CN117895415A - Cable protection device, pushing jack and hydraulic support - Google Patents
Cable protection device, pushing jack and hydraulic support Download PDFInfo
- Publication number
- CN117895415A CN117895415A CN202410289726.5A CN202410289726A CN117895415A CN 117895415 A CN117895415 A CN 117895415A CN 202410289726 A CN202410289726 A CN 202410289726A CN 117895415 A CN117895415 A CN 117895415A
- Authority
- CN
- China
- Prior art keywords
- cable
- hole
- protection
- tubular member
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of hydraulic supports, in particular to a cable protection device, a pushing jack and a hydraulic support. The cable protection device comprises a protection part and a fixing part, wherein the protection part can be movably connected to the outer wall of a cylinder barrel of the pushing jack; the protection part is provided with a protection position, and is used for protecting the cable spliced with the cathode socket when the protection part is positioned at the protection position; the fixed part is arranged on the outer wall of the cylinder barrel; after the protection part moves to the protection position, the fixing part is used for detachably fixing the protection part on the cylinder barrel. According to the invention, the cable spliced with the cathode socket is protected through the protecting part, so that the problem of cable damage caused by coal gangue striking the cable is avoided.
Description
Technical Field
The invention relates to the technical field of hydraulic supports, in particular to a cable protection device, a pushing jack and a hydraulic support.
Background
When the existing pushing jack on the hydraulic support is assembled, a cathode socket of the displacement sensor is generally assembled outside a cylinder barrel of the pushing jack, and after the hydraulic support goes down in the well, the cathode socket is connected with a controller of the hydraulic support through a cable. However, due to the complex working conditions in the pit, coal gangue often impacts the cable to damage the cable, and signal transmission between the controller and the displacement sensor is abnormal.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
Therefore, the invention provides the cable protection device which can avoid the problem that the cable spliced with the cathode socket on the pushing jack is damaged due to the impact of underground coal gangue.
The invention also provides a pushing jack comprising the cable protection device.
The invention also provides a hydraulic support comprising the cable protection device or the pushing jack.
According to a first aspect of the invention, a cable protection device is applied to a pushing jack, and comprises:
the protection part can be movably connected to the outer wall of the cylinder barrel of the pushing jack; the protection part is provided with a protection position, and is used for protecting the cable spliced with the cathode socket when the protection part is positioned at the protection position;
a fixing part arranged on the outer wall of the cylinder barrel; after the protection part moves to the protection position, the fixing part is used for detachably fixing the protection part on the cylinder barrel.
Optionally, the fixing portion includes:
the mounting seat is fixed on the outer wall of the cylinder barrel and is arranged opposite to the cathode socket; the mounting seat is provided with a through hole, the axial direction of the through hole is parallel to the axial direction of the cathode socket, and the protection part can be arranged in the through hole in a penetrating way and move along the axial direction of the through hole;
and the limiting part is used for limiting the protecting part to move along the axis direction of the through hole after the protecting part moves to the protecting position along the axis direction of the through hole.
Optionally, the protection part comprises a tubular member, and the cable can be arranged in the tubular member in a penetrating way; after the tubular member is penetrated in the through hole, the tubular member and the through hole are coaxially arranged.
Optionally, the axis of the through hole is co-linear with the axis of the cathode socket.
Optionally, the distance between the end of the through hole adjacent to the cathode receptacle and the cathode receptacle is smaller than the length of the tubular member.
Optionally, the limiting portion includes:
the threaded hole is formed in the mounting seat and is communicated with the through hole;
the limit screw is in threaded fit connection with the threaded hole; after the tubular member is positioned at the protection position, one end of the limit screw extending into the through hole through the threaded hole can be connected with the tubular member in a matched mode, so that the tubular member is fixed at the protection position.
Optionally, after the limit screw extends into the through hole through the threaded hole, a distance between the limit screw and the cathode socket is the same as a length of the tubular member.
Optionally, the mounting seat is fixedly connected with the outer wall of the cylinder barrel in a welding mode.
A push jack according to a second aspect of the present invention comprises:
a cylinder;
the cathode socket is fixed on the outer wall of the cylinder barrel;
one end of the cable is spliced with the cathode socket, and the other end of the cable is spliced with the controller of the hydraulic support;
the cable protection device of the first aspect or its various implementations.
A hydraulic mount according to a third aspect of the invention comprises the cable protection device of the first aspect or its various implementations, or the push jack of the second aspect.
One of the above technical solutions has at least the following advantages or beneficial effects:
according to the cable protection device provided by the invention, the protection part which is movably connected with the cylinder barrel of the pushing jack is arranged on the cylinder barrel of the pushing jack, and when the protection part moves to the protection position, the protection part is fixed at the protection position through the fixing part, so that the protection part protects a cable which is spliced with the cathode socket, and the problem of cable damage caused by the fact that coal gangue impacts the cable is avoided.
The pushing jack provided by the invention is provided with the cable protection device, and the pushing jack provided with the cable protection device has corresponding technical effects because the cable protection device has the technical effects. When the cable protection device is arranged on the pushing jack, the problem of cable damage caused by coal gangue striking the cable can be avoided.
The hydraulic support provided by the invention is provided with the cable protection device or the pushing jack, and the cable protection device and the pushing jack have the technical effects, so that the hydraulic support provided with the cable protection device or the pushing jack has the corresponding technical effects. When the cable protection device is arranged on the pushing jack, the problem of abnormal signal transmission between the displacement sensor and the controller caused by damage of coal gangue to the cable can be avoided.
Drawings
Fig. 1 shows a schematic structural view of a pushing jack provided with a cable protection device according to an embodiment of the present invention;
fig. 2 shows a partially enlarged schematic structural view of fig. 1 at a.
Reference numerals illustrate:
1. a protective part;
2. a cylinder;
3. a cathode socket;
4. a cable 401, an anode plug;
5. fixing part 501, mounting seat 502, through hole 503 and limit screw.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
The pushing jack is one of jacks required by the hydraulic support to move on the working surface, and a displacement sensor arranged in the pushing jack is generally selected to judge whether the hydraulic support completes the frame moving action.
In the prior art, when the pushing jack is assembled, a cathode socket of a displacement sensor is generally assembled outside a cylinder barrel of the pushing jack, and after a hydraulic support goes down in a well, the cathode socket is connected with a controller of the hydraulic support by a cable, so that signal receiving is realized. However, due to the complex working conditions in the pit, coal gangue often impacts the cable to damage the cable, and signal transmission between the controller and the displacement sensor is abnormal.
In order to solve at least one of the technical problems existing in the prior art or related technology, the invention provides a cable protection device, which comprises a protection part and a fixing part, wherein the protection part can be movably connected with the outer wall of a cylinder barrel of a pushing jack; the protection part is provided with a protection position, and is used for protecting the cable spliced with the cathode socket when the protection part is positioned at the protection position; the fixed part is arranged on the outer wall of the cylinder barrel; after the protection part moves to the protection position, the fixing part is used for detachably fixing the protection part on the cylinder barrel. According to the invention, the cylinder barrel of the pushing jack is provided with the protection part movably connected with the pushing jack, and when the protection part moves to the protection position, the protection part is fixed at the protection position through the fixing part, so that the protection part protects a cable spliced with the cathode socket, and the problem of cable damage caused by the fact that coal gangue impacts the cable is avoided.
A cable protector, a pushing jack and a hydraulic bracket according to some embodiments provided by the present invention are described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the cable protection device according to one embodiment of the present invention is applied to a pushing jack, and the cable protection device includes a protection portion 1 and a fixing portion 5, where the protection portion 1 is movably connected to an outer wall of a cylinder 2 of the pushing jack; the protection part 1 is provided with a protection position, and when the protection part 1 is positioned at the protection position, the protection part 1 is used for protecting the cable 4 spliced with the cathode socket 3; the fixed part 5 is arranged on the outer wall of the cylinder barrel 2; after the protecting portion 1 moves to the protecting position, the fixing portion 5 is used for detachably fixing the protecting portion 1 to the cylinder tube 2.
The cathode socket 3 is connected with a displacement sensor positioned in the cylinder 2; one end of the cable 4 is provided with an anode plug 401 for plugging with the cathode socket 3, and the other end of the cable 4 is provided with a cathode plug (not shown in the figure) for plugging with a controller of the hydraulic support.
Here, when the protection part 1 is located at the protection position, one end of the protection part 1 may contact with the sidewall of the cathode socket 3, and the protected part 1 is used for protecting the cable 4 inserted into the cathode socket 3 and covered by the protection part 1.
In this embodiment, through be provided with rather than swing joint's protection part 1 on pushing jack's cylinder 2 to when protection part 1 moved to the protection position, rethread fixed part 5 fixed protection part 1 in the protection position, so that protection part 1 protects the cable 4 of pegging graft with cathode socket 3, in order to avoid the problem that the cable 4 damage that the gangue impacted cable 4 caused.
In some possible embodiments, the fixing portion 5 includes a mounting seat 501 and a limiting portion, and the mounting seat 501 is fixed on the outer wall of the cylinder 2 and is disposed opposite to the cathode socket 3; the mounting seat 501 is provided with a through hole 502, the axial direction of the through hole 502 is parallel to the axial direction of the cathode socket 3, and the protection part 1 can be arranged in the through hole 502 in a penetrating way and can move along the axial direction of the through hole 502; after the shielding portion 1 moves to the shielding position along the axial direction of the through hole 502, the limiting portion is used to limit the shielding portion 1 to move along the axial direction of the through hole 502.
Here, the mount 501 may have a cylindrical structure, and the through hole 502 and the mount 501 are coaxially provided.
In this embodiment, the mounting seat 501 is fixed on the outer wall of the cylinder barrel 2, and the mounting seat 501 and the cathode socket 3 are oppositely arranged, meanwhile, the through hole 502 with the axis direction parallel to the axis direction of the cathode socket 3 is formed in the mounting seat 501, so that the protection part 1 penetrating through the through hole 502 of the mounting seat 501 can move along the axis direction of the through hole 502, further the protection part 1 moves close to or far away from the cathode socket 3 along the axis direction of the through hole 502, and when the protection part 1 moves to the protection position, namely, when the protection part 1 moves to the position where one end of the protection part 1 contacts with the cathode socket 3, the protection part 1 is limited to move along the axis direction of the through hole 502, so that the protection part 1 is fixed at the protection position, and the protection of the protection part 1 on the outer wall of the cylinder barrel 2 for the cable 4 spliced with the cathode socket 3 is realized.
In some possible embodiments, the shield 1 comprises a tubular member, inside which the cable 4 can be threaded; after the tubular member is inserted into the through-hole 502, the tubular member is disposed coaxially with the through-hole 502.
Here, after the tubular member is inserted into the through-hole 502, the outer wall of the tubular member may be clearance-fitted with the inner wall of the through-hole 502 so that the tubular member may be moved in the axial direction of the through-hole 502.
It should be noted that, before the cable 4 is plugged into the cathode socket 3, the tubular member provided in this embodiment may be sleeved on the outer side of the cable 4, and the end of the cable 4 provided with the anode plug 401 is led out from the tubular member and then is close to the cathode socket 3, then, after the anode plug 401 of the cable 4 is plugged into the cathode socket 3, the tubular member is led to pass through the through hole 502 of the mounting seat 501 and move towards the cathode socket 3 until one end of the tubular member contacts with the cathode socket 3, and then the limiting screw 503 limits the protecting portion 1 to move along the axis direction of the through hole 502, so that the tubular member is fixed at the protecting position, and the protection of the cable 4 by the tubular member can be completed.
In this embodiment, the protection portion 1 is designed as a tubular member, so that the cable 4 is completely protected from damage caused by the coal gangue striking the cable 4 after being inserted into the tubular member, and the cable 4 is prevented from being damaged by the tubular member.
In some possible embodiments, the axis of the through hole 502 is co-linear with the axis of the cathode socket 3.
The diameter of the through hole 502 is smaller than the diameter of the cathode socket 3.
Since the mounting seat 501 and the cathode socket 3 are disposed on the outer wall of the cylinder 2 in opposition, and the tubular member is disposed coaxially with the through hole 502, the tubular member inserted into the through hole 502 and the cathode socket 3 can be disposed coaxially with the cathode socket 3 by positioning the axis of the through hole 502 and the axis of the cathode socket 3 on the same straight line, so that the tubular member can move along the axis direction of the cathode socket 3 when moving toward the cathode socket 3, and after the tubular member moves close to the cathode socket 3, the end of the tubular member can be completely contacted with the side wall of the cathode socket 3, and after the tubular member is fixed at the protecting position, the cable 4 inserted into the tubular member is kept coaxially disposed with the cathode socket 3, thereby avoiding the problem of unstable plugging with the cathode socket 3 caused by displacement of the cable 4 on the outer wall of the cylinder 2.
In some possible embodiments, the distance between the end of the through hole 502 near the cathode socket 3 and the cathode socket 3 is smaller than the length of the tubular member.
In this embodiment, by making the distance between the end of the through hole 502 near the cathode socket 3 and the cathode socket 3 smaller than the length of the tubular member, the other end of the tubular member is still located in the through hole 502 after the tubular member moves to the end of the tubular member in the axial direction of the through hole 502 in contact with the cathode socket 3, so that the tubular member is slidably connected with the through hole 502 in the whole process of moving along the axial direction of the through hole 502, and the tubular member and the cathode socket 3 are axially arranged after the tubular member moves to the protecting position.
In some possible embodiments, the limiting portion includes a threaded hole and a limiting screw 503, the threaded hole is formed on the mounting seat 501, and the threaded hole is communicated with the through hole 502; the limit screw 503 is in threaded fit connection with the threaded hole; after the tubular member is in the protecting position, the end of the limit screw 503 extending into the through hole 502 through the threaded hole can be connected with the tubular member in a matching manner, so that the tubular member is fixed in the protecting position.
It should be noted that, the threaded hole may be formed at the top and/or the side of the mounting seat 501; the axial direction of the screw hole is perpendicular to the axial direction of the through hole 502.
In this embodiment, since the distance between the end of the through hole 502 near the cathode socket 3 and the cathode socket 3 is smaller than the length of the tubular member, when the tubular member moves to the end thereof contacting the cathode socket 3, the tubular member still has a part of the through hole 502, so that the end of the screw extending into the through hole 502 through the threaded hole can be connected with the tubular member in a matching manner, the axial limitation of the tubular member by the cooperation of the limiting screw 503 and the cathode socket 3 can be realized, so that the tubular member is fixed in the protecting position.
In some possible embodiments, after the limit screw 503 is inserted into the through hole 502 through the threaded hole, the distance between the limit screw 503 and the cathode socket 3 is the same as the length of the tubular member.
Since the tubular member is still partially located in the through hole 502 when the tubular member is moved to the end thereof in contact with the cathode socket 3, the tubular member can be fixed between the cathode socket 3 and the limit screw 503 by making the distance between the limit screw 503 extending into the threaded hole and the cathode socket 3 the same as the length of the tubular member, and thus, it can be seen that the present embodiment can achieve the fixation of the tubular member at the protecting position by making the distance between the limit screw 503 extending into the threaded hole and the cathode socket 3 the same as the length of the tubular member without providing a connection hole for mating connection with the limit screw 503 on the tubular member, so that the tubular member can be assembled on the cylinder 2.
In some possible embodiments, the mounting 501 is fixedly connected to the outer wall of the cylinder 2 by means of welding.
By fixing the mount 501 on the outer wall of the cylinder 2 in a welded manner, it is possible to realize the fitting of the mount 501 on the cylinder 2 by only welding the mount 501 on the outer wall of the cylinder 2 without changing the structure of the cylinder 2.
The invention provides a pushing jack of one embodiment, which comprises a cylinder barrel 2, a cathode socket 3, a cable 4 and a cable protection device in any embodiment, wherein the cathode socket 3 is fixed on the outer wall of the cylinder barrel 2; one end of the cable 4 is spliced with the cathode socket 3, and the other end is spliced with a controller of the hydraulic support.
The pushing jack of the present embodiment includes any one of the cable protection devices of the first aspect, so that the pushing jack has the beneficial effects of any one of the embodiments described above, and will not be described herein. The hydraulic support of one embodiment provided by the invention comprises the cable protecting device in any embodiment or the pushing jack in the embodiment.
The hydraulic support of the present embodiment includes any one of the cable protection device of the first aspect or the pushing jack of the second aspect, so that the hydraulic support has the beneficial effects of any one of the embodiments described above, and will not be described herein.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," "specific examples," or "some examples," etc., refer to a particular feature, structure, material, or characteristic described in connection with the embodiment or example as being included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (10)
1. The utility model provides a cable protection device, is applied to pushing jack, its characterized in that includes:
the protection part can be movably connected to the outer wall of the cylinder barrel of the pushing jack; the protection part is provided with a protection position; when the protection part is positioned at the protection position, the protection part is used for protecting a cable spliced with the cathode socket;
a fixing part arranged on the outer wall of the cylinder barrel; after the protection part moves to the protection position, the fixing part is used for detachably fixing the protection part on the cylinder barrel;
the fixing part comprises a mounting seat, and the mounting seat is fixed on the outer wall of the cylinder barrel and is arranged opposite to the cathode socket; the mounting seat is provided with a through hole, the axial direction of the through hole is parallel to the axial direction of the cathode socket, and the protection part can be arranged in the through hole in a penetrating way and move along the axial direction of the through hole; wherein, the guard portion includes tubular member, the cable can wear to establish in the tubular member.
2. The cable protection device of claim 1, wherein the securing portion further comprises:
and the limiting part is used for limiting the protecting part to move along the axial direction of the through hole after the protecting part moves to the protecting position along the axial direction of the through hole.
3. The cable protection device of claim 2, wherein the tubular member is coaxially disposed with the through bore after the tubular member is disposed within the through bore.
4. A cable protection device according to claim 3, wherein the axis of the through hole is co-linear with the axis of the cathode socket.
5. The cable protection device of claim 4, wherein a distance between an end of the through hole proximate the cathode receptacle and the cathode receptacle is less than a length of the tubular member.
6. The cable protection device of claim 5, wherein the limiting portion comprises:
the threaded hole is formed in the mounting seat and is communicated with the through hole;
the limit screw is in threaded fit connection with the threaded hole; after the tubular member is positioned at the protection position, one end of the limit screw, which extends into the through hole through the threaded hole, can be connected with the tubular member in a matched manner, so that the tubular member is fixed at the protection position.
7. The cable protection device of claim 6, wherein a distance between the stop screw and the cathode receptacle after the stop screw extends into the through hole through the threaded hole is the same as a length of the tubular member.
8. The cable protection device according to any one of claims 2 to 7, wherein the mounting base is fixedly connected to the outer wall of the cylinder by means of welding.
9. A thrust jack, comprising:
a cylinder;
the cathode socket is fixed on the outer wall of the cylinder barrel;
one end of the cable is spliced with the cathode socket, and the other end of the cable is spliced with a controller of the hydraulic support;
a cable protection device according to any one of claims 1 to 8.
10. A hydraulic prop comprising a cable protection device according to any one of claims 1 to 8 or a push jack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410289726.5A CN117895415B (en) | 2024-03-14 | 2024-03-14 | Cable protection device, pushing jack and hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410289726.5A CN117895415B (en) | 2024-03-14 | 2024-03-14 | Cable protection device, pushing jack and hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117895415A true CN117895415A (en) | 2024-04-16 |
| CN117895415B CN117895415B (en) | 2024-05-28 |
Family
ID=90649142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410289726.5A Active CN117895415B (en) | 2024-03-14 | 2024-03-14 | Cable protection device, pushing jack and hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117895415B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132635A (en) * | 2014-08-14 | 2014-11-05 | 河北高达电子科技有限公司 | Bridge prestress displacement detection device |
| WO2016183995A1 (en) * | 2015-05-18 | 2016-11-24 | 杭州盈江机械制造有限公司 | Hydraulic oil pump with automatic speed regulation |
| CN209844063U (en) * | 2019-06-12 | 2019-12-24 | 东莞市烨冠电子科技有限公司 | Electronic connector with waterproof function |
| CN215120091U (en) * | 2021-04-07 | 2021-12-10 | 坤越线缆有限公司 | Control cable for signal transmission |
| CN216529635U (en) * | 2021-08-19 | 2022-05-13 | 智达云强电缆科技有限公司 | Overhead insulated cable |
| CN217437622U (en) * | 2021-09-28 | 2022-09-16 | 石贵 | Mechatronics assembly of displacement transmitter |
| CN218058265U (en) * | 2022-08-08 | 2022-12-16 | 三一重型装备有限公司 | Jack and hydraulic support |
| CN219477573U (en) * | 2023-03-31 | 2023-08-04 | 博海森自动化科技(上海)有限公司 | Cable joint connection structure |
-
2024
- 2024-03-14 CN CN202410289726.5A patent/CN117895415B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132635A (en) * | 2014-08-14 | 2014-11-05 | 河北高达电子科技有限公司 | Bridge prestress displacement detection device |
| WO2016183995A1 (en) * | 2015-05-18 | 2016-11-24 | 杭州盈江机械制造有限公司 | Hydraulic oil pump with automatic speed regulation |
| CN209844063U (en) * | 2019-06-12 | 2019-12-24 | 东莞市烨冠电子科技有限公司 | Electronic connector with waterproof function |
| CN215120091U (en) * | 2021-04-07 | 2021-12-10 | 坤越线缆有限公司 | Control cable for signal transmission |
| CN216529635U (en) * | 2021-08-19 | 2022-05-13 | 智达云强电缆科技有限公司 | Overhead insulated cable |
| CN217437622U (en) * | 2021-09-28 | 2022-09-16 | 石贵 | Mechatronics assembly of displacement transmitter |
| CN218058265U (en) * | 2022-08-08 | 2022-12-16 | 三一重型装备有限公司 | Jack and hydraulic support |
| CN219477573U (en) * | 2023-03-31 | 2023-08-04 | 博海森自动化科技(上海)有限公司 | Cable joint connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117895415B (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102019708B1 (en) | earth device improved in structure | |
| CN109888563B (en) | Multi-core direct-plug electric connection structure for drilling instrument | |
| KR102045848B1 (en) | Fixing device to prevent leakage of underground line | |
| CN117895415B (en) | Cable protection device, pushing jack and hydraulic support | |
| CN106840456A (en) | Generating set oil groove dedicated temperature sensor | |
| CN110986748B (en) | Monitoring device for monitoring backward movement of cutter rest of shield hob | |
| CN113933546B (en) | Connecting device | |
| CN105356074A (en) | Brazing copper aluminum transitional jointing clamp | |
| KR20190124565A (en) | Hanger for danger sign board of high voltage | |
| CN215804512U (en) | Guide buffer short joint of logging instrument | |
| CN221236687U (en) | High-efficiency spiral drill rod | |
| KR101067533B1 (en) | Anti-corrosion earth rod and producting method therein | |
| KR101047143B1 (en) | Insulating pipe for protection of underground transmission line | |
| KR200298822Y1 (en) | Terminal structure of lightning arrester using in power line | |
| CN201549365U (en) | Current transformer | |
| CN110805077B (en) | Mounting method for deformation measuring tube of cast-in-place pile foundation pile | |
| KR102572890B1 (en) | Anchor foundation mechanism having grounding member | |
| CN210779935U (en) | Power cable protection pipe connecting device | |
| CN219321807U (en) | Lightning arrester with replaceable lightning rod | |
| EP2097671B1 (en) | Device for quickly fixing an armor to a rod of a street lighting pole | |
| CN220226746U (en) | Drilling tool buckling device for petroleum and natural gas drilling | |
| CN214578491U (en) | Bushing structure for mounting spring | |
| CN220469830U (en) | Joint device and drilling equipment | |
| CN218439221U (en) | Eccentric drilling tool | |
| CN220984876U (en) | Graphite grounding electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |