Drilling blowout preventer for drilling machine

Abstract

A drilling blowout preventer for a drilling machine comprises a box seat (1) arranged on a drilling rod, a sealing cylinder seat (8) arranged between the drilling rod and the box seat (1) and a rotary support (5) arranged between the sealing cylinder seat (8) and the box seat (1), mud water sprayed out of a drilling hole is discharged in different directions through the box seat (1), and the mud water is sprayed out of the drilling hole through the sealing cylinder seat (8). According to the drilling blowout prevention device, the rotary support (5) is arranged on the sealing cylinder seat (8), mud water is prevented from being sprayed to drilling, the rotary support (5) is arranged, the sealing cylinder seat (8) rotates along with a drilling rod, the mud water extending to a drilling machine is blocked, the technical problem that the drilling rod is sleeved with one box seat is solved, and therefore the drilling blowout prevention effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling hole blowout preventer, especially a drilling hole blowout preventer for drilling machine. BACKGROUND

[0002] When the drilling rod touches the water-rich layer, the mud water may be sprayed out of the drilling hole, so the drilling hole blowout preventer for drilling machine is an important part of the drilling machine.

[0003] The utility model discloses a mud water extending to the drilling machine is blocked. SUMMARY

[0004] The utility model discloses a drilling hole blowout preventer for drilling machine.

[0005] In order to overcome above technical defects, the utility model discloses a drilling hole blowout preventer for drilling machine, thus improve the effect of drilling hole blowout prevention.

[0006] In order to achieve above purpose, the utility model adopts the technical scheme, which contains the box seat arranged on the drilling rod, the sealing cylinder seat arranged between the drilling rod and the box seat and the rotary support arranged between the sealing cylinder seat and the box seat.

[0007] The utility model discloses a mud water extending to the drilling machine is blocked.

[0008] The utility model discloses a mud water extending to the drilling machine is blocked.

[0009] The utility model discloses a mud water extending to the drilling machine is blocked.

[0010] The technical effects of the above three technical solutions are that the technical feature of blocking the mud water extending to the drilling machine is highlighted, and the application in the technical field of the blowout prevention device for the drilling machine is introduced.

[0011] The utility model discloses a still contain first accessory device and first accessory device set up between the rotary support and the box seat, first accessory device setting is the mounting seat.

[0012] The utility model discloses a still contain second accessory device and second accessory device set up between the rotary support and the sealing cylinder seat, second accessory device setting contains the connecting disc and bolt nut.

[0013] The utility model discloses a still contain third accessory device and third accessory device set up on the box seat, third accessory device setting contains the flange plate and the hole sealing device.

[0014] The utility model discloses a still contain third accessory device and third accessory device set up on the box seat, third accessory device setting is the plate seat.

[0015] The technical effects of the above four technical solutions are that the integration and installation of other components are realized, and the technical effects of the utility model are expanded.

[0016] The utility model discloses a still contain third accessory device and third accessory device set up on the box seat, third accessory device setting is the plate seat.

[0017] The technical effects of the above technical solutions are that the box seat, the flange plate, the hole sealing device, the mounting seat, the rotary support, the connecting disc, the bolt nut, the sealing cylinder seat and the plate seat are used to form the basic technical solution of the utility model, and the technical problems of the utility model are solved.

[0018] The utility model discloses a still contain third accessory device and third accessory device set up on the box seat, third accessory device setting is the plate seat.

[0019] The utility model discloses a still contain third accessory device and third accessory device set up on the box seat, third accessory device setting is the plate seat.

[0020] The technical effects of the above two technical solutions are that the mud water body sprayed is discharged laterally, and the drilling rig is ensured to be in a safe zone.

[0021] The utility model discloses a rotary support is provided with a bearing, and the outer ring periphery side of the rotary support is connected with the mounting seat, the inner ring outer end face of the rotary support is connected with the connecting disc, and the inner ring inner end face of the rotary support and the periphery side of the rotary support are connected with the sealing cylinder seat.

[0022] The technical effects of the above technical solution are that the sealing cylinder seat is driven to rotate, and the frictional force between the sealing cylinder seat and the drill pipe is prevented.

[0023] The utility model discloses a sealing cylinder seat is provided with a cylinder portion IV, a ring portion I and a ring portion II, one end face of the ring portion I is connected with the periphery side of the cylinder portion IV, the other end face of the ring portion I is connected with the outer end face of the ring portion II, the inner end port of the cylinder portion IV is connected with the box seat, the outer end head of the cylinder portion IV is connected with the mounting seat, the ring portion II is connected with the bolt nut, the inner end face of the ring portion II is connected with the flange body of the bolt nut, the outer end face of the ring portion II is connected with the connecting disc, and the periphery side of the ring portion II is connected with the rotary support.

[0024] The utility model discloses a cylinder portion IV is provided with a rubber pipe body, the ring portion I is provided with a ring body with S-shaped section, the ring portion II is provided with a ring body with L-shaped groove body and through -hole body, the L-shaped groove body of the ring portion II is connected with the rotary support, and the through -hole body of the ring portion II is connected with the bolt of the bolt nut.

[0025] The technical effects of the above two technical solutions are that the pipe body is sealed, the ring body with S-shaped section is elastically supported, and the rotation performance of the sealing cylinder seat is improved.

[0026] The utility model discloses a mounting seat is provided with a seat portion, a plate portion and a screw rod portion, the outer end port of the seat portion is connected with the inner end face edge of the plate portion, the inner end head of the screw rod portion is connected with the edge of the plate portion, the inner end head of the screw rod portion is connected with the outer end port of the seat portion, the flange body of the screw rod portion is connected with the inner end face edge of the plate portion, the inner end port of the seat portion is connected with the box seat, the periphery inner wall of the seat portion is connected with the rotary support, and the plate portion is connected with the sealing cylinder seat.

[0027] The utility model discloses, seat part setting is the tubular body with threaded hole body of outer end port and the board part setting is the sheet body with edge through -hole body and intermediate through -hole body, screw rod part setting is the interior hexagonal bolt and the threaded hole body of seat part and the edge through -hole body of board part are set respectively with screw rod part coupling, the intermediate through -hole body of board part sets up with the sealing cylinder base coupling.

[0028] The technical effects of the above two technical solutions are that the inner closed cavity is installed and supported.

[0029] The utility model discloses, connecting disc setting is the L character shape ring body with through -hole body of vertical part and the through -hole body of connecting disc setting is with bolt nut's bolt coupling, the vertical part outer end face of connecting disc setting is with bolt nut's nut contact type coupling and the vertical part inner end face of connecting disc setting is with sealing cylinder base contact type coupling, the horizontal part inner end face of connecting disc setting is with slewing support contact type coupling.

[0030] The utility model discloses, bolt nut's bolt setting is the interior hexagonal bolt and bolt nut's nut setting is the hexagonal nut, the inner end head of bolt nut's bolt sets up respectively with connecting disc and sealing cylinder base through -penetrating type coupling and the inner end face of bolt nut's nut sets up with connecting disc contact type coupling, bolt nut's bolt flange body sets up with sealing cylinder base contact type coupling.

[0031] The technical effects of the above two technical solutions are that the installation clamping opening connected with the slewing support is formed with the sealing cylinder base, and the connection between the sealing cylinder base and the slewing support is facilitated.

[0032] The utility model discloses, flange disc setting is the flange joint, and one disc part outer end face of flange disc setting is with box seat coupling and the outer end face of another disc part of flange disc setting is with hole sealing ware coupling.

[0033] The technical effects of the above technical solution are that the hole sealing ware and the box seat can be detachably installed.

[0034] The utility model discloses, hole sealing ware setting is the mine inflatable capsule hole sealing ware and the inner end face of hole sealing ware setting is with flange disc coupling.

[0035] The technical effects of the above technical solution are that the port of the jet drilling is sealed by the expansion body.

[0036] The utility model discloses, board seat setting is the L character sheet body and the vertical part end face of board seat setting is with box seat coupling, and the horizontal part of board seat setting is with drilling rig rack coupling.

[0037] The technical effects of the above technical solution are that the box seat is installed and supported by the seat body.

[0038] The utility model discloses, box seat and mounting seat, rotary support, connecting disc, bolt nut and sealing cylinder seat are set as the mode distribution according to the follow -up sealing body and box seat and flange and hole sealer are set as the mode distribution according to the port sealing body, and box seat and plate seat are set as the mode distribution according to the intermediate connecting body.

[0039] The utility model discloses, the center line of box seat, the center line of flange, the center line of hole sealer, the center line of mounting seat, the center line of rotary support, the center line of connecting disc and the center line of sealing cylinder seat are set on the same straight line, and multiple bolt nuts are set between connecting disc and sealing cylinder seat, two plate seats are set on box seat, and cylinder portion IV and seat portion are set as being coupled with box portion respectively.

[0040] In the technical scheme, box seat, rotary support and sealing cylinder seat are basic components and also necessary technical features of the utility model, flange, hole sealer, mounting seat, connecting disc, bolt nut and plate seat are functional components and are features for realizing other technical effects of the utility model, and the design of box portion, cylinder portion I, cylinder portion II, cylinder portion III, seat portion, plate portion, screw portion, cylinder portion IV, ring portion I and ring portion II is in line with the technical features of the patent law and its implementing details.

[0041] In the technical scheme, the sealing cylinder seat is used for blocking the mud water extending to the drilling machine.

[0042] In the technical scheme, box seat, sealing cylinder seat and rotary support for blocking the mud water extending to the drilling machine are important technical features, and the drilling hole blowout preventer for the drilling machine has novelty, creativity and practicality in the technical field, and the terms in the technical scheme can be explained and understood by referring to the patent documents in the technical field. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to make the technical scheme in the embodiments of the utility model or the prior art clearer, the drawings needed in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0044] Figure 1 It is a schematic view of one of the first embodiments of the utility model,

[0045] Figure 2 It is a left view of Figure 1

[0046] ​Box seat-1, flange-2, hole sealer-3, mounting seat-4, rotary support-5, connecting disc-6, bolt nut-7, sealing cylinder seat-8, plate seat-9, box-11, cylinder part I-12, cylinder part II-13, cylinder part III-14, seat part-41, plate part-42, screw part-43, cylinder part IV-81, ring part I-82, ring part II-83. DETAILED DESCRIPTION

[0047] According to the examination guidelines, the terms such as "have", "contain" and "include" used in the utility model should be understood as not excluding the existence or addition of one or more other elements or combinations thereof.

[0048] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them, and in addition, unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the product manual or according to the conventional method in the art.

[0051] The technical solutions in the embodiments of the utility model will be described clearly and completely in the following description of the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0052] Figure 1 For the first embodiment of the utility model, the embodiment is specifically explained in combination with the drawings, containing box seat 1, flange plate 2, hole sealer 3, mounting seat 4, rotary support 5, connecting disc 6, bolt nut 7, sealing cylinder seat 8 and plate seat 9 and mounting seat 4 and plate seat 9 are respectively arranged on box seat 1, flange plate 2 is arranged between hole sealer 3 and box seat 1 and rotary support 5 is arranged between sealing cylinder seat 8 and mounting seat 4, connecting disc 6 is arranged between rotary support 5 and sealing cylinder seat 8 and bolt nut 7 is arranged between connecting disc 6 and sealing cylinder seat 8.

[0053] For the second embodiment of the first embodiment of the utility model, the embodiment is specifically explained in combination with the drawings,

[0054] In the embodiment, box seat 1 is arranged to contain box part 11, cylinder part I 12, cylinder part II 13 and cylinder part III 14, and the upper end face of box part 11 is arranged to be in communication with the inner end port of cylinder part I 12, the lower end face of box part 11 is arranged to be in communication with the inner end port of cylinder part II 13, and the inner end face of box part 11 is arranged to be in communication with the inner end port of cylinder part III 14, the outer end face edge of box part 11 is arranged to be connected with mounting seat 4, the middle of the outer end face of box part 11 is arranged to be in contact with sealing cylinder seat 8, the lower end face edge of box part 11 is arranged to be connected with plate seat 9, and the outer end port of cylinder part III 14 is arranged to be connected with flange plate 2.

[0055] Through box seat 1, the support connection points of flange plate 2, mounting seat 4, sealing cylinder seat 8 and plate seat 9 are formed, through cylinder part III 14, the connection with flange plate 2 is realized, through box part 11, the connection with mounting seat 4 is realized, the connection with sealing cylinder seat 8 is realized, the connection with plate seat 9 is realized, through cylinder part I 12 and cylinder part II 13, the discharge of the mud water in box part 11 is realized, and the technical purpose lies in: being used as the support carrier of flange plate 2, mounting seat 4 and sealing cylinder seat 8.

[0056] In the embodiment, box part 11 is arranged as a box-shaped body, and cylinder part I 12 and cylinder part II 13 are arranged as tubular bodies with annular groove bodies on the outer ends of the peripheral side faces, and cylinder part III 14 is arranged as a tubular body.

[0057] The technical purpose lies in: realizing the pipe body support of flange plate 2 and the box body support of mounting seat 4 and sealing cylinder seat 8.

[0058] In the embodiment, flange plate 2 is arranged as a flange joint, one of the outer end faces of the disc parts of flange plate 2 is arranged to be connected with box seat 1, and the outer end face of another disc part of flange plate 2 is arranged to be connected with hole sealer 3.

[0059] The flange 2 forms a support connection point for the box seat 1 and the sealing plug 3, and the flange 2 is connected to the box seat 1 and the sealing plug 3, and the technical purpose is to serve as a component for connecting the sealing plug 3 and the box seat 1.

[0060] In this embodiment, the sealing plug 3 is provided as a mine inflatable capsule sealing plug, and the inner end face of the sealing plug 3 is provided to be coupled with the flange 2.

[0061] The sealing plug 3 forms a support connection point for the flange 2, and the sealing plug 3 is connected to the flange 2, and the technical purpose is to serve as a component for plugging the drilling port.

[0062] In this embodiment, the mounting seat 4 is provided as a component comprising a seat portion 41, a plate portion 42 and a screw portion 43, and the outer end port of the seat portion 41 is provided to be in edge contact coupling with the inner end face of the plate portion 42, the inner end head of the screw portion 43 is provided to be in edge penetration coupling with the plate portion 42, and the inner end head of the screw portion 43 is provided to be in threaded coupling with the outer end port of the seat portion 41, the flange body of the screw portion 43 is provided to be in edge contact coupling with the inner end face of the plate portion 42, and the inner end port of the seat portion 41 is provided to be coupled with the box seat 1, the peripheral inner wall of the seat portion 41 is provided to be coupled with the rotary support 5, and the plate portion 42 is provided to be in sleeved coupling with the sealing cylinder seat 8.

[0063] The mounting seat 4 forms a support connection point for the box seat 1, the rotary support 5 and the sealing cylinder seat 8, and the seat portion 41 is connected to the box seat 1 and the rotary support 5, and the plate portion 42 is connected to the sealing cylinder seat 8, and the screw portion 43 is connected to the plate portion 42 and the seat portion 41, and the technical purpose is to serve as a support carrier for the rotary support 5.

[0064] In this embodiment, the seat portion 41 is provided as a tubular body with a threaded hole body at the outer end port, and the plate portion 42 is provided as a sheet body with an edge through hole body and an intermediate through hole body, the screw portion 43 is provided as a hexagonal socket head cap screw, and the threaded hole body of the seat portion 41 and the edge through hole body of the plate portion 42 are respectively provided to be coupled with the screw portion 43, and the intermediate through hole body of the plate portion 42 is provided to be coupled with the sealing cylinder seat 8.

[0065] The technical purpose is to achieve the accommodation and support of the rotary support 5.

[0066] In this embodiment, the rotary support 5 is provided as a bearing, and the outer ring peripheral side surface of the rotary support 5 is provided to be coupled with the mounting seat 4, the inner ring outer end face of the rotary support 5 is provided to be in contact coupling with the connecting disc 6, and the inner ring inner end face of the rotary support 5 and the peripheral side surface of the rotary support 5 are respectively provided to be in contact coupling with the sealing cylinder seat 8.

[0067] By the swivel support 5, the support connection points to the mounting seat 4, the connecting disc 6 and the sealing cylinder seat 8 are formed, the connection with the mounting seat 4 is realized by the swivel support 5, the connection with the connecting disc 6 is realized by the plate part 42, and the connection with the sealing cylinder seat 8 is realized, and the technical purpose is to be one of the components for the intermediate connection between the sealing cylinder seat 8 and the mounting seat 4.

[0068] In the embodiment, the connecting disc 6 is provided as an L-shaped ring body with a through hole body, the through hole body of the connecting disc 6 is provided to be coupled with the bolt of the bolt nut 7, the outer end face of the vertical part of the connecting disc 6 is provided to be contact-coupled with the nut of the bolt nut 7, and the inner end face of the vertical part of the connecting disc 6 is provided to be contact-coupled with the sealing cylinder seat 8, the inner end face of the horizontal part of the connecting disc 6 is provided to be contact-coupled with the swivel support 5.

[0069] By the connecting disc 6, the support connection points to the swivel support 5, the bolt nut 7 and the sealing cylinder seat 8 are formed, the connection with the swivel support 5 is realized by the connecting disc 6, the connection with the bolt nut 7 is realized, and the connection with the sealing cylinder seat 8 is realized, and the technical purpose is the second component for the intermediate connection between the sealing cylinder seat 8 and the mounting seat 4.

[0070] In the embodiment, the bolt of the bolt nut 7 is provided as an internal hexagonal bolt, and the nut of the bolt nut 7 is provided as a hexagonal nut, the inner end heads of the bolt of the bolt nut 7 are respectively provided to be through-coupled with the connecting disc 6 and the sealing cylinder seat 8, and the inner end face of the nut of the bolt nut 7 is provided to be contact-coupled with the connecting disc 6, and the flange body of the bolt of the bolt nut 7 is provided to be contact-coupled with the sealing cylinder seat 8.

[0071] By the bolt nut 7, the support connection points to the connecting disc 6 and the sealing cylinder seat 8 are formed, the connection with the connecting disc 6 is realized by the bolt nut 7, and the connection with the sealing cylinder seat 8 is realized, and the technical purpose is the third component for the intermediate connection between the sealing cylinder seat 8 and the mounting seat 4.

[0072] In the embodiment, the sealing cylinder seat 8 is provided to contain a cylinder part IV 81, a ring part I 82 and a ring part II 83, one of the end faces of the ring part I 82 is provided to be intermediate-coupled with the peripheral side face of the cylinder part IV 81, the other end face of the ring part I 82 is provided to be coupled with the outer end face of the ring part II 83, the inner end port of the cylinder part IV 81 is provided to be contact-coupled with the box seat 1, the outer end head of the cylinder part IV 81 is provided to be through-coupled with the mounting seat 4, the ring part II 83 is provided to be sleeved-coupled with the bolt of the bolt nut 7, the inner end face of the ring part II 83 is provided to be contact-coupled with the flange body of the bolt nut 7, and the outer end face of the ring part II 83 is provided to be contact-coupled with the connecting disc 6, and the peripheral side face of the ring part II 83 is provided to be contact-coupled with the swivel support 5.

[0073] By the sealing cylinder seat 8, the support connection points of the box seat 1, the mounting seat 4, the rotary support 5, the connecting disc 6 and the bolt nut 7 are formed, the connection with the box seat 1 is realized by the cylinder part IV 81, the connection with the mounting seat 4 is realized, the connection with the rotary support 5 is realized by the ring part II 83, the connection with the connecting disc 6 is realized, the connection with the bolt nut 7 is realized, the connection between the cylinder part IV 81 and the ring part II 83 is realized by the ring part I 82, and the technical purpose is to serve as a component for intermediate sealing between the box seat and the drill pipe.

[0074] In this embodiment, the cylinder part IV 81 is provided as a rubber tubular body and the ring part I 82 is provided as a ring-shaped body with an S-shaped cross section, the ring part II 83 is provided as a ring-shaped body with an L-shaped groove on the peripheral side and a through-hole body, and the L-shaped groove of the ring part II 83 is provided to be coupled with the rotary support 5, and the through-hole body of the ring part II 83 is provided to be coupled with the bolt of the bolt nut 7.

[0075] The technical purpose is to realize intermediate rubber sealing between the box seat and the drill pipe.

[0076] In this embodiment, the plate seat 9 is provided as an L-shaped sheet body, and the vertical end face of the plate seat 9 is provided to be coupled with the box seat 1, and the horizontal part of the plate seat 9 is provided to be coupled with the drilling rig rack.

[0077] By the plate seat 9, the support connection points of the box seat 1 are formed, the connection with the box seat 1 is realized by the plate seat 9, and the technical purpose is to serve as a support carrier for the box seat 1.

[0078] In this embodiment, the box seat 1 is provided as a follow-up sealing body together with the mounting seat 4, the rotary support 5, the connecting disc 6, the bolt nut 7 and the sealing cylinder seat 8, and the box seat 1 is provided as a port sealing body together with the flange plate 2 and the hole sealer 3, the box seat 1 is provided as an intermediate connection body together with the plate seat 9, the center line of the box seat 1, the center line of the flange plate 2, the center line of the hole sealer 3, the center line of the mounting seat 4, the center line of the rotary support 5, the center line of the connecting disc 6 and the center line of the sealing cylinder seat 8 are arranged on the same straight line, a plurality of bolt nuts 7 are arranged between the connecting disc 6 and the sealing cylinder seat 8, two plate seats 9 are arranged on the box seat 1, and the cylinder part IV 81 and the seat part 41 are respectively arranged to be coupled with the box part 11.

[0079] The using method of the embodiment is as follows: the screw rod 43 rotates in the threaded hole of the seat 41 and the edge through hole of the plate 42, the screw rod 43 is taken out from the threaded hole of the seat 41 and the edge through hole of the plate 42, the plate 42 is separated from the seat 41, the inner end of the bolt of the bolt nut 7 is put into the through hole of the ring part II 83, the flange of the bolt nut 7 contacts with the inner end surface of the ring part II 83, the ring part II 83 is put on the rotary support 5, the inner ring of the rotary support 5 is put into the L-shaped slot of the ring part II 83, the horizontal inner end surface of the connecting disc 6 is put on the outer end surface of the inner ring of the rotary support 5, the through hole of the connecting disc 6 is installed on the inner end of the bolt of the bolt nut 7, the nut of the bolt nut 7 rotates on the inner end of the bolt of the bolt nut 7, the inner end surface of the nut of the bolt nut 7 acts on the outer end surface of the vertical part of the connecting disc 6, the horizontal part of the connecting disc 6 and the ring part II 83 clamp the inner ring of the rotary support 5, the plate 42 is put on the seat 41, the screw rod 43 rotates reversely in the threaded hole of the seat 41 and the edge through hole of the plate 42, the flange of the screw rod 43 acts on the edge of the inner end surface of the plate 42,

[0080] When the drilling machine is in working state, the cylinder part IV 81 and the hole sealer 3 are sleeved on the drill rod, when the drill rod is in rotating state, under the action of the inner ring and the outer ring of the rotary support 5, the cylinder part IV 81 rotates with the drill rod, when the mud water body is sprayed outwards from the drill hole, the mud water body enters the box part 11 through the cylinder part III 14, the mud water body in the box part 11 is discharged in different directions through the cylinder part I 12 and the cylinder part II 13, under the action of the cylinder part IV 81, the ring part I 82 and the ring part II 83, the mud water body in the box part 11 is prevented from being sprayed to the drilling machine, when the hole sealer 3 is in working state, the hole sealer 3 is in expanded state and blocks the drill hole port, when the drilling machine is in non-working state, the cylinder part IV 81 and the hole sealer 3 are separated from the drill rod.

[0081] In the process of verifying the utility model, the inventor abandoned the prior art feature that one box seat is sleeved on the drill rod, first proposed the technical feature of blocking the mud water body extending to the drilling machine, obtained the first unexpected technical effect: realized the straight jet prevention of the sprayed mud water body by changing the direction of jetting, prevented the jetting safety protection of the operation work area, improved the efficiency of the operation and the construction effect of the construction device, obtained the second unexpected technical effect: realized the temporary storage of the sprayed mud water body, reduced the jetting force of the mud water body, obtained the third unexpected technical effect: realized the sealing of the gap between the drill rod and the box seat 1 by the sealing cylinder seat 8, increased the contact area with the drill rod, buffered the jetting force of the mud water body by the elastic energy storage of the sealing cylinder seat 8, improved the stability of the drill rod, obtained the fourth unexpected technical effect: realized the connection between the sealing cylinder seat 8 and the box seat 1 by the mounting seat 4, the rotary support 5, the connecting disc 6 and the bolt nut 7, so that the sealing cylinder seat 8 no longer rubs with the drill rod, the rotation performance of the drill rod is maintained, obtained the fifth unexpected technical effect: realized the sealing of the drilling port by the hole sealer 3, the jetting drilling is prevented and reprocessed, obtained the sixth unexpected technical effect: realized the detachable installation of the hole sealer 3 by the flange plate 2, facilitated the disassembly and separation with the box seat 1, obtained the sixth unexpected technical effect: realized the installation and support of the box seat 1 by the plate seat 9, improved the installation strength of the box seat 1.

[0082] In the second embodiment of the utility model, the box seat 1, the sealing cylinder seat 8 and the rotary support 5 are connected to each other in the way of blocking the mud water body extending to the drilling machine.

[0083] In the embodiment, the rotary support 5 is connected with the box seat 1 and the sealing cylinder seat 8 in the way of rotating with the drill rod.

[0084] In the embodiment, the first accessory device is arranged between the rotary support 5 and the box seat 1, and the first accessory device is arranged as the mounting seat 4.

[0085] In the embodiment, the second accessory device is arranged between the rotary support 5 and the sealing cylinder seat 8, and the second accessory device is arranged as containing the connecting disc 6 and the bolt nut 7.

[0086] In the embodiment, the third accessory device is arranged on the box seat 1, and the third accessory device is arranged as containing the flange plate 2 and the hole sealer 3.

[0087] In the embodiment, the third accessory device is arranged on the box seat 1, and the third accessory device is arranged as the plate seat 9.

[0088] The second embodiment of the utility model is based on the first embodiment.

[0089] The utility model has the following characteristics:

[0090] 1. The box seat 1, sealing cylinder seat 8 and rotary support 5 are designed, the mud water body sprayed from the drill hole is discharged in different directions through the box seat 1, the mud water body is prevented from being sprayed to the drilling through the sealing cylinder seat 8, the sealing cylinder seat 8 rotates with the drill rod through the rotary support 5, the mud water body extending to the drilling machine is blocked, and the technical problem that one box seat is used to wrap the drill rod is solved, so that the drilling blowout prevention effect is improved.

[0091] 2. The mounting seat 4 is designed, and the rotary support 5 is supported.

[0092] 3. The connecting disc 6 and bolt nut 7 are designed, and the rotary support 5 is connected with the sealing cylinder seat 8.

[0093] 4. The flange plate 2 and hole sealer 3 are designed, and the drilling port is sealed.

[0094] 5. The plate seat 9 is designed, and the box seat 1 is supported and connected.

[0095] 6. The numerical range of the structure shape is limited, the numerical range is a technical feature in the technical scheme of the utility model, not a technical feature obtained by formula calculation or a limited number of tests, and the test shows that the numerical range of the technical feature has good technical effect.

[0096] 7. The technical features of the utility model are designed, and the effects of the single and mutual combination of the technical features are shown by the test, the performance indicators of the utility model are at least 1.7 times of the existing performance indicators, and the utility model has good market value through evaluation.

[0097] Other technical features associated with the box seat 1, sealing cylinder seat 8 and rotary support 5 for blocking the mud water body extending to the drilling machine are also one of the embodiments of the utility model, and the technical features of the above-mentioned embodiments can be combined arbitrarily, in order to meet the requirements of the patent law, the patent implementation details and the examination guide, the embodiments of all possible combinations of the technical features in the above-mentioned embodiments are not described.

[0098] Therefore, in the field of drilling blowout prevention devices for drilling machines, the technical content including the box seat 1 arranged on the drill rod, the sealing cylinder seat 8 arranged between the drill rod and the box seat 1, and the rotary support 5 arranged between the sealing cylinder seat 8 and the box seat 1 is within the protection scope of the utility model.

Claims

1. A blowout preventer for a drilling rig, characterised in that: The box seat (1) is arranged on the drill pipe, the sealing cylinder seat (8) is arranged between the drill pipe and the box seat (1), and the rotary support (5) is arranged between the sealing cylinder seat (8) and the box seat (1).

2. A blowout preventer for a drilling rig as defined in claim 1, characterized in that: The box seat (1), the sealing cylinder seat (8) and the rotary support (5) are connected to each other in a manner of blocking the mud water body extending to the drilling machine.

3. A blowout preventer for a drilling rig as defined in claim 2, characterized in that: The rotary support (5) is connected to the box seat (1) and the sealing cylinder seat (8) in a manner of rotating with the drill pipe.

4. The drilling blowout preventer for a drilling rig of claim 1, characterized by: The first accessory device is further arranged between the rotary support (5) and the box seat (1), and the first accessory device is arranged as the mounting seat (4). The second accessory device is further arranged between the rotary support (5) and the sealing cylinder seat (8), and the second accessory device is arranged as the connecting disc (6) and the bolt nut (7). The third accessory device is further arranged on the box seat (1), and the third accessory device is arranged as the flange plate (2) and the packer (3). The third accessory device is further arranged on the box seat (1), and the third accessory device is arranged as the plate seat (9).

5. A blowout preventer for a drilling rig as defined in claim 4, characterized in that: The mounting seat (4) and the plate seat (9) are arranged on the box seat (1), the flange plate (2) is arranged between the packer (3) and the box seat (1), the rotary support (5) is arranged between the sealing cylinder seat (8) and the mounting seat (4), the connecting disc (6) is arranged between the rotary support (5) and the sealing cylinder seat (8), and the bolt nut (7) is arranged between the connecting disc (6) and the sealing cylinder seat (8).

6. A blowout preventer for a drilling rig as defined in claim 5, characterized in that: The box seat (1) is arranged as the box part (11), the cylinder part I (12), the cylinder part II (13) and the cylinder part III (14), the upper end face of the box part (11) is connected to the inner end port of the cylinder part I (12) in a communication mode, the lower end face of the box part (11) is connected to the inner end port of the cylinder part II (13) in a communication mode, the inner end face of the box part (11) is connected to the inner end port of the cylinder part III (14) in a communication mode, the outer end face edge of the box part (11) is connected to the mounting seat (4), the middle of the outer end face of the box part (11) is connected to the sealing cylinder seat (8) in a contact mode, the lower end face edge of the box part (11) is connected to the plate seat (9), and the outer end port of the cylinder part III (14) is connected to the flange plate (2). The box part (11) is arranged as a box-shaped body, the cylinder part I (12) and the cylinder part II (13) are arranged as tubular bodies with annular groove bodies on the outer end of the peripheral side, and the cylinder part III (14) is arranged as a tubular body.

7. A blowout preventer for a drilling rig as defined in claim 5, characterized in that: The rotary support (5) is arranged as a bearing, the outer ring peripheral side of the rotary support (5) is connected to the mounting seat (4), the inner ring outer end face of the rotary support (5) is connected to the connecting disc (6) in a contact mode, and the inner ring inner end face of the rotary support (5) and the peripheral side of the rotary support (5) are connected to the sealing cylinder seat (8) in a contact mode.

8. The drilling blowout preventer for a drilling rig of claim 5, characterized by: The sealing cylinder seat (8) is provided with a cylinder part IV (81), a ring part I (82) and a ring part II (83), one end surface of the ring part I (82) is connected with the peripheral side surface of the cylinder part IV (81), the other end surface of the ring part I (82) is connected with the outer end surface of the ring part II (83), the inner end port of the cylinder part IV (81) is connected with the box seat (1), the outer end head of the cylinder part IV (81) is penetrated through the mounting seat (4), the ring part II (83) is connected with the bolt sleeve of the bolt nut (7), the inner end surface of the ring part II (83) is contacted with the flange body of the bolt nut (7), the outer end surface of the ring part II (83) is contacted with the connecting disc (6), the peripheral side surface of the ring part II (83) is contacted with the rotary support (5), Or, the cylinder part IV (81) is provided with a rubber pipe body, the ring part I (82) is provided with a ring body with S-shaped section, the ring part II (83) is provided with a ring body with L-shaped groove body and through hole body, the L-shaped groove body of the ring part II (83) is connected with the rotary support (5), the through hole body of the ring part II (83) is connected with the bolt of the bolt nut (7).

9. The drilling blowout preventer for a drilling rig of claim 5, characterized by: The mounting seat (4) is provided with a seat part (41), a plate part (42) and a screw part (43), the outer end port of the seat part (41) is contacted with the inner end surface edge of the plate part (42), the inner end head of the screw part (43) is penetrated through the edge of the plate part (42), the inner end head of the screw part (43) is screwed with the outer end port of the seat part (41), the flange body of the screw part (43) is contacted with the inner end surface edge of the plate part (42), the inner end port of the seat part (41) is connected with the box seat (1), the peripheral inner wall of the seat part (41) is connected with the rotary support (5), the plate part (42) is sleeved with the sealing cylinder seat (8), Or, the seat part (41) is provided with a pipe body with threaded hole body at the outer end port, the plate part (42) is provided with a sheet body with edge through hole body and middle through hole body, the screw part (43) is provided with a hexagonal bolt, the threaded hole body of the seat part (41) and the edge through hole body of the plate part (42) are respectively connected with the screw part (43), the middle through hole body of the plate part (42) is connected with the sealing cylinder seat (8), Or, the connecting disc (6) is provided with an L-shaped ring body with a through hole body at the vertical part, the through hole body of the connecting disc (6) is connected with the bolt of the bolt nut (7), the outer end surface of the vertical part of the connecting disc (6) is contacted with the nut of the bolt nut (7), the inner end surface of the vertical part of the connecting disc (6) is contacted with the sealing cylinder seat (8), the inner end surface of the horizontal part of the connecting disc (6) is contacted with the rotary support (5), Or, the bolt of the bolt-nut (7) is provided as an inner hexagonal bolt and the nut of the bolt-nut (7) is provided as a hexagonal nut, the inner end of the bolt of the bolt-nut (7) is provided as penetratingly coupled with the connecting disc (6) and the sealing cylinder base (8) respectively and the inner end surface of the nut of the bolt-nut (7) is provided as contactingly coupled with the connecting disc (6), the bolt flange body of the bolt-nut (7) is provided as contactingly coupled with the sealing cylinder base (8), Or, the flange disc (2) is provided as a flange joint, the outer end surface of one disc part of the flange disc (2) is provided as coupled with the box base (1) and the outer end surface of the other disc part of the flange disc (2) is provided as coupled with the hole sealer (3), Or, the hole sealer (3) is provided as a mine inflatable capsule hole sealer and the inner end surface of the hole sealer (3) is provided as coupled with the flange disc (2), Or, the plate base (9) is provided as an L-shaped sheet body and the vertical part end surface of the plate base (9) is provided as coupled with the box base (1), the horizontal part of the plate base (9) is provided as coupled with the drilling rig rack.

10. A blowout preventer for a drilling rig according to any one of claims 1 to 9, characterized in that: The box base (1) is provided as distributed in the manner of a follow-up sealing body with the mounting base (4), the rotary support (5), the connecting disc (6), the bolt-nut (7) and the sealing cylinder base (8) and the box base (1) is provided as distributed in the manner of a port sealing body with the flange disc (2) and the hole sealer (3), the box base (1) is provided as distributed in the manner of an intermediate connecting body with the plate base (9), Or, the center line of the box base (1), the center line of the flange disc (2), the center line of the hole sealer (3), the center line of the mounting base (4), the center line of the rotary support (5), the center line of the connecting disc (6) and the center line of the sealing cylinder base (8) are provided on the same straight line, a plurality of bolt-nuts (7) are provided between the connecting disc (6) and the sealing cylinder base (8), two plate bases (9) are provided on the box base (1), the cylinder part IV (81) and the base part (41) are provided as coupled with the box part (11) respectively.

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