A railway vehicle relief valve pull rope installation hanger device and railway vehicle

Abstract

The present invention provides a railway vehicle relief valve pull rope installation hanger device and a railway vehicle, which relates to the railway vehicle braking technology field. The device comprises: at least one hanger structure, the hanger structure comprises a support assembly and a hanger; at least one pull rope, one end of the pull rope is connected to the relief valve handle of the railway vehicle, the support assembly, one end of the support assembly is fixed to the side beam of the railway vehicle; a hanger, one end of the hanger is rotatably connected to the support assembly, a support hole is provided at the lower part of a side of the hanger close to the side beam, the other end of the pull rope passes through the support hole, and an anti-slip retaining ring is provided on the pull rope and between the other end and the support hole; an elastic reset member, the two ends of the elastic reset member are respectively connected to the support assembly and the hanger, and the elastic reset member can rotate the hanger to a vertical state. When the hanger is hit by external forces from the outside of the vehicle such as cargo, loaders and forklifts during loading and unloading, the hanger swing function of the device avoids the occurrence of bending and deformation of the hanger due to external force collision.

Description

Technical Field

[0001] The present invention belongs to the field of railway vehicle braking, and more particularly, relates to a railway vehicle relief valve pull rope installation hanger device and a railway vehicle. Background Art

[0002] The 120-type air control valve is a core component of the railway vehicle braking system, primarily responsible for braking and releasing the vehicle, serving as the control center of the braking system. The release valve lever is the primary operating element for manual release in the vehicle's air brake system. It is directly connected to the release valve handle of the 120-type air control valve to enable manual release of the vehicle.

[0003] The layout of the relief valve lever should not only facilitate safe operation by ground staff, but also avoid poor relief caused by blockage during operation. The layout and design of the existing relief valve lever are mainly based on the structure of the railway vehicle. It is arranged in the middle or at the end of the vehicle body structure and fixed by accessories such as the relief valve lever hanger. Figures 1 to 3 As shown, due to the limitations of the vehicle body structure, most models of railway vehicles such as general open cars, flat cars, covered cars, and some tank cars have the 120-type air control valve 26 installed on the lower side of the middle beam 24 in the middle of the vehicle body chassis through its mounting seat. The left relief valve pull rod 27 and the right relief valve pull rod 28, which are made of 10mm diameter round steel and have inconsistent lengths, are respectively connected with the relief valve handle 29 of the 120-type air control valve 26 by the third cotter pin 30. The other ends of the left and right relief valve pull rods facing the outside of the vehicle are respectively extended to the lower side beams 7 on both sides of the vehicle body chassis. In order to prevent the relief valve pull rods from falling off on the left and right sides, the relief valve pull rod handles 31 on the left and right sides are fixed. After the parts are respectively inserted into the mounting holes below the L-shaped anti-slip plate 32, the relief valve pull rod handle 31 is then annealed into a trapezoidal structure with a straight side length of 200 mm, and its interface is sealed and welded by electric welding. Special rivets 33 and special rivet rings 34 are then used to align and fix the two holes above the anti-slip plate 32 installed at the end of the relief valve pull rod handle 31 with the two mounting holes at the bottom of the relief valve pull rod hanger 36 welded on the relief valve pull rod base 35 installed on the inner side of the side beam 7, so as to facilitate the operator standing on either side of the vehicle to manually relieve the railway vehicle type 120 air control valve 26 by pushing and pulling the relief valve pull rod handle 31, thereby ensuring that the vehicle braking and relief working conditions are good.

[0004] When the existing relief valve rod hanger is used in general open cars, flat cars and other types of railway vehicles, in order to avoid the original relief valve rod handle being exposed on the outside of the side beam and being easily hit by falling objects during loading and unloading, resulting in abnormal stress on the relief valve rod hanger and the relief valve rod hanger being installed relatively far to the outside, which makes it easy to be hit during loading and causes the relief valve rod hanger to break from the welding position or be severely bent and deformed, the relief valve rod handle is changed from being exposed on the outside of the side beam to being below the side beam, and the relief valve rod hanger installation position is improved from being below the side beam to being arranged on the inside of the side beam. However, during actual loading, the improved relief valve rod hanger is still easily hit, causing the relief valve rod hanger to break from the welding position or be severely bent and deformed. At the same time, the existing relief valve rod hanger and other fixed accessories and relief valve rods will also be cracked, worn, and fall off and lost, affecting the braking relief performance and driving safety of railway vehicles. Summary of the Invention

[0005] The purpose of the present invention is to provide a railway vehicle relief valve rope installation hanger device and a railway vehicle to address the deficiencies in the existing technology, so as to solve the problem proposed in the above background technology that the relief valve rod hanger is easily impacted, causing the relief valve rod hanger to break from the welding position or severely bend and deform. At the same time, the existing relief valve rod hanger and other fixed accessories and relief valve rods will also be cracked, worn, and fall off and lost, affecting the braking relief performance and driving safety of railway vehicles.

[0006] In order to achieve the above-mentioned object, the present invention provides a railway vehicle relief valve pull rope installation hanger device, which includes:

[0007] At least one hanger structure, the hanger structure including a support assembly, a relief valve pull rope hanger and an elastic reset member;

[0008] at least one pull rope, one end of which is connected to a relief valve handle of the railway vehicle,

[0009] One end of the support assembly is fixedly connected to a side beam of the railway vehicle;

[0010] One end of the relief valve rope hanger is rotatably connected to the support assembly, a support hole is provided on the lower portion of a side of the relief valve rope hanger close to the side beam, the other end of the rope passes through the support hole, and an anti-slip ring is provided on the rope and between the other end and the support hole;

[0011] The two ends of the elastic reset member are respectively connected to the support assembly and the relief valve rope hanger, and the elastic reset member can rotate the relief valve rope hanger to a vertical state.

[0012] Preferably, the support assembly comprises:

[0013] A relief valve pull rope base, one end of which is fixedly connected to the inner web of the side beam, a first groove is provided between the two ends and the bottom of the relief valve pull rope base, the bottom of part of the first groove is fixedly connected to the lower wing of the side beam, and one end of the relief valve pull rope hanger is rotatably connected to the inner side of the other part of the first groove;

[0014] a limiting baffle, the limiting baffle being fixedly connected to the inner side of the first groove and being located between the relief valve rope hanger and the lower wing, wherein when the relief valve rope hanger is affixed to the limiting baffle, the relief valve rope hanger is in a vertical state;

[0015] At least one rib is fixedly connected to the inner web of the side beam and the top of the relief valve rope base.

[0016] Preferably, the elastic return member is a torsion spring.

[0017] Preferably, a second groove is provided between the two ends of the relief valve rope hanger and a side of the relief valve rope hanger away from the limit baffle, and a rotating assembly is provided between the first groove and the second groove;

[0018] The elastic reset member is sleeved on the rotating assembly, one end of the elastic reset member is connected to the inner top of the first groove, and the other end is connected to the inner side of the relief valve rope hanger and close to the side of the limit baffle.

[0019] Preferably, the suspension structure further comprises a guide assembly, wherein the guide assembly comprises:

[0020] Two first round pins, one end of each of the first round pins passes through the inner side of the second groove and is respectively connected to the upper part and the lower part of the center of the support hole.

[0021] Two guide sleeves, the two guide sleeves are respectively sleeved on the two first round pins, a first annular groove is provided on the circumferential wall of the guide sleeve, a gap is provided between the two first annular grooves, the distance of the gap is smaller than the diameter of the support hole, and the pull rope passes through the gap.

[0022] Preferably, the rotating assembly comprises:

[0023] a second round pin, one end of which passes through the first groove and the second groove;

[0024] Two isolation pads, both of which are sleeved on the second round pin, one of which is arranged between the inner side of the first groove and the outer side of the second groove, and the other is arranged between the inner other side of the first groove and the outer other side of the second groove.

[0025] Preferably, the other end of the pull rope is wound back into a closed second ring body, and a handle is sleeved on the second ring body.

[0026] Preferably, the diameter of the pull rope is φ3mm-φ3.5mm, and the pull rope is a stainless steel wire rope.

[0027] Preferably, it further comprises at least one bracket, which is connected to the underframe of the railway vehicle and is located between the relief valve and the relief valve rope hanger, and the bracket is also provided with a guide assembly for guiding and supporting the rope.

[0028] A railway vehicle comprising:

[0029] A 120-type air control valve and a relief valve are provided on one side of the center beam of the railway vehicle. The relief valve is provided with a relief valve handle, which is U-shaped, with the U-shaped opening of the relief valve handle facing downward. A protective sleeve is rotatably connected to the inner side of the relief valve handle, and a second annular groove is provided on the circumferential wall of the protective sleeve. One end of the pull rope is wrapped around the second annular groove to form a closed first ring body.

[0030] The railway vehicle relief valve pull rope installation hanger device;

[0031] There are two hanger structures, which are symmetrically arranged and respectively connected to the two side beams of the railway vehicle;

[0032] Two pull ropes are provided, and the lengths of the two pull ropes are different.

[0033] The present invention provides a railway vehicle relief valve rope installation hanger device, which has the following beneficial effects: one end of the relief valve rope hanger of the device is rotatably connected to the support assembly, and when the hanger is hit by external forces from the outside of the vehicle such as cargo, loaders and forklifts during loading and unloading, the relief valve rope hanger will drive the rope connected to its lower part to swing into the vehicle, so that the collision external force uses the position of the rotation connection as a fulcrum to generate an active torque for rotating the relief valve rope hanger into the vehicle, and after overcoming the passive combined torque of the self-weight torque of the relief valve rope hanger and the pre-tightening torque of the elastic reset part installed between the relief valve rope hanger and the support assembly, the relief valve rope hanger is swung into the vehicle and upwards by a certain angle until the various torques are balanced and the relief valve rope hanger is released. The seat stops swinging, and after the external force is cancelled, the relief valve rope hanger will return to its original vertical position under the combined torque of the torque generated by its own weight and the torque generated by the pre-tightening force of the elastic reset part. The swinging function of the relief valve rope hanger of this device avoids the bending and deformation of the relief valve rope hanger due to external force collision, and the relief valve rope hanger and the support assembly adopt a rotating connection instead of the welding connection of the existing railway vehicle, which also avoids the problems of open welding, cracking, breaking and welding defects at the welding points of the relief valve rod hanger of the existing vehicle, and avoids the problems of cracking, wear and falling off and loss of the relief valve rod, thereby improving the braking relief performance and driving safety of the railway vehicle.

[0034] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0036] Figure 1 The structure diagram of the relief valve pull rod and the hanger of the railway vehicle in the prior art is shown;

[0037] Figure 2 A partial enlarged structural diagram of a railway vehicle relief valve pull rod and a hanger in the prior art is shown;

[0038] Figure 3 Shown Figure 1 Schematic diagram of part of the structure in the direction of A;

[0039] Figure 4 A schematic structural diagram of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle hanger in a vertical state according to one embodiment of the present invention is shown;

[0040] Figure 5A schematic diagram of the right side structure of a hanger device for installing a pull rope of a relief valve of a railway vehicle and a hanger of a railway vehicle according to one embodiment of the present invention is shown;

[0041] Figure 6 Shown Figure 4 Schematic diagram of the structure in the middle BB direction;

[0042] Figure 7 A schematic diagram showing a structure of a hanger device for installing a pull rope of a relief valve on a railway vehicle according to an embodiment of the present invention and a hanger on a railway vehicle that rotates when impacted by an external force from the outside of the vehicle;

[0043] Figure 8 A schematic diagram of the main structure of a railway vehicle relief valve rope installation hanger device and a railway vehicle base according to one embodiment of the present invention is shown;

[0044] Figure 9 A schematic diagram of the left side structure of a railway vehicle relief valve rope installation hanger device and a railway vehicle base according to one embodiment of the present invention is shown;

[0045] Figure 10 A schematic diagram of the main structure of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle hanger according to one embodiment of the present invention is shown;

[0046] Figure 11 A schematic diagram of the right side structure of a hanger device for installing a pull rope of a relief valve of a railway vehicle and a hanger of a railway vehicle according to one embodiment of the present invention is shown;

[0047] Figure 12 A schematic diagram of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle pull rope top view structure is shown according to one embodiment of the present invention;

[0048] Figure 13 A schematic diagram of the main structure of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle pull rope according to one embodiment of the present invention is shown;

[0049] Figure 14 A schematic diagram of the right side structure of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle guide sleeve according to one embodiment of the present invention is shown;

[0050] Figure 15 A schematic diagram of a top view of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle protective cover according to an embodiment of the present invention is shown;

[0051] Figure 16A schematic diagram of the main structure of a railway vehicle relief valve pull rope installation hanger device and a railway vehicle protective cover according to one embodiment of the present invention is shown;

[0052] Figure 17 A schematic diagram of the main structure of a railway vehicle relief valve rope installation hanger device and a railway vehicle according to an embodiment of the present invention is shown.

[0053] Description of reference numerals:

[0054] 1. Rib plate; 2. Relief valve pull rope base; 3. Elastic reset member; 4. Limit baffle; 5. Relief valve pull rope hanger; 6. Pull rope; 7. Side beam; 8. First round pin; 9. Guide sleeve; 10. First flat washer; 11. First cotter pin; 12. Second round pin; 13. Isolation pad; 14. Second flat washer; 15. Second cotter pin; 16. Anti-slip retaining ring; 17. Support hole; 18. Protective cover; 19. Handle; 20. Bracket; 21. First mounting locating hole; 22. Second mounting locating hole; 23. First pressing sleeve; 24. Center beam; 25. Second pressing sleeve; 26. 120 type air control valve;

[0055] 27. Left relief valve pull rod; 28. Right relief valve pull rod; 29. ​​Relief valve handle; 30. Third cotter pin; 31. Relief valve pull rod handle; 32. Anti-slip plate; 33. Rivet; 34. Special rivet ring; 35. Relief valve pull rod base; 36. Relief rod pull rod hanger. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0057] like Figure 4-Figure 17 As shown, the present invention provides a railway vehicle relief valve rope installation hanger device, the device comprising:

[0058] At least one suspension structure, the suspension structure including a support assembly, a relief valve pull rope suspension 5 and an elastic reset member 3;

[0059] at least one pull rope 6, one end of the pull rope 6 being connected to the relief valve handle 29 of the railway vehicle, and one end of the support assembly being fixed to the side beam 7 of the railway vehicle;

[0060] One end of the relief valve rope hanger 5 is rotatably connected to the support assembly. A support hole 17 is provided on the lower part of the relief valve rope hanger 5 near the side beam 7. The other end of the rope 6 passes through the support hole 17. An anti-slip ring 16 is provided on the rope 6 and between the other end and the support hole 17.

[0061] The two ends of the elastic reset member 3 are respectively connected to the support assembly and the relief valve rope hanger 5. The elastic reset member 3 can rotate the relief valve rope hanger 5 to a vertical state.

[0062] Specifically, the relief valve rope hanger 5 is connected to the support assembly by hanging and rotating, so it must have a certain strength and rigidity. In order to reduce the welding workload and improve the rigidity, the atmospheric corrosion-resistant steel plate with a yield strength of 345MPa, a steel grade of Q345NQR2 and a thickness of 5mm-8mm is used and the whole is pressed into a U-shaped structure after being cut. This avoids the welding quality defects of the existing relief valve rope hanger 5 and the occurrence of smoke and dust gas pollution caused by welding.

[0063] In order to facilitate the installation and positioning of the pull rope 6 and to enable it to move a certain distance to the left and right sides of the vertical center of the relief valve pull rope hanger 5, so as to avoid the pull rope 6 being stuck due to large installation errors of the relief valve pull rope hanger 5, thereby affecting the braking and relief performance of the relief valve, a support hole 17 is provided on the lower part of the side of the relief valve pull rope hanger 5 close to the side beam 7 without affecting its strength and rigidity;

[0064] The anti-slip ring 16 mainly limits the length of the pull rope 6 (if the pull rope 6 is too short, the shaking force generated when the vehicle is running may cause the pull rope 6 to get stuck, which may affect the performance of the relief valve. If the pull rope 6 is too long, the shaking force generated when the vehicle is running may cause the pull rope 6 to swing too much, resulting in large wear of the pull rope 6 and its connection contact part, thereby affecting its service life. In addition, when the pull rope 6 is too long, there is a problem that it sags too long and invades the lower limit, affecting the driving safety of the vehicle, and displacement occurs when the pull rope 6 is pulled. Too large, affecting its operating performance), the anti-slip ring 16 is made of a stainless steel plate with a thickness of 2-5mm and a disc-shaped structure with a circular hole inside. In order to ensure that the anti-slip ring 16 can smoothly penetrate into the pull rope 6 and can move flexibly on the pull rope 6 and block the other end of the pull rope 6, a circular hole with a plastic coating and a reasonable gap is set in the center of the anti-slip ring 16. In addition, the anti-slip ring 16 also isolates the pull rope 6, preventing the pull rope 6 from directly swinging and contacting with the bottom of the relief valve pull rope hanger 5 as the vehicle shakes and produces wear.

[0065] When the relief valve rope hanger 5 is hit by external forces from the outside of the vehicle such as cargo, loaders and forklifts during loading and unloading, the relief valve rope hanger 5 will drive the rope 6 connected to its lower part to swing into the vehicle, so that the collision external force uses the position of the rotating connection as a fulcrum to generate an active torque for rotating the relief valve rope hanger 5 into the vehicle, overcoming the passive combined torque of the self-weight torque of the relief valve rope hanger 5 and the pre-tightening torque of the elastic reset member 3 installed between the relief valve rope hanger 5 and the support assembly, so that the relief valve rope hanger 5 swings into the vehicle and upwards at a certain angle a°, until the torques are balanced and the relief valve rope hanger 5 stops swinging. After the external force is cancelled, the relief valve rope hanger 5 stops swinging. 5 will restore the relief valve rope hanger 5 to its original vertical position under the combined torque of the torque generated by its own weight and the torque generated by the pre-tightening force of the elastic reset member 3. The swinging function of the relief valve rope hanger 5 of the device avoids the bending and deformation of the relief valve rope hanger 5 due to external force collision, and the relief valve rope hanger 5 and the support assembly adopt a rotating connection instead of the welding connection of the existing railway vehicle, which also avoids the problems of open welding, cracking, breaking and welding defects at the welding point of the relief valve rod hanger of the existing vehicle, and avoids the problems of cracking, wearing and falling off of the relief valve rod, thereby improving the braking relief performance and driving safety of the railway vehicle.

[0066] like Figure 4-Figure 9 As shown, preferably, the support assembly includes:

[0067] A relief valve pull rope base 2, one end of which is fixedly connected to the inner web of the side beam 7, a first groove is provided between the two ends and the bottom of the relief valve pull rope base 2, the bottom of part of the first groove is fixedly connected to the lower wing of the side beam 7, and one end of the relief valve pull rope hanger 5 is rotatably connected to the inner side of the other part of the first groove;

[0068] A limiting baffle 4 is fixed to the inner side of the first groove and is located between the relief valve rope hanger 5 and the lower wing. When the relief valve rope hanger 5 is attached to the limiting baffle 4, the relief valve rope hanger 5 is in a vertical state;

[0069] At least one rib plate 1, the rib plate 1 being fixed to the inner web of the side beam 7 and the top of the relief valve rope base 2;

[0070] The corner end of the relief valve pull rope base 2 facing the arc between the web and the lower wing is set to be chamfered.

[0071] Specifically, the relief valve rope base 2 is an important component of the support assembly. It is made of atmospheric corrosion-resistant steel plate with a yield strength of 345MPa, a steel grade Q345NQR2, and a thickness of 5mm-8mm, which is bent or pressed into a U-shaped structure with a certain height, width and length. The relief valve rope base 2 is welded with the inner web and lower wing of the side beam 7 to form a box-type structure with sufficient strength and rigidity to ensure the installation needs of the relief valve rope hanger 5. It mainly plays the role of fixing, installing and supporting the relief valve rope hanger 5.

[0072] In order to avoid interference with the arc between the cold-bent web and the lower wing, the corner end of the relief valve pull rope base 2 facing the arc between the web and the lower wing is set to be chamfered;

[0073] The limit baffle 4 is made of steel plate or steel section and is arranged on the inner side of the first groove and is located between the relief valve rope hanger 5 and the lower wing. It mainly plays the role of preventing the relief valve rope hanger 5 from swinging towards the inside of the vehicle by a certain angle due to the impact of external forces such as cargo and loader during loading and unloading of cargo. When the external force is cancelled, it returns to its initial vertical state under the combined action of its own weight and the elastic reset member 3, thereby limiting the relief valve rope hanger 5 from further rotating toward the outside of the vehicle to avoid affecting the braking and relief performance of the relief valve. In addition, the limit baffle 4 can also enhance the strength and rigidity of the relief valve rope base 2.

[0074] The ribs 1 are welded to the top and web of the relief valve pull rope base 2 , and mainly serve to enhance the strength and rigidity of the relief valve pull rope base 2 .

[0075] like Figure 4 and Figure 5 As shown, preferably, the elastic reset member 3 is a torsion spring;

[0076] A second groove is provided between the two ends of the relief valve rope hanger 5 and the side of the relief valve rope hanger 5 away from the limit baffle 4, and a rotating component is provided between the first groove and the second groove;

[0077] The elastic reset member 3 is sleeved on the rotating assembly, one end of the elastic reset member 3 is connected to the inner top of the first groove, and the other end is connected to the inner side of the relief valve rope hanger 5 and close to the side of the limit baffle 4.

[0078] like Figure 4 、 Figure 5 as well as Figures 8-11 As shown, preferably, the rotating assembly includes:

[0079] a second round pin 12 and a second cotter pin 15, one end of the second round pin 12 passes through the first groove and the second groove and is sleeved with a second flat washer 14, one end of the second round pin 12 is provided with a second cotter pin socket, the second cotter pin 15 is inserted into the second cotter pin socket, and the other end of the second round pin 12 is provided with a protruding second truncated cone head;

[0080] Two isolation pads 13, both of which are sleeved on the second round pin 12, wherein one of the isolation pads 13 is arranged between the inner side of the first groove and the outer side of the second groove, and the other isolation pad 13 is arranged between the other inner side of the first groove and the other outer side of the second groove.

[0081] Specifically, the sum of the width between the two sides of the outside of the second groove and the thickness of the isolation pad 13 on each side must be smaller than the width between the two sides of the inside of the second groove, and a reasonable gap must be retained between them. This can not only ensure the flexibility of the relief valve rope hanger 5 and the relief valve rope base 2 to rotate using the second round pin 12, but also ensure that the relief valve rope hanger 5 will not move too much along the axial center line of the second round pin 12, so as to avoid accelerating the wear of the rotation position between the first groove and the second groove and the second round pin 12, affecting the service life and the left and right stability of the relief valve rope hanger 5.

[0082] like Figure 9-11 As shown, preferably, a first mounting positioning hole 21 is provided at the inner top of the first groove and on one side of the first groove and between the second round pin 12 and one end of the relief valve pull rope base 2. The first mounting positioning hole can be a blind hole or a through hole, and one end of the elastic reset member 3 is connected to the first mounting positioning hole 21;

[0083] A second mounting positioning hole 21 is provided on the inner side of the relief valve rope hanger 5 and close to the side of the limit baffle 4. At the same time, the second mounting positioning hole 21 is biased toward the other side of the first groove, and the other end of the elastic reset member 3 is connected to the second mounting positioning hole 21.

[0084] Preferably, the connection between the end of the relief valve pull rope base 2 facing the inside of the vehicle and the bottom of the relief valve pull rope base 2 is rounded;

[0085] Specifically, in order to improve the level of humanization and avoid the phenomenon of sharp corners hurting relevant personnel.

[0086] like Figure 4 、 Figure 5 、 Figure 6 、 Figure 10 、 Figure 11 and Figure 14 As shown, preferably, the suspension structure further includes a guide assembly, and the guide assembly includes:

[0087] Two first round pins 8, one end of each of the first round pins 8 passes through the inner side of the second groove and is respectively connected to the upper and lower parts of the center of the support hole 17, one end of the first round pin 8 is sleeved with a first flat washer 10, one end of the first round pin 8 is provided with a first cotter pin socket, the first cotter pin socket is inserted with a first cotter pin 11, and the other end of the first round pin 8 is provided with a protruding second frustum head;

[0088] Two guide sleeves 9, the two guide sleeves 9 are respectively sleeved on the two first round pins 8, the circumferential wall of the guide sleeve 9 is provided with a first annular groove, a gap is provided between the two first annular grooves, the distance of the gap is smaller than the diameter of the support hole 17, and the pull rope 6 passes through the gap;

[0089] The side walls of the first annular groove are provided with inclined surfaces for transition;

[0090] Specifically, the pull rope 6 passes through the gap between the two first annular grooves, which can further accurately position and support the pull rope 6 and prevent the pull rope 6 from hitting the peripheral edges of the support hole 17 and causing wear;

[0091] The transition conical surface not only serves to avoid stress concentration on the guide sleeve 9, but also serves to guide the draw rope 6 and prevent the draw rope 6 from getting stuck.

[0092] The guide sleeve 9 is made of wear-resistant nylon and has the characteristics of good wear resistance, long service life, low manufacturing cost and easy replacement.

[0093] like Figure 12 and Figure 13 As shown, preferably, the other end of the pull rope 6 is wound back into a closed second ring body, and a handle 19 is sleeved on the second ring body;

[0094] It also includes a first pressing sleeve 23, which is replaced by a double-channel 8-shaped aluminum sleeve or a stainless steel pipe. The other end of the pull rope 6 passes through one of the channels of the first pressing sleeve 23, then wraps around and passes through the other channel. Finally, a special tool such as a clamp is used to clamp or flatten the first pressing sleeve 23, so that the other end of the pull rope 6 is connected to the first pressing sleeve 23 as an integrated structure.

[0095] Specifically, in order to reduce its own weight and extend its service life, the handle 19 is made of a stainless steel thin-walled steel pipe with a diameter of φ10mm and a wall thickness of 1mm, and is rounded at both ends to avoid cutting the pull rope 6;

[0096] Since the pull rope 6 can be bent by its own flexibility in the free state, it can stay within the side beam 7 in the free state and will not be hit by the unloaded cargo. The length of the relief valve pull rope base 2 can be shortened by a certain distance compared to the base length of the existing vehicle. Reducing the length of the relief valve pull rope base 2 is beneficial to improving its stress condition toward the inner end of the vehicle.

[0097] Preferably, the diameter of the pull rope 6 is φ3mm-φ3.5mm, and the pull rope 6 is a stainless steel wire rope.

[0098] Specifically, the pull rope 6 is made of a stainless steel wire rope with a diameter of φ3mm-φ3.5mm, which has strong corrosion resistance, high tensile strength, good fatigue resistance and long service life. It can also be made of a plastic-coated unrepaired steel wire rope with a plastic coating layer made of nylon or the like.

[0099] like Figure 17 As shown, preferably, it also includes at least one bracket 20, which is connected to the chassis of the railway vehicle and is located between the relief valve and the relief valve rope hanger 5. The bracket 20 is also provided with a guide component for guiding and supporting the rope 6.

[0100] Specifically, the bracket 20 can better support and position the pull rope 6, preventing the pull rope between the relief valve pull rope hanger 5 and the relief valve handle 29 from hitting adjacent parts due to excessive shaking of the vehicle and causing unnecessary wear.

[0101] like Figure 12 、 Figure 13 、 Figure 15 、 Figure 16 and Figure 17 As shown, a railway vehicle comprises:

[0102] A 120-type air control valve 26 and a relief valve are provided on one side of the center beam 24 of the railway vehicle. A relief valve handle 29 is provided on the relief valve. The relief valve handle 29 is U-shaped, with the U-shaped opening of the relief valve handle 29 facing downward. The inner side of the relief valve handle 29 is rotatably connected to a protective sleeve 18. A second annular groove is provided on the circumferential wall of the protective sleeve 18. One end of the pull rope 6 is wrapped around the second annular groove to form a closed first ring body.

[0103] A third cotter pin 30, one end of which passes through the relief valve handle 29, and the protective sleeve 18 is sleeved on the third cotter pin 30;

[0104] The second pressing sleeve 25 is replaced by a double-channel 8-shaped aluminum sleeve or a stainless steel tube. One end of the pull rope passes through one of the channels of the second pressing sleeve 25, then wraps around and passes through the other channel. Finally, a special tool such as a clamp is used to clamp or flatten the second pressing sleeve 25, so that one end of the pull rope 6 is connected to the second pressing sleeve 25 as an integrated structure.

[0105] The railway vehicle relief valve pull rope installation hanger device;

[0106] The relief valve rope hanger 5 is provided with two structures, and the two relief valve rope hangers 5 are symmetrically arranged and respectively connected to the two side beams 7 of the railway vehicle;

[0107] Two pull ropes 6 are provided, and the lengths of the two pull ropes 6 are different.

[0108] In summary, the present invention provides a railway vehicle relief valve rope installation hanger device. When the relief valve rope hanger 5 of the device is used on a railway vehicle, if it is hit by external forces from the outside of the vehicle such as cargo, loaders and forklifts during loading and unloading, the relief valve rope hanger 5 will drive the rope 6 connected to its lower part to swing along the second round pin 12 toward the inside of the vehicle at an angle a°. The maximum rotation angle is 90°, that is, the relief valve rope hanger 5 changes from a vertical state to a horizontal state, so that the active torque generated by the collision external force on the relief valve rope hanger 5 with the second round pin 12 as the fulcrum to rotate toward the inside of the vehicle overcomes the passive combined torque of the self-weight torque of the relief valve rope hanger 5 and the pre-tightening torque of the torsion spring installed on the upper part of the relief valve rope hanger 5, so that the relief valve rope hanger 5 swings toward the inside of the vehicle and upwards at a certain angle. Figure 7 As shown, the hanger does not stop swinging until all the torques are balanced. After the external force is cancelled, the relief valve rope hanger 5 will return to its original vertical state after hitting the limit baffle 4 under the combined torque of the torque generated by its own weight and the torque generated by the torsion spring preload. The swinging function of the relief valve rope hanger 5 of the device avoids the occurrence of bending and deformation of the relief valve rope hanger 5 due to external force collision, and the relief valve rope hanger 5 and the relief valve rope base 2 are rotatably connected by the second round pin 12 instead of the welding connection structure of the existing vehicle, which solves the problem that the relief valve rod hanger of the existing railway vehicle is easily hit by cargo, loaders and forklifts during loading and unloading, causing the relief valve rod hanger to open, crack, break or seriously bend and deform from the welding position, affecting the vehicle's braking relief performance and driving safety;

[0109] The second ring body of the pull rope 6 of the device adopts a second pressure sleeve 25 clamping connection method to replace the welding structure of the existing relief valve pull rod handle closure, avoiding the welding problem of the existing relief valve pull rod. At the same time, the handle 19 of the pull rope 6 is suspended on the second ring body of the flexible pull rope. When it is hit by external force, it will swing along with the relief valve pull rope hanger 5 or itself, avoiding the occurrence of bending and deformation caused by collision of the handle 19, and solving the problem that the relief valve pull rod handle of the existing railway freight car is easily hit by cargo, loaders and forklifts during loading and unloading, causing the relief valve pull rod handle to open at the welding point, crack or suffer severe bending and deformation, affecting the vehicle's braking relief performance and driving safety.

[0110] The relief valve rope base 2 and the relief valve rope hanger 5 of the device both adopt a high-strength, atmospheric corrosion-resistant thick-walled steel plate corrugated structure, which improves their corrosion resistance, strength and rigidity, extends their service life and maintenance cycle, improves maintenance efficiency, reduces maintenance costs, and improves reliability and safety performance. It solves the problem that the existing relief valve rod hanger is made of ordinary materials and its strength and rigidity are insufficient to support the combined force of its cantilever force, the self-gravity of the relief valve rod and the shaking force of the vehicle after corrosion, causing deformation and cracking of the relief valve rod hanger. At the same time, it solves the problem that the existing relief valve rod base and relief valve rope hanger need to be removed in the factory due to severe corrosion, and new parts need to be added during assembly, which affects maintenance costs and maintenance efficiency.

[0111] The relief valve rope hanger 5 of the device adopts a structure of rotational connection with the relief valve rope base 2 using a second round pin 12 to replace the existing welding structure, which solves the problem that the existing relief valve pull rod hanger installation method is unreasonable in design, with a small connection contact surface and a short weld, resulting in the welding strength being unable to withstand long-term repeated impact of external forces such as cargo, loaders and forklifts, resulting in weld fatigue, cracking or fracture; solves the problem that the existing relief valve pull rod hanger has welding quality defects such as small weld angle, cold weld, perforation, etc., which causes cracks and open welds at the welds, causing the relief valve pull rod hanger and the relief valve rod to fall off; solves the problem that the existing relief valve pull rod hanger cantilever structure causes high stress and easy open welds at the welds at the connection between it and the base; since the relief valve pull rope hanger 5 and the relief valve pull rope base 2 no longer adopt a welding connection structure, the occurrence of existing welding defects is avoided, and the problem that the existing relief valve pull rod hanger and the base adopt a full welding connection when assembling with the base, which causes a high probability of cracks, open welds and other defects at the welds due to the large number of welds, affecting the strength of the hanger, and thus easily causing traffic safety accidents. In addition, the structure of the rotational connection through the second round pin 12 also solves the problems of large welding workload, high labor cost, high labor intensity and severe environmental pollution during the assembly of the existing relief valve pull rod hanger.

[0112] The pull rope 6 of the device is wound around a stainless steel protective sleeve 18 at the head facing the vehicle and then clamped with a first pressure sleeve 23, which improves the wear resistance and service life of the pull rope 6 head, prevents excessive bending at the closed ring at the end of the pull rope 6 to cause stress concentration and wear, and solves the problem that when the circular hole on the head of the existing relief valve rod facing the vehicle has large processing deviation and excessive wear, such as when the hanger at the handle of the relief valve rod also breaks and falls off, it will cause the relief valve rod to fall off and be lost.

[0113] The draw rope 6 of the device passes through the support holes 17 between the two guide sleeves 9 and the lower part of the relief valve draw rope hanger 5 in sequence. When disassembling the draw rope 6, it is only necessary to use simple tools such as a wrench to disassemble the next guide sleeve 9 and the first cotter pin 11, the first flat washer 10 and the first round pin 8 connected thereto to pull out the draw rope 6, which solves the problem that when dealing with the relief valve pull rod failure in the existing process, it is time-consuming and labor-intensive to disassemble the L-shaped anti-slip plate and the relief valve pull rod handle as a whole from the hanger; the device has the advantages of convenient assembly and maintenance, high efficiency, low cost and good safety, and solves the problem that the existing L-shaped anti-slip plate and the relief valve pull rod hanger are fastened with special rivets, rings or bolts, and nuts and then spot-welded to prevent them from falling off. It requires special riveting equipment to assemble or spot-weld with an electric welder, which makes it impossible to disassemble quickly on site, and it is difficult to saw bolts or rivets with a saw blade, and the labor intensity is high. Disassembly is time-consuming and labor-intensive, and the processing cycle is long. It is difficult to complete within the technical inspection time, which affects timely Dealing with faults such as excessive wear of the relief valve rod not only involves the problems of many parts, many manufacturing and maintenance processes, high cost and low efficiency, but also brings safety hazards and inconvenience in handling temporary faults. At the same time, it also solves the problem that the existing structure is inconvenient to carry when using other disassembly tools, and is restricted by factors such as space and sparks during handling, which poses certain safety hazards. The mismatch of on-site repair tools increases the difficulty of handling, and to a certain extent also restricts the enthusiasm for on-site handling of faulty vehicles, which is not conducive to improving the overall operating quality of the vehicle; it solves the problem that the abnormal wear of the contact part between the existing relief valve rod handle and the L-shaped anti-slip plate causes the relief valve rod handle to break, affecting driving safety, maintenance cost and maintenance efficiency; it solves the problem that the existing relief valve rod needs to be disassembled before maintenance, and its mounting bolts need to be cut or rivets are easily burned out, resulting in the L-shaped anti-slip plate and the hanger requiring welding processing holes or being scrapped, resulting in high maintenance costs.

[0114] The relief valve rope hanger 5 and the relief valve rope base 2 of the device have a simple structure, are easy to manufacture and maintain, have certain strength and rigidity, are highly reliable, and do not affect the assembly and maintenance of other components. In particular, the relief valve rope hanger 5 adopts a second round pin 12 to rotate with the relief valve rope base 2 to replace the existing welding structure, which solves the problems of large welding workload, high labor cost, high labor intensity, and serious environmental pollution of the existing relief valve pull rod hanger.

[0115] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not 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 railway vehicle relief valve pull rope installation hanger device, characterized in that: The device includes: At least one suspension seat structure, the suspension seat structure comprising a support assembly, a suspension seat and an elastic reset member; at least one pull rope, one end of which is connected to a relief valve handle of the railway vehicle; One end of the support assembly is fixedly connected to the side beam of the railway vehicle; One end of the hanging seat is rotatably connected to the supporting assembly, a supporting hole is provided at the lower part of one side of the hanging seat close to the side beam, the other end of the pull rope passes through the supporting hole, and an anti-slip ring is provided on the pull rope and between the other end thereof and the supporting hole; The two ends of the elastic reset member are respectively connected to the support assembly and the suspension seat, and the elastic reset member can rotate the suspension seat to a vertical state; The support assembly comprises: A base, one end of the base is fixedly connected to the inner web of the side beam, a first groove is provided between the two ends of the base and the bottom, the bottom of a part of the first groove is fixedly connected to the lower wing of the side beam, and one end of the hanger is rotatably connected to the inner side of another part of the first groove; A limit baffle, the limit baffle is fixedly connected to the inner side of the first groove and is located between the hanger and the lower wing. When the hanger is attached to the limit baffle, the hanger is in a vertical state; At least one rib is fixedly connected to the inner web of the side beam and the top of the base.

2. A railway vehicle relief valve pull rope installation hanger device according to claim 1, characterized in that: The elastic reset element is a torsion spring.

3. A railway vehicle relief valve pull rope installation hanger device according to claim 2, characterized in that: A second groove is provided between the two ends of the hanging seat and a side of the hanging seat away from the limit baffle, and a rotating component is provided between the first groove and the second groove; The elastic reset member is sleeved on the rotating assembly, one end of the elastic reset member is connected to the inner top of the first groove, and the other end is connected to the inner side of the hanging seat and close to one side of the limit baffle.

4. A railway vehicle relief valve pull rope installation hanger device according to claim 3, characterized in that: The suspension structure also includes a guide assembly, which includes: Two first round pins, one end of each of the two first round pins passes through the inner side of the second groove and is respectively connected to the upper part and the lower part of the center of the support hole; Two guide sleeves, the two guide sleeves are respectively sleeved on the two first round pins, a first annular groove is provided on the circumferential wall of the guide sleeve, a gap is provided between the two first annular grooves, the distance of the gap is smaller than the diameter of the support hole, and the pull rope passes through the gap.

5. A railway vehicle relief valve pull rope installation hanger device according to claim 3, characterized in that: The rotating assembly comprises: a second round pin, one end of which passes through the first groove and the second groove; Two isolation pads are both sleeved on the second round pin, one of the isolation pads is arranged between the inner side of the first groove and the outer side of the second groove, and the other isolation pad is arranged between the inner other side of the first groove and the outer other side of the second groove.

6. A railway vehicle relief valve pull rope installation hanger device according to claim 1, characterized in that: The other end of the pull rope is wound back to form a closed second ring body, and a handle is sleeved on the second ring body.

7. A railway vehicle relief valve pull rope installation hanger device according to claim 1, characterized in that: The diameter of the pull rope is φ3mm-φ3.5mm, and the pull rope is a stainless steel wire rope.

8. A railway vehicle relief valve pull rope installation hanger device according to claim 1, characterized in that: The utility model also comprises at least one bracket, which is connected to the underframe of the railway vehicle and is located between the relief valve and the hanger. The bracket is also provided with a guide assembly for guiding and supporting the pull rope.

9. A railway vehicle, characterized in that: include: A 120-type air control valve and a relief valve are arranged on one side of the center beam of the railway vehicle. A relief valve handle is arranged on the relief valve. The relief valve handle is U-shaped, and the U-shaped opening of the relief valve handle faces downward. A protective sleeve is rotatably connected to the inner side of the relief valve handle. A second annular groove is arranged on the circumferential wall of the protective sleeve. One end of the pull rope is wound back in the second annular groove to form a closed first ring body. A railway vehicle relief valve pull rope installation hanger device according to any one of claims 1 to 8; The two suspension seat structures are provided with two symmetrically arranged and respectively connected to the two side beams of the railway vehicle; Two pull ropes are provided, and the lengths of the two pull ropes are different.

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