CN2168612Y

CN2168612Y - Hydraulic damper

Info

Publication number: CN2168612Y
Application number: CN 93209230
Authority: CN
Inventors: 毛建国
Original assignee: SHUANGLONGXING COMMERCE AND INDUSTRY FACTORY Co Ltd
Current assignee: SHUANGLONGXING COMMERCE AND INDUSTRY FACTORY Co Ltd
Priority date: 1993-04-20
Filing date: 1993-04-20
Publication date: 1994-06-15
Anticipated expiration: 2003-04-20

Abstract

The utility model relates to a hydraulic damper which is used by the energy consumption device of fitness equipment which is in a rotary movement mode or in a changing linear movement mode into the rotary movement mode. The utility model comprises two end plates, a closed space is formed by the two end plates, the end plate faces the closed space, and a plurality of blades are projected and arranged on the end plate; a plurality of blades are projected and arranged on a rotary plate, and the rotary plate can rotate in the closed space; A main shaft is fixed on the rotary plate and projected outside of the end plate, wherein, liquid can be put in the closed space, when the shaft and the rotary plate rotate, the liquid can be agitated by the blades of the rotary plate and the end plate, and the retardarce force is generated to the rotary plate and the shaft.

Description

Hydraulic damper

The utility model system to produce the blocker device of drag, is particularly to a kind of blocker device that is applied in sports equipment relevant for a kind of agitated liquid of utilizing.

Sports equipment in gymnasium or family, for example stationary bicycle, mountain-climbing machine, treadmill etc., its principle is the mechanical energy that manpower is produced, import an energy consumer, change heat energy into, thereby the user only needs minimum space, just can constantly move, to reach suitable amount of exercise.Because this needed space of type games equipment is very little, so quite convenient.Again because the kind difference of energy consumer, and produce different movement effects.Energy consumer generally can be divided into two kinds: 1. friction-type, normally will rub band on flywheel, and mat frictional force produces the power consumption effect, and its frictional force can be adjusted.2. fan-type drives a large-scale fan with the key bar, and the mat blow air produces the power consumption effect, and its resistance can not be adjusted.

Above-mentioned two kinds of energy consumers all respectively have shortcoming.For friction-type, its frictional force be definite value and static friction greater than dynamic friction, so the user can feel to be very difficult to rotate when starting, in case speed up, the user can feel that again resistance reduces, and causes the attenuating movement effects.If increase movement effects and heighten frictional force, then just be difficult to starting at all, especially when slowly running, action is blocked up very much.Therefore, the movement effects that produced of friction-type energy consumer and bad.In addition, behind the friction belt wear, often can not find substitute, make sports equipment ineffective fully.In addition, the friction-type energy consumer is used a very heavy flywheel again always and is made the difficult carrying of body-building apparatus.Moreover the high frequency noise of the generation that rubs between band and the flywheel because of rubbing also makes the user be difficult to stand.

The resistance that the fan-type energy consumer produces increases along with speed.Its movement effects is come well than friction-type, the shortcoming that does not also have friction-type to be difficult to start.And fan does not have the problem that wearing and tearing are changed.Yet the user is when motion, and fan produces huge noise, for user and near people, can cause very big interference, is very irritating problem.In addition, the huge wind-force that fan produced is in the area of cold or make us especially season being difficult to stand.Moreover other shortcomings of fan comprise bulky, and its resistance can not be adjusted.

For this reason, the purpose of this utility model is to propose a kind of agitated liquid of utilizing to produce the blocker device of drag.

The purpose of this utility model is to realize like this, a kind of agitated liquid of utilizing is promptly proposed to produce the blocker device of drag, this device can be used for rotary movement, or convert the energy consumption device of the body-building apparatus of rotary movement again in the linear movement mode, it comprises two end plates, its common confined space that forms, this end plate is equipped with a plurality of blades towards close ability space; One swivel plate, it is equipped with a plurality of blades that can rotate in confined space; One is fixed in swivel plate and protrudes in axle outside the end plate, and it can be subjected to the rotation that drives in the external world, and the rotation of driven rotary plate.But the confined space receiving fluids, when the rotation of axle and swivel plate, the blade that liquid is subjected to swivel plate stirs with the blade of end plate and to swivel plate and axle generation drag.

Advantage according to this blocker device of the present utility model is: its drag energy is with speeding up and increase, and is easy to starting, the wearing and tearing problem of replacing, and its noise is very low, does not produce wind and disturbs, and volume is small and exquisite, can regulate resistance during use.

Below, the utility model will be further described in conjunction with the accompanying drawings for the general, among the figure:

Fig. 1 is the parts explosion of an embodiment of the present utility model;

Fig. 2 is the assembly drawing of Fig. 1 embodiment;

Fig. 3,4,5 is depicted as the view of end plate of the device of Fig. 1;

Figure 6 shows that the view of swivel plate of the device of Fig. 1;

Figure 7 shows that a kind of soft bag shape load controller that the utility model adopts;

Fig. 8 is the view of another embodiment of the present utility model.

Please refer to Fig. 1, the blocker of the utility model system is made up of two end plates 1, swivel plate 2, main shaft 3, two the 1st dividing plates 4, two the 2nd dividing

plates

5 and 6 of axle envelopes.Situation after the combination is consulted Fig. 2.Its basic principle is: two end plates 1 are formed a closure casing, wherein pour into liquid, for example water.User's motion drives main shaft 3, makes swivel plate 2 rotations.Swivel plate 2 and end plate 1 respectively have the blade that matches, and make the liquid in the housing rotate stirring intensely, thereby produce powerful drag, and power is promptly consumed.Because the drag of fluid increases with rotary speed, when therefore this creation being applied to the energy consumer of sports equipment, its resistance also increases with speed, and increases smooth and easy by low speed to resistance at a high speed.When starting, because liquid does not produce resistance, so be easy to starting.Owing to there is not the element of friction, therefore there is not wear problems in this creation.Compare with friction-type energy consumer and fan-type energy consumer, the noise that the blocker of this creation produces is very low, and volume is small and exquisite, and does not also have the puzzlement of fan-type wind-force that energy consumer produces.

See also Fig. 3,4,5.End plate 1 is roughly in the form of annular discs, and its below forms a square groove, that is hopper 11.Mainly be divided into three parts within the end plate 1: outer circular chamber 12, interior ring casing 13 and central portion 14.Outer circular chamber 12 respectively is provided with a plurality of

blades

15,16 with interior ring casing 13.When liquid when outer circular chamber flows, blade 15 can make liquid produce huge strong disturbance, and very big drag takes place.The effect of blade 16 is that the liquid with interior ring casing is expelled to outer circular chamber, producing perturbation action, and reduces liquid and flows into central portion 14.As shown in Figure 2, the effect of central portion 14 is to hold the 1st dividing plate 4 and the 2nd dividing plate 5, form the passage of complications, liquid is flowed into after the central portion 14, will flow out central portion 14 downwards, ring casing 13 in reentering continue circulation and be brought to outer circular chamber 12, so liquid that can not oozes out from the gap between main shaft 3 and the end plate 1.Be provided with the dividing plate 18 of a ring-type between central portion 14 and the internal ring portion 13, be provided with the dividing plate 17 of a ring-type between internal ring portion 13 and the outer portion 12.The thickness of dividing plate 17 is thicker, and offers six pilot holes 19 by the outside of end plate 1, and the blocker after can will making up with screw is fixed on the sports equipment.

The below of end plate 1 has a hopper 11, in order to store liquid.Be provided with dividing plate 20 between hopper 11 and the outer circular chamber 12.The two ends of dividing plate 20 and mid portion are jagged 21, and outer circular chamber 12 can be communicated with hopper 11.Be provided with dividing

plate

22,23,24 within the hopper 11, form tortuous passage.The effect of dividing

plate

20,22,23,24 is: when swivel plate 2 rotations, liquid is driven and is stirred the generation drag at interior ring casing and outer circular chamber, thereby forms the mixture of a kind of liquid and gas.This mixture is subjected to the driving of centrifugal force, enters hopper 11 by breach 21.Owing to can not be subjected to the influence of swivel plate 2 in the hopper 11, the inside is not stirred, after liquid and mixture enter hopper 11, gas separates immediately with liquid, bubble is subjected to stopping of dividing

plate

22,23,24, can not be again to decline, so risen by buoyancy, enter outer circular chamber 12 from breach 21 again, continue circulation within outer circular chamber 12.Therefore the effect of hopper 11 is equivalent to a gas-liquid separation chamber.Near the bottom part, be provided with an opening 25 at hopper 11 sidewalls, liquid opening 25 thus enters hopper 11, and also opening 25 leaves hopper 11 thus.Another effect of hopper 11 is the amount of liquid of regulating in interior ring casing 13 and the outer circular chamber 12, makes the amount of liquid in outer circular chamber 12 keep certain, changes because of outer circular chamber 12 interior amount of liquid differences with the drag of avoiding liquid.

The structure of swivel plate 2 please refer to Fig. 1 and Fig. 6.It is discoid that swivel plate 2 is symmetry, mainly is divided into outer wheel blade 26, interior wheel blade 27, central portion 28 3 parts.This three part is incorporated into disk 29 jointly, and integrally formed with it.The effect of outer wheel blade 26 is to drive liquid ring casing 12 outside end plate 1 to rotate on one side with outer wheel blade 26, disturbance back and forth on one side, because the disturbance meeting of liquid produces very big drag, the size of this drag is directly proportional with the speed of liquid, make blocker drag when rotating at a high speed big so reach, drag is little when low speed rotation, does not almost have drag in when starting when static ().

The effect of interior wheel blade 27 is that the water that will flow into interior ring casing 13 is expelled to outer circular chamber, with the generation perturbation action, and reduces liquid inflow central portion 14,28.Simultaneously, interior wheel blade 27 and blade 16 also can produce the effectiveness of agitated liquid, produce drag jointly with outer wheel blade.As shown in Figure 2, central portion 28 forms ring casings to hold the 1st dividing plate 4 and the 2nd dividing plate 5 jointly with central portion 14, forms the passage of complications.When the liquid that is not discharged to outer circular chamber flows into

central portion

28,14 from interior ring casing, be subjected to obstruction layer by layer, so when liquid along with

central portion

28,14 and the 1st dividing plate 4 and and the 2nd dividing plate 5 when rotating to the below, will flow out

central portion

14,28, ring casing 13 in entering and circulation once again.Therefore, though the utility model does not use airtight axle envelope, and unsealing also between axle envelope and the axle, and be loose fit, can prevent leaked liquid effectively.Model experiment according to the creator, most liquid can circulate to stir between interior ring casing and outer circular chamber and produce drag, and the liquid that has only few part can be subjected to from top inflow central portion, but flow out central portion by the below immediately, the tortuous passageway design of visible central portion can reach the effect that stops leaked liquid really.

The core of disk 29 has an axis hole 30 in axial direction to extend, to hold metal axle center 3.Axis hole 30 inside have the teeth groove (not shown) and the teeth groove 31 in axle center 3 to mesh, and make axle center 3 can drive swivel plate 2.Axle envelope 6 is enclosed within the part 32 that stretches out of axis hole 30, in order to the space of elimination end plate 1 with the part 32 that stretches out of axis hole 30.Between central portion 28 and interior wheel blade 27, be provided with the dividing plate 33 of a ring-type, central portion 28 and interior wheel blade 27 are separated.Interior wheel blade 27 and outside be provided with dividing plate 34 between the wheel blade 26, interior wheel blade 27 and outer wheel blade 26 are separated.Disk 29 dividing plate 34 and outside wheel blade 26 places form the expansion shape, wherein chimeric highdensity material 50 increases the quality of disk 29 outer rims, thereby the rotary inertia of swivel plate 2 is greatly increased.Its objective is the user in use, if temporarily stop to step, disk 29 can not stop, in order to avoid the user has blocking up of stopping suddenly at once because rotary inertia is enough big.On the other hand, when starting, because liquid does not produce resistance as yet, then the rotary inertia of mat disk 29 makes the user not have and steps on empty sensation, and can start smooth-goingly.

Axle center 3 is a metal shaft, and the one end is provided with sprocket wheel 38, and its middle body is provided with the teeth groove engagement of teeth groove 31 and axis hole 30, and to drive swivel plate 2, its two ends are thinner, is configured in bearing (not shown) on the sports equipment to support swivel plate 2 in order to insertion.Sprocket wheel 38 is chimeric with the chain (not shown) in the sports equipment, rotates with user's motion.If user's moving linearly (for example bent rowing), also can via other mechanisms change into rotatablely move after drive sprocket 38 again.

Another characteristics of the utility model are a load controller, can adjust the resistance size with user's needs.As shown in Figure 2, opening 25 has two, and one of them receives water inlet 35, and another then receives load controller 36.Before not using, the user can receive water inlet 35 tap or other waterworks, and running water (or other liquid) is poured into blocker to water level mark 37 shown in Figure 5, makes water level be no more than the lower edge of the hole between axle envelope 6 and the axle 3.Also charge into a part of water (or liquid) in the load controller 36 this moment.Because the Fluid Volume that stirs in blocker is many more, drag is bigger, so the user can improve load controller 36, makes liquid wherein flow into blocker to improve drag, or load controller 36 reduced, make liquid offered load adjuster 36 in the blocker to reduce drag.The utility model also can utilize additive method to regulate the interior amount of liquid of blocker.For example, in Fig. 7, use the load controller 37 of one soft bag of shape.The user can screw anchor clamps 38 makes liquid in the load controller 37 be squeezed into blocker improving drag, or loosens anchor clamps 38 and make liquid flow back to load controller 37 to reduce drag by blocker.

According to the mode of the blocker combination of the utility model as shown in Figure 1, Fig. 2 shows the situation after the combination.Coating sand glue and so on cement on the two end plates contact-making surface oozes out to prevent liquid.The outer rim of end plate is provided with projection 39, clamps with a plurality of clips 40, and two end plates 39 is fixed together.25 of openings are access to water inlet 35 and load controller 36 respectively.

Another embodiment of the utility model is a horizontal type blocker as shown in Figure 8.Its structure and operating principle and the foregoing description are roughly the same.Because liquid can concentrate by centrifugal forces affect towards periphery, so central portion does not have the problem of leakage, can be with first dividing plate 4 and second partition 5 cancellations, and the central portion of swivel plate 2 and end plate 1 is modified as shown shape, can prevent to leak.Its liquid level highest point should not surpass the position of dotted line A.

Though the utility model is described as above with a preferred embodiment; so it is not in order to limit this creation; for those skilled in the art; in the spirit and scope that do not break away from the utility model; change and retouching when making some, so the protection domain of the utility model attached claims person of defining after looking is as the criterion.

Claims

1, a kind of agitated liquid of utilizing is characterized in that to produce the blocker device that is used for body-building apparatus of drag it comprises:

Two end plates, it forms a confined space jointly, and this end plate is equipped with a plurality of blades towards this confined space;

One swivel plate is equipped with a plurality of blades, and it can rotate in this confined space; And

One main shaft is fixed in this swivel plate, and protrudes in outside this end plate, can be subjected to the rotation that drives in the external world, and drives this swivel plate rotation;

Receiving fluids in this confined space, when this main shaft during with the rotation of this swivel plate, this liquid be subjected to the blade of this swivel plate and this end plate the blade stirring and to this swivel plate and this generation drag.

2, blocker device according to claim 1 is characterized in that it also comprises: at least one annular baffle, be disposed at this end plate and this swivel plate near this part, and form tortuous passage, make that this liquid is unlikely to be leaked for this end plate part by this aixs cylinder.

3, blocker device according to claim 1 is characterized in that:

This end plate has near this a plurality of interior blade and a plurality of outer blade of close its outer rim;

This swivel plate has near this a plurality of interior blade and a plurality of outer blade of close its outer rim.

4, means of retardation according to claim 1 is characterized in that:

Edge or increased the weight of near peripheral edge portion outside this swivel plate is to increase the rotary inertia of this swivel plate.

5, blocker device according to claim 1, its spy is that it comprises that one can raise or reduce to regulate the load controller of the amount of liquid in the described confined space.

6, blocker device according to claim 1, it is characterized in that it also comprise one can be by its volume of an institutional adjustment to regulate the load controller of the amount of liquid in the described confined space.