CN208601413U - A kind of self-locking spanner suitable for narrow space - Google Patents

A kind of self-locking spanner suitable for narrow space Download PDF

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Publication number
CN208601413U
CN208601413U CN201821323831.2U CN201821323831U CN208601413U CN 208601413 U CN208601413 U CN 208601413U CN 201821323831 U CN201821323831 U CN 201821323831U CN 208601413 U CN208601413 U CN 208601413U
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China
Prior art keywords
worm shaft
worm
shell
self
narrow space
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Application number
CN201821323831.2U
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Chinese (zh)
Inventor
王小刚
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Yangzhou Polytechnic Institute
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Yangzhou Polytechnic Institute
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Priority to CN201821323831.2U priority Critical patent/CN208601413U/en
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Abstract

The utility model relates to a kind of self-locking spanners suitable for narrow space, including worm shaft, worm gear sleeve and shell, the worm shaft peripheral surface is provided with screw thread, the side of worm shaft is arranged in the worm gear sleeve and worm gear sleeve is circumferentially provided with the groove being used in combination with the screw thread, the worm gear sleeve is rotatably provided in the shell, the worm shaft is arranged through shell, and one end of worm shaft is provided with die nut, and the other end of worm shaft is provided with handle.The self-locking spanner suitable for narrow space provided in above-mentioned technical proposal, structure is simple, easy to use, and can effectively solve bottom of box installation inconvenience and installation existing in the prior art, smoothly caused connection does not loosen untight problem.

Description

A kind of self-locking spanner suitable for narrow space
Technical field
The utility model relates to hardware tool technical fields, and in particular to a kind of self-locking suitable for narrow space is pulled Hand.
Background technique
Spanner be it is a kind of it is common be installed on extracting tool, twist bolt, screw, nut and other spiral shells using lever principle Line tightly holds the opening of bolt or nut or the hand tools of trepanning firmware.Spanner is usually formed with clamp holder in the one or both ends of shank Portion applies external force, and threadingly direction of rotation in shank applies external force when use, can twist bolt or nut.But when needs exist When the bottom of box is installed, general common wrench and ordinary cartridge spanner are not all available, and not only bring fiber crops to installment work It is tired, and just connection can not caused to loosen due to the point of application, in conjunction with untight problem.Therefore, it needs to design a kind of new Technical solution solves problems of the prior art with comprehensive.
Summary of the invention
The purpose of the utility model is to provide a kind of self-locking spanners suitable for narrow space, and structure is simple, use Convenient, can effectively solve bottom of box installation inconvenience and installation existing in the prior art, smoothly caused connection does not loosen not Close problem.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of self-locking spanner suitable for narrow space, including worm shaft, worm gear sleeve and shell, the worm shaft week Surface is provided with screw thread, the side of worm shaft is arranged in the worm gear sleeve and worm gear sleeve is circumferentially provided with and the spiral shell The groove that line is used in combination, the worm gear sleeve are rotatably provided in the shell, and the worm shaft is arranged through shell, and One end of worm shaft is provided with die nut, and the other end of worm shaft is provided with handle.
Further scheme is that the through-hole passed through for worm shaft is provided on the shell, and the worm shaft is rotatable to be set It sets in the shell.
Further scheme is that one end that the handle connects with worm shaft is allen wrench, worm shaft and handle phase The one end connect is provided with to hole is determined, and the handle connects by allen wrench and to hole is determined with the worm shaft.
Further scheme is that the handle is in Z-shaped.
The self-locking spanner suitable for narrow space provided in above-mentioned technical proposal, structure is simple, easy to use, by snail Bar axis and worm gear sleeve are combined together, and realize screwing and unscrewing to nut or bolt portion using the rotation of worm shaft, And handle is set (by allen wrench and to the six side's connection types for determining hole formation, convenient for quick in one end of worm shaft Dismounting and carrying), by the rotation to handle, to change force direction and force method.It is described in the utility model to be suitable for The self-locking spanner of narrow space, with Worm Wheel System, the performance with unidirectional delivery can play self-locking effect, and And during driving can also being prevented, loads the sudden turn of events and loosen.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the self-locking spanner described in the utility model suitable for narrow space.
In figure: 1, shell;2, handle;3, worm shaft;31, screw thread;32, to determining hole;33, die nut;4, worm gear sleeve.
Specific embodiment
In order to which the purpose of this utility model and advantage is more clearly understood, with reference to embodiments to the utility model into Row illustrates.It should be appreciated that following text is only used to one or more of specific embodiments of description the utility model, Considered critical is not carried out to the protection scope that the utility model is specifically requested.
Technical solution that the utility model is taken as shown in Figure 1, a kind of self-locking spanner suitable for narrow space, including Worm shaft 3, worm gear sleeve 4 and shell 1,3 peripheral surface of worm shaft are provided with screw thread 31, and the setting of worm gear sleeve 4 exists The side and worm gear sleeve 4 of worm shaft 3 are circumferential to be provided with the groove 41 being used in combination with the screw thread 31, the worm gear set Cylinder 4 is rotatably provided in the shell 1, and the worm shaft 3 is arranged through shell 1, and one end of worm shaft 3 is provided with hexagonal and pulls Hand 33, the other end of worm shaft 3 are provided with handle 2;The utility model has the principle of unidirectional delivery with worm and gear, rises and reaches To self-locking purpose, during driving can be effectively prevented, the phenomenon that loosening due to the load sudden turn of events.
The through-hole passed through for worm shaft 3 is provided on the shell 1, the worm shaft 3 is rotatably disposed in the shell 1 Interior, on the one hand it is the shape for being applicable in worm shaft and worm gear sleeve that shell, which is cuboid, in the present embodiment, on the other hand, due to Most cabinets are all square, therefore the shell of cuboid avoids nut or bolt convenient for judging whether active position is vertical Inconsistent phenomenon occurs.
One end that the handle 2 connects with worm shaft 3 is allen wrench, one end setting that worm shaft 3 connects with handle Have to hole 32 is determined, the handle 2 with the worm shaft 3 connects by allen wrench and to hole 32 is determined, and uses six sides here The mode of connection, easy to disassemble and carrying, and can guarantee the stability combined, guarantee that stable operation carries out.
More specifically scheme is that the handle 2 is in Z-shaped, and force direction can be changed in Z-shaped handle, and combines Fig. 1 The end of holding of handle is crank, and the power that should be acted in cabinet is moved on on the outside of cabinet, guarantees operating space, improves operation effect Rate.
In short, the self-locking spanner provided by the utility model suitable for narrow space, especially suitable for needing in cabinet Bottom carries out the case where installation nut or bolt, when specifically used, the utility model is inserted into cabinet, by worm shaft one end Die nut is directed at the nut or bolt to be acted on, then by rotating handles, to realize to bottom of box nut or bolt Screw and unscrew;In addition, force direction can be changed in the setting of handle since rotating handles are integrally perpendicular to worm shaft arrangement And force mechanism, to guarantee that it is more laborsaving and smoothly that the utility model product uses.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to Above embodiment, for those skilled in the art, in knowing the utility model after contents, Under the premise of not departing from the utility model principle, several same transformation and substitution can also be made to it, these same transformation and Substitution also should be regarded as belonging to the protection scope of the utility model.

Claims (4)

1. a kind of self-locking spanner suitable for narrow space, it is characterised in that: including worm shaft (3), worm gear sleeve (4) and shell Body (1), worm shaft (3) peripheral surface are provided with screw thread (31), side of worm gear sleeve (4) setting in worm shaft (3) Side and worm gear sleeve (4) are circumferentially provided with the groove (41) being used in combination with the screw thread (31), the worm gear sleeve (4) It is rotatably provided in the shell (1), the worm shaft (3) is arranged through shell (1), and one end of worm shaft (3) is provided with Die nut (33), the other end of worm shaft (3) are provided with handle (2).
2. the self-locking spanner according to claim 1 suitable for narrow space, it is characterised in that: on the shell (1) It is provided with the through-hole passed through for worm shaft (3), the worm shaft (3) is rotatably disposed in the shell (1).
3. the self-locking spanner according to claim 2 suitable for narrow space, it is characterised in that: the handle (2) with One end that worm shaft (3) connects is allen wrench, and one end that worm shaft (3) connects with handle is provided with to determining hole (32), institute Handle (2) are stated by allen wrench and are connected to hole (32) is determined with the worm shaft (3).
4. the self-locking spanner according to claim 1 or 3 suitable for narrow space, it is characterised in that: the handle (2) In Z-shaped.
CN201821323831.2U 2018-08-16 2018-08-16 A kind of self-locking spanner suitable for narrow space Active CN208601413U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821323831.2U CN208601413U (en) 2018-08-16 2018-08-16 A kind of self-locking spanner suitable for narrow space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821323831.2U CN208601413U (en) 2018-08-16 2018-08-16 A kind of self-locking spanner suitable for narrow space

Publications (1)

Publication Number Publication Date
CN208601413U true CN208601413U (en) 2019-03-15

Family

ID=65679729

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821323831.2U Active CN208601413U (en) 2018-08-16 2018-08-16 A kind of self-locking spanner suitable for narrow space

Country Status (1)

Country Link
CN (1) CN208601413U (en)

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