CN115653393B - Guardrail special for oil well - Google Patents
Guardrail special for oil well Download PDFInfo
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- CN115653393B CN115653393B CN202211386380.8A CN202211386380A CN115653393B CN 115653393 B CN115653393 B CN 115653393B CN 202211386380 A CN202211386380 A CN 202211386380A CN 115653393 B CN115653393 B CN 115653393B
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Abstract
The invention relates to a guardrail special for an oil well, in particular to a guardrail special for an oil well. It comprises a supporting device and a plurality of connectors. According to the invention, the automatic correction function of the position of the plug connector is realized through the connecting shaft, even if the heights of the two brackets are different, the height difference of the two brackets is not needed to be eliminated manually by an operator, the workload of the operator is reduced, and the angle of the plug connector is automatically corrected only through the rotating connection of the angle correction plate and the clamping plate, so that the angle correction plate and the length correction plate are always parallel to the brackets, meanwhile, the length correction plate and the inner plate keep sliding, and even if the length correction plate cannot be attached to the ground, the length correction plate is driven to vertically move down along the inner plate under the action of the gravity of the length correction plate, and is attached to the ground automatically, thereby being suitable for oil well protection of different terrains and improving the use flexibility of the whole device.
Description
Technical Field
The invention relates to a guardrail special for an oil well, in particular to a guardrail special for an oil well.
Background
The oil well is a hole drilled by a well distribution system planned by oil field development, and the oil rises from the bottom of the well to the passage of the wellhead. Because the oil well wellhead is in the exposure state, in order to prevent irrelevant personnel from approaching the oil well, the special guardrail of oil well can be preset generally around the current oil field to be used for protecting the oil field, and current special guardrail of oil well is in the installation process, because the topography is uneven around the oil field, in order to guarantee that special guardrail of oil well is stable, needs the manual work of operating personnel to restore the topography around the oil well for special guardrail of oil well is in on the same horizontal plane, and this kind of mode in-process is comparatively loaded down with trivial details, and needs to expend a large amount of efforts of operating personnel.
Disclosure of Invention
The invention aims to provide a guardrail special for an oil well, which aims to solve the problems in the background technology.
In order to achieve the above purpose, a special guardrail for oil well is provided, which comprises a supporting device, the supporting device comprises a pair of brackets, the brackets comprise a base, the top end of the base is provided with a support column, an upper connecting plate is connected between the positions of the two support columns close to the top end, a plurality of top grooves are arranged on the top end of the upper connecting plate, a lower connecting plate is connected between the positions of the two support columns close to the bottom end, a plurality of bottom grooves are arranged on the top end of the lower connecting plate, the bottom grooves are respectively aligned with the top grooves, a plug connector is inserted between the bottom grooves and the top grooves, a connecting groove is arranged on the side surface of the support column, connecting shafts are respectively connected at the upper end and the lower end of the inner side of the connecting groove in a rotating way, first connecting connectors are respectively arranged on the two sides of the upper connecting plate, and the first connecting connectors are in telescopic fit with the side surface of the upper connecting plate, the two first connectors are respectively connected with the two connecting shafts close to the top ends of the support posts in a rotating way, the two sides of the lower connecting plate are respectively provided with a second connector, the second connectors are in telescopic fit with the lower connecting plate, the two second connectors are respectively connected with the two connecting shafts close to the bottom ends of the support posts in a rotating way, the inner side of the top groove is provided with a limiting shaft, the plug connector comprises an angle correcting plate, the side surface of the angle correcting plate is provided with a connecting port which is in rotary connection with the limiting shaft, the bottom end of the angle correcting plate is provided with a length correcting plate, the side surface of the length correcting plate is provided with a handle, the length correcting plate is in plug-in fit with the bottom groove, an inner plate is connected between the length correcting plate and the angle correcting plate, the top end of the inner plate is fixed at the inner end of the angle correcting plate, the bottom end of the inner plate is in sliding connection with the inner end of the length correcting plate.
As a further improvement of the technical scheme, the side face of the base is provided with a side groove which is of a trapezoid structure, and the cross section size of the top end of the side groove is smaller than that of the bottom end.
As a further improvement of the technical scheme, a plurality of grooves are formed in the bottom of the inner side of the side groove, and the grooves are uniformly distributed in the bottom of the inner side of the side groove.
As a further improvement of the technical scheme, side plates are arranged on two sides of the bottom end of the base, the side plates are of wedge-shaped structures, and the top ends of the side plates are kept flush with the edge positions of the side grooves.
As a further improvement of the technical scheme, a plurality of inserting columns are arranged at the bottom ends of the side plates, the inserting columns are of conical structures, and the cross-sectional size of the bottom ends of the inserting columns is smaller than that of the top ends.
As a further improvement of the technical scheme, clamping plates are arranged on two sides of the inner end of the second connector, a gap is reserved between the two clamping plates, and the gap width is consistent with the thickness of the length correction plate.
As a further improvement of the technical scheme, a plurality of balls are arranged on the adjacent side surfaces of the clamping plates and the length correcting plates, and the balls are in rolling connection with the side surfaces of the length correcting plates.
As a further improvement of the technical scheme, limiting blocks are arranged on two sides of the bottom end of the inner plate, limiting grooves are formed in two sides of the length correcting plate, and the limiting grooves are in sliding connection with the limiting blocks.
As a further improvement of the technical scheme, the top end of the limiting block is provided with a pair of side blocks, one side block is fixedly connected with the limiting block, the other side block is in sliding connection with the side surface of the inner plate, and a buffer spring is connected between the two side blocks.
Compared with the prior art, the invention has the beneficial effects that:
1. in this special guardrail of oil well, realize the automatic function of correcting of plug connector position through the connecting axle that sets up, even two support are located highly different, also need not to eliminate two support difference in height through operating personnel is manual, reduce operating personnel work load, only need rotate through angle correction board and splint and be connected, automatic correction plug connector angle, make angle correction board and length correction board remain parallel with the support all the time, length correction board keeps sliding with the inner panel simultaneously, even length correction board can't laminate with ground, also only need to drive length correction board through length correction board self gravity action and move down along the inner panel vertically, automatic laminate with ground, thereby can adapt to the oil well protection of different topography, improve the use flexibility ratio of whole device.
2. In this special guardrail of oil well, be arranged in to the side tank that sets up and be used for carrying out drainage to the air and handle for air is through the support speed, reduces the area of contact of air and support simultaneously, reduces the pressure that the air caused to the support side, and can carry a large amount of sand grain in the air, will have partial sand grain to pile up at the side tank inner after the side tank inner for the gravity in side tank increases, further improves the supporting stability of whole support.
3. In this special guardrail of oil well, reduce the area of contact between length correcting plate side and the splint side through the ball that sets up to reduce the frictional resistance between the two, improve length correcting plate and remove efficiency.
4. In this special guardrail of oil well, limit the board sliding position is corrected to length through spacing groove and stopper that sets up, and in-process is moved down vertically to length correction board, two stoppers slide along two spacing grooves respectively, and spacing groove both ends all are in sealed state, and when stopper and spacing groove terminal subsides, length correction board receives the stopper separation this moment, can't continue to remove to avoid length correction board slip excessively and the inner panel takes place to break away from.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a supporting device according to the present invention;
FIG. 3 is a schematic view of a bracket structure according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
FIG. 5 is a schematic view of the upper web structure of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5B in accordance with the present invention;
FIG. 7 is a schematic view of the lower web structure of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C in accordance with the present invention;
FIG. 9 is a split view of a plug structure according to the present invention;
fig. 10 is a partial enlarged view of fig. 9D in accordance with the present invention.
The meaning of each reference sign in the figure is:
10. a support device; 110. a bracket; 111. a base; 1111. a side groove; 1112. a groove; 112. a support post; 1121. a connecting groove; 113. a connecting shaft; 114. a side plate; 1141. inserting a column; 120. an upper connecting plate; 121. a first connector; 122. a top groove; 123. a limiting shaft; 130. a lower connecting plate; 131. a second connector; 132. a bottom groove; 133. a clamping plate; 134. a ball;
20. a plug-in component; 210. an angle correcting plate; 211. a connection port; 220. a length correction plate; 221. a limit groove; 222. a handle; 230. an inner plate; 231. a limiting block; 232. a side block; 233. and a buffer spring.
Detailed Description
Referring to fig. 1-10, there is provided a guardrail special for oil well, comprising a supporting device 10, the supporting device 10 comprises a pair of brackets 110, the brackets 110 comprise a base 111, the top end of the base 111 is provided with a pillar 112, an upper connecting plate 120 is connected between the positions of the two pillars 112 close to the top end, a plurality of top grooves 122 are arranged on the top end of the upper connecting plate 120, a lower connecting plate 130 is connected between the positions of the two pillars 112 close to the bottom end, a plurality of bottom grooves 132 are arranged on the top end of the lower connecting plate 130, each bottom groove 132 is aligned with each top groove 122, a plug connector 20 is inserted between the bottom groove 132 and the top groove 122, a connecting groove 1121 is arranged on the side surface of the pillar 112, connecting shafts 113 are rotatably connected to the upper and lower ends of the inner side of the connecting groove 1121, first connecting connectors 121 are arranged on both sides of the upper connecting plate 120, the first connecting connectors 121 are in telescopic fit with the side surface of the upper connecting plate 120, the two first connectors 121 are respectively connected with the two connecting shafts 113 close to the top ends of the support posts 112 in a rotating way, the two sides of the lower connecting plate 130 are respectively provided with a second connector 131, the second connectors 131 are in telescopic fit with the lower connecting plate 130, the two second connectors 131 are respectively connected with the two connecting shafts 113 close to the bottom ends of the support posts 112 in a rotating way, the inner side of the top groove 122 is provided with a limiting shaft 123, the plug connector 20 comprises an angle correcting plate 210, the side surface of the angle correcting plate 210 is provided with a connecting port 211 which is kept in rotating connection with the limiting shaft 123, the bottom end of the angle correcting plate 210 is provided with a length correcting plate 220, the side surface of the length correcting plate 220 is provided with a handle 222, the length correcting plate 220 is in plug connection with the bottom groove 132, an inner plate 230 is connected between the length correcting plate 220 and the angle correcting plate 210, the top end of the inner plate 230 is fixed at the inner end of the angle correcting plate 210, and the bottom end of the inner plate 230 is in sliding connection with the inner end of the length correcting plate 220.
The specific installation process comprises the following steps: firstly, two brackets 110 are respectively placed at two peripheral ends of an oil field, first connectors 121 at two ends of an upper connecting plate 120 are respectively clamped into inner ends of two connecting grooves 1121, the upper connecting plate 120 is slid along a vertical direction, so that the upper connecting plate 120 moves to the top position of the inner ends of the connecting grooves 1121, at the moment, a connecting shaft 113 is inserted into the inner ends of the corresponding second connectors 131 through the side surfaces of the supporting columns 112, the inner ends of the connecting grooves 1121 are inserted into the first connectors 121, second connectors 131 at two ends of a lower connecting plate 130 are respectively clamped into the inner ends of the connecting grooves 1121, the lower connecting plate 130 is slid along the vertical direction, so that the lower connecting plate 130 moves to the bottom position of the inner ends of the connecting grooves 1121, at the moment, the connecting shaft 113 is inserted into the side surfaces of the supporting columns 112 and is inserted into the second connectors 131 through the inner ends of the connecting grooves 1121, after the positions of the upper connecting plate 120 and the lower connecting plate 130 are fixed, each plug 20 is sequentially inserted into the corresponding inner ends of the second connectors 131 through the inner ends of the corresponding first connectors 121, at the moment, an angle correcting plate 210 is inserted into the inner ends of the top grooves 122, the limiting shaft 123 through the inner ends 211, the rotating the angle correcting plate 211 is kept to be connected with the length of the angle correcting plate 220, and the length of the second correcting plate 220 is kept in fit with the bottom end correcting plate 131.
When the two brackets 110 are positioned at different heights, the upper connecting plate 120 and the lower connecting plate 130 are hinged with the support column 112 through the connecting shaft 113, after the height difference is formed between the two brackets 110, the upper connecting plate 120 and the lower connecting plate 130 are shifted in position through the connecting shaft 113, each plug-in piece 20 is driven to move upwards or downwards through the upper connecting plate 120, the angle of the angle correcting plate 210 is shifted along with the movement process of the angle correcting plate 210, the angle correcting plate 210 is not parallel to the brackets 110, meanwhile, the angle correcting plate 210 is rotationally connected with the limiting shaft 123, after the angle of the angle correcting plate 210 is shifted, the angle of the angle correcting plate 210 is automatically corrected due to the gravity effect of the plug-in piece, the angle correcting plate 220 is kept parallel to the brackets 110 again, the bottom end of the length correcting plate 220 is separated from the ground due to the integral angle change, the length correction plate 220 is in sliding connection with the inner plate 230, after the bottom end of the length correction plate 220 is separated from the ground, the length correction plate 220 is subject to the action of self gravity and can slowly move downwards along the vertical direction to be attached to the ground again, in the invention, the automatic correction function of the position of the plug-in connector 20 is realized through the connecting shaft 113, even if the heights of the two brackets 110 are different, the height difference of the two brackets 110 is not needed to be eliminated manually by an operator, the workload of the operator is reduced, the angle of the plug-in connector 20 is automatically corrected only through the rotary connection of the angle correction plate 210 and the clamping plate 133, the angle of the angle correction plate 210 and the length correction plate 220 are always kept parallel to the brackets 110, meanwhile, the length correction plate 220 and the inner plate 230 are kept to slide, even if the length correction plate 220 cannot be attached to the ground, the length correction plate 220 is driven to vertically move downwards along the inner plate 230 only through the self gravity action of the length correction plate 220, automatic laminating with ground to can adapt to the oil well protection of different topography, improve the use flexibility of whole device.
Because the oil field is located in most desert areas or open areas, the air flow amplitude is large, after the oil field is in contact with the side surface of the support 110, the contact surface can be affected by wind force, the support 110 is easy to support and cannot collapse, in addition, the side surface of the base 111 is provided with the side groove 1111, the side groove 1111 is of a trapezoid structure, the top end section size of the side groove 1111 is smaller than the bottom end section size, the side groove 1111 is used for conducting drainage treatment on air, the speed of the air passing through the support 110 is accelerated, the contact area of the air and the support 110 is reduced, the pressure of the air on the side surface of the support 110 is reduced, a large amount of sand particles can be carried in the air, and partial sand particles are accumulated at the inner end of the side groove 1111 after passing through the inner end of the side groove 1111, so that the gravity of the side groove 1111 is increased, and the support stability of the whole support 110 is further improved.
Further, a plurality of grooves 1112 are formed at the bottom of the inner side of the side groove 1111, and each groove 1112 is uniformly distributed at the bottom of the inner side of the side groove 1111. In specific use, the size of the space inside the side groove 1111 is increased through the groove 1112, so that sand in the air passes through the inner end of the side groove 1111 and is stored through the groove 1112, the collection effect of the inner end of the side groove 1111 on the sand is further improved, and the gravity of the bracket 110 is increased.
Because there is certain difference in height still with ground in side tank 1111 border position, sand grain self has gravity in the air, the sand grain along with the air flow in-process, most sand grain all can gather in the air bottom, and this part air is most blocked by base 111 border position, can't blow in the side tank 1111 inner smoothly, still further, base 111 bottom both sides all are provided with curb plate 114, curb plate 114 is wedge structure, curb plate 114 top and side tank 1111 border position keep the parallel and level, connect ground and side tank 1111 border position through the curb plate 114 that sets up, will carry the air of a large amount of sand grain and introduce side tank 1111 inner smoothly, further improve side tank 1111 and collect sand grain effect.
Specifically, the bottom end of the side plate 114 is provided with a plurality of studs 1141, the studs 1141 are in a tapered structure, and the cross-sectional dimension of the bottom end of the studs 1141 is smaller than that of the top end. The stability of the attachment of the side plate 114 to the ground is improved through the arranged inserting posts 1141, when the bottom end of the side plate 114 is attached to the ground, each inserting post 1141 is inserted into the ground to form insertion connection with the ground, when air applies pressure to the side surface of the side plate 114, the component force of the friction force generated at the insertion connection position of the inserting posts 1141 and the ground counteracts the pressure applied to the inserting posts, so that the stability between the side plate 114 and the ground is maintained, the stability of the bracket 110 is further improved, and the whole device is ensured to be in a balanced state.
Because the width of the inner end of the second connector 131 is greater than the thickness of the length correction plate 220, the length correction plate 220 can not only be subjected to the action of self gravity, but also be subjected to the thrust generated by air in the moving process of the inner end of the second connector 131, and the thrust direction is consistent with the air flow direction, when the air flow direction is inconsistent with the rotation direction of the limiting shaft 123, the thrust exerted by the air on the length correction plate 220 easily causes deflection of the length correction plate 220, the service life of the length correction plate 220 can be influenced for a long time, in addition, the clamping plates 133 are arranged on two sides of the inner end of the second connector 131, a gap is reserved between the two clamping plates 133, the gap width is consistent with the thickness of the length correction plate 220, the position of the length correction plate 220 is limited by the arranged clamping plates 133, so that the moving direction of the length correction plate 220 is consistent with the rotation direction of the limiting shaft 123 all the time, and even if the thrust caused by the air is inconsistent with the rotation direction of the limiting shaft 123, the length correction plate 220 cannot cause deflection of the length correction plate 220, and the service life of the length correction plate 220 is prolonged.
Because the length correcting plate 220 slides along the gap generated between the two clamping plates 133, two sides of the length correcting plate 220 are respectively contacted with the two clamping plates 133, friction resistance is formed on the contact surface between the two clamping plates, the friction resistance is opposite to the movement direction of the length correcting plate 220, normal movement of the length correcting plate 220 is hindered, the position adjusting efficiency of the length correcting plate 220 is greatly reduced, further, a plurality of balls 134 are arranged on the adjacent side surfaces of the clamping plates 133 and the length correcting plate 220, the balls 134 are in rolling connection with the side surfaces of the length correcting plate 220, the contact area between the side surfaces of the length correcting plate 220 and the side surfaces of the clamping plates 133 is reduced through the arranged balls 134, so that the friction resistance between the two friction resistance is reduced, and the movement efficiency of the length correcting plate 220 is improved.
Still further, both sides of the bottom end of the inner plate 230 are provided with limiting blocks 231, both sides of the length correcting plate 220 are provided with limiting grooves 221, and the limiting grooves 221 are slidably connected with the limiting blocks 231. When the length correction plate 220 sliding position is limited through the limiting grooves 221 and the limiting blocks 231, when the length correction plate 220 moves down vertically, the two limiting blocks 231 slide along the two limiting grooves 221 respectively, the two tail ends of the limiting grooves 221 are in a sealing state, when the limiting blocks 231 are attached to the tail ends of the limiting grooves 221, the length correction plate 220 is blocked by the limiting blocks 231 and cannot move continuously, and therefore the situation that the length correction plate 220 slides excessively and is separated from the inner plate 230 is avoided.
In addition, a pair of side blocks 232 are arranged at the top end of the limiting block 231, one side block 232 is fixedly connected with the limiting block 231, the other side block 232 is in sliding connection with the side face of the inner plate 230, and a buffer spring 233 is connected between the two side blocks 232. When the length correction plate 220 moves down vertically, the tail end of the limit groove 221 is easy to collide with the limit block 231, abrasion can be caused to the tail end of the limit groove 221 for a long time, the service life of the length correction plate 220 is affected, at this time, the length correction plate 220 is protected through the side blocks 232, when the edge position of the limit groove 221 is about to be contacted with the limit block 231, the edge position of the limit groove 221 is in contact with the side blocks 232 in advance, the side blocks 232 are extruded to enable the side blocks 232 to slide, the buffer springs 233 are pressed in the sliding process of the side blocks 232, the buffer springs 233 are in a compressed state, when the buffer springs 233 are compressed to the maximum state, the side blocks 232 cannot move continuously, a moving buffer effect is achieved through the buffer springs 233, and the service life of the length correction plate 220 is prolonged.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a special guardrail of oil well, includes strutting arrangement (10), strutting arrangement (10) include a pair of support (110), support (110) include base (111), base (111) top is provided with pillar (112), two be connected with upper portion connecting plate (120) between pillar (112) near the top position, a plurality of roof grooves (122) have been seted up on upper portion connecting plate (120) top, two be connected with lower part connecting plate (130) between pillar (112) near the bottom position, a plurality of undercut (132) have been seted up on lower part connecting plate (130) top, each undercut (132) are aligned respectively with each roof groove (122), undercut (132) with peg graft between roof groove (122) has plug connector (20), its characterized in that: the side of the support column (112) is provided with a connecting groove (1121), the upper end and the lower end of the inner side of the connecting groove (1121) are respectively and rotatably connected with a connecting shaft (113), the two sides of the upper connecting plate (120) are respectively provided with a first connecting head (121), the first connecting heads (121) are in telescopic fit with the side of the upper connecting plate (120), the two first connecting heads (121) are respectively and rotatably connected with the two connecting shafts (113) close to the top end of the support column (112), the two sides of the lower connecting plate (130) are respectively and rotatably connected with a second connecting head (131), the second connecting heads (131) are in telescopic fit with the lower connecting plate (130), the two second connectors (131) are respectively connected with the two connecting shafts (113) close to the bottom ends of the support columns (112) in a rotating way, a limiting shaft (123) is arranged on the inner side of the top groove (122), the plug connector (20) comprises an angle correcting plate (210), a connecting port (211) which is rotationally connected with the limiting shaft (123) is formed in the side face of the angle correcting plate (210), a length correcting plate (220) is arranged at the bottom end of the angle correcting plate (210), a handle (222) is arranged on the side face of the length correcting plate (220), the length correcting plate (220) is in plug connection with the bottom groove (132), an inner plate (230) is connected between the length correcting plate (220) and the angle correcting plate (210), the top end of the inner plate (230) is fixed at the inner end of the angle correcting plate (210), and the bottom end of the inner plate (230) is in sliding connection with the inner end of the length correcting plate (220);
the two sides of the inner end of the second connector (131) are respectively provided with a clamping plate (133), gaps are reserved between the two clamping plates (133), the gap width is consistent with the thickness of the length correction plate (220), a plurality of balls (134) are arranged on the adjacent side surfaces of the clamping plates (133) and the length correction plate (220), the balls (134) and the side surfaces of the length correction plate (220) are in rolling connection, limiting blocks (231) are arranged on the two sides of the bottom end of the inner plate (230), limiting grooves (221) are formed in the two sides of the length correction plate (220), the limiting grooves (221) are in sliding connection with the limiting blocks (231), a pair of side blocks (232) are arranged on the top end of each limiting block (231), one side block (232) is fixedly connected with the limiting block (231), the other side block (232) is in sliding connection with the side surfaces of the inner plate (230), and a buffer spring (233) is connected between the two side blocks (232).
2. The oil well specific guardrail according to claim 1, characterized in that: side groove (1111) have been seted up to base (111) side, side groove (1111) are trapezoidal structure, side groove (1111) top cross-section size is less than bottom cross-section size.
3. The oil well specific guardrail according to claim 2, characterized in that: a plurality of grooves (1112) are formed in the bottom position of the inner side of the side groove (1111), and the grooves (1112) are uniformly distributed in the bottom position of the inner side of the side groove (1111).
4. A special guard rail for an oil well according to claim 3, wherein: side plates (114) are arranged on two sides of the bottom end of the base (111), the side plates (114) are of wedge-shaped structures, and the top ends of the side plates (114) are kept flush with the edge positions of the side grooves (1111).
5. The oil well specific guardrail according to claim 4, wherein: the bottom end of the side plate (114) is provided with a plurality of inserting columns (1141), the inserting columns (1141) are in conical structures, and the cross-sectional size of the bottom end of each inserting column (1141) is smaller than that of the top end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211386380.8A CN115653393B (en) | 2022-11-07 | 2022-11-07 | Guardrail special for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211386380.8A CN115653393B (en) | 2022-11-07 | 2022-11-07 | Guardrail special for oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115653393A CN115653393A (en) | 2023-01-31 |
| CN115653393B true CN115653393B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211386380.8A Active CN115653393B (en) | 2022-11-07 | 2022-11-07 | Guardrail special for oil well |
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| CN (1) | CN115653393B (en) |
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2022
- 2022-11-07 CN CN202211386380.8A patent/CN115653393B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125135A (en) * | 2004-11-01 | 2006-05-18 | Chiyoda Kizai Kk | Temporary installation apparatus for road sign |
| CN107313647A (en) * | 2017-07-25 | 2017-11-03 | 中冶建工集团有限公司 | A kind of assembly type fence |
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| CN115653393A (en) | 2023-01-31 |
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