CN112503180A - Follow-on hydraulic equipment monitoring devices - Google Patents
Follow-on hydraulic equipment monitoring devices Download PDFInfo
- Publication number
- CN112503180A CN112503180A CN202011350756.0A CN202011350756A CN112503180A CN 112503180 A CN112503180 A CN 112503180A CN 202011350756 A CN202011350756 A CN 202011350756A CN 112503180 A CN112503180 A CN 112503180A
- Authority
- CN
- China
- Prior art keywords
- annular
- hydraulic
- block
- circular opening
- monitor body
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses an improved hydraulic equipment monitoring device which comprises a hydraulic monitor body, wherein a guide pipe is arranged at the upper end of the hydraulic monitor body in a communicating mode. According to the invention, the connector of the hydraulic equipment is in threaded connection with the threaded connector, the annular block is pulled to be matched with the movable block to move on the limiting rod in the strip-shaped groove, so that the annular block is sleeved with the connector of the hydraulic equipment, the pull block is pulled to drive the connecting rod to compress the pressure spring until the two arc-shaped sealing blocks are abutted against and contacted with the connector of the hydraulic equipment, the sealing effect at the pipe orifice of the connector is effectively improved, the annular sleeve is matched with the strip-shaped split to be sleeved on the hydraulic monitor body, the guide pipe and the power supply wiring are respectively arranged by penetrating through the first circular opening and the second circular opening, and the arc-shaped limiting blocks are abutted against and contacted with the side wall of the hydraulic monitor body, so that the arc-shaped limiting blocks and the annular sleeve of a polyurethane product provide protection for the hydraulic.
Description
Technical Field
The invention relates to the technical field of hydraulic equipment monitoring, in particular to an improved hydraulic equipment monitoring device.
Background
The hydraulic equipment is a device for transmitting pressure through hydraulic oil, the hydraulic equipment is a carrier of a hydraulic system, the complete hydraulic system consists of five parts, namely a power element, an execution element and the like, an execution element hydraulic cylinder and a hydraulic motor of the hydraulic system are used for converting pressure energy of liquid into mechanical energy to obtain required linear reciprocating motion or rotary motion, the hydraulic equipment is widely applied to industrial and civil industries, and monitoring devices are often arranged in the hydraulic equipment.
When the existing hydraulic equipment monitoring device is used in practice, the sealing effect of the joint of the hydraulic equipment monitoring device is poor, a monitoring equipment protection structure is lacked, and the problem is solved by the improved hydraulic equipment monitoring device.
Disclosure of Invention
The invention provides an improved hydraulic equipment monitoring device, which is used for solving the technical problems that the sealing effect of a connecting pipe opening of the traditional hydraulic equipment monitoring device in the background art is poor and a monitoring equipment protection structure is lacked when the traditional hydraulic equipment monitoring device is actually used.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a follow-on hydraulic equipment monitoring devices, includes the hydraulic pressure monitor body, the upper end intercommunication of hydraulic pressure monitor body is provided with the pipe, the upper end intercommunication of pipe is provided with the hydraulic pressure indicator body, the lower extreme of hydraulic pressure monitor body is equipped with the power connection, both ends all are equipped with the cylindricality connecting block about the hydraulic pressure monitor body, be equipped with screwed joint on the lateral wall that the hydraulic pressure monitor body was kept away from to the cylindricality connecting block, sliding connection has sealing mechanism on the annular lateral wall of cylindricality connecting block, the fixed cover that cup joints has protection machanism on the hydraulic pressure monitor body.
Preferably, a hydraulic valve is fixedly mounted on the conduit.
Preferably, sealing mechanism is including cup jointing the annular piece on the cylindricality connecting block, two the movable blocks that are the symmetric distribution of fixedly connected with on the annular inner wall of annular piece, two the movable block all is close to the right-hand member lateral wall setting of annular piece, two the movable block all with the annular lateral wall sliding connection of cylindricality connecting block, be equipped with a plurality of circular recesses on the annular inner wall of annular piece, it is a plurality of be two liang of relative settings between the circular recess, it is a plurality of equal fixedly connected with pressure spring on the relative inner wall of circular recess, it is a plurality of the equal fixedly connected with connecting rod of one end that pressure spring kept away from the circular recess inner wall, with one side two the same arc seal piece of one end fixedly connected with that pressure spring.
Preferably, the arc-shaped sealing block is a rubber product.
Preferably, be equipped with two bar grooves that are the symmetric distribution on the annular lateral wall of cylindricality connecting block, equal fixed connection has the gag lever post that the level set up on the left and right sides inner wall in two bar grooves, two the movable block cup joints two gag lever posts settings respectively.
Preferably, two keep away from the movable block all be equipped with the opening on the annular inner wall of circular recess, two are close to the left side equal fixedly connected with draws the piece on the annular lateral wall of connecting rod, two draw the piece all to be close to pressure spring setting, two draw the piece to run through two opening settings respectively.
Preferably, the protection machanism is including cup jointing the annular cover on the hydraulic monitor body, be equipped with the bar breach on the annular lateral wall of annular cover, be equipped with first circular opening and the circular opening of second on the annular lateral wall of annular cover, first circular opening sets up with bar breach intercommunication, be symmetric distribution between first circular opening and the circular opening of second, pipe and power wiring run through first circular opening and the circular opening setting of second respectively, first circular opening and pipe phase-match set up, the circular opening of second sets up with power wiring phase-match, a plurality of arc stoppers of fixedly connected with on the annular inner wall of annular cover, it is a plurality of the arc stopper is close to the setting of both ends lateral wall about the annular cover respectively, and is a plurality of be two liang of relative settings between the arc stopper.
Preferably, the arc-shaped limiting block and the annular sleeve are integrally arranged, and the annular sleeve and the arc-shaped limiting block are polyurethane products.
Compared with the prior art, the invention has the beneficial effects that:
1. through the joint and the screwed joint threaded connection with hydraulic equipment, the cooperation movable block of pulling annular piece moves on the gag lever post of bar inslot for the annular piece cup joints hydraulic equipment's joint setting, and the pulling draws the piece to make it drive connecting rod compression pressure spring, connects the counterbalance contact until two arc seal blocks and hydraulic equipment, effectively improves the sealed effect of joint nozzle department.
2. Through cup jointing annular cover cooperation bar breach on the hydraulic pressure monitor body for pipe and power wiring run through first circular opening and the setting of the circular opening of second respectively, and make the contact of the lateral wall counterbalance of a plurality of arc stopper and hydraulic pressure monitor body, thereby make the arc stopper and the annular cover of polyurethane products provide the protection to the hydraulic pressure monitor body, prolong the life of hydraulic pressure monitor body.
Drawings
FIG. 1 is a schematic cross-sectional view of an improved hydraulic equipment monitoring apparatus in accordance with the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic structural diagram of a ring block of an improved hydraulic equipment monitoring device according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is a schematic diagram of an improved annular sleeve of a hydraulic device monitoring apparatus according to the present invention;
fig. 7 is a schematic structural diagram of an improved hydraulic equipment monitoring device according to the present invention.
In the figure: the hydraulic pressure monitoring device comprises a hydraulic pressure monitoring device body 1, a guide pipe 2, a hydraulic pressure indicator body 3, a power supply wiring 4, a cylindrical connecting block 5, a threaded joint 6, a hydraulic pressure valve 7, an annular block 8, a movable block 9, a circular groove 10, a pressure spring 11, a connecting rod 12, an arc-shaped sealing block 13, a strip-shaped groove 14, a limiting rod 15, an opening 16, a pull block 17, an annular sleeve 18, a strip-shaped crack 19, a first circular opening 20, a circular opening 21, a second circular opening 22 and an arc-shaped limiting block 22.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an improved hydraulic equipment monitoring device comprises a hydraulic monitor body 1, a conduit 2 is communicated with the upper end of the hydraulic monitor body 1, a hydraulic valve 7 is fixedly mounted on the conduit 2, and the hydraulic valve 7 is of the type: DSG-01-34D, a hydraulic valve 7 is used for controlling the flow in a guide pipe 2, the upper end of the guide pipe 2 is communicated with a hydraulic indicator body 3, the lower end of the hydraulic monitor body 1 is provided with a power supply wiring 4, the power supply wiring 4 is connected with a power supply connector and is used for supplying power to the hydraulic monitor body 1, the left end and the right end of the hydraulic monitor body 1 are both provided with a cylindrical connecting block 5, the side wall of the cylindrical connecting block 5 far away from the hydraulic monitor body 1 is provided with a threaded connector 6, the threaded connector 6 is used for being in threaded connection with a connector of hydraulic equipment, the annular side wall of the cylindrical connecting block 5 is slidably connected with a sealing mechanism, the sealing mechanism comprises an annular block 8 sleeved on the cylindrical connecting block 5, the annular inner wall of the annular block 8 is fixedly connected with two movable blocks 9 which are symmetrically distributed, and the, two movable blocks 9 all with the annular lateral wall sliding connection of cylindricality connecting block 5, be equipped with a plurality of circular recesses 10 on the annular inner wall of annular piece 8, be two liang of relative settings between a plurality of circular recesses 10, equal fixedly connected with pressure spring 11 on the relative inner wall of a plurality of circular recesses 10, pressure spring 11's elastic property makes connecting rod 12 drive arc seal piece 13 and hydraulic equipment joint counterbalance contact, the arc seal piece 13 of two rubber products counterbalance contact this moment, and seal joint mouth of pipe department, effectively improve the sealed effect of joint mouth of pipe department, the equal fixedly connected with connecting rod 12 of one end that circular recess 10 inner wall was kept away from to a plurality of pressure spring 11, the same one end fixedly connected with of pressure spring 11 is sealed 13 with one side two connecting rods 12, arc seal piece 13 is rubber products.
Be equipped with two bar grooves 14 that are the symmetric distribution on the annular lateral wall of cylindricality connecting block 5, equal fixed connection has the gag lever post 15 that the level set up on two bar grooves 14's the left and right sides inner wall, two movable block 9 cup joint two gag lever posts 15 settings respectively, when movable block 9 moved on gag lever post 15, be convenient for stimulate annular piece 8 and remove, restriction annular piece 8's moving range simultaneously, two all are equipped with opening 16 on keeping away from the annular inner wall of the circular recess 10 of movable block 9, two equal fixedly connected with draws piece 17 on being close to the annular lateral wall of left side connecting rod 12, two draw piece 17 all are close to pressure spring 11 and set up, two draw piece 17 to run through two opening 16 settings respectively, draw piece 17 on the opening 16 and be convenient for stimulate connecting rod 12 and remove.
The hydraulic monitor body 1 is fixedly sleeved with a protection mechanism, the protection mechanism comprises an annular sleeve 18 sleeved on the hydraulic monitor body 1, a strip-shaped split 19 is arranged on the annular side wall of the annular sleeve 18, the strip-shaped split 19 is convenient for sleeving the annular sleeve 18 on the hydraulic monitor body 1, a first circular opening 20 and a second circular opening 21 are arranged on the annular side wall of the annular sleeve 18, the first circular opening 20 is communicated with the strip-shaped split 19, the first circular opening 20 and the second circular opening 21 are symmetrically distributed, a conduit 2 and a power supply wiring 4 are respectively arranged by penetrating through the first circular opening 20 and the second circular opening 21, the first circular opening 20 is matched with the conduit 2, the second circular opening 21 is matched with the power supply wiring 4, the first circular opening 20 and the second circular opening 21 are respectively used for sleeving the conduit 2 and the power supply wiring 4, a plurality of arc-shaped limiting blocks 22 are fixedly connected on the annular inner wall of the annular sleeve 18, a plurality of arc stopper 22 are close to the left and right sides both ends lateral wall setting of annular cover 18 respectively, are two liang of relative settings between a plurality of arc stoppers 22, and arc stopper 22 is the integration setting with annular cover 18, and annular cover 18 and arc stopper 22 are polyurethane products, and polyurethane products's arc stopper 22 and annular cover 18 can provide the protection to hydraulic monitor body 1, prolong hydraulic monitor body 1's life.
When the hydraulic monitor is used, a connector of hydraulic equipment is manually connected with a threaded connector 6 in a threaded manner, the annular block 8 is pulled to be matched with two movable blocks 9 to move on a limiting rod 15 in a strip-shaped groove 14 until the annular block 8 moves to one side of the connector of the hydraulic equipment, the arc-shaped sealing blocks 13 are abutted and contacted with the connector of the hydraulic equipment, the pulling blocks 17 on openings 16 on two sides are pulled, the pulling blocks 17 drive the connecting rod 12 to move in the circular groove 10 and compress the pressure springs 11 until the two arc-shaped sealing blocks 13 are abutted and contacted with the connector of the hydraulic equipment, the two arc-shaped sealing blocks 13 are matched with a plurality of pressure springs 11 to be fixed on the annular block 8, the arc-shaped sealing blocks 13 of two rubber products are abutted and contacted, the pipe orifice of the connector is sealed, the sealing effect at the pipe orifice of the connector is effectively improved, the annular sleeve 18 is manually matched with a strip-shaped split, make pipe 2 and power wiring 4 run through first circular opening 20 and the setting of second circular opening 21 respectively to use glue to seal up bar breach 19, make the contact of a plurality of arc stopper 22 and the lateral wall counterbalance of hydraulic pressure monitor body 1, thereby make the arc stopper 22 and the annular cover 18 of polyurethane products provide the protection to hydraulic pressure monitor body 1, prolong the life of hydraulic pressure monitor body 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a follow-on hydraulic equipment monitoring devices, includes hydraulic pressure monitor body (1), the upper end intercommunication of hydraulic pressure monitor body (1) is provided with pipe (2), the upper end intercommunication of pipe (2) is provided with hydraulic pressure indicator body (3), the lower extreme of hydraulic pressure monitor body (1) is equipped with power wiring (4), its characterized in that, both ends all are equipped with cylindricality connecting block (5) about hydraulic pressure monitor body (1), be equipped with on the lateral wall of hydraulic pressure monitor body (1) is kept away from in cylindricality connecting block (5) screwed joint (6), sliding connection has sealing mechanism on the annular lateral wall of cylindricality connecting block (5), the fixed cover has protection machanism on hydraulic pressure monitor body (1).
2. An improved hydraulic equipment monitoring device according to claim 1, characterized in that a hydraulic valve (7) is fixedly mounted on the conduit (2).
3. The improved hydraulic equipment monitoring device according to claim 1, wherein the sealing mechanism comprises an annular block (8) sleeved on a cylindrical connecting block (5), two movable blocks (9) which are symmetrically distributed are fixedly connected to the annular inner wall of the annular block (8), the two movable blocks (9) are both arranged close to the right end side wall of the annular block (8), the two movable blocks (9) are both in sliding connection with the annular side wall of the cylindrical connecting block (5), a plurality of circular grooves (10) are arranged on the annular inner wall of the annular block (8), every two of the circular grooves (10) are arranged oppositely, pressure springs (11) are fixedly connected to the opposite inner walls of the circular grooves (10), and connecting rods (12) are fixedly connected to one ends, far away from the inner walls of the circular grooves (10), of the pressure springs (11), one ends of the two connecting rods (12) on the same side, which are far away from the pressure spring (11), are fixedly connected with the same arc-shaped sealing block (13).
4. An improved hydraulic equipment monitoring device according to claim 1, in which the arcuate sealing block (13) is rubber.
5. The improved hydraulic equipment monitoring device according to claim 3, wherein two symmetrically distributed strip-shaped grooves (14) are formed in the annular side wall of the cylindrical connecting block (5), horizontally arranged limiting rods (15) are fixedly connected to the inner walls of the left side and the right side of the two strip-shaped grooves (14), and the two movable blocks (9) are respectively sleeved with the two limiting rods (15).
6. An improved hydraulic equipment monitoring device according to claim 3, characterized in that two openings (16) are provided on the inner annular wall of the circular groove (10) away from the movable block (9), two pulling blocks (17) are fixedly connected to the two annular side walls close to the left side connecting rod (12), two pulling blocks (17) are provided close to the pressure spring (11), and two pulling blocks (17) are provided through two openings (16), respectively.
7. The improved hydraulic equipment monitoring device according to claim 1, wherein the protection mechanism comprises an annular sleeve (18) sleeved on the hydraulic monitor body (1), a strip-shaped split (19) is arranged on an annular side wall of the annular sleeve (18), a first circular opening (20) and a second circular opening (21) are arranged on an annular side wall of the annular sleeve (18), the first circular opening (20) is communicated with the strip-shaped split (19), the first circular opening (20) and the second circular opening (21) are symmetrically distributed, the conduit (2) and the power supply wiring (4) are respectively arranged by penetrating through the first circular opening (20) and the second circular opening (21), the first circular opening (20) is arranged by being matched with the conduit (2), and the second circular opening (21) is arranged by being matched with the power supply wiring (4), fixedly connected with a plurality of arc stopper (22) on the annular inner wall of annular cover (18), it is a plurality of arc stopper (22) are close to the both ends lateral wall setting about annular cover (18) respectively, and are a plurality of be two liang of relative settings between arc stopper (22).
8. The improved hydraulic equipment monitoring device as recited in claim 7, wherein the arc-shaped limiting block (22) is integrally disposed with the annular sleeve (18), and the annular sleeve (18) and the arc-shaped limiting block (22) are both made of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350756.0A CN112503180A (en) | 2020-11-26 | 2020-11-26 | Follow-on hydraulic equipment monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350756.0A CN112503180A (en) | 2020-11-26 | 2020-11-26 | Follow-on hydraulic equipment monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112503180A true CN112503180A (en) | 2021-03-16 |
Family
ID=74966385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011350756.0A Withdrawn CN112503180A (en) | 2020-11-26 | 2020-11-26 | Follow-on hydraulic equipment monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112503180A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206530569U (en) * | 2017-01-05 | 2017-09-29 | 江苏铁科新材料股份有限公司 | Wind-driven generator hydraulic auxiliary elastic-support monitoring device |
| CN107741309A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of separate type device for detecting sealability of LWD |
| CN207960521U (en) * | 2018-01-12 | 2018-10-12 | 东莞鑫瑞精密机械零件有限公司 | A kind of casing joint suitable for oil exploration equipment |
| CN211750164U (en) * | 2020-01-08 | 2020-10-27 | 西安医学院 | Oral medical instrument joint fixing and locking device |
-
2020
- 2020-11-26 CN CN202011350756.0A patent/CN112503180A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206530569U (en) * | 2017-01-05 | 2017-09-29 | 江苏铁科新材料股份有限公司 | Wind-driven generator hydraulic auxiliary elastic-support monitoring device |
| CN107741309A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of separate type device for detecting sealability of LWD |
| CN207960521U (en) * | 2018-01-12 | 2018-10-12 | 东莞鑫瑞精密机械零件有限公司 | A kind of casing joint suitable for oil exploration equipment |
| CN211750164U (en) * | 2020-01-08 | 2020-10-27 | 西安医学院 | Oral medical instrument joint fixing and locking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112503180A (en) | Follow-on hydraulic equipment monitoring devices | |
| CN211029776U (en) | Hydraulic cylinder assembly quality | |
| CN210398060U (en) | Novel quick connector for irrigation pipe fitting | |
| CN210361355U (en) | Strengthening rib grabbing device | |
| CN210815845U (en) | Medical cleaning gun | |
| CN203570733U (en) | Differential-pressure-type automatic gas busbar switching device | |
| CN112332156A (en) | Spring self-locking structure of waterproof connector | |
| CN206669323U (en) | A kind of strong dioxide bottle charging joint of sealing | |
| CN106286462A (en) | A kind of bi-directional expansion oil cylinder | |
| CN209309311U (en) | Respirator mouth plugging device under a kind of engine | |
| CN218818174U (en) | Pneumatic pipeline valve is with connecting | |
| CN203517253U (en) | Lubricating grease applying device | |
| CN206571812U (en) | A kind of fluid pressure type bearing pin plug assembly | |
| CN207880261U (en) | A kind of universal pneumatic high-voltage quick connector | |
| CN208267819U (en) | A kind of novel ram preventer | |
| CN212838709U (en) | Wear-resistant hydraulic oil cylinder | |
| CN216044761U (en) | Electro-hydraulic push rod | |
| CN218093697U (en) | Hydraulic cylinder sealing equipment convenient to install | |
| CN212775016U (en) | Safe type bender hydro-cylinder | |
| CN217951004U (en) | Guide sleeve convenient to disassemble, assemble and clean | |
| CN214331772U (en) | Combined explosion-proof connecting pipe | |
| CN210860286U (en) | Pipeline robot driving system based on external power source | |
| CN217106188U (en) | Long service life's hydraulic pressure type grouting equipment | |
| CN220319992U (en) | Oil pressure device with bidirectional pressure function | |
| CN220337494U (en) | Switch valve for oilfield pipeline |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210316 |