Spiral positioning device for casing pipe

Abstract

The utility model provides a spiral positioning device for a casing, and relates to the field of uranium mining. The sleeve positioning device is characterized in that a sleeve positioning body is tubular, a supporting structure is arranged on the outer wall of the sleeve positioning body, the supporting structure is connected with the sleeve positioning body, and a positioning groove is formed in the inner wall of the sleeve positioning body; the sleeve positioning body is provided with a positioning groove, the sealing ring is arranged in the positioning groove, the sealing ring is tightly pressed on the sleeve through a sealing fixing piece, and the sleeve positioning body is fixed on the sleeve through the sealing ring. According to the device, on one hand, the problem that an existing positioner is prone to bending and cannot position a sleeve is solved, and on the other hand, the problem that the size of the existing positioner cannot be adjusted so that the sleeve can enter the interior and the sleeve positioning body can be fixed to the sleeve is solved.

Description

Technical Field

[0001] The utility model relates to the field of uranium mining, in particular to a spiral positioning device for a casing. Background Art

[0002] In the existing uranium mining technology field, the iron hoop positioning method is generally used. When the casing is heavy, the iron hoop is easy to bend and cannot be used to position the casing. On the other hand, the iron hoop cannot be adjusted in size so that the casing can enter the interior and the casing positioning body can be fixed on the casing. Therefore, there is an urgent need for a spiral positioning device for the casing, which solves the problem that the existing iron hoop is easy to bend and cannot be used to position the casing, and solves the problem that the iron hoop cannot be adjusted in size so that the casing can enter the interior and the casing positioning body can be fixed on the casing. Utility Model Content

[0003] The purpose of the utility model is to provide a spiral positioning device for a casing to improve the above problem. In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] A spiral positioning device for a sleeve, comprising: a sleeve positioning body, the sleeve positioning body is tubular, a support structure is arranged on the outer wall of the sleeve positioning body, the support structure is connected to the sleeve positioning body, and a positioning groove is opened on the inner wall of the sleeve positioning body; a sealing ring, the sealing ring is arranged in the positioning groove, the sealing ring is pressed on the sleeve through a sealing fixing piece, and the sleeve positioning body is fixed to the sleeve through the sealing ring.

[0005] Preferably, the positioning groove is circumferentially arranged on the inner wall of the sleeve positioning body, the inner wall of the sealing ring is arranged in the positioning groove, a plurality of positioning holes are opened in the positioning groove, the sealing ring is opened with a sealing positioning hole, the sealing fixing piece passes through the positioning hole and is connected with the sealing positioning hole, and the sealing ring is pressed onto the sleeve by inserting the sealing fixing piece.

[0006] Preferably, the outer wall surface of the sealing ring is an annular protrusion.

[0007] Preferably, the outer wall surface of the sealing ring is a dot matrix.

[0008] Preferably, the outer wall surface of the sealing ring is a tooth-shaped structure.

[0009] Preferably, a gap groove with a trapezoidal cross-section is provided in the sealing ring, the trapezoidal parallel long sides of the gap groove correspond to the outer wall of the sealing ring, and the gap groove is connected to the sleeve via a trapezoidal fixing block.

[0010] Preferably, the support structure is a rib-shaped structure, the end surface of the rib-shaped structure is arc-shaped, the support structure is spirally arranged on the outer wall of the sleeve positioning body, and the helical angle of the support structure is an included angle.

[0011] Preferably, the sleeve positioning body is made of nylon.

[0012] Preferably, the inner wall of the support structure is provided with a support fixing hole, the sleeve positioning body is provided with a plurality of body fixing holes, a fastening screw passes through the body fixing hole, the fastening screw is connected to the support fixing hole, and the fastening screw fixes the support structure on the sleeve positioning body.

[0013] The beneficial effects of this structure are:

[0014] The utility model introduces a sealing ring and a sealing fixing part. The sleeve positioning body is tubular. When the sleeve positioning body positions the sleeve, the problem that the existing positioner is prone to bending and cannot position the sleeve is solved. The sealing ring is circumferentially arranged on the inner wall of the sleeve positioning body. The sealing fixing part presses the sealing ring onto the sleeve. The common arrangement of the sealing ring and the sealing fixing part fixes the sleeve positioning body on the sleeve, which solves the problem that the existing positioner cannot adjust its size so that the sleeve can enter the interior and the sleeve positioning body can be fixed on the sleeve.

[0015] Other features and advantages of the utility model will be described in the following description, and some of them will become obvious from the description, or be understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall device of the utility model;

[0018] Figure 2 This is a schematic diagram of the outer wall of the sealing ring of the utility model being an annular protrusion;

[0019] Figure 3 The outer wall of the sealing ring of the utility model is a dot matrix schematic diagram;

[0020] Figure 4 This is a schematic diagram of the tooth-shaped structure of the outer wall of the sealing ring of the utility model;

[0021] Figure 5 This is a schematic diagram of the matching structure between the sealing ring and the sleeve of the utility model;

[0022] Markings in the figure:

[0023] 1. Sleeve positioning body; 2. Support structure; 3. Sealing ring; 4. Sealing fixing piece; 5. Sleeve; 6. Trapezoidal fixing block; 13. Positioning hole; 14. Body fixing hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 As shown, a spiral positioning device for a sleeve comprises: the sleeve positioning body 1 is tubular, a support structure 2 is arranged on the outer wall of the sleeve positioning body 1, the support structure 2 is connected to the sleeve positioning body 1, and a positioning groove is opened on the inner wall of the sleeve positioning body 1; a sealing ring 3, the sealing ring 3 is arranged in the positioning groove, the sealing ring 3 is pressed on the sleeve 5 through the sealing fixing part 4, and the sleeve positioning body 1 is fixed on the sleeve 5 through the sealing ring 3.

[0027] In the utility model: the inner diameter of the casing positioning body 1 is larger than the outer diameter of the casing 5, the sealing ring 3 is circumferentially arranged in the middle of the inner diameter of the casing positioning body 1, the sealing ring 3 is made of flexible material, the casing 5 squeezes the sealing ring 3, the casing 5 passes through the sealing ring 3, the sealing ring 3 and the sealing fixing member 4 are jointly arranged to lock the casing positioning body 1 on the outer wall of the casing 5, on the one hand, the problem that the existing positioner is easy to bend and cannot position the casing 5 is solved, and on the other hand, the problem that the existing positioner cannot adjust the size so that the casing 5 can enter the interior and the casing positioning body 1 can be fixed on the casing 5 is solved. The upper and lower end faces of the casing positioning body 1 are truncated cone structures, and the truncated cone structure prevents the end faces from being too sharp to cause damage to the casing 5 and the operator, and the support structure 2 provides lateral support for the casing 5, ensuring that the casing 5 is centered in the wellbore position.

[0028] To clarify the specific arrangement of the sealing ring 3, the positioning groove is circumferentially arranged on the inner wall of the sleeve positioning body 1, the inner wall of the sealing ring 3 is arranged in the positioning groove, a plurality of positioning holes 13 are opened in the positioning groove, the sealing ring 3 is opened with a sealing positioning hole, the sealing fixing member 4 passes through the positioning hole 13 and is connected with the sealing positioning hole, and the sealing ring 3 is pressed on the sleeve 5 by inserting the sealing fixing member 4. Preferably, the sealing ring 3 is made of rubber, and the sealing positioning hole is a blind hole.

[0029] like Figure 2 As shown, the outer wall surface of the sealing ring 3 is an annular convex block. There are multiple annular convex blocks, which have good elasticity and can provide a channel for the sleeve 5 on the one hand and fit the sleeve 5 precisely on the other hand.

[0030] like Figure 3 As shown, the outer wall surface of the sealing ring 3 is a dot matrix. On the one hand, the dot matrix is ​​squeezed and deformed to provide a channel for the sleeve 5, and on the other hand, the dot matrix increases the contact area between the sealing ring 3 and the sleeve 5.

[0031] like Figure 4 As shown, the outer wall surface of the sealing ring 3 is a tooth-shaped structure. A tooth-shaped groove is formed between the tooth blocks. When the tooth blocks are squeezed, the tooth blocks are displaced into the tooth-shaped grooves, and the tooth-shaped structure is deformed to provide a passage for the sleeve 5.

[0032] like Figure 5As shown, a gap groove with a trapezoidal cross section is provided in the sealing ring 3, and the trapezoidal parallel long sides of the gap groove correspond to the outer wall of the sealing ring 3, and the gap groove is connected to the sleeve 5 through a trapezoidal fixing block 6. In the utility model, the trapezoidal fixing block 6 is relatively matched with the gap groove, and after the sleeve 5 passes through the sealing ring 3, the trapezoidal fixing block 6 is arranged in the gap groove, and the outer wall surface of the trapezoidal fixing block 6 contacts the sleeve, and the sealing ring 3 and the sleeve 5 both generate friction with the trapezoidal fixing block 6, making it difficult for the sleeve positioning body 1 to move on the outer wall of the sleeve 5.

[0033] The support structure 2 is a rib-shaped structure, and the end face of the rib-shaped structure is arc-shaped. The support structure 2 is spirally arranged on the outer wall of the casing positioning body 1, and the spiral angle of the support structure 2 is an angle. In this structure, the middle height of the support structure 2 is the same, and the upper and lower ends of the support structure 2 transition to the upper and lower end faces of the casing positioning body 1 in an arc shape. The end face and the upper and lower ends of the support structure 2 are both provided with arcs, which facilitate the assistance of the casing 5 to enter the well wall. The axis of the support structure 2 and the casing positioning body 1 is usually at an angle of 30°, which reduces the risk of the casing 5 being stuck during the process of going down the well. Preferably, the support structure 2 and the casing positioning body 1 are an integral structure.

[0034] In the present invention, the casing positioning body 1 is made of nylon material. On the one hand, the casing positioning body 1 is made of nylon material, which has certain flexibility. On the other hand, the casing positioning body 1 is made of nylon material, which effectively solves the problem of chemical corrosion of traditional metal casings underground.

[0035] In order to clarify the specific structure of the support structure 2, the inner wall of the support structure 2 is provided with a support fixing hole, and the sleeve positioning body 1 is provided with a plurality of body fixing holes 14. The fastening screws pass through the body fixing holes 14. The fastening screws are connected to the support fixing holes, and the fastening screws fix the support structure 2 on the sleeve positioning body 1.

[0036] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A spiral positioning device for a casing, characterized in that: include: A sleeve positioning body (1), the sleeve positioning body (1) is tubular, a support structure (2) is arranged on the outer wall of the sleeve positioning body (1), the support structure (2) is connected to the sleeve positioning body (1), and a positioning groove is arranged on the inner wall of the sleeve positioning body (1); A sealing ring (3), the sealing ring (3) is arranged in the positioning groove, the sealing ring (3) is pressed against the sleeve (5) through a sealing fixing member (4), and the sleeve positioning body (1) is fixed on the sleeve (5) through the sealing ring (3).

2. The spiral positioning device for casing according to claim 1, characterized in that: The positioning groove is circumferentially arranged on the inner wall of the sleeve positioning body (1); the inner wall of the sealing ring (3) is arranged in the positioning groove; a plurality of positioning holes (13) are opened in the positioning groove; the sealing ring (3) is opened with a sealing positioning hole; the sealing fixing member (4) passes through the positioning hole (13) and is connected to the sealing positioning hole; the sealing ring (3) is pressed onto the sleeve (5) by inserting the sealing fixing member (4).

3. The spiral positioning device for casing according to claim 2, characterized in that: The outer wall surface of the sealing ring (3) is an annular protrusion.

4. The spiral positioning device for casing according to claim 2, characterized in that: The outer wall surface of the sealing ring (3) is a dot matrix.

5. The spiral positioning device for casing according to claim 2, characterized in that: The outer wall surface of the sealing ring (3) is a tooth-shaped structure.

6. The spiral positioning device for casing according to claim 2, characterized in that: The sealing ring (3) is provided with a gap groove with a trapezoidal cross section, the parallel long sides of the trapezoid of the gap groove correspond to the outer wall of the sealing ring (3), and the gap groove is connected to the sleeve (5) via a trapezoidal fixing block (6).

7. The spiral positioning device for casing according to claim 1, characterized in that: The support structure (2) is a rib-shaped structure, the end surface of the rib-shaped structure is arc-shaped, the support structure (2) is spirally arranged on the outer wall of the sleeve positioning body (1), and the spiral angle of the support structure (2) is an included angle.

8. The spiral positioning device for casing according to claim 1, characterized in that: The sleeve positioning body (1) is made of nylon.

9. The spiral positioning device for casing according to claim 2, characterized in that: The inner wall of the support structure (2) is provided with a support fixing hole, the sleeve positioning body (1) is provided with a plurality of body fixing holes (14), a fastening screw passes through the body fixing hole (14), the fastening screw is connected to the support fixing hole, and the fastening screw fixes the support structure (2) on the sleeve positioning body (1).

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