A heat insulation protection device for drill collar

Abstract

The utility model relates to the field of protective devices, and discloses a heat insulation protective device for drill collars, including a first heat insulation sleeve, the left and right rear parts of the first heat insulation sleeve are fixedly connected with mounting blocks, the rear side of the mounting block is fixedly connected with a connecting block, the outer side of the connecting block is slidably connected with a mounting sleeve, the opposite side of the mounting sleeve is fixedly connected with a second heat insulation sleeve, the front side of the first heat insulation sleeve is provided with a heating hole, the upper part of the mounting sleeve is provided with a connecting component, the upper parts of the first and second heat insulation sleeves are provided with a liquid inlet component, the connecting component includes an installation box, a limit column, a limit rod, a reset spring and a handle, and the installation box is fixedly connected to the upper part of the installation sleeve. In the utility model, through the cooperation between the structures such as the installation box, the limit column, the limit rod, the reset spring and the handle, the heat insulation protective device for drill collars is easy to install, and the practicality of the heat insulation protective device is improved.

Description

Technical Field

[0001] The utility model relates to the field of protective devices, in particular to a heat insulation protective device for a drill collar. Background Art

[0002] A drill collar is a tool used for drilling or punching holes underground. As an important geological exploration and mining tool, it is widely used in oil and gas exploration, geological exploration, water well drilling and infrastructure construction. After a long period of drilling, the drill collar is subjected to an eccentric torque during drilling due to the uneven hardness of the drilled rock and soil layer, which makes the drill collar prone to bending and needs to be heated to correct the deviation. However, during heating, the part of the drill collar that does not need to be heated will be affected by the high temperature. Therefore, a heat insulation protection device for the drill collar is needed.

[0003] In the prior art, the heat insulation protection device used for drill collars is often inconvenient to install when performing heat insulation protection on the drill collars, resulting in the general practicality of the heat insulation protection device. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a heat insulation protection device for a drill collar, aiming to improve the problem that the heat insulation protection device in the prior art is inconvenient to install, resulting in general practicality.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat insulation protection device for a drill collar, comprising a first heat insulation sleeve, the left and right rear parts of the first heat insulation sleeve are fixedly connected with mounting blocks, the rear side of the mounting block is fixedly connected with a connecting block, the outer side of the connecting block is slidably connected with a mounting sleeve, the opposite side of the mounting sleeve is fixedly connected with a second heat insulation sleeve, a heating hole is opened on the front side of the first heat insulation sleeve, a connecting assembly is arranged on the upper part of the mounting sleeve, and liquid inlet assemblies are arranged on the upper parts of the first heat insulation sleeve and the second heat insulation sleeve.

[0006] As a further description of the above technical solution:

[0007] The connecting assembly includes an installation box, a limit column, a limit rod, a reset spring and a handle. The installation box is fixedly connected to the upper part of the installation sleeve, the limit column is slidably connected to the lower middle part of the installation box, the limit rod is slidably connected to the upper middle part of the installation box, the reset spring is sleeved on the outside of the limit rod, and the handle is fixedly connected to the upper part of the limit rod.

[0008] As a further description of the above technical solution:

[0009] The liquid inlet assembly comprises a liquid inlet pipe and a valve. The liquid inlet pipe is fixedly connected to the upper parts of the first heat insulation sleeve and the second heat insulation sleeve, and the valve is fixedly connected to the outside of the liquid inlet pipe.

[0010] As a further description of the above technical solution:

[0011] The second thermal insulation sleeve is located at the rear side of the first thermal insulation sleeve.

[0012] As a further description of the above technical solution:

[0013] The limiting rod is fixedly connected to the upper part of the limiting column, and the limiting column passes through the connecting block and the mounting sleeve.

[0014] As a further description of the above technical solution:

[0015] One end of the return spring is fixedly connected to the limiting column, and the other end of the return spring is fixedly connected to the limiting rod.

[0016] As a further description of the above technical solution:

[0017] The second heat-insulating sleeve and the first heat-insulating sleeve both have cavities therein.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, the heat insulation protection device for the drill collar is easy to install through the cooperation among the structures such as the installation box, the limit column, the limit rod, the reset spring and the handle, thereby improving the practicability of the heat insulation protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a heat insulation protection device for a drill collar proposed by the utility model;

[0021] Figure 2 for Figure 1 A in the enlarged view;

[0022] Figure 3 The utility model is a cross-sectional view of an installation box of a heat insulation protection device for a drill collar.

[0023] Legend:

[0024] 1. First thermal insulation sleeve; 2. Mounting block; 3. Connecting block; 4. Mounting sleeve; 5. Mounting box; 6. Limiting column; 7. Limiting rod; 8. Reset spring; 9. Handle; 10. Second thermal insulation sleeve; 11. Heating hole; 12. Valve; 13. Liquid inlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-3 The utility model provides an embodiment: a heat insulation protection device for a drill collar, comprising a first heat insulation sleeve 1, the rear parts of the left and right sides of the first heat insulation sleeve 1 are fixedly connected with mounting blocks 2, the rear side of the mounting block 2 is fixedly connected with a connecting block 3, the outer side of the connecting block 3 is slidably connected with a mounting sleeve 4, the opposite side of the mounting sleeve 4 is fixedly connected with a second heat insulation sleeve 10, a heating hole 11 is opened on the front side of the first heat insulation sleeve 1, a connecting component is arranged on the upper part of the mounting sleeve 4, a liquid inlet component is arranged on the upper part of the first heat insulation sleeve 1 and the second heat insulation sleeve 10, and the second heat insulation sleeve 10 is located at the first heat insulation sleeve 1. On the rear side of the sleeve 1, the connecting assembly includes an installation box 5, a limit column 6, a limit rod 7, a reset spring 8 and a handle 9. The installation box 5 is fixedly connected to the upper part of the installation sleeve 4, the limit column 6 is slidably connected to the lower middle part of the installation box 5, the limit rod 7 is slidably connected to the upper middle part of the installation box 5, the reset spring 8 is sleeved on the outside of the limit rod 7, the handle 9 is fixedly connected to the upper part of the limit rod 7, the limit rod 7 is fixedly connected to the upper part of the limit column 6, the limit column 6 passes through the connecting block 3 and the installation sleeve 4, one end of the reset spring 8 is fixedly connected to the limit column 6, and the other end of the reset spring 8 is fixedly connected to the limit rod 7.

[0027] The heating hole 11 is moved to the position of the drill collar where heating is required by fitting the first thermal insulation sleeve 1 to the outside of the drill collar, and then the handle 9 is pulled to make the limit rod 7 drive the limit column 6 to move so that the limit column 6 squeezes the reset spring 8, and the reset spring 8 is limited by the limit rod 7, and then the second thermal insulation sleeve 10 is pushed so that the second thermal insulation sleeve 10 drives the installation sleeve 4 to move to the outside of the connecting block 3, and finally the handle 9 is released so that the reset spring 8 loses pressure and resets to push the limit column 6, so that the limit column 6 slides through the connecting block 3 and the installation sleeve 4.

[0028] Reference Figure 1 The liquid inlet assembly includes a liquid inlet pipe 13 and a valve 12. The liquid inlet pipe 13 is fixedly connected to the upper part of the first insulation sleeve 1 and the second insulation sleeve 10. The valve 12 is fixedly connected to the outer side of the liquid inlet pipe 13. Both the second insulation sleeve 10 and the first insulation sleeve 1 are provided with cavities.

[0029] When the drill collar needs to be insulated, the valve 12 is opened and the coolant is added to the cavity through the liquid inlet pipe 13. The drill collar is insulated by the cooperation among the liquid inlet pipe 13, the valve 12 and the cavity.

[0030] Working principle: When the thermal insulation protection device needs to be installed, the first thermal insulation sleeve 1 is attached to the outside of the drill collar to move the heating hole 11 to the position of the drill collar that needs to be heated, and then the handle 9 is pulled to make the limit rod 7 drive the limit column 6 to move so that the limit column 6 squeezes the reset spring 8, and then the second thermal insulation sleeve 10 is pushed so that the second thermal insulation sleeve 10 drives the installation sleeve 4 to move to the outside of the connecting block 3, and finally the handle 9 is released so that the reset spring 8 loses pressure and resets to push the limit column 6, so that the limit column 6 slides through the connecting block 3 and the installation sleeve 4, thereby realizing that the thermal insulation protection device for the drill collar is easy to install and the practicality of the thermal insulation protection device is improved.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat insulation protection device for a drill collar, comprising a first heat insulation sleeve (1), characterized in that: The first thermal insulation sleeve (1) is fixedly connected to mounting blocks (2) at the rear of both left and right sides, the mounting blocks (2) are fixedly connected to a connecting block (3) at the rear, the connecting blocks (3) are slidably connected to the outer side of a mounting sleeve (4), the mounting sleeve (4) is fixedly connected to the opposite side of the second thermal insulation sleeve (10), a heating hole (11) is provided at the front side of the first thermal insulation sleeve (1), a connecting assembly is provided at the top of the mounting sleeve (4), and liquid inlet assemblies are provided at the tops of the first thermal insulation sleeve (1) and the second thermal insulation sleeve (10).

2. A heat insulation protection device for drill collar according to claim 1, characterized in that: The connection assembly comprises an installation box (5), a limiting column (6), a limiting rod (7), a reset spring (8) and a handle (9); the installation box (5) is fixedly connected to the upper part of the installation sleeve (4); the limiting column (6) is slidably connected to the lower middle part of the installation box (5); the limiting rod (7) is slidably connected to the upper middle part of the installation box (5); the reset spring (8) is sleeved on the outer side of the limiting rod (7); and the handle (9) is fixedly connected to the upper part of the limiting rod (7).

3. A heat insulation protection device for drill collar according to claim 1, characterized in that: The liquid inlet assembly comprises a liquid inlet pipe (13) and a valve (12); the liquid inlet pipe (13) is fixedly connected to the upper part of the first heat insulation sleeve (1) and the second heat insulation sleeve (10); and the valve (12) is fixedly connected to the outside of the liquid inlet pipe (13).

4. A heat insulation protection device for drill collar according to claim 1, characterized in that: The second thermal insulation sleeve (10) is located at the rear side of the first thermal insulation sleeve (1).

5. A heat insulation protection device for drill collar according to claim 2, characterized in that: The limiting rod (7) is fixedly connected to the upper part of the limiting column (6), and the limiting column (6) passes through the connecting block (3) and the mounting sleeve (4).

6. A heat insulation protection device for drill collar according to claim 2, characterized in that: One end of the return spring (8) is fixedly connected to the limiting column (6), and the other end of the return spring (8) is fixedly connected to the limiting rod (7).

7. A heat insulation protection device for drill collar according to claim 1, characterized in that: The second thermal insulation sleeve (10) and the first thermal insulation sleeve (1) both have cavities inside.

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