CN110939337B - Self-positioning device for opening rotary door of loading platform body of rotary drilling rig - Google Patents
Self-positioning device for opening rotary door of loading platform body of rotary drilling rig Download PDFInfo
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- CN110939337B CN110939337B CN201911387278.8A CN201911387278A CN110939337B CN 110939337 B CN110939337 B CN 110939337B CN 201911387278 A CN201911387278 A CN 201911387278A CN 110939337 B CN110939337 B CN 110939337B
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- hole
- positioning rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/16—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted only at one end and having an elongated slot
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention provides a self-positioning device for opening a rotary door of a platform body of a rotary drilling rig, which comprises a positioning rod, a bracket and an L-shaped clamping plate, wherein the bracket is arranged on a door bracket; the positioning rod can be lifted upwards, and after the positioning rod is lifted, the inverted whisker block can be retracted into the second through hole along with the closing of the door, so that the locking of the door plate is released, and the door plate can be smoothly rotated to be closed. The invention has the advantages of few parts, simple structure, long service life, convenient installation, low maintenance cost and low cost, and is very practical.
Description
Technical Field
The invention relates to a loading platform of a rotary drilling rig, in particular to a self-positioning device for opening a rotary door of a body of the loading platform of the rotary drilling rig.
Background
The rotary drilling rig is one of pile working machines which are introduced and developed in recent years in China, is mainly applied to oversized bridge piles of various highways and railway bridge beams and special-structure bearing foundation piles of other large-scale buildings, and is a main pile foundation soil sampling and pore forming tool. The rotary drilling rig has the characteristics of high power, high drilling speed, high automation degree, large drilling caliber, accurate positioning, high working efficiency and the like, and has more and more outstanding advantages in construction.
The loading platform is a main supporting platform of a control room, a mast system, a drilling system and a hoisting system of the rotary drilling rig, and the bottom of the loading platform is connected with the chassis through a rotary support. The hydraulic system and electromechanical equipment for controlling the mast system, the drilling system and the hoisting system are arranged in the cabinets on two sides of the upper platform body, the doors of the cabinets on two sides of the upper platform body are generally arranged as vertical covering door plates, wherein the door plates are divided into fixed doors and unscrewed doors, the fixed doors cannot be opened, one ends of the unscrewed door plates are provided with hinges for connecting door brackets, the other ends of the unscrewed door plates are provided with key locks, the door plates can be manually opened or closed, the main function of the unscrewed door is that when electromechanical or hydraulic faults occur in the cabinets corresponding to the unscrewed door, the door plates facilitate the timely door opening inspection of workers and serve as maintenance channels of the workers, but after the door is opened, if the door plates cannot be positioned and fixed in time, the door plates can rotate at will under the action of dead weight or other external forces, so that the normal construction and safety of the maintenance workers are affected. Therefore, there is a need in the art for a solution to this problem.
Disclosure of Invention
The invention aims to provide a self-positioning device for opening a rotary door of a car body of a loading platform of a rotary drilling rig, which aims to solve the problems in the background art.
The self-positioning device for the rotary opening door of the upper car platform body of the rotary drilling rig comprises a positioning rod, an inverted whisker block, a bracket and an L-shaped clamping plate, wherein the bracket is arranged on a door bracket of the rotary opening door of the upper car platform body cabinet body, and the clamping plate is arranged on a door plate of the rotary opening door of the upper car platform body cabinet body;
The bracket comprises a bracket body and a supporting plate arranged on the bracket body, the plate surface of the supporting plate is parallel to the rotation plane of the door plate, and the supporting plate is provided with a first through hole;
the L-shaped clamping plate comprises a connecting part connected with the door plate and a vertical part vertical to the door plate, the plate surface of the vertical part is arranged along the vertical direction, and a through hole II is formed in the vertical part;
The positioning rod comprises a positioning rod main body which is positioned in the middle and horizontally arranged, and a first end head and a second end head which are respectively arranged at the head end and the tail end of the positioning rod main body, wherein the positioning rod main body horizontally penetrates through a second through hole of the vertical part;
The first end head comprises an L-shaped first elbow and a first extension section which is continuously arranged along the vertical direction of the first elbow, the first extension section vertically penetrates through a first through hole of the supporting plate, the positioning rod can rotate around the first through hole, and the tail end of the first extension section is provided with a limiting part for preventing the first extension section from falling out of the first through hole;
when the door plate of the rotary door is opened to pull the door plate to rotate around the connecting hinge on the door bracket, the clamping plate drives the positioning rod to rotate along with the door plate through the through hole II, and the positioning rod can rotate around the through hole I;
The second end head comprises an L-shaped second elbow and a second extension section, the second extension section is arranged continuously along the vertical direction, the vertical length of the second extension section is larger than the vertical dimension of the second through hole, and the second extension section is used for preventing the tail end of the second extension section from falling out of the second through hole when the positioning rod rotates to the maximum angle along with the opening of the door plate;
The inverted whisker block is arranged in a protruding mode in the direction of the second end, close to the second end, of the positioning rod main body, the inverted whisker block is arranged into a wedge-shaped structure, the vertical size of the inverted whisker block is gradually increased in the direction of the second end, and the initial position, far away from the tail end of the positioning rod, of the inverted whisker block and the positioning rod main body are arranged into smooth transition, so that the inverted whisker block can smoothly enter the second through hole, and the vertical size of the second through hole is larger than the sum of the inverted whisker block at the vertical maximum size position of the inverted whisker block and the vertical size of the positioning rod main body, so that the inverted whisker block can pass through the second through hole;
The horizontal distance is kept between the inverted whisker block and the second extension section, the horizontal distance is used as a locking groove for locking the vertical part of the clamping plate, and the length of the positioning rod and the position of the inverted whisker block are set to satisfy the following conditions: when the door plate is rotated to be opened to a certain angle, the vertical part of the clamping plate arranged on the door plate is just clamped in the locking groove, so that the door plate is self-positioned and locked at the current opening angle;
The setting position of the limiting component at the tail end of the first extension section is reserved with an adjusting distance for enabling the first extension section to move upwards in the first through hole, so that the positioning rod can be lifted upwards, after the positioning rod is lifted, the inverted whisker block can be retracted into the second through hole along with the rotation closing of the door plate, and therefore the locking of the door plate is relieved, and the door plate can be smoothly rotated and closed.
Preferably, the bracket is arranged on any connecting hinge between the door plate and the door bracket, and the connecting hinge is arranged at a position which is lower than the connecting hinge.
Further, the end of the first extending section is provided with a pin hole, the limiting component at the end of the first extending section comprises a gasket and a cotter pin, the cotter pin is arranged in the pin hole in a penetrating mode to prevent the first extending section from being separated from the first through hole, and the gasket is sleeved at the end of the first extending section and located between the locating pin and the supporting plate.
Further, the first extension section is convexly provided with a positioning ring positioned above the supporting plate, the size of the positioning ring is larger than that of the first through hole and cannot pass through the first through hole, and the positioning ring is used for supporting the first end of the positioning rod in a matched mode and limiting the vertical position of the first end.
Furthermore, the inverted whisker blocks can be a plurality of inverted whisker blocks which are arranged at intervals along the length direction of the positioning rod main body, and the interval between two adjacent inverted whisker blocks can also be used as a locking groove for locking the vertical part of the clamping plate so as to adapt to different door plate opening angles; the shape, structure and size of each inverted whisker block can be set to be the same, and the vertical maximum size of each inverted whisker block can be gradually increased along the direction close to the tail end of the positioning rod.
Preferably, the opening angle of the revolving door plank is equal to 45-180 degrees.
The invention has at least the following beneficial effects:
the invention provides a self-positioning device for opening a rotary opening door of a vehicle body of a loading platform of a rotary drilling rig, which can rotate along with the rotary opening door in the process of opening the rotary opening door by using a positioning rod of a U-shaped structure with elbows at the head end and the tail end, wherein one or more inverted whisker blocks are arranged on the positioning rod, and when a door plate rotates to a maximum angle or a required angle, the inverted whisker blocks can lock the door plate, so that the door plate is prevented from unnecessarily rotating automatically, and the construction safety of workers is ensured. The self-positioning device is convenient to unlock, the locking can be released only by lifting the positioning rod a little, and the operation is very convenient. The door lock can complete locking and unlocking of the door plate through reasonable arrangement of the structure and the position relation of the three main components of the positioning rod, the bracket and the L-shaped clamping plate, has fewer components and simple structure, does not need to use a consumable part, has long service life, is convenient to install, has less installation and maintenance cost and low cost, and is very practical.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a front view of the upper deck body of the rotary drilling rig according to the preferred embodiment of the present invention (door panel closed);
FIG. 2 is a view A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is an inward elevation view of a swing door opening self-positioning device for a swing-on platform body of a swing-on rig of a preferred embodiment of the present invention with a door panel closed;
FIG. 4 is a top view of the swing door opening self-positioning device of the swing drilling rig loading platform body according to the preferred embodiment of the present invention when the door panels are closed and opened to 90 degrees, respectively;
FIG. 5 is an outward elevation view of the swing door opening self-positioning device of the swing-on rig upper deck body of the preferred embodiment of the present invention when the door panel is opened to 90;
FIG. 6 is an enlarged partial view of the invention at I in FIG. 3;
FIG. 7 is an enlarged partial view of the invention at II in FIG. 4;
FIG. 8 is an enlarged partial view at III in FIG. 5 according to the present invention;
Fig. 9 is a block diagram of a positioning rod of a rotary opening self-positioning device for a car body rotary opening door of a loading platform of a rotary drilling rig according to a preferred embodiment of the invention.
In the figure: the novel door lock comprises a 1-positioning rod, a 10-positioning rod main body, a 11-first end head, a 110-first elbow, a 111-first extension section, a 112-pin hole, a 113-gasket, a 114-cotter pin, a 115-positioning ring, a 12-second end head, a 120-second elbow, a 121-second extension section, a 2-inverted whisker block, a 3-bracket, a 31-bracket body, a 32-bracket, a 321-through hole I, a 33-bolt II, a 4-clamping plate, a 41-connecting part, a 42-vertical part, a 43-through hole II, a 44-bolt I, a 5-swing door, a 51-door bracket, a 52-door plate, a 53-connecting hinge, a 6-locking groove, a 7-key lock catch and an 8-cabinet body.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Referring to fig. 1-9, a self-positioning device for opening a rotary door of a loading platform body of a rotary drilling rig comprises a positioning rod 1, a inverted whisker block 2, a bracket 3 and an L-shaped clamping plate 4, wherein the bracket is arranged on a door bracket 51 of the rotary door 5 of a loading platform body cabinet, and the clamping plate is arranged on a door plate 52 of the rotary door of the loading platform body cabinet;
The bracket comprises a bracket body 31 and a supporting plate 32 arranged on the bracket body, the plate surface of the supporting plate is parallel to the rotation plane of the door plate, and the supporting plate is provided with a first through hole 321;
the L-shaped clamping plate comprises a connecting part 41 connected with the door plate and a vertical part 42 perpendicular to the door plate, the plate surface of the vertical part is arranged along the vertical direction, and a through hole II 43 is arranged on the vertical part; in this embodiment, the clamping plate is fixed to the door panel by two bolts 44.
The positioning rod comprises a positioning rod main body 10 which is horizontally arranged in the middle, and a first end head 11 and a second end head 12 which are respectively arranged at the head end and the tail end of the positioning rod main body, wherein the positioning rod main body horizontally penetrates through a second through hole 43 of the vertical part;
the first end head comprises an L-shaped first elbow 110 and a first extension section 111 which is continuously arranged along the vertical direction of the first elbow, the first extension section vertically penetrates through a first through hole of the supporting plate, the positioning rod can rotate around the first through hole, and the tail end of the first extension section is provided with a limiting component for preventing the first extension section from falling out of the first through hole;
When the door plate of the rotary door is opened to pull the door plate to rotate around the connecting hinge 53 on the door bracket, the clamping plate toggles the positioning rod to rotate along with the door plate through the through hole II, and the positioning rod can rotate around the through hole I;
The second end head comprises an L-shaped second elbow 120 and a second extension section 121 which is formed by continuing the second elbow along the vertical direction, the vertical length of the second extension section is larger than the vertical dimension of the second through hole, and the second extension section is used for preventing the tail end of the second extension section from falling out of the second through hole when the positioning rod rotates to the maximum angle along with the opening of the door plate;
The inverted whisker block 2 is arranged at the position, close to the second end, of the positioning rod main body in a protruding mode along the vertical downward direction, the inverted whisker block is arranged to be of a wedge-shaped structure, the vertical size of the inverted whisker block is gradually increased along the direction, close to the tail end of the positioning rod, of the inverted whisker block, a starting position, farthest away from the tail end of the positioning rod, of the inverted whisker block is in smooth transition with the positioning rod main body, so that the inverted whisker block can smoothly enter the through hole II, and the vertical size of the through hole II is larger than the sum of the vertical sizes of the inverted whisker block and the positioning rod main body at the vertical maximum size position of the inverted whisker block, so that the inverted whisker block can pass through the through hole II;
The horizontal distance is kept between the inverted whisker block and the second extension section, the horizontal distance is used as a locking groove 6 for locking the vertical part of the clamping plate, and the length of the positioning rod and the position of the inverted whisker block are set to satisfy the following conditions: when the door plate is rotated to be opened to a certain angle, the vertical part of the clamping plate arranged on the door plate is just blocked in the locking groove, so that the self-positioning and locking of the door plate are realized;
The setting position of the limiting component at the tail end of the first extension section is reserved with an adjusting distance for enabling the first extension section to move upwards in the first through hole, so that the positioning rod can be lifted upwards, after the positioning rod is lifted, the inverted whisker block can be retracted into the second through hole along with the rotation closing of the door plate, and therefore the locking of the door plate is relieved, and the door plate can be smoothly rotated and closed.
Referring to fig. 2 and 7, in the present embodiment, an upper connecting hinge 53 and a lower connecting hinge 53 are disposed between the door panel and the door bracket, and the frame body of the bracket is fixed on the lower connecting hinge by a second bolt 33, which is also a connecting bolt between the connecting hinge and the door bracket.
Referring to fig. 9, the end of the first extension section at the head end of the positioning rod is provided with a pin hole 112, referring to fig. 8, the limiting component at the end of the first extension section comprises a spacer 113 and a cotter pin 114, the spacer 113 is positioned below the through hole, the cotter pin is arranged in the pin hole in a penetrating manner to prevent the first extension section from being separated from the first through hole, and the spacer is sleeved at the end of the first extension section and is positioned between the positioning pin and the supporting plate.
The first extension section is provided with a positioning ring 115 positioned above the supporting plate in a welding way, the radial size of the outer ring of the positioning ring is larger than the size of the first through hole and cannot pass through the first through hole, and the positioning ring is used for supporting the first end of the positioning rod in a matching way and limiting the vertical position of the first end.
The working process and principle of the rotary opening self-positioning device for the car body of the loading platform of the rotary drilling rig are approximately as follows:
When the door is opened, the key lock 7 on the door plate is opened, the door plate is pulled to enable the door plate to be opened by reversely rotating around the connecting hinge 53 (reversely rotating is defined as rotating in a direction away from the cabinet body 8), the positioning rod is reversely rotated by taking the first through hole as the center, in the rotating process, the vertical part of the clamping plate gradually slides to be close to the inverted whisker block along the main body of the positioning rod under the limit of the second through hole, when the door plate is opened to a certain required angle (90 degrees in the embodiment), the inverted whisker block completely passes through the second through hole, the tail end swings downwards under the action of the gravity of the positioning rod, and the two hole walls of the positioning rod support the position of the positioning rod between the second extending section and the inverted whisker block until the positioning rod is positioned at the second extending section, at the moment, if the door plate is unnecessarily reversely rotated, the vertical part of the clamping plate is blocked by the second extending section, and if the door plate is unnecessarily rotated in the forward direction, the vertical part of the clamping plate is blocked by the inverted whisker block, so that the locking of the door plate is realized.
When the door is closed, the door can be closed smoothly only by lifting the positioning rod upwards to enable the inverted whisker block to reenter the second through hole, and the door is very convenient and practical.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The self-positioning device for the rotary opening of the car body of the upper car platform of the rotary drilling rig is characterized by comprising a positioning rod (1), a reversed whisker block (2), a bracket (3) and an L-shaped clamping plate (4), wherein the bracket is arranged on a door bracket (51) of a rotary opening door (5) of a car body cabinet of the upper car platform, and the clamping plate is arranged on a door plate (52) of the rotary opening door of the car body cabinet of the upper car platform;
the bracket comprises a bracket body (31) and a supporting plate (32) arranged on the bracket body, the plate surface of the supporting plate is parallel to the rotation plane of the door plate, and the supporting plate is provided with a first through hole (321);
The L-shaped clamping plate comprises a connecting part (41) connected with the door plate and a vertical part (42) perpendicular to the door plate, the plate surface of the vertical part is arranged along the vertical direction, and a through hole II (43) is formed in the vertical part;
The positioning rod comprises a positioning rod main body (10) which is horizontally arranged in the middle, and a first end head (11) and a second end head (12) which are respectively arranged at the head end and the tail end of the positioning rod main body, wherein the positioning rod main body horizontally penetrates through a second through hole (43) of the vertical part;
The first end head comprises an L-shaped first elbow (110) and a first extension section (111) which is continuously arranged along the vertical direction, the first extension section vertically penetrates through a first through hole of the supporting plate, the positioning rod can rotate around the first through hole, and the tail end of the first extension section is provided with a limiting part for preventing the first extension section from falling out of the first through hole;
When the door plate of the swing door is opened to pull the door plate to rotate around a connecting hinge (53) on the door bracket, the clamping plate drives the positioning rod to rotate along with the door plate through the through hole II, and the positioning rod can rotate around the through hole I;
The second end head comprises an L-shaped second elbow (120) and a second extension section (121) which is formed by continuing the second elbow along the vertical direction, the vertical length of the second extension section is larger than the vertical dimension of the second through hole, and the second extension section is used for preventing the tail end of the second extension section from falling out of the second through hole when the positioning rod rotates to the maximum angle along with the opening of the door plate;
The inverted whisker block (2) is arranged at the position, close to the second end, of the positioning rod main body in a protruding mode along the vertical downward direction, the inverted whisker block is arranged into a wedge-shaped structure, the vertical size of the inverted whisker block is gradually increased along the direction, close to the second end of the positioning rod, of the inverted whisker block, a starting position, farthest from the second end of the positioning rod, of the inverted whisker block is in smooth transition with the positioning rod main body, so that the inverted whisker block can smoothly enter the second through hole, and the vertical size of the second through hole is larger than the sum of the vertical sizes of the inverted whisker block and the positioning rod main body at the position of the vertical maximum size of the inverted whisker block, so that the inverted whisker block can pass through the second through hole;
the horizontal distance is kept between the inverted whisker block and the second extension section, the horizontal distance is used as a locking groove (6) for locking the vertical part of the clamping plate, and the length of the positioning rod and the position of the inverted whisker block are set to satisfy the following conditions: when the door plate is rotated to be opened to a certain angle, the vertical part of the clamping plate arranged on the door plate is just clamped in the locking groove, so that the door plate is self-positioned and locked at the current opening angle;
The setting position of the limiting component at the tail end of the first extension section is reserved with an adjusting distance for enabling the first extension section to move upwards in the first through hole, so that the positioning rod can be lifted upwards, after the positioning rod is lifted, the inverted whisker block can be retracted into the second through hole along with the rotation closing of the door plate, and therefore the locking of the door plate is relieved, and the door plate can be smoothly rotated and closed.
2. The self-positioning device for opening the swing door of the upper platform body of the rotary drilling rig according to claim 1, wherein the bracket is arranged on any connecting hinge between the door plate and the door bracket.
3. The self-positioning device for opening the swing door of the upper platform body of the rotary drilling rig according to claim 2, wherein the connecting hinge is a connecting hinge positioned at a lower position.
4. The rotary drilling rig loading platform body rotary door opening self-positioning device according to claim 1, wherein a pin hole (112) is formed in the tail end of the first extension section, the limiting component at the tail end of the first extension section comprises a gasket (113) and an opening pin (114), the opening pin is arranged in the pin hole in a penetrating mode to prevent the first extension section from being separated from the first through hole, and the gasket is sleeved at the tail end of the first extension section and is located between the positioning pin and the supporting plate.
5. The self-positioning device for opening the swing door of the loading platform body of the rotary drilling rig according to claim 1, wherein the first extension section is provided with a positioning ring (115) above the supporting plate in a protruding mode, the positioning ring is larger than the first through hole in size and cannot pass through the first through hole, and the positioning ring is used for supporting the first end of the positioning rod in a matched mode and limiting the vertical position of the first end.
6. The self-positioning device for opening the swing door of the upper platform body of the rotary drilling rig according to claim 1, wherein the opening angle of the door plate of the rotary door is equal to 45-180 degrees.
7. The device for automatically positioning the opening of the swing door of the upper platform body of the rotary drilling rig according to any one of claims 1 to 6, wherein the inverted whisker blocks are a plurality of inverted whisker blocks which are arranged at intervals along the length direction of the main body of the positioning rod, and the interval between two adjacent inverted whisker blocks is also used as a locking groove for locking the vertical part of the clamping plate so as to adapt to different door plate opening angles; the shape, structure and size of each inverted whisker block can be set to be the same, or the vertical maximum size of each inverted whisker block is gradually increased along the direction close to the tail end of the locating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387278.8A CN110939337B (en) | 2019-12-26 | 2019-12-26 | Self-positioning device for opening rotary door of loading platform body of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387278.8A CN110939337B (en) | 2019-12-26 | 2019-12-26 | Self-positioning device for opening rotary door of loading platform body of rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110939337A CN110939337A (en) | 2020-03-31 |
| CN110939337B true CN110939337B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911387278.8A Active CN110939337B (en) | 2019-12-26 | 2019-12-26 | Self-positioning device for opening rotary door of loading platform body of rotary drilling rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN110939337B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4496006A (en) * | 1983-05-04 | 1985-01-29 | Smith Albert W | Cylinder displaceable power swivel for a portable drilling apparatus _and a process therefor |
| CN1281929A (en) * | 1999-07-22 | 2001-01-31 | 思嘎茨讷工业株式会社 | Door locator |
| CN205172232U (en) * | 2015-10-14 | 2016-04-20 | 深圳职业技术学院 | Adjustable door closer of aperture and stop device thereof |
| CN211342280U (en) * | 2019-12-26 | 2020-08-25 | 恒天九五重工有限公司 | Self-positioning device for opening door of upper vehicle platform body of rotary drilling rig by screwing |
-
2019
- 2019-12-26 CN CN201911387278.8A patent/CN110939337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4496006A (en) * | 1983-05-04 | 1985-01-29 | Smith Albert W | Cylinder displaceable power swivel for a portable drilling apparatus _and a process therefor |
| CN1281929A (en) * | 1999-07-22 | 2001-01-31 | 思嘎茨讷工业株式会社 | Door locator |
| CN205172232U (en) * | 2015-10-14 | 2016-04-20 | 深圳职业技术学院 | Adjustable door closer of aperture and stop device thereof |
| CN211342280U (en) * | 2019-12-26 | 2020-08-25 | 恒天九五重工有限公司 | Self-positioning device for opening door of upper vehicle platform body of rotary drilling rig by screwing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110939337A (en) | 2020-03-31 |
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