CN112512194B - Anti-static device for coal mine electric automation equipment - Google Patents
Anti-static device for coal mine electric automation equipment Download PDFInfo
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- CN112512194B CN112512194B CN202011433996.7A CN202011433996A CN112512194B CN 112512194 B CN112512194 B CN 112512194B CN 202011433996 A CN202011433996 A CN 202011433996A CN 112512194 B CN112512194 B CN 112512194B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F1/00—Preventing the formation of electrostatic charges
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- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20345—Sprayers; Atomizers
Abstract
The invention discloses an anti-static device for coal mine electric automation equipment, which comprises a base, wherein an installation plate is arranged above the base, four reset guide pieces are arranged between the installation plate and the base, two fixed blocks which are distributed in a rectangular shape are fixedly connected to the base, a positioning rod is fixedly connected between the two fixed blocks, two wedge-shaped plates are connected to the base in a sliding mode, the positioning rod penetrates through the two wedge-shaped plates and is connected with the two wedge-shaped plates in a sliding mode, and first springs are fixedly connected to the two wedge-shaped plates. The automatic clamping device is reasonable in structure, can automatically clamp the automatic equipment by depending on the gravity of the automatic equipment, does not need to be installed by an installer through other connecting pieces, reduces the labor amount of workers, brings convenience to the workers, can effectively and efficiently radiate the automatic equipment, and enables the periphery of the automatic equipment not to be easily filled with dust and further not to be easily subjected to static electricity generation.
Description
Technical Field
The invention relates to the technical field of anti-static devices of coal mine electrical automation equipment, in particular to an anti-static device for coal mine electrical automation equipment.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal layer is far away from the ground surface, a tunnel is usually dug to the underground to mine the coal, which is a mineworker coal mine. When the coal seam is very close to the earth's surface, the earth's surface layer is usually directly stripped to excavate coal, which is an open pit coal mine. Most coal mines in China belong to underground coal mines. Coal mines encompass a large area above and below ground and related facilities. Coal mines are reasonable spaces excavated by humans when excavating geological layers rich in coal, and generally comprise roadways, wells, excavation surfaces and the like; coal is the most predominant solid fuel, one of the combustible organic rocks. The method is characterized in that luxuriant plants growing in a certain geological age are gradually stacked into a thick layer in a proper geological environment and buried under the water bottom or in silt, and the thick layer is formed through the natural coalification effect of the long geological age.
At present, most of the anti-static devices for the coal mine electrical automation equipment are difficult to discharge heat generated by the electrical automation equipment during working in time, so that the service life of the equipment is shortened, the anti-static devices are inconvenient to install together with the electrical automation equipment, and inconvenience is brought to installers, so that the anti-static devices for the coal mine electrical automation equipment are designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an anti-static device for coal mine electrical automation equipment, which can automatically clamp the automation equipment by means of the gravity of the automation equipment without installation of an installer through other connecting pieces, reduces the labor amount of workers, brings convenience to the workers, can effectively and efficiently dissipate heat of the automation equipment, and prevents dust from diffusing around the automation equipment and further prevents static electricity from being generated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a colliery electrical automation equipment is with preventing static device, the on-line screen storage device comprises a base, the top of base is equipped with the mounting panel, be equipped with four reset guide between mounting panel and the base, fixedly connected with is two fixed blocks of rectangle distribution on the base, two fixedly connected with locating levers between the fixed block, sliding connection has two wedges on the base, the locating lever runs through two wedges and rather than sliding connection, two equal first spring of fixedly connected with on the wedge, two the other end of first spring respectively with relative fixed block fixed connection, two first spring all overlaps on the locating lever, run through on the mounting panel and be equipped with two wedges, two the wedge runs through relative wedge respectively and rather than cooperation sliding connection, two arc, two on the mounting panel the arc opposite face is equipped with prevents static, two the upper end of arc all is equipped with the arc, two the one side that the arc is relative all runs through and is equipped with the communicating a plurality of logical grooves of arc, two the common fixedly connected with annular frame in upper end of arc, annular frame is linked together with two arc supports, the top of fixed connection is equipped with the cross shower nozzle, four connecting pipes below the cross and cross shower nozzle, the cross shower nozzle and four cross pipe mechanism lower extremes.
Preferably, the guide that resets is including fixing the well cavity pole on the base, well cavity is equipped with in the well cavity pole, well cavity sliding connection has the sliding block, fixedly connected with second spring between the interior bottom of sliding block and well cavity, the upper end fixedly connected with guide bar of sliding block, the guide bar runs through well cavity pole and rather than sliding connection, the upper end of guide bar and the bottom fixed connection of mounting panel.
Preferably, the anti-static part is an anti-static sponge, and the anti-static sponge is connected with the wedge-shaped plate through a screw.
Preferably, the arc-shaped plate vertically coincides with the circle center of the annular frame.
Preferably, the spray heads are all atomization spray heads, and the spray heads are all located in the annular frame.
Preferably, the support is an L-shaped plate, and the support is connected with the upper end of the mounting plate through a bolt.
Preferably, pumping mechanism is including installing the water pump on the support, the inlet tube is installed to the end of intaking of water pump, the inlet tube runs through the arc and extends to in the arc, install the dust cover on the inlet tube, the outlet pipe is installed to the play water end of water pump, the outlet pipe runs through the upper end setting of support, the nozzle stub is installed to the upper end of cross, the nozzle stub passes through the sleeve pipe and is connected with the outlet pipe rotation, be equipped with actuating mechanism between nozzle stub and the outlet pipe.
Preferably, the driving mechanism comprises a first cross rod fixed on the inner wall of the water outlet pipe, the bottom of the first cross rod is rotatably connected with a short rod, the inner wall of the short rod is fixedly connected with a second cross rod, the short rod penetrates through the second cross rod and is fixedly connected with the second cross rod, and the short rod is fixedly connected with a plurality of propellers.
Compared with the prior art, the invention has the following beneficial effects:
1. place automation equipment on the mounting panel, because automation equipment's gravity, then the mounting panel moves down, under the spacing of wedge groove, can realize two wedge plate relative movement, so can carry out the centre gripping to automation equipment through two wedge plates, need not to carry out spacing fixed through other connecting pieces to automation equipment, brings the convenience for the installer, reduces installer's the amount of labour.
2. When the water pump works, clear water in the arc-shaped groove can be pumped to the short pipes through the water inlet pipe and the water outlet pipe and flows into the cross pipe through the short pipes, when the clear water passes through the propeller, the propeller rotates to drive the second cross rod and the short pipes to rotate, so that the cross pipe and the plurality of spray heads rotate, atomized water sprayed out of the spray heads can adsorb dust in the air, a humidifying effect is achieved, and static electricity is not easily generated; atomized water and dust fall into the annular frame and the arc-shaped groove again, so that the water can be recycled, and water resources are saved.
3. Meanwhile, the second transverse rod, the short pipe and the spray head rotate, the sprayed atomized water can float, the flowing of the ambient air can be driven, the heat on the automatic equipment can enter the arc-shaped groove through the through groove, the heat exchange with the atomized water is carried out, the automatic equipment can be effectively cooled, and meanwhile, the noise generated when the automatic equipment works can be reduced.
In conclusion, the automatic clamping device is reasonable in structure, can automatically clamp the automatic equipment by means of the gravity of the automatic equipment, does not need to be installed by an installer through other connecting pieces, reduces the labor amount of workers, brings convenience to the workers, can effectively and efficiently radiate the automatic equipment, and prevents dust from diffusing around the automatic equipment and static electricity from being generated.
Drawings
Fig. 1 is a schematic structural diagram of an antistatic device for coal mine electric automation equipment according to the present invention;
FIG. 2 is a cross-sectional view of a reset guide in an anti-static device for electrical automation equipment in a coal mine according to the present invention;
fig. 3 is a schematic structural diagram of a position a of an antistatic device for coal mine electrical automation equipment according to the present invention;
fig. 4 is a top view of a cross pipe in the anti-static device for the coal mine electric automation equipment according to the present invention;
fig. 5 is a top view of an annular frame in an antistatic device for an electrical automation apparatus in a coal mine according to the present invention.
In the figure: the anti-static water pump comprises a base 1, a mounting plate 2, a fixing block 3, a positioning rod 4, a wedge-shaped plate 5, a first spring 6, an anti-static sponge 7, a reset guide piece 8, a wedge-shaped groove 9, a support 10, a water pump 11, an arc-shaped plate 12, an arc-shaped groove 13, a water inlet pipe 14, a dust cover 15, a through groove 16, an annular frame 17, a water outlet pipe 18, a cross pipe 19, a connecting pipe 20, a spray head 21, a hollow cavity 22, a sliding block 23, a second spring 24, a guide rod 25, a sleeve 26, a first cross rod 27, a short rod 28, a second cross rod 29, a propeller 30, a short pipe 31 and a hollow rod 32.
Detailed Description
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.
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", "front", "rear", "both ends", "one end", "the other end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-5, an antistatic device for coal mine electric automation equipment comprises a base 1, a mounting plate 2 is arranged above the base 1, four reset guide members 8 are arranged between the mounting plate 2 and the base 1, each reset guide member 8 comprises a hollow rod 32 fixed on the base 1, a hollow cavity 22 is arranged in each hollow rod 32, a sliding block 23 is connected in each hollow cavity 22 in a sliding manner, a second spring 24 is fixedly connected between each sliding block 23 and the inner bottom of each hollow cavity 22, a guide rod 25 is fixedly connected to the upper end of each sliding block 23, each guide rod 25 penetrates through each hollow rod 32 and is connected with the corresponding hollow rod in a sliding manner, the upper end of each guide rod 25 is fixedly connected with the bottom of the mounting plate 2, the guide rods 25 can be reset through the second springs 24, and accordingly the mounting plate 2 can be reset.
Fixedly connected with is two fixed blocks 3 that the rectangle distributes on base 1, fixedly connected with locating lever 4 between two fixed blocks 3, sliding connection has two wedge plates 5 on base 1, locating lever 4 runs through two wedge plates 5 and rather than sliding connection, the first spring of equal fixedly connected with 6 on two wedge plates 5, the other end of two first springs 6 respectively with relative fixed block 3 fixed connection, two first springs 6 all overlap on locating lever 4, the effect of first spring 6 also plays the reset action, it produces the pulling force to wedge plate 5, thereby can realize resetting of wedge plate 5.
Run through on the mounting panel 2 and be equipped with two wedge grooves 9, two wedge boards 5 run through relative wedge groove 9 respectively and rather than cooperation sliding connection, so, mounting panel 2 downstream can realize two wedge boards 5 relative movement under the spacing of wedge groove 9 to can carry out the centre gripping to automation equipment.
The mounting plate 2 is fixedly connected with two arc-shaped plates 12, the opposite surfaces of the two arc-shaped plates 12 are provided with anti-static parts, the anti-static parts are anti-static sponges 7, and the anti-static sponges 7 are connected with the wedge-shaped plate 5 through screws; the upper ends of the two arc-shaped plates 12 are provided with arc-shaped grooves 13, and the two arc-shaped plates 12 can be communicated through a pipeline; the opposite sides of the two arc-shaped plates 12 are respectively provided with a plurality of through grooves 16 communicated with the arc-shaped grooves 13 in a penetrating way, the upper ends of the two arc-shaped plates 12 are fixedly connected with an annular frame 17 together, the annular frame 17 is communicated with the two arc-shaped grooves 13, and the circle centers of the arc-shaped plates 12 and the annular frame 17 are vertically coincided.
A support 10 is fixedly connected to the mounting plate 2, the support 10 is an L-shaped plate, and the support 10 is connected with the upper end of the mounting plate 2 through a bolt; the cross pipe 19 is arranged above the circle center of the annular frame 17, the four connecting pipes 20 are fixedly connected to the bottom of the cross pipe 19, the spray heads 21 are mounted at the lower ends of the four connecting pipes 20, the spray heads 21 are all atomizing spray heads, and the spray heads 21 are located in the annular frame 17.
A pumping mechanism is arranged between the cross pipe 19 and the support 10 and between the cross pipe 19 and one of the arc-shaped plates 12, the pumping mechanism comprises a water pump 11 installed on the support 10, a water inlet pipe 14 is installed at the water inlet end of the water pump 11, the water inlet pipe 14 penetrates through the arc-shaped plate 12 and extends into the arc-shaped groove 13, a dust cover 15 is installed on the water inlet pipe 14, a water outlet pipe 18 is installed at the water outlet end of the water pump 11, the water outlet pipe 18 penetrates through the upper end of the support 10 to be arranged, a short pipe 31 is installed at the upper end of the cross pipe 19, the short pipe 31 is rotatably connected with the water outlet pipe 18 through a sleeve 26, and the rotary connection position of the short pipe 31 and the sleeve 26 is arranged in a sealing mode.
A driving mechanism is arranged between the short pipe 31 and the water outlet pipe 18, the driving mechanism comprises a first cross rod 27 fixed on the inner wall of the water outlet pipe 18, the bottom of the first cross rod 27 is rotatably connected with a short rod 28, the inner wall of the short pipe 31 is fixedly connected with a second cross rod 29, the short rod 28 penetrates through the second cross rod 29 and is fixedly connected with the second cross rod 29, and a plurality of propellers 30 are fixedly connected on the short rod 28.
According to the automatic equipment clamping device, firstly, a worker places the automatic equipment on the mounting plate 2 through power equipment, due to the gravity of the automatic equipment, the mounting plate 2 moves downwards, the two wedge-shaped plates 5 can move relatively under the limiting of the wedge-shaped groove 9, so that the automatic equipment can be clamped through the two wedge-shaped plates 5, the automatic equipment does not need to be limited and fixed through other connecting pieces, convenience is brought to the installer, and the labor amount of the installer is reduced; at the moment, the anti-static sponge 7 is abutted against the outer wall of the automatic equipment, the anti-static sponge 7 is a dissipative material between a conductive material and an insulating material, and is made by adding a proper amount of conductive substances into plastic, so that the anti-static sponge 7 has an anti-static effect, and the anti-static sponge 7 is wrapped on the surface of the equipment to protect the equipment and prevent the surface of the equipment from generating static electricity;
after the automatic equipment is installed, a worker can start the water pump 11, the water pump 11 can pump clean water in the arc-shaped groove 13 to the short pipes 31 through the water inlet pipe 14 and the water outlet pipe 18 and flow into the cross pipe 19 through the short pipes 31, when the clean water passes through the screw propeller 30, the screw propeller 30 rotates and then drives the second cross rods 29 and the short pipes 31 to rotate, so that the cross pipe 19 and the plurality of spray heads 21 rotate, atomized water sprayed by the spray heads 21 can adsorb dust in air, a humidifying effect is achieved, and static electricity is not easy to generate; the atomized water and dust fall into the annular frame 17 and the arc-shaped groove 13 again, so that the water can be recycled and the water resource is saved;
meanwhile, the second cross rod 29, the short pipe 31 and the spray head 21 rotate, so that sprayed atomized water can wave, and ambient air can be driven to flow, heat on the automatic equipment can enter the arc-shaped groove 13 through the through groove 16, and the atomized water exchanges heat, so that the automatic equipment can be effectively cooled, and noise generated when the automatic equipment works can be reduced;
when dismantling automation equipment, through the jack with 2 jack-ups of mounting panel, under the effect of first spring 6, can realize that two wedge-shaped plates 5 remove mutually to can dismantle automation equipment.
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 as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The utility model provides a colliery electrical automation equipment is with preventing static device, includes base (1), its characterized in that, the top of base (1) is equipped with mounting panel (2), establish four leading parts (8) that reset between mounting panel (2) and base (1), fixedly connected with is two fixed blocks (3) that the rectangle distributes on base (1), two fixedly connected with locating lever (4) between fixed block (3), sliding connection has two wedge (5) on base (1), locating lever (4) run through two wedge (5) and rather than sliding connection, two equal fixedly connected with first spring (6) on wedge (5), two the other end of first spring (6) respectively with relative fixed block (3) fixed connection, two first spring (6) all overlap on locating lever (4), run through on mounting panel (2) and be equipped with two wedge (9), two wedge (5) run through relative wedge (9) respectively and rather than cooperation sliding connection, fixedly connected with two arc (12) on mounting panel (2), two equal communicating arc (12) of arc are equipped with two arc (12) and prevent the arc (12) and all through the arc (13) and pass through the arc (12) and the equal opposite face (13) and prevent the arc (13) and pass through the arc (12) and the arc and the equal arc (12) and the arc is equipped with one side) and two arc (13) and the arc The upper ends of the two arc-shaped plates (12) are fixedly connected with an annular frame (17) together, the annular frame (17) is communicated with the two arc-shaped grooves (13), the mounting plate (2) is fixedly connected with a support (10), a cross pipe (19) is arranged above the circle center of the annular frame (17), the bottom of the cross pipe (19) is fixedly connected with four connecting pipes (20), the lower ends of the four connecting pipes (20) are provided with spray heads (21), and a pumping mechanism is arranged between the cross pipe (19) and the support (10) and one of the arc-shaped plates (12); the reset guide piece (8) comprises a hollow rod (32) fixed on the base (1), a hollow cavity (22) is arranged in the hollow rod (32), a sliding block (23) is connected in the hollow cavity (22) in a sliding mode, a second spring (24) is fixedly connected between the sliding block (23) and the inner bottom of the hollow cavity (22), a guide rod (25) is fixedly connected to the upper end of the sliding block (23), the guide rod (25) penetrates through the hollow rod (32) and is connected with the hollow rod in a sliding mode, and the upper end of the guide rod (25) is fixedly connected with the bottom of the mounting plate (2); the pumping mechanism comprises a water pump (11) installed on a support (10), a water inlet pipe (14) is installed at the water inlet end of the water pump (11), the water inlet pipe (14) penetrates through an arc-shaped plate (12) and extends into an arc-shaped groove (13), a dust cover (15) is installed on the water inlet pipe (14), a water outlet pipe (18) is installed at the water outlet end of the water pump (11), the water outlet pipe (18) penetrates through the upper end of the support (10) to be arranged, a short pipe (31) is installed at the upper end of a cross pipe (19), the short pipe (31) is rotatably connected with the water outlet pipe (18) through a sleeve (26), and a driving mechanism is arranged between the short pipe (31) and the water outlet pipe (18); the driving mechanism comprises a first cross rod (27) fixed on the inner wall of the water outlet pipe (18), the bottom of the first cross rod (27) is rotatably connected with a short rod (28), the inner wall of the short pipe (31) is fixedly connected with a second cross rod (29), the short rod (28) penetrates through the second cross rod (29) and is fixedly connected with the second cross rod, and the short rod (28) is fixedly connected with a plurality of propellers (30).
2. The anti-static device for the coal mine electric automation equipment as claimed in claim 1, wherein the anti-static piece is an anti-static sponge (7), and the anti-static sponge (7) is connected with the wedge-shaped plate (5) through a screw.
3. The anti-static device for the coal mine electric automation equipment as set forth in claim 1, wherein the arc-shaped plate (12) vertically coincides with the circle center of the annular frame (17).
4. The anti-static device for the coal mine electric automation equipment as claimed in claim 1, characterized in that the spray heads (21) are all atomizing spray heads, and the spray heads (21) are all positioned in the annular frame (17).
5. The anti-static device for the coal mine electric automation equipment is characterized in that the support (10) is an L-shaped plate, and the support (10) is connected with the upper end of the mounting plate (2) through a bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011433996.7A CN112512194B (en) | 2020-12-10 | 2020-12-10 | Anti-static device for coal mine electric automation equipment |
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| CN202011433996.7A CN112512194B (en) | 2020-12-10 | 2020-12-10 | Anti-static device for coal mine electric automation equipment |
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| CN112512194A CN112512194A (en) | 2021-03-16 |
| CN112512194B true CN112512194B (en) | 2022-10-04 |
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| CN113878502B (en) * | 2021-07-12 | 2024-04-12 | 普菲乐机械科技(昆山)有限公司 | Liquid polishing machine with uniform removal quantity distribution and polishing process |
| CN114321582B (en) * | 2021-11-30 | 2024-04-02 | 中建八局第一建设有限公司 | Energy-saving and environment-friendly building electromechanical equipment installation fixing device |
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| CN209845418U (en) * | 2019-03-25 | 2019-12-24 | 谷立波 | Anti-static device for coal mine electrical automation equipment |
| CN209791156U (en) * | 2019-04-18 | 2019-12-17 | 李志恒 | Building engineering construction dust collector |
| CN211513913U (en) * | 2019-08-12 | 2020-09-18 | 金万科技（天津）有限公司 | Electric automatization dust collector |
| CN211190633U (en) * | 2019-08-21 | 2020-08-07 | 内蒙古龙泽节水灌溉科技有限公司 | 360-degree automatic rotating irrigation spray head |
| CN111390008A (en) * | 2020-04-10 | 2020-07-10 | 解瑞创 | Metal gasket stamping device for machining |
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| CN111615249A (en) * | 2020-06-04 | 2020-09-01 | 耿凤玲 | New forms of energy workshop is with preventing static device |
| CN111590355A (en) * | 2020-06-11 | 2020-08-28 | 中国十七冶集团有限公司 | Plate automatic clamping device for architectural decoration |
| CN211959642U (en) * | 2020-06-11 | 2020-11-17 | 王文波 | Anti-static device for coal mine electrical automation equipment |
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