CN115957456A - Adjustable anti-falling device capable of adapting to thickness of hook hanging rod - Google Patents
Adjustable anti-falling device capable of adapting to thickness of hook hanging rod Download PDFInfo
- Publication number
- CN115957456A CN115957456A CN202211515271.1A CN202211515271A CN115957456A CN 115957456 A CN115957456 A CN 115957456A CN 202211515271 A CN202211515271 A CN 202211515271A CN 115957456 A CN115957456 A CN 115957456A
- Authority
- CN
- China
- Prior art keywords
- lock
- tooth
- shaped
- spoon
- arc
- 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
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 8
- 230000009194 climbing Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Supports Or Holders For Household Use (AREA)
Abstract
The invention discloses an adjustable anti-falling device capable of adapting to the thickness of a hooked suspender, which comprises a handle part and a lock body part positioned above the handle part, wherein the middle part of the lock body part is provided with a lock hole, a lock cylinder is arranged in the lock head part in a rotatable shaft manner and positioned on one side of the lock hole in a U-shaped manner and can rotate in the lock hole area, the middle part of a spoon-shaped lock tooth is arranged in the lock body part in a shaft manner through a torsion spring and positioned on the other side of the lock hole, the upper end of the spoon-shaped lock tooth is provided with at least one lock tooth, a pressing tongue with the other end in a bent manner is exposed out of the outer side of the lock body part, and under the action of the torsion spring, the lock tooth end is inclined downwards, and the pressing tongue is tilted to prop against a shell of the lock body part in a normal state; the width of the opening of the lock hole is gradually reduced from bottom to top, and the top of the opening is arc-shaped. The device can be adapted to the current common types of the foot nails, has the functions of self-adapting to the clamping position and keeping clamping according to the thickness of the foot nails, and further improves the applicability and the safety of the anti-falling tool.
Description
Technical Field
The invention relates to the technical field of safety protection tools for preventing falling during tower climbing maintenance of a power transmission line in a power system, in particular to an adjustable falling prevention device capable of adapting to the thickness of a hook suspender.
Background
In the prior art, when a power transmission line is overhauled, the iron tower of the power transmission line needs to be climbed, the protection of a safety belt is not lost when the iron tower is climbed and the position is transferred according to the electric power safety work regulations of the southern China Power grid Limited liability company 3-20.2.2, and whether the safety belt is fastened or not is checked at any time in the operation process. The climbing of the electric power pole tower is the most basic operation in the maintenance work of the electric transmission line, the danger is large, and the danger degree of workers carrying various heavy equipment to climb the tower is large. Therefore, how to ensure the personal safety of workers in the process of climbing the electric power tower is the direction of industrial research. However, the existing anti-falling tool for climbing the tower has the problem of poor practicability, and does not have the capability of timely reducing the physical consumption in case of danger, so that the anti-falling tool for climbing the tower with strong practicability is necessary.
The anti-falling tools commonly used at present are anti-falling double-extension protection ropes and double-hook protection anti-falling tools, and a power transmission line tower climbing portable anti-falling tool with the application of the applicant in the early application and the publication number of CN 208448460U; however, the climbing protection hook foot nails arranged on the tower in different areas or different periods have different thicknesses, that is, if the anti-falling tool before use is used, when the foot nails have different thicknesses, the situation that the sizes of the hanging holes are not matched can occur, and once the hanging is carried out, the hole positions are not matched for the foot nails, so that the safety hazards can not be stably locked, and the safety hazards can easily occur.
Disclosure of Invention
In order to solve the defects in the prior art, the applicant provides a falling prevention tool capable of adaptively matching the thickness of a pin, the falling prevention tool can be adapted to the type of the common pin at present, the falling prevention tool has the functions of adaptively clamping a position according to the thickness of the pin and keeping clamping, and the applicability and the safety of the falling prevention tool are further improved. Specifically, the invention is realized by the following steps:
the utility model provides an anti-falling device with adjustable can adapt to hook jib thickness, includes handle portion and the lock body portion that is located handle portion top, and the lockhole has been seted up at the middle part of lock body portion, and the lock core is installed in the lock head portion with rotatable shaft type, is located lockhole one side, is the U type form, can be at the regional internal rotation of lockhole. The middle part of the spoon-shaped locking tooth is arranged in the lock body part in a shaft type manner through a torsion spring and is positioned at the other side of the lock hole, the upper end head of the spoon-shaped locking tooth is provided with at least one locking tooth, the pressing tongue with the other end in a bent shape is exposed out of the outer side of the lock body part, and under the action of the torsion spring, the end of the locking tooth is inclined downwards, and the pressing tongue is tilted to prop against the shell of the lock body part in a normal state; the width of the opening of the lock hole is gradually reduced from bottom to top, and the top of the opening is arc-shaped.
Further, the lock core is integrated into one piece's U type or C type structure, and its middle part passes lock body portion installation through the axis body, and the end of U type or C type structure can rotate in lockhole region top, and the first end of top is provided with first inclined plane in below one side inwards, and top one side outwards is first cambered surface.
Further, the upper end of the spoon-shaped locking tooth is provided with two locking teeth: the first locking tooth and the second locking tooth are sequentially arranged from bottom to top, and in a normal state, the first locking tooth and the second locking tooth are inclined obliquely downwards; the first end of the lock cylinder can be clamped between the first lock tooth and the second lock tooth or clamped behind the second lock tooth.
Furthermore, the spoon-shaped lock teeth are in a mirror image S shape, the lower parts of the first lock teeth and the second lock teeth are both in a second arc surface shape, and the upper parts of the first lock teeth and the second lock teeth are in a second inclined surface shape; or when the lock core continues to move upwards, the first cambered surface is in contact with the second cambered surface of the second lock tooth, the spoon-shaped lock tooth can be pushed upwards along the second cambered surface of the second lock tooth, so that after the first end of the lock core is clamped into the second lock tooth, the first inclined surface is in contact with the second inclined surface of the second lock tooth, and the first end of the lock core is locked to prevent the first end from moving downwards.
Furthermore, the trompil shape middle part of lockhole is the width and follows supreme transition district that progressively narrows down, and end department has the segmental arc and a semicircle end with the transition district intercommunication, one side of end is arranged in to semicircle end slant, the radian of semicircle end is less than the radian of segmental arc.
Furthermore, the side surface of the lock body side in the area where the pressing tongue is located is provided with a corresponding opening, and the pressing tongue can move in the opening range; after the pressing tongue is pressed, the front end of the spoon-shaped locking tooth moves backwards, and the lock cylinder can be separated from the limit of the spoon-shaped locking tooth and moves downwards for resetting.
Furthermore, the spoon-shaped lock teeth and the lock cylinder are integrally formed.
Furthermore, the tail end of the handle part is provided with a mounting hole which is used for mounting a safety rope.
The working principle and the beneficial effects of the invention are introduced as follows: the invention relates to an adjustable anti-falling device, wherein a lock hole of the adjustable anti-falling device comprises three opening areas, a round hole with a larger bottom is used for easily sleeving a pin in the anti-falling device during climbing, then the anti-falling device is pulled downwards to enable the pin to enter a second transition area with gradually narrowed width through the larger round hole area and finally enter a lock hole area at the top, and the pin is adaptively clamped in an arc section with the width equivalent to that of the pin according to the thickness of the pin. The pin can be clamped by the structure of the invention in the face of the pin with different thicknesses, the sectional arc groove structure at the end part of the lock hole can provide clamping stress for the pin with different thicknesses, and when the pin needs to be taken down, the press tongue is pressed down by hand to enable the spoon-shaped lock tooth to move back and release the lock core, so that the lock body part can be moved up and taken out from the pin. The invention has reliable and stable structure, has a self-locking lock tooth structure, effectively prevents the rotation of the lock core, ensures that the lock core can only continuously lock the clamping range along one direction but cannot expand, has clamping and locking gears with two gears, only needs the first gear to realize clamping when the foot nail is thick, and continuously moves upwards when the foot nail is thick, so that the second end head is clamped into the interval of the second gear, the effect of adjusting multiple gears is realized, the clamping gear can be adaptively adjusted according to the thickness of the foot nail to be clamped, the lock tooth structure is tilted, the lock core is released, and the foot nail can return to a lock hole area after the lock core is reset, so that the lock tooth structure is easy to pull out and convenient to insert the next foot nail and perform the action of a next section of safe lock sleeve. The self-adaptive foot nail clamping device is small and reasonable in structure, convenient to operate, stable and safe in structure, improves the practicability and the usability on the premise of keeping the safety and the reliability based on the self-adaptive clamping function, is convenient to operate and use, and can be adapted to various types of foot nails.
Drawings
FIG. 1 is a front view of an adjustable anti-falling device capable of adapting to the thickness of a hooked suspender;
FIG. 2 is a schematic structural view of a lock cylinder and lock teeth of an internal structure for clamping a foot nail with a thick diameter of the adjustable anti-falling device capable of adapting to the thickness of a hooked suspender;
FIG. 3 is a schematic structural view of a lock core and lock teeth of an adjustable anti-falling device capable of adapting to the thickness of a hooking suspender and used for clamping a foot nail with a small diameter;
FIG. 4 is a schematic structural view of the rotational interlocking of the lock cylinder and the lock teeth of the internal structure of the adjustable anti-falling device capable of adapting to the thickness of a hooked suspender;
FIG. 5 is a perspective view of an adjustable anti-falling device adapted to the thickness of a hooking boom according to the present invention;
FIG. 6 is a schematic view showing the operation and use states of the adjustable anti-falling device capable of adapting to the thickness of the hooking suspender.
Wherein: the lock comprises a handle part 1, a lock body part 2, a lock hole 3, a lock core 4, a lock tooth 5 in a spoon shape, a torsion spring 51, a lock tooth 52, a pressing tongue 53, a first end 41, a first inclined surface 42, a first cambered surface 43, a first lock tooth 521, a second lock tooth 522, a second cambered surface 523, a second inclined surface 524, a transition area 31, an arc section 32, a semicircular end 33, an opening 21 and a mounting hole 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings in combination with the embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1: the utility model provides an anti-falling device with adjustable can adapt to hook jib thickness, includes handle portion 1 and the lock body portion 2 that is located handle portion 1 top, and lockhole 3 has been seted up at the middle part of lock body portion 2, and lock core 4 is installed in the lock head portion with rotatable shaft type, is located lockhole 3 one side, is the U type form, can be in lockhole 3 regional internal rotation. The middle part of the spoon-shaped locking tooth 5 is arranged in the lock body part 2 in a shaft type through a torsion spring 51 and is positioned at the other side of the lock hole 3, the upper end head of the spoon-shaped locking tooth 5 is provided with at least one locking tooth 52, the other end of the spoon-shaped locking tooth 5 is exposed out of the lock body part 2 in a bent shape, under the normal state, under the action of the torsion spring 51, the end of the locking tooth 52 inclines downwards, and the pressing tongue 53 tilts to jack the shell of the lock body part 2; the opening width of the opening shape of the lock hole 3 is gradually reduced from bottom to top, and the top is arc-shaped. The spoon-shaped lock tooth 5 always keeps the head downward under the action of the torsion spring 51, the head of the spoon-shaped lock tooth can be tilted only by operating the pressing tongue 53, and the tilted head can release the lock cylinder 4 to rotate. The lock cylinder 4 is used for clamping the foot nails entering the lock hole 3, the foot nails can drive the lock cylinder 4 to rotate relative to the change of the position in the lock hole 3, and the rotation of the lock cylinder 4 can be locked by the lock teeth 52, so that the foot nails can only be clamped gradually until the foot nails are positioned at the most end part of the lock hole 3 and cannot continue to ascend.
Preferably, the lock core 4 is of an integrally formed U-shaped or C-shaped structure, the middle of the lock core is installed through the lock body 2 through a shaft body, the end of the U-shaped or C-shaped structure can rotate above the area of the lock hole 3, a first inclined surface 42 is arranged on one side of the inward lower side of the first end 41 on the upper side, and a first cambered surface 43 is arranged on one side of the outward upper side. The upper end of the spoon-shaped locking tooth 5 is provided with two locking teeth 52: the first locking tooth 521 and the second locking tooth 522 are arranged from bottom to top in sequence, and in a normal state, the first locking tooth 521 and the second locking tooth 522 are inclined obliquely downwards; the first head 41 of the lock cylinder 4 can be snapped in between the first locking tooth 521 and the second locking tooth 522 or behind the second locking tooth 522. When the first end 41 of the lock cylinder 4 contacts the first lock tooth 521, the first inclined surface 42 contacts the second arc surface 523, the spoon-shaped lock tooth 5 can be pushed up along the second arc surface 523 until the whole first end 41 completely enters the lock tooth 52, the spoon-shaped lock tooth 5 resets again, and the first arc surface 43 cannot push the second inclined surface block to move upwards, so that unidirectional clamping is realized, the lock cylinder 4 is locked, until the pressing tongue 53 is pressed down, the spoon-shaped lock tooth 5 tilts upwards, the lock cylinder 4 is released, and the lock cylinder 4 can reset.
Preferably, the spoon-shaped lock tooth 5 is in a mirror image S shape, the lower parts of the first lock tooth 521 and the second lock tooth 522 of the spoon-shaped lock tooth 5 are both in a second arc surface 523, and the upper parts of the first lock tooth 521 and the second lock tooth 522 are in a second inclined surface 524, when the lock cylinder 4 moves upwards, the first arc surface 43 contacts with the second arc surface 523 of the first lock tooth 521, the spoon-shaped lock tooth 5 can be pushed upwards along the second arc surface 523 of the first lock tooth 521, so that the first end 41 of the lock cylinder 4 is clamped between the first lock tooth 521 and the second lock tooth 522, the first inclined surface 42 contacts with the second inclined surface of the first lock tooth 521, and the first end 41 of the lock cylinder 4 is locked so as not to move downwards; or when the lock cylinder 4 continues to move upwards, the first arc surface 43 contacts with the second arc surface 523 of the second lock tooth 522, and can push up the spoon-shaped lock tooth 5 along the second arc surface 523 of the second lock tooth 522, so that after the first end 41 of the lock cylinder 4 is clamped into the second lock tooth 522, the first inclined surface 42 contacts with the second inclined surface of the second lock tooth 522, and the first end 41 of the lock cylinder 4 is locked and cannot move downwards. Preferably, the middle part of the shape of the opening of the lock hole 3 is a transition area 31 with the width gradually narrowing from bottom to top, the end head is provided with an arc section 32 communicated with the transition area 31 and a semi-arc end 33, the semi-arc end 33 is obliquely arranged on one side of the end head, and the radian of the semi-arc end 33 is smaller than that of the arc section 32. According to the structure, the lock body of the gear can be controlled, and the foot nails with different thickness degrees can be self-adapted.
The side surface of the lock body part 2 in the area where the pressing tongue 53 is positioned is provided with a corresponding opening 21, and the pressing tongue 53 can move in the range of the opening 21; after the pressing tongue 53 is pressed, the front end of the spoon-shaped lock tooth 5 moves backwards, and the lock cylinder 4 can be separated from the limit of the spoon-shaped lock tooth 5 and moves downwards to reset. The spoon-shaped lock teeth 5 and the lock cylinder 4 are both integrally formed. The tail end of the handle part 1 is provided with a mounting hole 22, and the mounting hole 22 is used for mounting a safety rope.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.
Claims (8)
1. The utility model provides an anti-falling device with adjustable can adapt to hook jib thickness, includes handle portion (1) and lock body portion (2) that are located handle portion (1) top, lockhole (3), its characterized in that have been seted up at the middle part of lock body portion (2):
the lock core (4) is arranged in the lock head part in a rotatable shaft type, is positioned at one side of the lock hole (3), is in a U shape and can rotate in the area of the lock hole (3),
the middle part of the spoon-shaped locking tooth (5) is arranged in the lock body part (2) in a shaft type through a torsion spring (51) and is positioned at the other side of the lock hole (3), the upper end head of the spoon-shaped locking tooth (5) is provided with at least one locking tooth (52), the other end of the spoon-shaped locking tooth is provided with a bent pressing tongue (53) which is exposed out of the lock body part (2), under the action of the torsion spring (51) in a normal state, the end of the locking tooth (52) inclines downwards, and the pressing tongue (53) tilts to prop against the shell of the lock body part (2);
the shape of the opening of the lock hole (3) is gradually reduced from bottom to top, and the top is arc-shaped.
2. The adjustable anti-falling device according to claim 1, characterized in that the lock cylinder (4) is of an integrally formed U-shaped or C-shaped structure, the middle of the lock cylinder is installed through the lock body part (2) through a shaft body, the end of the U-shaped or C-shaped structure can rotate above the area of the lock hole (3), a first inclined surface (42) is arranged on the inward lower side of a first end (41) on the upper side, and a first cambered surface (43) is arranged on the outward upper side.
3. The adjustable fall arrest device according to claim 2, characterized in that the spoon-shaped locking tooth (5) has two locking teeth (52) at its upper end: the first locking tooth (521) and the second locking tooth (522) are arranged from bottom to top in sequence, and in a normal state, the first locking tooth (521) and the second locking tooth (522) are inclined obliquely and downwards; the first end (41) of the lock core (4) can be clamped between the first lock tooth (521) and the second lock tooth (522) or behind the second lock tooth (522).
4. The adjustable anti-falling device according to claim 3, characterized in that the spoon-shaped lock tooth (5) is mirror-imaged S-shaped, the first lock tooth (521) and the second lock tooth (522) are both provided with a second arc surface (523) at the lower part and a second inclined surface (524) at the upper part, when the lock cylinder (4) moves upwards, the first arc surface (43) contacts with the second arc surface (523) of the first lock tooth (521), the spoon-shaped lock tooth (5) can be pushed upwards along the second arc surface (523) of the first lock tooth (521), so that the first end (41) of the lock cylinder (4) is clamped between the first lock tooth (521) and the second lock tooth (522), the first inclined surface (42) contacts with the second inclined surface of the first lock tooth (521), and the first end (41) of the lock cylinder (4) is locked and cannot move downwards; or
When the lock cylinder (4) continues to move upwards, the first arc face (43) is in contact with the second arc face (523) of the second lock tooth (522), the spoon-shaped lock tooth (5) can be pushed upwards along the second arc face (523) of the second lock tooth (522), after the first end (41) of the lock cylinder (4) is clamped into the second lock tooth (522), the first inclined face (42) is in contact with the second inclined face of the second lock tooth (522), and the first end (41) of the lock cylinder (4) is locked to enable the lock cylinder to be incapable of moving downwards.
5. The adjustable anti-falling device according to any one of claims 1 to 4, characterized in that the middle of the shape of the opening of the lock hole (3) is a transition area (31) with a width gradually narrowing from bottom to top, an arc section (32) communicated with the transition area (31) and a semicircular arc end (33) are arranged at the end head, the semicircular arc end (33) is obliquely arranged at one side of the end head, and the radian of the semicircular arc end (33) is smaller than that of the arc section (32).
6. The adjustable fall arrest device according to claim 1, characterized in that the lock body part (2) in the region of the pressing tongue (53) is provided with a corresponding opening (21) on its side, the pressing tongue (53) being displaceable within the opening (21); after the pressing tongue (53) is pressed, the front end of the spoon-shaped lock tooth (5) moves backwards, and the lock cylinder (4) can be separated from the limit of the spoon-shaped lock tooth (5) and moves downwards to reset.
7. The adjustable fall arrest device according to claim 1, characterized in that the spoon-shaped locking tooth (5) and the lock cylinder (4) are both integrally formed.
8. The adjustable anti-falling device according to claim 1, characterized in that the tail end of the handle part (1) is provided with a mounting hole (22), and the mounting hole (22) is used for mounting a safety rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211515271.1A CN115957456A (en) | 2022-11-30 | 2022-11-30 | Adjustable anti-falling device capable of adapting to thickness of hook hanging rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211515271.1A CN115957456A (en) | 2022-11-30 | 2022-11-30 | Adjustable anti-falling device capable of adapting to thickness of hook hanging rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115957456A true CN115957456A (en) | 2023-04-14 |
Family
ID=87358940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211515271.1A Pending CN115957456A (en) | 2022-11-30 | 2022-11-30 | Adjustable anti-falling device capable of adapting to thickness of hook hanging rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115957456A (en) |
-
2022
- 2022-11-30 CN CN202211515271.1A patent/CN115957456A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU124160U1 (en) | LIFTING DEVICE OF ANTIPANIKA SYSTEM WITH THE POSSIBILITY OF LIFTING | |
| US10760338B2 (en) | Ladder securing apparatuses, ladders incorporating same and related methods | |
| US7320159B2 (en) | Karabiner with locking ring | |
| CA2258470C (en) | Self locking snap hook | |
| US7571944B2 (en) | Safety and rescue carabiner holder | |
| US5361464A (en) | Double action snap hook | |
| CN202072397U (en) | Universal anti-separating lifting hook | |
| EP2525878A1 (en) | Safety system with two carabiners each one to be hung to a belay element for climbing purposes, adventure parks, works on civil structures or generally works requiring safety ropes | |
| CN115957456A (en) | Adjustable anti-falling device capable of adapting to thickness of hook hanging rod | |
| CN210250904U (en) | Panic rope riser/descender device | |
| CN219375916U (en) | Adjustable anti-falling device capable of adapting to thickness of hooking suspender | |
| JP4279429B2 (en) | Ladder hook | |
| CN201978415U (en) | Manual riser | |
| CN113069696B (en) | Locking anti-falling safety hook | |
| EP1070862B1 (en) | Wide base perpendicular hook karabiner | |
| CN211573368U (en) | Ladder fixed knot constructs and ladder for building | |
| KR20220056721A (en) | Rope clamping device for fall prevention | |
| JP5503614B2 (en) | Clothes drying equipment | |
| CN220459860U (en) | Handheld lifter | |
| CN113908456B (en) | Multi-mode eccentric wheel panic-proof descender | |
| JP2011089315A (en) | Scaffold support connecting hook and safety belt | |
| KR100930689B1 (en) | Buckle of Industrial Seat Belt | |
| US20200306566A1 (en) | Closure system | |
| CN215995353U (en) | Buckle assembly for mechanical grabbing | |
| JP2587555Y2 (en) | Step bolt hook |
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 |