A field maintenance fixture for electrical modules

Abstract

This utility model discloses a field maintenance fixture for electrical modules, including a base support and a load-bearing component. The base support has multiple height positioning parts arranged along its extension direction, and its bottom end has a top abutting part adapted to abut against the bottom of the cabinet at an angle. The load-bearing component has a fixing part, an adjusting part, and a load-bearing part. The adjusting part is adapted to selectively fix to different height positioning parts to correspond to different installation channels. The load-bearing part is configured to extend along a first direction and connect with the support part of the corresponding installation channel when the fixing part is fixed to the cabinet, the adjusting part is fixed to the height positioning parts, and the top abutting part abuts against the bottom of the cabinet at an angle, so as to cooperate to form a migration path for the electrical module. This utility model allows the electrical module to be pulled out without manual support even on uneven ground, reducing the risk of the electrical module falling during manual support.

Description

Technical Field

[0001] This utility model relates to the field of electrical maintenance technology, specifically to a field maintenance fixture for electrical modules. Background Technology

[0002] Electrical equipment commonly employs a modular design, with installation channels within the equipment cabinet. Electrical modules (such as energy storage battery packs, power supplies, and energy storage converter modules) are fixed within these channels. When maintenance is required, these modules must be removed from the installation channels. However, in outdoor work sites (such as on sandy or rocky ground), uneven surfaces make it difficult to stably operate forklifts or hoisting equipment. This forces operators to manually support the weight of the electrical modules during removal and move them to temporary support points next to the equipment before performing maintenance. This manual operation method lacks stable support points after the modules are completely detached from the installation channels, making them prone to tilting or slipping. The repeated adjustments required during transport increase the risk of impact and the workload on personnel. Furthermore, the lack of a connecting structure between the suspended modules and the installation channels results in poor operational stability and safety hazards. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background technology and provide a field maintenance fixture for electrical modules, so that no human support is needed to support the weight of the electrical modules during the pulling process, reducing the risk of the electrical modules falling when manually supported, especially reducing the risk of manual handling when the electrical modules are in a high position. It is particularly suitable for outdoor environments with uneven ground, where lifting forklifts or hoisting equipment cannot be operated stably.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Technical solution one relates to a field maintenance fixture for electrical modules, used to support electrical modules removed from the installation channel of an electrical cabinet. The electrical cabinet has an included angle at its bottom, and the installation channel extends along a first direction and is provided with a support portion suitable for supporting the electrical modules. The field maintenance fixture includes: a basic support member, which has multiple height positioning parts arranged along its extension direction, and a bottom end of which has a top abutting part suitable for abutting against the included angle of the cabinet bottom, and is suitable for tilting relative to the vertical direction when the height positioning parts are fixed and the top abutting part abuts against the included angle of the cabinet bottom; a load-bearing member, which has a fixing part, an adjusting part, and a load-bearing part, wherein the fixing part is suitable for detachably fixing to the front end of the cabinet at a set position; the adjusting part is suitable for selectively fixing to different height positioning parts to correspond to installation channels of different heights; the load-bearing part is configured to extend along the first direction and dock with the support portion of the corresponding installation channel when the fixing part is fixed to the cabinet, the adjusting part is fixed to the height positioning parts, and the top abutting part abuts against the included angle of the cabinet bottom, so as to cooperate to form a migration path for the electrical modules.

[0006] Technical Solution 2 based on Technical Solution 1: The adjustment part and the fixing part are respectively located at both ends near the extension direction of the bearing part.

[0007] Technical solution three based on technical solution two: The bearing part is provided with two guide rails arranged perpendicular to the second direction and at least two reinforcing ribs connecting the two guide rails, and each reinforcing rib is arranged at intervals along the extension direction of the guide rail; the second direction is perpendicular to the first direction when the bearing part extends along the first direction.

[0008] Technical solution four based on technical solution three: The basic support component includes two support rods spaced apart along the second direction, each support rod having several through holes along its extension direction, and the corresponding through holes on the two support rods forming the height positioning part; the adjustment part consists of two connecting holes respectively adapted to be connected to the two corresponding through holes by threaded connectors.

[0009] Technical solution five based on technical solution four: The guide rail is provided with a bearing wall and a limiting wall integrated with the bearing wall; the bearing wall and the reinforcing rib are both used to support the electrical module; the limiting wall is used to restrict the movement of the electrical module along the second direction; two connecting holes are respectively opened on the two limiting walls; the fixing part includes two fixing brackets respectively fixed to the outer side of the two guide rails.

[0010] Technical solution six based on technical solution five: The fixing frame is provided with a first fixing plate that is fitted and fixed to the limiting wall and a second fixing plate that is fitted and fixed to the front end of the cabinet. The first fixing plate and the second fixing plate are perpendicular to each other and integrally formed.

[0011] Technical solution seven based on technical solution six: the first fixing plate and the limiting wall cooperate to form a right-angled triangle structure; the second fixing plate and the first fixing plate form a right-angled triangle with the right-angled sides connected as one.

[0012] Technical solution eight based on technical solution seven: The second fixing plate includes two locking plates integrally formed at both ends of the right-angled sides of a right triangle formed with the first fixing plate, and the locking plates are suitable for locking with the front end of the cabinet.

[0013] Technical solution nine based on technical solution five: one of the reinforcing ribs is located at the end of the bearing part away from the fixing part, and the reinforcing rib is defined as the first reinforcing rib; the end of the bearing part away from the fixing part is also provided with an abutment wall for restricting the movement of the electrical module along the extension direction of the guide rail, the abutment wall extends along the second direction and is integrally formed with two limiting walls at both ends, and the abutment wall is also integrally formed with the first reinforcing rib.

[0014] Technical solution ten based on technical solution four: The basic support component is further provided with two connecting rods extending along the second direction. The two connecting rods are respectively located at both ends of the extension direction of the two support rods, and each connecting rod connects the ends of the two support rods; wherein the connecting rod located at the bottom end forms the top abutment.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0016] In technical solution one, "docking" refers to the coordinated matching relationship between the carrier and support parts through spatial position and functional plane, allowing the electrical module to move relative to the carrier and support parts. This allows for physical gaps between the carrier and support parts, and the physical gaps must be set such that when the electrical module passes through the gap, its center of gravity projection always lies on the carrier or support part. "Setting position" refers to the position where the carrier and support parts can dock and cooperate to form the migration path of the electrical module.

[0017] The basic support components are designed to be tilted relative to the vertical direction when the height positioning part is fixed and the top abutment part abuts against the cabinet bottom at an angle, giving the overall structure natural stability. The tilt angle creates a self-locking effect under gravity, significantly reducing structural complexity. The top abutment part directly abuts against the cabinet bottom at an angle, fully utilizing the cabinet's own structure for positioning constraints. The angle of the cabinet bottom is generally a right angle, while the top abutment part typically abuts against the two vertical planes of the angle. The vertical planes of the angle block lateral displacement in the first direction, and the horizontal planes restrict vertical downward displacement. This design eliminates the need for additional fixing devices; installation only requires alignment and pressing to complete the connection, greatly shortening operation time. Compared to abutting against the ground, abutting against the cabinet bottom ensures greater stability of on-site maintenance equipment, avoiding the risk of subsidence due to soft soil during grounding.

[0018] When the fixing part is fixed to the cabinet body, the adjusting part is fixed to the height positioning part, and the top abutment part abuts against the bottom of the cabinet, the three key connection points automatically form a right-angled triangle constraint system. This system forms a mechanical closed loop. The included angle of the bottom of the cabinet can limit the top abutment part in the first direction and the vertical direction, while the fixing part fixes the end of the load-bearing component. The fixing of the adjusting part and the height positioning part fixes the height positioning part and the adjusting part at the same time. The right-angled triangle structure makes each connection point mutually restrictive, generating anti-overturning force, so that the field maintenance tool is fixed relative to the cabinet body of the electrical cabinet.

[0019] Therefore, when maintenance of the electrical module is required, simply connect the adjusting part to the corresponding height positioning part, abut the top part to the bottom of the cabinet at an angle, and then connect the fixing part to the front end of the cabinet. This will allow the bearing part to connect with the support part of the corresponding installation channel, forming a migration path for the electrical module. The electrical module can then be pulled out from the installation channel onto the bearing part. After the maintenance of the electrical module is completed, it can be pushed back into the installation channel.

[0020] When maintenance is required on electrical modules at different heights, the height of the bearing unit can be changed by fixing the adjustment part to the positioning part at different heights, so that the bearing unit can be connected to the support part of different installation channels.

[0021] Therefore, in this technical solution, the included angle structure of the cabinet itself can be reused to fix the on-site maintenance fixture, and the right-angled triangle constraint system is used to make the fixture have a stable structure when it is installed in place, thereby ensuring stable support for the electrical module. This eliminates the need for manual support of the electrical module during the pulling process, reducing the risk of the electrical module falling when manually supported. In particular, it reduces the risk of needing to elevate the electrical module for manual handling when it is in a high position. Moreover, the maintenance fixture has a simple structure, low cost, and is easy to assemble and disassemble, making it especially suitable for outdoor environments with uneven ground where it is impossible to operate a lifting forklift or install hoisting equipment stably.

[0022] In technical solution two, the adjusting part and the fixed part are respectively located near the two ends of the extension direction of the bearing part, making the bearing part essentially a rigid force transmission side of the triangular constraint system. The weight (G) of the electrical module is directly transmitted along the axial direction of the bearing part to the adjusting part (point B) and the fixed part (point A), which helps to reduce the bending deformation of the bearing part and makes the tooling structure more stable. The length of the right-angled side of the right triangle formed by the bearing component remains unchanged. When the adjusting part is fixed to the height positioning part at different heights, the length of the hypotenuse of the right triangle formed by the base support and the included angle between the base support and the bearing component also change accordingly. For example, when the adjusting part is fixed to the height positioning part with a higher height, the length of the hypotenuse of the right triangle formed by the base support increases, and the included angle between the base support and the bearing component becomes larger; conversely, it becomes smaller. During the adjustment process, the top abutment adapts to the angle of the cabinet bottom and the two right-angled surfaces of the top abutment angle with the tilt angle, maintaining a constant contact pressure. The included angle always keeps the base support in a limited position, ensuring that the tooling is always in a stable state under sloping conditions.

[0023] In technical solution three, the guide rail is arranged along the second direction to form a transverse support frame, and the reinforcing ribs are arranged along the extension direction of the guide rail to form longitudinal reinforcing ribs, forming an orthogonal grid structure. This makes the load-bearing part have higher structural strength, and the grid structure is lighter in weight, which is more conducive to reducing the weight of the tooling. It can be manually transported to the vicinity of the electrical cabinet, making manual handling easier and reducing the maintenance difficulty of the electrical module.

[0024] In technical solution four, the corresponding through holes on the two support rods form a height positioning part, and the adjustment part consists of two connecting holes, each suitable for connection with the two corresponding through holes via threaded fasteners. The corresponding through hole configuration ensures the horizontality of the load-bearing part and simplifies the assembly and disassembly of the adjustment part and the height positioning part. This allows the adjustment part to be fixed to different height positioning parts as needed. Furthermore, the structure of the base support component makes it lighter, further reducing the weight of the tooling. In addition, it also forms a triangular constraint structure on each side of the tooling along the second direction. The two triangular constraint structures are then connected through the load-bearing part, making the tooling structure more stable.

[0025] In technical solution five, the guide rail structure supports and limits the electrical module. Two connection holes are respectively opened on two limiting walls, and two support rods can support the two guide rails through the connection holes. The fixing part includes two fixing brackets that are fixed to the outer sides of the two guide rails respectively. Therefore, the three connection points of the triangular constraint formed by the tooling along the second direction are also basically located on the same side, further making the tooling structure more stable and simpler. In addition, the fixing brackets are fixed to the outer sides of the guide rails, avoiding interference with the movement of the electrical module.

[0026] In technical solution six, the structure of the fixing frame is simple and easy to process. The fixing force of the second fixing plate fixed to the front end of the cabinet can be directly transmitted to the guide rail through the first fixing plate, which is more conducive to reducing the height difference when the load-bearing part and the support part are connected. The design of the second fixing plate fitting to the front end of the cabinet can also prevent the load-bearing parts from rotating and improve the stability of the tooling.

[0027] In technical solution seven, the first fixing plate and the limiting wall cooperate to form a right-angled triangle structure, and the second fixing plate and the first fixing plate form a right-angled triangle with the right-angled sides connected as one, which can better transmit the fixing force of the second fixing plate to the guide rail, and make the fixing frame form a stable structure. It is not easy for the fixture to become unstable due to uneven force deformation when the electrical module is just pulled out, thereby further reducing the height difference when the bearing part and the support part are connected, thus ensuring the stability of the fixture.

[0028] In technical solution eight, the second fixing plate includes two locking plates integrally formed at both ends of the right-angled sides of a right triangle formed with the first fixing plate. Therefore, the fixing part is fixed to the cabinet at the upper end of the guide rail and at the guide rail. When the electrical module moves to the bearing part, the weight of the electrical module and the two fixing points of the fixing frame also form a triangular force distribution, further preventing the bearing part from rotating and making the tooling structure more stable.

[0029] In technical solution nine, the abutment wall can restrict the electrical module from detaching from the bearing part in the first direction. The abutment wall is integrally formed with the two limiting walls and the abutment wall is integrally formed with the first fixing plate, so that the end of the bearing part away from the fixing part has higher strength. This makes the connection between the adjusting part and the base support more stable, and the tooling has higher strength and is not easily deformed.

[0030] In technical solution ten, the arrangement of two connecting rods and two support rods enables the basic support component to form a closed rectangular frame, thereby improving the overall strength of the basic support component. The bottom connecting rod, as the top abutment, can evenly distribute the counter-pressure of the cabinet bottom angle to the double support rods, thereby transmitting it to the adjustment part and evenly distributing it to both sides of the tooling along the second direction, making the tooling more evenly stressed. It also makes the top abutment part form a line contact with the cabinet bottom angle, making the support of the basic support component more stable. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a partial schematic diagram of the electrical cabinet according to an embodiment of the present utility model;

[0033] Figure 2 A three-dimensional schematic diagram of the tooling according to an embodiment of this utility model. Figure 1 ;

[0034] Figure 3 for Figure 2 An enlarged schematic diagram of part A;

[0035] Figure 4 for Figure 2 Side view;

[0036] Figure 5 A three-dimensional schematic diagram of the tooling according to an embodiment of this utility model. Figure 2 The adjusting part is fixedly connected to another height positioning part;

[0037] Figure 6 This is a schematic diagram showing the connection between the adjustment part and different height positioning parts in an embodiment of the present invention.

[0038] Explanation of key figure labels:

[0039] Electrical cabinet 10; installation channel 11; included angle 12; base support 20; support rod 21; through hole 211; connecting rod 22; top abutment 23; height positioning part 24; bearing member 30; fixing part 31; fixing frame 311; first fixing plate 312; first fixing edge 3121; second fixing edge 3122; second fixing plate 313; locking plate 3131; adjusting part 32; connecting hole 321; bearing part 33; guide rail 331; bearing wall 3311; limiting wall 3312; reinforcing rib 332; first reinforcing rib 333; abutment wall 334. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0042] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0043] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0044] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0045] See Figure 1-4 , Figure 1 Electrical cabinet 10 is shown. Figure 2-4 A field maintenance fixture for electrical modules is shown, used to carry electrical modules (not shown) removed from the mounting channel 11 of electrical cabinet 10. See [reference needed] Figure 1The electrical cabinet 10 has an included angle 12 at its bottom. The mounting channel 11 extends along a first direction and is equipped with a support suitable for supporting electrical modules. The support is generally two slide rails extending along the first direction, arranged in a second direction perpendicular to the first direction. In practical applications, the first direction is also the length direction of the mounting channel 11, and the width direction of the mounting channel 11 is the second direction. The electrical cabinet 10 has mounting channels 11 arranged in a rectangular array on its body. Each mounting channel 11 generally has multiple through holes at its front end and / or rear end along the first direction and at both ends along the second direction. These through holes can be locked with the fixing bracket 311 described below. It should be understood that when both ends of the mounting channel 11 are open along the first direction, the included angle 12 can be set at both ends of the cabinet bottom along the first direction. When only one end of the mounting channel 11 is open along the first direction, the included angle 12 of the cabinet bottom is set on the same side as the open side of the mounting channel 11. The included angle 12 of the cabinet bottom is generally formed by the bottom support of the electrical cabinet 10. It should be understood that in this embodiment, the first direction and the second direction can be the width direction and the length direction of the electrical cabinet 10, respectively. The vertical direction is based on the mounting plane of the electrical cabinet 10 base and is parallel to the direction of gravity. The horizontal plane is the plane parallel to the base plane.

[0046] See Figure 2-4 The on-site maintenance equipment includes a basic support component 20 and a load-bearing component 30.

[0047] The basic support member 20 is provided with multiple height positioning parts 24 along its extension direction, and its bottom end is provided with a top abutting part 23 adapted to abut against the cabinet bottom at an angle 12. This top abutting part 23 is adapted to be inclined relative to the vertical direction when the height positioning part 24 is fixed and the top abutting part 23 abuts against the cabinet bottom at an angle 12. In this embodiment, the basic support member 20 includes two support rods 21 spaced apart along a second direction. Each support rod 21 is provided with several through holes 211 along its extension direction, and the corresponding through holes 211 on the two support rods 21 form the height positioning parts 24. The support rods 21 have an L-shaped structure, and the through holes 211 are formed on the vertical wall of the support rods 21. In this embodiment, the basic support member 20 also provides two connecting rods 22 extending along the second direction. The two connecting rods 22 are respectively located at both ends of the extension direction of the two support rods 21, and each connecting rod 22 connects the ends of the two support rods 21. The connecting rod 22 at the bottom end forms the top abutting part 23. In this embodiment, the connecting rod 22 also has an L-shaped structure. It should be understood that the spacing between the two support rods 21 should be similar to the width of the installation channel 11 along the second direction. Specifically, the height positioning parts 24 at the bottom and top of each support rod 21 maintain a certain distance from their corresponding connecting rods 22.

[0048] The support member 30 is provided with a fixing part 31, an adjusting part 32, and a support part 33. The fixing part 31 is adapted to be detachably fixed to the front end of the cabinet at a set position. "Set position" means that the support part 33 can dock with the support part and cooperate to form an electrical module migration path. The adjusting part 32 is adapted to be selectively fixed to different height positioning parts 24 to correspond to different height installation channels 11. The support part 33 is configured to extend along the first direction and dock with the support part of the corresponding installation channel 11 when the fixing part 31 is fixed to the cabinet, the adjusting part 32 is fixed to the height positioning part 24, and the angle 12 between the top part 23 and the bottom of the cabinet is abutted. This docks with the support part of the corresponding installation channel 11 to form an electrical module migration path. "Docks" means that the support part 33 and the support part form a cooperative matching relationship through spatial position and functional plane, so that the electrical module can move relative to the support part 33 and the support part. It allows a physical gap between the support part 33 and the support part. The physical gap must be set to ensure that when the electrical module passes through the gap section, its center of gravity projection is always located on the support part 33 or the support part. The adjustment part 32 and the fixing part 31 are respectively provided near the two ends of the extension direction of the bearing part 33.

[0049] In this embodiment, the support portion 33 is provided with two guide rails 331 arranged in a second direction and at least two reinforcing ribs 332 connecting the two guide rails 331. Each reinforcing rib 332 is spaced apart along the extension direction of the guide rail 331. The second direction is perpendicular to the first direction when the support portion 33 extends along the first direction. The guide rail 331 is provided with a support wall 3311 and a limiting wall 3312 integrally connected to the support wall 3311. Both the support wall 3311 and the reinforcing ribs 332 are used to support the electrical module. The limiting wall 3312 is used to restrict the movement of the electrical module along the second direction. One of the reinforcing ribs 332 is located at the end of the bearing portion 33 away from the fixing portion 31, and this reinforcing rib 332 is defined as the first reinforcing rib 333; the end of the bearing portion 33 away from the fixing portion 31 is also provided with an abutment wall 334 for restricting the movement of the electrical module along the extension direction of the guide rail 331. The abutment wall 334 extends along the second direction and its two ends are integrally formed with the two limiting walls 3312 respectively. The abutment wall 334 is also integrally formed with the first reinforcing rib 333. Figure 2 In this design, there are three reinforcing ribs 332, but it should be understood that the number of reinforcing ribs 332 can be set as needed.

[0050] The adjusting part 32 consists of two connecting holes 321, each adapted to connect with a corresponding through hole 211 via a threaded connector. The connecting holes 321 are locked to the through hole 211 at a selected height position via threaded connectors, and the two connecting holes 321 are respectively located on two limiting walls 3312. It should be noted that those skilled in the art will understand that the detachable connection between the adjusting part 32 and the height positioning part 24 is not limited to a threaded connection. In other embodiments, the height positioning part 24 can be configured as a continuous toothed track extending along the support rod 21. In this case, the adjusting part 32 is replaced by a spring-loaded latch with a built-in return spring, which engages with the toothed track to form a sliding latch-type locking structure. Other mechanical, hydraulic, or pneumatic locking structures that can rigidly fix the adjusting part 32 to the selected height positioning part 24 are equivalent replacements in this embodiment.

[0051] The fixing part 31 includes two fixing brackets 311, which are respectively fixed to the outer sides of the two guide rails 331. See also Figure 3 The fixing frame 311 is provided with a first fixing plate 312 that is fitted and fixed to the limiting wall 3312 and a second fixing plate 313 that is adapted to be fitted and fixed to the front end of the cabinet. The first fixing plate 312 and the second fixing plate 313 are perpendicular to each other and integrally formed. The first fixing plate 312 and the limiting wall 3312 cooperate to form a right-angled triangle structure; the second fixing plate 313 and the first fixing plate 312 form the right-angled triangle with the right-angled side connected as one piece. The first fixing plate 312 has a first fixing side 3121 extending vertically and a second fixing side 3122 extending obliquely, and a portion of the limiting wall 3312 forms the other right-angled side of the right-angled triangle. The second fixing plate 313 includes two locking plates 3131 integrally formed at both ends of the right-angled side of the right-angled triangle formed with the first fixing plate 312. The locking plates 3131 are adapted to be locked to the front end of the cabinet. In this embodiment, the second fixing plate 313 and the first fixing side 3121 are integrally formed. In practical applications, the two fixing brackets 311 of the fixing part 31 are respectively fixed to the two sides of the front end of the mounting channel 11 along the second direction.

[0052] In practical applications, the spacing of each height positioning part 24 must meet the following requirements: when the fixing part 31 is fixed to the cabinet body, the adjusting part 32 is fixed to the height positioning part 24, and the top abutment part 23 abuts against the bottom of the cabinet, see [reference needed]. Figure 5-6 When the adjustment part 32 moves upward to a height positioning part 24, the height of the bearing part 33 also moves accordingly to the height of the support part of the previous installation channel 11, and vice versa.

[0053] In this embodiment, the base support 20 is adapted to tilt relative to the vertical direction when the height positioning part 24 is fixed and the top abutment part 23 abuts against the cabinet bottom at an angle 12, so that the overall structure gains natural stability. Its tilt angle forms a self-locking effect under the action of gravity, which greatly reduces the complexity of the structure. The top abutment part 23 directly abuts against the cabinet bottom at an angle 12, making full use of the cabinet's own structure to achieve positioning constraints. The cabinet bottom angle 12 is generally a right angle, and the top abutment part 23 generally abuts against the two vertical planes of the angle. The vertical plane of the angle 12 blocks the lateral displacement in the first direction, and the horizontal plane restricts the vertical downward displacement. This design eliminates the need for additional fixing devices. During installation, only alignment and pressing are required to complete the connection, which greatly shortens the operation time. Compared with the top abutment part 23 abutting against the ground, it is easier to ensure the stability of the on-site maintenance equipment and avoid the risk of subsidence caused by soft soil when grounding.

[0054] When the fixing part 31 is fixed to the cabinet body, the adjusting part 32 is fixed to the height positioning part 24, and the top abutting part 23 abuts against the bottom of the cabinet, the three key connection points automatically construct a right-angled triangle constraint system. This system forms a mechanical closed loop. The included angle 12 of the bottom of the cabinet can limit the top abutting part 23 in the first direction and the vertical direction, while the fixing part 31 fixes the end of the bearing member 30. The fixing of the adjusting part 32 and the height positioning part 24 makes the height positioning part 24 and the adjusting part 32 fixed at the same time. The right-angled triangle structure makes each connection point mutually restrictive, generating an anti-overturning force, so that the field maintenance tool is fixed relative to the cabinet body of the electrical cabinet 10.

[0055] Therefore, when the electrical module needs maintenance, simply connect the adjusting part 32 to the corresponding height positioning part 24, abut the top part 23 to the bottom of the cabinet at the angle 12, and then connect the fixing part 31 to the front end of the cabinet so that the bearing part 33 can be connected to the support part of the corresponding installation channel 11 to form an electrical module migration path. The electrical module can then be pulled out from the installation channel 11 onto the bearing part 33. After the electrical module maintenance is completed, the electrical module can be pushed back into the installation channel 11.

[0056] When maintenance is required for electrical modules at different heights, the height of the bearing part 33 can be changed by fixing the adjustment part 32 to the positioning part 24 at different heights, so that the bearing part 33 can be connected to the support part of different installation channels 11.

[0057] Therefore, in this technical solution, the included angle 12 structure of the cabinet itself can be reused to fix the on-site maintenance fixture, and the right-angled triangle constraint system is used to make the fixture have a stable structure when it is installed in place, thereby ensuring stable support for the electrical module. This eliminates the need for manual support of the electrical module during the pulling process, reducing the risk of the electrical module falling when manually supported. In particular, it reduces the risk of needing to raise the electrical module for manual handling when it is in a high position. Moreover, the maintenance fixture has a simple structure, low cost, and is easy to assemble and disassemble, making it especially suitable for outdoor environments with uneven ground where it is impossible to operate a lifting forklift or install hoisting equipment stably.

[0058] In this embodiment, the adjustment part 32 and the fixing part 31 are respectively arranged close to the two ends of the extension direction of the bearing part 33, so that the bearing part 33 essentially becomes the rigid force transmission side of the triangular constraint system. The gravity (G) of the electrical module is directly transmitted along the axial direction of the bearing part 33 to the adjustment part 32 (point B) and the fixing part 31 (point A), which helps to reduce the bending deformation of the bearing part 33 and makes the structure of the tooling more stable. The length of the right-angled side of the right triangle formed by the support member 30 remains unchanged. When the adjustment part 32 is fixed to the height positioning part 24 at different heights, the length of the hypotenuse of the right triangle formed by the base support member 20 and the included angle 12 formed by the base support member 20 and the support member 30 also change accordingly. For example, when the adjustment part 32 is fixed to the height positioning part 24 at a higher height, the length of the hypotenuse of the right triangle formed by the base support member 20 and the included angle 12 formed by the base support member 20 and the support member 30 become larger; conversely, they become smaller. During the adjustment process, the top abutment part 23 adapts to the angle 12 of the cabinet bottom and abuts the two right-angled surfaces of the angle, maintaining constant contact pressure. The included angle 12 always keeps the base support member 20 in a limited position, ensuring that the tooling is always in a stable state under sloping conditions.

[0059] In this embodiment, the guide rail 331 is arranged along the second direction to form a transverse support frame, and the reinforcing rib 332 is arranged along the extension direction of the guide rail 331 to form a longitudinal reinforcing rib, forming an orthogonal grid structure, which makes the bearing part 33 have higher structural strength, and the grid structure is lighter, which is more conducive to reducing the weight of the tooling. It can be manually transported to the vicinity of the electrical cabinet 10, making manual handling easier, thereby reducing the maintenance difficulty of the electrical module.

[0060] In this embodiment, the corresponding through holes 211 on the two support rods 21 form height positioning parts 24. The adjustment part 32 consists of two connecting holes 321, each adapted to be connected to the two corresponding through holes 211 via threaded connectors. The corresponding through holes 211 ensure that the bearing part 33 is horizontal, and also simplify the disassembly and assembly steps of the adjustment part 32 and the height positioning part. This allows the adjustment part 32 to be fixedly connected to different height positioning parts 24 as needed. Furthermore, the structure of the base support 20 makes it lighter, further reducing the weight of the tooling. In addition, a triangular constraint structure is formed on each side of the tooling along the second direction. The two triangular constraint structures are then connected through the bearing part 33, making the tooling structure more stable.

[0061] In this embodiment, the structure of the guide rail 331 enables support and positioning of the electrical module. Two connecting holes 321 are respectively opened on two limiting walls 3312. Two support rods 21 can support the two guide rails 331 through the connecting holes 321. The fixing part 31 includes two fixing brackets 311 respectively fixed to the outer sides of the two guide rails 331. Therefore, the three connection points of the triangular constraint formed by the tooling along both sides of the second direction are basically located on the same side, further making the tooling structure more stable and simpler. Furthermore, the fixing brackets 311 are fixed to the outer sides of the guide rails 331, avoiding interference with the movement of the electrical module.

[0062] In this embodiment, the structure of the fixing frame 311 is simple and easy to process. The fixing force of the second fixing plate 313 fixed to the front end of the cabinet can be directly transmitted to the guide rail 331 through the first fixing plate 312, which is more conducive to reducing the height difference when the bearing part 33 and the support part are connected. The design of the second fixing plate 313 fitting close to the front end of the cabinet can also prevent the bearing part 30 from rotating and improve the stability of the tooling.

[0063] In this embodiment, the first fixing plate 312 and the limiting wall 3312 cooperate to form a right-angled triangle structure, and the second fixing plate 313 and the first fixing plate 312 form a right-angled triangle with the right-angled side connected as one, which can better transmit the fixing force of the second fixing plate 313 to the guide rail 331, and make the fixing frame 311 form a stable structure. It is not easy for the fixture to become unstable due to uneven force deformation when the electrical module is just pulled out, thereby further reducing the height difference between the bearing part 33 and the support part when they are connected, thus ensuring the stability of the fixture.

[0064] In this embodiment, the second fixing plate 313 includes two locking plates 3131 integrally formed at both ends of the right-angled sides of a right triangle formed with the first fixing plate 312. Therefore, the fixing part 31 is fixed to the cabinet at the upper end of the guide rail 331 and at the guide rail 331. When the electrical module moves to the bearing part 33, the weight of the electrical module and the two fixing points of the fixing frame 311 also form a triangular force distribution, further preventing the bearing part 30 from rotating, making the tooling structure more stable.

[0065] In this embodiment, the abutment wall 334 can restrict the electrical module from detaching from the bearing part 33 in the first direction. The abutment wall 334 is integrally formed with the two limiting walls 3312 and the first fixing plate 312, so that the end of the bearing member 30 away from the fixing part 31 has higher strength. This makes the connection between the adjusting part 32 and the base support member 20 more stable, and the tooling has higher strength and is not easily deformed.

[0066] In this embodiment, the arrangement of two connecting rods 22 and two support rods 21 enables the basic support member 20 to form a closed rectangular frame, thereby improving the overall strength of the basic support member 20. The bottom connecting rod 22 serves as the top abutment part 23, which can evenly distribute the counter pressure of the cabinet bottom angle 12 to the double support rods 21, thereby transmitting it to the adjustment part 32, and evenly distributing it to both sides of the tooling along the second direction, making the tooling more evenly stressed. It also makes the top abutment part 23 form a line contact with the cabinet bottom angle 12, making the support of the basic support member 20 more stable.

[0067] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A field maintenance tool for electrical modules for carrying electrical modules removed from a mounting channel (11) of an electrical cabinet (10), the cabinet bottom of which is provided with a corner (12), the mounting channel (11) extending in a first direction and being provided with a support portion adapted to support the electrical module, characterized in that, The on-site maintenance fixtures include: The base support (20) is provided with a plurality of height positioning parts (24) along the extension direction, and its bottom end is provided with a top abutting part (23) adapted to abut against the angle (12) of the cabinet bottom. It is adapted to be inclined relative to the vertical direction when the height positioning part (24) is fixed and the top abutting part (23) abuts against the angle (12) of the cabinet bottom. The support member (30) is provided with a fixing part (31), an adjusting part (32) and a support part (33). The fixing part (31) is adapted to be detachably fixed to the front end of the cabinet at a set position. The adjusting part (32) is adapted to be selectively fixed to different height positioning parts (24) to correspond to different height installation channels (11). The support part (33) is configured to extend along a first direction and dock with the support part of the corresponding installation channel (11) when the fixing part (31) is fixed to the cabinet, the adjusting part (32) is fixed to the height positioning part (24) and the angle (12) between the abutting part (23) and the bottom of the cabinet is abutted, so as to cooperate with it to form an electrical module migration path.

2. A field maintenance tool for an electrical module as recited in claim 1, wherein, The adjustment part (32) and the fixing part (31) are respectively disposed near the two ends of the extension direction of the bearing part (33).

3. A field maintenance tool for an electrical module as recited in claim 2, wherein, The bearing portion (33) is provided with two guide rails (331) arranged along the second direction and at least two reinforcing ribs (332) connecting the two guide rails (331). Each reinforcing rib (332) is arranged at intervals along the extension direction of the guide rail (331). The second direction is perpendicular to the first direction when the bearing portion (33) extends along the first direction.

4. A field maintenance tool for an electrical module as recited in claim 3, wherein, The basic support member (20) includes two support rods (21) spaced apart along the second direction. Each support rod (21) has several through holes (211) along its extension direction. The corresponding through holes (211) on the two support rods (21) form the height positioning part (24). The adjustment part (32) consists of two connecting holes (321) that are respectively adapted to be connected to the two corresponding through holes (211) by threaded connectors.

5. The field maintenance fixture for electrical modules as described in claim 4, characterized in that, The guide rail (331) is provided with a bearing wall (3311) and a limiting wall (3312) integrated with the bearing wall (3311); the bearing wall (3311) and the reinforcing rib (332) are both used to support the electrical module; the limiting wall (3312) is used to restrict the movement of the electrical module in the second direction; two connecting holes (321) are respectively opened on the two limiting walls (3312); the fixing part (31) includes two fixing brackets (311) respectively fixed to the outer side of the two guide rails (331).

6. The field maintenance fixture for electrical modules as described in claim 5, characterized in that, The fixing frame (311) is provided with a first fixing plate (312) that is fitted and fixed to the limiting wall (3312) and a second fixing plate (313) that is fitted and fixed to the front end of the cabinet. The first fixing plate (312) and the second fixing plate (313) are perpendicular to each other and integrally formed.

7. The field maintenance fixture for electrical modules as described in claim 6, characterized in that, The first fixing plate (312) and the limiting wall (3312) cooperate to form a right-angled triangle structure; the second fixing plate (313) and the first fixing plate (312) form a right-angled triangle with the right-angled sides connected as one.

8. The field maintenance fixture for electrical modules as described in claim 7, characterized in that, The second fixing plate (313) includes two locking plates (3131) integrally formed at both ends of the right-angled sides of a right triangle formed with the first fixing plate (312), and the locking plates (3131) are adapted to be locked to the front end of the cabinet.

9. The field maintenance fixture for electrical modules as described in claim 5, characterized in that, One of them A reinforcing rib (332) is located at the end of the bearing portion (33) away from the fixing portion (31), and the reinforcing rib (332) is defined as the first reinforcing rib (333). The end of the bearing portion (33) away from the fixing portion (31) is also provided with an abutment wall (334) for restricting the movement of the electrical module along the extension direction of the guide rail (331). The abutment wall (334) extends along the second direction and is integrally formed with two limiting walls (3312) at both ends. The abutment wall (334) is also integrally formed with the first reinforcing rib (333).

10. The field maintenance fixture for electrical modules as described in claim 4, characterized in that, The basic support member (20) is also provided with two connecting rods (22) extending along the second direction. The two connecting rods (22) are respectively located at both ends of the extension direction of the two support rods (21), and each connecting rod (22) connects the ends of the two support rods (21); wherein the connecting rod (22) located at the bottom end forms the top abutment (23).

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