CN112870580B - Telescopic double-hook safety belt - Google Patents
Telescopic double-hook safety belt Download PDFInfo
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- CN112870580B CN112870580B CN202110189296.6A CN202110189296A CN112870580B CN 112870580 B CN112870580 B CN 112870580B CN 202110189296 A CN202110189296 A CN 202110189296A CN 112870580 B CN112870580 B CN 112870580B
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- 230000001012 protector Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000008602 contraction Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000005299 abrasion Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 230000009194 climbing Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0006—Harnesses; Accessories therefor
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
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- Emergency Lowering Means (AREA)
Abstract
The invention discloses a telescopic double-hook safety belt, which solves the problem of easy twisting in the using process of a connecting rope of a hook by improving the two-point connecting mode and the hanging position of the two connecting ropes of the hook, and effectively improves the climbing speed and the safety; according to the invention, the rope contraction mechanisms are additionally arranged on the two sides of the safety belt, and the connecting rope ring of the hook is contracted in the storage box at ordinary times, so that the connecting rope of the hook is prevented from being twisted in the use process; the speed difference protectors are arranged on the two sides of the containing box, when falling occurs, the speed difference protectors can effectively control the stretching of the rope, the falling stroke is reduced, and the injury to personnel is reduced; the telescopic double-hook safety belt can replace the original large hook of a separate safety belt and can be popularized and applied to various high-altitude operations of power transmission towers.
Description
Technical Field
The invention relates to the field of auxiliary safety equipment of power transmission lines, in particular to a telescopic double-hook safety belt.
Background
In the operation and maintenance work of a power transmission line, an upper iron tower and a lower iron tower cannot be separated from a safety belt and a big hook, but the safety belt and the big hook used at present are separated, two ropes of the big safety hook are easy to twist in the using process, the speed of climbing a tower is reduced, and meanwhile, the falling risk in the climbing process is increased.
Disclosure of Invention
The invention aims to provide a telescopic double-hook safety belt, which can effectively solve the problem that two ropes are twisted when the existing hook is used.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a telescopic double hook safety belt, includes the safety belt, the fixed safety buckle that is provided with in safety belt both ends, the fixed rope shrink mechanism that is provided with on the safety belt, the rope shrink mechanism left and right sides is the fixed speed difference protector that is provided with all, the safety belt is located the one end that two speed difference protectors kept away from mutually and is fixed respectively to be provided with to hang and hold the ring, rope shrink mechanism is inside to be provided with two and to connect the rope, and two are connected the rope both ends and pass the speed difference protector respectively and hang and hold the ring and be connected with the couple.
Further, the rope retracting mechanism comprises a containing box, a fixed rod, a double-groove winding roller, a torsional spring, two groups of rotating rods and a rubber roller, the back surface of the containing box is fixedly connected with the surface of the safety belt, the fixed rod is horizontally arranged in the containing box, the front end and the rear end of the fixed rod are fixedly connected with the positions close to the inner wall of the containing box, the double-groove winding roller is sleeved on the surface of the fixed rod, two groups of rotating rods are respectively horizontally arranged at the left side and the right side of the fixed rod, each group of two rotating rods are arranged up and down symmetrically by taking the central line of the containing box as an axis, the front end and the rear end of the rotating rod are rotatably connected with the positions close to the inner wall of the containing box through bearing seats, the rubber roller fixed sleeve is established on the rotating rod surface, the double flute wire winding roller surface front and back both ends surface is the fixed connection rope that is provided with all, and two connection rope other ends pass a set of dwang, adjacent speed differential protector and hang the ring setting respectively in proper order.
Further, the torsional spring sets up between dead lever and double flute wire winding roller, the torsional spring cover is established on the dead lever surface, torsional spring one end and dead lever fixed surface are connected, the torsional spring other end and double flute wire winding roller inner wall fixed connection, double flute wire winding roller inner wall rotates with the dead lever surface to be connected.
Further, a protection cavity is formed in the middle of the hook, an adjusting cavity is formed in the bottom of the hook, a connecting channel is vertically formed in the top surface of the hook, the bottom end of the connecting channel sequentially penetrates through the protection cavity from top to bottom and is communicated with the inside of the adjusting cavity, a protection column is vertically arranged in the protection cavity, an anti-abrasion pad is horizontally arranged on the bottom surface of the inside of the hook, the bottom surface of the anti-abrasion pad is fixedly connected with the bottom surface of the inside of the hook, a moving groove is transversely formed in the top surface of the anti-abrasion pad, the bottom end of the inside of the moving groove penetrates through the bottom surface of the inside of the hook and is communicated with the inside of the adjusting cavity, a clamping plate is vertically arranged in the moving groove, a fixing column is horizontally arranged in the adjusting cavity, positioning plates are fixedly arranged at the left end and the right end of the fixing column, the front end surfaces and the rear end surfaces of the two positioning plates are fixedly connected with the inner wall of the adjusting cavity, and a sliding plate is sleeved on the surface of the fixing column, the top surface of the sliding plate is connected with the top surface inside the adjusting cavity in a sliding mode, the bottom end of the clamping plate penetrates through the moving groove and is fixedly connected with the top surface of the sliding plate, a positioning roller is horizontally arranged on the left side of the fixing column, the front end and the rear end of the positioning roller are rotatably connected with the position, close to the inner wall of the adjusting cavity, of the adjusting cavity through bearings, the left side face of the sliding plate is fixedly connected with one end of an adjusting steel wire, and the other end of the adjusting steel wire bypasses the positioning roller and is fixedly connected with the bottom surface of the protection column.
Further, the protection post side and protection intracavity wall sliding connection are connected rope bottom through connection passageway and are extended to protection chamber and protection post top surface fixed connection, compression spring is vertical to be set up inside the protection chamber, the compression spring cover is established and is connected rope bottom surface, compression spring upper end and the inside top surface fixed connection in protection chamber, compression spring bottom and protection post top surface fixed connection.
Furthermore, the top surface of the anti-abrasion pad is provided with anti-skid teeth;
furthermore, the front end face and the rear end face of the clamping plate are connected with the inner wall of the moving groove in a sliding mode, the top end of the clamping plate penetrates through the moving groove and extends into the hook, and the side face of the top end of the moving groove is arranged in a concave mode;
furthermore, a return spring is sleeved on the surface of the left end of the fixed column, and the left end and the right end of the return spring are fixedly connected with the side surface of the right positioning plate and the right side surface of the sliding plate respectively;
further, the anti-abrasion pad is made of rubber materials.
Compared with the prior art, the invention has the beneficial effects that: the telescopic double-hook safety belt solves the problem that the connecting rope of the hook is easy to twist in the using process by improving the two-point connecting mode and the hanging position of the two connecting ropes of the hook, and effectively improves the climbing speed and the safety; the rope contraction mechanisms are additionally arranged on the two sides of the safety belt, when the safety belt is not used, the connecting rope ring of the hook is contracted in the storage box, and the problem that the connecting rope of the hook is easy to twist in the use process is further avoided; the speed difference protectors are arranged on the two sides of the containing box, when falling occurs, the speed difference protectors can effectively control the stretching of the rope, the falling stroke is reduced, and the injury to personnel is reduced; the telescopic double-hook safety belt can replace the original large hook of the separate safety belt and can be popularized and applied to various high-altitude operations of the power transmission iron tower.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is an overall perspective view of the present invention;
fig. 2 is a front structural sectional view of the rope retracting mechanism of the present invention;
FIG. 3 is a cross-sectional view of the front structure of the hook of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3 according to the present invention.
In the figure: the rope-type safety belt retractor comprises a safety belt 1, a rope-type retraction mechanism 2, a storage box 201, a fixing rod 202, a double-groove winding roller 203, a torsion spring 204, a rotating rod 205, a rubber roller 206, a safety buckle 3, a speed difference protector 4, a hanging ring 5, a hook 6, a protection cavity 601, an adjustment cavity 602, a connection channel 603, a protection column 604, a compression spring 605, an anti-abrasion pad 606, a moving groove 607, a positioning roller 608, a fixing column 609, a sliding plate 610, a clamping plate 611, a return spring 612 and a steel wire adjusting 613.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
In the description of the present invention, it is to be understood that the terms "longitudinal," "length," "circumferential," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in the figures, the telescopic double-hook safety belt comprises a safety belt 1, safety buckles 3 are fixedly arranged at two ends of the safety belt 1, a rope contraction mechanism 2 is fixedly arranged on the safety belt 1, speed difference protectors 4 are fixedly arranged at the left side and the right side of the rope contraction mechanism 2, hanging rings 5 are fixedly arranged at the ends, far away from the two speed difference protectors 4, of the safety belt 1 respectively, two connecting ropes are arranged inside the rope contraction mechanism 2, and two ends of the two connecting ropes respectively penetrate through the speed difference protectors 4 and the hanging rings 5 to be connected with hooks 6;
the rope retracting mechanism 2 comprises a storage box 201, a fixed rod 202, a double-groove winding roller 203, a torsional spring 204, two groups of rotating rods 205 and a rubber roller 206, the back surface of the storage box 201 is fixedly connected with the surface of the safety belt 1, the fixed rod 202 is horizontally arranged in the storage box 201, the front end and the rear end of the fixed rod 202 are fixedly connected with the positions close to the inner wall of the storage box 201, the double-groove winding roller 203 is sleeved on the surface of the fixed rod 202, the two groups of rotating rods 205 are respectively and horizontally arranged at the left side and the right side of the fixed rod 202, each group of rotating rods 205 is two and is vertically symmetrically arranged by the central line of the storage box 201, the front end and the rear end of each rotating rod 205 are rotatably connected with the positions close to the inner wall of the storage box 201 through bearing seats, the rubber roller 206 is fixedly sleeved on the surface of each rotating rod 205, the front end and the rear end surfaces of the surface of the double-groove winding roller 203 are respectively and fixedly provided with connecting ropes, the other ends of the two connecting ropes sequentially pass through the group of the rotating rods 205, the adjacent speed difference protector 4 and the hanging ring 5, the torsion spring 204 is arranged between the fixed rod 202 and the double-groove winding roller 203, the torsion spring 204 is sleeved on the surface of the fixed rod 202, one end of the torsion spring 204 is fixedly connected with the surface of the fixed rod 202, the other end of the torsion spring 204 is fixedly connected with the inner wall of the double-groove winding roller 203, and the inner wall of the double-groove winding roller 203 is rotatably connected with the surface of the fixed rod 202; the rope retracting mechanisms 2 are additionally arranged on the two sides of the safety belt 1, when the safety belt is not used, the connecting rope ring of the hook 6 is retracted in the storage box 201, and the phenomenon that the connecting rope of the hook 6 is easily twisted in the using process is avoided;
a protection cavity 601 is arranged in the middle of the hook 6, an adjusting cavity 602 is arranged at the bottom of the hook 6, a connecting channel 603 is vertically arranged on the top surface of the hook 6, the bottom end of the connecting channel 603 sequentially penetrates through the protection cavity 601 and the inside of the adjusting cavity 602 from top to bottom, a protection column 604 is vertically arranged inside the protection cavity 601, the side surface of the protection column 604 is in sliding connection with the inner wall of the protection cavity 601, the bottom end of a connecting rope penetrates through the connecting channel 603 and extends to the protection cavity 601 to be fixedly connected with the top surface of the protection column 604, a compression spring 605 is vertically arranged inside the protection cavity 601, the compression spring 605 is sleeved on the bottom surface of the connecting rope, the upper end of the compression spring 605 is fixedly connected with the top surface inside the protection cavity 601, the bottom end of the compression spring 605 is fixedly connected with the top surface of the protection column 604, an anti-wear pad 606 is horizontally arranged on the bottom surface inside the hook 6, anti-skid teeth are arranged on the top surface of the anti-wear pad 606, the anti-wear pad 606 is made of rubber material, the bottom surface of the anti-wear pad 606 is fixedly connected with the bottom surface inside of the hook 6, the top surface of the wear-resistant pad 606 is transversely provided with a moving groove 607, the bottom end inside the moving groove 607 penetrates through the bottom surface inside the hook 6 and is arranged in a penetrating manner with the inside of the adjusting cavity 602, the clamping plate 611 is vertically arranged inside the moving groove 607, the inside of the adjusting cavity 602 is horizontally provided with a fixed column 609, the left end and the right end of the fixed column 609 are both fixedly provided with a positioning plate, the front end surface and the rear end surface of the two positioning plates are fixedly connected with the inner wall of the adjusting cavity 602, the surface of the fixed column 609 is slidably sleeved with a sliding plate 610, the top surface of the sliding plate 610 is slidably connected with the top surface inside the adjusting cavity 602, the left end and the right end of the fixed column 609 are respectively fixedly connected with the side surface of the right positioning plate and the right end of the sliding plate 610, the bottom end of the clamping plate 611 penetrates through the moving groove 607 and is fixedly connected with the top surface of the sliding plate 610, the front end surface and the front end surface of the clamping plate 611 are slidably connected with the inner wall of the moving groove 607, the top end of the clamping plate 611 penetrates through the moving groove and extends to the inside of the hook 6, the side surface of the top end of the movable groove 607 is concavely arranged, the left side of the fixed column 609 is horizontally provided with a positioning roller 608, the front end and the rear end of the positioning roller 608 are rotatably connected with the positions, close to the inner wall of the adjusting cavity 602, of the bearings, the left side surface of the sliding plate 610 is fixedly connected with one end of an adjusting steel wire 613, the other end of the adjusting steel wire 613 bypasses the positioning roller 608 to be fixedly connected with the bottom surface of the protective column 604, and the two sides of the containing box 201 are provided with the speed difference protector 4; when the connecting rope is pulled more and more tightly, the clamping plate 611 can be matched with the clamping protection rope to further prevent unhooking and improve safety.
When the device is used, the problem that the connecting ropes of the hook 6 are easy to twist in the using process is solved by improving the two-point connecting mode and the hanging position of the two connecting ropes of the hook 6, and the climbing speed and the climbing safety are improved; the rope retracting mechanisms 2 are additionally arranged on the two sides of the safety belt 1, when the safety belt is not used, the connecting rope ring of the hook 6 is retracted in the storage box 201, and the phenomenon that the connecting rope of the hook 6 is easily twisted in the using process is avoided; the speed difference protectors 4 are arranged on two sides of the containing box 201, when falling occurs, the speed difference protectors 4 can effectively control the stretching of the rope, the falling stroke is reduced, and the injury to personnel is reduced; the telescopic double-hook safety belt can achieve expected effects through multiple field tests, can replace the original large hook of the separated safety belt, and can be popularized and applied to various high-altitude operations of power transmission towers.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A telescopic double hook safety belt, includes safety belt (1), its characterized in that: safety buckles (3) are fixedly arranged at two ends of the safety belt (1), a rope contraction mechanism (2) is fixedly arranged on the safety belt (1), speed difference protectors (4) are fixedly arranged at the left side and the right side of the rope contraction mechanism (2), hanging rings (5) are fixedly arranged at the ends, far away from the two speed difference protectors (4), of the safety belt (1) respectively, two connecting ropes are arranged inside the rope contraction mechanism (2), and two ends of the two connecting ropes respectively penetrate through the speed difference protectors (4) and the hanging rings (5) to be connected with hooks (6);
the middle part of the hook (6) is provided with a protection cavity (601), the bottom of the hook (6) is provided with an adjusting cavity (602), the top surface of the hook (6) is vertically provided with a connecting channel (603), the bottom end of the connecting channel (603) sequentially penetrates through the protection cavity (601) and the adjusting cavity (602) from top to bottom, the inside of the protection cavity (601) is vertically provided with a protection column (604), the bottom surface of the inside of the hook (6) is horizontally provided with an anti-abrasion pad (606), the bottom surface of the anti-abrasion pad (606) is fixedly connected with the bottom surface of the inside of the hook (6), the top surface of the anti-abrasion pad (606) is transversely provided with a moving groove (607), the bottom end of the inside of the moving groove (607) penetrates through the bottom surface of the inside of the hook (6) and is communicated with the inside of the adjusting cavity (602), the inside of the moving groove (607) is vertically provided with a clamping plate (611), the inside of the adjusting cavity (602) is horizontally provided with a fixing column (609), the left end and the right end of the fixed column (609) are fixedly provided with positioning plates, the front end faces and the rear end faces of the two positioning plates are fixedly connected with the inner wall of the adjusting cavity (602), a sliding plate (610) is sleeved on the surface of the fixed column (609) in a sliding mode, the top face of the sliding plate (610) is in sliding connection with the inner top face of the adjusting cavity (602), the bottom end of the clamping plate (611) penetrates through a moving groove (607) and is fixedly connected with the top face of the sliding plate (610), a positioning roller (608) is horizontally arranged on the left side of the fixed column (609), the front end and the rear end of the positioning roller (608) are rotatably connected with the position, close to the inner wall of the adjusting cavity (602), of the sliding plate (610), one end of an adjusting steel wire (613) is fixedly connected with the left side face of the sliding plate, and the other end of the adjusting steel wire (613) bypasses the positioning roller (608) and is fixedly connected with the bottom face of the protecting column (604).
2. The retractable double hook harness as claimed in claim 1 wherein: the rope retracting mechanism (2) comprises a containing box (201), a fixing rod (202), a double-groove winding roller (203), a torsion spring (204), two groups of rotating rods (205) and a rubber roller (206), wherein the back of the containing box (201) is fixedly connected with the surface of the safety belt (1), the fixing rod (202) is horizontally arranged inside the containing box (201), the front end and the back end of the fixing rod (202) are fixedly connected with the inner wall of the containing box (201) in a close mode, the double-groove winding roller (203) is sleeved on the surface of the fixing rod (202), the two groups of rotating rods (205) are respectively horizontally arranged on the left side and the right side of the fixing rod (202), each group of rotating rods (205) is two groups which are arranged in an up-and-down symmetrical mode by using the central line of the containing box (201), the front end and the back end of each rotating rod (205) are rotatably connected with the position, close to the inner wall of the containing box (201), the rubber roller (206) is fixedly arranged on the surface of the rotating rods (205), the surface of the front end and the surface of the rear end of the double-groove winding roller (203) are fixedly provided with connecting ropes, and the other ends of the two connecting ropes sequentially penetrate through a group of rotating rods (205), adjacent speed difference protectors (4) and hanging rings (5).
3. A retractable double hook harness as claimed in claim 2 wherein: torsional spring (204) set up between dead lever (202) and double flute wire winding roller (203), dead lever (202) surface is established in torsional spring (204) cover, torsional spring (204) one end and dead lever (202) fixed surface are connected, torsional spring (204) other end and double flute wire winding roller (203) inner wall fixed connection, double flute wire winding roller (203) inner wall is connected with dead lever (202) surface rotation.
4. The retractable double hook harness as claimed in claim 1 wherein: protection post (604) side and protection chamber (601) inner wall sliding connection connect rope bottom run-through connection passageway (603) and extend to protection chamber (601) and protection post (604) top surface fixed connection, the inside vertical compression spring (605) that is provided with in protection chamber (601), compression spring (605) cover is established and is connected rope bottom surface, compression spring (605) upper end and the inside top surface fixed connection in protection chamber (601), compression spring (605) bottom and protection post (604) top surface fixed connection.
5. The retractable double hook harness as claimed in claim 1 wherein: the top surface of the wear-resistant pad (606) is provided with anti-skidding teeth.
6. The retractable double hook harness as claimed in claim 1 wherein: the front end face and the rear end face of the clamping plate (611) are connected with the inner wall of the moving groove (607) in a sliding mode, the top end of the clamping plate (611) penetrates through the moving groove (607) and extends into the hook (6), and the side face of the top end of the moving groove (607) is arranged in a recessed mode.
7. The retractable double hook harness as claimed in claim 1 wherein: the surface of the left end of the fixing column (609) is sleeved with a return spring (612), and the left end and the right end of the return spring (612) are fixedly connected with the side surface of the right positioning plate and the right side surface of the sliding plate (610) respectively.
8. The retractable double hook harness as claimed in claim 1 wherein: the anti-abrasion pad (606) is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189296.6A CN112870580B (en) | 2021-02-19 | 2021-02-19 | Telescopic double-hook safety belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189296.6A CN112870580B (en) | 2021-02-19 | 2021-02-19 | Telescopic double-hook safety belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112870580A CN112870580A (en) | 2021-06-01 |
| CN112870580B true CN112870580B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110189296.6A Active CN112870580B (en) | 2021-02-19 | 2021-02-19 | Telescopic double-hook safety belt |
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| Country | Link |
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| CN (1) | CN112870580B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1119475B (en) * | 1979-10-26 | 1986-03-10 | Monferrato Forever A & A Snc | ANTI-FALL SAFETY DEVICE ESPECIALLY FOR OPERATORS CLIMBING ON LINES OF POWER AND SIMILAR PRODUCTS |
| JPH0824352A (en) * | 1994-07-13 | 1996-01-30 | Fujii Denko Co Ltd | Hook with integrated shock absorber |
| CN103599604B (en) * | 2013-11-29 | 2015-09-30 | 国家电网公司 | A kind of safety belt catching device |
| CN104069598A (en) * | 2014-06-25 | 2014-10-01 | 国家电网公司 | High-altitude operation protection device |
| CN211273243U (en) * | 2019-10-29 | 2020-08-18 | 同济大学 | A fall arrest retractable safety belt |
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2021
- 2021-02-19 CN CN202110189296.6A patent/CN112870580B/en active Active
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| CN112870580A (en) | 2021-06-01 |
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