Three-way pipe connecting structure

Abstract

The invention provides a three-way pipe connecting structure which comprises a three-way connecting body, a connecting hose, a flange, a limiting ring, a connecting component and a positioning component, the connecting component comprises a first connecting frame and a second connecting frame, and the three-way connecting body comprises three connecting pipe heads which are communicated with one another; the three connecting pipe heads are respectively communicated with the three connecting hoses; the three limiting rings are arranged on the three connecting hoses in a sliding and sleeving mode correspondingly, and the inner walls of the limiting rings are attached to the pipe walls of the connecting hoses. Connection treatment of the device and external pipelines is achieved through the connecting hose, connection treatment can still be conducted when the three connected external pipelines have installation errors, after connection of the connecting hose is completed, the whole connecting hose can be manually controlled to be bent into a single arc shape, and deformation of the connecting hose is maintained through the limiting ring; the connecting hose can conduct water transmission all the time in a single-arc shape, the single-arc shape is not prone to being blocked by impurities, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater vehicle pipeline connection, and particularly to a tee connection structure. Background Art

[0002] The pipeline connection of an underwater vehicle mainly involves the pipeline connection of the water tanks of the underwater vehicle. Among them, the water tanks in the underwater vehicle are usually used to store ballast water, fresh water, sewage, etc., and are transported and managed through a pipeline system. The water tanks of the underwater vehicle play a key role. While adjusting the buoyancy and balance of the submarine, they are also used to store domestic water, including drinking water and cleaning water, etc.

[0003] There are many water tanks in the underwater vehicle, and most of the water tanks of the underwater vehicle have the need to receive and output water at the same time. The water tanks are interconnected by pipelines before. Therefore, the pipeline connection of the water tanks of the underwater vehicle is relatively complex, and it is also relatively common to use tees or multi-ways to connect multiple pipelines.

[0004] In the case of complex pipeline connections of the underwater vehicle water tanks, the layout positions of most of the pipelines are relatively fixed. However, when actually connecting the water tank pipelines through a tee, there may be installation errors during the installation of each pipeline. Therefore, when connecting the tee, there are also differences in the mutual positions of the pipe orifices. Since the connection orifice positions of the existing tees are fixed, when the pipeline positions are different, the tee cannot adapt to the positions of each pipeline for adaptive connection, and re-layouting the pipelines will consume too much time and cost. Therefore, this solution specifically proposes a tee connection structure to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention proposes a tee connection structure. The connection between the present application and the external pipelines is realized through a connecting hose. Since the connecting hose has a deformable function, when there are installation errors in the three external pipelines to be connected, the three external pipelines can still be connected by adjusting the connecting hose. After the connecting hose is connected, the whole connecting hose can be manually bent into a single arc shape, and the limiting ring is controlled to slide to the middle position of the connecting hose and fixed. The limiting ring maintains the deformation of the connecting hose, so that the connecting hose can always conduct water transmission in the form of a single arc shape. The form of the single arc shape is not easily blocked by impurities and is convenient to use.

[0006] The technical solution of the present invention is realized as follows: The present invention provides a tee connection structure, including a tee connection body, a connecting hose, a flange, a limiting ring, a connecting component and a positioning component. The connecting component includes a first connecting frame and a second connecting frame, wherein,

[0007] The three-way connector includes three interconnected connecting pipe heads, and the three connecting pipe heads are respectively communicated with the three connecting hoses;

[0008] Three limiting rings are respectively sleeved on the three connecting hoses in a sliding manner, and the inner wall of the limiting ring is attached to the pipe wall of the connecting hose;

[0009] The first connecting frame and the second connecting frame are hinged to each other. The first connecting frame is hinged to the end of the connecting hose, and the second connecting frame is hinged to the limiting ring. And the positioning component is used to position the rotation angle of the first connecting frame relative to the second connecting frame.

[0010] On the basis of the above technical solutions, preferably, the connecting hose is a polyurethane hose, and a flange is provided at the end of the connecting hose. The flange is used to connect an external pipeline, and the first connecting frame is hinged to the flange.

[0011] On the basis of the above technical solutions, preferably, four connecting holes are provided on the flange and are circumferentially equidistributed. And the deflection angles between the hinge of the first connecting frame and the flange and its two adjacent connecting holes are both 45°.

[0012] On the basis of the above technical solutions, preferably, the positioning component includes a screw, a sliding block and a first spline insert block. Among them,

[0013] An outer cylinder is provided on the outer side of the first connecting frame, and a mutually communicating first sliding groove is provided between the outer cylinder and the first connecting frame;

[0014] The screw is threadedly connected to the first connecting frame and extends into the first sliding groove;

[0015] The sliding block is slidably arranged in the first sliding groove, and the screw is rotatably connected to the sliding block;

[0016] The first spline insert block is arranged on the sliding block, and a first spline slot is provided on the second connecting frame. When the sliding block slides, the first spline insert block is inserted and engaged with the inner side of the first spline slot.

[0017] On the basis of the above technical solutions, preferably, a mutually communicating hinge hole is provided between the opposite sides of the first connecting frame, and the hinge hole communicates with the end of the first connecting frame. The second connecting frame is hinged inside the hinge hole and is attached to the hole wall of the hinge hole. A knob is provided at the end of the screw.

[0018] On the basis of the above technical solutions, preferably, the three-way connector further includes an inner sphere, an outer sphere, an inner partition and an adjustment component. Among them,

[0019] The inner sphere is movably connected inside the outer sphere and fits against the inner wall of the outer sphere. All three of the connecting pipe heads are provided on the outer sphere, and a communicating cavity communicating with the three connecting pipe heads is formed inside the inner sphere. The wall of the communicating cavity is an arc-shaped wall;

[0020] An inner partition is arranged inside the communicating cavity and divides the communicating cavity into two first diversion cavities and a second diversion cavity of equal volume. The first diversion cavity and the second diversion cavity are both communicated with one of the connecting pipe heads and are respectively communicated with the other two connecting pipe heads. The side wall of the inner partition is an arc-shaped wall;

[0021] The position adjusting member is used to adjust the rotation of the inner sphere relative to the outer sphere.

[0022] Based on the above technical solutions, preferably, it further includes a cylinder body. The position adjusting member includes a position adjusting column and a position adjusting shaft. Among them,

[0023] The cylinder body is arranged outside the outer sphere, and the position adjusting column is threadedly connected inside the cylinder body. A second sliding groove is formed on one side of the position adjusting column close to the outer sphere;

[0024] The position adjusting shaft is fixedly connected to the inner sphere and penetrates through the outer sphere. The position adjusting shaft is slidably connected to the second sliding groove.

[0025] Based on the above technical solutions, preferably, a side convex block is fixedly connected to the peripheral wall of the outer sphere. One side surface of the side convex block away from the outer sphere is a plane, and the cylinder body is detachably connected to the side of the side convex block away from the outer sphere by bolts.

[0026] Based on the above technical solutions, preferably, the position adjusting member further includes a position adjusting insertion rod and a second spline insertion block. Among them,

[0027] The end of the position adjusting column is located inside the cylinder body, and the position adjusting insertion rod is separated from the position adjusting column;

[0028] The second spline insertion block is arranged on the position adjusting insertion rod, and a second spline slot for inserting the second spline insertion block is formed on the position adjusting column.

[0029] Based on the above technical solutions, preferably, the position adjusting insertion rod includes a vertical rod and a horizontal rod, and the vertical rod is perpendicular to and fixedly connected to the horizontal rod.

[0030] The three-way pipe connection structure of the present invention has the following beneficial effects compared with the prior art:

[0031] (1) The connection between this application and external pipelines is achieved through a connecting hose. Since the connecting hose has a deformable function, when there are installation errors in the three external pipelines to be connected, the connection of the three external pipelines can still be processed by adjusting the connecting hose. At the same time, to prevent impurities from clogging inside the connecting hose, after the connecting hose is connected, the entire connecting hose can be controllably bent into a single arc shape, and the limiting ring is adjusted to slide to the middle position of the connecting hose. At this time, the first connecting frame rotates relative to the second connecting frame, and the rotation position of the second connecting frame is positioned through the positioning component. Then, by fixing the rotation angles of the first connecting frame and the second connecting frame, the limiting ring can stably be located at the middle position of the connecting hose without external force, and the limiting ring can maintain the deformation of the connecting hose, enabling the connecting hose to always conduct water transmission in the form of a single arc shape. The single arc shape is not prone to impurity blockage and is convenient for use.

[0032] (2) When water flows from one of the connecting pipe heads to the three-way connector, the water can flow into the interior of the communication cavity through this connecting pipe head and is split by the internal partition to flow out from the first diversion cavity and the second diversion cavity respectively, thus completing the connection process of the three-way. By setting the cavity wall of the communication cavity and the side wall of the internal partition to be arc-shaped walls, when the water flows out from the two diversion cavities, the arc-shaped walls in the shape of an arc smoothly conduct the water, thereby reducing the energy consumption generated when the water flows to the other two connecting pipe heads and being convenient for use.

[0033] (3) By setting the inner sphere to be rotatably arranged inside the outer sphere, when the flow direction of water changes, only the adjustment column needs to be rotated. At this time, the adjustment column drives the adjustment shaft to rotate, and the adjustment shaft drives the inner sphere to rotate, thereby completing the adjustment process of the water inlet direction of the inner sphere, enabling the inner sphere to adjust to the change of the water inlet direction without reinstalling the three-way connector of this application. Since the adjustment column is threadedly connected to the cylinder body, after the adjustment column is rotated, the adjustment column can be positioned under the action of the cylinder body threadedly connected to it, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 It is a front orthographic axonometric view of the three-way pipe connection structure of the present invention;

[0036] Figure 2 It is a rear orthographic axonometric view of the three-way pipe connection structure of the present invention;

[0037] Figure 3 For the three-way pipe connection structure of the present invention Figure 2 The enlarged schematic view at position A shown

[0038] Figure 4 Schematic diagram of the connection method between the first connection frame and the second connection frame of the three-way pipe connection structure of the present invention

[0039] Figure 5 For the three-way pipe connection structure of the present invention Figure 4 Front view of the structure shown

[0040] Figure 6 For the three-way pipe connection structure of the present invention Figure 5 Cross-sectional view of the structure at B-B shown

[0041] Figure 7 Three-dimensional schematic diagram of the structure at the outer sphere of the three-way pipe connection structure of the present invention

[0042] Figure 8 For the three-way pipe connection structure of the present invention Figure 7 Right view of the structure shown

[0043] Figure 9 For the three-way pipe connection structure of the present invention Figure 8 Cross-sectional view of the structure at C-C shown

[0044] Figure 10 For the three-way pipe connection structure of the present invention Figure 7 Rear view of the structure shown

[0045] Figure 11 For the three-way pipe connection structure of the present invention Figure 10 Cross-sectional view of the structure at D-D shown

[0046] Figure 12 Schematic diagram of the connection method between the position-adjusting insertion rod and the second spline insertion block of the three-way pipe connection structure of the present invention Detailed implementation manners

[0047] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0048] Such as Figures 1 to 12As shown in the figure, the tee connection structure of the present invention is characterized in that it includes a tee connection body 1, a connecting hose 21, a flange 22, a limiting ring 23, a connecting component 3 and a positioning component 4. The connecting component 3 includes a first connecting frame 31 and a second connecting frame 32. Among them, the tee connection body 1 includes three interconnected connecting pipe heads 11, and the three connecting pipe heads 11 are respectively connected to the three connecting hoses 21; the three limiting rings 23 are respectively slidably sleeved on the three connecting hoses 21, and the inner wall of the limiting ring 23 is in contact with the pipe wall of the connecting hose 21; the first connecting frame 31 and the second connecting frame 32 are hinged to each other, the first connecting frame 31 is hinged to the end of the connecting hose 21, the second connecting frame 32 is hinged to the limiting ring 23, and the positioning component 4 is used to position the rotation angle of the first connecting frame 31 relative to the second connecting frame 32.

[0049] In specific implementation, the tee connection body 1 cooperates with the connecting hose 21 to replace the existing tee to connect three pipelines. Water flows into the interior of one of the connecting hoses 21 through an external pipeline and flows to one of the connecting pipe heads 11 through the connecting hose 21. Since the three connecting pipe heads 11 are interconnected, the water at this connecting pipe head 11 can flow to the other two connecting pipe heads 11 at this time and flow out through the other two connecting hoses 21, thereby completing the water transmission process. Since the connecting hose 21 has a deformable function, when there are installation errors in the three connected external pipelines, the three external pipelines can still be connected by adjusting the connecting hose 21. At the same time, in order to prevent impurities from clogging in the connecting hose 21, after the connecting hose 21 is connected, the whole connecting hose 21 can be adjusted to be bent into a single arc shape, and the limiting ring 23 can be adjusted to slide to the middle position of the connecting hose 21. At this time, the first connecting frame 31 rotates relative to the second connecting frame 32. By positioning the rotation position of the second connecting frame 32 through the positioning component 4, the rotation angles of the first connecting frame 31 and the second connecting frame 32 can be fixed, so that the limiting ring 23 can stably be located at the middle position of the connecting hose 21 without external force. The limiting ring 23 can maintain the deformation of the connecting hose 21, so that the connecting hose 21 can always transmit water in the form of a single arc shape. The single arc shape is not easy to be clogged by impurities and is convenient to use.

[0050] It should be noted that the single arc shape means that the whole connecting hose 21 only presents an arc shape.

[0051] As a preferred implementation manner, the connecting hose 21 is a polyurethane hose, and a flange 22 is provided at the end of the connecting hose 21. The flange 22 is used to connect the external pipeline, and the first connecting frame 31 is hinged to the flange 22.

[0052] By setting the connecting hose 21 as a polyurethane hose, the connecting hose 21 has the property of being deformable and bendable, and also has a certain plastic toughness. Specifically, it has the advantage of maintaining its shape to a certain extent. In this way, when the connecting hose 21 is completely in a single-arc shape, due to the action of its material properties, the connecting hose 21 is not prone to relative bending, which is convenient for the limiting ring 23 to position the shape of the connecting hose 21, and increases the stability of maintaining the shape of the connecting hose 21.

[0053] As a preferred implementation manner, four connecting holes 221 are provided on the flange 22 and are circumferentially equidistantly distributed, and the deflection angles between the hinged portion of the first connecting frame 31 and the flange 22 and its two adjacent connecting holes 221 are both 45°.

[0054] In specific implementation, the connection between the flange 22 and the external pipeline is completed by passing bolts through the connecting holes 221 provided on the flange 22. Such a design enables the first connecting frame 31 to be connected without affecting the assembly of the flange 22, which is convenient for use.

[0055] As a preferred implementation manner, the positioning member 4 includes a screw rod 41, a sliding block 42 and a first spline insert block 43. Among them, an outer cylinder 33 is provided on the outer side of the first connecting frame 31, and a first sliding groove 331 communicating with each other is provided between the outer cylinder 33 and the first connecting frame 31; the screw rod 41 is threadedly connected to the first connecting frame 31 and extends into the first sliding groove 331; the sliding block 42 is slidably arranged in the first sliding groove 331, and the screw rod 41 is rotatably connected to the sliding block 42; the first spline insert block 43 is provided on the sliding block 42, and a first spline slot 321 is provided on the second connecting frame 32. When the sliding block 42 slides, the first spline insert block 43 is inserted and engaged inside the first spline slot 321.

[0056] In specific implementation, when it is necessary to position the rotation angle of the first connecting frame 31 relative to the second connecting frame 32, the screw rod 41 is rotated. At this time, the screw rod 41 moves under the action of the threaded connection and drives the sliding block 42 to slide along the first sliding groove 331. The sliding block 42 drives the first spline insert block 43 to move and be inserted into the first spline slot 321. Due to the sliding restriction of the sliding block 42, the positioning process of the rotation angle of the first connecting frame 31 relative to the second connecting frame 32 is completed.

[0057] As a preferred implementation manner, a hinged hole 311 communicating with each other is provided between the opposite sides of the first connecting frame 31, and the hinged hole 311 communicates with the end of the first connecting frame 31. The second connecting frame 32 is hinged inside the hinged hole 311 and fits against the hole wall of the hinged hole 311. A knob 44 is provided at the end of the screw rod 41.

[0058] With such a design, the rotational stability of the second connecting frame 32 can be increased under the limitation of the hole wall of the hinge hole 311. By providing the knob 44, it is convenient to adjust the rotation of the screw 41.

[0059] As a preferred embodiment, the three-way connecting body 1 further includes an inner sphere 12, an outer sphere 13, an inner partition 14 and an adjustment member 6. Among them, the inner sphere 12 is movably connected to the inside of the outer sphere 13 and fits against the inner wall of the outer sphere 13. The three connecting pipe heads 11 are all provided on the outer sphere 13, and a communication cavity 121 communicating with the three connecting pipe heads 11 is provided inside the inner sphere 12. The cavity wall of the communication cavity 121 is an arc wall; the inner partition 14 is provided inside the communication cavity 121 and divides the communication cavity 121 into two first diversion cavities 1211 and second diversion cavities 1212 of equal volume. The first diversion cavity 1211 and the second diversion cavity 1212 are both communicated with one of the connecting pipe heads 11 and are respectively communicated with the other two connecting pipe heads 11. The side wall of the inner partition 14 is an arc wall; the adjustment member 6 is used to control the rotation of the inner sphere 12 relative to the outer sphere 13.

[0060] In specific implementation, when water flows from one of the connecting pipe heads 11 to the three-way connecting body 1, the water can flow into the inside of the communication cavity 121 through the connecting pipe head 11 and is diverted by the inner partition 14 and flows out from the first diversion cavity 1211 and the second diversion cavity 1212 respectively, thereby completing the connection process of the three-way connection. By providing that the cavity wall of the communication cavity 121 and the side wall of the inner partition 14 are both arc walls, when the water flows out from the two diversion cavities, the arc walls in the shape of arcs will smoothly guide the water out, thereby reducing the energy consumption generated when the water flows to the other two connecting pipe heads 11 and facilitating use.

[0061] By providing that the inner sphere 12 is rotatably arranged inside the outer sphere 13, when the flow direction of the water changes, only the adjustment member 6 needs to control the rotation of the inner sphere 12, so that the inner sphere 12 can be adjusted to adapt to the changed water flow direction, which is convenient for use.

[0062] As a preferred embodiment, it further includes a cylinder body 51. The adjustment member 6 includes an adjustment column 61 and an adjustment shaft 62. Among them, the cylinder body 51 is arranged outside the outer sphere 13, and the adjustment column 61 is threadedly connected to the inside of the cylinder body 51. A second sliding groove 611 is provided on one side of the adjustment column 61 close to the outer sphere 13; the adjustment shaft 62 is fixedly connected to the inner sphere 12 and penetrates through the outer sphere 13, and the adjustment shaft 62 is slidably connected to the second sliding groove 611.

[0063] When it is necessary to adjust the rotation of the inner sphere 12, only the adjustment column 61 needs to be rotated. At this time, the adjustment column 61 drives the adjustment shaft 62 to rotate, and the adjustment shaft 62 drives the inner sphere 12 to rotate, so as to complete the adjustment of the water inlet direction of the inner sphere 12, enabling the inner sphere 12 to adapt to the change of the water inlet direction without reassembling the three-way connector 1 of the present application. Since the adjustment column 61 is threadedly connected to the cylinder body 51, after the adjustment column 61 rotates, the adjustment column 61 can be positioned under the action of the cylinder body 51 threadedly connected thereto, which is convenient for use.

[0064] As a preferred embodiment, a side convex block 52 is fixedly connected to the peripheral wall of the outer sphere 13. One side surface of the side convex block 52 away from the outer sphere 13 is a plane, and the cylinder body 51 is detachably connected to the side of the side convex block 52 away from the outer sphere 13 by bolts.

[0065] With such a design, since one side surface of the side convex block 52 away from the outer sphere 13 is a plane, it is convenient for the assembly of the cylinder body 51. By setting that the cylinder body 51 is detachably connected to the side convex block 52 by bolts, it is convenient to disassemble the cylinder body 51, and further convenient to replace and maintain the adjustment column 61 inside the cylinder body 51.

[0066] As a preferred embodiment, the adjustment member 6 further includes an adjustment insertion rod 63 and a second spline insertion block 64. Among them, the end of the adjustment column 61 is located inside the cylinder body 51, and the adjustment insertion rod 63 is separated from the adjustment column 61; the second spline insertion block 64 is arranged on the adjustment insertion rod 63, and a second spline slot 612 for inserting the second spline insertion block 64 is formed on the adjustment column 61.

[0067] Specifically, when it is necessary to adjust the rotation of the adjustment column 61, carry the adjustment insertion rod 63 and insert the second spline insertion block 64 into the inside of the second spline slot 612. At this time, under the action of the second spline insertion block 64, the adjustment insertion rod 63 can carry the adjustment column 61 to rotate, which is convenient for the rotation adjustment of the adjustment column 61. By setting that the end of the adjustment column 61 is located inside the cylinder body 51, the cylinder wall of the cylinder body 51 can shield and protect the adjustment column 61, preventing external force from acting on the adjustment column 61 and causing accidental rotation of the adjustment column 61.

[0068] As a preferred embodiment, the adjustment insertion rod 63 includes a vertical rod 631 and a horizontal rod 632, and the vertical rod 631 and the horizontal rod 632 are perpendicular to each other and fixedly connected.

[0069] With such a design, it is convenient to control the rotation of the adjustment insertion rod 63.

[0070] The working principle of the present invention is introduced as follows:

[0071] When assembling the three-way pipe connection structure of the present application, the three connecting hoses 21 are respectively connected to three external pipelines, thereby completing the assembly process of the three-way pipe connection structure of the present application. Since the connecting hose 21 has a deformable function, it is convenient for the assembly of the three-way pipe connection structure of the present application. After the assembly of the three-way pipe connection structure of the present application is completed, the hand applies force to make the connecting hose 21 in a single arc shape, and then the limiting ring 23 is adjusted to slide to the middle position of the connecting hose 21, and the knob 44 is rotated. By fixing the rotation angle between the first connecting frame 31 and the second connecting frame 32, a simple positioning process of the limiting ring 23 can be completed. Under the restriction of the limiting ring 23, the stability of the connecting hose 21 maintaining a single arc shape can be increased to prevent impurities from accumulating in the connecting hose 21. After installation, the water in the external pipeline flows through the connecting hose 21 on one side to the connecting pipe head 11 on that side, and flows from the connecting pipe head 11 on that side into the interior of the communication cavity 121, and flows out from the first diversion cavity 1211 and the second diversion cavity 1212 respectively under the diversion action of the inner partition 14, and flows out through the other two connecting pipe heads 11 into the other two external pipelines, thereby realizing the connection process of the three-way. When the water flow direction in the external pipeline changes, only need to carry the position adjustment plug rod 63, insert the second spline block 64 into the interior of the second spline slot 612, and rotate the position adjustment plug rod 63, thereby completing the rapid steering adjustment process of the inner sphere 12, so that the inner sphere 12 can be adjusted to adapt to the change of the water flow direction, which is convenient for use.

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-way pipe connection structure, characterized in that: The invention comprises a three-way connector (1), a connecting hose (21), a flange (22), a limiting ring (23), a connecting component (3) and a positioning component (4), wherein the connecting component (3) comprises a first connecting frame (31) and a second connecting frame (32), wherein: The three-way connector (1) comprises three interconnected connecting pipe heads (11), and the three connecting pipe heads (11) are respectively connected to the three connecting hoses (21); Three limiting rings (23) are respectively slidably mounted on the three connecting hoses (21), and the inner walls of the limiting rings (23) are in contact with the tube walls of the connecting hoses (21); The first connecting frame (31) and the second connecting frame (32) are hinged to each other, the first connecting frame (31) is hinged to the end of the connecting hose (21), the second connecting frame (32) is hinged to the limiting ring (23), and the positioning component (4) is used to position the rotation angle of the first connecting frame (31) relative to the second connecting frame (32).

2. The three-way pipe connection structure according to claim 1, characterized in that: The connecting hose (21) is a polyurethane hose, and a flange (22) is provided at the end of the connecting hose (21), the flange (22) is used to connect an external pipeline, and the first connecting frame (31) is hinged to the flange (22).

3. The three-way pipe connection structure according to claim 2, characterized in that: The flange (22) is provided with four connection holes (221) which are equidistantly distributed in the circumferential direction, and the angle of deviation between the first connection frame (31) and the flange (22) at the hinged connection point with two adjacent connection holes (221) is 45°.

4. The three-way pipe connection structure according to claim 1, characterized in that: The positioning component (4) comprises a screw (41), a sliding block (42) and a first spline plug block (43), wherein: An outer column (33) is provided on the outer side of the first connecting frame (31), and a first sliding groove (331) communicating with each other is provided between the outer column (33) and the first connecting frame (31); A screw rod (41) threadedly connected to the first connecting frame (31) and extending into the interior of the first sliding groove (331); A sliding block (42) is slidably disposed inside the first sliding groove (331), and the screw rod (41) is rotationally connected to the sliding block (42); The first spline plug block (43) is arranged on the sliding block (42), and the second connecting frame (32) is provided with a first spline slot (321). When the sliding block (42) slides, the first spline plug block (43) is inserted into and engaged with the inner side of the first spline slot (321).

5. The three-way pipe connection structure according to claim 4, characterized in that: A hinge hole (311) that is connected to each other is provided between two opposite sides of the first connecting frame (31), and the hinge hole (311) is connected to the end of the first connecting frame (31), the second connecting frame (32) is hinged inside the hinge hole (311) and fits with the hole wall of the hinge hole (311), and a knob (44) is provided at the end of the screw rod (41).

6. The three-way pipe connection structure according to claim 1, characterized in that: The three-way connector (1) further comprises an inner sphere (12), an outer sphere (13), an inner partition (14) and a positioning component (6), wherein: The inner sphere (12) is movably connected to the inside of the outer sphere (13) and fits with the inner wall of the outer sphere (13); the three connecting pipe heads (11) are all arranged on the outer sphere (13); and a connecting cavity (121) connected to the three connecting pipe heads (11) is opened inside the inner sphere (12); the cavity wall of the connecting cavity (121) is an arc-shaped wall; an inner partition (14) arranged inside the communicating cavity (121) and dividing the communicating cavity (121) into two equal volumes of a first flow guiding cavity (1211) and a second flow guiding cavity (1212); the first flow guiding cavity (1211) and the second flow guiding cavity (1212) are both connected to one of the connecting pipe heads (11) and are respectively connected to the other two connecting pipe heads (11); and a side wall of the inner partition (14) is an arc-shaped wall; The positioning component (6) is used to regulate the rotation of the inner sphere (12) relative to the outer sphere (13).

7. The three-way pipe connection structure according to claim 6, characterized in that: It also includes a cylinder (51), the positioning component (6) includes a positioning column (61) and a positioning shaft (62), wherein: The cylinder (51) is arranged outside the outer sphere (13), and the adjustment column (61) is threadedly connected to the inside of the cylinder (51), and a second sliding groove (611) is formed on a side of the adjustment column (61) close to the outer sphere (13); The positioning shaft (62) is fixedly connected to the inner sphere (12) and penetrates the outer sphere (13); the positioning shaft (62) is slidably connected to the second sliding groove (611).

8. The three-way pipe connection structure according to claim 7, characterized in that: A side protrusion (52) is fixedly connected to the peripheral wall of the outer sphere (13); a side of the side protrusion (52) away from the outer sphere (13) is a plane; and the cylinder (51) is detachably connected to the side of the side protrusion (52) away from the outer sphere (13) by bolts.

9. The three-way pipe connection structure according to claim 7, characterized in that: The positioning component (6) further comprises a positioning plug rod (63) and a second spline plug block (64), wherein: The end of the position adjustment column (61) is located inside the cylinder (51), and the position adjustment rod (63) and the position adjustment column (61) are separated from each other; The second spline plug block (64) is arranged on the positioning plug rod (63), and the positioning column (61) is provided with a second spline slot (612) for the second spline plug block (64) to be plugged in.

10. The three-way pipe connection structure according to claim 9, characterized in that: The positioning rod (63) comprises a vertical rod (631) and a horizontal rod (632), and the vertical rod (631) and the horizontal rod (632) are perpendicular to each other and fixedly connected.

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