Horizontal protective fence device

Abstract

The utility model discloses a horizontal protective fence device which comprises a steel wire rope winder, a steel pipe, a steel wire rope buckle connector, a steel wire rope, a bottom connecting sleeve and a clamp. The steel wire rope coiling device is arranged on the steel pipe; the steel wire rope buckle connector is arranged on the steel pipe and corresponds to the steel wire rope coiling device; the steel wire rope is arranged in the steel wire rope coiling device; one end of the steel wire rope is fixed in the steel wire rope winder, and the other end extends out of the steel wire rope winder; the steel pipe is arranged in the bottom connecting sleeve in a sleeved mode. And the bottom of the bottom connecting sleeve is fixedly connected with the clamp. When the horizontal protective fence device is used, a plurality of clamps are firstly fixed on a steel beam flange, then each steel pipe is respectively connected with a bottom connecting sleeve, and finally a steel wire rope in each steel wire rope coiling device is drawn out and fixed on a steel wire rope inserting and buckling connector on the adjacent steel pipe. And installation of the horizontal protective fence device is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of safety protection in building construction, and in particular relates to a horizontal protective fence device. Background Art

[0002] During the construction of steel structures, it is generally necessary to add fences around the steel structures to ensure construction safety. When installing existing fences, clamps are generally installed at intervals at the flange of the steel beam, and the clamps are fixed to the flange of the steel beam by tightening the clamp nuts with a wrench, and then the vertical steel pipes are welded to the clamps. A ring is welded on the top of the vertical steel pipe, and a steel wire rope is passed through the ring to connect multiple units to form a whole guardrail.

[0003] The existing fence has the following defects:

[0004] (1) When installing the fixture, a wrench is required to tighten the bolts, which involves the secondary use of tools and is not convenient;

[0005] (2) The fixture is welded to the vertical steel pipe as a whole. If the fixture is damaged during use, it must be replaced as a whole, and cannot be flexibly repaired;

[0006] (3) During installation, the wire rope lacks a fastening device after passing through the ring, which may cause slippage and create safety hazards during the construction process;

[0007] (4) After the steel wire rope passes through the ring, it is connected to form the guardrail as a whole. When in use, the steel wire rope will become loose, which cannot guarantee the safety of construction workers to the maximum extent. Summary of the invention

[0008] In order to solve the above problems, the utility model provides a horizontal protective fence device.

[0009] The technical solution of a horizontal protective fence device of the utility model is as follows:

[0010] A horizontal protective fence device includes a wire rope reel, a steel pipe, a wire rope buckle connector, a wire rope, a bottom connecting sleeve, and a clamp; the wire rope reel is arranged on the steel pipe; the wire rope buckle connector is arranged on the steel pipe and corresponds to the wire rope reel; the wire rope is arranged in the wire rope reel; one end of the wire rope is fixed in the wire rope reel, and the other end extends out of the wire rope reel; the steel pipe is sleeved in the bottom connecting sleeve; the bottom of the bottom connecting sleeve is fixedly connected to the clamp.

[0011] The utility model provides a horizontal protective fence device. When in use, firstly a plurality of clamps are fixed on the flange of the steel beam, then each steel pipe is respectively connected to the bottom connecting sleeve, and finally the steel wire rope in each wire rope reel is drawn out and fixed to the steel wire rope buckle connector on the adjacent steel pipe to complete the installation of the horizontal protective fence device.

[0012] The utility model provides a horizontal protective fence device, wherein the clamp and the steel pipe are separate structures, and when in use, only the steel pipe needs to be inserted into the bottom connecting sleeve. When the steel pipe or the clamp is damaged, only the damaged part needs to be replaced, and the use is more flexible.

[0013] Furthermore, in the horizontal protective fence device, the clamp includes an upper clamp, a lower clamp, a connecting plate, a first rotating shaft, a second rotating shaft, a fixed plate, and a fixing bolt; the middle part of the upper clamp is connected to the upper end of the connecting plate; the middle part of the lower clamp is rotatably connected to the lower end of the connecting plate via the first rotating shaft; the middle part of the fixed plate is rotatably connected to the end of the lower clamp via the second rotating shaft; the fixing bolt is screwed to the rear part of the upper clamp and passes through the upper clamp; a movable bending plate is provided at the upper end of the fixing bolt. When the clamp is installed, first clamp the upper and lower surfaces of the steel beam flange with the upper clamp and the fixed plate; then, turn the fixing bolt downward through the movable bending plate so that the lower end of the fixing bolt presses against the lower clamp, thereby causing the end of the lower clamp to rotate around the first rotation axis, and drive the fixed plate and the upper clamp to clamp the steel beam flange together; during the process, the fixed plate can rotate around the second rotation axis according to the thickness of the steel beam flange, so that when the clamp clamps steel beam flanges of different specifications, the upper clamp and the fixed plate can always fit with the steel beam flange.

[0014] Furthermore, in the horizontal protective fence device, in order to prevent the fixing bolts from slipping during the tightening of the clamps, a nut is provided at the rear of the upper clamp; the fixing bolts are screwed to the upper clamp via the nut.

[0015] Furthermore, in the horizontal protective fence device, a bolt support is provided on the lower clamping plate; the position of the bolt support corresponds to the fixing bolt. After the fixing bolt supports the lower clamping plate, the lower end of the fixing bolt falls into the bolt support, and the bolt support fixes the fixing bolt, thereby preventing the clamp from loosening.

[0016] Furthermore, in the horizontal protective fence device, in order to better fix the clamp, rubber bite racks are provided on the lower surface of the front part of the upper clamp and the upper surface of the fixing plate.

[0017] Furthermore, in the horizontal protective fence device, the bottom connecting sleeve includes a base, a sleeve arranged on the base, and a J-shaped groove arranged on the side wall of the sleeve; a spring sheet is arranged in the steel pipe; one end of the spring sheet is fixed to the inner wall of the steel pipe by a fixing nail, and the other end is connected to a marble and applies a thrust to the marble; the marble is arranged in the steel pipe and supports the opening on the side wall of the steel pipe; the diameter of the opening is smaller than the diameter of the marble. The marble is stuck in the opening on the side wall of the steel pipe, and part of it protrudes outside the side wall of the steel pipe. When the steel pipe is docked with the bottom connecting sleeve, the marble enters from the long groove of the J-shaped groove; when the bottom of the steel pipe contacts the bottom of the sleeve, the marble is located at the upper part of the horizontal groove of the J-shaped groove and does not enter the horizontal groove; thereafter, the marble is pressed and the steel pipe is rotated so that the marble enters the short groove of the J-shaped groove, and the marble is reset by the spring sheet to fix the steel pipe and the bottom connecting sleeve together.

[0018] Furthermore, in the horizontal protective fence device, the wire rope reel comprises a reel housing steel pipe, a reel bottom plate and a reel top plate respectively arranged at the upper and lower ends of the reel housing steel pipe, a central axis arranged between the reel bottom plate and the reel top plate, a lower spiral spring, an upper spiral spring, a non-reverse plug plate, a V-shaped locking assembly, a reset spring, and a non-reverse angled plug buckle; the two ends of the central axis are respectively rotatably connected to the bearings arranged in the middle of the reel bottom plate and the reel top plate; one end of the lower spiral spring is connected to the upper part of the central axis, and the other end is connected to the reel housing steel pipe; One end of the upper spiral spring is connected to the lower part of the central axis, and the other end is connected to the steel pipe of the winder housing; the anti-reverse plug disk has a plurality of holes along the circumferential direction; the anti-reverse plug disk is sleeved on the upper end of the central axis; the V-shaped locking assembly is arranged on the top plate of the winder; one end of the anti-reverse angle buckle is connected to one end of the V-shaped locking assembly, and the other end passes through the through hole on the top plate of the winder and is inserted into the hole of the anti-reverse plug disk; the reset spring is arranged between the V-shaped locking assembly and the top plate of the winder; the steel wire rope is wound around the central axis; one end of the steel wire rope is fixed on the central axis, and the other end extends from the outlet on the steel pipe of the winder housing. The steel wire rope is pulled and retracted through the steel wire rope winder. When the wire rope needs to be pulled out, press the V-shaped locking assembly, lift the anti-reverse angle buckle from the hole, then pull out the wire rope, fix one end of the wire rope to the wire rope buckle connector of the adjacent horizontal protective fence device, and finally, loosen the V-shaped locking assembly, lock the wire rope, and complete the installation of the wire rope of the horizontal protective fence device. When the wire rope needs to be recovered, first remove one end of the wire rope from the wire rope buckle connector, and then press the V-shaped locking assembly. The wire rope is recovered into the wire rope reel under the action of the rebound force of the lower spiral spring and the upper spiral spring. The wire rope reel can simplify the installation process of the horizontal protective fence device, and ensure that the wire rope is in a tightened state through the cooperation of the anti-reverse angle buckle and the anti-reverse plug disk to prevent the wire rope from loosening during use.

[0019] Furthermore, in the horizontal protective fence device, a pre-tightening device is arranged on the central axis. The pre-tightening device is similar to the principle of a car seat belt device. When the wire rope is pulled slowly, it is pulled out normally, and when it is suddenly stressed, it is quickly tightened, thereby ensuring the safety of the construction workers to the greatest extent.

[0020] Furthermore, in the horizontal protective fence device, a connecting ball head is provided at one end of the wire rope; the wire rope buckle connector includes a fixed sleeve and an anti-drop safety buckle with a safety shaft provided in the middle; a socket is provided on the side of the fixed sleeve; the width of the socket is smaller than the diameter of the connecting ball head; a circular entrance is provided at the upper part of the socket; the diameter of the circular entrance is larger than the diameter of the connecting ball head; a safety spring is provided in the fixed sleeve; the position of the safety spring corresponds to the circular entrance; one end of the safety spring is connected to the inner wall of the fixed sleeve, and the other end is connected to the lower part of the anti-drop safety buckle; the upper part of the anti-drop safety buckle extends out of the fixed sleeve; and the safety shaft is rotatably connected to the inner wall of the fixed sleeve. When the wire rope needs to be fixed to the wire rope buckle connector, first insert the connecting ball head of the wire rope into the fixed sleeve from the circular entrance. After the anti-drop safety buckle is squeezed by the connecting ball head, it rotates inwards with the safety shaft as the axis. After the connecting ball head passes through the circular entrance, it falls into the socket. The anti-drop safety buckle rotates outwards to seal the socket entrance, and the connecting ball head of the wire rope is fixed in the fixed sleeve. The anti-drop safety buckle can effectively prevent the accidental dropout of the wire rope and ensure construction safety. When the wire rope needs to be removed, press the upper part of the anti-drop safety buckle to make the anti-drop safety buckle rotate inwards with the safety shaft as the axis to open the socket entrance; then move the connecting ball head out of the socket and remove it from the circular entrance to complete the separation of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a horizontal protective fence device of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a clamp of a horizontal protective fence device of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a bottom connecting sleeve of a horizontal protective fence device of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a steel wire rope reel of a horizontal protective fence device of the utility model;

[0025] Figure 5 The utility model is a structural schematic diagram of a steel wire rope buckle connector of a horizontal protective fence device. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are all in very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0027] Embodiment 1:

[0028] refer to Figures 1 to 5 A horizontal protective fence device of this embodiment includes a wire rope reel 1, a steel pipe 2, a wire rope buckle connector 3, a wire rope 4, a bottom connecting sleeve 5, and a clamp 6; the wire rope reel 1 is arranged on the steel pipe 2; the wire rope buckle connector 3 is arranged on the steel pipe 2 and is arranged corresponding to the wire rope reel 1; the wire rope 4 is arranged in the wire rope reel 1; one end of the wire rope 4 is fixed in the wire rope reel 1, and the other end extends out of the wire rope reel 1; the steel pipe 2 is sleeved in the bottom connecting sleeve 5; the bottom of the bottom connecting sleeve 5 is fixedly connected to the clamp 6.

[0029] A horizontal protective fence device of the present embodiment is used by first fixing a plurality of clamps 6 on the steel beam flange 7, then connecting each steel pipe 2 to the bottom connecting sleeve 5 respectively, and finally pulling out the steel wire rope 4 in each wire rope reel 1 and fixing it to the wire rope buckle connector 3 on the adjacent steel pipe 2 to complete the installation of the horizontal protective fence device.

[0030] In the horizontal protective fence device of this embodiment, the clamp 6 and the steel pipe 2 are separate structures. When in use, it is only necessary to insert the steel pipe 2 into the bottom connecting sleeve 5. When the steel pipe 2 or the clamp 6 is damaged, it is only necessary to replace the damaged part, which is more flexible to use.

[0031] As a preferred embodiment, refer to Figure 2In the horizontal protective fence device, the clamp 6 includes an upper clamp plate 61, a lower clamp plate 62, a connecting plate 63, a first rotating shaft 64, a second rotating shaft 65, a fixing plate 66, and a fixing bolt 67; the middle part of the upper clamp plate 61 is connected to the upper end of the connecting plate 63; the middle part of the lower clamp plate 62 is rotatably connected to the lower end of the connecting plate 63 through the first rotating shaft 64; the middle part of the fixing plate 66 is rotatably connected to the end of the lower clamp plate 62 through the second rotating shaft 65; the fixing bolt 67 is screwed to the rear part of the upper clamp plate 61 and passes through the upper clamp plate 61; a movable bending plate 69 is provided at the upper end of the fixing bolt 67. When the clamp 6 is installed, first clamp the upper and lower surfaces of the steel beam flange 7 with the upper clamp plate 61 and the fixed plate 66; then, rotate the fixing bolt 67 downward through the movable bending plate 69 so that the lower end of the fixing bolt 67 supports the lower clamp plate 62, thereby causing the end of the lower clamp plate 62 to rotate around the first rotation axis 64, and drive the fixed plate 66 and the upper clamp plate 61 to clamp the steel beam flange 7 together; during the process, the fixed plate 66 can rotate around the second rotation axis 65 according to the thickness of the steel beam flange 7, so that when the clamp 6 clamps steel beam flanges 7 of different specifications, the upper clamp plate 61 and the fixed plate 66 can always fit with the steel beam flange 7.

[0032] As a preferred embodiment, refer to Figure 2 In the horizontal protective fence device, in order to prevent the fixing bolt 67 from slipping during the tightening process of the clamp 6, a nut 68 is provided at the rear of the upper clamp plate 61; the fixing bolt 67 is screwed to the upper clamp plate 61 through the nut 68.

[0033] As a preferred embodiment, refer to Figure 2 In the horizontal protective fence device, a bolt support 610 is provided on the lower clamping plate 62; the position of the bolt support 610 corresponds to the fixing bolt 67. After the fixing bolt 67 supports the lower clamping plate 62, the lower end of the fixing bolt 67 falls into the bolt support 610, and the bolt support 610 fixes the fixing bolt 67, thereby preventing the clamp 6 from loosening.

[0034] As a preferred embodiment, refer to Figure 2 In the horizontal protective fence device, in order to better fix the clamp 6, a rubber bite rack 611 is provided on the front lower surface of the upper clamp plate 61 and the upper surface of the fixing plate 66.

[0035] As a preferred embodiment, refer to Figure 3In the horizontal protective fence device, the bottom connecting sleeve 5 includes a base 51, a sleeve 52 arranged on the base 51, and a J-shaped groove 53 arranged on the side wall of the sleeve 52; a spring sheet 21 is arranged in the steel pipe 2; one end of the spring sheet 21 is fixed to the inner wall of the steel pipe 2 by a fixing nail 22, and the other end is connected to a marble 23 and applies a thrust to the marble 23; the marble 23 is arranged in the steel pipe 2 and supports the opening on the side wall of the steel pipe 2; the diameter of the opening is smaller than the diameter of the marble 23. The marble 23 is stuck in the opening on the side wall of the steel pipe 2, and part of it protrudes outside the side wall of the steel pipe 2. When the steel pipe 2 is docked with the bottom connecting sleeve 5, the marble 23 enters from the long groove of the J-shaped groove 53; when the bottom of the steel pipe 2 contacts the bottom of the sleeve 52, the marble 23 is located at the upper part of the horizontal groove of the J-shaped groove 53 and does not enter the horizontal groove; thereafter, the marble 23 is pressed and the steel pipe 2 is rotated so that the marble 23 enters the short groove of the J-shaped groove 53, and the marble 23 is reset by the spring sheet 21 to fix the steel pipe 2 and the bottom connecting sleeve 5 together.

[0036] As a preferred embodiment, refer to Figure 4In the horizontal protective fence device, the wire rope reel 1 includes a reel housing steel tube 11, a reel bottom plate 12 and a reel top plate 13 respectively arranged at the upper and lower ends of the reel housing steel tube 11, a central axis 14 arranged between the reel bottom plate 12 and the reel top plate 13, a lower vortex spring 15, an upper vortex spring 16, a non-reverse plug disc 17, a V-shaped locking assembly 18, a reset spring 19, and a non-reverse angle buckle 110; the two ends of the central axis 14 are respectively rotatably connected to the bearings arranged in the middle of the reel bottom plate 12 and the reel top plate 13; one end of the lower vortex spring 15 is connected to the upper part of the central axis 14, and the other end is connected to the reel housing steel tube 11; the upper vortex spring 16 is connected to the upper part of the central axis 14, and the other end is connected to the reel housing steel tube 11; the upper vortex spring 16 is connected to the upper part of the central axis 14, and the upper vortex spring 16 is connected to the upper part of the central axis 14. One end of the winding spring 16 is connected to the lower part of the central axis 14, and the other end is connected to the steel tube 11 of the reel housing; the anti-reverse plug disk 17 has a plurality of holes 111 along the circumferential direction; the anti-reverse plug disk 17 is sleeved on the upper end of the central axis 14; the V-shaped locking assembly 18 is arranged on the top plate 13 of the reel; one end of the anti-reverse angle buckle 110 is connected to one end of the V-shaped locking assembly 18, and the other end passes through the through hole on the top plate 13 of the reel and is inserted into the hole 111 of the anti-reverse plug disk 17; the reset spring 19 is arranged between the V-shaped locking assembly 18 and the top plate 13 of the reel; the steel wire rope 4 is wound around the central axis 14; one end of the steel wire rope 4 is fixed on the central axis 14, and the other end extends from the outlet on the steel tube 11 of the reel housing. The steel wire rope 4 is pulled and retracted through the steel wire rope reel 1. When the steel wire rope 4 needs to be pulled out, the V-shaped locking assembly 18 is pressed to lift the anti-reverse angle buckle 110 from the hole 111, and then the steel wire rope 4 is pulled out, and one end of the steel wire rope 4 is fixed to the steel wire rope buckle connector 3 of the adjacent horizontal protective fence device. Finally, the V-shaped locking assembly 18 is released to lock the steel wire rope 4, and the installation of the steel wire rope 4 of the horizontal protective fence device is completed. When the steel wire rope 4 needs to be recovered, firstly one end of the steel wire rope 4 is taken out from the steel wire rope buckle connector 3, and then the V-shaped locking assembly 18 is pressed, and the steel wire rope 4 is recovered into the steel wire rope reel 1 under the action of the rebound force of the lower spiral spring 15 and the upper spiral spring 16. The steel wire rope reel 1 can simplify the installation process of the horizontal protective fence device, and ensure that the steel wire rope 4 is in a tightened state through the cooperation of the anti-reverse angle buckle 110 and the anti-reverse plug disk 17, so as to prevent the steel wire rope 4 from being loosened during use.

[0037] As a preferred embodiment, refer to Figure 4 In the horizontal protective fence device, a pre-tightening device is provided on the central axis 14. The pre-tightening device is similar to the principle of a car seat belt device. When the steel wire rope 4 is pulled slowly, it is normally pulled out, and when it is suddenly stressed, it will be quickly tightened, thereby ensuring the safety of the construction workers to the greatest extent.

[0038] As a preferred embodiment, refer to Figure 5In the horizontal protective fence device, a connecting ball head 41 is provided at one end of the steel wire rope 4; the steel wire rope buckle connector 3 includes a fixed sleeve 31 and an anti-drop safety buckle 36 with a safety shaft 35 provided in the middle; a socket 32 ​​is provided on the side of the fixed sleeve 31; the width of the socket 32 ​​is smaller than the diameter of the connecting ball head 41; a circular entrance 33 is provided at the upper part of the socket 32; the diameter of the circular entrance 33 is larger than the diameter of the connecting ball head 41; a safety spring 34 is provided in the fixed sleeve 31; the position of the safety spring 34 corresponds to the circular entrance 33; one end of the safety spring 34 is connected to the inner wall of the fixed sleeve 31, and the other end is connected to the lower part of the anti-drop safety buckle 36; the upper part of the anti-drop safety buckle 36 extends out of the fixed sleeve 31; the safety shaft 35 is rotatably connected to the inner wall of the fixed sleeve 31. When the steel wire rope 4 needs to be fixed to the steel wire rope plug connector 3, first insert the connecting ball head 41 of the steel wire rope 4 into the fixed sleeve 31 from the circular entrance 33, and the anti-drop safety buckle 36 rotates inwardly with the safety shaft 35 as the axis after being squeezed by the connecting ball head 41. After the connecting ball head 41 passes through the circular entrance 33, it falls into the socket 32, and the anti-drop safety buckle 36 rotates outward to seal the entrance of the socket 32, and the connecting ball head 41 of the steel wire rope 4 is fixed in the fixed sleeve 31. The anti-drop safety buckle 36 can effectively prevent the steel wire rope 4 from accidentally falling out, ensuring construction safety. When the steel wire rope 4 needs to be removed, press the upper part of the anti-drop safety buckle 36, so that the anti-drop safety buckle 36 rotates inwardly with the safety shaft 35 as the axis, and the entrance of the socket 32 ​​is opened; then the connecting ball head 41 is moved out of the socket 32 ​​and removed from the circular entrance 33, and the steel wire rope 4 is separated.

[0039] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A horizontal protective fence device, characterized in that: It comprises a wire rope reel (1), a steel pipe (2), a wire rope buckle connector (3), a wire rope (4), a bottom connecting sleeve (5), and a clamp (6); The wire rope reel (1) is arranged on a steel pipe (2); The wire rope buckle connector (3) is arranged on the steel pipe (2) and is arranged corresponding to the wire rope reel (1); The steel wire rope (4) is arranged in the steel wire rope reel (1); one end of the steel wire rope (4) is fixed in the steel wire rope reel (1), and the other end extends out of the steel wire rope reel (1); The steel pipe (2) is sleeved in the bottom connecting sleeve (5); The bottom of the bottom connecting sleeve (5) is fixedly connected to the clamp (6).

2. The horizontal protective fence device according to claim 1, characterized in that: The clamp (6) comprises an upper clamping plate (61), a lower clamping plate (62), a connecting plate (63), a first rotating shaft (64), a second rotating shaft (65), a fixing plate (66), and fixing bolts (67); The middle part of the upper clamping plate (61) is connected to the upper end of the connecting plate (63); the middle part of the lower clamping plate (62) is rotatably connected to the lower end of the connecting plate (63) via a first rotating shaft (64); the middle part of the fixed plate (66) is rotatably connected to the end of the lower clamping plate (62) via a second rotating shaft (65); the fixing bolt (67) is screwed to the rear part of the upper clamping plate (61) and passes through the upper clamping plate (61); a movable bending plate (69) is provided at the upper end of the fixing bolt (67).

3. The horizontal protective fence device according to claim 2, characterized in that: A nut (68) is arranged at the rear of the upper clamping plate (61); the fixing bolt (67) is screwed to the upper clamping plate (61) via the nut (68).

4. The horizontal protective fence device according to claim 2, characterized in that: A bolt support (610) is provided on the lower clamping plate (62); the position of the bolt support (610) corresponds to the fixing bolt (67).

5. The horizontal protective fence device according to claim 2, characterized in that: A rubber bite rack (611) is provided on the front lower surface of the upper clamping plate (61) and the upper surface of the fixing plate (66).

6. The horizontal protective fence device according to claim 1, characterized in that: The bottom connecting sleeve (5) comprises a base (51), a sleeve (52) arranged on the base (51), and a J-shaped groove (53) arranged on the side wall of the sleeve (52); A spring sheet (21) is arranged inside the steel pipe (2); one end of the spring sheet (21) is fixed to the inner wall of the steel pipe (2) by a fixing nail (22), and the other end is connected to a marble (23) and applies a thrust to the marble (23); the marble (23) is arranged inside the steel pipe (2) and presses against an opening on the side wall of the steel pipe (2); the diameter of the opening is smaller than the diameter of the marble (23).

7. The horizontal protective fence device according to claim 1, characterized in that: The wire rope reel (1) comprises a reel housing steel tube (11), a reel bottom plate (12) and a reel top plate (13) respectively arranged at the upper and lower ends of the reel housing steel tube (11), a central axis (14) arranged between the reel bottom plate (12) and the reel top plate (13), a lower spiral spring (15), an upper spiral spring (16), a non-reverse plug disc (17), a V-shaped locking assembly (18), a reset spring (19), and a non-reverse bevel plug buckle (110); The two ends of the central shaft (14) are rotatably connected to bearings arranged at the middle of the winder bottom plate (12) and the winder top plate (13) respectively; One end of the lower spiral spring (15) is connected to the upper part of the middle shaft (14), and the other end is connected to the steel pipe (11) of the winder housing; One end of the upper spiral spring (16) is connected to the lower part of the middle shaft (14), and the other end is connected to the steel pipe (11) of the winder housing; The anti-return plug disc (17) is provided with a plurality of holes (111) along the circumferential direction; the anti-return plug disc (17) is sleeved on the upper end of the central shaft (14); The V-shaped locking assembly (18) is arranged on the top plate (13) of the winder; One end of the anti-return angle buckle (110) is connected to one end of the V-shaped locking assembly (18), and the other end passes through the through hole on the top plate (13) of the winder and is inserted into the hole (111) of the anti-return plug disc (17); The return spring (19) is arranged between the V-shaped locking assembly (18) and the winder top plate (13); The steel wire rope (4) is wound around the central shaft (14); one end of the steel wire rope (4) is fixed on the central shaft (14), and the other end extends out from the outlet on the steel pipe (11) of the winder housing.

8. The horizontal protective fence device according to claim 7, characterized in that: A pre-tightening device is arranged on the central shaft (14).

9. The horizontal protective fence device according to claim 1, characterized in that: A connecting ball head (41) is provided at one end of the steel wire rope (4); The wire rope buckle connector (3) comprises a fixed sleeve (31) and an anti-drop safety buckle (36) with a safety rotating shaft (35) arranged in the middle; a socket (32) is arranged on the side of the fixed sleeve (31); the width of the socket (32) is smaller than the diameter of the connecting ball head (41); a circular entrance (33) is arranged on the upper part of the socket (32); the diameter of the circular entrance (33) is larger than the diameter of the connecting ball head (41); a safety spring (34) is arranged in the fixed sleeve (31); the position of the safety spring (34) corresponds to the circular entrance (33); one end of the safety spring (34) is connected to the inner wall of the fixed sleeve (31), and the other end is connected to the lower part of the anti-drop safety buckle (36); the upper part of the anti-drop safety buckle (36) extends out of the fixed sleeve (31); the safety rotating shaft (35) is rotatably connected to the inner wall of the fixed sleeve (31).

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