Relay protection portable operation and maintenance method and device based on digital model

Abstract

The invention relates to the technical field of power system relay protection equipment, in particular to a relay protection portable operation and maintenance method and device based on a digital model, and the method comprises the steps: enabling an operation and maintenance main body to enter a protection state through overturning an overturning cover to a shielding state; when the overturning cover is in a shielding state, the operation and maintenance main body is cleaned; and the operation and maintenance main body enters a to-be-detected state by overturning the overturning cover to a non-shielding state. The device has the beneficial effects that through automatic shielding of the overturning cover, damage to the operation and maintenance body caused by external force is avoided, meanwhile, interference of dust and sticky matter to the interaction face of the operation and maintenance body is reduced, the operation and maintenance body is cleaned regularly through cooperation of the dust collector, the breathable belt and the flexible bristles, and the operation and maintenance efficiency is improved while the device is kept clean. And attachments are collected in a centralized mode, centralized cleaning is facilitated, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of operation and maintenance of relay protection equipment in power systems, and in particular to a portable operation and maintenance method and device for relay protection based on a digital model. Background Art

[0002] Relay protection devices play a detection and protection role in the power system. When electrical equipment in the power system, such as generators and transmission lines, or the power itself, fails and endangers the safe operation of the power system, it can promptly send a warning signal to the operating personnel on duty, or directly send a trip command to the controlled circuit breaker to terminate the operation of the equipment. However, when a power system fails, the staff needs more time to troubleshoot and repair it. In order to save the staff's working time and to troubleshoot the power system more quickly, a remote operation and maintenance device will be installed to troubleshoot and detect it.

[0003] In order to adapt to the needs of digital modeling, existing operation and maintenance devices will be equipped with information acquisition functions, or matched with relay equipment, and will be equipped with information readers and writers and QR code scanners to quickly complete the reading and input of information. However, in the process of transferring the operation and maintenance device, since the information reader and writer and the QR code scanner are placed on the surface of the installation body, scratches are prone to occur, causing damage to the interaction surface of the information reader and writer and the QR code scanner, which is not conducive to maintaining the normal performance of the information reader and writer and the QR code scanner. Summary of the invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a portable operation and maintenance method for relay protection based on a digital model, which can solve the problem that the interaction surface of the information reader and the QR code scanner is easily damaged during the transfer or cleaning of the operation and maintenance device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a portable operation and maintenance method for relay protection based on a digital model, which comprises turning a flip cover to a shielding state so that the operation and maintenance subject enters a protection state;

[0007] When the flip cover is in the shielding state, clean the operation and maintenance subject;

[0008] By flipping the flip cover to a non-blocking state, the operation and maintenance subject enters a state to be detected.

[0009] As a preferred solution of a portable operation and maintenance method for relay protection based on a digital model of the present invention, the flip cover shielding state includes that the flip cover completely covers the interaction surface of the operation and maintenance subject.

[0010] As a preferred solution of the portable operation and maintenance method of relay protection based on a digital model of the present invention, cleaning includes sweeping and vacuuming, and the interaction surface of the operation and maintenance subject is cleaned while the floating dust is adsorbed and recovered.

[0011] As a preferred solution of a portable operation and maintenance method for relay protection based on a digital model of the present invention, the state to be detected includes: the flip cover is flipped to the initial position, and the interactive surface of the operation and maintenance subject is uncovered.

[0012] In order to solve the above technical problems, the present invention also provides the following technical solutions: a portable operation and maintenance device for relay protection based on a digital model, comprising an operation and maintenance subject, including an RFID reader / writer, and an infrared two-dimensional code scanner;

[0013] The external unit includes a placement component arranged outside the operation and maintenance body, a flip component arranged on the surface of the placement component, and a driving component arranged between the placement component and the flip component;

[0014] The dust removal unit comprises a dust removal component arranged outside the flip component and a connecting component arranged outside the dust removal component.

[0015] As a preferred solution of a portable operation and maintenance device for relay protection based on a digital model of the present invention, the placement component includes a placement frame arranged on the outside of the operation and maintenance body, a limit plate arranged on the inside of the placement frame, an installation groove arranged on the inner edge of the placement frame, and a docking groove opened on the top of the placement frame.

[0016] As a preferred solution of a portable operation and maintenance device for relay protection based on a digital model of the present invention, the flip assembly includes a flip cover arranged on one side of the mounting frame, an air intake pipe rotatably arranged at one end of the inner side of the flip cover, an air intake pipe rotatably arranged at the other end of the inner side of the flip cover relative to the air intake pipe, a driving screw fixedly connected to the bottom of the flip cover, an arc rod fixedly connected to the driving screw, and a first support spring arranged on the outer side of the arc rod;

[0017] A threaded sleeve is arranged on the surface of the driving screw rod, the threaded sleeve is fixedly connected with the bottom of the flip cover, a linkage pin is sleeved on the surface of the arc tube, and the linkage pin is plugged with the threaded sleeve.

[0018] As a preferred solution of a portable operation and maintenance device for relay protection based on a digital model of the present invention, the driving assembly includes a motor fixedly connected to the mounting frame, a driving gear arranged at one end of the motor, and a follower gear meshing with the driving gear;

[0019] The follower gear is fixedly connected to the outer side of the driving screw.

[0020] As a preferred solution of the portable operation and maintenance device of relay protection based on the digital model of the present invention, the dust removal component includes two sets of synchronous belts arranged between the air inlet pipe and the air intake pipe, a breathable belt arranged between the synchronous belts, flexible bristles arranged on the outside of the breathable belts, two sets of sealing rails symmetrically arranged on the surfaces of the air inlet pipe and the air intake pipe, an impeller arranged on the inside of the air intake pipe, and a vacuum cleaner fixedly connected to one end of the air intake pipe.

[0021] As a preferred solution of the portable operation and maintenance device of relay protection based on the digital model of the present invention, the connecting component includes an air inlet port penetrating through the upper side of the limit plate, an air suction port penetrating through the lower side of the limit plate, two sets of docking holes arranged on the side wall of the flip cover, positioning rings respectively arranged on the inner walls of the air inlet pipe and the air suction pipe, a second support spring arranged on one side of the positioning ring, and docking tubes respectively slidably connected to the air inlet pipe and the air suction pipe.

[0022] Beneficial effects of the present invention: The present invention prevents external forces from damaging the operation and maintenance main body through automatic shielding of the flip cover, and at the same time reduces the interference of dust and sticky substances on the interaction surface of the operation and maintenance main body. The operation and maintenance main body is cleaned regularly by a vacuum cleaner, a breathable belt and flexible bristles. While keeping the equipment clean, the attached materials are collected in a centralized manner, which is convenient for centralized cleaning and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0024] Figure 1 The figure is a flow chart of a portable operation and maintenance method of relay protection based on a digital model.

[0025] Figure 2 This is an overall schematic diagram of the portable operation and maintenance device for relay protection based on a digital model.

[0026] Figure 3 This is a schematic diagram of the operation and maintenance body of the portable operation and maintenance device for relay protection based on the digital model.

[0027] Figure 4 This is a schematic diagram of the overall structure of the external unit and dust removal unit of the portable operation and maintenance device for relay protection based on the digital model.

[0028] Figure 5 It is a schematic diagram of the structure of part A from another perspective and a partial enlarged schematic diagram of some structures.

[0029] Figure 6 This is a partial schematic diagram of the dual-view structure of part B.

[0030] Figure 7 This is a schematic cross-sectional view of the local structure of part C. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 1 , which is the first embodiment of the present invention, provides a portable operation and maintenance method for relay protection based on a digital model, which can solve the problem that the interaction surface of the information reader and the two-dimensional code scanner is easily damaged during the transfer or cleaning of the operation and maintenance device.

[0036] Specifically, by flipping the flip cover to the shielding state, the operation and maintenance subject enters the protection state;

[0037] When the flip cover is in the shielding state, clean the operation and maintenance subject;

[0038] By flipping the flip cover to a non-blocking state, the operation and maintenance subject enters a state to be detected.

[0039] Furthermore, the flip cover shielding state includes that the flip cover completely covers the interaction surface of the operation and maintenance subject.

[0040] Furthermore, cleaning includes sweeping and vacuuming, which cleans the interaction surface of the operation and maintenance entity while also adsorbing and recovering floating dust.

[0041] Furthermore, the state to be detected includes that the flip cover is flipped to an initial position, and the interactive surface of the operation and maintenance subject is uncovered.

[0042] In summary, the present invention prevents external forces from damaging the operation and maintenance main body through the automatic shielding of the flip cover, while also reducing the interference of dust and sticky objects on the interaction surface of the operation and maintenance main body. The operation and maintenance main body is cleaned regularly by the cooperation of a vacuum cleaner, a breathable belt and flexible bristles. While keeping the equipment clean, the attached objects are collected in a centralized manner to facilitate centralized cleaning and improve cleaning efficiency.

[0043] Example 2

[0044] Reference Figure 2 to Figure 7 , which is the second embodiment of the present invention, provides a device for preventing corrosion of flue gas cooler heat exchange tubes, which can solve the problem that the interaction surface of the information reader and the two-dimensional code scanner is easily damaged during the transfer or cleaning of the operation and maintenance device.

[0045] Specifically, the operation and maintenance entity 100 includes an RFID reader 101 and an infrared two-dimensional code scanner 102;

[0046] The external unit 200 includes a placement component 201 disposed outside the operation and maintenance body 100, a flip component 202 disposed on the surface of the placement component 201, and a driving component 203 disposed between the placement component 201 and the flip component 202;

[0047] The dust removal unit 300 includes a dust removal component 301 disposed outside the flip component 202 and a connecting component 302 disposed outside the dust removal component 301 .

[0048] It should be noted that the RFID reader / writer 101, i.e., radio frequency identification, automatically identifies the target object and obtains relevant data through radio frequency identification signals without human intervention, can identify high-speed moving objects and can identify multiple RFID tags simultaneously;

[0049] The infrared two-dimensional code scanner 102 mainly relies on infrared sensing module and light sensing technology, and adopts the world's leading decoding technology. When the scanned object approaches the scanning window, the device instantly starts and quickly reads it by using the infrared sensing module and light sensing at the same time. This process involves automatic exposure control to ensure the accuracy and efficiency of the scan. Specifically, the infrared sensing module can sense the approach of the object, while the light sensing is responsible for confirming the specific location and details of the object, thereby triggering the scanning action.

[0050] In summary, the present invention prevents external forces from damaging the operation and maintenance main body 100 through the automatic shielding of the flip cover 202a, and at the same time reduces the interference of dust and sticky objects on the interactive surface of the operation and maintenance main body 100. The operation and maintenance main body 100 is cleaned regularly by the vacuum cleaner 301f, the breathable belt 301b and the flexible bristles 301c. While keeping the equipment clean, the attached objects are collected in a centralized manner to facilitate centralized cleaning and improve cleaning efficiency.

[0051] Example 3

[0052] Reference Figure 2 to Figure 7 , which is the third embodiment of the present invention, provides a portable operation and maintenance device for relay protection based on a digital model, which can solve the problem that the interaction surface of the information reader and the two-dimensional code scanner is easily damaged during the transfer or cleaning of the operation and maintenance device.

[0053] Specifically, it includes an operation and maintenance entity 100, an RFID reader 101, and an infrared two-dimensional code scanner 102;

[0054] The external unit 200 includes a placement component 201 disposed outside the operation and maintenance body 100, a flip component 202 disposed on the surface of the placement component 201, and a driving component 203 disposed between the placement component 201 and the flip component 202;

[0055] The dust removal unit 300 includes a dust removal component 301 disposed outside the flip component 202 and a connecting component 302 disposed outside the dust removal component 301 .

[0056] It should be noted that the RFID reader / writer 101, i.e., radio frequency identification, automatically identifies the target object and obtains relevant data through radio frequency identification signals without human intervention, can identify high-speed moving objects and can identify multiple RFID tags simultaneously;

[0057] The infrared two-dimensional code scanner 102 mainly relies on infrared sensing module and light sensing technology, and adopts the world's leading decoding technology. When the scanned object approaches the scanning window, the device instantly starts and quickly reads it by using the infrared sensing module and light sensing at the same time. This process involves automatic exposure control to ensure the accuracy and efficiency of the scan. Specifically, the infrared sensing module can sense the approach of the object, while the light sensing is responsible for confirming the specific location and details of the object, thereby triggering the scanning action.

[0058] Furthermore, the placement component 201 includes a placement frame 201a arranged on the outside of the operation and maintenance body 100, a limiting plate 201b arranged on the inside of the placement frame 201a, an installation groove 201c arranged on the inner edge of the placement frame 201a, and a docking groove 201d opened on the top of the placement frame 201a, wherein the docking groove 201d is adapted to the bottom of the operation and maintenance body 100, so that the operation and maintenance body 100 can be fixedly connected with the placement frame 201a.

[0059] Further, the flip assembly 202 includes a flip cover 202a disposed on one side of the mounting frame 201a, an air intake pipe 202b rotatably disposed at one end of the inner side of the flip cover 202a, an air intake pipe 202c rotatably disposed at the other end of the inner side of the flip cover 202a relative to the air intake pipe 202b, a driving screw 202d fixedly connected to the bottom of the flip cover 202a, an arc rod 202e fixedly connected to the driving screw 202d, and a first supporting spring 202f disposed on the outer side of the arc rod 202e;

[0060] A threaded sleeve is provided on the surface of the driving screw rod 202d, and the threaded sleeve is fixedly connected to the bottom of the flip cover 202a. A linkage pin is sleeved on the surface of the arc tube, and the linkage pin is plugged into the threaded sleeve.

[0061] It should be noted that, during the flipping process, the flip cover 202a first maintains a certain distance from the operation and maintenance main body 100 to prevent collision with components at other positions on the surface of the operation and maintenance main body 100.

[0062] Furthermore, the driving assembly 203 includes a motor 203a fixedly connected to the mounting frame 201a, a driving gear 203b disposed at one end of the motor 203a, and a follower gear 203c meshing with the driving gear 203b;

[0063] The follower gear 203c is fixedly connected to the outer side of the driving screw 202d.

[0064] It should be noted that the motor 203a is fixedly connected to the surface of the support seat, and the output end of the motor 203a passes through the support seat and extends into the mounting groove 201c, and is fixedly connected to the driving gear 203b in the mounting groove 201c.

[0065] Furthermore, the dust removal component 301 includes two sets of synchronous belts 301a arranged between the air inlet pipe 202b and the air suction pipe 202c, a breathable belt 301b arranged between the synchronous belts 301a, a flexible bristle 301c arranged on the outside of the breathable belt 301b, two sets of sealing rails 301d symmetrically arranged on the surfaces of the air inlet pipe 202b and the air suction pipe 202c, an impeller 301e arranged on the inner side of the air suction pipe 202c, and a vacuum cleaner 301f fixedly connected to one end of the air suction pipe 202c.

[0066] Furthermore, the connecting component 302 includes an air intake port 302a penetrating through the upper side of the limiting plate 201b, an air intake port 302b penetrating through the lower side of the limiting plate 201b, two sets of docking holes 302c arranged on the side wall of the flip cover 202a, positioning rings 302d respectively arranged on the inner walls of the air intake pipe 202b and the air intake pipe 202c, a second support spring 302e arranged on one side of the positioning ring 302d, and a docking tube 302f respectively slidably plugged with the air intake pipe 202b and the air intake pipe 202c.

[0067] It should be noted that there are four groups of docking holes 302c, which are respectively a first docking hole 302c arranged on the inner wall of the air inlet 302a, a second docking hole 302c arranged on the inner wall of the air suction 302b, a third docking hole 302c arranged on the side wall of the flip cover 202a and connected to the air inlet pipe 202b, and a fourth docking hole 302c arranged on the side wall of the flip cover 202a and connected to the air suction pipe 202c.

[0068] The third docking hole 302c can be connected to the first docking hole 302c, and the fourth docking hole 302c can be connected to the second docking hole 302c.

[0069] During use, when the operation and maintenance device needs to be cleaned, the motor 203a is started, and the motor 203a drives the driving gear 203b to rotate in the same direction through the motor 203a shaft. The driving gear 203b drives the follower gear 203c to rotate in the opposite direction with the driving gear 203b through meshing, and the follower gear 203c drives the driving screw 202d to rotate. At this time, the driving screw 202d moves to the position of the linkage pin through the thread under the support of the arc rod 202e and the first support spring 202f, and the linkage pin synchronous belt 301a drives the outer side of the driving screw 202d. The threaded sleeve moves, and at the same time, the driving threaded rod drives the flip cover 202a to move synchronously in the same direction. When the flip cover 202a moves to contact the surface of the limit plate 201b, the driving screw 202d continues to rotate. At this time, the driving screw 202d begins to compress the first support spring 202f. At the same time, the driving screw 202d drives the threaded sleeve to continue to move, and the threaded sleeve drives the flip cover 202a to continue to move until it is close to the operation and maintenance body 100. At this time, the flip cover 202a completely blocks the interaction surface of the RFID reader 101 and the infrared two-dimensional code scanner 102.

[0070] When the flip cover 202a completely blocks the interaction surface between the RFID reader 101 and the infrared two-dimensional code scanner 102, the third docking hole 302c is connected to the first docking hole 302c, and the fourth docking hole 302c is connected to the second docking hole 302c. At this time, the vacuum cleaner 301f is started to make the vacuum cleaner 301f suck air into the air intake port 302b. At this time, the air intake pipe 202c, the flip cover 202a and the air intake pipe 202b are connected, and the air flow is accelerated through the vacuum cleaner 301f, enters along the air intake port 302a, and passes through the first docking hole 302c, the third docking hole 302c, the air intake pipe 202b, the air intake port, the breathable belt 301b, the flexible bristles 301c, the inside of the flip cover 202a, the air intake port, the air intake pipe 20 2c and the air intake port 302b until it is sucked into the vacuum cleaner 301f. At the same time, when the air intake pipe 202c is inhaling air, the interaction between the impeller 301e and the airflow drives the air intake pipe 202c to rotate, and the air intake pipe 202c drives the synchronous belt 301a to rotate. The synchronous belt 301a drives the air permeable belt 301b and the flexible bristles 301c to rotate synchronously through transmission, so as to clean the interaction surface between the RFID reader 101 and the infrared two-dimensional code scanner 102. At this time, the airflow passing through the inside of the air permeable belt 301b separates the cleaned debris from the flexible bristles 301c, and the debris is sucked away by the air intake pipe 202c. The cleaned attachments are collected through the air intake pipe 202c, so as to ensure that the flexible bristles 301c always maintain a certain degree of cleanliness when in the cleaning state.

[0071] When the cleaning is completed and the operation and maintenance device needs to be used, the motor 203a is started to reverse the direction of the motor 203a, and the motor 203a drives the driving gear 203b to rotate in the same direction through the motor 203a shaft. The driving gear 203b drives the follower gear 203c to rotate in the opposite direction with the driving gear 203b through meshing. The follower gear 203c drives the driving screw 202d to rotate, and at the same time, the pressure of the driving screw 202d on the first supporting spring 202f is gradually released, and the first supporting spring 202f gradually extends to the initial state. At the same time, the driving screw 202d drives the driving threaded sleeve to move to the initial position, and the threaded sleeve drives the flip cover 202a to move synchronously in the same direction. , while keeping the flip cover 202a parallel to the surface of the operation and maintenance body 100, it gradually moves away from the interaction surface of the RFID reader 101 and the infrared two-dimensional code scanner 102. When the compression of the first support spring 202f is completely released, the driving screw 202d drives the first support spring 202f to rotate to the initial position. At the same time, the first support spring 202f drives the linkage pin to rotate synchronously in the same direction, the linkage pin drives the threaded sleeve to rotate synchronously in the same direction, and the threaded sleeve drives the flip cover 202a to flip synchronously in the same direction to the initial position, completing the recovery of the flip cover 202a, so that the interaction surface of the RFID reader 101 and the infrared two-dimensional code scanner 102 is completely unblocked.

[0072] In summary, the present invention prevents external forces from damaging the operation and maintenance main body 100 through the automatic shielding of the flip cover 202a, and at the same time reduces the interference of dust and sticky objects on the interactive surface of the operation and maintenance main body 100. The operation and maintenance main body 100 is cleaned regularly by the vacuum cleaner 301f, the breathable belt 301b and the flexible bristles 301c. While keeping the equipment clean, the attached objects are collected in a centralized manner to facilitate centralized cleaning and improve cleaning efficiency.

[0073] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in the application (e.g., mounting arrangements, use of materials, color, changes in orientation, etc.). For example, the element shown as integrally formed may be composed of a plurality of parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "bracket plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0074] Additionally, in an effort to provide a concise description of example embodiments, all features of an actual implementation may not be described.

[0075] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A portable operation and maintenance method for relay protection based on a digital model, characterized in that: By flipping the flip cover to the shielding state, the operation and maintenance subject enters the protection state; When the flip cover is in the shielding state, clean the operation and maintenance subject; By flipping the flip cover to a non-blocking state, the operation and maintenance subject enters a state to be detected.

2. A portable operation and maintenance method for relay protection based on a digital model as claimed in claim 1, characterized in that: The flip cover shielding state includes that the flip cover completely covers the interaction surface of the operation and maintenance subject.

3. A portable operation and maintenance method for relay protection based on a digital model as claimed in claim 2, characterized in that: The cleaning includes sweeping and vacuuming, and the interaction surface of the operation and maintenance subject is cleaned while floating dust is adsorbed and recovered.

4. A portable operation and maintenance method for relay protection based on a digital model as claimed in claim 3, characterized in that: The state to be detected includes that the flip cover is flipped to an initial position, and the interactive surface of the operation and maintenance subject is uncovered.

5. A portable operation and maintenance device for relay protection based on a digital model, used to implement a portable operation and maintenance method for relay protection based on a digital model, characterized in that: include, The operation and maintenance entity (100) includes an RFID reader / writer (101) and an infrared two-dimensional code scanner (102); The external unit (200) comprises a placement component (201) arranged outside the operation and maintenance body (100), a flip component (202) arranged on the surface of the placement component (201), and a driving component (203) arranged between the placement component (201) and the flip component (202); The dust removal unit (300) comprises a dust removal component (301) arranged outside the flip component (202), and a connecting component (302) arranged outside the dust removal component (301).

6. The portable operation and maintenance device for relay protection based on a digital model according to claim 5, characterized in that: The placement component (201) comprises a placement frame (201a) arranged on the outside of the operation and maintenance body (100), a limiting plate (201b) arranged on the inside of the placement frame (201a), a mounting groove (201c) arranged on the inner edge of the placement frame (201a), and a docking groove (201d) opened on the top of the placement frame (201a).

7. A portable operation and maintenance device for relay protection based on a digital model as claimed in claim 6, characterized in that: The flip assembly (202) comprises a flip cover (202a) arranged on one side of the mounting frame (201a), an air intake pipe (202b) rotatably arranged at one end of the inner side of the flip cover (202a), an air intake pipe (202c) rotatably arranged at the other end of the inner side of the flip cover (202a) relative to the air intake pipe (202b), a driving screw rod (202d) fixedly connected to the bottom of the flip cover (202a), an arc rod (202e) fixedly connected to the driving screw rod (202d), and a first supporting spring (202f) arranged on the outer side of the arc rod (202e); A threaded sleeve is provided on the surface of the driving screw rod (202d), and the threaded sleeve is fixedly connected to the bottom of the flip cover (202a). A linkage pin is sleeved on the surface of the arc tube, and the linkage pin is plugged into the threaded sleeve.

8. The portable operation and maintenance device for relay protection based on a digital model according to claim 7, characterized in that: The driving assembly (203) comprises a motor (203a) fixedly connected to the mounting frame (201a), a driving gear (203b) arranged at one end of the motor (203a), and a follower gear (203c) meshing with the driving gear (203b); The follower gear (203c) is fixedly connected to the outer side of the driving screw rod (202d).

9. The portable operation and maintenance device for relay protection based on a digital model according to any one of claims 5 to 8, characterized in that: The dust removal component (301) comprises two sets of synchronous belts (301a) arranged between the air inlet pipe (202b) and the air suction pipe (202c), a breathable belt (301b) arranged between the synchronous belts (301a), flexible bristles (301c) arranged on the outside of the breathable belt (301b), two sets of sealing rails (301d) symmetrically arranged on the surfaces of the air inlet pipe (202b) and the air suction pipe (202c), an impeller (301e) arranged on the inside of the air suction pipe (202c), and a dust collector (301f) fixedly connected to one end of the air suction pipe (202c).

10. The portable operation and maintenance device for relay protection based on a digital model according to claim 9, characterized in that: The connecting component (302) comprises an air intake port (302a) penetrating through the upper side of the limiting plate (201b), an air intake port (302b) penetrating through the lower side of the limiting plate (201b), two groups of docking holes (302c) arranged on the side wall of the flip cover (202a), positioning rings (302d) respectively arranged on the inner walls of the air intake pipe (202b) and the air intake pipe (202c), a second supporting spring (302e) arranged on one side of the positioning ring (302d), and docking tubes (302f) respectively slidably plugged with the air intake pipe (202b) and the air intake pipe (202c).

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