Internal hexagonal slip extractor

Abstract

The utility model belongs to the technical field of manual tools, and particularly relates to an inner hexagonal slippage extractor which comprises an extracting part and a handle part, and the extracting part is provided with an end face edge with the end face being 45 degrees and a side edge with the wedge angle being 60 degrees. An inner hexagonal hole in the tail of an inner hexagonal bolt made of carbon steel and used in severe environments such as high temperature and high humidity for a long time is seriously rusted, the actual size of the inner hexagonal hole is increased along with falling of a rusted layer, and a threaded part is difficult to disassemble due to corrosion and the like. When a common internal hexagonal wrench is used, an internal hexagonal hole is easy to slip off, and the bolt cannot be disassembled. In order to solve the problem, a special taking-out device is invented and manufactured, protruding cutting edges are machined at the edges of a hexagonal prism of the corresponding specification, the taking-out part of the tool is wedged into an inner hexagonal hole in the tail of the inner hexagonal bolt through knocking, all the faces of the hexagonal prism are squeezed more and more tightly in the hexagonal hole under the wedging effect of the cutting edges of the side edges, and the bolt is screwed out smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of hand tools, and particularly relates to an internal hexagonal slipping extractor. Background Technique

[0002] As a kind of fastener, the internal hexagonal bolt is widely used and can be found on mechanical equipment used in various industries, so the usage amount is very large. Some bolts are in harsh working environments of high temperature and high humidity for a long time. The internal hexagonal holes at the tails of the internal hexagonal bolts made of carbon steel are corroded. During disassembly, the rust layers in the hexagonal holes fall off and the hexagonal dimensions become larger. Some bolts have too large pre-tightening force and disassembly torque. During the disassembly process with an ordinary internal hexagonal wrench, the internal hexagonal hole slips, resulting in the situation that the internal hexagonal bolt often slips during disassembly, making it impossible to remove the bolt.

[0003] An internal hexagonal slipping extractor of the present invention is a manual tool manufactured to solve this problem. The entire operation process does not require power and additional electric tools, and has a wider application range. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internal hexagonal slipping extractor.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an internal hexagonal slipping extractor, including an extraction part and a handle part. The extraction part is provided with an end face edge with an end face angle of 45° and a side edge with a wedge angle of 60°. The height of the side edge of the extraction part is where A is the dimension between the opposite sides at the lowest part of the side edge, and C is the dimension between the opposite sides at the highest part of the side edge.

[0006] Specifically, the length dimension B of the extraction part is a standard size or a non-standard size.

[0007] Specifically, the length D of the handle part is 30 mm.

[0008] The utility model has the following beneficial effects: A protruding edge is processed at the edge of the corresponding specification hexagonal prism. By knocking, the extraction part of the tool is wedged into the internal hexagonal hole at the tail of the internal hexagonal bolt. Due to the wedging action of the edge of the side edge, each face of the hexagonal body is squeezed tighter and tighter in the hexagonal hole, and the bolt can be smoothly screwed out, which is simple and practical. Description of the Drawings

[0009] Figure 1 It is the structural schematic diagram (one) of the utility model.

[0010] Figure 2 It is the structural schematic diagram (two) of the utility model.

[0011] Figure 3This is the structural schematic diagram (III) of the present utility model.

[0012] Figure 4 This is the structural schematic diagram of the hexagon socket head cap screw.

[0013] In the figure: 1 - extraction part; 2 - handle part; 3 - end face edge; 4 - side edge. Specific embodiments

[0014] Now, the present utility model will be further described in detail with reference to the accompanying drawings.

[0015] As Figures 1-4 shown, a hexagon socket slip-out extractor is composed of an extraction part 1 and a handle part 2. Among them, the extraction part 1 is processed to form an end face edge with an angle of 45° to the end face and a side edge with a wedge angle of 60°.

[0016] The height of the side edge 4 of the extraction part 1 is A is the dimension between the opposite sides at the lowest point of the side edge (the dimension of a standard hexagon socket wrench), and C is the dimension between the opposite sides at the highest point of the side edge, which determines the height of the side edge 4.

[0017] The length dimension B of the extraction part 1 is divided into standard dimensions and non-standard dimensions. The standard dimension is 20 mm, and the non-standard dimensions are lengthened by 50 mm, 100 mm... etc. as required, which is convenient for use in some special occasions.

[0018] The length D of the handle part 2 is 30 mm, and the width of the handle part is E, and E is a series of dimensions.

[0019] The 45° angle of the end face edge 3 of the extraction part 1 is obtained by grinding the end face edge, and at the same time, a sharp edge is formed, which can ensure good guidance when inserted into the hexagon hole and can be easily driven in with a hammer.

[0020] Table 1: Parameter table of the hexagon socket head cap screw slip-out extractor (unit: mm)

[0021]

[0022] The using method of the present utility model: When the hexagon socket head cap screw cannot be removed due to the slip of the hexagon hole, select the corresponding specification of this extractor, align the end face edge 3 of its working part 1 with the six corners of the hexagon hole, and drive it into the hexagon hole of the hexagon socket head cap screw with a hammer. In this process, the end face edge 3 plays the main role of cutting into the hole wall. Then, use a socket wrench or a universal wrench to hold the handle part 2 of the extractor and rotate it counterclockwise (for ordinary right-handed threads). At this time, the side edge 4 firmly wedges into the hexagon hole wall, making the deformed hole wall clamp the extractor tightly. As the extractor continues to rotate, the bolt can be removed.

[0023] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hexagonal internal slip-out extractor, characterized in that: It includes a take-out part and a handle part, wherein the take-out part is provided with an end face edge with an end face angle of 45° and a side edge with a wedge angle of 60°, and the height of the side edge of the take-out part is Where A is the dimension between the opposite sides at the lowest point of the side edge, and C is the dimension between the opposite sides at the highest point of the side edge.

2. The hexagonal internal slip-off extractor according to claim 1, characterized in that: The length D of the handle is 30 mm.

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