CN202263317U - Safety belt - Google Patents
Safety belt Download PDFInfo
- Publication number
- CN202263317U CN202263317U CN2011203876315U CN201120387631U CN202263317U CN 202263317 U CN202263317 U CN 202263317U CN 2011203876315 U CN2011203876315 U CN 2011203876315U CN 201120387631 U CN201120387631 U CN 201120387631U CN 202263317 U CN202263317 U CN 202263317U
- Authority
- CN
- China
- Prior art keywords
- eccentric shaft
- frame
- safety belt
- friction roller
- cassette holder
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a safety belt, which comprises a safety belt body (1). The safety belt is characterized in that: the safety belt further comprises a belt cabin (2) provided with a first frame (2.1) and a second frame (2.2), a first eccentric shaft (3.1), a second eccentric shaft (3.2), a first friction roller (4.1) and a second friction roller (4.2); the maximal external diameter of the first friction roller (4.1) after being sleeved on the first eccentric shaft (3.1) is greater than the distance between the first frame (2.1) and the second frame (2.2); the maximal outer diameter of the second friction roller (4.2) after being sleeved on the second eccentric shaft (3.2) is greater than the distance between the first frame (2.1) and the second frame (2.2); and the first eccentric shaft (3.1) and the second eccentric shaft (3.2) can be rotationally connected to the belt cabin (2). The safety belt can be suspended at a low position and used at a high position, and has good safety performance, and a process of building a temporary suspension point can be omitted.
Description
Technical field:
The utility model relates to the safety belt of the high usefulness of a kind of low extension.
Background technology:
The effect of safety belt: safety belt can prevent shock of a fall injury in the ascend operation, helps the operating personnel to overcome the work high above the ground feared state of mind.The safety belt instructions for use: allly all be regarded as high-rise working locating operation 2 meters away from the datum level that falls more than be, high-rise working must be done anti-falling protection; Lack in the operating environment of anti-fall measure protection, it must be hanging safety belt that operation height surpasses 1.5 meters; Safety belt must be to hang on the firm member, and high the extension hanged down usefulness, forbids low high the using of hanging.
We can analyze from above-mentioned notion: the use of safety belt has limited the free falling injury that the end user exceeds 1.5 meters, and the maximum shock of a fall of end user does not allow above 2 meters; Safety belt fixedly be that must not to be lower than health be hanging point to hanging point; Two is that the free belt length beyond the vertical line distance can not be greater than 1.5 meters between hanging point; Maximum shock of a fall under the safety belt service condition occurs in the flat job state of hanging flat usefulness of safety belt at present.
At present in the scope of operation in some narrow places such as setting up on scaffold, the inspection of lead wire and earth wire cabling, steel tube tower cross-arm, electric substation's framework, main transformer top and the crane beam; Top does not have safety belt fixed suspension point; On some scope of operations wherein even can not to be provided be hanging point temporarily; In these occasion operations, tend to safety belt " the low height of hanging is used ", infraction of regulations.
" low hang high with " of safety belt refers to it fixedly is that hanging point is below the horizontal plane of hanging point at health, and general system extension position can be in all that position level face and health are between the hanging point at the bottom of the sole.At this we to set safety belt " low hang high with " violation phenomenon be the situation under the worst-case, promptly fixedly be that hanging point and sole bottom are on same horizontal plane.
Current also have the safety belt buffers packet that on operation field, occurs to realize that through the polyamide fibre line of tearing stitching the prolongation of attack time reduces the size of impulsive force.Because buffers packet can not quantitatively realize the time expand value,, can not really realize high the using of low extension of safety belt so can only use in the occasion of the normal use of safety belt at present as a kind of auxiliary equipment.
The utility model content
The technical problem that the utility model will solve is, provide a kind of ability low hang high with, saved the safety belt that to set up be hanging point temporarily, security performance is good.
The technical scheme of the utility model is; A kind of safety belt with following structure is provided; Comprise the safety belt body, first friction roller and second friction roller that it also comprises the cassette holder that is provided with first frame and second frame, first eccentric shaft, second eccentric shaft, is processed by elastomeric material; Said first friction roller is socketed in maximum outside diameter behind first eccentric shaft greater than the distance between first frame and second frame; Said second friction roller is socketed in maximum outside diameter behind second eccentric shaft greater than the distance between first frame and second frame; Said first eccentric shaft and second eccentric shaft are rotatably connected on cassette holder; And first eccentric shaft and second eccentric shaft laterally arrange; Said safe belt body is walked around first friction roller, second frame, second friction roller along the medial surface of first frame, one end, and the medial surface of the warp first frame other end stretches out.
The body of said friction roller for processing by silica gel.
Said first eccentric shaft and second eccentric shaft are rotatably connected and on cassette holder, are meant, said cassette holder is provided with two pairs of long lumbar holes, and the two ends of said first eccentric shaft and second eccentric shaft are rotatable respectively to be installed in a pair of long lumbar hole wherein.
After adopting said structure, the utility model compared with prior art has the following advantages: safety belt body, friction roller, first frame and the second frame inwall in the folding cassette holder tightly press together each other, also are installed with eccentric shaft in the friction roller.After the eccentric shaft power of being hit is sheared; The safety belt that overlays in the cassette holder loses locking; Will be extracted cassette holder by shock of a fall power, the damping action of frictional force can be let out equally and carried a part of shock of a fall power, prolongs working time of collision simultaneously; Make that being carried in the person's of falling impulsive force on one's body further reduces, and has protected the person's of falling safety.Through shearing let out carry with frictional damping after, remaining shock of a fall power is subdued greatly, satisfies the limit range that human body bears fully, also just can have been born from body by the person of falling.
The conclusion that we obtain from above analysis is exactly: substep is let out and is carried the increment load; Prolong working time of collision; Just can satisfy the effect that the low high time spent person of falling of extension of safety belt only bears normal shock of a fall power, save like this that to set up be that hanging point, security performance are good temporarily.
Description of drawings
Accompanying drawing 1 is the generalized section of the safety belt of the utility model.
Accompanying drawing 2 is sketch mapes of cassette holder of the safety belt of the utility model.
Accompanying drawing 3 is friction roller generalized sections of the safety belt of the utility model.
Accompanying drawing 4 is schematic top plan view of Fig. 3.
Shown in the figure, 1, the safety belt body, 2, cassette holder, 2.1, first frame, 2.2, second frame, 2.3, long lumbar hole, 3.1, first eccentric shaft, 3.2, second eccentric shaft, 4.1, first friction roller, 5.2, second friction roller.
The specific embodiment
Be described further below in conjunction with the safety belt of accompanying drawing the utility model.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The safety belt of the utility model; Comprise safety belt body 1, first friction roller 4.1 and second friction roller 4.2 that it also comprises the cassette holder 2 that is provided with first frame 2.1 and second frame 2.2, first eccentric shaft 3.1, second eccentric shaft 3.2, is processed by elastomeric material; Said first friction roller 4.1 is socketed in maximum outside diameter behind first eccentric shaft 3.1 greater than the distance between first frame 2.1 and second frame 2.2; Said second friction roller 4.2 is socketed in maximum outside diameter behind second eccentric shaft 3.2 greater than the distance between first frame 2.1 and second frame 2.2, and the cross section of the interlude of this first eccentric shaft 3.1 and second eccentric shaft 3.2 is oval.Said first eccentric shaft 3.1 and second eccentric shaft 3.2 are rotatably connected on cassette holder 2; And first eccentric shaft 3.1 and second eccentric shaft 3.2 laterally arrange; Said safe belt body 1 is walked around first friction roller 4.1, second frame 2.2, second friction roller 4.2 along the medial surface of first frame, 2.1 1 ends; Medial surface through first frame 2.1 other ends stretches out, and promptly safety belt body 1 stretches into along the medial surface of first frame, 2.1 1 ends, around the periphery of the interior semicircle of first friction roller 4.1; Medial surface along second frame 2.2 after the bending arrives end bending once more; Bending is to the medial surface of second frame 2.2 once more in the other end end of edge second frame 2.2, and around the interior semicircle periphery of second friction roller 4.2, the other end along first frame, 2.1 1 ends after the bending stretches out again.
The body of said friction roller 4 for processing by silica gel.
Said first eccentric shaft 3.1 and second eccentric shaft 3.2 are rotatably connected and on cassette holder 2, are meant; Said cassette holder 2 is provided with two pairs of long lumbar holes 2.3; The two ends of said first eccentric shaft 3.1 and second eccentric shaft 3.2 are rotatable respectively to be installed in a pair of long lumbar hole 2.3 wherein; The two ends of this said first eccentric shaft 3.1 and second eccentric shaft 3.2 are all not cylindrical, and profile is less than the oval section of centre.The centre of this cassette holder 2 also is provided with the faciola hole.
The service condition of safety belt " the low height of hanging is used ":
1) operation blind area: the operation blind area of safety belt " the low height of hanging is used " occurs in 1.5 meters of absolute altitudes---3 meters intervals, and the safeguard protection of falling in the blind area must be solved by other measure;
2) must there be the measure that impacts injury in the process of falling of protecting in the falling guard interval of safety belt " the low height of hanging is used ";
3) back-up protection during safety belt " low hang high with " restrict must not shearing let out carry with frictional damping effect generation before play a protective role;
4) because the low adapter of hanging belongs to engineering goods, and its inner chamber specification is fixed, when the coupling safety belt, must guarantee that the extruding force between safety belt, silica gel friction roller, cassette holder inwall meets the demands through the sized of selecting eccentric shaft for use;
5) in case the low adapter of hanging is had an effect, must change the eccentric shaft that is sheared, simultaneously cassette holder and silica gel friction roller carried out visual examination and size and check and to continue next use.
Claims (3)
1. safety belt; Comprise safety belt body (1), it is characterized in that: first friction roller (4.1) and second friction roller (4.2) that it also comprises the cassette holder (2) that is provided with first frame (2.1) and second frame (2.2), first eccentric shaft (3.1), second eccentric shaft (3.2), is processed by elastomeric material; Said first friction roller (4.1) is socketed in maximum outside diameter behind first eccentric shaft (3.1) greater than the distance between first frame (2.1) and second frame (2.2); Said second friction roller (4.2) is socketed in maximum outside diameter behind second eccentric shaft (3.2) greater than the distance between first frame (2.1) and second frame (2.2); Said first eccentric shaft (3.1) and second eccentric shaft (3.2) are rotatably connected on cassette holder (2); And first eccentric shaft (3.1) and second eccentric shaft (3.2) laterally arrange; Said safe belt body (1) is walked around first friction roller (4.1), second frame (2.2), second friction roller (4.2) along the medial surface of first frame (2.1) one ends, and the medial surface of warp first frame (2.1) other end stretches out.
2. safety belt according to claim 1 is characterized in that: the body of said friction roller (4) for being processed by silica gel.
3. safety belt according to claim 1; It is characterized in that: said first eccentric shaft (3.1) and second eccentric shaft (3.2) are rotatably connected and on cassette holder (2), are meant; Said cassette holder (2) is provided with two pairs of long lumbar holes (2.3), and the two ends of said first eccentric shaft (3.1) and second eccentric shaft (3.2) are rotatable respectively to be installed in a pair of long lumbar hole (2.3) wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203876315U CN202263317U (en) | 2011-10-13 | 2011-10-13 | Safety belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203876315U CN202263317U (en) | 2011-10-13 | 2011-10-13 | Safety belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263317U true CN202263317U (en) | 2012-06-06 |
Family
ID=46154128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203876315U Expired - Fee Related CN202263317U (en) | 2011-10-13 | 2011-10-13 | Safety belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072546A (en) * | 2013-02-20 | 2013-05-01 | 赵颖寅 | Safety belt impact force reducer |
-
2011
- 2011-10-13 CN CN2011203876315U patent/CN202263317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072546A (en) * | 2013-02-20 | 2013-05-01 | 赵颖寅 | Safety belt impact force reducer |
| CN103072546B (en) * | 2013-02-20 | 2015-06-03 | 赵光书 | Safety belt impact force reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20161013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |