Summary of the invention
The technical problem to be solved by the present invention is providing a kind of damper for wheelchair for facilitating and distinguishing shock conditions.
The solution that the present invention solves its technical problem is:
A kind of damper for wheelchair, including installing pipe, further include end cap, and the end cap is in the tubular of top closure,
The bottom of the end cap is connected with the top of the installing pipe, and the space in the end cap is connected to the space in the installing pipe
It is integral, spring, scraping blade are additionally provided in the end cap, the top of the spring is connect with the top of the end cap, the scraping blade
Inner end and the spring it is affixed, the outer end of the scraping blade abuts the medial surface of the end cap;
Be successively arranged retainer plate, elastic, lower connecting column in the installing pipe from top to bottom, the bottom surface of the elastic with
The top surface of the lower connecting column abuts, and gap, the bottom of the lower connecting column are equipped between the elastic and the installing pipe
Equipped with the linkage section being connect for the rolling member with wheelchair;
It further include upper connecting column, the upper connecting column includes column cap, below the column cap and the column cap is affixed
Shaft, the column cap are set to above the retainer plate, and the bottom end of the shaft sequentially passes through the retainer plate and the elastic,
The bottom end of the shaft is connect with the top of the lower connecting column, and spacing is equipped between the bottom end of the spring and the column cap.
It as a further improvement of the above technical scheme, further include sliding bearing, the sliding bearing sleeve is in the lower company
Connect on column and affixed with the lower connecting column, the lateral surface of the sliding bearing and the medial surface of the installing pipe are slidably connected.
As a further improvement of the above technical scheme, the lower connecting column includes the small cooperation set gradually from top to bottom
Section, greatly cooperate section, limit section, linkage section, the sliding bearing sleeve in the small cooperation section, the bottom end of the sliding bearing and
The big cooperation section abuts, and gap is equipped between the big cooperation section and the installing pipe, and the limit section is set to the installation
The bottom surface of the lower section of pipe, the linkage section is equipped with threaded hole.
As a further improvement of the above technical scheme, the lower part of the big cooperation section is cased with rubber washer, the rubber
Washer is set between the installing pipe and the limit section.
As a further improvement of the above technical scheme, the material of the retainer plate is rubber, the material of the installing pipe
For metal.
As a further improvement of the above technical scheme, the material of the elastic is rubber.
As a further improvement of the above technical scheme, the material of the scraping blade is nylon.
As a further improvement of the above technical scheme, further include data converter, terminal presentation facility and be set to described
Sonic sensor in end cap, the data converter are electrically connected with sonic sensor, terminal presentation facility respectively, the data
Converter is set for handling the collected acoustic signals of the sonic sensor and processed signal is passed to terminal showing
Standby, the terminal presentation facility is for showing audiograph.
The beneficial effects of the present invention are: scraping blade can repeatedly scratch in the medial surface of end cap when wheelchair shakes, issues and ring
Sound, amplitude is bigger, and single sound duration is longer, and vibration frequency is higher, and the frequency of sound is also higher.Push wheel chair as a result,
People may determine that wheelchair by shake the case where, then select be suitble to push wheel chair section.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection relationships not singly refer to that component directly connects, and referring to can be according to specific implementation situation, by adding or reducing connection
Auxiliary, to form more preferably coupling structure.Each technical characteristic in the invention, under the premise of not conflicting conflict
It can be with combination of interactions.
Referring to figs. 1 to Fig. 2, this is the embodiment of the present invention, specifically:
A kind of damper for wheelchair, including installing pipe 1 further include end cap 2, and the end cap 2 is in the cylinder of top closure
Shape, the bottom of the end cap 2 are connected with the top of the installing pipe 1, in the space in the end cap 2 and the installing pipe 1
Space connection is integral, and spring 7, scraping blade 71, the top on the top of the spring 7 and the end cap 2 are additionally provided in the end cap 2
Connection, the inner end of the scraping blade 71 and the spring 7 are affixed, and the outer end of the scraping blade 71 abuts the medial surface of the end cap 2;
Retainer plate 6, elastic 8, lower connecting column, the bottom of the elastic 8 are successively arranged in the installing pipe 1 from top to bottom
Face is abutted with the top surface of the lower connecting column, and gap, the lower connecting column are equipped between the elastic 8 and the installing pipe 1
Bottom be equipped with the linkage section 44 that connect for the rolling member with wheelchair;
It further include upper connecting column, the upper connecting column includes column cap 31, is set to 31 lower section of column cap and the column cap 31
Affixed shaft 32, the column cap 31 are set to 6 top of retainer plate, and the bottom end of the shaft 32 sequentially passes through the retainer plate
6 and the elastic 8, the bottom end of the shaft 32 connect with the top of the lower connecting column, the bottom end of the spring 7 with it is described
Spacing is equipped between column cap 31.
The working principle of the invention is: when wheelchair passes through rugged road surface, since the bottom end of lower connecting column is used for
It is connect with the rolling member of wheelchair, therefore lower connecting column is firstly received vibration, therewith, lower connecting column drive is attached thereto upper
Connecting column carries out vibration up and down back and forth, meanwhile, lower connecting column repeatedly extrudes elastic 8 and consumes vibration energy;Work as vibration amplitude
It is larger, so that when the vibration stroke of column cap 31 is greater than the spacing between the bottom end and the column cap 31 of spring 7, in column cap 31
Under shock, spring 7 is repeatedly compressed and is restored, and then, scraping blade 71 repeatedly scratches in the medial surface of end cap 2, issues sound, vibration
Width is bigger, and single sound duration is longer, and vibration frequency is higher, and the frequency of sound is also higher.The people of push wheel chair can as a result,
To judge the case where wheelchair is by shake, the section of suitable push wheel chair is selected with this.
Further, further include sliding bearing 5,5 sets of the sliding bearing on the lower connecting column and with the lower company
Connect that column is affixed, the lateral surface of the sliding bearing 5 and the medial surface of the installing pipe 1 are slidably connected.Above structure can reduce
Friction between lower connecting column and installing pipe 1 prevents the abrasion between lower connecting column and installing pipe 1, while reducing lower connecting column
The noise that friction between installing pipe 1 generates interferes this to be used for the damper of wheelchair and prompts shock conditions.In addition, sliding axle
Holding 5 also has the function of preventing the axis offset of lower connecting column, and the movement of lower connecting column is made to keep straight line.
Further, the connecting column includes the small cooperation section 41 set gradually from top to bottom, big cooperation section 42, limit section
43, linkage section 44,5 sets of the sliding bearing in the small cooperation section 41, the bottom end of the sliding bearing 5 and the big cooperation
Section 42 abuts, and gap is equipped between the big cooperation section 42 and the installing pipe 1, and the limit section 43 is set to the installing pipe 1
Lower section, the bottom surface of the linkage section 44 is equipped with threaded hole.
Further, the lower part of the big cooperation section 42 is cased with rubber washer 61, and the rubber washer 61 is set to the peace
Between tubulature 1 and the limit section 43.Rubber washer 61 can be with the collision between buffer limit section 43 and installing pipe 1.And rubber
The sound insulation effect of glue is fine.Rubber washer 61 can generate noise to avoid the collision between limit section 43 and installing pipe 1, and interference should
Damper for wheelchair prompts shock conditions.
Further, the material of the retainer plate 6 is rubber, and the material of the installing pipe 1 is metal.Rubber-moulding holds
Easily, rubber can be bonded securely with metal, and when wheelchair shakes, column cap 31 and the collision of the retainer plate 6 of rubber material are not easy to produce
Raw noise.
Further, the material of the elastic 8 is rubber.The high-frequency vibration isolation performance of rubber is good, sound insulation effect
Very well, and light weight, price are low.In general the price of the spring damper of same bearing capacity is more expensive than rubber absorbers very
It is more.Because wheelchair is frequently necessary to move, light-weight is a key factor convenient to use.
Further, the material of the scraping blade 71 is nylon.Nylon has centainly internally-damped, is rubbed and is shaken
When, the sound of generation is sharp not as good as metal, for making scraping blade of the invention, is not likely to produce uncomfortable audible noise.
It further, further include data converter, terminal presentation facility and the sonic sensor in the end cap, institute
It states data converter to be electrically connected with sonic sensor, terminal presentation facility respectively, the data converter is for handling the sound
Processed signal is simultaneously passed to terminal presentation facility by the collected acoustic signals of wave sensor, and the terminal presentation facility is used
In display audiograph.In this way, the road conditions that wheelchair is passed through can quantitatively, clearly be shown in audiograph, in order to wheelchair
User more easily selects to carry out path.In addition, other people can pass through terminal when the people for taking wheelchair individually goes out
Display remotely grasps situation, when unexpected fluctuation occurs in audiograph, can speculate situations such as wheelchair overturns, other people can be timely
Make reply.
Better embodiment of the invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are included in the claim of this application limited range.