Water segregator movable pipe joint with high sealing performance

Abstract

The utility model relates to a water segregator union joint with high sealing performance, which comprises a union body and a coupling nut, the loose joint body comprises an upper connecting end used for being in butt joint with a water segregator and a lower connecting end used for being in butt joint with a water pipe. The connecting nut is movably arranged at the upper connecting end of the loose joint body in a sleeving mode. The sealing assembly is arranged at the upper connecting end, and the sealing assembly further comprises an upper sealing ring and a lower sealing ring; wherein the upper sealing ring is embedded in the top of the outer side of the upper connecting end; a sealing boss is further arranged in the middle of the outer side of the upper connecting end in a protruding mode, a circle of sealing slope is arranged on the lower side of the sealing boss, the lower sealing ring is arranged below the sealing boss in a sleeving mode, and a circle of sealing step is further arranged at the bottom of the inner ring of the connecting nut. According to the loose joint, sealing between the connecting nut and the loose joint body is achieved through the lower sealing ring, the sealing performance is higher, and even if the connecting nut is loosened, the situation of water leakage cannot occur due to the existence of the lower sealing ring.

Description

Technical Field

[0001] The utility model relates to the field of pipe joints, in particular to a water distributor flexible pipe joint with high sealing performance. Background Art

[0002] A flexible pipe joint, commonly known as a "slip joint", is a pipe joint used to connect two pipes with the same nominal diameter. It consists of a male port, a female port and a sleeve nut. It has the characteristics of flexible operation, easy installation and disassembly, and high pressure resistance. A flexible joint is a pipe joint used to connect two pipes with the same nominal diameter. It has the advantage of easy installation and disassembly, so it is mostly used on pipelines that need frequent installation and disassembly or maintenance. When installing the flexible joint, in order to prevent water leakage and air leakage between the two joints and ensure the sealing of the pipeline, a gasket (rubber sheet, rubber asbestos sheet, etc.) can be placed in the middle of the joint.

[0003] In the use of household pipes, water diversion is involved, so a water distributor is often installed in the pipe. Therefore, in addition to docking with other water pipes, some water pipes in the pipes also need to dock with the water distributor. If you want to achieve quick docking between the water pipe and the water distributor and ensure the sealing of the connection between the water pipe and the water distributor, you need to use a flexible pipe joint for the water distributor.

[0004] For example, the Chinese patent with patent number ZL 201210284409.1 discloses: "A pipe adapter joint for installing an instant gas water heater. The adapter joint has one of four possible pipe connectors at one end and a loose nut removably retained at the other end. The hole extends between the loose nut and the pipe connector. The adapter joint has no joint or coupling portion, which is convenient for installing and replacing the water heater and has low production costs. The loose nut is preferably removably retained on the joint by a flange with opposing machined edges. A valve is also disclosed, having only a machined coupling portion, a removably retained loose nut and a retaining flange."

[0005] Including the scheme described in the above patent, there is a problem with the flexible joints in the prior art, that is, no matter what scenario the flexible joints currently available on the market are used for, their indispensable structural components are a flexible joint body and a connecting nut, and the flexible joint body not only needs to form a sealing fit with the water pipe or object connected to it, but also needs to form a sealing fit with the connecting nut to prevent water from seeping out from between the flexible joint body and the connecting nut. However, in the existing flexible joints, the flexible joint body and the connecting nut are sealed by the abutment of the bosses on the two. However, if this sealing form is not precise enough, it will easily leak, and after long-term use, there will be some looseness between the flexible joint body and the connecting nut, which will also cause leakage. Summary of the invention

[0006] In order to overcome the disadvantages of the prior art that the sealing fit between the live joint body and the connecting nut of the live joint is not firm enough and easily causes water leakage, the utility model provides a water distributor live joint with high sealing performance.

[0007] The utility model solves the technical problem by providing a technical solution: a water distributor flexible pipe joint with high sealing performance, comprising:

[0008] A movable joint body, which has a water channel inside, and the movable joint body includes an upper connecting end for connecting with the water distributor and a lower connecting end for connecting with the water pipe;

[0009] A connecting nut, which is movably sleeved on the upper connecting end of the movable body, and the connecting nut can be threadedly connected with the water distributor;

[0010] The connecting nut can move up and down relative to the movable body, and the connecting nut has at least an upper position state and a lower position state through movement;

[0011] Also included are:

[0012] A sealing assembly, which is arranged at the upper connecting end, and the sealing assembly also includes an upper sealing ring and a lower sealing ring;

[0013] The upper sealing ring is embedded in the top of the outer side of the upper connecting end. When the upper connecting end is connected to the water distributor, the upper sealing ring can be sealed between the upper connecting end and the water distributor.

[0014] A sealing boss is also provided at the middle position of the outer side of the upper connecting end, a circle of sealing slope is provided at the lower side of the sealing boss, the lower sealing ring is sleeved under the sealing boss, and a circle of sealing steps is also provided at the bottom of the inner ring of the connecting nut;

[0015] When the connecting nut is in an upper position relative to the movable body, the lower sealing ring is pressed tightly between the sealing slope and the sealing step to achieve a sealing fit between the upper connecting end and the connecting nut;

[0016] When the connecting nut is in a lower position relative to the movable body, the sealing step is separated from the lower sealing ring, so that the sealing cooperation between the upper connecting end and the connecting nut is released.

[0017] Furthermore, a circle of receiving grooves is provided on the outer side of the upper connecting end below the sealing boss, and the lower sealing ring can be engaged with the receiving groove, and the lower sealing ring can move between the sealing slope and the receiving groove;

[0018] When the connecting nut is switched from the lower position to the upper position, the sealing step can push the lower sealing ring to disengage from the accommodating groove and move to the sealing slope;

[0019] When the connecting nut is switched from the upper position to the lower position, the lower sealing ring can automatically return to the accommodating groove.

[0020] Furthermore, the outer side of the upper connecting end is located between the sealing slope and the receiving groove, and a circle of guiding slope is provided, and the guiding slope is inclined from the receiving groove to the sealing slope; when the lower sealing ring moves from the receiving groove to the sealing slope, the lower sealing ring can slide along the guiding slope.

[0021] Furthermore, a circle of abutment slope is provided on the upper side of the sealing boss, and when the flexible joint body is connected to the water distributor, the abutment slope can form an abutment fit with the pipe opening of the water distributor.

[0022] Furthermore, a limiting boss is protruding at the middle position of the movable body, and the limiting boss is located between the upper connecting end and the lower connecting end;

[0023] When the connecting nut is in a lower position relative to the movable body, the upper side of the limiting boss can form an interference fit with the connecting nut;

[0024] When the water pipe is sleeved on the lower connecting end, the lower side of the limiting boss can form an interference fit with the top of the water pipe.

[0025] Furthermore, the lower connecting end includes a sleeve column, and a plurality of sealing grooves are spaced apart on the surface of the sleeve column. A circle of expanding ribs is protruded on the lower connecting end, and the expanding ribs are located above the sleeve column. A circle of shrinking grooves is also provided on the upper connecting end above the expanding ribs.

[0026] When the water pipe is sleeved on the lower connecting end, part of the pipe wall of the water pipe can be embedded in the sealing groove, and the pipe mouth of the water pipe can be tightened in the shrinking groove after passing over the expansion rib.

[0027] Furthermore, a circle of expanding slope is provided at the connection between the lower side of the expanding rib and the sleeve column, and the expanding slope is inclined from the sleeve column toward the expanding rib.

[0028] Installation method of the utility model:

[0029] Connecting water pipes: First, hot-melt one end of the water pipe to be connected to the water distributor, and then sleeve the hot-melted water pipe end onto the lower connection end of the union body. During the sleeve connection process, the water pipe will first pass through the sleeve column, and then the diameter of the water pipe mouth will gradually increase under the action of the expansion slope until the water pipe mouth passes the expansion rib and reaches the shrinking groove. Then wait for the hot-melt water pipe to cool down. The part of the water pipe sleeved at the sleeve column will shrink as it cools down and fit into the sealing groove, and the water pipe mouth at the shrinking groove will also shrink as it cools down and tighten into the shrinking groove.

[0030] Connect the water distributor, put the connecting nut on the upper connecting end of the union body, align the upper connecting end of the union body with the branch pipe opening on the water distributor and plug it in, then move the connecting nut upward to make it close to the branch pipe of the water distributor, and tighten the connecting nut on the branch pipe of the water distributor through threaded connection. During the tightening process of the connecting nut, the connecting nut continues to move upward and when passing through the lower sealing ring, the sealing step on the connecting nut will resist the sealing ring, thereby pushing the lower sealing ring upward to make it out of the receiving groove, and making the lower sealing ring The ring moves along the guide slope to the sealing slope. When the connecting nut is tightened, the lower sealing ring is abutted between the sealing slope and the sealing step. At this time, a seal is formed between the connecting nut and the union body. When the connecting nut is tightened, the union body is also pressed against the pipe mouth of the manifold branch pipe under the action of the connecting nut, and the upper connecting end of the union body extends into the manifold branch pipe, and the upper sealing ring is pressed between the outer wall of the upper connecting end and the inner wall of the manifold branch pipe, thereby realizing the seal between the union body and the manifold.

[0031] The beneficial effects of the utility model are:

[0032] 1. An upper sealing ring and a lower sealing ring are arranged on the union body, wherein the upper sealing ring is used to realize the sealing between the union body and the water distributor, and the lower sealing ring can automatically complete the sealing between the connecting nut and the union body during the tightening process of the connecting nut. The lower sealing ring is used to realize the sealing between the connecting nut and the union body, which not only has higher sealing performance, but also will not cause water leakage even if the connecting nut is loose due to the existence of the lower sealing ring;

[0033] 2. A receiving groove for receiving the lower sealing ring is also provided on the union body, which not only facilitates the installation of the lower sealing ring on the union body, but also prevents the lower sealing ring from affecting the sleeve connection of the connecting nut to the union body when the lower sealing ring is received in the receiving groove;

[0034] 3. A guide slope is also provided between the accommodating groove and the sealing slope, which can guide the lower sealing ring when it is driven upward by the connecting nut, ensuring that the lower sealing ring can move into place to complete the sealing work;

[0035] 4. A sealing groove, an expansion rib and a shrinking groove are also provided on the lower connecting end of the union body to ensure that after the water pipe is connected to the union body, the connection between the water pipe and the union body is tighter, so that the sealing between the water pipe and the union body is also guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the utility model.

[0037] Figure 2 It is a disassembly schematic diagram of the utility model.

[0038] Figure 3 It is a structural schematic diagram of a movable joint body in the utility model.

[0039] Figure 4 It is a structural schematic diagram of a connecting nut in the utility model.

[0040] Figure 5 It is a cross-sectional view of the connecting nut in the utility model when it is in the upper position.

[0041] Figure 6 It is a cross-sectional view of the connecting nut in the utility model when it is in the lower position.

[0042] Figure 7 It is a schematic diagram and a partial enlarged diagram of the state in which the flexible pipe joint is connected to the water distributor in the utility model.

[0043] Figure 8 It is a schematic diagram of the state in which the flexible pipe joint is connected to the water pipe in the utility model.

[0044] Numbers in the figure: 1. union body; 2. water channel; 3. upper connecting end; 4. lower connecting end; 5. connecting nut; 6. upper sealing ring; 7. lower sealing ring; 8. sealing boss; 9. sealing slope; 10. sealing step; 11. accommodating groove; 12. guiding slope; 13. abutting slope; 14. limiting boss; 15. sleeve column; 16. sealing groove; 17. expanding rib; 18. shrinking groove; 19. expanding slope; 100. water distributor; 200. water pipe; a. upper position; b. lower position. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation. Example

[0047] Combination Figures 1 to 8 A water diverter live pipe joint with high sealing performance is shown, comprising a live joint body 1 and a connecting nut 5; a water channel 2 is opened inside the live joint body 1, and the live joint body 1 comprises an upper connecting end 3 for docking with the water diverter 100 and a lower connecting end 4 for docking with the water pipe 200; the connecting nut 5 can be movably sleeved on the upper connecting end 3 of the live joint body 1, and the connecting nut 5 can form a threaded connection with the water diverter 100; the connecting nut 5 can move up and down relative to the live joint body 1, and the connecting nut 5 has at least an upper position state a and a lower position state b by moving; a sealing component is also included, which is arranged at the upper connecting end 3, and the sealing component also comprises an upper sealing ring 6 and a lower sealing ring 7; wherein the upper sealing ring 6 is embedded in the top of the outer side of the upper connecting end 3, when the upper connecting When the end 3 is docked with the water divider 100, the upper sealing ring 6 can be sealed and matched between the upper connecting end 3 and the water divider 100; a sealing boss 8 is also convexly provided at the middle position of the outer side of the upper connecting end 3, and a circle of sealing slope 9 is provided on the lower side of the sealing boss 8, and the lower sealing ring 7 is sleeved under the sealing boss 8, and a circle of sealing steps 10 are also provided at the bottom of the inner ring of the connecting nut 5; when the connecting nut 5 is in the upper position state a relative to the movable body 1, the lower sealing ring 7 is pressed between the sealing slope 9 and the sealing step 10 to achieve the sealing match between the upper connecting end 3 and the connecting nut 5; when the connecting nut 5 is in the lower position state b relative to the movable body 1, the sealing step 10 is separated from the lower sealing ring 7 to release the sealing match between the upper connecting end 3 and the connecting nut 5.

[0048] Among them combined Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, a circle of accommodating grooves 11 are provided on the outer side of the upper connecting end 3 below the sealing boss 8, and the lower sealing ring 7 can form an embedded fit with the accommodating groove 11, and the lower sealing ring 7 can move between the sealing slope 9 and the accommodating groove 11; when the connecting nut 5 is switched from the lower position state b to the upper position state a, the sealing step 10 can push the lower sealing ring 7 to disengage from the accommodating groove 11 and move to the sealing slope 9; when the connecting nut 5 is switched from the upper position state a to the lower position state b, the lower sealing ring 7 can automatically return to the accommodating groove 11.

[0049] Among them combined Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, the outer side of the upper connecting end 3 is located between the sealing slope 9 and the receiving groove 11, and a circle of guiding slope 12 is also provided, and the guiding slope 12 is inclined from the receiving groove 11 to the sealing slope 9; during the movement of the lower sealing ring 7 from the receiving groove 11 to the sealing slope 9, the lower sealing ring 7 can slide along the guiding slope 12.

[0050] Among them combined Figure 3 and Figure 7 As shown, in this embodiment, a circle of abutment slope 13 is further provided on the upper side of the sealing boss 8 . When the movable joint body 1 is connected to the water distributor 100 , the abutment slope 13 can form an abutment fit with the pipe opening of the water distributor 100 .

[0051] Among them combined Figure 3 , Figure 6 and Figure 8 As shown, in this embodiment, a limiting boss 14 is further provided at the middle position of the movable body 1, and the limiting boss 14 is located between the upper connecting end 3 and the lower connecting end 4; when the connecting nut 5 is in the lower position state b relative to the movable body 1, the upper side of the limiting boss 14 can form an interference fit with the connecting nut 5; when the water pipe 200 is sleeved on the lower connecting end 4, the lower side of the limiting boss 14 can form an interference fit with the top of the water pipe 200.

[0052] Among them combined Figure 3 and Figure 8 As shown, in this embodiment, the lower connecting end 4 includes a sleeve column 15, and a plurality of sealing grooves 16 are spaced apart on the surface of the sleeve column 15. A circle of expanding ribs 17 are protruded from the lower connecting end 4, and the expanding ribs 17 are located above the sleeve column 15. A circle of shrinking grooves 18 are also provided on the upper connecting end 3 above the expanding ribs 17. When the water pipe 200 is sleeved on the lower connecting end 4, part of the pipe wall of the water pipe 200 can be embedded in the sealing groove 16, and the pipe mouth of the water pipe 200 can be tightened in the shrinking groove 18 after passing over the expanding ribs 17.

[0053] Among them Figure 3 As shown in FIG. 1 , in this embodiment, a circle of expanding slope 19 is further provided at the connection between the lower side of the expanding rib 17 and the sleeve column 15 , and the expanding slope 19 is inclined from the sleeve column 15 toward the expanding rib 17 .

[0054] The installation method of this embodiment is as follows:

[0055] Among them Figure 8As shown in , when the water pipe 200 is connected in this embodiment: first, one end of the water pipe 200 to be connected to the water distributor 100 is hot-melted, and then the hot-melted one end of the water pipe 200 is sleeved onto the lower connection end 4 of the flexible body 1. During the sleeve connection process, the water pipe 200 first passes through the sleeve column 15, and then the diameter of the water pipe 200 mouth gradually increases under the action of the expansion slope 19 until the water pipe 200 mouth passes the expansion rib 17 and arrives at the shrinking groove 18, and then wait for the hot-melted water pipe 200 to cool down, and the part of the water pipe 200 sleeved at the sleeve column 15 will shrink as it cools and fit into the sealing groove 16, and the water pipe 200 mouth located at the shrinking groove 18 will also shrink as it cools and tighten into the shrinking groove 18;

[0056] Among them Figure 7 As shown in , when the water distributor 100 is connected in this embodiment: after the connecting nut 5 is sleeved on the upper connecting end 3 of the union body 1, the upper connecting end 3 of the union body 1 is aligned with the branch pipe opening on the water distributor 100 and plugged in, then the connecting nut 5 is moved upward to make it close to the branch pipe of the water distributor 100, and the connecting nut 5 is tightened on the branch pipe of the water distributor 100 through threaded connection. During the tightening process of the connecting nut 5, the connecting nut 5 continues to move upward and when passing through the lower sealing ring 7, the sealing step 10 on the connecting nut 5 will resist the sealing ring, thereby pushing the lower sealing ring 7 upward to make it disengage from the receiving groove 11, and The lower sealing ring 7 is moved along the guide slope 12 to the sealing slope 9. When the connecting nut 5 is tightened, the lower sealing ring 7 is abutted between the sealing slope 9 and the sealing step 10. At this time, a seal is formed between the connecting nut 5 and the union body 1. When the connecting nut is tightened, the union body 1 is also pressed against the pipe mouth of the branch pipe of the water distributor 100 under the action of the connecting nut 5, and the upper connecting end 3 of the union body 1 extends into the branch pipe of the water distributor 100, and the upper sealing ring 6 is pressed between the outer wall of the upper connecting end 3 and the inner wall of the branch pipe of the water distributor 100, thereby realizing the seal between the union body 1 and the water distributor 100.

[0057] The advantage of this embodiment is that the sealing method of the flexible joint is improved, and the sealing between the flexible joint body and the connecting nut is achieved through a movable lower sealing ring, thereby effectively improving the sealing between the two.

[0058] The above specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A water distributor flexible pipe joint with high sealing performance, comprising: A movable joint body (1) is provided with a water passage (2) therein, and the movable joint body (1) comprises an upper connection end (3) for docking with a water distributor (100) and a lower connection end (4) for docking with a water pipe (200); A connecting nut (5) which is movably sleeved on the upper connecting end (3) of the movable body (1), and the connecting nut (5) can form a threaded connection with the water distributor (100); The connecting nut (5) can move up and down relative to the movable body (1), and the connecting nut (5) has at least an upper position state (a) and a lower position state (b) through movement; It is characterized in that Also included are: A sealing assembly, which is arranged at the upper connecting end (3), and the sealing assembly also includes an upper sealing ring (6) and a lower sealing ring (7); The upper sealing ring (6) is embedded in the top of the outer side of the upper connecting end (3), and when the upper connecting end (3) and the water distributor (100) are butted, the upper sealing ring (6) can be sealed between the upper connecting end (3) and the water distributor (100); A sealing boss (8) is also provided at the middle position of the outer side of the upper connecting end (3), a circle of sealing slope (9) is provided at the lower side of the sealing boss (8), the lower sealing ring (7) is sleeved under the sealing boss (8), and a circle of sealing steps (10) is also provided at the bottom of the inner ring of the connecting nut (5); When the connecting nut (5) is in an upper position state (a) relative to the movable joint body (1), the lower sealing ring (7) is pressed tightly between the sealing slope (9) and the sealing step (10) to achieve a sealing fit between the upper connecting end (3) and the connecting nut (5); When the connecting nut (5) is in a lower position state (b) relative to the movable joint body (1), the sealing step (10) is separated from the lower sealing ring (7), so that the sealing fit between the upper connecting end (3) and the connecting nut (5) is released.

2. A water distributor flexible pipe joint with high sealing performance according to claim 1, characterized in that: The outer side of the upper connecting end (3) is provided with a circle of receiving grooves (11) below the sealing boss (8), the lower sealing ring (7) can be engaged with the receiving grooves (11), and the lower sealing ring (7) can move between the sealing slope (9) and the receiving grooves (11); When the connecting nut (5) is switched from the lower position state (b) to the upper position state (a), the sealing step (10) can push the lower sealing ring (7) to disengage from the receiving groove (11) and move to the sealing slope (9); When the connecting nut (5) switches from the upper position state (a) to the lower position state (b), the lower sealing ring (7) can automatically return to the accommodating groove (11).

3. A water distributor flexible pipe joint with high sealing performance according to claim 2, characterized in that: The outer side of the upper connecting end (3) is located between the sealing slope (9) and the receiving groove (11), and is provided with a circle of guiding slope (12). The guiding slope (12) is inclined from the receiving groove (11) to the sealing slope (9); when the lower sealing ring (7) moves from the receiving groove (11) to the sealing slope (9), the lower sealing ring (7) can slide along the guiding slope (12).

4. The water distributor flexible pipe joint with high sealing performance according to claim 1, characterized in that: The upper side of the sealing boss (8) is also provided with a circle of abutment slope (13). When the movable joint body (1) is in contact with the water distributor (100), the abutment slope (13) can form an abutment fit with the pipe opening of the water distributor (100).

5. The water distributor flexible pipe joint with high sealing performance according to claim 1, characterized in that: A limiting boss (14) is also provided at the middle position of the movable joint body (1), and the limiting boss (14) is located between the upper connecting end (3) and the lower connecting end (4); When the connecting nut (5) is in a lower position state (b) relative to the movable joint body (1), the upper side of the limiting boss (14) can form an interference fit with the connecting nut (5); When the water pipe (200) is sleeved on the lower connecting end (4), the lower side of the limiting boss (14) can form an interference fit with the top of the water pipe (200).

6. The water distributor flexible pipe joint with high sealing performance according to claim 1, characterized in that: The lower connecting end (4) includes a sleeve column (15), and a plurality of sealing grooves (16) are provided at intervals on the surface of the sleeve column (15). A circle of expansion ribs (17) is provided on the lower connecting end (4), and the expansion ribs (17) are located above the sleeve column (15). A circle of shrinking grooves (18) is provided on the upper connecting end (3) above the expansion ribs (17). When the water pipe (200) is sleeved on the lower connecting end (4), part of the pipe wall of the water pipe (200) can be embedded in the sealing groove (16), and the pipe mouth of the water pipe (200) can be tightened in the shrinking groove (18) after passing over the expansion rib (17).

7. A water distributor flexible pipe joint with high sealing performance according to claim 6, characterized in that: A circle of expansion slope (19) is also provided at the connection between the lower side of the expansion rib (17) and the sleeve column (15), and the expansion slope (19) is inclined from the sleeve column (15) toward the expansion rib (17).

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