JPS604688A - Tubular conduit connecting system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to geological instruments used to create subsurface records, such as tilt due to crustal deformation, presence of water in holes, pressure, etc. The present invention relates to a tubular conduit connection system for tubular members usefully used in assemblies of long tubular casings placed underground. Of course, while one is normally able to assemble tubular systems that do not use liquid-tight means and include other features common to the geological and geophysical recording and sampling fields, the invention is also useful in other fields. will be used.

Generally, a tubular casing is inserted into the earth in a well or drill hole, and various devices are moved within the hole to create geophysical records. Typical equipment for detecting and determining the movement of geological structures is
It is called a side slope meter. Fluid or gas pressure measuring devices are commonly referred to as manometers. Generally, such gravure gauges and pressure gauges are shaped like a torpedo moving through a tubular casing. In the case of side slope a], the device has a pair or pairs of rollers or wheels arranged at an angle of 90° to each other. The glinometer or slope-sensing casing has a longitudinal groove that receives the fish-shaped torpedo, directs it, and directs it, usually by means of rollers or wheels.

Facilitates the production of unassembled casing parts,
To facilitate MttQ, its length is generally about 3
m (10 feet).

It has been found that a number of couplings between the casing parts provided end-to-end are required to adequately assemble the parts to yield a casing of elongated length.

Although the present invention is formed with mainly longitudinal grooves oriented in a certain direction, the present invention does not require adhesives and has a simple sliding fit and snap-locking means. The present invention relates to a male and female coupling system 11 that facilitates the establishment of j and tn.

A known prior art example is U.S. Pat.
No. 8,788, this U.S. patent shows a coupling in the form of a sleeve for receiving the end of a tubular casing part. The parts are fixed together against longitudinal displacement by flexible pincer fastening elements inserted into annular receiving channels that work together in pairs, which are part of the sleeve and part of the casing part. . Also, a liquid tight O-IJ thong gurl means is used between the interior of the sleeve and the exterior of the casing part.

The main objective of the invention is to eliminate the need to use flexible pinch fixation elements and to
An improved coupling system is provided for the quick fixed assembly of casing parts and couplings that can be manipulated by simple and convenient end-to-end or longitudinal sliding motion.

Another tube-to-sleeve fixation system using mating grooves and flexible pincer fixation elements is described in U.S. Pat. No. 3,934,615, issued to Luckonisly and Gamble on January 27, 1976. .

Also, U.S. Pat. No. 3,606,402, issued to Medney on September 20, 1971, describes flexible pinch fastening elements for use in connecting tubular assemblies. Prior to the present invention described herein, applicants are unaware of a flexible, extensible, internally-operated tube-to-sleeve connection for a substantially precise, continuous subsurface tubular survey device.

In internally grooved casing components, the grooves through which the assembly passes are required to be oriented and continuous. In the prior art described above, this is accomplished by providing a reducing hole in the shoulder in the coupling sleeve where the ends of the opposing casing parts abut. Such a shrinking inner part has a tab formed towards the outside, and the end of the casing part is oriented and U-shaped to engage with said tongue to prevent rotation. is marked with a cut. Also, the end of the casing part is brought into contact with the shoulder of the shrinking hole.

Another object of the invention is to provide a simple system for boss element and coupling devices that can be easily separated and inserted. Yet another object is to provide direct end-to-end contact of the opposed casing parts, with the I-rack of the internal groove being almost continuous, except for the reduced hole in the coupling.

One method widely used for end-to-end connections of tubular bodies is to have a hole with a diameter essentially the same as the outside diameter of the tubular casing part, and to guide the casing part into the internal groove array. The purpose of the present invention is to provide a coupling with a key mechanism.

An adhesive is then used so that the coupling and casing parts are glued together in a permanent bond. As a result, the assembly cannot be disassembled without damaging the ends of the casing parts. Without mounting unidirectional bosses on the coupling during its assembly, the present invention does not require adhesives for field assembly. Its disassembly involves helically cutting the coupling from end to end, as the coupling becomes larger in diameter so that the casing parts can be retracted without damage.

This is done by performing other suitable cutting operations.

For the purposes set forth above and those that will become apparent from the following detailed description, the present invention encompasses a coupling system for an essentially tubular member, preferably a cylindrical tubular member.

In this coupling system, there is a nipple part that is released at the end of the tubular body, which is formed with some attachment means that are biased inwardly by radially directed forces. This attachment means has a segmented shoulder collar extending cylindrically around the end of the nipple portion so as to form an external projection □ with a fixed shoulder. This Im stand receives a nipple split piece with a spring,
This is done by inserting the nipple into the coupling in the form of a sleeve with an interior so as to form an inwardly biased socket. receiving and automatically interlocking collars on the split shoulder on the nipple to mechanically secure the coupling assembly by fully inserting the nipple into the coupling;
There are dents and shoulders.

For this application, where the tubular body and the coupling are used as a casing for geological and geophysical recording and sampling purposes, the coupling system forms a directional means and/or a fluid sealing means. be able to. This orienting means is a boss located longitudinally in the recessed portion of the inner cylinder of the coupling, which is connected to one or more spring-loaded segments of the nipples of each of the connecting tubular bodies. The formed U-shaped cut in a certain direction and the boss are fitted.

The unidirectional U-shaped cuts are placed at precisely predetermined positions with respect to the internal groove. The fluid sealing means includes a shallow shoulder formed in the nipple or coupling at a location that releases from the end of the slot between the springy halves of the nipple and creates a seal between the outer surface of the nipple and the inner surface of the coupling. This is an O-ring installed in the groove of the The preferred embodiment of the invention and its accompanying drawings describe a tubular body and a coupling joining the longitudinally oriented means and the fluid sealing means. In this new tubular coupling system, those means are eliminated if the need is lacking, without compromising the simplicity of construction and ease of field assembly.

Referring to FIG. 1, in the portion of the tubular body 10.12 arranged end to end, this tubular body 10.12
A suitable coupling 14 is received which is assembled in series and through others similarly assembled.

The tubular body 10.12 has a nipple 16 at each end and an internal groove 18 extending spaced end-to-end around the inner surface. Generally, four equally spaced W2Bs are best shown in FIGS. 2 and 3. The nipple 15 has a smaller diameter than the main body of the tubular body 10.12 and is connected by an annular shoulder 20 to the tubular body 10.12.
It is covered from the main body of. Each nipple 16 is divided by a slot 22 into an inwardly biasable spring-loaded segment 24, or into three as best shown in FIG. The end of this segment 24 has a segmented shoulder collar extending cylindrically around the end of the nipple 16, which collar forms an external projection 26 with a shoulder 28 provided thereon. In the illustrated embodiment, the tubular body 10.12 is reduced in diameter between the shoulders 20 and 28 by a woodcutter or formed to a smaller diameter than the outer diameter of the tubular body. Formed by zones.

The end of each tubular body has a unidirectional U-shaped cut 30. The nipple is provided with a groove and an O-ring 48 between the shoulder 20 and the end of the slot 22.

Referring again to FIG. 1, the sleeve-like coupling 1
4 has an opposed opening 32 forming a socket into which the nipple 16 of the tubular body is inserted for assembly of the coupling system. The inner diameter of each opening 32 is substantially equal to the diameter of the nipple 16 and slightly smaller than the outer diameter of the protrusion 26, so that when the same object is inserted into the opening 32,
The spring-loaded halves 24 are biased inwardly by the slots 22. The end of the opening 32 has an inwardly directed bevel to facilitate the insertion of the nipple 16, which has a beveled surface conforming to the circumference of the end for the same purpose.

The coupling 14 has a cylindrical recess 36, and the recess 36 has a boss 38 with both ends oriented in a fixed direction at a fixed position in the middle of the length of the coupling 14. A boss 38 having an inner surface coplanar with the inner diameter of the nipple 16 is adapted to engage with a unidirectional U-shaped cut 30 at each end of the tubular body 10112. When the nipple 16 is pressed against the coupling 14 by the spring-biased split piece 24, the nipple 16 reaches the boss 38 and the recess 36. Once the boss 38 is oriented to engage the oriented U-shaped cut 30, the nipple 16 is further inserted until the projection 26 is snugly seated in the recess 36;
The biasing force of the dividing piece 24 is then restored. Due to the inherent spring characteristics of the dividing piece 24, the shoulder 28 is recessed 3.
6 engages an internal annular shoulder 39. This guides and connects the tubular body and prevents the nipple 16 from being withdrawn from within the coupling 14 until the split pieces are deflected inwards again in an attempt to withdraw them.

The cap of the closed end member 40 shown in FIG.

Common to the coupling halves is an end wall 42 provided at the end of the recess 44. The mouth of this cap has an internal slope. Nipple 16 and its protrusion 26 engage the previously described recess 44 to lock the end cap member onto the tubular end.

Such end caps are generally applied to the insertion end of a tubular body element that is assembled and inserted into the ground. T-tube,
Other applications common with well-known pipes or tubes, such as bent pipes, cross pipes, etc., to form snap-fit couplings taught herein for use with others,
With a suitably shaped tubular body, suitable internal slopes, diameters and cylindrical recesses are formed for use therein.

Although the size of the components, appropriate proportions and materials used in manufacture are obvious,11 the present prototype embodying the invention has the following dimensions and characteristics.

The outer diameter of the tubular body 10.12 is approximately 8.5 cm (approximately 311 cm)
/32) Outer diameter of protrusion 26 approximately 8.3cm (31/4”)
Length of protrusion 26: Approximately 1.3cm (1/2”) Nipple 1
Diameter of 6: Approximately 8.2cm (approximately 37/32) Nipple 16
Length: Approximately 6.2 cm (27/16”) Number of slots 22: 3 Length of slots 22: Approximately 5.7 cm (21/4”) Width of opening of unidirectional U-shaped cut 30: Approximately 1.3 cm (1/2”) Length of coupling 14 Approximately 15.2c+n (6”) Coupling 1
4 outer diameter approximately 8.9cm (31/2″) Coupling 1
Inner diameter of 4: approx. 8.1 cm (33/16") Width of recess 36: approx. 2.54 cm (approx. 1") Depth of recess 36: approx. 0.1
6cm (1/16”) Width of boss 38 in a certain direction Approximately 1.
3cm (1/2") Material Polyvinyl Chloride or ABS The present invention has been described in somewhat specialized interrogation language regarding structural features in accordance with the patent status. However, the means and configurations described herein are suitable for carrying out the invention. It will be appreciated that the present invention, in its preferred form, is not limited to the features shown.Accordingly, the present invention encompasses the full scope of the appended claims, properly construed in accordance with the doctrine of equivalents. Claims are made for the shapes of the present invention and variations thereof within the scope thereof.

[Brief explanation of the drawings] Figure 1 shows a longitudinal disassembly of the assembled coupling and the tubular body arranged to connect the ends, with some parts cut out for convenience of description. 2, 3 and 4 are sectional views taken at 2-2.3-3.4-4 of FIG. 1, respectively, and FIG. 5 is a sectional view of a portion of the end cap according to the invention. figure. FIG. 6 is a longitudinal elevational view of the tubular body and coupling assembly with the portion shown in cross-section. 10.12...Tubular body, I4...Coupling, 1
6... Nipple, 18... Internal groove, 20... Annular shoulder, 22... Slot I~, 24... Divided piece, "2
6...External projection, 28...Shoulder. 30... U-shaped cut, 32... Opening, 36...
・Concave, 38... Boss, 39... Internal annular shoulder, 4
0... Sealed end member, 42... Wall, 44... Recess. Patent applicant also loaf 0 inch ≧ caterer punno, °neet! (Tato Kenna 2

Claims (14)

[Claims] (1) a tubular member having at one end a free nipple portion formed by a sprung segment that can be biased inwardly; a shoulder projection on said sprung segment; and said nipple portion-3) a female member adapted to receive the protrusion and bias the segment inwardly, the socket being adapted to secure the coupling when the nipple is inserted into the socket 1-. A third tubular conduit connection system of a tubular member, characterized in that the tubular member has a shoulder recess that receives and connects the shoulder protrusion. (2) The inwardly biasable segments 1-- support a segmented shoulder collar extending around the end of the nipple portion. Tubular conduit connection system. (3) The collar of the divided shoulder extends in a cylindrical shape around the nipple portion, and the socket has a recess in the cylindrical shoulder that receives and connects the collar of the divided shoulder. A tubular conduit connection system according to claim 2, characterized in that it has: (4) A tubular conduit connection system according to claim 1, characterized in that a fluid sealing means is provided between the nipple portion and the socket. (5) A tubular conduit connection system according to claim 1, characterized in that the nipple portion is divided by slots 1- to form at least three divided pieces. 6. The tubular conduit system of claim 1, wherein the female member socket has a fluid tight bottom forming an end cap. (7) The female member is tubular and has connection sockets so as to respectively receive the nipple portions of the tubular members arranged end-to-end in a line in the axial direction. Tubular conduit connection system as described in Section. (8) The pair of tubular members arranged end-to-end may be similarly configured to have internal vertical grooves and a row of internal vertical grooves to hold the adjacent one tubular end. 8. A tubular conduit connection system as claimed in claim 7, further comprising alignment means disposed within said female member between said members. (9) The alignment means is mounted on a wall within the female member 2
9. A tubular conduit connection system as claimed in claim 8, including a heavy end boss, and wherein the nipple portion of each tubular member has a U-shaped cut for receiving and engaging said projection means. 10. A tubular conduit connection system according to claim 9, characterized in that there is an annular fluid sealing means between each nipple portion and the socket to which it is connected. (11) The tubular conduit connection system according to claim 1, wherein the tubular member has a circular cross section. 12. The nipple portion is divided into pieces by narrow slots extending from an end of the nipple portion and terminating away from an inner end of the nipple portion. Tubular conduit connection system. 13. The tubular conduit connection system of claim 1, further comprising means for circumferentially orienting said coupling and said nipple. (14) Multiple vertically aligned tubular bodies are assembled together in an end-to-end fashion and connected vertically in an apparatus for use in subsurface investigations of geological structures. a tubular body having at one end a reduced-diameter non-disassembly nipple portion divided into a number of biasable spring-loaded segments by directional slots and extending cylindrically around the end of said nipple portion; a split shoulder formed by a protrusion, and a sleeve oriented oppositely to receive the nipple portion of a pair of tubular bodies provided end to end; has a cylindrical recess disposed in the middle part of the inner wall, and has bosses attached to the recess placed at both ends in a fixed direction, and the nipple portion of the tubular body engages with the bosses at both ends. Matching U
internal grooves having letter-shaped cuts, thereby limiting penetration into the sleeve and fixing the tubular body in a fixed orientation; and spaced internal grooves around the circumference of the tubular body; Tubular conduit connection system 1 characterized in that it has all similar relationships for the assembly of -rows so as to move longitudinally and form a continuous continuous track for investigation.
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