Improved underground maintenance device

Abstract

An improved underground overhauling device comprises a truck, a container and a suspended working platform, the container is detachably connected to the truck, a suspension arm driving device is fixedly arranged in the container, the power output end of the suspension arm driving device is connected with a transverse moving suspension arm, and a suspended working platform winch is fixedly arranged below the suspension arm driving device in the container. An output rope on the working ship winch is a working rope, a safety rope winch is arranged at the end of the transverse moving suspension arm, an output rope of the safety rope winch is a safety rope, and a rope breaking protection device is arranged on the working ship and comprises a working rope connector and a safety rope connector. The working rope bypasses the first pulley and the second pulley and then penetrates through the working rope connector to be connected with the suspended working platform, the safety rope penetrates through the safety rope connector to extend downwards, and a depended wheel is arranged on the side face, facing the truck head, of the suspended working platform. When the working rope is broken, the pressure of the steel wire rope on the swing arm disappears, the torsion spring enables the swing arm to rotate anticlockwise, the rope locking mechanism is triggered to clamp the safety rope, a suspended working platform is prevented from falling, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to downhole equipment maintenance technology, and especially to an improved downhole maintenance device. Background Technology

[0002] During the maintenance of downhole equipment, existing methods require the use of multiple devices such as lifting devices, hooks, and winches. These devices need to be installed and operated separately, requiring significant manpower and time, resulting in complex operations, low efficiency, and safety hazards. Patent CN221141137U discloses an downhole maintenance device that integrates a traveling mechanism, winch, and pontoon into one unit, improving maintenance efficiency. However, it still has the following drawbacks: 1. If the wire rope breaks, the pontoon will fall directly, posing a significant safety hazard. 2. The winch and other structures are directly exposed, resulting in poor waterproofing and windproofing. Utility Model Content

[0003] The purpose of this utility model is to provide an improved downhole maintenance device, which solves the technical problems in the prior art where, if the wire rope breaks, the gondola falls directly, posing a safety hazard, and has poor waterproof and windproof performance.

[0004] This utility model discloses an improved downhole maintenance device, comprising a truck, a container, and a gondola. The container is detachably connected to the truck. A boom drive device is fixedly installed inside the container, and the power output end of the boom drive device is connected to a lateral moving boom. A gondola winch is fixedly installed inside the container below the boom drive device. A first pulley is installed above the gondola winch inside the container, and a second pulley is installed at the end of the lateral moving boom. The output rope of the gondola winch is a working rope, and a safety rope winch is installed at the end of the lateral moving boom. The output rope of the safety rope winch is a safety rope. A rope breakage protection device is installed on the gondola, which includes a working rope interface and a safety rope interface. The working rope passes over the first pulley and the second pulley, then passes through the working rope interface and connects to the gondola. The safety rope passes through the safety rope interface and extends downward. The gondola is located inside the container, below the lateral moving boom.

[0005] Furthermore, the boom drive device includes a support frame fixedly installed inside the container, the support frame extending into the upper space of the container, a lateral moving boom installed on the upper part of the support frame, the lateral moving boom and the support frame being configured as a sliding pair along the length of the container, the cylinder body of the hydraulic cylinder being fixedly connected to the support frame, and the piston rod of the hydraulic cylinder being fixedly connected to the lateral moving boom.

[0006] Furthermore, the gondola is equipped with a bollard on the side facing the truck cab.

[0007] Compared with existing technologies, this invention offers positive and significant advantages. When the working rope breaks, the pressure of the wire rope on the boom disappears, the torsion spring rotates the boom counterclockwise, triggering the rope locking mechanism to clamp the safety rope, preventing the gondola from falling and ensuring safety. Furthermore, this invention integrates the gondola winch, boom drive device, lateral boom movement, and gondola into a container, improving wind and water resistance and facilitating transportation. Attached Figure Description

[0008] Figure 1 This is a schematic diagram illustrating the usage status of an improved downhole maintenance device according to this utility model.

[0009] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0010] Figure 3 This is a schematic diagram of the retracted state of an improved downhole maintenance device according to this utility model. Detailed Implementation

[0011] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0012] like Figures 1-3 As shown, an improved downhole maintenance device of this utility model includes a truck 1, a container 2, and a gondola 13. The container 2 is detachably connected to the truck 1. A boom drive device 3 is fixedly installed inside the container 2. The power output end of the boom drive device 3 is connected to a lateral moving boom 4. A gondola winch 5 is fixedly installed inside the container 2 below the boom drive device 3. A first pulley 6 is installed inside the container 2 above the gondola winch 5. A second pulley 7 is installed at the end of the lateral moving boom 4. The output rope of the gondola winch 5 is a working rope 8. A safety rope winch 9 is installed at the end of the lateral moving boom 4. The output rope of the safety rope winch 9 is a safety rope 10. A rope breakage protection device 11 is installed on the gondola 13. The rope breakage protection device 11 includes a working rope interface and a safety rope interface. The working rope 8 passes around the first pulley 6 and the second pulley 7, then passes through the working rope interface and connects to the gondola 13. The safety rope 10 passes through the safety rope interface and extends downward. The gondola 13 is located inside the container 2, below the lateral moving boom 4.

[0013] Furthermore, the boom drive device 3 includes a support bracket fixedly installed inside the container 2, the support bracket extending to the upper space of the container 2, a lateral moving boom 4 installed on the upper part of the support bracket, the lateral moving boom 4 and the support bracket being configured as a sliding pair along the length direction of the container 2, the cylinder body of the hydraulic cylinder being fixedly connected to the support bracket, and the piston rod of the hydraulic cylinder being fixedly connected to the lateral moving boom 4.

[0014] Furthermore, the gondola 13 is provided with a bollard 12 on the side facing the truck cab.

[0015] Specifically, container 2 can be secured to truck 1 using twist locks and lashing straps.

[0016] Specifically, the specific structure and principle of the truck 1, container 2, crane 13, boom drive device 3, winch, pulley, rope breakage protection device 11, and hydraulic cylinder in this utility model, as well as other aspects not described in detail, all adopt well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0017] In use, container 2 is hoisted onto truck 1, and truck 1 is moved to the side of the deep well wall 14. The boom drive device 3 drives the lateral moving boom 4 to extend. The lateral moving boom 4 drives the gondola 13 to extend via the working rope 8. The gondola winch 5 lowers or raises the gondola 13 via the working rope 8, so that the tugboat 12 on the gondola 13 abuts against the well wall 14. Maintenance personnel enter the gondola 13, the gondola winch 5 releases the working rope 8, and the gondola 13 carries the maintenance personnel into the well for maintenance.

[0018] The rope breakage protection device 11 uses a normally closed safety lock of model LST30, which includes a lock housing 15, fixed to the gondola 13. The lock housing 15 is equipped with a swing arm 16 and a rope locking mechanism. The swing arm 16 is hinged to the lock housing 15 via a pivot. A torsion spring is installed between the swing arm 16 and the lock housing 15, biasing the swing arm 16 counterclockwise. Two rollers are mounted on the swing arm 16, and a wire rope passes between the two rollers. The safety rope 10 passes through the rope locking mechanism. During normal operation, the rollers are under pressure from the working rope 8, causing the swing arm 16 to rotate clockwise. At this time, the rope locking mechanism is loose, and the safety rope 10 can pass freely. When the working rope 8 breaks, the pressure of the working rope 8 on the swing arm 16 disappears, the torsion spring rotates the swing arm 16 counterclockwise, triggering the rope locking mechanism to clamp the safety rope 10, preventing the gondola 13 from falling and ensuring safety. In addition, this utility model integrates the gondola winch 5, the boom drive device 3, the lateral moving boom 4, and the gondola 13 into the container 2, which improves the wind and water resistance and makes transportation convenient.

Claims

1. An improved downhole servicing device characterized by, The system includes a truck, a container, and a gondola. The container is detachably attached to the truck. A boom drive unit is fixedly installed inside the container. The power output end of the boom drive unit is connected to a lateral moving boom. A gondola winch is fixedly installed inside the container below the boom drive unit. A first pulley is installed above the gondola winch inside the container. A second pulley is installed at the end of the lateral moving boom. The output rope of the gondola winch is the working rope. A safety rope winch is installed at the end of the lateral moving boom. The output rope of the safety rope winch is the safety rope. The gondola is equipped with a rope breakage protection device, which includes a working rope interface and a safety rope interface. The working rope passes over the first pulley and the second pulley, then passes through the working rope interface and connects to the gondola. The safety rope passes through the safety rope interface and extends downwards. The gondola is located inside the container, below the lateral moving boom.

2. An improved downhole servicing device as claimed in claim 1, wherein, The boom drive device includes a support frame fixedly installed inside the container, the support frame extending to the upper space of the container, a lateral moving boom installed on the upper part of the support frame, the lateral moving boom and the support frame being configured as a sliding pair along the length of the container, the cylinder body of the hydraulic cylinder being fixedly connected to the support frame, and the piston rod of the hydraulic cylinder being fixedly connected to the lateral moving boom.

3. An improved downhole servicing device as defined in claim 1, wherein, The gondola is equipped with a bollard on the side facing the truck's cab.

Images