A safety protection device for manholes on a wind turbine yaw platform

Abstract

This utility model relates to the field of wind turbine safety protection technology, specifically disclosing a safety protection device for a manhole on a wind turbine yaw platform. The device includes a manhole frame, a first protective plate, and a second protective plate. The first and second protective plates are symmetrically arranged on both sides of the manhole frame. The first and second protective plates are respectively provided with a first guide groove and a second guide groove. Two sets of limiting components are symmetrically arranged inside the manhole frame. The two sets of limiting components are respectively arranged on the outer sides of the first and second protective plates. The device also includes a locking component, which is located inside the first protective plate and used to lock the first and second protective plates. This allows for convenient and effortless opening of the manhole safety door on the yaw platform, effectively saving the physical exertion of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine safety protection technology, and in particular to a manhole safety protection device on a wind turbine yaw platform. Background Technology

[0002] As the core equipment for new energy power generation, the stable operation of wind turbines is directly related to the efficiency of power supply. Among them, the yaw platform is the core component of wind turbines to achieve nacelle steering and accurate tracking of wind direction. In order to ensure the normal operation of the yaw platform, maintenance personnel need to regularly enter the interior through the manhole set on the yaw platform to carry out inspection and maintenance work. Therefore, the manhole safety protection device is a key structure to ensure the safe entry of maintenance personnel into the unit.

[0003] To meet the strength and durability requirements of wind turbines in complex outdoor environments, existing wind turbine yaw platform manhole protective doors are mostly made of iron and are generally of the flip-top type. Although iron can meet the strength requirements, it also results in a large weight of the protective door. Maintenance personnel have to overcome the weight of the door to flip it up or snap it down each time they open or close it. Especially after climbing the ladder to enter the platform, when physical strength has been exhausted, opening the protective door requires a lot of effort and is difficult to operate. Utility Model Content

[0004] The purpose of this utility model is to provide a safety protection device for manholes on the yaw platform of a wind turbine, which aims to solve the technical problem that the protective door is too heavy in the prior art, and the maintenance personnel have to overcome the weight of the door to flip it upward or buckle it downward every time they open and close it, which makes it time-consuming and laborious for the maintenance personnel to open the manhole protective door.

[0005] To achieve the above objectives, this utility model employs a manhole safety protection device on a wind turbine yaw platform, comprising a manhole frame, a first protective plate, and a second protective plate. The first protective plate and the second protective plate are symmetrically arranged on both sides of the manhole frame. The first protective plate and the second protective plate are respectively provided with a first guide groove and a second guide groove. Two sets of limiting components are symmetrically arranged inside the manhole frame. The two sets of limiting components are respectively disposed on the outer sides of the first protective plate and the second protective plate; It also includes a locking component, which is disposed within the first protective plate and is used to lock the first protective plate and the second protective plate.

[0006] The limiting component includes a side sleeve, which is slidably disposed on both sides of the first protective plate and fixedly connected to the manhole frame. A guide block that is slidably connected to the first guide groove is disposed inside the side sleeve.

[0007] A stabilizing block is provided on the side of the first guard plate away from the second guard plate.

[0008] The manhole frame is fixedly equipped with a climbing ladder on its inner side, a support platform is fixedly equipped on its outer side, and the inner wall of the tower is fixedly equipped on the outer side of the support platform.

[0009] Handles and warning signs are fixedly installed on the upper and lower surfaces of both the first and second guard plates.

[0010] The locking assembly includes an insertion rod, which is fixedly disposed on one side of the second guard plate that is attached to the first guard plate. The insertion rod has an inclined surface and is inserted into the first guard plate.

[0011] The first guard plate has two sets of trapezoidal limiting blocks that engage with the insertion rod. The two sets of trapezoidal limiting blocks are symmetrically arranged along the insertion rod. A connecting rod is provided on the side of the trapezoidal limiting block away from the insertion rod, and the connecting rod passes through the first guard plate. A spring is provided on the outside of the connecting rod, and a lifting buckle is fixedly provided at the other end of the connecting rod. The lifting buckle is located inside the handle on the side of the first guard plate.

[0012] The trapezoidal limiting block is provided with an L-shaped rod on one side adjacent to the connecting rod. The horizontal bar of the L-shaped rod is fixedly connected to the trapezoidal limiting block. The vertical bar surface of the L-shaped rod is provided with tooth grooves, and the tooth grooves of the L-shaped rod are engaged with a linkage gear.

[0013] Compared with the prior art, this utility model has the following advantages: 1. By using the lateral sliding opening and closing method of the first and second guard plates, there is no need to overcome the gravity flipping of the guard plates. With the constraint components composed of side sleeves and guide blocks, the guard plates can slide smoothly. Maintenance personnel only need to push the guard plates with the handle to open and close them, effectively saving the physical exertion of maintenance personnel.

[0014] 2. The locking component automatically locks the two guard plates when they are closed, effectively preventing accidental opening due to vibration or accidental contact, thus ensuring operational safety. To unlock, simply pull the buckle on the inside of the handle. With the cooperation of the internal structure of the locking component, both sides of the guard plate can be quickly unlocked. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a structural schematic diagram of a manhole safety protection device on a wind turbine yaw platform according to this utility model.

[0017] Figure 2 This is the utility model Figure 1 Enlarged view of the local structure at point A.

[0018] Figure 3 This is a partial structural schematic diagram of a manhole safety protection device on a wind turbine yaw platform according to this utility model.

[0019] Figure 4 This is a structural schematic diagram of the locking component of this utility model.

[0020] 101-Manhole frame, 102-First protective plate, 103-Second protective plate, 104-Side sleeve, 105-Guide block, 106-Stabilizing block, 107-Bearing platform, 108-Tower inner wall, 109-Handle, 110-Warning sign, 111-Insert rod, 112-Trapezoidal limiting block, 113-Connecting rod, 114-Spring, 115-Lifting buckle, 116-L-shaped rod, 117-Linkage gear, 118-Climbing ladder, 119-First guide groove, 120-Second guide groove. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figures 1-4 ,in Figure 1 This is a structural schematic diagram of a manhole safety protection device on a wind turbine yaw platform according to this utility model. Figure 2 This is the utility model Figure 1 Enlarged view of the local structure at point A. Figure 3 This is a partial structural schematic diagram of a manhole safety protection device on a wind turbine yaw platform according to this utility model. Figure 4 This is a structural schematic diagram of the locking component of this utility model.

[0023] In this embodiment, the first protective plate 102 and the second protective plate 103 are symmetrically arranged on both sides of the manhole frame 101. The first protective plate 102 and the second protective plate 103 are respectively provided with a first guide groove 119 and a second guide groove 120. Two sets of limiting components are symmetrically arranged inside the manhole frame 101. The two sets of limiting components are respectively arranged on the outside of the first protective plate 102 and the second protective plate 103. It also includes a locking component, which is arranged inside the first protective plate 102 and is used to lock the first protective plate 102 and the second protective plate 103. Pulling the first protective plate 102 and the second protective plate 103 to slide inside the manhole frame 101, the first protective plate 102 and the second protective plate 103 move laterally in opposite directions to realize the rapid opening of the manhole frame 101.

[0024] The limiting component includes a side sleeve 104, which is slidably disposed on both sides of the first guard plate 102 and fixedly connected to the manhole frame 101. A guide block 105 is disposed inside the side sleeve 104 and slidably connected to the first guide groove 119. The first guard plate 102 drives the first guide groove 119 to slide on the outside of the guide block 105, and the second guard plate 103 drives the second guide groove 120 to slide on the outside of the guide block 105, thereby ensuring the stability of the sliding opening and closing of the first guard plate 102 and the second guard plate 103.

[0025] Secondly, a stabilizing block 106 is provided on the side of the first guard plate 102 away from the second guard plate 103. The stabilizing block 106 prevents the first guard plate 102 or the second guard plate 103 from slipping out of the manhole frame 101 due to excessive sliding, and provides structural support stability for the guard plate when the first guard plate 102 and the second guard plate 103 are locked together.

[0026] Meanwhile, a climbing ladder 118 is fixedly installed on the inner side of the manhole frame 101, and a support platform 107 is fixedly installed on the outer side of the manhole frame 101. The inner wall of the tower 108 is fixedly installed on the outer side of the support platform 107. The climbing ladder 118 is used for maintenance personnel to climb from the lower platform to the yaw platform through the manhole frame 101. The support platform 107 is installed on the inner wall of the tower 108 and is used to fix and support the manhole frame 101.

[0027] In addition, handles 109 and warning signs 110 are fixedly provided on the upper and lower surfaces of the first guard plate 102 and the second guard plate 103. The inner side of the manhole frame 101 is provided with a groove that matches the handle 109 to help maintenance personnel hold the handle 109. The handle 109 makes it easy for maintenance personnel to open the first guard plate 102 and the second guard plate 103 from above or below. The warning sign 110 is used to strengthen safety operation reminders and avoid operational errors.

[0028] Secondly, the locking assembly includes an insertion rod 111, which is fixedly disposed on one side of the second guard plate 103 that is attached to the first guard plate 102. The insertion rod 111 has an inclined surface and is inserted into the first guard plate 102. When the first guard plate 102 and the second guard plate 103 are closed, the second guard plate 103 drives the insertion rod 111 to be inserted into the first guard plate 102.

[0029] Meanwhile, the first guard plate 102 is provided with two sets of trapezoidal limiting blocks 112 that engage with the insertion rod 111. The two sets of trapezoidal limiting blocks 112 are symmetrically arranged along the insertion rod 111. A connecting rod 113 is provided on the side of the trapezoidal limiting block 112 away from the insertion rod 111, and the connecting rod 113 passes through the first guard plate 102. A spring 114 is provided on the outside of the connecting rod 113, and a lifting buckle 115 is fixedly provided at the other end of the connecting rod 113. The lifting buckle 115 is located at the... On the inner side of the handle on the first guard plate 102, the insertion rod 111 pushes the inclined surface of the trapezoidal limiting block 112 through the inclined surface, thereby pushing the trapezoidal limiting block 112 to move outward. At the same time, the connecting rod 113 pushes the lifting buckle 115 to slide outward. The spring 114 is compressed. After the insertion rod 111 is inserted into place, the spring 114 pushes the trapezoidal limiting block 112 to engage with the insertion rod 111, thereby locking the first guard plate 102 and the second guard plate 103.

[0030] Additionally, an L-shaped rod 116 is provided on one side of the trapezoidal limiting block 112 adjacent to the connecting rod 113. The horizontal bar of the L-shaped rod 116 is fixedly connected to the trapezoidal limiting block 112. The vertical bar surface of the L-shaped rod 116 is provided with toothed grooves. A linkage gear 117 is engaged with the toothed grooves of the L-shaped rod 116. When it is necessary to unlock the first guard plate 102 and the second guard plate 103, the maintenance personnel can hold the handle 109 and move the lifting buckle 115 upward by using their fingers. 13 drives the trapezoidal limiting block 112 to move outward, and at the same time the trapezoidal limiting block 112 drives the L-shaped rod 116 to move upward. The tooth groove of the L-shaped rod 116 meshes with the linkage gear 117, causing the linkage gear 117 to rotate. The linkage gear 117 drives the L-shaped rod 116 on the other side to move downward, thereby simultaneously achieving the locking of the two trapezoidal limiting blocks 112 to the insertion rod 111. The maintenance personnel can then pull the first guard plate 102 and the second guard plate 103 to both sides.

[0031] Using a manhole safety protection device on a wind turbine yaw platform according to this embodiment, by setting up the manhole frame 101, the telescopic first guard plate 102, and the second guard plate 103, in specific use, maintenance personnel reach the bottom of the manhole frame 101 on the yaw platform via the climbing ladder 118, and simultaneously grasp the handles 109 of the first guard plate 102 and the second guard plate 103. By using their fingers to drive the lifting buckle 115 upward, the connecting rod 113 drives the trapezoidal limiting block 112 to move outward, and at the same time, the trapezoidal limiting block 112 drives the L-shaped rod 116 to move upward. The tooth groove of the L-shaped rod 116 meshes with the linkage gear 117, causing the linkage gear 117 to rotate. The linkage gear 117 drives the L-shaped rod 116 on the other side to move downward, thereby simultaneously achieving contact between the two trapezoidal limiting blocks 112 and the manhole frame 101. Locking the insertion rod 111 allows maintenance personnel to pull the first guard plate 102 and the second guard plate 103 to both sides. The first guard plate 102 causes the first guide groove 119 to slide on the outside of the guide block 105, and the second guard plate 103 causes the second guide groove 120 to slide on the outside of the guide block 105. This opens the guard plate of the manhole frame 101, allowing access to the bearing platform 107 of the yaw platform. After entering, maintenance personnel can use the handle 109 to pull the first guard plate 102 and the second guard plate 103. The second guard plate 103 causes the insertion rod 111 to be inserted into the first guard plate 102. The trapezoidal limiting block 112 restricts the insertion rod 111, thus achieving quick locking of the first guard plate 102 and the second guard plate 103. This allows for convenient and labor-saving opening of the yaw platform manhole protection door, effectively conserving the physical strength of maintenance personnel.

[0032] The above-disclosed embodiments are merely preferred embodiments of a manhole safety protection device on a wind turbine yaw platform according to the present invention. Of course, they should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A safety protection device for a manhole on a wind turbine yaw platform, comprising a manhole frame (101), a first protective plate (102), and a second protective plate (103), characterized in that, The first protective plate (102) and the second protective plate (103) are symmetrically arranged on both sides of the manhole frame (101). The first protective plate (102) and the second protective plate (103) are respectively provided with a first guide groove (119) and a second guide groove (120). Two sets of limiting components are symmetrically arranged inside the manhole frame (101). The two sets of limiting components are respectively disposed on the outer sides of the first protective plate (102) and the second protective plate (103); It also includes a locking component disposed within the first guard plate (102) for locking the first guard plate (102) and the second guard plate (103).

2. The safety protection device for the manhole on the yaw platform of a wind turbine as described in claim 1, characterized in that, The limiting component includes a side sleeve (104), which is slidably disposed on both sides of the first guard plate (102) and fixedly connected to the manhole frame (101). A guide block (105) is disposed inside the side sleeve (104) and is slidably connected to the first guide groove (119).

3. The safety protection device for the manhole on the yaw platform of a wind turbine as described in claim 2, characterized in that, A stabilizing block (106) is provided on the side of the first guard plate (102) away from the second guard plate (103).

4. A safety protection device for manholes on a wind turbine yaw platform as described in claim 3, characterized in that, A climbing ladder (118) is fixedly installed on the inner side of the manhole frame (101), a bearing platform (107) is fixedly installed on the outer side of the manhole frame (101), and a tower inner wall (108) is fixedly installed on the outer side of the bearing platform (107).

5. A safety protection device for manholes on a wind turbine yaw platform as described in claim 4, characterized in that, Handles (109) and warning signs (110) are fixedly installed on the upper and lower surfaces of the first guard plate (102) and the second guard plate (103).

6. A safety protection device for manholes on a wind turbine yaw platform as described in claim 5, characterized in that, The locking assembly includes an insertion rod (111), which is fixedly disposed on the second guard plate (103) and attached to one side of the first guard plate (102). The insertion rod (111) has an inclined surface and is inserted into the first guard plate (102).

7. A safety protection device for manholes on a wind turbine yaw platform as described in claim 6, characterized in that, The first guard plate (102) is provided with two sets of trapezoidal limiting blocks (112) that engage with the insertion rod (111). The two sets of trapezoidal limiting blocks (112) are symmetrically arranged along the insertion rod (111). A connecting rod (113) is provided on the side of the trapezoidal limiting block (112) away from the insertion rod (111), and the connecting rod (113) passes through the first guard plate (102). A spring (114) is provided on the outside of the connecting rod (113). A lifting buckle (115) is fixedly provided on the other end of the connecting rod (113), and the lifting buckle (115) is located inside the handle of the first guard plate (102).

8. A safety protection device for manholes on a wind turbine yaw platform as described in claim 7, characterized in that, The trapezoidal limiting block (112) is provided with an L-shaped rod (116) on one side adjacent to the connecting rod (113). The horizontal rod of the L-shaped rod (116) is fixedly connected to the trapezoidal limiting block (112). The vertical rod surface of the L-shaped rod (116) is provided with a toothed groove. The toothed groove of the L-shaped rod (116) is engaged with a linkage gear (117).

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