A connection mechanism for exhaust treatment ducts

Abstract

The utility model relates to pipe joint technology field, concretely for a kind of connecting mechanism for waste gas treatment pipeline, including connecting disc, connecting disc is installed between two waste gas treatment pipelines, the end portion of waste gas treatment pipeline is equipped with the flange that multiple bolt holes are opened, the both sides of connecting disc are all fixed with handle, the end portion of handle is fixed with screw rod, after handle is inserted bolt hole, screw rod penetrates bolt hole, rubber cover is set on the stem of screw rod, and the end of screw rod away from handle is sleeved with nut;Beneficial effects are: when installing, only need to place connecting disc between two waste gas treatment pipelines, push and squeeze two waste gas treatment pipelines to be close to connecting disc, connecting disc can complete the operation that multiple screw rods are inserted into the bolt hole of two side pipeline flanges simultaneously, without being inserted bolt one by one like traditional mode.After only need to cooperate with the installation nut and lock, can greatly reduce the construction time on site, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings, specifically a connection mechanism for waste gas treatment pipelines. Background Technology

[0002] In waste gas treatment systems, the connection of waste gas treatment pipelines is a crucial step in ensuring the normal operation of the system. Traditionally, waste gas treatment pipeline connections typically involve inserting bolts one by one and securing them with nuts. Specifically, flanges with bolt holes are installed at the ends of the two waste gas treatment pipelines to be connected. Bolts are then passed through the corresponding bolt holes on the two flanges one by one, and nuts are then fitted onto the other end of the bolts and tightened one by one to complete the pipeline connection.

[0003] However, this traditional connection method has many drawbacks. Firstly, the process of inserting bolts and tightening nuts one by one is cumbersome, requiring significant time and manpower, especially in exhaust gas treatment projects with numerous pipes and dense connection points. This significantly extends on-site construction time, impacting the overall project schedule. Secondly, exhaust gas treatment pipes may be subject to corrosion from corrosive substances in the exhaust gas and the influence of fluid pressure within the pipes, leading to wear at the pipe ends and gaps at the flange connections. Traditional connection methods struggle to effectively guarantee the sealing of these gaps, easily causing exhaust gas leaks. This not only pollutes the environment but may also harm the health of operators, while simultaneously reducing the treatment efficiency of the exhaust gas treatment system.

[0004] Furthermore, in traditional connection structures, the connection between nuts and bolts lacks effective anti-loosening measures. During the operation of waste gas treatment pipelines, factors such as equipment vibration and temperature changes can cause nuts to easily loosen from bolts, leading to loose pipeline connections. This affects the stability and reliability of the pipeline connection and may even cause safety accidents. Utility Model Content

[0005] The purpose of this invention is to provide a connection mechanism for waste gas treatment pipelines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection mechanism for waste gas treatment pipelines, including a connecting plate, which is installed between two waste gas treatment pipelines. The ends of the waste gas treatment pipelines are provided with flanges having multiple bolt holes. Both sides of the connecting plate are fixed with insert handles, and the ends of the insert handles are fixed with screws. After the insert handles are inserted into the bolt holes, the screws penetrate the bolt holes. A rubber cover is fitted on the body of the screw, and a nut is screwed onto the end of the screw away from the insert handle.

[0007] Preferably, the inner ring of the connecting disc is integrally formed with a plug tube, and the two plug tubes are respectively inserted into the exhaust gas treatment pipes on both sides.

[0008] Preferably, both sides of the connecting plate are provided with annular mounting grooves, and annular rubber gaskets are fixed inside the mounting grooves. The thickness of the rubber gaskets is greater than the depth of the mounting grooves. After the connecting plate is clamped between the two exhaust gas treatment pipes, the rubber gaskets are deformed by pressure and retract into the mounting grooves.

[0009] Preferably, the length of the insert is less than the depth of the bolt hole, and a rubber plug ring is fitted and fixed to one end of the insert connected to the connecting plate, with the rubber plug ring clamped between the insert and the bolt hole.

[0010] Preferably, one end of the rubber cover is fixed to the surface of the insert handle, and the length of the rubber cover is equal to the length of the screw. When the end of the screw is not fitted with a nut, the rubber cover wraps around the screw.

[0011] Preferably, the rubber cover has multiple slits at the end away from the plug handle. After the nut is installed at the end of the screw, the rubber cover folds outward from the multiple slits, and the nut clamps the folded rubber cover to the flange side of the end of the exhaust gas treatment pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The connection mechanism for waste gas treatment pipelines proposed in this utility model allows for simple installation. During installation, the connecting plate is placed between two waste gas treatment pipelines, and the two pipelines are pushed towards the connecting plate. The connecting plate simultaneously inserts multiple sets of bolts into the flange bolt holes on both sides of the pipelines, eliminating the need for individual bolt insertion as in traditional methods. Afterwards, only the installation nuts are needed for tightening. This significantly reduces on-site construction time and improves construction efficiency, making it particularly suitable for waste gas treatment projects with a large number of pipelines and dense connection points, effectively accelerating project progress. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 2 Sectional view of the structure at point AA;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0017] Figure 4 This is a schematic diagram of the connecting disc structure of this utility model;

[0018] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point C.

[0019] In the diagram: connecting plate 1, plug tube 101, insert groove 102, rubber gasket 103, exhaust gas treatment pipe 2, bolt hole 201, insert handle 3, rubber plug ring 301, screw 4, nut 401, rubber cover 402, and gap 403. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a connection mechanism for waste gas treatment pipelines, including a connecting plate 1, which is installed between two waste gas treatment pipelines 2. The ends of the waste gas treatment pipelines 2 are provided with flanges having multiple bolt holes 201. Both sides of the connecting plate 1 are fixed with insert handles 3, and the ends of the insert handles 3 are fixed with screw rods 4. After the insert handles 3 are inserted into the bolt holes 201, the screw rods 4 penetrate through the bolt holes 201. A rubber cover 402 is fitted on the body of the screw rods 4, and a nut 401 is screwed onto the end of the screw rods 4 away from the insert handles 3. The connecting plate 1 is placed between the two waste gas treatment pipelines 2, and the two waste gas treatment pipelines 2 are pushed closer to the connecting plate 1 until the screw rods 4 on both sides of the connecting plate 1 protrude from the bolt holes 201 on the surface of the waste gas treatment pipelines 2. At this point, the nut 401 is screwed onto the screw rod 4 and locked. This eliminates the need for inserting bolts one by one; the connecting plate 1 can simultaneously insert multiple sets of screw rods 4, requiring only the installation of the nut 401, thus reducing on-site construction time.

[0022] To ensure the airtightness of the connection between the two waste gas treatment pipes 2, the following was proposed:

[0023] The inner ring of the connecting plate 1 is integrally formed with a plug tube 101, and the two plug tubes 101 are respectively inserted into the exhaust gas treatment pipes 2 on both sides; both sides of the connecting plate 1 are provided with annular mounting grooves 102, and annular rubber gaskets 103 are fixed inside the mounting grooves 102. The thickness of the rubber gaskets 103 is greater than the depth of the mounting grooves 102. After the connecting plate 1 is clamped between the two exhaust gas treatment pipes 2, the rubber gaskets 103 are deformed by pressure and retract into the mounting grooves 102.

[0024] When the connecting plate 1 is installed between the two exhaust gas treatment pipes 2, and the nut 401 is connected to the corresponding screw 4, the plug tube 101 is inserted into the exhaust gas treatment pipe 2 to connect the two exhaust gas treatment pipes 2 and to serve as a bearing and load-bearing device. The rubber gasket 103 is clamped between the connecting plate 1 and the exhaust gas treatment pipe 2 to ensure the sealing of the two exhaust gas treatment pipes 2 after connection, and to prevent leakage from the gaps caused by wear at the ends of the exhaust gas treatment pipes 2.

[0025] To achieve the goal of installing nut 401 while preventing it from loosening, the following approach was proposed:

[0026] The length of the insert 3 is less than the depth of the bolt hole 201. A rubber plug ring 301 is fixed to one end of the insert 3 connected to the connecting plate 1. The rubber plug ring 301 is clamped between the insert 3 and the bolt hole 201. One end of the rubber cover 402 is fixed to the surface of the insert 3. The length of the rubber cover 402 is equal to the length of the screw 4. When the end of the screw 4 is not fitted with the nut 401, the rubber cover 402 wraps around the screw 4 to prevent the screw 4 from being exposed to the outside when idle and being bumped and worn, which would affect the use of the threaded connection. This makes the screw 4 and the nut 401 fit tightly together. The end of the rubber cover 402 away from the insert 3 has multiple slits 403. After the nut 401 is installed at the end of the screw 4, the rubber cover 402 folds outward from the multiple slits 403. The nut 401 clamps the folded rubber cover 402 on the flange side of the end of the exhaust gas treatment pipe 2, which acts as an elastic gasket, thereby preventing the nut 401 from falling off the screw 4.

[0027] How to use the connection mechanism for exhaust gas treatment pipelines:

[0028] Place the connecting plate 1 between the two exhaust gas treatment pipes 2, aligning the inserts 3 on both sides of the connecting plate 1 with the bolt holes 201 on the flanges at the ends of the two exhaust gas treatment pipes 2. Push the two exhaust gas treatment pipes 2 closer to the connecting plate 1, ensuring that the inserts 3 on both sides of the connecting plate 1 are accurately inserted into the corresponding bolt holes 201, until the screws 4 fixed at the ends of the inserts 3 protrude from the bolt holes 201 on the surfaces of the exhaust gas treatment pipes 2. At this time, since the length of the insert 3 is less than the depth of the bolt hole 201, the rubber plug ring 301 fixed at one end of the insert 3 connected to the connecting plate 1 will be clamped between the insert 3 and the bolt hole 201, providing a certain degree of stability and sealing assistance. As the two exhaust gas treatment pipes 2 approach the connecting plate 1, the plug tube 101 integrally formed in the inner ring of the connecting plate 1 will be inserted into the exhaust gas treatment pipes 2 on both sides, achieving initial connection between the two exhaust gas treatment pipes 2 and serving as a bearing and support. During the process of the connecting disc 1 being clamped between the two exhaust gas treatment pipes 2, the annular rubber gaskets 103 fixed in the annular mounting grooves 102 on both sides of the connecting disc 1 will contact the flanges at the ends of the exhaust gas treatment pipes 2. Since the thickness of the rubber gasket 103 is greater than the depth of the mounting groove 102, when the pipes push against the connecting disc 1, the rubber gasket 103 will be deformed under pressure and retract into the mounting groove 102, thereby ensuring the sealing of the two exhaust gas treatment pipes 2 after connection and preventing leakage from gaps caused by wear at the ends of the exhaust gas treatment pipes 2. After the screw 4 extends from the bolt hole 201, the nut 401 is fitted onto the end of the screw 4 away from the insert 3. The nut 401 is rotated to screw it onto the screw 4 and gradually tightened, completing the fixed connection between the connecting disc 1 and the two exhaust gas treatment pipes 2. When the nut 401 is not installed at the end of the screw 4, the rubber cover 402 (whose length is equal to the length of the screw 4) fixed to the surface of the insert 3 will cover the screw 4, preventing the screw 4 from being exposed to the outside and being bumped and worn when idle, thus ensuring the normal use of the threaded connection and making the screw 4 and nut 401 fit tightly together. After the nut 401 is installed at the end of the screw 4, an external force is applied to the rubber cover 402, causing it to turn outward from the multiple slots 403 opened at the end away from the insert 3. Then, the nut 401 is tightened further, so that the nut 401 clamps the outwardly turned rubber cover 402 to the flange side of the end of the exhaust gas treatment pipe 2. At this time, the rubber cover 402 acts as an elastic gasket, further enhancing the stability of the connection and preventing the nut 401 from falling off the screw 4.

[0029] By following the steps above, the connection operation of the two exhaust gas treatment pipes 2 using this connection mechanism can be completed, achieving a fast, stable, and sealed connection of the pipes.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection mechanism for exhaust gas treatment pipelines, comprising a connecting plate (1), the connecting plate (1) being installed between two exhaust gas treatment pipelines (2), wherein the ends of the exhaust gas treatment pipelines (2) are provided with flanges having multiple bolt holes (201), characterized in that: Both sides of the connecting plate (1) are fixed with a plug handle (3), and a screw rod (4) is fixed at the end of the plug handle (3). After the plug handle (3) is inserted into the bolt hole (201), the screw rod (4) passes through the bolt hole (201). A rubber cover (402) is fitted on the rod body of the screw rod (4), and a nut (401) is screwed onto the end of the screw rod (4) away from the plug handle (3).

2. The connection mechanism for a waste gas treatment pipeline according to claim 1, characterized in that: The inner ring of the connecting plate (1) is integrally formed with a plug tube (101), and the two plug tubes (101) are respectively inserted into the exhaust gas treatment pipes (2) on both sides.

3. The connection mechanism for a waste gas treatment pipeline according to claim 1, characterized in that: The connecting plate (1) has annular mounting grooves (102) on both sides. Annular rubber gaskets (103) are fixed inside the mounting grooves (102). The thickness of the rubber gaskets (103) is greater than the depth of the mounting grooves (102). After the connecting plate (1) is clamped between the two exhaust gas treatment pipes (2), the rubber gaskets (103) are deformed by pressure and retract into the mounting grooves (102).

4. The connection mechanism for a waste gas treatment pipeline according to claim 1, characterized in that: The length of the insert (3) is less than the depth of the bolt hole (201). A rubber plug ring (301) is fitted and fixed at one end of the insert (3) connected to the connecting plate (1). The rubber plug ring (301) is clamped between the insert (3) and the bolt hole (201).

5. A connection mechanism for a waste gas treatment pipeline according to claim 1, characterized in that: One end of the rubber cover (402) is fixed to the surface of the plug (3). The length of the rubber cover (402) is equal to the length of the screw (4). When the end of the screw (4) is not fitted with a nut (401), the rubber cover (402) wraps around the screw (4).

6. The connection mechanism for a waste gas treatment pipeline according to claim 1, characterized in that: The rubber cover (402) has multiple slits (403) at the end away from the plug (3). After the nut (401) is installed at the end of the screw (4), the rubber cover (402) folds outward from the multiple slits (403), and the nut (401) clamps the folded rubber cover (402) on the flange side of the end of the exhaust gas treatment pipe (2).

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