Flange loose tube compensation joint

Abstract

The utility model relates to the technical field of flange loose compensation joints, and discloses a flange loose compensation joint which comprises a flange body and a short pipe flange, one end of the short pipe flange is inserted into the flange body, a gland is arranged at the joint of the flange body and the short pipe flange, and sealing rings are extruded among the gland, the flange body and the short pipe flange. A reinforcing mechanism is arranged above the sealing ring, a shock absorption and noise reduction mechanism is arranged between the short pipe flange and the gland, the sealing performance of the sealing ring is further improved through the extrusion effect of the reinforcing mechanism on the sealing ring, and the situation of liquid leakage is reduced; the flange loose compensation joint has a certain damping and noise reduction effect, the good damping and sound insulation performance of the damping spring is utilized, vibration energy can be effectively absorbed and dispersed, noise transmission is reduced, and the damping and noise reduction effect of the flange loose compensation joint is further optimized.

Description

Technical Field

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

[0002] The main function of the flange loose sleeve compensation joint is to compensate for the displacement of the pipeline during thermal expansion and contraction, absorb the deformation of the pipeline caused by equipment vibration, earthquake, and ground subsidence, and thus ensure the continuity and stability of the pipeline system. It transfers the force between two pipelines or equipment to the loose sleeve, and then transfers it to other components by the loose sleeve, so as to achieve the transmission and balance of force between the connected parts. This force transmission method can effectively reduce the impact and vibration of the pipeline, reduce the stress level of the pipeline system, and thus extend the service life of the pipeline.

[0003] The patent with the current publication number of CN215000054U discloses a double flange loose sleeve compensation joint, which includes a flange body, a short tube flange and a force transmission screw, one end of the short tube flange is inserted into the flange body, a force transmission nut is tightened on the force transmission screw, a gland is provided at the connection between the flange body and the short tube flange, an elastic sealing strip is squeezed between the gland, the flange body and the short tube flange, a plurality of pairs of relatively arranged sliding grooves are provided on the inner side wall of the flange body toward the short tube flange, a plug-in block is slid in the sliding groove, a reset compression spring is squeezed between the plug-in block and the groove bottom of the sliding groove, a through groove is provided at the groove bottom of the sliding groove that penetrates to the outer side wall of the flange body, a connecting rod is passed through the through groove, one end of the connecting rod is fixedly connected to the plug-in block, and the other end passes through the through groove and is fixedly connected to a pull plate, a clamping groove for sliding the plug-in block is provided on the outer side wall of the short tube flange, the clamping groove is a blind groove, and the clamping groove is provided along the axial direction of the short tube flange. The present application has the effect of reducing the possibility of the joint falling off.

[0004] However, the above technology still has the following problems:

[0005] When the flange loose sleeve compensation joint works for a long time, the short pipe flange will not fit tightly with the sealing ring during movement, which will reduce the sealing effect and cause liquid leakage. At the same time, certain vibration and noise will be generated during the liquid transportation process, affecting the working environment. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a flange loose sleeve compensation joint, which enhances the troublesome effect of the sealing ring and reduces vibration and noise.

[0007] The utility model provides the following technical solution: a flange loose sleeve compensation joint, comprising a flange body and a short tube flange, one end of the short tube flange is inserted into the flange body, a gland is provided at the connection between the flange body and the short tube flange, a sealing ring is squeezed between the gland, the flange body and the short tube flange, a reinforcement mechanism is provided above the sealing ring, and a shock-absorbing and noise-reducing mechanism is provided between the short tube flange and the gland.

[0008] Furthermore, the reinforcement mechanism includes a compression spring fixed to the inner wall of the gland, an output end of the compression spring is fixedly connected to an arc plate, and an inner surface of the arc plate is in contact with an upper surface of the sealing ring.

[0009] Furthermore, the number of the arc-shaped plates is four, and they are arranged in a circumferential array about the surface of the sealing ring.

[0010] Furthermore, the vibration reduction and noise reduction mechanism is arranged in a circumferential array about the surface of the short pipe flange.

[0011] Furthermore, the shock-absorbing and noise-reducing mechanism comprises a first fixing block fixed on the surface of the short pipe flange and a second fixing block fixed on the surface of the gland, and a shock-absorbing spring is fixedly connected between the first fixing block and the second fixing block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This flange loose sleeve compensation joint can, when liquid flows in the pipeline, exert force on the sealing ring through the reinforcement mechanism, so that the sealing ring and the short pipe flange fit tighter, thereby enhancing the sealing effect of the sealing ring and further avoiding liquid leakage in the pipeline. At the same time, it can also reduce vibration and noise of the pipeline and flange body and optimize the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model as a whole;

[0016] Figure 3 is a three-dimensional structural diagram of the practical reinforcement mechanism.

[0017] Figure 4 for Figure 2 Enlarged view of point A above.

[0018] In the figure: 1. flange body; 2. short tube flange; 3. gland; 4. sealing ring; 5. reinforcement mechanism; 501. compression spring; 502. arc plate; 6. shock-absorbing and noise-reducing mechanism; 601. first fixing block; 602. second fixing block; 603. shock-absorbing spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4 A flange loose sleeve compensation joint comprises a flange body 1 and a short tube flange 2, one end of the short tube flange 2 is inserted into the flange body 1, a gland 3 is provided at the connection between the flange body 1 and the short tube flange 2, a sealing ring 4 is squeezed between the gland 3, the flange body 1 and the short tube flange 2, a reinforcement mechanism 5 is provided above the sealing ring 4, and a shock-absorbing and noise-reducing mechanism 6 is provided between the short tube flange 2 and the gland 3.

[0021] A flange loose sleeve compensating joint in the utility model is similar to the existing flange loose sleeve compensating joint structure, such as the patent with publication number CN215000054U which discloses a double flange loose sleeve compensating joint. The main improvement of the utility model is: through the reinforcement mechanism 5, the spring 501 is compressed to exert force on the arc plate 502, squeezing the sealing ring 4, so that the sealing ring 4 and the short pipe flange 2 fit more tightly, thereby strengthening the sealing effect of the sealing ring 4, further avoiding liquid leakage in the pipeline, and at the same time, it can also reduce shock and noise of the pipeline and the flange body 1, and optimize the working environment. Figures 1 to 4 As shown, the flange loose sleeve compensating joint in the utility model, when working, due to the flow of liquid in the pipeline, the internal pressure of the pipeline changes, causing the short pipe flange 2 to move relative to each other, and the force of the compression spring 501 on the arc plate 502 causes the reinforcement mechanism 5 to squeeze the sealing ring 4, so that the sealing ring 4 and the short pipe flange 2 fit more closely, thereby increasing the sealing effect of the sealing ring 4 and further reducing the possibility of liquid leakage. At the same time, the vibration and noise generated in the pipeline can be absorbed and released by the machine shock-absorbing spring 603, making the flange loose sleeve compensating joint more stable, and simultaneously optimizing the working environment.

[0022] like Figure 4 As shown, the reinforcing mechanism 5 includes a compression spring 501 fixed to the inner wall of the pressure cover 3 , and an arc plate 502 is fixedly connected to the output end of the compression spring 501 , and the inner surface of the arc plate 502 is in contact with the upper surface of the sealing ring 4 .

[0023] Specifically, the compression spring 501 is fixed on the inner wall of the gland 3 , and the arc plate 502 squeezes the sealing ring 4 through the force of the compression spring 501 on the arc plate 502 , so that the sealing ring 4 fits more closely with the short pipe flange 2 , thereby increasing the sealing effect of the sealing ring 4 .

[0024] like Figure 2As shown, there are four arc-shaped plates 502 in number, which are arranged in a circumferential array about the surface of the sealing ring 4 .

[0025] Specifically, when installing the flange loose sleeve compensation joint, ensure that the arc plates 502 can move up and down appropriately without affecting each other, thereby ensuring the reinforcement effect.

[0026] like Figure 1 As shown, the vibration-absorbing and noise-reducing mechanisms 6 are arranged in a circumferential array about the surface of the short pipe flange 2 .

[0027] Specifically, the plurality of shock-absorbing and noise-reducing mechanisms 6 can reduce shocks coming from different directions.

[0028] like Figure 1 As shown, the vibration reduction and noise reduction mechanism 6 includes a first fixing block 601 fixed on the surface of the short pipe flange 2 and a second fixing block 602 fixed on the surface of the gland 3 , and a vibration reduction spring 603 is fixedly connected between the first fixing block 601 and the second fixing block 602 .

[0029] Specifically, the first fixing block 601 and the second fixing block 602 are fixed to the short pipe flange 2 and the pressure cover 3 by bolts, and the installation is convenient and quick. The spring, as a good shock-absorbing and sound-insulating material, can effectively absorb and disperse vibration energy and reduce the propagation of noise. The shock-absorbing spring 603 further optimizes the shock-absorbing and noise-reducing effect of the flange loose sleeve compensation joint.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flange loose sleeve compensation joint, comprising a flange body (1) and a short pipe flange (2), one end of the short pipe flange (2) is inserted into the flange body (1), a gland (3) is provided at the connection between the flange body (1) and the short pipe flange (2), and a sealing ring (4) is squeezed between the gland (3), the flange body (1) and the short pipe flange (2), characterized in that: A reinforcement mechanism (5) is arranged above the sealing ring (4), and a shock-absorbing and noise-reducing mechanism (6) is arranged between the short pipe flange (2) and the pressure cover (3).

2. A flange loose sleeve compensating joint according to claim 1, characterized in that: The reinforcing mechanism (5) comprises a compression spring (501) fixed to the inner wall of the gland (3); the output end of the compression spring (501) is fixedly connected to an arc-shaped plate (502); the inner surface of the arc-shaped plate (502) is in contact with the upper surface of the sealing ring (4).

3. A flange loose sleeve compensating joint according to claim 2, characterized in that: The number of the arc-shaped plates (502) is four and they are arranged in a circular array about the surface circumference of the sealing ring (4).

4. A flange loose sleeve compensating joint according to claim 1, 2 or 3, characterized in that: The vibration reduction and noise reduction mechanisms (6) are arranged in a circumferential array about the surface of the short pipe flange (2).

5. A flange loose sleeve compensating joint according to claim 4, characterized in that: The shock-absorbing and noise-reducing mechanism (6) comprises a first fixing block (601) fixed on the surface of the short pipe flange (2), and a second fixing block (602) fixed on the surface of the gland (3); a shock-absorbing spring (603) is fixedly connected between the first fixing block (601) and the second fixing block (602).

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