CN210565985U - Variable-volume variable-damping shock absorber - Google Patents
Variable-volume variable-damping shock absorber Download PDFInfo
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- CN210565985U CN210565985U CN201921107066.5U CN201921107066U CN210565985U CN 210565985 U CN210565985 U CN 210565985U CN 201921107066 U CN201921107066 U CN 201921107066U CN 210565985 U CN210565985 U CN 210565985U
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- 238000013016 damping Methods 0.000 title claims abstract description 73
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 40
- 230000035939 shock Effects 0.000 title claims abstract description 36
- 238000002347 injection Methods 0.000 claims description 71
- 239000007924 injection Substances 0.000 claims description 71
- 238000007789 sealing Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 8
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 2
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- 238000007906 compression Methods 0.000 description 16
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- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 230000005288 electromagnetic effect Effects 0.000 description 1
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- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model discloses a variable damping shock absorber of variable volume, including last supporting seat and under bracing seat, the upper surface of going up the supporting seat is equipped with the pressure sensor paster, go up and be equipped with the support column between supporting seat and the under bracing seat, the support column is the segmentation structure, be equipped with the spring damping unit between per two adjacent segmentation support columns, the periphery of every spring damping unit is equipped with the compressed air cabin, the compressed air cabin is equipped with the air outlet valve and the admission valve with the inside breather pipe intercommunication of spring damping unit, the outer wall of compressed air cabin is the rubber layer, the rubber layer takes the outer wall, be equipped with first admission valve on the outer wall, the second admission valve, first electricity integration beam port and second electricity integration beam port, the outer wall is equipped with supporting seat seal ring with last supporting seat junction, the outer wall is equipped with the under bracing seat seal ring with the under bracing. The variable damping shock absorber can bear different loads, and has the advantages of adjustable damping, low cost, and good reliability and sensitivity.
Description
Technical Field
The utility model relates to a machinery damping technical field specifically is a variable damping shock absorber of variable volume.
Background
In recent years, vibration dampers have become irreplaceable in mechanical fields such as automobile, ship, navigation, and precision instrument manufacturing and measurement and control. With the continuous innovation and extension of the technical process, different kinds of shock absorbers are gradually developed, and common shock absorbers include: spring type shock absorbers, hydraulic shock absorbers, inflatable shock absorbers and the like, wherein the spring type shock absorbers are widely used in the field of development and testing of various test products because of low manufacturing cost, short manufacturing period and simple installation means. However, the damping value of the spring is limited due to the limitation of the manufacturing process of the traditional spring shock absorber, and the spring is irreversibly deformed by sudden and overload load excitation, so that the additional maintenance cost of an enterprise organization is greatly increased, and the sustainable design requirement is not met. Although the spring manufacturing process is provided by experts and technical researchers at present by processing methods including surface carburizing, thickening, adding rare metal elements and the like, the rigidity value of the spring is greatly enhanced, but the improvement effect on the damping vibration attenuation characteristic level is still not ideal.
Therefore, in order to overcome the defect, on the basis of the original spiral metal spring, the variable-volume variable-damping shock absorber adopting the design idea of the auxiliary closed air cavity is provided, the control of compressed air can be automatically and intelligently completed by combining an electric control unit according to the excitation of sudden load, the damping value of the shock absorber is improved in an auxiliary mode, the defect that the damping value of the original spring is limited is overcome, in addition, in order to further improve the rigidity value, a support column is adopted to be connected with a plurality of spring damping units in series, the double improvement of the integral rigidity and the damping value of the structure is realized, and the problem that the spring is distorted due to fatigue and excessive deformation possibly occurring in the original structure is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art, and provide a variable damping shock absorber of variable volume. The variable damping shock absorber can bear different loads, and has the advantages of adjustable damping, low cost, and good reliability and sensitivity.
Realize the utility model discloses the technical scheme of purpose is:
a variable damping shock absorber with variable volume is different from the prior art and comprises an upper supporting seat and a lower supporting seat, wherein the upper surface of the upper supporting seat is provided with a pressure sensor patch, a supporting column is arranged between the upper supporting seat and the lower supporting seat and is of a segmented structure, a spring damping unit is arranged between every two adjacent segmented supporting columns, all the segmented supporting columns are used for connecting a group of spring damping units in series, the periphery of each spring damping unit is provided with a compressed air cabin, the compressed air cabin is provided with an air outlet valve and an air inlet valve which are communicated with an air pipe inside the spring damping unit, the outer wall of the compressed air cabin is a rubber layer, the rubber layer is provided with a first injection valve, a second injection valve, a third injection valve, a fourth injection valve, a fifth injection valve and a sixth injection valve, the rubber layer is provided with an outer wall, the outer wall is provided with a first air inlet valve, a second air inlet valve, a first electric integrated, an upper supporting seat sealing washer is arranged at the joint of the outer wall and the upper supporting seat, and a lower supporting seat sealing washer is arranged at the joint of the outer wall and the lower supporting seat.
The structure of first injection valve, second injection valve, third injection valve, fourth injection valve, fifth injection valve and sixth injection valve is unanimous, including the cavity, is equipped with admission valve and circular telegram end on the cavity, and the cavity is inside gaseous, and the cavity is inside to be equipped with solenoid and to be connected with the circular telegram end, and the bottom of cavity still is equipped with the gas delivery outlet, and gas delivery outlet department is equipped with the iron core, and every injection valve passes through the external pressure sensor of the automatically controlled unit of car.
The spring damping unit is a cavity, a sliding rubber sheet is arranged on the outer wall of the cavity, a spring and a rubber body wrapping the spring are arranged in the cavity, a gap is formed between the spring and the rubber body, and the gap is communicated with the compressed air cabin through an air pipe penetrating through the cavity.
The compressed gas cabin is characterized in that gas inside the compressed gas cabin enters and exits the vent pipe inside the spring damping unit through a compressed gas cabin gas outlet valve and a compressed gas cabin gas inlet valve, the compressed gas cabin is adjusted by an adjusting injection valve to inject and absorb gas storage bodies in the compressed gas cabin, the adjusting injection valve injects gas through a gas inlet end, and a gas inlet channel inside the injection valve is inserted into the compressed gas cabin.
The spring damping unit is provided with a sliding friction plate which vertically slides up and down, so that the spring damping unit can be freely compressed inwards along with the change of the stress.
The spring damping units are connected in series through the supporting columns, and load stress can be uniformly dispersed into the spring damping units.
The compressed gas cabin is circumferentially arranged around the spring unit, and the storage volume and the gas compression degree of gas in the compressed gas cabin are adjusted by means of the compressed gas cabin gas outlet valve and the compressed gas cabin gas inlet valve.
The spring rubber gap is inflated through the vent pipe inside the spring damping unit matched with the metal spiral spring inside the compressed gas cabin.
The compression adjusting injection valve and the internal electromagnetic coil can be respectively subjected to centralized ventilation and electrification, and the electric control unit determines the magnitude of flowing current in the electromagnetic coil so as to maintain the electromagnetic coil to generate proper electromagnetic force.
The compressed air chamber adjusting injection valve penetrates through the rubber layer and enters the compressed air chamber to keep good air tightness.
According to the technical scheme, the nonlinear damping characteristic of the gas absorber and the high-strength rigidity characteristic of a traditional metal spring are utilized from the internal combination of the absorber, the integral damping and rigidity value are enhanced in a combined mode, and in addition, the segmented spring damping units are adopted, so that the huge deformation of the spring is favorably reduced, and the defect that the stress intensity is too large and the service life of the spring is influenced is avoided.
According to the technical scheme, the compression gas chambers distributed in the circumferential direction are combined, the pressure sensor at the top of the shock absorber transmits pressure signals to the electric control unit, the electric control unit controls the current of the electromagnetic coil through the upper total integrated beam port, the lower end gas output port is subjected to feedback adjustment, and the intelligent control of the compression degree of the spring compression space is realized.
The technical scheme has the beneficial effects that: the technical scheme is based on the advantage of high strength of the traditional spiral spring, and aims at the defects of large deformation, intelligence, low sensitivity and the like of the traditional spring, a combination method of multi-stage air bag compression space and spiral spring compression is adopted, so that the shock absorber can autonomously control the compression degree of an air bag according to the load, the whole elasticity and damping are kept in the best state, the manufacturing cost and the maintenance cost are low, and the reliability and the sensitivity are better.
The variable damping shock absorber can bear different loads, and has the advantages of adjustable damping, low cost, and good reliability and sensitivity.
Drawings
FIG. 1 is a sectional view of the variable damping shock absorber with variable volume according to the present invention;
FIG. 2 is a schematic cross-sectional view of a partial spring damping unit;
FIG. 3 is a sectional view of a structure of a regulating injection valve of the compressed gas cabin;
in the figure: the high-pressure gas injection valve comprises an upper support seat 2, a first electric integration beam port 3, a first injection valve 4, an outer wall 5, a second injection valve 6, a third injection valve 7, a second electric integration beam port 8, a lower support seat sealing gasket 9, a second gas inlet valve 10, a fourth injection valve 11, a fifth injection valve 12, a sixth injection valve 13, a first gas inlet valve 14, an upper support seat sealing gasket 15, a pressure sensor patch 16, a gas inlet valve 17, a cavity 18, a gas 19, an electromagnetic coil 20, an iron core 21, a gas outlet 22, an electrifying end 23, a vent pipe 24, a compressed gas chamber 25, a sliding rubber sheet 26, a gas outlet valve 27, a gas inlet valve 28, a support column 29, a spring damping unit 30, a rubber layer 31, a rubber body 32, a lower support seat 33 and a spring.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings and examples, but not to be construed as limiting the present invention.
Example (b):
referring to fig. 1, a variable damping shock absorber with variable volume comprises an upper supporting seat 1 and a lower supporting seat 32, wherein a pressure sensor patch 15 is arranged on the upper surface of the upper supporting seat 1, a supporting column 28 is arranged between the upper supporting seat 1 and the lower supporting seat 32, the supporting column 28 is of a segmented structure, a spring damping unit 29 is arranged between every two adjacent segmented supporting columns 28, all the segmented supporting columns 28 connect a group of spring damping units 29 in series, a compressed air chamber 24 is arranged on the periphery of each spring damping unit 29, the compressed air chamber 24 is provided with an air outlet valve 26 and an air inlet valve 27 which are communicated with an air pipe 23 inside the spring damping unit 29, the outer wall of the compressed air chamber 24 is a rubber layer 30, a first injection valve 3, a second injection valve 5, a third injection valve 6, a fourth injection valve 10, a fifth injection valve 11 and a sixth injection valve 12 are arranged on the rubber layer 30, the outer wall 4 of the rubber, the outer wall 4 is provided with a first air inlet valve 13, a second air inlet valve 9, a first electric integration beam port 2 and a second electric integration beam port 7, an upper supporting seat sealing washer 14 is arranged at the joint of the outer wall 4 and the upper supporting seat 1, and a lower supporting seat sealing washer 8 is arranged at the joint of the outer wall 4 and the lower supporting seat 32.
The structure of first injection valve 3, second injection valve 5, third injection valve 6, fourth injection valve 10, fifth injection valve 11 and sixth injection valve 12 is unanimous, including cavity 17, be equipped with admission valve 16 and circular telegram end 22 on the cavity 17, cavity 17 is inside to be gaseous 18, and cavity 17 is inside to be equipped with solenoid 19 and to be connected with circular telegram end 22, and the bottom of cavity 17 still is equipped with gaseous delivery outlet 21, and gaseous delivery outlet 21 department is equipped with iron core 20, and every injection valve passes through the external pressure sensor of the electrical unit of car.
The spring damping unit 29 is a cavity, the outer wall of the cavity is provided with a sliding rubber sheet 25, a spring 33 and a rubber body 31 wrapping the spring 33 are arranged in the cavity, a gap is formed between the spring 33 and the rubber body 31, and the gap is communicated with the compressed air chamber 24 through an air pipe 23 penetrating through the cavity.
The gas in the compressed gas cabin 24 enters and exits the vent pipe 23 in the spring damping unit through the compressed gas cabin outlet valve 26 and the compressed gas cabin inlet valve 27, the pressure of the gas stored in the compressed gas cabin is adjusted by the inlet valve 16 arranged on the cavity 17 of the compressed gas cabin, the gas is infused into the cavity 17 through the inlet valve 16, and the gas is inserted into the compressed gas cabin 24 through the vent pipe 23 in the compressed gas cabin.
The spring damping unit 29 is provided with a sliding rubber sheet 25 which vertically slides up and down to ensure that the spring damping unit can be freely compressed inwards along with the change of stress.
The spring damping units 29 are connected in series at intervals by the supporting columns 28, so that the load stress can be uniformly dispersed into each spring damping unit.
The compressed gas cabin 24 is circumferentially arranged at two sides of the spring unit, and the storage amount and the gas compression degree of the gas inside the compressed gas cabin 24 are adjusted by means of a gas outlet valve 26 and a gas inlet valve 27 of the compressed gas cabin 24.
The inside of the compressed air chamber 24 is inflated to the spring rubber gap through the air pipe 23 inside the spring damping unit 29 paired with the metal coil spring 33.
The air inlet valve 16 and the electrifying end 22 on the cavity 17 are intensively ventilated and electrified by the second air inlet valve 9, the first air inlet valve 13, the first electric integration beam port 2 and the second electric integration beam port 7 respectively, and the electric control unit determines the flowing current in the electromagnetic coil so as to maintain the electromagnetic coil 19 to generate proper electromagnetic force, so that the iron core 20 is attracted to move upwards to obtain a proper ventilation opening.
The compressed air chamber 24 is communicated from the cavity 17 to the compressed air chamber through the rubber layer 30 so as to maintain good air tightness.
The gas vibration absorber is internally combined, the nonlinear damping characteristic of the gas vibration absorber and the high-strength rigidity characteristic of the traditional metal spring are utilized, the integral damping and rigidity value is enhanced in a combined mode, and the segmented spring damping units are adopted, so that the huge deformation of the spring is reduced, and the defect that the service life of the spring is influenced due to overlarge stress strength is avoided.
In the embodiment, the compression gas chambers distributed in the circumferential direction are combined, the pressure sensor at the top of the shock absorber transmits pressure signals to the electric control unit, the electric control unit further controls the current of the electromagnetic coil through the upper total integrated beam port, the lower end gas output port is subjected to feedback regulation, and the intelligent control of the compression degree of the spring compression space is realized.
Referring to fig. 1, when a load passes through the upper supporting seat 1, the pressure sensor sheet 15 on the surface of the upper supporting seat 1 senses the magnitude of the load pressure and feeds a pressure signal back to the electronic control unit, the first electric beam combining port 2 and the second air inlet valve 9 are used for controlling the internal current of the electromagnetic coil 19 arranged on the first regulating injection valve 3, the second injection valve 5, the third injection valve 6, the fourth injection valve 10, the fifth injection valve 11 and the sixth injection valve 12 of the compressed air chamber in the shock absorber, the first air inlet valve 13 and the second air inlet valve 9 are used for controlling and inputting air to the injection valve 3 of the compressed air chamber 24, the second injection valve 5 of the compressed air chamber, the third injection valve 6 of the compressed air chamber, the fourth injection valve 10 of the compressed air chamber, the fifth injection valve 11 of the compressed air chamber 24 and the sixth injection valve 12 of the compressed air chamber in the shock absorber.
The first adjusting injection valve 3 of the compressed air cabin in the shock absorber, the second injection valve 5 of the compressed air cabin, the third injection valve 6 of the compressed air cabin, the fourth injection valve 10 of the compressed air cabin, the fifth injection valve 11 of the compressed air cabin, the sixth injection valve 12 of the compressed air cabin and the rubber layer 30 have good air tightness, the rigidity value of the rubber layer 30 is larger than that of the rubber body 31 matched with the inner spring, the problem of deformation and air leakage is guaranteed not to occur, the rigidity value of the rubber body 31 matched with the inner spring needs to be certain rigidity value under the premise of not influencing the deformation of the spring, and the rigidity value can be determined through an air tightness detection test.
The lower supporting seat sealing washer 8 and the upper supporting seat sealing washer 14 of the shock absorber can prevent the influence on the operation of the internal structure and the overall practical service life of the shock absorber due to the entering of external sand and dust on the premise of ensuring the air tightness.
Referring to fig. 2, the cavity 17 of the shock absorber is provided with an air inlet valve 16 and an energized end 22 to ensure sufficient air pressure output in a compressed air chamber 24 and a vent pipe 23 of a rubber body 31. After the pressure sensor sheet 15 senses the touch of the load, real-time pressure signals are continuously transmitted to the electronic control unit, the electronic control unit obtains the grade of sensed pressure after being processed by a preset signal analysis program, the current on the electromagnetic coil 19 is indirectly controlled by the electrifying end 22 on the cavity 17 of the shock absorber, the electromagnetic coil generates attraction force due to the electromagnetic effect and attracts the iron core 20 upwards, and the conveying gas of the gas inlet channel 18 inside the injection valve indirectly controls the gas conveying amount of the gas outlet 21 at the lower end due to the change of the gap between the gas inlet iron core and the pipeline, so that the gas amount and the compression degree in the compressed gas chamber can be in a proper numerical range.
Referring to fig. 3, under the action of load, the upper supporting seat 1 and the lower supporting seat 32 can bidirectionally press the springs inwards, the springs can deform and press inwards due to the pressure action, in the process, the rubber body 31 and the springs 33 can contact and deform in an extruding manner, the deformation action can close the vent pipes 23 inside the spring damping units, and a small gas sealing compression cavity inside is formed and is matched with the springs to form a combined damping vibration attenuation system of gas vibration attenuation damping and spring vibration attenuation damping.
The spring damping units 29 of the shock absorber are supported, reinforced and connected through the supporting columns 28, so that the spring damping units have strong rigidity characteristics when being subjected to large bearing load force, the movement of the spring damping units is prevented from being interfered and dislocated, and the danger of fracture and transverse deformation of the traditional spring when being subjected to large load force is overcome.
A sliding rubber sheet 25 is arranged between a spring damping unit 29 and the side wall of the shock absorber, the rubber sheet can ensure that the spring damping unit 29 can be integrally deformed to generate inward compression change in the inward compression process of the spring, good sliding performance and flexibility are required to be achieved between the sliding friction sheet 25 and the inner wall, and the rigidity value is small.
The cavity 17 in the shock absorber can inject gas into the compressed gas cabin 24, the compressed gas cabin 24 is used as an intermediate body for gas buffering, the gas storage and release effects are mainly achieved, when needed, the gas quantity in the spring-matched rubber sealing layer can be adjusted at any time through the gas inlet valve 27 and the gas outlet valve 26, and the size of the gas inlet valve 27 and the size of the gas outlet valve 26 are not too small when set, so that the whistling sound is avoided when the gas passes through.
Claims (3)
1. A variable damping shock absorber with variable volume is characterized by comprising an upper supporting seat and a lower supporting seat, wherein a pressure sensor patch is arranged on the upper surface of the upper supporting seat, supporting columns are arranged between the upper supporting seat and the lower supporting seat and are of a segmented structure, a spring damping unit is arranged between every two adjacent segmented supporting columns, a group of spring damping units are connected in series through all the segmented supporting columns, a compressed air cabin is arranged on the periphery of each spring damping unit and is provided with an air outlet valve and an air inlet valve which are communicated with an air pipe inside the spring damping unit, the outer wall of the compressed air cabin is a rubber layer, a first injection valve, a second injection valve, a third injection valve, a fourth injection valve, a fifth injection valve and a sixth injection valve are arranged on the rubber layer, the outer wall of the rubber layer is provided with the first air inlet valve, the second air inlet valve, a first electric integrated beam port and a second electric integrated beam port, an upper supporting seat sealing washer is arranged at the joint of the outer wall and the upper supporting seat, and a lower supporting seat sealing washer is arranged at the joint of the outer wall and the lower supporting seat.
2. The variable damping shock absorber of claim 1, wherein the first injection valve, the second injection valve, the third injection valve, the fourth injection valve, the fifth injection valve and the sixth injection valve are of the same structure and comprise a cavity, an air inlet valve and a power-on end are arranged on the cavity, air is arranged in the cavity, an electromagnetic coil is arranged in the cavity and connected with the power-on end, an air outlet is further arranged at the bottom of the cavity, an iron core is arranged at the air outlet, and each injection valve is externally connected with a pressure sensor through an electric control unit of an automobile.
3. The variable damping shock absorber of claim 1, wherein the spring damping unit is a cavity, the outer wall of the cavity is provided with a sliding rubber piece, the cavity is internally provided with a spring and a rubber body wrapping the spring, a gap is formed between the spring and the rubber body, and the gap is communicated with the compressed air chamber through an air pipe penetrating through the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107066.5U CN210565985U (en) | 2019-07-16 | 2019-07-16 | Variable-volume variable-damping shock absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921107066.5U CN210565985U (en) | 2019-07-16 | 2019-07-16 | Variable-volume variable-damping shock absorber |
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| CN210565985U true CN210565985U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921107066.5U Expired - Fee Related CN210565985U (en) | 2019-07-16 | 2019-07-16 | Variable-volume variable-damping shock absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219929A (en) * | 2019-07-16 | 2019-09-10 | 桂林电子科技大学 | A kind of variable damping damper of variable volume |
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2019
- 2019-07-16 CN CN201921107066.5U patent/CN210565985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219929A (en) * | 2019-07-16 | 2019-09-10 | 桂林电子科技大学 | A kind of variable damping damper of variable volume |
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