and then the first plate 17 and the second plate 18 can be clamped and fixed by means of clamping connection, so as to complete the connection between the upper pipe and the lower pipe.

[0075] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rectangular smoke exhaust duct connection device, characterized in that, include: A first connection mechanism (1) is used for being detachably connected to the bottom end wall of the upper pipeline; A second connection mechanism (2) is used for being detachably connected to the top end wall of the lower pipe; The connection mechanism (3) is provided with a communication hole (4), and two ends thereof are respectively connected to the first connection mechanism (1) and the second connection mechanism (2); The upper pipe is connected to the lower pipe via the connecting hole (4).

2. The rectangular smoke exhaust duct connection device according to claim 1, characterized in that, The connection mechanism (3) is a rectangular plate (5), the communication hole (4) is constructed in the middle of the rectangular plate (5), the first connection mechanism (1) comprises a first rectangular tube (6) installed on the top surface of the rectangular plate (5), and the second connection mechanism (2) comprises a second rectangular tube (7) installed on the bottom surface of the rectangular plate (5).

3. The rectangular smoke exhaust duct connecting device according to claim 2, characterized in that, The inner wall of the first rectangular tube (6) is fitted and abutted against the outer wall of the upper tube, and the inner wall of the second rectangular tube (7) is fitted and abutted against the outer wall of the lower tube. The rectangular plate (5) is located at the inner end of the first rectangular tube (6) or the second rectangular tube (7) as a positioning abutment plate (8).

4. The rectangular smoke exhaust duct connection device according to claim 3, characterized in that, A first positioning abutment tube (9) and a second positioning abutment tube (10) are respectively installed on the upper and lower sides of the positioning abutment plate (8); The first positioning abutment tube (9) extends into the upper pipe, the outer wall of the first positioning abutment tube (9) is in sliding abutment with the inner wall of the upper pipe, and the end of the upper pipe is clamped between the first positioning abutment tube (9) and the first rectangular tube (6); The second positioning abutment tube (10) extends into the lower pipe, the outer wall of the second positioning abutment tube (10) is in sliding abutment with the inner wall of the lower pipe, and the end of the lower pipe is clamped between the second positioning abutment tube (10) and the second rectangular tube (7).

5. The rectangular smoke exhaust duct connecting device according to claim 3 or 4, characterized in that, The outer wall of the first rectangular tube (6) is configured with a first positioning hole (11), and the top surface of the positioning abutment plate (8) is also provided with a shielding rectangular tube (12), the shielding rectangular tube (12) being arranged in the upper pipe, and the upper pipe and the shielding rectangular tube (12) being arranged apart.

6. A rectangular smoke exhaust duct connection device according to claim 3 or 4, characterized in that, The inner wall of the second rectangular tube (7) is configured with a horizontal pouring groove (13), the pouring groove (13) being open toward the inner tube of the second rectangular tube (7), and the side wall of the second rectangular tube (7) is provided with a pouring hole (14), the pouring hole (14) being in communication with the pouring groove (13).

7. A rectangular smoke exhaust duct connection device according to claim 2, characterized in that, The inner wall of the first rectangular tube (6) and the inner wall of the communicating hole (4) are in the same plane, the top surface of the rectangular plate (5) is located on one side of the outer wall of the first rectangular tube (6) as a first top connection platform (15), the first top connection platform (15) is in contact with the end of the upper pipe, and the outer wall of the first rectangular tube (6) is in contact with the inner wall of the upper pipe; The outer wall of the second rectangular tube (7) and the outer edge of the rectangular plate (5) are located in the same plane, the bottom surface of the rectangular plate (5) is located on one side of the inner wall of the second rectangular tube (7) as a second top connection platform (16), the second top connection platform (16) is in contact with the end of the lower pipe, and the inner wall of the second rectangular tube (7) is in contact with the outer wall of the lower pipe.

8. A rectangular smoke exhaust duct connection device according to claim 2, 3, 4 or 7, characterized in that The rectangular plate (5) includes a first plate (17) connected to the first rectangular tube (6) and a second plate (18) connected to the second rectangular tube (7). Through holes (19) are respectively formed in the first plate (17) and the second plate (18), and the two through holes (19) are combined to form the communication hole (4). An embedding plate (20) is installed on the bottom surface of the first plate (17), and a positioning block (21) is installed on the top surface of the second plate (18). An embedding groove (22) matching the embedding plate (20) is formed on the bottom surface of the positioning block (21). The first plate (17) and the second plate (18) are snap-connected by positioning and inserting the embedding plate (20) into the embedding groove (22).

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