Combined slip for polish rod

Abstract

The utility model provides a combined type slip for a polish rod. The combined type slip comprises a first slip shell and a second slip shell which are detachably connected. A first limiting groove is formed in the first slip shell, and a first slip piece is detachably installed in the first limiting groove. A second limiting groove is formed in the second slip shell, and a second slip piece is detachably installed in the second limiting groove. The first slip piece and the second slip piece are used for being jointly hooped on the polish rod so as to position the polish rod. The device is simple in structure and convenient to use, the diameter of the combined type slip for the polish rod can be adjusted by replacing the first slip piece and the second slip piece, and therefore the combined type slip is suitable for polish rods of different sizes, and the application range is wide.

Description

Technical Field

[0001] This application relates to the field of downhole operations, and more particularly to a combined slip for a polished rod. Background Technology

[0002] The slipper rod clamp is a key component that holds the slipper rod in place to prevent it from falling. Conventional clamps have fixed sizes and their diameters cannot be adjusted. When special situations require the use of slipper rods with larger diameters, such as 1-inch or 1.5-inch hollow sucker rods, conventional sucker rod clamps cannot meet the requirements. Utility Model Content

[0003] One of the purposes of this application is to provide a combined slip for a polished rod, which aims to solve the problem that existing sucker rod slips have a narrow range of applications.

[0004] The technical solution of this application is:

[0005] A composite locking mechanism for a light pole includes a first locking shell and a second locking shell that are detachably connected. The first locking shell has a first limiting groove, in which a first locking piece is detachably installed. The second locking shell has a second limiting groove, in which a second locking piece is detachably installed. The first locking piece and the second locking piece are used to clamp together on the light pole to position the light pole.

[0006] As one technical solution of this application, the first slip shell has two first connecting ears arranged vertically and horizontally at one end, and the second slip shell has a second connecting ear at one end; the second connecting ear is disposed between the two first connecting ears; the first connecting ears and the second connecting ear are connected by a positioning pin.

[0007] As one technical solution of this application, the other end of the first slip shell has a U-shaped snap-fit ​​groove; the other end of the second slip shell has a T-bolt; one end of the T-bolt is fastened to the U-shaped snap-fit ​​groove by a nut head.

[0008] As one technical solution of this application, the first limiting groove has a first arc-shaped bottom plate, a first arc-shaped side plate, and a first arc-shaped top plate connected in sequence; the first arc-shaped bottom plate and the first arc-shaped top plate are respectively arranged parallel to each other at the top and bottom of the inner surface of the first arc-shaped side plate; the inner top surface of the first arc-shaped bottom plate and the inner surface of the first arc-shaped side plate are set at an obtuse angle; the inner bottom surface of the first arc-shaped top plate and the inner surface of the first arc-shaped side plate are set at an included angle.

[0009] As one technical solution of this application, the first slip has an arc-shaped structure and has a first upper surface, a first outer surface and a first lower surface connected in sequence; the first upper surface and the first outer surface are set at an angle; the first outer surface and the first lower surface are set at an obtuse angle.

[0010] As one technical solution of this application, the second limiting groove has a second arc-shaped bottom plate, a second arc-shaped side plate and a second arc-shaped top plate connected in sequence; the second arc-shaped bottom plate and the second arc-shaped top plate are respectively arranged parallel to each other at the top and bottom of the inner surface of the second arc-shaped side plate; the inner top surface of the second arc-shaped bottom plate and the inner surface of the second arc-shaped side plate are set at an obtuse angle; the inner bottom surface of the second arc-shaped top plate and the inner surface of the second arc-shaped side plate are set at an included angle.

[0011] As one technical solution of this application, the second slip has an arc-shaped structure and has a second upper surface, a second outer surface and a second lower surface connected in sequence; the second upper surface and the second outer surface are set at an angle; the second outer surface and the second lower surface are set at an obtuse angle.

[0012] As a technical solution of this application, the first slip plate is provided with a plurality of first through holes that penetrate the top and bottom at intervals, and the top and bottom of the first limiting groove are provided with a plurality of first positioning holes that match the first through holes; the first through holes and the corresponding first positioning holes are connected by a first spring and a first pin; the first spring is sleeved on the lower part of the first pin, and its top and bottom respectively abut against the first slip plate and the first positioning hole at the bottom of the first limiting groove.

[0013] As one technical solution of this application, the second slip is provided with a plurality of second through holes that penetrate the top and bottom at intervals, and the top and bottom of the second limiting groove are provided with a plurality of second positioning holes that match the second through holes; the second through holes and the corresponding second positioning holes are connected by a second spring and a second pin; the second spring is sleeved on the lower part of the second pin, and its top and bottom respectively abut against the second slip and the second positioning hole at the bottom of the second limiting groove.

[0014] The beneficial effects of this application are:

[0015] This device can adjust the diameter of the positioning cavity formed by the first and second clamping plates by replacing and installing different sizes of first and second clamping plates, thus making it suitable for clamping and positioning of optical rods of different diameters, especially meeting the requirements of 1-inch and 1.5-inch optical rods. Therefore, the device has a simple structure, is easy to use, and can adjust the diameter of the combined clamping plates for optical rods by replacing the first and second clamping plates, thus being suitable for optical rods of different sizes and having a wide range of applications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a combined clamp for a smooth rod provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the first angle of the combined locking mechanism for the optical rod provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram showing the connection between the combined locking device for the optical rod and the optical rod, as provided in an embodiment of this application.

[0020] Icons: 1-First locking shell; 2-Second locking shell; 3-First limiting groove; 4-First locking piece; 5-Second limiting groove; 6-Second locking piece; 7-Smooth rod; 8-First connecting ear; 9-Second connecting ear; 10-Positioning pin; 11-U-shaped snap-fit ​​groove; 12-T-bolt; 13-First arc-shaped base plate; 14-First arc-shaped side plate; 15-First arc-shaped top plate; 16-First upper surface; 17-First outer surface; 18-First lower surface; 19-First through hole; 20-First positioning hole; 21-First spring; 22-First pin; 23-Nut head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this application and to simplify 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. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, in this application, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Moreover, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Example:

[0029] Please refer to Figure 1(Refer to) Figure 2 and Figure 3 This application provides a combined locking mechanism for a light rod, which mainly includes a detachably connected first locking shell 1 and a second locking shell 2. The first locking shell 1 has a first limiting groove 3, in which a first locking piece 4 is detachably installed. Simultaneously, the second locking shell 2 has a second limiting groove 5, in which a second locking piece 6 is detachably installed. The first limiting groove 3 and the second limiting groove 5 are arranged facing each other, together forming a limiting cavity for locking and limiting the light rod 7. Furthermore, the first locking piece 4 and the second locking piece 6 are used to clamp the light rod 7 together for positioning. By installing first locking pieces 4 of different sizes in the first limiting groove 3 and second locking pieces 6 of different sizes in the second limiting groove 5, the diameter of the limiting cavity can be adjusted to accommodate light rods 7 of different sizes, especially meeting the requirements for 1-inch and 1.5-inch light rods 7.

[0030] Furthermore, the first slip housing 1 has two first connecting ears 8 arranged parallel to each other at one end, and the second slip housing 2 has a second connecting ear 9 at one end; the second connecting ear 9 is located between the two first connecting ears 8; the first connecting ears 8 and the second connecting ear 9 are connected by a locating pin 10. Meanwhile, the other end of the first slip housing 1 has a U-shaped locking groove 11; the other end of the second slip housing 2 has a T-bolt 12; one end of the T-bolt 12 is fastened to the U-shaped locking groove 11 by a nut head 23. When it is necessary to open the first slip housing 1 and the second slip housing 2, simply remove the nut head 23 and loosen the T-bolt 12 and the locating pin 10.

[0031] Furthermore, the first limiting groove 3 has a first arc-shaped bottom plate 13, a first arc-shaped side plate 14, and a first arc-shaped top plate 15 connected in sequence; wherein, the first arc-shaped bottom plate 13 and the first arc-shaped top plate 15 are respectively arranged parallel and spaced apart at the top and bottom of the inner surface of the first arc-shaped side plate 14; and, the inner top surface of the first arc-shaped bottom plate 13 and the inner surface of the first arc-shaped side plate 14 are set at an obtuse angle; the inner bottom surface of the first arc-shaped top plate 15 and the inner surface of the first arc-shaped side plate 14 are set at an included angle. Meanwhile, the first latch 4 has an arc-shaped structure and has a first upper surface 16, a first outer surface 17, and a first lower surface 18 connected in sequence; the first upper surface 16 and the first outer surface 17 are set at an included angle; the first outer surface 17 and the first lower surface 18 are set at an obtuse angle.

[0032] Furthermore, the second limiting groove 5 has a second arc-shaped bottom plate, a second arc-shaped side plate, and a second arc-shaped top plate connected in sequence; wherein the second arc-shaped bottom plate and the second arc-shaped top plate are respectively arranged parallel to each other at the top and bottom of the inner surface of the second arc-shaped side plate; and the inner top surface of the second arc-shaped bottom plate is set at an obtuse angle with the inner surface of the second arc-shaped side plate; the inner bottom surface of the second arc-shaped top plate is set at an included angle with the inner surface of the second arc-shaped side plate. Meanwhile, the second latch 6 has an arc-shaped structure and has a second upper surface, a second outer surface, and a second lower surface connected in sequence; the second upper surface and the second outer surface are set at an included angle; the second outer surface and the second lower surface are set at an obtuse angle.

[0033] This design allows the first limiting groove 3 to have a certain taper, meaning the diameter of the lower cavity of the first limiting groove 3 is smaller than the diameter of its upper cavity. This provides further support and limiting for the first locking piece 4 installed inside, preventing it from falling down. It provides better support and limiting for the optical rod 7, further improving the stability of the optical rod 7 installation. Simultaneously, because the first locking piece 4 also has a certain taper (the diameter of the lower cavity is smaller than the diameter of the upper cavity), it provides further support and limiting for the optical rod 7. If the optical rod 7 is under a large load, it will become increasingly tight due to downward gravity during operation. The taper design of the first locking piece 4 provides upward support for the optical rod 7, ensuring it does not fall downwards, thus achieving a double limiting effect for the optical rod 7.

[0034] Furthermore, the first locking plate 4 has multiple through holes 19 spaced apart from the top and bottom. The first arc-shaped bottom plate 13 and the first arc-shaped top plate 15 each have multiple first positioning holes 20 that match the through holes 19. The first through holes 19 and the corresponding first positioning holes 20 on the first arc-shaped bottom plate 13 and the corresponding first positioning holes 20 on the first arc-shaped top plate 15 are connected by a first spring 21 and a first pin 22. The first pin 22 is sequentially connected to the corresponding first positioning holes 20, the first through holes 19 on the first arc-shaped top plate 15 and the corresponding first positioning holes 20 on the first arc-shaped bottom plate 13. The first spring 21 is sleeved on the lower part of the first pin 22, and its top and bottom abut against the first positioning hole 20 at the bottom of the first locking plate 4 and the first positioning groove 3, respectively. Meanwhile, the second slip plate 6 is provided with multiple second through holes that penetrate the top and bottom at intervals. The second arc-shaped bottom plate and the second arc-shaped top plate are provided with multiple second positioning holes that match the second through holes. The second through holes and the corresponding second positioning holes on the second arc-shaped bottom plate and the corresponding second positioning holes on the second arc-shaped top plate are connected by a second spring and a second pin. The second pin is sequentially connected to the corresponding second positioning hole, the second through hole on the second arc-shaped top plate and the corresponding second positioning hole on the second arc-shaped bottom plate. The second spring is sleeved on the lower part of the second pin, and its top and bottom abut against the second positioning hole at the bottom of the second slip plate 6 and the second positioning groove 5, respectively.

[0035] By fitting a first spring 21 on the lower part of the first pin 22 and a second spring on the lower part of the second pin, both the first spring 21 and the second spring are compressed, thus both exert an upward supporting force on the first locking piece 4 and the second locking piece 6. This ensures that the first locking piece 4 is tightly installed in the cavity of the first limiting groove 3 without falling downward, and that the second locking piece 6 is tightly installed in the cavity of the second limiting groove 5 without falling downward.

[0036] In summary, this device can adjust the diameter of the positioning cavity formed by the first clamping plate 1 and the second clamping plate 2 by replacing and installing different sizes of the first clamping plate 4 and the second clamping plate 6, thereby making it suitable for clamping and positioning of optical rods 7 with different diameters, especially meeting the requirements of 1-inch and 1.5-inch optical rods 7. Therefore, the device has a simple structure, is easy to use, and can adjust the diameter of the combined clamping plate for the optical rod by replacing the first clamping plate 4 and the second clamping plate 6, thus being suitable for optical rods 7 of different sizes and having a wide range of applications.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A combination slip for a polished rod, characterized by, The utility model provides a detachable first slip bowl and second slip bowl, a first limiting groove is formed on the first slip bowl, a first slip piece is detachably installed in the first limiting groove, a second limiting groove is formed on the second slip bowl, a second slip piece is detachably installed in the second limiting groove, the first slip piece and the second slip piece are used for jointly clamping on a polished rod to position the polished rod, the first limiting groove has a first arc bottom plate, a first arc side plate and a first arc top plate connected in sequence, the first arc bottom plate and the first arc top plate are respectively arranged in parallel and spaced apart at the top and bottom of the inner surface of the first arc side plate, the inner top surface of the first arc bottom plate and the inner surface of the first arc side plate are arranged at an obtuse angle, the inner bottom surface of the first arc top plate and the inner surface of the first arc side plate are arranged at an included angle, the first slip piece has a first upper surface, a first outer surface and a first lower surface connected in sequence and arranged in an arc shape, the first upper surface and the first outer surface are arranged at an included angle, the first outer surface and the first lower surface are arranged at an obtuse angle, the second limiting groove has a second arc bottom plate, a second arc side plate and a second arc top plate connected in sequence, the second arc bottom plate and the second arc top plate are respectively arranged in parallel and spaced apart at the top and bottom of the inner surface of the second arc side plate, the inner top surface of the second arc bottom plate and the inner surface of the second arc side plate are arranged at an obtuse angle, the inner bottom surface of the second arc top plate and the inner surface of the second arc side plate are arranged at an included angle, the second slip piece has a second upper surface, a second outer surface and a second lower surface connected in sequence and arranged in an arc shape, the second upper surface and the second outer surface are arranged at an included angle, and the second outer surface and the second lower surface are arranged at an obtuse angle.

2. The combination slip for a polish rod as defined in claim 1, wherein One end of the first slip bowl is provided with two first connecting ears arranged in parallel and spaced apart, one end of the second slip bowl is provided with a second connecting ear, the second connecting ear is arranged between the two first connecting ears, and the first connecting ear and the second connecting ear are connected through a positioning pin.

3. The combination slip for a polish rod as defined in claim 1, wherein The other end of the first slip bowl is provided with a U-shaped clamping groove, the other end of the second slip bowl is provided with a T-shaped bolt, and one end of the T-shaped bolt is fastened to the U-shaped clamping groove through a nut head.

4. The combination slip for a polish rod as defined in claim 1, wherein A plurality of first through holes penetrating the top and bottom are formed in the first slip piece in a spaced apart manner, a plurality of first positioning holes matched with the first through holes are formed on the top and bottom of the first limiting groove, the first through hole and the corresponding first positioning hole are connected through a first spring and a first pin, the first spring is sleeved on the lower part of the first pin, and the top and bottom are respectively abutted between the first positioning hole of the first slip piece and the first limiting groove bottom.

5. The combination slip for a polish rod as defined in claim 1, wherein, The second slip piece is provided with a plurality of second through holes penetrating the top and bottom at intervals, and a plurality of second positioning holes matching the second through holes are provided on the top and bottom of the second limiting groove; the second through hole and the corresponding second positioning hole are connected by a second spring and a second pin; the second spring is sleeved on the lower part of the second pin, and the top and bottom are respectively abutted between the second positioning hole of the second slip piece and the second limiting groove bottom.

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