Mud pipeline central swivel joint with good sealing performance

Abstract

The utility model provides a central swivel joint for a slurry pipeline, which belongs to the technical field of swivel joints and comprises a connecting pipe, a main pipe body, a threaded sleeve and an auxiliary pipe body, the threaded sleeve is hermetically sleeved at one end of the main pipe body, the auxiliary pipe body is in threaded connection with the end of the main pipe body, and the main pipe body is communicated with the inside of the auxiliary pipe body; the clamping pipe comprises a pipe head connected to the end of the auxiliary pipe body in a threaded mode, a main clamping plate connected to the side wall of the end of the pipe head in a clamped mode, an auxiliary clamping plate hinged to the side wall of the main clamping plate, and a rubber sleeve connected to the inner side of the end of the main clamping plate and the inner side of the end of the auxiliary clamping plate in an inserted mode. The utility model has the beneficial effects that through the matching use of the connecting pipe and the clamping pipe, the slurry leakage is effectively prevented, the stable transmission of the slurry in the pipeline is ensured, the pressure and impact force caused by the flowing of the slurry can be borne, the rubber sleeve can be conveniently and finely adjusted, the sealing performance of the pipeline is improved, and the service lives of a pipeline system and the joint are prolonged; and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rotary joint technical field, concretely relates to a central rotary joint for mud pipeline with good sealing. BACKGROUND

[0002] In many industrial fields such as oil drilling, mining, building foundation construction, mud pipeline system plays a vital role. As a special medium, mud undertakes key tasks such as carrying cuttings, cooling drill bit, balancing formation pressure, etc. in these operation processes, and its stable and efficient conveying is directly related to the smooth progress of the whole project. Mud has the characteristics of high viscosity, containing particulate impurities and corrosiveness, which puts forward extremely strict requirements for the central rotary joint for mud pipeline.

[0003] The patent document with the application number CN202311021673.0 proposes a central rotary joint for mud pipeline and a winch mechanism. By setting a filter ring, the mud entering the gap between the inner rotating body and the outer rotating body can be filtered, preventing large sand particles from entering the sealing ring and the gear and causing erosion. By setting a water injection check valve, high-pressure water can be injected from the water injection check valve to flush the sand around the first sealing ring, protecting the first sealing ring and improving its service life. By setting a convex positioning block, left and right positioning and center positioning can be achieved, and the convex positioning block is wear-resistant and has low replacement cost.

[0004] However, due to the special nature of mud, ordinary filter rings cannot effectively filter mud for a long time and are prone to clogging, which affects the use of the rotary joint. In addition, the sealing ring is too small compared to the pipe joint, making it inconvenient to disassemble, maintain, and use. Secondly, under complex working conditions such as high pressure, high speed, and frequent rotation, the connection stability of the rotary joint proposed in the above document is insufficient. Looseness may occur between the components of the joint, causing fluctuations in the mud during transportation, affecting the efficiency and quality of transportation, and making it difficult to adapt to the use of different sizes of pipe joints. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a central rotary joint for mud pipeline with good sealing, which aims to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A central rotary joint for mud pipeline with good sealing, comprising,

[0008] The connecting pipe comprises a main pipe body, a threaded sleeve provided at one end of the main pipe body, and a secondary pipe body threaded at the end of the main pipe body, and the main pipe body and the secondary pipe body are in communication with each other.

[0009] The clamping pipe comprises a pipe head threadedly connected at the end of the auxiliary pipe body, a main clamping plate clamped at the side wall of the end of the pipe head, an auxiliary clamping plate hinged at the side wall of the main clamping plate, and a rubber sleeve inserted at the inner side of the end of the main clamping plate and the auxiliary clamping plate, the rubber sleeve is inserted at the side wall of the end of the pipe head, and the rubber sleeve is in communication with the inside of the pipe head, and the auxiliary clamping plate is clamped at the outer side wall of the end of the pipe head.

[0010] As a preferred scheme of the utility model, the clamping pipe further comprises a clamping block hinged at the end of the auxiliary clamping plate, and a connecting rod fixedly connected at the side wall of the end of the main clamping plate, and the end of the clamping block is clamped at the side wall of the connecting rod.

[0011] As a preferred scheme of the utility model, the side wall of the end of the main clamping plate and the auxiliary clamping plate is provided with a matched bending edge structure, and the rubber sleeve is installed at the inner side of the bending edge of the end of the main clamping plate and the auxiliary clamping plate.

[0012] As a preferred scheme of the utility model, the clamping pipe further comprises an adjusting hole arranged at the side wall of the auxiliary clamping plate, and the rubber sleeve is clamped at the inner side of the adjusting hole.

[0013] As a preferred scheme of the utility model, the connecting pipe further comprises a handle fixedly connected at the side wall of the threaded sleeve, and the thickness of the handle is less than the thickness of the threaded sleeve.

[0014] As a preferred scheme of the utility model, the connecting pipe further comprises a jackscrew threadedly connected at the side wall of the auxiliary pipe body, and the end of the jackscrew penetrates through the auxiliary pipe body and is inserted in the middle of the groove of the side wall of the main pipe body.

[0015] As a preferred scheme of the utility model, the connecting pipe further comprises a sealing ring adaptively installed at the side wall of the end of the auxiliary pipe body, and the outer side wall of the sealing ring is in close contact with the inner wall of the main pipe body.

[0016] Compared with the prior art, the utility model has the advantages that the multiple sealing design of the threaded sleeve, the sealing ring and the rubber sleeve effectively prevents mud leakage, ensures stable transmission of mud in the pipeline, avoids pollution to the surrounding environment, and also ensures normal operation of the pipeline system. The clamping structure of the main clamping plate and the auxiliary clamping plate, the locking device of the clamping block and the connecting rod, and the fastening effect of the jackscrew on the main pipe body and the auxiliary pipe body make the connection of each part of the joint compact and not easy to loosen, and can withstand the pressure and impact force brought by mud flow. The design of the handle facilitates manual operation of the threaded sleeve by the operator, realizes quick connection and disassembly, and the setting of the adjusting hole facilitates fine adjustment of the rubber sleeve and improves the adjustability of the sealing performance. Good sealing and stable connection reduce the corrosion and damage of equipment caused by mud leakage, prolong the service life of the pipeline system and the joint, and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the side structure of the present application;

[0020] Figure 3 It is a schematic diagram of the front structure of the present application;

[0021] Figure 4 It is a schematic diagram of the internal structure of the connecting pipe of the present application.

[0022] In the figure: 100, connecting pipe; 101, main pipe body; 102, threaded sleeve; 103, auxiliary pipe body; 104, handle; 105, jackscrew; 106, sealing ring; 200, clamping pipe; 201, pipe head; 202, main clamping plate; 203, auxiliary clamping plate; 204, rubber sleeve; 205, clamping block; 206, connecting rod; 207, adjusting hole. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the concept of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0026] EMBODIMENT

[0027] REFERENCE Figures 1-4For the embodiment of the utility model, the embodiment provides a central rotary joint with good sealing performance for mud pipeline, which comprises,

[0028] The connecting pipe 100 comprises a main pipe body 101, a threaded sleeve 102 arranged at one end of the main pipe body 101, and a secondary pipe body 103 threadedly connected to the end of the main pipe body 101, and the main pipe body 101 is in communication with the secondary pipe body 103 inside.

[0029] The clamping pipe 200 comprises a pipe head 201 threadedly connected to the end of the secondary pipe body 103, a main clamping plate 202 clamped to the side wall of the end of the pipe head 201, a secondary clamping plate 203 hingedly connected to the side wall of the main clamping plate 202, and a rubber sleeve 204 inserted into the inner side of the end of the main clamping plate 202 and the secondary clamping plate 203, the rubber sleeve 204 is inserted into the side wall of the end of the pipe head 201, and the rubber sleeve 204 is in communication with the inside of the pipe head 201, and the secondary clamping plate 203 is clamped to the outer side wall of the end of the pipe head 201.

[0030] The main pipe body 101 serves as the main channel for mud flow and is in communication with the secondary pipe body 103 to provide a stable transmission path for the mud. The threaded sleeve 102 enhances the sealing performance when the main pipe body 101 is connected to other components, preventing mud leakage. The tight fit of the threads, combined with the sealing design, effectively prevents mud from seeping out of the connection. The main clamping plate 202 is clamped to the side wall of the end of the pipe head 201 and is used in cooperation with the secondary clamping plate 203 to install the rubber sleeve 204, firmly fixing the rubber sleeve 204 between the main clamping plate 202 and the secondary clamping plate 203, facilitating opening and closing, and realizing clamping and loosening of the pipe head 201. The secondary clamping plate 203 is clamped to the outer side wall of the end of the pipe head 201, and together with the main clamping plate 202, it forms a clamping force on the pipe head 201 to ensure the stability of the connection of the pipe head 201. It is convenient to connect other sizes of pipelines through the rubber sleeve 204, especially pipelines without threads, to maintain the sealing performance of the pipeline connection and prevent pipeline leakage.

[0031] Specifically, the clamping pipe 200 further comprises a clamping block 205 hingedly connected to the end of the secondary clamping plate 203, and a connecting rod 206 fixedly connected to the side wall of the end of the main clamping plate 202, and the end of the clamping block 205 is clamped to the side wall of the connecting rod 206.

[0032] The clamping block 205 cooperates with the connecting rod 206, and when the secondary clamping plate 203 is closed, the end of the clamping block 205 is clamped to the side wall of the connecting rod 206, locking the main clamping plate 202 and the secondary clamping plate 203 to prevent accidental loosening.

[0033] Further, the end side walls of the main clamping plate 202 and the secondary clamping plate 203 are provided with matching bending edge structures, and the rubber sleeve 204 is installed inside the bending edges of the ends of the main clamping plate 202 and the secondary clamping plate 203.

[0034] The rubber sleeve 204 is firmly fixed between the main clamping plate 202 and the auxiliary clamping plate 203 through the close fit of the bent edge, preventing the rubber sleeve 204 from loosening.

[0035] Further, the clamping pipe 200 further comprises an adjusting hole 207 arranged on the side wall of the auxiliary clamping plate 203, and the rubber sleeve 204 is clamped on the inner side of the adjusting hole 207.

[0036] The side wall of the auxiliary clamping plate 203 is further provided with an adjusting hole 207, and the rubber sleeve 204 is clamped on the inner side of the adjusting hole 207. The position and sealing performance of the rubber sleeve 204 can be fine-tuned through the adjusting hole 207.

[0037] Preferably, the connecting pipe 100 further comprises a handle 104 fixedly connected to the side wall of the threaded sleeve 102, and the thickness of the handle 104 is less than that of the threaded sleeve 102.

[0038] The handle 104 fixedly connected to the side wall of the threaded sleeve 102 has a thickness less than that of the threaded sleeve 102, which facilitates the manual rotation of the threaded sleeve 102 by the operator, realizes the connection or disassembly with other components, and improves the convenience of operation.

[0039] It should be noted that the connecting pipe 100 further comprises a top wire 105 threadedly connected to the side wall of the auxiliary pipe body 103, and the end of the top wire 105 penetrates through the auxiliary pipe body 103 and is inserted into the middle of the groove in the side wall of the main pipe body 101.

[0040] The top wire 105 threadedly connected to the side wall of the auxiliary pipe body 103 has an end penetrating through the auxiliary pipe body 103 and being inserted into the middle of the groove in the side wall of the main pipe body 101. By tightening the top wire 105, the connection between the main pipe body 101 and the auxiliary pipe body 103 can be further fixed, preventing loosening of the two during mud flow.

[0041] Preferably, the connecting pipe 100 further comprises a sealing ring 106 adaptively installed on the end side wall of the auxiliary pipe body 103, and the outer side wall of the sealing ring 106 is in close contact with the inner wall of the main pipe body 101.

[0042] The sealing ring 106 adaptively installed on the end side wall of the auxiliary pipe body 103 has an outer side wall in close contact with the inner wall of the main pipe body 101, which further strengthens the sealing performance of the connection and ensures stable transmission of the mud between the main pipe body 101 and the auxiliary pipe body 103 without leakage.

[0043] In use, when the mud is transported through the pipeline, it first enters the main pipe body 101. Due to the sealing effect of the threaded sleeve 102 and the sealing ring 106, the mud will not leak from the connection between the main pipe body 101 and the auxiliary pipe body 103. After the mud flows from the main pipe body 101 into the auxiliary pipe body 103, it enters the pipe head 201. At this time, the main clamp plate 202 and the auxiliary clamp plate 203 are tightly clamped to the pipe head 201 through the cooperation of the clamping block 205 and the connecting rod 206. The rubber sleeve 204 tightly adheres to the pipe head 201 under the fixation of the bent edge, preventing the mud from leaking from the connection between the pipe head 201 and the main clamp plate 202 and the auxiliary clamp plate 203. The operator can conveniently rotate the threaded sleeve 102 through the handle 104 to realize the installation and disassembly of the connecting pipe and other components; by adjusting the top screw 105, the connection between the main pipe body 101 and the auxiliary pipe body 103 can be further tightened; by adjusting the hole 207, the sealing performance of the rubber sleeve 204 can be fine-tuned to ensure the sealing and stability of the entire rotary joint during the mud transmission process.

[0044] In summary, through the multiple sealing design of the threaded sleeve, the sealing ring, and the rubber sleeve, mud leakage is effectively prevented, ensuring stable transmission of mud in the pipeline, avoiding pollution to the surrounding environment, and also ensuring the normal operation of the pipeline system. The clamping structure of the main clamp plate and the auxiliary clamp plate, the locking device of the clamping block and the connecting rod, and the tightening effect of the top screw on the main pipe body and the auxiliary pipe body make the connection between the parts of the joint tight and not easy to loosen, and can withstand the pressure and impact force brought by the flow of mud. The design of the handle facilitates the operator to manually operate the threaded sleeve, realizing quick connection and disassembly; the setting of the adjustment hole can conveniently fine-tune the rubber sleeve, improving the adjustability of the sealing performance. Good sealing and stable connection reduce the corrosion and damage of mud leakage to equipment, prolong the service life of the pipeline system and the joint, and reduce maintenance costs.

[0045] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0046] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0047] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes, and omissions of parts illustrated as having a specific configuration. Such are the natural consequences of research and development efforts, and

[0048] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A central swivel for mud piping with good sealing, characterized by: The utility model relates to a connecting pipe (100) and clamping pipe (200) for connecting pipe (100), it includes the main pipe body (101), the threaded sleeve (102) of sealing cover setting in the main pipe body (101) one end, and the auxiliary pipe body (103) of threaded connection in the main pipe body (101) end, the main pipe body (101) with the auxiliary pipe body (103) inside communication, Clamping pipe (200) includes pipe head (201) threaded connection in the auxiliary pipe body (103) end, main clamping plate (202) is clamped in the side wall of pipe head (201) end, vice clamping plate (203) is hinged in the side wall of main clamping plate (202), and rubber sleeve (204) is inserted in the inside of main clamping plate (202) and vice clamping plate (203) end, rubber sleeve (204) is inserted in the side wall of pipe head (201) end, and rubber sleeve (204) with pipe head (201) inside communication, vice clamping plate (203) is clamped in the outside wall of pipe head (201) end. The clamping pipe (200) further includes a clamping block (205) hinged to the end of the vice clamping plate (203), and a connecting rod (206) fixedly connected to the side wall of the end of the main clamping plate (202), the end of the clamping block (205) is clamped to the side wall of the connecting rod (206).

2. A central swivel for mud piping according to claim 1, wherein: The end side wall of the main clamping plate (202) and the vice clamping plate (203) is provided with a matching bending edge structure, and the rubber sleeve (204) is installed in the inside of the bending edge of the end of the main clamping plate (202) and the vice clamping plate (203).

3. A central swivel for mud piping according to claim 2, wherein: The clamping pipe (200) further includes an adjusting hole (207) provided in the side wall of the vice clamping plate (203), and the rubber sleeve (204) is clamped in the inside of the adjusting hole (207).

4. A central swivel for mud piping according to claim 3, wherein: The connecting pipe (100) further includes a handle (104) fixedly connected to the side wall of the threaded sleeve (102), and the thickness of the handle (104) is less than the thickness of the threaded sleeve (102).

5. A central swivel for mud piping according to claim 4, wherein: The connecting pipe (100) further includes a top screw (105) threadedly connected to the side wall of the auxiliary pipe body (103), and the end of the top screw (105) penetrates the auxiliary pipe body (103) and is inserted in the middle of the recess in the side wall of the main pipe body (101).

6. A central swivel for a slurry conduit according to claim 5, characterized in that: The connecting pipe (100) further includes a sealing ring (106) adaptively installed in the end side wall of the auxiliary pipe body (103), and the outer side wall of the sealing ring (106) is in close contact with the inner wall of the main pipe body (101).

7. A central swivel for a slurry conduit according to claim 6, characterized in that: ​

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