Bent pipe with buffering function

Abstract

The utility model discloses an elbow with a buffering function, which relates to the field of elbow devices and comprises a buffering sleeve, the buffering sleeve is hollow, an elbow cavity is formed in the buffering sleeve, a first buffering structure is mounted in the buffering sleeve and comprises a first air bag and a second air bag, and the first air bag and the second air bag are communicated with each other. A bent pipe section is installed in the bent pipe cavity, corrugated pipes are fixedly installed at the upper end and the lower end of the bent pipe section, a fixing ring is fixedly installed at the end, away from the bent pipe section, of each corrugated pipe, a straight pipe section is fixedly installed on each fixing ring, and each corrugated pipe is a second buffering mechanism. The first air bag, the second air bag and the buffering sleeve are arranged, fluid impact energy is absorbed through compression of the air bags, pipeline vibration stress is relieved through the corrugated pipe, all-directional buffering of the bent pipe section is achieved, and meanwhile the blockage clearing function can be achieved through mutual cooperation of the two air bags.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending devices, and in particular to a pipe bending device with a buffering function. Background Technology

[0002] Most existing elbow fittings can be divided into three sections: the bend section and the straight pipes at both ends of the bend section. Since elbow fittings are mostly installed at the connection of pipes, water flows through the straight pipe into the bend. Because the direction of water flow needs to be changed, the incoming water will impact the bend. Excessive pressure during the impact can damage the bend. Long-term impact can cause the elbow to deform, posing a significant safety hazard.

[0003] Traditional bends often use rigid structures (such as metal bends), which have the following problems: First, when fluid flows through the bend at high speed, turbulence and impact are easily formed at the bend, resulting in local stress concentration in the bend section. After long-term use, cracks or leaks are likely to occur. Second, due to the reduced fluid velocity at the bend, debris is easy to accumulate. Traditional bends require disassembling the pipe or using mechanical tools to clear the blockage, which is complicated and time-consuming, affecting production efficiency.

[0004] Therefore, it is necessary to propose a bend with a buffering effect to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a bend with a buffer function to solve the problems mentioned in the background art, such as the formation of turbulence and impact at the bend when fluid passes through the bend at high speed, the easy occurrence of cracks or leaks after long-term use, and the accumulation of debris at the bend due to the reduced fluid velocity. The time-consuming and labor-intensive process of clearing blockages in traditional bends is also addressed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bend with a buffering function, comprising a buffer sleeve, wherein the buffer sleeve is hollow and a bend cavity is formed inside the buffer sleeve, and a first buffering mechanism is installed inside the buffer sleeve, wherein the first buffering mechanism comprises a first airbag and a second airbag.

[0007] A bent pipe section is installed inside the bent pipe cavity. Corrugated pipes are fixedly installed at the upper and lower ends of the bent pipe section. A fixing ring is fixedly installed at the end of the corrugated pipe away from the bent pipe section. A straight pipe section is fixedly installed on the fixing ring. The corrugated pipe is a second buffer mechanism.

[0008] Preferably, the first airbag is located inside the buffer sleeve near one side surface, and a first inflation tube is installed on the first airbag. The other end of the first inflation tube passes through the first airbag and the buffer sleeve and is screwed with a first sealing plug.

[0009] Preferably, the second airbag is located inside the buffer sleeve near the bend, and a second inflation tube is installed on the second airbag. The other end of the second inflation tube passes through the second airbag and the buffer sleeve and is screwed with a second sealing plug.

[0010] Preferably, the buffer sleeve wraps around the bent pipe section, and both ends of the buffer sleeve are fixedly connected to two fixing rings respectively.

[0011] Preferably, the outer arc portion of the bend in the pipe section is in contact with the first airbag and the second airbag.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. The corrugated pipe and buffer sleeve provided in this utility model enhance the buffering capacity of the bend, enabling it to adapt to the dynamic changes of the pipeline system. When fluid impacts or pipelines vibrate, it can absorb energy through compression deformation, reduce the direct impact of the impact force on the bend section, improve the overall buffering performance of the bend, and protect the bend section from impact damage. At the same time, the buffer sleeve can also attenuate the noise generated by fluid flow and improve the operating environment.

[0014] 2. This utility model is equipped with a first airbag and a second airbag. The compression of the airbag absorbs the impact energy of the fluid, and the corrugated pipe relieves the vibration stress of the pipe, realizing all-round buffering of the bend section. Especially for vulnerable parts of the bend, the targeted inflation of the second airbag can enhance the local buffering capacity, improve the impact resistance of the bend, and extend the service life. At the same time, the two airbags can cooperate to achieve the unblocking function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a bend with a buffering function according to the present invention.

[0016] Figure 2 This is an internal view of a bend with a buffering function according to the present invention.

[0017] Figure 3 This is a cross-sectional view of a buffer sleeve for a bent pipe with a buffering function according to the present invention.

[0018] In the diagram: 1. Straight pipe section; 2. Buffer sleeve; 3. Fixing ring; 4. Bend pipe section; 5. Corrugated pipe; 6. Bend cavity; 7. First airbag; 8. First inflation tube; 9. First sealing plug; 10. Second airbag; 11. Second inflation tube; 12. Second sealing plug. Detailed Implementation

[0019] This utility model provides a bend with a buffering function; please refer to the appendix. Figure 1 - Appendix Figure 2As shown, it includes a buffer sleeve 2, which is a hollow design. A curved pipe cavity 6 is formed inside the buffer sleeve 2. The buffer sleeve 2 constructs a basic buffer structure, provides initial protection by wrapping the curved pipe section 4, and provides space for subsequent buffering and unblocking functions, so that the curved pipe has a basic structure for buffering external impacts.

[0020] Furthermore, a bent section 4 is installed inside the bent tube cavity 6. The bent section 4 is made of rubber, including but not limited to nitrile rubber, EPDM rubber, neoprene rubber, hydrogenated nitrile rubber, etc., which can be selected according to different usage requirements.

[0021] Furthermore, the buffer sleeve 2 is equipped with a first buffer mechanism, which includes a first airbag 7 and a second airbag 10. The first airbag 7 and the second airbag 10 together form the first buffer mechanism. When fluid impacts or pipe vibrations occur, the energy can be absorbed through compression deformation, reducing the direct impact of external forces on the bend section 4, improving the overall buffer performance of the bend, and protecting the bend section 4 from impact damage.

[0022] At the same time, the buffer sleeve 2 can also attenuate the noise generated by fluid flow. For example, the noise generated by high-speed fluid impacting the bend in industrial pipelines is weakened by the wrapping and blocking of the buffer sleeve 2 and the vibration absorption of the bellows 5, thereby reducing noise pollution in the working environment and improving the operating environment.

[0023] Furthermore, a corrugated pipe 5 is fixedly installed at the upper and lower ends of the bend section 4. A fixing ring 3 is fixedly installed at the end of the corrugated pipe 5 away from the bend section 4. A straight pipe section 1 is fixedly installed on the fixing ring 3. The corrugated pipe 5 is a second buffer mechanism. The corrugated pipe 5 uses elastic deformation to buffer the vibration, displacement or pressure fluctuation of the pipeline, reduce the stress transmission to the bend section 4, and enhance the buffering capacity of the bend while realizing the pipeline connection, so as to adapt to the dynamic changes of the pipeline system.

[0024] Meanwhile, the corrugated pipe 5 has elastic deformation characteristics, which can slightly adjust the relative positional deviation between the straight pipe section 1 and the bent pipe section 4 when installing the bend, reducing the accuracy requirements when connecting pipes and making the bend easier to align with other pipe components for installation. It is especially suitable for complex pipe layout scenarios, saving installation time and labor costs.

[0025] When the water flow in the straight pipe section 4 impacts the bend section 6, because the bend section 4 is made of rubber, it will shift and fall under the impact force. Since the straight pipe section 4 and the corrugated pipe 5 are fixedly connected, and the corrugated pipe 5 is also fixedly connected to the bend section 4, this structure extends the water flow path. The extended water flow path effectively distributes and consumes the impact force of the water flow, thereby reducing the damage of water erosion to the bend section 4 and improving the durability and service life of the bend.

[0026] Specifically, the buffer sleeve 2 wraps around the bent pipe section 4, and the two ends of the buffer sleeve 2 are fixedly connected to two fixing rings 3 respectively, so that the internal buffer structure (such as airbag) of the buffer sleeve 2 is more tightly combined with the bent pipe section 4, the buffering effect is more uniform, and the bent pipe section 4 is protected from external physical damage.

[0027] Please see the appendix Figure 3 As shown, the first airbag 7 is located inside the buffer sleeve 2 near one side surface. The first airbag 7 is equipped with a first inflation tube 8. The other end of the first inflation tube 8 passes through the first airbag 7 and the buffer sleeve 2 and is screwed with a first sealing plug 9. In addition to buffering, the design of the first airbag 7 can also assist the second airbag 10 in clearing blockages.

[0028] Specifically, the second airbag 10 is located inside the buffer sleeve 2 near the bend. The second airbag 10 is equipped with a second inflation tube 11. The other end of the second inflation tube 11 passes through the second airbag 10 and the buffer sleeve 2 and is screwed with a second sealing plug 12. The first airbag 7 and the second airbag 10 allow for independent adjustment of their inflation volume, making the buffering performance of the key part (bend) of the bend flexible and adjustable, improving the comprehensiveness and accuracy of the buffering, and protecting the bend structure.

[0029] During use, when the bend becomes clogged, the second airbag 10 needs to be inflated to its maximum capacity, pushing the bend corner of the bend section 4 inward to increase the angle between the bend section 4 and the straight section 1. This makes it easier for the water flow to flush the blockage debris into the straight section 1, resolving the bend blockage. If the blockage persists, the first airbag 7 needs to be used as an auxiliary measure. After inflating the second airbag 10 to its maximum capacity, the first airbag 7 is cyclically inflated and deflated, allowing the first airbag 7 to assist the bend section... The compression operation is performed above section 4. When the first airbag 7 is inflated, pressure is applied to the upper part of the bend section 4, causing the bend section 4 to deform locally, narrowing the flow channel, and increasing the water flow velocity instantly, thus enhancing the impact force on the blockage. When the first airbag 7 is deflated, the pressure above the bend section 4 is released, the flow channel is restored, and the water flow forms a brief backflow, loosening the blockage. This cycle continues, allowing the blockage to be gradually decomposed and dispersed under the multiple effects of water flow flushing, bend deformation compression, and backflow loosening, and finally carried by the water flow to the straight section 1 for discharge.

[0030] After the operation is completed, stop inflating and deflating the first airbag 7, and then slowly release the gas in the second airbag 10 to restore the original shape of the bend section 4. Then check whether the blockage inside the bend section 4 has been cleared. If there is still residue, the coordinated operation of the first airbag 7 and the second airbag 10 can be repeated until it is completely cleared.

Claims

1. A bend with a buffering function, comprising a buffer sleeve (2), characterized in that: The buffer sleeve (2) is hollow and has a curved tube cavity (6) inside. A first buffer mechanism is installed inside the buffer sleeve (2), which includes a first airbag (7) and a second airbag (10). A bent pipe section (4) is installed inside the bent pipe cavity (6). A corrugated pipe (5) is fixedly installed at the upper and lower ends of the bent pipe section (4). A fixing ring (3) is fixedly installed at the end of the corrugated pipe (5) away from the bent pipe section (4). A straight pipe section (1) is fixedly installed on the fixing ring (3). The corrugated pipe (5) is a second buffer mechanism.

2. The bend with a buffering function according to claim 1, characterized in that: The first airbag (7) is located inside the buffer sleeve (2) near one side surface. The first airbag (7) is equipped with a first inflation tube (8). The other end of the first inflation tube (8) passes through the first airbag (7) and the buffer sleeve (2) and is screwed with a first sealing plug (9).

3. A bend with a buffering function according to claim 1, characterized in that: The second airbag (10) is located inside the buffer sleeve (2) near the bend. A second inflation tube (11) is installed on the second airbag (10). The other end of the second inflation tube (11) passes through the second airbag (10) and the buffer sleeve (2) and is screwed with a second sealing plug (12).

4. A bend with a buffering function according to claim 1, characterized in that: The buffer sleeve (2) wraps around the bent pipe section (4), and the two ends of the buffer sleeve (2) are fixedly connected to two fixing rings (3) respectively.

5. A bend with a buffering function according to claim 1, characterized in that: The outer arc portion of the bent pipe section (4) is in contact with the first airbag (7) and the second airbag (10).

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