CN114696242A - Oil well distribution box with anti-collision function - Google Patents
Oil well distribution box with anti-collision function Download PDFInfo
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- CN114696242A CN114696242A CN202210602752.XA CN202210602752A CN114696242A CN 114696242 A CN114696242 A CN 114696242A CN 202210602752 A CN202210602752 A CN 202210602752A CN 114696242 A CN114696242 A CN 114696242A
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- plate
- supporting
- distribution box
- sliding
- guide rail
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Details Of Gearings (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses an oil well distribution box with an anti-collision function, which relates to the technical field of power distribution and comprises a distribution box, wherein the distribution box comprises a protective shell and a transverse guide rail, the transverse guide rail is arranged on the side wall of the protective shell, and the distribution box also comprises a bearing part and a supporting component; the bearing part comprises a bearing plate and a first sliding plate, the bearing plate is connected to the side wall of the protective shell in a sliding mode through the first sliding plate, and the supporting assembly comprises a traction part, a transmission part and a first supporting part; the traction part is connected with the first supporting part through the transmission part, the transmission part and the first supporting part are both installed on the transverse guide rail, the traction part comprises a reset spring and a sliding block, the reset spring and the transmission part are respectively connected to one side of the sliding block, the second through hole is formed in the surface of the first sliding plate, the sliding block is located below the first sliding plate and far away from the position of the second through hole, and the anti-collision device has the advantage of being good in anti-collision effect.
Description
Technical Field
The invention relates to the technical field of power distribution, in particular to an oil well distribution box with an anti-collision function.
Background
When transport vehicles or other mechanical equipment near an oil well pass through an oil well distribution box, a phenomenon of impacting the distribution box due to weather reasons or mechanical faults or misoperation can occur.
The existing oil well distribution box generally has the advantages that a protective net is arranged or the thickness of a distribution box shell is increased or a high-strength material is selected to improve the anti-collision effect, but the anti-collision effect cannot be well improved by the above modes.
Disclosure of Invention
The invention aims to provide an oil well distribution box with an anti-collision function, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an oil well distribution box with an anti-impact function comprises a distribution box, wherein the distribution box comprises a protective shell and a transverse guide rail, the transverse guide rail is arranged on the side wall of the protective shell, and the distribution box also comprises a bearing part and a supporting assembly;
the pressure bearing part comprises a pressure bearing plate and a first sliding plate, and the pressure bearing plate is connected to the side wall of the protective shell in a sliding manner through the first sliding plate;
the supporting component comprises a traction part, a transmission part and a first supporting part; the traction part is connected with the first supporting part through the transmission part, the transmission part and the first supporting part are both installed on the transverse guide rail, the traction part comprises a reset spring and a sliding block, the reset spring and the transmission part are respectively connected to one side of the sliding block, the second through hole is formed in the surface of the first sliding plate, and the sliding block is located below the first sliding plate and far away from the position of the second through hole.
As a further scheme of the invention: the third through-hole that communicates with the second through-hole is still seted up on first slide surface, the activity cover is equipped with first buffer spring on the first slide, when the bearing plate received the striking to order about the second through-hole on the first slide and removed directly over the slider, reset spring's elasticity is used for driving slider rebound, and the slider of rebound passes through the direction removal that transmission portion drove first supporting part towards being close to protective housing.
As a still further scheme of the invention: traction portion still includes longitudinal rail and haulage rope, longitudinal rail fixed connection is at protective housing lateral wall, the one end of keeping away from the slider on the reset spring is connected in longitudinal rail's top, and reset spring runs through second through-hole or third through-hole, slider sliding connection is in longitudinal rail, first through-hole has all been seted up to protective housing and longitudinal rail lateral wall, first slide sliding connection is in first through-hole.
As a still further scheme of the invention: the transmission part comprises a transmission gear and a winding wheel, the transmission gear is connected with the winding wheel through a rotating shaft, the rotating shaft is installed on the transverse guide rail, and one end, far away from the sliding block, of the traction rope is wound on the winding wheel.
As a still further scheme of the invention: first supporting part includes first backup pad and rack plate, the rack plate is connected in first backup pad, first slide still runs through first backup pad, drive gear is connected with the meshing of rack plate, the equal sliding connection of first backup pad and rack plate is on transverse guide, the one side that is close to protective housing in the first backup pad still is provided with a plurality of lug.
As a still further scheme of the invention: the supporting component further comprises a second supporting part located above the first supporting plate, a cavity is arranged above the first supporting plate, the second supporting part comprises a second supporting plate, a second sliding plate and a second buffer spring, the second sliding plate is connected in the cavity in a sliding mode, the second supporting plate is installed on the second sliding plate, and the second supporting plate is further in contact connection with the upper portion of the protective shell.
As a still further scheme of the invention: the distribution box further comprises a base and an inclined seat, the protective shell is installed on the base, the inclined seat is installed below the protective shell, and the first supporting plate is connected to the surface of the inclined seat in a sliding mode below the first supporting plate.
Compared with the prior art, the invention has the technical effects that: the impact that the bearing plate received can turn into first backup pad through reset spring, haulage rope, take-up pulley, drive gear and rack board fast and to protective housing's reverse bracing power, possesses the effectual characteristics of anticollision.
Drawings
Fig. 1 is a schematic structural diagram of an oil well distribution box with an anti-collision function according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a distribution box according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a pressure bearing portion according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a support assembly according to an embodiment of the invention.
FIG. 5 is a first partial perspective view of a bearing portion in an embodiment of the present invention.
FIG. 6 is a second partial perspective view of the bearing portion in the embodiment of the present invention.
Fig. 7 is a partial enlarged view of a in fig. 1 according to the present invention.
Fig. 8 is a partial enlarged view of b of fig. 1 according to the present invention.
Fig. 9 is a partial enlarged view of c of fig. 1 according to the present invention.
In the figure: 1-a distribution box, 11-a protective shell, 12-a base, 13-a transverse guide rail, 14-a first through hole, 15-an inclined seat, 2-a bearing part, 21-a bearing plate, 22-a first sliding plate, 221-a second through hole, 222-a third through hole, 23-a first buffer spring, 3-a support component, 31-a traction part and 311-a longitudinal guide rail, 312-a return spring, 313-a slide block, 314-a traction rope, 32-a transmission part, 321-a transmission gear, 322-a winding wheel, 33-a first supporting part, 331-a first supporting plate, 3311-a cavity, 332-a rack plate, 333-a lug, 34-a second supporting part, 341-a second supporting plate, 342-a second sliding plate and 343-a second buffer spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 9, the embodiment provides an oil well distribution box with an anti-collision function, including a distribution box 1, where the distribution box 1 includes a protective housing 11 and a transverse rail 13, the transverse rail 13 is installed on a side wall of the protective housing 11, and further includes a bearing portion 2 and a support assembly 3;
the bearing part 2 comprises a bearing plate 21 and a first sliding plate 22, and the bearing plate 21 is connected to the side wall of the protective shell 11 in a sliding manner through the first sliding plate 22;
the support assembly 3 comprises a traction part 31, a transmission part 32 and a first support part 33; the traction part 31 is connected with the first supporting part 33 through the transmission part 32, the transmission part 32 and the first supporting part 33 are both installed on the transverse guide rail 13, the traction part 31 comprises a return spring 312 and a sliding block 313, the return spring 312 and the transmission part 32 are respectively connected to one side of the sliding block 313, the second through hole 221 is formed in the surface of the first sliding plate 22, and the sliding block 313 is located below the first sliding plate 22 and far away from the second through hole 221.
Referring to fig. 1 to 6, as an embodiment of the present invention, a third through hole 222 communicated with the second through hole 221 is further formed in the surface of the first sliding plate 22, a first buffer spring 23 is movably sleeved on the first sliding plate 22, when the pressure-bearing plate 21 is impacted to drive the second through hole 221 on the first sliding plate 22 to move to a position right above the sliding block 313, the elastic force of the return spring 312 is used to drive the sliding block 313 to move upward, and the sliding block 313 moving upward drives the first supporting portion 33 to move toward a direction close to the protective housing 11 through the transmission portion 32.
In the above scheme, when a transport vehicle or other mechanical equipment near an oil well strikes the bearing plate 21 on one side of the distribution box 1, firstly, the elastic deformation of the first buffer spring 23 cooperates with the horizontal displacement of the first sliding plate 22 to play a certain buffering role, so that the protection shell 11 can be prevented from being damaged at the first time, in an initial state, the sliding block 313 is located below the first sliding plate 22, the return spring 312 penetrates through the third through hole 222, when the striking force is large, the first buffer spring 23 is compressed to the utmost, and at this time, the second through hole 221 on the first sliding plate 22 moves to the position right above the sliding block 313.
Referring to fig. 3 to 8, as an embodiment of the present invention, the traction portion 31 further includes a longitudinal guide rail 311 and a traction rope 314, the longitudinal guide rail 311 is fixedly connected to a side wall of the protective housing 11, one end of the return spring 312, which is far away from the sliding block 313, is connected above the longitudinal guide rail 311, the return spring 312 penetrates through the second through hole 221 or the third through hole 222, the sliding block 313 is slidably connected in the longitudinal guide rail 311, both the protective housing 11 and the side wall of the longitudinal guide rail 311 are provided with the first through hole 14, and the first sliding plate 22 is slidably connected in the first through hole 14.
Referring to fig. 3 to 8, as an embodiment of the present invention, the transmission part 32 includes a transmission gear 321 and a winding wheel 322, the transmission gear 321 is connected to the winding wheel 322 through a rotation shaft, the rotation shaft is installed on the transverse guide rail 13, and one end of the traction rope 314 away from the slider 313 is wound on the winding wheel 322.
Referring to fig. 1 to 4, as an embodiment of the present invention, the first supporting portion 33 includes a first supporting plate 331 and a rack plate 332, the rack plate 332 is connected to the first supporting plate 331, the first sliding plate 22 further penetrates the first supporting plate 331, the transmission gear 321 is engaged with the rack plate 332, the first supporting plate 331 and the rack plate 332 are both slidably connected to the transverse rail 13, a plurality of protrusions 333 are further disposed on one side of the first supporting plate 331 close to the protective housing 11, and the plurality of protrusions 333 enhance the strength of the first supporting plate 331.
In the above scheme, when the impact force is large, the first buffer spring 23 is compressed to the maximum extent, and the second through hole 221 on the first sliding plate 22 moves to a position right above the sliding block 313, the elastic deformation of the return spring 312 can drive the sliding block 313 to move upward through the second through hole 221, the upward moving sliding block 313 drives the winding wheel 322 and the transmission gear 321 to rotate through the traction rope 314, the rotating transmission gear 321 is engaged with the rack plate 332 to drive the first supporting plate 331 to move toward the protective housing 11 or in the direction of being impacted, when the pressure-bearing plate 21 just impacts the outside of the protective housing 11, the first supporting plate 331 just presses against the inner wall of the protective housing 11, and the impact force applied to the pressure-bearing plate 21 can be quickly converted into the reverse supporting force of the first supporting plate 331 on the protective housing 11 through the return spring 312, the traction rope 314, the winding wheel 322, the transmission gear 321 and the rack plate 332, thus, the risk of deformation of the shield case 11 due to an external impact is greatly reduced, and the length of the rack plate 332 satisfies the following conditions: when the first support plate 331 is moved to a position where it is attached to the shield case 11, the rack plate 332 is still engaged with the transmission gear 321.
Referring to fig. 8, as an embodiment of the present invention, the supporting component 3 further includes a second supporting portion 34 located above the first supporting plate 331, a cavity 3311 is disposed above the first supporting plate 331, the second supporting portion 34 includes a second supporting plate 341, a second sliding plate 342 and a second buffer spring 343, the second sliding plate 342 is slidably connected in the cavity 3311, the second supporting plate 341 is mounted on the second sliding plate 342, and the second supporting plate 341 is further connected above the protective housing 11 in a contact manner.
Referring to fig. 1 and fig. 9, as an embodiment of the present invention, the distribution box 1 further includes a base 12 and an inclined seat 15, the protective housing 11 is mounted on the base 12, the inclined seat 15 is mounted below the protective housing 11, and the lower portion of the first support plate 331 is slidably connected to the surface of the inclined seat 15.
In the above scheme, when the transport vehicle loaded with goods hits the side wall of the protection housing 11, due to the design of the inclined surface above the inclined seat 15, the lower part of the first supporting plate 331 can move along the inclined surface above the inclined seat 15, when the first supporting plate 331 moves along the inclined seat 15 towards the hit position, the second supporting part 34 can not only move towards the hit position, but also move towards the top of the protection housing 11, the second supporting part 34 can upwards support the protection housing 11 through the second supporting plate 341 in the moving process, the buffering effect of the second buffer spring 343 is matched with the supporting effect of the second supporting plate 341, and the goods dropped on the vehicle can be effectively prevented from damaging the protection distribution box housing 1 when hitting the upper part of the protection distribution box housing 11.
It should be noted that, after the distribution box 1 is impacted, first, the transmission gear 321 and the winding wheel 322 are rotated by using a tool (for example, a pneumatic wrench, etc.), the rotating transmission gear 321 can reset the first supporting plate 331 and the second supporting plate 341, the rotating winding wheel 322 can reset the sliding block 313 by winding the traction rope 314, then, the bearing plate 21 is reset by using a traction device (for example, a hydraulic support rod, etc.), at this time, the sliding block 313 is located below the bearing plate 21, and the position of the sliding block 313 can be fixed by the limiting function of the bearing plate 21, so that the supporting component 3 can be reset, and the distribution box 1 can cope with the next impact.
The working principle is as follows: when a transport vehicle or other mechanical equipment near an oil well strikes the bearing plate 21 on one side of the distribution box 1, firstly, the elastic deformation of the first buffer spring 23 is matched with the horizontal displacement of the first sliding plate 22 to play a certain buffering role, so that the protection shell 11 can be prevented from being damaged at the first time, when the striking force is large, the first buffer spring 23 is compressed to the utmost, and when the second through hole 221 on the first sliding plate 22 moves to be right above the sliding block 313, the elastic deformation of the return spring 312 can drive the sliding block 313 to pass through the second through hole 221 to move upwards, the upwards moving sliding block 313 drives the winding wheel 322 and the transmission gear 321 to rotate through the traction rope 314, the rotating transmission gear 321 is meshed with the rack plate 332 to drive the first supporting plate 331 to move towards the direction close to the protection shell 11 or to be struck, when the bearing plate 21 just strikes the outer side of the protection shell 11, the first supporting plate 331 is just pressed against the inner wall of the protection housing 11, and the impact force applied to the bearing plate 21 can be quickly converted into the reverse supporting force of the first supporting plate 331 on the protection housing 11 through the return spring 312, the traction rope 314, the winding wheel 322, the transmission gear 321 and the rack plate 332, so that the risk of deformation of the protection housing 11 due to impact of external force can be greatly reduced.
In summary, the impact force applied to the pressure bearing plate 21 can be quickly converted into the reverse supporting force of the first supporting plate 331 on the protective housing 11 through the return spring 312, the traction rope 314, the winding wheel 322, the transmission gear 321 and the rack plate 332, and the anti-collision device has the characteristic of good anti-collision effect.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various modifications, improvements and substitutions can be made without departing from the spirit of the invention, and all of them belong to the protection scope of the technical solution.
Claims (7)
1. An oil well distribution box with an anti-impact function comprises a distribution box, wherein the distribution box comprises a protective shell and a transverse guide rail, the transverse guide rail is arranged on the side wall of the protective shell, and the distribution box is characterized by further comprising a bearing part and a supporting assembly;
the pressure bearing part comprises a pressure bearing plate and a first sliding plate, and the pressure bearing plate is connected to the side wall of the protective shell in a sliding manner through the first sliding plate;
the supporting component comprises a traction part, a transmission part and a first supporting part; the traction part is connected with the first supporting part through the transmission part, the transmission part and the first supporting part are both installed on the transverse guide rail, the traction part comprises a reset spring and a sliding block, the reset spring and the transmission part are respectively connected to one side of the sliding block, the second through hole is formed in the surface of the first sliding plate, and the sliding block is located below the first sliding plate and far away from the position of the second through hole.
2. The distribution box for oil wells with an impact resistance function according to claim 1, wherein a third through hole communicated with the second through hole is further formed in the surface of the first sliding plate, a first buffer spring is movably sleeved on the first sliding plate, when the bearing plate is impacted to drive the second through hole in the first sliding plate to move right above the sliding block, the elastic force of the reset spring is used for driving the sliding block to move upwards, and the upwards-moving sliding block drives the first supporting portion to move towards a direction close to the protective shell through the transmission portion.
3. The distribution box for oil wells with the function of impact resistance according to claim 2, wherein the traction part further comprises a longitudinal guide rail and a traction rope, the longitudinal guide rail is fixedly connected to the side wall of the protective shell, one end of the return spring, which is far away from the sliding block, is connected above the longitudinal guide rail, the return spring penetrates through the second through hole or the third through hole, the sliding block is slidably connected in the longitudinal guide rail, the protective shell and the side wall of the longitudinal guide rail are both provided with first through holes, and the first sliding plate is slidably connected in the first through holes.
4. The distribution box for oil wells with the function of impact resistance as claimed in claim 3, wherein the transmission part comprises a transmission gear and a winding wheel, the transmission gear is connected with the winding wheel through a rotating shaft, the rotating shaft is installed on the transverse guide rail, and one end of the traction rope, which is far away from the sliding block, is wound on the winding wheel.
5. The oil well distribution box with the impact resistance function according to claim 4, wherein the first supporting portion comprises a first supporting plate and a rack plate, the rack plate is connected to the first supporting plate, the first sliding plate further penetrates through the first supporting plate, the transmission gear is meshed with the rack plate, the first supporting plate and the rack plate are both slidably connected to the transverse guide rail, and a plurality of protruding blocks are further arranged on one side, close to the protective shell, of the first supporting plate.
6. The distribution box for oil wells with anti-impact function according to claim 5, wherein said supporting component further comprises a second supporting portion located above the first supporting plate, a cavity is disposed above the first supporting plate, said second supporting portion comprises a second supporting plate, a second sliding plate and a second buffer spring, said second sliding plate is slidably connected in the cavity, said second supporting plate is mounted on the second sliding plate, and said second supporting plate is further connected with the upper portion of the protective housing in a contact manner.
7. The distribution box for oil wells with the function of impact resistance as claimed in claim 6, further comprising a base and an inclined seat, wherein the protective shell is mounted on the base, the inclined seat is mounted below the protective shell, and the first support plate is slidably connected to the surface of the inclined seat below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210602752.XA CN114696242B (en) | 2022-05-31 | 2022-05-31 | Oil well distribution box with anti-collision function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210602752.XA CN114696242B (en) | 2022-05-31 | 2022-05-31 | Oil well distribution box with anti-collision function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114696242A true CN114696242A (en) | 2022-07-01 |
| CN114696242B CN114696242B (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210602752.XA Active CN114696242B (en) | 2022-05-31 | 2022-05-31 | Oil well distribution box with anti-collision function |
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| CN115824341A (en) * | 2023-02-27 | 2023-03-21 | 克拉玛依市富城天然气有限责任公司 | Natural gas metering device |
| CN116313397A (en) * | 2023-05-17 | 2023-06-23 | 国网山东省电力公司德州市陵城区供电公司 | Transformer supporting mechanism for power installation |
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| CN216145957U (en) * | 2021-04-01 | 2022-03-29 | 天津鑫昊达科技有限公司 | Distribution box with good protection effect |
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| CN108448440A (en) * | 2018-05-19 | 2018-08-24 | 芜湖市晨曦新型建材科技有限公司 | A kind of box type switchgear having anti-collision |
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| CN115824341A (en) * | 2023-02-27 | 2023-03-21 | 克拉玛依市富城天然气有限责任公司 | Natural gas metering device |
| CN116313397A (en) * | 2023-05-17 | 2023-06-23 | 国网山东省电力公司德州市陵城区供电公司 | Transformer supporting mechanism for power installation |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114696242B (en) | 2022-08-16 |
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