Magnesium alloy bridge plug device
By setting a clamping fixing component on the magnesium alloy bridge plug device, and utilizing worm gear transmission and push-pull rod structure, the problem of low installation efficiency of the mounting head and external sleeve in the prior art is solved, and a rapid installation and disassembly process is achieved.
Patent Information
- Application Number
- CN202520372216.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing magnesium alloy bridge plug devices are fixed by multiple bolts during installation, resulting in low efficiency in disassembly and assembly between the mounting head and the external mounting sleeve, making quick disassembly and assembly impossible.
The mounting system employs a clamping fixing assembly, including a moving groove and a moving block on the mounting head. Through worm gear transmission and a push-pull rod structure, it enables quick fixing and disassembly of the mounting sleeve, and utilizes a hexagonal groove in conjunction with a hexagonal wrench for operation.
It improves the efficiency of disassembly and assembly between the bridge plug device and the external mounting sleeve, enabling quick installation and disassembly, and making it more convenient and faster to use.
Smart Images

Figure CN223794145U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bridge plug devices, specifically relating to a device for a magnesium alloy bridge plug. Background Technology
[0002] A bridge plug is a device used in oil and gas wells and other types of wells. It is mainly used to temporarily or permanently seal the wellbore. For example, during well fluid control, a bridge plug can be used to control the fluid in the well and prevent well fluid from gushing out or leaking. In order to reduce the load on the lifting equipment and reduce transportation and operating costs, it is usually made of aluminum alloy.
[0003] The existing magnesium alloy bridge plug device has the following disadvantages during use:
[0004] During installation, one end of the sleeve is typically fitted onto the mounting head of the bridge plug and secured with multiple bolts. This installation method prevents the bridge plug mounting head from being quickly disassembled from the external mounting sleeve, significantly reducing assembly or disassembly efficiency. Therefore, a magnesium alloy bridge plug device is needed. Utility Model Content
[0005] The purpose of this invention is to provide a device for a magnesium alloy bridge plug to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for a magnesium alloy bridge plug, comprising a bridge plug device body, one end of which is provided with an mounting head having a convex structure in the transverse vertical cross section, and a clamping fixing component is mounted on the mounting head; the clamping fixing component is used to quickly fix the mounting sleeve on the mounting head.
[0007] In a preferred embodiment, the clamping fixing assembly includes a movable groove opened at the center of the mounting head, in which a movable block with a circular vertical cross-section slides. A plurality of connecting blocks arranged in a ring array are fixed to the outside of the movable block. Each connecting block slides in a movable channel opened in the mounting head. The longitudinal vertical cross-section of each movable channel has an inverted convex structure, and each movable channel is connected to the movable groove.
[0008] In a preferred embodiment, each connecting block has a push-pull rod rotatably connected to one end opposite to the moving groove, and the other end of each push-pull rod is rotatably connected to the bottom of the abutment plate, and each abutment plate slides in the moving channel.
[0009] In a preferred embodiment, each of the abutment plates is fixedly connected to a guide rod around its bottom edge, and each guide rod is movably inserted into a guide groove opened inside the mounting head.
[0010] In a preferred embodiment, a screw is threaded onto the movable block. The right end of the screw is rotatably connected to the movable groove, and the left end extends into the inner cavity opened on the inner side of the mounting head and is fixedly connected to a worm gear. A worm is meshed with one side of the worm gear, and the worm is rotatably connected to the inner cavity via a rotating shaft.
[0011] In a preferred embodiment, one end of the rotating shaft away from the worm gear extends into a recessed hole on the outside of the mounting head, and a hexagonal groove is formed at its end.
[0012] Compared with the prior art, the magnesium alloy bridge plug device provided by this utility model has at least the following beneficial effects:
[0013] In this invention, when using the magnesium alloy bridge plug device, one end of the mounting sleeve can be fitted onto the outside of the mounting head. With the aid of an external hexagonal wrench and the hexagonal groove, the rotating shaft drives the worm gear to rotate, which in turn drives the worm wheel, causing the screw to rotate. This causes the moving block to move multiple connecting blocks away from the worm wheel. Combined with the action of multiple push-pull rods, each clamping plate moves outward synchronously, thus clamping against the inner wall of the mounting sleeve, enabling rapid installation. Conversely, each clamping plate can be quickly retracted into the moving channel, greatly improving the efficiency of disassembly and assembly between the bridge plug device and the external mounting sleeve, making it convenient and quick to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional first-view structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall three-dimensional second-view structure of this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of each component in the clamping fixing assembly after the mounting head of this utility model is cut open.
[0017] Figure 4 This is a schematic diagram of the overall three-dimensional third-view structure of this utility model;
[0018] Figure 5 This is an enlarged structural diagram of point A in this utility model;
[0019] Figure 6 This is an enlarged structural diagram of section B of this utility model.
[0020] In the diagram: 1. Bridge plug device body; 11. Mounting head; 2. Clamping fixing component; 21. Moving channel; 22. Clamping plate; 23. Guide rod; 24. Push-pull rod; 25. Connecting block; 26. Moving block; 261. Moving groove; 27. Screw; 28. Worm gear; 29. Worm; 210. Rotating shaft; 211. Concave hole; 212. Hexagonal groove; 3. Mounting sleeve. Detailed Implementation
[0021] The present invention will be further described below with reference to the embodiments.
[0022] To make the objectives, technical solutions, and advantages of the present utility model embodiments clearer, the technical solutions of the present utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.
[0024] Example
[0025] During installation, one end of the sleeve is typically fitted onto the mounting head 11 of the bridge plug and secured with multiple bolts. This installation method prevents the mounting head 11 of the bridge plug from being quickly disassembled from the external mounting sleeve 3, greatly reducing the efficiency of assembly or disassembly.
[0026] For this purpose, please refer to Figure 1-6 This utility model provides a device for a magnesium alloy bridge plug, comprising: a bridge plug device body 1, one end of which is provided with an installation head 11 having a convex structure in the transverse vertical cross section, and a clamping fixing component 2 is installed on the installation head 11; the clamping fixing component 2 is used to quickly fix the installation sleeve 3 on the installation head 11.
[0027] Further as Figure 1-6As shown, it is worth noting that in order to enable the mounting sleeve 3 to be quickly fixed onto the mounting head 11, a clamping fixing assembly 2 is provided, including a moving groove 261 opened at the center of the mounting head 11. A moving block 26 with a circular vertical cross-section slides in the moving groove 261. Multiple connecting blocks 25 arranged in a circular array are fixed to the outside of the moving block 26. Each connecting block 25 slides in a moving channel 21 opened inside the mounting head 11. The longitudinal vertical cross-section of each moving channel 21 has an inverted convex structure. Each moving channel 21 is connected to the moving groove 261. A push-pull rod 24 is rotatably connected to one end of each connecting block 25 away from the moving groove 261. The other end of each push-pull rod 24 is rotatably connected to the other end of each push-pull rod 24. The bottom of the mounting head 11 is movably connected to the abutment plate 22. Each abutment plate 22 slides in the moving channel 21. Guide rods 23 are fixed around the bottom of each abutment plate 22. Each guide rod 23 is movably inserted into the guide groove opened inside the mounting head 11. A screw 27 is threadedly connected to the moving block 26. The right end of the screw 27 is rotatably connected to the moving groove 261, and the left end extends into the inner cavity opened inside the mounting head 11 and is fixedly connected to a worm gear 28. A worm 29 is meshed on one side of the worm gear 28. The worm 29 is rotatably connected to the inner cavity through a rotating shaft 210. The end of the rotating shaft 210 away from the worm 29 extends into the recess 211 opened outside the mounting head 11, and a hexagonal groove 212 is opened on its end.
[0028] The guide rod 23 allows the clamping plate 22 to move stably in the moving channel 21, and the hexagonal groove 212 is designed so that the component can be operated with the help of a hexagonal wrench.
[0029] In summary, when using this magnesium alloy bridge plug device, one end of the mounting sleeve 3 can be fitted onto the outside of the mounting head 11. With the help of an external hexagonal wrench and the hexagonal groove 212, the rotating shaft 210 drives the worm gear 29 to rotate, and the worm gear 29 transmits power to the worm wheel 28, which in turn causes the screw 27 to rotate. This causes the moving block 26 to move multiple connecting blocks 25 away from the worm wheel 28. With the help of multiple push-pull rods 24, each clamping plate 22 moves outward synchronously, thus pressing against the inner wall of the mounting sleeve 3, thereby quickly achieving installation. Conversely, each clamping plate 22 can be quickly retracted into the moving channel 21, thereby greatly improving the efficiency of disassembly and assembly between the bridge plug device and the external mounting sleeve 3, making it convenient and quick to use.
[0030] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by a person skilled in the art to which this utility model pertains. The words "comprising" or "including" and similar terms used in this utility model mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A magnesium alloy bridge plug device, comprising a bridge plug device body (1), one end of the bridge plug device body (1) is provided with a mounting head (11) with a convex structure in transverse vertical section, characterized in that: a clamping type fixing assembly (2) is mounted on the mounting head (11); the clamping type fixing assembly (2) is used for quickly fixing a mounting sleeve (3) on the mounting head (11).
2. The magnesium alloy bridge plug device according to claim 1, characterized in that: the clamping type fixing assembly (2) comprises a moving groove (261) opened at the center of the mounting head (11); a moving block (26) with a circular structure in vertical section is slid in the moving groove (261); a plurality of connecting blocks (25) arranged in an annular array are fixed to the outer side of the moving block (26), each connecting block (25) is slid in a moving channel (21) opened in the mounting head (11), the longitudinal vertical section of each moving channel (21) is in an inverted convex structure, and each moving channel (21) is in communication with the moving groove (261).
3. The magnesium alloy bridge plug device according to claim 2, characterized in that: a push-pull rod (24) is rotatably connected to one end of each connecting block (25) away from the moving groove (261), and the other end of each push-pull rod (24) is rotatably connected to the bottom of a clamping plate (22); each clamping plate (22) is slid in the moving channel (21).
4. The magnesium alloy bridge plug device according to claim 3, characterized in that: a guide rod (23) is fixed to the bottom of each clamping plate (22), and each guide rod (23) is movably inserted into a guide groove opened in the inner side of the mounting head (11).
5. The magnesium alloy bridge plug device according to claim 4, characterized in that: a screw rod (27) is threadedly connected to the moving block (26), the right end of the screw rod (27) is rotatably connected in the moving groove (261), the left end of the screw rod (27) extends into an inner cavity opened in the inner side of the mounting head (11), and a worm wheel (28) is fixed to the left end of the screw rod (27); a worm gear (29) is meshingly connected to one side of the worm wheel (28), and the worm gear (29) is rotatably connected in the inner cavity through a rotating shaft (210).
6. The magnesium alloy bridge plug device according to claim 5, characterized in that: the end of the rotating shaft (210) away from the worm gear (29) extends into a recess (211) opened in the outer side of the mounting head (11), and a hexagonal groove (212) is opened at the end of the rotating shaft (210).