Support frame for operation and maintenance of power transformation
The design of the double lifting bracket and retractable ground support mechanism solves the swaying and stability problems of the substation maintenance support frame during the lifting process, improves the safety and flexibility of the substation maintenance support frame, and expands its application scope.
Patent Information
- Application Number
- CN202520105383.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing substation maintenance support frames are prone to swaying from side to side due to excessive inertia during use, resulting in unstable lifting and lowering operations and increasing operational risks. They also have shortcomings in ground support and mobility, which limit their applicability and flexibility.
It adopts a dual lifting bracket design, including two scissor-type lifting mechanisms and a retractable ground support mechanism. Stable lifting is achieved by driving the fork arm assembly with hydraulic cylinders. Combined with foldable connecting plates and self-locking casters, the stability and flexibility of the support frame are improved.
It enables stable lifting and lowering of the support frame, increases safety and load-bearing capacity, improves stability and ease of movement on the ground, and expands the scope of application.
Smart Images
Figure CN223688068U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of power transformation operation and maintenance, in particular to a support frame for power transformation operation and maintenance. BACKGROUND
[0002] In the power transformation operation and maintenance work, the support frame is an indispensable auxiliary tool, which is mainly used for high-altitude operation and maintenance of power equipment.
[0003] The power transformation operation and maintenance operation usually needs to be carried out at a high place, and the safety protection of the workers is very important. In the use process of the existing power transformation operation and maintenance support frame, due to the large inertia effect, left and right shaking is easy to occur, which leads to unstable lifting operation and increases the operation risk. In addition, the existing support frame also has defects in ground support and mobility, which limits its application range and flexibility.
[0004] The utility model aims at providing a support frame for power transformation operation and maintenance to solve the problems mentioned in the background. UTILITY MODEL CONTENTS
[0005] In order to achieve the above-mentioned purpose, the utility model provides a support frame for power transformation operation and maintenance, which comprises a base, a double-lifting support, a working platform and a ground support mechanism. The base is uniformly distributed with self-locking universal wheels at the bottom. The double-lifting support is installed on the top surface of the base. The working platform is installed on the top of the double-lifting support.
[0006] The double-lifting support is composed of two scissor-type lifting mechanisms. The scissor-type lifting mechanism comprises at least two fork arm groups and two hydraulic cylinders. The two fork arm groups are connected with each other in the vertical direction. The bottom of one side of the lower fork arm group is fixedly connected with the base, and the other side is slidably connected with the base. The upper fork arm group is slidably connected and fixedly connected with the bottom of the working platform at positions corresponding to the movable end and the fixed end of the lower fork arm group. The hydraulic cylinders are symmetrically installed on the side where the fork arm group slides, and the bottom of the hydraulic cylinder is movably connected with the bottom of the fork arm group. The extension end of the hydraulic cylinder is movably connected with the top end of the fixed side of the fork arm group.
[0007] The ground support mechanism is installed in the base. The ground support mechanism comprises a plurality of connecting plates, support rods and mounting plates. The base is provided with movable grooves around the periphery, and each movable groove is communicated with each other. The mounting plate is installed in the center of the base. The plurality of connecting plates are uniformly distributed at the four corners of the mounting plate and are rotatably connected with the mounting plate. The end of each connecting plate is detachably connected with the support rod. The support rod supports the ground. Through the design of the double-lifting support, the stability and safety of the overall lifting of the support frame are improved. The design of the collapsible ground support mechanism enables the support frame to be firmly supported on the ground when needed, thereby increasing the stability and carrying capacity of the support frame. The foldable design also improves the flexibility and application range of the support frame.
[0008] As a further improvement of the utility model, the lower fork arm group movable end bottom is connected with a sliding block one, the sliding block one is slidingly connected with a sliding rail one, and the sliding rail one is fixedly installed on the base.
[0009] As a further improvement of the utility model, the working platform bottom is provided with a plurality of sliding rails two, and each sliding rail two is slidingly installed with a sliding block two, and the sliding block two is connected with the upper fork arm group movable end, so that the fork arm can be more stably moved when being stretched by the hydraulic cylinder.
[0010] As a further improvement of the utility model, the working platform top is provided with a guardrail, and the working platform top is also installed with a tool box and a control switch for controlling the lifting of the two scissor type lifting mechanisms, so that the user can be effectively protected, and the maintenance operation tool of the power equipment can be provided, and the control switch can control the hydraulic cylinder to adjust the height of the support frame, which is beneficial to maintenance.
[0011] As a further improvement of the utility model, one side of the movable groove is provided with a limiting mechanism, and the limiting mechanism is used for limiting and locking the unfolded connecting plate, and the limiting mechanism comprises a push rod, a control spring and a limiting column, the push rod top end is fixedly installed with a control handle, the control handle bottom is symmetrically provided with a fixed pin, the base top is provided with a fixed hole matched with the fixed pin, the base is provided with a circular groove, the lower side of the circular groove is provided with a limiting groove, the diameter of the circular groove is smaller than that of the limiting groove, the push rod is inserted into the circular groove from the base top and extends into the limiting groove and is fixedly connected with the limiting column top, the control spring cover is arranged on the push rod outer wall and located in the limiting groove, and the control spring top is fixedly connected with the limiting groove top wall, the bottom is rotatably connected with the limiting column top, and the limiting hole is arranged on the same vertical line with the limiting column in the movable groove, and the connecting block is locked and fixed through the cooperation of the limiting column and the limiting hole, and through the design, when the ground support mechanism is used, the connecting plate is unfolded outwardly around the shaft and abuts against the movable groove inner wall, the control handle is rotated until the fixed pin on the control handle is rotated to the fixed hole, the fixed pin is inserted into the fixed hole under the action of the control spring, at the same time, the limiting column at the push rod bottom is inserted into the limiting hole in the movable groove, so that the connecting plate is limited and fixed, the connecting plate is prevented from rotating, and the ground support of the support rod is facilitated.
[0012] As a further improvement of the utility model, the mounting plate four corners are provided with connecting shafts, and the connecting plate one end is rotatably connected with the connecting shaft, and the connecting plate is rotatably folded into the movable groove, so that the connecting plate folding storage and stretching are facilitated.
[0013] As a further improvement of the utility model, a threaded hole is formed at the end of the connecting plate away from the mounting plate, a threaded part matched with the threaded hole is arranged on the outer wall of the supporting rod, and a rubber pad is further arranged at the bottom of the supporting rod. According to the design, the telescopic length of the supporting rod can be adjusted according to the actual demand, the whole support can be stably supported, and the rubber pad can prevent slipping and further improve the stability of the ground support mechanism.
[0014] As a further improvement of the utility model, a groove is formed on each mounting plate, and the groove is used for placing the unused supporting rod. According to the design, the supporting rod can be conveniently stored.
[0015] As a further improvement of the utility model, a storage drawer is further arranged on the front and rear sides of the base, and the storage drawer is arranged close to the movable groove. According to the design, the parts required for ground support can be stored, and the parts can be conveniently taken when the ground support mechanism is used.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] 1. According to the design of the double lifting support, the synchronous lifting of the two lifting units is realized, the shaking and instability of the single lifting mechanism in the lifting process are effectively avoided, and the stability and safety of lifting are improved.
[0018] 2. According to the design of the collapsible ground support mechanism, the support frame can be firmly supported on the ground when needed, the stability and carrying capacity of the support frame are increased, and the support legs can be retracted when not needed, so that the support frame can be conveniently moved and transported. The bottom plate is provided with a plurality of rollers, so that the support frame can be conveniently moved and transported, and the flexibility and application range of the support frame are improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;
[0020] Figure 2 It is a whole three-dimensional structure schematic view of the utility model; Figure 1 It is a structure schematic view of the utility model without a working platform;
[0021] Figure 3 It is a local schematic view of the limiting mechanism and the base connection of the utility model;
[0022] Figure 4 It is a structure schematic view of the limiting mechanism of the utility model;
[0023] Figure 5 It is a schematic view of the ground support mechanism inside the base of the utility model;
[0024] Figure 6The utility model discloses a ground support mechanism schematic view.
[0025] Figure 7 It is the fourth embodiment schematic view of the utility model.
[0026] In the drawing: 1, base; 11, storage drawer; 12, self-locking universal wheel;
[0027] 2, double lifting support; 21, fork arm group; 22, hydraulic cylinder; 23, sliding block one; 24, slide rail one;
[0028] 3, work platform; 31, guardrail; 32, tool box; 33, control switch;
[0029] 4, ground support mechanism; 41, movable slot; 42, mounting plate; 43, connecting plate; 44, support rod; 45, rubber pad; 46, limiting hole; 47, connecting shaft; 48, screw hole; 49, recess;
[0030] 5, limiting mechanism; 51, push rod; 52, control spring; 53, limiting column; 54, control handle; 55, fixed pin; 56, fixed hole; 57, round groove; 58, limiting groove. DETAILED DESCRIPTION
[0031] In order to facilitate understanding the utility model, below will be with reference to relevant drawings more comprehensive description of the utility model, the drawings show several embodiments of the utility model, but the utility model can be realized through different forms, and is not limited to the embodiments described in the text, on the contrary, provide these embodiments are for the purpose of making the disclosed content of the utility model more thorough and comprehensive.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, and the terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model, and the term "and / or" used herein includes any and all combinations of one or more related listed items.
[0033] The utility model will be described in further detail below in connection with the drawings. Embodiment 1
[0034] Please refer to Figures 1-6 The utility model provides a support frame for substation operation and maintenance, including base 1, double lifting support 2, work platform 3 and ground support mechanism 4, the base 1 bottom evenly distributes and has self-locking universal wheel 12, double lifting support 2 installs in the base 1 top surface, and double lifting support 2 top installs work platform 3, provides stable work space for operation and maintenance personnel;
[0035] The double lifting support 2 is composed of two scissor lifting mechanisms, each of which includes at least two fork arm groups 21 and two hydraulic cylinders 22. The two fork arm groups 21 are connected in the vertical direction. The bottom of one side of the lower fork arm group 21 is fixedly connected to the base 1, and the other side is slidably connected to the base 1. The upper fork arm group 21 is slidably connected to the bottom of the working platform 3 at the positions corresponding to the movable end and the fixed end of the lower fork arm group 21. The hydraulic cylinders 22 are symmetrically installed on the side where the fork arm group 21 slides, and the bottom of the hydraulic cylinder 22 is movably connected to the bottom of the fork arm group 21. The extension end of the hydraulic cylinder 22 is movably connected to the top end of the fixed side of the fork arm group 21. These mechanisms realize the lifting function through the at least two fork arm groups 21 and the two hydraulic cylinders 22. The fork arm groups 21 are connected in the vertical direction to form a stable support structure. The bottom of one side of the lower fork arm group 21 is fixedly connected to the base 1, and the other side is slidably connected to the base 1 to ensure the stability of the lifting. The upper fork arm group 21 is slidably connected to the bottom of the working platform 3 at the positions corresponding to the movable end and the fixed end of the lower fork arm group 21 to realize the height adjustment of the working platform 3. The hydraulic cylinders 22 are symmetrically installed on the side where the fork arm group 21 slides. The extension and retraction of the hydraulic cylinders 22 drive the fork arm group 21 to move up and down. In this embodiment, the scissor lifting mechanism is the same as the existing scissor lifting table, so no further description is provided. Each fork arm group 21 has two fork arms. A connecting rod is arranged between the two fork arms of the upper fork arm group 21 to further improve the stability of the fork arms and enhance the safety of the entire support frame.
[0036] The ground support mechanism 4 is installed inside the base 1 and includes multiple connecting plates 43, support rods 44, and mounting plates 42. The base 1 is provided with movable grooves 41 around the periphery. The mounting plates 42 are located at the center inside the base 1. The multiple connecting plates 43 are evenly distributed at the four corners of the mounting plates 42 and are rotatably connected to the mounting plates 42. The ends of each connecting plate 43 are detachably connected to the support rods 44. When the support frame needs to be fixed to the ground, the support rods 44 are extended to support the ground, ensuring the stability of the support frame.
[0037] Embodiment 2
[0038] Please refer to Figures 1-2 On the basis of embodiment 1, the movable end of the lower fork arm group 21 is connected to a sliding block 23. The sliding block 23 is slidably connected to a sliding rail 24, and the sliding rail 24 is fixedly installed on the base 1. This design enables the fork arm group 21 to slide more stably during lifting, improving the accuracy and stability of the lifting.
[0039] The bottom of the working platform 3 is provided with a plurality of slide rails two, and each slide rail two is slidably provided with a sliding block two, and the sliding block two is connected with the movable end of the fork arm group 21, so that the working platform 3 can stably rise or fall with the lifting of the fork arm group 21. This design not only improves the stability of the working platform 3, but also enables the maintenance personnel to operate more conveniently on the working platform 3. In the embodiment, the two ends of the slide rail one 24 and the slide rail two are provided with shock-absorbing pads, which can buffer when rising or falling to the end point, further improving the stability and safety of the equipment. Embodiment 3
[0040] Please refer to Figure 1 , the top of the working platform 3 is also provided with a guardrail 31 to ensure the safety of the maintenance personnel during the work process. Meanwhile, the top of the working platform 3 is also provided with a tool box 32 and a control switch 33 for controlling the lifting of the two scissor-type lifting mechanisms. The tool box 32 is convenient for the maintenance personnel to store and take tools, and the control switch 33 enables the maintenance personnel to control the lifting height of the support frame more conveniently. Embodiment 4
[0041] Please refer to Figure 1 , Figure 7 Unlike embodiment 1, in order to improve work efficiency, a driving motor can be arranged at the bottom of the base 1. The output end of the driving motor is fixedly connected with the center of the mounting plate 42. By controlling the motor to drive the mounting plate 42 to rotate, the four connecting plates 43 can be simultaneously stretched outwards until each connecting rod is in contact with the inner wall of the movable groove 41, and then the motor is turned off. Embodiment 5
[0042] Please refer to Figures 2-4 , one side of the movable groove 41 is provided with a limiting mechanism 5 for limiting and locking the expanded connecting plate 43. The limiting mechanism 5 is used for limiting and locking the expanded connecting plate 43 to ensure that the connecting plate 43 does not shake or shift during the supporting process. The limiting mechanism 5 includes a push rod 51, a control spring 52 and a limiting column 53. The top end of the push rod 51 is fixedly provided with a control handle 54. The bottom of the control handle 54 is symmetrically provided with a fixed pin 55. The top of the base 1 is provided with a fixed hole 56 matched with the fixed pin 55. A circular groove 57 is formed in the base 1. A limiting groove 58 is formed below the circular groove 57. The diameter of the circular groove 57 is smaller than that of the limiting groove 58. The push rod 51 is inserted into the circular groove 57 from the top of the base 1 and extends into the limiting groove 58 to be fixedly connected with the top of the limiting column 53. The control spring 52 is covered on the outer wall of the push rod 51 and located in the limiting groove 58. The top of the control spring 52 is fixedly connected with the top wall of the limiting groove 58, and the bottom is rotatably connected with the top of the limiting column 53. A limiting hole 46 is formed in the movable groove 41 on the same vertical line as the limiting column 53. The limiting column 53 and the limiting hole 46 are matched to lock and fix the connecting block.
[0043] In use of the ground support mechanism 4, when the connecting plate 43 is unfolded outwardly and abuts against the inner wall of the movable slot 41, the control handle 54 is rotated until the fixing pin 55 on the control handle 54 is rotated to the fixing hole 56, and the fixing pin 55 is inserted into the fixing hole 56 under the action of the control spring 52, at the same time, the limiting column 53 at the bottom of the push rod 51 is inserted into the limiting hole 46 in the movable slot 41, so that the connecting plate 43 is limited and fixed, and the rotation of the connecting plate 43 is prevented, which is beneficial to the ground support of the support rod 44. In the embodiment, when the ground support is not used, the connecting plate 43 is folded into the movable slot 41, and the connecting plate 43 can be limited by the limiting column 53 to avoid the disengagement of the connecting plate 43 from the movable slot 41. When the connecting plate 43 needs to be limited, the control handle 54 is pulled upwardly to make the fixing pin 55 disengage from the fixing hole 56, and then the control handle 54 is rotated to make the fixing pin 55 contact the top surface of the base 1. At this time, the limiting column 53 does not prevent the connecting plate 43 from unfolding outwardly from the movable slot 41. The design is simple in operation and high in practicability. Embodiment 6
[0044] Please refer to Figures 5-6 The mounting plate 42 is provided with a connecting shaft 47 at four corners, and one end of the connecting plate 43 is rotationally connected with the connecting shaft 47. The connecting plate 43 can be folded into the movable slot 41 by rotating around the shaft. The design makes the connecting plate 43 rotate around the shaft, which is convenient for folding into the movable slot 41. When the support frame is not used, the connecting plate 43 and the support rod 44 can be folded up to reduce the occupied space.
[0045] The end of the connecting plate 43 away from the mounting plate 42 is provided with a threaded hole 48, and the outer wall of the support rod 44 is provided with a threaded portion matched with the threaded hole 48. The bottom of the support rod 44 is further provided with a rubber pad 45. The support rod 44 can be more firmly connected to the connecting plate 43 by threaded connection. At the same time, the bottom of the support rod 44 is further provided with a rubber pad 45 to increase the friction between the support rod 44 and the ground and improve the stability of the support frame. In the embodiment, when the support rod 44 supports the ground, locking nuts can be arranged at the upper and lower ends of the connecting plate 43 to further improve the stability of the support rod 44.
[0046] A recess 49 is arranged on each mounting plate 42. The recess 49 is used to place the unused support rod 44. The recess 49 is designed to conveniently store the disassembled support rod 44 for next use.
[0047] The base 1 is further provided with storage drawers 11 on the front and rear sides, and the storage drawers 11 are arranged close to the movable slot 41. These storage drawers 11 are convenient for maintenance personnel to store and take some small tools or spare parts. The design of the storage drawers 11 not only improves the practicability of the support frame, but also makes the maintenance work more convenient and efficient.
[0048] The utility model has carried out the exemplary description to the utility model in the above-mentioned combination drawing, obviously the utility model concrete realization is not limited by above-mentioned mode, only if the method conception and technical scheme of the utility model have been used to carry out this kind of non-essential improvement, or the conception and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.
Claims
1. A support frame for substation operation and maintenance, characterized by: The base, double lifting support, work platform and ground supporting mechanism are provided, the base is uniformly provided with self-locking universal wheels at the bottom, the double lifting support is installed on the top surface of the base, and the double lifting support is provided with the work platform at the top; The double lifting support is composed of two scissor type lifting mechanisms, the scissor type lifting mechanism comprises at least two fork arm groups and two hydraulic cylinders, the two fork arm groups are connected with each other in the vertical direction, one side of the bottom of the lower fork arm group is fixedly connected with the base, the other side is slidably connected with the base, the upper fork arm group is slidably connected with the bottom of the work platform at positions corresponding to the movable end and the fixed end of the lower fork arm group, the hydraulic cylinders are symmetrically installed on the side where the fork arm group slides, the bottom of the hydraulic cylinder is movably connected with the bottom of the fork arm group, and the telescopic end of the hydraulic cylinder is movably connected with the top end of the fixed side of the fork arm group. The ground supporting mechanism is installed in the base, the ground supporting mechanism comprises a plurality of connecting plates, supporting rods and mounting plates, a plurality of movable grooves are formed in the periphery of the base, the mounting plates are installed in the center of the base, the connecting plates are uniformly distributed at the four corners of the mounting plates and are rotatably connected with the mounting plates, and the supporting rods are detachably connected to the ends of the connecting plates.
2. The support frame for substation operation and maintenance according to claim 1, characterized in that: The bottom of the movable end of the lower fork arm group is connected with a sliding block one, the sliding block one is slidably connected with a sliding rail one, and the sliding rail one is fixedly installed on the base.
3. The support frame for substation operation and maintenance according to claim 1, characterized in that: The bottom of the work platform is provided with a plurality of sliding rails two, each of which is slidably provided with a sliding block two, and the sliding block two is connected with the movable end of the upper fork arm group.
4. The support frame for substation operation and maintenance according to claim 3, characterized in that: The top of the work platform is provided with a guardrail, and a tool box and a control switch for controlling the lifting of the two scissor type lifting mechanisms are installed on the top of the work platform.
5. The support frame for substation operation and maintenance according to claim 4, characterized in that: One side of the movable groove is provided with a limiting mechanism, the limiting mechanism is used for limiting and locking the connecting plate after unfolding, the limiting mechanism comprises a push rod, a control spring and a limiting column, a control handle is fixedly installed at the top end of the push rod, fixed pins are symmetrically arranged at the bottom of the control handle, a fixed hole matched with the fixed pins is arranged at the top of the base, a circular groove is formed in the base, a limiting groove is formed below the circular groove, the diameter of the circular groove is smaller than that of the limiting groove, the push rod is inserted into the circular groove from the top of the base and extends into the limiting groove to be fixedly connected with the top of the limiting column, the control spring is arranged on the outer wall of the push rod and located in the limiting groove, the top of the control spring is fixedly connected with the top wall of the limiting groove, the bottom is rotatably connected with the top of the limiting column, and a limiting hole is arranged on the same vertical line with the limiting column in the movable groove, and the limiting column and the limiting hole are matched to lock and fix the connecting block.
6. The support frame for substation operation and maintenance according to claim 1, characterized in that: The four corners of the mounting plate are provided with connecting shafts, one end of the connecting plate is rotatably connected with the connecting shaft, and the connecting plate can be folded into the movable groove by rotating around the shaft.
7. The support frame for substation operation and maintenance according to claim 6, characterized in that: A threaded hole is formed in the end of the connecting plate away from the mounting plate, a threaded portion matched with the threaded hole is arranged on the outer wall of the supporting rod, and a rubber pad is further arranged at the bottom of the supporting rod.
8. The support frame for substation operation and maintenance according to claim 7, characterized in that: A groove is formed in each mounting plate, and the groove is used for placing the unused supporting rod.
9. The support frame for substation operation and maintenance according to claim 1, characterized in that: The base is further provided with storage drawers on the front and rear sides, and the storage drawers are arranged close to the movable groove.