A suspended short embedded dynamic ring corrugated pipe assembly device

Abstract

This utility model discloses a suspended short-inserted moving-ring corrugated pipe assembly device, relating to the field of corrugated pipe technology. It includes a ring seat, one end of which is fixedly connected to an insert short sleeve. The insert short sleeve is connected to a ring piece via an interference fit. The insert short sleeve includes an outer ring tube, one end of which is fixedly connected to the ring seat. A connecting ring plate is provided on the inner wall of the other end of the outer ring tube. An inner tube is provided on the end of the connecting ring plate facing the axis, and the inner wall of the inner tube is interference-fitted with the outer wall of the ring piece. This utility model places the ring piece inside the insert short sleeve and then connects the insert short sleeve to the ring seat, forming a suspended bottom for the ring piece. This avoids contact between the ring piece and the ring seat, thus preventing the problem of flatness deformation at the end face of the ring piece due to contact between the end face and the ring seat.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and in particular to a suspended short embedded moving ring corrugated pipe assembly device. Background Technology

[0002] During the installation and use of existing bellows assemblies ( Figure 1 As shown, the assembly and sealing between the ring seat and the ring plate are achieved through a heat-fitting interference fit. Because the axial dimension of the contact surface of the interference fit between the ring seat and the ring plate is too long, the fitting stress is greater. In addition, due to the existence of processing errors, there is an unevenness on the bottom contact surface of the ring seat and the ring plate. After long-term wear, the end face of the ring plate (the contact surface with the ring seat) will be deformed. That is, the flatness of the end face of the ring plate will be deformed during the release of fitting stress. This may affect the sealing performance of the bellows assembly with deformed end face during use. Utility Model Content

[0003] The purpose of this invention is to provide a suspended short-inserted moving ring corrugated pipe assembly device to solve the problem mentioned in the background art where the flatness of the ring end face is easily deformed due to contact between the ring end face and the ring seat.

[0004] The present invention adopts the following technical solution:

[0005] This utility model discloses a suspended short inlaid moving ring corrugated pipe assembly device, including a ring seat, one end face of which is fixedly connected to an inlaid short sleeve, and the inlaid short sleeve is connected to a ring piece in an interference fit manner.

[0006] The inlaid short sleeve includes an outer ring tube, one end of which is fixedly connected to the ring seat. A connecting ring plate is provided on the inner wall of the other end of the outer ring tube. An inner tube is provided on the end of the connecting ring plate facing the axis. The inner wall of the inner tube is interference-fitted with the outer wall of the ring piece.

[0007] Preferably, a docking annular platform is provided on the end face of the annular seat, and one end of the outer annular tube is sleeved on the docking annular platform;

[0008] The outer wall of the ring seat is fixedly connected to the outer wall of the outer ring tube by welding.

[0009] Preferably, the outer wall of the ring seat is provided with a first welding pre-reserved groove near the outer ring tube;

[0010] The outer wall of the outer ring tube has a second welding pre-reserved groove near the ring seat.

[0011] Preferably, a gap is left between the inner tube and the end face of the ring seat.

[0012] Preferably, the end of the ring piece away from the ring seat is provided with a first inclined surface, and the inner tube is provided with a second inclined surface that cooperates with the inclined surface.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This invention places the annular piece inside the inlaid short sleeve, and then connects the inlaid short sleeve to the annular seat, resulting in the bottom of the annular piece being suspended, thus avoiding contact between the annular piece and the annular seat. This prevents the flatness deformation of the annular piece's end face caused by contact with the annular seat. Furthermore, the contact surface between the outer circumferential wall of the annular piece and the inner circumferential wall of the inlaid short sleeve in this invention is shorter in the axial direction compared to existing assembly methods. This reduces the resulting mating stress and also lowers the probability of deformation of the sealing end face. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the existing bellows assembly ring plate and ring seat installation structure mentioned in the background art;

[0017] Figure 2 Cross-sectional view of the suspended short embedded moving ring corrugated pipe assembly device of this utility model. Figure 1 ;

[0018] Figure 3 Cross-sectional view of the suspended short embedded moving ring corrugated pipe assembly device of this utility model. Figure 2 ;

[0019] Figure 4 This is a cross-sectional view of the ring seat in the suspended short embedded moving ring corrugated pipe assembly device of this utility model;

[0020] Figure 5 This is a cross-sectional view of the inlaid short sleeve in the suspended short inlaid moving ring corrugated pipe assembly device of this utility model;

[0021] Figure 6 This is a cross-sectional view of the ring plate in the suspended short embedded moving ring corrugated pipe assembly device of this utility model;

[0022] Figure 7 This is a schematic diagram showing the installation effect of the suspended short embedded moving ring bellows assembly device and the transmission ring of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Ring plate; 1-1. First inclined surface; 2. Inlaid short sleeve; 2-1. Outer ring tube; 2-1-1. Second welding reserved groove; 2-2. Connecting ring plate; 2-3. Inner tube; 2-3-1. Second inclined surface; 3. Ring seat; 3-1. Butt ring platform; 3-2. First welding reserved groove; 4. Bellows; 5. Base; 6. Graphite sealing ring; 7. Transmission ring; 8. Set screw; 9. Connecting screw. Detailed Implementation

[0024] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 2 to 4 As shown, this embodiment discloses a suspended short inlaid moving ring corrugated pipe assembly device, including a ring seat 3. One end face of the ring seat 3 is fixedly connected to the inlaid short sleeve 2, and the inlaid short sleeve 2 is connected to the ring piece 1 in an interference fit.

[0026] The inlaid short sleeve 2 includes an outer ring tube 2-1, one end of which is fixedly connected to the ring seat 3. A connecting ring plate 2-2 is provided on the inner wall of the other end of the outer ring tube 2-1. An inner tube 2-3 is provided on the end of the connecting ring plate 2-2 facing the axis. The inner wall of the inner tube 2-3 is interference-fitted with the outer wall of the ring piece 1.

[0027] In this embodiment, a gap is left between the inner tube 2-3 and the end face of the ring seat 3, and a sufficient gap is also left between the ring piece 1 and the ring seat 3, so that the bottom of the ring piece 1 is suspended, thereby avoiding contact between the ring piece 1 and the ring seat 3, and thus avoiding the problem of flatness deformation at the end face of the ring piece 1 due to contact between the ring piece 1 and the ring seat 3.

[0028] It should be noted that when the inner tube 2-3 of the ring plate 1 and the embedded short sleeve 2 are interference-fitted, the required axial dimension is different from the fit in existing bellows assemblies (such as...). Figure 1 As shown in the figure, the contact surface between the outer peripheral wall of the ring piece 1 and the inner peripheral wall of the inlaid short sleeve 2 is shorter in the axial direction. This will reduce the mating stress accordingly. In addition, the non-contact design between the ring piece 1 and the ring seat 3 can greatly reduce the probability of deformation of the sealing end face.

[0029] like Figures 3 to 6 As shown, the end of the ring piece 1 away from the ring seat 3 is provided with a first inclined surface 1-1, and the inner tube 2-3 is provided with a second inclined surface 2-3-1 that cooperates with the inclined surface 1-1, so as to facilitate the insertion of the ring piece 1.

[0030] A mating annular platform 3-1 is provided on the end face of the ring seat 3. One end of the outer ring tube 2-1 is fitted onto the mating annular platform 3-1 with a clearance fit. The outer wall of the ring seat 3 and the outer wall of the outer ring tube 2-1 are sealed and fixed together by welding. Specifically, a first welding pre-reserved groove 3-2 is provided on the outer wall of the ring seat 3 near the outer ring tube 2-1, and a second welding pre-reserved groove 2-1-1 is provided on the outer wall of the outer ring tube 2-1 near the ring seat 3. During welding, the first welding pre-reserved groove 3-2 and the second welding pre-reserved groove 2-1-1 are welded and filled, thereby strengthening the connection.

[0031] In this embodiment, the first welding reserved groove 3-2 is a ring-shaped groove provided on the outer peripheral wall of the ring seat 3, and the second welding reserved groove 2-1-1 is a ring-shaped groove provided on the outer peripheral wall of the outer ring tube 2-1.

[0032] like Figure 7 As shown, the installation process of this utility model is as follows:

[0033] First, the inner tube 2-3 of the inlaid short sleeve 2 is interference-fitted to form a ring assembly. Then, the outer ring tube 2-1 is fitted onto the mating annular platform 3-1 with a clearance fit. After fitting, the ring seat 3 and the outer ring tube 2-1 are sealed and fixed together by welding, ensuring that the first welding pre-reserved groove 3-2 and the second welding pre-reserved groove 2-1-1 are filled by welding. Thus, the ring 1, the inlaid short sleeve 2, and the ring seat 3 form a ring head assembly. Then, the end of the ring seat 3 away from the ring 1 is sequentially welded to the bellows 4 and the base 5 to finally form a bellows assembly. (In this embodiment, welding pre-reserved grooves are provided at the positions of the ring seat 3 near the bellows 4 and the base 5 near the bellows 4, which are filled by welding during welding to strengthen the connection.) Place the graphite sealing ring 6 into the base 5, insert the drive ring 7 into the base 5 and make it fit against the graphite sealing ring 6. Then, screw the set screws 8 into the drive ring 7 in sequence. The function of the set screws 8 is to make the drive ring 7 press firmly against the bushing when it is installed on the bushing, thereby securing the drive ring 7 and the bushing together. The drive ring 7 and the base 5 are provided with matching threaded holes. Screw the connecting screws 9 into the threaded holes on the drive ring 7 and the base 5 and tighten them, thus connecting the drive ring 7 and the base 5 together. Finally, the drive ring assembly is completed.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A suspended short damascene ring bellows assembly device, characterized by: Includes a ring seat (3), one end face of which is fixedly connected to an inlaid short sleeve (2), and the inlaid short sleeve (2) is connected to the ring piece (1) in an interference fit. The inlaid short sleeve (2) includes an outer ring tube (2-1), one end of which is fixedly connected to the ring seat (3), and a connecting ring plate (2-2) is provided on the inner wall of the other end of the outer ring tube (2-1). An inner tube (2-3) is provided on the end of the connecting ring plate (2-2) facing the axis, and the inner wall of the inner tube (2-3) is interference-fitted with the outer wall of the ring piece (1).

2. The overhanging short-paved dynamic ring bellows assembly device according to claim 1, characterized in that: A docking annular platform (3-1) is provided on the end face of the ring seat (3), and one end of the outer ring tube (2-1) is sleeved on the docking annular platform (3-1); The outer wall of the ring seat (3) is fixedly connected to the outer wall of the outer ring tube (2-1) by welding.

3. The overhanging short-paved dynamic ring bellows assembly device according to claim 2, characterized in that: The outer wall of the ring seat (3) is provided with a first welding reserved groove (3-2) near the outer ring tube (2-1); The outer wall of the outer ring tube (2-1) is provided with a second welding reserved groove (2-1-1) near the ring seat (3).

4. The overhanging short-paved dynamic ring bellows assembly device of claim 1, wherein: A gap is left between the inner support (2-3) and the end face of the ring seat (3).

5. The overhanging short-paved dynamic ring bellows assembly device of claim 1, wherein: The ring plate (1) is provided with a first inclined surface (1-1) at one end away from the ring seat (3), and the inner tube (2-3) is provided with a second inclined surface (2-3-1) that cooperates with the inclined surface (1-1).

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