CN116398192A - Hydraulic support for preventing foreign matter from blocking oil cylinder - Google Patents
Hydraulic support for preventing foreign matter from blocking oil cylinder Download PDFInfo
- Publication number
- CN116398192A CN116398192A CN202310478664.8A CN202310478664A CN116398192A CN 116398192 A CN116398192 A CN 116398192A CN 202310478664 A CN202310478664 A CN 202310478664A CN 116398192 A CN116398192 A CN 116398192A
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- Prior art keywords
- hydraulic
- fixedly connected
- inner cavity
- cylinder
- block
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- 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.)
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- 230000000903 blocking effect Effects 0.000 title claims description 11
- 230000000670 limiting effect Effects 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 13
- 230000002265 prevention Effects 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 abstract description 24
- 239000003921 oil Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 16
- 239000000428 dust Substances 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 239000011435 rock Substances 0.000 abstract description 8
- 230000009471 action Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
Abstract
The invention discloses a hydraulic support for preventing an oil cylinder from being blocked by foreign matters, which comprises a support main body and a hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected to an inner cavity of the support main body, two sides of the support main body are fixedly connected with protecting shells, and the front sides of the protecting shells are fixedly connected with oil inlet pipes. According to the hydraulic support, the filter element, the positioning component, the fixing component and the control component are matched for use, the control block is pushed, the control block drives the movable plate to move through the control column, the movable plate drives the limiting plate to slide in the inner cavity of the movable groove and squeeze the spring, and meanwhile, the limiting plate drives the fixed block to enter the inner cavity of the movable groove, so that the problem that in the use process of the existing hydraulic support, the rock in a cave and the hydraulic cylinder in dust enter the hydraulic cylinder in the advancing process and are mixed with hydraulic oil in the movement of the hydraulic oil, dust is accumulated after long-time use, the hydraulic oil becomes turbid, the cylinder is blocked, the hydraulic support is difficult to continue to use, and normal operation of the hydraulic support is impossible is solved.
Description
Technical Field
The invention belongs to the technical field of hydraulic supports, and particularly relates to a hydraulic support for preventing an oil cylinder from being blocked by foreign matters.
Background
The hydraulic support is a structure for controlling the mine pressure of the coal face, the mining face is acted on the hydraulic support in an external load mode, in a mechanical system of interaction of the hydraulic support and the mining face surrounding rock, if resultant force of all supporting parts of the hydraulic support and external load force of a top plate acting on the hydraulic support are exactly the same straight line, the hydraulic support is very suitable for the mining face surrounding rock, the existing hydraulic support enters the hydraulic cylinder in the process of advancing a rock and dust hydraulic cylinder in a cave in the use process, and is mixed with hydraulic oil in the movement of the hydraulic oil, dust is accumulated due to long-time use, so that the hydraulic oil becomes turbid, the oil cylinder is blocked, the hydraulic support is difficult to continue to use, the hydraulic support cannot normally operate, and the problems in the prior art are that: the current hydraulic support is in the in-process that uses, and the in-process that the pneumatic cylinder advanced in rock, the dust in the cave gets into in the pneumatic cylinder to mix with hydraulic oil in the motion of hydraulic oil, use for a long time and lead to dust to pile up, make hydraulic oil become turbid, lead to the hydro-cylinder to block up, be difficult to continue to use to the hydro-cylinder, lead to the unable normal operating of hydraulic support.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the hydraulic support for preventing the oil cylinder from being blocked by foreign matters, which has the advantage of blocking prevention, and solves the problems that the existing hydraulic support enters the hydraulic cylinder in the advancing process of the hydraulic cylinder in rocks and dust in a cave and is mixed with the hydraulic oil in the moving process of the hydraulic oil, dust is accumulated after long-time use, the hydraulic oil becomes turbid, the oil cylinder is blocked, the oil cylinder is difficult to continue to use, and the hydraulic support cannot normally operate.
The invention discloses a hydraulic support for an oil cylinder capable of preventing foreign matters from blocking, which comprises a support main body and a hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected to an inner cavity of the support main body, both sides of the support main body are fixedly connected with a protecting shell, the front side of the protecting shell is fixedly connected with an oil inlet pipe, the rear side of the top of the protecting shell is fixedly connected with an oil outlet pipe, the inner cavity of the protecting shell is provided with a filter element, the front side of the protecting shell is provided with a sealing cover, the front side of the inner cavity of the protecting shell is provided with a positioning component matched with the filter element, the front side of the sealing cover is fixedly connected with a positioning block, one side of the filter element, which is close to the positioning block, is provided with a positioning groove matched with the positioning block, the inner cavity of the positioning block is provided with a movable groove, and the inner cavity of the movable groove is provided with a fixing component matched with the filter element.
As the preferable mode of the invention, the positioning component comprises a positioning seat, a groove is formed in one side, close to the filter element, of the positioning seat, and a rubber ring matched with the filter element for use is arranged in an inner cavity of the groove.
As the preferable mode of the invention, the fixing component comprises a spring, two sides of the spring are respectively and fixedly connected with a limiting plate, one side of the limiting plate, which is far away from the spring, is fixedly connected with a fixing block, and one side of the fixing block, which is far away from the limiting plate, penetrates through the positioning block and extends to the outer side of the positioning block.
As the preferable mode of the invention, the control component comprises a movable plate, the top of the movable plate is rotatably connected with a control column through a rotating shaft, and the top of the control column penetrates through the positioning block and extends to the outer side of the positioning block, and is fixedly connected with a control block.
As the preferable mode of the invention, the sealing cover is fixedly connected with the protecting shell through bolts, the two sides of the inner cavity of the positioning block are provided with the fixed grooves matched with the fixed blocks, the two sides of the inner cavity of the movable groove are provided with the first through holes matched with the fixed blocks, the top of the inner cavity of the movable groove is provided with the second through holes matched with the control column, and one side of the oil outlet pipe far away from the protecting shell is fixedly connected with the hydraulic cylinder.
As the preferable mode of the invention, the front side of the positioning seat is fixedly connected with the inner wall of the protective shell, one side of the filter element, which is close to the inner wall of the groove, is contacted with the inner wall of the groove, the front side of the rubber ring is fixedly connected with the inner wall of the groove, and the rear side of the rubber ring is tightly attached to the filter element.
As the preferable mode of the invention, the middle end of the spring, which is close to one side of the inner wall of the movable groove, is fixedly connected with the inner wall of the movable groove, one side of the limiting plate, which is close to the inner wall of the movable groove, is contacted with the inner wall of the movable groove, and one side of the fixed block, which is close to the fixed groove, is inserted into the inner cavity of the fixed groove.
Preferably, one side of the movable plate far away from the control column is rotatably connected with the limiting plate through a rotating shaft, and one side of the control column near the inner wall of the second through hole is in contact with the inner wall of the second through hole.
1. According to the invention, the filter element, the positioning component, the fixing component and the control component are matched for use, the control block is pushed, the control block drives the movable plate to move through the control column, the movable plate drives the limiting plate to slide in the inner cavity of the movable groove and squeeze the spring, and meanwhile, the limiting plate drives the fixed block to enter the inner cavity of the movable groove, so that the problem that the conventional hydraulic support cannot normally operate due to the fact that the conventional hydraulic support enters the hydraulic cylinder in the advancing process of the rock and dust in the cave and is mixed with hydraulic oil in the moving process of the hydraulic oil, dust is accumulated due to long-time use, the hydraulic oil becomes turbid, the cylinder is blocked, and the hydraulic support is difficult to continue to use.
2. According to the invention, the positioning component is arranged, so that the filter element can be positioned, and hydraulic oil can be filtered from the filter element conveniently.
3. According to the invention, the filter element can be fixed by arranging the fixing component, so that the filter element is convenient to use, and the filter element is prevented from being difficult to be inserted into the groove after being placed into the protective shell.
4. The invention can use the fixed component by arranging the control component, and is convenient for a user to use the fixed component.
5. According to the invention, the sealing cover is arranged, so that the interior of the protective shell can be cleaned conveniently, and the first through hole and the second through hole are arranged, so that the limiting effect on the fixed block and the control column can be achieved respectively.
6. According to the invention, the positioning seat is arranged, so that the filter element can be positioned, and the rubber ring is arranged, so that the sealing effect can be realized, and unfiltered hydraulic oil is prevented from seeping out from the contact point.
7. According to the invention, the limiting plate can be reset by arranging the spring, the fixing block can be driven to move by arranging the limiting plate, and the filter element can be fixed by arranging the fixing block.
8. According to the invention, the movable plate can be driven to move by arranging the control column, and the limiting plate can be driven to move and the spring is extruded by arranging the movable plate.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a filter cartridge according to an embodiment of the present invention;
FIG. 3 is a partial enlarged view of FIG. 2 at A provided by an embodiment of the present invention;
FIG. 4 is a top view of a cartridge provided by an embodiment of the present invention;
FIG. 5 is a partial enlarged view of embodiment of the present invention providing the view at B in FIG. 4;
FIG. 6 is a schematic view of a positioning assembly according to an embodiment of the present invention;
fig. 7 is a schematic view of a structure of a fixing assembly and a control assembly according to an embodiment of the present invention.
In the figure: 1. a holder main body; 2. a hydraulic cylinder; 3. a protective shell; 4. an oil inlet pipe; 5. an oil outlet pipe; 6. a filter element; 7. a cover; 8. a positioning assembly; 9. a positioning block; 10. a positioning groove; 11. a movable groove; 12. a fixing assembly; 13. a fixing groove; 14. a first through hole; 15. a second through hole; 16. a control assembly; 801. a positioning seat; 802. a groove; 803. a rubber ring; 1201. a spring; 1202. a limiting plate; 1203. a fixed block; 1601. a movable plate; 1602. a control column; 1603. and (5) controlling the block.
Description of the embodiments
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the hydraulic support for an oil cylinder capable of preventing foreign matters from blocking comprises a support main body 1 and a hydraulic cylinder 2, wherein the hydraulic cylinder 2 is fixedly connected to an inner cavity of the support main body 1, both sides of the support main body 1 are fixedly connected with a protecting shell 3, the front side of the protecting shell 3 is fixedly connected with an oil inlet pipe 4, the rear side of the top of the protecting shell 3 is fixedly connected with an oil outlet pipe 5, the inner cavity of the protecting shell 3 is provided with a filter element 6, the front side of the protecting shell 3 is provided with a sealing cover 7, the front side of the inner cavity of the protecting shell 3 is provided with a positioning component 8 matched with the filter element 6, the front side of the sealing cover 7 is fixedly connected with a positioning block 9, one side of the filter element 6 close to the positioning block 9 is provided with a positioning groove 10 matched with the positioning block 9, the inner cavity of the positioning block 9 is provided with a movable groove 11, and the inner cavity of the movable groove 11 is provided with a fixing component 12 matched with the filter element 6.
Referring to fig. 6, the positioning assembly 8 includes a positioning seat 801, a groove 802 is formed on one side of the positioning seat 801, which is close to the filter element 6, and a rubber ring 803 matched with the filter element 6 is arranged in an inner cavity of the groove 802.
The scheme is adopted: through setting up locating component 8, can play the positioning action to filter core 6, make things convenient for hydraulic oil to filter from filter core 6.
Referring to fig. 5 and 7, the fixing assembly 12 includes a spring 1201, two sides of the spring 1201 are fixedly connected with a limiting plate 1202, one side of the limiting plate 1202 away from the spring 1201 is fixedly connected with a fixing block 1203, and one side of the fixing block 1203 away from the limiting plate 1202 penetrates through the positioning block 9 and extends to the outer side of the positioning block 9.
The scheme is adopted: through setting up fixed subassembly 12, can make filter core 6 play the fixed action, conveniently use filter core 6, prevent simultaneously that filter core 6 from putting into behind the protective case 3 in, be difficult to insert filter core 6 in recess 802.
Referring to fig. 5 and 7, the control assembly 16 includes a movable plate 1601, a control column 1602 is rotatably connected to the top of the movable plate 1601 through a rotation shaft, and the top of the control column 1602 penetrates through the positioning block 9 and extends to the outside of the positioning block 9, and is fixedly connected to a control block 1603.
The scheme is adopted: by providing the control assembly 16, the securing assembly 12 can be used, facilitating the use of the securing assembly 12 by a user.
Referring to fig. 1, 5 and 7, the sealing cover 7 is fixedly connected with the protecting shell 3 through bolts, the two sides of the inner cavity of the positioning block 9 are provided with fixed grooves 13 matched with the fixed blocks 1203, the two sides of the inner cavity of the movable groove 11 are provided with first through holes 14 matched with the fixed blocks 1203, the top of the inner cavity of the top movable groove 11 is provided with second through holes 15 matched with the control column 1602, and one side of the oil outlet pipe 5 away from the protecting shell 3 is fixedly connected with the hydraulic cylinder 2.
The scheme is adopted: through setting up closing cap 7, can conveniently clear up in the protective case 3, through setting up first through-hole 14 and second through-hole 15, can play spacing effect to fixed block 1203 and control post 1602 respectively.
Referring to fig. 6, the front side of the positioning seat 801 is fixedly connected with the inner wall of the protecting case 3, one side of the filter element 6 close to the inner wall of the groove 802 is in contact with the inner wall of the groove 802, the front side of the rubber ring 803 is fixedly connected with the inner wall of the groove 802, and the rear side of the rubber ring 803 is tightly attached to the filter element 6.
The scheme is adopted: through setting up positioning seat 801, can play the positioning action to filter core 6, through setting up rubber circle 803, can play sealed effect, prevent unfiltered hydraulic oil from oozing from the contact point.
Referring to fig. 5 and 7, the middle end of the spring 1201 near the inner wall of the movable groove 11 is fixedly connected with the inner wall of the movable groove 11, the side of the limiting plate 1202 near the inner wall of the movable groove 11 contacts with the inner wall of the movable groove 11, and the side of the fixed block 1203 near the fixed groove 13 is inserted into the inner cavity of the fixed groove 13.
The scheme is adopted: through setting up the spring 1201, can play the reset effect to limiting plate 1202, through setting up limiting plate 1202, can drive fixed block 1203 and remove, through setting up fixed block 1203, can play the fixed action to filter core 6.
Referring to fig. 5 and 7, a side of the movable plate 1601, which is far from the control post 1602, is rotatably connected to the limiting plate 1202 by a rotation shaft, and a side of the control post 1602, which is near to the inner wall of the second through hole 15, is in contact with the inner wall of the second through hole 15.
The scheme is adopted: by providing the control column 1602, the movable plate 1601 can be driven to move, and by providing the movable plate 1601, the stopper plate 1202 can be driven to move and press the spring 1201.
When in use, a user pushes the control block 1603, the control block 1603 drives the movable plate 1601 to move through the control column 1602, the movable plate 1601 drives the limiting plate 1202 to slide in the inner cavity of the movable groove 11 and squeeze the spring 1201, the limiting plate 1202 drives the fixed block 1203 to enter the inner cavity of the movable groove 11, the user places the filter element 6 on the front side of the sealing cover 7, after the positioning block 9 is inserted into the inner cavity of the positioning groove 10, the control block 1603 is loosened, the force released after the spring 1201 is squeezed pushes the limiting plate 1202 to reversely move, the limiting plate 1202 drives the fixed block 1203 to be inserted into the inner cavity of the fixed groove 13 and drives the control column 1602 to reversely move and reset through the movable plate 1601 to complete fixation, the user inserts the filter element 6 into the inner cavity of the protecting case 3, simultaneously inserts the filter element 6 into the groove 802 and is tightly contacted with the rubber ring 803, after that, the sealing cover 7 is fixed on the protecting case 3 through bolts, after the filter element 6 is injected from the oil inlet pipe 4, filtered from the filter element 6 and injected into the hydraulic cylinder 2, after the hydraulic oil is reversely injected into the protecting case 3 through the oil pipe 5, and filtered from the oil inlet pipe 4 after the hydraulic oil 2 is reversely injected into the protecting case 3 and flows out of the filter element 6 through the oil pipe 4.
To sum up: this prevent hydraulic support of foreign matter jam hydro-cylinder through setting up filter core 6, locating component 8, fixed subassembly 12 and control module 16's cooperation use, promotes control block 1603, control block 1603 passes through control post 1602 and drives fly leaf 1601 and remove, fly leaf 1601 drives limiting plate 1202 and slides at the inner chamber of fly slot 11, and when extruding spring 1201, limiting plate 1202 drives fixed block 1203 and gets into the inner chamber of fly slot 11, the in-process that the hydraulic cylinder advanced in having solved current hydraulic support in the in-process of using, rock in the cave, in the dust gets into the hydraulic cylinder, and mix with hydraulic oil in the motion of hydraulic oil, long-time use leads to the dust to pile up, make hydraulic oil become turbid, lead to the hydro-cylinder jam, be difficult to continue to use to the hydro-cylinder, lead to the unable normal operating problem of hydraulic support.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prevent hydraulic support of foreign matter jam hydro-cylinder, includes support main part (1) and pneumatic cylinder (2), pneumatic cylinder (2) fixed connection is in the inner chamber of support main part (1), its characterized in that: the novel oil inlet pipe is characterized in that the two sides of the support body (1) are fixedly connected with the protecting shell (3), the front side of the protecting shell (3) is fixedly connected with the oil inlet pipe (4), the rear side of the top of the protecting shell (3) is fixedly connected with the oil outlet pipe (5), the inner cavity of the protecting shell (3) is provided with the filter element (6), the front side of the protecting shell (3) is provided with the sealing cover (7), the front side of the inner cavity of the protecting shell (3) is provided with the locating component (8) matched with the filter element (6), the front side of the sealing cover (7) is fixedly connected with the locating block (9), one side, close to the locating block (9), of the filter element (6) is provided with the locating groove (10) matched with the locating block (9), the inner cavity of the locating block (9) is provided with the movable groove (11), and the inner cavity of the movable groove (11) is provided with the fixing component (12) matched with the filter element (6).
2. The hydraulic mount for a foreign matter blocking prevention cylinder as claimed in claim 1, wherein: the positioning assembly (8) comprises a positioning seat (801), a groove (802) is formed in one side, close to the filter element (6), of the positioning seat (801), and a rubber ring (803) matched with the filter element (6) is arranged in an inner cavity of the groove (802).
3. The hydraulic mount for a foreign matter blocking prevention cylinder as claimed in claim 1, wherein: the fixing assembly (12) comprises a spring (1201), two sides of the spring (1201) are respectively and fixedly connected with a limiting plate (1202), one side, away from the spring (1201), of the limiting plate (1202) is fixedly connected with a fixing block (1203), and one side, away from the limiting plate (1202), of the fixing block (1203) penetrates through the positioning block (9) and extends to the outer side of the positioning block (9);
wherein, the top of limiting plate (1202) is provided with control assembly (16) that uses with fixed subassembly (12) cooperation.
4. A hydraulic mount for an anti-clogging cylinder as recited in claim 3 wherein: the control assembly (16) comprises a movable plate (1601), a control column (1602) is rotatably connected to the top of the movable plate (1601) through a rotating shaft, and the top of the control column (1602) penetrates through the positioning block (9) and extends to the outer side of the positioning block (9) and is fixedly connected with a control block (1603).
5. The hydraulic support for preventing a foreign matter from blocking an oil cylinder as set forth in claim 4, wherein: the sealing cover (7) is fixedly connected with the protecting shell (3) through bolts, fixed grooves (13) matched with the fixed blocks (1203) are formed in two sides of the inner cavity of the positioning block (9), first through holes (14) matched with the fixed blocks (1203) are formed in two sides of the inner cavity of the movable groove (11), second through holes (15) matched with the control column (1602) are formed in the top of the inner cavity of the movable groove (11), and one side, away from the protecting shell (3), of the oil outlet pipe (5) is fixedly connected with the hydraulic cylinder (2).
6. The hydraulic support for preventing a foreign matter from blocking an oil cylinder as set forth in claim 2, wherein: the front side of positioning seat (801) and the inner wall fixed connection of protecting case (3), one side that filter core (6) are close to recess (802) inner wall and the inner wall contact of recess (802), the front side of rubber circle (803) and the inner wall fixed connection of recess (802), the rear side of rubber circle (803) closely laminates with filter core (6).
7. The hydraulic support for preventing a foreign matter from blocking an oil cylinder as set forth in claim 4, wherein: the middle end of one side of the spring (1201) close to the inner wall of the movable groove (11) is fixedly connected with the inner wall of the movable groove (11), one side of the limiting plate (1202) close to the inner wall of the movable groove (11) is in contact with the inner wall of the movable groove (11), and one side of the fixed block (1203) close to the fixed groove (13) is inserted into the inner cavity of the fixed groove (13).
8. The hydraulic support for preventing a foreign matter from blocking an oil cylinder as set forth in claim 4, wherein: one side of the movable plate (1601) far away from the control column (1602) is rotationally connected with the limiting plate (1202) through a rotating shaft, and one side of the control column (1602) close to the inner wall of the second through hole (15) is in contact with the inner wall of the second through hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478664.8A CN116398192A (en) | 2023-04-28 | 2023-04-28 | Hydraulic support for preventing foreign matter from blocking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478664.8A CN116398192A (en) | 2023-04-28 | 2023-04-28 | Hydraulic support for preventing foreign matter from blocking oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116398192A true CN116398192A (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310478664.8A Pending CN116398192A (en) | 2023-04-28 | 2023-04-28 | Hydraulic support for preventing foreign matter from blocking oil cylinder |
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| CN (1) | CN116398192A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914641A (en) * | 2023-09-12 | 2023-10-20 | 河北丰能电力工程有限公司 | Cable laying device |
-
2023
- 2023-04-28 CN CN202310478664.8A patent/CN116398192A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914641A (en) * | 2023-09-12 | 2023-10-20 | 河北丰能电力工程有限公司 | Cable laying device |
| CN116914641B (en) * | 2023-09-12 | 2023-12-01 | 河北丰能电力工程有限公司 | Cable laying device |
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