Modular rail vehicle safety guard

Abstract

The application relates to a modular rail transit vehicle safety protection device, and belongs to the technical field of rail transit vehicle safety protection. The rail transit vehicle safety protection device comprises a frame body, a connecting rod slidably arranged on the frame body, and a connecting clamping plate arranged at the end of the connecting rod and used for fixing a rail vehicle support, the connecting rod is provided with an elastic plunger part used for locking with the frame body, and the frame body is provided with a plurality of spherical through grooves used for locking with the elastic plunger part. The application has the effect of improving the adaptability of the protection device in the rail vehicle frame repair operation.

Description

Technical Field

[0001] This application relates to the field of rail transit vehicle safety protection technology, and in particular to a modular rail transit vehicle safety protection device. Background Technology

[0002] Rail vehicle overhaul is a core component of ensuring the safe operation of urban rail transit systems. After removing components such as passenger compartment doors, driver's cab side doors, and connecting passageways, height differences and open spaces are created between the car door openings and end openings. Without effective protection, this can easily lead to safety accidents such as workers accidentally falling and tools and materials falling.

[0003] Currently, the most common protective measure used in the rail transit industry is the installation of temporary, fixed rigid baffles, using plywood or lightweight metal sheets as protective materials. Rail vehicles have pre-drilled threaded holes at locations corresponding to components requiring maintenance, such as car door frames and passageways, for temporary fixing. During maintenance work, the rigid baffles are detachably and temporarily fixed to the car door frame by bolts engaging with the pre-drilled threaded holes.

[0004] In order to adapt to different widths of carriage door openings, rigid baffles of different specifications need to be produced, resulting in insufficient versatility of rigid baffles. Utility Model Content

[0005] To improve the adaptability of protective devices during the maintenance of rail vehicles, this application provides a modular safety protection device for rail transit vehicles.

[0006] The modular rail transit vehicle safety protection device provided in this application adopts the following technical solution: A modular rail transit vehicle safety protection device includes a frame body, a connecting rod slidably installed on the frame body, and a connecting clamp plate disposed at the end of the connecting rod for fixing and connecting a rail vehicle bracket. The connecting rod is provided with an elastic plunger for locking with the frame body, and the frame body is provided with a plurality of spherical through grooves that lock into the elastic plunger.

[0007] By adopting the above technical solution, the frame body serves as the core support structure of the protective device. The connecting rod can slide along the frame body to adjust the protective width of the protective device. When it is necessary to adapt to different widths of car door openings, the connecting rod is pushed to disengage the elastic plunger from the current spherical through groove. After sliding to the target position, the elastic plunger relocks with the corresponding spherical through groove, thus fixing the connecting rod to the frame body. The connecting clamp is used to stably connect the device to the rail vehicle bracket, completing the installation and fixing of the protective device and improving the adaptability of the device.

[0008] Optionally, the elastic plunger component includes a plunger housing, a plunger spring, and a plunger ball head. The connecting rod has an installation groove for mounting the plunger housing, and the plunger housing has a plunger groove for arranging the plunger spring. One end of the plunger spring is fixed to the inner wall of the plunger groove, and the other end of the plunger spring is fixedly connected to the plunger ball head.

[0009] By adopting the above technical solution, when the connecting rod slides, the frame body squeezes the plunger ball head, causing the plunger ball head to compress the plunger spring and retract into the plunger groove, which facilitates the smooth sliding of the connecting rod; when it slides to the position of the spherical through groove, the plunger ball head pops out under the action of the plunger spring and embeds into the spherical through groove, forming a mechanical lock and reducing the probability of the connecting rod sliding.

[0010] Optionally, the main frame includes supporting steel pipes and reinforcing ribs, the supporting steel pipes and the reinforcing ribs forming a grid-like supporting structure, and the two ends of the reinforcing ribs are provided with spherical through grooves at intervals.

[0011] By adopting the above technical solution, the grid-like support structure is spliced ​​from the support steel pipe and the reinforcing rib pipe. Compared with the single plate structure, it has higher structural strength and deformation resistance, and can effectively resist the external force generated by tool collision or personnel leaning on it during operation. The spherical through grooves set at intervals at both ends of the reinforcing rib pipe provide multiple sliding and locking positions for the connecting rod, and the interval arrangement can ensure adjustment accuracy, so that the device can accurately adapt to the door openings of different widths.

[0012] Optionally, the connecting rod has a rotating slot for the connecting clamp to rotate, and the connecting rod is provided with a rotating shaft for the connecting clamp to be installed.

[0013] By adopting the above technical solution, the connecting clamp can rotate around the rotating shaft in the rotating slot. When there is an angular deviation between the mounting surface of the rail vehicle bracket and the frame body, rotating the connecting clamp can adjust its clamping direction, so that the connecting clamp can fit tightly with the bracket and avoid loosening due to improper angle.

[0014] Optionally, the connecting rod is provided with a fixing bolt for locking the connecting clamp plate, the connecting clamp plate is provided with an arc plate for adjusting the rotation angle, the arc plate has a plurality of fixing through holes for the fixing bolt to pass through, the outer wall of the connecting rod has a through hole corresponding to the fixing through hole and for the fixing bolt to pass through, and the inner wall of the rotating through groove has a threaded hole corresponding to the fixing through hole and locked with the fixing bolt.

[0015] By adopting the above technical solution, after adjusting the angle of the connecting clamp, the fixing bolts are passed through the through hole and the fixing through hole of the arc plate in sequence, and locked with the threaded hole on the inner wall of the rotating through groove to lock the angle of the connecting clamp. The several fixing through holes on the arc plate correspond to different rotation angles, enabling the connecting clamp to achieve multiple angle fixation positions, adapting to more diverse vehicle bracket installation scenarios. The locking fit of the fixing bolts ensures that the connecting clamp will not loosen after the angle is locked, improving the stability of the device after installation.

[0016] Optionally, the connecting clamp includes a clamp base, a fixing plate fixed to the clamp base, a movable plate slidably disposed on the clamp base, and a transmission screw rotatably mounted on the clamp base and used to drive the movable plate to slide. The clamp base has a sliding through groove for the movable plate to slide.

[0017] By adopting the above technical solution, the clamping width of the connecting plate is adjusted by the transmission screw. When the transmission screw is rotated, the movable plate slides along the sliding groove, changing the distance between the fixed plate and the movable plate, thereby adapting to rail vehicle brackets of different thicknesses. At the same time, the threaded transmission of the transmission screw has self-locking properties, so the movable plate will not slip due to external force after adjustment, ensuring stable clamping.

[0018] Optionally, the fixed plate is provided with an anti-slip pad on the side facing the movable plate.

[0019] By adopting the above technical solution, the anti-slip mat can increase the friction coefficient between the fixing plate and the rail vehicle support, effectively preventing the device from slipping due to vibration or slight external force, and improving installation stability; at the same time, the anti-slip mat can also avoid direct rigid contact between the fixing plate and the support, reduce wear on the surface of the vehicle support, and protect vehicle components.

[0020] Optionally, the connecting clamp includes a mounting base, a first clamp and a second clamp respectively disposed at both ends of the mounting base, and an adjusting bolt disposed on the first clamp for adjusting the clamping force of the connecting clamp. The first clamp has a clamping through hole for the adjusting bolt to pass through, and the second clamp has a clamping screw hole that is threadedly engaged with the adjusting bolt on the side facing the first clamp.

[0021] By adopting the above technical solution, another structural form of the connecting clamp is disclosed. After the first clamp and the second clamp are attached to the vehicle bracket, the adjusting bolt is tightened so that it is screwed into the clamping screw hole along the clamping through hole. The axial force of the bolt drives the first clamp to move closer to the second clamp, thereby achieving the clamping of the connecting clamp and the vehicle bracket.

[0022] Optionally, both the first clamping plate and the second clamping plate are provided with clamping grooves adapted to the rail vehicle bracket.

[0023] By adopting the above technical solution, when the bracket is embedded in the clamping groove, the clamping groove can increase the contact area between the clamping plate and the bracket, and improve the clamping stability; the adapted clamping groove structure can also reduce the gap between the clamping plate and the bracket, avoid shaking during operation, and further ensure the safety and reliability of the protective device.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By sliding the connecting rod and the frame body together and locking the elastic plunger in multiple positions, the width of the protective device can be flexibly adjusted. It can be adapted to different widths of carriage door openings without the need to produce special specifications, thus improving the adaptability of the maintenance protective device for rail vehicles. 2. The connecting clamp plate is designed with a rotating shaft and a rotating through groove to achieve the rotating installation of the connecting clamp plate and the connecting rod. The angle of the connecting clamp plate is locked by the arc plate and fixing bolts, so that the installation angle of the connecting clamp plate can be adjusted, allowing the device to adapt to rail vehicle brackets with different angles. 3. The connecting clamp plate rotates the transmission screw, thereby driving the movable plate and adjusting the distance between the movable plate and the fixed plate. This allows for adjustment of the clamping force of the connecting clamp plate, enabling the protective device to be fixedly connected to vehicle brackets of different widths. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view of the connecting rod in Embodiment 1 of this application.

[0027] Figure 3 This is a schematic diagram of the installation of the connecting clamp and the connecting rod in Embodiment 1 of this application.

[0028] Figure 4 This is a cross-sectional view of the connecting clamp in Embodiment 1 of this application.

[0029] Figure 5 This is a cross-sectional view of the connecting clamp in Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Main frame; 11. Supporting steel pipe; 12. Reinforcing rib pipe; 121. Spherical through groove; 2. Connecting rod; 21. Elastic plunger component; 211. Plunger housing; 2111. Plunger groove; 212. Plunger spring; 213. Plunger ball head; 22. Rotating through groove; 23. Rotating shaft; 24. Fixing bolt; 25. Through hole; 26. Threaded hole; 27. Mounting groove; 3. Connecting clamp; 31. 32. Rotating block; 33. Arc plate; 34. Fixed through hole; 35. Clamping plate base; 36. Sliding through groove; 37. Bearing seat; 38. Fixed plate; 39. Anti-slip pad; 30. Movable plate; 31. Threaded sleeve; 32. Transmission screw; 33. Mounting base; 34. First clamping plate; 35. Pressing through hole; 36. Second clamping plate; 37. Pressing screw hole; 37. Clamping groove; 37. Adjusting bolt. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a modular safety protection device for rail transit vehicles.

[0033] Example 1: Reference Figure 1 The modular rail transit vehicle safety protection device includes a frame body 1, a connecting rod 2 slidably installed on the frame body 1, and a connecting clamp 3 located at the end of the connecting rod 2 for fixing and connecting the rail vehicle bracket. The frame body 1 includes a supporting steel pipe 11 and a reinforcing rib pipe 12, both of which are hollow cylindrical structures. The supporting steel pipe 11 is arranged vertically, and the reinforcing rib pipe 12 is arranged horizontally. The supporting steel pipe 11 and the reinforcing rib pipe 12 are fixedly connected by welding to form a grid-like support structure.

[0034] The connecting rod 2 is equipped with an elastic plunger 21 for locking with the reinforcing rib tube 12. Both ends of the reinforcing rib tube 12 have evenly spaced spherical grooves 121 that engage with the elastic plunger 21 for locking. The elastic plunger 21 is fixedly installed to the connecting rod 2 by interference fit. The end of the connecting rod 2 has a mounting groove 27 for installing the elastic plunger 21.

[0035] The elastic plunger component 21 includes a plunger housing 211, a plunger spring 212, and a plunger ball head 213. The plunger housing 211 has a plunger groove 2111 for accommodating the plunger spring 212. One end of the plunger spring 212 is fixed to the inner wall of the plunger groove 2111, and the other end is fixedly connected to the plunger ball head 213. Under the elastic force of the plunger spring 212, the plunger ball head 213 pops out and embeds into the spherical through groove 121, forming a mechanical lock.

[0036] The connecting clamp 3 is rotatably mounted on the end of the connecting rod 2 away from the elastic plunger 21. The connecting rod 2 has a U-shaped rotating groove 22, and the connecting rod 2 has a rotating shaft 23 on the inner wall of the rotating groove 22 for the connecting clamp 3 to rotate. The connecting clamp 3 has a rotating block 31 that is fitted with the rotating shaft 23. The connecting clamp 3 can rotate within the rotating groove 22 through the cooperation between the rotating shaft 23 and the rotating block 31. The end of the connecting clamp 3 away from the vehicle bracket has an arc-shaped plate 32 for adjusting the rotation angle. Several circular fixing holes 321 are evenly distributed on the arc-shaped plate 32. The fixing holes 321 are circumferentially spaced around the axis of the rotating shaft 23.

[0037] The connecting rod 2 is equipped with a fixing bolt 24 for locking the connecting clamp 3. Its outer wall has a through hole 25 corresponding to the fixing through hole 321, through which the fixing bolt 24 passes. The inner wall of the rotating through groove 22 has a threaded hole 26 corresponding to the fixing through hole 321, which locks into the fixing bolt 24. After the fixing bolt 24 passes through the through hole 25 and the fixing through hole 321 in sequence, it engages with the threaded hole 26 to lock the arc-shaped plate 32, thus fixing the connecting clamp 3 to the connecting rod 2.

[0038] The connecting clamp 3 includes a clamp base 33, a fixed plate 34 fixed to the clamp base 33, a movable plate 35 slidably disposed on the clamp base 33, and a transmission screw 36 rotatably mounted on the clamp base 33 for driving the movable plate 35 to slide. The clamp base 33 and the rotating block 31 are integrally formed. The clamp base 33 is generally rectangular, and has a sliding groove 331 for the movable plate 35 to slide through. The end of the sliding groove 331 away from the fixed plate 34 has an opening through which the transmission screw 36 passes. The fixed plate 34 is fixed to the clamp base 33 by welding, and an anti-slip pad 341 is installed on the side facing the rail vehicle support. The anti-slip pad 341 is fixed to the surface of the fixed plate 34 with adhesive.

[0039] The movable plate 35 has a threaded sleeve 351 at one end near the clamping plate base 33, which is threaded to engage with the transmission screw 36. The outer contour of the threaded sleeve 351 is adapted to the sliding groove 331. By rotating the transmission screw 36, the movable plate 35 is driven to slide along the sliding groove 331. The clamping force of the connecting clamping plate 3 can be adjusted by adjusting the distance between the movable plate 35 and the fixed plate 34. A bearing seat 332 is provided at the end of the sliding groove 331 away from its opening, for the transmission screw 36 to be rotatably mounted.

[0040] The implementation principle of this application embodiment is as follows: the connecting rod 2 is inserted into the reinforcing rib tube 12, and the protruding length of the connecting rod 2 is adjusted to match the width of the carriage door opening by pushing the connecting rod 2 to slide along the reinforcing rib tube 12. During the sliding process, the plunger ball head 213 of the elastic plunger component 21 is squeezed by the inner wall of the reinforcing rib tube 12, compressing the plunger spring 212 and retracting into the plunger groove 2111. When it slides to the target position, the plunger ball head 213 pops out under the elastic force of the plunger spring 212 and embeds into the spherical through groove 121 of the reinforcing rib tube 12, thereby fixing the connecting rod 2 to the reinforcing rib tube 12.

[0041] Rotating the transmission screw 36 of the connecting clamp 3, the threaded sleeve 351 engages with the threaded screw 36, driving the movable plate 35 to slide along the sliding groove 331 toward the fixed plate 34. The clamping of the fixed plate 34 and the movable plate 35 fixes the connecting clamp 3 to the vehicle bracket. Then, rotating the connecting clamp 3 keeps the connecting rod 2 and the reinforcing rib tube 12 horizontal. Tightening the fixing bolt 24 locks the arc-shaped plate 32 of the connecting clamp 3, fixing the connecting clamp 3 onto the connecting rod 2, completing the installation of the protective device.

[0042] Example 2: Except for the clamping method of the connecting clamp 3, the structure of this example is the same as that of Example 1.

[0043] The connecting clamp 3 includes a mounting base 37, a first clamp 371 and a second clamp 372 respectively disposed at both ends of the mounting base 37, and an adjusting bolt 38 disposed on the first clamp 371 for adjusting the clamping force of the connecting clamp 3. The first clamp 371, the second clamp 372, and the mounting base 37 are integrally formed. The first clamp 371 has a clamping through hole 3711 through which the adjusting bolt 38 passes, and after passing through the clamping through hole 3711, the end of the adjusting bolt 38 abuts against the second clamp 372. At this time, the bolt head of the adjusting bolt 38 abuts against the first clamp 371. The second clamp 372 has a clamping screw hole 3721 on the side facing the first clamp 371 that is threadedly engaged with the adjusting bolt 38. The first clamping plate 371 has the ability to deform. When the adjusting bolt 38 presses the first clamping plate 371, the first clamping plate 371 deforms toward the second clamping plate 372, so that the side of the first clamping plate 371 close to the second clamping plate 372 fits against the support of the rail vehicle, thereby fixing the connecting clamping plate 3 to the rail vehicle support.

[0044] Both the first clamping plate 371 and the second clamping plate 372 are provided with clamping grooves 3722 adapted to the rail vehicle support. The clamping grooves 3722 are arc-shaped grooves. By connecting the clamping plate 3 through the clamping grooves 3722, the contact area with the vehicle support can be increased, thereby improving the clamping stability.

[0045] The implementation principle of this embodiment is as follows: When fixing the connecting clamp 3 to the rail vehicle bracket, the clamping groove 3722 is aligned with the bracket and inserted, so that the first clamp 371 and the second clamp 372 abut against the bracket. The adjusting bolt 38 is passed through the clamping through hole 3711 and threaded into the clamping screw hole 3721. The adjusting bolt 38 is tightened so that the head of the adjusting bolt 38 presses against the first clamp 371. Under the action of the clamping force, the first clamp 371 will deform toward the second clamp 372, thereby clamping the connecting clamp 3 onto the rail vehicle bracket. After fixing the connecting clamp 3 to the rail vehicle bracket, the operation in Embodiment 1 is repeated to complete the installation of the protective device.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular safety protection device for rail transit vehicles, characterized in that, The frame includes a frame body (1), a connecting rod (2) slidably mounted on the frame body (1), and a connecting clamp (3) disposed at the end of the connecting rod (2) for fixing and connecting the rail vehicle bracket. The connecting rod (2) is provided with an elastic plunger (21) for locking with the frame body (1). The frame body (1) has several spherical through grooves (121) that lock into the elastic plunger (21).

2. The modular rail transit vehicle safety protection device according to claim 1, characterized in that, The elastic plunger component (21) includes a plunger housing (211), a plunger spring (212), and a plunger ball head (213). The connecting rod (2) has an installation groove (27) for mounting the plunger housing (211). The plunger housing (211) has a plunger groove (2111) for arranging the plunger spring (212). One end of the plunger spring (212) is fixed to the inner wall of the plunger groove (2111), and the other end of the plunger spring (212) is fixedly connected to the plunger ball head (213).

3. The modular rail transit vehicle safety protection device according to claim 1, characterized in that, The main frame (1) includes a supporting steel pipe (11) and a reinforcing rib pipe (12). The supporting steel pipe (11) and the reinforcing rib pipe (12) form a grid-like supporting structure. The two ends of the reinforcing rib pipe (12) are provided with spherical through grooves (121).

4. A modular rail transit vehicle safety protection device according to claim 1, characterized in that, The connecting rod (2) has a rotating through groove (22) for the connecting clamp (3) to rotate, and the connecting rod (2) has a rotating shaft (23) for the connecting clamp (3) to be installed.

5. A modular rail transit vehicle safety protection device according to claim 4, characterized in that, The connecting rod (2) is provided with a fixing bolt (24) for locking the connecting clamp (3). The connecting clamp (3) is provided with an arc plate (32) for adjusting the rotation angle. The arc plate (32) has a plurality of fixing through holes (321) for the fixing bolt (24) to pass through. The outer wall of the connecting rod (2) has a through hole (25) corresponding to the fixing through hole (321) and for the fixing bolt (24) to pass through. The inner wall of the rotating through groove (22) has a threaded hole (26) corresponding to the fixing through hole (321) and locked in place with the fixing bolt (24).

6. A modular rail transit vehicle safety protection device according to claim 5, characterized in that, The connecting clamp (3) includes a clamp base (33), a fixing plate (34) fixed to the clamp base (33), a movable plate (35) slidably disposed on the clamp base (33), and a transmission screw (36) rotatably mounted on the clamp base (33) and used to drive the movable plate (35) to slide. The clamp base (33) is provided with a sliding through groove (331) for the movable plate (35) to slide.

7. A modular rail transit vehicle safety protection device according to claim 6, characterized in that, The fixed plate (34) is provided with an anti-slip pad (341) on the side facing the movable plate (35).

8. A modular rail transit vehicle safety protection device according to claim 5, characterized in that, The connecting clamp (3) includes a mounting base (37), a first clamp (371) and a second clamp (372) respectively disposed at both ends of the mounting base (37), and an adjusting bolt (38) disposed on the first clamp (371) for adjusting the clamping force of the connecting clamp (3). The first clamp (371) has a clamping through hole (3711) for the adjusting bolt (38) to pass through, and the second clamp (372) has a clamping screw hole (3721) on the side facing the first clamp (371) that is threadedly engaged with the adjusting bolt (38).

9. A modular rail transit vehicle safety protection device according to claim 8, characterized in that, Both the first clamping plate (371) and the second clamping plate (372) are provided with clamping grooves (3722) adapted to the rail vehicle bracket.

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