CN208710408U - A kind of bellows - Google Patents
A kind of bellows Download PDFInfo
- Publication number
- CN208710408U CN208710408U CN201720818811.1U CN201720818811U CN208710408U CN 208710408 U CN208710408 U CN 208710408U CN 201720818811 U CN201720818811 U CN 201720818811U CN 208710408 U CN208710408 U CN 208710408U
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- China
- Prior art keywords
- bellows
- angle
- wave crest
- head end
- air pressure
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- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 230000001154 acute effect Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000012549 training Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001145 finger joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010004954 Birth trauma Diseases 0.000 description 1
- 208000019743 Cranial nerve injury Diseases 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 208000008238 Muscle Spasticity Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 208000001738 Nervous System Trauma Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 206010008118 cerebral infarction Diseases 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000005057 finger movement Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 208000018198 spasticity Diseases 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- Rehabilitation Tools (AREA)
Abstract
The utility model discloses a kind of bellows, the bellows is by the pipe of several wave crests and the alternate inner hollow connected into of several troughs, boss is provided among the end face of the end of the bellows, the first segment of the bellows head end and the final section of end are wave crests, the width of the final section wave crest of the first segment wave crest and end of head end is all larger than the thickness of bellows, when preventing the air pressure in the bellows from reducing, the end of the bellows and head end invagination.In this way, the bellows is wanted to cooperate with other joint recoverings movement auxiliary member, by the air pressure in control bellows, while forcing bellows to carry out compression or extensional motion, patient articular is driven to move, patient is helped to carry out rehabilitation training.
Description
Technical field
The utility model relates to joint motions ancillary technique fields, and in particular to a kind of bellows.
Background technique
Clinic confirms, after limbs of patient operation or during the early rehabilitation of Cranial nerve injury as birth trauma and spontaneous recovery, implements to connect
Continuous passive movement can compensate the deficiency of patient's active movement, increase its limb activity degree, while reducing corresponding complication.Separately
Outside, exist in current patient since the case where central nervous system injuries such as cerebral infarction cause finger paralysis and contracture is inferior, it is this
In the case of, if the finger of patient can be assisted to move, the resume speed of patient's finger can be increased.
In view of the above drawbacks, the utility model creator obtains originally practical new finally by prolonged research and practice
Type.
Utility model content
To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is: providing a kind of bellows, the ripple
Pipe is set among the end face of the end of the bellows by the pipe of several wave crests and the alternate inner hollow connected into of several troughs
It is equipped with boss, the first segment of the bellows head end and the final section of end are wave crest, the first segment wave crest of head end and end
The width of the final section wave crest at end is all larger than the thickness of the bellows, when preventing the air pressure in the bellows from reducing, institute
State end and the head end invagination of bellows.
Preferably, being provided with chamfering on the end face of the end of the bellows, prevent the air pressure in the bellows from reducing
When, the end of the bellows and head end invaginate.
Preferably, being provided with arc surface on the end face of the head end of the bellows, the air pressure drop in the bellows is prevented
When low, the end of the bellows and head end invagination.
Preferably, the apex angle of the bellows wave crest and the base angle of trough are equal.
Preferably, the compression performance of the bellows is greater than tensile property when the apex angle of the bellows wave crest is acute angle.
Preferably, the compression performance of the bellows is less than tensile property when the apex angle of the bellows wave crest is obtuse angle.
Compared with the prior art the utility model has the beneficial effects that: the bellows and the movement of other joint recoverings assist
Part is wanted to cooperate, and by the air pressure in control bellows, while forcing bellows to carry out compression or extensional motion, patient is driven to close
Section is moved, and patient is helped to carry out rehabilitation training.
Detailed description of the invention
It, below will be to institute in embodiment description in order to illustrate more clearly of the technical solution in various embodiments of the utility model
Attached drawing to be used is needed to be briefly described.
Fig. 1 is a kind of structure chart of bellows；
Fig. 2 is a kind of sectional view of bellows；
Fig. 3 is bellows in the upper structure chart for being worn on finger joint recovery movement auxiliary member.
Specific embodiment
The above and other technical features and advantages of the present invention are made below in conjunction with attached FIG. 1 to FIG. 3 more detailed
Explanation.
Fig. 1 is a kind of structure chart of bellows, which needs to assist health with finger, toe, leg or arm etc. is used in
The mechanism moved again matches, and bellows interior is hollow, by the air pressure in control bellows, bellows is forced to stretch and press
Contracting movement, so that the bone for needing rehabilitation exercise be made to carry out being forced to move under the stretching of bellows and the drive of compression movement；
Bellows material is high pressure polyethylene (HDPE) or ethylene (EVA).
Fig. 2 is the sectional view of bellows, and as seen from the figure, bellows is by the alternate hose formed of wave crest and trough, each
The apex angle e of wave crest and the base angle f of trough are equal, so the side g in two adjacent wave crest same directions is parallel with h, angle e and angle
When f is equal to 90 degree, the compression performance and tensile property of bellows are equal；When angle e and angle f is acute angle, if angle e and angle f by
Acute angle is straightened to the straight angle, it is larger to stretch space, but enhanced stretch resistance also can be very big, due to by bellows material and stretching angle
Big influence is spent, bellows will appear the phenomenon that cannot restoring when e and angle f become the straight angle at angle, on the contrary, if to wave
Line pipe is compressed, because angle e and angle f becomes 0 degree of angle by acute angle compression, relatively easily, is surrounded by a wave crest, two troughs
Triangle because apex angle wave crest is acute angle, the apex angle rigidity of this triangle is smaller, just opposite when two troughs are compressed to hold
Easily, compression performance is greater than tensile property at this time；When angle e and angle f is obtuse angle, angle e and angle f become the straight angle by obtuse angle and hold relatively
Easily, the triangle surrounded by a wave crest, two troughs because apex angle wave crest is obtuse angle, the apex angle rigidity of this triangle compared with
Greatly, just it is not easy to be compressed when two troughs are compressed, the tensile property of bellows is greater than compression performance at this time；It is special for this
Benefit cannot stretch if subjects bones' bending deformation, need to be become by bending and stretch, and bellows working condition is original by being bent
State is to compressive state, it is desirable that bellows compression performance is greater than tensile property；If limbs of patient is in straight configuration, cannot be curved
Song, that needs bellows original state to correspond to limbs of patient straight configuration, and when limbs of patient is bent, bellows needs are drawn
It stretches, this hour angle e and angle f are that the resistance that obtuse angle, angle e and angle f are encountered by obtuse angle to the straight angle (straight condition) is smaller, are easier
It realizes；
Angle e and angle f is acute angle in Fig. 2, and bellows compression performance is greater than tensile property, is suitable for limbs of patient and is in curved
Curved state, needs the case where stretching；Difference in height between wave crest and trough, i.e. peak height i is bigger, and the compression performance of bellows is got over
It is good, but when outside diameter of bel D immobilizes, peak height i is bigger, and internal diameter d is smaller, will affect the aeration quantity of bellows；Bellows
Thickness t the value is too large will affect its stretch and compression performance, thickness t is related with the gas pressure that bellows is born, gas pressure
Power is bigger, and thickness t is also bigger, for the bellows of assisted finger movement with a thickness of 0.5 millimeter in Fig. 2.
Bellows is in compression in order to prevent, i.e., when the gas pressure in bellows is lower, bellows both ends invagination, in wave
Line pipe both ends carry out intensity reinforcement processing, increase the boss with a thickness of l among the bottom of end, final section wave peak width by
It is k that t, which increases, and chamfering m is increased on end face, this increases the intensity of ripple pipe end, and the air pressure in bellows reduces
When, ripple pipe end will not invaginate, and influence using effect；It is k, end face that bellows head end first segment wave peak width, which is also increased by t,
On increase arc surface, this make the air pressure in bellows reduce when, bellows head end will not invaginate.
Fig. 3 is the structure chart on the effective finger auxiliary member of ripple, and 3 be bellows in Fig. 3, and 2 move for finger joint recovery
Auxiliary member comprising rubber parts 21, small rack 22, middle bracket 23 and big bracket 24；Small rack 22, middle bracket 23 and big bracket 24
It is each attached on rubber parts 21, the small rack 22 of bellows 3, middle bracket 23 and big bracket 24 are fixed.If patient's finger
Be it is curved, when being filled with concora crush gas in bellows, the finger auxiliary member in Fig. 3 is worn on patient's finger, is made at this time
Air pressure in bellows reduces, and bellows carries out compression and becomes straight configuration, drives patient's finger gradually to be stretched by being bent, weight
This movement is carried out again, and patient's finger can passively carry out rehabilitation training.
Certain bellows can be applied in the case of other, and patient is such as assisted to carry out bending training, waist by spasticity
Portion, leg and arm joint rehabilitation training, the diameter of bellows at this moment, thickness, length may be according to the differences of applicable cases
And it is different.
The equipment for controlling bellows gas pressure is that all can complete air-breathing, compression and the equipment of exhaust, such as electronic gas
Pump, hand air pump, foot-propelled air pump etc..
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is unrestricted.Those skilled in the art understand that can be to it in the spirit and scope defined by the utility model claims
Many changes, modifications, and even equivalents are carried out, but all will fall within the protection scope of the utility model.
Claims (6)
1. a kind of bellows, which is characterized in that the bellows is by several wave crests and the alternate inside connected into of several troughs
Hollow pipe, is provided with boss among the end face of the end of the bellows, the first segment of the bellows head end and end
Final section is wave crest, and the width of the final section wave crest of the first segment wave crest and end of head end is all larger than the bellows
Thickness, when preventing the air pressure in the bellows from reducing, the end of the bellows and head end invagination.
2. bellows according to claim 1, which is characterized in that be provided with down on the end face of the end of the bellows
Angle, when preventing the air pressure in the bellows from reducing, the end of the bellows and head end invagination.
3. bellows according to claim 2, which is characterized in that be provided with circular arc on the end face of the head end of the bellows
Face, when preventing the air pressure in the bellows from reducing, the end of the bellows and head end invagination.
4. bellows according to any one of claims 1 to 3, which is characterized in that the apex angle and wave of the bellows wave crest
The base angle of paddy is equal.
5. bellows according to claim 4, which is characterized in that described when the apex angle of the bellows wave crest is acute angle
The compression performance of bellows is greater than tensile property.
6. bellows according to claim 4, which is characterized in that described when the apex angle of the bellows wave crest is obtuse angle
The compression performance of bellows is less than tensile property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818811.1U CN208710408U (en) | 2017-07-07 | 2017-07-07 | A kind of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720818811.1U CN208710408U (en) | 2017-07-07 | 2017-07-07 | A kind of bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208710408U true CN208710408U (en) | 2019-04-09 |
Family
ID=65967521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720818811.1U Active CN208710408U (en) | 2017-07-07 | 2017-07-07 | A kind of bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208710408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920649A (en) * | 2020-02-24 | 2020-11-13 | 合肥工业大学 | Integral software booster unit and limbs helping hand training ware |
-
2017
- 2017-07-07 CN CN201720818811.1U patent/CN208710408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111920649A (en) * | 2020-02-24 | 2020-11-13 | 合肥工业大学 | Integral software booster unit and limbs helping hand training ware |
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