CN218862577U

CN218862577U - High leakproofness casing head

Info

Publication number: CN218862577U
Application number: CN202223440978.9U
Authority: CN
Inventors: 王微; 成武
Original assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Current assignee: Yancheng Shenhua Machinery Manufacturing Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-14
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to a casing head field specifically discloses a high leakproofness casing head, high leakproofness casing head includes main part and renewal subassembly, the upper end of main part is provided with connector one, and the upper end of connector one runs through there is the manometer, the renewal subassembly sets up in the inside of connector one, and changes the subassembly and include built-in groove, spiral shell stick, bracelet, abutting block and ball, the inside of built-in groove is provided with the spiral shell stick, the lower extreme of spiral shell stick is provided with abutting block, and beneficial effect is: through twisting the swivel, just can quick replacement manometer, shortened the time of changing the manometer, avoid the manometer to damage and delay the equipment use, frictional force when connecting tubular column and main part threaded connection through the sealing strip increase that the built-in groove set up makes the connection tubular column be difficult for sliding in the main part to avoid connecting the joint tip of tubular column and ring type sealing washer two to produce the gap, lead to leaking, set up ring type sealing washer one simultaneously, the sealed effect of reinforcing.

Description

High leakproofness casing head

Technical Field

The utility model relates to a casing head field specifically is a high leakproofness casing head.

Background

The casing head is used for fixing a well mouth of a drilling well, connecting a well mouth casing string, supporting the gravity of a technical casing and an oil layer casing, sealing an annular space between layers of pipes, providing transitional connection for installing a blowout preventer and a tubing head and a Christmas tree, and performing construction operations such as mud compensation, mud extrusion, monitoring, balance liquid filling and the like through two side ports on the casing head body.

For example, patent document CN214576876U discloses a casing head, which comprises a sleeve and a flange cover concentrically fixed at the top opening of the sleeve; the two short connecting pipes are inserted into the sleeve in a diagonal manner and are communicated with the interior of the sleeve; a movable hole is formed on the inner wall of the opening at the top of the sleeve, a guide ring, a sealing gasket and two arc-shaped pressing rings which are arranged diagonally are also embedded in the movable hole, the guide ring is arranged below the two arc-shaped pressing rings, and the sealing gasket is arranged below the guide ring; the utility model discloses a can hold the well head casing string tightly with the help of a plurality of tight pieces of clamp are automatic in the while of mounting flange lid, and then simplified the installation procedure in order to play labour saving and time saving's effect to realized all-round effectual sealed with the help of a plurality of arc sand grips on every tight piece of clamp to the outer wall of well head casing string, and then promoted sealed relatively poor in order to avoid appearing leaking between well head casing string and the casing head of effect by a wide margin.

Among the above-mentioned equipment, operating personnel need look for suitable instrument to twist and change the screw and just can dismantle the manometer and change, and general screw size shape diverse can waste a large amount of time when looking for suitable instrument, reduces the change speed to lead to delaying equipment and use, to above-mentioned condition, carry out technical innovation on current casing head basis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness casing head to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high leakproofness casing head, high leakproofness casing head includes main part and change subassembly, the upper end of main part is provided with connector one, and the upper end of connector one runs through there is the manometer, the change subassembly sets up in the inside of connector one, and changes the subassembly and include built-in groove, spiral shell stick, bracelet, suppression piece and ball, the inside of built-in groove is provided with the spiral shell stick, and the upper end of spiral shell stick is provided with the bracelet, the lower extreme of spiral shell stick is provided with the suppression piece, and one side of the one end of suppression piece all is provided with the ball.

Preferably, the left end of the main body is provided with a disc, and the left end of the disc is provided with a sealing assembly.

Preferably, the sealing assembly comprises a first annular sealing ring and a circular groove, and the circular groove is formed in the right end of the first annular sealing ring.

Preferably, the sealing assembly further comprises a square groove and a sealing strip, the square groove is arranged on the outer side of the circular groove, and the sealing strip is arranged inside the square groove.

Preferably, the sealing assembly further comprises a threaded ring and a second annular sealing ring, the threaded ring is arranged on the inner wall of the circular groove, and the second annular sealing ring is arranged on the right side inside the circular groove.

Preferably, the lower end of the main body is provided with a second connecting head, and an exhaust valve penetrates through the lower end of the second connecting head.

Preferably, the outside of discharge valve is provided with coupling assembling, and coupling assembling includes screw one and screw two, the outside of screw one is provided with screw two.

Preferably, coupling assembling still includes sealing ring and coupling hose, the lower extreme of screw one is provided with the sealing ring, and the outside of sealing ring is provided with coupling hose.

Compared with the prior art, the beneficial effects of the utility model are that: through twisting the swivel, just can quick replacement manometer, shortened the time of changing the manometer, avoid the manometer to damage and delay the equipment use, frictional force when connecting tubular column and main part threaded connection through the sealing strip increase that the built-in groove set up makes the connection tubular column be difficult for sliding in the main part to avoid connecting the joint tip of tubular column and ring type sealing washer two to produce the gap, lead to leaking, set up ring type sealing washer one simultaneously, the sealed effect of reinforcing.

1. The utility model discloses in the use, operating personnel twists the bracelet, the rotatory drive spiral shell stick of bracelet is rotatory, make spiral shell stick rebound, spiral shell stick rebound takes and supports briquetting rebound, support the briquetting and go up the back, the inclined plane on the briquetting is no longer to supporting the pressure to the ball, thereby make the ball no longer to prescribing a limit to the inclined plane on the pressure gauge joint, operating personnel holds the manometer and outwards extracts the manometer, then insert a connecting head with new pressure gauge joint inside, twist again and turn the bracelet, make and support the briquetting and support the pressure ball, the ball is injectd the inclined plane on the pressure gauge joint again, just fixed the manometer, thereby can the quick replacement manometer, the time of changing the manometer has been shortened, avoid the manometer to damage and delay the use of equipment.

2. The utility model discloses in the use, disc and ring type sealing washer one are passed to the tip that operating personnel will connect the tubular column, then swivelling joint tubular column, make the fillet of screw on the circular slot tighten with the rotation on the connecting string, make the joint tip of connecting the tubular column support and press ring type sealing washer two, thereby make connecting tubular column and main part be connected sealedly, frictional force when connecting tubular column and main part threaded connection through the sealing strip increase that includes the built-in groove setting, make the connecting string be difficult for sliding in the main part, thereby avoid connecting the joint tip of tubular column and ring type sealing washer two to produce the gap, lead to leaking, set up ring type sealing washer one simultaneously, strengthen sealed effect.

Drawings

Fig. 1 is a schematic front sectional view of a high-sealability casing head according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a high-sealability casing head of the present invention at a point a in fig. 1;

fig. 3 is an enlarged schematic structural diagram of a casing head with high sealing performance shown in fig. 1B;

fig. 4 is a schematic view of a three-dimensional structure of a disc and a main body of a high-sealing casing head according to the present invention.

In the figure: 1. a main body; 2. a first connecting head; 3. a pressure gauge; 4. replacing the component; 401. a built-in groove; 402. a screw rod; 403. a bracelet; 404. a pressing block; 405. a ball; 5. a disc; 6. a seal assembly; 601. a ring-shaped seal ring I; 602. a circular groove; 603. a square groove; 604. a sealing strip; 605. a thread ring; 606. a second annular sealing ring; 7. a second connector; 8. an exhaust valve; 9. a connecting assembly; 901. a first screw; 902. a second screw; 903. a seal ring; 904. a hose is connected.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 2, the present invention provides a technical solution: the utility model provides a high leakproofness casing head, high leakproofness casing head includes main part 1 and change subassembly 4, the upper end of main part 1 is provided with connector 2, and the upper end of connector 2 runs through there is manometer 3, it sets up the inside at connector 2 to change subassembly 4, and it includes built-in groove 401 to change subassembly 4, spiral shell stick 402, bracelet 403, press block 404 and ball 405, the inside of built-in groove 401 is provided with spiral shell stick 402, and the upper end of spiral shell stick 402 is provided with bracelet 403, the lower extreme of spiral shell stick 402 is provided with press block 404, and one end one side of press block 404 all is provided with ball 405, through twisting handle 403, manometer 3 can be replaced by quick replacement, the time of changing manometer 3 has been shortened, avoid manometer 3 to damage delay the equipment use, through the sealing strip 604 increase the frictional force when connecting string and main part 1 threaded connection in built-in groove 401, make the connecting string be difficult for sliding in main part 1, thereby avoid the connecting string to connect the end portion and ring type sealing washer two 606 and produce the gap, lead to the leakage, set up ring type sealing washer 601 simultaneously, strengthen the sealed effect.

Referring to fig. 1, 3 and 4, a disc 5 is disposed at the left end of a main body 1, a sealing assembly 6 is disposed at the left end of the disc 5, the sealing assembly 6 includes a first annular sealing ring 601 and a circular groove 602, the right end of the first annular sealing ring 601 is provided with the circular groove 602, the sealing assembly 6 further includes a square groove 603 and a sealing strip 604, the outer side of the circular groove 602 is provided with the square groove 603, the inner side of the square groove 603 is provided with the sealing strip 604, the sealing assembly 6 further includes a thread ring 605 and a second annular sealing ring 606, the inner wall of the circular groove 602 is provided with the thread ring 605, the right side of the inner side of the circular groove 602 is provided with the second annular sealing ring 606, an operator penetrates the end of a connecting string through the disc 5 and the first annular sealing ring 601, then rotates the connecting string, the thread ring 605 on the circular groove 602 is screwed to the connecting string, the end of the connecting string is pressed against the second annular sealing ring 606, so that the connecting string is connected to the main body 1, the sealing strip 604 arranged in the built-in groove 401 increases the friction force when the connecting pipe column is in threaded connection with the main body 1, so that the connecting pipe column is not easy to slide in the main body 1, thereby avoiding the generation of a gap between the end part of the joint of the connecting pipe column and the annular sealing ring II 606 to cause leakage, meanwhile, the annular sealing ring I601 is arranged to enhance the sealing effect, the lower end of the main body 1 is provided with the joint II 7, the lower end of the joint II 7 is penetrated with the exhaust valve 8, the outer side of the exhaust valve 8 is provided with the connecting assembly 9, the connecting assembly 9 comprises a screw I901 and a screw II 902, the outer side of the screw I901 is provided with the screw II 902, the connecting assembly 9 further comprises a sealing ring 903 and a connecting hose 904, the lower end of the screw I901 is provided with the sealing ring 903, the outer side of the sealing ring 903 is provided with the connecting hose, the screw II 902 on the connecting hose 904 is rotated into the screw I901 on the exhaust valve 8, the connecting hose 904 is installed by pressing the screw 901 against the sealing ring 903, so that when the connecting hose 904 is installed, the pressure is prevented from being relieved, and people are injured due to direct ejection of gas.

The working principle is as follows: when the device is in actual use, an operator penetrates the end part of the connecting pipe column through the disc 5 and the ring-shaped sealing ring I601, then rotates the main body 1 to enable the thread ring 605 on the circular groove 602 to be screwed with the rotation on the connecting pipe column, so that the joint end part of the connecting pipe column is pressed against the ring-shaped sealing ring II 606 to enable the connecting pipe column to be connected and sealed with the main body 1, the sealing strip 604 arranged in the built-in groove 401 is used for increasing the friction force when the connecting pipe column is in threaded connection with the main body 1, the connecting pipe column is not easy to slide in the main body 1, the joint end part of the connecting pipe column is prevented from generating a gap with the ring-shaped sealing ring II 606 to cause leakage, meanwhile, the ring-shaped sealing ring I601 is arranged to enhance the sealing effect, the device is used for a long time, when the pressure gauge 3 is damaged and needs to be replaced, an operator twists the rotating ring 403, the hand ring 403 rotates to drive the screw rod 402 to rotate, the screw rod 402 moves upwards, the pressing block 404 moves upwards with the upward movement of the screw rod 402, after the pressing block 404 moves upwards, the inclined plane on the pressing block 404 does not press the ball 405 any more, so that the ball 405 is not limited to the inclined plane on the pressure gauge 3 connector any more, the operator holds the pressure gauge 3 to pull out the pressure gauge 3 outwards, then inserts a new pressure gauge 3 connector into the first connecting head 2, then twists the rotating ring 403, fixes the pressure gauge 3, rotates the second screw 902 on the connecting hose 904 into the first screw 901 on the exhaust valve 8, presses the first screw 901 against the sealing ring 903, and then installs the connecting hose 904.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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

1. A high leakproofness casing head which characterized in that: high leakproofness casing head includes main part (1) and change subassembly (4), the upper end of main part (1) is provided with connector (2), and the upper end of connector (2) runs through manometer (3), change subassembly (4) and set up in the inside of connector (2), and change subassembly (4) including built-in groove (401), spiral shell stick (402), bracelet (403), suppression piece (404) and ball (405), the inside of built-in groove (401) is provided with spiral shell stick (402), and the upper end of spiral shell stick (402) is provided with bracelet (403), the lower extreme of spiral shell stick (402) is provided with suppression piece (404), and one end one side of suppression piece (404) all is provided with ball (405).

2. A high-sealability casing head according to claim 1, wherein: the left end of the main body (1) is provided with a disc (5), and the left end of the disc (5) is provided with a sealing assembly (6).

3. A high-sealability casing head according to claim 2, wherein: the sealing assembly (6) comprises a first annular sealing ring (601) and a circular groove (602), and the circular groove (602) is formed in the right end of the first annular sealing ring (601).

4. A high-sealability casing head according to claim 3 wherein: the sealing assembly (6) further comprises a square groove (603) and a sealing strip (604), the square groove (603) is arranged on the outer side of the circular groove (602), and the sealing strip (604) is arranged inside the square groove (603).

5. A high-sealability casing head according to claim 3, wherein: the sealing assembly (6) further comprises a thread ring (605) and a second annular sealing ring (606), the thread ring (605) is arranged on the inner wall of the circular groove (602), and the second annular sealing ring (606) is arranged on the right side of the inner portion of the circular groove (602).

6. A high-sealability casing head according to claim 1, wherein: the lower extreme of main part (1) is provided with connector two (7), and the lower extreme of connector two (7) runs through has discharge valve (8).

7. The casing head of claim 6, wherein: the outside of discharge valve (8) is provided with coupling assembling (9), and coupling assembling (9) are including screw one (901) and screw two (902), the outside of screw one (901) is provided with screw two (902).

8. The high-sealability casing head according to claim 7, wherein: the connecting assembly (9) further comprises a sealing ring (903) and a connecting hose (904), the sealing ring (903) is arranged at the lower end of the first screw (901), and the connecting hose (904) is arranged on the outer side of the sealing ring (903).