Supporting and connecting mechanism and transformer substation insulation device

Abstract

The utility model relates to the technical field of transformer substation maintenance and discloses a supporting and connecting mechanism and a transformer substation insulation device, comprising a flat slide which comprises a first flat ladder, a second flat ladder which can be inserted into one end of the first flat ladder, and a displacement groove and an extension ladder which are arranged on the upper surface, the second horizontal ladder comprises a connecting ladder assembly connected with the other end of the first horizontal ladder, a bottom ladder assembly matched with the connecting ladder assembly to stretch out and draw back, and two groups of limiting pieces which are limited with the bottom ladder assembly and are symmetrically arranged on the inner side wall of the connecting ladder assembly, and the two groups of supporting ladder assemblies are respectively connected with the first horizontal ladder and the second horizontal ladder; the supporting device comprises a plurality of sets of supporting supports, connecting rods connected to the two sides of the supporting supports and fixing shafts fixed between the adjacent connecting rods in the vertical direction. The telescopic ladder has the beneficial effects that a worker can adapt to working environments with different heights and positions, the length of the ladder can be freely adjusted in a retractable manner, and the worker can be more flexible in a high-altitude operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substation maintenance, in particular to a supporting connection mechanism and a transformer substation insulation device. Background Art

[0002] Currently, a high number of defects are found at the top terminal joints of post insulators on equipment such as disconnectors and lightning arresters in substations. However, because substations affect the power supply of multiple lines, these defects are difficult to address during power outages. Currently, there are limited methods for addressing these defects live, primarily using a ground-potential operating rod to tighten bolts and using the V-pull method from a high-altitude hanging basket. However, the ground-potential operating rod method can only address heating defects caused by loose bolts and is ineffective at addressing other defects at the top terminal joints of post insulators. Furthermore, the V-pull method from a high-altitude hanging basket requires high clearance within the station and can generally only address defects at the top terminal joints of post insulators on the gantry side of substations of 500kV and above. Currently, there is a lack of tools and equipment to quickly access and exit the power field to address defects at the top terminal joints of post insulators in 110kV-220kV substations. This results in these defective equipment operating for extended periods while waiting for a power outage window, limiting the development of live work projects.

[0003] Workers use ladders during work, but conventional ladders have limited range of movement and are not firm. They are inconvenient to operate during contraction and extension, which is not conducive to use by workers. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the technical problems that the existing workers use ladders during work, but the conventional ladders have limited movement range, are not firm, are inconvenient to operate during contraction and extension, and are not conducive to use by workers, the present utility model is proposed.

[0006] The utility model aims to provide a supporting connection mechanism, which aims to solve the problem that workers cannot move freely during high-altitude operations for substation maintenance, and the ladder cannot be freely extended and retracted, and cannot be adjusted freely.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a supporting and connecting mechanism, which includes a smooth ladder, which includes a first flat ladder, a second flat ladder that can be plugged into one end of the first flat ladder, and a displacement groove opened on the upper surface; a telescopic ladder, which includes a connecting ladder frame connected to the other end of the first flat ladder, a bottom ladder frame that cooperates with the connecting ladder frame for extension and contraction, and two groups of limiting members that are limited by the bottom ladder frame and symmetrically arranged on the inner side wall of the connecting ladder frame; a supporting ladder frame, which is provided with two groups connected to the first flat ladder and the second flat ladder respectively, and includes several groups of top support brackets, connecting rods connected on both sides of the top support brackets, and a fixed axis between adjacent connecting rods in the vertical direction.

[0008] As a preferred solution of the support and connection mechanism of the present invention, the first ladder is provided with a connector at its plug-in end, and the second ladder is provided with a quick-release pin at its mating end with the connector for mating with the connector.

[0009] As a preferred solution of the support and connection mechanism of the present invention, wherein: the first flat ladder and the connecting ladder frame matching end are provided with two groups of fixing parts and a rotating shaft, the rotating shaft passes through the two groups of fixing parts and restricts the fixing parts from being disengaged, and the end of the connecting ladder frame is provided with two groups of rotating parts limited on the rotating shaft, and the two groups of rotating parts are tightly attached to the inner sides of the two groups of fixing parts.

[0010] As a preferred solution of the support and connection mechanism of the present invention, the mating ends of the bottom ladder frame and the connecting ladder frame are provided with sliding telescopic grooves for retracting and extending the connecting ladder frame, and the sliding telescopic grooves are dovetail groove-type to limit the connecting ladder frame.

[0011] As a preferred solution of the support and connection mechanism of the utility model, the limiting member includes a buckle, a return spring and a rotating shaft rotatably connected to the connecting ladder frame, the center of the buckle rotates around the rotating shaft, and the buckle includes a locking end and an unlocking end from top to bottom, and the length of the unlocking end is greater than the locking end.

[0012] As a preferred solution of the support and connection mechanism of the present invention, one end of the return spring is connected to the side of the buckle away from the unlocking end, and the other end is fixed to the connecting ladder.

[0013] As a preferred solution of the support and connection mechanism of the utility model, wherein: the matching end of the connecting rod and the smooth ladder is provided with a bracket quick-release pin, and the bracket quick-release pin connects the connecting rod and the smooth ladder.

[0014] As a preferred solution of the support and connection mechanism of the present invention, a slot is provided on the annular surface of the connecting rod, and a locking piece which can be inserted into the slot is provided on the fixed shaft.

[0015] As a preferred solution of the support and connection mechanism of the present invention, the bottom ladder frame and the lower half of the support ladder frame are both connected to support legs, and the support legs are both fixed in a triangular shape.

[0016] The beneficial effects of the support and connection mechanism of the utility model are that it enables workers to adapt to working environments of different heights and positions, and the length of the ladder can be freely adjusted.

[0017] Another purpose of the utility model is to provide a transformer substation insulation device, which aims to solve the inconvenience of movement of workers when working at high altitudes.

[0018] In order to solve the above technical problems, the present invention also provides the following technical solutions: a substation insulation device, which includes a supporting connection mechanism; and an insulating seat, which is arranged to be slidably connected with the displacement groove, and includes two sets of rope buckles and insulating pads.

[0019] The beneficial effect of the transformer substation insulation device of the utility model is that it enables workers to be more flexible during high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 For this utility model Figure 1 A magnified view of the structure.

[0023] Figure 3 This is a schematic diagram of the disassembly of the fixed shaft in the present utility model.

[0024] Figure 4 It is a structural schematic diagram of the sliding ladder in the utility model.

[0025] Figure 5 This is a schematic diagram of the disassembly of the telescopic ladder in the present invention.

[0026] Figure 6 It is a cross-sectional view of the telescopic ladder in the present utility model.

[0027] Figure 7 For this utility model Figure 6 Enlarged view of the structure at point B. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 , which is the first embodiment of the utility model, this embodiment provides a supporting connection mechanism, including a smooth ladder 100, which includes a first flat ladder 101, a second flat ladder 102 that can be plugged into one end of the first flat ladder 101, and a displacement groove 103 opened on the upper surface, and a telescopic ladder 200, which includes a connecting ladder frame 201 connected to the other end of the first flat ladder 101, a bottom ladder frame 202 that cooperates with the connecting ladder frame 201 for extension and contraction, and two sets of limiting members 203 that are limited by the bottom ladder frame 202 and symmetrically arranged on the inner side wall of the connecting ladder frame 201.

[0033] Furthermore, a connector 101a is provided at the plug-in end of the first ladder 101, and a quick-release pin 102a is provided at the mating end of the second ladder 102 and the connector 101a for mating with the connector 101a. Two sets of fixing parts 101b and a rotating shaft 101c are provided at the mating end of the first ladder 101 and the connecting ladder frame 201. The rotating shaft 101c passes through the two sets of fixing parts 101b and restricts the fixing parts 101b from being disengaged. Two sets of rotating parts 201a are provided at the end of the connecting ladder frame 201 and are limited on the rotating shaft 101c. The two sets of rotating parts 201a are tightly attached to the inner sides of the two sets of fixing parts 101b.

[0034] Specifically, when encountering an environment where the location is deep and it is inconvenient to set up a ladder, the first flat ladder 101 and the second flat ladder 102 can be spliced ​​together, and the connector 101a and the quick-release pin 102a can be spliced ​​together to increase the overall length of the smooth ladder 100. The staff can climb along the telescopic ladder 200 to reach the top of the smooth ladder 100 for displacement operations. The first flat ladder 101 and the connecting ladder frame 201 are connected and limited by the rotating shaft 101c. The rotating part 201a on the connecting ladder frame 201 is tightly attached to the inner wall of the fixing part 101b to prevent sliding to both sides. The staff climbs up the telescopic ladder 200 to the smooth ladder 100 and performs maintenance operations on the smooth ladder 100 by displacement.

[0035] Example 2

[0036] Reference Figures 1 to 4 , which is the second embodiment of the present utility model. Different from the previous embodiment, it also includes a supporting ladder frame 300, which is provided with two groups connected to the first horizontal ladder 101 and the second horizontal ladder 102 respectively, and includes several groups of top support brackets 301, connecting rods 302 connected on both sides of the top support brackets 301, and fixed shafts 303 between adjacent connecting rods 302 in the vertical direction. The matching ends of the bottom ladder frame 202 and the connecting ladder frame 201 are provided with sliding telescopic grooves to retract and extend the connecting ladder frame 201.

[0037] Furthermore, the sliding telescopic groove is a dovetail groove type to limit the connecting ladder frame 201, and the limiting member 203 includes a buckle 203a, a return spring 203b and a rotating shaft 203c. The limiting member 203 includes a buckle 203a, a return spring 203b and a rotating shaft 203c rotatably connected to the connecting ladder frame 201. The center of the buckle 203a rotates around the rotating shaft 203c. The buckle 203a includes a locking end 203a-1 and an unlocking end 203a-2 from top to bottom. The length of the unlocking end 203a-2 is greater than the locking end 203a-1. One end of the return spring 203b is connected to the side of the buckle 203a away from the unlocking end 203a-2, and the other end is fixed to the connecting ladder frame 201. The connecting rod 302 is provided with a bracket quick-release pin 302a at the mating end with the smooth ladder 100. The bracket quick-release pin 302a connects the connecting rod 302 to the smooth ladder 100.

[0038] Furthermore, a slot 302b is provided on the annular surface of the connecting rod 302, and a locking piece 303a that can be inserted into the slot 302b is provided on the fixed shaft 303. The bottom ladder frame 202 and the lower half of the supporting ladder frame 300 are both connected to the supporting legs T, and the supporting legs T are both fixed in a triangular shape.

[0039] Specifically, the connecting ladder frame 201 slides in the sliding telescopic groove on the bottom ladder frame 202, so that the ladder frame can be telescoped. A limit member 203 is provided at the position of the last step where the two inner walls of the connecting ladder frame 201 are close to each other. The rotating shaft 203c is fixed to the inner wall of the connecting ladder frame 201. A hole is provided in the center of the buckle 203a to coincide with the rotating shaft 203c, so that the buckle 203a can rotate around the rotating shaft 203c. There is a locking end on the buckle 203a. 203a-1 and the unlocking end 203a-2, the length of the locking end 203a-1 is smaller than the length of the unlocking end 203a-2, and the locking end 203a-1 and the unlocking end 203a-2 are on the same side, and a return spring 203b is provided on the other side of the two, one end of the return spring 203b is connected to the side wall end at the bottom of the buckle 203a, and the other end is fixed to the connecting ladder frame 201, and the return spring 203b can make the rotation range of the buckle about 90°.

[0040] Furthermore, in the process of using the telescopic ladder 200, the connecting ladder frame 201 can be pulled by binding with a rope, so as to control the rise and fall of the connecting ladder frame 201, which can save more effort. In the process of adjusting the length of the telescopic ladder 200, the connecting ladder frame 201 is displaced upward, which drives the displacement of the limit member 203. The limit member 203 will contact the bottom ladder frame 202 during the upward displacement. During the contact process, the locking end 203a-1 first contacts the step on the bottom ladder frame 202, thereby starting to squeeze the return spring 203b. When the locking end 203a-1 passes through the step on the bottom ladder frame 202 and the unlocking end 203a-2 does not pass through the step, a lock is formed. The connecting ladder frame 201 is locked due to its own gravity. It will move downward, causing the angle between the locking end 203a-1 and the unlocking end 203a-2 to be stuck with the step on the bottom ladder frame, thereby preventing it from falling again. When the connecting ladder frame 201 moves upward again, the unlocking end 203a-2 also limits the buckle 203a from completely passing through the step through the step return spring 203c of the bottom ladder frame 202. At this time, since the lower part of the unlocking end 203a-2 on the buckle 203 is a horizontal section, it will not be stuck again. Therefore, when the connecting ladder frame 201 is not further stretched, the connecting ladder frame 201 will cause the lower horizontal section of the locking end 203a-2 to contact each step due to its own gravity, and stretch the return spring 203c until it returns to the lowest point, thereby achieving the contraction of the connecting ladder frame 201.

[0041] The connecting rod 302 and the smooth ladder 100 are fixed together by the bracket quick-release pin 302a, which makes the connecting rod 302 easier and more convenient during installation. A hole is provided on the top support bracket 301 to connect with the fixed shaft 303, and the fixed shaft 303 and the top support bracket 301 are locked by a pin. A supporting leg T is provided at the bottom end of the bottom ladder frame 202 and the supporting ladder frame 300 to achieve a more stable effect. In this process, the supporting leg T is set to a triangular shape to maintain greater stability.

[0042] Example 3

[0043] Reference Figures 1 to 4 This is the third embodiment of the present invention, which further provides a substation insulation device, including an insulation seat 400 slidably connected to the displacement slot 103 , which includes two sets of rope buckles 401 and an insulation pad 402 .

[0044] An insulating seat 400 is provided on the sliding ladder 100 and is mortised with a displacement groove 103, so that the insulating seat 400 can slide on the displacement groove 103 without losing fit. Two sets of rope buckles 401 are provided on the insulating seat 400, which are respectively arranged at symmetrical positions. Ropes can be connected to the rope buckles 401 to pull and displace the insulating seat 400. An insulating pad 402 is laid on the insulating seat 400, so as to achieve an insulating effect and ensure the safety of the working process. During this process, the staff sits on the insulating pad 402, and other staff can control the position of the insulating seat 400 by pulling the rope, so that the position of the staff can be controlled more conveniently and safely.

[0045] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A supporting connection mechanism, characterized in that: include, A flat ladder (100) comprises a first flat ladder (101), a second flat ladder (102) pluggable at one end of the first flat ladder (101), and a displacement groove (103) provided on the upper surface; A telescopic ladder (200) comprises a connecting ladder frame (201) connected to the other end of a first horizontal ladder (101), a bottom ladder frame (202) that cooperates with the connecting ladder frame (201) to be telescopic, and two sets of limiting members (203) that are limited by the bottom ladder frame (202) and are symmetrically arranged on the inner side wall of the connecting ladder frame (201); The supporting ladder frame (300) is provided with two groups respectively connected to the first horizontal ladder (101) and the second horizontal ladder (102), and comprises a plurality of groups of supporting brackets (301), connecting rods (302) connected to both sides of the supporting brackets (301), and fixed shafts (303) between adjacent connecting rods (302) in a fixed vertical direction.

2. The support and connection mechanism according to claim 1, wherein: The plug-in end of the first ladder (101) is provided with a plug-in component (101a), and the mating end of the second ladder (102) and the plug-in component (101a) is provided with a plug-in quick-release pin (102a) for mating with the plug-in component (101a).

3. The support and connection mechanism according to claim 2, wherein: The mating ends of the first flat ladder (101) and the connecting ladder frame (201) are provided with two sets of fixing members (101b) and a rotating shaft (101c), and the rotating shaft (101c) passes through the two sets of fixing members (101b) and restricts the fixing members (101b) from being disengaged; Two groups of rotating parts (201a) are provided at the end of the connecting ladder frame (201) and are limited on the rotating shaft (101c). The two groups of rotating parts (201a) are both tightly attached to the inner sides of the two groups of fixing parts (101b).

4. The supporting connection mechanism according to claim 1 or 3, characterized in that: The matching ends of the bottom ladder frame (202) and the connecting ladder frame (201) are provided with sliding telescopic slots for retracting and extending the connecting ladder frame (201); The sliding telescopic groove is a dovetail groove type and limits the connection ladder frame (201).

5. The supporting connection mechanism according to claim 4, wherein: The limiting member (203) comprises a buckle (203a), a return spring (203b), and a rotating shaft (203c) rotatably connected to the connecting ladder frame (201), and the center of the buckle (203a) rotates around the rotating shaft (203c); The buckle (203a) comprises a locking end (203a-1) and an unlocking end (203a-2) from top to bottom, and the unlocking end (203a-2) is longer than the locking end (203a-1).

6. The supporting connection mechanism according to claim 5, wherein: One end of the return spring (203b) is connected to the side of the buckle (203a) away from the unlocking end (203a-2), and the other end is fixed to the connecting ladder frame (201).

7. The supporting connection mechanism according to claim 6, wherein: The matching ends of the connecting rod (302) and the smooth ladder (100) are provided with a bracket quick-release pin (302a), and the bracket quick-release pin (302a) connects the connecting rod (302) and the smooth ladder (100).

8. The supporting connection mechanism according to claim 7, wherein: A slot (302b) is provided on the annular surface of the connecting rod (302), and a locking piece (303a) that can be inserted into the slot (302b) is provided on the fixed shaft (303).

9. The supporting connection mechanism according to claim 8, wherein: The lower halves of the bottom ladder frame (202) and the supporting ladder frame (300) are both connected to a supporting foot frame (T); The supporting legs (T) are all fixed in a triangular shape.

10. A transformer substation insulation device, characterized in that: It comprises the supporting connection mechanism according to any one of claims 1 to 9; and an insulating seat (400) which is arranged to be slidably connected with the displacement groove (103) and comprises two groups of rope buckles (401) and an insulating pad (402).

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