CN213840283U - Projector waterproof protection device capable of sinking and floating on water - Google Patents
Projector waterproof protection device capable of sinking and floating on water Download PDFInfo
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- CN213840283U CN213840283U CN202022018859.9U CN202022018859U CN213840283U CN 213840283 U CN213840283 U CN 213840283U CN 202022018859 U CN202022018859 U CN 202022018859U CN 213840283 U CN213840283 U CN 213840283U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 238000005266 casting Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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Abstract
The utility model discloses can sink can float in projector water proof protection device of the surface of water belongs to and puts shadow machine and laser machine protection device technical field. Comprises a sinking and floating base and a waterproof lifting box body fixed on the sinking and floating base, wherein a video player and a laser machine are arranged in the waterproof lifting box body; a hoisting device is arranged between the sinking and floating cabinet body of the sinking and floating base and the bottom plate; the waterproof lifting box body is provided with a glass plate surface, the other side door surface is provided with a fan for air inlet and a fan for air outlet, a water sensor is arranged on a steel bar at the position below the waterproof lifting box body, and a temperature sensor, a humidity sensor and a controller are arranged in the waterproof lifting box body. The advantages are that: at rivers, lakes of tourist attraction, this projector water protection device can sink in rivers, lake underwater daytime, can not influence surface of water view and pleasure boat daytime, has solved the projector and has played the shadow on the bank and can not satisfy with the problem of the best distance position of putting the shadow of water curtain, plays the most clear picture as night scene and vwatchs on the fountain water curtain optimum position at night.
Description
Technical Field
The utility model belongs to the technical field of put shadow machine and laser machine protection device, especially relate to can sink can float in putting shadow machine and laser machine protection device of the surface of water.
Background
At present, the water curtain picture generated by a projector at night is a new artistic form by discharging the shadow on the artificial water curtain in rivers and lakes. However, the projectable distance of the projector is limited, and for a larger water curtain in rivers and lakes, the picture projected by the projector on the water curtain beyond the distance on the bank side is not clear and has insufficient brightness, but the projector cannot be put on a ship for projection, and the projected picture is irregular and disorderly and loses artistry because the ship moves along with water.
Disclosure of Invention
The utility model aims to provide a floating cabinet body which is fixed in water in rivers and lakes, and floats in water and does not shake when a shadow is put on the floating cabinet body; when not laying the shadow, the device sinks under water, and does not affect the water landscape and the waterproof protection device of the projector and the laser machine of the pleasure boat.
The utility model has the structure that:
can sink can float in projector water proof protection device of surface of water, including can sinking and floating base 1 and waterproof lifting box 2, waterproof lifting box 2 is fixed on can sinking and floating base 1, its characterized in that:
the structure of the floatable base 1: the multifunctional sinking and floating cabinet comprises a sinking and floating cabinet body 3, a bottom plate 4, a plurality of slidable inner and outer sleeves 5 and a hoisting device 6, wherein foam with specific gravity lower than that of water is arranged in the sinking and floating cabinet body 3, a shell of the sinking and floating cabinet body 3 is a hard shell which is made of steel plates and has an unchanged shape, a distance is reserved between the sinking and floating cabinet body 3 and the bottom plate 4, and a plurality of slidable inner and outer sleeves 5 are connected between the sinking and floating cabinet body 3 and the bottom plate 4 to form a structure with adjustable height.
When in use, the upper ends of the inner and outer sleeves 5 which can slide are connected with the sinking and floating cabinet body 3, the lower ends are fixed on the ground of the bottom of a river or a lake buried under water, the bottom plate 4 is arranged at the position close to the ground under the sinking and floating cabinet body 3, and the hoisting devices 6 are arranged under the sinking and floating cabinet body 3 and on the bottom plate 4.
A plurality of steel bars 10 are fixed on the periphery of the waterproof lifting box body 2, and the lower ends of the steel bars 10 are fixedly connected with the upper surface of the floatable cabinet body 3, so that the waterproof lifting box body 2 is kept fixed at the position above the floatable cabinet body 3;
structure of waterproof lifting box 2: one surface of the waterproof lifting box body 2 is a toughened doubling double-layer glass plate 11 surface, the other surface is a door 12 surface with a fan, the door 12 with the fan is provided with an air inlet fan 13 and an air outlet fan 14, the air inlet fan 13 and the air outlet fan 14 are connected with an electromagnetic sealing valve 16 on an air pipe 15 of the waterproof lifting box body 2, a partition plate 17 is arranged in the middle of the waterproof lifting box body 2, the middle of the waterproof lifting box body is provided with the partition plate 17 to separate the interior of the waterproof lifting box body 2 into an upper layer and a lower layer, and the middle of the waterproof lifting box body is provided with a plurality of air guide holes 18; the upper layer and the lower layer are respectively provided with a projector for generating a water curtain picture and a laser machine for generating a laser beam.
A water sensor 19 is arranged on a steel bar 10 at the lower position of the waterproof lifting box body 2, a temperature sensor 20, a humidity sensor 21 and a controller 22 with receiving and sending function information are arranged in the waterproof lifting box body 2, the controller 22 with receiving and sending function information is respectively connected with the water sensor 19, the temperature sensor 20, the humidity sensor 21, a switch of the hoisting motor 7, a motor switch of the air inlet fan 13, a motor switch of the air outlet fan 14, a switch of the electromagnetic sealing valve 16 of the air inlet fan 13 and a switch of the electromagnetic sealing valve 16 of the air outlet fan 14 in a wire mode; the waterproof lifting box body 2 is also provided with a power switch 23 of the projector and the laser machine, and the power switch 23 is connected with a controller 22 with the function of receiving and sending information.
And (3) a shadow casting work flow:
step one, rising the water level: each inner and outer sleeve 5 capable of sliding is made of two stainless steel pipes which are sleeved inside and outside properly, when the controller 22 with the receiving and sending function information enables the hoisting motor 7 to release the pull rope 9, the sinking and floating cabinet body 3 can rise automatically by utilizing buoyancy to enable the waterproof lifting box body 2 to rise out of the water surface, when the water sensor 19 below the waterproof lifting box body 2 leaves the water surface, the water sensor 19 stops the hoisting motor 7 from releasing the pull rope 9 through the controller 22 with the receiving and sending function information, the controller 22 with the receiving and sending function information simultaneously opens the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, and then opens the air inlet fan 13 and the air outlet fan 14.
Step two, shadow playing: when the waterproof lifting box body 2 rises out of the water to a set position, the winch motor 7 stops releasing the pull rope 9, and the waterproof lifting box body 2 is fixed in position, the controller 22 with transceiving function information detects that the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14 are opened, and then detects that the air inlet fan 13 and the air outlet fan 14 are opened, so that the air in the waterproof lifting box body 2 flows. After the air in the waterproof lifting box body 2 is determined to flow, the controller 22 with the receiving and sending function information can start the projector and the laser machine to be electrified to start to display images and laser columns, light rays emitted by the projector and the laser machine lens are projected out through the toughened laminated double-layer glass plate 11, and pictures are generated on water curtains of rivers and lakes at night to beautify the surrounding environment.
The water sensor 19 is used to sense whether the watertight lifting cage 2 is underwater or on the water surface. Only if the water sensor 19 senses that the waterproof lifting box body 2 is on the water surface, the water sensor 19 controls the controller 22 with the receiving and sending function information to start the operations related to the 'shadow casting', such as the fan 13 for air inlet, the fan 14 for air outlet, the projector, the laser machine and the like.
The problem of humidity is solved: the projector and the laser machine are too long to be stored in water, if the humidity in the waterproof lifting box body 2 is large, the equipment is easy to be damped in the box, and the solution is as follows: the humidity sensor 21 sends a humidity signal in the waterproof lifting box body 2 to the controller 22 with the receiving and sending function information, the controller 22 with the receiving and sending function information repeats the steps of 'lifting to the water surface in the first step' after the humidity exceeds a specified value, the controller 22 with the receiving and sending function information instructs the hoisting motor 7 to lift the waterproof lifting box body 2 to the water surface, instructs the opening of the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, then opens the air inlet fan 13 and the air outlet fan 14, opens the constant temperature device in the waterproof lifting box body 2, and keeps the projector and the laser device in the waterproof lifting box body 2 in a dry environment.
Step three, storing in water: when the projector and the laser are finished, the controller 22 with the function of receiving and sending information turns off the power supply of the projector and the laser, after the projector and the laser are cooled, the temperature sensor 20 senses that the temperature in the waterproof lifting box body 2 reaches the temperature and can stop blowing, the controller 22 with the function of receiving and sending information turns off the fan 13 for air intake and the fan 14 for air outlet, and simultaneously close the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, so that air and water outside the waterproof lifting box body 2 can not flow into the waterproof lifting box body 2, and finally start the hoisting motor 7 to wind the pull rope 9, pull the floatable cabinet body 3 and the waterproof lifting box body 2 into water below the water surface, and when the water curtain picture can not be shadowed in the daytime, the waterproof lifting box body 2 can not be seen on the water surface of rivers and lakes, and the landscape of the water surface can not be influenced in the daytime.
Preferably: the winding device 6 comprises a winding motor 7, a fixed pulley 8 and a pull rope 9, the winding motor 7 is fixed on the bottom plate 4, the fixed pulley 8 is fixed below the sinking and floating cabinet body 3, one end of the pull rope 9 is connected with a rotating shaft of the winding motor 7, the pull rope 9 bypasses the fixed pulley 8, and the other end of the pull rope 9 is fixedly connected with the bottom plate 4.
The utility model has the advantages that: at the rivers in tourist attraction, the lake, this projector water protection device can sink into the rivers daytime, under the lake water, can not influence surface of water view and pleasure boat daytime, rise the surface of water night, best at fountain formula water curtain is played a shadow apart from the position, produce clear picture on the water curtain, the problem that the projector can not satisfy with the best distance position of playing a shadow of water curtain is played in the bank shadow play has been solved, do not influence the rivers promptly daytime, the surface of water view and the pleasure boat in lake, play the most clear picture of shadow on the best position of fountain water curtain night and watch as the night scene.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of a waterproof case and arrangement;
fig. 3 is a schematic diagram of the circuit structure of the present invention;
in the figure, 1 is a floatable base 1, 2 is a waterproof lifting box body 2, 3 is a floatable cabinet body 3, 4 is a bottom plate 4, 5 is a slidable inner and outer sleeve 5, 6 is a hoisting device 6, 7 is a hoisting motor 7, 8 is a fixed pulley 8, 9 is a pull rope 9, 10 is a steel bar 10, 11 is a toughened doubling glass plate 11, 12 is a door with a fan 12, 13 is an air inlet fan 13, 14 is an air outlet fan 14, 15 is an air pipe 15, 16 is an electromagnetic sealing valve 16, 17 is a controller 22 with a partition plate 17, 18 is an air guide hole 18, 19 is a water sensor 19, 20 is a temperature sensor 20, 21 is a humidity sensor 21, 22 is a controller 22 with transmitting and receiving functions, and a power switch 23.
Detailed Description
Embodiment 1, projector waterproof protection device capable of sinking and floating on water surface
As shown in figures 1, 2 and 3,
the projector waterproof protection device capable of sinking and floating on the water comprises a sinking and floating base 1 and a waterproof lifting box body 2, wherein the waterproof lifting box body 2 is fixed on the sinking and floating base 1,
the structure of the floatable base 1: comprises a sinking and floating cabinet body 3, a bottom plate 4, a plurality of inner and outer sleeves 5 capable of sliding and a hoisting device 6, wherein the sinking and floating cabinet body 3 is internally provided with foam with specific gravity lower than that of water, the shell of the sinking and floating cabinet body 3 is a hard shell made of stainless steel plates and with unchanged shape, a distance is arranged between the sinking and floating cabinet body 3 and the bottom plate 4, the sinking and floating cabinet body 3 and the bottom plate 4 are connected into a structure with adjustable height up and down by the inner and outer sleeves 5 capable of sliding, the sinking and floating cabinet body 3 is welded and fixed with an outer pipe of the inner and outer sleeves 5 capable of sliding, the bottom plate 4 is welded and fixed with an inner pipe of the inner and outer sleeves 5 capable of sliding, so that the sinking and floating cabinet body 3 and the bottom plate 4 are welded and fixed into a frame structure with the inner and outer sleeves 5 capable of sliding to change the distance in parallel movement but not shake, when in use, the upper ends of the inner and outer sleeves 5 capable of sliding are connected with the sinking and floating cabinet body 3, the lower end is fixed on the ground of the bottom of an underwater river or lake, the bottom plate 4 is arranged at the position close to the ground under the sinking and floating cabinet body 3, and the hoisting devices 6 are arranged under the sinking and floating cabinet body 3 and above the bottom plate 4;
the winding device 6 comprises a winding motor 7, a fixed pulley 8 and a pull rope 9, the winding motor 7 is fixed on the bottom plate 4, the fixed pulley 8 is fixed below the sinking and floating cabinet body 3, one end of the pull rope 9 is connected with a rotating shaft of the winding motor 7, the pull rope 9 bypasses the fixed pulley 8, and the other end of the pull rope 9 is fixedly connected with the bottom plate 4. The winding motor 7 is an underwater motor for a submersible pump, the fixed pulley 8 is made of stainless steel, and the pull rope 9 is made of nylon rope and is soft and waterproof.
The periphery of the waterproof lifting box body 2 is fixed with a plurality of stainless steel bars 10, the lower ends of the stainless steel bars 10 are fixedly connected with the upper surface of the sinking and floating cabinet body 3 in a welding manner, so that the waterproof lifting box body 2 is kept fixed at the position above the sinking and floating cabinet body 3. The length of the stainless steel strip 10 is determined according to the height of the shadow device and the water curtain in the waterproof lifting box body 2.
Structure of waterproof lifting box 2: one side of the waterproof lifting box body 2 is a toughened laminated double-layer glass plate 11 side, the other side is a door 12 side with a fan, the door 12 with the fan is provided with an air inlet fan 13 and an air outlet fan 14, the air inlet fan 13 and the air outlet fan 14 are connected with an electromagnetic sealing valve 16 on an air pipe 15 of the waterproof lifting box body 2, a partition plate 17 is arranged in the middle of the waterproof lifting box body 2, the middle of the waterproof lifting box body is provided with the partition plate 17 to separate the interior of the waterproof lifting box body 2 into an upper layer and a lower layer, and the middle of the waterproof lifting box body is provided with a plurality of air guide holes 18 on the partition plate 17. The upper layer and the lower layer are respectively provided with a projector for generating a water curtain picture and a laser machine for generating a laser light beam, and the periphery of the door 12 with the fan and the periphery of the waterproof lifting box body 2 are sealed by an elastic rubber gasket to prevent water from entering the waterproof lifting box body 2.
A water sensor 19 is arranged on a steel bar 10 at the lower position of the waterproof lifting box body 2, a temperature sensor 20, a humidity sensor 21 and a controller 22 with receiving and sending function information are arranged in the waterproof lifting box body 2, the controller 22 with receiving and sending function information is respectively connected with the water sensor 19, the temperature sensor 20, the humidity sensor 21, a switch of the hoisting motor 7, a motor switch of the air inlet fan 13, a motor switch of the air outlet fan 14, a switch of the electromagnetic sealing valve 16 of the air inlet fan 13 and a switch of the electromagnetic sealing valve 16 of the air outlet fan 14 in a wire mode; the waterproof lifting box body 2 is also provided with a power switch 23 of the projector and the laser machine, and the power switch 23 is connected with a controller 22 with the function of receiving and sending information. Various sensors are connected with a controller 22 with receiving and sending function information, and a water sensor 19 sends a signal whether the waterproof lifting box body 2 is above water or below water and whether the waterproof lifting box body is lifted out of a specified position of the water surface to the controller 22 with receiving and sending function information; the temperature sensor 20 and the humidity sensor 21 send the environmental temperature and humidity in the waterproof lifting box body 2 to the controller 22 with the receiving and sending function information, the controller 22 with the receiving and sending function information determines whether to ventilate and dehumidify at constant temperature or not firstly according to the position of the waterproof lifting box body 2 and the temperature and humidity environment of the shadow releasing equipment in the waterproof lifting box body, and then the projector and the laser shadow releasing equipment are started.
And (3) a shadow casting work flow:
step one, rising the water level: each inner and outer sleeve 5 capable of sliding is made of two stainless steel pipes which are sleeved inside and outside properly, when the controller 22 with the receiving and sending function information enables the hoisting motor 7 to release the pull rope 9, the sinking and floating cabinet body 3 can rise automatically by utilizing buoyancy to enable the waterproof lifting box body 2 to rise out of the water surface, when the water sensor 19 below the waterproof lifting box body 2 leaves the water surface, the water sensor 19 stops the hoisting motor 7 from releasing the pull rope 9 through the controller 22 with the receiving and sending function information, the controller 22 with the receiving and sending function information simultaneously opens the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, and then opens the air inlet fan 13 and the air outlet fan 14.
Step two, shadow playing: when the waterproof lifting box body 2 rises out of the water to a set position, the winch motor 7 stops releasing the pull rope 9, and the waterproof lifting box body 2 is fixed in position, the controller 22 with transceiving function information detects that the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14 are opened, and then detects that the air inlet fan 13 and the air outlet fan 14 are opened, so that the air in the waterproof lifting box body 2 flows. After the air in the waterproof lifting box body 2 is determined to flow, the controller 22 with the receiving and sending function information can start the projector and the laser machine to be electrified to start to display images and laser columns, light rays emitted by the projector and the laser machine lens are projected out through the toughened laminated double-layer glass plate 11, and pictures are generated on water curtains of rivers and lakes at night to beautify the surrounding environment.
The water sensor 19 is used to sense whether the watertight lifting cage 2 is underwater or on the water surface. Only if the water sensor 19 senses that the waterproof lifting box body 2 is on the water surface, the water sensor 19 controls the controller 22 with the receiving and sending function information to start the operations related to the 'shadow casting', such as the fan 13 for air inlet, the fan 14 for air outlet, the projector, the laser machine and the like.
The problem of humidity is solved: the projector and the laser machine are too long to be stored in water, if the humidity in the waterproof lifting box body 2 is large, the equipment is easy to be damped in the box, and the solution is as follows: the humidity sensor 21 sends a humidity signal in the waterproof lifting box body 2 to the controller 22 with the receiving and sending function information, the controller 22 with the receiving and sending function information repeats the steps of 'lifting to the water surface in the first step' after the humidity exceeds a specified value, the controller 22 with the receiving and sending function information instructs the hoisting motor 7 to lift the waterproof lifting box body 2 to the water surface, instructs the opening of the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, then opens the air inlet fan 13 and the air outlet fan 14, opens the constant temperature device in the waterproof lifting box body 2, and keeps the projector and the laser device in the waterproof lifting box body 2 in a dry environment.
Step three, storing in water: when the projector and the laser are finished, the controller 22 with the function of receiving and sending information turns off the power supply of the projector and the laser, after the projector and the laser are cooled, the temperature sensor 20 senses that the temperature in the waterproof lifting box body 2 reaches the temperature and can stop blowing, the controller 22 with the function of receiving and sending information turns off the fan 13 for air intake and the fan 14 for air outlet, and simultaneously close the electromagnetic sealing valve 16 of the air inlet fan 13 and the electromagnetic sealing valve 16 of the air outlet fan 14, so that air and water outside the waterproof lifting box body 2 can not flow into the waterproof lifting box body 2, and finally start the hoisting motor 7 to wind the pull rope 9, pull the floatable cabinet body 3 and the waterproof lifting box body 2 into water below the water surface, and when the water curtain picture can not be shadowed in the daytime, the waterproof lifting box body 2 can not be seen on the water surface of rivers and lakes, and the landscape of the water surface can not be influenced in the daytime.
Claims (2)
1. Can sink can float in projector water proof protection device of surface of water, including can sinking and floating base (1) and waterproof lifting box body (2), waterproof lifting box body (2) are fixed on can sinking and floating base (1), its characterized in that:
the structure of the floatable base (1) is as follows: the novel floating cabinet comprises a floating cabinet body (3), a bottom plate (4), a plurality of inner and outer sliding sleeves (5) and a hoisting device (6), wherein foam with specific gravity lower than that of water is arranged in the floating cabinet body (3), a shell of the floating cabinet body (3) is a hard shell which is made of steel plates and has an unchanged shape, a distance is reserved between the floating cabinet body (3) and the bottom plate (4), the floating cabinet body (3) and the bottom plate (4) are connected by the inner and outer sliding sleeves (5) to form a structure with adjustable height up and down, and the hoisting device (6) is arranged below the floating cabinet body (3) and above the bottom plate (4);
a plurality of steel bars (10) are fixed on the periphery of the waterproof lifting box body (2), and the lower ends of the steel bars (10) are fixedly connected with the upper surface of the sinking and floating cabinet body (3), so that the waterproof lifting box body (2) is kept fixed at the upper position of the sinking and floating cabinet body (3);
the structure of the waterproof lifting box body (2): one surface of the waterproof lifting box body (2) is a toughened doubling double-layer glass plate (11) surface, the other surface is a door (12) surface with a fan, the door (12) with the fan is provided with an air inlet fan (13) and an air outlet fan (14), the air inlet fan (13) and the air outlet fan (14) are connected with an electromagnetic sealing valve (16) on an air pipe (15) of the waterproof lifting box body (2), a partition plate (17) is arranged in the middle of the waterproof lifting box body (2), the middle of the waterproof lifting box body is provided with the partition plate (17) to separate the interior of the waterproof lifting box body (2) into an upper layer and a lower layer, and the partition plate (17) is provided with a plurality of air guide holes (18);
a water sensor (19) is arranged on a steel bar (10) at the lower position of the waterproof lifting box body (2), a temperature sensor (20), a humidity sensor (21) and a controller (22) with receiving and sending function information are arranged in the waterproof lifting box body (2), the controller (22) with receiving and sending function information is respectively connected with the water sensor (19), the temperature sensor (20), the humidity sensor (21) and a winding motor (7) in a wire mode, and a motor switch of an air inlet fan (13), a motor switch of an air outlet fan (14), a switch of an electromagnetic sealing valve (16) of the air inlet fan (13) and a switch of an electromagnetic sealing valve (16) of the air outlet fan (14) are respectively connected with the water sensor (19), the temperature sensor (20), the humidity sensor (21) and the switch of the winding motor (7) in a wire mode; the waterproof lifting box body (2) is also provided with a power switch (23) of the projector and the laser machine, and the power switch (23) is connected with a controller (22) with the receiving and sending function information.
2. The waterproof protection device of a projector capable of sinking and floating on the water surface according to claim 1, wherein: the winding device (6) comprises a winding motor (7), a fixed pulley (8) and a pull rope (9), the winding motor (7) is fixed on the bottom plate (4), the fixed pulley (8) is fixed below the sinking and floating cabinet body (3), one end of the pull rope (9) is connected with a rotating shaft of the winding motor (7), the fixed pulley (8) is wound around the pull rope (9), and the other end of the pull rope (9) is fixedly connected with the bottom plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018859.9U CN213840283U (en) | 2020-09-09 | 2020-09-09 | Projector waterproof protection device capable of sinking and floating on water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018859.9U CN213840283U (en) | 2020-09-09 | 2020-09-09 | Projector waterproof protection device capable of sinking and floating on water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213840283U true CN213840283U (en) | 2021-07-30 |
Family
ID=77004903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022018859.9U Expired - Fee Related CN213840283U (en) | 2020-09-09 | 2020-09-09 | Projector waterproof protection device capable of sinking and floating on water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213840283U (en) |
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2020
- 2020-09-09 CN CN202022018859.9U patent/CN213840283U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210730 |