Adjusting mechanism and platform ladder for overhauling

Abstract

The utility model relates to the technical field of maintenance equipment, in particular to an adjusting mechanism and a platform ladder for maintenance, which comprises a support frame I and a support frame II, a support rod I is arranged at the edge of the support frame I, a climbing component, a climbing frame I, a climbing frame II and an adjusting component, and the climbing frame I and the climbing frame II are arranged on one side of the support frame II. Comprising adjusting cavities formed in the lower portion of the second supporting rod and the lower portion of the first climbing frame. The device has the advantages that workers can conveniently enter the steam drum through the manhole to work due to the arrangement of the climbing assembly, meanwhile, a grabbing point is provided for the workers working in the steam drum due to the arrangement of the first climbing frame and the second climbing frame in the climbing assembly, normal overhauling work is facilitated, and the working efficiency is improved. In addition, due to the arrangement of the adjusting assembly, a worker can conveniently adjust the ground clearance of the second supporting frame and the distance between the first climbing frame and the second climbing frame according to needs, and the device can be matched with steam pocket manholes of different heights and steam pockets of different depths.

Description

Technical Field

[0001] This utility model relates to the field of maintenance equipment technology, and in particular to an adjustment mechanism and a platform ladder for maintenance. Background Technology

[0002] The steam drum of a gas turbine waste heat boiler is an important component of a gas turbine combined cycle power generation system. Its main function is to use the high-temperature flue gas emitted by the gas turbine to heat water and generate steam. It is equipped with manholes for easy installation and maintenance. During boiler installation, maintenance, and repair, workers need to enter the steam drum through the manholes to perform tasks such as inspecting the internal structure, cleaning debris, and replacing internal components. However, the manholes are quite high off the ground. Factories typically install platforms at the manholes, allowing workers to slide down directly or use rope ladders to enter and exit the steam drum. However, these methods pose a risk of falls and injuries. Furthermore, different types of steam drums have varying internal depths, and the current equipment length is not easily adjustable to meet specific needs. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] The purpose of this utility model is to provide an adjustment mechanism that addresses the risk of falls and injuries to workers when entering and exiting the steam drum, as well as the shortcomings of existing equipment whose length is not easily adjustable as needed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustment mechanism, comprising a support assembly, including a support frame one and a support frame two, wherein the support frame one is located directly below the support frame two, a support rod one is provided at the edge of the support frame one, and a support rod two fixed to the support frame two is provided above the support rod one; a climbing assembly, comprising a climbing frame one and a climbing frame two disposed on one side of the support frame two, wherein the climbing frame one is located above the climbing frame two; and an adjustment assembly, comprising adjustment cavities respectively disposed at the lower part of the support rod two and the lower part of the climbing frame.

[0006] As a preferred embodiment of the adjustment mechanism of this utility model, wherein: the end of the support rod one near the support rod two and the end of the climbing frame two near the climbing frame one are respectively provided with adjustment rods that are slidably connected to the adjustment cavity, and a plurality of corresponding adjustment holes are provided at the contact positions of the adjustment cavity and the adjustment rod surfaces, and adjustment bolts are threadedly installed in the adjustment holes.

[0007] As a preferred embodiment of the adjustment mechanism of this utility model, the support frame is provided with a plurality of storage tubes.

[0008] As a preferred embodiment of the adjustment mechanism of this utility model, the end of the support rod one away from the support rod two is provided with a movable roller.

[0009] As a preferred embodiment of the adjustment mechanism of this utility model, climbing rods for maintenance personnel to climb are provided between the first support rod, between the second support rod, and between the first climbing frame and the second climbing frame.

[0010] As a preferred embodiment of the adjustment mechanism of this utility model, the climbing frame one is provided with a hook near the support frame two, and the hook is slidably connected to the support frame two.

[0011] As a preferred embodiment of the adjustment mechanism of this utility model, the second support frame is provided with a plurality of crawling crossbars.

[0012] In a preferred embodiment of the adjustment mechanism of this utility model, the support component, climbing component and adjustment component are all welded together from hollow steel pipes of different sizes.

[0013] The beneficial effects of the adjustment mechanism of this utility model are as follows: the climbing component facilitates workers to enter the steam drum through the manhole to carry out work. At the same time, the climbing frame one and climbing frame two in the climbing component provide a grab point for the workers inside the steam drum, which facilitates the normal progress of maintenance work. In addition, the adjustment component allows workers to adjust the ground clearance of the support frame two and the distance between the climbing frame one and the climbing frame two as needed, so that it can match the manholes of different heights and the steam drums of different depths.

[0014] Another objective of this invention is to provide a platform ladder for maintenance, which aims to solve the problem of inconvenient ladder fixing inside the steam drum.

[0015] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a platform ladder for maintenance, comprising an adjustment mechanism; and an adsorption assembly, comprising a mounting ring fixedly installed at one end of the climbing frame two away from the climbing frame one, wherein the mounting ring has an internal mounting area, the mounting area is provided with a mounting hook, and an electromagnet is fixedly installed at a position of the mounting hook away from the mounting area.

[0016] As a preferred embodiment of the platform ladder for maintenance according to this utility model, wherein: the installation area is provided with an installation notch near the climbing frame two.

[0017] The beneficial effects of the platform ladder for maintenance of this utility model are as follows: by setting up an electromagnet, when the climbing frame 2 extends into the steam drum, it can be made to be filled with magnetic force by a remote control device and attracted to the inner wall of the steam drum, thereby ensuring the stability of the workers' operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of climbing frame one and climbing frame two in this utility model.

[0021] Figure 3 This is a schematic diagram of the adjustment component structure in this utility model.

[0022] Figure 4 This is a schematic diagram of the adsorption component structure in this utility model. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide 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 can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used 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 different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1, referring to Figures 1-3This is the first embodiment of the present invention. This embodiment provides an adjustment mechanism, including a support assembly 100, comprising a first support frame 101 and a second support frame 102, with the first support frame 101 located directly below the second support frame 102. A first support rod 103 is provided at the edge of the first support frame 101, and a second support rod 104 fixed to the second support frame 102 is provided above the first support rod 103. The arrangement of the first support frame 101 and the second support frame 102 provides an installation platform for the remaining components, facilitating the installation of various structures. The climbing assembly 200 includes a first climbing frame 201 and a second climbing frame 202 disposed on one side of the second support frame 102, with the first climbing frame 201 located above the second climbing frame 202. Because the inner wall of the steam drum is relatively smooth and lacks gripping structures, workers may fall when entering the steam drum through the manhole, thus affecting the maintenance work. In this embodiment, the climbing frame 201 and climbing frame 202 provide a gripping point for workers inside the steam drum, facilitating normal maintenance work. The adjustment assembly 300 includes adjustment cavities 301 respectively located at the lower part of the support rod 2 104 and the lower part of the climbing frame 201. Figure 1 As shown, the adjustment chambers 301 installed in the support rod 2 104 and the climbing frame 201 both have their outlets facing downwards. This allows dust and other debris entering the adjustment chambers 301 to be removed by gravity, reducing the probability of corrosion and extending their service life.

[0027] Furthermore, the end of the support rod 103 near the support rod 204 and the end of the climbing frame 202 near the climbing frame 201 are respectively provided with an adjusting rod 302 that is slidably connected to the adjusting cavity 301. Several corresponding adjusting holes 303 are provided at the contact positions on the surfaces of the adjusting cavity 301 and the adjusting rod 302, and adjusting bolts 304 are threadedly installed in the adjusting holes 303. In actual use, the distance from the ground to the manholes on different steam drums is different, and the internal depth of different types of steam drums is also different. In this embodiment, by setting the adjustment component 300, the ground clearance of the climbing frame 202 can be adjusted to match the manholes of different heights. The adjustment component 300 can also be used to adjust the distance between the climbing frame 1 201 and the climbing frame 202 to meet the needs of steam drum spaces of different depths. In specific use, the adjustment bolt 304 can be removed from the adjustment hole 303 first, and then the adjustment rod 302 can be slid out of the adjustment cavity 301. The length exposed outside can be determined as needed. Finally, the adjustment rod 302 can be fixed by the cooperation of the adjustment bolt 304 and the adjustment hole 303, thereby realizing the adjustment effect of the corresponding component. In addition, since the ground clearance of the manhole and the depth of the steam drum are not very large, there will be no situation where excessive adjustment makes it inconvenient for operators to climb.

[0028] Furthermore, the support frame 101 is provided with several storage tubes 105. The storage tubes 105 form a storage area on the support frame 101, which makes it convenient for staff to place the tools used for maintenance inside the storage area when transferring equipment, thereby improving the convenience of retrieving tools.

[0029] Furthermore, a movable roller 106 is provided at the end of support rod 103 away from support rod 2 104. The movable roller 106 rolls as the equipment moves, thereby reducing the difficulty of equipment transportation.

[0030] In use, the climbing component 200 allows workers to easily enter the steam drum through the manhole to perform their work. The climbing frames 201 and 202 within the climbing component 200 provide a grab point for workers inside the steam drum, facilitating maintenance. Furthermore, the adjustment component 300 allows workers to adjust the ground clearance of the support frame 102 and the distance between the climbing frames 201 and 202 as needed, enabling it to accommodate manholes of different heights and steam drums of different depths.

[0031] Example 2, refer to Figures 1-3 This is the second embodiment of the present invention. Unlike the previous embodiment, it also includes climbing rods 203 for maintenance personnel to climb between support rods 103, between support rods 104, and between climbing frames 201 and 202. In this embodiment, climbing frames 201 and 202 can be placed into the steam drum through the manhole, and personnel outside can use the climbing rods 203 to climb into the steam drum.

[0032] Furthermore, the climbing frame 201 is provided with a hook 205 near the support frame 2 102, and the hook 205 is slidably connected to the support frame 2 102. The hook 205 is provided to facilitate the adjustment of the position of the climbing frame 201 and the climbing frame 202 on the support frame 2 102 and the angle at which they are inserted into the manhole as needed.

[0033] Furthermore, the second support frame 102 is equipped with several climbing crossbars 204. The climbing crossbars 204 provide a fulcrum for the movement of workers on the second support frame 102, making it easier for them to move from the second support crossbars 104 to the first climbing frame 201, thus reducing the risk of falling.

[0034] Furthermore, the support assembly 100, climbing assembly 200, and adjusting assembly 300 are all welded together from hollow steel pipes of varying sizes. The construction of the support assembly 100, climbing assembly 200, and adjusting assembly 300 results in a lower overall weight of the equipment, facilitating its transport.

[0035] In use, the climbing crossbar 204 provides a fulcrum for workers to move on the support frame 2 102, facilitating their movement from the support crossbar 2 104 to the climbing frame 1 201 and reducing the risk of falls. Simultaneously, the hooks 205 allow for real-time adjustment of the positions of the climbing frame 1 201 and climbing frame 2 202 on the support frame 2 102 and their angle of insertion into the manhole.

[0036] Example 3, referring to Figure 4 This is the third embodiment of the present invention, which further provides a platform ladder for maintenance. It includes an adsorption assembly 400, comprising a mounting ring 401 fixedly installed at the end of the climbing frame 202 away from the climbing frame 201. The mounting ring 401 has an internal mounting area with a mounting hook 402. An electromagnet 403 is fixedly installed on the mounting hook 402 away from the mounting area. Because the inside of the steam drum is relatively smooth, and the climbing frame 201 is movably connected to the support frame 2 102 via a hook 205, the climbing frame 201 and climbing frame 202, when inserted into the manhole, are not very stable. To improve the stability of workers during operation, this embodiment provides an electromagnet 403 at the tail of the climbing frame 202. When it extends into the steam drum, it can be magnetically charged via a remote control, adsorbing onto the inner wall of the steam drum, thus ensuring the worker's operation. After work is completed, the electromagnet 403 is demagnetized, allowing the climbing frame 201 and climbing frame 202 to be removed.

[0037] Furthermore, an installation notch is provided near the climbing frame 202 in the installation area. The installation notch facilitates the replacement and maintenance of the electromagnet 403 by the operators.

[0038] When in use, the electromagnet 403 is installed so that when the climbing frame 202 is inserted into the steam drum, it can be made to be filled with magnetism by a remote control device and attached to the inner wall of the steam drum, thus ensuring the stability of the workers' operation.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0041] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustment mechanism characterized by: Including, Supporting assembly (100), including support frame one (101) and support frame two (102), and support frame one (101) is located directly below support frame two (102), support frame one (101) is provided with support rod one (103) at the edge, support rod one (103) is provided with support rod two (104) fixed with support frame two (102) above; Climbing assembly (200), including climbing frame one (201) and climbing frame two (202) arranged on one side of support frame two (102), and climbing frame one (201) is located above climbing frame two (202); Adjusting assembly (300), including adjusting cavity (301) arranged at the lower part of support rod two (104) and the lower part of climbing frame one (201) respectively.

2. The adjustment mechanism of claim 1, wherein: The end of support rod one (103) close to support rod two (104) and the end of climbing frame two (202) close to climbing frame one (201) are respectively provided with adjusting rod (302) slidably connected with adjusting cavity (301), and a plurality of corresponding adjusting holes (303) are arranged on the contact position of the surface of adjusting cavity (301) and adjusting rod (302), and adjusting bolt (304) is screwed in adjusting hole (303).

3. The adjustment mechanism of claim 2, wherein: A plurality of storage pipes (105) are arranged on support frame one (101).

4. The adjustment mechanism of claim 3, wherein: The end of support rod one (103) away from support rod two (104) is provided with moving roller (106).

5. The adjustment mechanism of claim 4, wherein: Climbing rods (203) for maintenance personnel to climb are arranged between support rod one (103), between support rod two (104), between climbing frame one (201) and climbing frame two (202).

6. The adjustment mechanism of claim 5, wherein: The position of climbing frame one (201) close to support frame two (102) is provided with hanging hook (205), and hanging hook (205) is slidably connected with support frame two (102).

7. The adjustment mechanism of claim 6, wherein: A plurality of crawling crossbars (204) are arranged on support frame two (102).

8. The adjustment mechanism of claim 1, wherein: Supporting assembly (100), climbing assembly (200) and adjusting assembly (300) are all welded by hollow steel pipes of different sizes.

9. A platform ladder for service, characterized by: The adjusting mechanism of any one of claims 1-8; and, Suction assembly (400), including mounting ring (401) fixedly installed at the end of climbing frame two (202) away from climbing frame one (201), and mounting area is constructed in mounting ring (401), mounting hook (402) is arranged in mounting area, and electromagnet (403) is fixedly installed at the position of mounting hook (402) away from mounting area.

10. The platform ladder for service according to claim 9, wherein: Mounting gap is arranged at the position of mounting area close to climbing frame two (202).

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