Bolt and spanner combination tool
A technology of combining tools and wrenches, applied in the field of combination tools of wrenches and universal bolts, can solve the problems of inconvenience, not easy to carry, large size, etc., to reduce wear and ensure the effect of fit
Pending Publication Date: 2020-02-11
SHANGHAI INST OF TECH
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Problems solved by technology
[0002] At present, the ordinary wrenches on the market are uneven and various, but they are inconvenient to use and inefficient
If you want to tighten different types of bolts, you must use multiple wrenches of different specifications, which is extremely inconvenient
For this reason, although some people have designed relevant universal wrench, as a kind of universal wrench of Chinese Patent No. CN208663618U authorized announcement, see Figure 10 , through the chain to achieve tightness, troublesome operation and easy loosening, but the scope of application is small, the volume is large, it is not easy to carry, and it is easy to damage the edges and corners of the bolts, which cannot fundamentally solve the problem
For example, a kind of concave deformed bolt and nut disclosed in the Chinese Patent No. CN 2903536Y authorization announcement only realizes the protection of the bolt edges and corners, and cannot realize the omnipotence between the wrench and the bolt.
Method used
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Embodiment 1
[0043]This embodiment provides a combination tool of a bolt and a wrench, including a bolt 20, the bolt 20 includes a truss-shaped bolt head 21 and a bolt body 23; a first wrench 10, used in combination with the bolt 20, includes a wrench Body 11, one end of the wrench body 11 is provided with a housing space 12 for housing the bolt head 21, the shape of the housing space 12 matches the shape of the truss of the bolt head 21; wherein, the housing space The size of the upper bottom surface 121 of the receiving space is not larger than the size of the upper bottom surface 211 of the bolt head, and the size of the lower bottom surface 122 of the receiving space is not smaller than the size of the upper bottom surface 211 of the bolt head. The accommodating space 12 of the first wrench can be used for tightening or loosening the bolt 20 when it is sleeved on the bolt head 21 .
[0044] "The prism is a kind of polyhedron studied in geometry. It refers to the geometric shape between...
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The invention discloses a bolt and spanner combination tool. The bolt and spanner combination tool comprises a bolt with a prism type bolt head, and a first spanner combined with the bolt for use; thefirst spanner is provided with accommodating space matched with the prism type bolt head; and the accommodating space of the first spanner sleeves the bolt head for installation and disassembly of the bolt. The connection with the first spanner is not influenced by the size of the bolt head, only the prism shape of the bolt head is matched with the prism shape of the accommodating space of the first spanner, the size of the upper bottom surface of the accommodating space is not larger than the size of the upper bottom surface of the bolt head, and the size of the lower bottom surface of the accommodating space is not smaller than the size of the upper bottom surface of the bolt head; the smaller bolt head is clamped in the bottom end of the spanner; the larger bolt head is clamped outsidethe bottom of the spanner; and only the size relationship is met, the first spanner can be guaranteed to match with bolt heads with any sizes to achieve universal effects of the spanner.
Description
technical field [0001] The invention belongs to the field of maintenance tools, and in particular relates to a combination tool of a universal bolt and a wrench. Background technique [0002] Common wrenches currently on the market are uneven and of a great variety, but they are inconvenient to use and inefficient. If you want to loosen and tighten bolts of different types, you must use a plurality of wrenches with different specifications, which is extremely inconvenient. For this reason, although some people have designed relevant universal wrench, as a kind of universal wrench of Chinese Patent No. CN208663618U authorized announcement, see Figure 10 , to realize the tightness through the chain, the operation is cumbersome and easy to loosen, but the scope of application is small, the volume is large, it is not easy to carry, and it is easy to damage the edges and corners of the bolts, which cannot fundamentally solve the problem. A kind of concave deformed bolt and nut ...
Claims
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IPC IPC(8): B25F1/00
CPCB25F1/003
Inventor顾鹏飞孙效杰
OwnerSHANGHAI INST OF TECH