A measuring and adjusting linkage instrument armored cable connector

Abstract

The utility model relates to cable connection tool technical field especially relates to a kind of armored cable connector of surveying and adjusting linkage instrument, it includes the main body connecting pipe and cable output end connected head to tail, the top end of main body connecting pipe is equipped with the fishing fish top middle and is equipped with the axial through wiring hole, bottom is equipped with anti-rotation slot, cable output end is equipped with sealed electrode rubber cap inside, bottom is equipped with output electrode, armored cable center work cable passes through sealed electrode rubber cap and is connected with output electrode;Armored cable is equipped with the anti-rotation pressing terminal matched with anti-rotation slot;Armored cable is equipped with upper pressing terminal above fishing fish top. The utility model provides a kind of armored cable connector of surveying and adjusting linkage instrument, by being equipped with fishing fish top, it is convenient to fish, by armored cable is inserted into main body connecting pipe and cable output end, reduce the working difficulty and workload in the process of joint production, reduce the corrosion degree of armored wire in the working process simultaneously, to reduce cable consumption.

Description

Technical Field

[0001] This utility model relates to the field of cable connection tool technology, and in particular to an armored cable connector for a measurement and adjustment linkage instrument. Background Technology

[0002] To achieve the effects of linkage testing and adjustment between devices, cables are needed to connect the devices involved. For safety reasons, armored cables are usually used for installation. However, the surface of the armored cable is covered with an armor layer made of 32 high-carbon steel wires or sulfur-resistant alloy steel wires. The armor layer needs to be treated before the armored cable can be connected to the cable head. In existing technologies, when connecting armored cables to the cable head, it is necessary to remove 32 steel wires from the surface of the armored cable and evenly insert them into 20 holes at the end of the connector. This process is cumbersome and complex. Furthermore, during the work, the insulation of each steel wire must be removed and the insertion force must be uniform to ensure that the cable does not deform or slip after being squeezed by the test plug after being lowered into the well. This process is time-consuming. In addition, during normal testing, cable head installation is required at least twice a month. Because the cable is connected in a distributed manner, individual steel wires corrode severely during use, requiring remaking and increasing cable loss. During cable head installation, the outer steel wires need to be removed at intervals, and the remaining steel wires need to be tightened sequentially. It is difficult to achieve consistent tightening during this process, resulting in poor installation quality. Because the tightening force of the locking nut in the end cap is difficult to control, it is difficult to break the cable when it gets stuck during underground work, or the instrument may fall due to shaking during lowering and raising. Existing cable head connections cannot determine whether the connection is sufficient for testing. Therefore, to address these shortcomings, a new armored cable connector for a test and adjustment linkage instrument is proposed. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The purpose of this invention is to provide an armored cable connector for a measurement and adjustment linkage instrument, so as to overcome the problems of cumbersome cable head installation, high cable loss, unstable installation effect, difficulty in retrieval, and inability to judge the connection effect in the prior art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides an armored cable connector for a measurement and adjustment linkage instrument, comprising:

[0007] The main connecting pipe and cable output end are provided. The top of the main connecting pipe is equipped with a fish-catching top, and the top of the cable output end is connected to the bottom of the main connecting pipe. The fish-catching top has an axially penetrating wiring hole in the middle, and a limiting anti-rotation groove perpendicular to the wiring hole is located in the middle of the bottom of the fish-catching top. The bottom of the cable output end has a downward-protruding output electrode at the center, and a tubular sealing electrode cap at the top. An armored cable is installed in the wiring hole in the middle of the fish-catching top. The bottom of the armored cable passes through the wiring hole, the main connecting pipe, and the sealing electrode cap from top to bottom and then connects to the output electrode. The armored cable has an anti-rotation pressing terminal, the position and shape of which correspond to the limiting anti-rotation groove.

[0008] Preferably, the armored cable is provided with an upper pressing terminal, which is located above the top of the fish being caught and its bottom end is fixed to the top of the fish being caught.

[0009] Preferably, the main connecting pipe has an inner window with a rectangular opening on its side wall, and a protective cover is provided outside the main connecting pipe. The protective cover has an outer window with a rectangular opening. The position and shape of the outer window correspond to those of the inner window, and the protective cover is detachably connected to the main connecting pipe.

[0010] Preferably, a fixing screw is provided between the protective cover and the main connecting pipe, and the protective cover is connected to the main connecting pipe by the fixing screw.

[0011] Preferably, after the protective cover is connected to the main body connecting pipe by fixing screws, the outer window and the inner window are misaligned with each other.

[0012] Preferably, a straightening component is provided outside the main connecting tube, and the diameter of the straightening component is larger than the diameter of the main connecting tube but smaller than the diameter of the output electrode.

[0013] Preferably, the straightening component includes two mounting rings with a plurality of spring strips between the two mounting rings, the two mounting rings being parallel to each other and concentrically arranged; the spring strips are strip-shaped and symmetrically bent inward at both ends.

[0014] Preferably, the upper and lower ends of the spring strip are respectively connected to two mounting rings, and the spring strips are evenly arranged circumferentially on the mounting rings.

[0015] The armored cable connector for a measurement and adjustment linkage instrument provided by this utility model has the following beneficial effects:

[0016] The armored cable connector for the measurement and adjustment linkage instrument provided by this utility model has a fish-shaped retrieval top at the top of the main connecting pipe to facilitate retrieval when the device encounters a stuck object downhole. By inserting the armored cable into the main connecting pipe and the cable output end, the joint can be made simply by removing the outer steel wire of the cable during the joint manufacturing process. It is not necessary to remove the steel wire at intervals or insert it into the installation hole, which reduces the difficulty and workload of the joint manufacturing process. At the same time, since it is not necessary to separate the steel wire in the armored cable, the degree of corrosion of the steel wire during operation is reduced, thereby reducing cable consumption. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the armored cable connector for the measurement and adjustment linkage instrument;

[0018] Figure 2 This is a cross-sectional view of the armored cable connector for the measurement and adjustment linkage instrument.

[0019] Figure 3 This is a structural diagram of the straightening assembly for the armored cable connector of the measurement and adjustment linkage instrument;

[0020] Figure 4 This is a structural diagram of the main connecting pipe of the armored cable connector for the measurement and adjustment linkage instrument.

[0021] Legend:

[0022] 1. Fish retrieval top; 2. Main connecting pipe; 3. Straightening component; 4. Protective cover; 5. Fixing screw; 6. Upper pressing terminal; 7. Anti-rotation pressing terminal; 8. Sealing electrode cap; 9. Cable output end; 10. Armored cable; 11. Output electrode. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4As shown, this utility model provides an armored cable connector for a measurement and adjustment linkage instrument, comprising: a main connecting pipe 2 and a cable output end 9. The top of the main connecting pipe 2 is provided with a "fish-catching top" 1, and the top of the cable output end 9 is connected to the bottom of the main connecting pipe 2. A new cable joint is formed by connecting the main connecting pipe 2 and the cable output end 9. The cable output end 9 serves as the output end of the new cable joint, connecting to the wiring inside the cable and then to the joint of the target equipment, thereby realizing signal and power transmission between the cable and the target equipment. The main connecting pipe 2 is used to install the target cable, fixing the cable inside the main connecting pipe 2 during operation. This protects the target cable and fixes its position, preventing signal transmission interruption due to force, shaking, rotation, or breakage of the target cable during underground operation. With the fish-shaped retrieval top 1 installed at the top of the main connecting pipe 2, when the device gets stuck or needs to be moved in the well, the retrieval equipment can be directly dropped into the well. The fish-shaped retrieval top 1 can work with the retrieval equipment and be lifted and lowered smoothly in the well under the drive of the retrieval equipment, preventing the device from shaking during the lifting and lowering process and causing other equipment and devices in the well to fall into the well, thus improving the stability and safety of the working process in the well.

[0025] The fish-fish top 1 has an axially penetrating wiring hole at its center, and a limiting anti-rotation groove perpendicular to the wiring hole at its bottom center. An armored cable 10 is installed within the wiring hole in the center of the fish-fish top 1. The wiring hole in the center of the fish-fish top 1 is used to install the target cable. During installation, the armored cable 10 passes through the wiring hole, through the fish-fish top 1, and into the main connecting pipe 2. The main connecting pipe 2 and the fish-fish top 1 simultaneously fix and protect the armored cable 10.

[0026] The armored cable 10 is equipped with an anti-rotation pressing terminal 7. The position and shape of the anti-rotation pressing terminal 7 correspond to the limiting anti-rotation slot, and the size of the anti-rotation pressing terminal 7 is larger than the wiring hole. The anti-rotation pressing terminal 7 and the anti-rotation slot work together to fix the position of the armored cable 10, preventing the armored cable 10 from rotating under force and separating from the joint during the process of being lowered into the well after connection, thus improving the stability of the device. Under normal circumstances, the anti-rotation slot is opened at the lowest end of the fish-top 1 inside the main connecting pipe 2. The anti-rotation slot intersects with the wiring hole, and the armored cable 10 will definitely pass through the anti-rotation slot when passing through the wiring hole. After pressing the anti-rotation pressing terminal 7 onto the armored cable 10, the anti-rotation pressing terminal 7 is inserted into the anti-rotation slot. At this time, the anti-rotation pressing terminal 7 engages with the anti-rotation slot. After pressing, the position between the anti-rotation pressing terminal 7 and the armored cable 10 is fixed. At this time, if the armored cable 10 is rotated or pulled upward, the armored cable 10 cannot rotate or move upward in the wiring hole under the action of the anti-rotation pressing terminal 7, thereby achieving the fixation of the position of the armored cable 10 and the anti-rotation operation, improving the stability of the device.

[0027] Typically, to facilitate processing and ensure the stability of the device, the anti-rotation pressing terminal 7 is usually hexagonal prism-shaped and its size matches the width of the anti-rotation slot. The side length of the anti-rotation pressing terminal 7 is the same as the length of the anti-rotation slot, and the radius of the inscribed circle of the cross-section of the hexagonal prism-shaped anti-rotation pressing terminal 7 matches the width of the anti-rotation slot. After the armored cable 10 is passed through the wiring hole, the operator uses hydraulic pliers or other pressure tools to press the anti-rotation crimping terminal 7 onto the armored cable 10. At this time, the anti-rotation crimping terminal 7 and the armored cable 10 are fixedly connected. Then, the armored cable 10 is lifted, and the armored cable 10 drives the anti-rotation crimping terminal 7 to move upward along the wiring hole until the anti-rotation crimping terminal 7 falls into the anti-rotation slot. At this time, the anti-rotation crimping terminal 7 and the anti-rotation slot cooperate to fix the armored cable 10. Because the outer wall of the anti-rotation crimping terminal 7 is tightly attached to the inner wall of the anti-rotation slot after it falls into the anti-rotation slot and its size is larger than the wiring hole, the anti-rotation crimping terminal 7 cannot rotate or continue to move upward in the anti-rotation slot, thereby preventing the armored cable 10 from rotating and moving upward.

[0028] It should be noted that the anti-rotation crimping terminal 7 is usually made of aluminum. During the crimping process, a suitably sized aluminum tube is fitted onto the crimping position on the armored cable 10, and then hydraulic equipment such as hydraulic pliers is used to press the aluminum tube onto the armored cable 10 into a hexagonal prism shape, forming the anti-rotation crimping terminal 7. In actual operation, the material and shape of the anti-rotation crimping terminal 7 can be adjusted according to the on-site working environment.

[0029] In this invention, the bottom of the cable output end 9, located at its center, is provided with a downwardly protruding output electrode 11, and the top is provided with a tubular sealing electrode cap 8. The cable output end 9 serves as a connector connecting the armored cable 10 and the downhole equipment. During operation, it needs to simultaneously connect the working cable within the armored cable 10 and the connector of the downhole equipment. One end of the output electrode 11 can be inserted into the signal connector of the downhole equipment, while the other end is located inside the main connecting pipe 2 and connected to the working cable within the armored cable 10, thereby transmitting the power or signal from the working cable within the armored cable 10 to the connector of the downhole equipment. During operation, after the operator passes the armored cable 10 through the main connecting pipe 2, it is not necessary to remove the outer steel wires of the armored cable 10 at intervals. Instead, the outer layer of the armored cable 10 is completely removed at its end, exposing the internal working cable. After connecting the working cable to the top of the output electrode 11, insulation and waterproofing treatment is applied at the connection point to complete the cable connector fabrication. The workflow is simple and the work difficulty is low, greatly improving the efficiency of cable connector fabrication and reducing the time required for cable connector fabrication from 2 hours in the prior art to 10 minutes.

[0030] The sealing electrode cap 8 protects the working cable inside the armored cable 10. After removing the outer layer of the armored cable 10, the working cable inside the armored cable 10 is passed through the sealing electrode cap 8 and then connected to the output electrode 11, thus fixing the position of the working cable. Typically, the sealing electrode cap 8 is made of a highly elastic and insulating material such as rubber. When the working cable passes through the sealing electrode cap 8, the cap 8 contracts inward under its own elasticity, tightly wrapping the working cable, thus providing insulation and waterproof protection, preventing damage or short circuits caused by contact between the working cable and downhole fluid during operation. During operation, the operator inserts the armored cable 10 from top to bottom into the main connecting pipe 2. The bottom end of the armored cable 10 passes through the wiring hole, the main connecting pipe 2, and the sealing electrode cap 8 sequentially from top to bottom before connecting to the output electrode 11.

[0031] It should be noted that the armored cable 10 is equipped with an upper pressing terminal 6, which is located above the fishing top 1 and its bottom end is fixed to the top end of the fishing top 1. The upper pressing terminal 6 serves as a safety marker during the operation of the device. After the armored cable 10 and the output electrode 11 are installed and connected, the anti-rotation pressing terminal 7 is inserted into the anti-line slot. At this time, the position of the armored cable 10 is the position during downhole operation. After the working position of the armored cable 10 is determined, the upper pressing terminal 6 is installed on the armored cable 10. Usually, the upper pressing terminal 6 is inserted into the armored cable 10 before it is inserted into the wiring hole. After the armored cable 10 is inserted into the wiring hole, the upper pressing terminal 6 is located above the fishing top 1. After the working position of the armored cable 10 is determined, use hydraulic pliers or other tools to fix the upper crimping terminal 6 to the top of the fish-catching top 1. At this time, the positions of the upper crimping terminal 6 and the armored cable 10 are fixed. By observing the positional relationship between the upper crimping terminal 6 and the top of the fish-catching top 1, it can be determined whether the connection between the armored cable 10 and the cable output end 9 is loose. When the upper crimping terminal 6 separates from the top of the fish-catching top 1, it indicates that the armored cable 10 has moved upward, and at this time, the connection of the armored cable 10 in the main connecting pipe 2 is loose.

[0032] like Figure 4As shown, the main connecting pipe 2 has an inner window with a rectangular opening on its side wall, and a protective cover 4 is provided outside the main connecting pipe 2. The protective cover 4 has an outer window with a rectangular opening. The outer window corresponds to the inner window in position and shape, and the protective cover 4 is detachably connected to the main connecting pipe 2. Normally, the protective cover 4 is tubular. By providing an inner window on the main connecting pipe 2, when connecting the armored cable 10 to the electrode output terminal 9, the armored cable 10 can be passed through the inner window first before the anti-rotation crimping terminal 7 is crimped, reducing the difficulty of operation. After the connection is completed, the protective cover 4 is placed over the main connecting pipe 2. The connection status of the armored cable 10 and the cable output terminal 9 can be directly observed through the inner and outer windows, and the connection status can be adjusted and corrected, facilitating the observation of the internal working status of the device.

[0033] A fixing screw 5 is provided between the protective cover 4 and the main connecting pipe 2, and the protective cover 4 and the main connecting pipe 2 are connected by the fixing screw 5. The connection and disassembly between the main connecting pipe 2 and the protective cover 4 are completed by rotating the fixing screw 5, which is simple to operate. After the protective cover 4 and the main connecting pipe 2 are connected by the fixing screw 5, the outer window and the inner window are misaligned. Under normal circumstances, after the protective cover 4 is fixed to the main connecting pipe 2, it seals the inner window and the outer window, thereby preventing impurities such as well fluid from flowing into the main connecting pipe 2 and corroding the armored cable 10. When it is necessary to observe the inside of the main connecting pipe 2, it is only necessary to remove the fixing screw 5 and rotate the protective cover 4 to align the positions of the outer window and the inner window.

[0034] like Figure 1-3 As shown, a straightening component 3 is provided outside the main connecting pipe 2. The diameter of the straightening component 3 is larger than the diameter of the main connecting pipe 2 but smaller than the diameter of the output electrode 11. During the movement of the connector inside the well, the straightening component 3 contacts the well wall and pushes the connector into the well, achieving a straightening effect on the connector and preventing the connector from being damaged by collision with the well wall.

[0035] The straightening assembly 3 includes two mounting rings 301 with multiple spring strips 302 positioned between them. The mounting rings 301 are parallel and concentrically arranged. Each spring strip 302 is strip-shaped with both ends symmetrically bent inwards. The straightening assembly 3 is fitted over the main connecting pipe 2 via the mounting rings 301. The spring strips 302 protrude outwards between the mounting rings 301. When in contact with the well wall, the spring strips 302, under their own elasticity, push the well wall outwards, thus pushing the joint away from the well wall and preventing direct contact and damage. The upper and lower ends of each spring strip 302 are connected to the two mounting rings 301, and the spring strips 302 are evenly distributed circumferentially on the mounting rings 301, ensuring that the straightening assembly 3 can straighten the joint in all directions.

[0036] Combination Figures 1 to 4The following describes the steps for using the armored cable connector of this type of measurement and adjustment linkage instrument:

[0037] Step 1: The staff connects the main connecting pipe and the cable output end, and then inserts the upper crimped terminal onto the armored cable;

[0038] Step 2: Insert the armored cable into the wiring hole. At this point, the upper crimp terminal is located above the top of the fish being retrieved, and the bottom end of the armored cable passes through the top of the fish and into the main connecting pipe.

[0039] Step 3: Insert the anti-rotation crimping terminal into the bottom of the armored cable, crimp the anti-rotation crimping terminal, and then lift the crimped anti-rotation crimping terminal into the anti-rotation retaining slot. At this time, the anti-rotation crimping terminal and the anti-rotation retaining slot cooperate to fix the position of the armored cable, preventing the armored cable from rotating and moving upward.

[0040] Step 4: Fix the position of the upper pressing terminal. After being pressed by the hydraulic equipment, the upper pressing terminal is fixed to the top of the fish retrieval device.

[0041] Step 5: After passing the working cable through the sealing electrode cap, connect it to the output electrode and ensure waterproofing and insulation at the connection point. During this process, the outer layer of the armored cable needs to be peeled off to expose the internal working cable. Pass the working cable through the top of the sealing electrode cap and connect it to the output electrode. At this point, the power or signal transmitted within the armored cable is transmitted to the output electrode through the working cable.

[0042] Step 5: Install the protective cover. Secure the protective cover to the main connecting pipe using fixing screws to complete the joint fabrication.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of armored cable connector for a measurement and adjustment linkage instrument, characterized in that, include: The main connecting pipe (2) and the cable output end (9) are provided. The top of the main connecting pipe (2) is provided with a fish catching top (1), and the top of the cable output end (9) is connected to the bottom of the main connecting pipe (2). The fish catching top (1) is provided with a wiring hole that runs through the axial direction in the middle position, and the bottom of the fish catching top (1) is provided with a limiting anti-rotation groove that is perpendicular to the wiring hole in the middle position. The bottom of the cable output end (9) is provided with a downward protruding output electrode (11), and the top is provided with a tubular sealing electrode cap (8). The wiring hole in the middle of the fish catching top (1) is provided with an armored cable (10). The bottom of the armored cable (10) passes through the wiring hole, the main connecting pipe (2) and the sealing electrode cap (8) from top to bottom and then connects to the output electrode (11). The armored cable (10) is provided with an anti-rotation pressing terminal (7), and the position and shape of the anti-rotation pressing terminal (7) are corresponding to the limiting anti-rotation groove.

2. The armored cable connector for the measurement and adjustment linkage instrument according to claim 1, characterized in that, The armored cable (10) is provided with an upper pressing terminal (6), which is located above the fish catching top (1) and its bottom end is fixed to the top end of the fish catching top (1).

3. The armored cable connector for the measurement and adjustment linkage instrument according to claim 1, characterized in that, The main connecting pipe (2) has an inner window with a rectangular opening on its side wall, and a protective cover (4) is provided on the outside of the main connecting pipe (2). The protective cover (4) has an outer window with a rectangular opening. The position and shape of the outer window correspond to the inner window. The protective cover (4) and the main connecting pipe (2) are detachably connected.

4. The armored cable connector for the measurement and adjustment linkage instrument according to claim 3, characterized in that, A fixing screw (5) is provided between the protective cover (4) and the main connecting pipe (2), and the protective cover (4) and the main connecting pipe (2) are connected by the fixing screw (5).

5. The armored cable connector for the measurement and adjustment linkage instrument according to claim 4, characterized in that, After the protective cover (4) is connected to the main connecting pipe (2) by fixing screws (5), the outer window and the inner window are misaligned.

6. The armored cable connector for the measurement and adjustment linkage instrument according to any one of claims 1-5, characterized in that, The main connecting tube (2) is provided with a straightening component (3), the diameter of which is larger than the diameter of the main connecting tube (2) and smaller than the diameter of the output electrode (11).

7. The armored cable connector for the measurement and adjustment linkage instrument according to claim 6, characterized in that, The straightening component (3) includes two mounting rings (301) and multiple spring strips (302) are provided between the two mounting rings (301). The two mounting rings (301) are parallel to each other and concentrically arranged. The spring strips (302) are strip-shaped and symmetrically bent inward at both ends.

8. The armored cable connector for the measurement and adjustment linkage instrument according to claim 7, characterized in that, The upper and lower ends of the spring strip (302) are respectively connected to two mounting rings (301), and the spring strip (302) is evenly arranged circumferentially on the mounting rings (301).

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