Broken wire extractor

Abstract

The utility model discloses a broken wire extractor, which is characterized in that the rear ends of a first extractor and a second extractor are locked by a locking screw, a jacking and expanding part is arranged between the first extractor and the second extractor, and a nut arranged in the first extractor is in threaded connection with a screw rod of the jacking and expanding part; and when the top expansion head of the top expansion piece is jacked into the top expansion cavity after the first extractor and the second extractor are combined by the adjusting screw rod, the first ratchet part of the first extractor and the second ratchet part of the second extractor are far away from each other. According to the technical scheme that the first ratchet part and the second ratchet part are controlled to be far away from each other through the jacking expansion piece, the broken wire extractor which is safer and more convenient is provided, and the problems that the contact area between an existing conical extractor and a broken wire is small, the broken wire is corroded and fixed to a pipe joint, the conical extractor often difficultly drives the broken wire to rotate, and the broken wire is damaged are solved. The pipe joint is difficult to take out, and even the pipe joint is possibly damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hardware tool, especially a broken screw extractor. BACKGROUND

[0002] In the maintenance process, the original installed faucet and angle valve need to be usually disassembled. Due to long time use, these faucets and angle valves can cause part of the parts to be broken and stuck in the pipe joint due to rust or aging, so the broken screw needs to be taken out first. At present, the commonly used broken screw extractor adopts the reverse thread principle, uses the conical extractor with reverse thread to be inserted into the broken screw and rotated counterclockwise, so as to screw out the broken screw. However, since the contact area of the conical extractor with the broken screw is small, and the broken screw is corroded and fixed at the pipe joint, the conical extractor is often difficult to drive the broken screw to rotate, resulting in difficulty in taking out, and even the pipe joint can be damaged. SUMMARY

[0003] The utility model discloses a broken screw extractor, lock screw tight the rear end of first extractor, second extractor, and the top expansion piece is arranged between first extractor, second extractor, the screw cap in first extractor is screwed with the screw rod of top expansion piece, when the top expansion head of top expansion piece is topped into the top expansion cavity after the combination of first extractor and second extractor, the first ratchet part of first extractor and the second ratchet part of second extractor are far away from each other. The utility model provides a more safe and convenient broken screw extractor through the technical scheme that the top expansion piece controls the first ratchet part and the second ratchet part to be far away from each other, and the technical problem that the contact area of the conical extractor with the broken screw is small, and the broken screw is corroded and fixed at the pipe joint, the conical extractor is often difficult to drive the broken screw to rotate, resulting in difficulty in taking out, and even the pipe joint can be damaged is solved.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A broken screw extractor, comprising: first extractor, second extractor, lock screw hole, top expansion piece, lock screw tight the rear end of first extractor, second extractor, and the top expansion piece is arranged between first extractor, second extractor, the screw cap in first extractor is screwed with the screw rod of top expansion piece, when the top expansion head of top expansion piece is topped into the top expansion cavity after the combination of first extractor and second extractor, the first ratchet part of first extractor and the second ratchet part of second extractor are far away from each other.

[0006] Further setting, the first extractor and the second extractor are provided with locking screw holes, top expansion head accommodating cavities, top expansion cavities and screw grooves, the locking screw is screwed with the locking screw holes of the first extractor and the second extractor to lock the rear ends of the first extractor and the second extractor, the side wall of the top expansion cavity is a top expansion surface, when the top expansion head is arranged in the top expansion head accommodating cavity, the first ratchet part and the second ratchet part are not expanded outward, and the screw rod is arranged in the screw groove.

[0007] Further setting, the top expansion head is provided with a round head, a first step, a second step and a third step, when the first step is in contact with the top expansion surface, the first ratchet part and the second ratchet part are slightly expanded, when the second step is in contact with the top expansion surface, the first ratchet part and the second ratchet part are moderately expanded, when the third step is in contact with the top expansion surface, the first ratchet part and the second ratchet part are greatly expanded, and the end surface of the screw rod is provided with a tail end adjusting rod insertion hole, and the tail end adjusting rod insertion hole is used for adjusting the relative position of the screw rod relative to the screw cap.

[0008] The utility model discloses a saw blade fixing block and the connecting strip are equipped with the saw blade positioning hole and the saw blade positioning card point of the saw blade of the inside positioning to the positioning fixed position of saw blade with the technical scheme of the saw blade fixing groove of saw blade fixing block to fix the connecting mode of the straight and stable of saw blade, has solved the structure of the connecting saw blade of the existing electric drill and changed electric saw accessory, and the straightness of saw blade leads to the technical problem of poor stability. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the perspective drawing of the utility model;

[0010] Fig. 2 It is the explosion drawing of the utility model;

[0011] Fig. 3 It is the section view of the ratchet part of the utility model in the state of not being expanded;

[0012] Fig. 4 It is the section view of the ratchet part of the utility model in the state of being slightly expanded;

[0013] Fig. 5 It is the section view of the ratchet part of the utility model in the state of being moderately expanded;

[0014] Fig. 6 It is the section view of the ratchet part of the utility model in the state of being greatly expanded;

[0015] In the drawing: the first extractor 1, the first ratchet part 11, the screw cap 12,

[0016] The second extractor 2, the second ratchet part 21,

[0017] Locking screw hole 3, locking locking screw 31,

[0018] 4. Expansion member; 5. Expansion head; 51. Round head; 52. First step; 53. Second step; 54. Third step; 55. Screw; 56. Tail end adjusting rod insertion hole.

[0019] 6. Expansion head receiving cavity; 7. Expansion cavity; 8. Expansion surface; 9. Screw groove. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figs. 1-6 The diagram shows a broken wire extractor, comprising: a first extractor 1, a second extractor 2, a locking screw hole 3, and an expansion member 4. The first extractor 1 and the second extractor 2 are each made of metal, possessing a certain strength, hardness, and toughness. A locking screw 31 locks and fixes the rear ends of the first extractor 1 and the second extractor 2, ensuring that the extractors do not loosen during operation. The expansion member 4 is positioned between the first extractor 1 and the second extractor 2. A nut 12 inside the first extractor 1 is screwed to the screw 55 of the expansion member 4. When the adjusting screw 55 pushes the expansion head 5 of the expansion member 4 into the expansion cavity 7 after the first extractor 1 and the second extractor 2 are combined, the first ratchet portion 11 of the first extractor 1 and the second ratchet portion 21 of the second extractor 2 move away from each other.

[0025] Preferably, the first extractor 1 and the second extractor 2 are provided with locking screw holes 3, top expansion head accommodating cavities 6, top expansion cavities 7, screw grooves 9, and locking screws 31 are screwed with the locking screw holes 3 of the first extractor 1 and the second extractor 2 to lock the rear ends of the first extractor 1 and the second extractor 2, the side walls of the top expansion cavities 7 are top expansion surfaces 8, the first ratchet teeth 11 and the second ratchet teeth 21 are not expanded outward when the top expansion head 5 is arranged in the top expansion head accommodating cavities 6, and the screw rods 55 are arranged in the screw grooves 9.

[0026] Preferably, the top expansion head 5 is provided with a round head 51, a first step 52, a second step 53, and a third step 54, the first ratchet teeth 11 and the second ratchet teeth 21 are slightly expanded when the first step 52 is in contact with the top expansion surface 8, the first ratchet teeth 11 and the second ratchet teeth 21 are moderately expanded when the second step 53 is in contact with the top expansion surface 8, the first ratchet teeth 11 and the second ratchet teeth 21 are greatly expanded when the third step 54 is in contact with the top expansion surface 8, and the end surface of the screw rod 55 is provided with a tail end adjusting rod insertion hole 56, and the tail end adjusting rod insertion hole 56 is used for adjusting the relative position of the screw rod 55 relative to the nut 12.

[0027] In actual operation, the user places the broken wire extractor on the broken screw. By rotating the adjusting screw rod 55, the top expansion head 5 gradually pushes the ratchet teeth 11 and 21 outward to expand and tightly contact the broken wire. As the top expansion head 5 gradually contacts the top expansion surface 8, the clamping force of the extractor gradually increases until the ratchet teeth 11 and 21 completely clamp the broken wire. At this time, by rotating the extractor, the broken wire can be rotated to be smoothly taken out.

[0028] The utility model discloses a top expansion piece 4 is arranged to adjust the opening and closing of the ratchet teeth 11 and 21 between the first extractor 1 and the second extractor 2, which significantly improves the adaptability and working efficiency of the extractor. Compared with the prior art, the utility model has a breakthrough in contact area and clamping force, can effectively solve the problem that the conical extractor cannot drive the broken wire to rotate, and will not damage the pipe joint during operation. By adjusting the screw rod 55 to accurately control the expansion degree, the user can flexibly adjust according to the actual situation to ensure the efficiency and safety of the broken wire extraction.

[0029] Although the utility model has been described in the foregoing with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the disclosed embodiments of the utility model can be combined in any way, and the combinations are not exhaustively described in the specification only for the purpose of saving space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A broken filament extractor characterized by, The utility model relates to a kind of first extractor (1), second extractor (2), locking screw hole (3), top expansion (4), locking screw (31) is locked to the rear end of first extractor (1), second extractor (2), top expansion (4) is arranged between first extractor (1), second extractor (2), screw nut (12) set in first extractor (1) and the screw joint of screw rod (55) of top expansion (4), when adjusting screw rod (55) top expansion head (5) of top expansion (4) is top into the top expansion cavity (7) after the combination of first extractor (1) and second extractor (2), first ratchet part (11) of first extractor (1) and second ratchet part (21) of second extractor (2) are mutually far away. First extractor (1) and second extractor (2) are provided with: locking screw hole (3), top expansion head accommodating cavity (6), top expansion cavity (7), screw rod slot (9), locking screw (31) and the locking screw hole (3) of first extractor (1) and second extractor (2) are screwed to lock the rear end of first extractor (1), second extractor (2), the side wall of top expansion cavity (7) is top expansion surface (8), when top expansion head (5) is arranged in top expansion head accommodating cavity (6), first ratchet part (11), second ratchet part (21) is not expanded outward, screw rod (55) is arranged in screw rod slot (9).

2. A broken filament extractor according to claim 1, characterized in that: Top expansion head (5) is provided with: round head (51), first step (52), second step (53), third step (54), when first step (52) is contacted with top expansion surface (8), first ratchet part (11), second ratchet part (21) is slightly expanded, when second step (53) is contacted with top expansion surface (8), first ratchet part (11), second ratchet part (21) is expanded in medium, when third step (54) is contacted with top expansion surface (8), first ratchet part (11), second ratchet part (21) is greatly expanded, the end surface of screw rod (55) is provided with tail end adjusting rod insertion hole (56), tail end adjusting rod insertion hole (56) is used to adjust the relative position of screw rod (55) relative to screw nut (12).

3. A broken filament extractor according to claim 2, wherein: ​

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