CN217501606U - Cable core inner tube and inner tube assembly buckle formula quick detach connect - Google Patents

Abstract

The utility model discloses a snap-on quick-release joint for inner tube and inner tube assembly for wire line coring, which comprises an inner tube joint and an assembly joint; a water passing pore channel is arranged inside the inner pipe joint; the inner pipe joint comprises a left section, a middle section and a right section which are fixedly connected in sequence; the middle section comprises an upper part, a middle part and a lower part which are fixedly connected in sequence, wherein the outer wall of the upper connecting part is an arc-shaped surface, the outer wall of the middle connecting part is a rectangular surface, and the outer wall of the lower connecting part is an arc-shaped surface; a connecting pore channel is arranged in the assembly joint; an open slot is arranged at one side of the assembly joint and comprises a first section and a second section, the first section of the open slot comprises a part A and a part B, the inner wall of the part A is matched with the outer wall of the upper connecting part in shape, and the inner wall of the part B is matched with the outer wall of the middle connecting part in shape; the second section comprises a part A1 and a part B1, the shape of the inner wall of the part A1 is matched with the shape of the outer wall of the right section, and the outer wall of the part B1 is a rectangular surface. The inner pipe joint can be rapidly disassembled in the mode, and the core is conveniently taken out.

Description

Cable core inner tube and inner tube assembly buckle formula quick detach connect

Technical Field

The utility model belongs to the technical field of the probing, specifically be a rope coring inner tube and inner tube assembly buckle formula quick detach connect.

Background

The rope core drilling can be used for core drilling without lifting, and is an advanced core drilling method. Compared with the common drilling, the drilling device has the advantages of good geological effect, high drilling efficiency, low drilling cost and the like. The rope coring drill is widely used due to the advantages of simple structure, reliable performance, low labor intensity and the like.

After core extraction, the most common coring methods are two: one is that the core tube is knocked by a rubber hammer to retreat, and the other is that the core is retreated by pumping pressure. The concrete method that the rubber hammer knocks the core barrel to retreat comprises the steps of detaching a clamp spring seat, knocking the core barrel by the rubber hammer to retreat, and when the core retreats, the core barrel is blocked due to expansion of part of a core section core, so that the core is not easy to take out. If the pumping pressure core-withdrawing method is used, the inner pipe assembly needs to be disassembled, the pumping pressure core-withdrawing can be carried out after the variable head matched with the pressure release valve of the slurry pump is replaced, the operation is complex, the operation is also one of reasons why workers are reluctant to adopt the pumping pressure core-withdrawing, and the workers generally use the method to withdraw the core rarely if knocking is not adopted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rope coring inner tube always holds buckle formula quick detach and connects with inner tube to the use that provides in solving the background art adopts the pump pressure to move back the heart method, then need dismantle the inner tube assembly, change and just can the pump pressure move back the heart after the supporting change head of slush pump relief valve, the complex operation is loaded down with trivial details, the workman is reluctant to adopt the pump pressure to move back the heart, if the non-adoption is strikeed and can't move back the heart, the workman generally uses this mode to move back the heart very seldom.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a rope core inner pipe and inner pipe assembly fastening type quick release joint comprises an inner pipe joint and an assembly joint; the inner pipe joint is clamped with the assembly joint;

a water passing pore channel is arranged inside the inner pipe joint; the inner pipe joint comprises a left section, a middle section and a right section which are fixedly connected in sequence; the diameter of the right section is smaller than that of the left section; the middle section comprises an upper connecting part, a middle connecting part and a lower connecting part which are fixedly connected in sequence, wherein the outer wall of the upper connecting part is an arc-shaped surface, the outer wall of the middle connecting part is a rectangular surface, and the outer wall of the lower connecting part is an arc-shaped surface;

a connecting pore channel is arranged in the assembly joint; an open slot is arranged at one side of the assembly joint and comprises a first section and a second section, the first section of the open slot comprises an A part and a B part, wherein the inner wall of the A part is matched with the outer wall of the upper connecting part in shape, and the inner wall of the B part is matched with the outer wall of the middle connecting part in shape; the second section comprises a part A1 and a part B1, the shape of the inner wall of the part A1 is matched with that of the outer wall of the right section, and the outer wall of the part B1 is a rectangular surface; the assembly joint is clamped with the middle section and the right section of the inner pipe joint through the open slot.

Further, one side of the inner pipe joint is provided with an internal thread.

Furthermore, the water passing hole passage comprises a first hole passage and a second hole passage, and the inner diameter of the first hole passage is smaller than that of the second hole passage; a water sealing steel ball is arranged in the second pore passage.

Furthermore, one side of the second pore canal, which is close to the first pore canal, is provided with an arc-shaped end which is matched with the water sealing steel ball.

Furthermore, a limiting sleeve is arranged outside the assembly joint.

Furthermore, one end of the assembly joint is provided with a limiting part; after the limiting sleeve is connected with the assembly joint, the end face of the limiting sleeve is contacted with the limiting part.

Furthermore, one side of the outer wall of the assembly joint is provided with a limit pin; one side in the stop collar is provided with a stop groove.

Furthermore, the limiting groove comprises a section a, a section b and a section c, the section a is horizontally arranged, the section b is obliquely arranged, the section c is horizontally arranged, and the section a is communicated with the section c through the section b.

Further, one side of the assembly joint is provided with an external thread.

Compared with the prior art, the utility model discloses following beneficial effect has:

an open slot is formed in one side of the assembly joint, the assembly joint is connected with the inner pipe joint in a clamping mode through the open slot, the inner pipe joint is convenient to disassemble, and meanwhile pumping pressure is convenient to perform core withdrawing.

The inner tube connects and divides for left side section, middle section and right side section to the outer wall in middle section has set the three into, and wherein the upper junction portion outer wall is the arcwall face, and well connecting portion outer wall is the rectangular surface, and lower connecting portion outer wall is the arcwall face. The opening groove on the assembly joint is divided into a first section and a second section, the first section is divided into an A part and a B part, the inner wall of the A part is matched with the outer wall of the upper connecting part in shape, and the inner wall of the B part is matched with the outer wall of the middle connecting part in shape; through the design, the inner pipe joint and the assembly joint can be connected more tightly after being clamped. The alignment is also facilitated when the inner pipe joint is connected with the assembly joint, and the connection and disassembly speed of the inner pipe joint and the assembly joint can be effectively improved.

Drawings

FIG. 1 is an isometric view of an inner tube fitting;

FIG. 2 is a front view of the inner pipe joint;

FIG. 3 is a cross-sectional view of the inner pipe joint;

FIG. 4 is an isometric view of the assembly joint;

FIG. 5 is a front view of the assembly joint;

FIG. 6 is a cross-sectional view of the assembly joint;

fig. 7 is a schematic view of the inner pipe joint and the assembly joint according to the present invention after being connected;

FIG. 8 is a cross-sectional view of FIG. 7;

fig. 9 is a second schematic diagram of the inner pipe joint and the assembly joint according to the present invention after being connected;

fig. 10 is a schematic structural view of the quick-release coupling.

The labels in the figure are: 1-inner pipe joint, 101-left section, 102-middle section, 1021-upper connecting section, 1022-middle connecting section, 1023 lower connecting section, 103-right section, 2-water passing hole channel, 201-first hole channel, 202-second hole channel, 3-assembly joint, 4-limit pin, 5-open slot, 501-first section, 5011-A section, 5012-B section, 502-second section, 5021-A1 section, 5022-B1 section, 6-limit section, 7-connecting hole channel, 8-limit sleeve, 9-limit slot, 901-a section, 902-B section, 903-c section, 10-quick core-removing joint, 11-wrench and 12-connecting head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

A snap-in quick-release joint for a rope core inner pipe and an inner pipe assembly comprises an inner pipe joint 1 and an assembly joint 3; the inner pipe joint 1 is clamped with the assembly joint 3.

As shown in fig. 1 to 3, a water passing hole 2 is arranged inside the inner pipe joint 1; when drilling and coring, slurry can pass through the water passing hole channel 2 after an inner pipe is put into the drill rod, and the built-in water sealing steel ball can prevent the slurry from passing through the water passing hole channel 2 in the drilling and coring process, so that the slurry can only flow in a single direction. The inner pipe joint 1 comprises a left section 101, a middle section 102 and a right section 103 which are fixedly connected in sequence; the diameter of the right section 103 is smaller than the diameter of the left section 101; the middle section 102 comprises an upper connecting part 1021, a middle connecting part 1022 and a lower connecting part 1023 which are fixedly connected in sequence, wherein the outer wall of the upper connecting part 1021 is an arc-shaped surface, the outer wall of the middle connecting part 1022 is a rectangular surface, and the outer wall of the lower connecting part 1023 is an arc-shaped surface; the diameter of the virtual cylinder where the arc-shaped surface of the upper connecting part 1021 is smaller than that of the virtual cylinder where the arc-shaped surface of the lower connecting part 1023 is located;

as shown in fig. 4 to 6, the assembly joint 3 is internally provided with a connecting duct 7; an open slot 5 is formed in one side of the assembly connector 3, the open slot 5 comprises a first section 501 and a second section 502, the first section 501 comprises an A part 5011 and a B part 5012, wherein the inner wall of the A part 5011 is matched with the outer wall of the upper connecting part 1021 in shape, and the inner wall of the B part 5012 is matched with the outer wall of the middle connecting part 1022 in shape; the second section 502 comprises an A1 part 5021 and a B1 part 5022, the shape of the inner wall of the A1 part 5021 is matched with that of the outer wall of the right section 103, and the outer wall of the B1 part 5022 is a rectangular surface; the assembly joint 3 is clamped with the middle section 102 and the right section 103 of the inner pipe joint 1 through the opening groove 5.

When the pipe joint is used, as shown in fig. 1 to 8, the second section 502 of the opening groove 5 of the assembly joint 3 is aligned with the right section 103 of the inner pipe joint 1, the first section 501 of the opening groove 5 is aligned with the middle section 102 of the inner pipe joint 1, the assembly joint 3 is pressed, so that the right section 103 of the inner pipe joint 1 enters the second section 502 of the opening groove 5, and the middle section 102 of the inner pipe joint 1 enters the first section 501 of the opening groove 5, thereby realizing clamping. At this time, the outer wall of the upper connecting part 1021 of the middle section 102 of the inner pipe joint 1 contacts the inner wall of the first section 501A 5011 of the assembly joint 3, the outer wall of the middle connecting part 1022 of the middle section 102 of the inner pipe joint 1 contacts the inner wall of the B5012 of the first section 501 of the assembly joint 3, the top of the outer wall of the right section 103 of the inner pipe joint 1 contacts the inner wall of the a1 part 5021 of the second section 502 of the assembly joint 3, and both sides of the outer wall of the inner pipe joint 1 contact the inner wall of the B1 part 5022 of the second section 502 of the assembly joint 3. And the inner pipe joint 1 and the assembly joint 3 are tightly connected after being clamped through the design.

Because the outer wall of the middle connecting part 1022 of the middle section 102 of the inner pipe joint 1 is provided with the rectangular surface, the shape of the inner wall of the part B5012 of the first section 501 of the assembly joint 3 is matched with the shape of the outer wall of the middle connecting part 1022, so that the assembly joint 3 and the inner pipe joint 1 cannot rotate mutually after being clamped, meanwhile, the smoothness of clamping is improved due to the design, and the rectangular surface of the outer wall of the part B1 is also designed to facilitate the clamping. The inner pipe joint 1 and the core barrel can be connected for drilling work after the assembly joint 3 is connected with the inner pipe joint 1. It should be noted that the core barrel is a conventional technique in the drilling field, and the detailed structure thereof is not described again. When the core needs to be taken out, the inner pipe joint 1 and the assembly joint 3 are detached, the inner pipe joint 1 is connected with a mud pump pressure relief pipe, and the core in the core pipe connected with the inner pipe joint 1 is flushed out by using the mud pump. Because the inner pipe joint 1 and the assembly joint 3 are clamped together, the inner pipe joint 1 can be disassembled more quickly, and the disassembling time of the inner pipe joint 1 can be effectively saved.

In a preferred embodiment, one side of the inner pipe fitting 1 is provided with an internal thread, and the inner pipe fitting 1 is connected with the core barrel through the internal thread.

In a preferred embodiment, the diameter of the imaginary cylinder on which the arc-shaped surface of the outer wall of the lower connecting portion 1023 of the middle section 102 of the inner pipe joint 1 is located is the same as the diameter of the right section 103. The tightness of the connection of the inner pipe joint 1 and the assembly joint 3 is ensured, and a large gap is prevented from appearing after the connection of the inner pipe joint 1 and the assembly joint 3.

In a preferred embodiment, the water passing hole 2 comprises a first hole 201 and a second hole 202, wherein the inner diameter of the first hole 201 is smaller than that of the second hole 202; a water sealing steel ball is placed in the second pore passage 202. When the inner pipe is put in, drilling fluid can pass through the water passing pore passage 2, when drilling is carried out, the steel ball blocks the water passing pore passage 2 under the action of gravity, the one-way circulation of the drilling fluid is realized through the water passing pore passage 2, and a one-way valve channel is formed by the design of the first pore passage 201, the second pore passage 202 and the water sealing steel ball.

In a preferred embodiment, the side of the second port 202 close to the first port 201 is provided with an arc-shaped end matched with the water sealing steel ball. The arc-shaped end is arranged, so that the water sealing steel ball is in close contact with the end part of the second pore passage 202, and the sealing performance is ensured.

In a preferred embodiment, a stop collar 8 is arranged outside the assembly joint 3; the stop collar 8 is used for preventing the assembly joint 3 and the inner pipe joint 1 from loosening and falling off.

In a preferred embodiment, one end of the assembly joint 3 is provided with a stopper 6; after the stop collar 8 is connected with the assembly joint 3, the end surface of the stop collar 8 contacts with the limiting part 6. The stopper portion 6 is designed to limit the position of the stopper sleeve 8.

In a preferred embodiment, one side of the outer wall of the assembly joint 3 is provided with a limit pin 4; a limiting groove 9 is arranged at one side in the limiting sleeve 8; after the stop collar 8 is connected with the assembly joint 3, the stop pin 4 is positioned in the stop groove 9. Because the stop pin 4 can slide in the limit groove 9, the design of the stop pin 4 and the limit groove 9 can facilitate the position adjustment of the stop collar 8.

In a preferred embodiment, the limiting groove 9 comprises three sections a, b and c, wherein a section 901 is horizontally arranged, a section b 902 is obliquely arranged, a section c 903 is horizontally arranged, and the sections a 901 and c 903 are communicated through the section b 902. The length of the c-segment 903 should be much smaller than the length of the a-segment 901. The design of the a section 901 enables the stop collar 8 to slide along the a section 901 of the stop groove 9. When the position of the fixed stop collar 8 needs to be limited, the stop collar 8 is rotationally moved so that the stop pin 4 passes through the b-section 902 from the a-section 901 and then enters the c-section 903. At this time, the spacing pin 4 is in the shorter c section 903, and the space in which the spacing sleeve 8 can freely move is greatly reduced, namely, the position of the spacing sleeve 8 is limited.

As shown in fig. 9, when the inner pipe joint 1 and the assembly joint 3 need to be disassembled, the position-limiting sleeve 8 is moved to the right side as shown in fig. 9 until the position of the position-limiting sleeve 8 reaches the position as shown in fig. 9, and at this time, the inner pipe joint 1 and the assembly joint 3 can be separated; it should be noted that, in order to ensure that the inner pipe joint 1 and the assembly joint 3 can be separated, when the stop collar 8 moves to the right dead center, the minimum distance H between the end surface of the right side of the open slot 5 and the stop slot 9 should be greater than the minimum distance H between the end surface of the left side of the stop collar 8 and the stop slot 9, i.e., H is greater than H as shown in fig. 9.

In a preferred embodiment, one side of the assembly joint 3 is provided with external threads to facilitate connection to the inner pipe joint 1 of another set of core pipes.

In a preferred embodiment, a quick-return coupling 10 is provided to facilitate connection of the inner pipe coupling 1 to the pressure relief pipe of a slurry pump. One end of the quick core-withdrawing joint 10 is provided with a connector 12 which is convenient to be connected with a pressure relief pipe, and the other end of the quick core-withdrawing joint is used for being connected with the inner pipe joint 1. The one end that fast moves back heart and connect 10 and inner tube coupling 1 is connected is provided with spanner 11, can block inner tube coupling 1 when spanner 11 is pulled, makes things convenient for inner tube coupling 1 and fast moving back heart to connect of connecting 10. The design simplifies the coring flow and improves the working efficiency.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle connecting portion", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a rope coring inner tube and inner tube assembly buckle formula quick detach connect which characterized in that: comprises an inner pipe joint (1) and an assembly joint (3); the inner pipe joint (1) is clamped with the assembly joint (3);

a water passing pore channel (2) is arranged in the inner pipe joint (1); the inner pipe joint (1) comprises a left section (101), a middle section (102) and a right section (103) which are fixedly connected in sequence; the diameter of the right section (103) is smaller than that of the left section (101); the middle section (102) comprises an upper connecting part (1021), a middle connecting part (1022) and a lower connecting part (1023) which are fixedly connected in sequence, wherein the outer wall of the upper connecting part (1021) is an arc-shaped surface, the outer wall of the middle connecting part (1022) is a rectangular surface, and the outer wall of the lower connecting part (1023) is an arc-shaped surface;

a connecting pore channel (7) is arranged in the assembly joint (3); an open slot (5) is formed in one side of the assembly connector (3), the open slot (5) comprises a first section (501) and a second section (502), the first section (501) comprises an A part (5011) and a B part (5012), the inner wall of the A part (5011) is matched with the outer wall of the upper connecting part (1021) in shape, and the inner wall of the B part (5012) is matched with the outer wall of the middle connecting part (1022) in shape; the second section (502) comprises an A1 part (5021) and a B1 part (5022), the shape of the inner wall of the A1 part (5021) is matched with the shape of the outer wall of the right section (103), and the outer wall of the B1 part (5022) is a rectangular surface; the assembly joint (3) is clamped with the middle section (102) and the right section (103) of the inner pipe joint (1) through the open slot (5).

2. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 1, wherein: one side of the inner pipe joint (1) is provided with an internal thread.

3. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 1, wherein: the water passing hole channel (2) comprises a first hole channel (201) and a second hole channel (202), and the inner diameter of the first hole channel (201) is smaller than that of the second hole channel (202); a water sealing steel ball is arranged in the second pore passage (202).

4. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 3, wherein: one side of the second pore passage (202) close to the first pore passage (201) is provided with an arc-shaped end matched with the water sealing steel ball.

5. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 1, wherein: a limiting sleeve (8) is arranged outside the assembly joint (3).

6. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 5, wherein: one end of the assembly joint (3) is provided with a limiting part (6); after the limiting sleeve (8) is connected with the assembly joint (3), the end face of the limiting sleeve (8) is contacted with the limiting part (6).

7. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 5, wherein: one side of the outer wall of the assembly joint (3) is provided with a limit pin (4); a limiting groove (9) is arranged on one side in the limiting sleeve (8).

8. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 7, wherein: the limiting groove (9) comprises three sections, namely a section (901) a, a section (902) b, a section (903) c and a section (901) a, which are communicated with the section (903) c through the section (902 b).

9. The rope coring inner tube and inner tube assembly snap-in quick disconnect of claim 1, wherein: one side of the assembly joint (3) is provided with an external thread.

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