A shock-absorbing and bending-resistant water tank pipe connecting structure

Abstract

The application provides a shock-absorbing and bending-resistant water tank pipe connecting structure and relates to the technical field of water tank connecting of underwater vehicles.The water tank pipe connecting structure comprises a connecting pipe, a buffer pipe, a buffer spring and a pull-connection component, both ends of the buffer pipe are connected with first flanges, both ends of the connecting pipe are connected with second flanges, the buffer pipe is connected with the connecting pipe, the connecting pipe is an alloy steel pipe, and the buffer pipe is a copper alloy corrugated pipe; the buffer spring is a graphite fiber composite spring and is sleeved on the circumferential side of the buffer pipe. When water pressure flowing through the buffer pipe is high, the buffer pipe is deformed and bent, the impact force received by the connecting pipe is effectively reduced, the vibration effect of the pipe connecting structure of the application is reduced when the pipe connecting structure is impacted by water, when the buffer pipe is bent, the buffer spring is synchronously bent, the pull-connection component hinders the deformation of the buffer spring, the bending of the buffer pipe is further buffered, and the stability of the pipe connection is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water tank connecting structures of underwater vehicles, and in particular to a shock-absorbing and bending-resistant water tank pipe connecting structure. BACKGROUND

[0002] The water tank of an underwater vehicle is used for storing seawater, fresh water or other liquids and comprises a water pump and the like, and the content of water in the water tank is controlled to maintain the operation of the underwater vehicle. The multiple water tanks of a submarine are connected through a pipe connecting structure.

[0003] The pipe connecting structure of the water tank of an underwater vehicle is used for conveying water or other liquids. In order to ensure the normal operation or living needs of the submarine, the power of the water pump connected to the water tank of the underwater vehicle is high, so as to realize rapid water transmission between the multiple water tanks. The water pressure in the transmission is large, the large water pressure will impact the pipe body, and the pipe body connecting structure may be damaged, thereby causing problems such as water leakage of the pipe connecting structure.

[0004] The application with the publication number CN113063044A proposes a connecting pipe convenient to replace for multiple water tanks and a use method thereof, which comprises a main pipe, a clasp ring, an annular groove and an annular sealing plate. The outer part of the main pipe is symmetrically fixedly connected with first fixing plates. The inner part of each of the first fixing plates is fixedly connected with a sliding rod. The top end of the sliding rod is fixedly connected with a second fixing plate. A tension spring is sleeved on the outer part of the sliding rod and between the first fixing plate and the second fixing plate. However, the pipe connecting structure does not have a pipe body structure capable of buffering the impact of water pressure, so that when the pipe body is impacted by water pressure, vibration occurs. When the vibration is large, the connecting bolts between the pipe bodies may be loose, thereby causing water leakage between the pipes. Therefore, the application proposes a shock-absorbing and bending-resistant water tank pipe connecting structure to solve the above problems. SUMMARY

[0005] Therefore, the application proposes a shock-absorbing and bending-resistant water tank pipe connecting structure. When the water pressure flowing through the buffer pipe is high, the high water pressure will impact the pipe wall of the buffer pipe and cause the buffer pipe to deform and bend. The bent buffer pipe can effectively reduce the impact force received by the connecting pipe and reduce the vibration effect of the pipe connecting structure of the application when it is impacted by water. When the buffer pipe is bent, the buffer spring is bent synchronously. The bent buffer spring prevents the buffer pipe from affecting the connection between the pipe and the pipe connecting structure due to a large bending amplitude. The tensioning component is arranged to hinder the deformation of the buffer spring, further buffers the bending of the buffer pipe and increases the stability of the pipe connection.

[0006] The technical scheme of the application is as follows: the application provides a shock-absorbing and bending-resistant water tank pipe connecting structure, which comprises a connecting pipe, a buffer pipe, a buffer spring and a tensioning component. The tensioning component comprises a sliding block, a side plate, a friction pad and a tensioning rope.

[0007] Both ends of the buffer tube are connected with first flanges, both ends of the connecting tube are connected with second flanges, the buffer tube is communicated with the connecting tube, and the connecting tube is an alloy steel tube;

[0008] The buffer spring is sleeved on the circumferential side of the buffer tube, and both ends of the buffer spring are fixedly connected with the two first flanges respectively;

[0009] The sliding block is slidingly arranged on the connecting tube and slides in the extension direction of the connecting tube;

[0010] The side plate is arranged on the connecting tube, and the friction pad is arranged on the side plate and sealingly abuts against the sliding block;

[0011] Both ends of the pull rope are separately and detachably connected with the buffer spring and the sliding block.

[0012] In the above technical scheme, preferably, the first flange is matched with the second flange, the pipe diameter of the connecting tube is a inch, the pipe diameter of the buffer tube is b inch, and the relationship between a and b is 1 < a < 4 and 1 < b < 4.

[0013] In the above technical scheme, preferably, the buffer tube is a copper alloy corrugated tube, and the buffer spring is a graphite fiber composite spring.

[0014] In the above technical scheme, preferably, the first flange is matched with the second flange, the pipe diameter of the connecting tube is a inch, the pipe diameter of the buffer tube is b inch, and the relationship between a and b is 1 < a < 4 and 1 < b < 4.

[0015] The hanging ring is arranged on the sliding block, and both ends of the pull rope are connected with the hanging buckles, and the two hanging buckles are respectively hung with the hanging ring and the buffer spring.

[0016] In the above technical scheme, preferably, the number of the pull connecting parts is two, and the two sliding blocks are arranged on opposite sides of the connecting tube.

[0017] In the above technical scheme, preferably, the pull rope is a polyethylene fiber rope.

[0018] In the above technical scheme, preferably, the first connecting ring and the second connecting ring are further included, wherein,

[0019] The first connecting ring is detachably connected with the first flange, and the first connecting ring comprises a convex ring, and a sealing insertion slot is arranged in the inside of the convex ring and communicated with the end of the first connecting ring;

[0020] The second connecting ring is detachably connected with the second flange, the first connecting ring is detachably connected with the second connecting ring, and the sealing insert ring is inserted in the inside of the sealing insert groove and sealingly abuts against the inner wall of the sealing insert groove.

[0021] On the basis of the above technical scheme, preferably, further comprising a sealing washer, wherein,

[0022] The sealing washer is a neoprene washer, is located between the first connecting ring and the second connecting ring, and sealingly abuts against the first connecting ring and the second connecting ring, and the sealing washer is located on the inner side of the sealing insert ring.

[0023] On the basis of the above technical scheme, preferably, the first flange is provided with a first flange hole, the first connecting ring is provided with a first bolt hole opposite to the first flange hole, the second flange is provided with a second flange hole, and the second connecting ring is provided with a second bolt hole opposite to the second flange hole.

[0024] On the basis of the above technical scheme, preferably, the first connecting ring is provided with a third bolt hole, and the second connecting ring is provided with a fourth bolt hole opposite to the first connecting ring.

[0025] The shock-absorbing and bending-resistant water tank pipe connecting structure has the following beneficial effects relative to the prior art:

[0026] (1) By arranging the buffer pipe, when the water pressure flowing through the buffer pipe is high, the high water pressure will impact the pipe wall of the buffer pipe and cause the buffer pipe to deform and bend, the bent buffer pipe can effectively reduce the impact force received by the connecting pipe and reduce the vibration effect generated by the pipe connecting structure of the application when subjected to water impact, thereby improving the connection stability between the connecting pipe and the buffer pipe. By sleeving the buffer spring on the buffer pipe, when the buffer pipe bends, the first flange synchronously stretches the buffer spring and causes the buffer spring to synchronously bend, the bent buffer spring exerts a spring force on the first flange, thereby preventing the buffer pipe from affecting the connection with the pipe due to the large bending amplitude. By arranging the pull connecting part to hinder the deformation of the buffer spring, the bending of the buffer pipe is further buffered, and the stability of the pipe connection is increased.

[0027] (2) by setting the first connecting ring and the second connecting ring, since the first connecting ring and the second connecting ring are respectively and separably connected with the first flange and the second flange, and the first connecting ring and the second connecting ring are separably connected with each other, compared with the connection between the ordinary flanges, the connection strength is higher, and the connection stability between the connecting pipe and the buffer pipe is further increased.When the bolt connecting the first connecting ring and the second connecting ring is loose, the first connecting ring and the second connecting ring will be separated from each other, in this process, the sealing insert ring slides relative to the sealing insert groove, and the sealing insert ring after sliding is still located inside the sealing insert groove and is in sealing fit with the sealing insert groove, the sealing insert ring in sealing fit can still hinder water from seeping out of the pipe, and the sealing property of the connection between the connecting pipe and the buffer pipe is further increased. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 It is a perspective view of the shock-absorbing and bending-resistant water tank pipe connecting structure of the present application.

[0030] Figure 2 It is a perspective view of the shock-absorbing and bending-resistant water tank pipe connecting structure of the present application. Figure 1 It is an enlarged view of A shown in the drawing.

[0031] Figure 3 It is a front view of the shock-absorbing and bending-resistant water tank pipe connecting structure of the present application.

[0032] Figure 4 It is a sectional view of the structure at B-B shown in the drawing. Figure 3

[0033] Figure 5 It is an enlarged view of C shown in the drawing. Figure 4

[0034] Figure 6 It is a schematic view of the connecting mode of the connecting pipe and the buffer pipe of the shock-absorbing and bending-resistant water tank pipe connecting structure of the present application.

[0035] Figure 7 It is an exploded view of the structure shown in the drawing. Figure 6

[0036] Figure 8 ​​​Figure 1 is a schematic view of the connection between the connecting pipe and the sliding block of the shock-absorbing and bending-resistant water tank pipe connecting structure of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] As shown in Figures 1-8 The shock-absorbing and bending-resistant water tank pipe connecting structure of the present application comprises a connecting pipe 11, a buffer pipe 12, a buffer spring 3 and a pull connecting part 4, the pull connecting part 4 comprises a sliding block 41, a side plate 42, a friction pad 43 and a pull rope 44, wherein the two ends of the buffer pipe 12 are connected with first flanges 21, the two ends of the connecting pipe 11 are connected with second flanges 22, the buffer pipe 12 is in communication with the connecting pipe 11, and the connecting pipe 11 is an alloy steel pipe; the buffer spring 3 is sleeved on the side of the buffer pipe 12, and the two ends of the buffer spring 3 are fixedly connected with the two first flanges 21 respectively; the sliding block 41 is slidingly arranged on the connecting pipe 11 and slides in the extension direction of the connecting pipe 11; the side plate 42 is arranged on the connecting pipe 11, and the friction pad 43 is arranged on the side plate 42, and the friction pad 43 is sealingly attached to the sliding block 41; and the two ends of the pull rope 44 are separately and detachably connected with the buffer spring 3 and the sliding block 41.

[0039] In the specific implementation, the two ends of the buffer pipe 12 are in communication with the connecting pipe 11, the connecting pipe 11 is a rigid pipe, the buffer pipe 12 is a bendable corrugated pipe, the connecting pipe 11 and the buffer pipe 12 are connected through flanges, and the two ends of the connecting pipe 11 can be connected with two buffer pipes 12.

[0040] In the specific implementation, when the sliding block 41 is in the vertical direction, it can slide downward against the friction of the friction pad 43.

[0041] The buffer pipe 12 is made of a copper alloy corrugated pipe, which has specific bendability and water pressure resistance. When the water pressure flowing through the buffer pipe 12 is high, the high water pressure will impact the wall of the buffer pipe 12 and cause the buffer pipe 12 to deform and bend. The bent buffer pipe 12 can effectively reduce the impact force received by the connecting pipe 11 and reduce the vibration effect of the pipeline connection structure of the present application when subjected to water impact, thereby improving the connection stability between the connecting pipe 11 and the buffer pipe 12. The buffer spring 3 is sleeved on the buffer pipe 12. When the buffer pipe 12 bends, the first flange 21 synchronously stretches the buffer spring 3 and causes the buffer spring 3 to bend synchronously. The bent buffer spring 3 exerts a spring force on the first flange 21, thereby preventing the buffer pipe 12 from affecting the connection with the pipeline due to a large bending amplitude. When the buffer spring 3 bends, one end of the buffer spring 3 pulls the pull rope 44. At this time, the pull rope 44 at this end pulls the sliding block 41 to slide along the connecting pipe 11. The friction pad 43 exerts a friction force on the sliding block 41, thereby hindering the sliding of the sliding block 41 to hinder the bending of the buffer spring 3. By buffering the bending of the buffer spring 3, the bending of the buffer pipe 12 is buffered, thereby increasing the stability of the pipeline connection.

[0042] Preferably, the sliding block 41 can be provided with a counterweight.

[0043] As a preferred embodiment, the first flange 21 is adapted to the second flange 22, the pipe diameter of the connecting pipe 11 is a inches, the pipe diameter of the buffer pipe 12 is b inches, and the relationship between a and b is: 1 < a < 4, and 1 < b < 4.

[0044] If the pipeline design pipe diameter is small, it will limit the water flow, increase the water flow speed, and may cause excessive water pressure impact, which will adversely affect the pipeline and equipment. If the pipeline design pipe diameter is large, it may not be strong enough to effectively withstand the pressure under high water pressure, increasing the risk of rupture. Therefore, the pipe diameters of the connecting pipe 11 and the buffer pipe 12 are designed to be between 1 inch and 4 inches. This design makes the connecting pipe 11 and the buffer pipe 12 relatively small in size. Small diameter pipes are more likely to withstand pressure in a high pressure environment, and the pipe wall is more solid, which can reduce the risk of pipe rupture due to increased water pressure. Small diameter pipes can help control water flow speed to avoid excessive water pressure impact. In the submarine water tank, it is necessary to control the water flow speed to reduce the impact of water flow on the pipeline and equipment, and to maintain system stability. The limited space inside the submarine can better adapt to the space constraints and be easier to arrange and install.

[0045] By setting the first flange 21 and the second flange 22 to be matched, when the pipeline is connected, the buffer pipe 12 can be selected not to be connected, and the two connecting pipes 11 are directly connected through the two second flanges 22.

[0046] Preferably, the buffer pipe 12 can be matched with the size of the connecting pipe 11.

[0047] As a preferred embodiment, the buffer pipe 12 is a copper alloy bellows, and the buffer spring 3 is a graphite fiber composite spring.

[0048] By setting the buffer pipe 12 as a copper alloy bellows, the buffer pipe 12 has a specific bendability while also having water pressure resistance.

[0049] By setting the buffer spring 3 as a graphite fiber composite spring, the buffer spring 3 has good buffering performance and fatigue resistance, and has the advantages of efficient buffering and long service life.

[0050] As a preferred embodiment, it also includes a hanging buckle 51 and a hanging ring 52, wherein the hanging ring 52 is arranged on the sliding block 41, and the two ends of the pull rope 44 are connected with the hanging buckle 51, and the two hanging buckles 51 are respectively hung with the hanging ring 52 and the buffer spring 3.

[0051] In specific implementation, by hanging the two hanging buckles 51 on the buffer spring 3 and the hanging ring 52 respectively, the connection between the pull rope 44, the buffer spring 3 and the sliding block 41 is completed.

[0052] As a preferred embodiment, the number of the pull connecting component 4 is two, and the two sliding blocks 41 are respectively arranged on the opposite sides of the connecting pipe 11.

[0053] As a preferred embodiment, the pull rope 44 is a polyethylene fiber rope.

[0054] In this way, the pull rope 44 has stretchability while having high anti-breaking performance.

[0055] As a preferred embodiment, it also includes a first connecting ring 6 and a second connecting ring 7, wherein the first connecting ring 6 is detachably connected with the first flange 21, and the first connecting ring 6 includes a convex ring 63, and a sealing insertion slot 631 is arranged in the inside of the convex ring 63 and communicated with the end of the first connecting ring 6; the second connecting ring 7 is detachably connected with the second flange 22, the second connecting ring 7 includes a sealing insertion ring 73, the first connecting ring 6 and the second connecting ring 7 are detachably connected, and the sealing insertion ring 73 is inserted into the inside of the sealing insertion slot 631 and sealingly attached to the inner wall of the sealing insertion slot 631.

[0056] In the embodiment, the first connecting ring 6 is connected with the second connecting ring 7 through bolts, and the first connecting ring 6 is connected with the first flange 21 through bolts, and the second connecting ring 7 is connected with the second flange 22 through bolts.

[0057] In this way, since the first connecting ring 6 and the second connecting ring 7 are respectively connected with the first flange 21 and the second flange 22 in a separable manner, and the first connecting ring 6 and the second connecting ring 7 are connected with each other in a separable manner, compared with the connection between the ordinary flanges, the connection strength is higher, and the connection stability between the connecting pipe 11 and the buffer pipe 12 is increased. When the bolts connecting the first connecting ring 6 and the second connecting ring 7 are loose, the first connecting ring 6 and the second connecting ring 7 will be separated from each other, and the sealing ring 73 slides relative to the sealing slot 631, and the sealing ring 73 after sliding is still located inside the sealing slot 631 and is in sealing contact with the sealing slot 631. The sealing ring 73 in sealing contact can still prevent water from leaking out of the pipe, and the sealing property of the connection between the connecting pipe 11 and the buffer pipe 12 is increased.

[0058] As a preferred embodiment, the sealing washer 8 is further included, wherein the sealing washer 8 is a neoprene washer, is located between the first connecting ring 6 and the second connecting ring 7, and is in sealing contact with the first connecting ring 6 and the second connecting ring 7. The sealing washer 8 is located inside the sealing ring 73.

[0059] Specifically, when the first connecting ring 6 and the second connecting ring 7 are connected, the sealing washer 8 is placed between the first connecting ring 6 and the second connecting ring 7, and then the connection between the first connecting ring 6 and the second connecting ring 7 is processed. After the connection, the first connecting ring 6 and the second connecting ring 7 are connected by extruding the sealing washer 8 to deform the sealing washer 8, so as to perform the sealing connection process with the first connecting ring 6 and the second connecting ring 7. The sealing washer 8 in sealing connection can play a role in preliminarily shielding water.

[0060] As a preferred embodiment, the first flange 21 is provided with a first flange hole 211, the first connecting ring 6 is provided with a first bolt hole 61 opposite to the first flange hole 211, the second flange 22 is provided with a second flange hole 221, and the second connecting ring 7 is provided with a second bolt hole 71 opposite to the second flange hole 221.

[0061] The first connecting ring 6 is provided with a third bolt hole 62, and the second connecting ring 7 is provided with a fourth bolt hole 72 opposite to the first connecting ring 6.

[0062] The working principle of the application will be introduced below.

[0063] Specifically, when connecting the buffer pipe 12 and the connecting pipe 11, first, the first connecting ring 6 is connected with the first flange 21 by bolts, the second connecting ring 7 is connected with the second flange 22 by bolts, then the sealing washer 8 is placed between the first connecting ring 6 and the second connecting ring 7, and the first connecting ring 6 and the second connecting ring 7 are connected by bolts, so as to complete the assembly process of the buffer pipe 12 and the connecting pipe 11. When the water pressure flowing through the buffer pipe 12 is high, the higher water pressure will impact the wall of the buffer pipe 12 and cause the buffer pipe 12 to deform and bend. The bent buffer pipe 12 can effectively reduce the impact force received by the connecting pipe 11 and reduce the vibration effect of the pipe connecting structure of the present application when subjected to water impact, thereby improving the connection stability between the connecting pipe 11 and the buffer pipe 12. By sleeving the buffer spring 3 on the buffer pipe 12, when the buffer pipe 12 bends, the first flange 21 synchronously stretches the buffer spring 3 and makes the buffer spring 3 bend synchronously. The bent buffer spring 3 exerts a spring force on the first flange 21, thereby preventing the buffer pipe 12 from affecting the connection with the pipeline due to the large bending amplitude. When the buffer spring 3 bends, one end of the buffer spring 3 will pull the pull rope 44. At this time, the pull rope 44 at this end will pull the sliding block 41 to slide along the connecting pipe 11. The friction pad 43 exerts a friction force on the sliding block 41, thereby hindering the sliding of the sliding block 41 to hinder the bending of the buffer spring 3. By buffering the bending of the buffer spring 3, the bending of the buffer pipe 12 is buffered, and the bending of the buffer pipe 12 is further buffered, thereby increasing the stability of the pipeline connection.

[0064] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A shock absorbing, bend resistant water tank pipe connection structure, characterized by: Including connecting pipe (11), buffer pipe (12), buffer spring (3), pull connecting part (4), hanging buckle (51) and hanging ring (52), the pull connecting part (4) includes sliding block (41), side plate (42), friction pad (43) and pull rope (44), wherein, Both ends of the buffer pipe (12) are connected with first flange (21), both ends of the connecting pipe (11) are connected with second flange (22), the buffer pipe (12) is communicated with the connecting pipe (11), the connecting pipe (11) is alloy steel pipe; Buffer spring (3), sleeve set in the circumferential side of the buffer pipe (12), and both ends of the buffer spring (3) are fixedly connected with two first flanges (21) respectively; Sliding block (41), slidingly arranged on the connecting pipe (11), sliding in the extension direction of the connecting pipe (11); Side plate (42) is arranged on the connecting pipe (11), and the friction pad (43) is arranged on the side plate (42), and the friction pad (43) is sealingly attached to the sliding block (41); Both ends of the pull rope (44) are respectively connected with the buffer spring (3) and the sliding block (41); The first flange (21) is matched with the second flange (22), the pipe diameter of the connecting pipe (11) is a inch, the pipe diameter of the buffer pipe (12) is b inch, and the relationship between a and b is: 1 Hanging ring (52) is arranged on the sliding block (41), and both ends of the pull rope (44) are connected with hanging buckle (51), two hanging buckles (51) are respectively connected with the hanging ring (52) and the buffer spring (3); The number of the pull connecting part (4) is two, and the two sliding blocks (41) are arranged on the opposite sides of the connecting pipe (11).

2. The shock absorbing, bend resistant water tank tube connection structure of claim 1, wherein: The buffer pipe (12) is copper alloy bellows, and the buffer spring (3) is graphite fiber composite spring.

3. The shock absorbing, bend resistant water tank tube connection structure of claim 1, wherein: The pull rope (44) is polyethylene fiber rope.

4. The shock absorbing, bend resistant water tank tube connection structure of claim 1, wherein: It also includes first connecting ring (6) and second connecting ring (7), wherein, The first connecting ring (6) is connected with the first flange (21) and the first connecting ring (6) includes convex ring (63), the inside of the convex ring (63) is provided with sealing slot (631) communicated to the end of the first connecting ring (6); The second connecting ring (7) is connected with the second flange (22), the second connecting ring (7) includes sealing ring (73), the first connecting ring (6) is connected with the second connecting ring (7), and the sealing ring (73) is inserted in the inside of the sealing slot (631) and sealingly attached to the inner wall of the sealing slot (631).

5. The shock absorbing, bend resistant water tank tube connection structure of claim 4, wherein: It also includes sealing washer (8), wherein, The sealing washer (8) is neoprene ring, located between the first connecting ring (6) and the second connecting ring (7), and sealingly attached to the first connecting ring (6) and the second connecting ring (7), the sealing washer (8) is located on the inside of the sealing ring (73).

6. The shock absorbing, bend resistant water tank tube connection structure of claim 4, wherein: The first flange (21) is provided with a first flange hole (211), and the first connecting ring (6) is provided with a first bolt hole (61) opposite to the first flange hole (211); the second flange (22) is provided with a second flange hole (221), and the second connecting ring (7) is provided with a second bolt hole (71) opposite to the second flange hole (221).

7. The shock absorbing, bend resistant water tank tube connection structure of claim 4, wherein: The first connecting ring (6) is provided with a third bolt hole (62), and the second connecting ring (7) is provided with a fourth bolt hole (72) opposite to the first connecting ring (6).

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