Reverse tap broken thread extractor

Abstract

The utility model relates to a broken wire extractor, in particular to a broken wire extractor for a reverse tap. A broken thread extractor for a reverse tap comprises a tap head and a tap handle, the tap head and the tap handle are integrally formed, a first wrench position and a second wrench position are arranged on the upper portion of the tap handle, and a groove used for driving is formed in the first wrench position; the lower part is connected with an oil storage box; the outer side of the rolling bearing is connected with a telescopic sleeve, an oil outlet is formed in the bottom of the oil storage box, and the oil storage box discharges lubricating oil through the oil outlet. The telescopic sleeve comprises a first-stage sleeve, a second-stage sleeve and a telescopic air cylinder, the inner wall of the second-stage sleeve is attached to the outer wall of the first-stage sleeve, the second-stage sleeve is connected with the telescopic end of the telescopic air cylinder, and the inner wall of the first-stage sleeve is connected to the outer wall of the rolling bearing. According to the utility model, a broken wire or a rubber tube broken joint can be easily taken out from a metal part without being caught with auxiliary devices such as an electric welding machine and the like.

Description

Technical Field

[0001] This utility model relates to a broken wire extractor, specifically a broken wire extractor using a reverse tap. Background Technology

[0002] When installing or securing metal parts, screws or broken hose connectors can easily break due to improper installation or the removal of old, rusty screws. Removing screws or broken hose connectors embedded in metal parts is difficult. Common methods include welding a nut to the broken screw or connector and then unscrewing it. However, this method requires a welding machine and has limitations. Alternatively, one method involves directly hammering the broken screw or connector to remove it. This method may damage the threads of the connected metal parts or the integrity of the hose connection. Utility Model Content

[0003] The purpose of this invention is to provide a reverse tap broken wire extractor, which solves the problem of difficulty in removing screws or broken hose connectors that are broken inside metal parts.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A reverse tap broken wire extractor includes a taper head and a taper shank, which are integrally formed. The upper part of the taper shank is provided with a first wrench position and a second wrench position. The first wrench position is provided with a groove for driving. A rolling bearing is connected in the middle and an oil reservoir is connected in the lower part. A telescopic sleeve is connected to the outside of the rolling bearing. The bottom of the oil reservoir is provided with an oil outlet hole, through which the oil reservoir discharges lubricating oil.

[0006] Furthermore, the telescopic sleeve includes a primary sleeve, a secondary sleeve, and a telescopic cylinder. The inner wall of the secondary sleeve is fitted with the outer wall of the primary sleeve. The secondary sleeve is connected to the telescopic end of the telescopic cylinder. The inner wall of the primary sleeve is connected to the outer wall of the rolling bearing.

[0007] Furthermore, the primary sleeve is provided with multiple guide grooves along the circumference, and the inner side of the secondary sleeve is provided with guide blocks adapted to the guide grooves along the circumference. The guide blocks are slidably connected in the guide grooves; the telescopic cylinder is connected to the outer side of the rolling bearing through a fixed plate.

[0008] Furthermore, the cone head is conical in shape, with multiple teeth distributed circumferentially, and a buffer section is provided between adjacent teeth.

[0009] Furthermore, the first wrench position is located above the second wrench position, and the first and second wrench positions are respectively hexagonal with cross-shaped grooves.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0011] This invention features a telescopic sleeve on the outside of the cone-shaped part. The sleeve engages between the broken wire or hose connector and the metal component. A technician then uses a tool to drive the device, allowing the cone to enter the broken wire or hose connector. The cone provides rotational and outward pulling force to the connector, reducing the difficulty and increasing the efficiency of removal. Furthermore, the cone is connected to a lubricating oil outlet, allowing lubricant to drip onto the connector, reducing friction between the connector and the metal component and facilitating removal. This invention enables easy removal of broken wires or hose connectors from metal components without the need for auxiliary devices such as welding machines. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a reverse tap broken wire remover.

[0013] Figure 2 This is a cross-sectional view of a reverse tap broken wire extractor. Detailed Implementation

[0014] like Figures 1 to 2 As shown, a broken screw or hose connector embedded in a metal part will form a broken thread or a broken connector, and a broken hose connector embedded in a metal part will form a broken hose connector. Since there is no point of force, broken threads or hose connectors are difficult to remove. This solution proposes a reverse tap broken thread remover, including a taper head 1 and a taper shank 2, which are integrally formed. The upper part of the taper shank 2 has a first wrench position 21 and a second wrench position 23. The first wrench position 21 has a groove 22 for driving. A rolling bearing 12 is connected in the middle, and an oil reservoir 13 is connected at the bottom. A telescopic sleeve 3 is connected to the outside of the rolling bearing 12. The bottom of the oil reservoir 13 has an oil outlet hole, through which lubricating oil is discharged. The lubricating oil flows out through the oil outlet hole to the area between the broken screw or hose connector and the connected metal part, reducing the friction between the broken screw or hose connector and the metal part, thus facilitating the removal of the broken screw or hose connector from the metal part.

[0015] The telescopic sleeve 3 includes a primary sleeve 31, a secondary sleeve 32, and a telescopic cylinder 33. The inner wall of the secondary sleeve 32 fits against the outer wall of the primary sleeve 31. The secondary sleeve 32 is connected to the telescopic end of the telescopic cylinder 33. The inner wall of the primary sleeve 31 is connected to the outer wall of the rolling bearing 12. The metal part containing the screw or hose break is a tubular part. The telescopic cylinder 33 causes the secondary sleeve 32 to abut against the metal part. Simultaneously, a technician connects the cone 1 to the screw or hose break using the groove 22, the first wrench position 21, or the second wrench position 23. The choice of groove 22, first wrench position 21, or second wrench position 23 depends on the difficulty of removing the screw or hose break, thus achieving the purpose of connecting the cone 1 to the screw or hose break. After the cone 1 is connected to the screw or hose break, the telescopic cylinder 33 extends outward, applying a pulling force to remove the screw or hose break, improving the removal efficiency.

[0016] Currently, when removing screws or broken hose connectors using a reverse tap, after the tap 1 connects to the screw or hose connector, the technician still needs to apply rotational force to cause the screw or hose connector to rotate relative to the metal part, ultimately removing the connector. It's inconvenient for the technician to apply pulling force while applying rotational force, making this method less efficient than the device described above.

[0017] The primary sleeve 31 has multiple guide grooves 311 along its circumference, and the secondary sleeve 32 has guide blocks 312 adapted to the guide grooves 311 along its inner circumference. The guide blocks 312 are slidably connected within the guide grooves 311. When the telescopic cylinder 33 pushes the secondary sleeve 32, the secondary sleeve 32 will move stably along the guide grooves 311 under the action of the guide blocks 312, preventing relative rotation between the secondary sleeve 32 and the primary sleeve 31, effectively extending the service life of the components. The telescopic cylinder 33 is connected to the outside of the rolling bearing 12 via a fixed plate. When the technician drives the cone head 1 to rotate by driving the cone handle 2, the telescopic sleeve 3 will not rotate with it under the action of the rolling bearing 12, preventing the telescopic sleeve 3 from generating additional friction with the metal parts and reducing the efficiency of removing screws or broken hose connectors.

[0018] The cone head 1 is conical in shape, and has multiple teeth 101 distributed circumferentially. A buffer part 102 is provided between adjacent teeth 101. The oil outlet allows lubricating oil to fall directly onto the screw or hose disconnector and enter between the screw or hose disconnector and the metal part during rotation, thereby reducing the friction between the screw or hose disconnector and the metal part.

[0019] Workflow:

[0020] When it is necessary to remove the broken wire or connector, firstly, adjust the length of the telescopic sleeve 3 using the telescopic cylinder, that is, control the length of the cone 1 extending from the telescopic sleeve 3 to prevent the extension length from being too short, so that the cone 1 cannot provide sufficient rotational force to rotate the broken wire or connector. After the telescopic sleeve 3 abuts against the metal part, the oil pump causes lubricating oil to flow out from the oil outlet and enter the gap between the metal part and the broken wire or connector, reducing the friction between the broken wire or connector and the metal part. Then, using a tool such as a wrench or screwdriver, rotate the cone 1 through the cone handle 2. The cone 1 provides rotational force to the broken wire or connector, causing it to move outward. Meanwhile, the telescopic sleeve 3 abuts against the metal part, providing support force to the cone 1, so that the cone 1 also provides outward pulling force to the broken wire or connector, making it easier to remove the broken wire or connector from the metal part.

[0021] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A broken tap extractor, comprising: The cone head and the cone handle are integrally formed, the upper part of the cone handle is provided with a first wrench position and a second wrench position, the first wrench position is provided with a groove for driving; the middle part is connected with a rolling bearing, and the lower part is connected with an oil storage box; the outer side of the rolling bearing is connected with a telescopic sleeve, the bottom of the oil storage box is provided with an oil outlet hole, and the oil storage box discharges lubricating oil through the oil outlet hole.

2. A broken tap extractor according to claim 1, wherein, The telescopic sleeve comprises a primary sleeve, a secondary sleeve and a telescopic cylinder, the inner wall of the secondary sleeve is attached to the outer wall of the primary sleeve, the secondary sleeve is connected with the telescoping end of the telescopic cylinder, and the inner wall of the primary sleeve is connected to the outer wall of the rolling bearing.

3. A broken tap extractor according to claim 2, wherein, The primary sleeve is provided with a plurality of guide grooves in the circumferential direction, the inner side of the secondary sleeve is provided with guide blocks matched with the guide grooves in the circumferential direction, and the guide blocks are slidably connected in the guide grooves; the telescopic cylinder is connected with the outer side of the rolling bearing through a fixing disc.

4. A broken tap extractor according to claim 1 wherein, The cone head is conical, and a plurality of teeth are distributed in the circumferential direction of the cone head, and a buffer is arranged between adjacent teeth.

5. A broken tap extractor according to claim 1 wherein, The first wrench position is located above the second wrench position, the first wrench position and the second wrench position are hexagonal respectively, and the groove is cross-shaped.

Images