CN216512228U - Hydraulic conversion centralized control device for coal mine main elevator - Google Patents
Hydraulic conversion centralized control device for coal mine main elevator Download PDFInfo
- Publication number
- CN216512228U CN216512228U CN202123222870.8U CN202123222870U CN216512228U CN 216512228 U CN216512228 U CN 216512228U CN 202123222870 U CN202123222870 U CN 202123222870U CN 216512228 U CN216512228 U CN 216512228U
- Authority
- CN
- China
- Prior art keywords
- face
- box body
- control device
- coal mine
- centralized control
- 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.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 title claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 230000017525 heat dissipation Effects 0.000 claims abstract description 10
- 230000001050 lubricating effect Effects 0.000 claims abstract description 10
- 238000005461 lubrication Methods 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 13
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Images
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
The utility model provides a hydraulic conversion centralized control device for a coal mine main elevator, which belongs to the technical field of control devices and aims to solve the problems that when a traditional control device is used for converting a hydraulic station and a lubricating station, the operation steps are complicated, the operation stability and the working efficiency of the main elevator are influenced, and secondly, a heat dissipation hole in a box body in the control device is easily blocked by dust, so that the ventilation effect is influenced; the right end face of the box body is provided with heat dissipation holes, and the right end face of the box body, which is positioned at the heat dissipation holes, is rotatably connected with four cleaning pieces; a driving piece is arranged at the upper part of the right end face of the box body; through the arrangement of the hydraulic station change-over switch, the change-over between the main hydraulic station and the standby hydraulic station can be completed only by rotating the hydraulic station change-over switch, so that the operation stability and the working efficiency of the main hoister are greatly improved; through the cooperation of pulling portion, driving piece and cleaning piece, avoided the louvre of box right-hand member face to be blockked up the phenomenon by the dust.
Description
Technical Field
The utility model belongs to the technical field of control devices, and particularly relates to a hydraulic conversion centralized control device for a coal mine main elevator.
Background
The hydraulic station of the mine main hoist is one of the important components of the hoist, is the most important electromechanical equipment in a main hoisting system, and forms a complete braking system together with a disc brake, a pipeline connecting system and the like.
However, when the conventional control device switches the main and standby hydraulic stations, the switching must be performed at the low-voltage main control cabinet, the hydraulic station electric control box and the oil line, so that the operation steps are complicated, and the operation stability and the working efficiency of the main elevator are affected; meanwhile, the power switch of the oil pump motor, the power switch of the electromagnetic valve, cables of the electromagnetic valve and the like are distributed, so that an electric control system is complex, the daily maintenance workload of equipment is large, and the troubleshooting treatment of electrical faults is difficult; moreover, after the box body on the traditional control device is used for a long time, the radiating holes on the box body are easily blocked by dust, so that the ventilation effect of the radiating holes is influenced, and the service life of electronic elements in the box body is shortened.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a hydraulic pressure conversion centralized control device for a coal mine main elevator is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a hydraulic conversion centralized control device for a coal mine main elevator, which aims to solve the problems that when a traditional control device is used for converting a hydraulic station and a lubricating station, the operation steps are complicated, the operation stability and the working efficiency of the main elevator are influenced, and secondly, a heat dissipation hole on a box body in the control device is easily blocked by dust, and the ventilation effect is influenced.
The utility model relates to a hydraulic conversion centralized control device for a coal mine main elevator, which has the purpose and the effect and is achieved by the following specific technical means:
a hydraulic conversion centralized control device for a coal mine main elevator comprises a box body; the right end face of the box body is provided with heat dissipation holes, and the right end face of the box body, which is positioned at the heat dissipation holes, is rotatably connected with four cleaning pieces; a driving piece is arranged on the upper part of the right end face of the box body, and a pulling part is arranged on the upper part of the rear side of the box body; the box front side rotates through the pivot and is connected with the chamber door, and chamber door upper portion installs a floodgate voltmeter and No. two floodgate voltmeters, and hydraulic pressure station change over switch and lubrication station change over switch are installed to the chamber door lower part, and the guide rail is installed to the inside rear side wall upper end of chamber door, and installs six relays on the guide rail, and the terminal is installed to the inside rear side wall lower extreme of chamber door.
Further, the cleaning piece comprises a vertical rotating shaft, a gear and bristles, the vertical rotating shaft is rotatably connected to the right end face of the box body through a shaft sleeve, and the gear is fixedly connected to the upper end of the vertical rotating shaft; bristles are arranged outside the vertical rotating shaft.
Furthermore, the driving piece is of a strip-shaped plate structure, a driving rack is arranged on the left end face of the driving piece, two sliding cylinders are arranged on the right end face of the driving piece, and a transverse guide rod fixed on the right end face of the box body is connected inside each sliding cylinder in a sliding manner; the front end of the driving rack is fixedly connected with a first pull rope, the other end of the first pull rope is fixedly connected with the right side of the front end face of the box door, a first pulley is connected to the outer portion of the first pull rope in a sliding mode, and the first pulley is installed on the upper portion of the right side of the box body.
Furthermore, the driving rack is meshed with the gear, and when the driving rack is in a forward and backward moving state, the gear drives the vertical rotating shaft to rotate.
Further, the pulling portion includes Contraband font fixed plate, support guide arm, sliding block and second stay cord, Contraband font fixed plate fixed connection is at the box rear end face, and Contraband font fixed plate inboard is provided with two support guide arms, and two support guide arm outside sliding connection have the sliding block, and a sliding block side fixedly connected with second stay cord, and the every support guide arm outside is located the sliding block right side and has all cup jointed the spring, the second stay cord other end and driving rack rear end fixed connection, and the outside sliding connection of second stay cord has the second pulley, and the second pulley is installed on box rear end face upper portion.
Further, when the box door is in a closed state, the driving rack is in a forward moving state, the sliding block is in a rightward sliding state, and the spring outside each supporting guide rod is in a compressed state.
Furthermore, the hydraulic station change-over switch and the lubrication station change-over switch are distributed on the box door in a bilateral symmetry mode, and the hydraulic station change-over switch and the lubrication station change-over switch are electrically connected with the relay.
Furthermore, when the vertical rotating shaft is in a rotating state, the bristles are in contact with the radiating holes in the right end face of the box body.
Compared with the prior art, the utility model has the following beneficial effects:
1. through the setting of hydraulic pressure station change over switch, can be when carrying out the conversion work in activestandby hydraulic pressure station, only need rotating hydraulic pressure station change over switch after, only need to carry out manual switching to each parallelly connected control flap on the oil circuit again, can accomplish the conversion between the activestandby hydraulic pressure station, and put into use immediately, thereby the stability and the work efficiency of main lifting machine operation have been improved greatly, and easy and simple to handle, therefore, the clothes hanger is strong in practicability, and simultaneously, because oil pump motor switch, solenoid valve switch and cable etc. are concentrated and are arranged, thereby make electrical system comparatively simple, the daily maintenance work load of equipment is reduced by a wide margin, make the investigation treatment work of electrical fault more simple and convenient.
2. Through pulling portion, driving piece and the cooperation of cleaning the piece, can open and close the operation at the chamber door, the back-and-forth movement of accessible drive rack drives the positive and negative rotation of gear, then through the positive and negative rotation of vertical pivot for the brush hair cleans the operation to the radiating hole department of box right-hand member face after rotatory, cleans the dust, thereby the phenomenon that the louvre of box right-hand member face was blockked up by the dust has effectively been avoided, and then the ventilation effect that can not make the louvre receives the influence, thereby box inside electronic component's life has been improved.
Drawings
Fig. 1 is a first view structure diagram of the present invention.
Fig. 2 is a schematic diagram of a second viewing angle structure according to the present invention.
Fig. 3 is a schematic view of the present invention at a part enlarged in fig. 1.
Fig. 4 is a schematic view of the present invention at a part B in fig. 2.
Fig. 5 is a schematic view of the structure of the case of the present invention.
Fig. 6 is a schematic view of the driving member and pulling part structure of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a box body; 101. a box door; 102. a first gate voltmeter; 103. a second gate voltmeter; 104. a hydraulic station transfer switch; 105. a lubrication station transfer switch; 106. a guide rail; 107. a relay; 108. a terminal; 2. a cleaning member; 201. a vertical rotating shaft; 202. a gear; 203. brushing; 3. a drive member; 301. a drive rack; 302. a slide cylinder; 303. a first pull cord; 4. a pulling part; 401. contraband-shaped fixing plates; 402. a support guide rod; 403. a slider; 404. a second draw cord.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 6:
the utility model provides a hydraulic conversion centralized control device for a coal mine main elevator, which comprises a box body 1; the right end face of the box body 1 is provided with heat dissipation holes, and the right end face of the box body 1 is rotatably connected with four cleaning pieces 2 at the heat dissipation holes; a driving piece 3 is arranged on the upper part of the right end face of the box body 1, and a pulling part 4 is arranged on the upper part of the rear side of the box body 1; the front side of the box body 1 is rotatably connected with a box door 101 through a rotating shaft, a first gate voltmeter 102 and a second gate voltmeter 103 are mounted on the upper portion of the box door 101, and the first gate voltmeter 102 and the second gate voltmeter 103 respectively display gate voltage values of the main hydraulic station and the standby hydraulic station and serve as monitoring reference values for gate voltage display on a digital display meter of a winch house operating platform;
a hydraulic station change-over switch 104 and a lubricating station change-over switch 105 are installed on the lower portion of the box door 101, a guide rail 106 is installed at the upper end of the rear side wall inside the box door 101, six relays 107 are installed on the guide rail 106, the types of the relays 107 are Siemens 3TH series intermediate relays, the six relays 107 are divided into two groups, two hydraulic stations are respectively controlled, and each group is provided with three relays 107;
a terminal 108 is arranged at the lower end of the rear side wall in the box door 101; the hydraulic station change-over switch 104 and the lubrication station change-over switch 105 are distributed on the box door 101 in a bilateral symmetry manner, the hydraulic station change-over switch 104 and the lubrication station change-over switch 105 are electrically connected with the relay 107, and through the arrangement of the hydraulic station change-over switch 104, when the main and standby hydraulic stations are switched over, the switching between the main and standby hydraulic stations can be completed only by manually switching each parallel control valve on an oil way after the hydraulic station change-over switch 104 is rotated, so that the efficiency is higher;
the hydraulic station change-over switch 104 is used for the change-over control of a hydraulic station oil pump motor and an electric control system, and the lubricating station change-over switch 105 is used for the change-over control of a lubricating oil pump motor.
Referring to fig. 3 and 6, the cleaning element 2 comprises a vertical rotating shaft 201, a gear 202 and bristles 203, the vertical rotating shaft 201 is rotatably connected to the right end surface of the box body 1 through a shaft sleeve, and the gear 202 is fixedly connected to the upper end of the vertical rotating shaft 201; bristles 203 are arranged outside the vertical rotating shaft 201; when vertical pivot 201 is in the rotating condition, brush hair 203 will contact with the radiating hole department of box 1 right-hand member face to can clean the operation to the radiating hole department of box 1 right-hand member face after brush hair 203 is rotatory, clean the dust.
Referring to fig. 1 and 6, the driving member 3 is a strip-shaped plate-shaped structure, a driving rack 301 is arranged on the left end face of the driving member 3, two sliding barrels 302 are arranged on the right end face of the driving member 3, and a transverse guide rod fixed on the right end face of the box body 1 is slidably connected inside each sliding barrel 302; the front end of the driving rack 301 is fixedly connected with a first pull rope 303, the other end of the first pull rope 303 is fixedly connected with the right side of the front end face of the box door 101, a first pulley is connected to the outer part of the first pull rope 303 in a sliding manner, and the first pulley is arranged on the upper part of the right side of the box body 1; the driving rack 301 is engaged with the gear 202, and when the driving rack 301 is in a forward and backward movement state, the gear 202 drives the vertical rotating shaft 201 to rotate, and through the forward and backward movement of the driving rack 301, the forward and backward movement of the driving rack 301 can drive the gear 202 to rotate forward and backward, so that the bristles 203 can be finally driven to rotate.
Referring to fig. 2 and 4, the pulling portion 4 includes an Contraband-shaped fixing plate 401, support guide rods 402, a sliding block 403 and a second pull rope 404, the Contraband-shaped fixing plate 401 is fixedly connected to the rear end face of the box body 1, two support guide rods 402 are arranged on the inner side of the Contraband-shaped fixing plate 401, the sliding block 403 is slidably connected to the outer portions of the two support guide rods 402, a second pull rope 404 is fixedly connected to one side face of the sliding block 403, a spring is sleeved on the outer portion of each support guide rod 402 on the right side of the sliding block 403, the other end of the second pull rope 404 is fixedly connected to the rear end of the driving rack 301, and a second pulley is slidably connected to the outer portion of the second pull rope 404 and mounted on the upper portion of the rear end face of the box body 1; when the door 101 is in the closed state, the driving rack 301 will be in the forward movement state, and the sliding block 403 will be in the rightward sliding state, and the spring outside each support guide rod 402 is in the compressed state, so that after the door 101 is opened, the driving rack 301 will lose the tension effect, so that the sliding block 403 loses the tension effect, and then the sliding block 403 starts to slide to the left side under the action of the spring outside the support guide rods 402, so that the driving rack 301 can be driven to move backward.
The specific use mode and function of the embodiment are as follows:
in the utility model, the control device is arranged between a main hydraulic station and a standby hydraulic station in a main elevator shaft tower hydraulic station chamber, two groups of relays 107 are controlled by a hydraulic station change-over switch 104 on a box door 101, and the hydraulic station change-over switch 104 is also responsible for controlling oil pump motor power supply main loops of the two hydraulic stations; in operation, after the hydraulic station change-over switch 104 is rotated, the power supply of the oil pump motor of the hydraulic station can be simultaneously disconnected, the power supply of the oil pump motor of the standby hydraulic station is connected, the control power supply of the pipeline electromagnetic valve of the current hydraulic station is disconnected, and the control power supply of the pipeline electromagnetic valve of the standby hydraulic station is connected; all the hydraulic control parts of the electric control systems such as the control loops for protecting the oil temperature and the oil level of the oil pressure, the input control loop of the proportional overflow valve, the first gate voltmeter 102, the second gate voltmeter 103 and the input control loop of the operating platform are uniform and switched; therefore, when the main and standby hydraulic stations are switched, the switching between the main and standby hydraulic stations can be completed only by manually switching each parallel control valve on the oil circuit after the hydraulic station change-over switch 104 is turned, and the main and standby hydraulic stations can be immediately put into use.
When the main and standby lubricating stations are switched, only the lubricating station change-over switch 105 needs to be rotated, so that the main loops of the two lubricating oil pump motors can be controlled, the lubricating station change-over work is completed, and the switching between the main and standby lubricating oil pump motors can be completed and immediately put into use after the lubricating station change-over switch 105 is rotated;
during the maintenance work, the maintainer firstly opens the box door 101, then the drive rack 301 loses the pulling force effect, thereby make the sliding block 403 lose the pulling force effect, then under the effect of the external spring of the support guide rod 402, make the sliding block 403 begin to slide to the left, then will drive the drive rack 301 through the second stay cord 404 and stimulate backward, drive the rack 301 and move the in-process backward, drive gear 202 and rotate, then drive the brush hair 203 through vertical pivot 201 and rotate, then when the box door 101 is closed, first stay cord 303 will drive the drive rack 301 and move forward, thereby drive gear 202 and rotate backward, then through the positive and negative rotation of vertical pivot 201, make brush hair 203 rotate the back and carry out the cleaning operation to the cooling hole department of box 1 right-hand member face, clean the dust.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. The utility model provides a hydraulic pressure conversion centralized control device for main elevator of coal mine which characterized in that includes: a box body (1); the right end face of the box body (1) is provided with heat dissipation holes, and four cleaning pieces (2) are rotatably connected to the right end face of the box body (1) at the heat dissipation holes; a driving piece (3) is installed on the upper portion of the right end face of the box body (1), and a pulling portion (4) is arranged on the upper portion of the rear side of the box body (1); the box body (1) front side is connected with chamber door (101) through the pivot rotation, and No. one floodgate voltmeter (102) and No. two floodgate voltmeter (103) are installed on chamber door (101) upper portion, and hydraulic pressure station change over switch (104) and lubrication station change over switch (105) are installed to chamber door (101) lower part, and guide rail (106) are installed to the inside rear side wall upper end of chamber door (101), and install six relays (107) on guide rail (106), and terminal (108) are installed to the inside rear side wall lower extreme of chamber door (101).
2. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 1, characterized in that: the cleaning piece (2) comprises a vertical rotating shaft (201), a gear (202) and bristles (203), the vertical rotating shaft (201) is rotatably connected to the right end face of the box body (1) through a shaft sleeve, and the gear (202) is fixedly connected to the upper end of the vertical rotating shaft (201); bristles (203) are arranged outside the vertical rotating shaft (201).
3. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 2, characterized in that: the driving part (3) is of a strip-shaped plate-shaped structure, a driving rack (301) is arranged on the left end face of the driving part (3), two sliding cylinders (302) are arranged on the right end face of the driving part (3), and a transverse guide rod fixed on the right end face of the box body (1) is connected inside each sliding cylinder (302) in a sliding mode; the front end of the driving rack (301) is fixedly connected with a first pull rope (303), the other end of the first pull rope (303) is fixedly connected with the right side of the front end face of the box door (101), a first pulley is connected to the outer portion of the first pull rope (303) in a sliding mode, and the first pulley is installed on the upper portion of the right side of the box body (1).
4. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 3, characterized in that: the driving rack (301) is meshed with the gear (202), and when the driving rack (301) is in a front-back moving state, the gear (202) drives the vertical rotating shaft (201) to rotate.
5. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 3, characterized in that: pulling portion (4) are including Contraband font fixed plate (401), support guide arm (402), sliding block (403) and second stay cord (404), Contraband font fixed plate (401) fixed connection is at box (1) rear end face, and Contraband font fixed plate (401) inboard is provided with two support guide arms (402), two support guide arm (402) outside sliding connection have sliding block (403), and sliding block (403) a side fixedly connected with second stay cord (404), every support guide arm (402) outside is located sliding block (403) right side and has all cup jointed the spring, second stay cord (404) other end and drive rack (301) rear end fixed connection, second stay cord (404) outside sliding connection has the second pulley, and the second pulley is installed on box (1) rear end face upper portion.
6. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 5, characterized in that: when the box door (101) is in a closed state, the driving rack (301) is in a forward moving state, the sliding block (403) is in a rightward sliding state, and the spring outside each support guide rod (402) is in a compressed state.
7. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 1, characterized in that: the hydraulic station change-over switch (104) and the lubricating station change-over switch (105) are distributed on the box door (101) in a bilateral symmetry mode, and the hydraulic station change-over switch (104) and the lubricating station change-over switch (105) are electrically connected with the relay (107).
8. The hydraulic pressure conversion centralized control device for the coal mine main elevator as claimed in claim 2, characterized in that: when the vertical rotating shaft (201) is in a rotating state, the bristles (203) are in contact with the radiating holes in the right end face of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123222870.8U CN216512228U (en) | 2021-12-21 | 2021-12-21 | Hydraulic conversion centralized control device for coal mine main elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123222870.8U CN216512228U (en) | 2021-12-21 | 2021-12-21 | Hydraulic conversion centralized control device for coal mine main elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216512228U true CN216512228U (en) | 2022-05-13 |
Family
ID=81501570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123222870.8U Expired - Fee Related CN216512228U (en) | 2021-12-21 | 2021-12-21 | Hydraulic conversion centralized control device for coal mine main elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216512228U (en) |
-
2021
- 2021-12-21 CN CN202123222870.8U patent/CN216512228U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216512228U (en) | Hydraulic conversion centralized control device for coal mine main elevator | |
| CN209675728U (en) | A kind of switchgear with detachable wiring groove | |
| CN207915444U (en) | A kind of switchgear house crusing robot digital instrument image capturing system | |
| CN213707595U (en) | Operation and maintenance integrated maintenance platform for transformer substation | |
| CN209526345U (en) | A kind of high and low voltage switchgear that intelligence is self-cleaning | |
| CN111668721B (en) | Join in marriage and become intelligent monitoring ware machine case | |
| CN114530770A (en) | High-medium voltage distribution cabinet compartment of security | |
| CN208142043U (en) | A kind of high-tension switch cabinet switch operation device | |
| CN209308622U (en) | A kind of electric sunshade window | |
| CN213125293U (en) | Switch cabinet with hoisting mechanism | |
| CN215402662U (en) | Crane remote controller convenient to maintain and overhaul | |
| CN212063069U (en) | Lifting device for switch cabinet | |
| CN214243596U (en) | Device for lifting electrical equipment | |
| CN219698265U (en) | Energy management terminal | |
| CN220027918U (en) | Integrated circular intelligent capacitor | |
| CN213990149U (en) | Indoor high-voltage grouping reactive power compensation device | |
| CN215452245U (en) | Switch cabinet with anti-interference electricity device | |
| CN217141371U (en) | Photovoltaic module belt cleaning device | |
| CN211509615U (en) | Transformer oil chromatographic control case circuit board | |
| CN221282848U (en) | Power supply switcher | |
| CN221305863U (en) | Station power transformation system based on new energy | |
| CN218788610U (en) | Switch board with pencil arrangement structure | |
| CN213212762U (en) | Self-cleaning switch cabinet | |
| CN114879024A (en) | Relay cleaning and overhauling system | |
| CN214542987U (en) | High-low voltage distribution box with self-cleaning function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |