CN203634684U - Integrated buffer connecting device - Google Patents
Integrated buffer connecting device Download PDFInfo
- Publication number
- CN203634684U CN203634684U CN201320746857.9U CN201320746857U CN203634684U CN 203634684 U CN203634684 U CN 203634684U CN 201320746857 U CN201320746857 U CN 201320746857U CN 203634684 U CN203634684 U CN 203634684U
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- Prior art keywords
- suspender belt
- connecting rods
- buffer
- safety door
- auxiliary suspender
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Abstract
The utility model provides an integrated buffer connecting device which is used for preventing high-altitude falling. The integrated buffer connecting device comprises safety hooks, buffer strips, auxiliary slings and outer sheathes; the two ends of the auxiliary slings are respectively and fixedly connected with the safety hooks; folding sleeves are arranged at the fixed connection parts of the two ends of the auxiliary slings and the safety hooks; the buffer strips are ring-shaped, and comprise long-bundle fiber and short-bundle fiber; the buffer strips are arranged in the folding sleeves at the two ends of the auxiliary slings in a sleeving manner; the outer sheathes are wrapped outside the buffer strips and the auxiliary slings; two ends of the outer sheathes are fixedly connected with the auxiliary slings. The novel integrated buffer connecting device has a simple structure, is portable and durable, and is safer and more comfortable.
Description
Technical field
The utility model relates to a kind of buffer connecting rods, and specifically a kind of lighter, safer integral type buffer connecting rods with high altitude anti-falling function, is applicable to the work high above the ground of the conglomeraties such as oil, building, electric power, telecommunications.
Background technology
Existing work high above the ground buffer connecting rods is mostly the design of " ribbon is torn " type, two ribbons are woven together and become approximately 0.9 meter of long buffer strip, the free-end of two ribbons is affixed with rope and steel hook respectively, meanwhile, approximately 1.75 meters of long auxiliary suspender belts is set; Folding above-mentioned each band plastic packaging is become to the long rectangle bag of 20cm; In the time that staff falls, this bag and buffer strip are opened impact-absorbing kinetic energy.In actual applications, find that this design has the following disadvantages: 1. volume is large and heavy, use effort inconvenient again; 2. this design safety less stable, two ribbons are in braiding process, and the local difference of the degree of tightness of braiding, broken string the end of a thread, material etc. all can affect the tensile force value of buffer strip, and these factors are difficult to constant control; 3. the more important thing is, when staff falls, this rectangle bag acts on impulsive force on human body while opening impact-absorbing kinetic energy excessive, generally all be greater than 6KN, do not meet the requirement of Europe superscript EN355 and GB GB/T24538-2009, even without born, may cause serious actual bodily harm to the personnel that fall too, staff's safety cannot be protected.
Utility model content
In order to overcome the structural deficiency of above existing work high above the ground buffer connecting rods, technical problem to be solved in the utility model is to provide a kind of applied range, simple and reasonable and more light safe buffer connecting rods.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
The utility model provides a kind of integral type buffer connecting rods, and this buffer connecting rods comprises safety door hook, buffer strip, auxiliary suspender belt and external jacket; Described auxiliary suspender belt two ends are affixed with described safety door hook respectively, and fixing position is provided with folding cover; Described buffer strip is ring-type, is made up of fibre bundle and short bundle fiber, and this buffer strip is set in the folding cover at auxiliary suspender belt two ends; Described external jacket is wrapped in described buffer strip and the outside of auxiliary suspender belt, and its two ends and auxiliary suspender belt are affixed; The length of described auxiliary suspender belt is 2.5～4 times of described fibre bundle length.
Above-mentioned buffer strip forms (every bundle fiber is to be entwined ring-type by a fiber along radii fixus) by two different bundle fibers of length,, fibre bundle and short bundle fiber, this fiber is selected from the material that good-extensibility and anti-poor flexibility even do not rebound, as former raw silk of terylene etc.; This buffer strip directly adopts fibre bundle and without establishment, has simplified preparation technology, has reduced again the initial velocity that absorbs the kinetic energy that falls in the process of falling, and effectively plays the effect of buffering.When buffer connecting rods of the present utility model is subject to the external force such as human body fall, the first stressed stretching of short bundle fiber absorbs the kinetic energy that falls, be stretched to two bundle fibers stressed stretchings simultaneously when isometric with fibre bundle, when two bundle fibers are pulled to three's acting in conjunction when assisting suspender belt isometric, realize the kinetic energy that falls is absorbed to strengthening gradually stage by stage of dynamics, to finally absorbing completely, this design has extended impact force action in the person's of falling time with it, in guaranteeing to avoid human body born, greatly reduce safety device and absorbed the impulsive force that brings the person's of falling health while falling kinetic energy, compare with existing similar height safety system, security and comfort level are further improved.Meanwhile, above-mentioned design of the present utility model has also alleviated the weight of buffer connecting rods, compared with existing like product, and the about 1kg of weight saving, because work high above the ground often needs the long period, therefore the weight of 1kg also can become no small burden.
The length of buffer strip described in the utility model (comprising fibre bundle and short fiber bundle), refers to 1/2 of ring-type buffer strip girth.
Described folding cover, it is folding after safety door hook to be that one end of described auxiliary suspender belt is run through, termination and auxiliary suspender belt are affixed and form, the buffer strip of described ring-type is set in respectively in the folding cover at these auxiliary suspender belt two ends, can stretch in the same way with this auxiliary suspender belt, for protection buffer strip and auxiliary suspender belt easy to use, this buffer strip and auxiliary suspender belt outside are provided with external jacket, this external jacket is preferably light, wear-resisting material is made, as nylon and polyster fibre etc., these external jacket two ends and auxiliary suspender belt are affixed, and (this is affixed only plays fixing effect, weight bearing area is affixed between the auxiliary suspender belt of its dynamics and safety door hook etc. is much smaller), this external jacket and auxiliary suspender belt fixing position are preferably provided with end socket, as thermoplastic end socket, can prevent the edge abrasion of external jacket, off-line, make again this fixing position neat and tidy, be difficult for by hook, hang and hinder work high above the ground person normally to work.
The length of described auxiliary suspender belt is preferably 2.8～3.5 times of described fibre bundle length, more preferably 3.2～3.5 times.The length of described auxiliary suspender belt, fibre bundle and short bundle fiber is all not identical, and the auxiliary suspender belt in external jacket and fibre bundle all carry out the folding processing of a place or many places, makes it isometric with short bundle fiber.
Long 10～30 centimetres of the shorter bundle fiber of length of fibre bundle described in the utility model.When described fibre bundle and short bundle fiber length difference are less than 10 centimetres, short bundle fiber plays a role separately too smallly, cannot reach the object of this design classification buffering; And this length difference is while being greater than 30 centimetres, easily there is discrepancy in the classification buffering between short bundle fiber and fibre bundle, cause certain in a flash the person's of falling impulsive force to be increased, the person's of falling health is caused to discomfort, even produce potential safety hazard, destroyed the effect of progressive buffering, therefore, preferably long 15～30 centimetres of the shorter bundle fiber of the length of described fibre bundle, more preferably long 20～25 centimetres.
Above-mentioned buffer connecting rods can be made plurality of specifications according to actual needs, (refer to as 1.5 meters, entire length including two safety door hooks), 1.8 meters etc., the length difference of the required buffer strip of different size, if the fibre bundle length of 1.5 meters of specifications is 105～125 centimetres, short bundle fiber length is 80～100 centimetres; The fibre bundle length of 1.8 meters of specifications is 115～145 centimetres, and preferably 125～145 centimetres, short bundle fiber length is 95～125 centimetres, preferably 105～125 centimetres.
Consider work high above the ground person's body weight difference and the not equal factor of the height of fall, for really guaranteeing all use the utility model buffer connecting rods persons' life security, inventor has carried out lot of experiments to the distribution of the fibre bundle in described buffer strip and short bundle fiber quantity, can complete buffering, the anti-drop function of normal type use crowd while falling, the object that auxiliary suspender belt exists as safety measure for subsequent use to realize buffer strip only.Result of the test shows, reach this object, needs fibre bundle to be no less than 340 circles (circle), and short bundle fiber is no less than 130 circles; The impulsive force being subject to for reducing to greatest extent the person of falling, preferably fibre bundle 340～380 circles, short bundle fiber 130～170 circles, more preferably fibre bundle 340～360 circles, short bundle fiber 130～150 circles.
The mode that the utility model adopts buffer strip to combine with auxiliary suspender belt ensures work high above the ground person's personal safety, and the intensity of wherein said auxiliary suspender belt, far above described buffer strip, is preferably braid, mainly as for subsequent use or safety measure of guaranteeing the minimum.So design, on the one hand, in buffer strip, fiber consumption can be determined according to normal condition, expends thereby reduce unnecessary fiber; On the other hand, even if reach again, the fortuitous event that buffer strip is pulled off occurs, auxiliary suspender belt also can complete separately safe task, has guaranteed work high above the ground person's life security.
Above-mentioned buffer connecting rods is a kind of security protection equipment of work high above the ground, only meet accident and just play a role while falling, so can be by Reusability repeatedly, in use procedure, inevitably wear and tear, particularly each junction, for extending the service life of this device and guaranteeing its security, folding putting described in the utility model is arranged with wearing ring, described buffer strip is connected with folding cover by this wearing ring, specifically, wearing ring is set in folding cover, buffer strip is set on wearing ring, overlap and directly contact is not folding, wearing ring smooth surface has radian and can rotate around folding cover, significantly reduce the friction of buffer strip and folding inner room.For making two bundle fibers more stable with contacting of wearing ring, described wearing ring is provided with two grooves, is preferably designed for small one and large one two arc grooves, and described fibre bundle is inserted in vat, and short bundle fiber is inserted in sulculus.
Described auxiliary suspender belt and safety door hook junction are provided with wearing bush.In a preferred embodiment, described auxiliary suspender belt and the affixed mode of safety door hook are, turn back after running through safety door hook in its termination, termination is affixed with the another two sections of auxiliary suspender belts that overlap, realize and formation folding cover affixed with safety door hook, described wearing bush is set on auxiliary suspender belt and every between auxiliary suspender belt and safety door hook,, auxiliary suspender belt does not directly contact with safety door hook, but pass through wearing bush, to reduce the abrasion of safety door hook to auxiliary suspender belt in long-term use procedure, guarantee the security of auxiliary suspender belt.
For further improving security and the stability of buffer strip, in a preferred embodiment, be wound around, bundle fixing with adhesive tape respectively by being set in the fibre bundle at wearing ring place, short bundle fiber.
Described buffer strip outside is provided with protective sleeve; for fixing and protection two bundle fibers; for avoiding tangled up and knotted between plurality of fibers that length differs; preferably be respectively equipped with protective sleeve at fibre bundle and short bundle fiber outside; protection running-on can be fixed by adhesive tape etc.; preferably two protection running-ons are fixed together, improved the connective stability of described fibre bundle, short bundle fiber and wearing ring, can conveniently be set with again external jacket.
One end of described auxiliary suspender belt is also provided with rescue ring, the position of this rescue ring is located near folding cover position, as equal-height position or its below (away from this end safety door hook one side), in another preferred embodiment, described rescue ring is folding by one section of auxiliary suspender belt, and the affixed formation shell-like of its root, for not changing the bearing of trend of auxiliary hanging the fastness of enhancing rescue ring of rescue ring both sides, this section of auxiliary suspender belt is collapsible twice, reserves other laps of rescue ring affixed.Security and portable degree that band is considered, safety door hook in like product of the present utility model is selected small one and large one two conventionally, and wherein large safety door hook is for being connected with fixture, and little safety door hook is connected with work high above the ground person, now, described rescue ring is located at large safety door hook one end.While being suspended from midair by described buffer connecting rods after work high above the ground person falls, rescue ring exposes completely, and rescue personnel can hang over rescue in rescue encircles, and utilizes the rescue tool personnel that will fall to be withdrawn into safety area, convenient and swift, safe.
Buffer connecting rods of the present utility model can be even multichain form of single stranded form, double chain form.Described single stranded form refers to, each one of described buffer strip, auxiliary suspender belt and external jacket, two of safety door hooks, described auxiliary suspender belt two ends are affixed with a safety door hook respectively, form strand buffer unit, when use, two safety door hooks are connected with fixture and work high above the ground person's health respectively; Described is double-chain, refers to each two of described auxiliary suspender belt, buffer strip and external jacket, three of safety door hooks, and two auxiliary suspender belts are affixed away from one end and the same safety door hook of rescue ring, and the other end is affixed with another two safety door hooks respectively.When use, share safety door hook and be connected with work high above the ground person's health, another two safety door hooks are connected with fixture, in the time of needs shift position, can successively move the safety door hook being connected with fixture, fall in this safety door hook process preventing in movement, cause danger.
Buffer connecting rods described in the utility model is simple in structure, Portable durable, safety and comfort, and compared with prior art, advantage of the present utility model is embodied in:
1, shock-absorbing capacity is good.The absorption to the kinetic energy that falls is strengthened in the strong and classification of buffer strip extensibility of the present utility model gradually; the impulsive force acting on the person's of falling health is obviously cushioned; reach moment maximum impact force and be less than the effect of 5KN; can there is not again rebound phenomena the personnel that fall are caused to secondary injury; in the protection person of falling safety, the misery that the tractive that reduces to fall causes.
2, light weight is durable.The more existing like product of buffer connecting rods of the present utility model alleviates about 1kg weight, work high above the ground person is carried more light; In this device, each junction all adopts abrasionproof design, reduces the wearing and tearing that its Reusability causes, and has extended service life.
3, simple in structure.Buffer connecting rods of the present utility model is simple and reasonable, durable in use.
4, easy to use.Buffer connecting rods of the present utility model, entirety is even, soft, in use procedure, be convenient to mobile, smoothly, smooth, do not tie a knot.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model integral type buffer connecting rods;
Fig. 2 is the another kind of structural representation of the utility model integral type buffer connecting rods.
Reference numeral:
The folding cover of the auxiliary suspender belt 4-external jacket 5-of 1-safety door hook 2-buffer strip 3-
6-long-fiber bundle 7-short fiber bundle 8-wearing ring 9-rescue ring 10-protective sleeve
11-wearing bush 12-end socket
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
Embodiment 1
As shown in Fig. 1 (structural representation of the utility model integral type buffer connecting rods), the buffer connecting rods of the present embodiment is the strand integral type buffer connecting rods of 1.5 meters of specifications, comprises safety door hook 1, buffer strip 2, auxiliary suspender belt 3 and external jacket 4; Described auxiliary suspender belt 3 two ends are affixed with described safety door hook 1 respectively, and fixing position is provided with folding cover 5; Described buffer strip 2 is ring-type, is made up of fibre bundle 6 and short bundle fiber 7, and this buffer strip 2 is set in the folding cover 5 at auxiliary suspender belt 3 two ends; Described external jacket 4 is wrapped in described buffer strip 2 and the outside of auxiliary suspender belt 3, and its two ends and auxiliary suspender belt 3 are affixed.Wherein, the length of described auxiliary suspender belt 3 is 3.9 meters, and the length of fibre bundle 6 is 115 centimetres, and short bundle fiber 7 length are 90 centimetres, and fibre bundle 6 is 340 circles, and short bundle fiber 7 is 140 circles.
On described folding cover 5, be arranged with wearing ring 8, described buffer strip 2 is connected with folding cover 5 by this wearing ring 8.This wearing ring 8 is provided with large and small two arc grooves, and described fibre bundle 6 is inserted in big groove, and short bundle fiber 7 is inserted in little groove, is fastened with the fibre bundle 6 of wearing ring 8 contact portions, short bundle fiber 7 use adhesive tapes.This fibre bundle 6, short bundle fiber 7 outsides are respectively equipped with protective sleeve 10, and the running-on of this protective sleeve 10 is fixed with adhesive tape.
Totally two of above-mentioned safety door hooks 1, small one and large one, wherein large safety door hook is connected with fixture, and little safety door hook is connected with work high above the ground person's health; Described auxiliary suspender belt 3 is provided with wearing bush 11 with safety door hook 1 junction, after running through safety door hook 1, one end of auxiliary suspender belt 3 turns back, termination is affixed with the another two sections of auxiliary suspender belts 3 that overlap, realize affixed with safety door hook 1 and form folding cover 5, described wearing bush 11 is set on auxiliary suspender belt 3 and every between auxiliary suspender belt 3 and safety door hook 1; This auxiliary suspender belt 3 is provided with rescue ring 9 near one end of large safety door hook, and this rescue ring 9 is positioned at folding cover 5 belows, and this auxiliary suspender belt 3 is provided with end socket 12 with described external jacket fixing position.
When use, large safety door hook is connected with fixture, little safety door hook is connected with work high above the ground person's health, moves large safety door hook with operating position.Once fall, external jacket 4 disconnects under powerful External Force Acting with junction and the end socket 12 of auxiliary suspender belt 3, short bundle fiber 7 in buffer strip 2 and fibre bundle 6 first stressed stretchings are strengthened gradually absorption and are fallen kinetic energy until stop falling, if buffer strip 2 fails to absorb completely the kinetic energy that falls, when it is stretched to when assisting suspender belt 3 isometric, three's acting in conjunction is until stop falling.Rescue personnel can hang over rescue by rescue and encircle in 9, utilizes the rescue tool personnel that will fall to be withdrawn into home.
As shown in Fig. 1 (structural representation of the utility model integral type buffer connecting rods), the buffer connecting rods of the present embodiment is the strand buffer connecting rods of 1.8 meters of specifications, the difference of this device and embodiment 1 is: wherein, the length of described auxiliary suspender belt 3 is 4.4 meters, the length of fibre bundle 6 is 135 centimetres, short bundle fiber 7 length are 115 centimetres, and fibre bundle 6 is 350 circles, and short bundle fiber 7 is 130 circles.
Embodiment 3
As shown in Fig. 2 (the another kind of structural representation of the utility model integral type buffer connecting rods), the buffer connecting rods of the present embodiment is the double-stranded integral type buffer connecting rods of 1.5 meters of specifications, the difference of this device and embodiment 1 is: each two of described auxiliary suspender belt 3, buffer strip 2 and external jacket 4,1 three of safety door hooks, two is large one little, article two, auxiliary hanging 3 is with affixed away from one end and the little safety door hook of rescue ring 9, and the other end is affixed with two large safety door hooks respectively.Wherein, the length of described auxiliary suspender belt 3 is 3.7 meters, and the length of fibre bundle 6 is 105 centimetres, and short bundle fiber 7 length are 95 centimetres, and fibre bundle 6 is 360 circles, and short bundle fiber 7 is 150 circles.
When use, two large safety door hooks are connected with fixture, little safety door hook is connected with work high above the ground person's health, with operating position mobile large safety door hook one by one.Even if fall in mobile a certain large safety door hook process, also also have another large safety door hook to be connected with fixture, can not meet accident.
Embodiment 4
As shown in Fig. 2 (the another kind of structural representation of the utility model integral type buffer connecting rods), the buffer connecting rods of the present embodiment is the double-stranded integral type buffer connecting rods of 1.8 meters of specifications, the difference of this device and embodiment 3 is: wherein, the length of described auxiliary suspender belt 3 is 4 meters, the length of fibre bundle 6 is 145 centimetres, short bundle fiber 7 length are 115 centimetres, and fibre bundle 6 is 380 circles, and short bundle fiber 7 is 170 circles.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present utility model; and be not used in limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an integral type buffer connecting rods, is characterized in that, this buffer connecting rods comprises safety door hook, buffer strip, auxiliary suspender belt and external jacket; Described auxiliary suspender belt two ends are affixed with described safety door hook respectively, and fixing position is provided with folding cover; Described buffer strip is ring-type, is made up of fibre bundle and short bundle fiber, and this buffer strip is set in the folding cover at auxiliary suspender belt two ends; Described external jacket is wrapped in described buffer strip and the outside of auxiliary suspender belt, and its two ends and auxiliary suspender belt are affixed; The length of described auxiliary suspender belt is 2.5～4 times of described fibre bundle length.
2. buffer connecting rods as claimed in claim 1, is characterized in that, long 10～30 centimetres of the shorter bundle fiber of length of described fibre bundle.
3. buffer connecting rods as claimed in claim 1, is characterized in that, described fibre bundle is no less than 340 circles, and described short bundle fiber is no less than 130 circles.
4. buffer connecting rods as claimed in claim 1, is characterized in that, described folding putting is arranged with wearing ring, and described buffer strip is connected with folding cover by this wearing ring.
5. buffer connecting rods as claimed in claim 4, is characterized in that, described wearing ring is provided with two grooves.
6. buffer connecting rods as claimed in claim 1, is characterized in that, one end of described auxiliary suspender belt is provided with rescue ring.
7. buffer connecting rods as claimed in claim 1, is characterized in that, described buffer strip outside is provided with protective sleeve.
8. buffer connecting rods as claimed in claim 1, is characterized in that, described auxiliary suspender belt and safety door hook junction are provided with wearing bush; Described external jacket and this auxiliary suspender belt fixing position are provided with end socket.
9. buffer connecting rods as claimed in claim 1, is characterized in that, this buffer connecting rods comprises each one of buffer strip, auxiliary suspender belt and external jacket, two of safety door hooks, and described auxiliary suspender belt two ends are affixed with a safety door hook respectively.
10. buffer connecting rods as claimed in claim 1, it is characterized in that, described buffer strip, auxiliary suspender belt and external jacket have respectively two, and described safety door hook has three, article two, auxiliary suspender belt is affixed away from one end and the same safety door hook of rescue ring, and the other end is affixed with another two safety door hooks respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746857.9U CN203634684U (en) | 2013-11-22 | 2013-11-22 | Integrated buffer connecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746857.9U CN203634684U (en) | 2013-11-22 | 2013-11-22 | Integrated buffer connecting device |
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| CN203634684U true CN203634684U (en) | 2014-06-11 |
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| CN201320746857.9U Expired - Lifetime CN203634684U (en) | 2013-11-22 | 2013-11-22 | Integrated buffer connecting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267618A (en) * | 2016-10-21 | 2017-01-04 | 上海普英特高层设备股份有限公司 | Safety line energy snubber seat |
| CN110051949A (en) * | 2019-04-29 | 2019-07-26 | 鲁普耐特集团有限公司 | One kind is fallen potential energy absorber and preparation method thereof |
| CN110225783A (en) * | 2016-12-12 | 2019-09-10 | Msa技术有限公司 | Harness with integral type acceptor of energy |
| CN112279065A (en) * | 2020-11-10 | 2021-01-29 | 国网新疆电力有限公司建设分公司 | Framework hoisting sling protection mold and manufacturing method thereof |
| CN113046889A (en) * | 2021-03-22 | 2021-06-29 | 东华大学 | Force increasing type buffer bag for falling protection and manufacturing method |
| CN113413556A (en) * | 2021-07-30 | 2021-09-21 | 中国二冶集团有限公司 | Auxiliary device for high-altitude rope tying |
-
2013
- 2013-11-22 CN CN201320746857.9U patent/CN203634684U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267618A (en) * | 2016-10-21 | 2017-01-04 | 上海普英特高层设备股份有限公司 | Safety line energy snubber seat |
| CN110225783A (en) * | 2016-12-12 | 2019-09-10 | Msa技术有限公司 | Harness with integral type acceptor of energy |
| CN110225783B (en) * | 2016-12-12 | 2021-08-17 | Msa技术有限公司 | Harness with integral energy absorber |
| CN110051949A (en) * | 2019-04-29 | 2019-07-26 | 鲁普耐特集团有限公司 | One kind is fallen potential energy absorber and preparation method thereof |
| CN112279065A (en) * | 2020-11-10 | 2021-01-29 | 国网新疆电力有限公司建设分公司 | Framework hoisting sling protection mold and manufacturing method thereof |
| CN113046889A (en) * | 2021-03-22 | 2021-06-29 | 东华大学 | Force increasing type buffer bag for falling protection and manufacturing method |
| CN113046889B (en) * | 2021-03-22 | 2022-03-29 | 东华大学 | Force increasing type buffer bag for falling protection and manufacturing method |
| CN113413556A (en) * | 2021-07-30 | 2021-09-21 | 中国二冶集团有限公司 | Auxiliary device for high-altitude rope tying |
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Assignee: Assad (Langfang) High-altitude Equipment Co.,Ltd. Assignor: SAIKAER (BEIJING) INDUSTRIAL TECHNOLOGY Co.,Ltd. Contract record no.: X2023990000151 Denomination of utility model: An integrated buffer connection device Granted publication date: 20140611 License type: Exclusive License Record date: 20230116 |
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