CN219888006U - Rat hole thread protector and drilling platform - Google Patents

Abstract

The utility model provides a rat hole thread protector and a drilling platform, and relates to the technical field of oil gas collection. Wherein, a mousehole thread protector for auxiliary oil casing throws into the mousehole of drilling platform, include: the throwing barrel extends along a first direction, and a throwing channel which extends in the same direction and penetrates through two ends of the throwing barrel is arranged in the throwing barrel; the first end cover is arranged at one end of the throwing barrel in the extending direction, and a first through hole with the shape and the size matched with the throwing channel is formed in the position corresponding to the throwing channel; and the plurality of rotating parts encircle the delivery channel and are positioned on one side of the first end cover, which is away from the delivery cylinder, the plurality of rotating parts are respectively connected with the first end cover in a rotating way, and when the oil sleeve passes through the delivery channel, the circumferential side part of each rotating part is tangent with the circumferential side part of the oil sleeve. The utility model can effectively solve the technical problem that the air tightness of the oil sleeve is damaged due to the direct collision between the end surface screw thread of the oil sleeve and the hole when the oil sleeve is put into the rat hole.

Description

Rat hole thread protector and drilling platform

Technical Field

The utility model relates to the technical field of oil and gas collection, in particular to a rat hole thread protector and a drilling platform.

Background

The oil sleeve can be sealed by carrying out threaded connection on the end face of the oil sleeve through the air-tight buckle, so that the air-tight effect is realized. In the oil gas collection operation field, a detection tool is often required to be put into a pipe column to be detected for airtight detection.

The current drill floor rat hole is mostly made of iron materials, so that the hardness of the hole is higher, the oil sleeve can collide with the hole of the rat hole when being directly fed into the rat hole, and if the end face of the oil sleeve collides with the hole, the threaded structure on the oil sleeve can be damaged, so that the airtight effect is seriously influenced. In order to avoid the problem that the sealing performance is affected due to collision of the end face of the oil sleeve at the rat hole, when some sites are operated, constructors can choose to directly throw a detection tool into the oil sleeve above the hole without firstly conveying the oil sleeve into the rat hole, and then conveying the oil sleeve into the rat hole after sealing and detection are completed.

Limited by the length of the oil casing, when the operation is carried out, on-site operators also need to build a monkey board above the rat hole, and the detection tools are put into the oil casing at a high place by means of the monkey board, so that the operation intensity of the operators is increased, and certain safety problems exist. Therefore, how to protect the end surface screw thread of the oil sleeve when the oil sleeve is sent into the rat hole so as to avoid the direct collision between the end surface screw thread of the oil sleeve and the hole, thereby reducing the working strength of operators when putting in the detection tool, and being the technical problem to be solved currently in need.

Disclosure of Invention

The embodiment of the utility model aims to provide a rat hole thread protector for solving the technical problem that the air tightness of an oil sleeve is damaged due to direct collision between the end surface thread of the oil sleeve and a hole opening when the oil sleeve is put into the rat hole.

In order to solve the technical problems, the embodiment of the utility model provides the following technical scheme:

the first aspect of the present utility model provides a mousehole wire guard comprising: the throwing barrel extends along a first direction, and a throwing channel which extends in the same direction and penetrates through two ends of the throwing barrel is arranged in the throwing barrel; the first end cover is arranged at one end of the throwing barrel in the extending direction, and a first through hole with the shape and the size matched with the throwing channel is formed in the position corresponding to the throwing channel; and the plurality of rotating parts encircle the delivery channel and are positioned on one side of the first end cover, which is away from the delivery cylinder, the plurality of rotating parts are respectively connected with the first end cover in a rotating way, and when the oil sleeve passes through the delivery channel, the circumferential side part of each rotating part is tangent with the circumferential side part of the oil sleeve.

In some variations of the first aspect of the utility model, the mousehole wire guard further comprises: the plurality of mounting frames encircle the putting channel and are fixed on one side of the first end cover, which is away from the putting cylinder, and the plurality of mounting frames are the same in number with the plurality of rotating parts and are arranged in an interpenetration manner; the rotating part is a roller, and two ends of each roller are respectively connected with the mounting frames on two sides of the roller in a rotating way.

In some variations of the first aspect of the utility model, the mousehole wire guard further comprises: the second end cover is arranged on one side, deviating from the first end cover, of the plurality of mounting frames, a second through hole is formed in the position, corresponding to the putting channel, of the second end cover, the second through hole is a polygonal hole, and the edges of the second through hole correspond to the plurality of rotating parts one by one.

In some variant embodiments of the first aspect of the utility model, the circumferential side of each turning part projects towards the inside of the dosing channel with respect to the edge of the second through hole.

In some variations of the first aspect of the utility model, the mousehole wire guard further comprises: the support columns are in one-to-one correspondence with the mounting frames and extend in the same direction with the throwing barrel respectively, and two ends of each support column in the extending direction are connected with the first end cover and the second end cover respectively.

In some modified embodiments of the first aspect of the present utility model, the number of the rotating portion, the mounting frame and the support column is four; each mounting frame is provided with two connecting portions which are perpendicular to each other, four mounting frames and four rotating portions are mutually inserted and arranged and evenly distributed around the putting channel, two ends of each rotating portion are respectively connected with the connecting portions of two adjacent mounting frames in a rotating mode, and each supporting column is arranged between included angles formed by the two connecting portions of the corresponding mounting frames.

In some variations of the first aspect of the utility model, the second through hole is a square hole having a chamfer at an edge facing away from an end of the mounting bracket.

In some modified embodiments of the first aspect of the present utility model, a circumferential side portion of each rotating portion is covered with a polyurethane protection layer.

In some variations of the first aspect of the present utility model, the dispensing barrel, the first end cap, the rotating portion, the mounting bracket, the second end cap, and the support post are all made of stainless steel material.

A second aspect of the utility model provides a drilling platform comprising: any one of the above-described first aspects of the present utility model provides a mousehole wire guard.

Compared with the prior art, the rat hole protection wire provided by the utility model is provided with the throwing barrel which is matched with the size of the rat hole on the drilling platform, can be connected with the rat hole on the drilling platform through the throwing barrel, and is propped against the surface of the drilling platform through the first end cover arranged at the end part of the throwing barrel so as to limit the rat hole protection wire. The inside of putting in the section of thick bamboo has the input passageway with the mousehole intercommunication, when needs put into the mousehole with the oil sleeve, aim at the input passageway with the oil sleeve at first, send into the input passageway of putting in the section of thick bamboo with the oil sleeve through a plurality of rotation portion that rotates on the first end cover, send into the in-process of mousehole at the oil sleeve via putting in the passageway, the circumference lateral part of oil sleeve and the circumference lateral part contact of a plurality of rotation portion, rotation portion can rotate around its axis with the oil sleeve relatively along with the action that the oil sleeve sent into, with auxiliary oil sleeve send into the action, can reduce the oil sleeve send into the friction with the mousehole when the mousehole through the relative rotation of rotation portion, and play a throwing in the effect of direction simultaneously, place the oil sleeve and produce too big skew in the in-process of sending into the mousehole and lead to the screw thread terminal surface of oil sleeve to produce the collision with the mousehole. The rat hole thread protector can protect the end surface threads of the oil sleeve when the oil sleeve is sent into the rat hole so as to avoid direct collision between the end surface threads of the oil sleeve and a hole, and under the protection of the rat hole thread protector, on-site constructors can send the oil sleeve into the rat hole through the rat hole thread protector before continuing subsequent detection tool throwing and air tightness detection operation. The rat hole thread protector provided by the utility model can protect the end surface thread of the oil sleeve when the oil sleeve is sent into the rat hole so as to avoid direct collision between the end surface thread of the oil sleeve and a hole, and can effectively reduce the working strength of operators when putting detection tools.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, wherein like or corresponding reference numerals indicate like or corresponding parts, there are shown by way of illustration, and not limitation, several embodiments of the utility model, in which:

fig. 1 schematically shows a schematic view of an axial side structure of a mousehole wire guard according to an embodiment of the utility model;

fig. 2 schematically illustrates a schematic diagram of a front view of a mousehole wire guard according to an embodiment of the utility model;

FIG. 3 schematically illustrates a schematic diagram of a top view of a mousehole wire guard according to an embodiment of the utility model;

FIG. 4 schematically illustrates a schematic view of an axial side structure of a mounting frame in a mousehole wire protector according to an embodiment of the utility model;

fig. 5 schematically shows a schematic view of a part of the structure of a drilling platform according to a second embodiment of the present utility model.

Reference numerals illustrate:

1. a delivery barrel; 101. a launch channel; 2. a first end cap; 201. a first through hole; 3. a rotating part; 4. a mounting frame; 401. a first connection portion; 402. a second connecting portion; 5. a second end cap; 6. a support column; 7. a drilling platform; 701. rat hole.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

Example 1

Referring to fig. 1 to 4, a rat hole wire guard according to an embodiment of the present utility model includes: a delivery tube 1 extending in a first direction and having a delivery passage 101 extending in the same direction and penetrating both ends thereof; the first end cover 2 is arranged at one end of the throwing barrel 1 in the extending direction, and a first through hole 201 with a shape and a size matched with the throwing channel 101 is formed at the position corresponding to the throwing channel 101; and a plurality of rotating parts 3 surrounding the delivery channel 101 and positioned on one side of the first end cover 2 away from the delivery barrel 1, wherein the rotating parts 3 are respectively connected with the first end cover 2 in a rotating way, and when the oil sleeve passes through the delivery channel 101, the circumference side part of each rotating part 3 is tangent with the circumference side part of the oil sleeve.

Specifically, the rat hole wire guard has a throwing barrel 1, the throwing barrel 1 is cylindrical and extends in the same direction as the rat hole 701 on the drilling platform 7, the outer diameter size of the throwing barrel 1 is not higher than the size of the rat hole 701, so that the throwing barrel 1 can be connected with the drilling platform 7 in a mode of inserting the rat hole 701, the throwing barrel 1 is internally provided with a throwing channel 101 extending in the same direction, the throwing channel 101 penetrates through two ends of the throwing barrel 1 and is communicated with the rat hole 701, the section of the cross section of the throwing channel perpendicular to the extending direction is circular, and the inner diameter size of the throwing channel is matched with the diameter size of an oil sleeve to be thrown.

Specifically, the first end cover 2 is disposed at one end of the dispensing barrel 1 in the extending direction, the first end cover 2 is communicated with the dispensing passage 101 inside the dispensing barrel 1 through a first through hole 201 formed in the first end cover 2, the first through hole 201 is a round hole, the aperture size of the first through hole is adapted to the inner diameter size of the dispensing passage 101, and when the dispensing barrel 1 is connected with a rat hole 701, the first end cover 2 at the end of the dispensing barrel 1 abuts against the surface of the drilling platform 7 to limit the wire protection of the rat hole. This first end cover 2 and put in a section of thick bamboo 1 integral type structure, can also be through processing first end cover 2 and put in a section of thick bamboo 1 respectively through integration machine-shaping, later through welded mode with first end cover 2 be fixed in the tip of putting in a section of thick bamboo 1, first end cover 2 can be circular or polygon, in this embodiment, this first end cover 2 is preferably circular to processing and reduction in production cost.

Specifically, a plurality of rotating parts 3 are arranged on one side, away from the throwing barrel 1, of the first end cover 2, the rotating parts 3 can be in structures such as rollers, rollers or balls, the rotating parts 3 are evenly arranged around the throwing channel 101 and are respectively in rotary connection with the first end cover 2, when an oil casing is conveyed into the rat hole 701 through the throwing channel 101, the circumferential side part of each rotating part 3 can be tangent with the circumferential side part of the oil casing, and can rotate around the axis of the oil casing along with the movement of the oil casing.

According to the above list, the rat hole protection wire is connected with the rat hole 701 on the drilling platform 7 through the throwing barrel 1 with the size of the rat hole 701 on the drilling platform 7 being adapted, and the first end cover 2 arranged at the end of the throwing barrel 1 is propped against the surface of the drilling platform 7 to limit the rat hole protection wire. When the oil casing needs to be put into the rat hole 701, the oil casing is aligned to the putting channel 101, the oil casing is sent into the putting channel 101 of the putting cylinder 1 through a plurality of rotating parts 3 rotationally connected on the first end cover 2, the circumferential side parts of the oil casing are contacted with the circumferential side parts of the plurality of rotating parts 3 in the process that the oil casing is sent into the rat hole 701 through the putting channel 101, the rotating parts 3 rotate around the axis relative to the oil casing along with the action of sending the oil casing so as to assist the sending action of the oil casing, the friction between the oil casing and the rat hole 701 when the oil casing is sent into the rat hole 701 can be reduced through the relative rotation of the rotating parts 3, and meanwhile, the effect of putting guide is played, the threaded end face of the oil casing is caused to collide with the rat hole 701 due to overlarge deflection generated in the process that the oil casing is sent into the rat hole 701. This mousehole thread protector can protect its terminal surface screw thread when the oil jacket is sent into mousehole 701 in order to avoid the direct collision of oil jacket's terminal surface screw thread and entrance to a cave, under the protection of this mousehole thread protector, on-the-spot constructor can send into mousehole 701 with the oil jacket earlier through this mousehole thread protector after, carries out subsequent testing tool and puts in again and gas tightness detects the operation, has effectively reduced operating strength when operating personnel put in testing tool.

Further, referring to fig. 1 to fig. 4, in some embodiments of the rat hole protection wire according to the first embodiment of the present utility model, in a specific implementation, the rat hole protection wire further includes: the plurality of mounting frames 4 encircle the throwing channel 101 and are fixed on one side of the first end cover 2, which is away from the throwing barrel 1, and the plurality of mounting frames 4 are the same in number as the plurality of rotating parts 3 and are arranged in an interpenetration manner; the rotating part 3 is a roller, and two ends of each roller are respectively connected with the mounting frames 4 on two sides of the roller in a rotating way.

Specifically, in order to realize the rotation connection between the plurality of rotation parts 3 and the first end cover 2, in the technical scheme adopted by the utility model, in the mousehole wire protector, one side of the first end cover 2, which is far away from the throwing barrel 1, is also provided with a plurality of mounting frames 4, the plurality of mounting frames 4 are uniformly arranged around the throwing channel 101, and the first end cover 2 and the plurality of mounting frames 4 can be integrally formed or can be fixed with the first end cover 2 in a welding mode.

Specifically, the rotating portion 3 is in the form of a roller having a rotation shaft thereon, and when the rotation shaft of the roller is fixed, the roller can rotate around the rotation shaft. The quantity of gyro wheel corresponds with the quantity of mounting bracket 4, and a plurality of gyro wheel alternates the setting around putting in passageway 101 and mounting bracket 4, and the both ends of the pivot of every gyro wheel are fixed with its two adjacent mounting brackets 4. During the feeding of the oil jacket into the mousehole 701 via the feeding channel 101, the circumferential side of the oil jacket is in contact with the circumferential side of the roller, so that the roller rotates about the rotation axis relative to the oil jacket along with the feeding action of the oil jacket, thereby assisting the feeding action of the oil jacket and simultaneously playing roles in reducing friction and guiding.

Further, referring to fig. 1 to fig. 4, in some embodiments of the rat hole protection wire set forth in the first embodiment of the present utility model, in a specific implementation, the rat hole protection wire further includes: the second end cover 5 is arranged on one side of the plurality of mounting frames 4, which is away from the first end cover 2, a second through hole is formed in the position, corresponding to the putting channel 101, of the second end cover 5, the second through hole is a polygonal hole, and the edges of the second through hole are in one-to-one correspondence with the plurality of rotating parts 3.

Specifically, in order to reduce the probability of collision between the oil jacket and the mounting frames 4 in the process of feeding the oil jacket into the rat hole 701 through the rat hole protection wire, in the technical scheme adopted by the utility model, one side of the plurality of mounting frames 4, which is away from the first end cover 2, is provided with the second end cover 5, the surface of the second end cover 5, which is close to the first end cover 2, is propped against the surface of each mounting frame 4, which is away from the first end cover 2, and the second end cover 5 can be connected with the first end cover 2 or the plurality of mounting frames 4 in a threaded connection mode. The second end cover 5 is provided with a second through hole with a polygonal hole shape at a position corresponding to the putting channel 101, and a plurality of edges of the hole opening correspond to the number and the positions of the rotating parts 3. The second end cap 5 may cover the mounting frame 4. Reduce the probability of colliding with between oil jacket pipe and the mounting bracket 4, can strengthen the structure of mounting bracket 4 simultaneously, avoid leading to the atress deformation of mounting bracket 4 when the circumference lateral part of oil gas pipe and the circumference lateral part contact of rotating portion 3.

Further, with reference to fig. 1 to 4, in some embodiments of the mousehole wire protector according to the first embodiment of the utility model, in a specific implementation, the circumferential side of each turning part 3 protrudes towards the inside of the launch channel 101 with respect to the edge of the second through hole.

Specifically, in order to reduce the probability of collision between the oil jacket and the edge of the second through hole in the process of feeding the oil jacket into the rat hole 701 through the rat hole guard, the utility model adopts the technical scheme that the circumferential side part of each roller protrudes towards the inside of the feeding channel 101 relative to the edge of the second through hole, so as to ensure that when the circumferential side part of the oil jacket contacts with the circumferential side part of the roller, the oil jacket cannot collide with the edge of the second through hole due to deflection in the feeding process.

Further, referring to fig. 1 to fig. 4, in some embodiments of the rat hole protection wire according to the first embodiment of the present utility model, in a specific implementation, the rat hole protection wire further includes: the support columns 6 are in one-to-one correspondence with the mounting frames 4 and extend in the same direction with the delivery cylinder 1 respectively, and two ends of each support column 6 in the extending direction are connected with the first end cover 2 and the second end cover 5 respectively.

Specifically, in order to realize connection between the first end cover 2 and the second end cover 5, in the technical scheme adopted by the utility model, the first end cover 2 and the second end cover 5 are fixedly connected through a plurality of support columns 6, the support columns 6 are uniformly arranged around a feeding channel and extend in the same direction as the feeding channel, and two ends of each support column 6 are respectively connected with the first end cover 2 and the second end cover 5 through threaded connectors. The plurality of support columns 6 can further strengthen the structural strength between the first end cover 2 and the second end cover 5 while connecting the first end cover 2 and the second end cover 5, and prevent the mounting frame 4 between the first end cover 2 and the second end cover 5 from being deformed under force.

Further, referring to fig. 1 to fig. 4, in some embodiments of the mousehole wire protector according to the first embodiment of the present utility model, in the specific implementation, the number of the rotating parts 3, the mounting frames 4 and the supporting columns 6 is four respectively; each mounting bracket 4 has two connecting portions arranged perpendicular to each other. Four mounting brackets 4 and four rotation portions 3 alternate each other and evenly distribute around the delivery channel 101, and the both ends of each rotation portion 3 are rotated respectively and are connected in the connecting portion of its two adjacent mounting brackets 4, and every support column 6 sets up between the contained angle that two connecting portions of its corresponding mounting bracket 4 formed.

Specifically, the number of the rotating parts 3, the mounting frames 4 and the supporting columns 6 is four respectively, the mounting frames 4 can be made by cutting angle irons or angle irons, and also can be made by machining forming, each mounting frame 4 is provided with a first connecting part 401 and a second connecting part 402 which are mutually perpendicular, the first connecting part 401 and the second connecting part 402 are respectively provided with mounting holes which are used for fixing the end parts of the rotating shafts of the rollers, the four mounting frames 4 and the four rotating parts 3 are mutually inserted and arranged and evenly distributed around the putting channel 101, the two ends of each connecting part are respectively connected with the mounting holes on the two connecting parts of the two adjacent mounting frames 4 in a rotating way, and each supporting column 6 is arranged between the included angles formed by the two connecting parts of the corresponding mounting frames 4.

Further, referring to fig. 1 to 4, in some embodiments of the mousehole wire protector according to the first embodiment of the utility model, the second through hole is a square hole, and an edge of the end of the second through hole facing away from the mounting frame 4 is chamfered.

Specifically, in order to make the second through hole have a guiding effect on the throwing of the oil sleeve, in the technical scheme adopted by the utility model, the second through hole is a square hole, the edge of the hole opening at the end part of the mounting frame 4 facing away from the extending direction of the second through hole is processed with a chamfer, and when the oil sleeve is aligned with the throwing channel 101 of the rat hole protection wire, the chamfer on the second through hole can have a guiding effect on the end part of the oil sleeve so that the oil sleeve stretches into the throwing channel 101 of the rat hole protection wire.

Further, in some embodiments of the mousehole wire protector according to the first embodiment of the utility model, in a specific implementation, the circumferential side portion of each rotating portion 3 is covered with a polyurethane protection layer.

Specifically, in order to further protect the end surface threads of the oil casing, in the technical scheme adopted by the utility model, the rollers adopt a rubber covered wheel mode, and the circumference side part of each roller is coated with a protective layer made of polyurethane material, so that the collision impact between the oil casing and the rotating part 3 in the process of feeding the oil casing into the rat hole 701 is further reduced.

Further, in some embodiments of the mousehole wire protector according to the first embodiment of the utility model, in a specific implementation, the dispensing barrel 1, the first end cover 2, the rotating part 3, the mounting frame 4, the second end cover 5 and the support column 6 are made of stainless steel materials.

Specifically, in order to reduce corrosion damage of environmental factors on an oil gas collection site to the rat hole protection wire, in the technical scheme adopted by the utility model, the throwing barrel 1, the first end cover 2, the rotating part 3, the mounting frame 4, the second end cover 5 and the support column 6 can be made of 304 stainless steel materials, so that corrosion of factors such as muddy water on the oil gas collection site to the rat hole protection wire is effectively avoided, and the service life of the rat hole protection wire is prolonged.

Example two

Referring to fig. 5, a second embodiment of the present utility model provides a drilling platform 7, where the drilling platform 7 includes: any one of the embodiments of the present utility model provides a rat hole wire.

Specifically, the rat hole thread protector is connected with the rat hole 701 on the drilling platform 7 through the putting cylinder 1 with the size adaptation of the rat hole 701 on the drilling platform 7, and the first end cover 2 arranged at the end part of the putting cylinder 1 abuts against the surface of the drilling platform 7 to limit the rat hole thread protector.

It should be noted that, in the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A mousehole wire guard for assisting in the insertion of an oil casing into a mousehole of a drilling platform, comprising:

the throwing barrel extends along a first direction, and a throwing channel which extends in the same direction and penetrates through two ends of the throwing barrel is arranged in the throwing barrel;

the first end cover is arranged at one end of the throwing barrel in the extending direction, and a first through hole with a shape and a size matched with the throwing channel is formed in a position corresponding to the throwing channel; and

the plurality of rotating parts encircle the putting channel and are positioned on one side, deviating from the putting barrel, of the first end cover, the plurality of rotating parts are respectively connected with the first end cover in a rotating mode, and when the oil sleeve passes through the putting channel, the circumference side part of each rotating part is tangent to the circumference side part of the oil sleeve.

2. A mousehole wire protector according to claim 1, further comprising:

the plurality of mounting frames encircle the putting channel and are fixed on one side of the first end cover, which is away from the putting cylinder, and the plurality of mounting frames are the same in number as the plurality of rotating parts and are arranged in a penetrating manner;

the rotating part is a roller, and two ends of each roller are respectively connected with the mounting frames on two sides of the roller in a rotating way.

3. A mousehole wire protector according to claim 2, further comprising:

the second end cover is arranged on one side, deviating from the first end cover, of the plurality of mounting frames, a second through hole is formed in the position, corresponding to the putting channel, of the second end cover, the second through hole is a polygonal hole, and the edges of the second through hole are in one-to-one correspondence with the plurality of rotating parts.

4. A mousehole wire protector according to claim 3, characterized in that,

the circumferential side of each of the rotating parts protrudes toward the inside of the putting channel with respect to the edge of the second through hole.

5. A mousehole wire guard according to claim 4 further comprising:

and the support columns are in one-to-one correspondence with the mounting racks and extend in the same direction with the throwing cylinder respectively, and two ends of each support column in the extending direction are connected with the first end cover and the second end cover respectively.

6. A mousehole wire protector according to claim 5, characterized in that,

the number of the rotating part, the mounting rack and the support columns is four respectively;

every the mounting bracket has two connecting portions that mutually perpendicular set up, four mounting brackets with four rotation portions alternate mutually and set up and around put in passageway evenly distributed, every rotation portion's both ends rotate respectively connect in its adjacent two the connecting portion of mounting bracket, every the support column set up in it corresponds between the contained angle that two connecting portions of mounting bracket formed.

7. A mousehole wire protector according to claim 6, characterized in that,

the second through hole is a square hole, and the edge of one end of the second through hole, which is away from the mounting frame, is provided with a chamfer.

8. A mousehole wire protector according to claim 2, characterized in that,

the circumference lateral part of every rotation portion cladding has polyurethane material inoxidizing coating.

9. A mousehole wire protector according to claim 5, characterized in that,

the throwing barrel, the first end cover, the rotating part, the mounting rack, the second end cover and the support column are made of stainless steel materials.

10. A drilling platform, comprising:

a mousehole wire protector according to any one of claims 1-9.