Wedge-caulking type friction anchoring mechanism applied to pipeline construction

Abstract

A wedge-caulking type friction anchoring mechanism applied to pipeline construction comprises an upper connector and a lower connector which are mutually inserted and wedged. The first wedge and the second wedge are arranged in the accommodating cavity and formed on the bottom wall; a wedge cavity with the upper portion narrower than the lower portion is formed between the first wedge and the second wedge. The upper connector is provided with a friction anchoring part inserted into the wedge cavity opening groove. The width of the wedge cavity opening groove is smaller than that of the friction anchoring part, a plurality of continuous non-return protruding hooks are arranged on the two sides of the friction anchoring part, and the friction anchoring part is clamped by the first wedge and the second wedge after being placed in the wedge cavity opening groove to increase friction force between the friction anchoring part and the two side walls of the wedge cavity opening groove so as to be anchored to prevent loosening. Interlocking wedge-caulking type friction anchoring, linkage self-locking inner sealing and multi-stage self-locking inner sealing are creatively integrated with mechanical multi-stage acting force and counter-acting force mechanisms, and three-dimensional multi-stage mechanical interlocking and multi-stage self-locking inner sealing are achieved at the same time. The invention has the advantages of tensile failure prevention, looseness prevention, leakage prevention, safety, reliability and firm structure.

Description

TECHNICAL FIELD

[0001] The application relates to a wedge-tightening friction anchoring mechanism applied to pipeline construction. BACKGROUND

[0002] With the continuous development and promotion of the national strength and economic construction of China, the infrastructure manufacturing products and construction technologies of China are gradually moving towards the top level in the world. However, in municipal engineering pipeline construction, especially horizontal directional drilling construction is a kind of construction machinery for laying various underground public facilities (pipes, cables, etc.) under the condition of not excavating the ground surface. The horizontal directional drilling machine is widely applied to the pipeline laying construction of water supply, power supply, telecommunications, natural gas, coal gas, petroleum, etc. It is suitable for sandy soil, clay, etc. and is not suitable for high underground water level and pebble stratum. The horizontal directional drilling machine can be constructed in most non-hard rock areas in China. The working environment temperature is-15 DEG C to +45 DEG C. The horizontal directional drilling technology is a new construction technology combining the directional drilling technology of the petroleum industry and the traditional pipeline construction method. The horizontal directional drilling technology has the characteristics of fast construction speed, low construction precision, low cost, etc. and is widely applied to the pipeline laying construction of water supply, coal gas, power supply, telecommunications, natural gas, petroleum, etc. The horizontal directional drilling equipment has also obtained rapid development in the past ten years and has become a new industry in developed countries. The development trend is towards large and small sizes, adaptation to hard rock operation, self-provided anchoring system, automatic stacking and extraction of drill pipes, automatic lubrication of drill pipe connection, anti-electric shock system, automatic operation function, super-depth guidance monitoring, wide application range, etc. The construction is generally suitable for steel pipes (screwed and welded connection technology) with a pipe diameter of phi 300 to phi 1200 mm and PE pipes (hot melting connection). The pipe flanges are screwed. The construction is suitable for soft soil to hard rock soil conditions. However, the underground construction space of cities is small, which is not conducive to the above-mentioned existing pipeline operation. The traditional composite pipe has the risk of creep and stress relaxation in super-long distance and complex geological dragging and is dragged off the joint. The broken pipe is difficult to take out and greatly affects the construction progress. In order to overcome the above-mentioned defects, the application develops a wedge-tightening friction anchoring mechanism applied to pipeline construction. SUMMARY

[0003] The wedge-tightening friction anchoring mechanism applied to pipeline construction has the advantages that the mechanical multi-stage force and reaction force mechanism is interlocked, the linkage self-locking inner seal is combined, the mechanism is safe and reliable, the structure is firm, various construction sites are suitable, the superiority of the mechanism is fully displayed in underground construction of cities, the construction occupies less land, and the construction is fast.

[0004] In order to achieve the above-mentioned purpose, the wedge-tightening friction anchoring mechanism applied to pipeline construction comprises an upper joint and a lower joint which are mutually inserted and wedged.

[0005] The lower joint comprises a plug-in part with an upwardly open mouth; a lower part of the plug-in part is fixedly connected with a joint ring; the plug-in part comprises a bottom wall, an inner ring wall and an outer ring wall, the inner ring wall and the outer ring wall are folded upwardly relative to the bottom wall to form a containing cavity; a first wedge and a second wedge are located in the containing cavity and formed on the bottom wall; a wedge cavity with a narrow upper part and a gradually widened lower part is formed between the first wedge and the second wedge;

[0006] The upper joint has a friction anchoring part with a wedge cavity opening slot; the width of the wedge cavity opening slot is smaller than the width of the friction anchoring part, and a plurality of continuous check protrusion hooks are arranged on both sides of the friction anchoring part; after the friction anchoring part is inserted into the wedge cavity opening slot, the friction anchoring part is clamped by the first wedge and the second wedge, the friction force between the friction anchoring part and the side walls of the wedge cavity opening slot is increased, and the anchoring is achieved to prevent loosening.

[0007] In one or more embodiments of the present application, the upper joint has a first wedge pressing arm and a second wedge pressing arm, a first wedge slot is formed between the first wedge and the inner wall of the outer ring wall for inserting the first wedge pressing arm and abutting against the outer wall of the first wedge, and the first wedge pressing arm is pressed against the first wedge to prevent the first wedge from being opened relative to the second wedge.

[0008] In one or more embodiments of the present application, the outer wall of the first wedge provides a first embedding groove for a first sealing ring, the inner wall of the first wedge pressing arm extrudes the outer wall of the first wedge, and the friction anchoring part is inserted into the wedge cavity opening slot to be clamped and linked to extrude the first sealing ring to achieve interlocking sealing.

[0009] In one or more embodiments of the present application, the outer wall of the second wedge provides a second embedding groove for a second sealing ring, the inner wall of the second wedge pressing arm extrudes the outer wall of the second wedge, and the friction anchoring part is inserted into the wedge cavity opening slot to be clamped and linked to extrude the second sealing ring to achieve self-locking sealing.

[0010] In one or more embodiments of the present application, the outer side of the first wedge pressing arm is pressed by the outer ring wall, and the outer side of the second wedge pressing arm is pressed by the inner ring wall, so that the first wedge pressing arm, the second wedge pressing arm, the first wedge and the second wedge press the friction anchoring part in multiple levels towards the center, the friction anchoring part is inserted into the wedge cavity opening slot while extruding the first wedge and the second wedge, and then extruding the first wedge pressing arm and the second wedge pressing arm outward to form a self-anchoring lock.

[0011] In one or more embodiments of the present application, the wall thickness of the first wedge pressing arm gradually increases from the mouth to the bottom wall.

[0012] Compared with the prior art, the present application has the following effects:

[0013] Due to the above-mentioned scheme, the mechanical multi-stage force and reaction force mechanism interlocking wedge-tight friction anchoring is superpositionally collected, and the linkage self-locking inner sealing is combined, which is safe and reliable, and the structure is firm. It is suitable for various construction sites, especially when used in urban underground construction, the superiority can be fully displayed, and the construction occupies less land, has the characteristics of fast construction speed, low construction precision, low cost and the like, and is widely applied to pipeline laying construction of water supply, gas, power, telecommunication, natural gas, oil and the like. Therefore, it is a pipeline connecting structure with superiorities in economy and technology. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a partial cross-sectional structure schematic diagram of a wedge-tight friction anchoring mechanism applied to pipeline construction in an embodiment of the present application;

[0015] Figure 2 FIG. 2 is an expanded structure schematic diagram of the wedge-tight friction anchoring mechanism applied to pipeline construction in the embodiment of the present application; Figure 1

[0016] Figure 3 FIG. 3 is a partial cross-sectional structure schematic diagram of the wedge-tight friction anchoring mechanism applied to pipeline construction in the embodiment of the present application;

[0017] Figure 4 FIG. 4 is an expanded structure schematic diagram of the wedge-tight friction anchoring mechanism applied to pipeline construction in the embodiment of the present application; Figure 3

[0018] Figure 5 Figure 3 DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and the embodiments are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout.

[0020] In the following description, the "connection" term should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection; it can be direct connection, or connection through intermediate medium; it can be internal connection of two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0021] ​​​​In the present application, unless otherwise specified and limited, the first feature is "on" or "under" the second feature can include the first and second features directly contact, but also can include the first feature and the second feature is not directly contact but through the other features between them contact. Moreover, the first feature is "on", "under" and "above" the second feature includes the first feature is directly above and obliquely above the second feature, or just means the first feature horizontal height is higher than the height of the second feature. The first feature is "on", "under" and "under" the second feature includes the first feature is directly below or obliquely below the second feature, or just means the first feature horizontal height is lower than the second feature. The embodiment of up and down is only the drawing orientation for easy reading understanding, and is not a limitation or specification of the exact direction.

[0022] In combination with the above description, those skilled in the art can make adaptive adjustment and understanding, and refer to the drawings of the specification, and through further description of the specific embodiments of the present application, the technical scheme of the present application and its beneficial effects are more clear and explicit. The following description of the embodiments by referring to the drawings is exemplary, and is intended to illustrate and explain the present application, and cannot be understood as a limitation of the present application.

[0023] Referring to Figures 1-5 As shown, the first embodiment provided by the present application is a wedge friction anchoring mechanism applied to pipeline construction, comprising: an upper joint 1 and a lower joint 2 which are inserted and wedged with each other;

[0024] The lower joint 2 comprises an insertion part 21 with an upward open port; a joint ring 22 is fixedly connected to the lower part of the insertion part 2; the insertion part 21 comprises a bottom wall 211, an inner ring wall 212 and an outer ring wall 213, the inner ring wall 212 and the outer ring wall 213 are folded upward relative to the bottom wall to form a containing cavity 214; a first wedge 215 and a second wedge 216 are located in the containing cavity 214 and formed on the bottom wall; a wedge cavity 217 with narrow top and gradually wide bottom is formed between the first wedge 215 and the second wedge 216;

[0025] The upper joint 1 has a friction anchoring part 11 of the plug-in wedge cavity opening slot 218; the width of the wedge cavity opening slot 218 is slightly smaller than the width of the friction anchoring part 11, and the friction anchoring part 11 has a plurality of continuous check convex hooks 111 on both sides, which is anchored by the clamping of the second wedge 216 of the first wedge 215 to increase the friction force between the friction anchoring part 11 and the two side walls of the wedge cavity opening slot 218 to prevent loosening. The upper joint 1 has a first wedge pressing arm 12 and a second wedge pressing arm 13, and the first wedge slot 219 is formed between the first wedge 215 and the inner wall of the outer ring wall 213 for the first wedge pressing arm 12 to insert and abut against the outer wall of the first wedge 215, and the first wedge pressing arm 12 is pressed against the first wedge 215 to prevent the first wedge 215 from opening relative to the second wedge 216.

[0026] The outer wall of the first wedge 215 provides a first embedding groove for the first sealing ring 3, and the inner wall of the first wedge pressing arm 12 extrudes the outer wall of the first wedge 215, and the friction anchoring part 11 is inserted into the wedge cavity opening slot 218 to be clamped and linked to extrude the first sealing ring 3 for interlocking sealing.

[0027] The outer wall of the second wedge 216 provides a second embedding groove for the second sealing ring 4, and the inner wall of the second wedge pressing arm 13 extrudes the outer wall of the second wedge 216, and the friction anchoring part 11 is inserted into the wedge cavity opening slot to be clamped and linked to extrude the second sealing ring 4 for self-locking internal sealing. In underground construction, self-locking internal sealing is particularly important and critical, but there is no operating space in the pipe, and the sealing outside the pipe is easy to be filled with sand and other materials in the construction environment, and it is not easy to perform complete sealing operation.

[0028] The outer side of the first wedge pressing arm 12 is pressed by the outer ring wall 213, and the outer side of the second wedge pressing arm 13 is pressed by the inner ring wall 214, so that the first wedge pressing arm 12, the second wedge pressing arm 13, the first wedge 215 and the second wedge 216 press the friction anchoring part 11 in multiple stages to the center to form a self-anchoring lock when the friction anchoring part 11 is inserted into the wedge cavity opening slot and extrudes the first wedge 215 and the second wedge 216 outward, and then extrudes the first wedge pressing arm 12 and the second wedge pressing arm 13 outward to form a self-anchoring lock. The friction anchoring part 11 is a circular ring.

[0029] In order to provide sufficient support against deformation, the wall thickness of the first wedge pressing arm 12 gradually thickens from the mouth to the bottom wall. The second wedge pressing arm 12 is similarly structured.

[0030] In use, the upper joint 1 and the lower joint 2 are inserted into each other and wedged, so that the outer side of the first wedge arm 12 is pressed by the outer ring wall 213, and the outer side of the second wedge arm 13 is pressed by the inner ring wall 214, and then the first wedge arm 12, the second wedge arm 13, the first wedge 215 and the second wedge 216 are centrally and multi-staged superimposed to press the friction anchoring part 11, and when the friction anchoring part 11 is placed into the wedge cavity opening slot, the first wedge 215 and the second wedge 216 are extruded outward, and then the first wedge arm 12 and the second wedge arm 13 are extruded outward to form a self-anchoring lock. The wedge-tight friction anchoring mechanism is interlocked by the superposition of mechanical multi-stage forces and reaction forces, and is combined with a linkage self-locking inner seal, and is a three-dimensional multi-stage mechanical interlocking self-locking inner seal. It is safe and reliable, and the structure is firm. It is suitable for various construction sites, especially in urban underground construction, which can fully display its superiority, and has the characteristics of less construction land, fast construction speed, low construction precision and low cost, and is widely used in pipeline laying construction of water supply, gas, electricity, telecommunications, natural gas, oil and other pipelines. Therefore, it is an economical and technically superior pipeline connecting structure. Although the present application has been described in accordance with the preferred embodiments, there are modifications, substitutions and equivalent schemes within the scope of the present application. It should be noted that there are many alternative ways to implement the present application; therefore, the appended claims are intended to include all such modifications, substitutions and equivalent schemes within the true spirit and scope of the present application.

[0031] Through the above description of the structure and principle, those skilled in the art should understand that the present application is not limited to the specific embodiments described above, and improvements and substitutions of known techniques in the art based on the present application all fall within the protection scope of the present application, which should be defined by the claims.

Claims

1. A wedge-type friction anchoring mechanism for use in pipe installation, characterized by, The utility model relates to a kind of upper joint and lower joint of mutual plug-in wedge, comprising: The lower joint includes the plug-in part of upward open mouth portion;The plug-in part lower part is fixedly connected with the joint ring;The plug-in part includes bottom wall, inner ring wall and outer ring wall, and inner ring wall and outer ring wall are folded upwards relative to bottom and form accommodating cavity;First wedge and second wedge are located in the accommodating cavity and formed on the bottom wall;The wedge cavity opening slot of the wedge cavity opening slot is smaller than the width of the friction anchor part, and the friction anchor part has a plurality of continuous check convex hooks on both sides, and the friction anchor part is anchored after being inserted into the wedge cavity opening slot, to prevent loosening. The upper joint has first wedge pressing arm and second wedge pressing arm, and the first wedge slot is formed between the first wedge and the inner wall of outer ring wall for the insertion of first wedge pressing arm and abutting to the outer wall of first wedge, and the first wedge is pressed by the first wedge pressing arm to prevent the first wedge from opening relative to the second wedge. The outer wall of the first wedge provides first embedding slot for first sealing ring, and the inner wall of the first wedge pressing arm extrudes the outer wall of the first wedge, and the friction anchor part is clamped and linked to extrude the first sealing ring when being inserted into the wedge cavity opening slot, to realize interlocking sealing.

2. A wedge-type friction anchoring mechanism for use in pipe installation as defined in claim 1, wherein The outer wall of the second wedge provides second embedding slot for second sealing ring, and the inner wall of the second wedge pressing arm extrudes the outer wall of the second wedge, and the friction anchor part is clamped and linked to extrude the second sealing ring when being inserted into the wedge cavity opening slot, to realize self-locking sealing.

3. A wedge friction anchoring system for use in pipe installation as defined in claim 2 wherein, The outer side of the first wedge pressing arm is pressed by the outer ring wall, and the outer side of the second wedge pressing arm is pressed by the inner ring wall, so that the first wedge pressing arm, the second wedge pressing arm, the first wedge and the second wedge press the friction anchor part in multiple levels to the center, and the friction anchor part is inserted into the wedge cavity opening slot while extruding the first wedge and the second wedge, and then extruding the first wedge pressing arm and the second wedge pressing arm to the outside, to form self-anchoring lock.

4. A wedge friction anchoring system for use in pipe installation as defined in claim 3 wherein, The wall thickness of the first wedge pressing arm gradually increases from the mouth to the bottom.

5. A wedge friction anchoring system for use in pipe installation as defined in claim 4 wherein, ​ 6. A wedge-type friction anchoring mechanism for use in pipe installation as defined in claim 5, wherein ​

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