Anti-falling elevator pin lock device

Abstract

The utility model relates to an anti-drop elevator pin lock device, which comprises a locking seat, an elevator pin, a mounting mechanism, an unlocking adjusting mechanism and a locking mechanism, the left end and the right end of the mounting mechanism are respectively connected with the locking seat, the lower end of the mounting mechanism is connected with the elevator pin, the unlocking adjusting mechanism is arranged between the mounting mechanism and the elevator pin, and the locking mechanism is connected with the unlocking adjusting mechanism. The bottom end of the locking seat is locked with the elevator pin through a locking mechanism; the locking seat ascends and descends through the unlocking adjusting mechanism and slides through the locking mechanism at the same time, and assembly and disassembly of the anti-disengaging elevator pin lock device are completed. According to the elevator pin, the defects that the elevator pin jumps and shakes and a lifting ring slips from an ear hole of an elevator due to the fact that friction is generated between the elevator pin and the elevator pin hole and a gap is formed after the elevator pin is used for a long time are overcome, and potential safety hazards caused by the defects are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling equipment, and particularly relates to an anti - detachment elevator latch locking device. Background Art

[0002] In drilling engineering, an elevator is a tool used to lift drill pipes, tubing, casing and other tubulars. It is suspended inside the lifting rings on both sides of the hook of the hoisting system for the operation of pulling out or lowering drill tools, tubing and casing in the wellbore. During actual use, due to various factors such as the environment, the lifting ring is likely to slip out of the ear hole of the elevator, leading to major safety accidents. To prevent the lifting ring from falling off the ear hole of the elevator, an anti - detachment device is usually provided on the elevator. Most of the anti - detachment devices in the prior art adopt the elevator latch structure. A longitudinal elevator latch hole is provided at the lifting ear of the elevator. When the elevator latch is inserted into the elevator latch hole, it can prevent the lifting ring from falling off the ear hole of the elevator. This kind of anti - detachment device has a simple structure and is convenient for processing. However, its stability is poor. After long - term use, friction occurs between the elevator latch and the elevator latch hole, forming a gap, resulting in the jumping, shaking and slipping of the elevator latch, posing a safety hazard. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an anti - detachment elevator latch locking device, which avoids the defects that after long - term use, friction occurs between the elevator latch and the elevator latch hole, forming a gap, resulting in the jumping, shaking of the elevator latch and the slipping of the lifting ring from the ear hole of the elevator, and eliminates the safety hazards caused thereby.

[0004] The utility model solves its technical problems through the following technical solutions:

[0005] An anti - detachment elevator latch locking device includes a locking seat, an elevator latch, an installation mechanism, an unlocking and adjusting mechanism and a locking mechanism. The left and right ends of the installation mechanism are respectively connected to the locking seat, the lower end of the installation mechanism is connected to the elevator latch, an unlocking and adjusting mechanism is installed between the installation mechanism and the elevator latch, and the bottom end of the locking seat and the elevator latch are locked through the locking mechanism; the locking seat is lifted and lowered through the unlocking and adjusting mechanism, and at the same time, it slides through the locking mechanism to complete the loading and unloading of the anti - detachment elevator latch locking device;

[0006] The unlocking and adjusting mechanism includes a block and a spring. The lower end of the installation mechanism is clamped with the block, the lower end of the block is connected to the spring, and the lower end of the spring is fixed on the elevator latch. The installation mechanism connecting the locking seat presses down the block to compress the spring, so that the locking seat is lifted and lowered;

[0007] The locking mechanism includes a locking rod placed on the locking seat and a locking groove placed on the elevator latch. The locking seat and the elevator latch are tightened and loosened by the sliding of the locking rod in the locking groove.

[0008] Further, the installation mechanism includes an installation sleeve and a fixed shaft installed in the installation sleeve. A clamping block is clamped at the lower ends of the installation sleeve and the fixed shaft. The fixed shaft connecting the locking seat presses down the clamping block to compress the spring, causing the locking seat to move up and down.

[0009] Further, clamping grooves adapted to the clamping block are provided at the lower ends of both the installation sleeve and the fixed shaft.

[0010] Further, a groove for installing a spring is provided at the upper end of the lifting pin.

[0011] Further, it further includes a mounting rope hole fixed to the upper end of the installation mechanism.

[0012] The advantages and positive effects of the present utility model are as follows:

[0013] 1. For the anti - detachment lifting pin locking device of the present utility model, its unlocking and adjusting mechanism includes a clamping block and a spring. The clamping block is clamped at the lower end of the installation mechanism. The lower end of the clamping block is connected to the spring, and the lower end of the spring is fixed on the lifting pin. The installation mechanism connecting the locking seat presses down the clamping block to compress the spring, causing the locking seat to move up and down, which is convenient for the loading and unloading of the anti - detachment lifting pin locking device.

[0014] 2. For the anti - detachment lifting pin locking device of the present utility model, its locking mechanism includes a locking rod placed on the locking seat and a locking groove placed on the lifting pin. The locking seat and the lifting pin are tightened or loosened by the sliding of the locking rod in the locking groove, and the anti - detachment lifting pin locking device can lock the lifting clamp and the lifting ring.

[0015] 3. The anti - detachment lifting pin locking device of the present utility model includes a locking seat, a lifting pin, an installation mechanism, an unlocking and adjusting mechanism, and a locking mechanism. The left and right ends of the installation mechanism are respectively connected to the locking seat, the lower end of the installation mechanism is connected to the lifting pin, an unlocking and adjusting mechanism is installed between the installation mechanism and the lifting pin, and the bottom end of the locking seat and the lifting pin are locked by the locking mechanism; the locking seat moves up and down through the unlocking and adjusting mechanism, and at the same time, slides through the locking mechanism to complete the loading and unloading of the anti - detachment lifting pin locking device. It avoids the defects that after long - term use, the lifting pin and the lifting pin hole rub against each other and form a gap, resulting in the lifting pin jumping, shaking, and the lifting ring slipping out of the ear hole of the lifting clamp, and eliminates the potential safety hazards caused thereby. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the assembly drawing of the anti - detachment lifting pin locking device of the present utility model;

[0017] Figure 2 is the structural schematic diagram of the anti - detachment lifting pin locking device of the present utility model;

[0018] Figure 3 is the partial enlarged structural schematic diagram of the unlocking and adjusting mechanism of the installation mechanism of the anti - detachment lifting pin locking device of the present utility model;

[0019] Figure 4Schematic diagram of the initial state of the anti - detachment lifting clamp pin locking device of the present utility model;

[0020] Figure 5 Schematic diagram of the use state of the anti - detachment lifting clamp pin locking device of the present utility model;

[0021] In the figure:

[0022] 1 - Installation rope hole, 2 - Installation sleeve, 3 - Clamping block, 4 - Locking seat, 5 - Locking rod, 6 - Lifting clamp pin, 7 - Bottom rod, 8 - Groove, 9 - Spring, 10 - Fixed shaft, 11 - Card slot, 12 - Locking groove, 13 - Lifting clamp, 14 - Suspension ring, 15 - Ear hole, 16 - Lifting clamp pin hole. Specific implementation mode

[0023] The present utility model will be further described in detail through specific embodiments below. The following embodiments are only descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereby.

[0024] As Figures 1-5 shown, an anti - detachment lifting clamp pin locking device includes a locking seat 4, a lifting clamp pin 6, an installation mechanism, an unlocking and adjusting mechanism, a locking mechanism, and an installation rope hole 1 fixed to the upper end of the installation mechanism. The left and right ends of the installation mechanism are respectively connected to the locking seat 4, the lower end of the installation mechanism is connected to the lifting clamp pin 6, an unlocking and adjusting mechanism is installed between the installation mechanism and the lifting clamp pin 6, and the bottom end of the locking seat 4 and the lifting clamp pin 6 are locked through the locking mechanism; the locking seat 4 is lifted and lowered through the unlocking and adjusting mechanism, and at the same time, it slides through the locking mechanism to complete the loading and unloading of the anti - detachment lifting clamp pin locking device. The present utility model avoids the defects that after long - term use, the lifting clamp pin 6 and the lifting clamp pin hole 16 generate friction and form a gap, resulting in the jumping, shaking of the lifting clamp pin 6 and the slipping of the suspension ring 14 from the ear hole 15 of the lifting clamp 13, and eliminates the potential safety hazards caused thereby.

[0025] The installation mechanism includes an installation sleeve 2 and a fixed shaft 10 installed in the installation sleeve 2. The unlocking and adjusting mechanism includes a clamping block 3 and a spring 9. Card slots 11 adapted to the clamping block 3 are provided at the lower ends of both the installation sleeve 2 and the fixed shaft 10. The clamping block 3 is clamped in the card slots 11 at the lower ends of the installation sleeve 2 and the fixed shaft 10. The spring 9 is fixed to the lower end of the clamping block 3. A groove 8 for installing the spring 9 is provided at the upper end of the lifting clamp pin 6, and the lower end of the spring 9 is fixed on the lifting clamp pin 6. The fixed shaft 10 connecting the locking seat 4 presses down the clamping block 3 to compress the spring 9, so that the locking seat 4 is lifted and lowered.

[0026] The locking mechanism includes a locking rod 5 placed in the middle of the bottom rod 7 of the locking seat 4 and a locking groove 12 placed on the lifting clamp pin 6 corresponding to the locking rod 5. The locking seat 4 and the lifting clamp pin 6 are tightened and loosened by the sliding of the locking rod 5 in the locking groove 12.

[0027] Working principle of the present utility model:

[0028] Initial state, taking the left side of the elevating bail 13 as an example, the lifting ring 14 is inserted into the ear hole 15 of the elevating bail 13, the elevating bail pin 6 is inserted into the elevating bail pin hole 16 of the elevating bail 13, the installation mechanism is located at the upper end of the lifting lug, and the locking rod 5 placed in the middle of the bottom rod 7 of the locking seat 4 is disengaged from the locking groove 12 corresponding to the locking rod 5 and placed on the elevating bail pin 6; the right side of the elevating bail 13 is carried out simultaneously, and the safety rope passes through the safety rope hole.

[0029] Using state, taking the left side of the elevating bail 13 as an example, the lifting ring 14 is inserted into the ear hole 15 of the elevating bail 13, the elevating bail pin 6 is inserted into the elevating bail pin hole 16 of the elevating bail 13, the installation mechanism is located at the upper end of the lifting lug, the locking seat 4 is driven to move downward through the unlocking adjustment mechanism, and the locking rod 5 placed in the middle of the bottom rod 7 of the locking seat 4 is clamped in the locking groove 12 corresponding to the locking rod 5 and placed on the elevating bail pin 6; the right side of the elevating bail 13 is carried out simultaneously, and the safety rope passes through the safety rope hole 1 to complete the installation and locking of the anti-drop elevating bail pin locking device; after the hoisting is completed, the locking seat 4 is driven to move downward through the unlocking adjustment mechanism, the locking rod 5 slides in the locking groove 12 to disengage the locking rod 5 from the locking groove 12, and the right side of the elevating bail 13 is carried out simultaneously to take out the safety rope from the safety rope hole 1 to complete the unlocking and removal of the anti-drop elevating bail pin locking device.

[0030] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. An anti-drop hanging card pin locking device, characterized in that: The invention comprises a locking seat (4), a hanging card pin (6), a mounting mechanism, an unlocking adjustment mechanism and a locking mechanism, wherein the left and right ends of the mounting mechanism are respectively connected to the locking seat (4), the lower end of the mounting mechanism is connected to the hanging card pin (6), an unlocking adjustment mechanism is installed between the mounting mechanism and the hanging card pin (6), and the bottom end of the locking seat (4) and the hanging card pin (6) are locked by the locking mechanism; the locking seat (4) is raised and lowered by the unlocking adjustment mechanism, and at the same time, the anti-drop hanging card pin locking device is slid by the locking mechanism to complete the loading and unloading of the anti-drop hanging card pin locking device; The unlocking and adjusting mechanism comprises a clamping block (3) and a spring (9); the clamping block (3) is clamped at the lower end of the mounting mechanism; the lower end of the clamping block (3) is connected to the spring (9); the lower end of the spring (9) is fixed on the hanging pin (6); the mounting mechanism connected to the locking seat (4) presses down the clamping block (3) to compress the spring (9), so that the locking seat (4) is lifted or lowered; The locking mechanism comprises a locking rod (5) disposed on a locking seat (4) and a locking groove (12) disposed on a hanging card pin (6); the locking seat (4) and the hanging card pin (6) are loosened or tightened by the locking rod (5) sliding in the locking groove (12).

2. The anti-drop hanging card pin locking device according to claim 1, characterized in that: The mounting mechanism comprises a mounting sleeve (2) and a fixed shaft (10) mounted in the mounting sleeve (2); a clamping block (3) is clamped at the lower ends of the mounting sleeve (2) and the fixed shaft (10); the fixed shaft (10) connected to the locking seat (4) presses down the clamping block (3) to compress the spring (9), thereby causing the locking seat (4) to rise and fall.

3. The anti-drop hanging card pin locking device according to claim 2, characterized in that: The lower ends of the installation sleeve (2) and the fixed shaft (10) are both provided with a clamping groove (11) adapted to the clamping block (3).

4. The anti-drop hanging card pin locking device according to claim 1, characterized in that: The upper end of the hanging pin (6) is provided with a groove (8) for installing a spring (9).

5. The anti-drop hanging card pin locking device according to claim 1, characterized in that: It also includes a mounting rope hole (1) fixed to the upper end of the mounting mechanism.

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