Light rod anti-off cap mounting and dismounting tool

Abstract

The present application relates to the technical field of special tools for installing and dismounting polish rod in oil field, and discloses a polish rod anti-dropping cap installing and dismounting tool, which comprises a circular end cover and an annular fixing body, the bottom of the annular fixing body is fixed on the circular end cover, a handle and two rotating shaft fixing seats are included in the handle rod rotating part, the two rotating shaft fixing seats are symmetrically fixed on the circular end cover on the left and right sides of the annular fixing body, a front-to-back rotating shaft is installed on each rotating shaft fixing seat, a rotating sleeve is fixed on each rotating shaft, a handle capable of swinging left and right with the rotating sleeve is fixed on each rotating sleeve, a clamping block is fixed on the inner side of each handle, and a clamping hole corresponding to the clamping block is arranged on the annular fixing body and capable of entering and exiting. The present application has the advantages of reasonable and compact structure, convenient use, fast and easy installation and dismounting, saved operation time, high work efficiency, long service life, safety, labor saving, simplicity, high efficiency and the like.

Description

Technical Field

[0001] This invention relates to the technical field of special tools for installing and dismantling polished poles in oil fields, and is a tool for installing and dismantling polished pole anti-detachment caps. Background Technology

[0002] Rod pump lifting systems are an important means of reservoir development. In wells equipped with this type of lifting unit, the polished rod is a specially designed "sucker rod" to connect the sucker rod to the suspension cable. Because it is located at the top of the sucker rod and experiences the greatest stress, high-grade steel is required, and the surface is smooth. To prevent the sucker rod from breaking off downhole and falling to the bottom, a 100mm long coupling is added at the polished rod connection to provide suspension and prevent the sucker rod from falling into the well.

[0003] When specialized tools are unavailable for installing and removing the polished rod anti-detachment cap, there are two common methods for installing and removing the cap on traditional pumping units. One method involves scheduling and planning, using a truck-mounted crane or regular crane to attach a suspended platform on-site. One operator stands inside the platform while another pulls the traction rope to stabilize it for installation. From the moment the crane arrives, jacks are used for support, the platform is installed, and the entire process is completed. Under ideal conditions, this takes at least 30 to 40 minutes. The second method involves having one operator stand on the production pipeline or the suspension rope head, holding the suspension rope with one hand and using tools with the other. This not only poses a risk of falls from height but is also extremely awkward and inconvenient, wasting time.

[0004] Therefore, the following problems exist when operators install and dismantle the anti-drop cap on the polished pole: (1) When operating, operators can only step on the head of the suspension rope device on the polished pole to install and dismantle it with pipe wrenches. This operation not only poses a greater safety risk, but also poses a risk of falling from a height and getting injured; (2) For a small number of wellheads, even if the operator steps on the head of the suspension rope device, the height of the anti-drop cap cannot reach; (3) The Hongtai area has strong winds for two-thirds of the year. When the operator steps on the pipeline during strong winds, the operation is not only unstable, but the operator is also easily blown off by the wind; (4) After heavy snow in winter, the pipeline freezes, and the operator is prone to slipping and causing personal injury; (5) When there is oil on the pipeline, the operator is also prone to falling. Summary of the Invention

[0005] This invention provides a tool for installing and removing polished rod anti-detachment caps, which overcomes the shortcomings of the prior art and can effectively solve the problems of difficult installation and removal of polished rod anti-detachment caps and high operational safety risks in existing polished rod anti-detachment cap installation and removal operations.

[0006] The technical solution of the present invention is achieved through the following measures: a tool for installing and removing a bare rod anti-detachment cap, comprising an annular fixing part and a handle rotating part. The annular fixing part includes a circular end cap and an annular fixing body. The bottom of the annular fixing body is fixed on the circular end cap. The handle rotating part includes a handle and two rotating shaft fixing seats. The two rotating shaft fixing seats are symmetrically fixed on the circular end caps on the left and right sides of the annular fixing body. A front-to-back rotating shaft is installed on each rotating shaft fixing seat. A rotating sleeve is fixed on each rotating shaft. A handle that can swing left and right with the rotating sleeve is fixed on each rotating sleeve. A locking block is fixed inside each handle. A locking hole corresponding to the locking block is provided on the annular fixing body.

[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution:

[0008] Each handle has an arc-shaped locking block connector fixed to its inner side, and an arc-shaped locking block is fixedly connected to the arc-shaped locking block connector. The annular fixed body is provided with an arc-shaped locking hole that allows the corresponding arc-shaped locking block to enter and exit.

[0009] Each of the aforementioned rotating shaft mounting bases has a forward and backward rotating shaft mounted on it via bearings.

[0010] The circular end caps on the front and rear sides of the aforementioned annular fixed body are respectively equipped with pulleys. Fine steel wires or fine nylon lines are wound and installed on the two pulleys respectively, and the outer ends of the fine steel wires or fine nylon lines are connected to net bags.

[0011] This invention has a reasonable and compact structure, is easy to use, and is quick and easy to install and disassemble in the field. It is flexible, reliable, and easy to carry, simplifying the operation procedure, saving operation time, and increasing work efficiency. It also has a long service life and greatly reduces safety hazards for operators. It is safe, labor-saving, simple, and efficient. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the main structure of the present invention.

[0013] Appendix Figure 2 This is a top view of the structure of the present invention.

[0014] The codes in the attached diagram are as follows: 1 is a circular end cap, 2 is an annular fixed body, 3 is a rotating shaft fixed seat, 4 is a rotating shaft, 5 is a handle, 6 is a connector, 7 is an arc-shaped locking block, 8 is a rotating sleeve, 9 is an arc-shaped locking hole, and 10 is a pulley. Detailed Implementation

[0015] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0016] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0018] Example 1, as shown in the attached document Figure 1 , 2 As shown, the tool for installing and removing the anti-detachment cap on the bare rod includes an annular fixing part and a handle rotating part. The annular fixing part includes a circular end cap 1 and an annular fixing body 2. The bottom of the annular fixing body 2 is fixed on the circular end cap 1. The handle rotating part includes a handle 5 and two rotating shaft fixing seats 3. The two rotating shaft fixing seats 3 are symmetrically fixed on the circular end caps 1 on the left and right sides of the annular fixing body 2. A front-to-back rotating shaft 4 is installed on each rotating shaft 3. A rotating sleeve 8 is fixed on each rotating shaft 4. A handle 5 that can swing left and right with the rotating sleeve 8 is fixed on each rotating sleeve 8. A locking block is fixed inside each handle 5. A locking hole corresponding to the locking block is provided on the annular fixing body 2.

[0019] Without specialized tools for installing and removing the anti-fall cap on the bare pole, a plan is made through scheduling to use a truck-mounted crane or a crane to hang a suspended basket on site. One operator stands inside the basket while another pulls the traction rope to stabilize the basket for replacement and installation. From the moment the crane arrives on site, jacks are used for support, and then the basket is installed until the operation is completed, the entire process takes at least 30 to 40 minutes if completed smoothly and safely. Secondly, if an operator is working alone with their feet on the production pipeline or on the suspension rope head, the operator has to use one hand to hold the suspension rope and the other hand to use tools, which not only poses a risk of falling from a height but is also extremely awkward, inconvenient, and time-consuming.

[0020] When using this invention, invert the device, hold one handle 5 in each hand, and place the upper end of the annular fixing body 2 of the tool for installing and removing the anti-detachment cap on the anti-detachment cap. Then, place the locking blocks on the two handles 5 into the locking holes and rotate the two handles 5 clockwise (installation); conversely, rotate the two handles 5 counterclockwise (removal). When the anti-detachment cap threads are removed, the two handles 5 clamp the anti-detachment cap, allowing it to be easily removed. This invention allows the operator to perform the installation and removal of the anti-detachment cap independently from the ground. In actual use, the handles 5 of appropriate length can be matched according to the remaining height of the oil pumping unit's polished rod. The entire operation not only effectively reduces safety hazards and operational risks but can also be completed independently and efficiently.

[0021] The above-mentioned tools for installing and removing the anti-detachment cap on the bare pole can be further optimized and / or improved according to actual needs:

[0022] Example 2, as shown in the attached document Figure 1 , 2 As shown, an arc-shaped locking block connector 6 is fixed to the inner side of each handle 5, and an arc-shaped locking block 7 is fixedly connected to the arc-shaped locking block connector 6. An arc-shaped locking hole 9 is provided on the annular fixing body 2 so that the arc-shaped locking block 7 can enter and exit. The arc shape allows for better positioning.

[0023] Example 3, as shown in the appendix Figure 1 , 2 As shown, for ease of installation, each rotating shaft mounting base 3 is equipped with a front-to-back rotating shaft 4 via bearings.

[0024] Example 4, as shown in the attached document Figure 1 , 2 As shown, the difference from Embodiments 1 to 3 is that: pulleys 10 are respectively installed on the top of the circular end caps 1 on both the front and rear sides of the annular fixing body 2. Fine steel wires or fine nylon threads are wound around the two pulleys 10, and the outer ends of the fine steel wires or fine nylon threads are connected to mesh bags. When it is necessary to replace the optical rod fixing load sensor, the optical rod fixing load sensor is directly placed inside the mesh bag, and this tool is used to install or remove the optical rod fixing load sensor at the same time. The advantage of this is that the two tasks can be completed at the same time, saving time.

[0025] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A tool for installing and removing anti-detachment caps on bare poles, characterized in that... The device includes an annular fixing part and a handle rotating part. The annular fixing part includes a circular end cap and an annular fixing body. The bottom of the annular fixing body is fixed on the circular end cap. The handle rotating part includes a handle and two rotating shaft fixing seats. The two rotating shaft fixing seats are symmetrically fixed on the circular end caps on the left and right sides of the annular fixing body. A front-to-back rotating shaft is installed on each rotating shaft. A rotating sleeve is fixed on each rotating shaft. A handle that can swing left and right with the rotating sleeve is fixed on each rotating sleeve. A locking block is fixed inside each handle. A locking hole corresponding to the locking block is provided on the annular fixing body.

2. The tool for installing and removing the anti-detachment cap on a smooth rod according to claim 1, characterized in that... An arc-shaped locking block connector is fixed to the inside of each handle, and an arc-shaped locking block is fixedly connected to the arc-shaped locking block connector. An arc-shaped locking hole is provided on the annular fixed body so that the corresponding arc-shaped locking block can enter and exit.

3. The tool for installing and removing the anti-detachment cap on a smooth rod according to claim 1 or 2, characterized in that... Each rotating shaft mounting base has a forward and backward rotating shaft mounted on it via bearings.

4. The tool for installing and removing the anti-detachment cap on a smooth rod according to claim 1 or 2, characterized in that... The top of the circular end caps on the front and rear sides of the ring-shaped fixed body is equipped with pulleys. Fine steel wires or fine nylon lines are wound around the two pulleys, and the outer ends of the fine steel wires or fine nylon lines are connected to net bags.

5. The tool for installing and removing the anti-detachment cap on a smooth rod according to claim 3, characterized in that... The top of the circular end caps on the front and rear sides of the ring-shaped fixed body is equipped with pulleys. Fine steel wires or fine nylon lines are wound around the two pulleys, and the outer ends of the fine steel wires or fine nylon lines are connected to net bags.

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