Maintenance support special for positioner

By designing a special positioner maintenance bracket, using the base structure and spring fixation, and adjusting the height of the support structure, the problem of temporary storage of the positioner is solved and the efficiency of valve maintenance in thermal power plants is improved.

CN223057666UActive Publication Date: 2025-07-04HUADIAN WEIFANG POWER GENERATION CO LTD
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Patent Information

Application Number
CN202422301944.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-07-04
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

During the valve maintenance process of thermal power plants, the dismantled positioner is not convenient for temporary storage and fixation, resulting in a waste of manpower and time transported back to the warehouse, and the pipeline connection is prone to air leakage.

Method used

A special positioner maintenance bracket is designed, including a positioner fixing plate and a support structure, which is stuck on the grille plate with a base structure, and the positioner is fixed with a connecting spring and a rebar plate, and the height is adjusted to stabilize the positioner by adapting to different sizes through threaded sleeves and clamping plates.

Benefits of technology

It realizes reliable storage of the positioner on-site, saves handling time and manpower, reduces the possibility of air leakage in the pipeline, and improves the efficiency of valve body maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223057666U_ABST
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Abstract

The utility model relates to the technical field of positioner overhauling supports, and discloses a special positioner overhauling support which comprises an overhauling support component, the overhauling support component comprises a positioner fixing plate and a supporting structure arranged at the lower end of the positioner fixing plate, and base structures are arranged on the outer sides of the periphery of the supporting structure. By means of the device, the reinforcing steel bar plates in four directions can be pulled out, the pins can be moved, the pins can be clamped on the edges of the grating plate and are firmly fixed through the recovery force of the connecting springs, positioners of various models can be fixed through the positioner fixing plate, the positioners can be reliably stored on site, the time and labor for carrying the positioners are saved, and the working efficiency is improved. The possibility of air leakage of pipelines and slipknots is reduced, the working efficiency during maintenance of the valve body is effectively improved, convenience is provided for development of future maintenance work, the lifting rod can be pulled upwards, the overall height of the lifting rod and the supporting rod can be adjusted, the purpose of adjusting the total height of the supporting structure is achieved, and use is flexible.
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Description

Technical Field

[0001] The utility model relates to the technical field of locator maintenance brackets, and specifically relates to a special locator maintenance bracket. Background Technique

[0002] In a thermal power plant, when overhauling the valve body of a pneumatic actuator, the locator and its accessories (pipelines, filter pressure reducing valves, etc.) installed on it need to be removed together and then restored after the valve body overhaul is completed. During the overhaul process of the locator, a maintenance bracket is required for support and fixation, and the locator maintenance bracket is usually used to support and fix the locator (such as an instrument or a sensor) for maintenance and overhaul.

[0003] For example, a light maintenance bracket with the publication number of CN216967703U includes a support steel pipe, a bottom fixing ring, a bottom positioning plate, a fixing nut, a positioning hole, a bottom adjustable bracket structure, an upper fixing ring, a fixing rope, a bottom mounting ring, a fixing pin, a rotary drive frame structure, a reinforcement protection frame structure, a rotary branch pipe, a hanging bracket and a hanging ring. The bottom fixing rings are respectively welded to the lower right side of the support steel pipe; the bottom positioning plate is welded to the lower part of the support steel pipe. In the utility model, the outer ring of the rotary bearing is welded to the lower part of the rotary branch pipe, which is beneficial to flexibly adjust the angle of the hanging bracket on the rotary branch pipe according to the rotation angle of the rotary bearing on the fixed support rod during use; the driving motor is bolted to the upper right side of the support steel pipe, which is beneficial to conveniently drive the driven gear to rotate by the driving motor through the driving gear during use, and then conveniently drive the rotary branch pipe to rotate through the rotary bearing.

[0004] The above patent proposes that the use angle of the hanging bracket can be adjusted. However, during the overhaul process of the locator, since most valves are located above the grille, it is inconvenient to temporarily store and fix the removed locator. Moreover, the removed locator needs to be transported back to the warehouse, resulting in a large workload. The round-trip transportation between the warehouse wastes manpower and time. If it is stored on-site, there is no nearby support facility, and the self-weight of the locator causes the pipeline to be pressed and bent downwards, and the pipe connection quick couplings are likely to leak air during reinstallation.

[0005] Therefore, we propose a special locator maintenance bracket to solve the above-mentioned problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a special locator maintenance bracket to solve the problems proposed in the above background technique, that is, since most valves are located above the grille, it is inconvenient to temporarily store and fix the removed locator, and the removed locator needs to be transported back to the warehouse, resulting in a large workload, and the round-trip transportation between the warehouse wastes manpower and time.

[0007] To achieve the above object, the utility model provides the following technical solutions: a special locator maintenance bracket, including a maintenance bracket member, the maintenance bracket member includes a locator fixing plate for fixing the locator and a support structure arranged at the lower end of the locator fixing plate for support. Base structures are arranged on the outer sides of the four peripheries of the support structure, and the whole can be clamped on the edges of the grid plate by using the arranged base structures;

[0008] The base structure includes a square tube welded to the outer side of the support structure and a connecting spring arranged inside the square tube. One end of the connecting spring is welded to the outer wall of the support structure, and a steel bar plate is welded to the other end of the connecting spring. The steel bar plate slides inside the square tube, and two groups of pins are arranged at the lower end of the steel bar plate. During use, the steel bar plates in four directions can be pulled out, so that the pins move. The pins can be clamped on the edges of the grid plate, and are firmly fixed by the force of the connecting spring retracting.

[0009] Preferably, support blocks are arranged on the front and rear sides of the locator fixing plate, elastic protrusions are arranged on the inner sides of the support blocks, a threaded sleeve is arranged at the upper end of the locator fixing plate, a threaded rod is rotatably connected to the inside of the threaded sleeve, and a clamping plate is connected to the lower end of the threaded rod. Place the locator on the support blocks, and the elastic protrusions deformed by force can help keep the locator stable. When the threaded rod is rotated, the clamping plate can be pushed downward to fix the locator. By adjusting the distance between the clamping plate and the support blocks, locators of different sizes can be adapted to achieve reliable on-site storage of the locator.

[0010] Preferably, the support structure includes a support rod and a lifting rod arranged inside the support rod, and a bolt is also arranged on the outer side of the support rod.

[0011] Preferably, threaded holes are evenly formed on the outer wall of the lifting rod, and the threaded holes are in threaded cooperation with the bolts, so that the total height of the support structure can be flexibly adjusted up and down.

[0012] Preferably, one end of the connecting spring is welded to the outer wall of the support rod, there are four groups of square tubes, and the four groups of square tubes are formed in pairs at 90 degrees, and the ends of the square tubes are welded to the bottom outer wall of the support rod.

[0013] Preferably, an internal groove is formed inside the support rod, and a number of movable balls are evenly distributed inside the internal groove. The arranged movable balls can reduce the friction between the support rod and the lifting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By means of the provided locator fixing plate, support structure and base structure, the steel bar plates in four directions are pulled out, enabling the pins to move. The pins can be stuck on the edges of the grid plate and are firmly fixed by the force of the connecting spring when it retracts. The locator fixing plate can fix locators of various models, achieving reliable on-site storage of locators, saving the time and labor for locator handling, reducing the possibility of air leakage in pipelines and unions, effectively improving the working efficiency during valve maintenance, and providing convenience for the future development of maintenance work.

[0016] 2. By means of the provided support rod, lifting rod, movable ball, threaded hole and bolt, the position of the lifting rod inside the support rod can be adjusted, and then the overall height of the support rod and the lifting rod can be adjusted. Furthermore, the position of the locator fixing plate can be adjusted for easy use, and the movable ball can effectively reduce wear and facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic perspective view of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic perspective view of the support structure of the present utility model;

[0019] Figure 3 It is a schematic perspective view of the base structure of the present utility model;

[0020] Figure 4 For the present utility model Figure 3 The enlarged schematic view of part A.

[0021] In the figure: 1. Maintenance support member; 11. Locator fixing plate; 111. Support block; 112. Elastic protrusion; 113. Threaded sleeve; 114. Threaded rod; 115. Clamping plate; 12. Support structure; 121. Support rod; 1211. Built-in groove; 1212. Movable ball; 122. Lifting rod; 1221. Threaded hole; 123. Bolt; 13. Base structure; 131. Square pipe; 132. Connecting spring; 133. Steel bar plate; 134. Pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1: Please refer to Figure 1 and Figure 3, a special locator maintenance bracket, including a maintenance bracket member 1. The maintenance bracket member 1 includes a locator fixing plate 11 for fixing the locator and a support structure 12 arranged at the lower end of the locator fixing plate 11 for support. Base structures 13 are arranged on the outer sides of the four peripheries of the support structure 12. The overall structure can be clamped on the edges of the grid plate by using the arranged base structures 13;

[0024] The base structure 13 includes a square tube 131 welded to the outer side of the support structure 12 and a connecting spring 132 arranged inside the square tube 131. One end of the connecting spring 132 is welded to the outer wall of the support structure 12, and a steel bar plate 133 is welded to the other end of the connecting spring 132. The steel bar plate 133 slides inside the square tube 131. Two groups of pins 134 are arranged at the lower end of the steel bar plate 133. During use, the steel bar plates 133 in four directions can be pulled out, so that the pins 134 move. The pins 134 can be clamped on the edges of the grid plate and are firmly fixed by the force of the connecting spring 132 recovering, making it more stable during the maintenance process to avoid unnecessary movement. Then, the removed locator is fixed on the locator fixing plate 11, which can realize on-site storage without manual handling, saving manpower.

[0025] Support blocks 111 are arranged on the front and rear sides of the locator fixing plate 11. Elastic protrusions 112 are arranged on the inner sides of the support blocks 111. A threaded sleeve 113 is arranged at the upper end of the locator fixing plate 11. A threaded rod 114 is rotatably connected to the inner side of the threaded sleeve 113. A clamping plate 115 is connected to the lower end of the threaded rod 114. The locator fixing plate 11 is a supporting plate for various locators. When the locator is placed on the support blocks 111, the elastic protrusions 112 that deform under force can help keep the locator stable. When the threaded rod 114 is rotated, the clamping plate 115 can be pushed downward to fix the locator, enabling reliable on-site storage of the locator, saving the time and manpower for locator handling, and reducing the possibility of air leakage in pipelines and unions.

[0026] One end of the connecting spring 132 is welded to the outer wall of the support rod 121. Four groups of square tubes 131 are arranged, and the four groups of square tubes 131 form a 90-degree angle in pairs. The ends of the square tubes 131 are welded to the bottom outer wall of the support rod 121. The arranged connecting spring 132 can pull out the steel bar plate 133, and the pins 134 can be clamped on the edges of the grid plate by the restoring force of the connecting spring 132 itself to achieve the fixing effect.

[0027] In this embodiment: During use, the steel bar plates 133 in four directions can be pulled out, causing the pins 134 to move. The pins 134 can be stuck on the edges of the grille plate and fixed firmly by the force of the connecting spring 132 being retracted, making it more stable during the maintenance process to avoid unnecessary movement. Then, place the locator on the support block 111, and the elastic protrusions 112 that deform under force can help maintain the stability of the locator. When the threaded rod 114 is rotated, it can push the clamping plate 115 downward to complete the fixation of the locator, achieving reliable on-site storage of the locator, saving the time and labor for transporting the locator, reducing the possibility of air leakage in pipelines and unions, and effectively improving the work efficiency during valve maintenance, providing convenience for the future development of maintenance work.

[0028] Embodiment 2: This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figure 2 and Figure 4 , the support structure 12 includes a support rod 121 and a lifting rod 122 arranged inside the support rod 121. A bolt 123 is also arranged on the outer side of the support rod 121. When it is necessary to adjust the use height of the locator fixing plate 11, the lifting rod 122 can be lifted to slide inside the support rod 121 and be fixed in cooperation with the bolt 123, so as to achieve the purpose of adjusting the height.

[0029] Threaded holes 1221 are evenly formed on the outer wall of the lifting rod 122. The threaded holes 1221 are in threaded cooperation with the bolt 123 to achieve the purpose of adjusting the total height of the support structure 12.

[0030] An internal groove 1211 is formed inside the support rod 121, and a number of movable balls 1212 are evenly distributed inside the internal groove 1211. The arranged movable balls 1212 can play a role in reducing the friction between the support rod 121 and the lifting rod 122.

[0031] In this embodiment: The locator fixing plate 11 is supported by the support structure 12. During use, the lifting rod 122 can be pulled upward to adjust the overall height of the lifting rod 122 and the support rod 121, and be fixed through the threaded holes 1221 and the bolt 123 to achieve the purpose of adjusting the total height of the support structure 12. It is flexible to use. And when the lifting rod 122 slides inside the support rod 121, the arranged movable balls 1212 can play a role in reducing the friction between the support rod 121 and the lifting rod 122, thereby effectively reducing wear and being beneficial to the overall use.

[0032] Working principle: During use, the steel bar plates 133 in four directions can be pulled out, causing the pins 134 to move. The pins 134 can be stuck on the edges of the grid plate and fixed firmly by the force of the connecting spring 132 being retracted, making it relatively stable during the maintenance process. Place the locator on the support block 111, and the elastic protrusions 112 that deform under force can help maintain the stability of the locator. When the threaded rod 114 is rotated, the clamping plate 115 can be pushed downward to complete the fixation of the locator, realizing reliable on-site storage of the locator. The locator fixing plate 11 is supported by the support structure 12. During use, the lifting rod 122 can be pulled upward to adjust the overall height of the lifting rod 122 and the support rod 121, and fixed through the threaded hole 1221 and the bolt 123, achieving the purpose of adjusting the total height of the support structure 12.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dedicated locator maintenance bracket, comprising a maintenance bracket member (1), characterized in that: The maintenance support member (1) includes a locator fixing plate (11) for fixing the locator and a support structure (12) provided at the lower end of the locator fixing plate (11) for support. Base structures (13) are provided on the outer sides of the four circumferences of the support structure (12), and the whole can be clamped on the edges of the grid plate by means of the provided base structures (13). The base structure (13) includes a square tube (131) welded to the outer side of the support structure (12) and a connecting spring (132) provided inside the square tube (131). One end of the connecting spring (132) is welded to the outer wall of the support structure (12), and a steel bar plate (133) is welded to the other end of the connecting spring (132). The steel bar plate (133) slides inside the square tube (131), and pins (134) are provided at the lower end of the steel bar plate (133), and there are two groups of the pins (134).

2. The overhaul bracket for a special locator according to claim 1, characterized in that: Support blocks (111) are provided on both the front and rear sides of the locator fixing plate (11). Elastic protrusions (112) are provided on the inner sides of the support blocks (111). A threaded sleeve (113) is provided at the upper end of the locator fixing plate (11). A threaded rod (114) is rotatably connected to the inside of the threaded sleeve (113), and a clamping plate (115) is connected to the lower end of the threaded rod (114).

3. The special locator maintenance bracket according to claim 2, wherein: The support structure (12) includes a support rod (121) and a lifting rod (122) provided inside the support rod (121). A bolt (123) is also provided on the outer side of the support rod (121).

4. The overhaul bracket for a special locator according to claim 3, characterized in that: Threaded holes (1221) are evenly formed in the outer wall of the lifting rod (122), and the threaded holes (1221) are in threaded cooperation with the bolts (123).

5. A special locator maintenance bracket according to claim 4, characterized in that: One end of the connecting spring (132) is welded to the outer wall of the support rod (121). There are four groups of the square tubes (131), and the four groups of the square tubes (131) are formed in pairs at 90 degrees. The ends of the square tubes (131) are welded to the bottom outer wall of the support rod (121).

6. The overhaul bracket of a special locator according to claim 5, characterized in that: An internal groove (1211) is formed inside the support rod (121), and a number of movable balls (1212) are evenly distributed inside the internal groove (1211).