Telescopic gland loosing compensation joint

Abstract

The utility model discloses a telescopic gland loosing compensation joint which comprises a rubber sleeve, connecting pipes and a gland body, the upper end and the lower end of the rubber sleeve are fixedly connected with protruding rings, the outer side of the rubber sleeve is connected with a set of connecting pipes in a sleeved mode, and the outer ends of the upper surfaces of the connecting pipes are fixedly connected with a plurality of fixing plates at equal angles. The outer sides of the upper end and the lower end of the rubber sleeve are connected with sealing rings in a sleeving mode, gland bodies are installed on the outer sides of the upper end and the lower end of the rubber sleeve, trapezoidal grooves are formed in the inner sides of the lower ends of the gland bodies, a plurality of connecting holes are formed in the outer sides of the top ends of the gland bodies at equal angles, and threaded rods are connected into the connecting holes in a penetrating mode. And the outer end of the inner side face of the convex ring is inclined, and the lower surface of the outer end of the convex ring is attached to the inner end of the upper surface of the sealing ring. According to the telescopic gland loose sleeve compensation joint, the compensation joint is convenient to stretch out and draw back, the sealing performance is convenient to improve, and the compensation joint is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of gland loose sleeve compensating joints, and particularly relates to a telescopic gland loose sleeve compensating joint. Background Technique

[0002] The gland loose sleeve compensating joint is mainly based on the telescopic principle. When the temperature in the pipeline system changes or is affected by other external forces, the pipeline will have a telescopic phenomenon. At this time, the gland loose sleeve compensating joint can freely expand and contract to adapt to the changes of the pipeline, and at the same time ensure the sealing performance of the pipeline system. Through the fixation of bolts and nuts, the sealing ring can be closely attached to the pipeline to achieve a good sealing effect.

[0003] A Chinese utility model patent with the reference authorization publication number CN212564857U discloses a gland loose sleeve compensating joint, which relates to the related technical field of gland loose sleeve compensating joints, including two symmetrical flange plates. Connecting pipes are inserted into both flange plates. A sleeve is arranged between the two flange plates, and the sleeve is sleeved at the connection of the two connecting pipes. A plurality of long screw rods are inserted into the two flange plates. Two symmetrical first fixing nuts are threadedly sleeved on the long screw rods, and the two first fixing nuts are located on the opposite side walls of the two flange plates. The utility model overcomes the deficiencies of the prior art, is reasonably designed and structurally compact, solves the problems of poor telescopic effect of the existing gland loose sleeve compensating joint, easy detachment of the connecting pipe during actual use, and poor sealing performance. The utility model adopts a simple structural combination, improves the telescopic and fixing effects, prevents the connecting pipe from falling off, and can also improve the sealing effect, with strong practicability.

[0004] Because in the existing technology, due to different pipeline sizes, the compensating joint does not match the pipeline, it is not convenient to expand and contract the compensating joint, and the connection between the compensating joint and the pipeline is prone to leakage, it is not convenient to seal the connection between the compensating joint and the pipeline, and when the compensating joint is connected to the pipeline, it is not convenient to disassemble and assemble the compensating joint. Therefore, we propose a telescopic gland loose sleeve compensating joint to facilitate solving the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a telescopic gland loose sleeve compensating joint to solve the problems in the existing technology raised in the above background technique, that is, due to different pipeline sizes, the compensating joint does not match the pipeline, it is not convenient to expand and contract the compensating joint, and the connection between the compensating joint and the pipeline is prone to leakage, it is not convenient to seal the connection between the compensating joint and the pipeline, and when the compensating joint is connected to the pipeline, it is not convenient to disassemble and assemble the compensating joint.

[0006] To achieve the above object, the utility model provides the following technical solutions: A telescopic gland loose sleeve compensating joint, comprising a rubber sleeve, a connecting pipe and a gland body. Convex rings are fixedly connected to both the upper and lower ends of the rubber sleeve. A set of connecting pipes are sleeved outside the rubber sleeve. A plurality of fixing plates are fixedly connected at equal angles to the outer end of the upper surface of the connecting pipe. Sealing rings are sleeved outside both the upper and lower ends of the rubber sleeve, and gland bodies are installed outside both the upper and lower ends of the rubber sleeve;

[0007] A trapezoidal groove is formed inside the lower end of the gland body, and a plurality of connecting holes are formed at equal angles outside the top end of the gland body. A threaded rod penetrates through the inside of the connecting hole, and a plurality of nuts are threadedly connected to the threaded rod.

[0008] Preferably, the outer end of the inner side surface of the convex ring is inclined, and the lower surface of the outer end of the convex ring is fitted with the inner end of the upper surface of the sealing ring.

[0009] Preferably, the inner side surface of the sealing ring is fitted with the inner ends of the upper and lower surfaces of the connecting pipe.

[0010] Preferably, the inner side surface of the trapezoidal groove is fitted with the upper surfaces of the convex ring and the sealing ring.

[0011] Preferably, a through hole is formed in the middle of the fixing plate.

[0012] Preferably, the threaded rod penetrates through the through hole formed in the middle of the fixing plate and the connecting hole.

[0013] Preferably, nuts are installed on both the inner and outer sides of the fixing plate and on both the inner and outer sides of the top end of the gland body on the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: This telescopic gland loose sleeve compensating joint is convenient for telescoping the compensating joint, improving the sealing performance, and disassembling and assembling the compensating joint;

[0015] 1. Convex rings are fixedly connected to both the upper and lower ends of the rubber sleeve. A set of connecting pipes are sleeved outside the rubber sleeve. The rubber sleeve can be telescoped according to temperature changes. The outer side surface of the rubber sleeve is fitted with the inner side surface of the connecting pipe, which is convenient for telescoping the compensating joint;

[0016] 2. Sealing rings are installed at both ends of the inner side surface of the convex ring. The outer end of the inner side surface of the convex ring is inclined. The outer end of the inner side surface of the convex ring is fitted with the inner end of the outer side surface of the sealing ring. The inner side surface of the sealing ring is fitted with the upper and lower surfaces of the connecting pipe. The outer ends of the rubber sleeve and the sealing ring are fitted with the tower height body, which is convenient for improving the sealing performance;

[0017] 3. The outer ends of the upper and lower surfaces of the connecting pipe are fixedly connected with a number of fixing plates at equal angles. Through holes are provided in the middle of the fixing plates. A number of connecting holes are provided at equal angles at the top end of the gland body. The number of the connecting holes is the same as that of the through holes on the fixing plates and the angles are equal. Screws are penetrated and connected in the connecting holes and the through holes on the fixing plates. A number of nuts are threadedly connected to the screws, which is convenient for disassembling and assembling the compensating joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front perspective structural schematic diagram of the present utility model;

[0019] Figure 2 is a top perspective structural schematic diagram of the present utility model;

[0020] Figure 3 is a front perspective sectional structural schematic diagram of the present utility model;

[0021] Figure 4 is a perspective structural schematic diagram of the connecting pipe of the present utility model;

[0022] Figure 5 is a perspective exploded structural schematic diagram of the rubber sleeve, sealing ring and gland body of the present utility model;

[0023] Figure 6 is a perspective sectional structural schematic diagram of the gland body of the present utility model.

[0024] In the figure: 1, rubber sleeve; 2, convex ring; 3, connecting pipe; 4, fixing plate; 5, sealing ring; 6, gland body; 7, trapezoidal groove; 8, connecting hole; 9, threaded rod; 10, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1: Please refer to Figures 1 - 3 and Figure 5 . For the existing gland loose sleeve compensating joint, due to different pipe sizes, the compensating joint does not match the pipe, and it is not convenient to expand and contract the compensating joint. To solve this technical problem, the following technical content is disclosed in this embodiment;

[0027] Convex rings 2 are fixedly connected to both the upper and lower ends of the rubber sleeve 1, and a set of connecting pipes 3 are sleeved and connected to the outside of the rubber sleeve 1;

[0028] The outer sides of the rubber sleeve 1 and the convex ring 2 are fitted to the inner side and the outer ends of the upper and lower surfaces of the connecting pipe 3. When the temperature inside the connecting pipe 3 changes or it is subjected to other external forces, the connecting pipe 3 will expand and contract. At this time, the rubber sleeve 1 and the convex ring 2 will also be affected by the temperature change. The rubber sleeve 1 and the convex ring 2 are fitted to the inner side of the connecting pipe 3, enabling the gland loose sleeve compensator to expand and contract freely and adapt to the changes of the pipeline.

[0029] Embodiment 2: In the existing gland loose sleeve compensator, the connection between the compensator and the pipeline is prone to leakage, and it is not convenient to seal the connection between the compensator box and the pipeline. Therefore, this embodiment adopts the following technical solutions, as Figure 3 and Figure 5 shown;

[0030] A number of fixing plates 4 are fixedly connected to the outer ends of the upper surface of the connecting pipe 3 at equal angles. Sealing rings 5 are sleeved on the outer sides of the upper and lower ends of the rubber sleeve 1. The outer end of the inner side of the convex ring 2 is inclined, and the lower surface of the outer end of the convex ring 2 is fitted to the inner end of the upper surface of the sealing ring 5. And the inner side of the sealing ring 5 is fitted to the inner ends of the upper and lower surfaces of the connecting pipe 3. Gland bodies 6 are installed on the outer sides of the upper and lower ends of the rubber sleeve 1.

[0031] There will be gaps at the joints between the upper and lower ends of the rubber sleeve 1 and the connecting pipe 3. A sealing ring 5 is installed on the outer side of the joint between the rubber sleeve 1 and the connecting pipe 3. Then, the gland body 6 presses the convex ring 2 and the sealing ring 5 onto the connecting pipe 3, so that the sealing ring 5 and the convex ring 2 are tightly pressed on the connecting pipe 3, and the joint between the rubber sleeve 1 and the connecting pipe 3 is tightly fitted together by the sealing ring 5, increasing the sealing performance.

[0032] Embodiment 3: In the existing gland loose sleeve compensator, when the compensator is connected to the pipeline, it is not convenient to disassemble and assemble the compensator. Therefore, this embodiment adopts the following technical solutions, as Figures 1 - 6 shown;

[0033] A trapezoidal groove 7 is opened in the inner side of the lower end of the gland body 6, and the inner side of the trapezoidal groove 7 is fitted to the upper surfaces of the convex ring 2 and the sealing ring 5. A number of connecting holes 8 are opened at equal angles on the outer side of the top end of the gland body 6, and a threaded rod 9 is penetrated through the inside of the connecting hole 8. And a number of nuts 10 are threadedly connected to the threaded rod 9. A through hole is opened in the middle of the fixing plate 4. The threaded rod 9 penetrates through the through hole opened in the middle of the fixing plate 4 and the connecting hole 8, and nuts 10 are installed on both the inner and outer sides of the fixing plate 4 and on both the inner and outer sides of the top end of the gland body 6 on the threaded rod 9.

[0034] The trapezoidal groove 7 is provided on the inner side of the bottom end of the gland body 6 to make the gland body 6 fit tightly with the convex ring 2 and the sealing ring 5. The number and positions of the through holes on the fixing plate 4 and the connecting holes 8 opened at the top end of the gland body 6 are the same. A threaded rod 9 passes through the inside of each pair of through holes on the fixing plate 4 and the connecting holes 8. A number of nuts 10 on the threaded rod 9 are respectively installed on the inner and outer sides of the fixing plate 4 and the inner and outer sides of the top end of the gland body 6. The threaded rod 9 and the nuts 10 fix the gland body 6 on the connecting pipe 3.

[0035] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0036] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described 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 utility model shall be included within the protection scope of the present utility model.

Claims

1. A retractable gland loose sleeve compensating joint, comprising a rubber sleeve (1), a connecting pipe (3) and a gland body (6), characterized in that: The upper and lower ends of the rubber sleeve (1) are fixedly connected with convex rings (2), and the outer side of the rubber sleeve (1) is sleeved with a group of connecting pipes (3), and the outer ends of the upper surfaces of the connecting pipes (3) are fixedly connected with a plurality of fixing plates (4) at equal angles, the outer sides of the upper and lower ends of the rubber sleeve (1) are sleeved with sealing rings (5), and the outer sides of the upper and lower ends of the rubber sleeve (1) are installed with gland bodies (6); A trapezoidal groove (7) is provided on the inner side of the lower end of the gland body (6), and a plurality of connection holes (8) are provided at equal angles on the outer side of the top end of the gland body (6). A threaded rod (9) is passed through the interior of the connection hole (8), and a plurality of nuts (10) are threadedly connected to the threaded rod (9).

2. A retractable gland loose sleeve compensating joint according to claim 1, characterized in that: The outer end of the inner side surface of the convex ring (2) is inclined, and the lower surface of the outer end of the convex ring (2) fits with the inner end of the upper surface of the sealing ring (5).

3. A retractable gland loose sleeve compensating joint according to claim 1, characterized in that: The inner side surface of the sealing ring (5) fits with the inner ends of the upper and lower surfaces of the connecting pipe (3).

4. A retractable gland loose sleeve compensating joint according to claim 1, characterized in that: The inner side surface of the trapezoidal groove (7) is engaged with the upper surface of the convex ring (2) and the sealing ring (5).

5. The retractable gland loose sleeve compensating joint according to claim 1, characterized in that: A through hole is provided in the middle of the fixing plate (4).

6. A retractable gland loose sleeve compensating joint according to claim 1, characterized in that: The threaded rod (9) passes through a through hole and a connection hole (8) opened in the middle of the connecting fixing plate (4).

7. A retractable gland loose sleeve compensating joint according to claim 1, characterized in that: Nuts (10) are installed on the threaded rod (9) at the inner and outer sides of the fixing plate (4) and the inner and outer sides of the top end of the gland body (6).

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