CN2778480Y

CN2778480Y - Ratchet with direction control structure

Info

Publication number: CN2778480Y
Application number: CN 200520002127
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-07
Filing date: 2005-02-07
Publication date: 2006-05-10
Anticipated expiration: 2015-02-07

Abstract

The utility model provides a ratchet wheel with a direction controlling structure. The utility model mainly uses a containing hole on a direction controlling block to contain an elastic butting device, a positioning slot is formed near the containing hole, and a control sheet can be inserted fixedly in the positioning slot. A cutting slot is arranged on a brake block and can hole one end of the control sheet, one end of the control sheet is inserted fixedly in the positioning slot of the direction controlling block, and the other end of the control sheet is held in the cutting slot of the brake block. As a result, the control sheet not only has the function of preventing the elastic butting device from springing away, but also can drive the brake block to slip when the position of the direction controlling block is switched to avoid that the brake block is driven by an elastic piece of the elastic butting device directly, so that the transverse stress of the elastic piece is decreased to extend the service life. The control sheet has simple design structure but multiple effects.

Description

Ratchet with direction control structure

One, technical field

The utility model relates to ratchet, relate in particular to a kind of make spanner ratchet direction control structure when switching more firm really, and the ratchet with direction control structure of minimizing fault generation probability.

Two, background technology

The current common people take action on one's own to arrange and contain the DIY general mood day in the family, it is quite mature and stable to add domestic hand-held tool development, wherein, no matter be product category or architecture quality, win domestic and international consistent affirming especially, hand tools production industry over the years, in order to make general consumption masses more convenient in use, so the hand-held tool of various easy operating or subsidiary hommization function is also asked the city successively; General ratchet tool has been the generally use of popular now institute, and it is quite convenient in the use, and its function also can both reach the desired level of industry use along with the progress in epoch.Yet now along with the change of consumer's use habit, a lot of things even instrument all are required to have more designs easily, and same, the direction control structure of ratchet tool also is constantly to change and to develop the requirement that just can meet modern consumer.

Consult United States Patent (USP) No. 6609444, it mainly comprises a wrench body, ratchet-gear wheel, brake block and a direction control structure, wherein, one head of this wrench body is provided with an accommodation chamber, and the accommodation chamber side forms a brake groove, in addition, also be provided with a control to groove, and between groove and brake groove, form a connected state in control, in accommodation chamber and brake groove can be respectively be placed in for ratchet-gear wheel and brake block, and make it be engagement; This direction control structure comprises a control to piece and the elastic top device of pulling, and control can be ccontaining for the elastic top device of pulling to piece, and is fixed with a T shape catch in control on piece, by this catch make elastic top pull device switch brake block replace the position time can not come off and skid off.Yet this existing ratchet direction control structure is to replace direction and position with what elastic top pulled that device changes brake block, and this elastic top device of pulling mainly is made of a spring; Therefore, device is subjected to controlling the spacing of on piece T shape catch and can avoids outwards deviating from though elastic top is pulled, but still might utilize control to piece switch brake block fasten direction the time, make the pull spring of device of elastic top be subjected to too much lateral stress and cause distortion, because, this spring comparatively can't be absorbed in laterally and the stress that comes, therefore in use for some time, very likely cause the deformed damaged of spring, thereby this ratchet direction control structure is broken down, and this T shape catch only fastens in control on piece with an end, this T shape catch itself just has the problem that comes off, and can not prevent that more the elastic top device of pulling from coming off, therefore with regard to overall structure, its practical poor-performing has really and carries out improved necessity.

Three, utility model content

Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of ratchet with direction control structure, it is that in control containing hole to be set on piece ccontaining for the elastic top device of pulling, contiguous containing hole part is formed with locating slot, locating slot is inserted solid for control strip, and brake block is provided with profile groove, profile groove is ccontaining for control strip one end, make control strip not only have the elastic top of preventing effect that the device escape ejects of pulling, more can be when controlling to the piece switching position, drive the brake block slippage, avoid directly driving brake block, reduce the suffered lateral stress of elastic component, increase the service life by the pull elastic component of device of elastic top, effectively overcome the existing ratchet direction control structure elastic top easy bullet of device of pulling and take off ejection, or the lateral stress when switching causes shortcomings such as elastic component elastic fatigue easily.

The purpose of this utility model is realized by following technical scheme.

The utlity model has the ratchet of direction control structure, comprise a wrench body, ratchet-gear wheel, brake block and a direction control structure; It is characterized in that: described wrench body head is provided with an accommodation chamber, the accommodation chamber side is formed with a brake groove, be provided with a control in addition to groove, control forms a connected state between groove and brake groove, accommodation chamber and brake groove are respectively equipped with ratchet-gear wheel and brake block, and making it be the engagement shape, a direction control structure is located at control to groove; This brake block bottom is provided with a containing hole, and contiguous containing hole one side is provided with profile groove; This direction control structure comprises that a control is to piece and be arranged on the elastic top of control on piece pull a device and a control strip, this elastic top pulls that device one end is contained in the containing hole of brake block and the ejection brake block, make the engagement of brake block and ratchet-gear wheel, this control strip one end is placed on the profile groove of brake block; Device comes off and auxiliary control drives brake block to piece to prevent elastic top to pull by control strip.

Aforesaid ratchet with direction control structure is wherein controlled to the bottom land end and is provided with the left and right top hole slot of pulling; The described elastic top device of pulling is made up of a steel ball and an elastic component, and this steel ball is absorbed in left and right top and pulls in the hole slot.

The beneficial effects of the utility model are, can improve the existing ratchet direction control structure elastic top easy bullet of device of pulling and take off ejection, or the lateral stress when switching causes shortcomings such as elastic component elastic fatigue easily.It is that in control one containing hole to be set on piece ccontaining for the elastic top device of pulling, and be formed with a locating slot in contiguous containing hole part, this locating slot can be inserted solid for control strip, and this brake block is provided with a profile groove, this profile groove system can be ccontaining for control strip one end, so, one of this control strip end is solidly plugged in control in the locating slot of piece, the other end then is placed in the profile groove of brake block, so control strip not only has the elastic top of preventing effect that the device escape ejects of pulling, and more can be during to the piece switching position in control, drive the brake block slippage, avoid directly driving brake block,, can increase the service life to reduce the suffered lateral stress of elastic component by the pull elastic component of device of elastic top, the project organization of the utility model control strip is simple, but can bring into play multi-efficiency, have practicality and creativeness really, be worthy of popularization.

Four, description of drawings

Fig. 1 is the ratchet stereochemical structure decomposing schematic representation that the utlity model has direction control structure.

Fig. 2 is the local schematic perspective view that amplifies of ratchet that the utlity model has direction control structure.

Fig. 3 is the ratchet combining structure schematic appearance that the utlity model has direction control structure.

Fig. 4 is the ratchet sectional view that the utlity model has direction control structure.

Fig. 5 is the ratchet operating state cutaway view that the utlity model has direction control structure.

Fig. 6 is another operating state cutaway view of ratchet that the utlity model has direction control structure.

Critical piece label declaration among the figure: 1 wrench body, 11 accommodation chambers, 12 brake grooves, 13 controls are controlled to piece, 401 containing holes, 402 locating slots, 403 control parts, 41 control strips, 42 elastic top pull device, 421 steel balls, 422 elastic components to groove, top, 131 left side pull hole slot, 20 ratchet-gear wheels, 21C shape button, 30 brake blocks, 301 containing holes, 302 profile grooves, 40 of hole slot, 132 right tops of pulling.

Five, the specific embodiment

Consult Fig. 1 to shown in Figure 4, the utility model provides a kind of ratchet with direction control structure, and this ratchet with direction control structure comprises that mainly a wrench body 1, a ratchet-gear wheel 20, a brake block 30 and a control are to mechanism; Wherein: the head of this wrench body 1 is provided with an accommodation chamber 11, the side of accommodation chamber 11 is formed with a brake groove 12, in addition, also be provided with a control to groove 13, control forms a connected state to 12 of groove 13 and brake grooves, and in accommodation chamber 11 and brake groove 12 can be respectively be placed in for ratchet-gear wheel 20 and brake block 30, and make it be engagement, this control is ccontaining to mechanism for control to groove, and this control forms the left and right top hole slot 131,132 of pulling to the groove back;

This control comprises a control to piece 40, a control strip 41 and the elastic top device 42 of pulling to mechanism, and this elastic top device 42 of pulling comprises a steel ball 421 and an elastic component 422; It is ccontaining for the elastic top device 42 of pulling that control is provided with a containing hole 401 to piece 40, and steel ball 421 can be pushed up pull in control in hole slot 131,132 is pulled on the left and right top of groove, thereby reach locating effect, this control is provided with a locating slot 402 in addition to piece 40 and inserts solid for control strip 41 near containing hole, take place with the situation that prevents elastic top to pull device 42 has slippage to eject when switching, control then forms to piece 40 1 ends and comparatively coarsely pushes the control part 403 of switching for the user;

These brake block 30 upper ends can be meshed with ratchet-gear wheel 20, brake block 30 bottoms then are provided with a containing hole 301, this containing hole can be sheathed for the pull elastic component 422 of device 42 of elastic top, make the elastic top part of pulling provide elastic force to replace ratchet-gear wheel 20 to brake block 30, near this brake block 30 side containing hole is formed with a profile groove 302, this profile groove is a bit larger tham the width of control strip 41 front ends, so the front end of control strip 41 can be placed in the profile groove of brake block 30.

The utility model when assembling, will control an end that is provided with containing hole and locating slot to piece 40 earlier and insert control in groove, again control strip 41 is inserted the locating slot of controlling to piece 40 (as shown in Figure 2) by brake groove 12; The elastic top end that device 42 is provided with steel ball 421 of pulling is inserted the containing hole of control to piece 40 by brake groove 12, and brake block 30 is inserted in the brake groove 12, make the pull other end of device 42 of control strip 41 and elastic top be placed in profile groove and the containing hole; At last ratchet-gear wheel 20 is inserted in the accommodation chamber 11 of wrench body 1 head, by C shape button 21 ratchet-gear wheel 20 is limited in the accommodation chamber 11, make ratchet-gear wheel 20 be meshed with brake block 30, and be rotatable state, like this, just finish the assembling of the utility model ratchet direction control structure, this control strip 41 is solidly plugged in the locating slot of control to piece 40, can prevent that to piece 40 the pull elastic component 422 of device 42 of elastic top from ejecting by this control, to reduce fault generation probability; One end of this control strip 41 is placed in the brake block profile groove, so, when controlling, can drive brake blocks 30 by control strip 41 to piece 40 switching positions, brake block 30 is moved thereupon.

Consult Fig. 3, Fig. 5 and shown in Figure 6, when controlling when piece 40 is positioned at control to the groove left end, the pull steel ball 421 of device 42 of this elastic top just is absorbed in control in hole slot 131 is pulled on top, a groove left side, control can not slided easily to piece 40, at this moment, control is subjected to the pull ejection of device 42 elastic components 422 of elastic top to piece 40, and mesh with ratchet-gear wheel 20 lower lefts, when ratchet-gear wheel 20 is stressed when desiring to be clockwise direction and rotating, because fastened inwall at brake groove 12 with brake block 30 left ends of ratchet-gear wheel 20 engagement, so do not have the space give up the throne, and ratchet-gear wheel 20 also can't carry out clockwise rotation, so switching screw tightening clockwise; Otherwise, (20 stressedly desire to be when counterclockwise rotating when ratchet-gear wheel, because of brake block 30 right-hand members do not have any barrier, so, as long as the rotation strength of ratchet-gear wheel 20 just can make brake block 30 give up the throne to the right greater than the strength of elastic component 422, and the profile groove of brake block 30 is a bit larger tham control strip 41, so when brake block 30 is given up the throne to the right, can't be controlled obstructing of sheet 41, and make ratchet-gear wheel 20 can carry out anticlockwise rotation; And desire is switched when pulling direction, can come complete operation to the control part of piece 40 by control; When the user forced in control part and stirs to the right, this control will be moved right to piece 40, and control strip 41 one ends of control on piece 40 are placed in the profile groove of brake block 30, so control strip 41 can drive brake block 30 slippage to the right; When control to piece 40 dislocation controls during to the groove right-hand member, then the pull steel ball 421 of device 42 of elastic top is absorbed in control in hole slot 132 is pulled on the right top of groove, and with elastic component 422 ejection brake blocks 30, utilizes above-mentioned identical principle to make ratchet-gear wheel 20 rotate counterclockwise, so, can counterclockwise pull screw tightening; Hence one can see that the utlity model has the ratchet of direction control structure, utilize control strip 41 not only can reach to prevent the elastic top device 42 of pulling from ejecting the problem of escapes, drive brake block 30 that can be effectively certain more, the elastic component 422 of device 42 is driving brake block 30 when traversing in order to avoid elastic top is pulled, be subjected to the lateral stress effect and be out of shape, so can prolong life of product.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of ratchet with direction control structure comprises a wrench body, ratchet-gear wheel, brake block and a direction control structure; It is characterized in that: described wrench body head is provided with an accommodation chamber, the accommodation chamber side is formed with a brake groove, be provided with a control in addition to groove, control forms a connected state between groove and brake groove, accommodation chamber and brake groove are respectively equipped with ratchet-gear wheel and brake block, and making it be the engagement shape, a direction control structure is located at control to groove; This brake block bottom is provided with a containing hole, and contiguous containing hole one side is provided with profile groove; This direction control structure comprises that a control is to piece and be arranged on the elastic top of control on piece pull a device and a control strip, this elastic top pulls that device one end is contained in the containing hole of brake block and the ejection brake block, make the engagement of brake block and ratchet-gear wheel, this control strip one end is placed on the profile groove of brake block.

2, the ratchet with direction control structure according to claim 1 is characterized in that, described control is provided with the left and right top hole slot of pulling to the bottom land end; The described elastic top device of pulling is made up of a steel ball and an elastic component, and this steel ball is absorbed in left and right top and pulls in the hole slot.