Packer end quick-connection terminal structure

Abstract

The utility model provides a quick connection terminal structure at the end part of a packer, which relates to the technical field of quick connection terminals and comprises a protective cover, a central connection pipe is movably connected in the protective cover, four track chutes are uniformly arranged on the surface of the central connection pipe, track pins are movably connected in the track chutes, and the central connection pipe is connected with the track pins. First reset springs are arranged on the surfaces of the four track pins, one ends of the first reset springs are fixedly connected with limiting blocks, clamping grooves are formed in the surfaces of the limiting blocks, L-shaped clamping blocks are movably connected into the clamping grooves, and wedge-shaped bodies are fixedly connected to the surfaces of the L-shaped clamping blocks. The limiting block and the wedge-shaped body can move in the protective cover through the first reset spring, and the central connecting pipe can be conveniently moved out of the protective cover, so that the design and operation of the quick connection terminal structure are simple, the connection process is convenient, the maintenance and replacement of elements become simple and quick, and the stability can be kept in a severe underground environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a quick terminal technical field especially relates to a packer end quick terminal structure. BACKGROUND

[0002] According to the quick connector of Chinese patent publication No. CN 112072345 A, a base is provided with a plurality of channels, an insulator is arranged in the channel, a pin is arranged in the insulator, the pin is used for connecting the cables at both ends of the same channel, the channels at both ends are sealed with the cables, and at least one end of the channel is sealed with a connecting piece. In the prior art, the connection of the cable needs to be in accordance with the relevant specifications, and after the cable is connected, waterproof treatment needs to be carried out using a waterproof tape, and when the cable is disassembled later, the waterproof tape also needs to be removed first, and the connection and disassembly operation is complex. The device of the application only needs to insert or pull out the connecting piece to realize the connection and disassembly between the cables in the same channel, and the operation is simple.

[0003] The technical problem is that the design and operation of the existing quick terminal structure are complex, the connection process is not convenient, maintenance and replacement of components become complex, and stability cannot be maintained in a harsh downhole environment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a packer end quick terminal structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a packer end quick terminal structure, which comprises a protective cover, a center connecting pipe is movably connected in the protective cover, four track sliding grooves are uniformly arranged on the surface of the center connecting pipe, a track pin is movably connected in the track sliding groove, a first reset spring is arranged on the surface of the four track pins, one end of the first reset spring is fixedly connected with a limiting block, a clamping groove is arranged on the surface of the limiting block, an L-shaped clamping block is movably connected in the clamping groove, and a wedge-shaped body is fixedly connected to the surface of the L-shaped clamping block.

[0006] Preferably, an outer thread is arranged on one end surface of the center connecting pipe, and an inner thread is arranged on the inner surface of the other end of the center connecting pipe.

[0007] Preferably, a limiting groove is arranged in the inner part of the center connecting pipe close to the outer thread, a guide pin is movably connected in the limiting groove, and an upper joint is arranged on the top surface of the guide pin.

[0008] Preferably, a second reset spring is arranged at the bottom end of the guide pin, and the bottom surface of the limiting groove is fixedly connected with one end of the second reset spring.

[0009] Preferably, one end of the center connecting pipe is movably connected with a lower connector, and the top surface of the lower connector is fixedly connected with a limiting pressing ring.

[0010] Preferably, the surface of the protective cover is uniformly provided with through holes, and the limiting block is movably connected with the inside of the through holes.

[0011] Preferably, the surface of the outer thread is provided with an upper pressing ring, and the inside of the inner thread is provided with a center pipe.

[0012] Beneficial effects

[0013] In the utility model, the limiting block and the wedge-shaped body are movably arranged in the protective cover through the first reset spring, the center connecting pipe can be conveniently removed from the protective cover, the design of the quick connecting terminal structure is simple to operate, the connecting process is convenient, the maintenance and replacement of elements are simple and fast, and the structure can also be stable in a harsh downhole environment.

[0014] In the utility model, the guide pin is movably arranged in the limiting groove, and the limiting block is removed from the protective cover through the track pin in the track sliding groove, so that the alignment of the components during connection is ensured, and damage is avoided. DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is an internal structure view of the utility model;

[0018] Figure 4 It is an internal front view of the utility model;

[0019] Figure 5 It is a front sectional view of the utility model.

[0020] Legend:

[0021] 1, protective cover; 2, center connecting pipe; 3, upper connector; 4, lower connector; 5, limiting pressing ring; 6, outer thread; 7, limiting block; 8, wedge-shaped body; 9, clamping groove; 10, track sliding groove; 11, track pin; 12, L-shaped clamping block; 13, first reset spring; 14, inner thread; 15, limiting groove; 16, second reset spring; 17, guide pin. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation characteristics, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiment one:

[0025] With reference to Figures 1-5 A packer end quick connection terminal structure, including the protective cover 1, the inside movable joint of the protective cover 1 has the center connecting pipe 2, the surface of the center connecting pipe 2 is evenly provided with four track sliding grooves 10, the inside movable joint of the track sliding groove 10 has the track dowel 11, the surface of the four track dowels 11 is evenly provided with the first reset spring 13, one end of the first reset spring 13 is fixedly connected with the limiting block 7, the surface of the limiting block 7 is provided with the clamping groove 9, the inside movable joint of the clamping groove 9 has the L-shaped clamping block 12, the surface of the L-shaped clamping block 12 is fixedly connected with the wedge body 8.

[0026] The surface of one end of the center connecting pipe 2 is provided with the external thread 6, the inner surface of the other end of the center connecting pipe 2 is provided with the internal thread 14, the inside of the center connecting pipe 2 close to the external thread 6 is provided with the limiting groove 15, the inside movable joint of the limiting groove 15 has the guide pin 17, for ensuring the alignment of components when connecting, avoiding damage, the top surface of the guide pin 17 is provided with the upper joint 3, the bottom end of the guide pin 17 is provided with the second reset spring 16, the bottom surface of the limiting groove 15 is fixedly connected with one end of the second reset spring 16, one end of the center connecting pipe 2 is movably connected with the lower joint 4, the top surface of the lower joint 4 is fixedly connected with the limiting compression ring 5, the surface of the protective cover 1 is evenly provided with the through hole, the inside movable joint of the limiting block 7 and the through hole, the surface of the external thread 6 is provided with the upper jacking ring, the inside of the internal thread 14 is provided with the center pipe.

[0027] In use, the limiting block 7 and the wedge-shaped body 8 can be moved in the protective cover 1 through the first reset spring 13, the central connecting pipe 2 is conveniently removed from the protective cover 1, the design and operation of the quick connection terminal structure are simple, the connection process is convenient, the maintenance and replacement of elements are simple and fast, and the structure can also remain stable in a harsh downhole environment. Specific embodiment two:

[0029] Reference Figures 1-5 A packer end quick connection terminal structure based on the basic structure in specific embodiment one, further technical solutions solve the problem that the protective cover 1 is rusted in long-term use due to the wide application of the packer end quick connection terminal structure in layered water injection, layered oil production, water plugging and other operations. A corrosion-resistant layer can be arranged on the surface of the protective cover 1 and the central connecting pipe 2 to effectively prevent the protective cover 1 and the central connecting pipe 2 from rusting.

[0030] In summary:

[0031] 1. The limiting block 7 and the wedge-shaped body 8 can be moved in the protective cover 1 through the first reset spring 13, the central connecting pipe 2 is conveniently removed from the protective cover 1, the design and operation of the quick connection terminal structure are simple, the connection process is convenient, the maintenance and replacement of elements are simple and fast, and the structure can also remain stable in a harsh downhole environment.

[0032] 2. The limiting block 7 and the wedge-shaped body 8 can be moved in the protective cover 1 through the first reset spring 13, the central connecting pipe 2 is conveniently removed from the protective cover 1, the design and operation of the quick connection terminal structure are simple, the connection process is convenient, the maintenance and replacement of elements are simple and fast, and the structure can also remain stable in a harsh downhole environment.

[0033] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicate that first feature horizontal height is less than second feature.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A packer end quick connect terminal structure comprising a protective boot (1), characterized in that: The inside of the protective cover (1) is movably connected with a center connecting pipe (2), the surface of the center connecting pipe (2) is uniformly provided with four track sliding grooves (10), the inside of the track sliding groove (10) is movably connected with a track pin (11), the surface of the four track pins (11) is provided with a first reset spring (13), one end of the first reset spring (13) is fixedly connected with a limiting block (7), the surface of the limiting block (7) is provided with a clamping groove (9), the inside of the clamping groove (9) is movably connected with an L-shaped clamping block (12), the surface of the L-shaped clamping block (12) is fixedly connected with a wedge-shaped body (8).

2. The packer end fast connect terminal structure of claim 1, wherein: The surface of one end of the center connecting pipe (2) is provided with an external thread (6), the inner surface of the other end of the center connecting pipe (2) is provided with an internal thread (14).

3. The packer end fast connect terminal structure of claim 2, wherein: The inside of the center connecting pipe (2) close to the external thread (6) is provided with a limiting groove (15), the inside of the limiting groove (15) is movably connected with a guide pin (17), the top surface of the guide pin (17) is provided with an upper joint (3).

4. The packer end fast connect terminal structure of claim 3, wherein: The bottom end of the guide pin (17) is provided with a second reset spring (16), the bottom surface of the limiting groove (15) is fixedly connected with one end of the second reset spring (16).

5. The packer end fast connect terminal structure of claim 3, wherein: One end of the center connecting pipe (2) is movably connected with a lower joint (4), the top surface of the lower joint (4) is fixedly connected with a limiting pressing ring (5).

6. The packer end fast connect terminal structure of claim 1, wherein: The surface of the protective cover (1) is uniformly provided with a through hole, the inside of the limiting block (7) is movably connected with the through hole.

7. The packer end fast connect terminal structure of claim 2, wherein: The surface of the external thread (6) is provided with an upper pressing ring, the inside of the internal thread (14) is provided with a center pipe.

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