Clamping and sealing device for tubular column
By employing inclined clamping teeth and sealing cores in the clamping device, the problem of existing devices only being able to lock in one direction is solved, achieving bidirectional locking and sealing of the tubular connection equipment, thus improving safety and preventing equipment damage.
Patent Information
- Application Number
- CN202520214531.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing clamping devices can only achieve unidirectional locking and cannot prevent the relative movement of the connected equipment along the pipe column, which can easily lead to safety accidents and equipment damage.
A clamping and sealing device was designed, which uses inclined first and second clamping teeth to bite into the outer surface of the tubing to achieve bidirectional locking, preventing the connected equipment from moving up and down along the tubing, and achieving sealing through a sealing core.
It achieves bidirectional locking of the tubular connection equipment, avoids relative movement, improves safety and sealing, and prevents equipment damage.
Smart Images
Figure CN223824936U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to oil and gas equipment technical field, specifically, relate to a clamping sealing device for pipe column. BACKGROUND
[0002] In some processes of oil or natural gas exploitation, it is usually required to clamp part of connecting equipment with pipe column through clamping device for a long time to prevent relative movement between connecting equipment and pipe column, so as to facilitate the process of exploitation. The existing clamping device mostly only has the function of one-way locking, that is, only the upward movement of connecting equipment along the pipe column or only the sinking of connecting equipment along the pipe column can be prevented, which is extremely easy to cause safety accidents and damage to connecting equipment. SUMMARY
[0003] One purpose of the utility model is to provide a clamping sealing device for pipe column, which can clamp into the outer surface of the pipe column through the inclined first clamping teeth and second clamping teeth, realize the bidirectional locking of the pipe column, prevent the relative movement between the clamping sealing device and the connecting equipment thereon and the pipe column, and avoid the upward movement and sinking of the connecting equipment along the pipe column at the same time.
[0004] According to the utility model, a clamping sealing device for pipe column is provided, which comprises: a first clamping body and a second clamping body connected with the first clamping body, the first clamping body and the second clamping body both have a clamping part for clamping with the outer wall of the pipe column, the clamping part has a separation groove, the separation groove has first clamping teeth and second clamping teeth on both sides in the axial direction of the pipe column, the first clamping teeth extend upward or downward in an inclined manner, and the second clamping teeth are opposite to the extension direction of the first clamping teeth.
[0005] In a preferred embodiment, the clamping part is configured in the form of an arc surface, and the separation groove extends in the form of an arc line.
[0006] In a preferred embodiment, the first clamping body and the second clamping body have a first clamping disc and a second clamping disc respectively at the upper part of the clamping part, the first clamping disc and the second clamping disc respectively have a first matching part configured in the form of a semicircular arc, the first matching part is integrally connected with the clamping part, the first matching part is in contact with the outer surface of the pipe column, and a sealing core is arranged between the first matching part and the pipe column.
[0007] In a preferred embodiment, a first abutting part is formed by extending radially outward on both sides of the first matching part, and the first abutting parts of the first clamping disc and the second clamping disc abut each other.
[0008] In a preferred embodiment, the first clamping body and the second clamping body each have a second abutting portion extending radially outward on both sides of the clamping portion, the second abutting portions of the two abutting portions abutting each other, and each of the second abutting portions is integrally formed with the first abutting portion.
[0009] In a preferred embodiment, the upper end of the first mating portion has a step for accommodating the sealing core.
[0010] In a preferred embodiment, the sealant core is configured as an annular shape, and the step is configured as an annular shape.
[0011] In a preferred embodiment, the second abutting portion of the first clamping body and the second abutting portion of the second clamping body are fixedly connected by fasteners.
[0012] In a preferred embodiment, the fasteners are evenly distributed on the second abutment portions of the first clamping body and the second clamping body.
[0013] In a preferred embodiment, the clamping and sealing device for the tubing column further includes a stud and a nut threadedly connected to the stud, wherein the stud and nut are evenly distributed circumferentially on the first clamping disc and the second clamping disc.
[0014] This utility model has at least the following technical effects:
[0015] According to this utility model, a first clamping body and a second clamping body connected to the first clamping body are provided. Both the first and second clamping bodies have clamping portions that engage with the outer wall of the tube column, and the clamping portions have partition grooves. Since the partition groove has a first clamping tooth and a second clamping tooth on both sides along the axial direction of the tube column, the first clamping tooth extends obliquely upwards or downwards, and the second clamping tooth extends in the opposite direction to the first clamping tooth. Therefore, under external force, the oblique first and second clamping teeth can bite into the outer surface of the tube column, achieving bidirectional locking of the tube column and preventing relative movement between the clamping sealing device and its connecting equipment and the tube column. This also prevents the connecting equipment from moving upwards or downwards along the tube column. Furthermore, the partition groove separates the areas where the first and second clamping teeth are located, thus facilitating the processing of the first and second clamping teeth.
[0016] According to this utility model, the first clamping disc and the second clamping disc each have a first mating part constructed in a semi-circular arc shape and the first mating part is integrally connected with the clamping part. The first mating part is in contact with the outer surface of the tube column, and a sealing core is provided between the two semi-circular arc-shaped first mating parts and the tube column, so that the clamping and sealing device can achieve sealing at the interface with the tube column. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of a clamping and sealing device for a tubular column according to an embodiment of the present invention is shown.
[0018] Figure 2 A schematic diagram of the structure of the first clamping body according to the present invention is shown;
[0019] Figure 3 A schematic diagram of the clamping part according to an embodiment of the present invention is shown.
[0020] Figure 4 A schematic front view of the overall structure of a clamping and sealing device for a tubular column according to an embodiment of the present invention is shown.
[0021] Figure 5 schematically shown Figure 2 A schematic diagram of the cross-sectional structure at point AA.
[0022] In this application, all the accompanying drawings are schematic drawings, used only to illustrate the principle of the present invention, and are not drawn to scale. Detailed Implementation
[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] In the description of the utility model, it should be understood that the terms "above", "side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] like Figure 1 , Figure 2 as well asFigure 3 As shown, the clamping and sealing device 100 for a tubular column according to this utility model includes: a first clamping body 3 and a second clamping body 5 connected to the first clamping body 3. The first clamping body 3 and the second clamping body 5 have the same structure, clamping the tubular column between them. Both the first clamping body 3 and the second clamping body 5 have a clamping portion 321 that engages with the outer wall of the tubular column 4. The clamping portion 321 is constructed in an arc shape and has a dividing groove a extending in an arc shape in the middle. It also has a first clamping tooth 41 and a second clamping tooth 42 on both sides along the axial direction of the tubular column 4. The first clamping tooth 41 extends obliquely upward or obliquely downward relative to the axial direction of the tubular column 4, and the second clamping tooth 42 extends in the opposite direction to the first clamping tooth 41. The plurality of first clamping teeth 41 and second clamping teeth 42 form an arc-shaped clamping surface.
[0027] According to this utility model, a first clamping body 3 and a second clamping body 5 connected to the first clamping body 3 are provided. Both the first clamping body 3 and the second clamping body 5 have a clamping portion 321 that engages with the outer wall of the tube column, and the clamping portion 321 has a partition groove a. Since the partition groove a has a first clamping tooth 41 and a second clamping tooth 42 on both sides along the axial direction of the tube column 4, the first clamping tooth 41 extends obliquely upward or obliquely downward, and the second clamping tooth 42 extends in the opposite direction to the first clamping tooth 41, it is possible to achieve bidirectional locking of the tube column 4 by the oblique first clamping tooth 41 and the second clamping tooth 42 biting into the outer surface of the tube column 4 under the action of external force, preventing relative movement between the clamping sealing device 100 and its connecting equipment and the tube column 4, and preventing the connecting equipment from moving up and down along the tube column 4. In addition, the partition groove a separates the areas where the first clamping tooth 41 and the second clamping tooth 42 are located, thereby facilitating the processing of the first clamping tooth 41 and the second clamping tooth 42.
[0028] like Figure 4 as well as Figure 5 As shown, in one or more embodiments, the first clamping body 3 and the second clamping body 5 respectively have a first clamping disc 31 and a second clamping disc 51 in the upper part of the clamping portion 321. The first clamping disc 31 and the second clamping disc 51 each have a first mating portion 311 configured in a semi-circular arc shape. The first mating portion 311 is integrally connected to the clamping portion 321, and the clamping portion 321 extends downward from the lower end of the first mating portion 311 along the axial direction of the column 4. Both semi-circular arc-shaped first mating portions 311 are in contact with the outer surface of the column 4, and a sealing core 6 is provided between the two semi-circular arc-shaped first mating portions 311 and the column 4.
[0029] According to this utility model, the first clamping disc 31 and the second clamping disc 51 each have a first mating part 311 constructed in a semi-circular arc shape, and the first mating part 311 is integrally connected with the clamping part 321. The first mating part 311 is in contact with the outer surface of the tube column 4, and a sealing core 6 is provided between the two semi-circular arc-shaped first mating parts 311 and the tube column 4, so that the clamping sealing device 100 can achieve sealing at the interface with the tube column 4.
[0030] In one or more embodiments, the upper end of the first mating portion 311 has a step 61 for receiving the sealing core 6. Optionally, the sealing core 6 is configured as annular, and the step 61 is configured as annular.
[0031] In one or more embodiments, first abutting portions 312 are formed on both sides of the first mating portion 311 extending radially outward, and the first abutting portions 312 of the first clamping plate 31 and the second clamping plate 51 abut against each other.
[0032] In one or more embodiments, the first clamping body 3 and the second clamping body 5 each have a second abutting portion 322 extending radially outward on both sides of the clamping portion 321. The second abutting portion 322 of the first clamping body 3 abuts against the second abutting portion 322 of the second clamping body 5, and the second abutting portion 322 of each is integrally formed with the first abutting portion 312.
[0033] In one or more embodiments, the second abutting portion 322 of the first clamping body 3 and the second abutting portion 322 of the second clamping body 5 are fixedly connected by fasteners.
[0034] In one or more embodiments, the fastener can fasten a stud 8 and a fastening nut 7, the stud 8 passing through the second abutment portion 322 of the first clamping body 3 and the second abutment portion 322 of the second clamping body 5 and being threadedly connected to the fastening nut 7.
[0035] In one or more embodiments, the fasteners are evenly arranged on the second abutment portion 322 of the first clamping body 3 and the second clamping body 5.
[0036] In one or more embodiments, the clamping and sealing device 100 for tubular columns according to the present invention further includes a stud 1 and a nut 2 threadedly connected to the stud 1. The stud 1 and the nut 2 are evenly distributed circumferentially on the first clamping plate 31 and the second clamping plate 51 for connecting external connecting devices to the clamping and sealing device 100.
[0037] When the clamping and sealing device 100 for the tubing column described in this utility model is connected to the tubing column 4, the connecting studs 1 and connecting nuts 2 on the first clamping disc 31 and the second clamping disc 51 are matched with the pre-drilled threaded holes. Then, the fastening studs 8 are passed through the second abutment portion 322 of the first clamping body 3 and the second abutment portion 322 of the second clamping body 5 and threadedly connected to the fastening nuts 7, thereby achieving the clamping operation of the tubing column. When it is necessary to lock the tubing column, the fastening nuts 7 are tightened to an appropriate degree.
[0038] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A clamping and sealing device for a tubular column, characterized in that, include: A first clamping body and a second clamping body connected to the first clamping body, both the first clamping body and the second clamping body have a clamping part that engages with the outer wall of the tubing column. The clamping part has a partition groove. The partition groove has a first clamping tooth and a second clamping tooth on both sides along the axial direction of the tubing column, respectively. The first clamping tooth extends obliquely upward or obliquely downward, and the second clamping tooth extends in the opposite direction to the first clamping tooth.
2. The clamping and sealing device for tubular columns according to claim 1, characterized in that, The clamping part is configured in an arc shape and the dividing groove extends in an arc shape.
3. The clamping and sealing device for a tubular column according to claim 1 or 2, characterized in that, The first clamping body and the second clamping body have a first clamping plate and a second clamping plate respectively on the upper part of the clamping part. The first clamping plate and the second clamping plate each have a first mating part constructed in a semi-circular arc shape. The first mating part is integrally connected with the clamping part. The first mating part is in contact with the outer surface of the tube column, and a sealing core is provided between the first mating part and the tube column.
4. The clamping and sealing device for tubular columns according to claim 3, characterized in that, First abutting portions are formed on both sides of the first mating portion, extending radially outward, and the first abutting portions of the first clamping disc and the second clamping disc abut against each other.
5. The clamping and sealing device for a tubular column according to claim 4, characterized in that, The first clamping body and the second clamping body each have a second abutting portion extending radially outward on both sides of the clamping portion. The second abutting portions of the two bodies abut against each other, and each of the second abutting portions is integrally formed with the first abutting portion.
6. The clamping and sealing device for a tubular column according to claim 3, characterized in that, The upper end of the first mating part has a step for accommodating the sealing core.
7. The clamping and sealing device for a tubular column according to claim 6, characterized in that, The sealing core is constructed in a ring shape, and the step is constructed in a ring shape.
8. The clamping and sealing device for a tubular column according to claim 5, characterized in that, The second abutting part of the first clamping body and the second abutting part of the second clamping body are fixedly connected by fasteners.
9. The clamping and sealing device for a tubular column according to claim 8, characterized in that, The fasteners are evenly arranged on the second abutment portion of the first clamping body and the second clamping body.
10. The clamping and sealing device for a tubular column according to claim 1, characterized in that, It also includes studs and nuts threadedly connected to the studs, the studs and nuts being evenly distributed circumferentially on the first clamping plate and the second clamping plate.