CN209704499U - A kind of anti-clamping stagnation drilling rod floating valve - Google Patents

Abstract

The utility model provides a kind of anti-clamping stagnation drilling rod floating valve, it is related to machinery field, the anti-clamping stagnation drilling rod floating valve, including valve seat, the valve base inner wall bottom is provided with axle sleeve, axis plug is plugged at the top of the axle sleeve, the axis plug includes core bar and the triangle pole at the top of core bar, the edges and corners of the triangle pole are provided with knuckle, the bottom of the triangle pole is bonded with gasket, the outer wall of the core bar is arranged with spring, top magnetic sheet is welded at the top of the ring of the spring, the ring bottom of the spring is welded with bottom magnetic sheet, the anti-clamping stagnation drilling rod floating valve, it is functionally said from the specification float valve, when encountering relatively large solid formation in drilling process, it is easy float valve to be opened than common circular axis plug, it is unlikely to stuck by axle sleeve because there are sundries, triangle pole at the top of core bar is designed at Rouno Cormer Pregrinding Wheel, facilitate installation, axis is realized again Movable flexibility is filled in, friction relevant to drilling fluid is reduced, also increases the safety in dismounting float valve.

Description

A kind of anti-clamping stagnation drilling rod floating valve

Technical field

The utility model relates to field of mechanical technique, specially a kind of anti-clamping stagnation drilling rod floating valve.

Background technique

Currently, oil drilling generally uses arrow type and two kinds of turnover plate type structure with drilling rod floating valve, wherein F type arrow type float valve exists Oil drilling industry is widely used, and functionally, arrow type float valve provides just, instantaneously closing to high and low pressure, is guaranteed Continuous control in drilling process to fluid, the round rod type structure that the axis stopper rod of the float valve generallys use, due to having in underground Uncertain and indefinite size solid matter can be extruded in the gap of axle sleeve and axis plug, and it is stagnant to cause axis fork clip, be eventually led to Float valve functionally fails.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of anti-clamping stagnation drilling rod floating valve, in specific drilling well ring The up and down flexibility of spool is increased significantly under border, and it is stagnant to solve axis fork clip, eventually leads to what float valve functionally failed Problem.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of anti-clamping stagnation drilling rod floating valve, Including valve seat, the inner wall bottom of the valve seat is provided with axle sleeve, axis plug is plugged at the top of the axle sleeve, the axis plug includes core Bar and the triangle pole at the top of core bar, the edges and corners of the triangle pole are provided with knuckle, and the bottom of the triangle pole is viscous It is connected to gasket, gasket seal is provided with below the gasket, the outer wall of the core bar is arranged with spring, the spring Top magnetic sheet is welded at the top of ring, the ring bottom of the spring is welded with bottom magnetic sheet, the adjacent top magnetic of the spring Piece and bottom magnetic sheet side magnetic direction close to each other are identical, are provided with external seal at the top of the outer wall of the valve seat.

Preferably, the top and bottom of the spring is welded with end ring, and the end ring is annular shape and is sheathed on core The outside of bar.

Preferably, the top magnetic sheet and bottom magnetic sheet offer caulking groove, and the shape of caulking groove close to the side of spring It is adapted with spring.

Preferably, the outer wall of the valve seat offers card slot, and the shape of card slot is adapted with external seal.

Preferably, the outer wall of the valve seat is connected with retaining ring, and retaining ring is distributed in the top and bottom of external seal.

(3) beneficial effect

The utility model provides a kind of anti-clamping stagnation drilling rod floating valve.Have it is following the utility model has the advantages that

1, the anti-clamping stagnation drilling rod floating valve, functionally says from the specification float valve, relatively large solid phase is encountered in drilling process , can be easier than common circular axis plug unlatching float valve when object, it is unlikely to stuck by axle sleeve because there are sundries, the triangle pole at the top of core bar It is designed at Rouno Cormer Pregrinding Wheel, has not only facilitated installation, but also realize the movable flexibility of axis plug, reduce friction relevant to drilling fluid, Also increase the safety in dismounting float valve.

2, the anti-clamping stagnation drilling rod floating valve is respectively provided with top magnetic sheet and bottom in multiple ring top and bottoms of spring Magnetic sheet, top magnetic sheet and bottom magnetic sheet generate repulsive force between each other, and spring is promoted to be in elongate, help to extend spring Service life avoids under high temperature, high pressure, the operating condition of high flow rate, and fatigue or failure easily occurs in spring, causes in drilling well When liquid direct circulation stops or overflow, well kick occurs, the case where drilling tool internal channel cannot be closed in time or can not be closed.

Detailed description of the invention

Fig. 1 is the overall schematic of the utility model；

Fig. 2 is the structural schematic diagram of the utility model axis plug；

Fig. 3 is the enlarged drawing of the utility model region A；

Fig. 4 is the schematic diagram of magnetic sheet at the top of the utility model.

In figure: 1 gasket seal, 2 axis plugs, 21 core bars, 22 triangle poles, 23 knuckles, 3 external seals, 4 gaskets, 5 axis Set, 6 springs, 7 valve seats, 8 top magnetic sheets, 9 bottom magnetic sheets, 10 end ring, 11 caulking grooves, 12 card slots, 13 retaining rings.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model embodiment provides a kind of anti-clamping stagnation drilling rod floating valve, as shown in Figs 1-4, including valve seat 7, valve seat 7 Inner wall bottom is provided with axle sleeve 5, and the top of axle sleeve 5 is plugged with axis plug 2, and axis plug 2 is made of 8620 materials, it is ensured that performance, axis plug 2 Triangle pole 22 including core bar 21 and positioned at 21 top of core bar, the edges and corners of triangle pole 22 are provided with knuckle 23, triangle pole 22 bottom is bonded with gasket 4, and the lower section of gasket 4 is provided with gasket seal 1, and the outer wall of core bar 21 is arranged with spring 6, bullet The top and bottom of spring 6 is welded with end ring 10, and end ring 10 is annular shape and the outside for being sheathed on core bar 21, and end ring 10 increases The contact area of spring 6 end and axle sleeve 5 improves the stability of its fixation, and top magnetic sheet is welded at the top of the ring of spring 6 8, the ring bottom of spring 6 is welded with bottom magnetic sheet 9, the adjacent top magnetic sheet 8 of spring 6 and bottom magnetic sheet 9 it is close to each other one Side magnetic direction is identical, and top magnetic sheet 8 and bottom magnetic sheet 9 offer caulking groove 11, and the shape of caulking groove 11 close to the side of spring 6 Shape is adapted with spring 6, increases top magnetic sheet 8 and bottom magnetic sheet 9 is fixed on the stability on spring 6, the outer wall top of valve seat 7 It is provided with external seal 3, the outer wall of valve seat 7 offers card slot 12, and the shape of card slot 12 is adapted with external seal 3, increases outer The contact area of sealing 3 and valve seat 7, fixed is more stable, while improving sealing effect, and the outer wall of valve seat 7 is connected with retaining ring 13, and retaining ring 13 is distributed in the top and bottom of external seal 3, raised retaining ring 13 can reduce underground environment slurries pair to a certain degree External seal 3 washes away, and improves its service life.

Working principle: stretching in use, axis plug 2 is located in axle sleeve 5 under the action of spring 6, and triangle pole 22 is driven to rise Closed valve seat 7 can close drilled tunnel, avoid when drilling fluid direct circulation stops or overflow, well kick occurs, drilling fluid is logical Channel spilling is crossed, gasket seal 1 increases closed leakproofness, is provided with card compatible with external seal 3 in the outer wall of valve seat 7 Slot 12 improves its leakproofness, and raised retaining ring 13 can reduce underground environment slurries washing away to external seal 3 to a certain degree, improves Its service life.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of anti-clamping stagnation drilling rod floating valve, which is characterized in that including valve seat (7), the inner wall bottom of the valve seat (7) is provided with axis It covers (5), is plugged with axis plug (2) at the top of the axle sleeve (5), the axis plug (2) includes core bar (21) and pushes up positioned at core bar (21) The edges and corners of the triangle pole (22) in portion, the triangle pole (22) are provided with knuckle (23), the bottom of the triangle pole (22) It is bonded with gasket (4), is provided with gasket seal (1) below the gasket (4), the outer wall of the core bar (21) is arranged with The ring top of spring (6), the spring (6) is welded with top magnetic sheet (8), and the ring bottom of the spring (6) is welded with bottom Portion's magnetic sheet (9), the adjacent top magnetic sheet (8) of the spring (6) and bottom magnetic sheet (9) side magnetic direction phase close to each other Together, external seal (3) are provided at the top of the outer wall of the valve seat (7).

2. a kind of anti-clamping stagnation drilling rod floating valve according to claim 1, it is characterised in that: the top and bottom of the spring (6) Portion is welded with end ring (10), and the end ring (10) is annular shape and the outside for being sheathed on core bar (21).

3. a kind of anti-clamping stagnation drilling rod floating valve according to claim 1, it is characterised in that: the top magnetic sheet (8) and bottom Magnetic sheet (9) offers caulking groove (11) close to the side of spring (6), and the shape of caulking groove (11) is adapted with spring (6).

4. a kind of anti-clamping stagnation drilling rod floating valve according to claim 1, it is characterised in that: the outer wall of the valve seat (7) opens up Have card slot (12), and the shape of card slot (12) is adapted with external seal (3).

5. a kind of anti-clamping stagnation drilling rod floating valve according to claim 1, it is characterised in that: the outer wall of the valve seat (7) is clamped Have retaining ring (13), and retaining ring (13) is distributed in the top and bottom of external seal (3).