CN203019273U

CN203019273U - Ratchet wrench

Info

Publication number: CN203019273U
Application number: CN 201320062335
Authority: CN
Inventors: 忻明良
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2013-06-26
Anticipated expiration: 2023-01-31

Abstract

The utility model discloses a ratchet wrench. The ratchet wrench comprises a handle (1) and a ratchet mechanism, wherein the ratchet mechanism comprises a ratchet (5); a mounting hole (6) for assembling a cutter bar is formed in an assembling part (5.1) at the front end of the ratchet (5); magnetic steel (7) is arranged at the bottom part inside the mounting hole (6); an assembling piece (8) is movably sleeved in the assembling part (5.1) and connected with the magnetic steel (7) by virtue of a plug pin (9); two long holes (5.1.1) for enabling the plug pin (9) to move along the axial direction of the ratchet (5) are symmetrically formed in the circumferential wall of the mounting hole (6); and the ratchet wrench also comprises an assembly which is used for positioning the assembling piece (8) or driving the assembling piece (8) to move along the axial direction. The ratchet wrench has the advantages that the assembly is pushed to drive the assembling piece to move along the axial direction to ensure that the plug pin and the magnetic steel synchronously move; when the assembling piece and the magnetic steel move to a limiting position, a groove bigger than the mounting hole is formed in the front end surfaces of the assembling piece and the magnetic steel; and a cutter handle and the cutter bar matched with the groove can be arranged, so that the cutter bar still has adsorption capacity.

Description

Ratchet spanner

Technical field

The utility model relates to a kind of for instrument fastening or dismounting, relates in particular to a kind of ratchet spanner.

Background technology

Existing ratchet spanner comprises handle and ratchet mechanism, ratchet mechanism comprises that handle post, limit are to tooth, reversing piece and tooth papillae, limit is installed on the handle post to tooth elasticity, reversing piece is linked on the handle post, tooth papillae is connected with the relatively turnable fit of handle post, and reversing piece is provided with the jacking block of being combined with tooth papillae to tooth for controlling limit; Offer the installing hole for the assembling knife bar in the equipped section of tooth papillae, installing hole bottom is fixedly installed magnet steel.This ratchet spanner makes knife bar also have magnetic attraction and can adsorb screw because the handle of a knife of magnet steel and knife bar directly contacts, and screw is difficult for breaking away from use, operates more convenient.But this ratchet spanner when the big or small knife bar different from installing hole of assembling handle of a knife, need to arrange bridgeware because the size of installing hole is fixed, make magnet steel break away from knife bar and directly not contact, cause that the suction of knife bar is smaller does not even have suction, screw easily breaks away from, inconvenient operation.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of ratchet spanner, can assemble the knife bar that handle of a knife varies in size, and keeps simultaneously knife bar to have absorption affinity.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of ratchet spanner, it comprises handle and ratchet mechanism, described ratchet mechanism comprises tooth papillae, offer the installing hole for the assembling knife bar in the equipped section of described tooth papillae front end, described installing hole inner bottom part is provided with magnet steel, described equipped section movable sleeve is provided with fitting, described fitting is connected by latch with magnet steel, is symmetrically arranged with two on the perisporium of described installing hole for the slotted hole that moves along the tooth papillae axis direction for latch; It also comprises for positioning assembling spare or drives the axially movable assembly of fitting.

After adopting said structure, the utility model advantage compared to existing technology is: be used for positioning assembling spare or drive the axially movable assembly of fitting driving fitting and moving axially by promotion, make latch and magnet steel synchronizing moving, when fitting and magnet steel move to when limiting the position, fitting and magnet steel front end face form the groove that is equipped with the installing hole of section greater than the tooth papillae front end, the knife bar that handle of a knife and this groove match can be installed this moment, and make this knife bar have absorption affinity.

As preferably, the central shaft of described latch and the intersect vertical axis of tooth papillae.When mobile, can reduce the probability of wall friction in the equipped section's friction of fitting and tooth papillae and magnet steel and installing hole, operate more laborsaving.

As preferably, described for positioning assembling spare or drive the axially movable assembly of fitting and comprise sleeve, steel ball and spring; Be provided with through hole on described fitting, described steel ball is arranged in through hole, is provided with in described equipped section for matching with steel ball the first circular groove and second circular groove of fitting location; Described sleeve is movably set in outside fitting, and described sleeve inboard is provided with the first bulge loop and the second bulge loop, is formed for the annular groove of settling when fitting moves for steel ball between described the first bulge loop and the second bulge loop; The cavity of the stairstepping outside formation putting spring of the leading section of described sleeve and the first bulge loop and described equipped section, an end of described spring is against on the step surface in the fitting outside, and the other end of described spring is against the end face of the first bulge loop; Described fitting tail end arranged outside has iron hoop, and the maximum outside diameter of described iron hoop is greater than the internal diameter of the second bulge loop.Only need to move up and down by promoting sleeve, just can adjust, operate easier.

As preferably, be nested with friction member on described sleeve outer wall.Hand is larger by being pressed on friction member frictional force, and is more laborsaving when promoting sleeve.

Description of drawings

Fig. 1 is side view of the present utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is explosive view of the present utility model.

As shown in the figure: 1, handle, 2, the handle post, 3, limit is to tooth, 4, reversing piece, 5, tooth papillae, 5.1, equipped section, 5.1.1, slotted hole, 5.1.2, the first circular groove, 5.1.3, the second circular groove, 6, installing hole, 7, magnet steel, 7.1, jack, 8, fitting, 8.1, pin hole, 8.2, through hole, 9, latch, 10, sleeve, the 10.1, first bulge loop, the 10.2, second bulge loop, 10.3, annular groove, 11, steel ball, 12, spring, 13, iron hoop, 14, friction member.

The specific embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 to 3, a kind of ratchet spanner, it comprises handle 1 and ratchet mechanism, ratchet mechanism comprises that handle post 2, limit are to tooth 3, reversing piece 4 and tooth papillae 5, handle post 2 is fixedly mounted on handle 1, limit is installed on handle post 2 to tooth 3 elasticity, reversing piece 4 is linked on handle post 2, tooth papillae 5 is connected with the relatively turnable fit of handle post 2, reversing piece 4 is provided with for controlling limit to the jacking block of tooth 3 with tooth papillae 5 clutches, offer the installing hole 6 for the assembling knife bar in the equipped section 5.1 of tooth papillae 5, installing hole 6 inner bottom parts are provided with magnet steel 7.Above-mentioned assembling parts structure all adopts prior art.

it also comprises latch 9, being movably set in tooth papillae 5 is equipped with the outer fitting 8 of section 5.1 and is used for positioning assembling spare 8 or drives the axially movable assembly of fitting 8, be provided with two pin holes 8.1 on same straight line on fitting 8, be provided with vertically two on the perisporium of installing hole 6 for the slotted hole 5.1.1 that moves for latch 9, be provided with jack 7.1 on magnet steel 7, one end of latch 9 and one of them pin hole 8.1 interference fit, the other end of latch 9 passes one of them slotted hole 5.1.1 successively, after jack 7.1 and another slotted hole 5.1.1 with another pin hole 8.1 interference fit.

As preferably, the intersect vertical axis of the axis of latch 9 and tooth papillae 5.

In the present embodiment, comprise sleeve 10, steel ball 11 and spring 12 for positioning assembling spare 8 or the axially movable assembly of drive fitting 8; Be provided with through hole 8.2 on fitting 8, steel ball 11 is arranged in through hole 8.2, is provided with for matching with steel ball 11 the first circular groove 5.1.2 and the second circular groove 5.1.3 of fitting 8 location in equipped section 5.1; Sleeve 10 is movably set in outside fitting 8, and sleeve 10 inboards are provided with and are formed for the annular groove 10.3 settled for steel ball 11 between the first bulge loop 10.1 and the second bulge loop 10.2, the first bulge loops 10.1 and the second bulge loop 10.2 when fitting 8 moves; The cavity of the stairstepping outside formation putting spring 12 of the leading section of sleeve 10 and the first bulge loop 10.1 and equipped section 5.1, an end of spring 12 is against on the step surface in fitting 8 outsides, and the other end of spring 12 is against the end face of the first bulge loop 10.1; Fitting 8 tail end arranged outside have iron hoop 13, and the maximum outside diameter of iron hoop 13 is greater than the internal diameter of the second bulge loop 10.2.Wherein, the diameter of steel ball 11 equals the length of through hole 8.2 and the degree of depth sum of circular groove (5.1.2,5.1.3); The radius of steel ball 11 is greater than the degree of depth of annular groove 10.3.When initial, steel ball 11 is limited in the through hole 8.2 and the first circular groove 5.1.2 of fitting 8, can assemble the knife bar that handle of a knife and installing hole 7 are complementary this moment.promote sleeve 10, when annular groove 10.3 is moved to the position parallel with the first circular groove 5.1.2, affected by spring 12 elastic force, fitting 8 drives latch 9 and magnet steel 7 moves together, make steel ball 11 be squeezed and slide into from the first circular groove 5.1.2 in the through hole 8.2 and annular groove 10.3 of fitting 8, when latch 9 with after slotted hole 5.1.1 top contacts, cancel the thrust that sleeve 10 is applied, restoring force due to spring 12, sleeve 10 rollbacks, steel ball 11 is squeezed, when steel ball 11 retreats to the second circular groove 5.1.3 place, steel ball 11 is positioned in the through hole 8.2 of the second circular groove 5.1.3 and fitting 8, can assemble the knife bar that handle of a knife and fitting 8 inner rings are complementary this moment, promote sleeve 10, when annular groove 10.3 is moved to the position parallel with the second circular groove 5.1.3, steel ball 11 is squeezed in the through hole 8.2 and annular groove 10.3 that returns to fitting 8, presses fitting 8 and gets back to the initial place together with sleeve 10, latch 9 and magnet steel 7.In the present embodiment, through hole 8.2, steel ball 11, the first circular groove 5.1.2 and the second circular groove 5.1.3 are provided with 3 groups, and the line even circumferential distributes centered by the axis of tooth papillae 5.

As preferably, nested friction member 14 on sleeve 10 outer walls.Frictional force between hand and friction member 14 is larger, promotes sleeve easier.

In addition, also can adopt other the assembly that is used for controlling assembly parts 8, for example in department of assembly 5.1, spring latch lock is set, two locating holes are set on assembly parts 8, and the button that is used for pressing spring latch lock is set outside locating hole, can come by pressing, promote button the position of adjustment assembly spare 8.

Claims

1. ratchet spanner, it comprises handle (1) and ratchet mechanism, described ratchet mechanism comprises tooth papillae (5), offer the installing hole (6) for the assembling knife bar in the equipped section (5.1) of described tooth papillae (5) front end, described installing hole (6) inner bottom part is provided with magnet steel (7), it is characterized in that: described equipped section (5.1) movable sleeve is provided with fitting (8), described fitting (8) is connected by latch (9) with magnet steel (7), be symmetrically arranged with two on the perisporium of described installing hole (6) for the slotted hole (5.1.1) that moves along tooth papillae (5) axis direction for latch (9), it also comprises for positioning assembling spare (8) or drives the axially movable assembly of fitting (8).

2. ratchet spanner according to claim 1 is characterized in that: described for positioning assembling spare (8) or drive the axially movable assembly of fitting (8) and comprise sleeve (10), steel ball (11) and spring (12); Be provided with through hole (8.2) on described fitting (8), described steel ball (11) is arranged in through hole (8.2), is provided with in described equipped section (5.1) for matching with steel ball (11) the first circular groove (5.1.2) and second circular groove (5.1.3) of fitting (8) location; Described sleeve (10) is movably set in outside fitting (8), described sleeve (10) inboard is provided with the first bulge loop (10.1) and the second bulge loop (10.2), is formed for the annular groove (10.3) of settling when fitting (8) is mobile for steel ball (11) between described the first bulge loop (10.1) and the second bulge loop (10.2); The cavity of the stairstepping outside formation putting spring (12) of the leading section of described sleeve (10) and the first bulge loop (10.1) and described equipped section (5.1), one end of described spring (12) is against on the step surface in fitting (8) outside, and the other end of described spring (12) is against the end face of the first bulge loop (10.1); Described fitting (8) tail end arranged outside has iron hoop (13), and the maximum outside diameter of described iron hoop (13) is greater than the internal diameter of the second bulge loop (10.2).

3. ratchet spanner according to claim 2, is characterized in that: be nested with friction member (14) on the outer wall of described sleeve (10).

4. ratchet spanner according to claim 1, is characterized in that: the intersect vertical axis of the axis of described latch (9) and tooth papillae (5).