CN109473907A - Protection tool - Google Patents
Protection tool Download PDFInfo
- Publication number
- CN109473907A CN109473907A CN201811564962.4A CN201811564962A CN109473907A CN 109473907 A CN109473907 A CN 109473907A CN 201811564962 A CN201811564962 A CN 201811564962A CN 109473907 A CN109473907 A CN 109473907A
- Authority
- CN
- China
- Prior art keywords
- locking device
- protection tool
- hook assembly
- pylon
- hanging hook
- 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.)
- Pending
Links
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
Landscapes
- Emergency Lowering Means (AREA)
Abstract
The present invention provides a kind of protection tool, the protection tool is for protecting safety of the construction personnel when ascending a height, and protection tool includes: hanging hook assembly, and hanging hook assembly is used to carry out with pylon or electric pole detachably connected；Operating stick, operating stick are connect with hanging hook assembly, to be attached hanging hook assembly and pylon or electric pole by operating stick；One end of protective rope, protective rope is connect with hanging hook assembly；The other end of protective rope is connect with construction personnel, so that construction personnel is connect by protective rope with pylon or electric pole always during Deng Ta, prevents from falling.Protection tool of the invention solves construction personnel Deng Ta operation unsafe problems in the prior art.
Description
Technical field
The present invention relates to power equipment safety fields, in particular to a kind of protection tool.
Background technique
Maintenance of overhead transmission line and construction personnel use of seat belts, personnel protection rope is as anti-in operation on shaft tower
Height falls safeguard measure, but personnel during climbing shaft tower along main material from ground but without any safeguard protection, if stepping on
Occurs situations such as sole skids, hand is not held during tower, it is likely that personal height is caused to fall injures and deaths.
Although being equipped with fall arrest railroad on some shaft towers in recent years, tower personnel are stepped on using dedicated sliding block, along cunning
Rail steps on tower and plays the role of stepping on personnel protection during tower, but sliding rail design, installation are complicated, and general sliding rail is that special tower is dedicated, no
It can reuse, high expensive is unable to get wide popularization and application.
Summary of the invention
The main purpose of the present invention is to provide a kind of protection tools, are made with solving construction personnel Deng Ta in the prior art
Industry unsafe problems.
To achieve the goals above, the present invention provides a kind of protection tool, for protecting construction personnel when ascending a height
Safety, protection tool include: hanging hook assembly, and hanging hook assembly is used to carry out with pylon or electric pole detachably connected；Operating stick, behaviour
Make bar to connect with hanging hook assembly, to be attached hanging hook assembly and pylon or electric pole by operating stick；Protective rope, protective rope
One end is connect with hanging hook assembly；The other end of protective rope is connect with construction personnel, so that construction personnel is begun during Deng Ta
It is connect eventually by protective rope with pylon or electric pole, prevents from falling.
Further, hanging hook assembly includes: hook body, hooks body for connecting with pylon or electric pole；Locking device, locking device
On hooking body, locking device and hook body cooperate so that hanging hook assembly to be locked in pylon or electric pole for setting.
Further, locking device has locked position and open position, protection tool further include: driving portion, driving portion
It is drivingly connected with locking device, to drive locking device to switch between locked position and open position；Wherein, work as locking
When device is located at locked position, hooks body and locking device cooperates to be set on pylon or electric pole；It is locked when driving portion drives
When tight device is moved to open position, opening is formed between Gou Tiyu locking device, locking device passes through opening and pylon or electricity
Bar separation.
Further, locking device is rotatably coupled with body is hooked, to be moved between locked position and open position
Dynamic switching.
Further, driving portion includes: spring, and spring setting is in locking device and hooks between body, to push locking device
It is moved to locked position, to form closed loop in conjunction with hook body.
Further, driving portion further include: drawstring, drawstring are connect with locking device, to drive locking device by locking position
It sets and is moved to open position, be attached to hook body with pylon or electric pole.
Further, operating stick uses telescopic rod.
Further, operating stick uses insulating materials.
Further, protection tool further include: the one end of protective rope far from hanging hook assembly is arranged in safety belt, safety belt,
So that protective rope is attached by safety belt and construction personnel.
Further, protection tool further include: connection sleeve, connection sleeve are arranged on hanging hook assembly, and operating stick passes through
Connection sleeve is connect with hanging hook assembly.
The protection tool to apply the technical scheme of the present invention is mainly used in power construction personnel when ascend a height operation
Use, accidental falling when preventing construction personnel from ascending a height protects the safety of construction personnel, the protection tool include hanging hook assembly,
Operating stick and protective rope, hanging hook assembly are attached respectively with operating stick and protective rope, and construction personnel's hand-held bar will be linked up with
Component is lifted to construction personnel top to connect with the pylon of top, and one end of protective rope is bundled on the body of construction personnel and fixes,
The other end is connected and fixed with hanging hook assembly, and after hanging up properly hanging hook assembly, construction personnel carries out operation of ascending a height, and protective rope can effectively be prevented
Only construction personnel falls, and protects the safety of construction personnel.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the embodiment of protection tool according to the present invention.
Wherein, the above drawings include the following reference numerals:
10, hanging hook assembly；11, body is hooked；12, locking device；20, operating stick；30, protective rope；40, driving portion；41, bullet
Spring；42, drawstring；50, sleeve is connected.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of protection tools, for protecting safety of the construction personnel when ascending a height, referring to FIG. 1, anti-
Nurse's tool includes: hanging hook assembly 10, and hanging hook assembly 10 is used to carry out with pylon or electric pole detachably connected；Operating stick 20, behaviour
Make bar 20 to connect with hanging hook assembly 10, to be attached hanging hook assembly 10 with pylon or electric pole by operating stick 20；Protective rope
30, one end of protective rope 30 is connect with hanging hook assembly 10；The other end of protective rope 30 is connect with construction personnel, so that construction personnel
It is connect always by protective rope 30 with pylon or electric pole during Deng Ta, prevents from falling.
Protection tool of the invention is mainly used in power construction personnel use when ascend a height operation, to prevent from constructing
Accidental falling when personnel ascend a height protects the safety of construction personnel, which includes hanging hook assembly 10, operating stick 20 and protection
Rope 30, hanging hook assembly 10 is attached respectively with operating stick 20 and protective rope 30, and construction personnel's hand-held bar 20 is by hook groups
Part 10 is lifted to construction personnel top to connect with the pylon of top, and one end of protective rope 30 is bundled on the body of construction personnel solid
Fixed, the other end is connected and fixed with hanging hook assembly 10, and after hanging up properly hanging hook assembly 10, construction personnel carries out operation of ascending a height, protective rope 30
Construction personnel can be effectively prevent to fall, protect the safety of construction personnel.
Hanging hook assembly 10 includes: to hook body 11, hooks body 11 for connecting with pylon or electric pole；Locking device 12, locking device
On hooking body 11, locking device 12 and hook body 11 cooperate so that hanging hook assembly 10 to be locked in pylon or electric pole for 12 settings.
Hanging hook assembly 10 in the present embodiment includes hooking body 11 and locking device 12, and hook body 11 is hook shape, is being used
When, it hooks body and catches on the cross bar in pylon, locking device 12 will hook body 11 and fix or be locked on the cross bar of pylon, to prevent from hooking
Body ensure that and connect reliably between hanging hook assembly 10 and pylon because shaking or other reasons are detached from pylon.
Locking device 12 has locked position and open position, protection tool further include: driving portion 40, driving portion 40 and lock
Tight device 12 is drivingly connected, to drive locking device 12 to switch between locked position and open position；Wherein, work as locking
When device 12 is located at locked position, hooks body 11 and locking device 12 cooperates to be set on pylon or electric pole；Work as driving portion
It when 40 driving locking devices 12 are moved to open position, hook and forms opening between body 11 and locking device 12, locking device 12 is logical
Opening is crossed to separate with pylon or electric pole.
Protection tool in the present embodiment further includes driving portion 40, and driving portion 40 is connect with locking device 12, to control lock
Tight device 12 is moved between locked position and open position, when driving portion 40 drives locking device 12 to be moved to locking position
It when setting, hooks body 11 and locking device 12 forms a closed loop, the cross bar of pylon is locked in closed loop, to avoid hook body 11 de-
From pylon, when driving portion 40 drives locking device 12 to be moved to open position, locking device 12 and hook body 11 are formed and are open, and are applied
Worker person can will hook body by aperture slots and be attached or dismantle with pylon.
Preferably, the locking device 12 in the present embodiment is rotatably coupled with body 11 is hooked, the driving locking dress of driving portion 40
It sets 12 and carries out rotation switching between locked position and open position.
Driving portion 40 includes: spring 41, and the setting of spring 41 is in locking device 12 and hooks between body 11, to push locking device
12 are moved to locked position, to be combined to form closed loop with hook body 11.
As shown in Figure 1, the driving portion 40 in the present embodiment includes spring 41, spring 41 is pressure spring, always in compression shape
State, the preferred elastic slice of locking device 12, elastic slice one end and hook body 11 are hinged, and the inside for hooking body 11 is arranged in the other end, and spring 41 pushes away
The other side of spring plate to locked position with hook body contact to form closed loop, so that hanging hook assembly 10 be connect with pylon.
Driving portion 40 further include: drawstring 42, drawstring 42 are connect with locking device 12, to drive locking device 12 by locking position
It sets and is moved to open position, be attached to hook body 11 with pylon or electric pole.
As shown in Figure 1, driving portion 40 further includes that drawstring 42, drawstring 42 and locking device 12 one end hinged with body is hooked extend
Place's connection, construction personnel pull locking device 12 around the rotation of hook body 11 to drive locking to fill by pulling the other end of drawstring 42
12 are set to switch between locked position and open position.
Operating stick 20 uses telescopic rod.Operating stick 20 uses insulating materials.
Preferably, the operating stick 20 in the present embodiment uses telescopic rod, and length of telescopic bar can be configured as needed, grasps
Make the material selection insulating materials of bar 20, to prevent conduction.
Protection tool further include: the one end of protective rope 30 far from hanging hook assembly 10 is arranged in safety belt, safety belt, so that anti-
Shield rope 30 is attached by safety belt and construction personnel.
Protection tool in the present embodiment further includes safety belt, and safety belt is fixed on the body of construction personnel, protective rope
30 with safe band connection.
Protection tool further include: connection sleeve 50, connection sleeve 50 are arranged on hanging hook assembly 10, and operating stick 20 passes through company
Female connector cylinder 50 is connect with hanging hook assembly 10.
Protection tool is additionally provided with the connection sleeve specially connecting with operating stick 20, operating stick 20 and connector sleeve in the present embodiment
Cylinder 50 is removably attached, it is preferable that 20 end of operating stick is equipped with external screw thread, and connection sleeve 50 is equipped with internal screw thread, operation
Bar 20 uses threaded connection with sleeve 50 is connect.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Using the protection tool, power transmission lines overhauling, construction personnel are according to step operation, it is ensured that in stepping on tower overall process
Always there is reliable safeguard measure.It can be achieved to leave ground from personnel and reach setting, stepping on tower overall process has anti-high-altitude to fall
Safeguard measure is fallen, personnel's Deng Ta operation personal safety risk is eliminated, using steps are as follows:
1, good tool preparation is done before maintenance, construction personnel Deng Ta.First by protection tool hanging hook assembly lower end and insulation
Operating stick is reliably connected, and personal standby protective rope one end hook and eye is immediately ahead of personnel's all-position safety band or the annulus of dead astern
Place, other end hook and eye are smoothed out with the fingers at the metal ring of protection tool hanging hook assembly lower end and seal elastic slice along protection tool hanging hook assembly
Drawstring.
2, after ready, tower personnel station is stepped in the big side position of shaft tower, lifts insulating bar (3-6 meters of length) upwards,
Protection tool hanging hook assembly is hung on the secured tower material of shaft tower, it is ensured that hook sealing assembly mouth elastic slice rebound prevents hook from falling off.
3, after hanging up properly protection tool hook body, personnel start to step on tower, climb and suspend when hooking body horizontal position to specific purpose tool, are
Then good safety belt takes protection tool and hooks body, hold insulating bar and gradually stretch act upwards, then will hook body and hang over personnel place
Above position at 3-6 meters, then unlocks safety belt and continue to step on tower.And so on, until personnel reach job position；
4, on tower after operation, personnel start lower tower.When operating personnel along main material down toward specific purpose tool insulating bar
Suspend when lower end, fasten seat belts, then pulls specific purpose tool downwards and hook body sealing elastic slice tricing line, open sealing elastic slice,
Hook body is taken, insulating bar is held and transmits gradually downward, then hang over personnel's position for body is hooked, then unlock safety belt
Continue lower tower.And so on, until personnel safety is down toward ground.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of protection tool, for protecting safety of the construction personnel when ascending a height, which is characterized in that the protection tool packet
It includes:
Hanging hook assembly (10), the hanging hook assembly (10) are used to carry out with pylon or electric pole detachably connected；
Operating stick (20), the operating stick (20) connect with the hanging hook assembly (10), with by the operating stick (20) by institute
Hanging hook assembly (10) is stated to be attached with the pylon or electric pole；
One end of protective rope (30), the protective rope (30) is connect with the hanging hook assembly (10)；The protective rope (30) it is another
One end is connect with construction personnel, so that construction personnel passes through the protective rope (30) and the pylon always during Deng Ta
Or electric pole connection, it prevents from falling.
2. protection tool according to claim 1, which is characterized in that the hanging hook assembly (10) includes:
It hooks body (11), the hook body (11) with the pylon or electric pole for connecting；
Locking device (12), the locking device (12) are arranged on the hook body (11), the locking device (12) and described
Body (11) are hooked to cooperate so that the hanging hook assembly (10) to be locked on the pylon or electric pole.
3. protection tool according to claim 2, which is characterized in that the locking device (12) has locked position and beats
Open position, the protection tool further include:
Driving portion (40), the driving portion (40) and the locking device (12) are drivingly connected, to drive the locking device
(12) it is switched between the locked position and open position；
Wherein, when the locking device (12) is located at the locked position, the hook body (11) and the locking device (12)
It cooperates to be set on the pylon or electric pole；When the driving portion (40) drive the locking device (12) to be moved to institute
When stating open position, opening is formed between the hook body (11) and the locking device (12), the locking device (12) passes through
The opening is separated with the pylon or electric pole.
4. protection tool according to claim 3, which is characterized in that the locking device (12) and the hook body (11) can
It rotationally connects, to carry out mobile handoff between the locked position and open position.
5. protection tool according to claim 4, which is characterized in that the driving portion (40) includes:
Spring (41), the spring (41) are arranged between the locking device (12) and the hook body (11), described in pushing
Locking device (12) is moved to the locked position, forms closed loop to combine with the hook body (11).
6. protection tool according to claim 4, which is characterized in that the driving portion (40) further include:
Drawstring (42), the drawstring (42) connect with the locking device (12), to drive the locking device (12) by described
Locked position is moved to the open position, so that the hook body (11) is attached with the pylon or electric pole.
7. protection tool according to claim 1, which is characterized in that the operating stick (20) uses telescopic rod.
8. protection tool according to claim 1, which is characterized in that the operating stick (20) uses insulating materials.
9. protection tool according to claim 1, which is characterized in that the protection tool further include:
Safety belt, the safety belt setting is in the one end of the protective rope (30) far from the hanging hook assembly (10), so that described
Protective rope (30) is attached by the safety belt with construction personnel.
10. protection tool according to claim 1, which is characterized in that the protection tool further include:
It connects sleeve (50), the connection sleeve (50) is arranged on the hanging hook assembly (10), and the operating stick (20) passes through
The connection sleeve (50) connect with the hanging hook assembly (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564962.4A CN109473907A (en) | 2018-12-20 | 2018-12-20 | Protection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564962.4A CN109473907A (en) | 2018-12-20 | 2018-12-20 | Protection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109473907A true CN109473907A (en) | 2019-03-15 |
Family
ID=65676591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564962.4A Pending CN109473907A (en) | 2018-12-20 | 2018-12-20 | Protection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009851A (en) * | 2019-12-19 | 2020-04-14 | 国网浙江省电力有限公司温州供电公司 | Portable live working bypass equipment |
| CN111029228A (en) * | 2019-12-19 | 2020-04-17 | 国网浙江省电力有限公司温州供电公司 | Quick-hanging drop-out fuse |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201227477Y (en) * | 2008-06-06 | 2009-04-29 | 辛拴义 | Aloft work anti-falling safe protection device |
| CN101745191A (en) * | 2010-01-06 | 2010-06-23 | 浙江电力职业技术学院 | Movable type falling protection device for cement pole operation |
| CN202699904U (en) * | 2012-08-03 | 2013-01-30 | 重庆市电力公司万州供电局 | Insulating anti-falling device |
| CN202951148U (en) * | 2012-11-26 | 2013-05-29 | 沧州供电公司 | Falling resistant device special for climbing iron tower |
| CN103611223A (en) * | 2013-11-17 | 2014-03-05 | 国家电网公司 | Anti-fall device for climbing power transmission tower |
| CN104906719A (en) * | 2015-06-04 | 2015-09-16 | 国网山东冠县供电公司 | Assembled tower climbing anti-falling device |
-
2018
- 2018-12-20 CN CN201811564962.4A patent/CN109473907A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201227477Y (en) * | 2008-06-06 | 2009-04-29 | 辛拴义 | Aloft work anti-falling safe protection device |
| CN101745191A (en) * | 2010-01-06 | 2010-06-23 | 浙江电力职业技术学院 | Movable type falling protection device for cement pole operation |
| CN202699904U (en) * | 2012-08-03 | 2013-01-30 | 重庆市电力公司万州供电局 | Insulating anti-falling device |
| CN202951148U (en) * | 2012-11-26 | 2013-05-29 | 沧州供电公司 | Falling resistant device special for climbing iron tower |
| CN103611223A (en) * | 2013-11-17 | 2014-03-05 | 国家电网公司 | Anti-fall device for climbing power transmission tower |
| CN104906719A (en) * | 2015-06-04 | 2015-09-16 | 国网山东冠县供电公司 | Assembled tower climbing anti-falling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009851A (en) * | 2019-12-19 | 2020-04-14 | 国网浙江省电力有限公司温州供电公司 | Portable live working bypass equipment |
| CN111029228A (en) * | 2019-12-19 | 2020-04-17 | 国网浙江省电力有限公司温州供电公司 | Quick-hanging drop-out fuse |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201026350Y (en) | Self-saving escape device for high building | |
| CN206549022U (en) | A kind of steel tower climbing fall device | |
| CN109473907A (en) | Protection tool | |
| CN106786138B (en) | High-voltage power transmission tower overhead ground wire rotates arm elevator apparatus | |
| CN106744442A (en) | Livewire work based on unmanned aerial vehicle platform somersault coaster | |
| CN208193416U (en) | A kind of electric power pylon safety climbing device | |
| CN113137175B (en) | CT (computed tomography) installation climbing device and using method thereof | |
| CN110251858A (en) | A kind of transmission line of electricity pole ascending operation safety anti-falling device | |
| CN106563221A (en) | Safety arm type safety belt for climbing electric pole of electric power transmission line | |
| CN105186361A (en) | Internal-control type self-locking ladder head | |
| CN209724201U (en) | A kind of brick-clamping device convenient to overhaul | |
| CN114082118B (en) | High-altitude anti-falling tool and using method | |
| CN210003199U (en) | general type steelframe cat ladder climbing equipment | |
| CN104436467A (en) | Safety belt suspension device | |
| CN206976942U (en) | A kind of power construction wire-sending device | |
| CN201010254Y (en) | Elastic lock opening device of container | |
| CN108721844A (en) | A kind of steel wire drawing-type climbing cable safety foot control | |
| CN205840755U (en) | A kind of transmission line of electricity novel livewire work Self-closing lock rope ladder head | |
| CN210659900U (en) | Anti-falling power maintenance ladder | |
| CN108325118A (en) | A kind of electric power pylon safety climbing device and method | |
| CN208355961U (en) | A kind of top suspension arrangement climbed safely for electric power pylon | |
| CN204905756U (en) | Internally piloting formula auto -lock ladder head | |
| CN210728591U (en) | Detachable anti-falling foot nail | |
| CN211201730U (en) | Novel cable shaft well head cat ladder | |
| CN107605145A (en) | A kind of safe suspension member of scaffold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |