CN111503307A - Multifunctional valve special for drilling machine - Google Patents

Multifunctional valve special for drilling machine Download PDF

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Publication number
CN111503307A
CN111503307A CN202010300953.5A CN202010300953A CN111503307A CN 111503307 A CN111503307 A CN 111503307A CN 202010300953 A CN202010300953 A CN 202010300953A CN 111503307 A CN111503307 A CN 111503307A
Authority
CN
China
Prior art keywords
core
hemispherical
rotating
rod
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010300953.5A
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Chinese (zh)
Inventor
卓友钦
洪宝山
卓志坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianhong Valve Technology Quanzhou Co ltd
Original Assignee
Tianhong Valve Technology Quanzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianhong Valve Technology Quanzhou Co ltd filed Critical Tianhong Valve Technology Quanzhou Co ltd
Priority to CN202010300953.5A priority Critical patent/CN111503307A/en
Publication of CN111503307A publication Critical patent/CN111503307A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention provides a multifunctional valve special for a drilling machine, which has reasonable structural design and simple and easy operation, and comprises a valve body, wherein the valve body is provided with a first channel for a drill rod and a drill bit to pass through, a ball core assembly for limiting the drill rod and the drill bit to pass through is arranged in the first channel, the upper end of the valve body is provided with a second channel, a valve rod for driving the ball core assembly to rotate is arranged in the second channel in a penetrating manner, the upper end of the valve rod is connected with a driving piece for driving the valve rod to rotate, first sealing devices for preventing dust or liquid from entering a gap between the ball core assembly and the first channel are respectively arranged between two sides of the ball core assembly and the first channel, the ball core assembly comprises a first hemispherical core and a second hemispherical core, and the first hemispherical core and the second hemispherical core are respectively provided with a first through hole for the drill rod and the drill bit to pass through along the direction of, And a limiting device for limiting the drill bit to pass through is arranged between the first hemispherical core and the second hemispherical core.

Description

Multifunctional valve special for drilling machine
Technical Field
The invention relates to the technical field of valves of drilling machines, in particular to a multifunctional valve special for a drilling machine.
Background
The drilling machine carries out operation on an operation surface by rotating feeding and rotating of the telescopic drill rod, the operation surface is cut through the drill bit on the drill rod, the valve body is arranged at the lower end of the drilling machine, the valve body can seal the drilling machine body when the drilling machine does not operate, the valve body is opened before the operation is carried out, the drill rod and the drill bit penetrate through the valve body to carry out the operation on the operation surface, the drill rod and the drill bit are retracted after the operation is finished and then the valve body is closed, a closed cavity formed by the drilling machine body is used for protecting the drill bit and internal components, and meanwhile, manual injury caused by misoperation is avoided. Because the diameter of drill bit is greater than the diameter of drilling rod, so drill bit and drilling rod pass behind the valve body, there is the interval between the passageway of valve body case and the drilling rod, and the rig can cause the granule of operation face to splash and the dust flies upward when carrying out the operation to the operation face, inside these granule and dust can enter into the rig body through the interval between case and the drilling rod, difficult clearance, to the inside wearing and tearing of rig, influence the use of rig, be unfavorable for the maintenance of rig can increase the danger when the operation simultaneously. The scheme is generated in order to prevent particles and dust during operation from influencing the use of the drilling machine.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the multifunctional valve special for the drilling machine, which has the advantages of reasonable structural design and simplicity in operation.
In order to solve the technical problem, the multifunctional valve special for the drilling machine comprises a valve body, wherein a first channel for a drill rod and a drill bit to penetrate through is formed in the valve body, a ball core assembly for limiting the drill rod and the drill bit to penetrate through is arranged in the first channel, a second channel is formed in the upper end of the valve body, a valve rod for driving the ball core assembly to rotate penetrates through the second channel, the upper end of the valve rod is connected with a driving piece for driving the valve rod to rotate, first sealing devices for preventing dust or liquid from entering a gap between the ball core assembly and the first channel are respectively arranged between two sides of the ball core assembly and the first channel, the ball core assembly comprises a first hemispherical core and a second hemispherical core, and first through holes for the drill rod and the drill bit to penetrate through are respectively formed in the directions of vertical matching surfaces of the first hemispherical core and the second hemispherical core, And a limiting device for limiting the drill bit to pass through is arranged between the first hemispherical core and the second hemispherical core.
The further improvement is that: the limiting device comprises a rotating ring, the rotating ring is rotatably arranged between a first hemispherical core and a second hemispherical core, the rotating ring is combined into a sphere with the first hemispherical core and the second hemispherical core, a plurality of rotating blocks which can be mutually closed or separated are rotatably arranged in the middle of the rotating ring, and the rotating blocks form a round hole for a drill rod to pass through after being closed, a driving rod for driving the rotating blocks to rotate is connected between the rotating blocks, two ends of the driving rod are respectively rotatably arranged on the rotating ring and the rotating blocks, a driving protrusion for driving the rotating ring to rotate is arranged on the side wall of the rotating ring, a supply is arranged at the other end of the valve body relative to a second channel, the rotating protrusion penetrates out a sliding way, and the sliding way is arranged in the moving direction perpendicular to the drill rod.
The further improvement is that: the rotating ring is provided with a plurality of sliding grooves along the radial direction, the first hemispherical core is provided with a plurality of limiting rods, the second hemispherical core is provided with a plurality of limiting holes, the rotating ring is rotatably sleeved on the limiting rods through the sliding grooves, and the free ends of the limiting rods are fixedly inserted in the limiting holes.
The further improvement is that: the upper end face and the lower end face of one side of the rotating block are respectively provided with a rotating protrusion, and the matching surfaces of the first hemispherical core and the second hemispherical core are respectively provided with a rotating groove matched with the rotating protrusion.
The further improvement is that: the lower end of the valve rod is upwards provided with a prismatic mounting groove, the first hemispherical core and the second hemispherical core are respectively provided with a first mounting protrusion and a second mounting protrusion, and the shapes of the first mounting protrusion and the second mounting protrusion after being matched are matched with the prismatic mounting groove.
The further improvement is that: the first mounting protrusion and the second mounting protrusion are integrally formed with the first hemispherical core and the second hemispherical core, respectively.
The further improvement is that: the rotating bulge is connected with a rotating rod used for driving the rotating ring to rotate.
By adopting the technical scheme, the invention has the beneficial effects that: the invention has the following advantages:
1. the invention is arranged between the drilling machine body and the drilling machine base to form a whole with the drilling machine, has simple structure and convenient use, seals the inside of the drilling machine body when the drilling machine does not work, and protects a drill rod, a drill bit and some internal components inside the drilling machine; after drill bit and drilling rod passed the ball core subassembly during the rig operation, the manual commentaries on classics piece that rotates between dwang drive first hemisphere core and the second hemisphere core rotates, make to seal each other between the commentaries on classics piece and form the round hole that can only supply the drilling rod to stretch out and draw back and slide, avoid dust and the particulate matter that the rig produced when the operation to pass the ball core subassembly and enter into the inside part of rig and harm, can prolong the life of rig, reduce the maintenance number of times of rig, and the maintenance time of extension rig that can be appropriate, reduce the use cost of rig simultaneously.
2. The matching surfaces of the first hemispherical core, the second hemispherical core, the rotating ring and the rotating block are smooth mirror surfaces, and proper liquid is sprayed during installation, so that the first hemispherical core, the second hemispherical core, the rotating ring and the rotating block are tightly jointed, the sealing effect can be enhanced, the friction force of mutual rotation can be greatly reduced, the rotating ring and the rotating block can conveniently rotate in the first hemispherical core and the second hemispherical core relative to the first hemispherical core and the second hemispherical core, and the drilling machine is more convenient to use.
3. The driving part for driving the valve rod to rotate adopts the hand wheel instead of the straight handle, so that the drilling machine can drive the hand wheel to rotate in any direction of three hundred sixty degrees under severe environment, the condition that the handle needs a specific angle to drive the valve rod to rotate is avoided, and the drilling machine is convenient to use.
Drawings
Fig. 1 is a schematic view of an installation structure of a multifunctional valve special for a drilling machine according to an embodiment of the invention.
Fig. 2 is a schematic view of the internal structure of the installation of the multifunctional valve special for the drilling machine in the embodiment of the invention.
Fig. 3 is a schematic view of the internal structure of the installation of the multifunctional valve special for the drilling machine in the embodiment of the invention.
Fig. 4 is a schematic view of the internal structure of the multifunctional valve special for the drilling machine according to the embodiment of the invention.
Fig. 5 is a schematic structural diagram of a valve core of the multifunctional valve special for the drilling machine in the embodiment of the invention.
Fig. 6 is a schematic structural diagram of an inner core in a valve core of the multifunctional valve special for the drilling machine according to the embodiment of the invention.
Fig. 7 is a schematic structural diagram of an inner core in a valve core of the multifunctional valve special for the drilling machine according to the embodiment of the invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 7, the multifunctional valve special for a drilling machine disclosed in the embodiments of the present invention includes a valve body 10, the valve body 10 is formed by two half valve bodies which are separately cast and fixed together by fastening bolts, the valve body 10 is provided with a first channel 11 through which a drill rod 7 and a drill bit 6 pass, a ball core assembly 12 for limiting the drill rod 7 and the drill bit 6 from passing through is arranged in the first channel 11, a second channel 13 is arranged at an upper end of the valve body 10, a valve rod 14 for driving the ball core assembly 12 to rotate is arranged in the second channel 13 in a penetrating manner, a bushing 4 for sealing the valve rod 14 is arranged in a free end of the second channel 13, an upper end of the valve rod 14 is connected to a driving member for driving the valve rod 14 to rotate, the driving member is a handwheel 15, two end portions of the valve body 10 are respectively provided with locking holes which are matched with a drilling, the valve body 10 is fixed with the lower end of the drilling machine body 9 and the upper end of a drilling machine base (not shown in the figure) through bolts, first sealing devices for preventing dust or liquid from entering a gap between the ball core assembly 12 and the first channel 11 are respectively arranged between the two sides of the ball core assembly 12 and the first channel 11, the first sealing device is a first rubber sealing ring 5, the inner wall of the valve body 10 is provided with an installation concave platform 8 for installing the first rubber sealing ring 5, the first rubber sealing ring 5 is fixedly arranged on an installation concave platform 8 on the inner wall of the valve body 10, the ball core assembly 12 comprises a first semispherical core 16 and a second semispherical core 17, the first semispherical core 16 and the second semispherical core 17 are respectively provided with a first through hole 18 and a second through hole 19 along the direction of the vertical matching surface for the drill rod 7 and the drill bit 6 to pass through, a limiting device for limiting the drill bit 6 to pass through is arranged between the first hemispherical core 16 and the second hemispherical core 17.
The limiting device comprises a rotating ring 20, the rotating ring 20 is rotatably arranged between a first hemispherical core 16 and a second hemispherical core 17, the rotating ring 20, the first hemispherical core 16 and the second hemispherical core 17 are combined into a sphere, five sliding grooves 21 are uniformly formed in the rotating ring 20 along the radial direction, five limiting rods 22 are uniformly arranged on the first hemispherical core 16, five limiting holes 23 are uniformly formed in the second hemispherical core 17, the rotating ring 20 is rotatably sleeved on the limiting rods 22 through the sliding grooves 21, the free ends of the limiting rods 22 are fixedly inserted in the limiting holes 23 through gluing, five rotating blocks 24 which can be mutually closed or separated are rotatably arranged in the middle of the rotating ring 20, round holes 26 for the drill rods 7 to pass through are formed in the middle of the five rotating blocks 24 after being closed, rotating protrusions 27 are respectively arranged on the upper end face and the lower end face of one side of each rotating block 24, and matching surfaces of the rotating protrusions 27 are respectively arranged on matching surfaces of the first hemispherical core 16 and the second hemispherical core 17 The rotary groove 28, be connected with between the change 20 and the change 24 and be used for making change 20 drive change 24 pivoted actuating lever 29, change 24 with have seted up arc groove 3 on the change 24 respectively, actuating lever 29 both ends respectively rotatable set up with in the arc groove 3, arc groove 3 open end is provided with and is used for supplying actuating lever 29 pivoted abdication space 30, be provided with on the change 20 lateral wall and be used for driving change 20 pivoted drive arch 31, offer on the valve body 10 for the second passageway 13 on the other end supply rotate the slide 32 that arch 27 worn out the slip, the direction is seted up perpendicular to the direction of motion of drilling rod 7 to slide 32, be connected with on the rotation arch 27 and be used for driving change 20 pivoted dwang 33, the fit surface each other of first hemisphere core 16, second hemisphere core 17, change 20 and change 24 is smooth mirror surface, the friction force of mutual rotation can be greatly reduced, and the rotation ring 20 and the rotation block 24 can be conveniently rotated in the first hemispherical core 16 and the second hemispherical core 17 relative to the first hemispherical core 16 and the second hemispherical core 17.
The lower end part of the valve rod 14 is upwards provided with a prismatic mounting groove 34, the first hemispherical core 16 and the second hemispherical core 17 are respectively provided with a first mounting protrusion 35 and a second mounting protrusion 36, the shape of the first mounting protrusion 35 matched with the second mounting protrusion 36 is matched with the prismatic mounting groove 34, the first mounting protrusion 35 and the second mounting protrusion 36 are respectively integrated with the first hemispherical core 16 and the second hemispherical core 17, the first hemispherical core 16 and the second hemispherical core 17 are glued through a limiting rod 22 and a limiting hole 23 to enable the first hemispherical core 16 and the second hemispherical core 17 to be clamped with an annular rotating block 24 and fixed together, meanwhile, the matching surfaces of the first hemispherical core 16, the second hemispherical core 17, the rotating ring 20 and the rotating block 24 are smooth mirror surfaces, the first hemispherical core 16, the second hemispherical core 17, the rotating ring 20 and the rotating block 24 are attracted with each other after being wetted, and the first hemispherical core 16, the second hemispherical core 36, the prismatic mounting groove 34 of the valve rod 14 further limits the first hemispherical core 16, the second hemispherical core 36, The second hemispherical cores 17 are firmly fixed to each other.
The invention discloses a use method of a multifunctional valve special for a drilling machine. The base and the operation surface are fixed, the handwheel 15 is rotated to drive the valve rod 14 to drive the ball core assembly 12 to rotate, so that the first semi-ball core 16 and the first through hole 18 and the second through hole 19 on the second semi-ball core 17 of the ball core assembly 12 are parallel to the movement direction of the drill rod 7, and the interior of the drilling machine body is communicated with the interior of the base. And driving the drill rod 7 to move, and stopping driving the drill rod 7 after the drill rod 7 and the drill bit 6 of the drilling machine respectively pass through the second through hole 19, the rotary ring 20 and the first through hole 18. Manually rotate dwang 33, dwang 33 drives swivel 20 and rotates between first hemisphere core 16, second hemisphere core 17, swivel 20 drives five spout 21 and slides under the drive of dwang 33, and the biggest angle of sliding of restricting spout 21 under the restriction of gag lever post 22 on first hemisphere core 16, swivel 20 rotates and drives the corresponding rotation of five actuating lever 29, under the protruding 27 spacing of rotation of 24 one end of swivel, five actuating lever 29 promote the one end of five swivel 24 and rotate along rotating protruding 27, when swivel 20 rotates the biggest angle, actuating lever 29 drives five swivel 24 and rotates and close into the round hole 26 that supplies drilling rod 7 to pass each other, the diameter size of round hole 26 is infinitely close with the diameter size that drilling rod 7 is located round hole 26 department. And then the drilling machine is started to work, and the drilling machine controls the drill rod 7 to slide up and down in the round hole 26 to cut a working surface. After the operation is completed, the rotating rod 33 is driven to rotate reversely to reset, the rotating rod 33 drives the rotating ring 20 to reset, the rotating ring 20 drives the driving rod 29 to move reversely to pull the rotating block 24 to rotate, so that the rotating block 24 is completely separated from the space between the first through hole 18 and the second through hole 19 and completely enters the space between the first hemispherical core 16 and the second hemispherical core 17. And then, a drill stem 7 of the drilling machine is controlled to drive the drill bit 6 to be folded, after the drill bit 6 passes through the first through hole 18, the rotary ring 20 and the second through hole 19, the hand wheel 15 is rotated reversely, the hand wheel 15 drives the ball core assembly 12 to rotate, so that the first through hole 18 and the second through hole 19 are perpendicular to the moving direction of the drill stem 7, and when the hand wheel 15 drives the ball core assembly 12 to rotate, the rotary ring 20 rotates along the central axis of the driving protrusion 31 to drive the driving protrusion 31 to rotate in the slide way 32. And then the base is detached from the working surface.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are included to illustrate the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (7)

1. Special multifunctional valve of rig, including the valve body, the first passageway that supplies drilling rod and drill bit to pass is seted up to the valve body, be provided with in the first passageway and be used for restricting drilling rod and drill bit and pass the ball core subassembly, the second passageway has been seted up to the valve body upper end, wear to be equipped with in the second passageway and be used for driving ball core subassembly pivoted valve rod, the upper end connection of valve rod is used for the drive valve rod pivoted driving piece, ball core subassembly both sides with be provided with the first sealing device who prevents dust or liquid entering clearance between ball core subassembly and the first passageway between the first passageway respectively, its characterized in that: the ball core assembly comprises a first hemispherical core and a second hemispherical core, wherein a first through hole and a second through hole for the drill rod and the drill bit to pass through are formed in the direction of a vertical matching surface of the first hemispherical core and the second hemispherical core respectively, and a limiting device for limiting the drill bit to pass through is arranged between the first hemispherical core and the second hemispherical core.
2. The rig-specific multi-function valve of claim 1, wherein: the limiting device comprises a rotating ring, the rotating ring is rotatably arranged between a first hemispherical core and a second hemispherical core, the rotating ring is combined into a sphere with the first hemispherical core and the second hemispherical core, a plurality of rotating blocks which can be mutually closed or separated are rotatably arranged in the middle of the rotating ring, and the rotating blocks form a round hole for a drill rod to pass through after being closed, a driving rod for driving the rotating blocks to rotate is connected between the rotating blocks, two ends of the driving rod are respectively rotatably arranged on the rotating ring and the rotating blocks, a driving protrusion for driving the rotating ring to rotate is arranged on the side wall of the rotating ring, a supply is arranged at the other end of the valve body relative to a second channel, the rotating protrusion penetrates out a sliding way, and the sliding way is arranged in the moving direction perpendicular to the drill rod.
3. The rig-specific multi-function valve of claim 2, wherein: the rotating ring is provided with a plurality of sliding grooves along the radial direction, the first hemispherical core is provided with a plurality of limiting rods, the second hemispherical core is provided with a plurality of limiting holes, the rotating ring is rotatably sleeved on the limiting rods through the sliding grooves, and the free ends of the limiting rods are fixedly inserted in the limiting holes.
4. The rig-specific multi-function valve of claim 2 or 3, wherein: the upper end face and the lower end face of one side of the rotating block are respectively provided with a rotating protrusion, and the matching surfaces of the first hemispherical core and the second hemispherical core are respectively provided with a rotating groove matched with the rotating protrusion.
5. The rig-specific multi-function valve of claim 2, wherein: the lower end of the valve rod is upwards provided with a prismatic mounting groove, the first hemispherical core and the second hemispherical core are respectively provided with a first mounting protrusion and a second mounting protrusion, and the shapes of the first mounting protrusion and the second mounting protrusion after being matched are matched with the prismatic mounting groove.
6. The rig-specific multi-function valve of claim 5, wherein: the first mounting protrusion and the second mounting protrusion are integrally formed with the first hemispherical core and the second hemispherical core, respectively.
7. The rig-specific multi-function valve of claim 2, wherein: the rotating bulge is connected with a rotating rod used for driving the rotating ring to rotate.
CN202010300953.5A 2020-04-16 2020-04-16 Multifunctional valve special for drilling machine Pending CN111503307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010300953.5A CN111503307A (en) 2020-04-16 2020-04-16 Multifunctional valve special for drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010300953.5A CN111503307A (en) 2020-04-16 2020-04-16 Multifunctional valve special for drilling machine

Publications (1)

Publication Number Publication Date
CN111503307A true CN111503307A (en) 2020-08-07

Family

ID=71872664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010300953.5A Pending CN111503307A (en) 2020-04-16 2020-04-16 Multifunctional valve special for drilling machine

Country Status (1)

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CN (1) CN111503307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115899305A (en) * 2022-11-08 2023-04-04 江苏大昌燃气设备有限公司 Explosion-proof air valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110128377A (en) * 2010-05-22 2011-11-30 김청균 Half hollow ball valve
CN102767632A (en) * 2012-07-18 2012-11-07 上海凯科阀门制造有限公司 Ball valve and method for rigidity seal between valve element and valve seat in ball valve
CN108253147A (en) * 2018-03-14 2018-07-06 嘉兴岱源真空科技有限公司 A kind of combination throttle valve
CN109058571A (en) * 2018-09-28 2018-12-21 盐城欧润石化设备制造有限公司 A kind of pipeline valve easy to use
CN109114233A (en) * 2018-10-11 2019-01-01 银川特锐宝信息技术服务有限公司 A kind of liquefied natural gas pneumatic inflation connection protective device
CN209150519U (en) * 2018-12-05 2019-07-23 国网辽宁省电力有限公司阜新供电公司 Power screen cabinet threading opening plugging device
CN210196527U (en) * 2019-06-12 2020-03-27 山东省天然气管道有限责任公司 Ball valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110128377A (en) * 2010-05-22 2011-11-30 김청균 Half hollow ball valve
CN102767632A (en) * 2012-07-18 2012-11-07 上海凯科阀门制造有限公司 Ball valve and method for rigidity seal between valve element and valve seat in ball valve
CN108253147A (en) * 2018-03-14 2018-07-06 嘉兴岱源真空科技有限公司 A kind of combination throttle valve
CN109058571A (en) * 2018-09-28 2018-12-21 盐城欧润石化设备制造有限公司 A kind of pipeline valve easy to use
CN109114233A (en) * 2018-10-11 2019-01-01 银川特锐宝信息技术服务有限公司 A kind of liquefied natural gas pneumatic inflation connection protective device
CN209150519U (en) * 2018-12-05 2019-07-23 国网辽宁省电力有限公司阜新供电公司 Power screen cabinet threading opening plugging device
CN210196527U (en) * 2019-06-12 2020-03-27 山东省天然气管道有限责任公司 Ball valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115899305A (en) * 2022-11-08 2023-04-04 江苏大昌燃气设备有限公司 Explosion-proof air valve
CN115899305B (en) * 2022-11-08 2024-02-20 江苏大昌燃气设备有限公司 Explosion-proof gas valve

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Application publication date: 20200807