A building construction safety protection device with multiple functions

Abstract

The present invention relates to the technical field of safety protection devices, and discloses a building construction safety protection device with multiple functions, including a protection board. A support frame is fixed to the front part of the protection board. A lifting device is arranged inside the protection board. A support device is arranged on the right side of the lifting device. A cleaning device is arranged on the front part of the protection board. The lifting device includes a motor, a threaded rod, a lifting protection board, a connecting rod one, a rotating rod, a connecting rod, and a protection net. When the lifting protection board rises, it increases the protection area of the device, prevents pedestrians from entering the construction site, causing personal danger and blocking the construction progress, ensures the construction progress, and the protection net can block the stones or waste materials falling from above the construction site, preventing passers-by from being injured by the stones falling from the construction site, protecting the safety of pedestrians, improving the safety of the device, and ensuring the normal operation of the construction site.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection devices, and specifically provides a multi-functional construction safety protection device. Background Art

[0002] Construction is a high-risk activity, and there are many potential safety hazards at the construction site, such as falls from height, object strikes, collapses, electric shocks, etc. Construction safety accidents not only cause casualties and property losses but also affect the project progress and corporate reputation. Therefore, taking effective safety protection measures is crucial for ensuring the life safety and physical health of construction workers. With the development of the construction industry and the increasing emphasis on construction safety, the market demand for construction safety protection devices is constantly changing. Construction enterprises and owners pay more and more attention to the versatility, adaptability, intelligence level, and reliability of safety protection devices, and hope to provide more comprehensive, efficient, and convenient safety protection solutions. Therefore, developing a multi-functional construction safety protection device has become an inevitable trend in the industry development.

[0003] The invention with the publication number of CN117839363B discloses a construction safety protection device, which relates to the technical field of construction protection and includes a connecting sleeve and a rotating box. The rotating box is rotatably connected to the top of the connecting sleeve in a fixed-axis manner. The construction safety protection device further includes a water spraying component and a first fixing plate. The first fixing plate is fixedly connected to the upper surface of the rotating box, and the water spraying component is rotatably connected to the top of the first fixing plate. An intermittent rotation component is arranged in the connecting sleeve and is used to drive the rotating box to rotate intermittently. A swinging component is arranged in the rotating box and is in transmission connection with the intermittent transmission component to drive the water spraying component to swing. A water supply component is arranged in the rotating box and is in transmission connection with the swinging component to drive the water spraying component to spray water when it swings upward. This solves the problem that in the existing construction settings, the dust removal range is very limited, so that workers work in the dust for a long time, which affects their physical health. However, when this device is in use, it is difficult to block the stones or sundries falling from the construction building, which may cause harm to passing pedestrians and workers. Therefore, a multi-functional construction safety protection device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-functional construction safety protection device for the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a multi-functional building construction safety protection device, including a protection plate. A support frame is fixed to the front of the protection plate. A lifting device is arranged inside the protection plate. A support device is arranged on the right side of the lifting device. A cleaning device is arranged on the front of the protection plate. The lifting device includes a motor, a threaded rod, a lifting protection plate, a connecting rod one, a rotating rod, a connecting rod, and a protection net. The motor is fixedly connected to the inner wall of the protection plate. The threaded rod is fixedly connected to the output end of the motor. The lifting protection plate is threadedly connected to the surface of the threaded rod. The connecting rod one is fixedly connected to the inner wall of the lifting protection plate. The rotating rod is rotatably connected to the surface of the connecting rod one. The connecting rod is fixedly connected to the left side of the rotating rod. The protection net is fixedly connected to the left side of the rotating rod. The lifting protection plate is slidably connected to the inner wall of the protection plate. The rotating rod contacts the lifting protection plate. When the lifting protection plate rises, it increases the protection area of the device, prevents pedestrians from entering the construction site, causing personal danger and blocking the construction progress, ensures the construction progress, and the protection net can block the stones or waste materials falling from above the construction site, preventing passers-by from being injured by the stones falling from the construction site, protecting the safety of pedestrians, improving the safety of the device, and ensuring the normal operation of the construction site.

[0006] Preferably, the support device includes a connecting rod two, an outer rod, an inner rod, an inclined block, a protective round block, an elastic telescopic rod, and an arc-shaped convex block. The connecting rod two is fixedly connected to the inner wall of the protection plate. The outer rod is rotatably connected to the surface of the connecting rod two through a torsion spring. The inner rod is slidably connected to the inner wall of the outer rod. The inclined block is fixedly connected to the left side of the lifting protection plate. The support device also includes a protective round block, an elastic telescopic rod, and an arc-shaped convex block. The protective round block is fixedly connected to the inner wall of the inner rod. The elastic telescopic rod is fixedly connected to the left side of the protective round block. The arc-shaped convex block is fixedly connected to the left side of the elastic telescopic rod. The surface of the outer rod contacts the inner wall of the protection plate. The inclined block contacts the outer rod. A hole is provided on the surface of the outer rod, and the hole contacts the arc-shaped convex block. An elastic member is arranged between the inner wall of the outer rod and the top of the inner rod. The inner rod supports the device, improves the stability of the device, prevents the stability of the device from decreasing due to elevation, and also prevents it from being blown down by strong winds in windy and rainy weather and hitting pedestrians and workers, causing harm to personnel, thereby protecting the safety of pedestrians, ensuring the normal progress of construction, the arc-shaped convex block passes through the hole on the surface of the outer rod, fixes the inner rod in a fixed position, prevents the device from being pushed down, protects the safety of pedestrians, enables the construction site to operate normally, and improves the stability of the device.

[0007] Preferably, the cleaning device includes a fixed plate, a sliding rod, a spring, a baffle, a U-shaped rod, and a fixed shaft. The fixed plate is fixedly connected to the front of the protective plate. The sliding rod is slidably connected to the inner wall of the fixed plate. The spring is sleeved on the surface of the sliding rod. The baffle is fixedly connected to the top of the sliding rod. The U-shaped rod is fixedly connected to the bottom of the fixed plate. The fixed shaft is fixedly connected to the bottom of the sliding rod. The cleaning device further includes a telescopic plate, a fixed rod, a fixed block, a rotating rod, a rotating plate, and an arc-shaped block. The telescopic plate is rotatably connected to the right side of the fixed shaft. The fixed rod is rotatably connected to the inner wall of the telescopic plate. The fixed block is fixedly connected to the top of the telescopic plate. The rotating rod is fixedly connected to the inner wall of the fixed block. The rotating plate is rotatably connected to the surface of the rotating rod. The arc-shaped block is fixedly connected to the top of the rotating plate. The two ends of the spring are respectively fixedly connected to the fixed plate and the baffle. The rear part of the fixed rod is fixedly connected to the front part of the U-shaped rod, so that the fixed block supports the protective net, preventing the protective net from being damaged by the pushed stones, causing the stones to fall, and hurting people, protecting the safety of pedestrians, improving the service life of the device. The rotating plate will push the protective net upward, so that the stones in the protective net will fall from the inside, thus preventing the stones from crushing the protective net, improving the service life of the device, and at the same time allowing the stones and sundries to fall from the side close to the protective plate, further reducing the risk of people being accidentally injured.

[0008] The present invention adopts the above technical solutions and can bring the following beneficial effects:

[0009] 1. For this multi-functional construction safety protection device, through the coordinated operation among the protective plate, the support frame, the lifting device, the motor, the threaded rod, the lifting protection plate, the connecting rod one, the rotating rod, the connecting rod, and the protective net, when the lifting protection plate rises, the protection area of the device is increased, preventing pedestrians from entering the construction site, causing personal danger, and blocking the construction progress, ensuring the construction progress. The protective net can block the stones or waste materials falling from above the construction site, preventing passing pedestrians from being hit by the stones falling from the construction site, protecting the safety of pedestrians, improving the safety of the device, and ensuring the normal operation of the construction site.

[0010] 2. For this multi-functional construction safety protection device, through the coordinated operation among the support device, the connecting rod two, the outer rod, the inner rod, the inclined block, the protective round block, the elastic telescopic rod, and the arc-shaped convex block, the inner rod supports the device, improving the stability of the device, preventing the stability of the device from decreasing due to elevation, and at the same time preventing it from being blown down by strong winds in windy and rainy weather and hitting pedestrians and workers, causing harm to people, thereby protecting the safety of pedestrians, ensuring the normal progress of construction. The arc-shaped convex block passes through the hole on the surface of the outer rod, fixing the inner rod in a fixed position, preventing the device from being pushed down, protecting the safety of pedestrians, enabling the construction site to operate normally, and improving the stability of the device.

[0011] 3. The multi-functional construction safety protection device, through the coordinated operation among the cleaning device, fixed plate, sliding rod, spring, baffle, U-shaped rod, fixed shaft, telescopic plate, fixed rod, fixed block, rotating rod, rotating plate, and arc-shaped block, enables the fixed block to support the protection net, preventing the protection net from being damaged by the pushed stones and causing the stones to fall and hurt people, protecting the safety of pedestrians, increasing the service life of the device. The rotating plate will push the protection net upward, causing the stones inside the protection net to fall from the inside, thus preventing the protection net from being crushed by the stones and increasing the service life of the device. At the same time, the stones and sundries will fall from the side close to the protection plate, further reducing the risk of people being accidentally injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 It is a sectional view of the structure of the protection plate of the present invention;

[0014] Figure 3 For the present invention Figure 2 An enlarged view of the structure at A in the present invention;

[0015] Figure 4 It is a sectional view of the structure of the support device of the present invention;

[0016] Figure 5 For the present invention Figure 4 An enlarged view of the structure at B in the present invention;

[0017] Figure 6 For the present invention Figure 4 An enlarged view of the structure at C in the present invention;

[0018] Figure 7 It is a schematic diagram of the structure of the cleaning device of the present invention;

[0019] Figure 8 For the present invention Figure 7 An enlarged view of the structure at D in the present invention;

[0020] Figure 9 For the present invention Figure 7 An enlarged view of the structure at E in the present invention.

[0021] In the figure: 1, protective plate; 2, support frame; 3, lifting device; 31, motor; 32, threaded rod; 33, lifting protection plate; 34, connecting rod one; 35, rotating rod; 36, connecting rod; 37, protective net; 4, support device; 41, connecting rod two; 42, outer rod; 43, inner rod; 44, inclined block; 45, protective round block; 46, elastic telescopic rod; 47, arc-shaped convex block; 5, cleaning device; 51, fixed plate; 52, sliding rod; 53, spring; 54, baffle; 55, U-shaped rod; 56, fixed shaft; 57, telescopic plate; 58, fixed rod; 59, fixed block; 510, rotating rod; 511, rotating plate; 512, arc-shaped block. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-7, an embodiment of the present invention is: a multi-functional building construction safety protection device, including a protection plate 1. A support frame 2 is fixed to the front of the protection plate 1. A lifting device 3 is arranged inside the protection plate 1. A support device 4 is arranged on the right side of the lifting device 3. A cleaning device 5 is arranged on the front of the protection plate 1. The lifting device 3 includes a motor 31, a threaded rod 32, a lifting protection plate 33, a first connecting rod 34, a rotating rod 35, a connecting rod 36, and a protection net 37. The motor 31 is fixedly connected to the inner wall of the protection plate 1. The threaded rod 32 is fixedly connected to the output end of the motor 31. The lifting protection plate 33 is threadedly connected to the surface of the threaded rod 32. The first connecting rod 34 is fixedly connected to the inner wall of the lifting protection plate 33. The rotating rod 35 is rotatably connected to the surface of the first connecting rod 34. The connecting rod 36 is fixedly connected to the left side of the rotating rod 35. The protection net 37 is fixedly connected to the left side of the rotating rod 35. When the device is in use, the device isolates the building construction site, keeping pedestrians away from the construction site and protecting the safety of pedestrians. The motor 31 starts to work, and the output end of the motor 31 drives the threaded rod 32 to rotate. By the rotation of the threaded rod 32, the lifting protection plate 33 slides upward on the inner wall of the protection plate 1, causing the lifting protection plate 33 to rise, increasing the protection area of the device and enhancing its protection effect. The lifting protection plate 33 is slidably connected to the inner wall of the protection plate 1, and the rotating rod 35 contacts the lifting protection plate 33. When the lifting protection plate 33 reaches the top, the lifting protection plate 33 leaves the protection plate 1. At this time, the protection plate 1 releases the restriction on the rotating rod 35, and the rotating rod 35 pops out through the first connecting rod 34. At the same time, the rotating rod 35 drives the connecting rod 36 and the protection net 37 to pop out, enabling the protection net 37 to block the stones or waste materials falling from above the construction site, preventing passing pedestrians from being hit by the stones falling from the construction site, protecting the safety of pedestrians, improving the safety of the device, and ensuring the normal operation of the construction site.

[0024] The supporting device 4 includes a second connecting rod 41, an outer rod 42, an inner rod 43, an inclined block 44, a protective round block 45, an elastic telescopic rod 46, and an arc-shaped convex block 47. The second connecting rod 41 is fixedly connected to the inner wall of the protective plate 1. The outer rod 42 is rotatably connected to the surface of the second connecting rod 41 through a torsion spring. The inner rod 43 is slidably connected to the inner wall of the outer rod 42. The inclined block 44 is fixedly connected to the left side of the lifting protective plate 33. The supporting device 4 further includes a protective round block 45, an elastic telescopic rod 46, and an arc-shaped convex block 47. The protective round block 45 is fixedly connected to the inner wall of the inner rod 43. The elastic telescopic rod 46 is fixedly connected to the left side of the protective round block 45. The arc-shaped convex block 47 is fixedly connected to the left side of the elastic telescopic rod 46. When the threaded rod 32 drives the lifting protective plate 33 to rise, the lifting protective plate 33 drives the inclined block 44 to rise. When the lifting protective plate 33 rises to the top, at this time, the inclined block 44 pushes the outer rod 42 forward through the inclined plane on the surface through the second connecting rod 41. At this time, the protective plate 1 releases the restriction on the outer rod 42. Then the elastic member pushes the inner rod 43 out of the inner wall of the outer rod 42, so that the inner rod 43 supports the device, improving the stability of the device, preventing the device from losing stability due to elevation, being blown down by strong winds in windy and rainy weather, hitting pedestrians and workers, and causing harm to personnel. Furthermore, it protects the safety of pedestrians and ensures the normal progress of construction. The surface of the outer rod 42 contacts the inner wall of the protective plate 1. The inclined block 44 contacts the outer rod 42. The surface of the outer rod 42 is provided with holes, and the holes are in contact with the arc-shaped convex block 47. An elastic member is provided between the inner wall of the outer rod 42 and the top of the inner rod 43. When the elastic telescopic column pushes the inner rod 43 out, when the inner rod 43 moves to the limited position, the outer rod 42 releases the restriction on the elastic telescopic rod 46, and the elastic telescopic rod 46 will drive the arc-shaped convex block 47 to pass through the holes on the surface of the outer rod 42, fixing the inner rod 43 in a fixed position, preventing the device from being pushed down, protecting the safety of pedestrians, enabling the construction site to work normally, and improving the stability of the device.

[0025] Working principle: When the device is in use, the device isolates the construction site, keeping pedestrians away from the construction site and protecting the safety of pedestrians. The motor 31 starts to work. The output end of the motor 31 drives the threaded rod 32 to rotate. By rotating the threaded rod 32, the lifting protective plate 33 slides upward on the inner wall of the protective plate 1, causing the lifting protective plate 33 to rise, increasing the protective area of the device and enhancing its protective effect. When the lifting protective plate 33 rises to the top, the lifting protective plate 33 leaves the protective plate 1. At this time, the protective plate 1 releases the restriction on the rotating rod 35. The rotating rod 35 pops out through the first connecting rod 34. At the same time, the rotating rod 35 drives the connecting rod 36 and the protective net 37 to pop out, enabling the protective net 37 to block the stones or waste materials falling from above the construction site, preventing passing pedestrians from being injured by the stones falling from the construction site, protecting the safety of pedestrians, improving the safety of the device, and ensuring the normal operation of the construction site.

[0026] When the threaded rod 32 drives the lifting protection plate 33 to rise, the lifting protection plate 33 drives the inclined block 44 to rise. When the lifting protection plate 33 rises to the top, at this time, the inclined block 44 pushes the outer rod 42 forward through the inclined plane on the surface via the second connecting rod 41. At this time, the protection plate 1 releases the restriction on the outer rod 42. Then the elastic member pushes the inner rod 43 out from the inner wall of the outer rod 42, enabling the inner rod 43 to support the device, improving the stability of the device, preventing the stability of the device from decreasing due to elevation, being blown down by strong winds in windy and rainy weather, hitting pedestrians and workers, and causing harm to personnel. Furthermore, it protects the safety of pedestrians and ensures the normal progress of construction. When the elastic telescopic column pushes the inner rod 43 out, when the inner rod 43 moves to the limited position, the outer rod 42 releases the restriction on the elastic telescopic rod 46. The elastic telescopic rod 46 will drive the arc-shaped convex block 47 to pass through the hole on the surface of the outer rod 42, fixing the inner rod 43 in a fixed position, preventing the device from being toppled, protecting the safety of pedestrians, enabling the construction site to work normally, and improving the stability of the device.

[0027] Please refer to Figures 1-7, on the basis of the above embodiments, in another embodiment of the present invention, the cleaning device 5 includes a fixing plate 51, a sliding rod 52, a spring 53, a baffle 54, a U-shaped rod 55, and a fixing shaft 56. The fixing plate 51 is fixedly connected to the front of the protection plate 1. The sliding rod 52 is slidably connected to the inner wall of the fixing plate 51. The spring 53 is sleeved on the surface of the sliding rod 52. The baffle 54 is fixedly connected to the top of the sliding rod 52. The U-shaped rod 55 is fixedly connected to the bottom of the fixing plate 51. The fixing shaft 56 is fixedly connected to the bottom of the sliding rod 52. The cleaning device 5 further includes a telescopic plate 57, a fixing rod 58, a fixing block 59, a rotating rod 510, a rotating plate 511, and an arc-shaped block 512. The telescopic plate 57 is rotatably connected to the right side of the fixing shaft 56. The fixing rod 58 is rotatably connected to the inner wall of the telescopic plate 57. The fixing block 59 is fixedly connected to the top of the telescopic plate 57. The rotating rod 510 is fixedly connected to the inner wall of the fixing block 59. The rotating plate 511 is rotatably connected to the surface of the rotating rod 510. The arc-shaped block 512 is fixedly connected to the top of the rotating plate 511. When the device is working, during construction, the stones falling at the construction site will be blocked by the protection net 37. However, after working for a long time, the stones will accumulate on the surface of the protection net 37. Over time, the accumulated stones will crush the protection net 37, causing harm to personnel and affecting the normal progress of construction, making the device unable to be used normally. When the stones in the protection net 37 gradually accumulate, the weight will increase. Thus, the protection net 37 will drive the rotating rod 35 to move downward by gravity. At this time, the rotating rod 35 will push the baffle 54 downward. The baffle 54 will push the sliding rod 52 downward, and at the same time, compress the spring 53. The rotating rod 35 will push the fixing shaft 56 downward. When the fixing shaft 56 moves downward, it will drive the telescopic plate 57 to rotate through the fixing rod 58, causing the right end of the telescopic plate 57 to move upward. At the same time, the telescopic plate 57 will drive the fixing block 59 to move upward, so that the fixing block 59 supports the protection net 37, preventing the protection net 37 from being damaged by the pushed stones and causing the stones to fall, thus harming personnel, protecting the safety of pedestrians, and increasing the service life of the device. The two ends of the spring 53 are fixedly connected to the fixing plate 51 and the baffle 54 respectively. The rear part of the fixing rod 58 is fixedly connected to the front part of the U-shaped rod 55. When the fixing block 59 rises, the fixing block 59 drives the rotating plate 511 to rise. At this time, the arc-shaped block 512 moves downward due to the stones in the protection net 37. The arc-shaped block 512 pushes the rotating plate 511 downward through the rotating rod 510. At this time, the other end of the rotating plate 511 will move upward due to the rotating rod 510, and the rotating plate 511 will push the protection net 37 upward, causing the stones in the protection net 37 to fall from the inside, thus preventing the stones from crushing the protection net 37, increasing the service life of the device, maintaining the normal use of the device, preventing the stones from crushing the protection net 37 and falling to harm pedestrians, and improving the safety of the device.

[0028] Working principle: When the device is in operation and during construction, the stones falling at the construction site will be blocked by the protection net 37. However, after a long period of operation, the stones will accumulate on the surface of the protection net 37. Over time, the accumulated stones will crush the protection net 37, causing harm to personnel, affecting the normal progress of construction, and making the device unable to be used normally. When the stones in the protection net 37 gradually accumulate, the weight will increase. As a result, the protection net 37 will drive the rotating rod 35 to move downward due to gravity. At this time, the rotating rod 35 will push the baffle 54 downward. The baffle 54 will push the sliding rod 52 downward and simultaneously compress the spring 53. The rotating rod 35 will push the fixed shaft 56 downward. As the fixed shaft 56 moves downward, it will drive the telescopic plate 57 to rotate through the fixed rod 58, causing the right end of the telescopic plate 57 to move upward. At the same time, the telescopic plate 57 will drive the fixed block 59 upward, enabling the fixed block 59 to support the protection net 37, preventing the protection net 37 from being damaged by the pushing stones, and preventing the stones from falling and causing harm to personnel. This protects the safety of pedestrians and increases the service life of the device. When the fixed block 59 rises, it drives the rotating plate 511 to rise. At this time, the arc-shaped block 512 moves downward due to the stones in the protection net 37. The arc-shaped block 512 pushes the rotating plate 511 downward through the rotating rod 510. At this time, the other end of the rotating plate 511 will move upward due to the rotating rod 510, and the rotating plate 511 will push the protection net 37 upward, causing the stones in the protection net 37 to fall from the inside. This avoids the protection net 37 being crushed by the stones, increases the service life of the device, maintains the normal use of the device, prevents the protection net 37 from being crushed by the stones and falling to harm pedestrians, and improves the safety of the device.

[0029] The present invention provides a building construction safety protection device with multiple functions. There are many methods and ways to specifically implement this technical solution. The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the existing technology.

Claims

1. A multifunctional construction safety protection device, comprising a protection plate (1), characterized in that: A support frame (2) is fixed to the front of the protective plate (1), a lifting device (3) is arranged inside the protective plate (1), a supporting device (4) is arranged on the right side of the lifting device (3), and a cleaning device (5) is arranged at the front of the protective plate (1); The lifting device (3) comprises a motor (31), a threaded rod (32), a lifting protection plate (33), a connecting rod (34), a rotating rod (35), a connecting rod (36), and a protection net (37); the motor (31) is fixedly connected to the inner wall of the protection plate (1); the threaded rod (32) is fixedly connected to the output end of the motor (31); the lifting protection plate (33) is threadedly connected to the surface of the threaded rod (32); the connecting rod (34) is fixedly connected to the inner wall of the lifting protection plate (33); the rotating rod (35) is rotatably connected to the surface of the connecting rod (34); the connecting rod (36) is fixedly connected to the left side of the rotating rod (35); and the protection net (37) is fixedly connected to the left side of the rotating rod (35); The lifting protection plate (33) is slidably connected to the inner wall of the protection plate (1), and the rotating rod (35) is in contact with the lifting protection plate (33); The supporting device (4) comprises a second connecting rod (41), an outer rod (42), an inner rod (43), an inclined block (44), a protective round block (45), an elastic telescopic rod (46), and an arc-shaped protrusion (47); the second connecting rod (41) is fixedly connected to the inner wall of the protective plate (1); the outer rod (42) is rotatably connected to the surface of the second connecting rod (41) via a torsion spring; the inner rod (43) is slidably connected to the inner wall of the outer rod (42); and the inclined block (44) is fixedly connected to the left side of the lifting protective plate (33).

2. A multi-functional construction safety protection device according to claim 1, characterized in that: The supporting device (4) further comprises a protective round block (45), an elastic telescopic rod (46), and an arc-shaped protrusion (47); the protective round block (45) is fixedly connected to the inner wall of the inner rod (43); the elastic telescopic rod (46) is fixedly connected to the left side of the protective round block (45); and the arc-shaped protrusion (47) is fixedly connected to the left side of the elastic telescopic rod (46).

3. A multi-functional construction safety protection device according to claim 2, characterized in that: The surface of the outer rod (42) contacts the inner wall of the protective plate (1), the inclined block (44) contacts the outer rod (42), a hole is provided on the surface of the outer rod (42), and the hole contacts the arc-shaped protrusion (47), and an elastic member is provided between the inner wall of the outer rod (42) and the top of the inner rod (43).

4. The multi-functional construction safety protection device according to claim 1 is characterized in that: The cleaning device (5) comprises a fixed plate (51), a slide bar (52), a spring (53), a baffle plate (54), a U-shaped rod (55), and a fixed shaft (56); the fixed plate (51) is fixedly connected to the front part of the protective plate (1); the slide bar (52) is slidably connected to the inner wall of the fixed plate (51); the spring (53) is sleeved on the surface of the slide bar (52); the baffle plate (54) is fixedly connected to the top of the slide bar (52); the U-shaped rod (55) is fixedly connected to the bottom of the fixed plate (51); and the fixed shaft (56) is fixedly connected to the bottom of the slide bar (52).

5. A multi-functional construction safety protection device according to claim 4, characterized in that: The cleaning device (5) further comprises a telescopic plate (57), a fixed rod (58), a fixed block (59), a rotating rod (510), a rotating plate (511), and an arc block (512); the telescopic plate (57) is rotatably connected to the right side of the fixed shaft (56); the fixed rod (58) is rotatably connected to the inner wall of the telescopic plate (57); the fixed block (59) is fixedly connected to the top of the telescopic plate (57); the rotating rod (510) is fixedly connected to the inner wall of the fixed block (59); the rotating plate (511) is rotatably connected to the surface of the rotating rod (510); and the arc block (512) is fixedly connected to the top of the rotating plate (511).

6. A multi-functional construction safety protection device according to claim 5, characterized in that: The two ends of the spring (53) are respectively fixedly connected to the fixing plate (51) and the baffle plate (54), and the rear portion of the fixing rod (58) is fixedly connected to the front portion of the U-shaped rod (55).

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