A safety protection anti-falling device and method suitable for a water conservancy construction site

Abstract

The application relates to the field of safety protection and falling prevention devices and methods suitable for water conservancy construction sites, which comprises a locking column, a locking ring is sleeved on the outer wall of the locking column, a trigger column is horizontally arranged at the other end of the locking column, locking rings with the same structure are fixedly sleeved on the outer wall of the trigger column, a reinforcing mechanism is movably arranged in the locking column, and a protection mechanism is horizontally arranged on one side of the trigger column. The safety protection and falling prevention device suitable for water conservancy construction sites is characterized in that, after the trigger column is pulled, the reinforcing mechanism can release the limitation on the extrusion ring, so that when the sliding column rotates, force is applied to the sliding column to enable the sliding column to drill into the soil, the stability is improved, and when the rotating column rotates, the threaded rod is driven to rotate, the trigger L-shaped rod drives the trigger rod to contact the limiting plate to release the limitation of the limiting plate, the lower end of the whole metal net is moved upward, the extension spring is pulled to buffer, and tearing of the metal net is avoided.

Description

Technical Field

[0001] This invention relates to the field of safety protection and anti-fall device and method suitable for use in water conservancy construction sites. Background Technology

[0002] Hydraulic engineering construction is a type of construction that often takes place in rivers, lakes, coastal areas, and other water bodies. It requires diversion, interception, and underwater operations based on the natural conditions of the water flow and the requirements of the project. During the construction of hydraulic engineering projects, it is necessary to build slope protection. When building slope protection, a large amount of sand, cement blocks, etc. need to be placed on the slope. Therefore, for the safety of construction, special protective and anti-fall devices are needed to restrict the sand and prevent landslides.

[0003] The inventors have discovered the following problems in the existing technology that have not been adequately addressed: 1. During the use of the existing device, when a sudden landslide occurs, the entire protective device will block rocks and other debris on the slope. However, the sudden pulling and prolonged compression can easily cause the fixed structure to loosen, resulting in a landslide. 2. Secondly, when the device is in use, after the protective net is suddenly compressed, the bottom of the net will be pulled upwards. The existing device is not conducive to buffering and is prone to tearing of the protective net, causing serious safety accidents. Furthermore, the existing device's own installation structure is prone to pulling and damage during sudden impacts, affecting the use of the device. Summary of the Invention

[0004] The purpose of this invention is to provide a safety protection and anti-fall device and method suitable for use in water conservancy construction sites, so as to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a safety protection and anti-fall device suitable for use in water conservancy construction sites, comprising a locking column, a locking ring sleeved on the outer wall of the locking column, a trigger column horizontally arranged at the other end of the locking column, a locking ring of the same structure fixedly sleeved on the outer wall of the trigger column, a reinforcing mechanism movably arranged inside the locking column, and a protective mechanism horizontally arranged on one side of the trigger column;

[0005] The reinforcement mechanism includes a reinforcement chamber, a fixing plate, and a trigger. The reinforcement chamber is located inside the inner wall of the locking column. A strong spring is fixedly connected to the top wall of the reinforcement chamber, and a compression ring is fixedly connected to the bottom end of the strong spring. The outer wall of the fixing plate is fixedly connected to the inner wall of the reinforcement chamber. A rotating column is rotatably connected to the top of the fixing plate. Two sets of winding grooves are provided on the outer wall of the rotating column. A sliding column is fixedly connected to the bottom end of the rotating column. The trigger is movably disposed inside the reinforcement chamber.

[0006] Preferably, the triggering element includes a trigger block, the outer wall of the trigger block is hinged to the inner wall of the reinforcement chamber, a wire hole is provided in the inner wall of the trigger block, a sliding groove is provided at one end of the trigger block, a telescopic spring is fixedly connected to both ends of the axis of the sliding groove, and a locking block is fixedly connected to the front end of both sets of telescopic springs, and an arc-shaped groove is provided at the closing point of both sets of locking blocks.

[0007] Preferably, the reinforcement mechanism further includes a reinforcement tube, both ends of which are fixedly connected to two sets of locking rings and are internally connected. A steel cable runs through the inside of the reinforcement tube, and one end of the steel cable is wrapped around the inner wall of the winding groove.

[0008] Preferably, the locking posts and trigger posts are arranged symmetrically in two sets about the axis of the reinforcing rod, and the two sets of locking posts and the two sets of trigger posts are connected by the reinforcing rod. The inner ends of the reinforcing rods are arranged in a rectangular array with equal spacing of several connecting blocks. The connecting blocks are connected by metal cables. One side of the connecting block is slidably connected to the outer wall of the reinforcing rod. Steel cables are fixedly connected to the connecting blocks located on the side of the locking post, and one end of the steel cable extends into the reinforcing chamber and is wound around the inner wall of the winding groove.

[0009] Preferably, the protective mechanism includes a protective chamber, a trigger rod, and an operating chamber. The protective chamber is located within the inner wall of the trigger column. A threaded rod is rotatably connected to the bottom plate of the protective chamber. A take-up groove is provided at the central axis of the threaded rod. A sliding sleeve is threadedly fitted onto the outer wall of the threaded rod. An L-shaped rod is fixedly connected to one side of the sliding sleeve. A movable wheel is rotatably connected to the top of the L-shaped rod. The outer wall of the trigger rod is slidably disposed with the inner wall of the locking ring. An inclined groove is provided on the bottom wall of the trigger rod. The operating chamber is horizontally disposed on one side of the trigger column.

[0010] A tension spring is fixedly connected to the inner wall of the operating chamber, and the front end of the tension spring is fixedly connected to the connecting block.

[0011] Preferably, the operating compartment includes a movable compartment located at the rear end of the operating compartment. A limiting plate is slidably disposed in the inner wall of the movable compartment, and the limiting plate and the trigger rod are horizontally disposed. A T-shaped rod is fixedly connected to the front end of the limiting plate, and the two ends of the T-shaped rod are respectively connected to the connecting block in the operating compartment.

[0012] Preferably, the operating compartment further includes a locking compartment, the top of which is fitted to the bottom of the operating compartment, and the locking compartment and the operating compartment are bolted together. The top of the locking compartment has a rotating groove, and a trigger plate is rotatably connected to the inner wall of the rotating groove. A locking rod is hinged to the bottom of the trigger plate, and a locking sleeve is connected to the bottom of the locking rod. A locking groove is formed in the inner wall of the locking sleeve, and an elastic piece is fixedly connected to the bottom of the locking sleeve. A snap-fit ​​rod is inserted into the bottom of the locking sleeve, and the top of the snap-fit ​​rod is a frustum.

[0013] A method for a safety protection and fall prevention device suitable for use at water conservancy construction sites, characterized by the following steps:

[0014] S1. When the device is in use, when a large rock on the dam slope causes a landslide, the large rock will be blocked by a metal mesh formed by several connecting blocks and metal cables, preventing the large rock from falling directly into the dam.

[0015] S2. Then, as the metal mesh is pulled, the two sets of locking posts above the metal mesh cause the connecting block on one side to pull the steel cable, making the outer diameter of one side of the steel cable larger than the inner diameter of the arc groove. As the steel cable is pulled, the steel cable pulls the entire trigger block to rotate clockwise.

[0016] S3. At this point, as the trigger block rotates and is removed, the entire compression ring is released from its restriction and begins to slide downwards. Simultaneously, when the steel cable pulls the trigger block to its maximum angle, the trigger block cannot rotate. At this time, through the arc groove in the trigger block, the trigger blocks on both sides of the compression ring retract against the telescopic spring, allowing the steel cable to slide through the threading hole in the trigger plate. Then, the steel cable drives the rotating column to rotate through the winding groove, and the rotating column drives the sliding column to rotate. At this time, due to the downward movement of the compression ring, the entire sliding column also rotates during the downward movement of the sliding column, rotating the sliding column into the soil to increase stability.

[0017] S4. Due to the setting of two sets of take-up grooves and the setting of take-up groove in the trigger column, as the rotating column rotates, the take-up grooves take up the steel cable, pulling the threaded rod with the take-up groove to rotate. The threaded rod drives the sliding sleeve to rise. When the sliding sleeve rises, it will squeeze the L-shaped rod to rise. The top of the L-shaped rod squeezes the inclined groove at the bottom of the trigger rod, causing the trigger rod to move backward, causing the trigger rod to contact the locking of the limiting plate, causing several connecting blocks in the movable compartment to move upward, and buffering through the tension spring to avoid excessive pulling and tearing of the metal mesh.

[0018] S5. During the forward movement of the limiting plate, the trigger plate will be pushed to rotate. The locking rod at the lower end of the trigger plate will push the locking sleeve to move downward. Due to the setting of the elastic plate and locking groove below the locking sleeve, the elastic plate, through the setting of the snap-fit ​​rod of the frustum structure, makes the entire locking sleeve fit on the snap-fit ​​rod. The elastic plate resets and wraps the top of the entire snap-fit ​​rod, thereby increasing the reinforcement structure of the protective chamber and the operating chamber.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In this invention, by setting up a reinforcement mechanism, the restriction on the compression ring is released after the trigger column is pulled, so that when the sliding column rotates, force is applied to it, allowing the sliding column to penetrate into the soil and increasing stability.

[0021] In this invention, the rotation of the rotating column will drive the threaded rod to rotate, causing the trigger L-shaped rod to push the trigger rod to contact the restriction plate, causing the lower end of the entire metal mesh to move upward, pulling the tension spring for buffering and preventing the metal mesh from tearing.

[0022] In this invention, as the limiting plate moves, it pushes the trigger plate to retract, pressing down to lock the locking sleeve and locking it with the snap rod, increasing the stability of the entire mechanism and preventing the fixed structure from falling off. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall assembly cross-section of the present invention;

[0024] Figure 2 This is a cross-sectional view of the reinforcement mechanism in this invention;

[0025] Figure 3 This is a schematic diagram of the connection structure between the locking post and the trigger post in this invention;

[0026] Figure 4 This is a top view cross-sectional structural diagram of the trigger element in this invention;

[0027] Figure 5 This is a partial cross-sectional view of the protective mechanism in this invention;

[0028] Figure 6 This is a schematic diagram of the connection structure between the operating compartment and the locking compartment in this invention;

[0029] Figure 7 This is a top view cross-sectional structural diagram of the operating compartment in this invention;

[0030] Figure 8 This is a schematic diagram of the connection structure between the locking sleeve and the snap-fit ​​rod in this invention;

[0031] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0032] Figure 10 For the present invention Figure 5 Enlarged structural diagram at point B;

[0033] Figure 11 For the present invention Figure 6 Enlarged structural diagram at point C.

[0034] In the diagram: 1. Locking pin; 2. Locking ring; 3. Trigger pin; 4. Reinforcing mechanism; 41. Reinforcing chamber; 42. Strong spring; 43. Compression ring; 44. Fixing plate; 45. Rotating pin; 46. Rewinding groove; 47. Sliding pin; 48. Trigger; 481. Trigger block; 482. Sliding groove; 483. Locking block; 484. Arc groove; 49. Reinforcing tube; 5. Protective mechanism; 51. Protective chamber; 52. Threaded rod; 53. Sliding sleeve; 54. L-shaped rod; 55. Moving wheel; 56. Trigger rod; 57. Operating chamber; 571. Movable chamber; 572. Limiting plate; 573. T-shaped rod; 574. Locking chamber; 575. Trigger plate; 576. Locking rod; 577. Locking sleeve; 578. Elastic sheet; 579. Snap-fit ​​rod; 6. Connecting block. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1 to 11 The present invention provides a technical solution: a safety protection and anti-fall device suitable for use in water conservancy construction sites, including a locking column 1, a locking ring 2 sleeved on the outer wall of the locking column 1, a trigger column 3 horizontally arranged at the other end of the locking column 1, a locking ring 2 with the same structure fixedly sleeved on the outer wall of the trigger column 3, a reinforcing mechanism 4 movably arranged inside the locking column 1, and a protective mechanism 5 horizontally arranged on one side of the trigger column 3.

[0037] The reinforcement mechanism 4 includes a reinforcement chamber 41, a fixing plate 44, and a trigger 48. The reinforcement chamber 41 is located inside the inner wall of the locking post 1. A strong spring 42 is fixedly connected to the top wall of the reinforcement chamber 41, and a compression ring 43 is fixedly connected to the bottom end of the strong spring 42. The outer wall of the fixing plate 44 is fixedly connected to the inner wall of the reinforcement chamber 41. A rotating post 45 is rotatably connected to the top of the fixing plate 44. Two sets of winding grooves 46 are provided on the outer wall of the rotating post 45. A sliding post 47 is fixedly connected to the bottom end of the rotating post 45. The trigger 48 is movably disposed inside the reinforcement chamber 41. With the reinforcement mechanism 4, when the trigger post 3 is pulled, the restriction on the compression ring 43 will be released, so that when the sliding post 47 rotates, force is applied to it, causing the sliding post 47 to penetrate into the soil, increasing stability.

[0038] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 9 As shown, the trigger 48 includes a trigger block 481. The outer wall of the trigger block 481 is hinged to the inner wall of the reinforced chamber 41. A wire hole is provided in the inner wall of the trigger block 481. A sliding groove 482 is provided at one end of the trigger block 481. Both ends of the axis of the sliding groove 482 are fixedly connected to telescopic springs, and the front ends of the two sets of telescopic springs are fixedly connected to locking blocks 483. The closing parts of the two sets of locking blocks 483 are provided with arc-shaped grooves 484. Then, as the metal mesh is pulled, the connecting block 6 on one side pulls the steel cable through the setting of the two sets of locking posts 1 above the metal mesh. This makes the outer diameter of one side of the steel cable larger than the inner diameter of the arc-shaped groove 484, so that as the steel cable is pulled, the steel cable pulls the entire trigger block 481 to rotate clockwise.

[0039] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the reinforcement mechanism 4 also includes a reinforcement tube 49. Both ends of the reinforcement tube 49 are fixedly connected to two sets of locking rings 2 and are internally connected. A steel cable runs through the inside of the reinforcement tube 49, and one end of the steel cable is wrapped around the inner wall of the take-up groove 46. At this time, due to the rotation and removal of the trigger block 481, the entire compression ring 43 is released from restriction and begins to slide downward. At the same time, when the steel cable pulls the trigger block 481 to the maximum angle, the trigger block 481 cannot rotate. At this time, through the setting of the arc groove 484 in the trigger block 481, the trigger blocks 481 on both sides are compressed to overcome the telescopic spring and retract, so that the steel cable can slide through the wire hole in the trigger plate 575. Then, the steel cable drives the rotating column 45 to rotate through the take-up groove 46, and the rotating column 45 drives the sliding column 47 to rotate. At this time, due to the downward movement of the compression ring 43, the entire sliding column 47 also rotates during the downward movement of the sliding column 47, rotating the sliding column 47 into the soil to increase stability.

[0040] In this embodiment, as Figure 1 and Figure 3 As shown, there are two sets of locking posts 1 and trigger posts 3 symmetrically arranged about the axis of the reinforcing rod. The two sets of locking posts 1 and the two sets of trigger posts 3 are connected by the reinforcing rod. Several connecting blocks 6 are arranged in a rectangular array at equal intervals on the inner end of several reinforcing rods. The connecting blocks 6 are connected by metal cables. One side of the connecting block 6 is slidably connected to the outer wall of the reinforcing rod. Steel cables are fixedly connected to the connecting blocks 6 on the side of the locking post 1. One end of the steel cable extends into the reinforcing chamber 41 and is wound around the inner wall of the winding groove 46. Through the arrangement of several connecting blocks 6 and metal cables, a metal mesh can be formed to block the rocks on the dam slope and prevent them from sliding down.

[0041] In this embodiment, as Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 10 As shown, the protective mechanism 5 includes a protective chamber 51, a trigger rod 56, and an operating chamber 57. The protective chamber 51 is located in the inner wall of the trigger column 3. A threaded rod 52 is rotatably connected to the bottom plate of the protective chamber 51. A take-up groove is provided at the central axis of the threaded rod 52. A sliding sleeve 53 is threadedly fitted on the outer wall of the threaded rod 52. An L-shaped rod 54 is fixedly connected to one side of the sliding sleeve 53. A moving wheel 55 is rotatably connected to the top of the L-shaped rod 54. The outer wall of the trigger rod 56 is slidably disposed with the inner wall of the locking ring 2. An inclined groove is provided on the bottom wall of the trigger rod 56. The operating chamber 57 is horizontally disposed on one side of the trigger column 3.

[0042] A tension spring is fixedly connected to the inner wall of the operating chamber 57, and the front end of the tension spring is fixedly connected to the connecting block 6. Due to the setting of two sets of winding grooves 46 and the setting of the winding groove in the trigger column 3, as the rotating column 45 rotates, the steel cable is wound up by the winding grooves 46, which pulls the threaded rod 52 with the winding grooves 46 to rotate. The threaded rod 52 drives the sliding sleeve 53 to rise. When the sliding sleeve 53 rises, it will squeeze the L-shaped rod 54 to rise. The top of the L-shaped rod 54 squeezes the inclined groove at the bottom of the trigger rod 56, causing the trigger rod 56 to move backward, so that the trigger rod 56 contacts the locking of the limiting plate 572, causing several connecting blocks 6 located in the movable chamber 571 to move upward, and the tension spring is used for buffering to avoid excessive pulling and tearing of the metal mesh.

[0043] In this embodiment, as Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 11As shown, the operating chamber 57 includes a movable chamber 571, which is located at the rear end of the operating chamber 57. A limiting plate 572 is slidably disposed in the inner wall of the movable chamber 571, and the limiting plate 572 and the trigger rod 56 are horizontally disposed. A T-shaped rod 573 is fixedly connected to the front end of the limiting plate 572, and both ends of the T-shaped rod 573 are respectively connected to the connecting blocks 6 in the operating chamber 57. Through the setting of the T-shaped rod 573, several connecting blocks 6 below the metal mesh can be pushed upward synchronously, reducing the pulling of the metal mesh on the stones.

[0044] In this embodiment, as Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 11 As shown, the operating chamber 57 also includes a locking chamber 574. The top of the locking chamber 574 is fitted to the bottom of the operating chamber 57, and the locking chamber 574 and the operating chamber 57 are bolted together. The top of the locking chamber 574 has a rotating groove, and a trigger plate 575 is rotatably connected to the inner wall of the rotating groove. A locking rod 576 is hinged to the bottom of the trigger plate 575. A locking sleeve 577 is connected to the bottom of the locking rod 576. A locking groove is formed in the inner wall of the locking sleeve 577, and an elastic piece 578 is fixedly connected to the bottom of the locking sleeve 577. A snap-fit ​​rod 57 is inserted into the bottom of the locking sleeve 577. 9. The top of the locking rod 579 is a frustum. During the forward movement of the limiting plate 572, it will push the trigger plate 575 to rotate. The locking rod 576 at the lower end of the trigger plate 575 will push the locking sleeve 577 to move downward. Due to the setting of the elastic piece 578 and the locking groove below the locking sleeve 577, the elastic piece 578, through the setting of the frustum structure locking rod 579, makes the entire locking sleeve 577 fit on the locking rod 579. The elastic piece 578 resets and wraps the top of the entire locking rod 579, thereby increasing the reinforcement structure of the protective chamber 51 and the operating chamber 57.

[0045] In this embodiment, as Figures 1 to 11 As shown, a method for a safety protection and fall prevention device suitable for use at water conservancy construction sites is characterized by the following steps:

[0046] S1. When the device is in use, when a large rock on the dam slope causes a landslide, the large rock will be blocked by the metal mesh formed by several connecting blocks 6 and metal cables, thus preventing the large rock from falling directly into the landslide.

[0047] S2. Then, as the metal mesh is pulled, the two sets of locking posts 1 above the metal mesh are set. As the metal mesh is pulled, the connecting block 6 on one side pulls the steel cable, so that the outer diameter of one side of the steel cable is larger than the inner diameter of the arc groove 484. As the steel cable is pulled, the steel cable pulls the entire trigger block 481 to rotate clockwise.

[0048] S3. At this time, due to the removal of the trigger block 481 by rotation, the entire compression ring 43 is released from its restriction and begins to slide downward. At the same time, when the steel cable pulls the trigger block 481 to its maximum angle, the trigger block 481 cannot rotate. At this time, through the setting of the arc groove 484 in the trigger block 481, the trigger blocks 481 on both sides of the compression ring retract against the telescopic spring, allowing the steel cable to slide through the wire hole in the trigger plate 575. Then, the steel cable drives the rotating column 45 to rotate through the winding groove 46, and the rotating column 45 drives the sliding column 47 to rotate. At this time, due to the downward movement of the compression ring 43, the entire sliding column 47 also rotates during the downward movement of the sliding column 47, rotating the sliding column 47 into the soil to increase stability.

[0049] S4. Due to the setting of two sets of take-up grooves 46 and the setting of the take-up groove in the trigger column 3, as the rotating column 45 rotates, the take-up groove 46 is used to take up the steel cable, pulling the threaded rod 52 with the take-up groove 46 to rotate. The threaded rod 52 drives the sliding sleeve 53 to rise. When the sliding sleeve 53 rises, it will squeeze the L-shaped rod 54 to rise. The top of the L-shaped rod 54 squeezes the inclined groove at the bottom of the trigger rod 56, causing the trigger rod 56 to move backward, causing the trigger rod 56 to contact the locking of the limiting plate 572, causing several connecting blocks 6 located in the movable chamber 571 to move upward, and buffered by the tension spring to avoid excessive pulling and tearing of the metal mesh.

[0050] S5. During the forward movement of the limiting plate 572, the trigger plate 575 will be pushed to rotate. The locking rod 576 at the lower end of the trigger plate 575 will push the locking sleeve 577 downward. Due to the setting of the elastic piece 578 and the locking groove below the locking sleeve 577, the elastic piece 578 will be set on the locking rod 579 through the setting of the frustum structure, so that the entire locking sleeve 577 will be fitted on the locking rod 579. The elastic piece 578 will be reset to wrap the top of the entire locking rod 579, thereby increasing the reinforcement structure of the protective chamber 51 and the operating chamber 57.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection and anti-fall device suitable for use at water conservancy construction sites, comprising a locking post (1), characterized in that: A locking ring (2) is fitted on the outer wall of the locking post (1), and a trigger post (3) is horizontally arranged at the other end of the locking post (1). A locking ring (2) with the same structure is fixedly fitted on the outer wall of the trigger post (3). A reinforcing mechanism (4) is movably arranged inside the locking post (1), and a protective mechanism (5) is horizontally arranged on one side of the trigger post (3). The reinforcement mechanism (4) includes a reinforcement chamber (41), a fixing plate (44), and a trigger (48). The reinforcement chamber (41) is located in the inner wall of the locking column (1). A strong spring (42) is fixedly connected to the top wall of the reinforcement chamber (41), and a compression ring (43) is fixedly connected to the bottom end of the strong spring (42). The outer wall of the fixing plate (44) is fixedly connected to the inner wall of the reinforcement chamber (41). A rotating column (45) is rotatably connected to the top of the fixing plate (44). Two sets of winding grooves (46) are provided on the outer wall of the rotating column (45). A sliding column (47) is inserted into the bottom end of the rotating column (45). The trigger (48) is movably disposed inside the reinforcement chamber (41). The locking post (1) and the trigger post (3) are symmetrically arranged in two sets about the axis of the reinforcing rod, and the two sets of locking posts (1) and the two sets of trigger posts (3) are connected by the reinforcing rod. The inner ends of the reinforcing rods are arranged in a rectangular array with equal spacing of several connecting blocks (6). The several connecting blocks (6) are connected by metal cables. One side of the connecting block (6) is slidably connected to the outer wall of the reinforcing rod. The protective mechanism (5) includes a protective chamber (51), a trigger rod (56), and an operating chamber (57). The protective chamber (51) is located in the inner wall of the trigger column (3). A threaded rod (52) is rotatably connected to the bottom plate of the protective chamber (51). A take-up groove is provided at the central axis of the threaded rod (52). A sliding sleeve (53) is threadedly fitted on the outer wall of the threaded rod (52). An L-shaped rod (54) is fixedly connected to one side of the sliding sleeve (53). A moving wheel (55) is rotatably connected to the top of the L-shaped rod (54). The outer wall of the trigger rod (56) is slidably disposed with the inner wall of the locking ring (2). An inclined groove is provided on the bottom wall of the trigger rod (56). The operating chamber (57) is horizontally disposed on one side of the trigger column (3). A tension spring is fixedly connected to the inner wall of the operating chamber (57), and the front end of the tension spring is fixedly connected to the connecting block (6). The operating chamber (57) includes a movable chamber (571), which is located at the rear end of the operating chamber (57). A limiting plate (572) is slidably disposed in the inner wall of the movable chamber (571), and the limiting plate (572) and the trigger rod (56) are horizontally disposed. A T-shaped rod (573) is fixedly connected to the front end of the limiting plate (572), and both ends of the T-shaped rod (573) are respectively connected to the connecting block (6) in the operating chamber (57).

2. The safety protection and anti-fall device suitable for use at water conservancy construction sites according to claim 1, characterized in that: The trigger (48) includes a trigger block (481), the outer wall of the trigger block (481) is hinged to the inner wall of the reinforced chamber (41), a wire hole is provided in the inner wall of the trigger block (481), a sliding groove (482) is provided at one end of the trigger block (481), a telescopic spring is fixedly connected to both ends of the axis of the sliding groove (482), and a locking block (483) is fixedly connected to the front end of both sets of telescopic springs, and an arc groove (484) is provided at the closing point of both sets of locking blocks (483).

3. A safety protection and anti-fall device suitable for use at water conservancy construction sites according to claim 2, characterized in that: The reinforcement mechanism (4) also includes a reinforcement tube (49), both ends of which are fixedly connected to two sets of locking rings (2) and are internally connected. A steel cable runs through the inside of the reinforcement tube (49), and one end of the steel cable is wrapped around the inner wall of the winding groove (46).

4. A safety protection and anti-fall device suitable for use at water conservancy construction sites according to claim 3, characterized in that: Steel cables are fixedly connected to the connecting blocks (6) on one side of the locking post (1), and one end of the steel cable extends into the reinforcement chamber (41) and is wrapped around the inner wall of the winding groove (46).

5. A safety protection and anti-fall device suitable for use at water conservancy construction sites according to claim 1, characterized in that: The operating chamber (57) also includes a locking chamber (574). The top of the locking chamber (574) is fitted to the bottom of the operating chamber (57). The locking chamber (574) and the operating chamber (57) are bolted together. The top of the locking chamber (574) is provided with a rotating groove, and a trigger plate (575) is rotatably connected to the inner wall of the rotating groove. A locking rod (576) is hinged to the bottom of the trigger plate (575). A locking sleeve (577) is connected to the bottom of the locking rod (576). A locking groove is provided in the inner wall of the locking sleeve (577). An elastic piece (578) is fixedly connected to the bottom of the locking sleeve (577). A snap-fit ​​rod (579) is inserted into the bottom of the locking sleeve (577), and the top of the snap-fit ​​rod (579) is a frustum.

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