CN201960514U

CN201960514U - Combined type protecting bush

Info

Publication number: CN201960514U
Application number: CN2011200555967U
Authority: CN
Inventors: 廖谢源
Original assignee: SHANGHAI PRO-HAND ELECTRIC SCREWDRIVERS CORP
Current assignee: SHANGHAI PRO-HAND ELECTRIC SCREWDRIVERS CORP
Priority date: 2011-03-04
Filing date: 2011-03-04
Publication date: 2011-09-07
Anticipated expiration: 2021-03-04

Abstract

The utility model discloses a combined type protecting bush comprising a fixing ring and a protecting bush, wherein one end of the protecting bush is connected with the fixing ring by threads, an inner ring gear is arranged at the other end of the protecting bush, and is matched with an outer gear of a torsion adjusting ring, and the protecting bush is sheathed on the outer part of the torsion adjusting ring by the inner ring gear and drives the torsion adjusting ring to rotate. The combined type protecting bush has scientific production line management, is attractive, reasonable, safe, reliable, and convenient for operation.

Description

The combined type sheath

Technical field

The utility model relates to a kind of combined type sheath, more particularly a kind ofly is used for sheath electronic, Pneumatic screw driver.

Background technology

Present electricity, Pneumatic screw driver sheath or retainer plate, effect only be fixed housing and or protection torsion cannot regulated at will, prevent that the pile line operation employee from arbitrarily or carelessly regulating torsion not according to matching requirements, influences assembly quality.Because torsion is regulated the setting of protection, certainly will constraint be arranged to length, the position of sheath or retainer plate, instrument is turned round at height and is carried out the torsion adjusting under the state; because torsion adjustment ring is in the inside of sheath or retainer plate; the position that rotates torsion adjustment ring by hand seldom, adjustment is unfavorable for operation with influenced.Adjust if be convenient to, must screw off sheath or retainer plate, because sheath or fixedly enclose the fixed housing effect, screw off in the process, regulate height and turn round and to make the bottle opener main body cause displacement, the stability and the quality of bottle opener hidden some dangers for, if cause assembling loosening or inner components and parts in movable position to come off, can cause very major injury to instrument, wherein there is voltage in electric tool inside, and coming off or wearing and tearing of connecting line also can cause potential safety hazard.

The utility model content

In order to solve the problem that above-mentioned prior art exists, the purpose of this utility model is to propose a kind of combined type sheath, and it can effectively solve the problems referred to above that prior art exists.

For achieving the above object, the utility model can be solved by the following technical programs:

A kind of combined type sheath, it is characterized in that: it comprises that a retainer plate and an end are by the connected sheath of thread, this sheath other end is provided with an inner circular tooth, the external tooth of this inner circular tooth and a torsion adjustment ring is complementary, be socketed in the outside of described torsion adjustment ring by the described sheath of this inner circular tooth, and drive described torsion adjustment ring rotation.

As further technical characterictic of the present utility model, the described retainer plate other end is connected on the tool outer casing by thread.

As further technical characterictic of the present utility model, described retainer plate is provided with a form that has a scale.

Because adopt above technical scheme, a kind of combined type sheath of the present utility model makes line management science and technology, attractive in appearance, reasonable, safe and reliable, handled easily.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation after the utility model is removed sheath;

Fig. 3 is the structural representation of sheath of the present utility model;

Fig. 4 is the cross-sectional structure schematic diagram of sheath of the present utility model;

Fig. 5 is the vertical section structure schematic diagram of sheath of the present utility model;

Among the figure: 1, sheath; 2, torsion adjustment ring; 3, retainer plate; 4, tool outer casing; 5, external tooth; 6, inner circular tooth; 7, form.

The specific embodiment

Below in conjunction with the drawings and the specific embodiments, further set forth the utility model:

Extremely shown in Figure 5 as Fig. 1, a kind of combined type sheath, it comprises a retainer plate 3 and a sheath 1, retainer plate 3 one ends are connected and fixed by thread and sheath 1, the other end is fixed on the tool outer casing 4, and sheath 1 does not have an end of thread to be provided with an inner circular tooth 6, and the external tooth 5 that this inner circular tooth 6 and a torsion adjustment encircle 2 outsides is complementary, be socketed in the outside of torsion adjustment ring 2 by these inner circular tooth 6 sheaths 1, and drive 2 rotations of torsion adjustment ring.

During use when needs are adjusted torsion, the sheath 1 of jacket assembly is screwed off, turn torsion adjustment ring 2 is adjusted torsion, also sheath 1 can be enclosed within the torsion adjustment and encircle 2 outsides, by turn sheath 1, drive torsion adjustment ring 2 thereby the internal gear of sheath 6 drives the external tooth of torsion adjustment rings 2, and retainer plate 3 is provided with a form 7 that has a scale, conveniently read the reference value size of torsion by this form 7 users, so that regulate torsion as required.Do not need in the whole adjustment process to pull down retainer plate 3, can protect the torsion can regulated at will during assembling, direct adapted retainer plate 3 when pulling down have any impact to the normal use of instrument, guarantees tool stability.

But the above-mentioned specific embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.

Claims

1. combined type sheath, it is characterized in that: it comprises that a retainer plate and an end are by the connected sheath of thread, this sheath other end is provided with an inner circular tooth, the external tooth of this inner circular tooth and a torsion adjustment ring is complementary, be socketed in the outside of described torsion adjustment ring by the described sheath of this inner circular tooth, and drive described torsion adjustment ring rotation.

2. combined type sheath according to claim 1 is characterized in that: the described retainer plate other end is connected on the tool outer casing by thread.

3. combined type sheath according to claim 2 is characterized in that: described retainer plate is provided with a form that has a scale.