BY-shaped gland loose sleeve limiting compensation joint

Abstract

The utility model discloses a BY type gland loose sleeve limiting compensation joint, which relates to the technical field of compensation joints and comprises a main pipe. An inner welding ring is welded to the inner side of the main pipe, corrugated pipes are welded to the two sides of the inner welding ring, and the other ends of the two corrugated pipes are welded to the corresponding sliding pipes respectively. The sliding pipe is connected to the inner side of the main pipe in a sliding mode, and clamping rings are welded to the two ends of the main pipe. A moving plate is welded to the outer side of the sliding pipe; the inner welding ring facilitates welding of the corrugated pipe, the other end of the corrugated pipe is connected with the sliding pipe so that the sealing effect after connection and movement can be guaranteed, the corrugated pipe pushes the sliding pipe to move so that the pressure compensation effect can be achieved, the sliding pipe slides on the main pipe, the corrugated pipe can stretch out and draw back, and the sealing connection effect with the main pipe can be achieved.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of compensation joints, in particular to a BY type gland loose sleeve limiting compensation joint. Background Art

[0002] During the use of water pipes, due to thermal expansion and contraction and other reasons, it is easy to cause excessive local stress and lead to cracks in the pipes. Therefore, when installing the pipes, it is necessary to consider the thermal expansion and contraction of the pipes and buffer the pressure on the inside.

[0003] Chinese utility model publication number CN 211175866 U discloses a water pipe compensating joint, comprising a tubular joint body, both ends of the joint body are provided with pipe connection ports, and an elastic corrugated pipe body is provided between the pipe connection ports;

[0004] The above-mentioned water pipe compensation joint is likely to cause the elastic corrugated pipe body to bend and deform when compensating for pressure, so that it may break at the bend after long-term use. For this reason, we provide a BY-type gland loose sleeve limit compensation joint, which allows the sliding tube to slide on the main pipe, so that the corrugated pipe can be retracted and extended, and can play a role in sealing connection with the main pipe, so that it can move upright, thereby effectively compensating for the above-mentioned problem. Utility Model Content

[0005] The utility model aims to provide a BY type gland loose sleeve limit compensation joint to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A BY type gland loose sleeve limit compensation joint comprises a main pipe; an inner welding ring is welded on the inner side of the main pipe, bellows are welded on both sides of the inner welding ring, and the other ends of the two bellows are respectively welded to corresponding sliding pipes; the sliding pipe is slidably connected to the inner side of the main pipe, clamping rings are welded on both ends of the main pipe; a movable plate is welded on the outer side of the sliding pipe.

[0008] As a further technical solution of the utility model, the movable plate is sleeved on the outside of a plurality of guide rods, a welding plate is welded on the guide rods, and the welding plate is welded to the outside of the main pipe.

[0009] As a further technical solution of the utility model, a spring is sleeved on the outer side of the guide rod, and the spring is welded to the moving plate.

[0010] As a further technical solution of the utility model, a flange is welded on one end of the sliding pipe away from the main pipe.

[0011] As a further technical solution of the present invention, the flange is connected to the connection carrier by bolts.

[0012] As a further technical solution of the utility model, a rubber ring is bonded to the inner side of the sliding tube and the corresponding flange.

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

[0014] 1. In the utility model, the inner welding ring facilitates the welding of the bellows, and the other end of the bellows is connected to the sliding pipe to ensure the sealing effect after the connection moves. The bellows pushes the sliding pipe to move, thereby achieving the effect of pressure compensation. The sliding pipe slides on the main pipe, and the bellows can be retracted and can play a role in sealing connection with the main pipe;

[0015] 2. In the utility model, the welding plate supports the guide rod, the movable plate can move on the guide rod, and the spring pushes the movable plate, which can facilitate the rebound of the bellows and realize automatic extension and retraction;

[0016] 3. In the utility model, the flange facilitates the connection of the sliding pipe, and the rubber ring inside can improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 This utility model Figure 1 main view.

[0019] Figure 3 This utility model Figure 1 Right view of .

[0020] Figure 4 This utility model Figure 3 Sectional view at AA.

[0021] Figure 5 This utility model Figure 4 A partial enlarged view of point B.

[0022] In the figure: 1-main pipe, 2-inner welding ring, 3-bellows, 4-sliding pipe, 5-moving plate, 6-rubber ring, 7-guide rod, 8-spring, 9-welding plate, 10-flange, 11-clamping ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 In an embodiment of the utility model, a BY type gland loose sleeve limit compensation joint includes a main pipe 1; an inner welding ring 2 is welded on the inner side of the main pipe 1, and bellows 3 are welded on both sides of the inner welding ring 2, and the other ends of the two bellows 3 are respectively welded to corresponding sliding pipes 4; the sliding pipe 4 is slidably connected to the inner side of the main pipe 1, and clamping rings 11 are welded on both ends of the main pipe 1; a movable plate 5 is welded on the outer side of the sliding pipe 4.

[0025] By adopting the above technical solution, the inner welding ring 2 facilitates the welding of the bellows 3, and the other end of the bellows 3 is connected to the sliding tube 4 to ensure the sealing effect after the connection is moved. The bellows 3 pushes the sliding tube 4 to move, thereby achieving a pressure compensation effect. The sliding tube 4 slides on the main tube 1, and the bellows 3 can be retracted and expanded, and can play a role in sealing connection with the main tube 1.

[0026] In this embodiment, the movable plate 5 is sleeved on the outer sides of a plurality of guide rods 7 , a welding plate 9 is welded on the guide rods 7 , and the welding plate 9 is welded to the outer side of the main pipe 1 .

[0027] Furthermore, a spring 8 is sleeved on the outer side of the guide rod 7 , and the spring 8 is welded on the moving plate 5 .

[0028] By adopting the above technical solution, the welding plate 9 supports the guide rod 7, the movable plate 5 can move on the guide rod 7, and the spring 8 pushes the movable plate 5, which can facilitate the rebound of the bellows 3 and realize automatic extension and retraction.

[0029] In this embodiment, a flange 10 is welded to one end of the sliding pipe 4 away from the main pipe 1 .

[0030] Furthermore, the flange 10 is connected to the connection carrier by bolts.

[0031] Furthermore, a rubber ring 6 is bonded to the inner side of the sliding tube 4 and the corresponding flange 10 .

[0032] By adopting the above technical solution, the flange 10 facilitates the connection of the sliding pipe 4, and the rubber ring 6 inside can improve the sealing effect.

[0033] The working principle of the utility model is as follows: when in use, the inner welding ring 2 facilitates the welding of the bellows 3, the other end of the bellows 3 is connected to the sliding tube 4 to ensure the sealing effect after the connection is moved, the bellows 3 pushes the sliding tube 4 to move, thereby achieving a pressure compensation effect, the sliding tube 4 slides on the main tube 1, the bellows 3 can be retracted, and can play a role in sealing connection with the main tube 1; the welding plate 9 supports the guide rod 7, the moving plate 5 can move on the guide rod 7, the spring 8 pushes the moving plate 5, which can facilitate the rebound of the bellows 3 and realize automatic retraction; the flange 10 facilitates the connection of the sliding tube 4, and the inner rubber ring 6 can improve the sealing effect.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A BY type gland loose sleeve limit compensation joint, characterized by: The invention comprises a main pipe (1); an inner welding ring (2) is welded on the inner side of the main pipe (1); bellows (3) are welded on both sides of the inner welding ring (2); and the other ends of the two bellows (3) are respectively welded to corresponding sliding pipes (4); the sliding pipe (4) is slidably connected to the inner side of the main pipe (1); clamping rings (11) are welded on both ends of the main pipe (1); and a movable plate (5) is welded on the outer side of the sliding pipe (4).

2. A BY type gland loose sleeve limit compensation joint according to claim 1, characterized in that: The movable plate (5) is sleeved on the outer sides of a plurality of guide rods (7), a welding plate (9) is welded on the guide rods (7), and the welding plate (9) is welded on the outer side of the main pipe (1).

3. A BY type gland loose sleeve limit compensation joint according to claim 2, characterized in that: The outer side of the guide rod (7) is sleeved with a spring (8), and the spring (8) is welded to the moving plate (5).

4. A BY type gland loose sleeve limit compensation joint according to claim 1, characterized in that: A flange (10) is welded to one end of the sliding pipe (4) away from the main pipe (1).

5. A BY type gland loose sleeve limit compensation joint according to claim 4, characterized in that: The flange (10) is connected to the connection carrier by bolts.

6. A BY type gland loose sleeve limit compensation joint according to claim 4, characterized in that: The sliding tube (4) and the corresponding flange (10) are bonded with a rubber ring (6) on their inner sides.

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