Portable foldable steam turbine maintenance auxiliary platform

Abstract

The utility model discloses portable collapsible steam turbine maintenance auxiliary platform belongs to steam turbine maintenance technical field, including main body frame, main body frame is provided with two groups and symmetrical even distribution, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame is fixedly installed with platform, and the inner chamber of two groups of main body frame

Description

Technical Field

[0001] This utility model relates to the field of steam turbine maintenance technology, specifically a portable and foldable steam turbine maintenance auxiliary platform. Background Technology

[0002] A steam turbine maintenance auxiliary platform is an auxiliary device used in the steam turbine maintenance process, designed to improve maintenance efficiency, ensure maintenance safety, and facilitate maintenance operations.

[0003] Chinese patent discloses a motor-assisted maintenance platform (publication number CN222063285U). This patent includes a base, with support legs fixedly installed at each of the four corners of the base's top. A top seat is fixedly installed on the top of each support leg, and a maintenance platform is fixedly installed on the top of the top seat. A transmission mechanism is fixedly installed in the middle of one side of the maintenance platform, and clamping mechanisms are fixedly installed on both sides of the top of the maintenance platform. The transmission mechanism includes a guide frame, which is fixedly installed in the middle of one side of the maintenance platform. Guide rollers are rotatably connected at equal intervals inside the guide frame. A guide rail is fixedly installed in the middle of the bottom of the guide frame, and a transmission component is movably installed inside the guide rail. The transmission component is located on two wheels of the guide frame.

[0004] Therefore, based on the above search and combined with existing information, in steam turbine maintenance work, maintenance personnel often need to inspect, repair and debug steam turbine components at different heights and positions. However, this patent is bulky and difficult to transport to the maintenance site, especially in some steam turbine rooms with narrow spaces and limited passages, where it is extremely inconvenient to move. At the same time, the device cannot flexibly adjust its height and angle according to the specific maintenance parts of the steam turbine, making it difficult to meet diverse maintenance needs, reducing the maintenance efficiency of the device, and increasing the labor intensity of maintenance personnel. Utility Model Content

[0005] The purpose of this invention is to provide a portable and foldable auxiliary platform for steam turbine maintenance, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A portable and foldable steam turbine maintenance auxiliary platform includes a main frame. The main frame is provided in two sets and is symmetrically and evenly distributed. The platform is fixedly installed in the inner cavity of both sets of the main frame. The two sets of the main frame are rotatably connected by hinges. Support tubes for adjusting the overall height of the device are installed below the two sets of the main frame.

[0008] The two sets of main frames are fixedly installed on one side of each other to fix the platform in the unfolded state. The outer wall of the support tube is fixedly fitted with a fastening structure to prevent the support tube from sliding accidentally. The top of the support tube is rotatably connected to the bottom surface of the platform through a positioning structure, and the positioning structure is used to limit the angle of the support tube after rotation and folding.

[0009] As a further embodiment of this utility model, the locking structure includes a fixing block, which is fixedly installed in the inner cavity of one set of main frames, and a positioning block is fixedly installed in the inner cavity of another set of main frames. A moving rod is slidably connected to the inner cavity of the fixing block, and a pressure block for locking is slidably sleeved on the top end of the moving rod. A pad is fixedly installed on the top end of the positioning block, and the pad fits against the pressure block.

[0010] As a further embodiment of this utility model, a fixed shaft is fixedly installed on the inner wall of the fixed block, and a tension spring for providing the moving power of the pressure block is fixedly connected to the outer wall of the fixed shaft, and the tension spring is fixedly connected to the outer wall of the moving rod.

[0011] As a further embodiment of this utility model, a threaded rod is fixedly installed on the inner wall of the fixing block, a pressure block is passed through the top end of the threaded rod and a rotating block for pushing the pressure block to reset is fixedly sleeved thereon, and a rotating sleeve is fixedly sleeved on the outer wall of the rotating block.

[0012] As a further embodiment of this utility model, the fastening structure includes a threaded sleeve, which is fixedly sleeved on the outer wall of the support tube, and a fastening tube for fixing the support tube is threaded onto the outer wall of the threaded sleeve.

[0013] As a further embodiment of this utility model, the positioning structure includes a top block, which is fixedly installed at the top of the support tube. A clamping block for limiting the rotation of the support tube is fixedly installed at the bottom of the platform. The clamping block and the top block are both provided with serrated blocks on their adjacent sides, and the two mesh with each other. A rotating shaft is rotatably inserted into the inner cavity of the top block. One end of the rotating shaft passes through the clamping block and is rotatably connected to a handle for pushing the clamping block closer to the top block.

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

[0015] 1. When in use, this utility model connects two sets of platforms via hinges, allowing for quick folding and volume reduction for easy transport to the maintenance site. Simultaneously, the rotating and foldable extendable support tube ensures the device can be flexibly adjusted in height according to actual needs, maintaining horizontal stability under different terrains and equipment heights, providing a reliable working surface for maintenance. Furthermore, its folding function facilitates quick platform storage, significantly reducing the device's size. Combined with the hinged main frame, the entire platform is easier to transport and store, adapting to complex transportation scenarios such as narrow passages and stairs. The wear-resistant and waterproof storage bag, along with straps, secures the folded platform and support tube, making the device easy to move in complex environments. From transportation and use to storage, this utility model provides convenient and efficient support for turbine maintenance work, improving the convenience and safety of maintenance operations.

[0016] 2. When in use, this utility model ensures the stable operation and flexible adjustment of the turbine maintenance auxiliary platform through a locking structure, a fastening structure, and a positioning structure. The locking structure, through components such as tension springs and pressure blocks, reliably locks the platform when it is unfolded, preventing accidental folding. The fastening structure, with its conical inward design of threaded sleeves and fastening tubes, precisely fixes the height of the support tube after adjustment, preventing slippage. The positioning structure, with the serrated engagement of the top block and clamping block, and the operation of the handle, allows for flexible limitation and release of the rotation angle of the support tube, ensuring the stability and safety of the platform under different usage conditions and providing a solid and reliable support for turbine maintenance operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a portable and foldable auxiliary platform for steam turbine maintenance.

[0018] Figure 2 A bottom view of the overall structure of a portable, foldable auxiliary platform for steam turbine maintenance.

[0019] Figure 3 This is a structural diagram of the locking structure in a portable, foldable steam turbine maintenance auxiliary platform.

[0020] Figure 4 This is a cross-sectional view of the locking structure in a portable, foldable steam turbine maintenance auxiliary platform.

[0021] Figure 5 This is a split diagram of the support pipe in a portable, foldable steam turbine maintenance auxiliary platform.

[0022] Figure 6 This is a structural diagram of the storage bag in a portable, foldable auxiliary platform for steam turbine maintenance.

[0023] In the diagram: 1. Main frame; 2. Platform; 3. Hinge; 4. Handle; 5. Support tube; 6. Locking structure; 601. Fixing block; 602. Positioning block; 603. Moving rod; 604. Pressure block; 605. Pad block; 606. Fixing shaft; 607. Tension spring; 608. Mounting plate; 609. Threaded rod; 610. Rotating block; 611. Rotating sleeve; 612. Return spring; 7. Fastening structure; 701. Threaded sleeve; 702. Fastening tube; 703. Anti-slip block; 8. Positioning structure; 801. Top block; 802. Clamping block; 803. Rotating shaft; 804. Handle; 9. Rubber anti-slip pad; 10. Storage bag; 11. Strap; 12. Caster wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 , Figure 2 , Figure 6 A portable and foldable turbine maintenance auxiliary platform includes a main frame 1, which has two sets of symmetrically and evenly distributed main frames 1. Platforms 2 are fixedly installed in the inner cavities of both sets of main frames 1. The two sets of main frames 1 are rotatably connected by hinges 3, which allow them to rotate and fold together, so that the device can be easily carried to the maintenance site. Handles 4 are fixedly installed on the side of the two sets of main frames 1 that facilitate the handling of the device by maintenance personnel. Support tubes 5 are installed at the bottom of both sets of main frames 1 to adjust the overall height of the device, so that the device can be quickly adjusted according to actual needs, providing convenient and efficient work support for subsequent turbine maintenance work.

[0026] A locking structure 6 is fixedly installed on one side of the two main frames 1 that are close to each other to fix the platform 2 in the unfolded state. When the platform 2 is unfolded to the use state, it is locked by the locking structure 6 to prevent the platform 2 from being accidentally folded. The outer wall of the support tube 5 is fixedly fitted with a fastening structure 7 to prevent the support tube 5 from accidentally sliding, which effectively ensures the reliability and safety of the device after height adjustment. The top of the support tube 5 is rotatably connected to the bottom surface of the platform 2 through the positioning structure 8, and the positioning structure 8 is used to limit the angle of the support tube 5 after rotation and folding.

[0027] Specifically, a rubber anti-slip pad 9 is fixedly installed at the bottom of the support pipe 5 to increase the friction between the support pipe 5 and the ground and ensure the stability of the device during use. The support pipe 5 consists of a fixed pipe and a movable pipe. The movable pipe is slidably nested inside the fixed pipe. The overall length of the support pipe 5 is precisely adjusted using the fastening structure 7 to adapt to different working height requirements. The outer surface of the movable pipe is provided with scale lines to ensure that the adjustment height of the four sets of support pipes 5 is consistent, reduce adjustment errors, and ensure that the platform 2 is level.

[0028] More specifically, the device is equipped with a dedicated storage bag 10, which is made of wear-resistant and waterproof Oxford cloth. The inner wall of the storage bag 10 is fixedly installed with straps 11 for fixing the support tube 5 and the folded platform 2. After the entire device is stored and organized, it can be carried on the body like a backpack, making it easy to move in the complex turbine room environment. The bottom of the storage bag 10 is fixedly installed with four sets of universal wheels 12 for assisting in movement and rotation.

[0029] Please see Figure 3 , Figure 4 The locking structure 6 includes a fixing block 601, which is fixedly installed in the inner cavity of one set of main frames 1. A positioning block 602 is fixedly installed in the inner cavity of another set of main frames 1. A moving rod 603 is slidably connected to the inner cavity of the fixing block 601. A pressure block 604 for locking is slidably sleeved on the top end of the moving rod 603. A pad 605 is fixedly installed on the top end of the positioning block 602, and the pad 605 is in contact with the pressure block 604.

[0030] A fixed shaft 606 is fixedly installed on the inner wall of the fixed block 601, and a tension spring 607 for providing the moving power of the pressure block 604 is fixedly connected to the outer wall of the fixed shaft 606, and the tension spring 607 is fixedly connected to the outer wall of the moving rod 603.

[0031] Specifically, the inner cavity of the fixing block 601 is provided with a moving groove for providing movement of the moving rod 603, and the moving rod 603 is located in the moving groove. A limiting block for preventing the moving rod 603 from falling off is fixedly installed at the bottom end of the moving rod 603, and the limiting block is located in the moving groove.

[0032] The tension spring 607 pulls the moving rod 603 to move towards the fixed shaft 606, which drives the pressure block 604 to move and press against the upper surface of the pad 605, thereby locking the platform 2 in the unfolded state and preventing the platform 2 from folding accidentally. The pad 605 is made of silicone material, which further strengthens the friction between it and the pressure block 604 and ensures the locking effect of the locking structure 6.

[0033] More specifically, both sides of the fixing block 601 and the positioning block 602 are fixedly connected with mounting plates 608 for fixing and installing the locking structure 6, and the mounting plates 608 are fixedly connected to the main frame 1 by bolts.

[0034] A threaded rod 609 is fixedly installed on the inner wall of the fixed block 601 by bolts. A pressure block 604 passes through the top of the threaded rod 609 and a rotating block 610 for pushing the pressure block 604 to reset is fixedly sleeved. A rotating sleeve 611 is fixedly sleeved on the outer wall of the rotating block 610.

[0035] Specifically, the inner cavity of the pressure block 604 is provided with a sliding groove for the threaded rod 609 to slide, and the threaded rod 609 is located in the sliding groove. A protruding block is provided on one side of the bottom end of the rotating block 610. By rotating the rotating block 610, the protruding block is used to push the pressure block 604 to move and reset, thereby releasing the pressure of the pressure block 604 on the pad 605.

[0036] More specifically, the threaded rod 609 is fitted with a return spring 612 for pushing the pressure block 604 to move upward and reset. When the rotating block 610 is rotated, it pushes the pressure block 604 downward along the threaded rod 609, thereby further strengthening its pressure on the pad 605. At the same time, the outer wall of the moving rod 603 is fixedly fitted with a limiting ring to prevent the pressure block 604 from moving downward excessively.

[0037] Example 2: Please refer to Figure 5 Based on embodiment 1, the fastening structure 7 includes a threaded sleeve 701, which is fixedly sleeved on the outer wall of the support tube 5, and the outer wall of the threaded sleeve 701 is threaded with a fastening tube 702 for fixing the support tube 5.

[0038] Specifically, the threaded sleeve 701 is located at the top of the fixed tube, and the moving tube is slidably connected to the threaded sleeve 701. The outer wall of the fastening tube 702 is provided with an anti-slip block 703.

[0039] More specifically, the top ends of both the threaded sleeve 701 and the fastening tube 702 are tapered, and the top end of the threaded sleeve 701 has multiple notches. When the fastening tube 702 is rotated and moved down along the threaded sleeve 701, the tapered features and notches of both cause the threaded sleeve 701 to contract inward during the downward rotation of the fastening tube 702, thereby achieving the effect of clamping and fixing the moving tube. This can stably maintain the clamping state of the moving tube, ensure the clamping force is long-lasting, and prevent the moving tube from loosening. At the same time, the clamping force on the moving tube can be flexibly adjusted by controlling the number of rotations and the tightening degree of the fastening tube 702 to adapt to different working requirements.

[0040] Please see Figure 5The positioning structure 8 includes a top block 801, which is fixedly installed at the top of the support tube 5 and located at the top of the moving tube. A clamping block 802 for limiting the rotation of the support tube 5 is fixedly installed at the bottom of the platform 2. The clamping block 802 and the top block 801 are provided with serrated blocks on their adjacent sides and the two mesh with each other. When the two mesh, the rotation of the support tube 5 relative to the platform 2 can be effectively limited, ensuring the stability of the platform 2 during use. A rotating shaft 803 is rotatably inserted into the inner cavity of the top block 801. The rotating shaft 803 is a key component that connects the two and enables them to rotate relative to each other, which is used to ensure the smooth operation of the positioning structure 8. One end of the rotating shaft 803 passes through the clamping block 802 and is rotatably connected to a handle 804 for pushing the clamping block 802 closer to the top block 801 through a pin.

[0041] Specifically, the end of the handle 804 near the clamping block 802 is circular, and the pin inserted into its inner cavity is located at the eccentric point of the circle. When the handle 804 is rotated, the clamping block 802 is pushed closer to the top block 801 by utilizing the eccentric principle. When they are close, the serrated blocks of the two are tightly engaged to achieve the positioning of the support tube 5. When they are far away, the positioning can be released, which makes it easy to adjust the angle or position of the support tube 5 relative to the platform 2. The clamping block 802 is made of alloy steel with a certain toughness. Utilizing the characteristics of this material, it can automatically reset, thereby releasing the clamping of the top block 801.

[0042] The working principle of this utility model is as follows:

[0043] First, the maintenance personnel hold the handles 4 on both sides and flip the main frame 1 and platform 2, allowing them to rotate smoothly along the hinge 3 at the folding point until they are flat. Then, the locking structure 6 is used to prevent accidental folding. By twisting the rotating sleeve 611, the rotating block 610 is driven to release the protrusion at the bottom of the rotating block 610 from the pressure block 604. Then, the tension spring 607 pulls the moving rod 603, causing the pressure block 604 to move and press against the pad 605 at the top of the positioning block 602. Simultaneously, the rotating block 610 moves downward as it rotates, pressing the pressure block 604 more closely against the pad 605, thus locking the platform 2 in the unfolded state and preventing accidental folding. Conversely, the rotating block 610 is reversed, and the protrusion at its bottom pushes the pressure block 604 back to its original position. Under the push of the return spring 612, the pressure block 604 moves upward to release the pressure on the two sets of platforms 2.

[0044] After unfolding platform 2, rotate and adjust the angle of support tube 5 until it is perpendicular to the bottom surface of platform 2. Then, rotate handle 804 to push clamping block 802 close to top block 801 using the eccentric principle, so that the serrated blocks of the two are tightly engaged, restricting the rotation of support tube 5 relative to platform 2. When it is necessary to release the restriction, release handle 804, and use the toughness of alloy steel material of clamping block 802 to automatically reset and release the clamp on top block 801.

[0045] Then, after sliding the moving tube inside the fixed tube to the required height, rotate the fastening tube 702 in the fastening structure 7 to move it down along the threaded sleeve 701. Utilizing the conical features of both and the notch at the top of the threaded sleeve 701, the threaded sleeve 701 is retracted, thereby clamping the fixed moving tube and achieving precise adjustment of the overall length of the support tube 5. At the same time, the scale lines on the outer surface of the moving tube help maintenance personnel ensure that the four sets of support tubes 5 are adjusted to the same height, ensuring that the platform 2 is level.

[0046] After use, fold the platform 2 and put it into the special storage bag 10. Secure the support tube 5 and the platform 2 with the straps 11. With the universal wheels 12 at the bottom of the storage bag 10, it is convenient for maintenance personnel to move and carry in the complex turbine room environment.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable, foldable steam turbine maintenance auxiliary platform, comprising a main frame (1), characterized in that, The main frame (1) is provided in two sets and is symmetrically and evenly distributed. The inner cavity of the two sets of main frames (1) is fixedly installed with a platform (2). The two sets of main frames (1) are rotatably connected by a hinge (3). The bottom of the two sets of main frames (1) is equipped with a support tube (5) for adjusting the overall height of the device. The two main frames (1) are fixedly installed on one side of each other to fix the platform (2) in the unfolded state. The outer wall of the support tube (5) is fixedly fitted with a fastening structure (7) to prevent the support tube (5) from sliding accidentally. The top of the support tube (5) is rotatably connected to the bottom surface of the platform (2) through a positioning structure (8), and the positioning structure (8) is used to limit the angle of the support tube (5) after rotation and folding.

2. The portable and foldable steam turbine maintenance auxiliary platform according to claim 1, characterized in that, The locking structure (6) includes a fixing block (601), which is fixedly installed in the inner cavity of one set of main frames (1). A positioning block (602) is fixedly installed in the inner cavity of another set of main frames (1). A moving rod (603) is slidably connected to the inner cavity of the fixing block (601). A pressure block (604) for locking is slidably sleeved on the top end of the moving rod (603). A pad (605) is fixedly installed on the top end of the positioning block (602), and the pad (605) fits against the pressure block (604).

3. The portable and foldable steam turbine maintenance auxiliary platform according to claim 2, characterized in that, A fixed shaft (606) is fixedly installed on the inner wall of the fixed block (601), and a tension spring (607) for providing the moving power of the pressure block (604) is fixedly connected to the outer wall of the fixed shaft (606), and the tension spring (607) is fixedly connected to the outer wall of the moving rod (603).

4. The portable and foldable steam turbine maintenance auxiliary platform according to claim 2, characterized in that, A threaded rod (609) is fixedly installed on the inner wall of the fixed block (601). A pressure block (604) passes through the top end of the threaded rod (609) and a rotating block (610) for pushing the pressure block (604) to reset is fixedly sleeved on it. A rotating sleeve (611) is fixedly sleeved on the outer wall of the rotating block (610).

5. The portable and foldable steam turbine maintenance auxiliary platform according to claim 1, characterized in that, The fastening structure (7) includes a threaded sleeve (701), which is fixedly sleeved on the outer wall of the support tube (5), and the outer wall of the threaded sleeve (701) is threaded with a fastening tube (702) for fixing the support tube (5).

6. The portable and foldable steam turbine maintenance auxiliary platform according to claim 1, characterized in that, The positioning structure (8) includes a top block (801), which is fixedly installed on the top of the support tube (5). The bottom end of the platform (2) is fixedly installed with a clamping block (802) for limiting the rotation of the support tube (5). The clamping block (802) and the top block (801) are provided with serrated blocks on their adjacent sides, and the two are meshed with each other. The inner cavity of the top block (801) is rotatably inserted with a rotating shaft (803). One end of the rotating shaft (803) passes through the clamping block (802) and is rotatably connected to a handle (804) for pushing the clamping block (802) closer to the top block (801).

Images