A safety protection device for construction

Abstract

The present application relates to the technical field of power installation construction, and more particularly to a safety protection device for construction, which comprises a protective shell and safety waistband hooks, and a plurality of safety waistband hooks are uniformly fixed on the outer side of the protective shell, a carrying anti-unhooking mechanism is assembled on the inner side of the protective shell, the carrying anti-unhooking mechanism is used for fixing the protective shell on a telegraph pole, the carrying anti-unhooking mechanism comprises a guide piece and a transmission piece, the inner side of the guide piece is assembled with the transmission piece, the transmission piece is used for providing power guidance for the carrying anti-unhooking mechanism, and the guide piece comprises a rotating rod, a first bevel gear, a second bevel gear, a threaded rod, a vertical plate and an L-shaped fixing rod. The structural design of the carrying anti-unhooking mechanism, the auxiliary locking mechanism and the anti-reverse mechanism makes the device convenient to fix the protective shell on the telegraph pole, prevents loosening and rotation, prevents accidents, and improves the safety of the device.

Description

Technical Field

[0001] This invention relates to the field of power installation and construction technology, and in particular to a safety protection device for construction. Background Technology

[0002] Electricity is an energy source that uses electrical energy as its power source. Invented in the 1870s, the invention and application of electricity sparked the Second Industrial Revolution. It became one of the three technological revolutions that have occurred in the world since the 18th century, and since then, technology has changed people's lives.

[0003] The large-scale power systems that emerged in the 20th century are among the most important achievements in the history of human engineering science. They are power production and consumption systems composed of power generation, transmission, transformation, distribution, and consumption. They convert primary energy from nature into electricity through mechanical energy devices, and then supply this electricity to various users through transmission, transformation, and distribution. All of this requires power installation and construction to complete the subsequent power transmission work. According to the State Grid Corporation's substation safety regulations, when performing power construction work at heights, safety belts must be worn to ensure personal safety. Safety belts should be attached to sturdy structures, not unstable ones. When working at heights on utility poles, safety protection devices are often used to secure the poles so that workers can hook their safety belts onto them.

[0004] However, in the process of using existing technology, since the utility pole is a rotating body, the general safety protection structure is prone to loosening and slight rotation after being clamped and fixed to the utility pole, which poses potential safety hazards. Therefore, we propose a safety protection device for construction. Summary of the Invention

[0005] The purpose of this invention is to provide a safety protection device for construction, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A construction safety protection device includes a protective shell and safety belt hooks. Multiple safety belt hooks are evenly distributed and fixed on the outer side of the protective shell. An anti-detachment mechanism is installed on the inner side of the protective shell to secure the protective shell to a utility pole. The anti-detachment mechanism includes a guide and a transmission component. The guide is installed on the inner side of the protective shell, and the transmission component is installed on the inner side of the guide. The transmission component provides power guidance for the anti-detachment mechanism.

[0008] Preferably, the guide component includes a rotating rod, a first bevel gear, a second bevel gear, a threaded rod, a vertical plate, and an L-shaped fixing rod. The rotating rod is rotatably connected to the top of the protective shell, the first bevel gear is fixed to the bottom of the rotating rod, the second bevel gear is meshed with the bottom of the first bevel gear, a threaded rod is fixed to the inner side of the second bevel gear, one end of the threaded rod is rotatably connected to the inner side of the protective shell through a bearing, the other end of the threaded rod is rotatably connected to the vertical plate through a bearing, the vertical plate is fixed to the bottom of the inner side of the protective shell, and an L-shaped fixing rod is threadedly connected to the outer side of the threaded rod.

[0009] Preferably, the guide further includes a balance plate, rollers, and stabilizing guide rails. The bottom of the L-shaped fixing rod is fixed with a balance plate, and both ends of the balance plate are rotatably connected to rollers via pins. Stabilizing guide rails corresponding to the positions of the rollers are provided on both sides of the bottom of the protective shell, and the rollers are in close contact with the inner side of the stabilizing guide rails.

[0010] Preferably, the transmission component includes a displacement propulsion plate, a mounting sleeve, a first auxiliary force guide rod, a progressive force generating rod, a side fixing bracket, a second auxiliary force guide rod, a counter-displacement rod, an arc-shaped rotary clamping plate, and a mating surface groove. One end of the L-shaped fixing rod is fixed to the displacement propulsion plate, and both ends of the displacement propulsion plate are slidably connected to the mounting sleeve. The top of each mounting sleeve is rotatably connected to the first auxiliary force guide rod via pins. One end of each first auxiliary force guide rod is rotatably connected to the progressive force generating rod via pins. The outer side of the progressive force generating rod... Each of the protective shells is slidably connected to a side fixing bracket. One end of each side fixing bracket is fixed to the inner side of the protective shell. The bottom of each side fixing bracket is rotatably connected to a second auxiliary force guide rod via a pin. One end of each second auxiliary force guide rod is rotatably connected to a mounting sleeve via a pin. One end of each progressive force rod is fixed to a counter-displacement rod. One end of each counter-displacement rod is fixed to an arc-shaped rotating clamp. A mating groove is provided on the outer side of the protective shell, offset from the position of the safety belt hook. The counter-displacement rod is slidably connected to the mating groove.

[0011] Preferably, an auxiliary locking mechanism is fitted between the protective shell and the displacement propulsion plate, the auxiliary locking mechanism being used to increase stability.

[0012] Preferably, the auxiliary locking mechanism includes a central push rod, a guide center plate, a semi-circular groove, anti-slip pointed rods, a limiting groove, a locking positioning rod, a first connecting spring, and an opposite side groove. A central push rod is fixed to one side of the displacement push plate, and a guide center plate is fixed to one end of the central push rod. A semi-circular groove is formed on one side of the guide center plate. Multiple anti-slip pointed rods are evenly distributed and slidably connected to the inner side of the semi-circular groove. Multiple limiting grooves corresponding to the positions of the anti-slip pointed rods are evenly distributed at the bottom of the inner side of the mating surface groove. The anti-slip pointed rod is slidably connected to the groove. The inner side of the anti-slip pointed rod is provided with a strip groove. The inner side of the strip groove is slidably connected with a locking positioning rod. The locking positioning rod is fixed to the protective shell. A first connecting spring is fixed to one side of the locking positioning rod. One end of the first connecting spring is fixed to the anti-slip pointed rod. The first connecting spring is slidably connected to the strip groove. One end of the arc-shaped rotating clamp is provided with a counter-side groove corresponding to the position of the anti-slip pointed rod. The anti-slip pointed rod is slidably connected to the counter-side groove.

[0013] Preferably, the extension line of the center of the semicircular groove is perpendicular to the line connecting the centers of the two arc-shaped rotating clamps.

[0014] Preferably, the arc of the curve at the bottom center of the plurality of locking positioning rods is the same as the arc of the semi-circular groove.

[0015] Preferably, an anti-reverse mechanism is assembled between the protective shell and the rotating rod, the anti-reverse mechanism being used to prevent the rotating rod from rotating back.

[0016] Preferably, the anti-reverse mechanism includes a U-shaped plate, a connecting guide plate, a mating frame, a through groove, a U-shaped ratchet bracket, a ratchet, an I-beam groove, a load-bearing rod, and a second connecting spring. The outer side of the rotating rod is rotatably connected to the U-shaped plate, and the U-shaped plate is fixed to the protective shell. Both sides of the inside of the U-shaped plate are fixed with connecting guide plates. One end of the two connecting guide plates is fixed with a mating frame. The top of the mating frame has a through groove, and the inner side of the through groove is slidably connected to the U-shaped ratchet bracket. Both ends of the U-shaped ratchet bracket are meshed with ratchets, and the inner sides of the ratchets are fixed to the rotating rod. One end of the mating frame has an I-beam groove, and the middle of the inner side of the I-beam groove is slidably connected to a load-bearing rod. The outer side of the load-bearing rod is sleeved with a second connecting spring, and one end of the second connecting spring is fixed to the U-shaped ratchet bracket.

[0017] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0018] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0019] The present invention, through its structural design incorporating an anti-detachment mechanism, an auxiliary locking mechanism, and an anti-reverse mechanism, makes it easy to fix the protective shell to the utility pole, while preventing loosening and rotation, thus preventing accidents and improving the safety of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the protective shell of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure between the L-shaped fixing rod and the displacement propulsion plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the mating surface groove and the limiting groove of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection structure between the anti-slip pointed rod and the opposite side groove of the present invention;

[0026] Figure 6 This is a cross-sectional structural diagram of the U-shaped plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the I-beam groove and the load-bearing rod of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the diagram: 1. Protective shell; 2. Safety belt hook; 3. Rotating rod; 4. First bevel gear; 5. Second bevel gear; 6. Threaded rod; 7. Vertical plate; 8. L-shaped fixing rod; 9. Balance plate; 10. Roller; 11. Stabilizing guide rail; 12. Displacement propulsion plate; 13. Mounting sleeve; 14. First auxiliary force guide rod; 15. Progressive force rod; 16. Side fixing bracket; 17. Second auxiliary force guide rod; 18. Opposing displacement rod; 19. 20. Arc-shaped rotating clamp; 21. Mating surface groove; 22. Central push rod; 23. Guide center plate; 24. Semi-circular groove; 25. Anti-slip pointed rod; 26. Limiting groove; 27. Locking positioning rod; 28. First connecting spring; 29. ​​Opposite side groove; 30. U-shaped plate; 31. Connecting guide plate; 32. Mating frame; 33. Through groove; 34. U-shaped ratchet frame; 35. Ratchet; 36. I-beam groove; 37. Support rod; 38. Second connecting spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] Example 1

[0032] Reference Figure 1-5 A construction safety protection device includes a protective shell 1 and safety belt hooks 2. Multiple safety belt hooks 2 are evenly distributed and fixed on the outer side of the protective shell 1. An anti-detachment mechanism is installed on the inner side of the protective shell 1. The anti-detachment mechanism is used to fix the protective shell 1 to the utility pole. The anti-detachment mechanism includes a guide and a transmission component. The guide is installed on the inner side of the protective shell 1, and the transmission component is installed on the inner side of the guide. The transmission component is used to provide power guidance for the anti-detachment mechanism.

[0033] The guide components include a rotating rod 3, a first bevel gear 4, a second bevel gear 5, a threaded rod 6, a vertical plate 7, and an L-shaped fixing rod 8. The rotating rod 3 is rotatably connected to the top of the protective shell 1. The first bevel gear 4 is fixed to the bottom of the rotating rod 3. The second bevel gear 5 is meshed with the bottom of the first bevel gear 4. A threaded rod 6 is fixed to the inner side of the second bevel gear 5. One end of the threaded rod 6 is rotatably connected to the inner side of the protective shell 1 via a bearing. The other end of the threaded rod 6 is rotatably connected to the vertical plate 7 via a bearing. The vertical plate 7 is fixed to the bottom of the inner side of the protective shell 1. The outer side of the threaded rod 6 is threaded... The L-shaped fixing rod 8 is connected to the rotating rod 3. It can be understood that a handwheel is fixed at the top of the rotating rod 3, which is convenient for the user to rotate the rotating rod 3. When it is necessary to fix the protective shell 1 to the utility pole, the rotating rod 3 is rotated, which causes the first bevel gear 4 to mesh with the second bevel gear 5 and rotate. This causes the two progressive force rods 15 to move in a direction closer to each other. At the same time, the two opposing displacement rods 18 drive the arc-shaped rotating clamp 19 to move in a direction closer to each other along the inner side of the mating surface groove 20 until the two arc-shaped rotating clamps 19 are clamped and fixed to the utility pole.

[0034] The guide also includes a balance plate 9, rollers 10, and a stabilizing guide rail 11. The balance plate 9 is fixed to the bottom of the L-shaped fixed rod 8. Both ends of the balance plate 9 are rotatably connected to the rollers 10 by pins. Stabilizing guide rails 11 corresponding to the positions of the rollers 10 are opened on both sides of the bottom of the protective shell 1. The rollers 10 are in close contact with the inner side of the stabilizing guide rail 11. When the L-shaped fixed rod 8 moves, the balance plate 9 drives the rollers 10 to roll along the inner side of the stabilizing guide rail 11, providing guidance for the movement of the L-shaped fixed rod 8.

[0035] The transmission components include a displacement propulsion plate 12, a mounting sleeve 13, a first auxiliary force guide rod 14, a progressive force generating rod 15, a side fixing bracket 16, a second auxiliary force guide rod 17, a counter-displacement rod 18, an arc-shaped rotary clamping plate 19, and a mating surface groove 20. One end of the L-shaped fixing rod 8 is fixed to the displacement propulsion plate 12. Both ends of the displacement propulsion plate 12 are slidably connected to the mounting sleeve 13. The top of each mounting sleeve 13 is rotatably connected to the first auxiliary force guide rod 14 via pins. One end of each first auxiliary force guide rod 14 is rotatably connected to the progressive force generating rod 15 via pins. The outer side of each progressive force generating rod 15 is slidably connected to the side fixing bracket 16. One end of each side fixing bracket 16 is fixed to the inside of the protective shell 1. The bottom of each side fixing bracket 16 is rotatably connected to a second auxiliary force guide rod 17 via a pin. One end of each second auxiliary force guide rod 17 is rotatably connected to a mounting sleeve 13 via a pin. One end of each progressive force rod 15 is fixed to a counter-displacement rod 18. One end of each counter-displacement rod 18 is fixed to an arc-shaped rotating clamp 19. A mating groove 20 is provided on the outer side of the protective shell 1, offset from the position of the safety belt hook 2. The counter-displacement rod 18 is slidably connected to the mating groove 20. The inner side of the arc-shaped rotating clamp 19 is provided with anti-slip texture to facilitate increased fixation of the utility pole.

[0036] An auxiliary locking mechanism is installed between the protective shell 1 and the displacement propulsion plate 12 to increase stability.

[0037] The auxiliary locking mechanism includes a central push rod 21, a guide center plate 22, a semi-circular groove 23, an anti-slip pointed rod 24, a limiting groove 25, a locking positioning rod 26, a first connecting spring 27, and an opposite side groove 28. A central push rod 21 is fixed to one side of the displacement push plate 12, and a guide center plate 22 is fixed to one end of the central push rod 21. A semi-circular groove 23 is formed on one side of the guide center plate 22. Multiple anti-slip pointed rods 24 are evenly distributed and slidably connected to the inner side of the semi-circular groove 23. Multiple limiting grooves 25, corresponding to the positions of the anti-slip pointed rods 24, are evenly distributed at the bottom of the inner side of the mating surface groove 20. The limiting grooves 25 are slidably connected to the anti-slip pointed rods 24. The inner side of each plate has a strip groove, and a locking positioning rod 26 is slidably connected to the inner side of each strip groove. The locking positioning rod 26 is fixed to the protective shell 1. A first connecting spring 27 is fixed to one side of each locking positioning rod 26. One end of the first connecting spring 27 is fixed to the anti-slip pointed rod 24. The first connecting spring 27 is slidably connected to the strip groove. One end of each arc-shaped rotating clamp 19 has a counter-side groove 28 corresponding to the position of the anti-slip pointed rod 24. The anti-slip pointed rod 24 is slidably connected to the counter-side groove 28. When the two arc-shaped rotating clamps 19 approach each other, the counter-side groove 28 ensures that the arc-shaped rotating clamps 19 will not obstruct the movement of the anti-slip pointed rod 24.

[0038] The extension line of the center of the semicircular groove 23 is perpendicular to the line connecting the centers of the two arc-shaped rotating clamps 19. The semicircular groove 23 facilitates the uniform contact of multiple anti-slip pointed rods 24 with the outside of the utility pole.

[0039] The curvature of the curve at the bottom center of the multiple locking positioning rods 26 is the same as the curvature of the semi-circular groove 23. By setting multiple locking positioning rods 26, the compression degree of multiple first connecting springs 27 can be made consistent, which facilitates increasing the tightness between the anti-slip pointed rod 24 and the utility pole.

[0040] Example 2

[0041] Further optimizations to Example 1, specifically, such as... Figure 6-7 As shown, an anti-reverse mechanism is installed between the protective shell 1 and the rotating rod 3. The anti-reverse mechanism is used to prevent the rotating rod 3 from rotating.

[0042] The anti-reverse mechanism includes a U-shaped plate 29, a connecting guide plate 30, a mating frame 31, a through groove 32, a U-shaped ratchet bracket 33, a ratchet 34, an I-beam groove 35, a support rod 36, and a second connecting spring 37. The U-shaped plate 29 is rotatably connected to the outer side of the rotating rod 3. The U-shaped plate 29 is fixed to the protective shell 1. Connecting guide plates 30 are fixed to both sides inside the U-shaped plate 29. A mating frame 31 is fixed to one end of each of the two connecting guide plates 30. A through groove 32 is opened at the top of the mating frame 31. A U-shaped ratchet bracket 33 is slidably connected to the inner side of the through groove 32. A ratchet 34 is meshed at both ends of the U-shaped ratchet bracket 33. The inner sides of the ratchet 34 are fixed to the rotating rod 3. An I-beam groove 35 is opened at one end of the mating frame 31. A support rod 36 is slidably connected to the middle of the inner side of the I-beam groove 35. A second connecting spring 37 is sleeved on the outer side of the support rod 36. One end of the second connecting spring 37 is fixed to the U-shaped pawl bracket 33. When the rotating rod 3 rotates, because the rotating rod 3 is fixed to the ratchet 34, and the ratchet 34 is engaged with the U-shaped pawl bracket 33, the ratchet 34 can continuously push the U-shaped pawl bracket 33 when rotating, so that the U-shaped pawl bracket 33 cooperates with the I-shaped groove 35, first squeezing the second connecting spring 37, and then the I-shaped groove 35 rebounds and extends. This process is repeated until the two arc-shaped rotating clamps 19 are clamped and fixed on the utility pole. At this time, the rotating rod 3 is no longer rotated, and the ratchet 34 and the U-shaped pawl bracket 33 form a rotation limit on the rotating rod 3. When it is necessary to release the clamp on the utility pole, the support rod 36 is pulled, so that the support rod 36 drives the U-shaped pawl bracket 33 to move along the inside of the through groove 32, so that the U-shaped pawl bracket 33 releases the rotation limit on the ratchet 34.

[0043] In summary:

[0044] This invention addresses the technical problem of existing technologies where, during use, because utility poles are rotating bodies, typical safety protection structures, after being clamped and fixed to the pole, are prone to loosening and slight rotation, posing potential safety hazards. The invention employs the technical solutions described in the above embodiments. Furthermore, the implementation process of the above technical solutions is as follows:

[0045] During use, when it is necessary to fix the protective shell 1 to the utility pole, rotate the rotating rod 3, so that the rotating rod 3 drives the first bevel gear 4 to mesh with the second bevel gear 5 to rotate. Because the second bevel gear 5 is fixed to the threaded rod 6, and the threaded rod 6 is threadedly connected to the L-shaped fixing rod 8, the L-shaped fixing rod 8 can drive the displacement push plate 12 to move, so that the mounting sleeve 13 moves along the outside of the displacement push plate 12. At the same time, the mounting sleeve 13 is rotatably connected to the first auxiliary guide rod 14, the first auxiliary guide rod 14 is rotatably connected to the progressive force rod 15, and the mounting sleeve 13 is rotatably connected to the second auxiliary guide rod 17, the second auxiliary guide rod 17 is rotatably connected to the side fixing bracket 16. So the two progressive force rods 15 can move towards each other, and then the two opposing displacement rods 18 drive the arc-shaped rotary clamp 19 to move towards each other along the inner side of the mating surface groove 20 until the two arc-shaped rotary clamps 19 are clamped and fixed on the utility pole.

[0046] During the movement of the displacement propulsion plate 12, the displacement propulsion plate 12 drives the central push rod 21 and the guide center plate 22 to move, so that the guide center plate 22 pushes the anti-slip tip rod 24 through the semi-circular groove 23 to compress the first connecting spring 27 until the tip of the anti-slip tip rod 24 contacts the utility pole. Multiple anti-slip tip rods 24 are closely attached to the periphery of the utility pole to increase the friction with the utility pole.

[0047] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0048] The present invention, through its structural design incorporating an anti-detachment mechanism, an auxiliary locking mechanism, and an anti-reverse mechanism, makes it easy to fix the protective shell 1 to the utility pole, while preventing loosening and rotation, thus preventing accidents and improving the safety of the device.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A safety protection device for construction, characterized in that, The device includes a protective shell (1) and safety belt hooks (2). Multiple safety belt hooks (2) are evenly distributed and fixed on the outer side of the protective shell (1). The inner side of the protective shell (1) is equipped with a mounting anti-detachment mechanism. The mounting anti-detachment mechanism is used to fix the protective shell (1) to the utility pole. The mounting anti-detachment mechanism includes a guide and a transmission component. The inner side of the protective shell (1) is equipped with a guide, and the inner side of the guide is equipped with a transmission component. The transmission component is used to provide power guidance for the mounting anti-detachment mechanism. The guide includes a rotating rod (3), a first bevel gear (4), a second bevel gear (5), a threaded rod (6), a vertical plate (7), and an L-shaped fixing rod (8). The top of the protective shell (1) is rotatably connected to the rotating rod (3). The bottom of the rotating rod (3) is fixed to the first bevel gear (4). The bottom of the first bevel gear (4) is meshed with the second bevel gear (5). The inner side of the second bevel gear (5) is fixed to the threaded rod (6). One end of the threaded rod (6) is rotatably connected to the inner side of the protective shell (1) through a bearing. The other end of the threaded rod (6) is rotatably connected to the vertical plate (7) through a bearing. The vertical plate (7) is fixed to the bottom of the inner side of the protective shell (1). The outer side of the threaded rod (6) is threadedly connected to the L-shaped fixing rod (8). The transmission components include a displacement propulsion plate (12), a mounting sleeve (13), a first auxiliary force guide rod (14), a progressive force generating rod (15), a side fixing bracket (16), a second auxiliary force guide rod (17), a counter-displacement rod (18), an arc-shaped rotating clamp (19), and a mating groove (20). One end of the L-shaped fixing rod (8) is fixed to the displacement propulsion plate (12). Both ends of the displacement propulsion plate (12) are slidably connected to the mounting sleeve (13). The top of the mounting sleeve (13) is rotatably connected to the first auxiliary force guide rod (14) by a pin. One end of the first auxiliary force guide rod (14) is rotatably connected to the progressive force generating rod (15) by a pin. The progressive force generating rod (15) All sides are slidably connected to a side fixing bracket (16). One end of the side fixing bracket (16) is fixed to the inner side of the protective shell (1). The bottom of the side fixing bracket (16) is rotatably connected to a second auxiliary force guide rod (17) by a pin. One end of the second auxiliary force guide rod (17) is rotatably connected to the mounting slide sleeve (13) by a pin. One end of the progressive force rod (15) is fixed with a counter-displacement rod (18). One end of the counter-displacement rod (18) is fixed with an arc-shaped rotating clamp (19). A mating surface groove (20) is opened on the outer side of the protective shell (1) at a position away from the safety belt hook (2). The counter-displacement rod (18) is slidably connected to the mating surface groove (20). An auxiliary locking mechanism is assembled between the protective shell (1) and the displacement propulsion plate (12), the auxiliary locking mechanism being used to increase stability; The auxiliary locking mechanism includes a central push rod (21), a guide center plate (22), a semi-circular groove (23), an anti-slip pointed rod (24), a limiting groove (25), a locking positioning rod (26), a first connecting spring (27), and a counter-side groove (28). The central push rod (21) is fixed on one side of the displacement push plate (12), and the guide center plate (22) is fixed at one end of the central push rod (21). A semi-circular groove (23) is provided on one side of the guide center plate (22). Multiple anti-slip pointed rods (24) are evenly distributed and slidably connected on the inner side of the semi-circular groove (23). Multiple limiting grooves (25) corresponding to the positions of the anti-slip pointed rods (24) are evenly distributed at the bottom of the inner side of the mating surface groove (20). The limiting groove (25) is slidably connected to the anti-slip pointed rod (24). The inner side of the anti-slip pointed rod (24) is provided with a strip groove. The inner side of the strip groove is slidably connected with a locking positioning rod (26). The locking positioning rod (26) is fixed to the protective shell (1). A first connecting spring (27) is fixed on one side of the locking positioning rod (26). One end of the first connecting spring (27) is fixed to the anti-slip pointed rod (24). The first connecting spring (27) is slidably connected to the strip groove. One end of the arc-shaped rotating clamp (19) is provided with a counter-side groove (28) corresponding to the position of the anti-slip pointed rod (24). The anti-slip pointed rod (24) is slidably connected to the counter-side groove (28).

2. The construction safety protection device according to claim 1, characterized in that, The guide also includes a balance plate (9), rollers (10) and a stabilizing guide rail (11). The bottom of the L-shaped fixing rod (8) is fixed with a balance plate (9). Both ends of the balance plate (9) are rotatably connected to rollers (10) by pins. The bottom sides of the protective shell (1) are provided with stabilizing guide rails (11) corresponding to the positions of the rollers (10). The rollers (10) are in close contact with the inner side of the stabilizing guide rails (11).

3. The construction safety protection device according to claim 1, characterized in that, The extension line of the center of the semicircular groove (23) is perpendicular to the line connecting the centers of the two arc-shaped rotating clamps (19).

4. A construction safety protection device according to claim 1, characterized in that, The arc of the curve at the bottom center of the multiple locking positioning rods (26) is the same as the arc of the semi-circular groove (23).

5. A construction safety protection device according to claim 1, characterized in that, An anti-reverse mechanism is assembled between the protective shell (1) and the rotating rod (3), which is used to prevent the rotating rod (3) from rotating.

6. A construction safety protection device according to claim 5, characterized in that, The anti-reverse mechanism includes a U-shaped plate (29), a connecting guide plate (30), a mating frame (31), a through groove (32), a U-shaped ratchet frame (33), a ratchet (34), an I-beam groove (35), a load-bearing rod (36), and a second connecting spring (37). The U-shaped plate (29) is rotatably connected to the outside of the rotating rod (3). The U-shaped plate (29) is fixed to the protective shell (1). Connecting guide plates (30) are fixed on both sides inside the U-shaped plate (29). A mating frame (31) is fixed to one end of each of the two connecting guide plates (30). The top of the device is provided with a through groove (32), and a U-shaped ratchet bracket (33) is slidably connected to the inner side of the through groove (32). Both ends of the U-shaped ratchet bracket (33) are engaged with ratchet wheels (34). The inner side of the ratchet wheels (34) is fixed to the rotating rod (3). One end of the mating frame (31) is provided with an I-shaped groove (35). A load-bearing rod (36) is slidably connected to the middle of the inner side of the I-shaped groove (35). A second connecting spring (37) is sleeved on the outer side of the load-bearing rod (36). One end of the second connecting spring (37) is fixed to the U-shaped ratchet bracket (33).

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