A trolley furnace pipeline connecting structure

Abstract

The utility model discloses a trolley furnace pipeline connecting structure, include: pipeline connecting seat, fixed in the top of trolley furnace, bearing seat, coaxial solid and located at the upper end surface of pipeline connecting seat, inner lining guide pipe, extend upwards along the central axis of bearing seat, a plurality of sets of convergence arc plate, interval arrangement around the outer circumferential side of inner lining guide pipe, and with inner lining guide pipe jointly define annular plug -in area, and the plug -in area is used for the outer guide pipe along the axial insertion, fixed sleeve, the outer circumferential side of bearing seat is covered and is cooperated with its screw thread, and fixed sleeve can rotate in the axial, to synchronous radial compression all convergence arc plate, to make convergence arc plate will have inserted the outer guide pipe and tightly hold the outer wall of inner lining guide pipe, realize the quick sealing connection of outer guide pipe and pipeline connecting seat. The utility model discloses can rotate in and compress convergence arc plate quickly, and the tedious operation of screwing bolt has been saved little by little, greatly improves the dismounting efficiency, and reduces maintenance time and manual labor intensity.

Description

Technical Field

[0001] This utility model relates to a bogie furnace pipeline connection structure. Background Technology

[0002] During the heat treatment process, the bogie furnace needs to be connected to an external gas source or flue gas system through a top pipeline in order to achieve controlled atmosphere input or high-temperature flue gas discharge.

[0003] Most existing connection methods use flange bolts, which rely on a ring of evenly distributed bolts to apply axial clamping force, causing the graphite gasket between the flange end faces to compress and deform, thus achieving a seal.

[0004] Assembly and disassembly are time-consuming, and each maintenance requires tightening each bolt individually, which is laborious and inefficient. Therefore, a new bogie furnace pipeline connection structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a bogie furnace pipeline connection structure to solve the problems mentioned in the background art, which are that most of the existing connection methods use flange bolt connections, which are time-consuming to install and remove, and require each bolt to be tightened one by one for each maintenance, which is laborious, time-consuming and inefficient.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bogie furnace pipeline connection structure, comprising: Pipeline connector, fixed to the top of the bogie furnace; A bearing seat is coaxially fixed to the upper end face of the pipeline connection seat; The inner lining conduit extends upward along the central axis of the support seat; Multiple sets of converging arc plates are arranged at intervals around the outer periphery of the inner liner tube, and together with the inner liner tube, they define an annular insertion area, which is used for the axial insertion of the outer tube. A fixing sleeve is fitted onto the outer periphery of the bearing seat and threaded thereon. The fixing sleeve can be screwed in axially to simultaneously radially press all the converging arc plates, thereby causing the converging arc plates to clamp the inserted outer conduit to the outer wall of the inner lining conduit, achieving a quick and sealed connection between the outer conduit and the pipeline connection seat.

[0007] Preferably, the outer periphery of the fixed sleeve is provided with several handles for applying rotational torque.

[0008] Preferably, the outer circumference of the bearing seat is provided with an external thread, and the inner circumference of the fixing sleeve is provided with a matching internal thread, and the fixing sleeve is axially screwed in through the internal thread.

[0009] Preferably, the tail end of the fixed sleeve covers the entire outer wall of the converging arc plate at the end of the screwing in, so as to form a radial clamping force.

[0010] Preferably, the inner wall of the converging arc plate is provided with an elastic gasket, the upper section of which is an outwardly expanding conical surface and the lower section is an annular sealing surface, which is used to simultaneously achieve radial sealing and axial limiting under the clamped state.

[0011] Preferably, the insertion end of the outer conduit is fixedly connected to a connecting sleeve, the inner diameter of which matches the outer diameter of the inner liner conduit to establish a pre-position after insertion.

[0012] Preferably, the port of the connecting cylinder is provided with an inlet chamfer to reduce insertion resistance.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Compared with traditional flange bolt connections, this utility model's bogie furnace pipeline connection structure, through the design of a fixed sleeve, allows for quick screwing in and tightening of the constriction arc plate, eliminating the tedious operation of tightening each bolt individually. Operators only need to rotate the fixed sleeve to complete the rapid sealing connection of the pipeline, greatly improving disassembly and assembly efficiency and reducing maintenance time and labor intensity.

[0014] Through the combination of the constricting arc plate and the elastic gasket, the outer conduit and the inner liner conduit can be firmly clamped together in a short time, ensuring a fast and reliable seal. This structure can effectively avoid problems such as poor sealing and air leakage that may occur in traditional flange connection methods.

[0015] The tight fit between the constricting arc plate and the inner and outer conduits, along with the radial sealing function of the elastic gasket, ensures the sealing of the connection, preventing gas leakage and withstanding greater operating pressure, thus improving the safety and reliability of the connection.

[0016] This connection structure, through the design of the connecting sleeve and the inlet chamfer, ensures precise alignment between the outer conduit and the inner liner conduit during insertion, reducing insertion resistance and ensuring connection accuracy. This makes the connection structure more adaptable, better able to handle different pipe specifications or complex working environments.

[0017] The combination of external and internal threads makes the operation smooth and stable, allowing users to easily control the screwing and tightening process, thus improving the convenience of operation and user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the fixed sleeve structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the converging arc plate structure according to an embodiment of the present utility model; Figure 4 This is a structural disassembly diagram of an embodiment of the present utility model; Figure 5 This is a cross-sectional structural diagram of an embodiment of the present utility model; Figure 6 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model.

[0019] In the diagram: 1. Pipe connection seat; 2. Bearing seat; 21. External thread; 3. Inner liner; 4. Constriction arc plate; 5. Fixing sleeve; 51. Turning handle; 52. Internal thread; 6. Outer liner; 61. Connecting sleeve; 62. Chamfer; 7. Elastic gasket; 71. Outwardly expanding conical surface; 72. Annular sealing surface. Detailed Implementation

[0020] To address the problems of time-consuming assembly and disassembly of existing flange bolt connections, which require individual bolt tightening for each maintenance check and are inefficient, this utility model provides a bogie furnace pipeline connection structure. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Please see Figure 1-6 This utility model provides a bogie furnace pipeline connection structure, including: Pipe connection seat 1 is fixed to the top of the bogie furnace; The bearing seat 2 is coaxially fixed to the upper end face of the pipeline connection seat 1; the outer circumference of the bearing seat 2 is provided with an external thread 21, and the inner circumference of the fixing sleeve 5 is provided with a matching internal thread 52, and the fixing sleeve 5 is axially screwed in through the internal thread 52.

[0022] The inner lining conduit 3 extends upward along the central axis of the support seat 2; Multiple sets of converging arc plates 4 are arranged at intervals around the outer periphery of the inner lining conduit 3, and together with the inner lining conduit 3, they define an annular insertion area. The insertion area is used for the outer conduit 6 to be inserted axially. The inner wall of the converging arc plate 4 is provided with an elastic gasket 7. The upper section of the gasket is an outwardly expanding conical surface 71, and the lower section is an annular sealing surface 72, which is used to achieve radial sealing and axial limiting at the same time under the clamping state.

[0023] A fixing sleeve 5 is fitted onto the outer periphery of the bearing seat 2 and threaded thereon. The fixing sleeve 5 can be screwed in axially to simultaneously radially compress all the converging arc plates 4, thereby causing the converging arc plates 4 to clamp the inserted outer conduit 6 against the outer wall of the inner lining conduit 3, achieving a quick and sealed connection between the outer conduit 6 and the pipeline connection seat 1. Several handles 51 are provided on the outer periphery of the fixing sleeve 5 for applying rotational torque. At the end of the screwing process, the tail end of the fixing sleeve 5 simultaneously covers the outer wall of all the converging arc plates 4 to form a radial clamping force.

[0024] The insertion end of the outer conduit 6 is fixedly connected to a connecting sleeve 61. The inner diameter of the connecting sleeve 61 matches the outer diameter of the inner liner conduit 3 to establish a pre-position after insertion. The port of the connecting sleeve 61 is provided with an inlet chamfer 62 to reduce insertion resistance.

[0025] The working principle of the bogie furnace pipeline connection structure provided by this utility model is as follows: When connecting the pipeline, hold the outer guide tube 6, align the connecting sleeve 61 with the upper port of the inner lining guide tube 3, and use the cooperation between the connecting sleeve 61 and the inner lining guide tube 3 and the guiding effect of the guide chamfer 62 to insert the outer guide tube 6 into the insertion area between the inner lining guide tube 3 and the converging arc plate 4 through the connecting sleeve 61. During insertion, the upper outwardly expanding conical surface 71 of the elastic gasket 7 first contacts the inner wall of the connecting cylinder 61. The connecting cylinder 61 then follows the outwardly expanding conical surface 71 of the elastic gasket 7 until it is inserted into the annular sealing surface 72 at the bottom of the elastic gasket 7. When the outer guide tube 6 is tightened, the annular sealing surface 72 of the elastic gasket 7 evenly presses against the outer wall of the outer guide tube 6, forming a 360° continuous line seal to ensure the sealing performance of the connection.

[0026] Rotate the fixed sleeve 5 by throttle 51, and screw it axially through the threaded engagement. During this process, the tail end of the fixed sleeve 5 contacts the outer edge surface of the converging arc plate 4. As it is screwed in, the converging arc plate 4 is subjected to radial clamping force and contracts inward synchronously, gripping the outer conduit 6. At the same time, the annular sealing surface 72 of the elastic gasket 7 evenly presses against the outer wall of the outer conduit 6, forming a seal.

[0027] Disconnection procedure: Loosen the retaining sleeve 5: Rotate the retaining sleeve 5 counterclockwise to make it unscrew axially. The constricting arc plate 4 opens outward due to elastic recovery, the elastic pad 7 rebounds, and the outer guide tube 6 is released. Hold the outer guide tube 6 and pull it out directly.

[0028] 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 bogie furnace pipe connection structure, characterized in that, include: Pipeline connector (1) is fixed to the top of the bogie furnace; The bearing seat (2) is coaxially fixed to the upper end face of the pipeline connection seat (1); The inner lining conduit (3) extends upward along the central axis of the support seat (2); Multiple sets of converging arc plates (4) are arranged at intervals around the outer periphery of the inner lining conduit (3) and together with the inner lining conduit (3) define an annular insertion area, which is used for the outer conduit (6) to be inserted axially. A fixed sleeve (5) is fitted onto the outer periphery of the bearing seat (2) and threaded thereon. The fixed sleeve (5) can be screwed in axially to simultaneously radially press all the converging arc plates (4), thereby causing the converging arc plates (4) to clamp the inserted outer conduit (6) to the outer wall of the inner lining conduit (3), thus achieving a quick and sealed connection between the outer conduit (6) and the pipeline connection seat (1).

2. The bogie furnace pipeline connection structure according to claim 1, characterized in that: The outer periphery of the fixed sleeve (5) is provided with several handles (51) for applying rotational torque.

3. The bogie furnace pipeline connection structure according to claim 2, characterized in that: The outer periphery of the bearing seat (2) is provided with an external thread (21), and the inner periphery of the fixing sleeve (5) is provided with a matching internal thread (52). The fixing sleeve (5) is axially screwed in through the internal thread (52).

4. The bogie furnace pipeline connection structure according to claim 3, characterized in that: The tail end of the fixed sleeve (5) covers the outer wall of the entire converging arc plate (4) at the end of the screwing in, so as to form a radial clamping force.

5. The bogie furnace pipeline connection structure according to claim 4, characterized in that: The inner wall of the converging arc plate (4) is provided with an elastic gasket (7). The upper section of the gasket is an outwardly expanding conical surface (71), and the lower section is an annular sealing surface (72), which is used to achieve radial sealing and axial limiting at the same time under the clamping state.

6. A bogie furnace pipeline connection structure according to any one of claims 1-5, characterized in that: The insertion end of the outer conduit (6) is fixedly connected to a connecting sleeve (61), the inner diameter of which matches the outer diameter of the inner liner conduit (3) to establish a pre-position after insertion.

7. The bogie furnace pipeline connection structure according to claim 6, characterized in that: The port of the connecting cylinder (61) is provided with an inlet chamfer (62) to reduce insertion resistance.

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