An automatic locking wind-resistant box-type substation

Abstract

The application provides an automatic locking wind-resistant box-type substation, and belongs to the technical field of substations. The automatic locking wind-resistant box-type substation comprises a box body, a box door, a positioning mechanism, a handle and an unlocking assembly. The box door is rotatably connected to the box body. The positioning mechanism is arranged at the rotatable connection position of the box door and the box body. The positioning mechanism is used for automatically fixing the position of the box door when the box door is opened to a specified angle or closed. The handle is rotatably arranged on the box door. The unlocking assembly is arranged on the box door and connected to the handle and all the positioning mechanisms. The unlocking assembly is used for releasing the position fixing of the box door by all the positioning mechanisms when the handle is rotated downward. The application is provided with multiple sets of positioning mechanisms at the rotatable connection position of the box door and the box body, so that automatic position locking of the box door is realized when the box door is opened to any specified angle or closed. The operation of fixing components such as wind hooks by operation and maintenance personnel is not needed, and the timeliness and convenience of the box door fixing are greatly improved.

Description

Technical Field

[0001] This application belongs to the technical field of substations, and more specifically, relates to an automatic locking wind-resistant box-type substation. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor or outdoor power distribution equipment that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution devices according to a specific wiring scheme.

[0003] A prefabricated substation consists of a box and a door. After the door is opened, a door and window windproof hook is needed to lock the angle of the opened door to prevent the door from being blown closed by the wind, which would affect the operation and entry and exit of the personnel inside the box.

[0004] After the operators open the box door, they may easily forget to use the windproof hook to fix the box door due to negligence, resulting in the box door not being fixed in time and affecting subsequent operation and maintenance work. Summary of the Invention

[0005] The purpose of this application is to provide an automatic locking wind-resistant box-type substation to solve the technical problem in the prior art where operators may easily forget to operate the windproof hook to fix the box door after opening it, resulting in insufficient timeliness of the box door angle fixing and affecting subsequent operation and maintenance.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide an automatically locking wind-resistant prefabricated substation, including a enclosure and a door, wherein one side of the door is rotatably connected to the enclosure; the automatically locking wind-resistant prefabricated substation further includes: A positioning mechanism is provided at the rotatable connection between the door and the body of the container. The positioning mechanism is used to automatically fix the position of the door when the door is opened to a specified angle or closed. A handle, rotatably mounted on the cabinet door; and An unlocking component is disposed on the door and connected to the handle and all the positioning mechanisms. The unlocking component is used to release the position fixation of the door by all the positioning mechanisms when the handle is turned downward.

[0007] In one possible implementation, based on the above technical solutions, the positioning mechanism includes: An arc-shaped track is located inside the box door and is coaxial with the rotation axis of the box door. A track groove is coaxially formed on the bottom surface of the arc-shaped track, and one end of the arc-shaped track is fixed to the inner wall of the box door. A reset assembly is positioned above the arc-shaped track; An insert plate is vertically positioned directly below the track groove and fixed to the housing; Two top plates are hinged to both sides of the insert plate, with their rotation axes horizontally positioned. The two top plates are inserted into the track groove and respectively abut against the two arc-shaped inner sidewalls of the track groove; and Two sets of retaining components are connected one-to-one with the two top plates, and the top plates are in a retracted state before being inserted into the track slot.

[0008] In one possible implementation, based on the above technical solutions, two guide bars are coaxially arranged inside the track groove, and the arc-shaped surfaces of the two guide bars are inclined in opposite directions. The inclined surfaces of the guide bars are used to press the top plate against the inner wall of the track groove when the insert plate is inserted into the track groove, so that the top plate presses against the inner wall of the track groove.

[0009] In one possible implementation, based on the above technical solutions, the two arc-shaped inner sidewalls of the track groove are provided with a plurality of vertically arranged positioning grooves arranged in an array along their circumference, and the bottom of the positioning grooves is open; the top of the top plate is provided with a positioning block for insertion into the positioning grooves.

[0010] In one possible implementation, based on the above technical solutions, the insert plate has a receiving groove on its side wall facing the top plate; the retaining assembly includes: A reinforcing rod, one end of which is hinged to the top plate, and the other end which is slidably disposed within the receiving groove, wherein the rotation axis of the reinforcing rod is parallel to the rotation axis of the top plate; and A retaining spring is vertically installed in the receiving groove, with one end of the retaining spring connected to the top wall of the receiving groove and the other end connected to the reinforcing rod; When the retaining spring is in a free state, the positioning block is located directly below the track groove.

[0011] In one possible implementation, based on the above technical solutions, the reset component includes: A fixing bracket is fixed to the inside of the box door and located directly above the arc-shaped track; and A return spring is vertically positioned between the fixed frame and the arc-shaped track; When the reset spring is in a free state, the positioning block is located in the positioning groove.

[0012] In one possible implementation, based on the above technical solutions, the unlocking component includes: A rotating shaft is rotatably mounted and extends through the box door, and the handle is fixed to the rotating shaft. Multiple guide wheels are rotatably mounted on the inner wall of the cabinet door; and One end of the pull rope is fixed to the circumference of the rotating shaft, and the other end is fixed to all the arc-shaped tracks after passing through multiple guide wheels; The pull rope located directly above the arc-shaped track is vertical.

[0013] In one possible implementation, based on the above technical solutions, a through hole is coaxially formed on the rotating shaft; the unlocking component further includes: A sliding rod is slidably disposed in the perforation along the axial direction of the perforation, with one end of the sliding rod located on the outside of the box door and the other end located on the inside of the box door; A limiting spring is sleeved on the portion of the sliding rod located inside the door; one end of the limiting spring is connected to the rotating shaft, and the other end is connected to the end of the sliding rod. A limiting component is disposed between the inner end of the sliding rod and the box door, for fixing the rotating shaft to the box door; When the sliding rod slides toward the inside of the box door, the limiting component releases its fixation on the rotating shaft.

[0014] In one possible implementation, based on the above technical solutions, the limiting component includes: A limiting rod is fixed to the inner circumferential surface of the sliding rod, and the limiting rod is perpendicular to the sliding rod; and A limiting plate is fixed inside the door, and a limiting groove is provided on the limiting plate for the limiting rod to be inserted.

[0015] In one possible implementation, in conjunction with the above technical solutions, the positioning mechanism further includes: An auxiliary reset shaft is vertically rotatably mounted inside the housing and located inside the arc-shaped track; An auxiliary gear is coaxially fixed on the auxiliary reset shaft; An arc-shaped rack is coaxially fixed on the arc-shaped track and always meshes with the auxiliary gear; and A coil spring is mounted on the auxiliary reset shaft and connected to the inner wall of the housing. When the door is open, the coil spring is in a retracted state; when the door is closed, the coil spring is in a free state.

[0016] The beneficial effects of the automatically locking wind-resistant prefabricated substation provided in this application are as follows: Compared with the prior art, this application achieves automatic position locking of the door when it is opened to any specified angle or closed by setting multiple sets of positioning mechanisms at the rotating connection between the door and the enclosure. This eliminates the need for maintenance personnel to operate additional fixing components such as windproof hooks, significantly improving the timeliness and convenience of door fixing and avoiding safety hazards such as the door being accidentally blown closed in strong winds, bumping into workers, or obstructing work passages. Furthermore, the linkage design of the handle and unlocking components allows for simultaneous release of the locking state of all positioning mechanisms simply by turning the handle downwards. The operation logic is simple and intuitive, reducing the learning cost for maintenance personnel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an automatic locking wind-resistant prefabricated substation provided in this application embodiment. Figure 1 ; Figure 2 A schematic diagram of the structure of an automatic locking wind-resistant prefabricated substation provided in this application embodiment. Figure 2 ; Figure 3 This is a schematic diagram of the outer structure of the cabinet door provided in an embodiment of this application; Figure 4 This is a schematic diagram of the inner structure of the cabinet door provided in an embodiment of this application; Figure 5 This is a schematic diagram of the positioning mechanism in a locked state provided in the embodiments of this application; Figure 6 This is a schematic diagram of the positioning mechanism in the unlocked state provided in the embodiments of this application; Figure 7 for Figure 6 A partially enlarged schematic diagram of the insert plate and top plate provided in Part A; Figure 8 A vertical sectional view of the positioning mechanism provided in the embodiments of this application; Figure 9 for Figure 8 A partially enlarged schematic diagram of the retaining components and guide strip provided in Part B; Figure 10 This is a schematic diagram of the structure of the limiting component provided in the embodiments of this application; Figure 11This is a schematic diagram of the structure when the arc-shaped rack and auxiliary gear mesh, as provided in the embodiments of this application; Figure 12 This is a schematic diagram of the structure when the arc-shaped rack and auxiliary gear are separated, as provided in an embodiment of this application.

[0019] The labels for the attached figures are as follows: 1. Box body; 2. Box door; 3. Positioning mechanism; 31. Arc-shaped track; 311. Track groove; 312. Guide bar; 313. Positioning groove; 32. Reset assembly; 321. Fixing frame; 322. Reset spring; 33. Insert plate; 331. Receiving groove; 34. Top plate; 341. Positioning block; 35. Holding assembly; 351. Reinforcing rod; 352. Holding spring; 36. Auxiliary reset shaft; 37. Auxiliary gear; 38. Arc-shaped rack; 4. Handle; 5. Unlocking component; 51. Rotating shaft; 511. Through hole; 52. Guide wheel; 53. Pull rope; 54. Sliding rod; 55. Limiting spring; 56. Limiting component; 561. Limiting rod; 562. Limiting plate; 5621. Limiting groove. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be further noted that the accompanying drawings and embodiments of this application mainly describe the concept of this application. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this application, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0022] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] The present application provides a description of an automatic locking wind-resistant box-type substation.

[0024] like Figures 1 to 4 As shown, one embodiment of this application provides an automatically locking wind-resistant box-type substation, including a box body 1, a box door 2, a positioning mechanism 3, a handle 4, and an unlocking component 5.

[0025] The door 2 is rotatably connected to the box body 1 on one side; in this embodiment, the positioning mechanism 3 is provided in two sets facing each other, and the positioning mechanism 3 is located at the rotatable connection between the door 2 and the box body 1. The positioning mechanism 3 is used to automatically fix the position of the door 2 when the door 2 is opened at a specified angle or closed.

[0026] The handle 4 is rotated and mounted on the door 2; the unlocking component 5 is mounted on the door 2 and connected to the handle 4 and all positioning mechanisms 3. The unlocking component 5 is used to release all positioning mechanisms 3 from fixing the position of the door 2 when the handle 4 is rotated downward.

[0027] This embodiment provides an automatic locking wind-resistant prefabricated substation. Compared with existing technologies, by setting multiple sets of positioning mechanisms 3 at the rotatable connection between the door 2 and the enclosure 1, the automatic position locking of the door 2 at any specified angle or in a closed state is achieved. This eliminates the need for maintenance personnel to operate additional fixing components such as windproof hooks, significantly improving the timeliness and convenience of door 2 fixing. It also avoids safety hazards such as the door 2 being accidentally blown closed in strong winds, potentially causing injury to workers or obstructing access. Furthermore, the linkage design between the handle 4 and the unlocking component 5 allows for simultaneous release of the locking state of all positioning mechanisms 3 simply by turning the handle 4 downwards. The operation logic is simple and intuitive, reducing the learning cost for maintenance personnel.

[0028] like Figures 5 to 7 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The positioning mechanism 3 includes an arc-shaped track 31, a reset assembly 32, an insert plate 33, two top plates 34, and two sets of retaining assemblies 35.

[0029] The arc-shaped track 31 is located inside the door 2 and is coaxial with the rotation axis of the door 2. A track groove 311 is coaxially formed on the bottom surface of the arc-shaped track 31, and one end of the arc-shaped track 31 is fixed to the inner side wall of the door 2. The reset assembly 32 is located above the arc-shaped track 31. The insert plate 33 is vertically located directly below the track groove 311 and is fixed to the box body 1.

[0030] Two top plates 34 are hinged to both sides of the insert plate 33. The rotation axis of the top plates 34 is set horizontally. The two top plates 34 are used to insert into the track groove 311 and respectively press against the two arc-shaped inner sidewalls of the track groove 311. Two sets of retaining components 35 are connected to the two top plates 34 one-to-one and keep the top plates 34 in a retracted state before being inserted into the track groove 311.

[0031] The design of the arc-shaped track 31 rotating synchronously with the door 2 allows the track groove 311 to form a dynamic cooperation relationship with the fixed insert plate 33 on the box body 1. When the door 2 rotates, the insert plate 33 and the track groove 311 move relative to each other. The top plate 34 is in a retracted state before being inserted into the track groove 311 under the action of the retaining component 35, which avoids interference and jamming of components during rotation and ensures that the door 2 rotates smoothly without obstruction.

[0032] When the door 2 is at the target angle, the top plate 34 inserts into the track groove 311 and automatically presses against the two arc-shaped inner sidewalls of the track groove 311. The friction generated by the surface contact pressing is used to fix the position of the door 2. The reset component 32 ensures that the locking action is automatically triggered by manually turning the handle 4, and locking can be completed without an additional power source, resulting in higher structural reliability.

[0033] like Figures 7 to 8 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: Two guide bars 312 are coaxially arranged inside the track groove 311. The arc-shaped surfaces of the two guide bars 312 are inclined in opposite directions. The inclined surfaces of the guide bars 312 are used to press the top plate 34 toward the inner wall of the track groove 311 when the insert plate 33 is inserted into the track groove 311, so that the top plate 34 presses tightly against the inner wall of the track groove 311.

[0034] The two guide bars 312 have arc-shaped surfaces that are inclined in opposite directions. When the insert plate 33 is inserted into the track groove 311, it can generate a component force on the top plate 34 toward the inner wall of the track groove 311. Without additional driving components, it can automatically push the top plate 34 to unfold and press against the inner wall, converting the kinetic energy of the rotation of the box door 2 into the pressing force of the top plate 34, thus realizing the effect of adjusting the rotation state of the top plate 34.

[0035] like Figures 7 to 8 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The two arc-shaped inner sidewalls of the track groove 311 are provided with multiple vertically arranged positioning grooves 313 arranged in a circumferential array, and the bottom of the positioning grooves 313 is open; the top of the top plate 34 is provided with a positioning block 341 for inserting into the positioning grooves 313.

[0036] Multiple positioning slots 313 in the circumferential array correspond to different opening angles of the door 2. After the positioning block 341 is inserted into the positioning slot 313, it forms a hard limit, which can completely restrict the circumferential rotation of the door 2, and has a stronger anti-slip capability than friction locking. The design of multiple positioning slots 313 allows the door 2 to be fixed in multiple positions within the rotation range. Maintenance personnel can select the most suitable opening angle of the door 2 according to the operation requirements, adapting to the usage needs of different scenarios such as single-person operation, multi-person collaborative operation, and large equipment entry and exit. The design of the bottom opening of the positioning slot 313 also ensures that the positioning block 341 can be smoothly disengaged when unlocking without jamming, greatly improving the smoothness of the switching between locking and unlocking.

[0037] like Figure 7 and Figure 9 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The insert plate 33 has a receiving groove 331 on its side wall facing the top plate 34; the retaining assembly 35 includes a reinforcing rod 351 and a retaining spring 352.

[0038] One end of the reinforcing rod 351 is hinged to the top plate 34, and the other end is slidably disposed in the receiving groove 331. The rotation axis of the reinforcing rod 351 is parallel to the rotation axis of the top plate 34. The retaining spring 352 is vertically disposed in the receiving groove 331, with one end connected to the top wall of the receiving groove 331 and the other end connected to the reinforcing rod 351.

[0039] When the spring 352 is in a free state, the positioning block 341 is located directly below the track groove 311.

[0040] The reinforcing rod 351, together with the top plate 34 and the insert plate 33, forms a stable triangular support structure. In the locked state, it can transfer the circumferential load on the top plate 34 to the insert plate 33, preventing the top plate 34 from bending and deforming under strong wind loads, which could lead to locking failure. The retaining spring 352 ensures that the top plate 34 is always in a retracted state when not inserted into the track groove 311, preventing the top plate 34 from colliding with the edge of the track groove 311 during the rotation of the door 2, and ensuring smooth rotation of the door 2.

[0041] Simultaneously, when the top plate 34 is inserted into the track groove 311, an upward preload is provided to the top plate 34 to ensure that the positioning block 341 can be smoothly inserted into the positioning groove 313. The entire retaining assembly 35 is integrated into the receiving groove 331 of the insert plate 33, which is compact and does not occupy extra space, and is suitable for the narrow installation space at the rotating connection between the door 2 and the body 1.

[0042] In some possible embodiments, the retaining component 35 can be replaced by a torsion spring. By installing the torsion spring at the hinge of the top plate 34, the positioning block 341 is located directly below the track groove 311 when the torsion spring is in a free state. The specific structure of the retaining component 35 can be adapted according to the application area. For example, if the installation area of ​​the prefabricated substation is windy all year round, a combination of reinforcing rod 351 and retaining spring 352 can be used; if the installation area of ​​the prefabricated substation has a low wind frequency or low wind force, a torsion spring can be used.

[0043] like Figures 5 to 6 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The reset assembly 32 includes a fixing frame 321 and a reset spring 322. The fixing frame 321 is fixed to the inside of the door 2 and located directly above the arc-shaped track 31. The reset spring 322 is vertically disposed between the fixing frame 321 and the arc-shaped track 31. When the reset spring 322 is in a free state, the positioning block 341 is located in the positioning groove 313.

[0044] The cooperation between the fixing bracket 321 and the return spring 322 ensures that the arc track 31 is always pushed downward when there is no external force, so as to ensure that the positioning block 341 is firmly embedded in the positioning groove 313. Even if the vehicle passes by and vibrates, or the box 1 is shaken by the wind, the positioning block 341 will not come out of the positioning groove 313, and the anti-interference ability of the locked state is greatly improved.

[0045] The spring force of the reset spring 322 can be adjusted according to the usage scenario, which can balance the weight of the arc track 31 and the pulling force required for unlocking. This ensures that the locking is secure and does not require excessive operating force when unlocking, allowing maintenance personnel to complete the unlocking operation with one hand, making the operation more comfortable.

[0046] like Figure 4 and Figure 8 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The unlocking component 5 includes a pivot 51, guide wheels 52, and a pull rope 53. The pivot 51 is rotatably mounted and extends through the door 2, and the handle 4 is fixed to the pivot 51; there are multiple guide wheels 52, which are rotatably mounted on the inner wall of the door 2.

[0047] One end of the pull rope 53 is fixed to the circumference of the rotating shaft 51, and the other end is fixed to all the arc-shaped tracks 31 after passing through multiple guide wheels 52; in this embodiment, the pull rope 53 can be made of steel wire. The pull rope 53 located directly above the arc-shaped track 31 is vertical.

[0048] The combination of the rotating shaft 51, guide wheel 52 and pull rope 53 converts the rotation of the handle 4 into an upward lifting force of the arc track 31. When the handle 4 is rotated downward, all the arc tracks 31 are pulled upward simultaneously, allowing all the positioning blocks 341 to disengage from the positioning groove 313 at the same time. There is no need to unlock multiple sets of positioning mechanisms 3 one by one, greatly simplifying the operation steps.

[0049] The pull rope 53 above the curved track 31 remains vertical, ensuring that the direction of the pulling force is consistent with the direction of movement of the curved track 31, reducing power loss and lowering the force required to operate the handle 4. The purely mechanical transmission structure requires no electrical components and can still work stably in outdoor environments with high temperature, high humidity, and strong electromagnetic interference, making it more environmentally adaptable.

[0050] like Figure 10 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The rotating shaft 51 has a through hole 511 that runs coaxially through it; the unlocking assembly 5 also includes a sliding rod 54, a limiting spring 55 and a limiting assembly 56.

[0051] The sliding rod 54 is slidably disposed within the through hole 511 along the axial direction of the through hole 511. One end of the sliding rod 54 is located outside the door 2, and the other end is located inside the door 2. A limiting spring 55 is sleeved on the portion of the sliding rod 54 located inside the door 2. One end of the limiting spring 55 is connected to the rotating shaft 51, and the other end is connected to the end of the sliding rod 54.

[0052] A limiting component 56 is disposed between the inner end of the sliding rod 54 and the door 2, and is used to fix the rotating shaft 51 relative to the door 2. When the sliding rod 54 slides toward the inside of the door 2, the limiting component 56 releases the fixing of the rotating shaft 51.

[0053] Under normal conditions, the limiting component 56 fixes the rotating shaft 51 relatively to the door 2, preventing accidental unlocking of the positioning mechanism 3 due to accidental contact with the handle 4, thus eliminating the safety hazard of accidental closure of the door 2 during operation and maintenance. To unlock, simply press the sliding rod 54 inward to release the limiting mechanism; the operation logic is ergonomic. The limiting spring 55 ensures that after releasing the sliding rod 54, it automatically resets, causing the limiting component 56 to relock the rotating shaft 51. No additional operation is required to restore the protective state, making it more convenient to use.

[0054] like Figure 10 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The limiting assembly 56 includes a limiting rod 561 and a limiting plate 562. The limiting rod 561 is fixed to the inner circumferential surface of the sliding rod 54 and is perpendicular to the sliding rod 54. The limiting plate 562 is fixed to the inner side of the door 2 and has a limiting groove 5621 for the limiting rod 561 to be inserted.

[0055] The limiting rod 561 moves synchronously with the sliding rod 54. After being inserted into the limiting groove 5621 of the limiting plate 562, it can limit the rotation of the rotating shaft 51. The hard limiting structure will not slip or loosen, and can effectively withstand the force when the handle 4 is accidentally touched, thus preventing the rotating shaft 51 from rotating accidentally.

[0056] The structure is easy to manufacture and assemble, and the limiting accuracy will not decrease after long-term use. Its service life is consistent with that of the housing 1, and no regular maintenance or adjustment is required. The position of the limiting groove 5621 can be set according to the angle requirements of the unlocked state, and the stroke of the unlocking operation can also be customized according to the user's usage habits to adapt to different usage needs.

[0057] like Figures 11 to 12 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The positioning mechanism 3 also includes an auxiliary reset shaft 36, an auxiliary gear 37, an arc rack 38, and a coil spring (not shown in the figure).

[0058] The auxiliary reset shaft 36 is vertically rotatable inside the housing 1 and located inside the arc-shaped track 31; the auxiliary gear 37 is coaxially fixed on the auxiliary reset shaft 36.

[0059] The arc-shaped rack 38 is coaxially fixed on the arc-shaped track 31 and is always engaged with the auxiliary gear 37. The coil spring is set on the auxiliary reset shaft 36 and connected to the inner wall of the housing 1; in this embodiment, the coil spring can specifically be a clockwork spring.

[0060] When the door 2 is open, the coil spring is in a retracted state; when the door 2 is closed, the coil spring is in a free state.

[0061] As the arc-shaped rack 38 moves along the arc-shaped track 31, it drives the auxiliary gear 37 to rotate. When the door 2 opens, the coil spring contracts and stores elastic potential energy. After unlocking, the coil spring releases its potential energy, which can assist in automatically rotating the door 2 to the closed position. This eliminates the need for maintenance personnel to push or pull the door 2 forcefully, significantly reducing the difficulty of closing the door 2, especially in narrow working spaces. The auxiliary force of the coil spring also makes the closing process of the door 2 smoother.

[0062] The meshing transmission between the auxiliary gear 37 and the arc-shaped rack 38 also makes the movement of the arc-shaped track 31 smoother, reducing track deviation and jamming problems, and greatly improving the smoothness of the operation of the positioning mechanism 3.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0064] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. An automatic locking wind-resistant box-type substation, comprising a box body (1) and a box door (2), wherein one side of the box door (2) is rotatably connected to the box body (1); characterized in that, The automatic locking wind-resistant prefabricated substation also includes: The positioning mechanism (3) is set at the rotational connection between the door (2) and the box body (1). The positioning mechanism (3) is used to automatically fix the position of the door (2) when the door (2) is opened at a specified angle or closed. The handle (4) is rotatably mounted on the box door (2); and An unlocking component (5) is provided on the door (2) and connected to the handle (4) and all the positioning mechanisms (3). The unlocking component (5) is used to release the position fixation of the door (2) by all the positioning mechanisms (3) when the handle (4) is turned downward.

2. The automatic locking wind-resistant box-type substation as described in claim 1, characterized in that, The positioning mechanism (3) includes: An arc-shaped track (31) is located inside the box door (2) and is coaxial with the rotation axis of the box door (2). The bottom surface of the arc-shaped track (31) is coaxially provided with a track groove (311). One end of the arc-shaped track (31) is fixed to the inner wall of the box door (2). A reset assembly (32) is disposed above the arc-shaped track (31); The insert plate (33) is vertically positioned directly below the track groove (311) and fixed to the box body (1). Two top plates (34) are hinged to both sides of the insert plate (33), and the rotation axis of the top plates (34) is set horizontally. The two top plates (34) are used to insert into the track groove (311) and respectively press against the two arc-shaped inner sidewalls of the track groove (311); and Two sets of retaining components (35) are connected one-to-one with the two top plates (34) and the top plates (34) are in a retracted state before being inserted into the track groove (311).

3. The automatic locking wind-resistant box-type substation as described in claim 2, characterized in that, Two guide bars (312) are coaxially arranged inside the track groove (311). The arc surfaces of the two guide bars (312) are inclined in opposite directions. The inclined surfaces of the guide bars (312) are used to press the top plate (34) towards the inner wall of the track groove (311) when the insert plate (33) is inserted into the track groove (311), so that the top plate (34) presses against the inner wall of the track groove (311).

4. The automatic locking wind-resistant box-type substation as described in claim 2, characterized in that, The two arc-shaped inner sidewalls of the track groove (311) are provided with a plurality of vertically arranged positioning grooves (313) arranged in a circumferential array, and the bottom of the positioning grooves (313) is open; the top of the top plate (34) is provided with a positioning block (341) for inserting into the positioning grooves (313).

5. The automatic locking wind-resistant prefabricated substation as described in claim 4, characterized in that, The insert plate (33) has a receiving groove (331) on its side wall facing the top plate (34); the retaining assembly (35) includes: A reinforcing rod (351), one end of which is hinged to the top plate (34), and the other end of which is slidably disposed within the receiving groove (331), wherein the rotation axis of the reinforcing rod (351) is parallel to the rotation axis of the top plate (34); and A retaining spring (352) is vertically disposed in the receiving groove (331). One end of the retaining spring (352) is connected to the top wall inside the receiving groove (331), and the other end is connected to the reinforcing rod (351). When the retaining spring (352) is in a free state, the positioning block (341) is located directly below the track groove (311).

6. The automatic locking wind-resistant box-type substation as described in claim 4, characterized in that, The reset component (32) includes: A fixing bracket (321) is fixed to the inside of the box door (2) and located directly above the arc-shaped track (31); and A return spring (322) is vertically positioned between the fixed frame (321) and the arc-shaped track (31); When the reset spring (322) is in a free state, the positioning block (341) is located in the positioning groove (313).

7. The automatic locking wind-resistant prefabricated substation as described in claim 6, characterized in that, The unlocking component (5) includes: A rotating shaft (51) is rotatably mounted and passes through the box door (2), and the handle (4) is fixed on the rotating shaft (51); Multiple guide wheels (52) are rotatably mounted on the inner wall of the box door (2); and The pull rope (53) is fixed at one end to the circumference of the rotating shaft (51), and at the other end is fixed to all the arc-shaped tracks (31) after passing through multiple guide wheels (52). The pull rope (53) located directly above the arc track (31) is vertical.

8. The automatic locking wind-resistant box-type substation as described in claim 7, characterized in that, The rotating shaft (51) has a through hole (511) that runs coaxially through it; the unlocking component (5) also includes: A sliding rod (54) is slidably disposed in the perforation (511) along the axial direction of the perforation (511). One end of the sliding rod (54) is located outside the box door (2), and the other end is located inside the box door (2). A limiting spring (55) is sleeved on the portion of the sliding rod (54) located inside the door (2). One end of the limiting spring (55) is connected to the rotating shaft (51), and the other end is connected to the end of the sliding rod (54). A limiting component (56) is disposed between the inner end of the sliding rod (54) and the box door (2) for fixing the rotating shaft (51) relative to the box door (2). When the sliding rod (54) slides toward the inside of the box door (2), the limiting component (56) releases the fixation of the rotating shaft (51).

9. An automatically locking wind-resistant prefabricated substation as described in claim 8, characterized in that, The limiting component (56) includes: A limiting rod (561) is fixed to the inner circumferential surface of the sliding rod (54), and the limiting rod (561) is perpendicular to the sliding rod (54); and A limiting plate (562) is fixed inside the door (2), and a limiting groove (5621) is provided on the limiting plate (562) for the limiting rod (561) to be inserted.

10. An automatically locking wind-resistant prefabricated substation as described in claim 7, characterized in that, The positioning mechanism (3) also includes: An auxiliary reset shaft (36) is vertically rotatably disposed inside the housing (1) and located inside the arc-shaped track (31); The auxiliary gear (37) is coaxially fixed on the auxiliary reset shaft (36); An arc-shaped rack (38) is coaxially fixed on the arc-shaped track (31) and always meshes with the auxiliary gear (37); and A coil spring is disposed on the auxiliary reset shaft (36) and connected to the inner wall of the housing (1); When the box door (2) is in the open state, the coil spring is in the retracted state; when the box door (2) is in the closed state, the coil spring is in the free state.

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