A safety guardrail for building construction with a lifting function

Abstract

The present invention relates to the technical field of guardrails, and specifically discloses a safety guardrail for building construction with a lifting function, including: a support rod and a railing panel. The railing panel includes a bracket, a first panel, and a second panel. The support rod includes a first rod, a second rod, and a locking assembly. Both ends of the support rod are respectively hinged to the bracket and the first panel. The first rod and the second rod slide relative to each other. The locking assembly is installed between the ends of the first rod and the second rod that are close to each other. The bracket and the first panel are hinged to each other. When the bracket and the first panel change from being parallel to being perpendicular to each other, the locking assembly locks the first rod and the second rod. An elastic connecting piece is provided on the first panel. A locking assembly is installed between the slider and the second panel. A locking assembly is installed between the slider and the second panel. A torsion spring is installed between the slider and the first panel; when the first panel is slightly impacted, it can buffer pedestrians or vehicles, and when the first panel is impacted with a relatively large force, the second panel moves downward to block pedestrians or vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrails, and particularly to a safety guardrail for building construction with a lifting function. Background Art

[0002] During building construction, in order to ensure the safety of the construction area, guardrails are set up around the periphery of some special construction areas. On the one hand, the guardrail serves as a reminder to prevent non-construction personnel from straying into the construction area and causing danger; on the other hand, it can play a blocking role to prevent the risk of falling of personnel or construction vehicles, etc.

[0003] The Chinese patent document with the authorization announcement number CN113833352B discloses a guardrail for building construction, which effectively solves the problems that the guardrail is not firmly connected to the ground due to external interference during use and the protection of the vehicle and the personnel in the vehicle after the vehicle impacts the guardrail; its solution is to include drill rods and support rods, a baffle is connected between the two support rods, the two support rods correspond to the two drill rods one by one, and insertion rods are hermetically slidably connected along the radial direction on the drill rods; after the drill rods are vertically drilled into the soil, multiple insertion rods in the drill rods are horizontally inserted into the soil, effectively ensuring the stability of the drill rods. When a vehicle with a slower speed impacts the guardrail, the kinetic energy of the vehicle is absorbed by the spring and converted into elastic potential energy, playing a buffering role. When a vehicle with a faster speed impacts the guardrail, after part of the kinetic energy of the vehicle is absorbed, the first rotating plate and the second rotating plate rotate by a certain angle to prevent the vehicle moving forward from being overturned and causing secondary injuries, effectively ensuring the safety of the vehicle and the personnel.

[0004] In the above technical solution, by rotating the first rotating plate and the second rotating plate by a certain angle to avoid the vehicle being damaged due to overturning. In the actual application process, when the vehicle is moving towards the construction area in a rolling state, the vehicle can be prevented from overturning by setting the rotating plates. However, if the vehicle is moving directly parallel towards the railing, the impact force is relatively large, and the vehicle may break through the railing and rush towards the construction area. By setting the rotating plates, the injuries suffered by the vehicle and the personnel cannot be reduced. Summary of the Invention

[0005] The present invention provides a safety guardrail for building construction with a lifting function, aiming to solve the problem that when the guardrail is subjected to a large impact force in the related technology, the guardrail will be broken through, causing injuries to vehicles and personnel.

[0006] A safety guardrail for building construction with a lifting function, comprising: support rods and a railing panel. The railing panel includes a bracket, panel one and panel two. The support rods include rod one, rod two and a locking component. The two ends of the support rods are respectively hinged to the bracket and panel one. Rod one and rod two slide relative to each other. The locking component is installed between the ends of rod one and rod two that are close to each other. The bracket and panel one are hinged to each other. When the bracket and panel one change from being parallel to being perpendicular to each other, the locking component locks rod one and rod two.

[0007] There is an elastic connecting piece on panel one. The end of rod two close to the railing panel is hinged to the movable end of the elastic connecting piece. Sliders are slidably arranged on both sides of panel two. A locking component is installed between the slider and panel two to lock the slider and panel two. The movable end of the locking component is connected to the movable end of the elastic connecting piece. An elastic component is installed at the top of panel one so that there is a tendency for relative sliding between panel two and panel one. When the angle between panel two and panel one changes from a right angle to an acute angle, the movable end of the elastic connecting piece moves a certain distance, thereby causing the locking component to release the lock on the slider and panel two. A torsion spring is installed between the slider and panel one.

[0008] The effect is as follows: When installing the guardrail, when pulling panel one to rotate from the horizontal state to the vertical state, the locking component fixes rod one and rod two. A stable triangle is formed among the bracket, panel one and the support rods. After fixing the bracket, the installation of the guardrail can be completed. When panel one receives a relatively small impact force, panel one deflects towards the bracket. After the elastic connecting piece is compressed, it resets. After panel one deflects and then resets, it plays a buffering role for pedestrians or vehicles hitting panel one. When panel one receives a relatively large impact force, panel one deflects first to play a certain buffering role for pedestrians or vehicles. When the deflection angle of panel one is relatively large and the displacement of the movable end of the elastic connecting piece is relatively large, the locking component connected to the movable end of the elastic connecting piece releases the lock on the slider and panel two. Panel two moves downward under the thrust applied by the elastic component and deflects under the action of the torsion spring. Panel two slides along the length direction of the support rod in the reverse direction to block pedestrians or vehicles that break through panel one, preventing vehicles or pedestrians from rushing into the construction area and causing harm.

[0009] Preferably, the locking component includes an elastic piece fixedly arranged on rod one and a card slot opened on rod two. The elastic piece cooperates with the card slot. By setting the locking component, when rod one and rod two slide relative to each other, the elastic piece enters the card slot to connect rod one and rod two.

[0010] Preferably, a slot is opened in the radial direction of rod one. The elastic piece includes a right-angled triangular block slidably arranged in the slot. A first compression spring is installed between the right-angled triangular block and the slot. When the right-angled triangular block enters the card slot, the right-angled side of the right-angled triangular block abuts against the inner wall of the card slot, and rod one and rod two no longer slide relative to each other, completing the locking of rod one and rod two.

[0011] Preferably, a push plate extending into the card slot is slidably arranged on the second rod in the radial direction; by arranging the push plate, when the guardrail needs to be disassembled, the right-angled triangular block is pressed by the push plate, so that the right-angled triangular block can be disengaged from the card slot, and the first rod and the second rod can slide relative to each other, and then the first plate can be pushed from the vertical state to the horizontal state.

[0012] Preferably, a slideway is opened on the first plate, and the elastic connecting piece includes a connecting block and a spring. The connecting block is slidably arranged in the slideway. One end of the spring is connected to the connecting block, and the other end is connected to the first plate. One end of the second rod is hinged to the connecting block; by arranging the elastic connecting piece, when the first plate is impacted, since the first rod and the second rod are locked, the second rod will push the connecting block to move along the slideway to buffer the impact on the first plate.

[0013] Preferably, the locking assembly includes an insertion block, a slot, a pushing groove and a pushing block. The slot penetrates from the side of the slider away from the second plate 23 to the second plate. The insertion block is slidably arranged in the slot. The pushing groove is obliquely opened downward from left to right on the insertion block. The pushing block is slidably arranged in the pushing groove and fixedly connected to the connecting block. The slot is a square groove, and the insertion block is a square block; when the impact on the first plate is large, the connecting block moves a large distance in the slideway. The movement of the connecting block makes the pushing block move in the pushing groove, and then makes the insertion block slide in the slot. When the insertion block disengages from the second plate, the locking between the slider and the second plate is released, and the second plate slides downward. The slot is a square groove, and the insertion block is a square block, which can keep the second plate in the vertical state.

[0014] Preferably, mounting rods are fixedly arranged on both sides of the top of the first plate, and an elastic component is arranged on the mounting rods. The elastic component includes a sleeve, a second compression spring and a pushing rod. The sleeve is fixedly arranged on the mounting rod. The pushing rod is slidably arranged in the sleeve. One end of the second compression spring is connected to the inner wall of the sleeve, and the other end is connected to the pushing rod. The lower end of the pushing rod abuts against the top end of the second plate; by arranging the elastic connecting piece, when the second plate and the slider are locked, the second compression spring is compressed. After the second plate and the slider are unlocked, the second compression spring releases elastic force and pushes the second plate downward.

[0015] Preferably, a holding rod vertically downward is also opened on the mounting rod, and a holding groove is opened on the top of the second plate. The holding rod is matched with the holding groove; when the second plate and the slider are locked, the holding rod is inserted into the holding groove to keep the second plate in the horizontal state.

[0016] Preferably, the second plate has a protrusion. When the second plate and the first plate slide relative to each other, the torsion spring makes the second plate deflect towards the support rod, and the protrusion abuts against the support rod; by arranging the protrusion, when the second plate deflects under the action of the torsion spring, the protrusion abuts against the support rod, so that the second plate slides along the length direction of the support rod.

[0017] Preferably, at least two mounting holes are provided along the length direction of the bracket; by providing the mounting holes, when installing the bracket, the bracket is fixed by inserting bolts into the mounting holes.

[0018] Adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0019] 1. When transporting the guardrail, the bracket, the first plate and the second plate are all placed horizontally to reduce the transportation volume;

[0020] 2. When installing the guardrail, pull the first plate or the second plate to make the first plate or the second plate perpendicular to the bracket. After fixing the bracket, when the first plate is perpendicular to the bracket, the first rod and the second rod on the support rod connecting the first plate and the bracket are locked by the locking component, and a triangle is formed among the first plate, the support rod and the bracket, making the installation of the guardrail more stable;

[0021] 3. When the first plate receives a small impact force, the first plate deflects a certain angle towards the bracket, the movable end of the elastic connecting piece moves a small distance, and the locking component does not release the locking between the slider and the second plate, playing a certain buffering role for pedestrians or vehicles hitting the first plate;

[0022] 4. When the impact force received by the first plate is relatively large, the first plate deflects a relatively large angle towards the support rod, and the distance that the movable end of the elastic connection moves causes the locking component to release the locking between the second plate and the slider. At this time, the second plate moves downward under the pushing action of the elastic component, the slider deflects towards the support rod, and the protrusions provided on both sides of the second plate abut against the support rod, and the second plate slides downward along the length direction of the support rod. When a pedestrian or vehicle breaks through the buffer limit of the first plate and breaks the first plate, it is resisted by the second plate, preventing pedestrians or vehicles from falling into the construction foundation pit and causing harm. Description of the Drawings

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0024] Figure 2 It is a right-view structure schematic diagram of the present invention.

[0025] Figure 3 It is a structure schematic diagram of the elastic connecting piece of the present invention.

[0026] Figure 4 It is a structure schematic diagram of the locking component of the present invention.

[0027] Figure 5 It is a structure schematic diagram of the locking component of the present invention.

[0028] Figure 6 It is a structure schematic diagram of the elastic component of the present invention.

[0029] Reference Signs:

[0030] 1. Support rod; 11. Rod one; 12. Rod two; 13. Locking assembly; 131. Elastic sheet; 1311. Right-angled triangular block; 1312. First compression spring; 132. Card slot; 2. Rail panel; 21. Bracket; 22. Panel one; 23. Panel two; 24. Slide block; 25. Slide groove; 3. Elastic connecting piece; 31. Slideway; 32. Connecting block; 33. Spring; 4. Locking assembly; 41. Insert block; 42. Insert slot; 43. Pushing groove; 44. Pushing block; 5. Elastic assembly; 51. Mounting rod; 52. Sleeve; 53. Second compression spring; 54. Pushing rod; 55. Holding groove; 56. Holding rod; 6. Torsion spring; 7. Protrusion; 8. Mounting hole; 9. Push plate. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] As Figures 1 - 6 shown, a safety guardrail for building construction with a lifting function includes a support rod 1 and a rail panel 2; the rail panel 2 is bendable, the support rod 1 is a telescopic rod and is hinged to the rail panel 2. When transporting the guardrail, the guardrail is in a horizontal state for convenient transportation. At this time, the support rod 1 is in an extended state. When installing the rail panel 2, the guardrail is bent, and the support rod 1 supports the bent rail panel 2. One end of the bent guardrail is fixed to the ground to complete the installation of the guardrail.

[0033] The rail panel 2 includes a bracket 21, a panel one 22 and a panel two 23. The support rod 1 includes a rod one 11, a rod two 12 and a locking assembly 13. The two ends of the support rod 1 are respectively hinged to the bracket 21 and the panel one 22. The rod one 11 and the rod two 12 slide relative to each other. The locking assembly 13 is installed between the ends of the rod one 11 and the rod two 12 that are close to each other. The bracket 21 and the panel one 22 are hinged to each other. When the bracket 21 and the panel one 22 change from being parallel to being perpendicular to each other, the locking assembly 13 locks the rod one 11 and the rod two 12.

[0034] When transporting the guardrail, the bracket 21 and the panel one 22 are on the same horizontal plane. At this time, the support rod 1 is in an extended state, that is, the rod one 11 and the rod two 12 are far away from each other. When installing the guardrail, place the rail panel 2 on the ground. After fixing the bracket 21 to the ground, pull the panel one 22 to make the panel one 22 rotate to a state perpendicular to the bracket 21. During the rotation of the panel one 22, the rod one 11 and the rod two 12 slide relative to each other. When the panel one 22 and the bracket 21 are perpendicular to each other, the locking assembly 13 connects the rod one 11 and the rod two 12 to complete the installation of the guardrail.

[0035] At least two mounting holes are provided along the length direction on the bracket 21. Expansion screws are driven into the mounting holes to fix the bracket 21 on the ground.

[0036] The locking component 13 includes an elastic piece 131 fixedly arranged on the first rod 11 and a clamping groove 132 formed on the second rod 12. When the first plate 22 changes from the horizontal state to the vertical state, the first rod 11 and the second rod 12 slide towards each other. When the first plate 22 changes from the horizontal state to the vertical state, the elastic piece 131 enters the clamping groove 132, and the first rod 11 and the second rod 12 are connected. At this time, the installation of the guardrail can be completed.

[0037] A slot is formed in the radial direction of the first rod 11. The elastic piece 131 includes a right-angled triangular block 1311 slidably arranged in the slot. A first compression spring 1312 is installed between the right-angled triangular block 1311 and the slot. When the first plate 22 changes from the horizontal state to the vertical state and the first rod 11 and the second rod 12 slide relative to each other, the right-angled triangular block 1311 enters the clamping groove 132, thereby connecting the first rod 11 and the second rod 12, and the first plate 22 stops rotating.

[0038] A push plate 9 is slidably arranged in the radial direction on the second rod 12 and extends into the clamping groove 132. When the right-angled triangular block 1311 enters the clamping groove 132, the push plate 9 moves towards the outside of the second rod 12. When the guardrail needs to be disassembled, the right-angled triangular block 1311 is pushed towards the axis of the second rod 12 by the push plate 9 to compress the compression spring. After the compression spring is compressed by a certain distance and the right-angled triangular block 1311 can withdraw from the clamping groove 132, the first plate 22 can be pushed to rotate to the horizontal state, and the guardrail can be disassembled and transported for the next use.

[0039] During the construction of a building, if a pedestrian or a vehicle hits the guardrail, it will cause harm to the pedestrian or the vehicle. If the first plate 22 is subjected to a relatively large impact force, for example, when a moving vehicle impacts the first plate 22, it may break through the resistance of the first plate 22, and then the vehicle may rush into the construction foundation pit.

[0040] To solve the above problems, the first plate 22 of the present invention is provided with an elastic connecting member 3. The end of the second rod 12 close to the railing 2 is hinged to the movable end of the elastic connecting member 3. Sliding grooves 25 are formed on both sides of the second plate 23. A slider 24 is slidably arranged in the sliding groove 25. A locking assembly 4 is installed between the slider 24 and the second plate 23 to lock the slider 24 and the second plate 23. The movable end of the locking assembly 4 is connected to the movable end of the elastic connecting member 3. An elastic assembly 5 is installed between the first plate 22 and the second plate 23. A torsion spring 6 is installed between the slider 24 and the first plate 22. The second plate 23 has a protrusion 7. When the impact force received by the first plate 22 is relatively small, the first plate 22 deflects towards the side of the support 21. Since the first rod 11 and the second rod 12 are locked, the distance that the movable end of the elastic connecting member 3 moves at this time is not enough to release the locking of the slider 24 and the second plate 23 by the locking assembly 4. After the first plate 22 deflects by a certain angle, it resets under the action of the elastic connecting member 3, buffering pedestrians or vehicles hitting the first plate 22 with a small impact force. When the first plate 22 is subjected to a relatively large impact force, the angle between the first plate 22 and the support 21 changes from a right angle to an acute angle. Since the first rod 11 and the second rod 12 are locked, at this time the second rod 12 will push the movable end of the elastic connecting member 3 to move. The movable end of the elastic connecting member 3 moves, so that the locking assembly 4 releases the locking of the slider 24 and the second plate 23. The second plate 23 slides downward relative to the slider 24. Since a torsion spring 6 is installed between the slider 24 and the first plate 22, the torsion spring 6 twists to make the second plate 23 deflect towards the support rod 1. The protrusion 7 provided on the second plate 23 slides on the support rod 1. By providing an elastic assembly 5 between the first rod 11 and the second rod 12, a downward thrust is applied to the downward sliding of the second rod 12, so that the second rod 12 can quickly slide downward and resist the vehicle or pedestrian rushing towards the foundation pit. The second plate 23 slides obliquely downward in contact with the support rod 1, avoiding hitting the pedestrians or vehicles that break through the first plate 22 when the second plate 23 slides downward and thus causing harm to the pedestrians or vehicles.

[0041] A sliding track 31 is formed on the first plate 22. The elastic connecting member 3 includes a connecting block 32 and a spring 33. The connecting block 32 is slidably arranged in the sliding track 31. One end of the spring 33 is connected to the connecting block 32, and the other end is connected to the first plate 22. One end of the second rod 12 is hinged to the connecting block 32. When the first plate 22 is subjected to a large impact force, the first plate 22 deflects towards the support 21. Since the first rod 11 and the second rod 12 are locked by the locking assembly 13, the second rod 12 will push the connecting block 32 to slide upward in the sliding track 31 and compress the spring 33.

[0042] The locking component 4 includes an insertion block 41, a slot 42, a pushing groove 43 and a pushing block 44. The slot 42 penetrates from the side of the slider 24 away from the second plate 23 to the second plate 23. The insertion block 41 is slidably arranged in the slot 42. The pushing groove 43 is obliquely opened downward from left to right on the insertion block 41. The pushing block 44 is slidably arranged in the pushing groove 43 and fixedly connected to the connecting block 32. The slot 42 is a square slot, and the insertion block 41 is a square block. When the first plate 22 deflects a certain angle towards the bracket 21, the spring 33 is compressed. The connecting block 32 slides upward in the slideway 31 and pulls the pushing block 44 to slide in the pushing groove 43, so that the insertion block 41 slides towards the side away from the second plate 23 until the insertion block 41 disengages from the slot 42 on the second plate 23. At this time, the second plate 23 is separated from the slider 24. The slot 42 is a square slot, and the insertion block 41 is a square block. When the insertion block 41 is inserted into the slot 42, the second plate 23 is kept in a vertical state.

[0043] Installation rods 51 are fixedly arranged on both sides of the top of the first plate 22. The elastic component 5 is arranged on the installation rods 51. The elastic component 5 includes a sleeve 52, a second compression spring 53 and a pushing rod 54. The sleeve 52 is fixedly arranged on the installation rod 51. The pushing rod 54 is slidably arranged in the sleeve 52. One end of the second compression spring 53 is connected to the inner wall of the sleeve 52, and the other end is connected to the pushing rod 54. The lower end of the pushing rod 54 abuts against the top end of the second plate 23. When the second plate 23 is in a vertical state, the pushing rod 54 abuts against the top end of the second plate 23. At this time, the second compression spring 53 is compressed, so that the pushing rod 54 exerts a downward pushing force on the second plate 23. When the locking of the locking component 4 between the slider 24 and the second plate 23 is released, the second compression spring 53 releases its elastic force and pushes the second plate 23 downward.

[0044] A vertical holding rod 56 is also opened on the installation rod 51. A holding groove 55 is opened on the top of the second plate 23. The holding rod 56 cooperates with the holding groove 55. When the second compression spring 53 is compressed, the holding rod 56 is inserted into the holding groove 55 to assist in keeping the second plate 23 in a vertical state. After the locking of the locking component 4 between the slider 24 and the second plate 23 is released, the pushing rod 54 pushes the second plate 23 downward until the second plate 23 is separated from the holding rod 56. Then, the slider 24 deflects towards the support rod 1 under the action of the torsion spring 6. The sliding grooves 25 opened on both sides of the second plate 23 slide in the slider 24. The protrusions 7 arranged on both sides of the second plate 23 abut against the support rod 1, so that the second plate 23 slides along the length direction of the support rod 1. When the impact force of a pedestrian or a vehicle on the first plate 22 is large enough to break the first plate 22, the second plate 23 blocks to prevent the pedestrian or the vehicle from rushing into the foundation pit and causing harm.

[0045] The working principle of the present invention:

[0046] When transporting the guardrail, the bracket 21, the first plate 22 and the second plate 23 are all placed horizontally to reduce the transportation volume. When installing the guardrail, pull the first plate 22 or the second plate 23 to make the first plate 22 or the second plate 23 perpendicular to the bracket 21. After fixing the bracket 21, when the first plate 22 is perpendicular to the bracket 21, the first rod 11 and the second rod 12 on the support rod 1 connecting the first plate 22 and the bracket 21 are locked by the locking assembly 13, and at this time, the installation of the guardrail can be completed; when the first plate 22 is subjected to a small impact force, the first plate 22 deflects a certain angle towards the bracket 21, and the movable end of the elastic connecting piece 3 moves a short distance. The locking assembly 4 does not release the locking between the slider 24 and the second plate 23, which plays a certain buffering role for pedestrians or vehicles hitting the first plate 22. When the impact force received by the first plate 22 is relatively large, the angle of deflection of the first plate 22 towards the support rod 1 is relatively large, and the distance moved by the movable end of the elastic connection causes the locking assembly 4 to release the locking between the second plate 23 and the slider 24. At this time, the second plate 23 moves downward under the pushing action of the elastic assembly 5, the slider 24 deflects towards the support rod 1, and the protrusions 7 provided on both sides of the second plate 23 abut against the support rod 1, and the second plate 23 slides downward along the length direction of the support rod 1. When a pedestrian or vehicle breaks through the buffer limit of the first plate 22 and breaks the first plate 22, it is blocked by the second plate 23, preventing pedestrians or vehicles from falling into the construction foundation pit and causing harm.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A safety guardrail for building construction with a lifting function, comprising: Support rod (1) and railing panel (2), characterized in that: The railing panel (2) includes a bracket (21), a first plate (22) and a second plate (23), the support rod (1) includes a first rod (11), a second rod (12) and a locking assembly (13), both ends of the support rod (1) are respectively hinged to the bracket (21) and the first plate (22), the first rod (11) and the second rod (12) slide relative to each other, the locking assembly (13) is installed between the ends of the first rod (11) and the second rod (12) close to each other, the bracket (21) and the first plate (22) are hinged to each other, when the bracket (21) and the first plate (22) change from being parallel to being perpendicular to each other, the locking assembly (13) locks the first rod (11) and the second rod (12); There is an elastic connecting piece (3) on the first plate (22), the end of the second rod (12) close to the railing panel (2) is hinged to the movable end of the elastic connecting piece (3), sliding blocks (24) are arranged on both sides of the second plate (23), a locking assembly (4) is installed between the sliding blocks (24) and the second plate (23) to lock the sliding blocks (24) and the second plate (23), the movable end of the locking assembly (4) is connected to the movable end of the elastic connecting piece (3), an elastic assembly (5) is installed at the top of the first plate (22) to make the second plate (23) and the first plate (22) have a tendency of relative sliding, when the included angle between the second plate (23) and the first plate (22) changes from a right angle to an acute angle, the movable end of the elastic connecting piece (3) moves a distance to release the locking of the sliding blocks (24) and the second plate (23) by the locking assembly (4), a torsion spring (6) is installed between the sliding blocks (24) and the first plate (22), a slideway (31) is opened on the first plate (22), the elastic connecting piece (3) includes a connecting block (32) and a spring (33), the connecting block (32) is slidably arranged in the slideway (31), one end of the spring (33) is connected to the connecting block (32), the other end is connected to the first plate (22), one end of the second rod (12) is hinged to the connecting block (32), the locking assembly (4) includes an insertion block (41), a slot (42), a pushing groove (43) and a pushing block (44), the slot (42) penetrates from the side of the sliding block (24) away from the second plate (23) to the second plate (23), the insertion block (41) is slidably arranged in the slot (42), the pushing groove (43) is obliquely opened downward from left to right on the insertion block (41), the pushing block (44) is slidably arranged in the pushing groove (43) and fixedly connected to the connecting block (32), the slot (42) is a square slot, the insertion block (41) is a square block, there is a protrusion (7) on the second plate (23), when the second plate (23) and the first plate (22) slide relative to each other, the torsion spring (6) deflects the second plate (23) towards the support rod (1), and the protrusion (7) abuts against the support rod (1).

2. The safety protection fence for building construction with a lifting function according to claim 1, wherein, The locking assembly (13) includes an elastic piece (131) fixedly arranged on the first rod (11) and a card slot (132) opened on the second rod (12), and the elastic piece (131) cooperates with the card slot (132).

3. The safety protection fence for building construction with a lifting function according to claim 2, characterized in that, A slot is provided in the radial direction of the rod one (11). The elastic piece (131) includes a right-angled triangular block (1311) slidably arranged in the slot, and a first compression spring (1312) is installed between the right-angled triangular block (1311) and the slot.

4. The safety protection railing for building construction with a lifting function according to claim 2, characterized in that, A push plate (9) extending into the card slot (132) is slidably arranged in the radial direction on the rod two (12).

5. The safety protection fence for building construction with a lifting function according to claim 1, characterized in that, Installation rods (51) are fixedly arranged on both sides of the top of the plate one (22). An elastic component (5) is arranged on the installation rods (51). The elastic component (5) includes a sleeve (52), a second compression spring (53) and a push rod (54). The sleeve (52) is fixedly arranged on the installation rods (51). The push rod (54) is slidably arranged in the sleeve (52). One end of the second compression spring (53) is connected to the inner wall of the sleeve (52), and the other end is connected to the push rod (54). The lower end of the push rod (54) abuts against the top end of the plate two (23).

6. The safety guardrail for building construction with a lifting function according to claim 5, characterized in that, A holding rod (56) extending vertically downward is further provided on the installation rod (51). A holding groove (55) is provided on the top of the plate two (23). The holding rod (56) is matched with the holding groove (55).

7. The safety protection railing for building construction with a lifting function according to any one of claims 1-6, characterized in that, At least two installation holes (8) are provided in the length direction on the bracket (21).

Images