CN2765728Y - Novel dual-purpose ratchet wrench - Google Patents
Novel dual-purpose ratchet wrench Download PDFInfo
- Publication number
- CN2765728Y CN2765728Y CN 200520038924 CN200520038924U CN2765728Y CN 2765728 Y CN2765728 Y CN 2765728Y CN 200520038924 CN200520038924 CN 200520038924 CN 200520038924 U CN200520038924 U CN 200520038924U CN 2765728 Y CN2765728 Y CN 2765728Y
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- CN
- China
- Prior art keywords
- tooth
- spring
- ratchet
- novel dual
- ratchet spanner
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel dual-purpose ratchet wheel wrench which comprises a wrench handle, wherein both end parts of the handle are provided with driving wrench bodies and a penetrative containing hole is arranged in the handle. The containing hole contains a tooth sleeve, wherein the outer ring of the tooth sleeve is provided with ratchets and the inner ring is provided with inner teeth. The tooth sleeve uses a fixed piece to make axial positioning. One side of the containing hole is provided with a containing groove, and a tooth block with ratchet pawl teeth, a supporter, and a spring of a pushing tooth block, which is engaged with the tooth sleeve, are arranged in the containing groove. The spring is transversely arranged in the supporter, one end of the spring is connected with the tooth block and the other end is sheathed on a convex sheet of the supporter. The supporter is inlaid in a bottom hole of the containing groove through a folding edge. The utility model changes the set direction and the connection mode of the spring to cause the spring to stably position. The utility model can ensure that the pushing force of the engagement of the tooth block and the tooth sleeve is stable and reliable, and the effective rotation work of the ratchet wheel wrench can be enhanced. Simultaneously, the tooth shapes of the inner teeth of the tooth sleeve and the ratchets are improved. The phenomena of angle turn and deformation which are caused by repeatedly screwing a hexagonal fastening piece can be avoided, and the abrasions between the tooth sleeve and the inner holes of the wrench bodies can be lightened. Thereby, the phenomenon of ineffective slippage operation can be overcome and the service life can be raised.
Description
Technical field
The utility model relates to a kind of hand-operated tools, the ratchet spanner of especially novel dual-purpose.
Background technology
In mechanical processing industry, ratchet spanner is very common hand-operated tools, and it utilizes the one way engagement of ratchet and pawl teeth to realize dismounting and installation to securing member.The disclosed technical scheme of Chinese patent 03258143.2 " improved ratchet spanner " is: by spanner handle, be built in jump ring that the tooth cover of spanner handle drive end, tooth piece, pushing tow tooth piece and the spring and the fixed teeth of the engagement of tooth cover with tooth cover ratchet engagement overlap etc. and form, the defective of this scheme is: 1. spring is vertically to be located in the tank bottom outlet, top is free end, tooth piece side has a lug to insert in the coil of spring, and the tooth piece is subjected to the elastic force effect of spring and produces one and upwards shore and strength that side direction pushes.This scheme when the pawl teeth of the ratchet of tooth cover and tooth piece meshing and the process of hocketing of skidding in, owing to can making the tooth piece promote spring, the relation of active force and reaction force causes the spring bending distortion, thereby the strength that strength that spring is lost upwards shore and side direction push, the tooth piece just can't reach and the good engagement of tooth cover, and the engagement reliability is poor; 2. spring is imbedded the tank bottom outlet must certain degree of depth, otherwise very easily is pushed out the disengaging bottom outlet, has caused the difficulty of dark bottom outlet processing; 3. tooth cover internal tooth profile of tooth is a triangle, after the securing member turret head is repeatedly pulled, causes that hexagonal turns over the angle phenomenon, spanner rotary manipulation process is easily caused skid, and causing can't the turn securing member and operation failure; 4. tooth cover outer shroud ratchet is a linear, easily causes with to pull the friction of body endoporus violent and cause the life-span to be reduced.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and provides a kind of spring push tooth piece to make the reliable and stable novel dual-purpose ratchet spanner that can not cause that securing member turns over the angle phenomenon of tooth piece and tooth cover engagement is first purpose; Provide simultaneously that a kind of to alleviate tooth cover ratchet and pull the friction of body endoporus, improve the novel dual-purpose ratchet spanner in ratchet spanner service life be second purpose.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of novel dual-purpose ratchet spanner, it includes a spanner handle, and body is pulled for driving in the both ends of spanner handle, and driving to pull has the containing hole that runs through in the body, and a ccontaining outer shroud is that ratchet, interior ring are the tooth cover of internal tooth in the hole, and makes axial location with fixture; Also be provided with a tank in containing hole one side, be provided with the tooth piece of the movable band pawl teeth that cooperates and the spring of pushing tow tooth piece and the engagement of tooth cover in the tank, it is characterized in that:
A), the described spring one end that is located in the tank is connected with the tooth piece, the other end is sleeved on the support lug, and locatees horizontally in support, and the support close-fitting is embedded in tank, and with its flanging and the grafting of tank bottom outlet;
B), described tooth cover internal tooth cross section profile of tooth is by circular arc line and rectilinear(-al), two straight lines of adjacent profile of tooth intersect angle α, the central angle on two straight-line intersections and circular arc summit is β.
Described tooth cover outer shroud is concave arc shape, the corresponding concave arc shape structure that is of ratchet.
Described tooth piece can be the protruding socket of buckleing of bearing coil and tooth piece with being connected of spring, or the grafting of bearing coil and tooth piece blind hole.
Described fixture is " C " type jump ring, should " C " type jump ring be arranged on by pulling in the annular groove that body and tooth cover be together to form.
The adjacent straight line intersection clip angle α of described tooth cover internal tooth is 146.5 ° ± 0.2 °, and the central angle β on two straight-line intersections and circular arc line summit is 15 ° ± 0.2 °.
The combination of the ratchet spanner of combination that body can be ratchet spanner and open-end wrench or two kinds of different specification sizes is pulled in the driving of described spanner handle.
Compared with prior art, what the utility model had changed spring is provided with direction and connected mode, make spring obtain very stable location, the pushing tow strength that can guarantee the engagement of tooth piece and tooth cover is also reliable and stable, thereby having improved ratchet spanner can effectively rotate and carry out work, tank bottom outlet working depth is little, does not have the difficulty of processing problem; The change of tooth cover internal tooth profile of tooth has been avoided turning round repeatedly and has been twisted hex bolts or nut and cause and turn over the angular deformation phenomenon, makes securing member still harmless as new, skids when also having overcome operation and causes the failure phenomenon; The concave arc shape structure of tooth cover ratchet makes and pulls the body endoporus and reduced contact-making surface, thereby reduces the degree of wear each other, improves spanner service life.
Description of drawings
Fig. 1 is a perspective exploded view of the present utility model.
Fig. 2 is the utility model sectional structure chart.
Fig. 3 is toothing enlarged drawing in the tooth cover.
The specific embodiment
In conjunction with above-mentioned accompanying drawing embodiment the utility model is described in detail.
Shown in Fig. 1～3, novel dual-purpose ratchet spanner includes a spanner handle 1, and body 11 is pulled for driving in the both ends of spanner handle, and it is that ratchet spanner, the other end are open-end wrench that body one end is pulled in the driving of present embodiment, open-end wrench can be fork spanner or adjustable wrench also, has the dual-purpose function.
The driving of ratchet spanner is pulled a containing hole that runs through 111 in the body 11, ccontaining tooth cover 2 in the hole, tooth is enclosed within the containing hole and makes axial location with fixture, and described fixture is " C " type jump ring 3, should " C " type jump ring be arranged on by pulling in the annular groove 23 that body and tooth cover be together to form.
Pull body containing hole 111 1 sides and be provided with tank 112, process a bottom outlet 113 at the bottom of the tank, be provided with tooth piece 4, support 6 and spring 5 in the tank, the tooth piece is engaged in the tank with activity, its surperficial pawl teeth 42 can be overlapped ratchet 21 engagements with tooth and be finished transmission of power, and there is a protruding button 41 end.Support is embedded in tank 112 with close-fitting, and both wings 62, lug 61 and flanging 63 are arranged on the support, and flanging and tank bottom outlet plug.Support is made by sheet iron, and the lug punching press on it forms, and both wings and flanging form by bending technique.Spring 5 horizontal being positioned in the support both wings 62, one end end circle and tooth piece be protruding to be buckled 41 and socket-connects, and other end end snare is contained on the support lug 61, and the elastic force of spring acts on the pushing tow tooth piece fully, makes the tooth piece reach engagement purpose with the tooth cover fully.
When the rotating ratchet spanner, the ratchet that tooth puts can engage the pawl teeth on the tooth piece, and by tooth piece and tank against, the tooth cover can't be rotated, reach the purpose of turn securing member; During the backward rotation ratchet spanner, the ratchet of the pawl teeth on the tooth piece and tooth cover breaks away from and skids, and ratchet spanner retreats to the home position and is next time fastening the preparing of turn.
Claims (6)
1, a kind of novel dual-purpose ratchet spanner, it includes a spanner handle (1), body (11) is pulled for driving in the both ends of spanner handle, driving is pulled the containing hole (111) that runs through in the body, a ccontaining outer shroud is that ratchet (21), interior ring are the tooth cover (2) of internal tooth (22) in the hole, and makes axial location with fixture; Also be provided with a tank (112) in containing hole one side, be provided with tooth piece (4) and the pushing tow tooth piece (4) and the spring (5) that tooth cover (2) meshes of the movable band pawl teeth (42) that cooperates in the tank, it is characterized in that:
A), described spring (5) the one end that is located in the tank is connected with tooth piece (4), the other end is sleeved on support (6) lug (61), and locate horizontally in support, and the support close-fitting is embedded in tank, and pegs graft with its flanging (63) and tank bottom outlet (113);
B), described tooth cover (2) internal tooth (22) cross section profile of tooth is by circular arc line and rectilinear(-al), two straight lines of adjacent profile of tooth intersect angle α, the central angle on two straight-line intersections and circular arc line summit is β.
2, novel dual-purpose ratchet spanner according to claim 1 is characterized in that described tooth cover (2) outer shroud is concave arc shape, the corresponding concave arc shape structure that is of ratchet (21).
3, novel dual-purpose ratchet spanner according to claim 1 and 2 is characterized in that described tooth piece (4) and being connected of spring (5) can be bearing coils and the tooth piece is protruding buckles the socket of (41) or the grafting of bearing coil and tooth piece blind hole.
4, novel dual-purpose ratchet spanner according to claim 1 and 2 is characterized in that described fixture is " C " type jump ring (5), should " C " type jump ring be arranged on by pulling in the annular groove (23) that body and tooth cover be together to form.
5, novel dual-purpose ratchet spanner according to claim 1 is characterized in that the adjacent straight line intersection clip angle α of described tooth cover internal tooth (22) is 146.5 ° ± 0.2 °, and the central angle β on two straight-line intersections and circular arc line summit is 15 ° ± 0.2 °.
6, novel dual-purpose ratchet spanner according to claim 1, the driving that it is characterized in that described spanner handle (1) are pulled the combination of the ratchet spanner of combination that body (11) can be ratchet spanner and open-end wrench or two kinds of different specification sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038924 CN2765728Y (en) | 2005-01-12 | 2005-01-12 | Novel dual-purpose ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520038924 CN2765728Y (en) | 2005-01-12 | 2005-01-12 | Novel dual-purpose ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765728Y true CN2765728Y (en) | 2006-03-22 |
Family
ID=36606389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520038924 Expired - Fee Related CN2765728Y (en) | 2005-01-12 | 2005-01-12 | Novel dual-purpose ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765728Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128395A1 (en) * | 2007-04-23 | 2008-10-30 | Chunwei Yang | A unidirectional ratchet wrench |
| TWI417170B (en) * | 2011-12-09 | 2013-12-01 | ||
| CN107225529A (en) * | 2016-03-25 | 2017-10-03 | 赖四正 | Ratchet spanner clamping structure |
| CN110253508A (en) * | 2019-07-08 | 2019-09-20 | 苏州市职业大学 | A kind of Novel socket wrench |
-
2005
- 2005-01-12 CN CN 200520038924 patent/CN2765728Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128395A1 (en) * | 2007-04-23 | 2008-10-30 | Chunwei Yang | A unidirectional ratchet wrench |
| TWI417170B (en) * | 2011-12-09 | 2013-12-01 | ||
| CN107225529A (en) * | 2016-03-25 | 2017-10-03 | 赖四正 | Ratchet spanner clamping structure |
| CN110253508A (en) * | 2019-07-08 | 2019-09-20 | 苏州市职业大学 | A kind of Novel socket wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060322 Termination date: 20110112 |