TR2021002373T2 - PIPE AND COUPLER CONNECTION WITH GROOVE AND MULTIPLE SEALING - Google Patents

Abstract

The present specification discloses a pipe and coupler assembly made of polyvinyl chloride. The assembly includes a tube having a first end and a second end configured with a plurality of external threads. The assembly includes a coupler including a first coupling end having a plurality of internal threads and a second coupling end. The first end of the pipe is non-removably connected to the first coupling end. A locking means is disposed in a first annular groove formed at the first coupling end to lock the first end of the pipe with the first coupling end. Additionally, a second annular groove is defined in the flat portion of the coupler, and a first plurality of lip sealing rings are accommodated in the second groove to form a fluid seal between the first end of the pipe and the first coupling end of the coupler.

Description

BRIEF DESCRIPTION OF THE DESCRIPTION The shortcomings of the prior art are eliminated and additional advantages are provided by the provision of the device as specified in the present specification. Additional features and advantages are apparent from the techniques of the present disclosure. Other embodiments and aspects of the specification are described in detail herein and are considered a part of the stated specification. In a non-limiting embodiment of the specification, a pipe and coupler assembly made of polyvinyl chloride is disclosed. The assembly includes a pipe having a first end, wherein at least a portion of an external surface of the first end is provided with a plurality of external gears. A coupler includes a first coupling end and a second coupling end having a plurality of internal threads on an inner surface divided by a flat portion, wherein the first end of the pipe is configured to couple to the first coupling end. A locking means is placed within a first annular groove formed between the first coupling end and the first end of the pipe, the locking means being configured to lock the first end of the pipe 101 with the first coupling end. The assembly further includes a second annular groove defined in the flat portion of the coupler, wherein the second annular groove is defined by a substantially flat lower portion having curved ends. A first multi-mouth sealing ring is provided in the second groove to form a fluid seal between the first end of the pipe and the first coupling end of the coupler. In one embodiment, the first multi-flute sealing ring includes a flat base portion on an outer surface and a plurality of internal protrusions projecting on an inner surface. Further, each of the plurality of internal protrusions is divided by a gap, wherein the plurality of internal protrusions abuts the outer surface of the first end of the tube. In one embodiment, a width of the second annular groove is greater than the height of the plurality of inner square gears. The width of the second circular groove is at least twice the height of most inner square grooves. In one embodiment, the locking means is made of a degradable element. The locking means is made of a metallic material or a polymeric material. In one embodiment, the locking means is a safety pin. coupler in one embodiment. It includes a slot defined on the outer surface adjacent to the tangential hole for bending the locking means within an outer diameter of the coupler. In one embodiment, the plurality of ribs on the outer surface of the coupler retain a pipe wrench during assembly and disassembly of the coupler and pipe. In one embodiment, the second end of the pipe may be received by the second coupling end of an adjacent coupler for joining two pipes. In one embodiment, the assembly includes a second multi-mouth sealing ring provided on the second end of the pipe. The second multi-port sealing ring is adapted to adjoin the inner surface of the second coupling end to form a fluid seal between the second end of the pipe and the second coupling end of the coupler. In one embodiment, the second polyflute sealing ring is provided in a portion of the second end adjacent the plurality of outer square gears. In one embodiment, the coupler includes a circular ring extending on the inner surface of the coupler in the flat portion. It should be understood that the angles and arrangements of the above-described specification may be used in any combination with each other. Many aspects and arrangements can be combined together to form a further embodiment of the specification. The above brief description is illustrative only and is not intended to be restrictive in any way. In addition to the illustrative aspects, arrangements and features described above, additional aspects, arrangements and features will be apparent by reference to the drawings and the description detailed below. BRIEF DESCRIPTION OF THE APPENDED DRAWINGS New features and characteristics of the specification are set forth in the appended claims. However, a preferred mode of use, its purposes and advantages, as well as the specification itself, will be best understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings. By way of example only, one or more embodiments are described herein with reference to the accompanying drawings, wherein like reference numerals represent like elements and wherein: Fig. 1 shows a cross-sectional view of the pipe and coupler assembly in accordance with an embodiment of the present specification. Figure 2 shows a cross-sectional front view of the pipe and coupler assembly having the safety pin in accordance with an exemplary embodiment of the present specification. Figure 3 shows a cross-sectional view of the coupler according to an embodiment of the present specification. Figures 4A and 48 show perspective views of a first multi-flute sealing ring according to an embodiment of the present specification. Figure 5 shows a cross-sectional view of the first multi-flute sealing ring of Figure 4A. Figure 6 shows a cross-sectional view of the second end of the tube according to an embodiment of the present specification. Shapes? A and TB show perspective views of a second multi-flute sealing ring according to an embodiment of the present specification. Figure 8 shows a schematic view of a tubing and coupler assembly secured to a submersible pump in a borehole in accordance with an exemplary embodiment of the present specification. The figures illustrate embodiments of the specification for illustrative purposes only. One skilled in the art will readily understand from the following description that alternative embodiments of the structures and methods illustrated herein can be used without departing from the principles of the specification disclosed herein. DETAILED DESCRIPTION Below is the detailed explanation of the specification, in order to be better understood, and the features and technical advantages of the current specification are clearly summarized above. Hereinafter, additional features and advantages of the specification, which constitute the subject of the claims of the specification, will be explained. It should be understood by those skilled in the art that the concept and specific embodiment described can readily be used as a basis for modifying or designing other structures to achieve the same objectives of the present specification. At the same time, it should be understood by those skilled in the art that such equivalent structures do not depart from the spirit and scope of the specification as suggested in the appended claims. The new features believed to be characteristic of the specification, together with additional purposes and advantages, both as to the method of construction and the method of operation, will be better understood from the following description if considered in connection with the accompanying figures. It should be clearly understood, however, that each of the drawings is provided for illustrative and illustrative purposes only and is not intended as an illustration of the limitations of the present specification. It is intended to include non-exclusive inclusion, such that an apparatus, device, or method containing a list of components or steps does not include solely those components or steps, but may include other components or steps that are not expressly listed or are inherent in such setup or device or method. In other words, one or more elements in a system or apparatus followed by "contains a..." does not exclude, without further limitation, the presence of other elements or additional elements in the system or apparatus. Embodiments of the present specification disclose a pipe and coupler assembly made of polyvinyl chloride (PVC). The pipe and coupler assembly can be used in well drilling to draw water or other fluids from the source to a point of interest. Because the assembly's pipe and coupler are made of polyvinyl chloride material, problems associated with metallic pipes, such as corrosion or rust, can be avoided. This significantly increases the Life of the pipe and coupler assembly and also prevents any accidental breakage of the assembly during use. However, pipe and coupler assembly made of polyvinyl chloride material may pose certain threats such as accidental disassembly of the coupler and pipe due to various forces such as bending, axial and undulations acting on the assembly. At the same time, couplers made of polyvinyl chloride may break due to the notching effect in a narrow groove region due to the stress concentration acting in the narrow groove region. The groove to accommodate the sealing ring is widened to reduce the stress concentration acting in the narrow groove region. Widening the groove can relieve stresses acting in the groove area and increase the life of the pipe and coupler unit. However, as widening of the groove may create problems such as compression, keeping the given dimensions of the pipe and coupler may be difficult and may require a larger sealing ring to be used. If the depth of a groove is increased in the pipe or coupler to compensate, the section may become weak, which could lead to failure again. The tubing and coupler assembly of the present disclosure is also used with a locking means, such as a safety pin, such that one end of the tubing is non-removably connected to the coupler and the other end of the tubing can be connected to an adjacent coupler to form a connection, thereby preventing disassembly of the assembly. In the present specification, the groove for accommodating a seal in the coupler is widened so that the stress acting in the region of the groove can be relieved. Additionally, the flared thread can be compatible with many flute sealing rings, providing full sealing of the thread and allowing for easy tightening. Multi-mouth sealing ring can achieve multiple sealing effect between pipe and coupler. Thus, it establishes the liquid tightness of the pipe and coupler unit and maintains structural rigidity. In some embodiments, the locking means is a flexible member and may consist of any configuration. The following paragraphs explain the present specification with reference to Figures 1 to 9. In the figures, the same element or elements with the same functions are indicated with the same reference numbers. Figure 1 is an exemplary embodiment of the present specification showing a cross-sectional view of the pipe 101 and coupler assembly 100. It includes the pipe (101) and the coupler assembly (). The pipe (101) has a first end (101a) and a second end (101b) with a plurality of external square-shaped gears (102). The pipe (102) has a first end (101a) with a plurality of external square-shaped gears (102). 101) is defined on an outer surface and may extend over at least a portion of the pipe 101 from both ends 101a and 101b. In one embodiment of the specification, the height of the plurality of external square gears 102 may be configured depending on the diameter of the pipe 101. The pipe (101) may be configured to be coupled with a coupler (103) for connecting another pipe (101), the first end (101a) being non-removably connected to the coupler (103) and the second end (101b) being connected to an adjacent pipe. The coupler (103) and the coupler assembly (100) can also be produced from polyvinyl chloride material and the coupler (103) can be used to connect two pipes (101) to form a connection. It includes a coupling end (103a) and a second coupling end (103b). The first coupling end (103a) and a second coupling end (103b) can be divided by a flat section (103c). The coupler (103) may be configured with a plurality of inner square-shaped gears (104) at both the first coupling end (103a) and the second coupling end (103b). Many inner square-shaped gears (104) can extend onto an inner surface of the coupler (103) up to the flat part (103c). A plurality of inner square-shaped gears (104) are adapted to form a pore arrangement with a plurality of outer square-shaped gears (102) on the pipe (101). May contain rib (113). In connection with Figure 1 and with reference to Figure 2, the first end (101a) of the pipe (101) is connected to the first coupling end (103a) of the coupler (103) in a non-removable manner. The second coupling end (103b) of the coupler (103) can be adapted to receive the second end (101b) of another pipe (101). As shown in Figure 2, a locking mechanism is provided in the pipe and coupler assembly (100) for locking the first end (101a) of the pipe (101) with the first coupling end (103a). In one embodiment, the locking mechanism may prevent axial and rotational movement of the pipe 101 relative to the coupler 103. The locking mechanism may include a locking means, such as, but not limited to, a safety pin (107) inserted into a first circular groove (105) formed between the first coupling end (103a) and the first end (101a) of the pipe (101). Figure 2 shows the first annular groove 105 partly in the coupler 103 and partly in the pipe 101. The first circular groove (105) is formed to extend into the coupler (103) and work together with the pipe (101) to form the complete groove. Furthermore, the coupler (103) also includes a tangential hole (106) extending from a first outer surface to the inner surface. The tangential hole (106) can intersect with the first circular groove (105), so that the safety pin (107) can be inserted into the first circular groove (105) through the tangential hole (106). In one embodiment of the specification, a portion of the groove in the coupler (103) is made longer than the groove in the pipe (101) to ensure that the safety pin (107) does not share the axial load in use. In one embodiment of the specification, safety pin 107 may be made of any flexible material. As an example, the material of the safety pin 107 may include polymeric material, metallic material, and composite material. The safety pin 107 can be inserted into the first circular groove 105 through the tangential hole 106 using any suitable mechanism. During the process, the safety pin (107) is located in the first circular groove (105) and is adjacent to a part of the safety pin (107). The safety pin 107 can then be cut and bent in a slot 110 configured on the outer surface of the coupler 103. In one embodiment, the housing 110 may be formed by a machining process and profiled to accommodate the safety pin 107. As an example, the housing 110 can be formed by a grinding process. The bending of the safety pin 107 in the housing 110 functions as a lock to retain the first end 101a of the pipe 101 in the coupler 103 and also functions as a circular circle covering the outer diameter of the coupler 103. Figure 2 also shows a cover 115 around the housing 110. The cover may be provided to surround the safety pin (107). The cover (115) can be removed to access the bent part of the safety pin (107). The bent part of the safety pin (107) can be straightened for pulling the safety pin (107) from outside the first circular groove (105) for disassembling the threaded connection. In one embodiment of the description, the first circular groove (105) may be formed in the threaded mouth region of the first coupling end (1033) of the coupler (103) to accommodate the safety pin (107). The first end (101a) of the pipe (101) can be connected to the coupler (103) in a factory non-removable manner and locked with the safety pin (107), so that there will be no inconvenience in removing this end when assembling/disassembling the entire pipeline system. The coupler (103) includes a plurality of ribs (111) on the outer surface, and the plurality of ribs (111) serve as holding supports for the key during compression and loosening operations. Since each coupler (103) has a two-threaded connection [shown in Figure Site], one end of the coupler (103), in other words, the first coupling end (103a) of the coupler (103), can be fixed non-removably to the first end (101a) of the pipe (101). . The inner surface of the coupler (103) may function as a space to accommodate a sealing element between both the first coupling end (103a) and the second coupling end (101a). As is known in the art, the seal may be provided in the groove to function as a fluid seal to prevent leakage. However, supply of the groove may induce voltage buildup in the coupler 103. To alleviate the problem associated with the groove, the groove in the coupler 103, namely the second circular groove as shown in Figure 3, is widened to relieve stresses. The second annular groove 108 is defined by a substantially flat bottom portion 108a having edges 108b. In one embodiment, edges 108b may be defined by a radius to moderate stresses. In an exemplary embodiment, the width of the second circular groove 108 is greater than the pitch of most inner square gears 104. As an example, the width of the second annular groove 108 is at least twice the pitch of the plurality of inner square gears 104 in the coupler 103. As shown in Figure 1, the second annular groove 108 contains the seal, which functions as a fluid seal between the first coupling end 103a and the first end 101a of the pipe 101. In one embodiment, the second circular groove (108) may be provided at the coupling end (103a). The seal used in the second circular groove (108) is a first multi-mouth seal ring (109), as shown in Figures 4A and 4B. The first multi-port sealing ring 109 may be made of any material that functions as a seal between the pipe 101 and the coupler 103. As an example, the first multi-seal may be made of a polymeric material. Referring to Figure 5, the first multi-flap sealing ring 109 has a flat bottom portion 109a on an outer surface and a plurality of inner parts protruding on an inner surface. The first multi-flute sealing ring 109 can be positioned in the second annular groove 108 so that the flat bottom portion 109a remains in the second annular groove 108 and a plurality of internal protrusions 109b project outward from the second annular groove 108 . If the first end (101a) of the pipe (101) is threaded to the first coupling end (103a), many internal protrusions (109b) may be adjacent to the surface of the pipe (101) at the first end (101a). Thus, it creates liquid tightness. In one embodiment, the number of internal protrusions 109b may depend on the requirement for fluid tightness. Figures 4A and 48 show the first multi-flute sealing ring 109 with two and three internal protrusions 10% divided by gaps 1090. Such explanation is for the purpose of understanding and the same should not be considered as a restriction. At the same time, the internal protrusions (109b) extending from the flat surface (109a) are shown in the form of curved edges and the same should not be considered as restrictions. One may configure the edges of the inner protrusions 109b as tapered edges or any other configuration that serves the purpose. It provides better sealing between the first multi-seal and thus prevents any possible fluid leakage from the pipe (101) and the coupler assembly (100). At the same time, the second circular groove (108) reduces stress concentration and thus the notching effect can be prevented in the groove region. Thus, it extends the life of the coupler (103). In one embodiment, the mouth part of the multi-mouth sealing ring (109) extends outwardly from the flat base portion (109a) on the inner side of the multi-mouth sealing ring (109). The mouth portion may also result in a sealing element when the mouth portion of the multi-mouth sealing ring performs the sealing function, thereby preventing leakage. Figure 6 is an exemplary embodiment of the present specification showing a cross-sectional view of the second end 101 b of the pipe 101. The second end (101b) of the pipe (101) can be considered as a temporary end, which can be taken with the second coupling end (103b) of the coupler (103). The second end (101b) is connected to the coupler (103), so that the many inner square-shaped gears (104) at the second coupling end (103b) completely accommodate the outer square-shaped gears (102) at the second end (101b) of the pipe (101). This phase begins at the mouth of the borehole, where assembly/dismantling of the entire pipeline system occurs. The second end 101b of the pipe 101 may be defined by a third circular groove 114 to accommodate the sealing element. In one embodiment, the third circular groove 114 may be provided in a base of a plurality of external square gears 102 [shown in figure 6]. The third circular groove 114 may be profiled to mate with the seal. In one embodiment, the third circular groove 114 The sealing element may include a substantially flat base portion 114a having curved edges 114b, the sealing element being a second polyflute sealing ring 112. ) is adapted to be adjacent to the inner surface of the second coupling end (103b) to form a fluid seal between the second end (101b) of the pipe (101) and the second coupling end (103b) of the coupler (103). , may be provided in a part of the second end (101b) adjacent to the plurality of external square-shaped gears (102). Referring to figures ?A and ?B, the second multi-mouth sealing ring (112) includes a flat base part (112a) on an inner surface. It includes a plurality of outward protrusions (112b) projecting on an external surface, and each of the plurality of outward protrusions (112b) is divided by a space (112c). The second multi-flute sealing ring 112 can be positioned in the second annular groove 108 so that the flat base portion 112a remains in the third annular groove 114 and a plurality of internal protrusions 112b project outward from the third annular groove 114 . If the second end (101b) of the pipe (101) is threaded to the second coupling end (103b), many outward protrusions (112b) may be adjacent to the surface of the coupler (103) at the second coupling end (103b). Thus, it creates liquid tightness. In one embodiment, the number of outward protrusions may depend on the requirement for fluid tightness. Shapes? A and TB show the second multi-flute sealing ring 112 with two and three protrusions divided by spaces. Such explanation is for the purpose of understanding and the same should not be considered as a restriction. It may also have any shape, such as, but not limited to, protrusions extending from the flat surface, curved edges, tapered edges, or any other configuration that serves the purpose. At this point, with reference to Figure 8, this is an exemplary embodiment of the description showing a schematic view of the pipe (101) and coupler (103) assemblies fixed to a submersible pump within the wellbore for drawing water from the source to the relevant point. It will be delivered with the first end (101a) of the pipe (101) for installation in the field, in other words, well drilling, pipe and coupler assembly (100), and will be non-removably connected to the first coupling end (1033). This fixing can be carried out at the factory. The pump, which can be submerged in water during the process of the assembly (100), can be connected to one of the pipe (101) and coupler assembly (100) using a suitable connector [not shown]. The user will then thread the second coupling end (103b) of the coupler (103) to the second end (101b) of the pipe (101), then the process continues until the submersible pump reaches the source. The pipeline system can then be clamped onto it to hold it in place. For any maintenance purposes, the user may only need to open the temporary connection, in other words, the second end (101b) of the pipe (101) having the second coupling end (103b), this can be done by holding the coupler (103) with a pipe wrench and moving it to an upper can unscrew the mating pipe (101) in the section. During this situation, a vice can be used immediately below the coupler (103) to support and grip the pipe and coupler assembly (100). This process is repeated during the removal of each pipe 101 connection to positively hold the coupler 103 with the pipe wrench, the supply being given in the form of two external ribs 111 on the outer surface of the coupler 103. The use of pipe and coupler assembly (100) in well drilling application is an exemplary application of the pipe and coupler assembly (100) of the current description. The assembly 100 may be used in any other application, including floor applications, to serve liquid supply purposes. In one embodiment of the specification, the pipe and coupler assembly 100 manufactured from Polyvinyl Chloride is rigid, lightweight and user-friendly. In one embodiment of the specification, the pipe and coupler assembly 100 having square type gears will have a high load holding capacity. At the same time, the configuration of circular grooves and multi-flute sealing rings ensures tightness at high pump pressure. Equivalents: Depending on the use of substantially plural and/or singular terms herein, those skilled in the art may use plural to singular and/or singular to plural as appropriate to the context and/or application. Various singular/plural permutations can obviously be suggested for intelligibility here. It will generally be understood by those skilled in the art that terms used herein, and particularly in the appended claims (e.g., the set of appended claims), are generally intended as "explicit" terms (e.g., the term "comprising" should be construed as "including but not limited to", "having" The term shall be interpreted as "at least it has", It will also be understood by those skilled in the art that if a specific number of the entered claim expression is intended, such purpose will be expressly conveyed in the claim, and in the absence of such expression, it will be understood that no such purpose exists. For example, to aid understandability, the following appended claims may include the use of introductory phrases "at least one" and "one or more" to introduce the claim statements, however, even in the case of "one or more" or (e.g., , "one" and/or "one" can typically be interpreted to mean "at least one" or "one or more") It should not be construed as restricting any particular claim containing such reference to inventions containing only such reference; The same applies to the use of specific definitions used to introduce claim statements. In addition, even if a specific number of the entered claim expression is explicitly stated, those skilled in the art will understand that such expression should typically be interpreted to mean at least the specified number (e.g., the explicit expression of "two expressions" without other modifiers). typically means at least two expressions or two or more expressions). In addition, in those examples where the implementation parallel to "at least one A, B, and C, and the like" is used, such a structure is generally intended for a person skilled in the art to understand the implementation (e.g., "A, B, and C" "a system having at least one of" may include, but is not limited to, systems having A only, B only, C only, A and B together, A and C together, B and C together, and/or A, B, and C together, and the like. is not). In these examples where the implementation parallel to "at least one of A, B, or C, and the like" is used, in general such a structure is intended to be easy for a person skilled in the art to understand the implementation (e.g., "at least one of A, B, or C" is used). "a system having" may include, but is not limited to, systems having A only, B only, C only, A and B together, A and C together, B and C together, and/or A, B, and C together, and the like). Whether or not in the specification, claims or drawings, it would be understandable for those skilled in the art to consider the possibility that, in the actual situation, any non-binding word and/or expression representing two or more alternative terms may include one of the terms, both of the terms, or both terms. For example, the expression "A or B" will be understood to include the possibilities "A" or "B" or "A and B". If various aspects and embodiments are explained herein, other aspects and embodiments will be understandable to those skilled in the art. The various aspects and embodiments disclosed herein are for illustrative purposes and are not intended to be limiting to the true scope and substance implied by the following claims.TR TR TR TR

Claims (1)

REQUESTS 1. A pipe and coupler assembly (100) made of polyvinyl chloride, said assembly (100) comprising: a pipe (101) having a first end (101a), wherein an outer surface of the first end (101a) is at least a portion of which is provided with a set of external gears (102); a coupler comprising a first coupling end (103a) and a second coupling end (103b) having a series of internal gears (104) on an inner surface divided by a flat portion (1030); A locking means (107) placed in a first round groove (105) formed between the first coupling end (103a) and the first end (101a) of the pipe (101), the locking means, the first coupling end (103a) and the first end of the pipe (101). configured to lock the end (101a); characterized in that the assembly further comprises: wherein the second annular groove 108 is defined by a substantially flat lower part 108a having curved ends 108b; A first polyflute sealing ring (109) accommodated in the second groove (108) to form a fluid seal between It is the mechanism (100) presented according to claim 1, and its feature is that the first multi-mouth sealing ring (109) contains a flat base part (109a) on an outer surface and a series of internal protrusions (109b) protruding on an inner surface. It is the mechanism (100) presented according to claim 2, and its feature is that each of a series of internal protrusions (109b) is divided by a space (1090). It is the mechanism (100) presented according to claim Z, and its feature is that a series of internal protrusions (109b) are adjacent to the outer surface of the first end (101a) of the pipe (101). It is the mechanism (100) presented according to claim 1, and its feature is that the width of the second circular groove (108) is greater than the pitch of a series of inner square gears (104). It is the mechanism (100) presented according to claim 5, and its feature is that the width of the second circular groove (108) is at least twice the pitch of a series of inner square gears (104). It is the mechanism (100) presented according to claim 1. Its feature is that the locking means (107) is a deformable element. It is the mechanism (100) presented according to claim 7, and its feature is that the locking means (107) is made of a metallic material or a polymeric material. It is the mechanism (100) presented according to claim 1, and its feature is that the locking means (107) is a safety pin. It is the mechanism (100) presented according to claim 1, and its feature is that the coupler (103) contains a slot (110) defined on the outer surface adjacent to the tangential hole (106) in order to bend the locking means (107) within an outer diameter of the coupler (103). . It is the mechanism (100) presented according to claim 1, and its feature is that it contains a series of ribs (111) on the outer surface of the coupler (103) to hold a pipe wrench during the assembly and disassembly of the coupler (103) and the pipe (101). It is the mechanism (100) presented according to claim 1, and its feature is that the second end (101b) of the pipe (101) can be taken with the second coupling end (103b) of an adjacent coupler (103) for combining two pipes (101). It is the mechanism (100) presented according to claim 1, and its feature is that it contains a second multi-mouth sealing ring (112) provided on the second end (101b) of the pipe (101). It is the mechanism (100) presented according to claim 13, and its feature is that it is adapted to be adjacent to the inner surface of the second coupling end (103b) in order to create a liquid seal between the second multi-mouth sealing end (103b). It is the mechanism (100) presented according to claim 13, and its feature is that the second multi-mouth sealing ring (112) is provided in a part of the second end (101b) adjacent to a series of outer square-shaped gears (102). It is the mechanism (100) presented according to claim 1, and its feature is that the coupler (103) contains a circular rib (113) extending to the inner surface of the coupler (103) in the flat part (103c). It is the mechanism (100) presented according to claim 1, and its feature is that a series of external gears (102) and a series of internal gears (104) are square-shaped gears.