Movable protective device for railway vehicle roof operation

Abstract

The utility model provides a railway vehicle roof operation movable protection device which comprises two safety column structures located at the two ends of a railway vehicle respectively and a safety steel cable connected between the two safety column structures, and the safety steel cable is used for hanging a safety belt of an operator. The safety column structure is connected to the rail in a sliding mode and locked with the rail through the locking mechanism, the locking mechanism is arranged at the bottom of the safety column structure, and the locking mechanism comprises two locking blocks which can be close to each other in a sliding mode so as to clamp the two sides of the rail. According to the movable type protective device for rail vehicle roof operation, the distance between the two safety column structures is changed by moving the safety column structures along the rails, so that the protective device can be suitable for roof operation of different vehicle types, and the universality of the protective device is improved; and meanwhile, two locking blocks in the locking mechanism are clamped on the two sides of the rail, so that the stability of the safety column structure is ensured, and the safety and reliability of the protection device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety protection, and particularly relates to a movable protection device for roof operation of rail vehicles. Background Technique

[0002] Roof operation of rail vehicles refers to various maintenance, repair and installation work carried out on the roofs of rail vehicles (such as trains, subways, light rails, etc.), usually including inspection, repair or replacement of roof equipment, such as pantographs, air-conditioning units, ventilation equipment, cable connectors, etc. Since roof operation involves working at heights, it is particularly important to set up safety protection devices to ensure the safety of operators.

[0003] Traditional roof operation protection devices include roof protection fences and movable platform vehicles. The roof protection fences are huge in size, inconvenient to hoist and relocate, and due to the different roof sizes of different types of rail vehicles, the universality of the roof protection fences is poor; the movable platform vehicles need to occupy the passage for a long time, affecting the passage of people and vehicles and the construction of other processes. Content of the Utility Model

[0004] The embodiment of the utility model provides a movable protection device for roof operation of rail vehicles, which can be applicable to roof operations of different vehicle types, improving the universality of the protection device; at the same time, the locking mechanism ensures the stability of the safety column structure, improving the safety and reliability of the protection device.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a movable protection device for roof operation of rail vehicles, including two safety column structures respectively located at both ends of the rail vehicle and a safety steel cable connected between the two safety column structures. The safety steel cable is used to hang the safety belts of operators. The safety column structures are slidably connected to the rails and locked to the rails through a locking mechanism. The locking mechanism is arranged at the bottom of the safety column structures and includes two locking blocks that can slide close to each other to clamp on both sides of the rails.

[0006] As another embodiment of the utility model, the safety column structure includes a base and a safety column connected above the base. The base is slidably connected to the rails. The two ends of the safety steel cable are respectively connected to the upper ends of the two safety columns in one-to-one correspondence. The base is rectangular. Four locking mechanisms are provided and are respectively connected to the four corners of the base. Two locking mechanisms arranged at intervals before and after clamp on the same rail.

[0007] As another embodiment of the present utility model, the locking mechanism further includes a driving assembly for driving the locking blocks to move horizontally. The driving assembly includes a locking screw rotatably connected to the base and a guide rod connected to the base. Both the locking screw and the guide rod extend in the horizontal direction. The two locking blocks are respectively sleeved on the outer periphery of the locking screw and are respectively arranged near both ends of the locking screw. The locking blocks are sleeved on the outer periphery of the guide rod and are slidably matched with the guide rod. The outer end of the locking screw is connected with a handwheel.

[0008] As another embodiment of the present utility model, the base is provided with mounting seats corresponding to the driving assemblies one by one and used for mounting the driving assemblies. Each mounting seat includes two mounting vertical plates respectively connected to the outer side edges of the base. Both the locking screw and the guide rod are connected between the two mounting vertical plates, and the guide rod is located above the locking screw.

[0009] As another embodiment of the present utility model, a guide block is further arranged between the two mounting vertical plates of the mounting seat. The guide block is connected to the side wall of the base, and a guide groove with an opening downward and slidably matched with the track is arranged at the lower part of the guide block.

[0010] As another embodiment of the present utility model, a copper sliding plate is connected to the groove wall of the guide groove and is used for slidingly cooperating with the track.

[0011] As another embodiment of the present utility model, a roller is rotatably connected in the guide groove. The main shaft of the roller is arranged parallel to the main shaft of the locking screw, and the roller is in rolling cooperation with the top surface of the track.

[0012] As another embodiment of the present utility model, an extension rod extending horizontally outward from the track is connected to the upper end of the safety column. A steel cable sling is connected to the outer end of the extension rod, and the end of the safety steel cable is connected to the steel cable sling.

[0013] As another embodiment of the present utility model, the safety column is detachably connected to the base, and hooks are respectively connected to the upper end of the safety column and the top surface of the base.

[0014] As another embodiment of the present utility model, the mobile protection device for roof operation of a rail vehicle further includes a controller. A trigger switch and an audible and visual alarm respectively electrically connected to the controller are connected to the base. The trigger switch is used for detecting whether the locking blocks are locked in place, and the controller is used for receiving the detection signal of the trigger switch and generating an alarm signal to be sent to the audible and visual alarm.

[0015] The beneficial effects of a movable protection device for roof operation of rail vehicles provided by the present utility model are as follows: Compared with the prior art, in the movable protection device for roof operation of rail vehicles of the present utility model, two safety column structures are respectively arranged at the front and rear ends of the rail vehicle, and the safety column structures can slide along the track. By moving the safety column structures along the track, the distance between the two safety column structures is changed, and in cooperation with the adjustment of the length of the safety steel cable, the protection device can be applied to roof operations of different vehicle types, improving the versatility of the protection device; on the other hand, the setting of the safety column structures helps to reduce the volume of the protection device, and it is convenient and fast to relocate and install without affecting the normal progress of other processes; at the same time, by clamping the two locking blocks in the locking mechanism on both sides of the track, the stability of the safety column structures is ensured, improving the safety and reliability of the protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 FIG. is a schematic diagram of the use state of a movable protection device for roof operation of rail vehicles provided by an embodiment of the present utility model;

[0018] Figure 2 FIG. is a schematic diagram of the use state of the safety column structure provided by an embodiment of the present utility model;

[0019] Figure 3 For an embodiment of the present utility model Figure 2 View A;

[0020] Figure 4 For an embodiment of the present utility model Figure 2 Schematic diagram of the structure of another embodiment of the guide block;

[0021] Figure 5 For an embodiment of the present utility model Figure 2 Schematic diagram of the structure of still another embodiment of the guide block.

[0022] Among them, the reference numerals in the figures are as follows:

[0023] 1. Safety column structure; 11. Safety upright column; 12. Base; 121. Installation vertical plate; 13. Extension rod; 14. Cable sling ring; 15. Hook; 2. Safety cable; 3. Locking mechanism; 31. Locking block; 311. Locking part; 32. Locking screw; 33. Guide rod; 34. Handwheel; 4. Guide block; 41. Guide groove; 42. Roller; 43. Long slot hole; 44. Copper sliding plate; 5. Acoustic and optical alarm; 10. Track; 20. Rail vehicle. Detailed implementation manners

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or several of such features. In the description of the present invention, the meaning of "a plurality" and "several" is two or more, unless otherwise specifically defined.

[0026] Please refer to Figures 1 to 5 , and now a mobile protection device for roof operation of a rail vehicle provided by the present utility model will be described. The mobile protection device for roof operation of the rail vehicle includes two safety column structures 1 respectively located at both ends of the rail vehicle 20 and a safety cable 2 connected between the two safety column structures 1. The safety cable 2 is used for hanging the safety belts of operating personnel. The safety column structure 1 is slidably connected to the track 10 and locked to the track 10 through a locking mechanism 3. The locking mechanism 3 is arranged at the bottom of the safety column structure 1. The locking mechanism 3 includes two locking blocks 31 that can slide close to each other to clamp on both sides of the track 10.

[0027] A movable protective device for roof operation of rail vehicles provided in this embodiment, compared with the prior art, two safety column structures 1 are respectively arranged at the front and rear ends of the rail vehicle 20, and the safety column structures 1 can slide along the track 10. By moving the safety column structures 1 along the track 10, the distance between the two safety column structures 1 can be changed, and in cooperation with the adjustment of the length of the safety steel cable 2, the protective device can be applied to the roof operation of different vehicle types, improving the versatility of the protective device; on the other hand, the setting of the safety column structures 1 helps to reduce the volume of the protective device, and it is convenient and fast to relocate and install without affecting the normal progress of other processes; at the same time, by clamping the two locking blocks 31 in the locking mechanism 3 on both sides of the track 10, the stability of the safety column structure 1 is ensured, and the safety and reliability of the protective device are improved.

[0028] As a specific embodiment of a movable protective device for roof operation of rail vehicles provided by the present utility model, refer to Figure 2 , the safety column structure 1 includes a base 12 and a safety column 11 connected above the base 12. The base 12 is slidably connected to the track 10. The two ends of the safety steel cable 2 are respectively connected to the upper ends of the two safety columns 11 in one-to-one correspondence. The base 12 is rectangular, and four locking mechanisms 3 are provided and respectively connected to the four corners of the base 12. The two locking mechanisms 3 arranged at intervals before and after are correspondingly clamped on the same track 10.

[0029] In this embodiment, the base 12 is a rectangular structure located above the two tracks 10, and the four locking mechanisms 3 are respectively arranged near the four corners of the base 12, so that each track 10 corresponds to two locking mechanisms 3 arranged front and rear, ensuring a reliable locking state of the safety column structure 1.

[0030] Specifically, the base 12 is formed by welding a plurality of rectangular tubes into a rectangular frame and then welding a bottom plate on the top of the rectangular frame to ensure the bearing strength of the base 12. The safety column 11 is made of a rectangular steel pipe with a specification of 200×200, which helps to reduce the overall weight while ensuring the strength of the safety column structure 1.

[0031] As a specific embodiment of a movable protective device for roof operation of rail vehicles provided by the present utility model, refer to Figure 2 and Figure 3 , the locking mechanism 3 further includes a driving component for driving the locking block 31 to move horizontally. The driving component includes a locking screw 32 rotatably connected to the base 12 and a guide rod 33 connected to the base 12. The locking screw 32 and the guide rod 33 both extend in the horizontal direction. The two locking blocks 31 are respectively thread sleeved on the outer periphery of the locking screw 32 and are respectively arranged near the two ends of the locking screw 32. The locking block 31 is sleeved on the outer periphery of the guide rod 33 and is slidably matched with the guide rod 33. A hand wheel 34 is connected to the outer end of the locking screw 32.

[0032] In this embodiment, the locking screw 32 is a bidirectional screw. By rotating the handwheel 34, the locking screw 32 rotates. Meanwhile, with the guiding function of the guiding rod 33, the two locking blocks 31 are urged to approach each other, so that the two locking blocks 31 respectively press against both sides of the track 10, and then the safety column structure 1 is reliably locked on the track 10.

[0033] The locking block 31 is provided with a locking portion 311 that can press against the side wall of the web of the track 10. The setting of the locking portion 311 helps to increase the pressing contact area between the locking block 31 and the track 10, and improves the reliability of clamping. Further, a rubber pad can be added to the locking portion 311 to increase the friction force when the locking block 31 abuts against the track 10, and improve the clamping stability.

[0034] As a specific implementation manner of a movable protection device for roof operation of a rail vehicle provided by the present utility model, refer to Figure 2 and Figure 3 , the base 12 is provided with mounting seats that are arranged in one-to-one correspondence with the driving components and are used for mounting the driving components. The mounting seats include two mounting vertical plates 121 respectively connected to the outer edges of the base 12. The locking screw 32 and the guiding rod 33 are both connected between the two mounting vertical plates 121, and the guiding rod 33 is located above the locking screw 32.

[0035] In this embodiment, the mounting vertical plate 121 is in an inverted "L" shape and is welded to the outer upper part of the base 12 to increase the connection strength between the locking mechanism 3 and the base 12. By arranging the locking mechanism 3 outside the base 12 through the two mounting vertical plates 121, it helps to reduce the overall height of the safety column structure 1, lower the center of gravity of the safety column structure 1, and then improve the stability of the safety column structure 1.

[0036] Specifically, both ends of the locking screw 32 are rotatably connected to the mounting vertical plate 121 through UCF bearings. Both ends of the guiding rod 33 are respectively connected to the mounting vertical plate 121 through fasteners such as bolts. The guiding rod 33 is located above the locking screw 32. The locking block 31 is in a "[" shape structure. The locking portion 311 is located at the lower part of the locking block 31. The middle part of the locking block 31 is threadedly connected to the locking screw 32, and the upper part of the locking block 31 is slidably connected to the guiding rod 33. When the locking screw 32 is rotated and the two locking blocks 31 approach each other until the two locking portions 311 respectively press against both side walls of the web of the track 10, the upper parts of the two locking blocks 31 also just fit together. The above structure helps to balance the force condition of the locking block 31 in the locked state and improve the stability of the locking mechanism 3.

[0037] Further, a reinforcing sleeve can be penetrated through the middle of the locking block 31, and the reinforcing sleeve is threadedly connected to the outer periphery of the locking screw 32, which can increase the threaded connection area between the locking block 31 and the locking screw 32 and ensure the strength of the threaded connection.

[0038] Furthermore, the locking mechanism 3 further includes a locking structure for locking the locking screw 32, such as a locking nut or a snap structure, etc., to prevent the locking screw 32 from loosening during use.

[0039] As a specific embodiment of a mobile protection device for roof operation of a rail vehicle provided by the present invention, refer to Figure 2 , a guide block 4 is further provided between the two mounting vertical plates 121 of the mounting seat. The guide block 4 is connected to the side wall of the base 12, and a guide groove 41 with an opening downward and slidably matched with the track 10 is provided at the lower part of the guide block 4.

[0040] In this embodiment, when it is necessary to move and adjust the position of the safety column structure 1, loosen the locking mechanism 3, and push the safety column structure 1 along the direction of the track 10. During this process, the guide groove 41 of the guide block 4 is slidably matched with the track 10, which can limit the lateral offset of the safety column structure 1 and ensure the smooth movement of the safety column structure 1 along the track 10. At the same time, by using four guide blocks 4 slidably matched with the track 10, the friction contact area between the base 12 and the track 10 can be reduced, thereby reducing the frictional resistance during the movement process and making the movement operation more convenient.

[0041] Specifically, first weld a backing plate on the side wall of the base 12, and then connect the guide block 4 to the backing plate through fasteners such as bolts. On the one hand, it can increase the connection strength between the guide block 4 and the base 12. On the other hand, a long slot hole 43 extending horizontally and for the bolt to pass through can be provided on the guide block 4, so as to facilitate the adjustment of the horizontal connection position of the guide block 4, and further facilitate the alignment of the front and rear two guide grooves 41 on the same track 10, ensuring that the safety column structure 1 can smoothly slide along the track 10.

[0042] As a specific embodiment of a mobile protection device for roof operation of a rail vehicle provided by the present invention, refer to Figure 5 , a copper sliding plate 44 is connected to the groove wall of the guide groove 41, and the copper sliding plate 44 is used for slidably matching with the track 10.

[0043] In this embodiment, the copper sliding plate 44 has a low coefficient of friction, which can significantly reduce the frictional resistance between the guiding block 4 and the track 10, making the movement of the safety column structure 1 on the track 10 smoother. On the other hand, the copper sliding plate 44 has high wear resistance, which can reduce the wear between the guiding block 4 and the track 10, extend the service life of the guiding block 4, and reduce the maintenance cost. Specifically, the copper sliding plate 44 can be installed on the groove wall of the guiding groove 41 by welding, riveting or bolt fixing to ensure a firm and reliable connection.

[0044] As a specific implementation of a mobile protection device for roof operation of a rail vehicle provided by the present utility model, refer to Figure 4 , a roller 42 is rotatably connected in the guiding groove 41. The main shaft of the roller 42 is arranged parallel to the main shaft of the locking screw 32, and the roller 42 is in rolling cooperation with the top surface of the track 10.

[0045] In this embodiment, the setting of the roller 42 forms a rolling cooperation between the guiding block 4 and the track 10, greatly reducing the frictional resistance and making the movement operation of the safety column structure 1 easier. At the same time, the design of the roller 42 reduces the direct contact between the guiding block 4 and the track 10, reduces the wear rate, and extends the service life of the guiding block 4 and the track 10.

[0046] As a specific implementation of a mobile protection device for roof operation of a rail vehicle provided by the present utility model, refer to Figure 1 or Figure 2 , an extension rod 13 extending horizontally outward from the track 10 is connected to the upper end of the safety column 11. A steel cable sling 14 is connected to the outer end of the extension rod 13, and the end of the safety steel cable 2 is connected to the steel cable sling 14.

[0047] In this embodiment, the safety column 11 is connected to the center position of the base 12 to keep the force balance of the base 12. On this basis, through two extension rods 13 extending to the same side of the track 10, the safety steel cable 2 is located on one side of the roof of the rail vehicle 20, avoiding the lifting areas of other equipment (air conditioner, pantograph) on the roof, and ensuring that the operating personnel can walk and operate continuously and unobstructed on the roof.

[0048] Specifically, an inclined reinforcing rod is connected between the bottom of the extension rod 13 and the safety column 11, and triangular gusset plates are respectively connected between the two side walls of the extension rod 13 and the safety column 11 to ensure the support strength of the extension rod 13.

[0049] As a specific implementation of a mobile protection device for roof operation of a rail vehicle provided by the present utility model, refer to Figure 2 , the safety column 11 and the base 12 are detachably connected, and hooks 15 are connected to the upper end of the safety column 11 and the top surface of the base 12 respectively.

[0050] In this embodiment, high-strength bolts are used to connect the safety column 11 and the base 12. Meanwhile, reinforcing rib plates are arranged at the bottom end of the safety column 11, ensuring the connection strength between the safety column 11 and the base 12 and the bearing strength of the safety column structure 1. The detachable connection between the safety column 11 and the base 12 facilitates the hoisting and installation of the safety column structure 1. At the same time, the lifting hooks 15 on the upper end of the safety column 11 and the top surface of the base 12 can be used to connect with the sling of the crane equipment, improving the convenience of relocating the safety column structure 1.

[0051] As a specific implementation manner of a mobile protection device for roof operation of a rail vehicle provided by the present utility model, refer to Figure 2 , the mobile protection device for roof operation of a rail vehicle further includes a controller. A trigger switch and an audible and visual alarm 5, which are electrically connected to the controller respectively, are connected to the base 12. The trigger switch is used to detect whether the locking block 31 is locked in place, and the controller is used to receive the detection signal of the trigger switch and generate an alarm signal to send to the audible and visual alarm 5.

[0052] In this embodiment, the trigger switch is installed on the base 12 and is arranged close to the locking block 31 (not shown in the figure) for detecting whether the locking block 31 is locked in place. The trigger switch can adopt a travel switch, a proximity switch or other types of sensors. The audible and visual alarm 5 is installed at a prominent position on the base 12 for giving an audible and visual alarm when it is detected that the locking block 31 is not locked in place. The audible and visual alarm 5 can be a combination of a buzzer and an LED lamp. By detecting the state of the locking block 31 in real time, safety accidents caused by improper locking can be prevented. When the locking block 31 is not locked in place, the audible and visual alarm 5 will immediately send an alarm signal to remind the operator to deal with it in time. Through the cooperation of the controller, the trigger switch and the audible and visual alarm 5, it can reduce the situation that the operator forgets to check the locking condition of the locking block 31 due to negligence, ensuring the safety of the operator during roof operation and improving the safety and reliability of the protection device.

[0053] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mobile protection device for roof operation of rail vehicles, characterized in that It includes two safety post structures respectively located at both ends of the rail vehicle and a safety steel cable connected between the two safety post structures. The safety steel cable is used to hang the safety belts of the operating personnel. The safety post structures are slidably connected to the rail and locked to the rail through a locking mechanism. The locking mechanism is arranged at the bottom of the safety post structures. The locking mechanism includes two locking blocks that can slide close to each other to clamp on both sides of the rail.

2. The mobile protection device for roof operation of a rail vehicle according to claim 1, wherein, The safety post structure includes a base and a safety column connected above the base. The base is slidably connected to the rail. The two ends of the safety steel cable are respectively connected to the upper ends of the two safety columns in one-to-one correspondence. The base is rectangular. Four locking mechanisms are provided and are respectively connected to the four corners of the base. Two of the locking mechanisms arranged at intervals in the front-rear direction correspondingly clamp on the same rail.

3. The mobile protection device for roof operation of a rail vehicle according to claim 2, characterized in that, The locking mechanism further includes a driving assembly for driving the horizontal movement of the locking blocks. The driving assembly includes a locking screw rod rotatably connected to the base and a guide rod connected to the base. The locking screw rod and the guide rod both extend in the horizontal direction. The two locking blocks are respectively threadedly sleeved on the outer periphery of the locking screw rod and are respectively arranged near both ends of the locking screw rod. The locking blocks are sleeved on the outer periphery of the guide rod and are slidably matched with the guide rod. A hand wheel is connected to the outer end of the locking screw rod.

4. The mobile protection device for roof operation of a rail vehicle according to claim 3, wherein, The base is provided with mounting seats corresponding to the driving assemblies one by one and used for mounting the driving assemblies. The mounting seat includes two mounting vertical plates respectively connected to the outer side edges of the base. The locking screw rod and the guide rod are both connected between the two mounting vertical plates. The guide rod is located above the locking screw rod.

5. The mobile protection device for roof operation of a rail vehicle according to claim 4, characterized in that, A guide block is further arranged between the two mounting vertical plates of the mounting seat. The guide block is connected to the side wall of the base. The lower part of the guide block is provided with a guide groove with an opening downward and slidably matched with the rail.

6. The mobile protection device for roof operation of a rail vehicle according to claim 5, characterized in that A copper sliding plate is connected to the groove wall of the guide groove. The copper sliding plate is used for sliding cooperation with the rail.

7. The mobile protective device for roof operation of a rail vehicle according to claim 5, characterized in that, A roller is rotatably connected in the guide groove. The main axis of the roller is arranged parallel to the main axis of the locking screw rod. The roller is in rolling cooperation with the top surface of the rail.

8. The mobile protection device for roof operation of a rail vehicle according to claim 2, wherein, An extension rod horizontally extending towards the outside of the rail is connected to the upper end of the safety column. A steel cable sling is connected to the outer end of the extension rod. The end of the safety steel cable is connected to the steel cable sling.

9. The mobile protection device for roof operation of a rail vehicle according to claim 2, characterized in that, The safety column and the base are detachably connected. Hooks are respectively connected to the upper end of the safety column and the top surface of the base.

10. The mobile protection device for roof operation of a rail vehicle according to claim 2, characterized in that The mobile protection device for roof operation of the rail vehicle further includes a controller. A trigger switch and an audible and visual alarm respectively electrically connected to the controller are connected to the base. The trigger switch is used to detect whether the locking blocks are locked in place. The controller is used to receive the detection signal of the trigger switch and generate an alarm signal and send it to the audible and visual alarm.

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