CN105079990A - Adjustable descending device - Google Patents
Adjustable descending device Download PDFInfo
- Publication number
- CN105079990A CN105079990A CN201410211075.4A CN201410211075A CN105079990A CN 105079990 A CN105079990 A CN 105079990A CN 201410211075 A CN201410211075 A CN 201410211075A CN 105079990 A CN105079990 A CN 105079990A
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- CN
- China
- Prior art keywords
- spacing hole
- decline
- drop device
- pin shaft
- rope
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
Abstract
The invention provides an adjustable descending device. The adjustable descending device comprises a descending body, a hinged connection pin shaft and a rotating handle. The descending body comprises a hinged end and a descending free end which are oppositely arranged. The descending body is provided with a first limiting hole and at least three rope threading hole. The rotating handle comprises a rotating part and a handle operating part connected with the rotating part. The rotating part is provided with a hanging buckle ring and a second limiting hole. The rotating part is hinged to the hinged end through the hinged connection pin shaft. The first limiting hole and the second limiting hole can at least partially overlap to form an adjustable overlapped region used for containing a rope. When the rope is arranged in the overlapped region in a penetrating manner, tensile force which is exerted on the hanging buckle ring and equal to the gravity of a descending person applies torque to the hinged connection pin shaft, and the torque is increased while the area of the overlapped region is increased and is decreased while the area of the overlapped region is decreased. The adjustable descending device can adjust friction force between the rope and the descending device, fix a human body at high altitude and liberate the two hands.
Description
Technical field
The present invention relates to the device declined from eminence, be specifically related to a kind of adjustable drop device.
Background technology
In the natural calamity such as fire, earthquake, how initiatively hedging, science are saved oneself and effectively pull out, and have become an important problem and a kind of indispensable technical ability.
The operation principle of the drop device of prior art utilizes rope to be located in the number in the hole in drop device to regulate the frictional force between rope and drop device.When human body is in the process declined, hand needs to catch the frictional force between the free end adjustment rope of rope and drop device always, thus controls the speed of human body decline, can not liberate both hands perform other in the air task at height in the process therefore declined.The more important thing is, if people gets a fright in the air at height, human body will unclamp hand by the light of nature, causes the frictional force between rope and drop device to reduce, and likely causes human body accelerate to decline at height and cause casualties in the air.
Summary of the invention
For above-mentioned prior art, An embodiment provides a kind of adjustable drop device.Comprise:
Decline body, comprise the hinged end and decline free end that are oppositely arranged, described decline body has the first spacing hole and at least 3 lacing holes;
Hinging pin shaft; And
Rotary handle, the lever operated portion comprising rotating part and be connected with described rotating part, described rotating part has and buckles ring and the second spacing hole, described rotating part is hinged on described hinged end by described hinging pin shaft, makes the first spacing hole on described decline body and the second spacing hole on described rotary handle can be overlapping with the adjustable overlapping region formed for holding rope at least partly by described rotary handle relative to the pivotable of described decline body;
Wherein, when described rope is located in described overlapping region, buckle pulling force on ring, equal with the gravity of descender described in being applied to and moment is applied to described hinging pin shaft, and described moment increases along with the increase of the area of described overlapping region and reduces along with the reduction of the area of described overlapping region.
Preferably, described at least 3 lacing holes and described first spacing hole are arranged in order along from described decline free end to the direction of described hinged end.
Preferably, described decline body has first longitudinal axis, described lever operated portion has second longitudinal axis, when described rope is located in described overlapping region, angle between described first longitudinal axis and second longitudinal axis is greater than 0 ° and is less than 60 °, and described pulling force makes described lever operated portion rotate to the direction away from described decline free end.
Preferably, described lever operated portion comprises handle free end, and described handle free end is greater than the distance of application point to described hinging pin shaft of described pulling force to the distance of described hinging pin shaft.
Preferably, the sidewall of described decline body has groove, and described groove defines the spatial accommodation of the part for holding described rotary handle.
Preferably, described decline body is plate-like structure, and described rotary handle is plate-like structure, and the lateral wall of described decline body has two side planes be parallel to each other, and described groove is between described two side planes.
Preferably, described first spacing hole and described second spacing hole are of similar shape, and described first spacing hole can be switched to completely overlapping with described second spacing hole.
Preferably, described at least 3 lacing holes, described first spacing hole and described second spacing hole are the equal circular hole in aperture, and the projection on the direction of vertical described side plane of described at least 3 lacing holes, described first spacing hole and described second spacing hole be all circle respectively.
Preferably, described decline body is formed in one, and described rotary handle is formed in one.
Adjustable drop device of the present invention can regulate the frictional force between rope and drop device, thus regulates the speed that human body declines.Moreover, when human body unclamps suddenly rope in the air at height, automatically human body can also be fixed on high aerial, and liberate the both hands of decline personnel.
Accompanying drawing explanation
Referring to accompanying drawing, embodiments of the present invention is further illustrated, wherein:
Fig. 1 is the front view of the adjustable drop device according to first embodiment of the invention.
Fig. 2 is that the adjustable drop device shown in Fig. 1 is from the schematic perspective view viewed from rear, right side.
Fig. 3 is the complete overlapping schematic diagram of spacing hole in the adjustable drop device shown in Fig. 1.
Fig. 4 is the partly overlapping schematic diagram of spacing hole in the adjustable drop device shown in Fig. 1.
Fig. 5 is the front view of the adjustable drop device according to second embodiment of the invention.
Fig. 6 is the front view of the adjustable drop device according to third embodiment of the invention.
Fig. 7 is the front view of the adjustable drop device according to four embodiment of the invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing, by specific embodiment, the present invention is described in more detail.
Fig. 1 is the front view of the adjustable drop device according to present pre-ferred embodiments.As shown in Figure 1, adjustable drop device 10 comprises decline body 11, rotary handle 12 and hinging pin shaft 13.Rotary handle 12 is hinged on decline body 11 by hinging pin shaft 13.
Decline body 11 is formed in one, it has the hinged end 115 and decline free end 116 that are oppositely arranged, the tabular that decline body 11 is rectangle substantially, there is longitudinal axis L1, on from decline free end 116 to the direction of hinged end 115, decline body 11 is arranged in sequence with lacing hole 111, lacing hole 112, lacing hole 113 and spacing hole 114.Hinging pin shaft 13 is arranged on hinged end 115.Wherein lacing hole 111, lacing hole 112, lacing hole 113 and spacing hole 114 are circular hole and aperture is equal alternatively, namely all define columniform spatial accommodation respectively, be provided for rope (not shown in figure 1) and pass from columniform spatial accommodation.
Decline body 11 is in plate-like structure, the lateral wall of decline body 11 has two side planes 117,118 be parallel to each other, wherein figure 1 illustrate one of them side plane 117, Fig. 2 be the adjustable drop device 10 shown in Fig. 1 from the schematic perspective view viewed from rear, right side, Fig. 2 shows another side plane 118 be parallel to each other with side plane 117.The right side wall (left side wall of the side plane 118 namely shown in Fig. 2) of the side plane 117 of adjustable drop device 10 is provided with groove 119, and groove 119 is between side plane 117 and side plane 118.Groove 119 defines one and is substantially cuboid and the spatial accommodation extending to hinged end 115 from decline free end 116.Fig. 1 is the front view of adjustable drop device 10, figure 1 illustrates lacing hole 111, lacing hole 112, lacing hole 113, spacing hole 114 and spacing hole 1212 for circular.
The plate-like structure that rotary handle 12 is formed in one, specifically shown in Figure 1, the lever operated portion 122 comprising rotating part 121 and be connected with rotating part 121, rotating part 121 is hinged on hinged end 115 by hinging pin shaft 114, thus rotary handle 12 can be rotated around hinging pin shaft 13.At rotary handle 12 around in hinging pin shaft 13 rotary course, a part for rotary handle 12 can be arranged in groove 119.Rotating part 121 comprises and buckles ring 1211 and spacing hole 1212.Buckling ring 1211, for being connected to descender by such as buckling other jockeys, the shape of any suitable can be had.Spacing hole 1212 is circular port, and with spacing hole 114, there is identical aperture alternatively, wherein the center of circle of spacing hole 1212 equals the distance of the center of circle to hinging pin shaft 13 of spacing hole 114 to the distance of hinging pin shaft 13, therefore in the process rotated around hinging pin shaft 13 when rotary handle 12, spacing hole 1212 and spacing hole 114 can be completely overlapping, can partly overlap, can be completely not overlapping yet.Spacing hole 1212 wherein shown in Fig. 1 and spacing hole 114 are completely not overlapping, namely do not have overlapping region.Spacing hole 1212 shown in Fig. 2 and spacing hole 114 partly overlap, and define overlapping region 14.Therefore rotating part 121 and decline body 11 can limit the adjustable overlapping region 14 of a size, and wherein overlapping region 14 is for holding the rope be used in combination with adjustable drop device 10.
Lever operated portion 122 has handle free end 1221, the tabular that lever operated portion 122 is rectangle substantially, there is longitudinal axis L2, when human body hang over buckle on ring 1211 time, buckle ring 1211 be subject to one vertically downward, with the equal-sized pulling force effect of human bady gravitational, the application point of pulling force is less than to the distance of hinging pin shaft 13 distance that handle free end 1221 arrives hinging pin shaft 13.When the overlapping region 14 of spacing hole 1212 and spacing hole 114 forming section, angle theta between longitudinal axis L1 and longitudinal axis L2 is 30 °, and angle theta reduces along with the area increase of overlapping region 14, and increase along with the area reduction of overlapping region 14, in other examples, the angle theta preferable range between longitudinal axis L1 and longitudinal axis L2 is 0 ° of < θ < 60 °.A hand can be adopted like this to be held in the hand in lever operated portion 122 and decline body 11, to facilitate descender to operate.
In other examples, when spacing hole 1212 and spacing hole 114 form overlapping region 14, the scope of the angle theta between longitudinal axis L1 and longitudinal axis L2 can be 60 °≤θ < 180 °, adopts this rotary handle in decline process, usually need employing two hands to change the relative position of lever operated portion and decline free end 116.
Fig. 3 is the complete overlapping schematic diagram of spacing hole in the adjustable drop device shown in Fig. 1.What the Reference numeral 141 wherein in Fig. 3 represented is the overlapping region 141 that spacing hole 114 and spacing hole 1212 overlap to form completely.Before decreasing, rope 1 is worn and mistake successively from lacing hole 111, lacing hole 112 and lacing hole 113, finally passes from overlapping region 141.When human body hang over buckle on ring 1211 time, buckle the moment of pulling force to hinging pin shaft 13 that ring 1211 is subject to make rotary handle 12 clockwise (direction in Fig. 3 and Fig. 4 view) rotate to state shown in Fig. 4, as shown in Figure 4, spacing hole 114 and spacing hole 1212 partly overlap and form relatively little overlapping region 142, overlapping region 142 makes rope 1 significantly increase with the frictional force of decline body 11, compared with the state shown in Fig. 3, now pulling force reduces the moment of hinging pin shaft 13.When human body catches rope 1 without hand, can by human-body safety be fixed on high aerial, thus can the both hands of liberate people.And can human body be protected from the aerial landing of height when staff unclamps suddenly rope 1.
As shown in Figure 4, when human body is in the process declined, with palm when held decline body 11 and lever operated portion 122, the grip force of palm has moment to hinging pin shaft 13, by regulating direction of rotation and the anglec of rotation in the lever operated portion 122 of size adjustment of grip force, thus control the size of overlapping region 142, regulate the frictional force between rope 1 and decline body 11 further, the final speed realized human body declines controls.When with holding tight lever operated portion 122 to when rotating near the direction of decline free end 116, the part in lever operated portion 122 is arranged in groove 119, groove 119 pairs of handle operating portions 122 play position-limiting action, avoid lever operated portion 122 and reduce to the excessive area of overlapping region 142 that causes of angle rotated near the direction of decline body 11.Handle free end 1221 in the present embodiment is greater than pulling force application point to the distance of hinging pin shaft 13 can make staff adopt less grip and rotatable handgrip operating portion 122 to the distance of hinging pin shaft 13, thus realizes convenient and strength-saving.
In adjustable drop device 10 of the present invention, when rope 1 is located in overlapping region 141 or overlapping region 142, be applied to and buckle pulling force on ring 1211 not by hinging pin shaft 13, namely pulling force produces moment always, this moment is tended to overlapping region is reduced, make lever operated portion 122 rotate to the direction away from decline free end 116 simultaneously, like this under the effect of pulling force, will the frictional force between rope 1 and decline body 11 be increased.When needing to reduce the frictional force between rope 1 and decline body 11, can by grasping decline body 11 and lever operated portion 122, make lever operated portion 122 close to decline free end 116 by the grip force of hand, therefore in use, a hand can conveniently control frictional force and decrease speed.
According to operation principle and the mode of above-mentioned adjustable drop device 10, adjustable drop device 10 of the present invention with rope 1 with the use of process in, namely when rope 1 is located in overlapping region 142, be applied to the pulling force buckled on ring 1211, to hinging pin shaft 13, there is moment, so all the time have one for regulating the moment of the frictional force between rope 1 and decline body 11, and this moment increases along with the increase of the area of overlapping region 142, reduces along with the reduction of the area of overlapping region 142.Those skilled in the art is known, should comprehensively determine that hinging pin shaft 13 is to the distance of position being applied to the pulling force buckled on ring 1211 according to the parameter such as frictional force, the size of limiting hole, the size of overlapping region of the cross section of the body weight of decline human body, shearing force that selected rope can bear and rope, rope and lacing hole, therefore, the present invention does not limit the design parameters such as the position of shape and structure, the relatively hinging pin shaft 13 buckling ring 1211.
In other examples, decline body 11 and rotary handle 12 can also be other arbitrary shapes, and such as decline body 11 can not have groove 119 for the part holding rotary handle 12.Lacing hole 111 ~ 113 and spacing hole 114 can be the holes of arbitrary shape.Spacing hole 114 and spacing hole 1212 also can partly overlap (namely can not be completely overlapping).
In other embodiments of the invention, the body weight of the object or person body that the number that lacing hole is minimum can decline as required determines to have at least 3 lacing holes.Lacing hole 111 ~ 113 and spacing hole 114 can also be arranged along from decline free end 116 to the arrangement of the direction of hinged end 115 in more in addition.
Fig. 5 is the front view of the adjustable drop device 20 according to second embodiment of the invention.Itself and Fig. 1 are substantially identical, difference is, when rope is located in overlapping region 24, lever operated portion 222, hinging pin shaft 23, and the position (not shown) being applied to the pulling force buckled on ring 2211 is positioned at the same side of the longitudinal axis L21 of decline body 21.In other examples, hinging pin shaft 23 can be positioned on longitudinal axis L21.
Fig. 6 is the front view of the adjustable drop device 30 according to third embodiment of the invention.Itself and Fig. 1 are substantially identical, difference is, when rope is located in overlapping region 34, the position (not shown) being applied to the pulling force buckled on ring 3211 is positioned at the side of hinging pin shaft 33 (being left side shown in Fig. 6), lever operated portion 322 is positioned at the opposite side (being right side shown in Fig. 6) of decline free end 316, therefore being applied to the pulling force buckled on ring 3211 makes lever operated portion 322 rotate to the direction near decline free end 316, the area of overlapping region 34 is reduced and increases the frictional force between rope and adjustable drop device 30.Adopt adjustable drop device 30 in decline process, need the anglec of rotation utilizing two lever operated portions 322 of hand control to the direction away from decline free end 316, thus regulate the frictional force between rope and adjustable drop device 30.
Fig. 7 is the front view of the adjustable drop device 40 according to four embodiment of the invention.Itself and Fig. 6 are substantially identical, and difference is, the angle theta of the longitudinal axis L41 of the decline body 41 shown in Fig. 7 and the longitudinal axis L42 in lever operated portion 422
4it is 110 °.In other examples, θ
4scope can be 60 °≤θ
4< 180 °.
Although the present invention is described by preferred embodiment, but the present invention is not limited to embodiment as described herein, also comprises done various change and change without departing from the present invention.
Claims (9)
1. an adjustable drop device, is characterized in that, comprising:
Decline body, comprise the hinged end and decline free end that are oppositely arranged, described decline body has the first spacing hole and at least 3 lacing holes;
Hinging pin shaft; And
Rotary handle, the lever operated portion comprising rotating part and be connected with described rotating part, described rotating part has and buckles ring and the second spacing hole, described rotating part is hinged on described hinged end by described hinging pin shaft, makes the first spacing hole on described decline body and the second spacing hole on described rotary handle can be overlapping with the adjustable overlapping region formed for holding rope at least partly by described rotary handle relative to the pivotable of described decline body;
Wherein, when described rope is located in described overlapping region, buckle pulling force on ring, equal with the gravity of descender described in being applied to and moment is applied to described hinging pin shaft, and described moment increases along with the increase of the area of described overlapping region and reduces along with the reduction of the area of described overlapping region.
2. adjustable drop device according to claim 1, is characterized in that, described at least 3 lacing holes and described first spacing hole are arranged in order along from described decline free end to the direction of described hinged end.
3. adjustable drop device according to claim 2, it is characterized in that, described decline body has first longitudinal axis, described lever operated portion has second longitudinal axis, when described rope is located in described overlapping region, angle between described first longitudinal axis and second longitudinal axis is greater than 0 ° and is less than 60 °, and described pulling force makes described lever operated portion rotate to the direction away from described decline free end.
4. adjustable drop device according to claim 3, is characterized in that, described lever operated portion comprises handle free end, and described handle free end is greater than the distance of application point to described hinging pin shaft of described pulling force to the distance of described hinging pin shaft.
5. adjustable drop device according to any one of claim 1 to 4, is characterized in that, the sidewall of described decline body has groove, and described groove defines the spatial accommodation of the part for holding described rotary handle.
6. adjustable drop device according to claim 5, it is characterized in that, described decline body is plate-like structure, and described rotary handle is plate-like structure, the lateral wall of described decline body has two side planes be parallel to each other, and described groove is between described two side planes.
7. adjustable drop device according to claim 6, is characterized in that, described first spacing hole and described second spacing hole are of similar shape, and described first spacing hole can be switched to completely overlapping with described second spacing hole.
8. adjustable drop device according to claim 6, it is characterized in that, described at least 3 lacing holes, described first spacing hole and described second spacing hole are the equal circular hole in aperture, and the projection on the direction of vertical described side plane of described at least 3 lacing holes, described first spacing hole and described second spacing hole be all circle respectively.
9. adjustable drop device according to any one of claim 1 to 4, is characterized in that, described decline body is formed in one, and described rotary handle is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211075.4A CN105079990A (en) | 2014-05-19 | 2014-05-19 | Adjustable descending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211075.4A CN105079990A (en) | 2014-05-19 | 2014-05-19 | Adjustable descending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105079990A true CN105079990A (en) | 2015-11-25 |
Family
ID=54561882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410211075.4A Pending CN105079990A (en) | 2014-05-19 | 2014-05-19 | Adjustable descending device |
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| Country | Link |
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| CN (1) | CN105079990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029360A (en) * | 2017-03-27 | 2017-08-11 | 张宇霆 | From rate controlling high-rise escape apparatus |
| CN109646828A (en) * | 2019-01-18 | 2019-04-19 | 浙江冰峰户外用品有限公司 | A kind of drop device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576248A (en) * | 1984-05-02 | 1986-03-18 | Dan Marom | Rescue and glider device |
| US20100236863A1 (en) * | 2009-03-23 | 2010-09-23 | Schwarzenbach Peter M | Auto-lock compact rope descent device |
| CN203915804U (en) * | 2014-05-19 | 2014-11-05 | 步兵 | Adjustable drop device |
-
2014
- 2014-05-19 CN CN201410211075.4A patent/CN105079990A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576248A (en) * | 1984-05-02 | 1986-03-18 | Dan Marom | Rescue and glider device |
| US20100236863A1 (en) * | 2009-03-23 | 2010-09-23 | Schwarzenbach Peter M | Auto-lock compact rope descent device |
| CN203915804U (en) * | 2014-05-19 | 2014-11-05 | 步兵 | Adjustable drop device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029360A (en) * | 2017-03-27 | 2017-08-11 | 张宇霆 | From rate controlling high-rise escape apparatus |
| CN109646828A (en) * | 2019-01-18 | 2019-04-19 | 浙江冰峰户外用品有限公司 | A kind of drop device |
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Application publication date: 20151125 |
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