CN110797803B - Wire tightening clamp - Google Patents
Wire tightening clamp Download PDFInfo
- Publication number
- CN110797803B CN110797803B CN201911224910.7A CN201911224910A CN110797803B CN 110797803 B CN110797803 B CN 110797803B CN 201911224910 A CN201911224910 A CN 201911224910A CN 110797803 B CN110797803 B CN 110797803B
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- sliding block
- base
- slider
- worm
- pawl
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- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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- Clamps And Clips (AREA)
Abstract
The invention relates to a wire tightening clamp which comprises a base, a trapezoidal mounting groove arranged in the middle of the base, a left sliding block, a right sliding block and tension springs, wherein the left sliding block and the right sliding block are arranged on the left side wall and the right side wall of the mounting groove in a sliding mode and are in the same pair in structure, the tension springs are respectively arranged between the left sliding block, the right sliding block and the top of the base, and grooves for leading wires to pass through are formed in the side walls, corresponding to the left sliding block and the right sliding block, of the left sliding block; according to the invention, the left and right sliding blocks slide in the trapezoidal mounting grooves, and then the tension spring is utilized to enable the left and right sliding blocks to always have upward movement force, when the wire penetrates through the grooves of the left and right sliding blocks from top to bottom, the left and right sliding blocks can hold the wire tightly under the action of the tension spring, so that the function of preventing the wire from retracting is realized, and the holding realizing mode has a simple structure, can realize automatic holding, and is very convenient to use.
Description
Technical Field
The invention relates to the aspect of electric power fittings, in particular to a wire tightener.
Background
When electric power system circuit is laid construction or is tourd, whether the circuit is taut direct relation to whole electric power line's normal use, if electric power line is too loose, can take place the swing because of the sag is too big, the short circuit takes place for collision each other, if electric power line is too tight, the easy emergence broken string or with the pole stretch-break, the effect of taut wire is played to the clamp, it can keep electric power line under suitable tightness, and present clamp uses comparatively troublesome.
Disclosure of Invention
The invention aims to provide a wire tightening clamp which is simple to use.
The technical scheme adopted by the invention is as follows: the utility model provides a wire-tightening pliers, its includes the base, set up at the base middle part and be trapezoidal mounting groove, slide to set up on the left and right sides wall of mounting groove and the same right left slider and right slider of structure and set up the extension spring between left and right slider and base top respectively be provided with the recess that is used for supplying the wire to pass through on the lateral wall that left side slider and right slider correspond.
Furthermore, the left side wall and the right side wall of the mounting groove are both provided with sliding grooves, and the left sliding block and the right sliding block are provided with clamping blocks matched with the sliding grooves.
Furthermore, rubber pads are arranged on the opposite side walls of the left sliding block and the right sliding block, and the grooves are formed in the rubber pads.
Furthermore, a transverse anti-skid bulge is arranged on the rubber pad.
Furthermore, a left limiting device used for limiting the movement of the left sliding block is arranged between the left sliding block and the base, a right limiting device used for limiting the movement of the right sliding block is arranged between the right sliding block and the base, and the right limiting device and the left limiting device are identical in structure.
Furthermore, the left limiting device comprises a rack arranged on the side surface of the left sliding block corresponding to the side wall of the mounting groove, a gear which is rotatably arranged in the base and is meshed with the rack, a ratchet wheel which coaxially rotates with the gear, and a pawl which is rotatably arranged on the base and is matched with the ratchet wheel.
Further, the ratchet wheel comprises a wheel body and rectangular lugs arranged on the outer side surface of the wheel body at intervals, and the pawls are matched with the rectangular lugs.
Further, the pawl is deflected by the drive means.
Furthermore, the driving device is a worm and gear mechanism, the pawl is fixed on a worm gear to realize coaxial rotation with the worm gear, and the worm gear is meshed with the worm;
the spiral teeth on the worm are divided into two sections, the spiral directions are opposite, and the two sections are respectively meshed with worm wheels of the corresponding left limiting device and the right limiting device.
Furthermore, a rotating handle is arranged on the worm.
The invention has the positive effects that:
1. according to the invention, the left and right sliding blocks slide in the trapezoidal mounting grooves, and then the tension spring is utilized to enable the left and right sliding blocks to always have upward movement force, when the wire penetrates through the grooves of the left and right sliding blocks from top to bottom, the left and right sliding blocks can hold the wire tightly under the action of the tension spring, so that the function of preventing the wire from retracting is realized, and the holding realizing mode has a simple structure, can realize automatic holding, and is very convenient to use.
2. The recess sets up on the rubber mat to set up the non-slip raised in the recess, can effectively improve the frictional force to the wire, improve the effect of holding tightly.
Meanwhile, the transverse anti-skid protrusions are arranged in the grooves, the contact area of the anti-skid protrusions and the wires is large, the effect of increasing friction force can be achieved, the pressure intensity of the holding force on the wires can be reduced, and the wires are effectively prevented from being crushed.
3. The left limiting device and the right limiting device adopt improved ratchet mechanisms, the ratchet wheels are provided with rectangular bulges on the outer side surfaces of the wheel bodies, and the ratchet wheels are matched with pawls which can rotate under the action of the worm and gear mechanisms, so that the limiting work in two directions can be realized.
When the left and right sliding blocks are prevented from loosening and cannot be held tightly, the pawl deflects to the outer side direction of the ratchet wheel, and the pawl can prevent the ratchet wheel of the left limiting device from rotating clockwise and the ratchet wheel of the right limiting device from rotating anticlockwise, so that the rack can be prevented from moving downwards, and locking is achieved.
When the reverse acting force of the lead is larger, the left and right sliding blocks are prevented from continuously moving upwards to generate larger acting force on the lead to damage the lead, the direction of the pawl can be controlled, and the rack is prevented from moving upwards.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the left slider structure of the present invention;
FIG. 3 is a schematic view of the rubber pad of the present invention;
FIG. 4 is a schematic view of a ratchet structure according to the present invention;
FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic structural diagram of a driving device according to the present invention.
In the attached drawing, 1-base, 2-mounting groove, 3-left slide block, 4-right slide block, 5-tension spring, 6-sliding groove, 7-clamping block, 8-rubber pad, 9-anti-skid projection, 10-rack, 11-first rotating shaft, 12-gear, 13-wheel body, 14-rectangular projection, 15-pawl, 16-worm wheel, 17-worm, 18-second rotating shaft and 20-rotating handle.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
As shown in fig. 1-3, the invention includes a base 1, a trapezoidal mounting groove 2 disposed in the middle of the base 1, a left slider 3 and a right slider 4 which are slidably disposed on the left and right side walls of the mounting groove 2 and have the same structure, and a tension spring 5 respectively disposed between the left and right sliders 3, 4 and the top of the base 1, wherein the mounting groove 2 is disposed on the base 1 such that the base 1 has a side wall on each of the left and right sides of the mounting groove 2, the left and right sliders are disposed on the corresponding side walls, and a groove for a wire to pass through is disposed on the side wall of the left slider 3 corresponding to the side wall of the right slider 4.
Under extension spring 5's effect, control the slider and be in the trend of upward movement all the time, when the wire is embraced tightly to needs, will control the slider and stir backward, make the wire from last to penetrating about to in the recess of spout, after loosening about slider, slider upward movement was controlled in extension spring 5 pulling, embraced tightly the wire. Because the wire can have an ascending effect all the time down, can stimulate about the slider continuation upward movement, and be trapezoidal mounting groove just can make about the distance between the slider diminish gradually, also can be bigger and bigger to the power of holding tightly of wire, guaranteed to hold the effect of tightly, it is also very convenient to use simultaneously.
All be provided with spout 6 on the lateral wall about mounting groove 2, be provided with on left slider 3 and right slider 4 and be used for with spout 6 matched with fixture block 7, control the slider slip and set up in corresponding spout 6, also can be equipped with the pulley in order to reduce frictional resistance simultaneously.
The lateral wall of the left sliding block 3 opposite to the lateral wall of the right sliding block 4 is provided with a rubber pad 8, the groove is arranged on the rubber pad 8, and the rubber pad 8 is provided with a transverse anti-skid bulge 9. The recess sets up on the rubber mat to set up the non-slip raised in the recess, can effectively improve the frictional force to the wire, improve the effect of holding tightly. Meanwhile, the transverse anti-skid protrusions are arranged in the grooves, the contact area of the anti-skid protrusions and the wires is large, the effect of increasing friction force can be achieved, the pressure intensity of the holding force on the wires can be reduced, and the wires are effectively prevented from being crushed.
As shown in fig. 3-6, a left limiting device for limiting the movement of the left slider 3 is arranged between the left slider 3 and the base 1, and a right limiting device for limiting the movement of the right slider 4 is arranged between the right slider 4 and the base 1, and the right limiting device and the left limiting device have the same structure and are symmetrically arranged.
The left limiting device comprises a rack 10 arranged on the side surface of the left sliding block 3 corresponding to the side wall of the mounting groove 2, a gear 12 which is rotatably arranged in the base 1 and is meshed with the rack 10, a ratchet wheel which coaxially rotates with the gear, and a pawl 15 which is rotatably arranged on the base 1 and is matched with the ratchet wheel. The gear 12 and the ratchet wheel are both fixed on the first rotating shaft 11, the pawl 15 is rotatably arranged inside the base 1 through the second rotating shaft 18, and the gear 12 is locked through the ratchet wheel mechanism so as to limit the gear 12.
The ratchet wheel comprises a wheel body 13 and rectangular lugs 14 arranged on the outer side surface of the wheel body 13 at intervals, the pawls 15 are matched with the rectangular lugs 15, and the pawls 15 deflect under the action of a driving device. The second shaft 18 is located above the wheel body 13 and the pawl 15 is biased in different directions to restrict the rotation of the ratchet in the clockwise and counterclockwise directions.
Taking the left limiting device as an example, when the pawl 15 is biased to the left side of the ratchet wheel, it cooperates with the rectangular projection 14 on the wheel body 13 to prevent the ratchet wheel from rotating clockwise, and thus prevent the rack from moving downward. Correspondingly, when the pawl 15 is biased to the right of the ratchet, the ratchet is prevented from rotating in the counterclockwise direction, and the rack is prevented from moving upward.
The structure of the right limiting device is completely the same as and symmetrical to that of the left limiting device.
The driving device is a worm and gear mechanism, the pawl 15 is fixed on the worm wheel 16 to realize coaxial rotation with the worm wheel 16, and the worm wheel 16 is meshed with the worm 17; a rotary knob 20 is provided on the worm 17. The spiral teeth on the worm 17 are divided into two sections, the spiral directions are opposite, and the two sections are respectively meshed with worm wheels of the corresponding left limiting device and the right limiting device. When the worm 17 rotates, the pawls 15 of the left and right limiting devices can be simultaneously positioned on the outer side and the inner side of the ratchet wheel, and the left and right sliding blocks can be limited.
When the left and right sliding blocks are prevented from loosening and cannot be held tightly, the pawl deflects to the outer side direction of the ratchet wheel, and the pawl can prevent the ratchet wheel of the left limiting device from rotating clockwise and the ratchet wheel of the right limiting device from rotating anticlockwise, so that the rack can be prevented from moving downwards, and locking is achieved.
When the reverse acting force of the lead is larger, the left and right sliding blocks are prevented from continuously moving upwards to generate larger acting force on the lead to damage the lead, the direction of the pawl can be controlled, and the rack is prevented from moving upwards.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A wire tightening clamp is characterized by comprising a base (1), a trapezoidal mounting groove (2) arranged in the middle of the base (1), a left slider (3) and a right slider (4) which are arranged on the left side wall and the right side wall of the mounting groove (2) in a sliding mode and are same in structure and in pair, and tension springs (5) respectively arranged between the left slider (3) and the right slider (4) and the top of the base (1), wherein grooves for leading wires to pass through are formed in the side walls, corresponding to the left slider (3) and the right slider (4), of the left slider;
a left limiting device used for limiting the left sliding block (3) to move is arranged between the left sliding block (3) and the base (1), a right limiting device used for limiting the right sliding block (4) to move is arranged between the right sliding block (4) and the base (1), and the right limiting device and the left limiting device are identical in structure;
the left limiting device comprises a rack (10) arranged on the side face of the left sliding block (3) corresponding to the side wall of the mounting groove (2), a gear (12) which is rotatably arranged in the base (1) and is meshed with the rack (10), a ratchet wheel which coaxially rotates with the gear, and a pawl (15) which is rotatably arranged on the base (1) and is matched with the ratchet wheel, wherein the pawl (15) is rotatably arranged in the base (1) through a second rotating shaft (18);
the ratchet comprises a wheel body (13) and rectangular lugs (14) arranged on the outer side surface of the wheel body (13) at intervals, the pawls (15) are matched with the rectangular lugs (15), and the pawls (15) deflect under the action of a driving device; the second rotating shaft (18) is positioned above the wheel body (13), and the pawl (15) deflects to different directions to realize the rotation limitation of the ratchet wheel in the clockwise direction and the anticlockwise direction;
the driving device is a worm and gear mechanism, the pawl (15) is fixed on a worm wheel (16) to realize coaxial rotation with the worm wheel (16), and the worm wheel (16) is meshed with the worm (17);
the spiral teeth on the worm (17) are divided into two sections, the spiral directions are opposite, and the two sections are respectively meshed with worm wheels of the corresponding left limiting device and the right limiting device;
when the pawl (15) is biased to the left side of the ratchet wheel, the pawl is matched with a rectangular lug (14) on the wheel body (13) to prevent the ratchet wheel from rotating clockwise and prevent the rack from moving downwards; correspondingly, when the pawl (15) is biased to the right of the ratchet wheel, the ratchet wheel is prevented from rotating anticlockwise, and the rack is also prevented from moving upwards.
2. The wire tensioner according to claim 1, wherein sliding grooves (6) are formed in the left side wall and the right side wall of the mounting groove (2), and clamping blocks (7) matched with the sliding grooves (6) are arranged on the left sliding block (3) and the right sliding block (4).
3. The wire tensioner as claimed in claim 1 or 2, characterized in that rubber pads (8) are arranged on opposite side walls of the left slider (3) and the right slider (4), and the grooves are arranged on the rubber pads (8).
4. A wire tensioner as claimed in claim 3, characterized in that lateral anti-slip protrusions (9) are provided on said rubber pad (8).
5. A wire tensioner as claimed in claim 1, characterized in that a rotary knob (20) is provided on said worm (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224910.7A CN110797803B (en) | 2019-12-04 | 2019-12-04 | Wire tightening clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224910.7A CN110797803B (en) | 2019-12-04 | 2019-12-04 | Wire tightening clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110797803A CN110797803A (en) | 2020-02-14 |
| CN110797803B true CN110797803B (en) | 2021-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911224910.7A Active CN110797803B (en) | 2019-12-04 | 2019-12-04 | Wire tightening clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110797803B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206505Y (en) * | 1994-10-31 | 1995-08-30 | 包钢供电厂 | Alligatoring wire take-up device |
| WO2000001958A1 (en) * | 1998-07-04 | 2000-01-13 | Gripple Limited | Devices for clamping wires etc. |
| EP1538083A2 (en) * | 2003-12-02 | 2005-06-08 | Panduit Corporation | Installation tool comprising a ratchet wheel |
| GB2433048A (en) * | 2005-12-06 | 2007-06-13 | Carl Kammerling Internat Ltd | Hand tool with wedge-shaped recesses |
| CN201593585U (en) * | 2009-12-07 | 2010-09-29 | 徐州市工大三森科技有限公司 | Double-wedge semi-automatic rope clamping device |
| CN202059107U (en) * | 2011-03-31 | 2011-11-30 | 平顶山中博电力设备有限公司 | Lead draw vice |
| CN202888726U (en) * | 2012-10-22 | 2013-04-17 | 奚飞益 | Ratchet wheel tightener |
| CN104201630A (en) * | 2014-09-15 | 2014-12-10 | 国网浙江慈溪市供电公司 | Anti-falling backup protection device for leads |
| CN204118596U (en) * | 2014-09-23 | 2015-01-21 | 国家电网公司 | Portable type tightener |
| CN205159935U (en) * | 2015-12-10 | 2016-04-13 | 国网四川省电力公司巴中供电公司 | Quick accurate tensioner bullwheel acts as go -between |
| CN207994495U (en) * | 2017-12-18 | 2018-10-19 | 无锡优耐特能源科技有限公司 | A kind of tool for tightening cable connector |
| CN208753857U (en) * | 2018-07-25 | 2019-04-16 | 扬州明宇线缆有限公司 | It is a kind of convenient for fixed harness device |
| CN209278408U (en) * | 2018-12-25 | 2019-08-20 | 江苏中矿科汇矿业科技有限公司 | Wirerope positioning lifting rope regulator |
-
2019
- 2019-12-04 CN CN201911224910.7A patent/CN110797803B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206505Y (en) * | 1994-10-31 | 1995-08-30 | 包钢供电厂 | Alligatoring wire take-up device |
| WO2000001958A1 (en) * | 1998-07-04 | 2000-01-13 | Gripple Limited | Devices for clamping wires etc. |
| EP1538083A2 (en) * | 2003-12-02 | 2005-06-08 | Panduit Corporation | Installation tool comprising a ratchet wheel |
| GB2433048A (en) * | 2005-12-06 | 2007-06-13 | Carl Kammerling Internat Ltd | Hand tool with wedge-shaped recesses |
| CN201593585U (en) * | 2009-12-07 | 2010-09-29 | 徐州市工大三森科技有限公司 | Double-wedge semi-automatic rope clamping device |
| CN202059107U (en) * | 2011-03-31 | 2011-11-30 | 平顶山中博电力设备有限公司 | Lead draw vice |
| CN202888726U (en) * | 2012-10-22 | 2013-04-17 | 奚飞益 | Ratchet wheel tightener |
| CN104201630A (en) * | 2014-09-15 | 2014-12-10 | 国网浙江慈溪市供电公司 | Anti-falling backup protection device for leads |
| CN204118596U (en) * | 2014-09-23 | 2015-01-21 | 国家电网公司 | Portable type tightener |
| CN205159935U (en) * | 2015-12-10 | 2016-04-13 | 国网四川省电力公司巴中供电公司 | Quick accurate tensioner bullwheel acts as go -between |
| CN207994495U (en) * | 2017-12-18 | 2018-10-19 | 无锡优耐特能源科技有限公司 | A kind of tool for tightening cable connector |
| CN208753857U (en) * | 2018-07-25 | 2019-04-16 | 扬州明宇线缆有限公司 | It is a kind of convenient for fixed harness device |
| CN209278408U (en) * | 2018-12-25 | 2019-08-20 | 江苏中矿科汇矿业科技有限公司 | Wirerope positioning lifting rope regulator |
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| Publication number | Publication date |
|---|---|
| CN110797803A (en) | 2020-02-14 |
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