Protection device for packer rubber barrel

Abstract

The utility model discloses a packer rubber sleeve protection device, which comprises a packer body, the packer body comprises an upper joint, a lower joint, an upper rubber sleeve seat, a lower rubber sleeve seat, a central pipe and a rubber sleeve, the upper joint is arranged at the upper end of the central pipe, the upper rubber sleeve seat is sleeved at the position of the upper joint close to the lower end, and the lower rubber sleeve seat is sleeved at the lower end of the central pipe. The lower end of the central pipe is provided with a lower connector, the position, close to the upper end, of the lower connector is sleeved with a lower rubber barrel base, a rubber barrel is arranged between the upper rubber barrel base and the lower rubber barrel base, a protection barrel is arranged in the lower rubber barrel base, the lower end of the rubber barrel is provided with a silica gel cavity and a limiting barrel, and a piston column is arranged in the silica gel cavity. Limiting grooves are formed in the left side and the right side of the limiting cylinder, a telescopic cavity is formed in the upper end of the lower connector, a spring and a shaft rod are arranged in the telescopic cavity, a top plate is arranged at the upper end of the shaft rod, connecting rods are fixedly connected to the left side and the right side of the outer side surface of the shaft rod, and the connecting rods are fixedly connected with the protection cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of packer rubber tube protection devices, in particular to a packer rubber tube protection device. Background Art

[0002] The rubber sleeve of the packer is a device used to seal and isolate fluids or gases. It is usually made of rubber or other elastic materials and has a cylindrical shape. The main function of the rubber sleeve of the packer is to create a reliable seal between two adjacent parts and prevent fluids or gases from leaking or mixing between them. In the prior art, the rubber sleeve of the packer lacks a protective device, and it is often easy to produce friction with the hole wall when it is lowered into the hole to seal, which may cause wear, scratches or tears of the rubber sleeve of the packer, thereby reducing its sealing effect. Therefore, those skilled in the art provide a protective device for the rubber sleeve of the packer to solve the problems raised in the above background technology. Utility Model Content

[0003] The utility model aims to provide a protective device for a packer rubber cylinder to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A protective device for a packer rubber cylinder, comprising a packer body, the packer body mainly comprising an upper joint, a lower joint, an upper rubber cylinder seat, a lower rubber cylinder seat, a center tube, and a rubber cylinder, the upper end of the center tube is provided with an upper joint, the upper joint is sleeved with an upper rubber cylinder seat near the lower end, the lower end of the center tube is provided with a lower joint, the lower end of the lower joint is sleeved with a lower rubber cylinder seat near the upper end, a rubber cylinder is provided between the upper rubber cylinder seat and the lower rubber cylinder seat, a protective cylinder is slidably installed in the lower rubber cylinder seat close to its inner wall, the lower end of the rubber cylinder extends to the interior of the lower rubber cylinder seat, and a rubber cylinder is provided in the rubber cylinder near the lower end There is a vulcanized core II, a silicone cavity is provided at the lower end of the rubber tube, a piston column is slidably provided inside the silicone cavity, the piston column extends to the inside of the center tube and is slidably connected to the inner wall of the center tube, a limiting cylinder is sleeved on the outside of the silicone cavity, the inner wall of the limiting cylinder has limiting grooves on both sides of the same diameter, a telescopic cavity is centrally provided at the upper end of the lower joint, a shaft rod is slidably provided in the telescopic cavity, the upper end of the shaft rod is fixedly connected to a top plate, the outer surface of the shaft rod is fixedly connected to both sides of the same diameter with connecting rods, the connecting rod passes through the limiting groove and is fixedly connected to the inner wall of the protective tube.

[0006] As a further solution of the utility model: a spring is arranged at the lower end of the shaft.

[0007] As a further solution of the utility model: a sealing ring is provided at the connection between the upper joint and the central pipe.

[0008] As a further solution of the utility model: the upper end of the rubber tube extends to the interior of the upper rubber tube seat, and a vulcanization core is arranged near the upper end of the rubber tube.

[0009] As a further solution of the utility model: the first vulcanized core and the second vulcanized core are both sleeved on the central tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] First, the utility model uses the spring in the telescopic cavity to bounce the shaft rod, and lifts the protection tube through the shaft rod, so that the rubber tube is protected by the protection tube.

[0012] Second, silicone can withstand a certain amount of pressure and strain. When the shaft is lifted, the silicone cavity is squeezed, thereby pushing the piston column in the silicone cavity into the center tube. When hydraulic pressure is injected to expand the rubber tube for sealing, the hydraulic pressure will push the piston column downward. Silicone can withstand a certain amount of pressure and strain, so that the shaft can be pushed into the telescopic cavity through the piston column through the silicone cavity, thereby driving the protective tube downward. When the rubber tube expands, the protective tube opens downward without affecting the sealing of the rubber tube by expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic diagram of the external structure of a packer body of a protective device for a packer rubber cylinder.

[0014] Figure 2 A schematic diagram of opening a protective tube in a protective device for a packer rubber tube.

[0015] Figure 3 The present invention is a schematic diagram of the internal structure of a packer body in a protective device for a packer rubber cylinder.

[0016] Figure 4 The present invention is a schematic diagram of the structure of a protection tube and a limit tube in a protection device for a packer rubber tube.

[0017] In the figure: 1. upper joint; 2. upper rubber cylinder seat; 3. lower rubber cylinder seat; 4. lower joint; 5. protective cylinder; 6. center tube; 7. rubber cylinder; 9. sealing ring; 10. vulcanized core 1; 11. vulcanized core 2; 12. piston column; 13. silicone cavity; 14. limiting cylinder; 15. telescopic cavity; 16. spring; 17. shaft rod; 18. top plate; 19. connecting rod; 20. limiting groove; 21. packer body. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with the specific implementation methods. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] See also Figures 1 to 4In the embodiment of the utility model, a protective device for a packer rubber cylinder comprises a packer body 21, wherein the packer body 21 mainly comprises an upper joint 1, a lower joint 4, an upper rubber cylinder seat 2, a lower rubber cylinder seat 3, a center tube 6, and a rubber cylinder 7. An upper joint 1 is arranged at the upper end of the center tube 6, an upper rubber cylinder seat 2 is sleeved at the position of the upper joint 1 near the lower end, a lower joint 4 is arranged at the lower end of the center tube 6, a lower rubber cylinder seat 3 is sleeved at the position of the lower joint 4 near the upper end, a rubber cylinder 7 is arranged between the upper rubber cylinder seat 2 and the lower rubber cylinder seat 3, a protective cylinder 5 is slidably installed in the lower rubber cylinder seat 3 against its inner wall, the lower end of the rubber cylinder 7 extends to the interior of the lower rubber cylinder seat 3, a vulcanized core 11 is arranged in the interior of the rubber cylinder 7 near the lower end, a silicone cavity 13 is arranged at the lower end of the rubber cylinder 7, a piston column 12 is slidably arranged in the silicone cavity 13, and the piston column 12 extends to the middle The interior of the core tube 6 is slidably connected to the inner wall of the center tube 6, and a limiting tube 14 is sleeved on the outside of the silicone cavity 13. The inner wall of the limiting tube 14 is provided with limiting grooves 20 on both sides of the left and right sides on the same diameter. A telescopic cavity 15 is centrally opened at the upper end of the lower joint 4, and a shaft rod 17 is slidably arranged in the telescopic cavity 15. The upper end of the shaft rod 17 is fixedly connected to a top plate 18, and the outer surface of the shaft rod 17 is fixedly connected to both sides of the left and right sides on the same diameter. The connecting rod 19 passes through the limiting groove 20 and is fixedly connected to the inner wall of the protective tube 5, and a spring 16 is arranged at the lower end of the shaft rod 17. A sealing ring 9 is arranged at the connection between the upper joint 1 and the center tube 6, and the upper end of the rubber tube 7 extends to the interior of the upper rubber tube seat 2. A vulcanization core 10 is arranged near the upper end of the rubber tube 7, and the vulcanization core 10 and the vulcanization core 2 11 are both sleeved on the center tube 6.

[0020] The working principle of the utility model is as follows: when using the utility model, it is only necessary to install the normal operation process, and according to the process requirements, the packer body 21 is lowered into the hole to design a deep seat seal. During the lowering process, the protective tube 5 will protect the rubber tube 7 to prevent it from being scratched by the hole wall during the lowering process. While adding hydraulic pressure to cause the rubber tube 7 to expand and seal, the hydraulic pressure will push the piston column 12 downward, and the silica gel can withstand a certain pressure and strain, so that the piston column 12 can push the shaft rod 17 into the telescopic cavity 15 through the silica gel cavity 13, so that the protective tube 5 is driven downward by the connecting rod 19, so that when the rubber tube 7 expands, the protective tube 5 opens downward, and does not affect the sealing of the rubber tube 7 by expansion. When unsealing, the pressure is released, and the spring 16 in the telescopic cavity 15 will bounce the shaft rod 17, so that the protective tube 5 is lifted by the shaft rod 17, so that in the process of taking out the packer body 21, the rubber tube 7 is protected by the protective tube 5.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protective device for a packer rubber cartridge, comprising a packer body (21), characterized in that: The packer body (21) mainly comprises an upper joint (1), a lower joint (4), an upper rubber tube seat (2), a lower rubber tube seat (3), a center tube (6), and a rubber tube (7). The upper end of the center tube (6) is provided with an upper joint (1), and the upper rubber tube seat (2) is sleeved on the upper joint (1) near the lower end. The lower end of the center tube (6) is provided with a lower joint (4), and the lower joint (4) is sleeved on the lower rubber tube seat (3) near the upper end. A rubber tube (7) is provided between the upper rubber tube seat (2) and the lower rubber tube seat (3). A protective tube (5) is slidably mounted on the inner wall of the lower rubber tube seat (3). The lower end of the rubber tube (7) extends to the interior of the lower rubber tube seat (3). A vulcanized core 2 (11) is provided on the rubber tube (7) near the lower end. A silicone cavity (13) is provided at the lower end, a piston column (12) is slidably provided inside the silicone cavity (13), the piston column (12) extends to the inside of the central tube (6) and is slidably connected to the inner wall of the central tube (6), a limiting cylinder (14) is sleeved on the outside of the silicone cavity (13), and limiting grooves (20) are provided on the left and right sides of the inner wall of the limiting cylinder (14) on the same diameter, a telescopic cavity (15) is provided in the center of the upper end of the lower joint (4), a shaft rod (17) is slidably provided in the telescopic cavity (15), the upper end of the shaft rod (17) is fixedly connected to a top plate (18), the outer surface of the shaft rod (17) is fixedly connected to the left and right sides on the same diameter, and the connecting rod (19) passes through the limiting groove (20) and is fixedly connected to the inner wall of the protective tube (5).

2. A protective device for a packer rubber cartridge according to claim 1, characterized in that: A spring (16) is provided at the lower end of the shaft rod (17).

3. A protective device for a packer rubber cartridge according to claim 1, characterized in that: A sealing ring (9) is provided at the connection between the upper joint (1) and the central pipe (6).

4. A protective device for a packer rubber cartridge according to claim 1, characterized in that: The upper end of the rubber tube (7) extends to the interior of the upper rubber tube seat (2), and a vulcanization core (10) is arranged inside the rubber tube (7) near the upper end.

5. A protective device for a packer rubber cartridge according to claim 4, characterized in that: The vulcanized core 1 (10) and the vulcanized core 2 (11) are both sleeved on the central tube (6).

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