CN108954146B - Passive lifting system and method for waterscape lamps - Google Patents

Abstract

The invention discloses a passive lifting system and method for waterscape lamps. The system is composed of a water diversion unit, a buoy unit, a lamp base unit, a lamp pole unit, an electromagnet lamp pole clamping device and a lamp. The passive lifting system uses buoyancy and gravity to drive the lifting and lowering of the lamps, so that the lighting distance is maintained in a reasonable range, the lighting effect is good, and the system TCO is reduced; the discontinuous lighting height control is practical and effective; the sliding friction of the bearing bush-light pole is used to set Highly controlled sensitivity, the bearing material is graphite fiber reinforced polytetrafluoroethylene, which is simple and reliable; the guide ball assembly is set in the lifting direction of the light pole to ensure the verticality of the lifting and lowering of the light pole; the electromagnet light pole clamping device, which is opened periodically, improves the system The reliability of the system is improved; the buoy has a built-in counterweight and an external setting center wheel, the torque of the lamps is balanced, and the lamp pole does not bear torque, which improves the availability of the system; the buoy pit is equipped with an electric brake, which improves the maintainability of the system.

Description

Passive lifting system and method for waterscape lamps

technical field

The invention belongs to the technical field of lamp panel lifting and lowering of high pole lamps, and particularly refers to a system and method of passive lifting waterscape lamps driven by buoyancy and gravity for river/river/lake waterscape lighting occasions with large water level drop.

Background technique

Water has an innate affinity for the human settlements and natural environment. It is unimaginable to deviate from the harmonious relationship between water and people, regardless of the human settlements, the natural environment, or the landscape environment. On the other hand, lighting can change the appearance of human settlements, natural and landscape environments, brighten the spatial attributes of the environment, and improve the quality of the environment; people's experience of wading, playing and watching water is closely related to the quality of lighting. In recent years, nighttime leisure activities have become more and more popular among Hangzhou citizens: in the past, the West Lake was walking around the lake, but today the Qiantang River is walking along the river; in Xixi Wetland Park, relieve the pressure, give your mind a vacation, and stop at the canal landscape for a long time. Corridor, travel through time and space to make an appointment for the meeting of the ancients. The waterscape scenery belt on the river/river/lake surface is the favorite of citizens for recreation and tourism. The scenery is so beautiful, people always feel that something is missing in terms of lighting: there is more than enough attention to the landscape, and the lack of tourists; the installation of fixed-height lighting fixtures for waterscape occasions with a large water level drop, the lighting effect and the experience of tourists are not good, and it needs to be improved. Improvement is a systematic project involving hydrological data, demand-side analysis, supply-side constraints and alternatives. Taking the water level data of the Hangzhou section of the Beijing-Hangzhou Canal as an example, the water level statistics of the canal over the years are shown in Table 1.

Table 1 Average daily water level and maximum/minimum value of the Hangzhou section of the Beijing-Hangzhou Canal from 1980 to 2009

years 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 average value 1.36 1.29 1.18 1.53 1.45 1.39 1.23 1.19 1.24 1.49 maximum value 2.38 2.60 1.90 3.39 3.42 2.14 2.14 2.29 2.37 2.88 minimum 0.64 0.46 0.67 0.77 1.04 0.93 0.72 0.77 0.75 0.83 years 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 average value 1.40 1.54 1.24 1.58 1.25 1.32 1.34 1.17 1.52 1.65 maximum value 2.40 2.84 2.34 3.11 2.71 3.16 3.51 3.07 2.35 3.85 minimum 0.65 0.88 0.70 0.93 0.70 0.89 0.73 0.68 1.05 0.88 years 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 average value 1.24 1.36 1.47 1.29 1.19 1.34 1.31 1.41 1.57 1.49 maximum value 2.21 3.40 2.10 2.19 2.15 2.24 2.19 3.14 3.29 2.43 minimum 0.75 0.97 1.02 0.82 0.93 0.89 1.04 0.97 1.20 1.10

Xixi Wetland is located in the Hangzhou Canal water system, the water level of the peripheral river is about 1.3m, and the designed water level of the wetland landscape is 1.6m; during the flood period, the peripheral river and the inner river of the wetland jointly undertake the task of flood discharge, and the water level difference is ≥2m.

So far, there is no tailor-made national standard for waterscape lighting. Most of them refer to the urban road lighting design standard (CJJ45-2006), the installation height of lamps in the urban road lighting engineering construction and acceptance specification (CJJ89-2012): small curved lights 5 ~ 6m, ordinary street long arm lights and chandeliers 6.5 ~ 7.5m , fast lane arc lights ≥ 8m, slow lane arc lights ≥ 6.5m; also refer to local urban landscape lighting standards, such as Beijing Standard: Urban Landscape Lighting Technical Specifications (DB11T-388.8-2015); formulate corporate standards, such as Greentown Real Estate Group Co., Ltd. Enterprise Standard: Landscape Lighting Design Review Rules (GTS65006-2012). It must be pointed out that the accuracy of the lighting distance of waterscape lamps is a semi-quantitative and semi-qualitative index, and it is customary to use decimeter (dm) level accuracy. From the perspective of the demand side, that is, citizens, as long as the brightness is moderate and has good uniformity, it is a relatively broad and subjective index; therefore, the so-called lighting distance index should be set as an interval index, and the height adjustment of lamps is also discontinuous and intermittent. Interval adjustment; for example, the initial installation height of the lamp in this article = 4m, and the height adjustment sensitivity = 0.2m, if and only when the lighting distance of the lamp is ≤ 3.8m or ≥ 4.2m, the height adjustment process starts, so that the lighting distance returns to ≈ 4m.

The supply-side solution is straightforward and straightforward. Since the water level of the waterscape changes, the lighting distance of the lamps deviates from the design value and the lighting effect becomes worse; and the water level cannot be adjusted, it is not difficult to obtain a logical solution: the height of the lamps changes with the water level. The solution is to transplant the electromechanical system or stage lighting technology of the high-pole light with the highest similarity in technology, and the technology is mature and feasible. The above techniques are more than enough for height change of water feature fixtures. However, from the technical and economic perspective, the feasibility of the plan is doubtful; the cost is too high, and the operation and maintenance volume is large. Literature [Shjia, Design and Research of Automatic Lifting Lamp Device [J]. Chinese Journal of Lighting Engineering, 2015.26(3): 102-105] Referring to the electromechanical system of high-pole lamps, it is proposed to use ultrasonic liquid level sensor + motor + lead screw/ The lifting device of the nut transmission pair. Hangzhou scenic spots have abandoned the "ticket economy" model that has been criticized by Chinese people, and adhere to the public welfare of the park. Cloning the electromechanical system of the high-pole light, the financial pressure is too great; the waterscape lighting is large and wide, and it is difficult to reach even on the shore of the river beach, and the operation and maintenance workload is too large. The representative research results of waterscape lighting are summarized as follows:

·The invention patent "DMX512 Landscape Lighting Management and Control System and Method Supporting Logical Group Address" (ZL200910098263.X) proposes a DMX512 landscape lighting management and control system and method supporting logical group address.

·The invention patent "Landscape Lighting Color Evaluation Method and Evaluation System" (ZL201410241106.0), proposes landscape lighting light color evaluation method and evaluation system.

·The invention patent "A diverter for landscape lighting" (application number 201710861320.X) proposes a diverter for landscape lighting, which implements voice operation with the help of a voice recognizer.

The above beneficial explorations are a summary of the research results of waterscape lighting; however, in the lighting applications of river/river/lake surface waterscapes with large water level drop, the passive lifting waterscape lighting system driven by buoyancy and gravity has not been involved so far; therefore, there are It is necessary to make further innovative designs on the basis of the existing results.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a passive lifting system and method for waterscape lamps, and the specific technical solutions are as follows:

A passive lifting system for waterscape lamps is characterized in that the system consists of a water diversion unit, a buoy unit, a lamp base unit, a light pole unit, an electromagnet light pole clamping device, and a lamp; the water diversion unit includes a water diversion pipe, a filter screen, Electric brake, buoy pit, buoy unit includes buoy, three centering wheels, counterweight, lamp holder unit includes lamp holder, lamp post, lamp post cover, lamp post unit includes lamp post, four first bearing bushes with buoyancy sensitivity , Four second bearing bushes with buoyancy sensitivity, four first guide balls, and four second guide balls; when the electromagnet lamp pole clamping device loses power, the clamping mechanism fixes the lamp pole under the action of spring force, The force overcomes the spring force and the clamping mechanism is out of contact with the lamp pole; the surface of the lamp pole made of aluminum is hardened, and the lamp is torque balanced, and no torque acts on the lamp pole;

The design position of the water intake of the water diversion pipe is between the bottom of the river bed and the low water level, and the water outlet is at the bottom of the side wall of the pontoon pit. Electric brake, add high-pressure water to the pontoon pit, open the electric brake, and clean the pontoon pit; the pontoon is concentric with the pontoon pit through three centering round wheels. The fixed end hinge of the wheel rod of the round wheel is located in the buoy, and the compression spring pushes the wheel rod to make the round wheel and the buoy pit wall in close contact; the buoy has a built-in counterweight for adjusting the buoyancy of the buoy. The weight of the lamp + the friction force of the four first bearing shells + the friction force of the four second bearing shells; the light pole and the buoy are rigidly connected, corresponding to the dry/normal/flood level of the river, the buoy has three different heights, and the light pole also has one One corresponding to three different heights, the light pole rises and falls with the buoy, the buoy rises and falls with the water level, and the lighting distance of the control lamp is maintained in a reasonable range.

Preferably, the lamp holder is arranged at a river bank, the lamp post is installed on the lamp holder, the top of the lamp post is provided with a lamp post cover, and an electric magnet lamp pole clamping device is installed on the lamp post cover; The lamp post is concentric, the lamp post moves up and down along the vertical direction of the lamp post, and the center of the lamp post cover is reserved for the circular hole required for the up and down movement of the lamp post; the bottom and top of the lamp post are respectively provided with four first bearing mounting holes, Four second bearing bush mounting holes, four first bearing bush mounting holes are distributed 90 degrees apart, and four second bearing bush mounting holes are also distributed 90 degrees apart; between the four first bearing bush mounting holes and the four second bearing bush mounting holes , four first guide ball installation holes and four second guide ball holes are arranged equidistantly, and the opening method is the same as that of the four first bearing bush installation holes.

Preferably, the four first bearing pads include a first bearing pad module, a second bearing pad module, a third bearing pad module, and a fourth bearing pad module, and the four bearing pad modules are distributed 90 degrees apart and installed on the four first bearing pads respectively. in the mounting hole;

The bearing hole of the first bearing module is distributed along the radial direction of the light pole, with rectangular holes for the bearing and circular holes for the bearing with internal thread tapping; , the end face of the first cuboid slider in contact with the lamp pole is processed into the arc surface of lamp pole curvature; the slotted long cylindrical end set screw is screwed into the circular hole of the inner thread of the bearing bush, and the end face of the set screw long cylindrical end and the second cuboid The end faces of the sliders are connected; the material of the first cuboid slider is graphite fiber reinforced polytetrafluoroethylene; tighten the slotted long cylindrical end set screw, and the end face of the long cylindrical end of the set screw pushes the second cuboid slider, spring, The pressure of the first cuboid slider, the light pole, and the first bearing module on the light pole increases, and the friction force increases when the light pole moves up and down along the vertical direction of the light pole, and vice versa;

The composition structure and principle of the second bearing pad module, the third bearing pad module and the fourth bearing pad module are the same as the first bearing pad module, and the four second bearing pads are also the same as the four first bearing pads.

Preferably, each of the four first guide balls includes a first guide ball module, a second guide ball module, a third guide ball module, and a fourth guide ball module, and the four guide ball modules are distributed 90 degrees apart and installed separately. into the four first guide ball mounting holes;

The guide ball hole of the first guide ball module is distributed along the radial direction of the light pole, with the guide ball rectangular hole and the guide ball circular hole tapping the inner thread; Insert the guide ball into the rectangular hole; the slotted long cylindrical end set screw is screwed into the guide ball circular hole tapping the internal thread, and the end face of the set screw long cylindrical end is connected with the end face of the cuboid slider; the material of the cuboid slider is graphite fiber Reinforced PTFE; tighten the slotted long cylindrical end set screw, the end face of the long cylindrical end of the set screw pushes the cuboid slider and ball ball, the distance between the first guide ball module and the light pole is shortened to zero, and vice versa ;

The composition structure and principle of the second guide ball module, the third guide ball module and the fourth guide ball module are the same as the first guide ball module, and the four second guide balls are also the same as the first guide balls.

A passive lifting method for waterscape lamps using the above-mentioned passive lifting system for waterscape lamps, characterized in that the process of the method includes the preparation process of the passive lifting method for waterscape lamps, and the running process of the passive lifting method for waterscape lamps;

First, the preparation process of the passive lifting method of waterscape lamps

(1) Set the operating parameters of the passive lifting system of waterscape lamps

Buoyancy sensitivity, the buoyancy of the buoy corresponding to the illumination distance/water level change interval

≈Frictional force of four first bearing shells + frictional force of four second bearing shells

The working cycle of the electromagnet lamp pole clamping device T=T _{power off} + T _{power on} , T _{power off} > T _{power on}

(2) Adjust the passive lifting system of waterscape lamps

Increase or decrease the built-in counterweight of the pontoon, reduce the buoyancy of the pontoon

Adjust the three centering wheels to make the pontoon concentric with the pontoon pit

Lighting torque balance, no torque acting on the light pole

The four first guide balls and the four second guide balls are tightened with the set screws, the balls are in contact with the light pole, and the set screws are loosened by 0.5 to 1 turn to enter the guide state

Four first bearing bushes and four second bearing bushes, adjust the tightness of 8 slotted long cylindrical end set screws, the static friction force of the bearing bushes ≈ the buoyancy of the buoy in the water level change interval

2. The operation process of the passive lifting method of waterscape lamps

(1) Working cycle of electromagnet lamp pole clamping device

if(t∈T _{loses power} )

The electromagnet light pole clamping device loses power and turns ⑶

else

Electromagnet light pole clamping device is powered

The clamping mechanism is out of contact with the light pole

(2) Height control of lamps

Case1: buoyancy of buoy - light pole/weight - friction force of four first/second bearing bushes ≥ 0

Buoys, poles and lamps rise, turn ⑶

Case2: Light pole/weight - buoyancy - friction force of four first/second bearing bushes ≥ 0

Floaters, poles and lamps descend, turn ⑶

Case3: Other

Buoys, poles and lamps remain in place

(3) The cycle of passive lifting

Turn ⑴.

Compared with the background technology, the present invention has the beneficial effects as follows: the passive lifting system of waterscape lamps uses buoyancy and gravity to drive the lifting and lowering of the lamps, so that the lighting distance is maintained in a reasonable range, the lighting effect is good, and the system TCO is reduced; non-continuous The height control of the lamp is practical and effective; the sensitivity of the height control is set by means of the friction force of the sliding pair of the bearing bush and the light pole, and the material of the bearing bush is graphite fiber reinforced PTFE, which is simple and reliable; the guide ball assembly is set in the lifting direction of the light pole to ensure the lifting of the light pole. The verticality of the electromagnet lamp pole is opened periodically, which improves the reliability of the system; the buoy has a built-in counterweight and an externally set center wheel, the lamp torque is balanced, and the lamp pole does not bear torque, which improves the usability of the system. ; The pontoon pit is equipped with an electric valve, which improves the maintainability of the system.

Description of drawings

Fig. 1 is the principle block diagram of the passive lifting system of waterscape lamps of the present invention;

Figure 2 is a schematic structural diagram of the passive lifting system for waterscape lamps of the present invention;

Figure 3 is a top view of a pontoon pit;

Figure 4 is a cross-sectional view of the lamp socket unit;

5 is a top view and a cross-sectional view of the first bearing pad;

6 is a top view and a cross-sectional view of the first guide ball;

Fig. 7 is the flow chart of the passive lifting method of waterscape lamps;

Among them, 100- water diversion unit, 200- buoy unit, 300- lamp holder unit, 400- light pole unit, 500- electromagnet light pole clamping device, 600- lamp, 110- water diversion pipe, 120- filter screen, 130- Electric brake, 140-buoy pit, 210-buoy, 220-centering wheel, 230-counterweight, 310-lamp base, 320-lamp post, 322-first bearing hole mounting hole, 323-second bearing mounting hole , 324-first guide ball mounting hole, 325-second guide ball mounting hole, 330-lamp post cover, 410-lamp pole, 420-first bearing bush, 421-first bearing bush module, 4211-first cuboid slider , 4212-spring, 4213-cuboid slider, 4214-slotted long cylindrical end set screw, 422-2nd bearing module, 423-3rd bearing module, 424-4th bearing module, 430-second bearing, 440 -1st guide ball, 441-1st guide ball module, 4411-ball, 4412-guide ball cuboid slider, 4413-guide ball slotted long cylindrical end set screw, 442-2nd guide ball module, 443-1st 3 guide ball modules, 444 - the fourth guide ball module, 450 - the second guide ball.

Detailed ways

As shown in Figures 1-3, the passive lifting system of waterscape lamps is composed of a water diversion unit 100, a buoy unit 200, a lamp holder unit 300, a light pole unit 400, an electromagnet light pole clamping device 500, and a lamp 600; the water diversion unit 100 It includes a water diversion pipe 110, a filter screen 120, an electric brake 130, and a pontoon pit 140. The pontoon unit 200 includes a pontoon 210, a centering wheel×3 220, and a counterweight 230. The lamp holder unit 300 includes a lamp holder 310, a lamp post 320, a lamp The column cover 330, the light pole unit 400 includes a light pole 410, four first bearing pads 420 for buoyancy sensitivity, four second bearing pads 430 for buoyancy sensitivity, four first guide balls 440, and four second guide balls 450; electromagnetic When the iron lamp pole clamping device 500 loses power, the clamping mechanism fixes the lamp pole under the action of the spring force. When the power is turned on, the electromagnetic force overcomes the spring force and the clamping mechanism is out of contact with the lamp pole; the surface of the lamp pole 410 made of aluminum is hardened After processing, the lamp 600 performs torque balance, and no torque acts on the lamp pole 410;

The design position of the water intake of the water diversion pipe 110 is between the bottom of the river bed and the low water level, and the water outlet is at the bottom of the side wall of the buoy pit 140. The water intake is installed with a filter screen 120 and the water outlet is installed with an electric gate 130. When the system is maintained and cleaned, the buoy pit 140 is cleaned. Close the filter screen 120, close the electric gate 130, add high-pressure water to the buoyant pit 140, open the electric gate 130, and clean the buoyant pit 140; 220 are separated by 120 degrees, the fixed end hinge of the wheel rod of the centering round wheel is located in the buoy 210, the compression spring pushes the wheel rod to make the round wheel closely contact the wall of the buoy pit 140; the buoy 210 has a built-in counterweight 230 for adjusting the buoyancy of the buoy The buoyancy of the buoy × 80% ≈ the weight of the light pole + the weight of the lamp + the friction force of the four first bearing bushes + the friction force of the four second bearing bushes; the light pole 410 is rigidly connected with the buoy 210, corresponding to the dry/normal/flood level of the river The buoy 210 has 3 different heights, and the light pole 410 also has 3 different heights corresponding to one another.

Note 1: Without loss of generality, this article only discusses the interference of the water level of the river on the lighting distance. The water level of lakes and rivers is similar to the water level of the river. The buoyancy with built-in counterweight can reduce the buoyancy by increasing or decreasing the counterweight, which improves the usability of the passive lifting system of waterscape lamps.

As shown in FIG. 4 , the location of the lamp holder 310 is a river bank, the lamp post 320 is installed on the lamp holder 310, the top of the lamp post 320 is provided with a lamp post cover 330, and an electric magnet lamp pole clamping device 500 is installed on the lamp post cover 330; The lamp post 410 is inserted into the lamp post 320, and the two are concentric. The lamp post 410 moves up and down along the vertical direction of the lamp post, and the center of the lamp post cover 330 reserves a circular hole required for the up and down movement of the lamp post; the bottom of the lamp post 320, The top is respectively provided with four first bearing bush mounting holes 322 and four second bearing bush mounting holes 323, the four first bearing bush mounting holes 322 are distributed 90 degrees apart, and the four second bearing bush mounting holes 323 have the same distribution; four Between the first bearing mounting holes 322 and the four second bearing mounting holes 323, four first guide ball mounting holes 324 and four second guide ball mounting holes 325 are equidistantly arranged, and the opening method is the same as that of the first bearing bush holes 322 is the same.

As shown in FIG. 5 , each of the four first bearing pads 420 includes a first bearing pad module 421 , a second bearing pad module 422 , a third bearing pad module 423 , and a fourth bearing pad module 424 . in the four first bearing bush mounting holes 322;

The bearing hole of the first bearing module 421 is distributed along the radial direction of the light pole 410, and there are rectangular bearing bearing holes and inner-threaded bearing bearing circular holes; Insert into the rectangular hole of the bearing bush, and the end face of the first cuboid slider 4211 in contact with the light pole 410 is processed into a curved surface of the light pole; The end face of the long cylindrical end is connected with the end face of the second cuboid slider; the material of the first cuboid slider is graphite fiber reinforced polytetrafluoroethylene; Press the second cuboid slider 4213, the spring 4212, the first cuboid slider 4211, the light pole 410, the pressure of the first bearing module 421 on the lamp pole 410 increases, and the friction force when the lamp pole 410 moves up and down along the vertical direction of the lamp pole increase, and vice versa;

The structure and principle of the second bearing module 422 , the third bearing module 423 and the fourth bearing module 424 are the same as those of the first bearing module 421 , and the four second bearing pads 430 are also the same as the four first bearing pads 420 .

Note 3: Considering the simplicity of the expression, the installation method of the 1st to 4th bearing modules of the four first bearing bushes is not described; the common ones are the upper and lower annular pressure plate + bolt structure and so on. Four second bearing bushes, four first guide balls, four second guide balls, and the installation of the corresponding modules is the same as above. The adjustment of the height of the lamp is a discontinuous and intermittent interval adjustment, and the size of the interval depends on the buoyancy sensitivity.

As shown in FIG. 6 , each of the four first guide balls 440 includes a first guide ball module 441 , a second guide ball module 442 , a third guide ball module 443 , and a fourth guide ball module 444 , and the four guide ball modules are separated by 90 degree distribution, respectively installed in the holes of the four first guide balls 324;

The guide ball holes of the first guide ball module 441 are distributed along the radial direction of the light pole 410, with guide ball rectangular holes and guide ball circular holes for tapping internal threads; the guide ball cuboid slider 4412 draws on the structure of the outer ring of the ball bearing. , embedded the ball ball 4411, into the rectangular hole of the guide ball; the set screw 4413 of the slotted long cylindrical end of the guide ball is screwed into the circular hole of the guide ball of the tapping internal thread, and the end face of the long cylindrical end of the set screw is connected with the end face of the cuboid slider ; The material of the cuboid slider is graphite fiber reinforced polytetrafluoroethylene; tighten the slotted long cylindrical end set screw 4413, the end face of the long cylindrical end of the set screw pushes the cuboid slider 4412, the ball ball 4411, the first guide ball module The distance between 441 and the light pole 410 is shortened until zero, and vice versa;

The composition structure and principle of the second guide ball module 442 , the third guide ball module 443 and the fourth guide ball module 444 are the same as the first guide ball module 421 , and the four second guide balls 450 are also the same as the four first guide balls 440 same.

Description 4: The function of the four first guide balls and the four second guide balls is to ensure that the light pole moves up and down along the vertical direction of the light pole. Therefore, when the four first/second guide balls are installed, tighten the slotted long cylindrical end set screw until the ball balls are in close contact with the light pole; then, loosen the slotted long cylindrical end set screw by 0.5 to 1 turn, Make the ball and the light pole in a contact non-contact critical state = guide state.

As shown in Figure 7(a), (b), (c), the process of the passive lifting method for waterscape lamps includes the preparation process of the passive lifting method for waterscape lamps, and the operation process of the passive lifting method for waterscape lamps;

First, the preparation process of the passive lifting method of waterscape lamps

(1) Set the operating parameters of the passive lifting system for waterscape lamps;

Buoyancy sensitivity, the buoyancy of the buoy corresponding to the illumination distance/water level variation interval ≈ the frictional force of the four first bearing pads + the frictional force of the four second bearing pads;

The working cycle of the electromagnet lamp pole clamping device is T=T _{power off} + T _{power on} , T _{power off} > T _{power on} ;

(2) Adjust the passive lifting system of waterscape lamps;

Increase or decrease the built-in counterweight of the buoy 210 to reduce the buoyancy of the buoy;

Three adjustment centering wheels 220, the buoy 210 and the buoy pit 140 are concentric;

The luminaire 600 is moment-balanced, and no moment acts on the lamp post 410;

The four first guide balls 440 and the four second guide balls 450 are tightened with the set screws, the ball balls are in contact with the lamp pole, and the set screws are loosened by 0.5 to 1 turn to enter the guiding state;

Four first bearing bushes 420 and four second bearing bushes 430, adjust the tightness of the 8 slotted long cylindrical end set screws, the static friction force of the bearing bushes ≈ the buoyancy of the buoy in the water level change interval

2. The operation process of the passive lifting method of waterscape lamps

(1) Working cycle of the electromagnet light pole clamping device

if(t∈T _{loses power} )

The electromagnet light pole clamping device loses power and turns ⑶

else

Electromagnet light pole clamping device is powered

The clamping mechanism is out of contact with the light pole

(2) Height control of lamps

Case1: buoyancy of buoy - light pole/weight - friction force of first/second bearing x 4 ≥ 0

Buoys, poles and lamps rise, turn ⑶

Case2: Light pole/weight - buoyancy - friction force of the first/second bearing x 4 ≥ 0

Floaters, poles and lamps descend, turn ⑶

Case3: Other

Buoys, poles and lamps remain in place

(3) Cycle of passive lifting

Turn (1).

Note 5: After the system runs for a long time, the height control sensitivity determined by the friction force of the bearing bush-light pole sliding pair will drift. Solution: If the system allows the height sensitivity to vary within a certain range, increase or decrease the built-in counterweight of the pontoon 210; if the system is more stringent on the height sensitivity, adjust 8 open The tightness of the set screw with the cylindrical end of the slot length.

Claims (2)

1. A passive lifting system of a waterscape lamp is characterized in that the system consists of a water diversion unit (100), a buoy unit (200), a lamp holder unit (300), a lamp post unit (400), an electromagnet lamp post clamping device (500) and a lamp (600); the water diversion unit (100) comprises a water diversion pipe (110), a filter screen (120), an electric brake (130) and a buoy pit (140), the buoy unit (200) comprises a buoy (210), three centering circular wheels (220) and a counterweight (230), the lamp holder unit (300) comprises a lamp holder (310), a lamp post (320) and a lamp post cover (330), and the lamp post unit (400) comprises a lamp post (410), four first bearing bushes (420) with buoyancy sensitivity, four second bearing bushes (430) with buoyancy sensitivity, four first guide balls (440) and four second guide balls (450); when the electromagnet lamp pole clamping device (500) is powered off, the clamping mechanism fixes the lamp pole under the action of spring force, when the power is on, the electromagnetic force overcomes the spring force, and the clamping mechanism is separated from the lamp pole; the surface of a lamp post (410) made of aluminum is hardened, the lamp (600) is in torque balance, and no torque acts on the lamp post (410);

the design position of a water intake of the water conduit (110) is between the bottom of a river bed and a low water level, a water outlet is arranged at the bottom of the side wall of the float bowl pit (140), a filter screen (120) is arranged at the water intake, an electric brake (130) is arranged at the water outlet, and when the float bowl pit (140) is cleaned by system maintenance, the filter screen (120), the electric brake (130) is closed, high-pressure water is added into the float bowl pit (140), and the electric brake (130) is opened and the float bowl pit (140) is cleaned; the buoy (210) is concentric with the buoy pit (140) through three centering round wheels (220), the three centering round wheels (220) are three centering round wheels separated by 120 degrees, the wheel rod fixing ends of the centering round wheels are hinged to the buoy (210), and the compression spring pushes and presses the wheel rods to enable the round wheels to be in close contact with the wall of the buoy pit (140); a counterweight (230) for adjusting buoyancy of the buoy is arranged in the buoy (210), and the buoyancy of the buoy with the built-in counterweight is multiplied by 80% and is approximately equal to the weight of a lamp post, the weight of a lamp, the friction force of four first bearing bushes and the friction force of four second bearing bushes; the lamp post (410) is rigidly connected with the buoy (210), the buoy (210) has three different heights corresponding to the low water level, the normal water level and the flood level of the river channel, the lamp post (410) also has three different heights corresponding to one, the lamp post rises and falls along with the buoy, the buoy rises and falls along with the water level, and the illumination distance of the lamp is controlled to be maintained in a reasonable interval;

the arrangement place of the lamp holder (310) is a river bank, the lamp post (320) is arranged on the lamp holder (310), the top end of the lamp post (320) is provided with a lamp post cover (330), and the electromagnet lamp post clamping device (500) is arranged on the lamp post cover (330); the lamp post (410) is inserted into the lamp post (320), the lamp post and the lamp post are concentric, the lamp post (410) does lifting motion along the vertical direction of the lamp post, and a round hole required by the lifting motion of the lamp post is reserved in the center of the lamp post cover (330); the bottom and the top of the lamp post (320) are respectively provided with four first bearing bush mounting holes (322) and four second bearing bush mounting holes (323), the four first bearing bush mounting holes (322) are distributed at intervals of 90 degrees, and the four second bearing bush mounting holes (323) are also distributed at intervals of 90 degrees; four first guide ball mounting holes (324) and four second guide ball holes (325) are arranged between the four first bearing bush mounting holes (322) and the four second bearing bush mounting holes (323) at equal intervals, and the hole opening mode is the same as that of the four first bearing bush mounting holes (322);

the four first bearing bushes (420) respectively comprise a 1 st bearing bush module (421), a 2 nd bearing bush module (422), a 3 rd bearing bush module (423) and a 4 th bearing bush module (424), and the 4 bearing bush modules are distributed at intervals of 90 degrees and are respectively installed in the four first bearing bush installation holes (322);

the bearing bush holes of the 1 st bearing bush module (421) are distributed with bearing bush rectangular holes and bearing bush circular holes for tapping internal threads along the radial direction of a lamp pole (410); the 1 st cuboid sliding block (4211) is connected with the 2 nd cuboid sliding block (4213) through a spring (4212) and is installed in a bearing rectangular hole, and the end surface of the 1 st cuboid sliding block (4211) contacted with the lamp post (410) is processed into a lamp post curvature cambered surface; a slotted long cylindrical end set screw (4214) is screwed into a circular hole of the bearing bush for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the 2 nd cuboid slider; the material of the 1 st cuboid slide block is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long column end set screw (4214), wherein the end surface of the long column end of the set screw pushes a 2 nd cuboid slider (4213), a spring (4212), a 1 st cuboid slider (4211) and a lamp post (410), the pressure of a 1 st bearing bush module (421) on the lamp post (410) is increased, the friction force of the lamp post (410) is increased when the lamp post (410) does lifting motion along the vertical direction of the lamp post, and vice versa;

the composition structure and the principle of the 2 nd bearing bush module (422), the 3 rd bearing bush module (423) and the 4 th bearing bush module (424) are the same as those of the 1 st bearing bush module (421), and the four second bearing bushes (430) are also the same as those of the four first bearing bushes (420);

the four first guide balls (440) comprise a 1 st guide ball module (441), a 2 nd guide ball module (442), a 3 rd guide ball module (443) and a 4 th guide ball module (444), and the 4 guide ball modules are distributed at intervals of 90 degrees and are respectively installed in the four first guide ball installation holes (324);

a guide ball rectangular hole and a guide ball circular hole for tapping an internal thread are distributed in a guide ball hole of the 1 st guide ball module (441) along the radial direction of the lamp post (410); the cuboid slider (4412) is embedded with ball bearings (4411) by taking the structural opening of the outer ring of the ball bearing as reference, and is arranged in a rectangular hole of a guide ball; a slotted long cylindrical end set screw (4413) is screwed into the guide spherical circular hole for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the cuboid slider; the material of the cuboid slider is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long cylindrical end set screw (4413), wherein the end surface of the long cylindrical end of the set screw pushes a cuboid slider (4412) and a ball bearing (4411), the distance between the No. 1 guide ball module (441) and the lamp post (410) is shortened to zero, and vice versa;

the composition and principle of the 2 nd guide ball module (442), the 3 rd guide ball module (443) and the 4 th guide ball module (444) are the same as those of the 1 st guide ball module (421), and the four second guide balls (450) are also the same as those of the first guide balls (440).

2. A passive lifting method of a waterscape lamp using the passive lifting system of claim 1, wherein the flow of the method comprises a preparation flow of the passive lifting method of the waterscape lamp, and an operation flow of the passive lifting method of the waterscape lamp;

preparation process of waterscape lamp passive lifting method

Setting operating parameters of passive lifting system of waterscape lamp

Buoyancy sensitivity: the buoyancy of the buoy corresponding to the illumination distance change interval, namely the water level change interval is approximately equal to the static friction of the four first bearing bushes and the static friction of the four second bearing bushes

Working period T = T of electromagnet lamp post clamping device_{Power loss}+T_{Get electricity}，T_{Power loss}» T_{Get electricity}

Adjustment waterscape lamp passive lifting system

Increase and decrease the balance weight built in the buoy (210) and decrease and increase the buoyancy of the buoy

Three centering round wheels (220) are adjusted and calibrated to ensure that the buoy (210) and the buoy pit (140) are concentric

Lamp (600) has balanced moment and no moment acting on lamp pole (410)

The four first guide balls (440) and the four second guide balls (450) are screwed tightly to the set screw, the ball balls are in contact with the lamp post, the set screw is unscrewed for 0.5-1 circle, and the lamp post enters a guide state; the guiding state is a critical state that the ball bearing and the lamp post are in contact and non-contact;

four first bearing bushes (420) and four second bearing bushes (430), the tightness degree of the tightening screws at the ends of the 8 slotted long cylinders is adjusted, and the static friction force of the bearing bushes is approximately equal to the buoyancy force of the buoy in the water level change interval

Operation process of passive lifting method of waterscape lamp

Working process of electromagnet lamp post clamping device in working period

If (T ∈ T)_{Power loss}）

Electricity-losing parallel connection of electromagnet lamp pole clamping device

Then

Electricity of electromagnet lamp pole clamping device

The clamping mechanism is separated from the lamp post

Height control of a luminaire

Case 1: buoyancy of float bowl, weight of lamp pole, weight of lamp, static friction force of four first bearing bushes and static friction force of four second bearing bushes are more than or equal to 0

The float bowl, the lamp post and the lamp rise and rotate

Case 2: the weight of the lamp post, the weight of the lamp, the buoyancy of the buoy, the static friction force of the four first bearing bushes and the static friction force of the four second bearing bushes are not less than 0

The float bowl, the lamp post and the lamp descend and rotate

Case 3: others

Buoy, lamp post and lamp maintaining original state

Cycle of passive lifting

Rotating shaft

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