Adjustable building construction safety protection device

Abstract

The invention discloses an adjustable building construction safety protection device, and relates to the technical field of building construction. The protective door aims to solve the problem that a protective door is poor in protective effect due to the fact that falling objects on the outer wall of a construction building cannot be well shielded and protected while workers enter and exit conveniently. The device specifically comprises a supporting frame, connecting rods are fixed to the inner wall of the supporting frame, supporting plates are fixed to the inner walls of the opposite sides of the supporting frame correspondingly, movable plates are slidably connected to the inner walls of the opposite sides of the supporting frame correspondingly, second hydraulic rods are fixed to the outer walls of the bottoms of the movable plates, and the telescopic ends of the second hydraulic rods are fixed to the outer walls of the supporting plates; the outer wall of one side of the movable plate is rotationally connected with a set of supporting columns. According to the protective device, a worker can conveniently open and close the first protective door frame and the second protective door frame, meanwhile, the using safety of the protective device is improved, and the protective device can be conveniently adjusted in the closed state and the open state.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an adjustable building construction safety protection device. Background Art

[0002] During the current construction process, a circle of guardrails will be installed on the outside of the temporary construction site to prevent strangers from entering the construction site and causing safety hazards. At the same time, a protective door is generally set up at the entrance and exit to facilitate the entry and exit of workers and the transportation of construction materials and equipment. Therefore, the protective door needs to be opened and closed frequently. At the same time, a protective shed is usually required at the entrance and exit of the construction site to prevent falling objects from the outside of the construction building from injuring workers entering and exiting through the protective door.

[0003] After searching, the Chinese patent application number CN202310607210.6. discloses a temporary protective door for a construction site, including a door frame, and storage support mechanisms are provided on both sides of the bottom of the door frame, and limit bars are provided on both sides of the bottom rear end of the door frame. However, the above technical solution only uses a relatively narrow rain shield to shield the top of the staff passing through the protective door. Therefore, there is still a problem that the protective door cannot provide good shielding and protection against falling objects from the outer wall of the construction building while facilitating the entry and exit of the staff, resulting in poor protection effect of the protective door. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an adjustable building construction safety protection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An adjustable construction safety protection device comprises a support frame, a connecting rod is fixed to the inner wall of the support frame, a support plate is fixed to the inner wall on the opposite side of the support frame, a movable plate is slidably connected to the inner wall on the opposite side of the support frame, a second hydraulic rod is fixed to the outer wall of the bottom of the movable plate, and the telescopic end of the second hydraulic rod is fixed to the outer wall of the support plate;

[0007] The outer wall of one side of the movable plate is rotatably connected to a group of support columns, the outer walls of the support columns are respectively fixed with connecting sleeves, the outer walls of the connecting sleeves are respectively fixed with the first protective door frame and the second protective door frame, the inner walls of the first protective door frame and the second protective door frame are fixed with protective nets, the inner wall of the movable plate is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixed with a second gear, the outer wall of the support column is fixed with a first gear and a third gear, the first gear and the second gear are meshed and connected, and the third gear is connected to the rotating shaft through a transmission chain;

[0008] A fixed frame is fixed to the inner wall of the opposite side of the support frame, a clamping block is fixed to the outer wall of the top of the movable plate, a clamping mechanism is provided on the inner wall of the fixed frame, the outer wall of the connecting rod is rotatably connected to the second connecting seat and the first connecting seat, the outer wall of the second connecting seat is fixed to the first elastic telescopic rod, the outer wall of the first protective door frame is fixed to a guide plate, the inner wall of the guide plate is slidably connected to the sliding frame, the telescopic end of the first elastic telescopic rod is rotatably connected to the inner wall of the sliding frame, the outer wall of the first connecting seat is fixed to the first hydraulic rod, the outer wall of the first protective door frame is fixed to a group of connecting blocks, the outer wall of one side of the connecting block is rotatably connected to the connecting plate, and the telescopic end of the first hydraulic rod is fixed to the outer wall of the connecting plate.

[0009] Preferably: rectangular through grooves are respectively opened on the outer walls on both sides of the support frame, a group of mounting plates are fixed to the outer walls of the support frame, the outer walls of the mounting plates are rotatably connected to a connecting tube, the outer walls of the connecting tube are fixed to side guardrails, the rectangular through grooves and the outer walls of the connecting tube are provided with a rotating mechanism, and the first hydraulic rod is connected to the second hydraulic rod through an infusion pipeline.

[0010] Furthermore: guardrails are fixed to the outer walls on both sides of the support frame by screws, a handle is fixed to the outer wall of the first protective door frame, and a push block is fixed to the outer wall of the first protective door frame.

[0011] Further preferred: the locking mechanism includes a first rotating handle, a fixed plate, a conical block, a spring, a second elastic telescopic rod and an L-shaped limit block, the fixed plate is fixed to the inner wall of the fixed frame, the first rotating handle is rotatably connected to the inner wall of the fixed plate, the conical block is fixed to the outer wall of the first rotating handle, the spring is respectively fixed to the outer walls on both sides of the fixed plate, the outer wall on one side of the second elastic telescopic rod is fixed to the outer wall on one side of the spring, the second elastic telescopic rod is slidably connected to the inner wall of the fixed frame, the telescopic end of the second elastic telescopic rod passes through the outer wall on one side of the fixed frame, and the L-shaped limit block is fixed to the telescopic end of the second elastic telescopic rod.

[0012] As a preferred embodiment of the present invention: the rotating mechanism includes a slider, a fixed rod, an internal threaded sleeve and a screw, the slider is slidably connected to the inner wall of the rectangular through groove, the rotating shaft is rotatably connected to the inner wall of the slider, the fixed rod is fixed to the bottom outer wall of the slider, the internal threaded sleeve is fixed to the bottom outer wall of the fixed rod, the screw is fixed to the outer wall of the connecting tube, and the screw is connected to the inner wall of the internal threaded sleeve through threads.

[0013] As a further preferred embodiment of the present invention: a reserved groove is formed on the top outer wall of the block, and rectangular through holes are formed on the outer walls on both sides of the fixing frame.

[0014] As a further solution of the present invention: a second rotating handle is rotatably connected to an outer wall of one side of the support frame, and the second rotating handle is transmission-connected to the first rotating handle via a transmission chain.

[0015] On the basis of the above-mentioned scheme: the first protective door frame and the second protective door frame are respectively fixed with second buffer blocks on the outer walls on the opposite sides, and the first buffer block is fixed with the outer wall on one side of the side guardrail.

[0016] Preferably, based on the above scheme: an outer wall of one side of the second rotating handle penetrates an outer wall of one side of the supporting frame, a fixing plate is fixed to the outer wall of one side of the second rotating handle, and a transmission rod is fixed to the outer wall of the fixing plate by screws.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, the staff only needs to lift up the first protective door frame to lift up the first protective door frame and the second protective door frame respectively, and at the same time, the first protective door frame and the second protective door frame are pushed upward as a whole by the first hydraulic rod and the second hydraulic rod, so as to increase the height of the first protective door frame and the second protective door frame after being lifted up, so as to facilitate the staff to carry equipment and construction materials. The first protective door frame and the second protective door frame after being opened and raised can effectively block the heads of the staff passing through the support frame, so that the staff can conveniently open and close the first protective door frame and the second protective door frame, and at the same time, the safety of the protective device when in use is improved, so that the protective device can be conveniently adjusted in the closed state and the open state.

[0019] 2. As the movable plate continues to rise under the push of the second hydraulic rod, the rotating shaft will drive the connecting tube to rotate outward through the rotating mechanism, thereby driving a group of side guardrails on both sides of the support frame to rotate outward. When the first protective door frame and the second protective door frame move upward to the maximum height and rotate to a horizontal angle, the side guardrails on both sides of the support frame will also be driven by the rotating mechanism to rotate to one side of the first protective door frame and the second protective door frame respectively, thereby blocking both sides of the first protective door frame and the second protective door frame, and cooperating with the first protective door frame and the second protective door frame to shield and protect the entrance and exit of the construction area as a whole.

[0020] 3. When the staff completes the construction and leaves the construction area through the entrance and exit, the staff can release the fixation of the card block by rotating the locking mechanism, so that the second hydraulic rod can drive the movable plate to move downward and reset at a uniform speed under the push of the elastic force of the first elastic telescopic rod. At the same time, under the traction of the telescopic end of the first hydraulic rod, the first protective door frame and the second protective door frame will also rotate downward at a uniform speed under the push of the elastic force of the first elastic telescopic rod, so that the first protective door frame and the second protective door frame can be opened and closed at a uniform speed, avoiding collision between the first protective door frame and the second protective door frame and the surrounding staff when opening and closing.

[0021] 4. The side guardrails on both sides of the support frame will also be retracted inward at a uniform speed under the drive of the rotating mechanism. When the first protective door frame and the second protective door frame descend and abut against each other, the two side guardrails on both sides of the support frame will also abut against each other, thereby cooperating with the first protective door frame, the second protective door frame and the guardrail to shield and protect the construction area, while reducing the space occupied by the protective device after it is closed, thereby improving the practicality of the protective device.

[0022] 5. When only one worker enters or exits the construction area, and the worker needs to close the protective device after completing the construction, the worker can first fix the transmission rod to the fixing plate protruding from the inner wall on the opposite side of the support frame by screws, so that the worker only needs to rotate a second rotating handle on one side of the support frame, and the transmission rod can drive the second rotating handles on both sides of the support frame to rotate at the same time, thereby driving the two locking mechanisms on both sides of the support frame to open at the same time, so that one worker can also easily complete the opening and closing operations of the protective device, thereby improving the convenience of using the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of an adjustable building construction safety protection device proposed by the present invention;

[0024] Figure 2 A schematic diagram of the side structure of an adjustable building construction safety protection device proposed by the present invention;

[0025] Figure 3 A schematic diagram of the opening structure of a protective door frame and side guardrails of an adjustable building construction safety protection device proposed by the present invention;

[0026] Figure 4 A schematic diagram of the support frame structure of an adjustable building construction safety protection device proposed by the present invention;

[0027] Figure 5 A schematic diagram of the structure of a first connecting seat of an adjustable building construction safety protection device proposed by the present invention;

[0028] Figure 6 A schematic diagram of the movable plate structure of an adjustable building construction safety protection device proposed by the present invention;

[0029] Figure 7 A schematic diagram of the internal structure of a fixed frame of an adjustable building construction safety protection device proposed by the present invention;

[0030] Figure 8 A schematic diagram of the rotating mechanism structure of an adjustable building construction safety protection device proposed by the present invention;

[0031] Fig. 9This is a structural schematic diagram of Example 2 of an adjustable building construction safety protection device proposed by the present invention.

[0032] In the figure: 1 support frame, 2 connecting plate, 3 first protective door frame, 4 connecting block, 5 guardrail, 6 side guardrail, 7 first connecting seat, 8 first hydraulic rod, 9 connecting rod, 10 first elastic telescopic rod, 11 second connecting seat, 12 second protective door frame, 13 first buffer block, 14 supporting column, 15 second buffer block, 16 sliding frame, 17 push block, 18 guide plate, 19 first rotating handle, 20 internal thread sleeve, 21 connecting cylinder, 22 second rotating handle, 23 lead screw, 24 connecting sleeve, 25 first gear, 26 second gear, 27 fixed frame, 28 movable plate, 29 supporting plate, 30 second hydraulic rod, 31 rectangular through groove, 32 conical block, 33 fixed plate, 34 second elastic telescopic rod, 35 L-type limit block, 36 spring, 37 card block, 38 reserved groove, 39 rotating shaft, 40 fixed rod, 41 slider, 42 mounting plate, 43 fixed sheet, 44 transmission rod, 45 third gear. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Embodiment 1:

[0036] An adjustable building construction safety protection device, such as Figure 1-8 As shown, it includes a support frame 1, a connecting rod 9 is fixed to the inner wall of the support frame 1, a support plate 29 is fixed to the inner wall of the opposite side of the support frame 1, a movable plate 28 is slidably connected to the inner wall of the opposite side of the support frame 1, a second hydraulic rod 30 is fixed to the outer wall of the bottom of the movable plate 28, and the telescopic end of the second hydraulic rod 30 is fixed to the outer wall of the support plate 29;

[0037] The outer wall of one side of the movable plate 28 is rotatably connected to a group of support columns 14, the outer walls of the support columns 14 are respectively fixed with connecting sleeves 24, the outer walls of the connecting sleeves 24 are respectively fixed with the first protective door frame 3 and the second protective door frame 12, the inner walls of the first protective door frame 3 and the second protective door frame 12 are fixed with protective nets, the inner wall of the movable plate 28 is rotatably connected to a rotating shaft 39, the outer wall of the rotating shaft 39 is fixed with a second gear 26, the outer wall of the supporting column 14 is fixed with a first gear 25 and a third gear 45, the first gear 25 and the second gear 26 are meshed and connected, and the third gear 45 is transmission-connected to the rotating shaft 39 through a transmission chain;

[0038] The inner walls of the opposite sides of the support frame 1 are respectively fixed with fixed frames 27, the outer wall of the top of the movable plate 28 is fixed with a clamping block 37, the inner wall of the fixed frame 27 is provided with a clamping mechanism, the outer wall of the connecting rod 9 is rotatably connected with the second connecting seat 11 and the first connecting seat 7, the outer wall of the second connecting seat 11 is fixed with a first elastic telescopic rod 10, the outer wall of the first protective door frame 3 is fixed with a guide plate 18, the inner wall of the guide plate 18 is slidably connected with a sliding frame 16, the telescopic end of the first elastic telescopic rod 10 is rotatably connected to the inner wall of the sliding frame 16, the outer wall of the first connecting seat 7 is fixed with a first hydraulic rod 8, the outer wall of the first protective door frame 3 is fixed with a group of connecting blocks 4, the outer wall of one side of the connecting block 4 is rotatably connected with the connecting plate 2, and the telescopic end of the first hydraulic rod 8 is fixed to the outer wall of the connecting plate 2;

[0039] The outer walls of both sides of the support frame 1 are respectively provided with rectangular through grooves 31, a group of mounting plates 42 are fixed to the outer wall of the support frame 1, the outer wall of the mounting plate 42 is rotatably connected to the connecting cylinder 21, the outer wall of the connecting cylinder 21 is fixed with a side guardrail 6, the rectangular through groove 31 and the outer wall of the connecting cylinder 21 are provided with a rotating mechanism, and the first hydraulic rod 8 is connected to the second hydraulic rod 30 through the infusion pipeline;

[0040] Guardrails 5 are fixed to the outer walls on both sides of the support frame 1 by screws, a handle is fixed to the outer wall of the first protective door frame 3, and a push block 17 is fixed to the outer wall of the first protective door frame 3.

[0041] The staff fixes the support frame 1 at the entrance and exit positions of the guardrail 5 around the construction area by bolts, so that the entrance and exit parts of the guardrail 5 are shielded and protected by the first protective door frame 3 and the second protective door frame 12 set on the inner wall of the support frame 1. When the staff needs to open the first protective door frame 3 to enter the construction area, the staff only needs to push the first protective door frame 3 upwards through the handle on one side of the first protective door frame 3 to rotate upward under the guidance of the support column 14 and the connecting sleeve 24. When the first protective door frame 3 rotates upward, the third gear 45 corresponding to one side of the movable plate 28 will be driven to rotate through the support column 14. When the third gear 45 rotates, it will drive the rotating shaft 39 on one side of the movable plate 28 to rotate in the same direction through the transmission chain, thereby driving the second gear 26 and the third gear 45 on the outer wall of the rotating shaft 39 to rotate in the same direction. When the second gear 26 rotates, it will drive the first gear 25 meshed with the outer wall to rotate in the opposite direction, thereby driving the second protective door frame 12 on the other side of the first protective door frame 3 to rotate upward with the first protective door frame 3 through the first gear 25, so that the two first protective door frames 3 and the second protective door frames 12 that were previously close to each other are respectively opened upward;

[0042] When the first protective door frame 3 is continuously opened upwards under the lifting of the staff, the connecting plate 2 rotatably connected to one side of the first protective door frame 3 will continuously push the telescopic end of the first hydraulic rod 8 to be retracted inwards, so that the liquid inside the first hydraulic rod 8 is filled into the second hydraulic rod 30 through the infusion pipeline. After the liquid enters the second hydraulic rod 30, it will push the telescopic end of the second hydraulic rod 30 to move outwards, thereby pushing the movable plate 28 of the outer wall of the second hydraulic rod 30 to move upwards as a whole. When the movable plate 28 moves upwards, the height of the two opened first protective door frames 3 and second protective door frames 12 will be increased, thereby increasing the overall height of the entrance and exit, making it convenient for the staff to carry equipment and construction materials;

[0043] As the first protective door frame 3 is continuously lifted upward, the staff can hold the vertical rod and push the push block 17 on one side of the first protective door frame 3 to continue to push the first protective door frame 3 upward. When the first protective door frame 3 and the second protective door frame 12 are rotated upward to a horizontal position, the movable plate 28 will also rise to the maximum height under the push of the second hydraulic rod 30. At this time, the block 37 on the top of the movable plate 28 will be inserted into the positioning mechanism on the inner wall of the fixed frame 27, thereby limiting and fixing the block 37 moved to the bottom of the fixed frame 27, thereby fixing and limiting the first protective door frame 3 and the second protective door frame 12 after being rotated upward to a horizontal angle and raised to a corresponding height. At this time, the first protective door frame 3 and the second protective door frame 12 after being opened and raised to a corresponding height can effectively block the heads of the staff passing by the support frame 1, so as to prevent falling objects at high places in the construction area from injuring the passing staff;

[0044] As the movable plate 28 continues to rise under the push of the second hydraulic rod 30, the rotating shaft 39 will drive the connecting tube 21 to rotate outward through the rotating mechanism, thereby driving a group of side guardrails 6 on both sides of the support frame 1 to rotate outward. When the first protective door frame 3 and the second protective door frame 12 move upward to the maximum height and rotate to a horizontal angle, the side guardrails 6 on both sides of the support frame 1 will also be driven by the rotating mechanism to rotate to the first protective door frame 3 and the second protective door frame 12 side, respectively, so as to block the first protective door frame 3 and the second protective door frame 12 on both sides, and cooperate with the first protective door frame 3 and the second protective door frame 12 to block and protect the entrance and exit of the construction area as a whole;

[0045] When the staff completes the construction and leaves the construction area through the entrance and exit, the staff can release the fixation of the card block 37 by rotating the locking mechanism. At this time, the first protective door frame 3 will rotate downward under the elastic force of the first elastic telescopic rod 10. At this time, the first protective door frame 3 will pull the telescopic end of the first hydraulic rod 8 to move outward, so that the liquid filled in the second hydraulic rod 30 is sucked into the first hydraulic rod 8 again, so that the second hydraulic rod 30 drives the movable plate 28 to move downward and reset at a uniform speed. At the same time, under the traction of the telescopic end of the first hydraulic rod 8, the first protective door frame 3 and the second protective door frame 12 will also rotate downward at a uniform speed under the push of the elastic force of the first elastic telescopic rod 10, so that the first protective door frame 3 and the second protective door frame 12 can be opened and closed at a uniform speed, avoiding the first protective door frame 3 and the second protective door frame 12 from colliding with the surrounding staff when opening and closing, allowing the staff to conveniently open and close the first protective door frame 3 and the second protective door frame 12, while improving the safety of the protective device when in use;

[0046] At the same time, the side guardrails 6 on both sides of the support frame 1 will also be retracted inward at a uniform speed driven by the rotating mechanism. When the first protective door frame 3 and the second protective door frame 12 are lowered and abutted against each other, the two side guardrails 6 on both sides of the support frame 1 will also abut against each other, thereby cooperating with the first protective door frame 3, the second protective door frame 12 and the guardrail 5 to shield and protect the construction area, while reducing the space occupied by the protective device after it is closed, thereby improving the practicability of the protective device and allowing the protective device to be conveniently adjusted in the closed state and the open state.

[0047] like Figure 6 , Figure 7As shown, the locking mechanism includes a first rotating handle 19, a fixed plate 33, a conical block 32, a spring 36, a second elastic telescopic rod 34 and an L-shaped limit block 35. The fixed plate 33 is fixed to the inner wall of the fixed frame 27, the first rotating handle 19 is rotatably connected to the inner wall of the fixed plate 33, the conical block 32 is fixed to the outer wall of the first rotating handle 19, the spring 36 is respectively fixed to the outer walls on both sides of the fixed plate 33, the outer wall on one side of the second elastic telescopic rod 34 is fixed to the outer wall on one side of the spring 36, the second elastic telescopic rod 34 is slidably connected to the inner wall of the fixed frame 27, the telescopic end of the second elastic telescopic rod 34 passes through the outer wall on one side of the fixed frame 27, the L-shaped limit block 35 is fixed to the second elastic telescopic rod 34, and the second elastic telescopic rod 34 is connected to the inner wall of the fixed frame 27. The retractable end of the retractable rod 34; as the movable plate 28 continues to move upward, the block 37 located at the top of the movable plate 28 will also continue to move upward under the drive of the movable plate 28. As the block 37 continues to move upward, when the block 37 contacts the L-shaped limit block 35, the L-shaped limit block 35 will move outward under the elastic force of the telescopic shaft of the second elastic telescopic rod 34, so that the block 37 moves to the bottom of the fixed frame 27. At this time, the L-shaped limit block 35 will reset under the elastic force of the telescopic end of the second elastic telescopic rod 34, thereby blocking the bottom of the block 37, blocking and limiting the movable plate 28 after it moves upward to the corresponding height, and completing the fixation of the first protective door frame 3 and the second protective door frame 12;

[0048] When the staff needs to close the first protective door frame 3 and the second protective door frame 12, they only need to rotate the first rotating handle 19, and the first rotating handle 19 will drive the conical block 32 of the outer wall to rotate, thereby pushing the second elastic telescopic rod 34 slidably connected to the inner wall of the fixed frame 27 outward, thereby pushing the L-shaped limit blocks 35 on both sides of the fixed frame 27 to move outward, thereby releasing the support limit of the L-shaped limit blocks 35 on the card blocks 37, allowing the movable plate 28 to move downward under the elastic force of the first elastic telescopic rod 10, completing the closing of the first protective door frame 3 and the second protective door frame 12.

[0049] like Figure 8 As shown, the rotating mechanism includes a slider 41, a fixed rod 40, an internally threaded sleeve 20 and a lead screw 23. The slider 41 is slidably connected to the inner wall of the rectangular through groove 31, the rotating shaft 39 is rotatably connected to the inner wall of the slider 41, the fixed rod 40 is fixed to the bottom outer wall of the slider 41, the internally threaded sleeve 20 is fixed to the bottom outer wall of the fixed rod 40, the lead screw 23 is fixed to the outer wall of the connecting tube 21, and the lead screw 23 is connected to the inner wall of the internally threaded sleeve 20 through a thread; when the movable plate 28 moves up and down under the push of the second hydraulic rod 30, the slider 41 will be driven to move up and down on the inner wall of the rectangular through groove 31 through the rotating shaft 39, thereby driving the internally threaded sleeve 20 to move up and down. When the internally threaded sleeve 20 moves up and down, it will drive the lead screw 23 to rotate left and right through the thread, so that the side guardrail 6 fixed to the outer wall of the connecting tube 21 can open and close following the up and down movement of the movable plate 28.

[0050] like Figure 6 As shown, a reserved groove 38 is opened on the outer wall of the top of the block 37, and rectangular through holes are opened on the outer walls on both sides of the fixed frame 27; the rectangular through holes located on the upper and lower sides of the fixed frame 27 and the reserved groove 38 on the top of the block 37 can provide rotation space for the conical block 32 during rotation.

[0051] like Figure 4 As shown, a second rotating handle 22 is rotatably connected to the outer wall of one side of the support frame 1, and the second rotating handle 22 is transmission-connected to the first rotating handle 19 through a transmission chain; the worker can drive the first rotating handle 19 to rotate by rotating the second rotating handle 22 with a relatively low rotation height, thereby opening the locking mechanism and releasing the fixation of the movable plate 28, thereby conveniently closing the first protective door frame 3 and the second protective door frame 12.

[0052] like Figure 2 As shown, second buffer blocks 15 are respectively fixed to the outer walls on the opposite sides of the first protective door frame 3 and the second protective door frame 12, and a first buffer block 13 is fixed to the outer wall on one side of the side guardrail 6; the first buffer block 13 and the second buffer block 15 can buffer the side guardrail 6, the first protective door frame 3 and the second protective door frame 12 that are close together, thereby avoiding hard collision between the side guardrail 6, the first protective door frame 3 and the second protective door frame 12 when closing, thereby improving the service life of the protective device.

[0053] When the present embodiment is in use, when the staff needs to open the first protective door frame 3 to enter the construction area, the staff only needs to push the first protective door frame 3 upwards through the handle on one side of the first protective door frame 3, and the first protective door frame 3 rotates upward under the guidance of the support column 14 and the connecting sleeve 24. When the first protective door frame 3 rotates upward, the third gear 45 corresponding to one side of the movable plate 28 will be driven to rotate through the support column 14. When the third gear 45 rotates, it will drive the rotating shaft 39 on one side of the movable plate 28 to rotate in the same direction through the transmission chain, thereby driving the second gear 26 on the outer wall of the rotating shaft 39 and the third gear 45 to rotate in the same direction. When the second gear 26 rotates, it will drive the first gear 25 meshing with the outer wall to rotate in the opposite direction, thereby driving the second protective door frame 12 on the other side of the first protective door frame 3 to rotate upward with the first protective door frame 3 through the first gear 25, thereby respectively opening the first protective door frame 3 and the second protective door frame 12 that were previously close together.

[0054] When the first protective door frame 3 is continuously opened upwards under the lifting of the staff, the connecting plate 2 rotatably connected to one side of the first protective door frame 3 will continuously push the telescopic end of the first hydraulic rod 8 to be retracted inwards, so that the liquid inside the first hydraulic rod 8 is filled into the second hydraulic rod 30 through the infusion pipeline. After the liquid enters the second hydraulic rod 30, it will push the telescopic end of the second hydraulic rod 30 to move outwards, pushing the movable plate 28 of the outer wall of the second hydraulic rod 30 to move upwards as a whole. When the movable plate 28 moves upwards, the height of the two opened first protective door frames 3 and second protective door frames 12 will be increased, thereby increasing the overall height of the entrance and exit;

[0055] As the first protective door frame 3 is continuously lifted upward, the staff can hold the vertical rod and push the push block 17 on one side of the first protective door frame 3 to continue to push the first protective door frame 3 upward. When the first protective door frame 3 and the second protective door frame 12 are rotated upward to a horizontal position, the movable plate 28 will also rise to the maximum height under the push of the second hydraulic rod 30. At this time, the block 37 on the top of the movable plate 28 will be inserted into the positioning mechanism of the inner wall of the fixed frame 27, and the block 37 moved to the bottom of the fixed frame 27 is limited and fixed, and the first protective door frame 3 and the second protective door frame 12 that are rotated upward to a horizontal angle and raised to a corresponding height are fixed and limited. At this time, the first protective door frame 3 and the second protective door frame 12 that are opened and raised to a corresponding height can effectively block the heads of the staff passing through the support frame 1;

[0056] As the movable plate 28 continues to rise under the push of the second hydraulic rod 30, the rotating shaft 39 will drive the connecting tube 21 to rotate outward through the rotating mechanism, driving a group of side guardrails 6 on both sides of the support frame 1 to rotate outward. When the first protective door frame 3 and the second protective door frame 12 move upward to the maximum height and rotate to a horizontal angle, the side guardrails 6 on both sides of the support frame 1 will also be driven by the rotating mechanism to rotate to the side of the first protective door frame 3 and the second protective door frame 12 respectively, thereby shielding both sides of the first protective door frame 3 and the second protective door frame 12.

[0057] When the staff completes the construction and leaves the construction area through the entrance and exit, the staff can release the fixation of the blocking block 37 by rotating the locking mechanism. At this time, the first protective door frame 3 will rotate downward under the elastic force of the first elastic telescopic rod 10. At this time, the first protective door frame 3 will pull the telescopic end of the first hydraulic rod 8 to move outward, and the liquid filled in the second hydraulic rod 30 will be sucked into the first hydraulic rod 8 again, so that the second hydraulic rod 30 drives the movable plate 28 to move downward and reset at a uniform speed. At the same time, under the traction of the telescopic end of the first hydraulic rod 8, the first protective door frame 3 and the second protective door frame 12 will also rotate downward at a uniform speed under the push of the elastic force of the first elastic telescopic rod 10, so that the first protective door frame 3 and the second protective door frame 12 can be opened and closed at a uniform speed.

[0058] Embodiment 2:

[0059] An adjustable building construction safety protection device, such as Fig. 9 As shown, this embodiment makes the following improvements on the basis of Embodiment 1: the outer wall of one side of the second rotating handle 22 passes through the outer wall of one side of the support frame 1, and a fixing plate 43 is fixed to the outer wall of one side of the second rotating handle 22, and a transmission rod 44 is fixed to the outer wall of the fixing plate 43 by screws; when only one staff member enters or exits the construction area, when the staff member needs to close the protective device after completing the construction, the transmission rod 44 can be first fixed to the fixing plate 43 protruding from the inner wall on the opposite side of the support frame 1 by screws, so that the staff member only needs to rotate a second rotating handle 22 on one side of the support frame 1, and the transmission rod 44 can drive the second rotating handles 22 on both sides of the support frame 1 to rotate at the same time, thereby driving the two locking mechanisms on both sides of the support frame 1 to open at the same time, so that one staff member can also easily complete the opening and closing operation of the protective device, thereby improving the convenience of using the protective device.

[0060] When this embodiment is in use, when only one worker enters or exits the construction area, when the worker needs to close the protective device after completing the construction, the transmission rod 44 can be first fixed to the fixing plate 43 protruding from the inner wall on the opposite side of the support frame 1 by screws, so that the worker only needs to rotate a second rotating handle 22 on one side of the support frame 1, and the transmission rod 44 can drive the second rotating handles 22 on both sides of the support frame 1 to rotate simultaneously, driving the two locking mechanisms on both sides of the support frame 1 to open simultaneously, so that one worker can also easily complete the opening and closing operations of the protective device.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable building construction safety protection device, comprising a support frame (1), characterized in that: A connecting rod (9) is fixed to the inner wall of the support frame (1), a support plate (29) is fixed to the inner wall on the opposite side of the support frame (1), a movable plate (28) is slidably connected to the inner wall on the opposite side of the support frame (1), a second hydraulic rod (30) is fixed to the outer wall of the bottom of the movable plate (28), and the telescopic end of the second hydraulic rod (30) is fixed to the outer wall of the support plate (29); The outer wall of one side of the movable plate (28) is rotatably connected to a group of support columns (14), the outer walls of the support columns (14) are respectively fixed with connecting sleeves (24), the outer walls of the connecting sleeves (24) are respectively fixed with the first protective door frame (3) and the second protective door frame (12), the inner walls of the first protective door frame (3) and the second protective door frame (12) are fixed with protective nets, the inner wall of the movable plate (28) is rotatably connected to a rotating shaft (39), the outer wall of the rotating shaft (39) is fixed with a second gear (26), the outer wall of the supporting column (14) is fixed with a first gear (25) and a third gear (45), the first gear (25) and the second gear (26) are meshingly connected, and the third gear (45) is transmission-connected to the rotating shaft (39) through a transmission chain; A fixed frame (27) is fixed to the inner wall of the opposite side of the support frame (1), a clamping block (37) is fixed to the outer wall of the top of the movable plate (28), a clamping mechanism is provided on the inner wall of the fixed frame (27), the outer wall of the connecting rod (9) is rotatably connected to the second connecting seat (11) and the first connecting seat (7), the outer wall of the second connecting seat (11) is fixed to the first elastic telescopic rod (10), the outer wall of the first protective door frame (3) is fixed to a guide plate (18), the inner wall of the guide plate (18) is slidably connected to the sliding frame (16), the telescopic end of the first elastic telescopic rod (10) is rotatably connected to the inner wall of the sliding frame (16), the outer wall of the first connecting seat (7) is fixed to a first hydraulic rod (8), the outer wall of the first protective door frame (3) is fixed to a group of connecting blocks (4), the outer wall of one side of the connecting block (4) is rotatably connected to the connecting plate (2), and the telescopic end of the first hydraulic rod (8) is fixed to the outer wall of the connecting plate (2).

2. The adjustable construction safety protection device according to claim 1 is characterized in that: Rectangular through grooves (31) are respectively formed on the outer walls of both sides of the support frame (1); a group of mounting plates (42) are fixed to the outer wall of the support frame (1); the outer wall of the mounting plate (42) is rotatably connected to a connecting tube (21); a side guardrail (6) is fixed to the outer wall of the connecting tube (21); a rotating mechanism is provided on the rectangular through groove (31) and the outer wall of the connecting tube (21); and the first hydraulic rod (8) is connected to the second hydraulic rod (30) via an infusion pipeline.

3. The adjustable construction safety protection device according to claim 2 is characterized in that: Guardrails (5) are fixed to the outer walls on both sides of the support frame (1) by screws, a handle is fixed to the outer wall of the first protective door frame (3), and a push block (17) is fixed to the outer wall of the first protective door frame (3).

4. The adjustable construction safety protection device according to claim 1 is characterized in that: The locking mechanism comprises a first rotating handle (19), a fixed plate (33), a conical block (32), a spring (36), a second elastic telescopic rod (34) and an L-shaped limit block (35); the fixed plate (33) is fixed on the inner wall of the fixed frame (27); the first rotating handle (19) is rotatably connected to the inner wall of the fixed plate (33); the conical block (32) is fixed to the outer wall of the first rotating handle (19); the spring (36) is respectively fixed to the outer walls on both sides of the fixed plate (33); the outer wall on one side of the second elastic telescopic rod (34) is fixed to the outer wall on one side of the spring (36); the second elastic telescopic rod (34) is slidably connected to the inner wall of the fixed frame (27); the telescopic end of the second elastic telescopic rod (34) passes through the outer wall on one side of the fixed frame (27); and the L-shaped limit block (35) is fixed to the telescopic end of the second elastic telescopic rod (34).

5. The adjustable construction safety protection device according to claim 2 is characterized in that: The rotating mechanism comprises a slider (41), a fixed rod (40), an internally threaded sleeve (20) and a lead screw (23); the slider (41) is slidably connected to the inner wall of the rectangular through groove (31); the rotating shaft (39) is rotatably connected to the inner wall of the slider (41); the fixed rod (40) is fixed to the bottom outer wall of the slider (41); the internally threaded sleeve (20) is fixed to the bottom outer wall of the fixed rod (40); the lead screw (23) is fixed to the outer wall of the connecting tube (21); and the lead screw (23) is connected to the inner wall of the internally threaded sleeve (20) through threads.

6. The adjustable construction safety protection device according to claim 1, characterized in that: A reserved groove (38) is formed on the top outer wall of the clamping block (37), and rectangular through holes are formed on the outer walls on both sides of the fixing frame (27).

7. The adjustable construction safety protection device according to claim 3 is characterized in that: A second rotating handle (22) is rotatably connected to an outer wall of one side of the support frame (1), and the second rotating handle (22) is transmission-connected to the first rotating handle (19) via a transmission chain.

8. The adjustable construction safety protection device according to claim 3 is characterized in that: A second buffer block (15) is fixed to the outer wall of the first protective door frame (3) and the second protective door frame (12) on one side opposite to each other, and a first buffer block (13) is fixed to the outer wall of one side of the side guardrail (6).

9. The adjustable construction safety protection device according to claim 7, characterized in that: The outer wall of one side of the second rotating handle (22) penetrates the outer wall of one side of the support frame (1), a fixing plate (43) is fixed to the outer wall of one side of the second rotating handle (22), and a transmission rod (44) is fixed to the outer wall of the fixing plate (43) by means of screws.

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