CN202763737U

CN202763737U - Ratchet spanner structure

Info

Publication number: CN202763737U
Application number: CN 201220293708
Authority: CN
Inventors: 陳怡富
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2013-03-06
Anticipated expiration: 2022-06-21

Abstract

A ratchet spanner structure comprises a spanner body, a driving component, a seal cover piece and a direction control component, wherein a through hole is formed in the head end of the spanner body and penetrates through the head end; an accommodating groove is formed in the inner wall of the through hole in a concave manner; an assembly groove for assembling the direction control component is formed in the bottom of the accommodating groove and is concaved towards the tail end of the spanner body; an inner concave positioning groove is formed in the bottom of the assembly groove; the driving component comprises a ratchet ring and a brake block; a ring tooth part is arranged on the circumference of the ratchet ring in a circling manner; a binding face propped against the wall of the accommodating groove is formed in each of two sides of the brake block; the brake block is provided with two adjacent meshing teeth, which are arranged in a circling manner, correspond to the ring tooth part and are meshed with the ring tooth part; the seal cover piece covers the through hole and the accommodating groove; an assembly opening for sleeving the ratchet ring is formed in the seal cover piece in a position corresponding to the ratchet ring; and the direction control component comprises a shifting piece, a first elastic piece and a second elastic piece. According to the ratchet spanner structure, a toothed ring meshed with the ratchet ring can be stabilized by the brake block, so that the acting force on the brake block is dispersed, and the quick abrasiveness of teeth of the toothed ring and the brake block is reduced.

Description

Ratchet wrench structure

Technical field

The utility model is a kind of ratchet wrench structure, in details of the words is in the time of reducing the spanner action, the active force that brake block within it bears, and reduce to take and often eliminate the cost that changes inner unit or whole spanner.

Background technology

Now construction, maintenance, in the hand-held tool of dismounting or the upper required use of assembling, generality is as one of the highest hand-held tool of utilization rate take ratchet spanner, and the assembly of the ratchet spanner of generally arranging in pairs or groups is as main take screw and swivel nut, in its dismounting, all very convenient also the easiest left-hand seat uses on the assembling screw lock, yet, general ratchet spanner kind pattern on the market is numerous,, existing ratchet spanner is provided with a head end in an end, this head end then is equipped with a ratchet mechanism, this ratchet mechanism then is provided with one can be for the drive division of sleeve or screw combination, ratchet spanner is bestowed reciprocating force so that the user sees through gripping, make the unidirectional turn drive division of ratchet mechanism, in order to reach the fast function of lax or clamping screw.

Yet, although can effectively help the user to operate on the prior art, and reach dismounting, the actions such as assembling,, within it on the cage structure, in the brake block design in the general existing ratchet spanner, for being rotated when moving, the sour jujube ring has some setbacks, or rotate laboriously situation generation, design with the intermeshing brake block of ring gear inner, nothing but can mesh ring gear and not to be subject to fastening of wrench body, so pull body as major technique arranging all of brake block not touch,, namely have thus a problem, part in the engagement of the ring gear of brake block and sour jujube ring, because the engagement of the brake block under use state ring gear has only utilized the tooth of an end parts to remove to mesh ring gear, when in dismounting or the action of assembling screw lock screw, brake block has the gap with pulling between the body, must bear all active forces so brake block meshes an end of ring gear, so, under long-time accumulation is used, accelerate easily the tooth of brake block and the ring gear corrupted of sour jujube ring, and must change assembly, or replace whole group of ratchet spanner, so, wait on the prior art and need be improved, to meet general popular the use.

Now exemplify again the ratchet spanner explanation of another kenel, see also TaiWan, China notification number I333880 " bidirectional ratchet spanner structure improvement ", about a kind of bidirectional ratchet spanner structure improvement, it comprises: a body tool one accommodating hole, the first tank, retaining ring groove, first support edge, this accommodating hole one side is established a storage tank, and this nearly storage tank place establishes a control flume and pearl groove; One ratchet is provided with fit section, and this ratchet outer peripheral edges system is provided with the tooth engaged of annular arrangement, and this ratchet system is hubbed in the accommodating hole; One tooth one side processed is established the clamping tooth that can be meshed with tooth engaged, and this tooth processed in addition side is established circular-arc cancave cambered surface, and the left and right sides of this cancave cambered surface is flange, and this tooth processed is placed in the storage tank; Control structure comprises: this Control Component is provided with one and holds the hole, and these appearance hole two sides are provided with end face, and this end face is resisted against on the flange, and this Control Component is hubbed in the control flume; Should frontly be located in the hole to cap and elastic parts, support crown before this and be butted on the cancave cambered surface; Should be located in the pearl groove to cap and elastomer, should support cap and be butted on the recessed edge of Control Component because of elastomeric elastic force.

Above-mentioned " bidirectional ratchet spanner structure improvement " is same as the prior art, all be not easy to use the person and operate use, but, " bidirectional ratchet spanner structure improvement " is also same as the prior art on its shortcoming, single clamping tooth interlock ratchet on one side that only utilizes, the active force that tooth processed is born is larger, under long-term the use, cause easily the tooth of tooth processed and tooth corrupted or the consumption mill of ratchet, further cause ratchet to rotate or can't the one direction snap-in location, cause to expend unnecessary expense and replace assembly or whole group replacing.So " bidirectional ratchet spanner structure improvement " needs to be improved again, to be fit to popular the use.

In view of this, inventor's aforementioned in order to improve " bidirectional ratchet spanner structure improvement " and in the past on the prior art, the brake block of ratchet spanner inside can't mesh by ring gear effectively firm and the sour jujube ring, and cause consume mill or the corrupted of ring gear and brake block, further need expend unnecessary expense replaces assembly or changes the whole group of shortcoming such as ratchet spanner, therefore, utilize many time input research relevant knowledges and mode, and more every quality in addition, and carry out the research and development of Related product, and go through many experiments and test, and utility model goes out a kind of " ratchet wrench structure " finally, and it is to improve " bidirectional ratchet spanner structure improvement " and prior art, makes brake block can firmly mesh the ring gear of sour jujube ring, with the dispersion active force that brake block was born, and the tooth of reduction ring gear and brake block wears away fast.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the defects that prior art exists, and provide a kind of ratchet wrench structure, make spanner when it moves, because being posted by, the both sides of brake block accommodate the groove cell wall, to disperse the active force that brake block was born, it can improve on the prior art, brake block is larger because of the required active force that bears, and the brake block list only relies on the ring gear of single-ended engagement sour jujube ring, under using for a long time, causes easily brake block and ring gear consumption mill to accelerate, and cause interlock not really or have the situation of taking off tooth to occur, further cause expending the shortcoming of unnecessary expense and cost replacing assembly.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of ratchet wrench structure, it includes one and pulls body, a driven unit, a cover closing member and a control to assembly, wherein:

This pulls the perforation that the body head end is provided with consistent penetrator end, being positioned at again the perforation inwall is concaved with one and accommodates groove towards pulling the body end, and this wherein side direction that accommodates groove both sides cell wall is opened outward and is formed a port, be concaved with one for the assembling grove of control to the part installing and accommodate the groove bottom land towards pulling the body end, this assembling grove bottom land is provided with the locating slot of an indent again;

This driven unit includes a sour jujube ring and a brake block, this sour jujube ring is installed in the perforation, and sour jujube ring outer circumferential side is equipped with a circular tooth part, and this brake block is installed in and accommodates in the groove, and the brake block both sides respectively have one with accommodate the binding face that the groove cell wall sticks to mutually, and the corresponding sour jujube of brake block is equipped with two tooth engaged intermeshing and adjacent with circular tooth part;

This cover closing member covers perforation and accommodates the port of groove, and the corresponding sour jujube ring position of cover closing member is provided with an assembly mouth that wears the sour jujube ring:

This control includes one to assembly and allots part, one first elastic component and one second elastic component, this is alloted part and is hubbed at assembling grove, be provided with two adjacent recesses and allot the corresponding locating slot of part, this first elastic component is mounted in the locating slot and a butted wherein recess of alloting part, and this second elastic component is mounted on and allots part and establish jagged end opposite and butted brake block.

The utility model ratchet wrench structure further includes following technical characterictic:

1. corresponding the second elastic component of this brake block is provided with an allocating slot, and this second elastic component is by the switching of the switching of alloting part with the control brake block.

2. this is alloted the end that the part group is provided with the second elastic component and is provided with a groove, and an end of the second elastic component is butted in the groove bottom land, and the other end then abuts against in the allocating slot of brake block.

3. this first elastic component and the second elastic component respectively have an elastic portion and a location division, elastic portion one end of this first elastic component is butted in the locating slot bottom land, the other end is the location division of butted the first elastic component then, and the location division of this first elastic component is subjected to the butted of spring section and fasten in two recesses one of them, and the butted groove bottom land of spring section one end of the second elastic component, the other end is the location division of butted the second elastic component then, and the location division of this second elastic component is subjected to the butted of spring section and abuts against in the allocating slot of brake block again.

4. this cell wall that accommodates groove is the arc concavity, is convex arc-shape and the both sides that brake block sticks to accommodate the groove cell wall relatively.

5. the assembly mouth periphery of this cover closing member is concaved with a location annular groove.

6. this corresponding positioning ring groove of perforation hole wall of pulling body is provided with a spacing circular groove in addition, be clamped on positioning ring groove and be provided with in addition a clip ring, and this clip ring outer circumferential side is embedded in the spacing circular groove.

The beneficial effects of the utility model are, it makes spanner when it moves, because being posted by, the both sides of brake block accommodate the groove cell wall, to disperse the active force that brake block was born, it can improve on the prior art, brake block is larger because of the required active force that bears, and the brake block list only relies on the ring gear of single-ended engagement sour jujube ring, use for a long time lower, cause easily brake block and ring gear consumption mill to accelerate, and cause interlock not really or have the situation of taking off tooth to occur, further cause expending the shortcoming of unnecessary expense and cost replacing assembly.

Description of drawings

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

Fig. 1 is three-dimensional combination schematic diagram of the present utility model.

Fig. 2 is assembly exploded perspective schematic diagram of the present utility model.

Fig. 3 is AA line segment generalized section shown in Figure 1.

Fig. 4 is BB line segment generalized section shown in Figure 1.

Fig. 5 is that the utility model is alloted the rear generalized section of part switching.

The number in the figure explanation:

1 pulls body 11 perforation

110 spacing circular grooves 12 accommodate groove

121 ports, 13 assembling groves

14 locating slots

2 driven units, 21 sour jujube rings

210 circular tooth parts, 22 brake block

220 binding faces, 221 tooth engaged

222 allocating slots

3 cover closing member, 31 assembly mouths

32 positioning ring grooves, 33 clip rings

4 controls are alloted part to assembly 41

410 recesses, 411 grooves

42 first elastic components, 421 elastic portion

422 location divisions, 43 second elastic components

431 elastic portion, 432 location divisions

The specific embodiment

In order to reach the brake block of above-mentioned firm spanner inside, and the active force that disperses brake block to bear, and improve on the prior art excessive because of single active force that only leans on brake block engagement sour jujube ring to bear, under long-term the use, cause easily the abrasion between brake block and the sour jujube ring to be accelerated, further cause the interlock between brake block and the sour jujube ring uncertain, or the shortcomings such as situation generation of taking off tooth are arranged.The utility model relates to a kind of " ratchet wrench structure ", relevant its effect and characteristics, and below the collocation relevant drawings is done a simple embodiment explanation.

See also Fig. 1 to shown in Figure 3, the utility model is a kind of ratchet wrench structure, and it includes one and pulls body 1, a driven unit 2, a cover closing member 3 and a control to assembly 4, wherein:

This pulls the perforation 11 that body 1 head end is provided with consistent penetrator end, being positioned at again perforation 11 inwalls is concaved with one and accommodates groove 12 towards pulling the body end, and this wherein side direction that accommodates groove 12 both sides cell walls is opened outward and is formed a port 121, be concaved with one for the assembling grove 13 of control to assembly 4 installings and accommodate groove 12 bottom lands towards pulling body 1 end, these assembling grove 13 bottom lands are provided with the locating slot 14 of an indent again;

This driven unit 2 includes a sour jujube ring 21 and a brake block 22, this sour jujube ring 21 is installed in the perforation 11, and sour jujube ring 21 outer circumferential sides are equipped with a circular tooth part 210, and this brake block 22 is installed in and accommodates in the groove 12, and brake block 22 both sides respectively have one with accommodate the binding face 220 that groove 12 cell walls stick to mutually, and brake block 22 corresponding sour jujube rings 21 are provided with two tooth engaged 221 intermeshing and adjacent with circular tooth part 210;

This cover closing member 3 covers perforation 11 and accommodates the port 121 of groove 12, and cover closing member 3 corresponding sour jujube rings 21 positions are provided with an assembling 31 that wears sour jujube ring 21;

This control includes one to assembly 4 and allots part 41, one first elastic component 42 and one second elastic component 43, this is alloted part 41 and is hubbed at assembling grove 13, be provided with two adjacent recesses 410 and allot part 41 corresponding locating slots 14, this first elastic component 42 is mounted in the locating slot 14 and butted wherein recesses 410 of alloting part 41, and this second elastic component 43 is mounted on and allots end opposite and the butted brake block 22 that part 41 is provided with recess 410;

Accordingly, when being installed in the sour jujube ring 21 corresponding screwed locks of pulling body 1 if during the action of dismounting, circular tooth part 210 can be done with brake block 22 and jump the do action that meshes behind the tooth, and brake block 22 accommodates groove 12 cell walls by sticking to, with the active force (the utility model is take Fig. 1 to Fig. 3 as the utility model main embodiment) that disperses sour jujube ring 21 to be produced when moving.

See also Fig. 4 to shown in Figure 5, and take Fig. 2 as assisting and illustrate its control action, when the user utilizes when pulling body 1 lock and establishing screw, it is sheathed and fasten screw to pull first the sour jujube ring 21 of body 1, further operating the end of pulling body 1 swings back and forth it, and pull brake block 22 in the body 1 because of pulling the action of body 1, and the tooth engaged 221 of its brake block 22 1 ends is done with the circular tooth part 210 of sour jujube ring 21 jumped the do action that meshes behind the tooth, reach and lock the effect of establishing screw;

Otherwise, when wanting reverse operation with the removal screw, switch first and allot part 41 meshes circular tooth part 210 originally to change brake block 22 tooth engaged 221 disengaging engagements, and make other end tooth engaged 221 mesh circular tooth parts 210, and the binding face 220 on brake block 22 both sides because of the switching of alloting part 41 along the cell wall displacement that accommodates groove 12, so, by the position of brake block 22 switchings and change and circular tooth part 210 engagements, further reach the effect of removal screw.

According to the aforesaid operations action specification, existing under enumerate explanation advantage of the present utility model:

1. according to the utility model technical characteristics, the binding face 220 of brake block 22 both sides is posted by the cell wall that accommodates groove 12, in order to disperse and to alleviate the active force that sour jujube ring 21 brake block 22 when the action bears, and make circular tooth part 210 and the tooth engaged 221 of brake block 22 can smooth and easyly do the rear do action of jumping tooth of engagement, with firm and strengthen the engagement of brake block 22 and circular tooth part 210, reduce the abrasion between brake block 22 and the circular tooth part 210.

2. according to above-mentioned said advantage, and mutually relatively more lower with prior art, the circular tooth part 210 of the utility model sour jujube ring 21 and the tooth engaged of brake block 22 221 arrange, and stick to by the binding face 220 of brake block 22 and to accommodate groove 12 cell walls, with firm the utility model stability when moving, avoiding prior art to utilize monolateral engagement to cause the life-span of assembly to be reduced, and the utility model further reduces cost and the man-hour of changing assembly, or avoids the whole group of cost of replacing and producing unnecessary expense.

See also Fig. 2, Fig. 4 and shown in Figure 5, at the binding face 220 of these brake block 22 both sides and accommodate aspect the arranging of groove 12, in order effectively to reach above-mentioned illustrated advantage, this cell wall that accommodates groove 12 of the utility model is the arc concavity, be convex arc-shape and the binding face 220 of brake block 22 both sides accommodates groove 12 cell walls relatively, by the setting that accommodates groove 12 cell walls and brake block 22 both sides binding faces 220, brake block 22 can be swung along accommodating groove 12 cell walls, the smooth and easy swing of energy when further making brake block 22 action, and really mesh circular tooth part 210 (the utility model is that to accommodate groove 12 cell walls be arc concavity and brake block 22 both sides binding faces 220 for convex arc-shape is bestly to implement kenel, but is not to limit other enforceable kenel).

Now with every assembly its effect of institute of following detailed description and set-up mode:

1. see also Fig. 2, Fig. 4 and shown in Figure 5, allot part 41 in switching simultaneously in order to make, the swing of the smooth and easy drive brake block 22 of energy, end at brake block 22 corresponding the second elastic components 43 is provided with an allocating slot 222, this second elastic component 43 is by the switching of alloting part 41, with the switching of control brake block 22, and the tooth engaged 221 of firm brake block 22 and the engagement of circular tooth part 210.

2. see also Fig. 2 to shown in Figure 5, this is alloted the end that 41 groups of parts are provided with the second elastic component 43 and is provided with a groove 411, and an end of the second elastic component 43 is butted in groove 411 bottom lands, the other end then abuts against in the allocating slot 222 of brake block 22, swing with control brake block 22, and firmly allot part 41 in the swing while of switching and drive brake block 22, the action after the second elastic component 43 modulated pulling parts 41 switch.

3. according to the utility model technical characteristics and above-mentioned two explanation, the structure of the first elastic component 42 and the second elastic component 43 further is described in detail, see also Fig. 2 to shown in Figure 5, this first elastic component 42 and the second elastic component 43 respectively have an elastic portion 421,431 and one location division 422,432, elastic portion 421 1 ends of this first elastic component 42 are butted in locating slot 14 bottom lands, the other end is the location division 422 of butted the first elastic component 42 then, and the location division 422 of this first elastic component 42 is subjected to the butted of spring section 421 and fasten in two recesses 410 one of them, and butted groove 411 bottom lands of elastic portion 431 1 ends of the second elastic component 43, the other end is the location division 432 of butted the second elastic component 43 then, the location division 432 of this second elastic component 43 is subjected to the butted of elastic portion 431 and abuts against in the allocating slot 222 of brake block 22 again, by the structure set-up mode of the first elastic component 42 and the second elastic component 43, with firm control and fixedly allot location after part 41 switches with brake block 22.

4. see also shown in Figure 2, assembly mouth 31 peripheries of this cover closing member 3 are concaved with a location annular groove 32, and this corresponding positioning ring groove 32 of perforation 11 hole walls of pulling body 1 is provided with a spacing circular groove 110 in addition, further there is in addition a clip ring 33 to be clamped on positioning ring groove 32, and these clip ring 33 outer circumferential sides are embedded in the spacing circular groove 110, to fix and to prevent the disengaging of clip ring 33, and by the installing of clip ring 33, can prevent coming off of cover closing member 3, driven unit 2 disengagings of further avoiding pulling in the body 1 are dropped and corrupted.

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 does.

In sum, the utility model is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that discloses also is to have unprecedented innovative structure, have novelty, creativeness, practicality, the regulation that meets relevant new patent important document is so mention application in accordance with the law.

Claims

1. a ratchet wrench structure is characterized in that, comprises pulling body, a driven unit, a cover closing member and a control to assembly, wherein:

This cover closing member covers perforation and accommodates the port of groove, and the corresponding sour jujube ring position of cover closing member is provided with an assembly mouth that wears the sour jujube ring;

2. ratchet wrench structure according to claim 1 is characterized in that, corresponding the second elastic component of described brake block is provided with an allocating slot, and this second elastic component is by the switching of the switching of alloting part with the control brake block.

3. ratchet wrench structure according to claim 2 is characterized in that, describedly allot the end that the part group is provided with the second elastic component and be provided with a groove, and an end of the second elastic component is butted in the groove bottom land, and the other end then abuts against in the allocating slot of brake block.

4. ratchet wrench structure according to claim 3, it is characterized in that, described the first elastic component and the second elastic component respectively have an elastic portion and a location division, elastic portion one end of this first elastic component is butted in the locating slot bottom land, the other end is the location division of butted the first elastic component then, and the location division of this first elastic component is subjected to the butted of spring section and fasten in two recesses one of them, and the butted groove bottom land of spring section one end of the second elastic component, the other end is the location division of butted the second elastic component then, and the location division of this second elastic component is subjected to the butted of spring section and abuts against in the allocating slot of brake block again.

5. ratchet wrench structure according to claim 1 is characterized in that, the described cell wall that accommodates groove is the setting of arc concavity, is convex arc-shape and the both sides that brake block sticks to accommodate the groove cell wall relatively.

6. ratchet wrench structure according to claim 1 is characterized in that, the assembly mouth periphery of described cover closing member is concaved with a location annular groove.

7. ratchet wrench structure according to claim 6 is characterized in that, the described corresponding positioning ring groove of perforation hole wall of pulling body is provided with a spacing circular groove in addition, and has in addition a clip ring to be clamped on positioning ring groove, and this clip ring outer circumferential side is embedded in the spacing circular groove.