A distribution automation terminal device

Abstract

The present invention discloses a power distribution automation terminal device, which relates to the technical field of power distribution measurement and control terminals, including a base plate, and also a cover, which is movably installed above the base plate, and a mounting frame located on the back of the cover is symmetrically installed on the base plate, a terminal body, which is movably installed in the cover, and a support rod penetrating the cover is fixedly connected to the mounting frame, which is used to support the terminal body, and a plug-in component penetrating the support rod is installed in the cover, and the plug-in component is drivingly connected to the terminal body, and a maintenance check mechanism is embedded in the top of the support rod and abuts with the terminal body, and a handle is symmetrically installed on the panel of the terminal body. In the first stroke of the terminal body moving outward, the maintenance check mechanism abuts the terminal body from the back. The present invention makes the installation and disassembly of the terminal body and the cover simple and quick by providing a movably installed cover, a support rod penetrating the cover, and a plug-in component cooperating therewith.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution measurement and control terminals, and in particular to a power distribution automation terminal device. Background Art

[0002] Distribution automation terminals are mostly installed on distribution equipment to detect and regulate its internal functions. They are the general term for various remote monitoring and control units installed in the distribution network. They are the key components of the distribution automation system and are responsible for realizing real-time monitoring, control, fault detection and isolation of the distribution network.

[0003] The patent publication number of the existing patent application is: CN113410795B, and the publication date is December 9, 2022. The name of the patent is "A distribution automation terminal device", which includes a terminal body, a display screen, the display screen is fixedly mounted on the top of the terminal body, a cavity, the cavity is opened on the terminal body, a mounting plate, the mounting plate is slidably connected to the inner wall of the cavity, the mounting plate is located in the cavity, a mounting hole, the mounting hole is opened on the top inner wall of the cavity, an operating panel, the operating panel is located in the mounting hole, and the top of the operating panel extends to above the mounting hole, a cover plate, the cover plate is slidably mounted on the top of the terminal body, and the cover plate is adapted to the mounting hole, and a lifting mechanism, the lifting mechanism is installed in the terminal body. The distribution automation terminal device provided by the present invention has the advantages of easy use, simple operation, ability to store and protect the operating panel, and ability to prevent the operating panel from being accidentally touched.

[0004] The above application has its shortcomings. Although it can ensure that the operation panel will not be easily touched by mistake, the installation and disassembly of the equipment often requires complicated operation processes. In particular, when the terminal body needs to be repaired or replaced, it may be necessary to disassemble multiple parts to meet the requirements of the working environment. At the same time, during the maintenance process, if the terminal body cannot be firmly maintained in a certain position, the body is prone to shaking during the disassembly process, and the operation cannot be performed directly at the installation position, which may also cause damage to the equipment. Summary of the invention

[0005] The object of the present invention is to provide a distribution automation terminal device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A distribution automation terminal device comprises a base plate and a cover which is movably mounted above the base plate, a mounting frame symmetrically mounted on the base plate and located on the back side of the cover, a terminal body movably mounted in the cover, a support rod penetrating the cover is fixedly connected to the mounting frame and is used to support the terminal body, a connector penetrating the support rod is mounted in the cover, the connector is drivingly connected to the terminal body, a maintenance check mechanism is embedded in the top of the support rod and abuts against the terminal body, a handle is symmetrically mounted on the panel of the terminal body, in a first stroke of the terminal body moving outwards, the maintenance check mechanism abuts against the terminal body from the back, and in a second stroke of the terminal body moving outwards, the connector is driven to disengage from the support rod.

[0008] Preferably, a slot matching the mounting frame is provided on the back of the cover, and a hook is fixedly connected to the top of the mounting frame.

[0009] Preferably, sliding sleeves are installed on both sides of the bottom of the terminal body, and the sliding sleeves are slidably mounted on the support rod. Anti-slip protrusions that abut and cooperate with the inner wall of the sliding sleeve are elastically installed on both sides of the support rod.

[0010] Preferably, the connector includes an insertion plate vertically slidably mounted on the inner wall of the cover, a receiving groove for the insertion plate to move up and down is vertically opened on the back of the terminal body, a driven rack is embedded in the inner wall of the insertion plate, the cover is rotatably mounted with a tooth column meshing with the driven rack in the receiving groove, a transmission shaft is horizontally mounted inside the cover, a transmission belt is installed between the transmission shaft and the tooth column, a transmission gear is installed on the transmission shaft, and a driving rack meshing with the transmission gear is fixedly connected to the bottom of the sliding sleeve.

[0011] Preferably, the maintenance non-return mechanism includes a non-return rack elastically embedded in the top of the support rod, a plurality of top springs are installed between the non-return rack and the support rod, a groove is opened at the bottom of the terminal body above the non-return rack, and a wedge-shaped abutment block is fixedly connected in the groove and is unidirectionally inclined against the non-return rack.

[0012] Preferably, a pressure rod that presses against the non-return rack is embedded in the handle, a positioning button is elastically installed on the pressure rod, a first limiting column and a second limiting column that cooperate with the positioning button are provided on the handle, a pair of cross bars are installed at the bottom of the pressure rod, and the cross bars are inserted into the grooves.

[0013] Preferably, a plurality of cleaning brushes are installed inside the cover and rotate in the opposite direction to the transmission shaft, and the cleaning brushes are located below the terminal body.

[0014] Preferably, louvered heat dissipation windows are provided on both sides of the cover, and a cam for adjusting the opening and closing angles of the louvered heat dissipation windows is installed at the end of the transmission shaft.

[0015] Preferably, a storage slot is installed at the bottom of the base plate, a storage drawer is movably embedded in the storage slot, a connecting rack is installed on the top of the storage drawer, and a driven gear that is rotatably connected in the base plate and meshes with the transmission gear and the connecting rack respectively.

[0016] Preferably, a locking pin inserted into the storage drawer is vertically installed on the bottom plate.

[0017] In the above technical scheme, by providing a movably installed cover, a support rod passing through the cover and a connector cooperating therewith, the installation and disassembly of the terminal body and the cover become simple and quick. The operator only needs to hold the handle to move the terminal body outward. The design of the maintenance check mechanism ensures that in the first stroke of the terminal body moving outward, the terminal body can be firmly supported from the back at any time to ensure that the equipment will not shake when the disassembly and assembly tools apply force inward during operation, thereby ensuring the safety of the operator. At the same time, in the second stroke, the moving distance of the terminal body realizes the disengagement of the connector and the support rod, thereby facilitating further disassembly of the cover and facilitating on-site replacement of other components in the equipment at the installation position. The disengagement of the connector and the support rod is also carried out smoothly, further reducing the safety risk.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a power distribution automation terminal device of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of a power distribution automation terminal device of the present invention;

[0023] Figure 3 This is an overall cross-sectional view of a power distribution automation terminal device of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of a cover in a power distribution automation terminal device of the present invention;

[0025] Figure 5 This is an enlarged view of point A of a power distribution automation terminal device of the present invention;

[0026] Figure 6 It is a transmission schematic diagram of a connector and a sliding sleeve in a power distribution automation terminal device of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a terminal body in a power distribution automation terminal device of the present invention;

[0028] Figure 8 A bottom view of a terminal body in a power distribution automation terminal device of the present invention;

[0029] Fig. 9 The present invention is a schematic diagram of the structure of a storage drawer in a power distribution automation terminal device.

[0030] Description of reference numerals:

[0031] 1. Bottom plate; 101. Mounting frame; 102. Support rod; 103. Hook; 104. Anti-drop protrusion; 105. Driven gear; 106. Locking pin; 2. Cover; 201. Slot; 202. Gear column; 203. Transmission shaft; 204. Transmission belt; 205. Transmission gear; 206. Cleaning brush; 208. Louver heat dissipation window; 209. Cam; 3. Terminal body; 301. Grip; 302. Sliding sleeve; 3 03, accommodating groove; 304, driving rack; 305, groove; 306, wedge-shaped block; 307, pressure rod; 308, positioning button; 309, first limiting column; 310, second limiting column; 311, cross bar; 4, plug-in; 401, plug-in plate; 402, driven rack; 5, maintenance check mechanism; 501, check rack; 502, top spring; 6, storage slot; 601, storage drawer; 602, connecting rack. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] See also Figure 1-9A distribution automation terminal device provided by an embodiment of the present invention includes a base plate 1 and a cover 2, which is movably installed above the base plate 1. A mounting frame 101 located on the back of the cover 2 is symmetrically installed on the base plate 1. A terminal body 3 is movably installed in the cover 2. A support rod 102 penetrating the cover 2 is fixedly connected to the mounting frame 101 and is used to support the terminal body 3. A connector 4 penetrating the support rod 102 is installed in the cover 2. The connector 4 is transmission-connected to the terminal body 3. A maintenance check mechanism 5 is embedded in the top of the support rod 102 and abuts against the terminal body 3. A handle 301 is symmetrically installed on the panel of the terminal body 3. In the first stroke of the terminal body 3 moving outward, the maintenance check mechanism 5 abuts against the terminal body 3 from the back. In the second stroke of the terminal body 3 moving outward, the connector 4 is driven to disengage from the support rod 102.

[0034] Specifically, the cover 2 is movably installed above the base plate 1, and a protective cover (not shown in the figure) is installed on the cover 2 to form a closed or semi-closed space for protecting the internal terminal body 3 and its related components from the influence of the external environment. The cover 2 can be moved relative to the base plate 1. During installation, the base plate 1 can be fixed first, and then the cover 2 is installed on the base plate 1. The cover 2 can be removed to facilitate subsequent access to and maintenance of the internal components. The terminal body 3 is the core part of the equipment and is responsible for performing various functions of power distribution automation. It is movably installed inside the cover 2. A handle 301 is installed on the terminal body 3 to facilitate the operator to hold and push and pull operations. The support rod 102 is used to connect the mounting frame 101 on the base plate 1 and the cover 2 together. The support rod 102 penetrates the cover 2 to prevent the base plate 1 and the cover 2 from separating, thereby ensuring the strength of the structure. At the same time, another main function is to support the terminal The terminal body 3 ensures its stability and safety during operation. The support rod 102 also cooperates with the connector 4 so that the connector 4 can be reliably connected to the terminal body 3. During the specific maintenance operation, when the operator moves the terminal body 3 outward through the handle 301, the terminal body 3 first enters the first stroke. During this stroke, if the staff uses the disassembly tool to load, unload and replace the components on the terminal body 3, since the maintenance check mechanism 5 is against the terminal body 3 from the back, the force applied by the staff from the outside is not enough to make the terminal body 3 shake, and it can also prevent it from accidentally slipping or excessive movement. Subsequently, the terminal body 3 continues to enter the second stroke, at which time it will drive the locking structure of the connector 4 to disengage from the support rod 102, so that not only the terminal body 3 can be removed, but also the cover 2 can be further removed, making the entire maintenance process more comprehensive and efficient.

[0035] Compared with the prior art, the embodiment of the present invention makes the installation and disassembly of the terminal body 3 and the cover 2 simple and quick by providing a movably installed cover 2, a support rod 102 passing through the cover 2, and a connector 4 cooperating therewith. The operator only needs to hold the handle 301 to move the terminal body 3 outward. The design of the maintenance check mechanism 5 ensures that in the first stroke of the terminal body 3 moving outward, the terminal body 3 can be firmly supported from the back at any time to ensure that the equipment will not shake when the disassembly tool applies force inward during the operation, thereby ensuring the safety of the operator. At the same time, in the second stroke, the moving distance of the terminal body 3 realizes the disengagement of the connector 4 and the support rod 102, thereby facilitating further disassembly of the cover 2 and facilitating on-site replacement of other components in the equipment at the installation position. The disengagement of the connector 4 and the support rod 102 is also carried out smoothly, further reducing the safety risk.

[0036] In a further embodiment of the present invention, a slot 201 matching the mounting frame 101 is provided on the back of the cover 2, and a hook 103 is fixedly connected to the top of the mounting frame 101, and a plurality of fasteners are installed on the hook 103. Specifically, the design of the slot 201 enables the cover 2 to be accurately aligned with the mounting frame 101, providing stability and guidance, so that the base and the cover 2 are more tightly connected. During installation, the cover 2 is first pushed on the base plate 1 toward the mounting frame 101 so that the mounting frame 101 is inserted into the slot 201. Since the position of the slot 201 is fixed, the cover 2 can be firmly installed on the base plate 1 without shaking or misalignment. The hook 103 on the top of the mounting frame 101 is a bent piece of metal material, which can be fixed to the mounting frame 101 by welding or bolts. The design purpose of the hook 103 is to further enhance the connection strength between the cover 2 and the mounting frame 101 and provide additional fixing points to make the equipment installation method more diverse.

[0037] In a further embodiment of the present invention, sleeves 302 are installed on both sides of the bottom of the terminal body 3, and the sleeves 302 are slidably mounted on the support rod 102. Anti-slip protrusions 104 that abut against the inner wall of the sleeve 302 are elastically installed on both sides of the support rod 102. Specifically, the main function of the anti-slip protrusion 104 is to abut against the inner wall of the sleeve 302, so as to produce a certain damping effect when the terminal body 3 is pulled outward along the support rod 102. This damping effect helps to slow down the movement speed of the terminal body 3 and prevent it from suddenly rushing out or colliding due to inertia. When the terminal body 3 is pushed by external force, the sleeve 302 will squeeze the elastic element of the anti-slip protrusion 104, so that the anti-slip protrusion 104 is embedded in the support rod 102, and the protrusion part is more closely fitted to the inner wall of the sleeve 302, thereby increasing the damping effect; when the external force disappears, the elastic element will restore the deformation, so that the anti-slip protrusion 104 returns to its original position; the anti-slip protrusion 104 in the initial position can prevent the terminal body 3 from moving outward along the support rod 102 when the device is operating normally.

[0038] In a further embodiment of the present invention, the plug-in component 4 includes a plug-in plate 401 vertically slidably mounted on the inner wall of the cover 2, a receiving groove 303 for the plug-in plate 401 to move up and down is vertically opened on the back of the terminal body 3, a driven rack 402 is embedded in the inner wall of the plug-in plate 401, and the cover 2 is rotatably mounted with a tooth column 202 meshing with the driven rack 402 in the receiving groove 303, and torsion springs are installed at both ends of the tooth column 202, and a transmission shaft 203 is horizontally installed inside the cover 2, and the transmission shaft A transmission belt 204 is installed between 203 and the tooth column 202, a transmission gear 205 is installed on the transmission shaft 203, and a driving rack 304 meshing with the transmission gear 205 is fixedly connected to the bottom of the sliding sleeve 302. Specifically, the axial direction of the tooth column 202 is perpendicular to the sliding direction of the plug plate 401, and teeth meshing with the driven rack 402 are arranged on it. When the tooth column 202 rotates clockwise or counterclockwise, it will drive the plug plate 401 to move up and down through the driven rack 402. When the operator pushes the terminal body 3 into the cover 2, the driving rack 304 on the sliding sleeve 302 will drive the transmission shaft 203 to rotate through the transmission gear 205, and the transmission shaft 203 will drive the gear column 202 to rotate through the transmission belt 204, so that the plug plate 401 engaged with the gear column 202 will drop vertically until it passes through the support rod 102 on the mounting frame 101, thereby locking the position of the cover 2 to prevent the cover 2 from falling off. During the whole process, the engagement and transmission between the various components are accurate, stable and efficient. When the terminal body 3 needs to be pulled out for maintenance, the terminal body 3 is reversely driven according to the above-mentioned transmission sequence, that is, the plug plate 401 moves upward during the outward movement of the terminal body 3. When the terminal body 3 is in the second stroke, the position of the plug plate 401 is already above the support rod 102, so that the cover 2 can be quickly removed when further maintenance is required, and the internal parts of the equipment can be observed in more detail.

[0039] In a further embodiment of the present invention, the maintenance check mechanism 5 includes a check rack 501 elastically embedded in the top of the support rod 102, a plurality of top springs 502 are installed between the check rack 501 and the support rod 102, a groove 305 is provided at the bottom of the terminal body 3 above the check rack 501, a wedge-shaped stop block 306 which is unidirectionally inclined against the check rack 501 is fixedly connected in the groove 305, specifically, the check rack 501 is in the shape of a long strip, and teeth are evenly distributed on the upper surface, and these teeth are used for unidirectional locking with the wedge-shaped stop block 306, and a part of the check rack 501 is embedded in the support rod 102, while the other part is exposed from the support rod 102. The top of the terminal body 3 is in contact with the wedge-shaped stop block 306 in the groove 305 of the terminal body 3. When the terminal body 3 moves outward, the wedge-shaped stop block 306 tilts and presses the teeth on the non-return rack 501, and the non-return rack 501 is forced to drop under pressure, making it convenient for the terminal body 3 to move outward during maintenance. After the terminal body 3 is moved to a suitable position, the non-return rack 501 is reset and moved upward under the action of the top spring 502. At this time, the teeth on the non-return rack 501 and the back of the wedge-shaped stop block 306 are vertically abutted, and the terminal body 3 will not move even if the staff pushes it inward with force. The one-way locking ensures the stability of the staff when using tools to operate the terminal body 3 from the outside.

[0040] In a further embodiment of the present invention, a pressure rod 307 is embedded in the handle 301 for pressing against the non-return rack 501, and a positioning button 308 is elastically installed on the pressure rod 307. The two springs or other elastic elements are connected to the pressure rod 307, and the handle 301 is provided with a first limiting column 309 and a second limiting column 310 that cooperate with the positioning button 308. The positioning button 308 is provided with a card slot 201 that is engaged with the two. The height of the first limiting column 309 is higher than that of the second limiting column 310. A pair of cross bars 311 are installed at the bottom of the pressure rod 307, and the cross bars 311 are inserted into the groove 305. Specifically, the pressure rod 307 is embedded in the handle 301 and can move freely up and down by pressing the positioning button 308. The bottom of the pressure rod 307 corresponds to the non-return rack 501. When the pressure rod 307 When moving downward, its bottom will press against the check rack 501, causing it to overcome the elastic force of the top spring 502 and move downward. In this way, the teeth of the check rack 501 will separate from the wedge-shaped stop block 306, thereby releasing the one-way lock on the terminal body 3. When the positioning button 308 is not pressed, if it is engaged with the first limit column 309, the pressure rod 307 is in an inactive state at this time, and the check rack 501 maintains the one-way lock on the terminal body 3. If it is engaged with the second limit column 310, the positioning button 308 pushes the pressure rod 307 downward through a mechanical connection, thereby releasing the lock, making it convenient for the staff to move the terminal body 3 that has been repaired back to its original position. When the user presses the positioning button 308, the height of the pressure rod 307 can be adjusted at will, and the operation is convenient and simple.

[0041] In a further embodiment of the present invention, a plurality of cleaning brushes 206 are installed inside the cover 2, which rotate in the opposite direction to the transmission shaft 203. The cleaning brushes 206 are located below the terminal body 3, and the cleaning brushes 206 and the transmission shaft 203 are driven by a cross belt. Specifically, the cleaning brushes 206 are installed inside the cover 2 and are located below the terminal body 3. Such a layout enables the bristles of the cleaning brushes 206 to directly contact the bottom of the terminal body 3 and its surrounding area, thereby effectively cleaning. At the same time, they are designed to rotate in the opposite direction, which means that when the transmission shaft 203 performs its main function, the cleaning brushes 206 will rotate in the opposite direction. This design not only utilizes the existing power source, but also realizes the outward cleaning function of the internal dust without additional energy consumption. The internal dust is cleaned just before maintenance, and the dust and debris that may accumulate around the terminal body 3 are automatically cleaned to ensure the normal operation and heat dissipation effect of the equipment.

[0042] In a further embodiment of the present invention, louvered heat dissipation windows 208 are provided on both sides of the cover 2, and cams 209 for adjusting the opening and closing angles of the louvered heat dissipation windows 208 are installed at the ends of the transmission shaft 203. Specifically, the louvered heat dissipation windows 208 are installed on both sides of the cover 2, and their main function is to allow air circulation so as to discharge the heat inside the cover 2. The louvers in the louvered heat dissipation windows 208 rotate synchronously. When the cam 209 pushes the bottom blade, the remaining blades flip synchronously. When the terminal body 3 is pulled out, the transmission shaft 203 is driven to rotate, so that the cam 209 at the end of the transmission shaft 203 can intermittently open the louver, thereby further accelerating the diffusion flow of the internal temperature of the cover 2 before formal maintenance.

[0043] In a further embodiment of the present invention, a storage slot 6 is installed at the bottom of the base plate 1, and a storage drawer 601 is movably embedded in the storage slot 6. The storage drawer 601 has no handle design and is hidden in the storage slot 6. A connecting rack 602 is installed on the top of the storage drawer 601. A driven gear 105 that is rotatably connected to the base plate 1 and is respectively meshed with the transmission gear 205 and the connecting rack 602. Specifically, the storage drawer 601 is used to store consumables and tools for power inspection and maintenance. This storage drawer 601 is connected to the transmission gear 205 through the meshing relationship between the gear rack. It has no handle, so the storage drawer 601 can be moved out by itself only by pulling the terminal body 3 outward, which is convenient for the staff and effectively prevents outsiders from taking the internal items at will.

[0044] In a further embodiment of the present invention, a locking pin 106 inserted into the storage drawer 601 is vertically installed on the base plate 1. Specifically, if the locking pin 106 is plugged into the storage drawer 601, the storage drawer 601 cannot be pulled out, and the movement of the entire terminal body 3 and the movement of the cover 2 will be restricted by the corresponding meshing relationship, thereby ensuring the reliability of the overall structure of the equipment under normal operating conditions and avoiding the loosening of the internal structure due to vibration in the installation environment.

[0045] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A power distribution automation terminal device, comprising a base plate (1), characterized in that: Also includes: A cover (2) is movably mounted above the base plate (1), and a mounting frame (101) is symmetrically mounted on the base plate (1) and is located on the back side of the cover (2); A terminal body (3) is movably mounted in the cover (2); a support rod (102) penetrating the cover (2) is fixedly connected to the mounting frame (101) and is used to support the terminal body (3); a plug-in component (4) penetrating the support rod (102) is mounted in the cover (2); the plug-in component (4) is in driving connection with the terminal body (3); sliding sleeves (302) are mounted on both sides of the bottom of the terminal body (3); the sliding sleeves (302) are slidably mounted on the support rod (102); and anti-drop protrusions (104) that abut against the inner wall of the sliding sleeve (302) are elastically mounted on both sides of the support rod (102); The plug-in connector (4) comprises a plug-in plate (401) vertically slidably mounted on the inner wall of the cover (2); a receiving groove (303) for the plug-in plate (401) to move up and down is vertically opened on the back of the terminal body (3); a driven rack (402) is embedded in the inner wall of the plug-in plate (401); a tooth column (202) meshing with the driven rack (402) is rotatably mounted in the receiving groove (303) of the cover (2); a transmission shaft (203) is horizontally mounted inside the cover (2); a transmission belt (204) is mounted between the transmission shaft (203) and the tooth column (202); a transmission gear (205) is mounted on the transmission shaft (203); and a driving rack (304) meshing with the transmission gear (205) is fixedly connected to the bottom of the sliding sleeve (302); The maintenance check mechanism (5) is embedded in the top of the support rod (102) and abuts against the terminal body (3). A handle (301) is symmetrically installed on the panel of the terminal body (3). The maintenance check mechanism (5) includes a check rack (501) elastically embedded in the top of the support rod (102). A plurality of top springs (502) are installed between the check rack (501) and the support rod (102). A groove (305) is opened above the check rack (501) at the bottom of the terminal body (3). The groove (305) is provided with a spring. A wedge-shaped abutment block (306) is fixedly connected to the non-return rack (501) and is inclined to abut against the non-return rack (501) in one direction. A pressure rod (307) is embedded in the handle (301) to press the non-return rack (501). A positioning button (308) is elastically installed on the pressure rod (307). A first limiting column (309) and a second limiting column (310) that match the positioning button (308) are provided on the handle (301). A pair of cross bars (311) are installed at the bottom of the pressure rod (307), and the cross bars (311) are inserted into the groove (305). In the first stroke of the terminal body (3) moving outward, the inspection non-return mechanism (5) abuts against the terminal body (3) from the back, and in the second stroke of the terminal body (3) moving outward, the connector (4) is driven to disengage from the support rod (102).

2. A distribution automation terminal device according to claim 1, characterized in that: A slot (201) matching the mounting frame (101) is provided on the back of the cover (2), and a hook (103) is fixedly connected to the top of the mounting frame (101).

3. A distribution automation terminal device according to claim 1, characterized in that: A plurality of cleaning brushes (206) which rotate in the opposite direction to the transmission shaft (203) are installed inside the cover (2), and the cleaning brushes (206) are located below the terminal body (3).

4. A distribution automation terminal device according to claim 1, characterized in that: Louvered heat dissipation windows (208) are provided on both sides of the cover (2), and a cam (209) for adjusting the opening and closing angle of the louvered heat dissipation windows (208) is installed at the end of the transmission shaft (203).

5. A distribution automation terminal device according to claim 1, characterized in that: A storage groove (6) is installed at the bottom of the base plate (1), a storage drawer (601) is movably embedded in the storage groove (6), a connecting rack (602) is installed on the top of the storage drawer (601), and a driven gear (105) is rotatably connected in the base plate (1) and is respectively meshed with the transmission gear (205) and the connecting rack (602).

6. A distribution automation terminal device according to claim 5, characterized in that: A locking pin (106) inserted into the storage drawer (601) is installed vertically through the bottom plate (1).

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