Throwing-pulling type underground cable joint

Abstract

The utility model relates to the technical field of cable connectors, and discloses a throwing-pulling type underground cable connector which comprises a connector body, a plurality of evenly distributed glue injection holes are formed in the top of the connector body, two supporting legs are fixed to the bottom of the connector body, and balance seats are installed at the bottoms of the two supporting legs. The protection mechanisms are located on the two sides of the outer wall of the connector body, and each protection mechanism comprises a sliding assembly, a control assembly, a positioning assembly and a limiting assembly; through the arrangement of the protection mechanism, the interface of the cable and the joint body can be protected, so that when the cable shakes, the protection cover can make the cable abut against and make the cable rub with the smooth position, the situation that the cable is seriously abraded or even damaged due to friction between the cable and the joint is avoided, and therefore the insulation efficiency of the cable is improved; and meanwhile, the problem that damage caused by friction in a traditional device accelerates corrosion of the cable and further reduces the safety of the connector is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a casting and fishing type downhole cable connector. Background Art

[0002] The cast-and-return downhole cable connector is a cable connection technology used in oil or water wells. Its main feature is that the cable connector can be installed and replaced through a specially designed cast-and-return tool, and can maintain a stable connection in the harsh environment of the well. Due to its convenience and reliability, the cast-and-return downhole cable connector is widely used in various downhole data acquisition, control and monitoring systems.

[0003] When using traditional devices, a suitable plunge-type cable joint is first prepared, and the insulation and integrity of the cable are checked to ensure that there is no obvious wear or corrosion. After reaching the predetermined position underground, the plunge-type tool is used to properly support the joint. The two ends of the cable are then connected and protected by the joint to prevent damage to the cable. Finally, glue is injected into the joint through the glue injection hole to fix the cable to the joint. However, after the cable is connected, it is difficult to protect the interface between the cable and the joint. When the cable shakes, it is easy to rub against the joint, causing severe wear or even damage to the cable, thereby reducing the insulation efficiency of the cable. At the same time, the damage caused by friction can accelerate the corrosion of the cable, further reducing the safety of the joint. Utility Model Content

[0004] The purpose of the utility model is to provide a cast-in-place downhole cable joint, which solves the problem in the background technology that it is difficult to protect the interface between the cable and the joint, so that when the cable shakes, it is easy to rub against the joint, causing serious wear and even damage to the cable.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A cast-and-fish downhole cable joint, comprising:

[0007] The joint body has a plurality of evenly distributed glue injection holes on the top, and two supporting legs are fixed to the bottom of the joint body, and the bottoms of the two supporting legs are both equipped with a balancing seat;

[0008] A protective mechanism, which is located on both sides of the outer wall of the connector body and is used to protect the cable. The protective mechanism includes a sliding component, a control component, a positioning component and a limit component. The sliding component is located on the outer wall of the connector body and is used to protect the connected cable. The positioning component is located inside the sliding component and is used to position the sliding component. The control component is located on the outer wall of the sliding component and is used to control the positioning component. The limit component is located between the connector body and the sliding component and is used to limit the sliding component.

[0009] Preferably, the sliding assembly includes a plurality of convex strips fixed on the outer wall of the joint body and a protective cover sleeved on the outer wall of the joint body, a smooth portion is provided on one side of the protective cover, and a sliding groove for the convex strips to slide is provided inside the protective cover.

[0010] Preferably, the positioning assembly includes a receiving groove provided inside the protective cover and a positioning rod installed inside the receiving groove, and a positioning hole for inserting the positioning rod is provided inside the convex strip.

[0011] Preferably, the control component includes a linkage rod fixed on the top of the positioning rod, a control sleeve is provided on the outer wall of the protective cover, the linkage rod extends to the outer wall of the protective cover and is fixed to the control sleeve, a moving cavity for the linkage rod to move is provided on the top of the protective cover, and a spring is connected between the linkage rod and the moving cavity.

[0012] Preferably, the limiting assembly includes a fixing sleeve fixed to the outer wall of the joint body, a plurality of evenly distributed limiting rods are fixed to one side of the fixing sleeve, and a plurality of limiting holes for inserting the limiting rods are opened inside the protective cover.

[0013] Preferably, a clamping mechanism for clamping the cable connector is provided inside the connector body, and the clamping mechanism includes a support seat and a clamping seat provided inside the connector body, a connecting rod is fixed between the support seat and the connector body, and a driving component for driving the clamping seat to move is provided between the clamping seat and the connector body.

[0014] Preferably, the drive assembly includes a threaded rod screwed to the top of the joint body, a bearing is fixed to the top of the clamping seat, the bearing is connected to the threaded rod, two limit columns are fixed to the top of the clamping seat, the two limit columns are plugged into the joint body, and the threaded rod extends to the top of the joint body and is installed with a rotating knob.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The utility model can protect the interface between the cable and the connector body by setting a protective mechanism. When the cable shakes, the protective cover can resist the cable and make it rub against the smooth surface, thus avoiding the friction between the cable and the connector, which may cause serious wear or even damage to the cable, thereby improving the insulation efficiency of the cable. At the same time, it solves the problem that the damage caused by friction in traditional devices will accelerate the corrosion of the cable and further reduce the safety of the connector.

[0017] 2. The utility model can clamp the cable interface through the setting of the clamping mechanism, which can effectively limit the movement of the cable, reduce the mechanical stress caused by vibration, stretching or twisting, and reduce the risk of breakage. At the same time, by ensuring the firmness and stability of the cable connection, the clamping can reduce the safety hazards caused by cable failure and ensure the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the connector body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the protective mechanism of the utility model when it is disassembled;

[0021] Figure 4 It is a cross-sectional view of the protective cover of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the clamping mechanism of the present utility model.

[0023] Among them: 1. Connector body; 2. Protective mechanism; 3. Clamping mechanism; 4. Support legs; 5. Glue injection hole;

[0024] 21. Raised strip; 22. Protective cover; 23. Control sleeve; 24. Fixed sleeve; 25. Limit rod; 26. Positioning rod; 27. Spring; 28. Linkage rod;

[0025] 31. Support seat; 32. Clamping seat; 33. Connecting rod; 34. Threaded rod; 35. Bearing; 36. Limiting column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please refer to Figure 1 and Figure 2 A casting and fishing type downhole cable joint comprises: a joint body 1, a plurality of evenly distributed glue injection holes 5 are opened on the top of the joint body 1, and two supporting legs 4 are fixed at the bottom of the joint body 1, and a balancing seat is installed at the bottom of the two supporting legs 4.

[0028] Please refer to Figure 2 、 Figure 3 and Figure 4 , protection mechanism 2, the protection mechanism 2 is located on both sides of the outer wall of the connector body 1 and is used to protect the cable, the protection mechanism 2 includes a sliding component, a control component, a positioning component and a limit component, the sliding component is located on the outer wall of the connector body 1 and is used to protect the connected cable, the positioning component is located inside the sliding component and is used to position the sliding component, the control component is located on the outer wall of the sliding component and is used to control the positioning component, the limit component is located between the connector body 1 and the sliding component and is used to limit the sliding component;

[0029] The sliding assembly includes a plurality of ridges 21 fixed to the outer wall of the joint body 1 and a protective cover 22 sleeved on the outer wall of the joint body 1. A smooth area is provided on one side of the protective cover 22, and a sliding groove is provided inside the protective cover 22 for the ridges 21 to slide. The positioning assembly includes a receiving groove provided inside the protective cover 22 and a positioning rod 26 installed inside the receiving groove. A positioning hole is provided inside the ridge 21 for the positioning rod 26 to be inserted. The control assembly includes a linkage rod 28 fixed to the top of the positioning rod 26. The outer wall of the protective cover 22 is provided with a control sleeve 23. The linkage rod 28 extends to the outer wall of the protective cover 22 and is fixed to the control sleeve 23. A moving cavity for the linkage rod 28 to move is provided at the top of the protective cover 22. A spring 27 is connected between the linkage rod 28 and the moving cavity. The limit assembly includes a fixed sleeve 24 fixed to the outer wall of the joint body 1. A plurality of evenly distributed limit rods 25 are fixed on one side of the fixed sleeve 24. A plurality of limit holes for the limit rods 25 to be inserted are provided inside the protective cover 22.

[0030] The spring 27 is then released to allow the linkage rod 28 to be retracted, thereby allowing the linkage rod 28 to be retracted and the positioning rod 26 to be retracted. The positioning rod 26 is then retracted and the positioning rod 26 is retracted, thereby allowing the positioning rod 26 to be retracted and the positioning hole to be retracted. After the positioning rod 26 is retracted from the positioning hole, the protective cover 22 is moved. The sliding groove and the convex strip 21 cooperate with each other to extend the protective cover 22 to one side of the connector body 1. The movement of the protective cover 22 drives the smooth part to move synchronously, so that the smooth part can correspond to the connected cable. When the smooth part moves to the optimal position, the control sleeve 23 is released, and the linkage rod 28 is reset by the elastic force of the spring 27. The reset of the linkage rod 28 drives the positioning rod 26 to be reset, thereby driving the positioning rod 26 to be plugged into the positioning hole. The setting of the limit rod 25 makes the protective cover 22 more stable during the movement and will not easily shake or fall off.

[0031] Please also refer to Figure 2 and Figure 5 A clamping mechanism 3 for clamping the cable connector is provided inside the connector body 1. The clamping mechanism 3 includes a support seat 31 and a clamping seat 32 provided inside the connector body 1. A connecting rod 33 is fixed between the support seat 31 and the connector body 1. A driving component for driving the clamping seat 32 to move is provided between the clamping seat 32 and the connector body 1. The driving component includes a threaded rod 34 screwed to the top of the connector body 1. A bearing 35 is fixed on the top of the clamping seat 32. The bearing 35 is connected to the threaded rod 34. Two limit columns 36 are fixed on the top of the clamping seat 32. The two limit columns 36 are plugged into the connector body 1. The threaded rod 34 extends to the top of the connector body 1 and is installed with a rotating knob.

[0032] When the cable connection is completed, turning the rotary knob drives the threaded rod 34 to rotate, and the rotation of the threaded rod 34 causes it to move inside the connector body 1. The movement of the threaded rod 34 drives the clamping seat 32 to move, and the movement of the clamping seat 32 causes it to fit with the support seat 31 until the cable connection is clamped. Then, the rotary knob can be stopped. The setting of the limit column 36 makes the clamping seat 32 more stable during the movement.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast-and-fish downhole cable joint, characterized in that: include: A joint body (1), wherein a plurality of evenly distributed glue injection holes (5) are provided on the top of the joint body (1), and two supporting legs (4) are fixed to the bottom of the joint body (1), and a balancing seat is installed at the bottom of each of the two supporting legs (4); A protective mechanism (2), the protective mechanism (2) is located on both sides of the outer wall of the connector body (1) and is used to protect the cable, the protective mechanism (2) includes a sliding component, a control component, a positioning component and a limiting component, the sliding component is located on the outer wall of the connector body (1) and is used to protect the connected cable, the positioning component is located inside the sliding component and is used to position the sliding component, the control component is located on the outer wall of the sliding component and is used to control the positioning component, and the limiting component is located between the connector body (1) and the sliding component and is used to limit the sliding component.

2. The cast-and-fish downhole cable joint according to claim 1, characterized in that: The sliding assembly comprises a plurality of convex strips (21) fixed on the outer wall of the joint body (1) and a protective cover (22) sleeved on the outer wall of the joint body (1); a smooth portion is provided on one side of the protective cover (22), and a sliding groove is provided inside the protective cover (22) for the convex strips (21) to slide.

3. The cast-and-fish downhole cable joint according to claim 2, characterized in that: The positioning assembly comprises a receiving groove provided inside the protective cover (22) and a positioning rod (26) installed inside the receiving groove. A positioning hole for inserting the positioning rod (26) is provided inside the convex strip (21).

4. The cast-and-fish downhole cable joint according to claim 3, characterized in that: The control assembly includes a linkage rod (28) fixed on the top of the positioning rod (26); a control sleeve (23) is provided on the outer wall of the protective cover (22); the linkage rod (28) extends to the outer wall of the protective cover (22) and is fixed to the control sleeve (23); a moving cavity for the linkage rod (28) to move is opened on the top of the protective cover (22); a spring (27) is connected between the linkage rod (28) and the moving cavity.

5. The cast-and-fish downhole cable joint according to claim 2, characterized in that: The limiting assembly comprises a fixing sleeve (24) fixed to the outer wall of the joint body (1); a plurality of evenly distributed limiting rods (25) are fixed on one side of the fixing sleeve (24); and a plurality of limiting holes for inserting the limiting rods (25) are provided inside the protective cover (22).

6. The cast-and-fish downhole cable joint according to claim 1, characterized in that: A clamping mechanism (3) for clamping the cable connector is provided inside the connector body (1), and the clamping mechanism (3) comprises a support seat (31) and a clamping seat (32) provided inside the connector body (1); a connecting rod (33) is fixed between the support seat (31) and the connector body (1); and a driving component for driving the clamping seat (32) to move is provided between the clamping seat (32) and the connector body (1).

7. The cast-and-fish downhole cable joint according to claim 6, characterized in that: The driving assembly includes a threaded rod (34) screwed to the top of the joint body (1); a bearing (35) is fixed to the top of the clamping seat (32); the bearing (35) is connected to the threaded rod (34); two limiting columns (36) are fixed to the top of the clamping seat (32); the two limiting columns (36) are plugged into the joint body (1); the threaded rod (34) extends to the top of the joint body (1) and is installed with a rotating knob.

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