CN201009194Y

CN201009194Y - Ratchet socket spanner

Info

Publication number: CN201009194Y
Application number: CNU2007201069989U
Authority: CN
Inventors: 孙月军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-08
Filing date: 2007-03-08
Publication date: 2008-01-23
Anticipated expiration: 2017-03-08

Abstract

The utility model discloses a ratchet box wrench, which comprises a handle and a head part arranged on one end of the handle, wherein the inside of the head part is provided with a sleeve, the outside surface of the sleeve is provided with a ratchet made of complex straight gear, the inside surface of the sleeve is provided with a polygon combined with the operated female screw, the inside of the head part is also provided with a check pawl, the inner surface of the check pawl is provided with complex straight gears which are engaged with the ratchet gear, the outer surface of the check pawl is pasted on the inner wall of the head part, the check pawl is also provided with a handle, the handle is connected with one end of a compression spring, the other end of the compression is connected with one end of a blocking plate, the other end of the blocking plate is blocked in groove where the space of the head part is combined with the handle. The utility model has the advantages of convenient operation, large torsional moment, and simple manufacture craft.

Description

Box socket set

Technical field

The utility model relates to the spanner in the hand-operated tools, specifically a kind of box socket set.

Background technology

Nut can be tightened or unclamp to combination wrench, open-end wrench or box spanner.The common drawback of these spanners is, after rotating an angle, spanner must be taken off from nut, and then be enclosed within and rotate another angle on the nut, and it is very inconvenient to use, particularly in the operating space than hour all the more so.Overcome above-mentioned shortcoming for knowing clearly, developed the reversing sleeve spanner, this class spanner comprises the ratchet and a ratchet and the spring that are installed in Wrench head, and ratchet can throw off with ratchet or combine, thereby necessary operations is provided.But because general ratchet just combines with a tooth of ratchet, the moment of torsion that is reached is less, and ratchet damages easily.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of moment of torsion easy to operate, that transmit big, the simple relatively box socket set of manufacturing process.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of box socket set, comprise handle and be arranged on the head of handle one end, one sleeve is arranged in the space of described head, the outer peripheral face of sleeve has the ratchet that is made of a plurality of straight-tooth, the inner peripheral surface of sleeve has the polygonal that combines with the nut that will operate, one check pawl also has been installed in the space of described head, be shaped on the inner face of check pawl in order to a plurality of straight-tooth of hook tooth engagement, the recline space inwall of head of the outside of check pawl, also has a handle on the check pawl, an end that connects the compression spring on the handle, the other end of compression spring connects an end of catch, and the other end of catch is stuck in the head space in the groove with the handle junction.

The further technical scheme of the utility model also comprises:

Described sleeve is shaped on interior cannelure near being shaped on outer annular groove on the outer peripheral face of an one end face in the space of described head, sleeve is stuck in by one that snap ring is connected with head in outer annular groove and the interior cannelure.

The addendum angle of the straight-tooth on the described check pawl is 73.35 °, and groove angle is 68.35 °.

The other end connection one of described handle is spanner fixedly.

The utility model is owing to adopted above-mentioned technical measures, and making it to contrast prior art has following advantage:

1, easy to operate: the user promotes head with handle, make nut rotate the operating sleeve spanner along a direction, if head turns over certain angle, when needs return box spanner on its initial position, need not upwards to raise box spanner and make it to throw off, as long as directly make box spanner turn to initial position in opposite direction with nut.

2, ratchet intensity height, the moment of torsion of transmission is big: because check pawl has a plurality of teeth, the moment of torsion of its intensity and transmission is much higher than the monodentate ratchet.

3, manufacturing process is simple: the tooth of ratchet and ratchet adopts the straight-tooth design, and manufacturing process is simple relatively, and manufacturing cost reduces.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the A-A cross-sectional view of Fig. 1;

Fig. 3 is the structure for amplifying schematic diagram of the utility model embodiment check pawl;

Fig. 4 is the structure for amplifying schematic diagram of the utility model embodiment sleeve;

Fig. 5 is the structure for amplifying schematic diagram of the utility model embodiment head.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

With reference to accompanying drawing, the utility model comprises handle 2 and is arranged on the head 15 of handle 2 one ends.One sleeve 7 is arranged in the space 6 of described head 15, and the outer peripheral face of sleeve 7 has the ratchet 12 that is made of a plurality of straight-tooth, and the inner peripheral surface of sleeve 7 has the polygonal 8 that combines with the nut that will operate.One arc check pawl 9 also has been installed in the space 6 of head 15, be shaped on the inner face of check pawl 9 in order to a plurality of straight-tooth 13 of the straight-tooth engagement of ratchet 12, the addendum angle b of straight-tooth 13 is 73.35 °, groove angle a is 68.35 °.Recline space 6 inwalls of head 15 of the outside of check pawl 9.Also have a handle 14 on the check pawl 9, connect an end of compression spring 5 on the handle 14, the other end of compression spring 5 connects an end of catch 4, and the other end of catch 4 is stuck in the head space 6 in the groove 3 with handle 2 junctions.Sleeve 7 is shaped on interior cannelure 16 near being shaped on outer annular groove 11 on the outer peripheral face of an one end face in the space 6 of head 15, sleeve 7 is stuck in by one that snap ring 10 is connected with head 15 in outer annular groove 11 and the interior cannelure 16.The other end connection one of handle 2 is spanner 1 fixedly, makes it to have more function.

During operation, the polygonal 8 of sleeve 7 inner peripheral surfaces of box spanner is enclosed within on the nut of waiting to tighten or unclamping, promote head 15 with handle 2, space 6 inwalls of head 15 act on the outside of check pawl 9, and the engagement of the straight-tooth by check pawl 9 and the straight-tooth of sleeve 7 outer peripheral face ratchets 12 drives sleeve 7 makes nut rotate along a direction.Head 15 turns over certain angle, when needs return box spanner on its initial position, need not upwards to raise box spanner and makes it to throw off with nut, as long as directly make box spanner turn to initial position in opposite direction.At this moment, compression spring 5 is compressed, and the outside of check pawl 9 breaks away from the inwall in the space 6 of head 15, and head 15 can be done motion in the other direction with respect to sleeve 7.The elastic force that compression spring 5 is provided can back into initial position with check pawl 9.

Claims

1. box socket set, comprise handle (2) and be arranged on the head (15) of handle (2) one ends, in the space (6) of described head (15) sleeve (7) is arranged, the outer peripheral face of sleeve (7) has the ratchet (12) that is made of a plurality of straight-tooth, the inner peripheral surface of sleeve (7) has the polygonal (8) that combines with the nut that will operate, in the space (6) of described head (15), a check pawl (9) has been installed also, be shaped on the inner face of check pawl (9) in order to a plurality of straight-tooth (13) of ratchet (12) straight-tooth engagement, recline space (6) inwall of head (15) of the outside of check pawl (9), check pawl (9) is gone up also has a handle (14), handle (14) is gone up an end that connects compression spring (5), the other end of compression spring (5) connects an end of catch (4), and the other end of catch (4) is stuck in the head space (6) in the groove (3) with handle (2) junction.

2. box socket set according to claim 1, it is characterized in that: described sleeve (7) is being shaped on outer annular groove (11) near on the outer peripheral face of an one end face, be shaped on interior cannelure (16) in the space (6) of described head (15), sleeve (7) is stuck in outer annular groove (11) by one and is connected with head (15) with the middle snap ring (10) of interior cannelure (16).

3. box socket set according to claim 1 is characterized in that: the addendum angle (b) of the straight-tooth (13) on the described check pawl (9) is 73.35 °, and groove angle (a) is 68.35 °.

4. box socket set according to claim 1 is characterized in that: the other end connection one of described handle (2) is spanner (1) fixedly.