A module protective fence for overhaul of a hydroelectric generating set

Abstract

The utility model discloses a module protective fence for water turbine generator unit maintenance relates to the technical field of protective facilities, including the protective fence unit on water turbine generator unit according to the circumferential uniform distribution, each protective fence unit all includes special -shaped base, sets up the outer thread stand column subassembly of special -shaped base outside, sets up the inner thread stand column subassembly of special -shaped base inside, sets up the fence board subassembly on outer thread stand column subassembly and inner thread stand column subassembly respectively, the radial adjusting component for the distance between outer thread stand column subassembly and inner thread stand column subassembly is used in tension or adjusting. The utility model discloses modular structure, and the base is fixed on the upper frame own foot screw hole and radial bolt through bolt, and is fused into an organic whole with the equipment own fixed bolt, not only convenient to dismount, and fixed firm, and personnel leans on the risk of high altitude falling does not exist when, the fence is double circle fence, and the mechanical intensity is high, and the stability is strong, and the greater external force impact also can not fall and fall to the foundation pit.

Description

Technical Field

[0001] This utility model relates to the field of protective facility technology, and more specifically to the field of modular protective fence technology for the maintenance of hydro-generator sets. Background Technology

[0002] Currently, when overhauling large hydroelectric generator units, movable fences are generally used to enclose the foundation pit to prevent personnel and objects from falling from heights. However, due to structural defects, the following problems and safety hazards or risks exist: 1. The base of the movable fence is not fixed with bolts: This makes the fence unstable and poses a risk of falling from a height when people lean on it.

[0003] 2. The fence is not reinforced: If there is an external impact, the fence may fall into the pit, which may lead to serious consequences.

[0004] 3. Inadequate bottom protection: The diameter of the foundation pit for a large hydroelectric generator set can reach 20 meters. The drop between the fence and the working surface of the wind tunnel is about 9 meters, and the drop to the working surface of the spiral casing is about 19 meters. Objects falling from the gap at the bottom of the fence may have serious consequences.

[0005] 4. It is not convenient to connect with the ladders of the upper and lower rotors, nor can it be used as a fixed point to suspend safety belts, etc. Utility Model Content

[0006] The purpose of this utility model is to provide a modular protective fence for the maintenance of hydro-generator sets in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model provides a modular protective fence for the maintenance of a hydro-generator set, including protective fence units evenly distributed around the circumference of the hydro-generator set. Each protective fence unit includes an irregularly shaped base, an externally threaded column assembly disposed on the outside of the irregularly shaped base, an internally threaded column assembly disposed on the inside of the irregularly shaped base, a fence plate assembly disposed on the externally threaded column assembly and the internally threaded column assembly respectively, and a radial adjustment assembly for tightening or adjusting the distance between the externally threaded column assembly and the internally threaded column assembly. The irregularly shaped base is fixed to the base bolt holes and radial bolts on the upper frame of the hydro-generator unit by a fixing component.

[0008] Specifically, the fence adopts a modular structure. The base is fixed to the bottom bolt holes and radial bolts of the upper frame with bolts, and is integrated with the fixing bolts of the equipment itself. It is not only easy to assemble and disassemble and securely fixed, but also eliminates the risk of falling from a height when people lean on it. The fence is a double-ring fence with high mechanical strength and stability. It will not tip over or fall into the foundation pit even under large external impacts.

[0009] Whether it is a single unit or multiple discontinuous units, the fence is very sturdy, and when combined into a whole, it is even more robust. It can fully meet the safety protection requirements of the hydro-generator pit, and is practical, innovative, novel, and highly versatile. It can be widely used in the maintenance of hydro-generator units.

[0010] In one embodiment, the irregular base is a fan-shaped two-stage stepped base, which includes an outer fan-shaped base plate. The outer fan-shaped base plate is positioned higher than the inner fan-shaped base plate, and the outer fan-shaped base plate and the inner fan-shaped base plate are connected by a vertical arc block. The inner side of the inner fan-shaped base plate is provided with a vertical arc-shaped mounting plate that matches the inner edge of the inner fan-shaped base plate. The vertical arc-shaped mounting plate is fixed to the base bolt holes and radial bolts of the upper frame of the hydro-generator unit by bolts.

[0011] In one embodiment, the external threaded column assembly includes two external threaded columns disposed on the two outer edges of the outer fan-shaped base plate, and each external threaded column is installed on the outer edge of the outer fan-shaped base plate by bottom thread; The internal threaded column assembly includes two internal threaded columns disposed on the two inner edges of the outer fan-shaped base plate. Each internal threaded column is installed on the inner edge of the outer fan-shaped base plate through bottom threads. The radial adjustment assembly includes two sets of radial adjustment units, each of which is located between the external threaded column and the internal threaded column on the same side.

[0012] In one embodiment, each radial adjustment unit includes at least two radial adjustment rods arranged vertically. Each radial adjustment includes a first sleeve and a second sleeve fitted inside the first sleeve. The end of the first sleeve away from the second sleeve is provided with a first clamp fitted on an externally threaded column, and the end of the second sleeve away from the first sleeve is provided with a second clamp fitted on an internally threaded column.

[0013] In one embodiment, at least two lifting lugs are provided on the inner fan-shaped base plate.

[0014] Specifically, the lifting lugs are used to secure the protective ropes during installation, as well as to suspend the safety nets and safety belts.

[0015] In one embodiment, the fence panel assembly on the external threaded column assembly or the internal threaded column assembly includes fence panels arranged sequentially from top to bottom. Each fence panel is a square panel, and each square panel has a plug-in block at both ends. Each external threaded column or each internal threaded column is provided with a plug-in interface that mates with the corresponding plug-in block.

[0016] In one embodiment, auxiliary fence units are respectively provided on the inner and outer sides between two adjacent protective fence units, and the two sides of the auxiliary fence unit on the outer side are respectively connected to two external threaded columns close to the two adjacent protective fence units. The auxiliary fence unit located on the inside is connected to two internally threaded posts on each side of the adjacent two protective fence units.

[0017] In one embodiment, all outer fan-shaped base plates are fitted with an annular plate, which is parallel to the position of the inner fan-shaped base plates.

[0018] In one embodiment, kick plates are provided on the outer fan-shaped base plates between two adjacent outer fan-shaped base plates to prevent objects from falling into the pit through the bottom gap.

[0019] Specifically, by tightly covering the bottom of the fence with kickboards, objects can be effectively prevented from falling into the pit through the gaps at the bottom.

[0020] In one implementation, each auxiliary fence unit includes three fence panels arranged side by side.

[0021] The beneficial effects of this utility model are as follows: 1. This utility model has a reasonable design. The fence adopts a modular structure. The base is fixed to the bottom screw holes and radial bolts of the upper frame by bolts, and is integrated with the fixing bolts of the equipment itself. It is not only easy to disassemble and assemble, and is firmly fixed, but also eliminates the risk of falling from a height when people lean on it.

[0022] 2. The fence is a double-ring fence with high mechanical strength and stability. It will not tip over or fall into the foundation pit even under large external impacts.

[0023] 3. Whether it is a single unit or multiple discontinuous units, the fence is very sturdy, and the whole unit is even more sturdy. It can fully meet the safety protection needs of the hydro-generator pit. It is practical, innovative, novel, and highly versatile, and can be widely used in the maintenance of hydro-generator units.

[0024] 4. Self-safety protection: The base and other components are secured with protective ropes during installation, and the inner ring fence arc frame is secured with bolts, eliminating the possibility of components falling. 5. By tightly covering the bottom of the fence with kickboards, objects can be effectively prevented from falling into the foundation pit through the gaps at the bottom.

[0025] 6. The fence units are all sturdy and can be used to hang safety belts, etc., via the lugs on the base. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the protective fence unit structure of this utility model; Figure 2 This is a schematic diagram of two adjacent protective fence units; Figure 3 This is a structural diagram of the irregularly shaped base; Figure 4 yes Figure 3 A structural diagram from another perspective; Figure 5 This is a schematic diagram of the structure of this utility model; Figure descriptions: 1. Fence panel assembly; 2. Radial adjustment assembly; 3. Fixing assembly; 4. Lifting lug; 5. Irregularly shaped base; 6. Kickboard; 7. External threaded column assembly; 51. Outer fan-shaped base plate; 52. Inner fan-shaped base plate. Detailed Implementation

[0028] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Example 1 like Figures 1 to 5 As shown, this embodiment provides a modular protective fence for the maintenance of a hydro-generator set, including protective fence units evenly distributed around the circumference of the hydro-generator set. Each protective fence unit includes an irregularly shaped base 5, an externally threaded column assembly 7 disposed on the outside of the irregularly shaped base 5, an internally threaded column assembly disposed on the inside of the irregularly shaped base 5, a fence plate assembly 1 disposed on the externally threaded column assembly 7 and the internally threaded column assembly respectively, and a radial adjustment assembly 2 for tightening or adjusting the distance between the externally threaded column assembly 7 and the internally threaded column assembly. The irregularly shaped base 5 is fixed to the base bolt holes and radial bolts on the upper frame of the hydro-generator unit by the fixing component 3.

[0033] Specifically, the fence adopts a modular structure. The base is fixed to the bottom bolt holes and radial bolts of the upper frame with bolts, and is integrated with the fixing bolts of the equipment itself. It is not only easy to assemble and disassemble and securely fixed, but also eliminates the risk of falling from a height when people lean on it. The fence is a double-ring fence with high mechanical strength and stability. It will not tip over or fall into the foundation pit even under large external impacts.

[0034] Whether it is a single unit or multiple discontinuous units, the fence is very sturdy, and when combined into a whole, it is even more robust. It can fully meet the safety protection requirements of the hydro-generator pit, and is practical, innovative, novel, and highly versatile. It can be widely used in the maintenance of hydro-generator units.

[0035] Example 2 This embodiment provides a modular protective fence for the maintenance of a hydro-generator set, including protective fence units evenly distributed around the circumference of the hydro-generator set. Each protective fence unit includes an irregularly shaped base 5, an externally threaded column assembly 7 disposed on the outside of the irregularly shaped base 5, an internally threaded column assembly disposed on the inside of the irregularly shaped base 5, a fence plate assembly 1 disposed on the externally threaded column assembly 7 and the internally threaded column assembly respectively, and a radial adjustment assembly 2 for tightening or adjusting the distance between the externally threaded column assembly 7 and the internally threaded column assembly. The irregularly shaped base 5 is fixed to the base bolt holes and radial bolts on the upper frame of the hydro-generator unit by the fixing component 3.

[0036] The irregular base 5 is a fan-shaped two-stage base. The irregular base 5 includes an outer fan-shaped base plate 51, which is positioned higher than the inner fan-shaped base plate 52. The outer fan-shaped base plate 51 and the inner fan-shaped base plate 52 are connected by a vertical arc block. The inner side of the inner fan-shaped base plate 52 is provided with a vertical arc-shaped mounting plate that mates with the inner edge of the inner fan-shaped base plate 52. The vertical arc-shaped mounting plate is fixed to the base bolt holes and radial bolts of the upper frame of the hydro-generator unit by bolts.

[0037] Example 3 This embodiment is a further optimization based on Embodiment 1, specifically: The external threaded column assembly 7 includes two external threaded columns disposed on the two outer edges of the outer fan-shaped base plate 51. Each external threaded column is installed on the outer edge of the outer fan-shaped base plate 51 by bottom thread. The internal threaded column assembly includes two internal threaded columns disposed on the two inner edges of the outer fan-shaped base plate 51. Each internal threaded column is installed on the inner edge of the outer fan-shaped base plate 51 by bottom thread. The radial adjustment assembly 2 includes two sets of radial adjustment units, each of which is disposed between the external threaded column and the internal threaded column on the same side.

[0038] Example 4 This embodiment is a further optimization based on embodiment 3, specifically: Each radial adjustment unit includes at least two radial adjustment rods arranged vertically. Each radial adjustment includes a first sleeve and a second sleeve fitted inside the first sleeve. The end of the first sleeve away from the second sleeve is provided with a first sleeve clamp fitted on an external threaded column, and the end of the second sleeve away from the first sleeve is provided with a second sleeve clamp fitted on an internal threaded column.

[0039] At least two lifting lugs 4 are provided on the inner fan-shaped base plate 52.

[0040] Specifically, the lifting lug 4 is used both to secure the protective rope during installation and to suspend the safety net and safety belt.

[0041] Example 5 This embodiment is a further optimization based on embodiment 4, specifically: The fence panel assembly 1 on the external thread column assembly 7 or the internal thread column assembly includes fence panels arranged sequentially from top to bottom. Each fence panel is a square panel, and each square panel has a plug-in block at both ends. Each external thread column or each internal thread column is provided with a plug-in interface that mates with the corresponding plug-in block.

[0042] Auxiliary fence units are set on the inner and outer sides between two adjacent protective fence units. The auxiliary fence units on the outer side are connected to two external threaded columns close to the two adjacent protective fence units on both sides. The auxiliary fence unit located on the inside is connected to two internally threaded posts on each side of the adjacent two protective fence units.

[0043] Example 6 This embodiment is a further optimization based on embodiment 5, specifically: All outer fan-shaped base plates 51 are equipped with an annular plate, which is parallel to the position of the inner fan-shaped base plate 52.

[0044] Both outer fan-shaped base plates 51 between two adjacent outer fan-shaped base plates 51 are equipped with kick plates 6 to prevent objects from falling into the foundation pit through the bottom gap.

[0045] Specifically, by tightly covering the bottom of the fence with the kick plate 6, objects can be effectively prevented from falling into the pit through the gap at the bottom.

[0046] Each auxiliary fence unit consists of three fence panels arranged side by side.

Claims

1. A modular protective fence for the maintenance of hydro-generator sets, characterized in that, The protective fence units are evenly distributed around the circumference of the hydro-generator unit. Each protective fence unit includes a shaped base (5), an external threaded column assembly (7) disposed on the outside of the shaped base (5), an internal threaded column assembly disposed on the inside of the shaped base (5), a fence plate assembly (1) disposed on the external threaded column assembly (7) and the internal threaded column assembly respectively, and a radial adjustment assembly (2) for tightening or adjusting the distance between the external threaded column assembly (7) and the internal threaded column assembly. The irregular base (5) is fixed to the base bolt holes and radial bolts on the upper frame of the hydro-generator unit by bolt fixing assembly (3).

2. The modular protective fence for the maintenance of a hydro-generator unit according to claim 1, characterized in that, The irregular base (5) is a fan-shaped two-stage base. The irregular base (5) includes an outer fan-shaped base plate (51). The position of the outer fan-shaped base plate (51) is higher than that of the inner fan-shaped base plate (52). The outer fan-shaped base plate (51) and the inner fan-shaped base plate (52) are connected by a vertical arc block. The inner side of the inner fan-shaped base plate (52) is provided with a vertical arc-shaped mounting plate that matches the inner edge of the inner fan-shaped base plate (52). The vertical arc-shaped mounting plate is fixed to the base bolt holes and radial bolts of the upper frame of the hydro-generator unit by bolts.

3. A modular protective fence for the maintenance of a hydro-generator unit according to claim 2, characterized in that, The external threaded column assembly (7) includes two external threaded columns disposed on the two outer edges of the outer fan-shaped base plate (51), and each external threaded column is installed on the outer edge of the outer fan-shaped base plate (51) by bottom thread; The internal threaded column assembly includes two internal threaded columns disposed on the two inner edges of the outer fan-shaped base plate (51), and each internal threaded column is installed on the inner edge of the outer fan-shaped base plate (51) by bottom thread; The radial adjustment assembly (2) includes two sets of radial adjustment units, each of which is disposed between the external threaded column and the internal threaded column on the same side.

4. A modular protective fence for the maintenance of a hydro-generator unit according to claim 3, characterized in that, Each radial adjustment unit includes at least two radial adjustment rods arranged vertically. Each radial adjustment includes a first sleeve and a second sleeve sleeved inside the first sleeve. The first sleeve is provided with a first clamp sleeved on the external threaded column at the end away from the second sleeve, and the second sleeve is provided with a second clamp sleeved on the internal threaded column at the end away from the first sleeve.

5. A modular protective fence for the maintenance of a hydro-generator unit according to claim 2, characterized in that, At least two lifting lugs (4) are provided on the inner fan-shaped base plate (52).

6. A modular protective fence for the maintenance of a hydro-generator unit according to claim 3, characterized in that, The fence panel assembly (1) on the external threaded column assembly (7) or the internal threaded column assembly includes fence panels arranged sequentially from top to bottom. Each fence panel is a square panel, and each square panel has a plug-in block at both ends. Each external threaded column or each internal threaded column has a plug-in interface that mates with the corresponding plug-in block.

7. A modular protective fence for the maintenance of a hydro-generator unit according to claim 6, characterized in that, Auxiliary fence units are respectively provided on the inner and outer sides between two adjacent protective fence units. The auxiliary fence units on the outer side are respectively connected to two external threaded columns close to the two adjacent protective fence units. The auxiliary fence unit located on the inner side is connected to two internally threaded columns that are close to the two adjacent protective fence units on both sides.

8. A modular protective fence for the maintenance of a hydro-generator unit according to claim 7, characterized in that, All of the outer fan-shaped base plates (51) are equipped with an annular plate, which is parallel to the position of the inner fan-shaped base plate (52).

9. A modular protective fence for the maintenance of a hydro-generator unit according to claim 8, characterized in that, Each of the two adjacent outer fan-shaped base plates (51) is provided with a kick plate (6) to prevent objects from falling into the pit through the bottom gap.

10. A modular protective fence for the maintenance of a hydro-generator unit according to claim 7, characterized in that, Each of the auxiliary fence units includes three fence panels arranged side by side.

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