Stud dismounting tool

Abstract

The utility model provides a stud dismounting tool which comprises a stud, an internal thread sleeve and a tool withdrawal groove, the internal thread sleeve is sleeved on the outer side of the stud in a threaded mode, the tool withdrawal groove is arranged on the inner side of the internal thread sleeve, the thread directions of the internal thread sleeve above and below the tool withdrawal groove are opposite, and a screw column is sleeved inside the top end of the internal thread sleeve in a threaded mode. A clamping plate is clamped to the inner side of the top end of the screw column, and a fixing sleeve located on the inner side of the tool withdrawal groove sleeves the outer side of the bottom end of the screw column in a threaded mode. According to the stud dismounting tool, quantitative lubricating oil can be added into the stud through the oil hole, then abrasion between the stud and the steel ball can be reduced, and when the steel ball makes contact with the stud and rotates the stud, due to the fact that the lubricating oil layer is attached to the surface of the steel ball, the stud can be dismounted more stably. The friction force between the steel ball and the stud and the friction force between the steel ball and the stud are small, so that the resistance needing to be overcome in the rotating process of the stud is small, and the stud can be tightened or loosened conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of stud bolt disassembly, and specifically discloses a stud bolt disassembly tool. Background Art

[0002] Chinese patent application number CN202223094198.3 discloses a stud bolt disassembly tool, including a tool bolt and a nut, wherein a first thread segment and a second thread segment are provided inside, and the rotation direction of the first thread segment is opposite to that of the second thread segment. The tool bolt is installed in the first thread segment, and the second thread segment is installed on the stud bolt. The nut is rotated so that the end of the tool bolt and the end of the stud bolt are squeezed and locked against each other, and the nut will drive the tool bolt and the stud bolt to rotate together, so that the stud bolt can be tightened. When disassembling the stud bolt, the nut is rotated in the opposite direction with a wrench, and the stud bolt will be progressively advanced in the second thread segment, so that the end of the stud bolt is pressed against the end of the tool bolt and locked, and the nut will drive the tool bolt and the stud bolt to rotate together, so that the stud bolt can be disassembled. This stud bolt disassembly tool can effectively prevent the nut from damaging the thread on the stud bolt.

[0003] The spherical structure fixes the bottom of the tool bolt, which cannot be rotated independently, so that the friction between the tool bolt and the stud bolt is relatively large during rotation, making it inconvenient to tighten or loosen the tool bolt, and the nut and the tool bolt cannot be disassembled and assembled simultaneously using the same wrench. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a stud bolt removal tool, comprising a stud bolt, an internally threaded sleeve threadedly sleeved on the outside of the stud bolt, and a tool withdrawal groove arranged on the inner side of the internally threaded sleeve, the threads of the internally threaded sleeve located above and below the tool withdrawal groove have opposite directions, a screw column is sleeved on the internal thread of the top end of the internally threaded sleeve, a clamping plate is clamped on the inner side of the top end of the screw column, and a fixing sleeve located on the inner side of the tool withdrawal groove is sleeved on the outer thread of the bottom end of the screw column, a steel ball is sleeved between the fixing sleeve and the screw column, and a handle is arranged on the outer side of the clamping plate.

[0005] Preferably, an oil hole located above the steel ball runs through the interior of the screw column, and a sealing plug located above the oil hole is sleeved on the internal thread of the screw column.

[0006] Preferably, a slot matching the screw column is provided on the inner side of the clamping plate.

[0007] Preferably, the bottom of the screw column is provided with a sealing gasket located outside the steel ball.

[0008] Beneficial effects:

[0009] 1. The stud bolt removal tool can add a certain amount of lubricating oil into the interior of the screw column through the oil hole, thereby reducing the wear between the screw column and the steel ball. When the steel ball contacts the stud bolt and rotates the screw column, the lubricating oil layer adheres to the surface of the steel ball, so that the friction between the steel ball and the screw column and the stud bolt is small, so that the resistance that the screw column needs to overcome during the rotation process is small, so that the screw column can be tightened or loosened easily.

[0010] 2. The stud bolt removal tool clamps the clamping plate into the inner side of the internal thread sleeve and the screw column, so that the internal thread sleeve and the screw column can be rotated synchronously while the clamping plate is rotated by the handle, so that the two can be disassembled and assembled synchronously on the outer side of the stud bolt, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a cross-sectional view of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model;

[0014] Figure 3 for Figure 1 A magnified schematic diagram of the structure at center A;

[0015] Figure 4 It is a partial schematic diagram of the structure of the utility model;

[0016] Figure 5 It is a partial explosion schematic diagram of the structure of the utility model;

[0017] Figure 6 It is a schematic diagram of the internal thread sleeve of the utility model;

[0018] Figure 7 It is a schematic diagram of the pallet of the utility model;

[0019] Figure 8 It is a schematic diagram of disassembling the stud bolts of the utility model structure.

[0020] In the figure: 1. stud bolt; 2. internal thread sleeve; 3. back cutter groove; 4. screw column; 5. clamping plate; 6. fixing sleeve; 7. steel ball; 8. handle; 9. oil hole; 10. sealing plug; 11. clamping groove; 12. sealing gasket. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0023] See also Figure 1-8 A stud bolt removal tool comprises a stud bolt 1, an internal threaded sleeve 2 threadedly sleeved on the outside of the stud bolt 1, and a knife retreat groove 3 arranged on the inner side of the internal threaded sleeve 2, the threads of the internal threaded sleeve 2 located above and below the knife retreat groove 3 have opposite directions, a screw column 4 is sleeved on the internal thread of the top of the internal threaded sleeve 2, a clamping plate 5 is clamped on the inner side of the top of the screw column 4, and a fixing sleeve 6 located on the inner side of the knife retreat groove 3 is sleeved on the outer thread of the bottom end of the screw column 4, a steel ball 7 is sleeved between the fixing sleeve 6 and the screw column 4, and a handle 8 is arranged on the outer side of the clamping plate 5.

[0024] Among them, the interior of the screw column 4 is penetrated by an oil hole 9 located above the steel ball 7. Lubricating oil can be added to the interior of the screw column 4 through the oil hole 9 and the steel ball 7 can be lubricated by the lubricating oil at the same time, so as to reduce the friction between the screw column 4 and the steel ball 7, and the internal thread of the screw column 4 is sleeved with a sealing plug 10 located above the oil hole 9. The sealing plug 10 can block and seal the oil hole 9 to prevent external dust from entering the interior of the oil hole 9, making it difficult for the oil hole 9 to be blocked.

[0025] Among them, a slot 11 adapted to the screw column 4 is opened on the inner side of the clamping plate 5, and the slot 11 allows the clamping plate 5 to be clamped into the outer side of the top of the screw column 4 when placed horizontally. At this time, when the screw column 4 is rotated by the handle 8, the top of the screw column 4 is not easy to bend and deform, and after the internal threaded sleeve 2 and the screw column 4 are tightened, the screw column 4 can drive the internal threaded sleeve 2 to rotate and drive the stud bolt 1 to rotate in the opposite direction synchronously by rotating the screw column 4 in the opposite direction, so as to facilitate the disassembly of the stud bolt 1.

[0026] Among them, the bottom of the screw column 4 is equipped with a sealing gasket 12 located on the outside of the steel ball 7. The sealing gasket 12 can seal the gap between the screw column 4 and the fixing sleeve 6, thereby preventing the lubricating oil inside the oil hole 9 from leaking to the outside of the fixing sleeve 6.

[0027] When the tool is used, after the inner threaded sleeve 2 is sleeved on the outer side of the stud bolt 1, the clamping plate 5 is clamped into the inner side of the inner threaded sleeve 2 and the screw column 4, and the screw column 4 and the clamping plate 5 are rotated by the handle 8. When the steel ball 7 contacts the end face of the stud bolt 1, it can be lubricated by the lubricating oil on the surface of the steel ball 7. After the inner threaded sleeve 2 and the screw column 4 are tightened and fixed on the outer side of the stud bolt 1, the clamping plate 5 is taken out from the inner side of the inner threaded sleeve 2 and the screw column 4, and the clamping plate 5 is clamped into the outer side of the top end of the screw column 4 horizontally through the clamping groove 11. The handle 8 can be used to rotate the clamping plate 5 in the opposite direction while the screw column 4 can be further tightened. The pressure generated between the steel ball 7 and the stud bolt 1 makes the inner threaded sleeve 2 still fixed on the outer side of the stud bolt 1. The rotation of the screw column 4 can drive the inner threaded sleeve 2 to rotate while enabling the stud bolt 1 to rotate in the opposite direction synchronously, thereby removing the stud bolt 1. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A stud bolt removal tool, comprising a stud bolt (1), an internal thread sleeve (2) threadedly sleeved on the outside of the stud bolt (1), and a tool recess (3) arranged on the inside of the internal thread sleeve (2), characterized in that: The threads of the internal threaded sleeve (2) located above and below the tool retreat groove (3) are in opposite directions. The internal threaded sleeve at the top of the internal threaded sleeve (2) is connected to a screw column (4). The inner side of the top of the screw column (4) is clamped with a clamping plate (5). The outer threaded sleeve at the bottom of the screw column (4) is connected to a fixing sleeve (6) located inside the tool retreat groove (3). A steel ball (7) is sleeved between the fixing sleeve (6) and the screw column (4). A handle (8) is arranged on the outer side of the clamping plate (5).

2. A stud bolt removal tool according to claim 1, characterized in that: The screw column (4) is penetrated by an oil hole (9) located above the steel ball (7), and the internal thread of the screw column (4) is sleeved with a sealing plug (10) located above the oil hole (9).

3. A stud bolt removal tool according to claim 1, characterized in that: A clamping groove (11) adapted to the screw column (4) is provided on the inner side of the clamping plate (5).

4. A stud bolt removal tool according to claim 1, characterized in that: The bottom of the screw column (4) is sleeved with a sealing gasket (12) located outside the steel ball (7).

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