Switch tie bolt anti-loosening assembly and switch tie base plate fixing structure
By designing the anti-loosening component of the sling bolt and the fixed structure of the sling pad plate, the supporting plate, the anti-loosening plate and the locking parts combined with the spring washer and the nylon buffer sleeve, the problem of rail offset caused by the loose bolt during the train is solved, and the railway is improved. The stability of the rails and the safety of the trains.
Patent Information
- Application Number
- CN202420161029.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-23
AI Technical Summary
During the train, especially when turning, the bolts on the tracks are prone to loosen, causing the rails to deviate and affecting the safety of the train's driving path.
A loosening component for the bolt bolt is designed, including a support plate, a loosening plate and a locking member. The loosening plate is supported by the support plate. The loosening plate is cooperated with the bolt head. The locking member prevents the loosening plate from being separated to ensure that Bolt fixation; in addition, combined with spring washer and nylon buffer sleeve, a fixing structure is formed to prevent the bolt from loosening.
It effectively prevents bolts from loosening, ensures the stability and safety of the rails, and improves the stability and comfort of the train during driving.
Smart Images
Figure CN222139663U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tracks, and particularly relates to a switch tie bolt anti-loosening component and a switch tie pad fixing structure. Background Art
[0002] Trains are one of the main means of transportation for humans. They are favored by passengers for their high speed and low accident rate. Rails are essential infrastructure for train operation, and their quality directly affects the speed and safety of trains. In order to make the train more stable during travel and ensure the comfort of passengers when riding on the train, pads are generally installed under the rails to achieve shock absorption.
[0003] After the original railway tracks have been used by trains for a long time, the bolts on the train pads (especially the switch pads, when changing tracks or turning, the tracks will be subjected to large lateral forces) are prone to loosening, causing the rails to shift slightly, causing the entire track's travel path to shift, thus posing a danger to the train's travel process, change of direction or track changing. Utility Model Content
[0004] The utility model provides a switch tie bolt anti-loosening assembly and a switch tie pad fixing structure, which are used to prevent the switch tie bolts from loosening; the switch tie bolt anti-loosening assembly has a simple structure and is easy to assemble. The technical solution is as follows:
[0005] On the one hand, the embodiment of the utility model provides a switch sleeper bolt anti-loosening assembly, including a support plate 1, an anti-loosening plate 2 and two locking members 3, the support plate 1 includes a pad body 11, a limiting portion 12 on the lower side of the pad body 11 and two supporting portions 13 on the upper side of the pad body 11; the pad body 11 is located on the upper side of the sleeper pad 4 and is provided with a through hole 14 for the rod of the bolt 5 to pass through, the limiting portion 12 is located on the outer side of the outer end of the sleeper pad 4, the two supporting portions 13 are arranged side by side in the width direction of the sleeper pad 4 and are provided with locking protrusions 15 thereon, and the head of the bolt 5 is located between the two supporting portions 13; the anti-loosening plate 2 is located at the upper side of the sleeper pad 4 It is located directly above the pad body 11 and is placed on two support parts 13, wherein a regular star-shaped polygonal hole 21 cooperating with the head of the bolt 5 is provided in the middle thereof, and two locking holes 22 cooperating with the locking protrusions 15 are provided thereon; the regular star-shaped polygonal hole 21 is sleeved on the middle or upper part of the head of the bolt 5, and the locking protrusion 15 passes upward through the locking hole 22 on the corresponding side, and two locking members 3 are respectively detachably provided on the two locking protrusions 15 and are both located above the anti-loosening plate 2, and the locking member 3 is used to prevent the anti-loosening plate 2 from being separated upward from the locking protrusion 21, and the number of corners of the regular star-shaped polygonal hole 21 is 6N, where N is an integer greater than or equal to 2.
[0006] Specifically, the pad body 11 in the embodiment of the utility model is a rectangular plate arranged along the width direction of the sleeper pad 4, the anti-loosening plate 2 is arranged along the width direction of the sleeper pad 4, and the through hole 14 is a circular hole coaxially arranged with the bolt 5.
[0007] More specifically, the long sides of the outer side of the pad body 11 in the embodiment of the utility model are bent downward to vertical to form a limiting portion 12, and its two wide sides are bent upward to vertical to form two supporting portions 13 respectively; the middle part of the upper end of the supporting portion 13 protrudes upward to form a locking protrusion 15, and the limiting portion 12 is arranged along the width direction of the sleeper pad 4, and the supporting portion 13 and the locking protrusion 15 are both arranged along the length direction of the sleeper pad 4; the locking hole 22 is a strip hole arranged along the length direction of the sleeper pad 4, and its two ends are located at the adjacent outer sides of the corresponding ends of the locking protrusion 15.
[0008] The regular star-shaped polygonal hole 21 in the embodiment of the utility model is a regular star-shaped octagon, and the six corners thereof match the six corners of the head of the bolt 5 .
[0009] Among them, the locking piece 3 in the embodiment of the utility model is an O-type pin, and a socket 16 cooperating with the locking piece 3 is provided on the locking protrusion 15 and located adjacent to the upper part of the anti-loosening plate 2; the pin 31 of the locking piece 3 is inserted into the socket 16, and its O-ring 32 is sleeved on the locking protrusion 15.
[0010] Specifically, the locking protrusion 15 in the embodiment of the utility model is a rectangular protrusion, the two corners of its upper end are rounded, and its length in the length direction of the sleeper plate 4 is smaller than the diameter of the O-ring 32; the insertion hole 16 is arranged along the width direction of the sleeper plate 4 and is arranged on the center line of the locking protrusion 15.
[0011] Among them, the thickness of the pad body 11 in the embodiment of the utility model is 2-6mm, the diameter of the through hole 14 is 31-40mm and the distance between its center and the limiting portion 12 is 35-37mm, the height of the support portion 13 is 16-22mm, and the height of the locking protrusion 15 is greater than or equal to 7mm.
[0012] Specifically, the thickness of the pad body 11 in the embodiment of the utility model is 3 mm, the diameter of the through hole 14 is 32 mm, and the distance between the center of the through hole 14 and the limiting portion 12 is 35 mm, and the height of the supporting portion 13 is 20 mm.
[0013] On the other hand, the embodiment of the utility model also provides a switch sleeper pad fixing structure, including a bolt 5, a spring washer and the aforementioned switch sleeper bolt anti-loosening assembly, the bolt 5 is vertically arranged and the lower part of its rod is fixedly connected to the sleeper pad 4; the switch sleeper bolt anti-loosening assembly is located between the spring washer and the sleeper pad 4, and the rod of the bolt 5 passes through the spring washer and the switch sleeper bolt anti-loosening assembly in sequence from top to bottom.
[0014] Furthermore, the switch sleeper pad fixing structure in the embodiment of the utility model also includes a nylon buffer sleeve and a flat washer, and the spring washer, switch sleeper bolt anti-loosening assembly, flat washer and nylon buffer sleeve are arranged in sequence from top to bottom, and the rod of the bolt 5 passes through the spring washer, switch sleeper bolt anti-loosening assembly, flat washer and nylon buffer sleeve in sequence from top to bottom.
[0015] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are: the embodiment of the utility model provides a switch sleeper bolt anti-loosening assembly and a switch sleeper pad fixing structure, which are used to prevent the switch sleeper bolts from loosening; the switch sleeper bolt anti-loosening assembly has a simple structure and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a top view of a support plate in an embodiment of the utility model;
[0017] Figure 2 is a side view of a support plate in an embodiment of the utility model;
[0018] Figure 3 It is a schematic structural diagram of the anti-loosening plate in the embodiment of the utility model;
[0019] Figure 4 is a schematic structural diagram of a turnout tie bolt anti-loosening assembly provided in Example 2;
[0020] Figure 5 It is a structural schematic diagram of the switch tie pad fixing structure in the embodiment of the utility model.
[0021] In the figure: 1 support plate, 2 anti-loosening plate, 3 locking piece, 4 sleeper pad, 5 bolt;
[0022] 11 pad body, 12 limiting portion, 13 supporting portion, 14 through hole, 15 locking protrusion, 16 plug hole;
[0023] 31: latch, 32: O-ring. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.
[0025] Example 1
[0026] See also Figure 1-5 Embodiment 1 provides a switch sleeper bolt anti-loosening assembly, including a support plate 1, an anti-loosening plate 2 and two locking members 3, etc. The anti-loosening plate 2 is used to prevent the bolt 5 from rotating, the support plate 1 is used to support and fix the anti-loosening plate 2, and the locking members 3 are used to fix the anti-loosening plate 2 on the support plate 1.
[0027] The support plate 1 includes a pad body 11, a limiting portion 12 on the lower side of the pad body 11, and two supporting portions 13 on the upper side of the pad body 11. The limiting portion 12 can prevent the pad body 11 from rotating, and the supporting portion 13 is used to support the anti-loosening plate 2 to ensure that the anti-loosening plate 2 is located in the middle or upper part of the head of the bolt 5. The pad body 11 is located on the upper side of the sleeper pad 4 (a flat washer and / or a nylon buffer sleeve, etc. can be arranged between them) and a through hole 14 is provided thereon for the rod of the bolt 5 to pass through. The limiting portion 12 is located on the outer side of the outer end of the sleeper pad 4, and is located on the outer side of the pad body 11. The two supporting portions 13 are arranged side by side in the width direction of the sleeper pad 4, and are each provided with a locking protrusion 15, which has a suitable gap with the head of the bolt 5 to ensure the installation of the bolt 5. The head of the bolt 5 is located between the two supporting portions 13. The anti-loosening plate 2 is located directly above the pad body 11, which is placed on two supporting parts 13, and a regular star-shaped polygonal hole 21 is provided in the middle thereof to match the head of the bolt 5, and two locking holes 22 are provided thereon to match the locking protrusion 15 (the locking protrusion 15 can pass through, but the supporting part 13 cannot pass through). Specifically, the two locking holes 22 are respectively located at the two ends of the anti-loosening plate 2 and are respectively located on both sides of the regular star-shaped polygonal hole 21. The regular star-shaped polygonal hole 21 is sleeved on the middle or upper part of the head of the bolt 5 (to have a stronger adaptability in advance of achieving the fixing of the head of the bolt 5), above when there is a spring washer between the upper side of the pad body 11 and the head of the bolt 5. The number of corners of the regular star-shaped polygonal hole 21 is 6N, and N (preferably 3) is an integer greater than or equal to 2. The locking protrusion 15 passes upward through the locking hole 22 on the corresponding side, and the two locking members 3 are detachably arranged on the two locking protrusions 15 and are both located above the anti-loosening plate 2. The locking member 3 is used to prevent the anti-loosening plate 2 from separating upward from the locking protrusion 21, and can specifically be an O-pin, a latch or other locking structure.
[0028] Specifically, see Figure 1-5 The pad body 11 in the embodiment of the utility model is a rectangular plate arranged along the width direction of the sleeper pad 4, the anti-loosening plate 2 is arranged along the width direction of the sleeper pad 4, and the through hole 14 is a circular hole arranged coaxially with the bolt 5 (slightly larger than the rod of the bolt 5). The long side of the outer side of the pad body 11 is bent downward to vertical to form a limit portion 12 (specifically a rectangular plate), and its two wide sides (the part to be cut off at the limit portion 12) are bent upward to vertical to form two support portions 13 (specifically a rectangular plate). The middle part of the upper end of the support portion 13 protrudes upward to form a locking protrusion 15 (specifically a rectangular plate), the limit portion 12 is arranged along the width direction of the sleeper pad 4, and the support portion 13 and the locking protrusion 15 are both arranged along the length direction of the sleeper pad 4. Then the support plate 1 can be formed by a bending machine at one time. The locking hole 22 is a strip hole arranged along the length direction of the sleeper pad 4, and its two ends are located at the adjacent outer sides of the corresponding ends of the locking protrusion 15.
[0029] Among them, see Figure 3 The regular star-shaped polygonal hole 21 in the embodiment of the utility model is a regular star-shaped octagon, and its six corners (alternately arranged, with two corners between two adjacent corners) match with the six corners of the head of the bolt 5 (specifically, clearance fit).
[0030] Among them, see Figure 4 The locking member 3 in the embodiment of the utility model is an O-type pin (including a latch 31 and an O-ring 32), which is less likely to fall off the locking protrusion 15 by itself and is easier to disassemble and assemble. A socket 16 (specifically a round hole) that cooperates with the locking member 3 is provided on the locking protrusion 15 and is located adjacent to and above the anti-loosening plate 2. The latch 31 of the locking member 3 is inserted into the socket 16, and its O-ring 32 is sleeved on the locking protrusion 15. Specifically, the locking protrusion 15 is a rectangular protrusion, and the two corners at its upper end are rounded, and its length in the length direction of the sleeper pad 4 is less than (slightly less than) the diameter of the O-ring 32. The socket 16 is arranged along the width direction of the sleeper pad 4 and is arranged on the center line of the locking protrusion 15.
[0031] Among them, the thickness of the pad body 11 in the embodiment of the utility model is 2-6mm, the diameter of the through hole 14 is 31-40mm and the distance between its center and the limiting part 12 is 35-37mm, the height of the support part 13 is 16-22mm, and the height of the locking protrusion 15 is greater than or equal to 7mm.
[0032] Furthermore, the switch sleeper bolt anti-loosening assembly in this embodiment is a symmetrical structure to facilitate the installation of both ends of the sleeper pad 4.
[0033] Furthermore, the sleeper pad 4 in this embodiment is a turnout pad.
[0034] Example 2
[0035] See also Figure 4 Embodiment 2 provides a switch tie bolt anti-loosening assembly, and its structure is basically the same as that of embodiment 1, except that the anti-loosening plate 2 in this embodiment is a rectangular plate with two long sides as arc-shaped sides.
[0036] Example 3
[0037] Example 3 provides a switch tie bolt anti-loosening assembly, and its structure is basically the same as that of Example 1, except that: the thickness of the pad body 11 in this embodiment is 3 mm, its length is 80 mm, and its width is 63 mm. The height of the support portion 13 is 20 mm. The height of the locking protrusion 15 is 13 mm, and its length is 56 mm. The diameter of the through hole 14 is 32 mm, and the distance between its center and the limiting portion 12 is 35 mm. The length of the locking hole 22 is 26 mm, and its width is 5 mm. The length of the anti-loosening plate 2 is 100 mm, and its width is 70 mm.
[0038] Example 4
[0039] See also Figure 5 Embodiment 4 provides a switch sleeper pad fixing structure, and both ends of the sleeper pad 4 are fixed to the sleeper through a switch sleeper pad fixing structure. The switch sleeper pad fixing structure includes bolts 5, spring washers and the switch sleeper bolt anti-loosening assembly disclosed in Embodiments 1-3, etc. The specification of the bolt 5 is M30*155, and the spring washer cooperates with the head of the bolt 5. The bolt 5 is vertically arranged and the lower part of its rod is fixedly connected to the sleeper pad 4 (specifically, a threaded connection). The switch sleeper bolt anti-loosening assembly is located between the spring washer and the sleeper pad 4, and the rod of the bolt 5 passes through the spring washer and the switch sleeper bolt anti-loosening assembly from top to bottom in sequence (specifically, passes downward through the through hole 14 on the support plate 1).
[0040] Example 5
[0041] See also Figure 5 Embodiment 5 provides a switch sleeper plate fixing structure, including bolts 5, spring washers, nylon buffer sleeves, flat washers and the switch sleeper bolt anti-loosening assembly disclosed in embodiments 1-3, etc. The specification of bolt 5 is M30*174, and the spring washers and flat washers are matched with bolt 5. The spring washers, switch sleeper bolt anti-loosening assembly, flat washers and nylon buffer sleeves are arranged in sequence from top to bottom. The rod of bolt 5 passes through the spring washers, switch sleeper bolt anti-loosening assembly (specifically, passes through the through hole 14 on the support plate 1 downward), flat washers and nylon buffer sleeves in sequence from top to bottom, and then is fixedly connected to the sleeper plate 4 (specifically, threaded connection).
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bolt anti-loosening assembly for a switch tie, It is characterized in that The invention comprises a support plate (1), an anti-loosening plate (2) and two locking members (3); the support plate (1) comprises a pad body (11), a limiting portion (12) on the lower side of the pad body (11) and two supporting portions (13) on the upper side of the pad body (11); the pad body (11) is located on the upper side of the sleeper pad (4) and is provided with a through hole (14) for the rod of a bolt (5) to pass through; the limiting portion (12) is located on the outer side of the outer end of the sleeper pad (4); the two supporting portions (13) are arranged side by side in the width direction of the sleeper pad (4) and are provided with locking protrusions (15); the head of the bolt (5) is located between the two supporting portions (13); the anti-loosening plate (2) is located on the pad body (11) and is provided with a locking protrusion (15). It is placed on the two supporting parts (13), wherein the middle part is provided with a regular star-shaped polygonal hole (21) cooperating with the head of the bolt (5), and two locking holes (22) cooperating with the locking protrusion (15) are provided on it; the regular star-shaped polygonal hole (21) is sleeved on the middle part or the upper part of the head of the bolt (5), and the locking protrusion (15) passes upward through the locking hole (22) on the corresponding side, and two locking members (3) are respectively detachably arranged on the two locking protrusions (15) and are both located above the anti-loosening plate (2), and the locking members (3) are used to prevent the anti-loosening plate (2) from being separated upward from the locking protrusion (15), and the number of corners of the regular star-shaped polygonal hole (21) is 6N, where N is an integer greater than or equal to 2.
2. The switch tie bolt anti-loosening assembly according to claim 1, It is characterized in that The pad body (11) is a rectangular plate arranged along the width direction of the sleeper pad (4), the anti-loosening plate (2) is arranged along the width direction of the sleeper pad (4), and the through hole (14) is a circular hole arranged coaxially with the bolt (5).
3. The switch tie bolt anti-loosening assembly according to claim 2, It is characterized in that The long sides of the outer side of the pad body (11) are bent downward to vertical to form a limiting portion (12), and the two wide sides are bent upward to vertical to form two supporting portions (13) respectively; the middle part of the upper end of the supporting portion (13) protrudes upward to form a locking protrusion (15); the limiting portion (12) is arranged along the width direction of the sleeper pad (4), and the supporting portion (13) and the locking protrusion (15) are both arranged along the length direction of the sleeper pad (4); the locking hole (22) is a strip hole arranged along the length direction of the sleeper pad (4), and its two ends are located adjacent to the outer sides of the corresponding ends of the locking protrusion (15).
4. The switch tie bolt anti-loosening assembly according to claim 1, It is characterized in that The regular star-shaped polygonal hole (21) is a regular star-shaped octagon, and the six corners thereof match the six corners of the head of the bolt (5).
5. The switch tie bolt anti-loosening assembly according to claim 3, It is characterized in that The locking member (3) is an O-shaped pin, and a plug hole (16) cooperating with the locking member (3) is provided on the locking protrusion (15) and located adjacent to the upper part of the anti-loosening plate (2); the plug pin (31) of the locking member (3) is inserted into the plug hole (16), and the O-shaped ring (32) is sleeved on the locking protrusion (15).
6. The switch tie bolt anti-loosening assembly according to claim 5, It is characterized in that The locking protrusion (15) is a rectangular protrusion, the two corners of its upper end are rounded, and its length in the length direction of the sleeper pad (4) is smaller than the diameter of the O-ring (32); the insertion hole (16) is arranged along the width direction of the sleeper pad (4) and is arranged on the center line of the locking protrusion (15).
7. The switch tie bolt anti-loosening assembly according to claim 2, It is characterized in that The thickness of the pad body (11) is 2-6 mm, the diameter of the through hole (14) is 31-40 mm and the distance between the center of the through hole and the limiting portion (12) is 35-37 mm, the height of the supporting portion (13) is 16-22 mm, and the height of the locking protrusion (15) is greater than or equal to 7 mm.
8. The switch tie bolt anti-loosening assembly according to claim 2, It is characterized in that The thickness of the pad body (11) is 3 mm, the diameter of the through hole (14) is 32 mm and the distance between the center of the through hole and the limiting portion (12) is 35 mm, and the height of the supporting portion (13) is 20 mm.
9. A switch sleeper pad fixing structure, comprising a bolt (5) and a spring washer, wherein the bolt (5) is arranged vertically and the lower part of the rod portion thereof is fixedly connected to the sleeper pad (4); It is characterized in that It also includes a switch sleeper bolt anti-loosening assembly as described in any one of claims 1 to 8; the switch sleeper bolt anti-loosening assembly is located between the spring washer and the sleeper plate (4), and the rod of the bolt (5) passes through the spring washer and the switch sleeper bolt anti-loosening assembly in sequence from top to bottom.
10. The switch tie pad fixing structure according to claim 9, It is characterized in that The switch sleeper pad fixing structure also includes a nylon buffer sleeve and a flat washer, wherein the spring washer, the switch sleeper bolt anti-loosening assembly, the flat washer and the nylon buffer sleeve are arranged in sequence from top to bottom, and the rod of the bolt (5) passes through the spring washer, the switch sleeper bolt anti-loosening assembly, the flat washer and the nylon buffer sleeve in sequence from top to bottom.