Hydraulic telescopic pipe capable of transmitting torque

Abstract

The utility model relates to the related field of hydraulic telescopic pipes, in particular to a hydraulic telescopic pipe capable of transmitting torque, which comprises a device body, the device body comprises an outer cylinder, a dismounting assembly and a sealing assembly, a telescopic joint is movably inserted into the upper end of the outer cylinder, and a connecting cover is arranged at the top of the telescopic joint. A guide sliding block is arranged at the bottom of the telescopic joint, guide sliding rods are arranged on the inner wall of the outer barrel, the guide sliding block is located between the guide sliding rods in a sliding mode, the disassembling and assembling assembly is installed on the outer side of the outer barrel, the sealing assembly is installed on the outer side of the upper end of the telescopic joint and comprises a lower cover plate and an upper cover plate, and the sealing assembly comprises a bamboo joint sleeve. The telescopic joint can be disassembled, assembled and fixed and the outer cylinder body can be protected, the telescopic joint can be disassembled and maintained conveniently, the outer cylinder body can be protected against collision conveniently, the outer end of the telescopic joint can be sealed and protected, lubricating oil adding is not affected, and dust and stains are prevented from affecting the connecting position of the telescopic joint and the outer cylinder body.

Description

Technical Field

[0001] The utility model relates to the relevant field of hydraulic telescopic tubes, in particular to a hydraulic telescopic tube capable of transmitting torque. Background Art

[0002] At present, the oil field is in the middle and late stages of development. It is inevitable to put various downhole tools into the oil wells to realize the reasonable application of oil well production capacity. The downhole tools are inevitably extended or shortened due to various factors, which will affect the use effect of the downhole tools. The existing telescopic tubes can usually only extend and retract but cannot transmit torque.

[0003] In the prior art, a utility model patent with publication number CN 212272046 U proposes a torque-transmitting telescopic tube, which can compensate for the elongation or shortening of the downhole pipe string due to pressure or temperature, and can release the torque effect caused by the rotation of the pipe string, and can transmit torque when it is needed, so that the downhole tool is in a more ideal working state and the oil well productivity is improved;

[0004] However, it does not have the ability to conveniently disassemble and assemble the telescopic joint of the telescopic tube and the ability to provide external protection for the telescopic tube. The telescopic tube is more likely to be damaged during use, and it is also unable to provide sealing protection for the telescopic joint. During use, the telescopic joint is easily eroded by external dust and stains, which in turn causes wear and noise problems, reducing the practicability and service life of the device. Therefore, we need to upgrade and transform the existing technology to overcome its existing problems and shortcomings. Utility Model Content

[0005] The utility model aims to provide a hydraulic telescopic tube capable of transmitting torque, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hydraulic telescopic tube capable of transmitting torque is designed, comprising a device body, wherein the device body comprises an outer cylinder, a disassembly assembly and a sealing assembly, a lower base is arranged at the lower end of the outer cylinder, a telescopic joint is movably inserted at the upper end of the outer cylinder and a connecting cover is arranged at the top of the telescopic joint, a guide sliding block is arranged at the bottom of the telescopic joint, a guide sliding rod is arranged on the inner wall of the outer cylinder, the guide sliding block slides between the guide sliding rods, the disassembly assembly is installed on the outside of the outer cylinder, and the sealing assembly is installed on the outside of the upper end of the telescopic joint.

[0008] Furthermore, the disassembly and assembly assembly includes a lower cover plate and an upper cover plate, the lower end of the lower cover plate is provided with a plug-in ring, the upper cover plate is located on the lower cover plate, a half-thread bolt passes through the lower cover plate and the upper cover plate, and a nut is provided on the top of the upper cover plate.

[0009] Furthermore, the lower cover plate is installed on the top of the outer cylinder through a plug-in ring, and the half-thread bolt passes through the lower base and the lower cover plate and is screwed to the nut on the top of the upper cover plate.

[0010] Furthermore, an embedded groove is provided between the lower cover plate and the upper cover plate, and a sealing gasket is installed in the embedded groove.

[0011] Furthermore, the sealing assembly includes a bamboo sleeve, a center node is provided in the middle of the bamboo sleeve, a filling port is provided on the side of the center node and a sealing plug is provided on the outer side of the filling port, and mounting plates are provided at the upper and lower ends of the bamboo sleeve respectively, and mounting holes are opened on the mounting plates.

[0012] Furthermore, the bamboo joint sleeve is arranged on the outside of the telescopic joint, the upper and lower ends of the mounting plate are respectively fitted with the connecting cover and the disassembly and assembly component, and a fixing bolt is arranged in the mounting hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a disassembly and assembly component, a lower cover plate, a plug-in ring, an upper cover plate, a half-thread bolt, a nut, an embedded groove and a sealing gasket in the device. The cooperation of the half-thread bolt and the nut facilitates the disassembly and assembly and fixation of the two cover plates and the outer cylinder body, can realize the disassembly and assembly and fixation of the telescopic joint and the protection of the outer cylinder body, facilitates the disassembly and maintenance of the telescopic joint, facilitates the collision protection of the outer cylinder body to avoid damage thereof, and improves the practicality of the device.

[0015] The utility model has a sealing component, a bamboo joint sleeve, a center joint, a filling port, a sealing bolt, a mounting plate, a mounting hole and a fixing bolt arranged in the device. The bamboo joint sleeve is convenient for fixing through the mounting plate and the fixing bolt, and the telescopic joint is convenient for sleeve installation through the bamboo joint sleeve. The outer end of the telescopic joint can be sealed and protected without affecting the addition of lubricating oil, and dust and stains are prevented from affecting the connection between the telescopic joint and the outer cylinder body, thereby ensuring the stability of the device.

[0016] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the working structure of a hydraulic telescopic tube capable of transmitting torque according to the utility model;

[0019] Figure 2 It is a schematic diagram of the contraction structure of a hydraulic telescopic tube capable of transmitting torque according to the utility model;

[0020] Figure 3 This is an exploded view of the disassembly and assembly components of a hydraulic telescopic tube capable of transmitting torque according to the utility model;

[0021] Figure 4 The utility model is an exploded view of a sealing component of a hydraulic telescopic tube capable of transmitting torque.

[0022] In the figure: 1. device body; 2. outer cylinder; 21. lower base; 3. telescopic joint; 31. connecting cover; 4. guide slide block; 5. guide slide rod; 6. disassembly and assembly component; 61. lower cover plate; 62. plug-in ring; 63. upper cover plate; 64. half-thread bolt; 65. nut; 66. embedded groove; 67. sealing gasket; 7. sealing assembly; 71. bamboo joint sleeve; 72. center joint; 73. filling port; 74. sealing plug; 75. mounting plate; 76. mounting hole; 77. fixing plug. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 -4, the present embodiment provides a design of a hydraulic telescopic tube capable of transmitting torque, including a device body 1, the device body 1 contains an outer cylinder 2, a disassembly assembly 6 and a sealing assembly 7, a lower base 21 is provided at the lower end of the outer cylinder 2, a telescopic joint 3 is movably inserted at the upper end of the outer cylinder 2 and a connecting cover 31 is provided at the top of the telescopic joint 3, a guide slide block 4 is provided at the bottom of the telescopic joint 3, a guide slide rod 5 is provided on the inner wall of the outer cylinder 2, the guide slide block 4 is slidably located between the guide slide rods 5, the disassembly assembly 6 is installed on the outside of the outer cylinder 2, and the sealing assembly 7 is installed on the outside of the upper end of the telescopic joint 3.

[0025] Preferably, the disassembly assembly 6 comprises a lower cover plate 61 and an upper cover plate 63, a plug ring 62 is provided at the lower end of the lower cover plate 61, the upper cover plate 63 is located on the lower cover plate 61, a half-thread bolt 64 is passed through between the lower cover plate 61 and the upper cover plate 63, a nut 65 is provided at the top of the upper cover plate 63, the lower cover plate 61 is installed on the top of the outer cylinder 2 through the plug ring 62, the half-thread bolt 64 passes through the lower base 21 and the lower cover plate 61 and is screwed with the nut 65 at the top of the upper cover plate 63, an embedded groove 66 is provided between the lower cover plate 61 and the upper cover plate 63, and a sealing gasket 67 is installed in the embedded groove 66;

[0026] The lower cover plate 61 can be conveniently connected to the outer cylinder 2 through the plug-in ring 62, and the lower cover plate 61, the lower base 21 and the upper cover plate 63 can be connected in series and fixedly connected through the half-thread bolts 64, so that the lower cover plate 61 and the upper cover plate 63 are fixed to the top of the outer cylinder 2, and vice versa, they can be disassembled, thereby facilitating the cleaning and maintenance of the telescopic joint 3 or the inside of the outer cylinder 2.

[0027] Preferably, the sealing assembly 7 comprises a bamboo sleeve 71, a central section 72 is provided in the middle of the bamboo sleeve 71, a filling port 73 is provided on the side of the central section 72, and a sealing bolt 74 is provided on the outer side of the filling port 73, the upper and lower ends of the bamboo sleeve 71 are respectively provided with mounting plates 75, and the mounting plate 75 is provided with a mounting hole 76, the bamboo sleeve 71 is sleeved on the outer side of the telescopic section 3, the upper and lower ends of the mounting plate 75 are respectively fitted with the connecting cover 31 and the disassembly assembly 6, and a fixing bolt 77 is provided in the mounting hole 76;

[0028] By cooperating with the upper and lower mounting plates 75 and the fixing bolts 77, the bamboo joint sleeve 71 can be conveniently fixedly connected between the connecting cover 31 and the upper cover plate 63. The bamboo joint sleeve 71 can be conveniently used to protect the exposed part of the telescopic joint 3 to prevent it from being affected by dust and stains and causing wear and abnormal noise. The filling port 73 can be used to conveniently add lubricating oil to the telescopic joint 3.

[0029] The use principle and use process of the utility model: when in use, the half-thread bolt 64 can be first taken out from the upper cover plate 63 and the lower cover plate 61 by disassembling the nut 65. At this time, the upper cover plate 63 and the lower cover plate 61 can be taken out from the outer cylinder 2, and then the telescopic joint 3 and the guide sliding block 4 can be taken out from the outer cylinder 2, which is convenient for cleaning and maintenance operations. Otherwise, they can be installed. The half-thread bolt 64 arranged on the outside can also provide a certain protection for the outer cylinder 2 to prevent the outer cylinder 2 from being damaged by external force impact and bump. During the operation of the telescopic joint 3, it will drive the upper bamboo joint sleeve 71 to telescope on the outer cylinder 2. The bamboo joint sleeve 71 is always wrapped on the outside of the telescopic joint 3, so that the telescopic joint 3 will not be exposed to the outside, avoiding the interference of dust and stains on the connection between the telescopic joint 3 and the outer cylinder 2, effectively avoiding the wear and abnormal noise problems of the telescopic joint 3, and improving the practicability of the device.

[0030] In the description of the present 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Claims

1. A hydraulic telescopic tube capable of transmitting torque, characterized in that: The device comprises a device body (1), wherein the device body (1) contains an outer cylinder (2), a disassembly assembly (6) and a sealing assembly (7); a lower base (21) is provided at the lower end of the outer cylinder (2); a telescopic joint (3) is movably plugged at the upper end of the outer cylinder (2); a connecting cover (31) is provided at the top of the telescopic joint (3); a guide slide block (4) is provided at the bottom of the telescopic joint (3); guide slide rods (5) are provided on the inner wall of the outer cylinder (2); the guide slide block (4) is slidably located between the guide slide rods (5); the disassembly assembly (6) is mounted on the outer side of the outer cylinder (2); and the sealing assembly (7) is mounted on the outer side of the upper end of the telescopic joint (3).

2. A hydraulic telescopic tube capable of transmitting torque according to claim 1, characterized in that: The disassembly assembly (6) comprises a lower cover plate (61) and an upper cover plate (63); a plug ring (62) is provided at the lower end of the lower cover plate (61); the upper cover plate (63) is located on the lower cover plate (61); a half-thread bolt (64) penetrates between the lower cover plate (61) and the upper cover plate (63); and a nut (65) is provided at the top of the upper cover plate (63).

3. A hydraulic telescopic tube capable of transmitting torque according to claim 2, characterized in that: The lower cover plate (61) is mounted on the top of the outer cylinder (2) via a plug-in ring (62), and the half-thread bolt (64) penetrates the lower base (21) and the lower cover plate (61) and is threadedly connected to the nut (65) at the top of the upper cover plate (63).

4. A hydraulic telescopic tube capable of transmitting torque according to claim 2, characterized in that: An embedded groove (66) is provided between the lower cover plate (61) and the upper cover plate (63), and a sealing gasket (67) is installed in the embedded groove (66).

5. The hydraulic telescopic tube capable of transmitting torque according to claim 1, characterized in that: The sealing assembly (7) comprises a bamboo sleeve (71), a central section (72) is provided in the middle of the bamboo sleeve (71), a filling port (73) is provided on the side of the central section (72), and a sealing plug (74) is provided on the outer side of the filling port (73), and mounting plates (75) are provided at the upper and lower ends of the bamboo sleeve (71), and mounting holes (76) are provided on the mounting plates (75).

6. A hydraulic telescopic tube capable of transmitting torque according to claim 5, characterized in that: The bamboo joint sleeve (71) is sleeved on the outside of the telescopic joint (3); the upper and lower ends of the mounting plate (75) are respectively fitted with the connection cover (31) and the disassembly assembly (6); and a fixing bolt (77) is provided in the mounting hole (76).

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