A uncoupling lever mounting seat, uncoupling lever mounting assembly and railway vehicle

Abstract

This invention provides a coupler uncoupling rod mounting base, an uncoupling rod mounting assembly, and a railway vehicle, relating to the field of railway vehicle coupler unlocking technology. It includes a vertical plate and a mounting plate, with one end of the mounting plate connected to the vertical plate to form a T-shaped structure. A keyhole is provided at the end of the vertical plate away from the mounting plate. The keyhole includes a rotating hole and a limiting hole arranged sequentially from top to bottom and connected to each other. The rotating hole can accommodate the uncoupling rod to rotate within it, and the limiting hole restricts the rotation of the uncoupling rod within it. A lateral groove is provided at the lower end of one side wall of the limiting hole, so that when the uncoupling rod is lowered, part of the uncoupling rod is within the lateral groove. This invention solves the problems in the prior art where the uncoupling rod and the uncoupling rod mounting base are prone to deformation when the railway vehicle enters or exits curved tracks, and the uncoupling rod has a risk of jumping upwards when the railway vehicle experiences bumps and vibrations.

Description

Technical Field

[0001] This invention belongs to the field of railway vehicle coupler unlocking technology, and more specifically, relates to a coupler uncoupling rod mounting base, an uncoupling rod mounting assembly, and a railway vehicle. Background Technology

[0002] Railway freight cars need to be assembled into trains before operation. Currently, most railway freight cars use type 13B and 17 lower-action couplers. These two types of lower-action couplers have a small connection gap, which can reduce longitudinal impact between cars. Furthermore, this type of lower-action coupler is made of grade E cast steel, resulting in high strength, sufficient for the assembly of 10,000-ton trains. The lower-action coupler is operated manually by rotating a release rod, which drives the lower locking pin to push the hook lock and hook tongue, opening the hook tongue and completing the uncoupling operation. The release rod of this type of lower-action coupler is used in conjunction with a release rod mounting base with a keyhole. However, existing release rod mounting bases and release rods have the following problems in use:

[0003] like Figure 1 As shown, the unhooking rod 6 inside the unhooking rod mounting base should normally be positioned at the bottom of the keyhole. After the flat part of the unhooking rod falls into the lower part of the keyhole of the unhooking rod mounting base, when the vehicle enters or exits a curve, the coupler will swing left and right at an angle. During the swing, the unhooking rod 6 will slide and swing left and right relative to the unhooking rod mounting base. Because the gap between the flat part of the unhooking rod 6 and the lower end of the keyhole of the unhooking rod mounting base is small, the unhooking rod may get stuck while the coupler swings left and right at an angle, causing the unhooking rod to be stretched and deformed. The deformed unhooking rod has poor or even failed hooking function, seriously affecting the normal operation of the vehicle. Since the existing unhooking rod 6 moves vertically from the non-working position to the working position in the keyhole of the unhooking rod mounting base, the assembly gap between the two needs to be controlled within 3mm. If the gap is too small, it is easy to get stuck. Increasing the gap, such as Figure 2 As shown, during operation, some unhooking rods may jump vertically upwards into the upper round hole of the keyhole due to vehicle bumps and vibrations, posing a driving safety hazard of accidentally opening the hook and causing separation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a coupler uncoupling rod mounting base, which solves the problems in existing technologies where the uncoupling rod is prone to deformation when railway vehicles enter or exit curved tracks, and the uncoupling rod may jump upwards when railway vehicles experience bumps and vibrations.

[0005] To achieve the above objectives, the present invention provides a hook release rod mounting base for a vehicle coupler, comprising:

[0006] The assembly includes a vertical plate and a mounting plate. The mounting plate is connected to one end of the vertical plate to form a T-shaped structure. A keyhole is provided at the end of the vertical plate away from the mounting plate. The keyhole includes a rotating hole and a limiting hole arranged sequentially from top to bottom and connected to each other. The rotating hole can accommodate the unhooking rod to rotate inside it. The limiting hole is used to restrict the unhooking rod to rotate inside it. A lateral groove is provided at the lower end of one side wall of the limiting hole. When the unhooking rod is in place, part of the unhooking rod is in the lateral groove.

[0007] Optionally, a ramp is provided at the lower end of the other side wall of the limiting hole. The ramp gradually thins from away from the lateral groove toward the lateral groove, and the ramp and the lateral groove form the positioning groove for the unhooking rod.

[0008] Optionally, the upper wall of the lateral groove is provided with a gradually widening bevel from bottom to top.

[0009] Optionally, the upright plate includes a fixed part and an opening and closing part, the opening and closing part being closable with the fixed part, the opening and closing part forming part of the hole wall of the rotating hole, and when the opening and closing part is opened, a notch is formed in the hole wall of the rotating hole, the notch being able to accommodate the unhooking rod passing through.

[0010] Optionally, one end of the opening / closing part is rotatably connected to the fixing part via a pivot, and the other end of the opening / closing part is connected to the fixing part via a detachable pin.

[0011] Optionally, the width of the lateral groove is 4-5 mm.

[0012] Optionally, the rotating hole is a circular hole, and the positioning groove is eccentrically arranged relative to the rotating hole.

[0013] The present invention also provides an unhooking rod installation assembly, comprising:

[0014] A hook-unhooking rod, the hook-unhooking rod comprising a round rod portion and a rectangular rod portion disposed in the middle of the round rod portion;

[0015] The aforementioned hook release rod mounting base has a rectangular rod portion that passes through the keyhole.

[0016] Optionally, when the unhooking rod is in place, part of the rectangular rod portion is located within the lateral groove.

[0017] The present invention also provides a railway vehicle including the above-described uncoupling rod mounting assembly.

[0018] This invention provides a coupler uncoupling rod mounting base, an uncoupling rod mounting assembly, and a railway vehicle. Its advantages are as follows: the upright plate of the coupler uncoupling rod mounting base is mounted on the railway vehicle via a mounting plate. The uncoupling rod passes through a keyhole on the upright plate. A rotating hole at the upper end of the keyhole accommodates the uncoupling rod's rotation within it to meet the operational requirements of coupler unlocking. A limiting hole at the lower end of the keyhole restricts the rotation of the uncoupling rod, preventing mis-locking of the coupler caused by rotation of the uncoupling rod within the limiting hole. A limiting hole is provided on the lower end of one side wall of the limiting hole. The lateral groove can accommodate part of the unhooking rod when it is in place, causing the unhooking rod to deviate to one side within the limiting hole when it is in place. The setting of the lateral groove widens the limiting hole, which originally had a small gap with the unhooking rod, and increases the gap between the two. This can prevent the unhooking rod from deforming due to the left and right swinging and pulling of the coupler when the railway vehicle enters or exits the curved cable. At the same time, the upper wall of the lateral groove will have a vertical limiting effect on the unhooking rod in the placed state, preventing the safety hazard of the unhooking rod jumping up and accidentally starting the coupler when the railway vehicle is bumpy and vibrating.

[0019] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0021] Figure 1 This diagram illustrates the engagement between the unhooking rod and the unhooking rod mounting base in the prior art when the rod is in place.

[0022] Figure 2 A schematic diagram of the prior art showing the unhooking rod jumping up into the upper circular hole of the keyhole.

[0023] Figure 3 A schematic diagram of the structure of a coupler unhooking rod mounting base according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic diagram showing the engagement of a coupler unhooking rod mounting base and the unhooking rod in place according to an embodiment of the present invention is provided.

[0025] Figure 5 A schematic diagram showing the engagement of a coupler unhooking rod mounting base and the unhooking rod when removed, according to an embodiment of the present invention.

[0026] Figure 6 A schematic diagram of the obstructed state of an unhooking rod mounting assembly according to an embodiment of the present invention when the unhooking rod jumps upward is shown.

[0027] Figure 7 A schematic diagram of an unhooking rod mounting assembly according to an embodiment of the present invention is shown in which the upward jump is obstructed when the unhooking rod moves to the left.

[0028] Figure 8 A partial structural schematic diagram of a railway vehicle according to an embodiment of the present invention is shown.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Vertical plate; 2. Mounting plate; 3. Rotating hole; 4. Limiting hole; 5. Side groove; 6. Unhooking rod; 7. Sloping section; 8. Gradually expanding bevel; 9. Opening and closing section; 10. Notch; 11. Rotating shaft; 12. Pin; 13. Washer; 14. Cotter pin; 15. Round rod section; 16. Rectangular rod section; 17. Body. Detailed Implementation

[0031] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0032] like Figure 3 As shown, the present invention provides a coupler unhooking rod mounting base, comprising:

[0033] The upright plate 1 and the mounting plate 2 are connected to one end of the upright plate 1 to form a T-shaped structure. The end of the upright plate 1 away from the mounting plate 2 is provided with a keyhole. The keyhole includes a rotating hole 3 and a limiting hole 4 arranged sequentially from top to bottom and connected to each other. The rotating hole 3 can accommodate the unhooking rod 6 to rotate inside it. The limiting hole 4 is used to restrict the unhooking rod 6 to rotate inside it. A lateral groove 5 is provided at the lower end of one side wall of the limiting hole 4. When the unhooking rod 6 is in place, part of the unhooking rod 6 is in the lateral groove 5.

[0034] Specifically, to address the problems in existing technologies where the unhooking rod 6 is prone to deformation when railway vehicles enter or exit curved tracks, and where the unhooking rod 6 may jump upwards during railway vehicle bumps and vibrations, the present invention provides a coupler unhooking rod mounting base with a vertical plate 1 mounted on the railway vehicle via a mounting plate 2. The unhooking rod 6 passes through a keyhole on the vertical plate 1. The rotation hole 3 at the upper end of the keyhole accommodates the rotation of the unhooking rod 6 within it to meet the operational requirements of coupler unlocking. The limiting hole 4 at the lower end of the keyhole restricts the rotation of the unhooking rod 6, preventing rotation of the unhooking rod 6 within the limiting hole 4 from causing damage to the coupler. The lateral groove 5, located at the lower end of one side wall of the limiting hole 4, can accommodate part of the unhooking rod 6 when it is in place. This causes the unhooking rod 6 to be biased to one side within the limiting hole 4 when it is in place. The lateral groove 5 widens the limiting hole 4, which originally had a small gap with the unhooking rod 6, and increases the gap between the two. This prevents the unhooking rod 6 from deforming due to the left and right swinging and pulling of the coupler when the railway vehicle enters or exits the curved cable. At the same time, the upper wall of the lateral groove 5 provides a vertical limiting effect on the unhooking rod 6 when it is in place, preventing the unhooking rod 6 from jumping up and causing the unhooking rod to be accidentally engaged when the railway vehicle is bumpy and vibrating.

[0035] In this embodiment, the mounting plate 2 located on one side of the upright plate 1 is similar to the mounting plate 2 on the hook rod mounting seat in the prior art. It is integrally formed and connected with the upright plate 1, and mounting holes are distributed on both sides of the upright plate 1 for mounting on the body 17 of the railway vehicle.

[0036] In this embodiment, the rotating hole 3 of the keyhole is a round hole, the limiting hole 4 is a rectangular hole connected to the lower end of the round hole, and the side groove 5 is a rectangular groove opened on one side of the rectangular hole to locally widen the rectangular hole.

[0037] Optionally, a ramp 7 is provided at the lower end of the wall of the limiting hole 4 on the other side. The ramp 7 gradually thins from away from the lateral groove 5 toward the lateral groove 5, and a groove for the unhooking rod 6 is formed between the ramp 7 and the lateral groove 5.

[0038] Specifically, the ramp 7 is located inside the corner of the lower end of the wall on the other side of the limiting hole 4. The ramp makes the bottom of the limiting hole 4 higher at the end away from the lateral groove 5 and lower at the end closer to the lateral groove 5, allowing the unlocking rod to slide down the ramp 7 into the lateral groove 5 by its own weight. Figure 4 As shown, it has reached a fully positioned state.

[0039] In this embodiment, when the unhooking rod 6 is in place, the center of the unhooking rod 6 in the placement groove forms a left-right offset with the center of the rotating hole 3. When the unhooking rod mounting seat is fully in place, there is a gap of about 7mm between it and the unhooking rod 6. When the railway vehicle is moving in and out of the curve, the left and right swing of the coupler can easily cause the unhooking rod 6 to slide left and right relative to the coupler unhooking rod 6 seat. This avoids the small gap between the existing unhooking rod mounting seat and the unhooking rod 6, which can easily cause jamming and lead to deformation or breakage of the unhooking rod 6. Meanwhile, when the unhooking rod 6 is fully in place, due to the offset between the center of the unhooking rod 6 and the center of the rotating hole 3, when the unhooking rod 6 jumps upward and hits the upper wall of the side groove 5, it is blocked, preventing it from jumping upward further. Then, under its own weight and along the slope 7, the unhooking rod 6 falls completely into the positioning groove again. During the bumpy vibration of railway vehicle operation, the unhooking rod 6 will be blocked as soon as it jumps upward automatically. This design avoids the accidental unhooking failure caused by the unhooking rod 6 jumping upward in the existing unhooking rod mounting seat. Moreover, since the unhooking rod 6 at the lower end of the keyhole is eccentric relative to the rotating hole 3, the wear limit of the unhooking rod mounting seat and the unhooking rod 6 can be relaxed, which can extend the maintenance cycle and service life of this accessory and further reduce the maintenance cost throughout the entire life cycle.

[0040] In this embodiment, the shape and size of the positioning groove match the shape and size of the unhooking rod 6 located inside it, so that the unhooking rod 6 is positioned exactly within the positioning groove.

[0041] Optionally, the upper wall of the lateral groove 5 is provided with a gradually widening bevel 8 from bottom to top.

[0042] Specifically, the bevel is opened on the upper end of the side groove 5, and gradually expands from the bottom of the side groove 5 toward the limiting hole 4. When the unhooking rod 6 moves upward into the rotating hole 3, it can provide guidance and facilitate operation.

[0043] In this embodiment, the slope angle of the gradually widening bevel 8 is set according to the actual situation, so that it has both a guiding function and a good limiting function for the unhooking rod 6.

[0044] Optionally, the upright plate 1 includes a fixed part and an opening and closing part 9. The opening and closing part 9 is connected to the fixed part in an openable and closable manner. The opening and closing part 9 forms part of the hole wall of the rotating hole 3. When the opening and closing part 9 is opened, the hole wall of the rotating hole 3 forms a notch 10, which can accommodate the unhooking rod 6 to pass through.

[0045] Specifically, the opening and closing part 9 is designed such that when it is opened, a notch 10 is formed on the wall of the rotating hole 3 for the unhooking rod 6 to pass through, thereby facilitating the removal of the unhooking rod 6 from the unhooking rod mounting base for maintenance.

[0046] The existing uncoupling rod mounting bracket requires spot welding after assembly of the mounting bolts and nuts to form a stable connection with the railway vehicle body 17. However, when the uncoupling rod 6 needs maintenance or replacement, it must be removed. The process involves first using a flame torch to burn off the spot-welded mounting bolts and nuts, then removing the uncoupling rod mounting bracket before the uncoupling rod 6 can be taken off. This disassembly is time-consuming and complex. While this maintenance operation is easily carried out in temporary or station repair workshops, it is difficult to promptly repair a faulty uncoupling rod 6 when there is no flame torch equipment or limited inspection time. In such cases, the vehicle can only operate with the fault, causing difficulties for the next stage of train formation and uncoupling. Furthermore, if the uncoupling rod 6 is deformed or faulty, it is more likely to cause the coupler to be obstructed in horizontal deflection when the vehicle passes through curves, further affecting the vehicle's curve-passing performance and posing a safety hazard when the vehicle is traveling on curved tracks. Therefore, the design of the opening and closing section 9 can solve the problem of inconvenient disassembly and timely maintenance when the uncoupling rod 6 malfunctions and affects the uncoupling function during railway vehicle operation.

[0047] Optionally, one end of the opening / closing part 9 is rotatably connected to the fixing part via a pivot 11, and the other end of the opening / closing part 9 is connected to the fixing part via a detachable pin 12.

[0048] Specifically, such as Figure 5 As shown, the opening and closing part 9 is arc-shaped. One end of it is rotatably connected to the fixing part through the pivot 11, and the other end is fitted with a pin 12. The pin 12 can be a big-headed pin with a hole. After passing through the pin hole on the fixing part, a washer 13 is placed and a cotter pin 14 is inserted for fixation. When it is necessary to remove the hook rod 6, the opening and closing part 9 is opened, and the hook rod 6 can be easily removed.

[0049] Optionally, the width of the side groove 5 is 4-5 mm.

[0050] Specifically, the width of the side groove 5 should not be too large to ensure that the position of the limiting hole 4 restricts the rotation of the unhooking rod 6, so that its rotation amplitude is less than the set value to avoid accidental unhooking. At the same time, it should not be too small. If it is too small, the above-mentioned effects of avoiding deformation of the unhooking rod 6 caused by the left and right swinging and pulling of the coupler when the railway vehicle enters or exits the curved cable and avoiding the safety hazard of accidental unhooking caused by the unhooking rod 6 jumping up when the railway vehicle bounces and vibrates will be poor.

[0051] Optionally, the rotating hole 3 is a circular hole, and the positioning groove is eccentrically set relative to the rotating hole 3.

[0052] Specifically, the positioning groove is offset to one side relative to the rotating hole 3 to avoid the deformation of the unhooking rod 6 caused by the insufficient gap between the key hole of the existing unhooking rod mounting seat and the unhooking rod 6, and to avoid the problem of the unhooking rod 6 unexpectedly jumping upward under the influence of the bumps and vibrations of the railway vehicle operation, which may bring hidden dangers to the operation safety.

[0053] like Figure 6 and Figure 7 As shown, the present invention also provides an unhooking rod mounting assembly, comprising:

[0054] The unhooking rod 6 includes a round rod portion 15 and a rectangular rod portion 16 disposed in the middle of the round rod portion 15.

[0055] The aforementioned hook release rod mounting base has a rectangular rod portion 16 that passes through a keyhole.

[0056] Specifically, the part of the unhooking rod 6 that passes through the keyhole is a rectangular rod 16, which can be restricted from rotating by the limiting hole 4. The unhooking rod 6 can only be rotated to unlock the car coupler when it is lifted into the rotating hole 3.

[0057] Optionally, when the unhooking rod 6 is in place, part of the rectangular rod portion 16 is within the lateral groove 5.

[0058] Specifically, such as Figure 6 As shown, when railway vehicles encounter bumps and vibrations during operation, the uncoupling rod 6 will be blocked by the upper wall of the lateral groove 5 as soon as it jumps upwards. This avoids the accidental uncoupling failure caused by the uncoupling rod 6 automatically jumping upwards in the existing uncoupling rod mounting seat; for example... Figure 7 As shown, when the unhooking rod 6 is blocked from jumping vertically upwards, and it tries to continue jumping to the left, it will be hindered by the frictional resistance between the unhooking rod 6 and the ramp 7 of the unhooking rod mounting base, as well as the weight of the unhooking rod 6 itself. Since the automatic jumping of the unhooking rod 6 during the driving process is only a temporary and sudden instantaneous action, there is no continuous upward force to push the unhooking rod 6 to jump continuously upwards. Therefore, the frictional resistance between the ramp 7 and the unhooking rod 6 and its own weight will limit the continuous upward jumping of the unhooking rod 6, creating a potential risk of hooking out.

[0059] like Figure 8 As shown, the present invention also provides a railway vehicle including the above-described uncoupling rod mounting assembly.

[0060] Specifically, in the aforementioned unhooking rod installation assembly, the unhooking rod mounting seat of the coupler is installed on the vehicle body 17 via the mounting plate 2. The unhooking rod 6 passes through the keyhole. When in the lowered position, the rectangular rod portion 16 of the unhooking rod 6 is engaged in the limiting hole 4, restricting its rotation and preventing accidental opening of the coupler. When unlocking is required, the unhooking rod 6 can be lifted upwards to enter the rotating hole 3, allowing it to rotate and open the coupler.

[0061] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A knuckle release lever mounting bracket of a vehicle coupler, characterized in that, The invention relates to a vehicle coupler, comprising: a vertical plate and a mounting plate connected to one end of the vertical plate to form a T-shaped structure, a keyhole is formed at the end of the vertical plate away from the mounting plate, the keyhole comprises a rotating hole and a limiting hole arranged in sequence from top to bottom and connected in communication, the rotating hole can accommodate the unhooking rod to rotate inside, the limiting hole is used to limit the rotation of the unhooking rod inside, a side groove is arranged at the lower end of the side hole wall of the limiting hole, part of the unhooking rod is located in the side groove when the unhooking rod is in position; the vertical plate comprises a fixed part and an opening and closing part, the opening and closing part is connected to the fixed part in an openable and closable manner, the opening and closing part forms part of the hole wall of the rotating hole, the hole wall of the rotating hole forms a gap when the opening and closing part is opened, and the gap can accommodate the unhooking rod to pass through.

2. A demating lever mounting for a vehicle coupling according to claim 1, characterised in that the other side hole wall of the limiting hole is provided with a slope part at the lower end, the slope part is gradually thinned from away from the side groove towards the side groove, and the slope part and the side groove form a positioning groove for the unhooking rod.

3. A demating lever mounting for a vehicle coupling according to claim 1, characterised in that the upper end groove wall of the side groove is provided with a downwardly upwardly expanding bevel.

4. A demating lever mounting for a vehicle coupling according to claim 1, characterised in that one end of the opening and closing part is rotatably connected to the fixed part through a rotating shaft, and the other end of the opening and closing part is connected to the fixed part through a detachable pin.

5. The uncoupling lever mounting of a vehicle coupling according to claim 1, characterized in that the width of the side groove is 4-5mm.

6. A demating lever mounting for a vehicle coupling according to claim 2, characterised in that the rotating hole is a circular hole, and the positioning groove is eccentrically arranged relative to the rotating hole.

7. A dehooking pole mounting assembly, characterized by, The invention relates to an unhooking rod for a vehicle coupler, comprising: a circular rod part and a rectangular rod part arranged at the middle of the circular rod part; the unhooking rod installation seat of the vehicle coupler according to any one of claims 1-6, the rectangular rod part passes through the keyhole.

8. The dehooking pole mounting assembly of claim 7, wherein, part of the rectangular rod part is located in the side groove when the unhooking rod is in position.

9. A railway vehicle characterized by the unhooking rod installation assembly according to claim 7 or 8.

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