CN2139873Y - Movable spanner with adjustable element and adjusting open with transmission belt - Google Patents
Movable spanner with adjustable element and adjusting open with transmission belt Download PDFInfo
- Publication number
- CN2139873Y CN2139873Y CN 92234188 CN92234188U CN2139873Y CN 2139873 Y CN2139873 Y CN 2139873Y CN 92234188 CN92234188 CN 92234188 CN 92234188 U CN92234188 U CN 92234188U CN 2139873 Y CN2139873 Y CN 2139873Y
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- gear
- transmission device
- wrench
- groove
- screw
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- Expired - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a movable spanner with an adjustable element adjusting an opening with a transmission belt, comprising a fixed spanner body and a movable spanner opening. A worm and a transmission device are installed in the spanner body. A transmission belt in the transmission device drives an engagement gear pair and the worm to adjust the opening. The utility model is characterized in that adjusting components are arranged to adjust a position of the transmission device in order to ensure the normal engagement of the engagement gear pair. A notching is positioned on a concave slot which accommodates the transmission device in order to process and assemble. The utility model is favorable for producing for the batch quantity, and the utility model reduces manufacturing cost further. The utility model has better economic benefit.
Description
The utility model relates to hand-operated tools, and specifically, the utility model relates to a kind of monkey wrench, particularly a kind of have adjust element bring the monkey wrench of regulating the wrench opening size with transmission.
Traditional monkey wrench generally include one link to each other with pinch bar fixedly pull body and a Flexible spanner mouth.Have a tooth bar on the Flexible spanner mouth, be contained in the position that the worm screw of pulling in the body is regulated the Flexible spanner mouth by one, regulate the openings of sizes of jaw of spanner with this.In use normally come rotary worm with hand, because the lift angle of worm screw is subjected to the restriction of self-locking performance, lift angle can not be very big, so worm screw need be rotated repeatedly during manual adjustments jaw opening, just can make jaw open up into enough width, this brings many inconvenience to the user.The occasion that particularly needs frequently to change the jaw openings of sizes is felt inconvenience especially.
U.S. Pat 3,901,107 disclose a kind of monkey wrench of regulating the jaw opening that brings with transmission.This patent at this by incorporated by reference.In the above-mentioned United States Patent (USP), a worm screw is housed, a bevel gear is arranged at the one end at the handle front end.One cover transmission device is arranged at the handle middle part in addition, comprise the driving-belt of a ring-type.Driving-belt is handled slide block by one and is driven, and the front end of driving-belt is meshed with a travelling gear, and a bevel gear is arranged on the external part of travelling gear in addition, and it is meshed with bevel gear on worm screw is held.Handle slide block with hand propelled during use and move back and forth, drive endless belt, and driving-belt drives travelling gear, rotate making worm screw by intermeshing bevel gear again, regulate the openings of sizes of jaw of spanner with this.Engagement bevel gear in the above-mentioned United States Patent (USP) for guaranteeing both normal engaged, needs very high manufacturing and installation accuracy to having only very little modulus and tooth depth usually, and this is a too high factor of cost.On the other hand, there is foozle unavoidably in the transmission device that is installed in the handle middle part, and need certain location tolerance, in other words, there is certain scope the position after whole transmission device is installed, when the location of driving unit improper, when for example being partial to handle rear end, can make the right backlash of bevel gear excessive, cause the bad even jumping tooth of engagement, influence the meshing relation between the actuated element, occur jaw can not adequate closure etc. bad phenomenon.
Another defective of above-mentioned United States Patent (USP) is that the groove that holds transmission device on the wrench body is difficult to processing, goes in also very difficult this groove of packing into easily of transmission device simultaneously.This is because the planform of groove itself causes.In above-mentioned United States Patent (USP), the opening shape of groove on the wrench body outer surface is the strip that two ends are semi arch, owing to the bevel gear in the transmission device stretches out to an end, therefore, for holding this bevel gear, inside grooves and the corresponding position of bevel gear need be hollowed out.Difficulty and cost that this has increased processing have also brought difficulty to assembling simultaneously.
Therefore, the purpose of this utility model is in order to overcome the defective of existing monkey wrench, provides a kind of and is convenient to process and assemble and can guarantees the engaged element normal engaged, adjusts the monkey wrench of jaw opening with driving-belt.
Monkey wrench of the present utility model has the Flexible spanner mouth that a back-up wrench body that comprises handle and can move with respect to wrench body, the wrench body front end have a sliding chamber with one with the parallel groove in sliding chamber, bottom, cunning chamber is connected with groove top.One slipper that is contained in the sliding chamber of wrench body is arranged at the bottom of Flexible spanner mouth, and the bottom of this slipper is provided with a tooth bar, and worm screw is contained in the groove of wrench body and with the tooth bar of Flexible spanner mouth and is meshed.The end of worm screw has one first gear.One cover transmission device is contained in the groove at wrench body middle part, and this biography device comprises a driving-belt that is driven by pushing block, and the tensioning apparatus that comprises this driving-belt.The front end of driving-belt and a travelling gear engagement have one second gear on the external part of travelling gear, second gear is meshed with first gear of worm screw end.Of the present utility model being characterised in that, above-mentioned transmission device comprise a cover plate, and the rear end of cover plate is provided with the adjustment assembly that is used for adjusting the cover plate front and back position, guarantee gear normal engaged on bevel gear and the worm screw with this.The groove front end that holds transmission device has a breach that extends internally from the wrench body outer surface with the corresponding position of second gear, and the shape of the shape of cover forward end and groove front end adapts, and improves the manufacturability of spanner processing and is easy to assembling with this.
In addition, for the ease of using, the profile at the jaw position of the utility model spanner can have fillet, thereby makes spanner enter the operating position easily under the less situation in space, has made things convenient for operation, has enlarged the scope of application.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the front view of the utility model monkey wrench, has represented the breach as the groove front end of the utility model feature.
Fig. 2 is a partial cross-sectional view of the present utility model, has represented an embodiment as the adjustment assembly of the utility model feature.
See figures.1.and.2, monkey wrench of the present invention has the wrench body 1 and the Flexible spanner mouth 2 that comprise handle.The front portion of wrench body 1 have a sliding chamber with one with the parallel groove in sliding chamber, the bottom in sliding chamber communicates with the top of groove.A slipper that is contained in the sliding chamber of wrench body is arranged at the bottom of Flexible spanner mouth 2, and the shape in the sliding chamber of the shape of this slipper and wrench body adapts, so that slipper can slide in the middle of sliding chamber, makes the jaw opening and closing.A tooth bar that is connected as a single entity with slipper is arranged at the bottom of slipper, and a worm screw 3 is housed in the groove of wrench body, and worm screw 3 is meshed with above-mentioned tooth bar.The end of worm screw has one first gear, and this first gear can be a bevel gear or a spur gear, and this first gear also can directly shape on the worm screw end.Worm screw 3 is contained in the groove of wrench body in common mode.For example, one section axle journal is stretched out at the two ends of worm screw 3 respectively, and in the hole of the groove blind end of end insertion wrench body, the other end inserts in the centre bore of nut plug 7.Nut plug 7 is screwed in just can be with worm screw 3 fix in position in the internal thread of groove ends.Can also be provided with on the inner of worm screw 3 and cooperate spring 4.
Regulate the aperture of jaw in order to drive worm screw 3, be provided with a cover transmission device at the wrench body middle part.This transmission device comprises a cover plate 8, and cover plate central authorities have a groove.The upper surface of cover plate is provided with a pushing block 11.The driving-belt 10 that one annular is arranged below the cover plate.The a certain position of driving-belt 10 links to each other with pushing block 11 with profile of tooth pressing plate 12 by screw.Like this, when pushing block 11 moves back and forth, just can drive driving-belt in the groove of cover plate 8.Stretch out two sidewalls on the lower surface of cover plate 8 vertically downward, the interval between the sidewall is suitable with the width of driving-belt 10.For the motion with driving-belt 10 is delivered on the worm screw 3, at the front end of sidewall a travelling gear 5 is housed, this travelling gear and driving-belt are meshing with each other.Travelling gear 5 one distolateral to protruding one section axle journal is equipped with one second gear 6 on this external part.Second gear 6 can be a bevel gear.Second gear 6 is meshed with aforesaid first gear.The tensioning apparatus of driving-belt is located at the postmedian of transmission device, this tensioning apparatus comprises a tensioning plate 14, its end is articulated in the middle part of sidewall by pin 13, and its other end has a drive pulley that freely rotates 15, and the rear end of driving-belt 10 is meshed with drive pulley 15.The tensioning apparatus of driving-belt can be swung to the back upper place around the wheel shaft 13 of its front end, so that tensioning driving-belt 10.
As previously mentioned, right modulus and the tooth depth of the meshing gear in this monkey wrench is all very little usually.In order to guarantee normal engaged, transmission device must have very high manufacturing and assembly precision.Too high required precision must make cost increase.One of feature of the present utility model is to be provided with the adjustment assembly that can adjust cover plate (transmission device just) front and back position, remedy the influence that foozle and rigging error bring for the position of transmission device by this adjustment assembly, also can reduce manufacturing cost simultaneously.As shown in Figure 2, this adjustment assembly comprises one from cover plate 8 extension vertically downward, has fixed 17, one adjustment of nut screw 16 on this extension and has been screwed in the nut 17.Like this, screw 16 can be screwed out where necessary, transmission device integral body is moved forward, make the second first gear normal engaged that gear 6 keeps and worm screw is held of transmission device front end.In addition, also screw 16 can be screwed in where necessary, transmission device integral body is moved backward, make second gear of transmission device front end and first gear of worm screw end satisfy necessary backlash requirement.In a word, adjust the position of transmission device, guarantee the normal engaged of meshing gear by adjusting screw 16.After adjust the position of transmission device, on trip bolt 9 cover plates and the fixing allocation in sight of transmission device.
Adjustment assembly of the present utility model can have multiple different form of implementation.For example, can make extension vertically downward have certain thickness, for example 2～5 millimeters, on this extension, make screw, directly be screwed in the screw of extension adjusting screw 16; Perhaps a nut 17 directly is vertically fixed in common mode on the lower surface of cover plate, will adjusts screw 16 again and be screwed in this nut.
For the ease of processing and assembling, reduce manufacturing cost, realize the purpose of this utility model, on the groove front end that holds transmission device of wrench body, with second gear, 6 corresponding positions a breach 18 that extends internally from the outer surface of wrench body is arranged, in other words, stretch out with second gear, 6 corresponding recessed portions in the wrench body always, arrive the outer surface of wrench body.This is the another important difference of the utility model and prior art.Because barbed portion 18 vertically extends internally from the wrench body outer surface, it is very convenient that processing is got up, and assembles also easily, and the front end shape of cover plate 8 and the front end shape of groove adapt, and promptly cover forward end comprises a projection, so that cover breach 18.
According to feature of the present utility model, transmission device can guarantee positive engagement between engaged element by adjusting screw 16, thereby guarantees promptly fixed drive connection, has avoided the generation of slippage phenomenon, makes the performance of monkey wrench more reliable.Owing to have the adjustment assembly, manufacturing and installation accuracy be unlikely to too harsh.Simultaneously,, be easy to carry out mass production, make the manufacturing cost of this monkey wrench further reduce because the improvement of groove structure has made things convenient for processing and assembling.By reading specification, the understanding that these advantages of the present utility model and other advantage can obtain.
Claims (6)
1, a kind of monkey wrench of opening size with driving-belt adjustment jaw, has the Flexible spanner mouth 2 that a wrench body 1 that comprises handle and can move with respect to wrench body 1, have on the front end of wrench body 1 a sliding chamber with one with the parallel groove in sliding chamber, bottom, sliding chamber is connected with groove top, one slipper that is contained in the sliding chamber of wrench body is arranged at the bottom of Flexible spanner mouth 2, the bottom of this slipper is provided with a tooth bar, worm screw 3 is contained in the groove of wrench body 1 and with the tooth bar of Flexible spanner mouth 2 and is meshed, the end of worm screw 3 has one first gear, one cover transmission device is contained in the groove at wrench body middle part, this transmission device comprises a driving-belt 10 that is driven by pushing block 11, the tension assembly that also comprises driving-belt, the front end of driving-belt 10 is meshed with a travelling gear 5, one second gear 6 is arranged on the external part of this travelling gear, first gear on second gear and the worm screw end is meshed, it is characterized in that: above-mentioned transmission device comprises a cover plate, the rear end of cover plate is provided with the adjustment assembly that is used for adjusting the cover plate front and back position, the front end that holds the groove of transmission device is having a breach that extends internally from the wrench body outer surface with the corresponding position of second gear, and the shape of the shape of cover forward end and groove front end adapts.
2, monkey wrench as claimed in claim 1 is characterized in that described first gear and second gear are bevel gears.
3, monkey wrench as claimed in claim 1 is characterized in that, described adjustment assembly comprises one from cover plate 8 extension vertically downward, has fixed 17, one adjustment of nut screw 16 on this extension and has been screwed in the nut 17.
4, monkey wrench as claimed in claim 1 is characterized in that, described adjustment assembly comprises one from covering 8 vertically downward the extensions of 2～5 millimeters of thickness, and this extension has a screw, adjusts screw 16 for one and is screwed in this screw.
5, monkey wrench as claimed in claim 1 is characterized in that, described adjustment assembly comprises that 17, one adjustment of nut screw 16 that is vertically fixed on cover plate 8 inner surfaces is screwed in this nut.
6, the described monkey wrench of each claim as described above is characterized in that the profile at jaw of spanner position has fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234188 CN2139873Y (en) | 1992-09-30 | 1992-09-30 | Movable spanner with adjustable element and adjusting open with transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234188 CN2139873Y (en) | 1992-09-30 | 1992-09-30 | Movable spanner with adjustable element and adjusting open with transmission belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139873Y true CN2139873Y (en) | 1993-08-11 |
Family
ID=33776327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234188 Expired - Lifetime CN2139873Y (en) | 1992-09-30 | 1992-09-30 | Movable spanner with adjustable element and adjusting open with transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139873Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004065066A1 (en) | 2003-01-23 | 2004-08-05 | Hong Lu | A adjustable wrench for adjusting the width of the jaw quickly |
| CN100336630C (en) * | 2005-04-20 | 2007-09-12 | 徐森良 | Variable angle adjustable spanner |
| US7270035B2 (en) | 2002-11-05 | 2007-09-18 | Hong Lu | Single-wedge wrenches |
| CN101985214A (en) * | 2010-07-13 | 2011-03-16 | 吴江市屯村颜料厂 | Adjustable sliding spanner |
| CN104015133A (en) * | 2014-06-14 | 2014-09-03 | 南车戚墅堰机车有限公司 | Multipurpose hot coiling spring caliper |
-
1992
- 1992-09-30 CN CN 92234188 patent/CN2139873Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7270035B2 (en) | 2002-11-05 | 2007-09-18 | Hong Lu | Single-wedge wrenches |
| WO2004065066A1 (en) | 2003-01-23 | 2004-08-05 | Hong Lu | A adjustable wrench for adjusting the width of the jaw quickly |
| US7299722B2 (en) | 2003-01-23 | 2007-11-27 | Hong Lu | Adjustable wrench for adjusting the width of the jaw quickly |
| AU2003272854B2 (en) * | 2003-01-23 | 2009-01-22 | Hong Lu | An adjustable wrench for adjusting the width of the jaw quickly |
| CN100336630C (en) * | 2005-04-20 | 2007-09-12 | 徐森良 | Variable angle adjustable spanner |
| CN101985214A (en) * | 2010-07-13 | 2011-03-16 | 吴江市屯村颜料厂 | Adjustable sliding spanner |
| CN104015133A (en) * | 2014-06-14 | 2014-09-03 | 南车戚墅堰机车有限公司 | Multipurpose hot coiling spring caliper |
| CN104015133B (en) * | 2014-06-14 | 2016-06-22 | 南车戚墅堰机车有限公司 | Hot coiling spring universal grip pliers |
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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 | ||
| CX01 | Expiry of patent term |