Based on big data wisdom building monitored control system
Technical Field
The invention relates to the technical field of big data intelligent building monitoring, in particular to an intelligent building monitoring system based on big data.
Background
Big data is a data set which cannot be captured, managed and processed by a conventional software tool within a certain time range, and is massive, high-growth rate and diversified information assets which can have stronger decision-making power, insight discovery power and flow optimization capability only by a new processing mode; big data is applied to the fields of e-commerce, traffic, finance, retail sale, medical treatment, entertainment, building and the like; in the building industry, big data intelligent building monitoring is organically combined with building monitoring through big data; the building monitoring means that the building structure of building body or to the power supply in the building, the illumination, it is aired exhaust, the drainage, refrigeration, heat and the surrounding environment control through the controller to guaranteed the security and the travelling comfort of building, but because prior art is not enough, in the low area of rainfall, for example china western, the wall on building can the condition of ftractureing after sunshine shines for a long time, consequently need the manual work regularly to monitor the wall, the humidity of building wall is maintained to rethread water spray, but its process is troublesome, inefficiency.
Some technical solutions related to intelligent building monitoring system based on big data also appear in the prior art, for example, a chinese patent with application number CN201811266855.3 discloses an intelligent building monitoring system based on big data, which includes: the intelligent monitoring system comprises a monitoring host, a video monitoring device, a power distribution monitoring device, a fire monitoring device, an entrance guard monitoring device, a heating monitoring device and a plurality of mobile terminals, wherein the video monitoring device is used for acquiring image information of an elevator, a passage, a parking lot and public facilities at 360 degrees; the monitoring host acquires all monitoring information and sends corresponding instructions to the mobile terminal according to the monitoring information, and the mobile terminal sends the field maintenance condition to the monitoring host; the technical scheme can monitor the environmental information and the safety information of the building in an all-around manner, and can ensure the comfort and the safety of the life of people; but this technical scheme can not carry out the humidity control to the wall of building to make the wall on the building can appear the fracture condition after sunshine shines for a long time, influence the security that the inside people of building lived, and then cause the limitation of this scheme.
In view of the above, in order to overcome the above technical problems, the present invention provides a big data based intelligent building monitoring system, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a big-data-based intelligent building monitoring system, wherein a spraying device in the system monitors the humidity on the outer wall of a building through a monitoring device, and then is matched with the spraying device to spray rainwater on the outer wall of the building, so that the humidity of the outer wall of the building reaches a preset threshold value under the monitoring of the system, and the service life of the outer wall of the building is further prolonged.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a big data-based intelligent building monitoring system which comprises a database center, an acquisition device, a monitoring device and a spraying device, wherein the database center is connected with the monitoring device; the database center is connected with the acquisition device, the monitoring device and the spraying device through networks for data transmission; the acquisition device is used for acquiring weather data around the building; the monitoring device comprises a humidity sensor; the humidity sensor is arranged on the outer wall of the building and used for detecting the humidity of the outer wall of the building; the database center is used for sorting and analyzing the data of the acquisition device and the monitoring device; the spraying device is used for spraying the outer wall of the building;
the spraying device comprises a water pipe, a base block, a spray head and a controller; the water pipe is positioned around the outer wall, and the outer wall of the water pipe is fixedly connected with the base block; the base block is fixedly connected to the outer wall, and an L-shaped hole is formed in the base block; one end of the L-shaped hole is communicated with the inside of the water pipe, the other end of the L-shaped hole is communicated with the outer wall of the base block, and the other end of the L-shaped hole is fixedly connected with the spray head; the spray head is arranged towards the outer wall; a rectangular groove is formed in the base block; the rectangular groove is positioned in the middle section of the L-shaped hole and is connected with a sliding block in a sliding manner; the sliding block can slide up and down along the rectangular groove, and an air hole is formed in the sliding block; the air hole can be communicated with the L-shaped hole after the sliding block moves; a first motor is fixedly connected to the outer wall; the output shaft of the first motor is fixedly connected with a rotating block; a thread rope is arranged on the outer wall of the rotating block, and the other end of the thread rope is connected with a sliding block; the sliding block can slide along the rectangular groove under the driving of the cord; the inner wall of one end of the water pipe close to the ground is rotatably connected with a roller; the rolling rod is fixedly connected with a disc; the disc can block the other end of the water pipe after the roller rotates; a second motor is embedded in the outer wall; the output shaft of the second motor is connected with one end of the rolling rod; the inner wall of the other end of the water pipe is fixedly connected with a pressure sensor; the controller is used for controlling the spraying device to automatically operate;
when the device is used, due to the defects of the prior art, in areas with low rainfall, such as western China, the wall surface on a building cracks after being irradiated by sunlight for a long time, so that the wall surface needs to be monitored manually and periodically, and the humidity of the wall surface of the building is maintained by spraying water, but the process is troublesome and labor-consuming and has low efficiency;
therefore, the controller is started by the operator, the controller can control the second motor to rotate, the second motor is rotated to drive the roller to rotate, the roller can drive the disc to block the other end of the water pipe, rainwater on the top of the building can flow in along the other end of the water pipe in the rain falling process, the water can extrude the pressure sensor on the inner wall of the water pipe, the value of the pressure sensor can change under the action of water pressure, the water level of the rainwater in the water pipe is judged through the pressure sensor and then is matched with the disc, the water quantity in the water pipe is ensured, the collection device can collect the precipitation quantity and the temperature of one week in the future, the humidity sensor in the monitoring device can detect the humidity of the outer wall of the building, the controller can control the first motor to rotate through the central analysis of the database, and the rotating first motor can drive the fixedly connected rotating block to rotate if the humidity of the outer wall of the building is smaller than a preset threshold value, the rotating block can wind the line rope, the line rope drives the sliding block to slide along the rectangular groove under the pulling action, the air hole is communicated with the L-shaped hole after the sliding block moves, rainwater in the water pipe enters along one end of the L-shaped hole and is discharged along the other end of the L-shaped hole, finally, the outer wall is sprayed through the spray head, and when the humidity sensor senses that the humidity on the outer wall reaches a preset threshold value, the controller can control the first motor to drive the rotating block to rotate reversely, so that the sliding block does not slide along the rectangular groove under the action of self gravity after being free of the line rope, the air hole deviates from the L-shaped hole under the sliding of the sliding block, and the effect of preventing the rainwater in the L-shaped hole from flowing is achieved;
the invention monitors the humidity on the building outer wall through the monitoring device, and then is matched with the spraying device to spray rainwater on the building outer wall, so that the humidity of the building outer wall reaches a preset threshold value under the monitoring of the system, and the service life of the building outer wall is further prolonged.
Preferably, a spring is arranged in the rectangular groove; the spring is positioned above the sliding block, one end of the spring is connected with the groove wall of the rectangular groove, and the other end of the spring is connected with the sliding block; during the use, a motor drives and changes the piece and loosen the back with the cotton rope, and the slider slides along the rectangular channel under the effect of gravity, and the spring can transmit elasticity to the slider on simultaneously, and the slider receives the dual function of spring force and self gravity, has reduced the slider and has driven the time that the L shape hole was kept away from to the gas pocket, prevents that the rainwater from continuing to flow along L shape hole in slider removal time, causes unnecessary rainwater along the shower nozzle blowout, and then has improved the precision of shower nozzle blowout rainwater.
Preferably, the rotating block is provided with a taper; the rope can be wound around the rotating block and then slides down along the outer wall of the rotating block; when the automatic rain-proof device is used, the motor I drives the rotating block to rotate, the rotating block drives the cotton rope to wind, the sliding block is driven to slide along the rectangular groove in the cotton rope winding process, the air hole is communicated with the L-shaped hole under the driving of the sliding block, the cotton rope can slide along the outer wall of the rotating block along with the rotation of the rotating block, the cotton rope returns to an initial state, the sliding block slides along the rectangular groove under the elastic action and the self-gravity action of the spring, the air hole is far away from the L-shaped hole under the driving of the sliding block, the operation is repeated, the effect of intermittently opening the L-shaped hole is achieved, the range of rainwater sprayed out of the collision head is changed, the range of the rainwater covering the outer wall of a building is enlarged, and the actual application effect of the automatic rain-proof device is improved.
Preferably, the outer wall of the rotating block is rotatably connected with a rotating rod; one end of the cord is fixedly connected to the rotating rod, and the outer wall of the cord is also sleeved with a sheath; when the rope guide device is used, the rotating rod is connected to the rotating block in a rotating mode, the rotating block is connected with the rope through the rotating rod, the situation that one end of the rope is broken after being twisted for a long time is prevented, meanwhile, the rotating block is separated from the rope through the sheath in the contact process, abrasion between the rope and the rotating block is reduced, the service life of the rope is prolonged, and the stability of the rope guide device is improved.
Preferably, the scraping block is connected to the inner part of the water pipe in a sliding manner; the section of the scraping block is circular; the sliding block and the scraping block are both made of magnetic materials, and the magnetic properties of the sliding block and the scraping block are opposite; during the use, the slider removes the in-process and can drive through magnetic force and scrape the piece and scrape along the inner wall of water pipe and move to make the impurity on the water pipe inner wall that is close to the base block scrape the piece and scrape the action down and drop, prevent that the impurity card from influencing the rainwater flow in the one end in L shape hole, thereby improved the rainwater along the stability that L shape hole flows.
Preferably, the outer wall of the scraping block is provided with an annular groove; the section of the annular groove is semicircular, and a through groove is formed in the bottom of the annular groove; the through groove is communicated with the inner wall of the scraping block; when the rain water scraper is used, the sliding block moves to drive the scraping block to move to the periphery of one end of the L-shaped hole, so that rain water can flow into the annular groove from the inner wall of the scraping block along the through groove and then flows into the L-shaped hole from the annular groove, the L-shaped hole is prevented from being blocked by the scraping block under the driving of the sliding block, and the practical application effect of the rain water scraper is improved.
The invention has the following beneficial effects:
1. the invention monitors the humidity on the building outer wall through the monitoring device, and then is matched with the spraying device to spray rainwater on the building outer wall, so that the humidity of the building outer wall reaches a preset threshold value under the monitoring of the system, and the service life of the building outer wall is further prolonged.
2. According to the spraying device, after the first motor of the spraying device drives the rotating block to loosen the cotton rope, the sliding block slides along the rectangular groove under the action of gravity, meanwhile, the spring can transmit elastic force to the sliding block, the sliding block is under the dual action of the elastic force of the spring and the gravity of the sliding block, the time that the sliding block drives the air hole to be far away from the L-shaped hole is shortened, rainwater is prevented from continuously flowing along the L-shaped hole within the moving time of the sliding block, the redundant rainwater is prevented from being sprayed out along the spray head, and the precision of the rainwater sprayed out by the spray head is improved.
3. In the invention, when a motor I of the spraying device drives the rotating block to rotate, the rotating block drives the cotton rope to wind, the sliding block is driven to slide along the rectangular groove in the cotton rope winding process, so that the air hole is communicated with the L-shaped hole under the driving of the sliding block, the cotton rope can slide along the outer wall of the rotating block along with the rotation of the rotating block, the cotton rope returns to an initial state, the sliding block slides along the rectangular groove under the elastic action of the spring and the self gravity action, so that the air hole is far away from the L-shaped hole under the driving of the sliding block, the process is repeated, the effect of intermittently opening the L-shaped hole is achieved, the range of rainwater sprayed out by the collision head is changed, the range of rainwater covering the outer wall of a building is enlarged, and the practical application effect of the invention is further improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a view of the location of the spray assembly of the present invention;
FIG. 2 is a cross-sectional view of the spray assembly of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is an enlarged view at C of FIG. 2;
FIG. 6 is an internal structural view of a base block in the spray apparatus of the present invention;
in the figure: the water pipe comprises a water pipe 1, a rolling rod 11, a disc 12, a second motor 13, a pressure sensor 14, a base block 2, an L-shaped hole 21, a rectangular groove 22, a spring 23, a spray head 3, a sliding block 4, an air hole 41, a first motor 5, a rotating block 51, a wire rope 52, a rotating rod 53, a sheath 54, a scraping block 6, an annular groove 61 and a through groove 62.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the intelligent building monitoring system based on big data according to the present invention includes a database center, a collection device, a monitoring device and a spraying device; the database center is connected with the acquisition device, the monitoring device and the spraying device through networks for data transmission; the acquisition device is used for acquiring weather data around the building; the monitoring device comprises a humidity sensor; the humidity sensor is arranged on the outer wall of the building and used for detecting the humidity of the outer wall of the building; the database center is used for sorting and analyzing the data of the acquisition device and the monitoring device; the spraying device is used for spraying the outer wall of the building;
the spraying device comprises a water pipe 1, a base block 2, a spray head 3 and a controller; the water pipe 1 is positioned around the outer wall, and the outer wall of the water pipe 1 is fixedly connected with the base block 2; the base block 2 is fixedly connected to an outer wall, and an L-shaped hole 21 is formed in the base block 2; one end of the L-shaped hole 21 is communicated with the inside of the water pipe 1, the other end of the L-shaped hole is communicated with the outer wall of the base block 2, and the other end of the L-shaped hole 21 is fixedly connected with the spray head 3; the spray head 3 faces the outer wall; a rectangular groove 22 is formed in the base block 2; the rectangular groove 22 is positioned in the middle section of the L-shaped hole 21, and the sliding block 4 is connected to the rectangular groove 22 in a sliding manner; the sliding block 4 can slide up and down along the rectangular groove 22, and an air hole 41 is formed in the sliding block 4; the air hole 41 can be communicated with the L-shaped hole 21 after the sliding block 4 moves; the outer wall is fixedly connected with a first motor 5; the output shaft of the first motor 5 is fixedly connected with a rotating block 51; a thread rope 52 is arranged on the outer wall of the rotating block 51, and the other end of the thread rope 52 is connected with the sliding block 4; the sliding block 4 can slide along the rectangular groove 22 under the driving of the wire rope 52; the inner wall of one end of the water pipe 1 close to the ground is rotatably connected with a roller 11; the rolling rod 11 is fixedly connected with a disc 12; the disc 12 can block the other end of the water pipe 1 after the rolling rod 11 rotates; a second motor 13 is embedded in the outer wall; the output shaft of the second motor 13 is connected with one end of the rolling rod 11; the inner wall of the other end of the water pipe 1 is fixedly connected with a pressure sensor 14; the controller is used for controlling the spraying device to automatically operate;
when the device is used, due to the defects of the prior art, in areas with low rainfall, such as western China, the wall surface on a building cracks after being irradiated by sunlight for a long time, so that the wall surface needs to be monitored manually and periodically, and the humidity of the wall surface of the building is maintained by spraying water, but the process is troublesome and labor-consuming and has low efficiency;
therefore, the controller is started by the operator, the controller controls the second motor 13 to rotate, the second motor 13 is rotated to drive the roller 11 to rotate, the roller 11 rotates to drive the disc 12 to block the other end of the water pipe 1, so that rainwater on the top of the building flows in along the other end of the water pipe 1 in the raining process, the water extrudes the pressure sensor 14 on the inner wall of the water pipe 1, the value of the pressure sensor 14 is changed under the action of water pressure, the water level of the rainwater in the water pipe 1 is judged through the pressure sensor 14 and then matched with the disc 12, the water quantity in the water pipe 1 is ensured, the collection device collects the precipitation quantity and the temperature of the future week, the humidity sensor in the monitoring device detects the humidity of the outer wall of the building, the humidity sensor is analyzed through the center of the database, and if the humidity of the outer wall of the building is smaller than a preset threshold value, the controller controls the first motor 5 to rotate, the rotating first motor 5 can drive the fixedly connected rotating block 51 to rotate, the rotating block 51 can wind the rope 52, the rope 52 drives the sliding block 4 to slide along the rectangular groove 22 under the pulling action, the air hole 41 is communicated with the L-shaped hole 21 after the sliding block 4 moves, rainwater in the water pipe 1 enters along one end of the L-shaped hole 21 and is discharged along the other end of the L-shaped hole 21, finally, the outer wall is sprayed through the spray head 3, and after the humidity sensor senses that the humidity on the outer wall reaches a preset threshold value, the controller can control the first motor 5 to drive the rotating block 51 to rotate reversely, so that the sliding block 4 does not slide along the rectangular groove 22 under the self-gravity action after the rope 52 is not received, the air hole 41 deviates from the L-shaped hole 21 under the sliding of the sliding block 4, and the effect of preventing the rainwater in the L-shaped hole 21 from flowing is achieved;
the invention monitors the humidity on the building outer wall through the monitoring device, and then is matched with the spraying device to spray rainwater on the building outer wall, so that the humidity of the building outer wall reaches a preset threshold value under the monitoring of the system, and the service life of the building outer wall is further prolonged.
In one embodiment of the present invention, a spring 23 is disposed in the rectangular groove 22; the spring 23 is positioned above the sliding block 4, one end of the spring 23 is connected with the groove wall of the rectangular groove 22, and the other end of the spring 23 is connected with the sliding block 4; during the use, a motor 5 drives changes piece 51 and loosens back with cotton rope 52, slider 4 slides along rectangular channel 22 under the effect of gravity, spring 23 can transmit elasticity to slider 4 on simultaneously, slider 4 receives the dual function of spring 23 elasticity and self gravity, reduced slider 4 and driven the time that L shape hole 21 was kept away from to gas pocket 41, prevent that the rainwater from continuing to flow along L shape hole 21 in slider 4 migration time, cause unnecessary rainwater along the blowout of shower nozzle 3, and then improved the precision of 3 spun rainwater of shower nozzle.
As an embodiment of the present invention, the rotary block 51 is provided in a tapered shape; the cord 52 can be wound around the rotating block 51 and then slide down along the outer wall of the rotating block 51; when the intelligent building window is used, the first motor 5 drives the rotating block 51 to rotate, the rotating block 51 drives the cord 52 to wind, the cord 52 drives the sliding block 4 to slide along the rectangular groove 22 in the winding process, the air hole 41 is communicated with the L-shaped hole 21 under the driving of the sliding block 4, the cord 52 can slide down along the outer wall of the rotating block 51 along with the rotation of the rotating block 51, the cord 52 returns to the initial state, the sliding block 4 slides along the rectangular groove 22 under the elastic action and the self-gravity action of the spring 23, the air hole 41 is far away from the L-shaped hole 21 under the driving of the sliding block 4, and the operation is repeated, so that the effect of intermittently opening the L-shaped hole 21 is achieved, the range of rainwater sprayed by the collision head is changed, the range of the rainwater covering the outer wall is enlarged, and the practical application effect of the intelligent building window is improved.
In one embodiment of the present invention, a rotating rod 53 is rotatably connected to the outer wall of the rotating block 51; one end of the rope 52 is fixedly connected to the rotating rod 53, and the outer wall of the rope 52 is also sleeved with a sheath 54; when the rope rotating device is used, the rotating rod 53 is rotatably connected to the rotating block 51, so that the rotating block 51 is connected with the rope 52 through the rotating rod 53, the situation that one end of the rope 52 is broken after being twisted for a long time is prevented, and meanwhile, the rotating block 51 is separated from the rope 52 through the sheath 54 in the contact process, so that the abrasion between the rope 52 and the rotating block 51 is reduced, the service life of the rope 52 is prolonged, and the stability of the rope rotating device is improved.
As an embodiment of the invention, the scraping block 6 is connected with the inside of the water pipe 1 in a sliding way; the section of the scraping block 6 is circular; the sliding block 4 and the scraping block 6 are both made of magnetic materials, and the magnetic properties of the sliding block 4 and the scraping block 6 are opposite; during the use, slider 4 removes the in-process and can drive through magnetic force and scrape piece 6 and scrape along the inner wall of water pipe 1 to make the impurity on the 1 inner wall of water pipe that is close to base block 2 scrape 6 and scrape the effect and drop down, prevent that the impurity card from influencing the rainwater flow at the one end in L shape hole 21, thereby improved the rainwater along the stability that L shape hole 21 flows.
As an embodiment of the present invention, the outer wall of the scraping block 6 is provided with an annular groove 61; the section of the annular groove 61 is semicircular, and a through groove 62 is formed at the bottom of the annular groove 61; the through groove 62 is communicated with the inner wall of the scraping block 6; when the rain-proof wiper is used, the sliding block 4 moves to drive the wiping block 6 to move to the periphery of one end of the L-shaped hole 21, so that rain water flows into the annular groove 61 from the inner wall of the wiping block 6 along the through groove 62 and then flows into the L-shaped hole 21 from the annular groove 61, the L-shaped hole 21 is prevented from being blocked by the wiping block 6 under the drive of the sliding block 4, and the actual application effect of the rain-proof wiper is further improved.
When the device is used, a worker starts the controller, the controller controls the second motor 13 to rotate, the second motor 13 is rotated to drive the roller 11 to rotate, the roller 11 rotates to drive the disc 12 to plug the other end of the water pipe 1, so that rainwater on the top of a building flows in along the other end of the water pipe 1 in the raining process, the water extrudes the pressure sensor 14 on the inner wall of the water pipe 1, the value of the pressure sensor 14 changes under the action of water pressure, the water level of the rainwater in the water pipe 1 is judged through the pressure sensor 14 and then matched with the disc 12, the water quantity in the water pipe 1 is ensured, the collection device can collect the precipitation quantity and the temperature of the future week, the humidity sensor in the monitoring device can detect the humidity of the outer wall of the building, the humidity is analyzed through the center of the database, and when the humidity of the outer wall of the building is smaller than a preset threshold value, the controller can control the first motor 5 to rotate, the rotating first motor 5 can drive the fixedly connected rotating block 51 to rotate, the rotating block 51 can wind the rope 52, the rope 52 drives the sliding block 4 to slide along the rectangular groove 22 under the pulling action, the air hole 41 is communicated with the L-shaped hole 21 after the sliding block 4 moves, rainwater in the water pipe 1 enters along one end of the L-shaped hole 21 and is discharged along the other end of the L-shaped hole 21, finally, the outer wall is sprayed through the spray head 3, and after the humidity sensor senses that the humidity on the outer wall reaches a preset threshold value, the controller can control the first motor 5 to drive the rotating block 51 to rotate reversely, so that the sliding block 4 does not slide along the rectangular groove 22 under the self-gravity action after the rope 52 is not received, the air hole 41 deviates from the L-shaped hole 21 under the sliding of the sliding block 4, and the effect of preventing the rainwater in the L-shaped hole 21 from flowing is achieved; when the first motor 5 drives the rotating block 51 to rotate, the rotating block 51 drives the cord 52 to wind, the cord 52 drives the sliding block 4 to slide along the rectangular groove 22 in the winding process, so that the air hole 41 is communicated with the L-shaped hole 21 under the driving of the sliding block 4, the cord 52 can slide down along the outer wall of the rotating block 51 along with the rotation of the rotating block 51, the cord 52 returns to the initial state, the sliding block 4 slides along the rectangular groove 22 under the elastic action and the self-gravity action of the spring 23, so that the air hole 41 is far away from the L-shaped hole 21 under the driving of the sliding block 4, the operation is repeated, the effect of intermittently opening the L-shaped hole 21 is achieved, the range of rainwater sprayed by the collision head is changed, the range of the rainwater covering the building outer wall is enlarged, the practical application effect of the invention is improved, the rotating rod 53 is rotatably connected to the rotating block 51, so that the rotating block 51 is connected with the cord 52 through the rotating rod 53, the condition that one end of the cord 52 is broken after being twisted for a long time is prevented, meanwhile, the rotating block 51 is blocked by the sheath 54 in the contact process of the cord 52 and the cord 52, so that the abrasion between the cord 52 and the rotating block 51 is reduced, the service life of the cord 52 is further prolonged, the stability of the invention is improved, the sliding block 4 can drive the scraping block 6 to scrape along the inner wall of the water pipe 1 by magnetic force in the moving process, so that impurities on the inner wall of the water pipe 1 close to the base block 2 fall off under the scraping action of the scraping block 6, the impurities are prevented from being blocked at one end of the L-shaped hole 21 to influence the flowing of rainwater, so that the flowing stability of the rainwater along the L-shaped hole 21 is improved, the scraping block 6 is driven by the sliding block 4 to move to the periphery of one end of the L-shaped hole 21, so that the rainwater can flow into the annular groove 61 from the inner wall of the scraping block 6 along the through groove 62, then flow into the L-shaped hole 21 from the annular groove 61, and the L-shaped hole 21 is prevented from being blocked by the scraping block 6 under the driving of the sliding block 4, thereby improving the practical application effect of the invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.