Wellhead protection device for main shaft lifting

Abstract

The utility model discloses a wellhead protection device for main shaft lifting, which comprises a bottom plate, support rods are fixedly connected to the top of the bottom plate close to four corners, a top plate is fixedly mounted between the top ends of the support rods, a side baffle is fixedly sleeved between the outer surfaces of every two support rods, and the top plate is fixedly mounted on the top of the bottom plate. The utility model relates to a well mouth protection device, which comprises three side baffles, hollow pipes are fixedly connected to the edges, close to the two sides, of the outer surfaces of one sides of the three side baffles, and first buffer springs are fixedly welded to the bottom surfaces of the interiors of the hollow pipes. The problems that in the prior art, an existing protection device is prone to falling off at a well mouth after being seriously impacted, the collision heights of adults and children are different, however, the collision of an existing protection device to objects with different heights is limited, and the protection effect of the device is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of wellhead protection devices, specifically a wellhead protection device for main well hoisting. Background Technology

[0002] Early wellhead protection devices were relatively simple and had limited functions. For example, some simple wellhead fences or covers were mainly used to prevent personnel from accidentally falling into the well, but their protective effect against other risks, such as preventing objects from falling into the well from above and protecting wellhead equipment from the impact of severe weather, was limited. Traditional wellhead protection devices may not have fully considered the special needs and complex operating conditions of different wellheads in their design. For example, in some high-temperature, high-pressure oil and gas wellheads, ordinary protective materials may not be able to withstand the harsh working environment and are prone to deformation and damage, thereby reducing their protective performance. In the fields of oil and gas extraction and mining, the wellhead is a critical component.

[0003] When using wellhead protection, traditional wellhead protection equipment generally uses simple baffles for protection. After a severe impact, the baffles are very easy to fall off the wellhead. The impact height of adults and children is different. However, the existing protective devices have limited protection against impacts from objects of different heights, thus reducing the protective effect of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a wellhead protection device for main shaft hoisting, in order to solve the problem mentioned in the background art that the existing wellhead protection equipment generally uses simple baffles for protection, which are very easy to fall at the wellhead after being subjected to severe impact. The existing protective devices have limited protection against impacts from objects of different heights, which reduces the protective effect of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wellhead protection device for main shaft hoisting, comprising a base plate, a wellhead through hole near the center of the top of the base plate, support rods fixedly connected to the top of the base plate near the four corners, a top plate fixedly installed between the top ends of the support rods, a side baffle slidably sleeved between the outer surfaces of every two support rods, a hollow tube fixedly connected to the outer surface of one side of the side baffle near the two edges, a first buffer spring fixedly welded to the bottom surface of the hollow tube, a limiting baffle fixedly connected to one end of the first buffer spring, and the limiting baffle slidably connected inside the hollow tube, a moving rod fixedly connected to one side of the limiting baffle, a protective baffle fixedly connected between the ends of every two moving rods, a second buffer spring fixedly sleeved on the outer surface of the moving rod, and threaded rods threadedly connected to the two edges near the rear side of the top of the side baffle, a first rotating gear fixedly sleeved on the outer surface of the threaded rod near the bottom edge.

[0006] In a preferred embodiment, a fixing plate is fixedly connected to the rear outer surface of the base plate, a motor is fixedly installed on the top of the fixing plate, a rotating shaft is fixedly welded to the output end of the motor, a second rotating gear is fixedly sleeved on the top end of the rotating shaft, and a transmission belt is sleeved between the outer surfaces of the second rotating gear and the first rotating gear.

[0007] In a preferred embodiment, a first abutment block is fixedly connected to one outer surface of each of the three side baffles near the center.

[0008] In a preferred embodiment, a second abutment block is fixedly connected to the inner outer surface of each of the three protective baffles near the center.

[0009] In a preferred embodiment, a third buffer spring is fixedly welded between the outer surfaces of the opposite sides of each of the first and second contact blocks.

[0010] In a preferred embodiment, the inner surface of one side of each of the two side baffles is rotatably connected to a protective door via a hinge. Two fixing blocks are fixedly connected to the edge of the front outer surface of each of the two protective doors near one side. A pull rod is fixedly connected between the front outer surfaces of each pair of fixing blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, through the fixing of the base plate, facilitates the alignment of the wellhead through hole with the wellhead, enabling the device to operate normally. Subsequently, the fixing of the support rod facilitates the fixing of the top plate, which in turn facilitates the fixing of the side baffles, thus protecting the interior of the wellhead. Further protection of the exterior of the wellhead is achieved through protective baffles. When subjected to force, the protective baffles move relative to the wellhead, pressing against the moving rod. The moving rod then causes the limiting baffle to slide inside the hollow tube. Under the elastic action of the first and second buffer springs, the device effectively buffers the impact force. Simultaneously, the protective baffle causes the second contact block to compress, which in turn causes the third buffer spring to compress the first contact block. The reverse force of the third buffer spring facilitates effective buffering, improving the protective effect of the device. Then, by starting the motor, the motor drives the rotating shaft to rotate, which in turn drives the second rotating gear to rotate. Through the action of the transmission belt, the first rotating gear rotates, which drives the threaded rod to rotate. This allows the side baffle to be adjusted up and down, enabling the side baffle to provide protection at different heights, thereby improving the protective effect of the device. Attached Figure Description

[0013] Figure 1 This utility model provides a front-view three-dimensional structural schematic diagram of a wellhead protection device for main well hoisting;

[0014] Figure 2 This utility model provides a side-view three-dimensional structural diagram of a wellhead protection device for main well hoisting;

[0015] Figure 3 A top-view three-dimensional structural diagram of a wellhead protection device for main well hoisting is provided for this utility model;

[0016] Figure 4 This utility model proposes a wellhead protection device for main shaft hoisting. Figure 1 A schematic diagram of the three-dimensional structure at point A in the middle.

[0017] Reference numerals: 1. Base plate; 2. Wellhead through hole; 3. Support rod; 4. Top plate; 5. Side baffle; 6. Hollow tube; 7. First buffer spring; 8. Restriction baffle; 9. Moving rod; 10. Protective baffle; 11. Second buffer spring; 12. First abutment block; 13. Third buffer spring; 14. Second abutment block; 15. Protective door; 16. Fixing block; 17. Pull rod; 18. Threaded rod; 19. First rotating gear; 20. Fixing plate; 21. Motor; 22. Rotating shaft; 23. Second rotating gear; 24. Transmission belt. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a wellhead protection device for main shaft hoisting, including a base plate 1, a wellhead through hole 2 opened near the center of the top of the base plate 1, support rods 3 fixedly connected to the top of the base plate 1 near the four corners, a top plate 4 fixedly installed between the top ends of the support rods 3, a side baffle 5 slidably sleeved between the outer surfaces of every two support rods 3, a hollow tube 6 fixedly connected to the outer surface of one side of the side baffle 5 near the two side edges, a first buffer spring 7 fixedly welded to the bottom surface of the hollow tube 6, a limiting baffle 8 fixedly connected to one end of the first buffer spring 7, and the limiting baffle 8 slidably connected inside the hollow tube 6, a moving rod 9 fixedly connected to one side of the limiting baffle 8, a protective baffle 10 fixedly connected between the ends of every two moving rods 9, a second buffer spring 11 fixedly sleeved on the outer surface of the moving rod 9, and a threaded rod 18 threadedly connected to the two side edges of the top of the side baffle 5 near the rear side, and a first rotating gear 19 fixedly sleeved on the outer edge of the threaded rod 18 near the bottom end.

[0021] A fixing plate 20 is fixedly connected to the rear outer surface of the base plate 1. A motor 21 is fixedly installed on the top of the fixing plate 20. A rotating shaft 22 is fixedly welded to the output end of the motor 21. A second rotating gear 23 is fixedly sleeved on the top end of the rotating shaft 22. A transmission belt 24 is sleeved between the outer surface of the second rotating gear 23 and the first rotating gear 19.

[0022] Each of the three side baffles 5 has a first abutment block 12 fixedly connected to one outer surface near the center.

[0023] The inner outer surfaces of the three protective baffles 10 are all fixedly connected with second abutment blocks 14 near the center.

[0024] A third buffer spring 13 is fixedly welded between the outer surfaces of the opposite sides of each first contact block 12 and second contact block 14.

[0025] The inner surface of each of the two side baffles 5 is hinged to a protective door 15. Two fixing blocks 16 are fixedly connected to the edge of the front outer surface of each of the two protective doors 15. A pull rod 17 is fixedly connected between the front outer surfaces of each pair of fixing blocks 16.

[0026] Working Principle: When the device is in use, the base plate 1 is fixed, making it easy to align the wellhead through hole 2 with the wellhead, facilitating normal operation. The support rod 3 then fixes the top plate 4, allowing for the easy installation of the side baffles 5, thus protecting the inside of the wellhead. Further protection is provided by the protective baffle 10. When the protective baffle 10 is subjected to force, it moves relative to the wellhead, pressing against the moving rod 9. The moving rod 9 then causes the limiting baffle 8 to slide inside the hollow tube 6. Under the elastic action of the first buffer spring 7 and the second buffer spring 11, the device effectively buffers the impact force. Simultaneously, the protective baffle 10 drives the second contact block 14 to compress, which in turn drives the third buffer spring 13 to compress the first contact block 12. The reverse force of the third buffer spring 13 facilitates effective buffering, improving the protective effect of the device. Then, by starting the motor 21, the motor 21 drives the rotating shaft 22 to rotate, which in turn drives the second rotating gear 23 to rotate. Under the action of the transmission belt 24, the first rotating gear 19 rotates, which drives the threaded rod 18 to rotate. This allows the side baffle 5 to be adjusted up and down, enabling the side baffle 5 to provide protection at different heights, thereby improving the protective effect of the device.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wellhead protection device for main shaft hoisting, comprising a base plate (1), characterized in that: A wellhead through hole (2) is provided near the center of the top of the base plate (1). Support rods (3) are fixedly connected to the top of the base plate (1) near the four corners. A top plate (4) is fixedly installed between the top ends of the support rods (3). A side baffle (5) is slidably sleeved between the outer surfaces of every two support rods (3). A hollow tube (6) is fixedly connected to the outer surface of one side of the side baffle (5) near the edges on both sides. A first buffer spring (7) is fixedly welded to the bottom surface of the hollow tube (6). One end of the first buffer spring (7) is fixedly connected to... A limiting baffle (8) is connected and is slidably connected inside the hollow tube (6). A moving rod (9) is fixedly connected to one side of the limiting baffle (8). A protective baffle (10) is fixedly connected between one end of every two moving rods (9). A second buffer spring (11) is fixedly sleeved on the outer surface of the moving rod (9). A threaded rod (18) is threaded through the top of the side baffle (5) near the rear side edges. A first rotating gear (19) is fixedly sleeved on the outer surface of the threaded rod (18) near the bottom edge.

2. The wellhead protection device for main shaft hoisting according to claim 1, characterized in that: A fixing plate (20) is fixedly connected to the rear outer surface of the base plate (1). A motor (21) is fixedly installed on the top of the fixing plate (20). A rotating shaft (22) is fixedly welded to the output end of the motor (21). A second rotating gear (23) is fixedly sleeved on the top end of the rotating shaft (22). A transmission belt (24) is sleeved between the outer surfaces of the second rotating gear (23) and the first rotating gear (19).

3. A wellhead protection device for main shaft hoisting according to claim 1, characterized in that: Each of the three side baffles (5) has a first abutment block (12) fixedly connected to one outer surface near the center.

4. A wellhead protection device for main shaft hoisting according to claim 3, characterized in that: Each of the three protective baffles (10) has a second abutment block (14) fixedly connected to its inner outer surface near the center.

5. A wellhead protection device for main shaft hoisting according to claim 4, characterized in that: A third buffer spring (13) is fixedly welded between the outer surfaces of the opposite sides of each of the first contact block (12) and the second contact block (14).

6. A wellhead protection device for main shaft hoisting according to claim 1, characterized in that: One of the inner walls of each of the two side baffles (5) is connected to a protective door (15) by a hinge. Two fixing blocks (16) are fixedly connected to the edge of the front outer surface of each of the two protective doors (15) near one side. A pull rod (17) is fixedly connected between the front outer surfaces of each pair of fixing blocks (16).

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