Improved embedded iron seat type large-height-adjustment fastener device and system

Abstract

The utility model provides an improved pre-embedded iron seat type large-height-adjustment-amount fastener device and system.The improved pre-embedded iron seat type large-height-adjustment-amount fastener device comprises an elastic strip, a T-shaped bolt, a limiting plate, a cover type nut, a gauge block, a frame box type gauge baffle, a special pre-embedded iron seat, a split mounting type height adjusting gasket for the iron seat and the iron seat; the frame box type gauge apron is designed to be of a wrapping type and can be buckled and pressed on an iron base of a specially-made embedded iron base in a surrounding mode to form a whole, the integrity of the structure is improved, and therefore the transverse impact force of a steel rail is effectively counteracted. Part of the parts can continue to use the existing technology, and the overall scheme is small in change of the fastener, so that the universal applicability of the parts is met. The height adjusting gasket for the assembly type iron seat can be designed into different thicknesses according to the requirement of high-low position adjustment to be used in cooperation with a specially-made embedded iron seat and a frame box type gauge apron, and the overall height adjustment of the buckling and pressing part of the specially-made embedded iron seat is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an improved pre-buried iron seat type large height adjustment fastener device and system. Background Art

[0002] The connection between the rails and the switch sleepers is achieved through a fastener system. In the ballasted track structure, the fastener system combines the rails and switch sleepers into a track structure, which bears the train load and resists the longitudinal and lateral forces. In the ballastless track structure, the fastener system has an adjustment requirement of -4mm to +26mm. When the existing fastener system is adjusted by a large amount, the stress conditions of the switch sleeper bolts become very unfavorable. The switch sleeper bolts are easily damaged by the lateral force. When the ballastless track foundation sinks more than 26mm, the fastener system's adjustment requirement cannot be met. Utility Model Content

[0003] On one hand, the utility model provides an improved pre-buried iron seat type fastener device with large height adjustment, so as to solve the technical problem that the existing pre-buried iron seat fasteners for heavy-duty turnouts cannot achieve height adjustment.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] An improved pre-buried iron seat type large height adjustment fastener device, including spring bars, T-bolts, limit plates, cap nuts, gauge blocks, frame box type gauge baffles, special pre-buried iron seats, assembled iron seat height adjustment washers, and iron seats, wherein:

[0006] The iron seat is arranged at the upper end of the specially made pre-embedded iron seat and is an integrated structure with the specially made pre-embedded iron seat. A groove for the T-bolt to pass through is provided in the middle of the iron seat.

[0007] The frame box type gauge baffle is enclosed and sleeved on the iron seat to form a whole;

[0008] The height-adjusting gasket for the assembled iron seat is designed with different corresponding thicknesses according to the requirements of height adjustment, and is covered on the iron seat and located within the range surrounded by the frame box type gauge baffle. The height-adjusting gasket for the assembled iron seat is penetrated by a bolt through hole;

[0009] The gauge block is arranged on a side of the frame box type gauge baffle facing the rail;

[0010] The elastic bars are covered on the height-adjusting spacers for the assembled iron seat and the gauge blocks;

[0011] The T-bolt passes through the special embedded iron seat, the height adjustment gasket for the assembled iron seat, the spring bar, and the limit plate in sequence and is threadedly connected with the cap nut, so that the spring bar presses the height adjustment gasket for the assembled iron seat and the gauge block.

[0012] Furthermore, the contour of the side of the height-adjusting gasket for the assembled iron base facing the iron base is seamlessly fitted with the contour of the upper surface of the iron base.

[0013] Furthermore, the frame box type gauge baffle comprises a rectangular frame structure formed by welding four parallel rectangular plates.

[0014] Furthermore, the frame box type gauge baffle includes an integrally formed rectangular frame structure.

[0015] Furthermore, the frame box type gauge baffle comprises a rectangular frame structure formed by plugging four parallel rectangular plates.

[0016] Furthermore, the width of the bottom of the specially made embedded iron seat is 20mm-30mm.

[0017] Furthermore, a limiting lug is protruding from the iron seat, and a limiting notch that matches the limiting lug is correspondingly provided on the frame box type gauge baffle.

[0018] Furthermore, a threaded hole is provided on the iron seat, a countersunk hole is provided on the height-adjusting gasket for the assembled iron seat, and a countersunk screw is provided in the countersunk hole to connect the iron seat and the height-adjusting gasket for the assembled iron seat into one.

[0019] On the other hand, the present application also provides an improved pre-embedded iron seat type large height adjustment fastener system, including an iron pad, a rubber pad, and a height adjustment pad arranged in sequence from top to bottom between the steel rail and the concrete switch sleeper, the iron pad is welded with a conventional fastener device for pressing and fixing the steel rail, and the improved pre-embedded iron seat type large height adjustment fastener device is also symmetrically arranged on the concrete switch sleeper, two specially made pre-embedded iron seats of the improved pre-embedded iron seat type large height adjustment fastener device are pre-embedded in the concrete switch sleeper and are located on the outside of the two ends of the iron pad along the direction perpendicular to the steel rail, and the gauge blocks of the two improved pre-embedded iron seat type large height adjustment fastener devices respectively cooperate with the two ends of the iron pad along the direction perpendicular to the steel rail to press and fix the iron pad on the concrete switch sleeper.

[0020] Furthermore, the rounded corner sizes of the two ends of the iron plate in the direction perpendicular to the rail, the rounded corner sizes of the rail limbs of the rail and the rounded corner sizes of the gauge block are all the same.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present application provides an improved pre-embedded iron seat type large height adjustment fastener device and system, the device includes a spring bar, a T-bolt, a limit plate, a cover nut, a gauge block, a frame box type gauge baffle, a special pre-embedded iron seat, an assembled iron seat height adjustment gasket, and an iron seat. The frame box type gauge baffle of the present application is designed to be wrapped, which can be enclosed and buckled on the iron seat of the special pre-embedded iron seat to form a whole, thereby improving the integrity of the structure, thereby effectively offsetting the lateral impact force of the rail, reducing the probability of loosening, and making the bolts and embedded parts well matched to achieve a good stress state, avoiding premature damage to the switch sleeper bolt pair. Some parts in the present application can use existing technology, and the overall solution has relatively small changes to the fasteners, meeting the universal applicability of the parts. The assembled iron seat height adjustment gasket of the present application can be designed to have different thicknesses according to the requirements of height adjustment and used in conjunction with the special pre-embedded iron seat, so as to achieve the height adjustment of the buckling part of the special pre-embedded iron seat as a whole, meeting the needs of elevation adjustment of some work points.

[0023] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of the improved embedded iron seat type large height adjustment fastener device of the preferred embodiment of the present application.

[0026] Figure 2 This is a schematic diagram of the structure of the specially made embedded iron seat according to the preferred embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the frame box type gauge baffle structure of the preferred embodiment of the present application.

[0028] Figure 4 It is a schematic diagram of the structure of the height-adjusting gasket for the assembled iron seat according to the preferred embodiment of the present application.

[0029] Figure 5 It is a structural diagram of the improved embedded iron seat type large height adjustment fastener system of the preferred embodiment of the present application.

[0030] Described in the figure: 1. Concrete switch sleeper; 2. Iron plate; 3. Rail; 4. Spring bar; 5. T-bolt; 6. Limit plate; 7. Cap nut; 8. Gauge block; 9. Rubber plate; 10. Frame box gauge baffle; 101. Limiting notch; 11. Special embedded iron seat; 12. Height-adjusting gasket for assembled iron seat; 13. Height-adjusting plate; 14. Iron seat; 141. Limiting lug; 15. Bolt through hole; 16. Conventional fastener device. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0032] Reference Figures 1 to 4 As shown, the preferred embodiment of the utility model provides an improved embedded iron seat type large height adjustment fastener device, which is characterized by including a spring bar 4, a T-bolt 5, a limit plate 6, a cap nut 7, a gauge block 8, a frame box type gauge baffle 10, a special embedded iron seat 11, an assembled iron seat height adjustment gasket 12, and an iron seat 14, wherein:

[0033] The iron seat 14 is provided at the upper end of the special pre-embedded iron seat 11 and is an integral structure with the special pre-embedded iron seat 11. A groove for the T-bolt 5 to pass through is provided in the middle of the iron seat 14.

[0034] The frame box type gauge baffle 10 is enclosed and sleeved on the iron seat 14 to form a whole;

[0035] The height-adjusting spacer 12 for the assembled iron seat is designed with different corresponding thicknesses according to the requirements of height adjustment, and is covered on the iron seat 14 and located within the range surrounded by the frame box type gauge baffle 10. The height-adjusting spacer 12 for the assembled iron seat is penetrated by a bolt through hole 15;

[0036] The gauge block 8 is arranged on the side of the frame box gauge baffle 10 facing the rail 3;

[0037] The spring bar 4 is covered on the height-adjusting spacer 12 for the assembled iron seat and the gauge block 8;

[0038] The T-bolt 5 passes through the special embedded iron seat 11, the height-adjusting gasket 12 for the assembled iron seat, the spring bar 4, the limit plate 6 in sequence and is threadedly connected with the cap nut 7, so that the spring bar 4 presses the height-adjusting gasket 12 for the assembled iron seat and the gauge block 8.

[0039] The present embodiment provides an improved pre-embedded iron seat type large height adjustment fastener device, the device includes a spring bar 4, a T-bolt 5, a limit plate 6, a cap nut 7, a gauge block 8, a frame box type gauge baffle 10, a special pre-embedded iron seat 11, an assembled iron seat height adjustment gasket 12, and an iron seat 14. The frame box type gauge baffle 10 of the present application is designed to be wrapped and can be enclosed and buckled on the iron seat 14 of the special pre-embedded iron seat 11 to form a whole, thereby improving the integrity of the structure, thereby effectively offsetting the lateral impact force of the rail, reducing the probability of loosening, and making the bolts and embedded parts well matched to achieve a good stress state, avoiding premature damage to the switch sleeper bolt pair. Some parts in this embodiment can use existing technology, and the overall solution has relatively few changes to the fasteners, meeting the universal applicability of the parts. The height-adjusting gasket 12 for the assembled iron seat of this embodiment can be designed with different thicknesses according to the requirements of height adjustment and used in conjunction with the special embedded iron seat 11 and the frame box-type gauge baffle 10 to achieve the height adjustment of the entire buckling part of the special embedded iron seat 11, solve the problem of insufficient height adjustment capacity of the existing embedded fasteners, and meet the needs of elevation adjustment of some work points.

[0040] Preferably, the contour of the side of the assembled iron seat height-adjusting gasket 12 facing the iron seat 14 is seamlessly fitted with the contour of the upper surface of the iron seat 14 .

[0041] In this embodiment, the surface contours of the assembled iron seat height adjustment gasket 12 and the iron seat 14 in contact therewith are seamlessly fitted together, ensuring that the stress conditions remain unchanged when the fastener device is adjusted in height.

[0042] Preferably, the frame box type gauge baffle 10 comprises a rectangular frame structure formed by welding four parallel rectangular plates.

[0043] In this embodiment, the frame box type gauge baffle 10 is formed by welding four rectangular plates, which is simple to manufacture, has a firm structure and is low in cost.

[0044] Preferably, the frame box type gauge baffle 10 comprises an integrally formed rectangular frame structure.

[0045] In this embodiment, the frame box type gauge baffle 10 is an integrated structure, which is quick to manufacture, has a firm structure and is low in cost.

[0046] Preferably, the frame box type gauge baffle 10 comprises a rectangular frame structure formed by plugging four parallel rectangular plates.

[0047] In this embodiment, the frame box type gauge baffle 10 is formed by plugging and assembling four rectangular plates, which is easy and quick to install, has a firm structure and is low in cost.

[0048] Preferably, the bottom width of the special pre-embedded iron seat 11 is 20mm-30mm. In this embodiment, the bottom of the special pre-embedded iron seat 11 is widened to increase the contact area with the pre-embedded switch sleeper and thus increase the friction force, which can bear the lateral force of the wheel and rail, making the mechanical connection between the entire structure and the switch sleeper body more reliable, and improving the force bearing conditions of the special pre-embedded iron seat 11.

[0049] Preferably, if Figure 2 and Figure 3 As shown, a limiting lug 141 is protruding from the iron seat 14 , and a limiting notch 101 that matches the limiting lug 141 is correspondingly provided on the frame box type gauge baffle 10 .

[0050] In this embodiment, the iron seat 14 and the frame box type gauge baffle 10 are quickly and accurately positioned by the matching limiting lugs 141 and limiting notches 101, ensuring the stability and accuracy of the relative positions of the two and improving the integrity of the structure.

[0051] Preferably, a threaded hole is provided on the iron seat 14, and a countersunk hole is provided on the assembled iron seat height adjustment gasket 12. A countersunk screw is provided in the countersunk hole to connect the iron seat 14 and the assembled iron seat height adjustment gasket 12 as a whole.

[0052] In this embodiment, the iron base 14 and the assembled iron base height adjustment gasket 12 are fixed together by countersunk screws to avoid relative displacement during use, ensure the stability of the relative position of the iron base 14 and the assembled iron base height adjustment gasket 12, and improve the overall rigidity.

[0053] like Figure 5 As shown, another preferred embodiment of the present application also provides an improved pre-embedded iron seat type large height adjustment fastener system, including an iron pad 2, a rubber pad 9, and a height adjustment pad 13, which are sequentially arranged between the steel rail 3 and the concrete switch sleeper 1 from top to bottom. A conventional fastener device 16 for pressing and fixing the steel rail 3 is welded on the iron pad 2, and the improved pre-embedded iron seat type large height adjustment fastener device is also symmetrically arranged on the concrete switch sleeper 1. The special pre-embedded iron seats 11 of the two improved pre-embedded iron seat type large height adjustment fastener devices are pre-embedded in the concrete switch sleeper 1 and are located on the outside of the two ends of the iron pad 2 along the direction perpendicular to the steel rail. The gauge blocks 8 of the two improved pre-embedded iron seat type large height adjustment fastener devices respectively cooperate with the two ends of the iron pad 2 along the direction perpendicular to the steel rail to press and fix the iron pad 2 on the concrete switch sleeper 1.

[0054] The improved pre-embedded iron seat type large height adjustment fastener system of this embodiment is symmetrically provided with the improved pre-embedded iron seat type large height adjustment fastener device on the concrete switch sleeper 1. The two specially made pre-embedded iron seats 11 of the improved pre-embedded iron seat type large height adjustment fastener device are pre-embedded in the concrete switch sleeper 1 and are located outside the two ends of the iron pad 2 along the direction perpendicular to the rail. The gauge blocks 8 of the two improved pre-embedded iron seat type large height adjustment fastener devices respectively cooperate with the two ends of the iron pad 2 along the direction perpendicular to the rail to press the iron pad 2 to the concrete switch sleeper 1. Since the frame box type gauge baffle 10 of the improved pre-embedded iron seat type large height adjustment fastener device is designed to be wrapped, it can be enclosed and buckled on the iron seat 14 of the specially made pre-embedded iron seat 11 to form a whole, thereby improving the integrity of the structure, thereby effectively offsetting the lateral impact force of the rail 3, reducing the probability of loosening, and making the bolts and embedded parts well matched, achieving a good stress state, and avoiding premature damage to the switch sleeper bolt pair. Some parts of this embodiment can be made using existing technology, and the overall solution requires minimal changes to the fasteners, ensuring universal applicability of the components. The height-adjusting spacers 12 for the assembled iron seat of this embodiment can be designed with different thicknesses according to the requirements of height adjustment. They are used in conjunction with the specially made pre-embedded iron seat and the frame box-type gauge baffle 10 to achieve height adjustment of the entire buckling portion of the specially made pre-embedded iron seat 11, solving the problem of insufficient height adjustment capacity of existing pre-embedded fasteners and meeting the requirements of elevation adjustment at some work sites.

[0055] Preferably, the rounded corner sizes of the two ends of the iron plate 2 along the direction perpendicular to the rail, the rounded corner sizes of the rail limbs of the rail 3 and the rounded corner sizes of the gauge block 8 are all the same, so that the iron plate 2 and the gauge block 8 can obtain a good matching relationship and ensure better stress conditions.

[0056] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An improved pre-buried iron seat type large height adjustment fastener device, characterized in that: It comprises spring bars (4), T-bolts (5), limit plates (6), cap nuts (7), gauge blocks (8), frame box gauge baffles (10), specially made embedded iron seats (11), height-adjusting washers for assembled iron seats (12), and iron seats (14), wherein: The iron seat (14) is arranged at the upper end of the special embedded iron seat (11) and is an integrated structure with the special embedded iron seat (11), and a groove for the T-bolt (5) to pass through is provided in the middle of the iron seat (14); The frame box type gauge baffle (10) is enclosed and sleeved on the iron seat (14) to form a whole; The height-adjusting gasket (12) for the assembled iron seat is designed to have different corresponding thicknesses according to the requirements of height adjustment, is covered on the iron seat (14) and is located within the range surrounded by the frame box type gauge baffle (10), and is penetrated by a bolt through hole (15); The gauge block (8) is arranged on a side of the frame box type gauge baffle (10) facing the rail (3); The spring bar (4) is covered on the height-adjusting gasket (12) for the assembled iron seat and the gauge block (8); The T-bolt (5) passes through the specially made pre-buried iron seat (11), the height-adjusting washer (12) for the assembled iron seat, the spring bar (4), the limit plate (6) in sequence and is then threadedly connected to the cap nut (7), so that the spring bar (4) presses the height-adjusting washer (12) for the assembled iron seat and the gauge block (8).

2. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The contour of the side of the assembled iron seat height adjustment gasket (12) facing the iron seat (14) is seamlessly fitted with the contour of the upper surface of the iron seat (14).

3. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The frame box type track gauge baffle (10) comprises a rectangular frame structure formed by welding four parallel rectangular plates.

4. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The frame box type track gauge baffle (10) comprises an integrally formed rectangular frame structure.

5. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The frame box type track gauge baffle (10) comprises a rectangular frame structure formed by plugging four rectangular plates parallel to each other.

6. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The width of the bottom of the specially made embedded iron seat (11) is 20mm-30mm.

7. The improved pre-buried iron seat type fastener device with large height adjustment according to claim 1 is characterized in that: A limiting lug (141) is protruding from the iron seat (14), and a limiting notch (101) matching the limiting lug (141) is correspondingly provided on the frame box type gauge baffle (10).

8. The improved pre-buried iron seat type large height adjustment fastener device according to claim 1 is characterized in that: The iron seat (14) is provided with a threaded hole, the assembled iron seat height adjustment washer (12) is provided with a countersunk hole, and a countersunk screw is provided in the countersunk hole to connect the iron seat (14) and the assembled iron seat height adjustment washer (12) into one body.

9. An improved pre-buried iron seat type large height adjustment fastener system, comprising an iron pad (2), a rubber pad (9), and a height adjustment pad (13) arranged in sequence from top to bottom between a steel rail (3) and a concrete switch sleeper (1), wherein a conventional fastener device (16) for pressing and fixing the steel rail (3) is welded on the iron pad (2), characterized in that: The concrete switch sleeper (1) is also symmetrically provided with an improved pre-embedded iron seat type large height adjustment fastener device as described in any one of claims 1 to 8, and two specially made pre-embedded iron seats (11) of the improved pre-embedded iron seat type large height adjustment fastener device are pre-embedded in the concrete switch sleeper (1) and are located outside the two ends of the iron pad (2) along the direction perpendicular to the rail, and the gauge blocks (8) of the two improved pre-embedded iron seat type large height adjustment fastener devices respectively cooperate with the two ends of the iron pad (2) along the direction perpendicular to the rail to press the iron pad (2) to the concrete switch sleeper (1).

10. The improved pre-buried iron seat type large height adjustment fastener system according to claim 9 is characterized in that: The rounded corner sizes of the two ends of the iron pad (2) in the direction perpendicular to the rail, the rounded corner sizes of the rail limbs of the rail (3), and the rounded corner sizes of the gauge block (8) are all the same.

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