CN106956237A - A kind of chain mounting and adjusting take-up device and its tension method - Google Patents
A kind of chain mounting and adjusting take-up device and its tension method Download PDFInfo
- Publication number
- CN106956237A CN106956237A CN201710346990.8A CN201710346990A CN106956237A CN 106956237 A CN106956237 A CN 106956237A CN 201710346990 A CN201710346990 A CN 201710346990A CN 106956237 A CN106956237 A CN 106956237A
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- eave tile
- bar
- fixed
- pawl
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/22—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning sprocket chains, endless tracks, antiskid chains
Abstract
The present invention provides a kind of chain mounting and adjusting take-up device and its tenses method, described device includes tooth bar and below tooth bar, sliding part for placing the tooth bar, the both sides of the sliding part are parallel to be fixed with baffle plate, rocking bar is hinged with by jointed shaft between two baffle plates, the bottom of the rocking bar, which is hinged with, pawls, the lower section for pawling the hinged place positioned at the baffle plate and the rocking bar, described pawl is engaged with the tooth bar, the bottom of the sliding block is fixed with the first eave tile, the bottom of the tooth bar is fixed with the second eave tile, described device also includes being used to limit the stopping means that the tooth bar moves back tooth.In the present invention, pawl between the tooth being caught on tooth bar, the two ends of chain are individually fixed on the second eave tile of the first eave tile sum, shake rocking bar, are pawled as rocking bar band carry-over bar is moved, make the second eave tile close to the first eave tile, by chain tensioner, the pure craft of a people, which can be grasped, to be done, and improves operating efficiency, the energy is saved, is adapted to various different areas of activity.
Description
Technical field
The present invention relates to technical field of auxiliary equipment, more particularly to a kind of chain mounting and adjusting take-up device and its tension
Method.
Background technology
During installation, adjustment in chain, generally require to a certain extent to carry out chain tensioner with cuff link afterwards
Connection.Multiple personnel operation simultaneously is needed in operation process, because without effective power tool, this operation process needs multiple person cooperational
Carry out, a part of personnel are first with crowbar is by chain tensioner and maintains position, and other staff carry out installing cuff link operation again, time-consuming
Arduously, adjustment degree is bad grasps, and operating efficiency is low；In some different areas of activity, such as the operation ring without electric power, without source of the gas
Border, electronic, Pneumatic expanded instrument can not be used, and installed to chain and brought difficulty；Also, special electric, pneumatic tool price are held high
Expensive, complex structure, volume is larger, poor universality, carries also inconvenient.Need specially to lay power cable or gas during use
Dynamic pipeline, preparation trouble.
The content of the invention
The present invention there is provided a kind of chain mounting and adjusting take-up device and its tenses method in view of the shortcomings of the prior art,
Labor intensity and workmen's quantity are reduced, operating efficiency and quality is improved.
The present invention is achieved through the following technical solutions, and there is provided a kind of chain mounting and adjusting take-up device, including tooth
Rocking bar is hinged with bar and the sliding part for being slidably arranged in tooth bar one end, the sliding part；The bottom of the rocking bar, which is hinged with, to push away
Pawl, pawls and is engaged with above-mentioned tooth bar；The bottom of the sliding part is fixed with the first eave tile, and the other end of the tooth bar is fixed with
Second eave tile corresponding with first eave tile；Shake the rocking bar, promotion of the pawling tooth bar motion makes described the
Two eave tiles are moved towards first eave tile；Described device also includes being used to limit the stopping means that the tooth bar moves back tooth.
Preferably, described device also includes baffle plate, the parallel both sides for being fixed on the sliding part of the baffle plate are described to shake
Bar is hinged between two baffle plates by jointed shaft, described to pawl under the hinged place of the rocking bar and the baffle plate
Side.
In the present invention, tooth bar is positioned on sliding part, the two ends of chain are individually fixed in into the first eave tile and second hooks
On head, when shaking rocking bar, pawl and moved with the shake of rocking bar, move tooth bar, so as to drive the second eave tile to the first eave tile
It is close, prevent that tooth bar from moving back tooth by chain tensioner, and by stopping means.Using ratchet step by step structure, the pure craft of a people can be complete
Into chain tensioner operation, operating efficiency is improved, the energy is saved, it is adaptable to various different areas of activity.
Preferably, the stopping means include ratchet, the ratchet by jointed shaft be articulated with two baffle plates it
Between, the ratchet is engaged with the tooth bar.
The ratchet is stuck on tooth bar under gravity to sinking, prevents that tooth bar from retracting.
Preferably, the stopping means also includes limit spring, the first end of the limit spring is fixed on the spine
On the jointed shaft of pawl and the panel hinge, the second end is fixed on the baffle plate below the first end.The present invention is by spacing
The pulling force of spring makes the second ratchet be held against the state of tooth bar, further prevents that tooth bar from retracting.
Preferably, the sliding part is a hollow pipe, the hollow pipe is actively socketed on the tooth bar, two institutes
State and offered at the top of the parallel both sides for being fixed on the hollow pipe of baffle plate, the hollow pipe for the opening of passing through of pawling
Mouthful, described pawl is engaged by opening with the tooth bar, and the bottom of the fixing pipe is fixed with the first eave tile.
The sliding part is set to a hollow pipe, and tooth bar is pierced into hollow pipe, prevents that tooth bar from swinging.
Preferably, the rocking bar includes being detachably fixed the rocker body of connection and seat of pawling, the rocker body position
In the top of the seat of pawling, the seat of pawling is articulated between two fixed plates by jointed shaft, and described pawl is hinged
In the bottom of the seat of pawling.
Rocking bar is using the two parts being detachably connected, and easy disassembly is carried, and can be needed to select different length according to chain
The rocking bar of degree, it is easy to use.
Preferably, one end of remote second eave tile of the tooth bar is fixed with for limiting the tooth bar from described
The locating part that fixing pipe is skidded off.
The present invention also provides a kind chain mounting and adjusting and tenses method, and methods described comprises the following steps：
S01：By tooth bar（1）It is positioned over sliding part（2）On, it would be desirable to the two ends of the chain of adjustment are individually fixed in the first eave tile
（6）With the second eave tile（7）On；
S02：Rock from side to side rocking bar（4）, make to pawl（5）Band carry-over bar（1）Motion, so that the second eave tile（7）To the first eave tile
（6）It is close, chain is tensed.
Technical scheme provided in an embodiment of the present invention can include following beneficial effect：
The present invention provides a kind of chain mounting and adjusting take-up device and its tenses method, and described device includes tooth bar and slip is set
Put and be hinged with rocking bar on the sliding part in tooth bar one end, the sliding part；The bottom of the rocking bar, which is hinged with, pawls, pawl with it is upper
Tooth bar is stated to be engaged；The bottom of the sliding part is fixed with the first eave tile, and the other end of the tooth bar is fixed with and described first
The second corresponding eave tile of eave tile；The rocking bar is shaken, promotion of the pawling tooth bar motion makes the second eave tile direction
The first eave tile motion；Described device also includes being used to limit the stopping means that the tooth bar moves back tooth.In the present invention, the tooth
Bar is positioned on sliding part, it is necessary to the two ends difference for the chain installed or adjusted between the tooth being caught on tooth bar of pawling
It is fixed on first eave tile and the second described eave tile, when shaking the rocking bar, it is movable with the shake of rocking bar to pawl,
Tooth bar is moved to the left or to the right on sliding part, and prevent that tooth bar from retracting by stopping means, so that the second eave tile is to
The direction motion of one eave tile, chain tensioner is operated.The present invention uses ratchet step by step structure, can be by chain automatic tension simultaneously
Being maintained at needs position, and people behaviour, which does, can complete the tensioner operation of chain, improve operating efficiency；And the device that the present invention is provided
It is purely manual i.e. operable, without external power supplys such as power supply or sources of the gas, it is adapted to various different areas of activity, saves the energy.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or technical scheme of the prior art
The accompanying drawing to be used needed for having technology description is briefly described, it is clear that, to those skilled in the art, not
On the premise of paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of chain mounting and adjusting take-up device provided in an embodiment of the present invention.
Fig. 2 is a kind of structural representation of the fixing pipe of chain mounting and adjusting take-up device provided in an embodiment of the present invention
Figure.
Fig. 3 is a kind of side structure schematic diagram of chain mounting and adjusting take-up device provided in an embodiment of the present invention.
Fig. 4 is a kind of schematic diagram of the use state of chain mounting and adjusting take-up device provided in an embodiment of the present invention.
Shown in figure：Tooth bar 1, sliding part 2, opening 21, baffle plate 3, rocking bar 4, rocker body 41, seat 42, first of pawling are hooked
First 6, second eave tile 7, ratchet 8, limit spring 9, locating part 10, chain 10.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, art technology
The every other embodiment that personnel are obtained under the premise of creative work is not made, should all belong to the protection model of the present invention
Enclose.
Referring to Fig. 1, shown is a kind of structural representation of chain mounting and adjusting take-up device provided in an embodiment of the present invention
Figure.
As shown in Figure 1, the chain mounting and adjusting take-up device includes tooth bar 1 and positioned at the lower section of tooth bar 1, for placing
The sliding part 2 of the tooth bar 1, the both sides of the sliding part 2 are parallel to be fixed between baffle plate 3, two baffle plates 3 by being hinged
Axle is hinged with rocking bar 4, and the bottom of the rocking bar 4, which is hinged with, pawls 5, and described pawl 5 is located at the baffle plate 3 and the rocking bar 4
The lower section of hinged place, described pawl 5 is engaged with the tooth bar 1, and the bottom of the sliding block 2 is fixed with the first eave tile 6, the tooth
The bottom of bar 1 is fixed with the second eave tile 7, and described device also includes being used to limit the stopping means that the tooth bar moves back tooth.
The sliding part 2 can be a block, either plate or other forms, and the both sides of described piece or plate are solid respectively
Surely baffle plate 3 is connected, two baffle plates 3 be arranged in parallel, and size, the height and position of two baffle plates 3 etc. are identical, also may not be used certainly
Together, the rocking bar 4 is hinged between two baffle plates 3, is hinged and is directly clamped among with pawling for the bottom of rocking bar 4 on tooth bar 1, by shaking
Rocking bar 4 can realize the motion of tooth bar 1.
Specifically, in the present embodiment, as depicted in figs. 1 and 2, the sliding part 2 is set to a hollow pipe, described hollow
Pipe is actively socketed on the tooth bar 1, the parallel both sides for being fixed on the hollow pipe of two baffle plates 3, the hollow pipe
Top is offered for 5 openings 21 passed through of pawling, and described pawl 5 is engaged by opening 21 with the tooth bar 1, described
The bottom of hollow pipe is fixed with the first eave tile 6.In the present embodiment, the opening 21 that the top of the hollow pipe is set is changeable,
So that described pawl can be made 5 to stretch into and be defined in the fixing pipe 2 by the opening 21.
In the present embodiment, the bottom of the rocking bar 4 is provided with described in the opening of an inverted " u "-shaped to pawl and 5 cut with scissors by jointed shaft
It is connected at the inverted " u "-shaped opening of the rocker body, and two side plates of the opening of the inverted " u "-shaped are inverted trapezoidal structure,
Make rocking bar can swing range it is bigger；In the present embodiment, the opening of the inverted " u "-shaped of pawl 5 and the bottom of the rocking bar 4 passes through
One pin is hinged, and is provided with a groove at the top of the pin, and 5 top of pawling is offered in screwed hole, screwed hole
It is fixed with for by the bolt of the pin and 5 fixations of pawling, the bottom of the bolt to be sticked into the groove at the top of the pin,
It 5 is an entirety with the pin connection to make described pawl, and prevents that the pin from coming off from the rocking bar 4, and increase uses safety
Property.
Further, in the present embodiment, the stopping means includes ratchet 8 and limit spring 9, and the ratchet 8 is by being hinged
Axle is articulated between two baffle plates 3, and the ratchet 8 is engaged with the tooth bar, and the first end of the limit spring 9 is consolidated
Due on the jointed shaft that the ratchet 8 and the baffle plate 3 are hinged, the second end is fixed on the baffle plate 3 below the first end.
In the present embodiment, the ratchet 8 is articulated between two baffle plates 3 by an eccentric shaft, the eccentric shaft
Top surface on be provided with a groove, the top of the ratchet 8, which is offered, to be fixed with screwed hole, screwed hole for by the bias
The bolt that axle is fixed with the ratchet 8, the bottom of the bolt is sticked into the groove at the top of the eccentric shaft, makes the ratchet 8
It is an entirety with the pin connection, and prevents that the eccentric shaft from coming off from the baffle plate 3 and the ratchet 8, increase is used
Security.The first end of the limit spring 9 is fixed on the eccentric shaft, as shown in figure 1, the first of the limit spring 9
The position of on the upper side and deviation ratchet 8 ratchet of the end on the eccentric shaft, the second end of the limit spring 9 is located at first end
Lower section, limit spring 9 is hauled the ratchet 8 and be close to the tooth bar 1, it is to avoid rocking bar 1 shake process middle rack 1 to
The situation of retrogressing.
In the present embodiment, by taking Fig. 1 as an example, when rocking bar 4 is put to the right, pawling in the presence of 5, tooth bar 1 is slided to the left, so
Rocking bar 4 is swung to the left afterwards, now, tooth bar 1 has the trend slided to the right, but due to ratchet 8 limit spring 9 effect it is tight
Patch tooth bar 1 is simultaneously sticked between the two neighboring tooth of tooth bar 1, and limitation tooth bar 1 is slided to the right, when rocking bar 4 is swung to the right again, tooth bar
1 continues to slide to the left, and by that analogy, rocking bar 4 is constantly swung, and tooth bar 1 is slided to the left always.
In further embodiment of the present invention, the stopping means can also be on a caging bolt, the tooth bar 1
It is even to be threaded hole, structure as shown in Figure 1, when rocking bar 4 is put to the right, tooth bar 1 is slided to the left, after the completion of slip, will be limited
Position bolt, which is screwed into, makes the free end of caging bolt can not be by fixing pipe 2, then by rocking bar 4 to the left in the screwed hole on tooth bar 1
Swing, so as to be carried out to tooth bar 1 spacing, prevent that tooth bar 1 from sliding to the right.In addition, stopping means can also be other forms,
Do not enumerate, be defined by being prevented from the generation of tooth bar 1 rollback, the present invention does not enter to the concrete form of stopping means herein
Row is specific to be limited.
Further, in the present embodiment, the rocking bar 4 includes being detachably fixed the rocker body 41 of connection and seat of pawling
42, the rocker body 41 is located at the top of the seat 42 of pawling, and the seat 42 of pawling is articulated with described in two by jointed shaft
Between baffle plate 3,5 bottoms for being articulated with the seat 42 of pawling of pawling.
In the present embodiment, the opening of described inverted " u "-shaped is located at the bottom of the seat 42 of pawling, and the rocker body 41 is
One hollow body, the rocker body 41 and the screw thread of seat 42 of pawling are detachably fixed, and its concrete form is：The rocker body 1
Bottom welding be fixed with a bolt, the top for pawling seat 42 is provided with the screwed hole being engaged with above-mentioned bolt, passed through
The cooperation of bolt and screwed hole makes rocker body 41 and seat 42 of pawling is detachably connected, also, is set in the upper end of seat 42 of pawling
Fixing bolt in the screwed hole of one and above-mentioned screwed hole vertical connection, this screwed hole is equipped with, this bolt withstands on rocking bar
On body 41 on fixed bolt, it is to avoid its running, also other modes are detachably connected certainly.It is described to shake in the present embodiment
Bar body 41 and seat 42 of pawling are detachably connected easy disassembly and carrying, and the weight of rocker body 41 of hollow body is smaller, more square
Portable belt；Also, the mode being detachably connected makes rocker body 41 interchangeable, can be according to different chains and tensioner degree the need for
The rocker body 41 of different length is changed, to change the length of rocking bar 4, different demands are reached, it is easy to use.
Specifically, in the present embodiment, one end of remote second eave tile 7 of the tooth bar 1 is fixed with for limiting institute
State the locating part 10 that tooth bar 1 is skidded off from the fixing pipe 2.Locating part 10 in the present embodiment is set to a bolt, the tooth
Hole is threaded on bar 1, above-mentioned bolt is screwed into the screwed hole on the tooth bar 1, prevents the outside of bolt from by fixing pipe
2, so that the end for limiting tooth bar 1 is skidded off out of fixing pipe 2, convenient use.
The chain mounting and adjusting take-up device that the present embodiment is provided is in use, as shown in figure 4, the two ends difference of chain 10
It is fixed on the first eave tile 6 and the second eave tile 7, described pawl 5 is stuck on tooth bar 1 through the opening 21 in the fixing pipe 2
Between two neighboring tooth, ratchet 8 is sticked under the pulling force effect by limit spring 9 between the two neighboring tooth on tooth bar 1, is held
Rocker body 41 shakes to the right, pawls 5 to left movement, promotes tooth bar 1 to slide to the left, now, tooth of the ratchet 8 on tooth bar 1
By jack-up under effect, tooth bar 1 is smoothly slided to the left, so that the second eave tile 7 is close to the first eave tile 6, and then make chain 10
Two ends it is close, centre tense；Then hold rocker body 41 to swing to the left, pawling 5 moves right, and has tooth bar 1 and transports to the right
Dynamic trend, but due to the effect of limit spring 9, ratchet 8 is withstood in the groove on tooth bar 1 between two neighboring tooth, rocker body
41 when swinging to the left, and the high order end of ratchet 8 withstands the face of the tooth of its left end, tooth bar 1 is not moved right, and so on, makes
Tooth bar 1 is smoothly slided to the left, and the second eave tile 7 is constantly close to the first eave tile 6, calmly by the tensioner of chain 10.
When needing to retract tooth bar 1, ratchet 8 can be broken into 90 ° and then release upwards manually, now, ratchet 8 is limited again
Spring 9 is tight in released position, facilitates tooth bar to retract.
The present embodiment uses ratchet step by step structure, and high working efficiency, band auto-lock function by chain automatic tension and can be kept
Position is being needed, people behaviour, which does, can complete the tensioner operation of chain；Purely manual operation, without external impetus such as power supply or sources of the gas
Source, it is adaptable to various different areas of activity；Compact conformation is simple, dismounts easy to maintenance.It is sturdy and durable, it is safe and convenient to use；Rocking bar sheet
Body and seat of pawling are easy to dismounting to carry for split-type structural, and rocking bar is replaced by different length, to adapt to different tensioners
Intensity.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized, will not be repeated here using prior art；Above example and accompanying drawing are merely to illustrate technical scheme not
It is limitation of the present invention, preferred embodiment the present invention is described in detail for reference, the ordinary skill people of this area
Member it should be appreciated that those skilled in the art the present invention essential scope in made change, remodeling, add
Or replace without departure from spirit of the invention, it should also belong to the claims of the present invention.
Claims (8)
1. a kind of chain mounting and adjusting take-up device, it is characterised in that including tooth bar（1）Be slidably arranged in tooth bar one end
Sliding part（2）, the sliding part（2）On be hinged with rocking bar（4）；The rocking bar（4）Bottom be hinged with and pawl（5）, pawl（5）
With above-mentioned tooth bar（1）It is engaged；The sliding part（2）Bottom be fixed with the first eave tile（6）, the tooth bar（1）The other end
It is fixed with and first eave tile（6）The second corresponding eave tile（7）；Shake the rocking bar（4）, it is described to pawl（5）Promote institute
State tooth bar（1）Motion, makes second eave tile（7）Towards first eave tile（6）Motion；Described device also includes being used to limit
The tooth bar moves back the stopping means of tooth.
2. chain mounting and adjusting take-up device according to claim 1, it is characterised in that described device also includes baffle plate
（3）, the baffle plate（3）It is parallel to be fixed on the sliding part（2）Both sides, the rocking bar（4）Two are hinged on by jointed shaft
The baffle plate（3）Between, it is described to pawl（5）Positioned at the rocking bar（4）With the baffle plate（3）Hinged place lower section.
3. chain mounting and adjusting take-up device according to claim 2, it is characterised in that the stopping means includes spine
Pawl（8）, the ratchet（8）Two baffle plates are articulated with by jointed shaft（3）Between, the ratchet（8）With the tooth bar phase
Coordinate.
4. chain mounting and adjusting take-up device according to claim 3, it is characterised in that the stopping means also includes
Limit spring（9）, the limit spring（9）First end be fixed on the ratchet（8）With the baffle plate（3）The jointed shaft being hinged
On, the baffle plate that the second end is fixed on below the first end（3）On.
5. the chain mounting and adjusting take-up device according to claim any one of 1-4, it is characterised in that the sliding part
（2）For a hollow pipe, the hollow pipe is actively socketed on the tooth bar（1）On, two baffle plates（3）It is parallel to be fixed on institute
State to offer at the top of the both sides of hollow pipe, the hollow pipe and pawled for described（5）The opening passed through（21）, it is described to pawl
（5）Pass through opening（21）With the tooth bar（1）It is engaged, the fixing pipe（2）Bottom be fixed with the first eave tile（6）.
6. chain mounting and adjusting take-up device according to claim 5, it is characterised in that the rocking bar（4）Including can
Dismantle the rocker body being fixedly connected（41）With seat of pawling（42）, the rocker body（41）Positioned at the seat of pawling（42）It is upper
Side, the seat of pawling（42）Two baffle plates are articulated with by jointed shaft（3）Between, it is described to pawl（5）It is articulated with described push away
Pawl seat（42）Bottom.
7. chain mounting and adjusting take-up device according to claim 6, it is characterised in that the tooth bar（1）It is remote
Second eave tile（7）One end be fixed with for limiting the tooth bar（1）From the fixing pipe（2）The locating part skidded off
（10）.
8. a kind of chain mounting and adjusting tenses method, applied to the device described in claim 1, it is characterised in that methods described
Comprise the following steps：
S01：By tooth bar（1）It is positioned over sliding part（2）On, it would be desirable to the two ends of the chain of adjustment are individually fixed in the first eave tile
（6）With the second eave tile（7）On；
S02：Rock from side to side rocking bar（4）, make to pawl（5）Band carry-over bar（1）Motion, so that the second eave tile（7）To the first eave tile
（6）It is close, chain is tensed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346990.8A CN106956237B (en) | 2017-05-17 | 2017-05-17 | Tensioning device for chain installation and adjustment and tensioning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346990.8A CN106956237B (en) | 2017-05-17 | 2017-05-17 | Tensioning device for chain installation and adjustment and tensioning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106956237A true CN106956237A (en) | 2017-07-18 |
| CN106956237B CN106956237B (en) | 2020-06-02 |
Family
ID=59482588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710346990.8A Active CN106956237B (en) | 2017-05-17 | 2017-05-17 | Tensioning device for chain installation and adjustment and tensioning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106956237B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373913A (en) * | 2020-12-18 | 2021-02-19 | 高凤枝 | Canned fruit transportation protector |
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|---|---|---|---|---|
| DE2914887A1 (en) * | 1979-04-12 | 1980-10-23 | Sicherheits Und Bankeinrichtun | Tensioner for link chains - uses chain tightener and guide, defining chain passage with projecting fingers |
| US5056305A (en) * | 1991-03-19 | 1991-10-15 | Cole Francisco J | Tool for separating chain links |
| CN2732388Y (en) * | 2004-08-06 | 2005-10-12 | 雷宽成 | Chain tightener |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373913A (en) * | 2020-12-18 | 2021-02-19 | 高凤枝 | Canned fruit transportation protector |
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| Publication number | Publication date |
|---|---|
| CN106956237B (en) | 2020-06-02 |
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