Guide rail anti-falling device for angle steel tower

Abstract

The invention relates to a guide rail anti-falling device for an angle steel tower, which comprises a plurality of guide rails, fixing foot nails connected with the guide rails, connecting fittings for connecting two adjacent guide rails, an anti-falling device and positioning pieces, the positioning pieces are mounted at one ends of the guide rails, and pneumatic adjusting assemblies are mounted at the other ends of the guide rails. A rotary driving assembly is inserted into the connecting fitting close to the pneumatic adjusting assembly, a conveyor is slidably connected to the guide rail, the conveyor is connected with the rotary driving assembly, a constant-angle exhaust assembly making contact with the side face of the guide rail is further arranged on the conveyor, and the constant-angle exhaust assembly communicates with the rotary driving assembly. The rotary driving assembly is communicated with the pneumatic adjusting assembly; the guide rail has the advantage that the guide rail is convenient to install.

Description

Technical Field

[0001] The present invention belongs to the technical field of anti - falling devices, and particularly relates to a guide rail anti - falling device for angle steel towers. Background Art

[0002] As a common power and communication tower structure, angle steel towers are widely used in power transmission lines, communication base stations, radio and television and other fields. Since angle steel towers are usually relatively high, when workers conduct inspections, repairs and other operations on the towers, there is a relatively high risk of falling. In order to ensure the personal safety of workers, a guide rail anti - falling device is installed on the angle steel tower.

[0003] In the prior art, the guide rail anti - falling device generally consists of components such as guide rails, anti - falling devices, connecting fittings, deflectors and fixed studs. During installation, the guide rail is fixed to the angle steel tower through fixed studs, and adjacent guide rails are connected through connecting fittings. However, due to the relatively high height of the angle steel tower, it is impossible to ensure that two guide rails are perpendicular to the same angle after being hoisted and installed through fixed studs, resulting in the inability to use the anti - falling device normally. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a guide rail anti - falling device for angle steel towers with convenient installation of the guide rail.

[0005] The technical solution of the present invention is as follows:

[0006] A guide rail anti - falling device for angle steel towers includes a plurality of guide rails, fixed studs connected to the guide rails, connecting fittings for connecting two adjacent guide rails, and an anti - falling device. It further includes a positioning member, the positioning member is installed at one end of the guide rail, a pneumatic adjustment component is installed at the other end of the guide rail, a rotary drive component is inserted into the connecting fitting adjacent to the pneumatic adjustment component, a conveyor is slidably connected to the guide rail, the conveyor is connected to the rotary drive component, a fixed - angle exhaust component in contact with the side of the guide rail is also provided on the conveyor, the fixed - angle exhaust component communicates with the rotary drive component, and the rotary drive component communicates with the pneumatic adjustment component;

[0007] The rotary drive component controls the expansion and contraction of the pneumatic adjustment component based on the intake and exhaust of the fixed - angle exhaust component, and the guide rail can adjust the inclination angle around the positioning member.

[0008] Further, the pneumatic adjustment component includes a plug - in fitting slidably connected to the guide rail, a hinge seat hinged to the plug - in fitting, a telescopic piston connected to the hinge seat, a telescopic barrel hermetically inserted with the telescopic piston, and a fixing plate fixed to the angle steel tower. The fixing plate is fixed to the telescopic barrel, an air - delivery ring is fixed to the outer circumference of the telescopic barrel, and a hinge end is fixed to one end of the air - delivery ring;

[0009] A circular groove is provided at the hinged part of the hinged end, and the circular groove is connected with the bottom of the telescopic barrel through a hole provided on the hinged end and a gas transmission channel on the telescopic barrel to promote the displacement of the telescopic piston;

[0010] The circular groove rotation seal is connected to the rotary drive component.

[0011] Further, the rotary drive assembly includes a cylinder, a telescopic drive assembly arranged at one end of the cylinder, an inflatable assembly arranged at the other end of the cylinder, a hinge assembly arranged at the end of the telescopic drive assembly away from the cylinder, and a drive control assembly rotatably connected to the conveyor, the cylinder is detachably connected to the drive control assembly, and the telescopic drive assembly is provided with a plug rod plugged into the connecting hardware;

[0012] A bevel gear set that is driven by the telescopic drive assembly and the inflation assembly is arranged in the cylinder, a hand wheel that is fixed coaxially with one of the bevel gears in the bevel gear set is rotatably connected to the cylinder, and an external threaded cylinder is rotatably connected to the cylinder, and the external threaded cylinder is threadedly connected to the drive control assembly;

[0013] The telescopic drive assembly is connected to the hinge assembly through the drive control assembly, and the hinge assembly rotates to seal the connected circular groove;

[0014] The inflation component is connected to the fixed-angle exhaust component through the drive control component. The drive control component controls the connection between the telescopic drive component and the hinge component based on the connection between the fixed-angle exhaust component and the outside world. The fixed-angle exhaust component is not connected to the outside world when the guide rail angle is the same as the set angle, so that the pneumatic adjustment component stops telescoping.

[0015] Furthermore, the telescopic drive assembly includes an air delivery cylinder fixed on one end of the cylinder, a threaded rod threadedly connected to the cylinder, and a plug-in column plugged into the threaded rod, wherein the plug-in column is fixed to the bevel gear set;

[0016] The gas delivery cylinder is sealed and plugged with a pressurizing piston rotatably connected to the threaded rod, and the gas delivery cylinder is provided with a gas outlet I connected to the drive control component;

[0017] The plug-in rod is fixed on the gas delivery cylinder.

[0018] Furthermore, the inflation component includes an air cylinder, a threaded rod, a plug-in column and a pressurizing piston. The air cylinder, threaded rod, plug-in column and pressurizing piston of the inflation component have the same connection relationship and position relationship as the air cylinder, threaded rod, plug-in column and pressurizing piston of the telescopic drive component, and the air cylinder of the inflation component is provided with an air outlet II connected to the drive control component.

[0019] Further, the hinge assembly includes a pressing exhaust valve, a one-way valve, a hinge rod fixed to the end of the air delivery cylinder away from the cylinder body, and a circulation circular cavity opened in the hinge rod. The hinge rod is hinged to the hinge end, and a circular hole is opened in the hinge rod and communicated with the circulation circular cavity in the circular groove;

[0020] One end of the hinge rod is provided with an air inlet communicated with the circulation circular cavity. The air inlet is communicated with the drive control assembly. The one-way valve is fixed on the hinge rod and communicated with the circulation circular cavity to enable the one-way flow of the circulation circular cavity. The pressing exhaust valve is fixed on the hinge rod and communicated with the circulation circular cavity. The gas of the drive control assembly enters the circular groove through the air inlet, the one-way valve and the pressing exhaust valve.

[0021] Further, the drive control assembly includes a positioning plate threadedly connected to the external thread cylinder, a valve body fixed in the positioning plate, a diaphragm and a control piston arranged on the valve body. The positioning plate is hinged to the fixed-angle exhaust assembly. The positioning plate is provided with a piston cavity for the control piston to be hermetically inserted. The control piston slides along the piston cavity and pushes the diaphragm to abut against the valve body. The control piston is elastically connected in the piston cavity. The valve body is respectively communicated with the air outlet I and the air inlet;

[0022] An air inlet channel and an air outlet channel are further opened on the positioning plate and communicated with the end of the piston cavity away from the valve body. The air inlet channel and the air outlet channel are respectively communicated with the air outlet II and the fixed-angle exhaust assembly.

[0023] Further, the fixed-angle exhaust assembly includes two socket joints fixed to the conveyor, a telescopic plate elastically inserted into the socket joints, an outer circular plate rotatably connected to the two telescopic plates, a contact column arranged in the outer circular plate, and an exhaust cylinder coaxially fixed to the outer circular plate. An opening is formed at the bottom of the outer circular plate. The bottom of the contact column is flat and provided with a plurality of balls contacting the guide rail. The contact column extends out of the opening. The positioning plate is hinged to the conveyor. The air outlet channel is communicated with the exhaust cylinder;

[0024] A spiral groove is formed on the inner side surface of the outer circular plate. The contact column is provided with a convex ball located in the spiral groove. The contact column is sealed when contacting the exhaust cylinder;

[0025] The telescopic plate is elastically connected with a pressing plate. The pressing plate is connected with a limiting plate slidably connected to the telescopic plate. The limiting plate can be inserted and limited with the outer circular plate. The pressing plate can press and lock on the telescopic plate.

[0026] Further, the fixed-angle exhaust assembly includes two socket connectors fixed to the conveyor, a telescopic plate elastically inserted into the socket connectors, an outer circular plate rotatably connected to the two telescopic plates, a contact column disposed inside the outer circular plate, and an exhaust cylinder coaxially fixed to the outer circular plate. An opening is formed at the bottom of the outer circular plate. The bottom of the contact column is flat and is provided with a plurality of balls contacting the guide rail. The contact column extends out from the opening. The positioning plate is hinged to the conveyor, and the air outlet channel communicates with the exhaust cylinder;

[0027] The contact column is provided with a circular groove coaxially inserted into the exhaust cylinder, and rectangular through grooves are formed on the circumferential side surfaces of the contact column and the exhaust cylinder;

[0028] The telescopic plate is elastically connected with a pressing plate. The pressing plate is connected with a limiting plate slidably connected to the telescopic plate. The limiting plate can be engaged with the outer circular plate, and the pressing plate can press and lock onto the telescopic plate.

[0029] Further, the positioning member includes a plug fitting slidably connected to the guide rail, a hinge seat hinged to the plug fitting, a threaded telescopic rod hinged to the hinge seat, and a fixing plate fixed to the threaded telescopic rod. The plug fitting of the positioning member is fixed to the guide rail by bolts.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. The present invention realizes the temporary fixation of one end of the guide rail through the positioning member, and realizes pneumatic angle adjustment through the pneumatic adjustment assembly, so that the guide rail first confirms the corresponding inclination angle, and then is fixed through the connecting fitting and the fixing foot nails, ensuring that the fixed inclination angles are the same. Through the cooperation of the fixed-angle exhaust assembly and the rotary drive assembly, when the inclination angle of the guide rail reaches the set angle, the pneumatic adjustment assembly is automatically controlled to stop rotating, thereby facilitating the inclination angle adjustment of the guide rail and the installation of the guide rail.

[0032] In summary, the present invention has the advantage that the guide rail is convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the present invention without the pneumatic adjustment assembly, the rotary drive assembly, and the fixed-angle exhaust assembly;

[0034] Figure 2 is a schematic overall structural diagram of the present invention;

[0035] Figure 3 is the present invention Figure 2 schematic structural diagram of the pneumatic adjustment assembly and the rotary drive assembly;

[0036] Figure 4 is the present invention Figure 2 schematic cross-sectional view of the pneumatic adjustment assembly;

[0037] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of part A;

[0038] Figure 6 For the present invention Figure 2 Schematic diagram of the sectional structure of the fixed-angle exhaust component;

[0039] Figure 7 For the present invention Figure 6 Schematic diagram of the sectional structure of A-A;

[0040] Figure 8 For the present invention Figure 6 Schematic diagram of the sectional structure of A-A;

[0041] Figure 9 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B.

[0042] In the figure, 1. Pneumatic adjustment component; 101. Plug-in fitting; 102. Air delivery ring; 103. Telescopic piston; 104. Fixed plate; 105. Telescopic barrel; 106. Hinge end; 2. Angle steel tower; 3. Rotary drive component; 31. Pressing exhaust valve; 32. Check valve; 33. Hanging part; 34. Air delivery cylinder; 35. Plug-in column; 36. Handwheel; 37. Inflation component; 38. Positioning plate; 381. Air outlet channel; 382. Air inlet channel; 383. Control piston; 384. Diaphragm; 385. Valve body; 39. Threaded rod; 30. Pressurizing piston; 301. Plug-in rod; 302. Air inlet; 303. Hinge rod; 4. Fall arrester; 5. Conveyor; 6. Connecting fitting; 7. Telescopic plate; 72. Plug-in seat; 73. Limiting plate; 74. Pressing plate; 75. Outer circular plate; 751. Thread groove; 752. Exhaust cylinder; 76. Contact column; 8. Guide rail; 9. Positioning part; 10. Fixed foot nail. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] As Figures 1 to 7 and Figure 9As shown in the figure, a guide rail anti-falling device for an angle steel tower includes a plurality of guide rails 8, fixed studs 10 connected to the guide rails 8, connection fittings 6 for connecting two adjacent guide rails 8, and a fall arrester 4. It further includes a positioning member 9. The positioning member 9 is installed at one end of the guide rail 8. At the other end of the guide rail 8, a pneumatic adjustment assembly 1 is installed. A rotary drive assembly 3 is inserted into the connection fitting 6 adjacent to the pneumatic adjustment assembly 1. A conveyor 5 is slidably connected to the guide rail 8. The conveyor 5 is detachably connected to the rotary drive assembly 3. The conveyor 5 is further provided with a fixed-angle exhaust assembly that contacts the side of the guide rail 8. The fixed-angle exhaust assembly communicates with the rotary drive assembly 3, and the rotary drive assembly 3 communicates with the pneumatic adjustment assembly 1;

[0045] The rotary drive assembly 3 controls the telescoping of the pneumatic adjustment assembly 1 based on the intake and exhaust of the fixed-angle exhaust assembly, and the guide rail 8 can adjust the inclination angle around the positioning member 9;

[0046] The structure of the conveyor 5 is the same as that of the fall arrester 4.

[0047] During use, the operator first fixes the first guide rail 8 to the angle steel tower 2 through the fixed studs 10. After fixing, slide the conveyor 5 onto the slide rail. Then measure the inclination angle of the sliding surface of the first guide rail 8 and set the control angle of the pneumatic adjustment assembly 1. After setting, the operator fixes the positioning member 9 to the second guide rail 8, then inserts the pneumatic adjustment assembly 1 into the second guide rail 8, and then fixes the second guide rail 8 to the angle steel tower 2 through the positioning member 9 and installs the pneumatic adjustment assembly 1 on the angle steel tower 2. After installation, connect the rotary drive assembly 3 to the conveyor 5 and make the fixed-angle exhaust assembly contact the second guide rail 8. Then control the operation of the pneumatic adjustment assembly 1 through the rotary drive assembly 3. The pneumatic adjustment assembly 1 drives the second guide rail 8 to adjust the inclination angle. When the inclination angle of the second guide rail 8 reaches the set angle, the pneumatic adjustment assembly 1 controls the rotary drive assembly 3 to stop controlling the telescoping of the pneumatic adjustment assembly 1. At this time, the inclination angle adjustment is completed, and the operator can install the corresponding fixed studs 10 and connection fittings 6. When the installation is completed, remove the positioning member 9, the pneumatic adjustment assembly 1, and the rotary drive assembly 3 and install the subsequent guide rails 8 according to the above process;

[0048] It should be noted that when initially using the positioning member 9, the length of the positioning member 9 needs to be adjusted according to the installation height of the first guide rail 8 to ensure that the two guide rails 8 can be aligned;

[0049] And there is a gap between the guide rail 8 temporarily fixed by the positioning member 9 and the pneumatic adjustment assembly 1 and the already installed guide rail 8, so that the guide rail 8 can adjust the angle. When the inclination angle adjustment is completed, make the positioning member 9 no longer fixed to the guide rail 8 and slide down or up to contact the already installed guide rail 8.

[0050] In this embodiment, the pneumatic adjustment assembly 1 includes a plug-in fitting 101 slidably connected to the guide rail 8, an articulated seat articulated to the plug-in fitting 101, a telescopic piston 103 connected to the articulated seat through a connecting rod, a telescopic barrel 105 sealed and plugged with the telescopic piston 103, and a fixed plate 104 fixed to the angle steel tower 2, the fixed plate 104 is fixed to the telescopic barrel 105, an air delivery ring 102 is fixed to the outer circumference of the telescopic barrel 105, and a hinged end 106 is fixed to one end of the air delivery ring 102;

[0051] A circular groove is provided at the hinge of the hinge end 106, and the circular groove is connected with the bottom of the telescopic barrel 105 through a hole provided on the hinge end 106 and a gas transmission channel on the telescopic barrel 105, so as to push the telescopic piston 103 to move;

[0052] The circular groove rotation seal is connected to the rotation drive assembly 3;

[0053] When in use, the air of the rotary drive assembly 3 enters the bottom of the telescopic barrel 105 through the circular groove and the air supply channel and pushes the telescopic piston 103 to move. The telescopic piston 103 pushes the guide rail 8 to adjust the inclination angle through the hinge seat and the plug-in hardware 101 to ensure the stability of the adjustment. When the inclination angle of the guide rail 8 reaches the set angle, the fixed-angle exhaust assembly controls the air of the rotary drive assembly 3 to no longer enter the circular groove. At this time, the adjustment is completed. When the guide rail 8 is fixed by the fixing foot nails 10 and the connecting hardware 6, the gas in the telescopic barrel 105 is discharged through the rotary drive assembly 3 to shrink, so as to ensure subsequent normal use.

[0054] In this embodiment, the rotary drive assembly 3 includes a cylinder, a telescopic drive assembly arranged at one end of the cylinder, an inflatable assembly 37 arranged at the other end of the cylinder, a hinge assembly arranged on the end of the telescopic drive assembly away from the cylinder, and a drive control assembly rotatably connected to the conveyor 5, the cylinder is detachably connected to the drive control assembly, and the telescopic drive assembly is provided with a plug rod 301 plugged into the connecting fitting 6;

[0055] The telescopic driving assembly is connected to the hinge assembly through the driving control assembly, and the hinge assembly rotates to seal the connecting circular groove;

[0056] The inflatable component 37 is connected to the fixed-angle exhaust component through the drive control component. The drive control component controls the connection between the telescopic drive component and the hinge component based on the connection between the fixed-angle exhaust component and the outside world. When the angle of the guide rail 8 is the same as the set angle, the fixed-angle exhaust component is not connected to the outside world, so that the pneumatic adjustment component 1 stops telescoping;

[0057] A bevel gear set that drives the telescopic drive assembly and the inflation assembly 37 is provided in the cylinder body, and a handwheel 36 that is coaxially fixed with one of the bevel gears in the bevel gear set is rotatably connected to the cylinder body. The cylinder body is rotatably connected to an externally threaded cylinder that is threadedly connected to the drive control assembly.

[0058] In use, the external thread cylinder of the operator fixes the cylinder body on the drive control component, and inserts the insertion rod 301 into the connecting fitting 6. Then the operator rotates the handwheel 36, and the handwheel 36 drives the inflation component 37 and the telescopic drive component to work. The gas pressure in the inflation component 37 increases and enters the drive control component. Since the angle of the guide rail 8 has not reached the set angle, the fixed-angle exhaust component exhausts normally. At this time, the gas in the telescopic drive component can enter the articulated component through the drive control component, and enter the circular groove through the articulated component. When the inclination angle of the guide rail 8 reaches the set angle, the fixed-angle exhaust component stops exhausting. At this time, the gas in the inflation component 37 cannot be discharged and the pressure gradually increases, so that the gas in the telescopic drive component cannot enter the articulated component through the drive control component;

[0059] It should be noted that the angle set by the fixed-angle exhaust component is smaller than the angle that the guide rail 8 needs to rotate, so that when the fixed-angle exhaust component is closed, during the process of closing the drive control component by the inflation component 37, the gas generated by the telescopic drive component can drive the pneumatic adjustment component 1 to push the guide rail 8 to reach the required rotation angle.

[0060] In this embodiment, the telescopic drive component includes an air delivery cylinder 34 fixed to one end of the cylinder body, a threaded rod 39 threadedly connected to the cylinder body, and an insertion column 35 inserted on the threaded rod 39. A hanging part 33 is arranged on the air delivery cylinder 34, and a shaft is fixed on the conveyor 5. The hanging part 33 can be hung on the shaft, and the insertion column 35 is fixed to the bevel gear set;

[0061] The air delivery cylinder 34 is hermetically inserted with a pressure piston 30 rotatably connected to the threaded rod 39, and an air outlet I communicating with the drive control component is opened on the air delivery cylinder 34;

[0062] The insertion rod 301 is fixed on the air delivery cylinder 34.

[0063] In use, the insertion column 35 is driven to rotate by the bevel gear set, and the insertion column 35 drives the threaded rod 39 to rotate and extend, so as to drive the pressure piston 30 to move and generate high-pressure gas. The gas enters the drive control component through the air outlet I.

[0064] In this embodiment, the inflation component 37 includes an air delivery cylinder 34, a threaded rod 39, an insertion column 35, and a pressure piston 30. The connection relationship and positional relationship of the air delivery cylinder 34, the threaded rod 39, the insertion column 35, and the pressure piston 30 of the inflation component 37 are the same as those of the air delivery cylinder 34, the threaded rod 39, the insertion column 35, and the pressure piston 30 of the telescopic drive component, and an air outlet II communicating with the drive control component is opened on the air delivery cylinder 34 of the inflation component 37;

[0065] During use, the drive with the bevel gear set is achieved through the insertion post 35. Under the action of the threaded rod 39 and the air delivery cylinder 34, high-pressure gas is generated and enters the drive control component from the air outlet II.

[0066] In this embodiment, the hinge assembly includes a pressing exhaust valve 31, a one-way valve 32, a hinge rod 303 fixed to one end of the air delivery cylinder 34 away from the cylinder body, and a through-flow circular cavity opened on the hinge rod 303. The hinge rod 303 is hinged to the hinge end 106, and the hinge rod 303 is provided with a circular hole located in the circular groove and communicating with the through-flow circular cavity.

[0067] One end of the hinge rod 303 is provided with an air inlet 302 communicating with the through-flow circular cavity. The air inlet 302 communicates with the drive control component. The one-way valve 32 is fixed on the hinge rod 303 and communicates with the through-flow circular cavity to enable unidirectional flow of the through-flow circular cavity. The pressing exhaust valve 31 is fixed on the hinge rod 303 and communicates with the through-flow circular cavity. The gas of the drive control component enters the circular groove through the air inlet 302, the one-way valve 32, and the pressing exhaust valve 31.

[0068] During use, the gas of the drive control component enters the through-flow circular cavity through the air inlet 302, passes through the one-way valve 32 and the pressing exhaust valve 31 and enters the circular groove. When the drive control component no longer inputs gas to the air inlet 302, the one-way valve 32 prevents gas backflow. When it is necessary to contract the pneumatic adjustment component 1, the gas can be discharged through the pressing exhaust valve 31.

[0069] Preferably, the hinge rod 303 and the air delivery cylinder 34 are connected by a detachable connection method in the prior art, such as bolts.

[0070] In this embodiment, the drive control component includes a positioning plate 38 threadedly connected to the external thread cylinder, a valve body 385 fixed inside the positioning plate 38, a diaphragm 384 provided on the valve body 385, and a control piston 383. The positioning plate 38 is hinged to the fixed-angle exhaust component. The positioning plate 38 is provided with a piston cavity for the control piston 383 to be hermetically inserted. The control piston 383 slides along the piston cavity and pushes the diaphragm 384 against the valve body 385. The control piston 383 is elastically connected to the piston cavity through a spring. The valve body 385 communicates with the air outlet I and the air inlet 302 respectively.

[0071] The positioning plate 38 is also provided with an air inlet channel 382 and an air outlet channel 381 communicating with one end of the piston cavity away from the valve body 385. The air inlet channel 382 and the air outlet channel 381 communicate with the air outlet II and the fixed-angle exhaust component respectively.

[0072] In use, the gas of the inflation assembly 37 enters the piston chamber through the air inlet passage 382 and enters the fixed-angle exhaust assembly from the air outlet passage 381. At this time, the control piston 383 drives the diaphragm 384 not to contact the valve body 385 under the action of the spring, and the gas in the telescopic drive assembly normally enters the air inlet 302. When the fixed-angle exhaust assembly stops exhausting, at this time, the inflation assembly 37 still generates high-pressure gas and injects it into the piston chamber, controlling the piston 383 to move and pushing the diaphragm 384 to contact the valve body 385, so that the gas in the telescopic drive assembly no longer enters the air inlet 302.

[0073] In this embodiment, the fixed-angle exhaust assembly includes two socket connectors 72 fixed to the conveyor 5, a telescopic plate 7 elastically inserted into the socket connector 72 through a spring and a chute, an outer circular plate 75 rotatably connected to the two telescopic plates 7, a contact column 76 arranged inside the outer circular plate 75, and an exhaust cylinder 752 coaxially fixed to the outer circular plate 75. An opening is formed at the bottom of the outer circular plate 75. The bottom of the contact column 76 is flat and is provided with a plurality of balls contacting the guide rail 8. The contact column 76 extends out from the opening. The positioning plate 38 is hinged to the conveyor 5, and the air outlet passage 381 communicates with the exhaust cylinder 752.

[0074] A thread groove 751 is formed on the inner side surface of the outer circular plate 75. The contact column 76 is provided with a convex ball located in the thread groove 751. When the contact column 76 contacts the exhaust cylinder 752, it is sealed.

[0075] The telescopic plate 7 is elastically connected with a pressing plate 74 through a spring. The pressing plate 74 is connected with a limiting plate 73 slidably connected to the telescopic plate 7 through a connecting column. The limiting plate 73 can be inserted and limited with the outer circular plate 75. The pressing plate 74 is pressed and locked to the telescopic plate 7 through a pressing lock.

[0076] In use, rotate the outer circular plate 75 according to the angle to be adjusted. After the rotation is completed, press the pressing plate 74 so that the pressing plate 74 is pressed and locked on the telescopic plate 7, and the limiting plate 73 is engaged with the pressing plate 74. At this time, the outer circular plate 75 cannot rotate. Then, make the balls on the contact column 76 fit with the side surface of the guide rail 8 under the action of the telescopic plate 7 and rotate. Under the action of the thread groove 751 and the convex ball, the contact column 76 does not contact the exhaust cylinder 752. Then, adjust the inclination angle of the guide rail 8, and the contact column 76 gradually resets and contacts the exhaust cylinder 752, so that the exhaust cylinder 752 cannot discharge gas.

[0077] It should be noted that the engagement between the outer circular plate 75 and the limiting plate 73 can be realized by the insertion method of holes and columns, or can be realized by other existing methods, so that when the limiting plate 73 limits the outer circular plate 75, it can continue to move a certain distance.

[0078] Among them, the air intake of the outer circular plate enters through the opening at the bottom of the outer circular plate.

[0079] In this embodiment, the positioning member 9 includes a socket fitting 101 slidably connected to the guide rail 8, a hinge seat hinged to the socket fitting 101, a threaded telescopic rod hinged to the hinge seat, and a fixing plate 104 fixed on the threaded telescopic rod. The socket fitting 101 of the positioning member 9 is fixed to the guide rail 8 by bolts;

[0080] During use, the length of the positioning member 9 is adjusted by adjusting the threaded telescopic rod, and it is fixed to the guide rail 8 through the socket fitting 101 and fixed to the angle steel tower 2 through the fixing plate 104, thereby ensuring fixation;

[0081] Preferably, one end of the threaded telescopic rod hinged to the hinge seat is rotatably connected through a bearing.

[0082] Embodiment 2

[0083] As shown in Figure 8 A guide rail anti-falling device for an angle steel tower is different from that in Embodiment 1 in that the contact column 76 is provided with a circular groove coaxially inserted on the exhaust cylinder 752, and rectangular through grooves are provided on the circumferential side surfaces of the contact column 76 and the exhaust cylinder 752.

[0084] During use, the exhaust is controlled through the rectangular through grooves on the contact column 76 and the exhaust cylinder 752.

[0085] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A guide rail anti-falling device for an angle steel tower, comprising a plurality of guide rails, fixed studs connected to the guide rails, connection fittings for connecting two adjacent guide rails, and a fall arrester, characterized in that: It also includes a positioning member, the positioning member is installed at one end of the guide rail, a pneumatic adjustment component is installed at the other end of the guide rail, a rotary drive component is plugged into the connecting hardware adjacent to the pneumatic adjustment component, a conveyor is slidably connected to the guide rail, the conveyor is connected to the rotary drive component, and a fixed-angle exhaust component in contact with the side of the guide rail is also provided on the conveyor, the fixed-angle exhaust component is connected to the rotary drive component, and the rotary drive component is connected to the pneumatic adjustment component; The rotary drive assembly controls the expansion and contraction of the pneumatic adjustment assembly based on the intake and exhaust of the fixed-angle exhaust assembly, and the guide rail can adjust the inclination angle around the positioning member.

2. The anti-falling device for guide rails of an angle steel tower according to claim 1, characterized in that: The pneumatic adjustment assembly includes a plug-in fitting slidably connected to the guide rail, an articulated seat hinged to the plug-in fitting, a telescopic piston connected to the articulated seat, a telescopic barrel sealably plugged with the telescopic piston, and a fixed plate fixed to the angle steel tower, the fixed plate is fixed to the telescopic barrel, an air transmission ring is fixed to the outer circumference of the telescopic barrel, and a hinged end is fixed to one end of the air transmission ring; A circular groove is provided at the hinged part of the hinged end, and the circular groove is connected with the bottom of the telescopic barrel through a hole provided on the hinged end and a gas transmission channel on the telescopic barrel to promote the displacement of the telescopic piston; The circular groove rotation seal is connected to the rotary drive component.

3. The guide rail anti-falling device for angle steel tower according to claim 2, characterized in that: The rotary drive assembly includes a cylinder, a telescopic drive assembly arranged at one end of the cylinder, an inflatable assembly arranged at the other end of the cylinder, a hinge assembly arranged at the end of the telescopic drive assembly away from the cylinder, and a drive control assembly rotatably connected to the conveyor, the cylinder is detachably connected to the drive control assembly, and the telescopic drive assembly is provided with a plug rod plugged into the connecting hardware; A bevel gear set that is driven by the telescopic drive assembly and the inflation assembly is arranged in the cylinder, a hand wheel that is fixed coaxially with one of the bevel gears in the bevel gear set is rotatably connected to the cylinder, and an external threaded cylinder is rotatably connected to the cylinder, and the external threaded cylinder is threadedly connected to the drive control assembly; The telescopic drive assembly is connected to the hinge assembly through the drive control assembly, and the hinge assembly rotates to seal the connected circular groove; The inflation component is connected to the fixed-angle exhaust component through the drive control component. The drive control component controls the connection between the telescopic drive component and the hinge component based on the connection between the fixed-angle exhaust component and the outside world. The fixed-angle exhaust component is not connected to the outside world when the guide rail angle is the same as the set angle, so that the pneumatic adjustment component stops telescoping.

4. The guide rail anti-falling device for angle steel tower according to claim 3, characterized in that: The telescopic drive assembly includes an air delivery cylinder fixed to one end of the cylinder, a threaded rod threadedly connected to the cylinder, and a plug-in column plugged into the threaded rod, wherein the plug-in column is fixed to the bevel gear set; The gas delivery cylinder is sealed and plugged with a pressurizing piston rotatably connected to the threaded rod, and the gas delivery cylinder is provided with a gas outlet I connected to the drive control component; The plug-in rod is fixed on the gas delivery cylinder.

5. The guide rail anti-falling device for angle steel tower according to claim 4, characterized in that: The inflation component includes an air cylinder, a threaded rod, a plug-in column and a pressurizing piston. The air cylinder, threaded rod, plug-in column and pressurizing piston of the inflation component have the same connection relationship and position relationship as the air cylinder, threaded rod, plug-in column and pressurizing piston of the telescopic drive component, and the air cylinder of the inflation component is provided with an air outlet II connected to the drive control component.

6. The guide rail anti-falling device for an angle steel tower according to claim 5, characterized in that: The articulated assembly includes a pressing exhaust valve, a one-way valve, an articulated rod fixed to one end of the air delivery cylinder away from the cylinder body, and a circulation circular cavity formed in the articulated rod. The articulated rod is articulated to the articulated end, and a circular hole is formed in the articulated rod and located in the circular groove and communicated with the circulation circular cavity. One end of the articulated rod is provided with an air inlet communicated with the circulation circular cavity. The air inlet is communicated with the drive control assembly. The one-way valve is fixed on the articulated rod and communicated with the circulation circular cavity to enable the one-way flow of the circulation circular cavity. The pressing exhaust valve is fixed on the articulated rod and communicated with the circulation circular cavity. The gas of the drive control assembly enters the circular groove through the air inlet, the one-way valve and the pressing exhaust valve.

7. The anti-falling device for guide rails of an angle steel tower according to claim 6, characterized in that: The drive control assembly includes a positioning plate threadedly connected to the external thread cylinder, a valve body fixed in the positioning plate, a diaphragm and a control piston arranged on the valve body. The positioning plate is articulated to the fixed-angle exhaust assembly. The positioning plate is provided with a piston cavity for the control piston to be hermetically inserted. The control piston slides along the piston cavity and pushes the diaphragm to abut against the valve body. The control piston is elastically connected in the piston cavity. The valve body is respectively communicated with an air outlet I and an air inlet. The positioning plate is further provided with an air inlet channel and an air outlet channel communicated with one end of the piston cavity away from the valve body. The air inlet channel and the air outlet channel are respectively communicated with an air outlet II and the fixed-angle exhaust assembly.

8. The guide rail anti-falling device for angle steel tower according to claim 7, characterized in that: The fixed-angle exhaust assembly includes two socket joints fixed to the conveyor, a telescopic plate elastically inserted into the socket joints, an outer circular plate rotatably connected to the two telescopic plates, a contact column arranged in the outer circular plate, and an exhaust cylinder coaxially fixed to the outer circular plate. An opening is formed at the bottom of the outer circular plate. The bottom of the contact column is flat and provided with a plurality of balls contacting the guide rail. The contact column extends out from the opening. The positioning plate is articulated to the conveyor. The air outlet channel is communicated with the exhaust cylinder. A spiral groove is formed on the inner side surface of the outer circular plate. The contact column is provided with a convex ball located in the spiral groove. The contact column is sealed when contacting the exhaust cylinder. The telescopic plate is elastically connected with a pressing plate. The pressing plate is connected with a limiting plate slidably connected to the telescopic plate. The limiting plate can be inserted and limited with the outer circular plate. The pressing plate can be pressed and locked on the telescopic plate.

9. The guide rail anti-falling device for angle steel towers according to claim 7, characterized in that: The fixed-angle exhaust assembly includes two socket joints fixed to the conveyor, a telescopic plate elastically inserted into the socket joints, an outer circular plate rotatably connected to the two telescopic plates, a contact column arranged in the outer circular plate, and an exhaust cylinder coaxially fixed to the outer circular plate. An opening is formed at the bottom of the outer circular plate. The bottom of the contact column is flat and provided with a plurality of balls contacting the guide rail. The contact column extends out from the opening. The positioning plate is articulated to the conveyor. The air outlet channel is communicated with the exhaust cylinder. The contact column is provided with a circular groove coaxially inserted on the exhaust cylinder. Rectangular through grooves are formed on the circumferential side surfaces of the contact column and the exhaust cylinder. The telescopic plate is elastically connected with a pressing plate. The pressing plate is connected with a limiting plate slidably connected to the telescopic plate. The limiting plate can be engaged with the outer circular plate. The pressing plate can be pressed and locked on the telescopic plate.

10. A guide rail anti-falling device for an angle steel tower according to claim 1, characterized in that: The positioning member includes a plug fitting slidably connected to a guide rail, a hinge seat hinged to the plug fitting, a threaded telescopic rod hinged to the hinge seat, and a fixing plate fixed to the threaded telescopic rod. The plug fitting of the positioning member is fixed to the guide rail by bolts.

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