Adaptive wellhead safety anti-falling device

Abstract

The utility model discloses a self -adaptation well mouth safety anti -fall device, especially in well mouth anti -fall technical field, including the chassis, the upper end middle part fixed connection of chassis has the vertical rod, the top fixed connection of vertical rod has the alarm lamp, and the outside of chassis is opened with four movable slots in the circular array, and the rotatory head is rotatably connected in each movable slot, and one end of rotatory head is passed out movable slot and is fixedly connected with fixed cylinder, and the telescopic link is movably arranged in fixed cylinder, and the one end away from the chassis of telescopic link is passed out fixed cylinder and is fixedly connected with L shape extrusion board, and is provided with push extrusion mechanism on each fixed cylinder. The utility model discloses through setting up four foldable and together fixed cylinder, correspondingly sets up four groups of push extrusion mechanism, and pushes out the telescopic link in fixed cylinder outward, and four L shape extrusion boards support extrusion well mouth inner wall, and the installation of self -adaptation different size well mouth is stable, effectively avoids the occurrence of device falling, and more stablely reminds the crowd of attention safety, avoids falling into the well.

Description

Technical Field

[0001] This utility model relates to the field of wellhead fall prevention technology, and more specifically, to an adaptive wellhead safety fall prevention device. Background Technology

[0002] In scenarios such as municipal pipelines, mines, and power manholes, when manhole covers are displaced or damaged due to vehicle traffic, material aging, or illegal theft, they can create hidden fall-in risks. These manholes require maintenance or repair, and because the processing time is relatively long, the manhole opening remains open for extended periods. This can easily lead to accidents where people accidentally step into the opening due to inattention, seriously threatening the safety of pedestrians and workers.

[0003] Referring to Chinese Patent Publication No. CN221402912U, an adaptive safety fall-prevention warning device for wellheads of different diameters is disclosed, including a rotating upright and a support frame disposed at the bottom end of the rotating upright. The rotating upright includes a threaded upright and a bottom bearing rotatably disposed at the bottom end of the threaded upright. The support frame includes several support plates disposed outside the bottom bearing. A support rod is disposed on one side of the support plate through a first rotating connector. A support bent rod is disposed at the end of the support rod away from the support plate. An adjustment component is also disposed between the threaded upright and several support rods. The adjustment component is used to adjust the support bent rod. When not in use, the entire fall-prevention warning device can be rotated and folded up, which has a certain degree of portability and is convenient for maintenance personnel to carry for a long time. By rotating to change the opening size of the support bent rod, it can be adapted to wellheads of different diameters and achieve stable anchoring at the wellhead, ensuring that even if a pedestrian ignores the warning and accidentally enters, the stability of the fall-prevention warning device is sufficient to prevent the pedestrian from falling into the well.

[0004] The device uses the rotation of the threaded upright to force the limiting nut to move downwards, causing the expansion rod and the support rod to shift. This results in the support bend gradually expanding, contacting the inner wall of the well opening, and the anti-slip pins further abutting against the inner wall. Finally, the limiting nut is locked in place by a pin, thus fixing the device to the well opening. However, as is common sense, the inner wall of the well opening is generally made of metal, which is hard and has a smooth surface. The above solution, which uses a simple support structure to abut the support bend against the inner wall of the well opening and adds anti-slip pins to increase grip, is actually unstable and prone to slippage and falling, especially in rainy or windy weather, or if the device is accidentally hit by an external object. If the support is insufficient or the device tilts, the entire device can easily fall into the well, causing unnecessary trouble.

[0005] In summary, in order to remind pedestrians to avoid accidentally falling into concealed manholes, the aforementioned manhole safety anti-fall device is used to provide warnings at the manhole opening. However, it is necessary to solve the problem of the device slipping and falling due to insufficient support at the manhole opening, so that the device can stay stably on the manhole opening and remind passers-by to avoid falling. Utility Model Content

[0006] The problem to be solved by the adaptive wellhead safety anti-fall device provided by this utility model is: in order to remind pedestrians to avoid accidentally falling into a hidden wellhead, the above-mentioned wellhead safety anti-fall device is used to provide a warning at the wellhead, and it is necessary to solve the problem that the device may slide down and fall at the wellhead due to insufficient support.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adaptive wellhead safety anti-fall device, comprising a chassis, an upright rod fixedly connected to the upper middle part of the chassis, an alarm light fixedly connected to the top of the upright rod, four movable slots arranged in a circular array on the outer side of the chassis, a rotating head rotatably connected in each movable slot, one end of the rotating head passing through the movable slot and fixedly connected to a fixed cylinder, a telescopic rod movably disposed inside the fixed cylinder, the end of the telescopic rod away from the chassis passing through the fixed cylinder and fixedly connected to an L-shaped extrusion plate, and a pushing and extrusion mechanism provided on each fixed cylinder, the pushing and extrusion mechanism being used to control the length of the telescopic rod extending outward from the fixed cylinder.

[0008] In a preferred embodiment, the push-press mechanism includes an actuating component and a driving component, wherein the actuating component is used to directly push the telescopic rod to move, and the driving component is used to drive the actuating component to work.

[0009] In a preferred embodiment, the actuating component includes a sliding plate fixedly connected to the upper end of the telescopic rod, the upper end of the sliding plate passing through a slot and fixedly connected to a sliding sleeve.

[0010] In a preferred embodiment, the drive assembly includes two fixed plates fixedly connected to both sides of the upper end of the fixed cylinder, a threaded rod rotatably connected between the two fixed plates, a sliding sleeve threadedly connected to the outside of the threaded rod, and a rotating wheel rotatably connected to the surface of the fixed plate near the L-shaped extrusion plate, the rotating wheel being fixedly connected to the threaded rod via a shaft.

[0011] In a preferred embodiment, a rotating ring is movably connected to the bottom outer side of the upright pole, and four connecting plates are fixedly connected in a circular array to the outer side of the rotating ring. A limit plate is fixedly connected to the end of each connecting plate away from the upright pole.

[0012] In a preferred embodiment, a positioning ring is fixedly connected to the outer side of the upright pole, and the positioning ring is fitted against the upper surface of the rotating ring.

[0013] In a preferred embodiment, a fixed plate is provided at the bottom of the chassis, a threaded post is fixedly connected to the upper end of the fixed plate, and a threaded hole adapted to the threaded post is provided at the bottom of the chassis.

[0014] In a preferred embodiment, an anti-slip extrusion pad is fixedly connected to the inner side of the L-shaped extrusion plate, a reflective sticker is attached to the outer side of the upright rod, and a reflective strip is attached to the upper outer side of each L-shaped extrusion plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a chassis with four rotatable heads for connecting four foldable fixed cylinders, facilitating storage and portability. A pushing and squeezing mechanism extends the telescopic rods of the fixed cylinders outwards, while four parallel L-shaped squeezing plates support and squeeze the inner wall of the well opening. This adapts to different well opening sizes, providing strong and stable support. The L-shaped squeezing plates also secure the upper outer wall of the well opening, effectively preventing the device from falling into the well. The entire device stands stably on the well opening, alerting passersby to safety and preventing them from falling in. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a partial disassembly diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the distribution structure of the pushing and squeezing mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the chassis of this utility model. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the chassis of this utility model. Figure 2 .

[0022] Figure 6 This is a three-dimensional structural diagram of the fixed disk of this utility model.

[0023] The attached diagram is labeled as follows: 1. Chassis; 2. Upright pole; 3. Warning light; 4. Movable groove; 5. Rotating head; 6. Fixed cylinder; 7. Telescopic rod; 8. L-shaped extrusion plate; 901. Sliding plate; 902. Sliding sleeve; 903. Fixed plate; 904. Threaded rod; 905. Rotating wheel; 10. Through groove; 11. Rotating ring; 12. Connecting plate; 13. Limiting plate; 14. Positioning ring; 15. Fixed disc; 16. Threaded column; 17. Threaded hole; 18. Anti-slip extrusion pad; 19. Reflective ring; 20. Reflective strip. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Refer to the instruction manual appendix Figures 1 to 6 An adaptive wellhead safety anti-fall device includes a chassis 1. A vertical rod 2 is fixedly connected to the upper middle part of the chassis 1. An alarm light 3 is fixedly connected to the top of the vertical rod 2. Four movable slots 4 are arranged in a circular array on the outer side of the chassis 1. A rotating head 5 is rotatably connected in each movable slot 4. One end of the rotating head 5 passes through the movable slot 4 and is fixedly connected to a fixed cylinder 6. A telescopic rod 7 is movably arranged in the fixed cylinder 6. The end of the telescopic rod 7 away from the chassis 1 passes through the fixed cylinder 6 and is fixedly connected to an L-shaped extrusion plate 8. A pushing and extrusion mechanism is provided on each fixed cylinder 6. The pushing and extrusion mechanism is used to control the length of the telescopic rod 7 extending outward from the fixed cylinder 6.

[0026] It should be noted that during use, the four fixed cylinders 6 should be adjusted to be horizontal and then spread out. Try to control the length of the four telescopic rods 7 to be consistent. Scale lines can be made on the outer surface of the four telescopic rods 7 for timely judgment. The side of the L-shaped extrusion plate 8 that contacts the well wall should be made slightly curved to better fit the extrusion well wall.

[0027] Refer to the instruction manual appendix Figure 3 The pushing and squeezing mechanism includes an execution component and a drive component. The execution component is used to directly push the telescopic rod 7 to move, and the drive component is used to drive the execution component to work.

[0028] It should be noted that the pushing and squeezing mechanism is divided into two parts. The output end of the actuator is directly connected to the telescopic rod 7, which is used to directly push the telescopic rod 7 to extend outward or retract into the fixed cylinder 6. The drive component serves as the power source for the actuator, which is used to drive its operation and at the same time fixes the position of the telescopic rod 7.

[0029] Refer to the instruction manual appendix Figure 3 The execution component includes a sliding plate 901 fixedly connected to the upper end of the telescopic rod 7. The upper end of the sliding plate 901 passes through the through groove 10 and is fixedly connected to a sliding sleeve 902.

[0030] It should be noted that pushing the sliding sleeve 902 causes the sliding plate 901 to move, and the sliding plate 901 in turn causes the telescopic rod 7 to move.

[0031] Refer to the instruction manual appendix Figure 3The drive assembly includes two fixed plates 903 fixedly connected to both sides of the upper end of the fixed cylinder 6. A threaded rod 904 is rotatably connected between the two fixed plates 903. A sliding sleeve 902 is threadedly connected to the outside of the threaded rod 904. A rotating wheel 905 is rotatably connected to the surface of the fixed plate 903 near the L-shaped extrusion plate 8. The rotating wheel 905 is fixedly connected to the threaded rod 904 through a shaft.

[0032] It should be noted that rotating the wheel 905 causes the threaded rod 904 to rotate, and the threaded rod 904 continues to drive the sliding sleeve 902 to move.

[0033] Refer to the instruction manual appendix Figure 2 A rotating ring 11 is movably connected to the bottom outer side of the upright pole 2. Four connecting plates 12 are fixedly connected to the outer side of the rotating ring 11 in a circular array. A limit plate 13 is fixedly connected to the end of each connecting plate 12 away from the upright pole 2.

[0034] It should be noted that after the four fixed cylinders 6 are horizontally spread out, rotating the rotating ring 11 drives the four connecting plates 12 to rotate. The connecting plates 12 drive the limiting plate 13 to rotate at a certain angle, thereby abutting against the upper side of the corresponding rotating head 5 to prevent it from rotating again and to provide stability for the fixed cylinders 6 in a horizontal state.

[0035] Refer to the instruction manual appendix Figure 2 A positioning ring 14 is fixedly connected to the outside of the upright rod 2, and the positioning ring 14 is fitted to the upper surface of the rotating ring 11.

[0036] It should be noted that the positioning ring 14 is used to limit the rotating ring 11 and prevent it from jumping up and down.

[0037] Refer to the instruction manual appendix Figures 4 to 6 The bottom of the chassis 1 is provided with a fixed plate 15, and the upper end of the fixed plate 15 is fixedly connected with a threaded post 16. The bottom of the chassis 1 is provided with a threaded hole 17 adapted to the threaded post 16.

[0038] It should be noted that by connecting the threaded post 16 into the threaded hole 17, the fixing plate 15 is fixed to the bottom of the base plate 1, which can abut against the lower side of the corresponding rotating head 5 to prevent it from rotating again and provide stability for the fixing cylinder 6 in a horizontal state.

[0039] Refer to the instruction manual appendix Figure 1 An anti-slip extrusion pad 18 is fixedly connected to the inner side of the L-shaped extrusion plate 8, a reflective sticker ring 19 is pasted on the outer side of the upright rod 2, and a reflective sticker strip 20 is pasted on the upper outer side of each L-shaped extrusion plate 8.

[0040] It should be noted that the anti-slip extrusion pad 18 can increase the extrusion stability between the L-shaped extrusion plate 8 and the well wall, preventing slippage. The reflective ring 19 and reflective strip 20 can reflect light at night to remind people around the location of the well opening.

[0041] Working principle: First, roughly determine the diameter of the wellhead. Then, horizontally unfold the four folded and retracted fixed cylinders 6 on the base plate 1 using the rotating head 5. Rotating the rotating ring 11 drives the four connecting plates 12 to rotate. The connecting plates 12 drive the limiting plate 13 to rotate a certain angle above the movable groove 4, thus abutting against the upper side of the corresponding rotating head 5. Next, connect the threaded column 16 into the threaded hole 17, thereby fixing the fixed plate 15 to the bottom of the base plate 1, abutting against the lower side of the corresponding rotating head 5 to prevent further rotation and provide stability for the fixed cylinders 6 in a horizontal state. Then, each set of pushing extruders is used... The rotating wheel 905 drives the threaded rod 904 to rotate, and the threaded rod 904 continues to drive the sliding sleeve 902 to move. The sliding sleeve 902 drives the sliding plate 901 to move, and the sliding plate 901 then drives the telescopic rod 7 to extend a certain length to the outside of the fixed cylinder 6. The four parallel L-shaped extrusion plates 8 support the inner wall of the extrusion well and are adaptively installed at the well opening position to effectively prevent the device from falling into the well. The alarm light 3 on the top of the upright rod 2, together with the design of reflective rings 19 and reflective strips 20 at various locations, reminds passers-by to pay attention to safety and avoid falling into the well.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An adaptive wellhead safety anti-fall device, characterized in that: Includes a chassis (1), with an upright rod (2) fixedly connected to the upper middle part of the chassis (1), and an alarm light (3) fixedly connected to the top of the upright rod (2). Four movable slots (4) are arranged in a circular array on the outer side of the chassis (1). A rotating head (5) is rotatably connected in each movable slot (4). One end of the rotating head (5) passes through the movable slot (4) and is fixedly connected to a fixed cylinder (6). A telescopic rod (7) is movably arranged in the fixed cylinder (6). The end of the telescopic rod (7) away from the chassis (1) passes through the fixed cylinder (6) and is fixedly connected to an L-shaped extrusion plate (8). A pushing and extrusion mechanism is provided on each fixed cylinder (6). The pushing and extrusion mechanism is used to control the length of the telescopic rod (7) extending outward from the fixed cylinder (6).

2. The adaptive wellhead safety anti-fall device according to claim 1, characterized in that: The push-press mechanism includes an actuation component and a drive component. The actuation component is used to directly push the telescopic rod (7) to move, and the drive component is used to drive the actuation component to work.

3. The adaptive wellhead safety anti-fall device according to claim 1, characterized in that: The actuating component includes a sliding plate (901) fixedly connected to the upper end of the telescopic rod (7), the upper end of the sliding plate (901) passing through the through groove (10) and fixedly connected to a sliding sleeve (902).

4. The adaptive wellhead safety anti-fall device according to claim 3, characterized in that: The drive assembly includes two fixed plates (903) fixedly connected to both sides of the upper end of the fixed cylinder (6), a threaded rod (904) rotatably connected between the two fixed plates (903), a sliding sleeve (902) threadedly connected to the outside of the threaded rod (904), and a rotating wheel (905) rotatably connected to the surface of the fixed plate (903) near the L-shaped extrusion plate (8), and the rotating wheel (905) is fixedly connected to the threaded rod (904) through a shaft.

5. The adaptive wellhead safety anti-fall device according to claim 1, characterized in that: A rotating ring (11) is movably connected to the bottom outer side of the upright pole (2). Four connecting plates (12) are fixedly connected to the outer side of the rotating ring (11) in a circular array. A limit plate (13) is fixedly connected to the end of each connecting plate (12) away from the upright pole (2).

6. The adaptive wellhead safety anti-fall device according to claim 5, characterized in that: A positioning ring (14) is fixedly connected to the outside of the upright pole (2), and the positioning ring (14) is fitted to the upper surface of the rotating ring (11).

7. The adaptive wellhead safety anti-fall device according to claim 1, characterized in that: The bottom of the chassis (1) is provided with a fixed plate (15), and the upper end of the fixed plate (15) is fixedly connected with a threaded post (16). The bottom of the chassis (1) is provided with a threaded hole (17) adapted to the threaded post (16).

8. The adaptive wellhead safety anti-fall device according to claim 1, characterized in that: The inner side of the L-shaped extrusion plate (8) is fixedly connected with an anti-slip extrusion pad (18), the outer side of the upright rod (2) is pasted with a reflective sticker ring (19), and the upper outer side of each L-shaped extrusion plate (8) is pasted with a reflective sticker strip (20).

Images