Limiting boss elastic buffer cushion layer for ballastless track

Abstract

The invention discloses a limiting boss elastic buffer cushion layer for a ballastless track, and relates to the technical field of the track traffic equipment industry, the limiting boss elastic buffer cushion layer comprises a lower flanging structure, a lower structure and an upper structure, the lower flanging structure is arranged on the outer edge of the bottom of the lower structure, and a clamping structure is arranged between the upper structure and the lower structure; the alignment mechanism is used for aligning the upper structure and the lower structure; the detection mechanism is used for detecting whether the upper structure and the lower structure are aligned or not; after the limiting boss elastic buffer cushion layer is pre-embedded into a prefabricated slab mold, after the under-slab filling layer is poured and the mold removal strength is achieved, the upper structure of the limiting boss buffer cushion layer is removed, and sealing treatment is conducted on the lower structure of the limiting boss buffer cushion layer through sealant after the upper structure is removed; the peripheral wall of the lower structure is designed to be provided with edges. In the use process of the limiting boss buffer cushion layer, after the top is crushed or gaps are formed, the sealant on the top is directly removed, and the sealant is injected again, so that the later maintenance and operation cost is remarkably reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rail transit equipment industry, and in particular to an elastic buffering pad for a limiting boss of a ballastless track. Background Art

[0002] At present, the prefabricated ballastless track structure has been widely used in rail transit projects in various parts of my country because of its advantages over the cast-in-place pillow-type ballastless track structure, such as convenient construction, short construction period, low maintenance and repair difficulty, and easy construction quality control. The prefabricated ballastless track structure includes a plate-shaped track plate, and a limited through hole is opened in the middle of the track plate. By opening the limited through hole, not only can the filling layer under the bottom plate of the ballastless track be poured, but also a limiting protrusion can be formed between the filling layer under the plate and the track plate to complete the horizontal and vertical limiting of the track plate. The limiting boss buffer layer can realize reliable elastic buffering when the force is transmitted between the cast-in-place limiting boss and the track plate when the track plate is set, improve the stability of the force transmission between the track plate and the limiting boss, extend the service life of the track plate after setting, and reduce the maintenance and repair cost of the ballastless track structure, which has good practical value.

[0003] The traditional limit boss buffer layer is processed into an integrated type in the factory, with a height consistent with the thickness of the precast panel, and is connected to the precast panel as a whole by pre-embedded method when the precast panel is cast. As the line is put into operation, problems such as gap separation, aging and water accumulation between the limit boss buffer layer and the precast panel and the limit boss are gradually exposed, causing difficulties in later maintenance. Therefore, it is necessary to optimize the limit boss buffer layer solution. Summary of the invention

[0004] In order to improve the problem of gaps between the limiting boss buffer layer and the precast plate and the limiting boss, which affects the limiting effect of the limiting boss on the precast plate, the present application provides an elastic buffer layer for a limiting boss on a ballastless track.

[0005] The present application provides an elastic buffer layer of a limiting boss for a ballastless track, which adopts the following technical solution: A limit boss elastic buffer layer for ballastless track, comprising a lower flange structure, a lower structure and an upper structure, wherein the lower flange structure is arranged at the outer edge of the bottom of the lower structure, and a clamping structure is arranged between the upper structure and the lower structure; Also included is an alignment mechanism for aligning the upper structure with the lower structure and a detection mechanism for detecting whether the upper structure is aligned with the lower structure; After the elastic buffer layer of the limiting boss is embedded in the prefabricated board mold, the upper structure of the limiting boss buffer layer is removed after the filling layer under the board is poured and reaches the demolding strength. After removal, the lower structure is sealed with sealant; the outer peripheral wall of the lower structure adopts an ridged design.

[0006] Optionally, the clamping structure includes a connecting ring and a vertical spherical ring, the vertical spherical ring is fixed at the bottom of the connecting ring, the connecting ring is connected to the bottom of the upper structure, the top of the lower structure is provided with a connecting groove and a spherical groove provided at the bottom of the connecting groove, the connecting ring is adapted to the connecting groove, and the vertical spherical ring is adapted to the spherical groove.

[0007] Optionally, the clamping structure includes a vertical ring and a transverse spherical ring, the vertical spherical ring is fixed on the inner wall of the upper structure, the transverse spherical ring is arranged on the side wall of the vertical ring, and the lower structure is provided with a vertical groove adapted to the vertical ring and a transverse spherical groove adapted to the transverse spherical ring.

[0008] Optionally, the clamping structure includes an inner ring and an outer ring, both of which are provided with chamfers, and the inner ring and the outer ring are distributed on the upper structure from inside to outside, and the lower structure is provided with an inner groove adapted to the inner ring and an outer groove adapted to the outer ring, and the lowest position of the inner ring is lower than the lowest position of the outer ring.

[0009] Optionally, the alignment mechanism includes a fixing component connected to the inner wall of the lower structure, a center rod arranged on the fixing component, a plurality of alignment rods elastically arranged on the alignment frame, and an identification component for identifying whether the plurality of upper structures are aligned, and the detection mechanism is also arranged on the alignment rod; the alignment rod is horizontally arranged, and the extension lines of the plurality of alignment rods are compared to the center position of the cross-section of the lower structure, and the center rod is located at the center of the cross-section of the lower structure.

[0010] Optionally, the identification assembly includes a detection rod slidably arranged in the center rod, a plurality of plug-in rods corresponding to the alignment rod, a first spring, a second spring and a plurality of first electromagnets corresponding to the alignment rod, the center rod is provided with a center hole for movement of the detection rod, the two ends of the first spring are respectively fixedly connected to the bottom end of the detection rod and the bottom inner wall of the center hole, the side wall of the detection rod is provided with a plug-in groove for movement of the plug-in rod, the two ends of the second spring are respectively fixedly connected to one end of the plug-in rod and the bottom inner wall of the plug-in groove, a plurality of extension lines of the plug-in rods also intersect with the center axis of the center rod, the center rod is provided with a side hole, the alignment rod slides in the side hole, the side hole is aligned with the plug-in groove, the detection rod is plugged in the plug-in groove, the side wall of the side hole is provided with a mounting hole, the first electromagnet is installed in the mounting hole, and the first electromagnet adsorbs the alignment rod.

[0011] Optionally, the detection mechanism includes a cross bar hingedly arranged on the side wall of the detection rod, a second electromagnet, a test assembly arranged on the cross bar, and a review assembly for reviewing the results of the test assembly; the detection rod includes a bottom bar and a rotating rod, the bottom bar is connected to the first spring, the rotating rod is rotatably connected to the bottom bar, the bottom bar is provided with a rotating motor for controlling the rotation of the rotating rod, the cross bar has a telescopic function, the center hole is provided with an avoidance groove, the second electromagnet is installed in the avoidance groove and is used to adsorb the bottom bar.

[0012] Optionally, the test assembly includes a test needle elastically set on the cross bar, a test rod fixedly connected to the tail end of the test needle, and a trigger part that identifies the movement of the test rod, the tip of the test needle abuts against the top of the upper structure, the test rod is horizontally set and moves in the vertical direction following the test needle.

[0013] Optionally, the trigger part includes two batteries, two display lights, two trigger pieces, two wires and two light sensors, the two trigger pieces are fixedly connected to the two sides of the test rod along the vertical direction, the display lights are respectively located on the upper and lower sides of the test rod, one end of the wire is connected to the lamp holder of the display light, and the other end is connected to the trigger piece, and the display light lights up after the trigger piece contacts the negative pole of the battery.

[0014] Optionally, the review mechanism includes a marking pen fixedly connected to the side wall of the test needle, a marking paper movably arranged on the cross bar, a trigger pen and an electric push rod for controlling the movement of the trigger pen, the movement direction of the trigger pen is perpendicular to the movement direction of the marking paper, the marking pen and the trigger pen are distributed along the vertical direction, and the marking pen is perpendicular to the plane where the marking paper is located.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The elastic cushion layer of the limit boss can effectively prevent the phenomenon of separation during use; when the top of the limit boss cushion layer is crushed or separated during use, the top sealant can be directly removed and replaced; the limit boss cushion layer is easy to maintain in the later stage, and only needs to check whether the sealant has cracks, etc.; the limit boss cushion layer can save the later maintenance and operation costs; the limit boss cushion layer can save transportation costs and improve transportation capacity compared with the traditional integrated limit boss cushion layer; 2. In the initial state, the first spring is in a compressed state, at which time the plug-in rod is located in the plug-in slot, and at this time the second spring is also in a compressed state. After the first electromagnet is energized, it adsorbs the alignment rod. At this time, the movement of the detection rod is restricted by the alignment rod. When it is necessary to detect whether the upper structure and the lower structure are aligned, the first electromagnet is powered off. Under the elastic force of the second spring, the plug-in rod moves toward the side hole, and the alignment rod also moves toward the inner wall of the upper structure. If the upper structure is not aligned, there must be at least one alignment rod abutting against the inner wall of the upper structure and the second alignment rod is not aligned. The spring is not in its original shape. At this time, the corresponding alignment rod is located in the plug-in slot. At this time, the movement of the detection rod in the vertical direction is restricted. Only when the upper structure and the lower structure are fully aligned, the two alignment rods just move to the position of abutting against the inner wall of the upper structure, and the alignment rod is located in the side hole and the plug-in rod is just located in the plug-in slot. At this time, the detection rod slides out of the center rod under the elastic force of the first spring. At this time, the alignment of the upper structure and the lower structure can be marked, and whether the subsequent upper structure and the lower structure are fully embedded can also be detected; 3. When the optical sensor recognizes the light, it is necessary to control the electric push rod to move immediately, and the lift rod will trigger the pen to move toward the marking paper, and mark the position here; and during the rotation of the horizontal bar, the winding roller also controls the movement of the marking paper, so the marking pen leaves a line state on the marking paper, but the difference is that it marks the ups and downs of the top of the upper structure through the ups and downs of the lines. Therefore, even if the initial position is higher than other positions, by looking at the line trend on the marking paper, it can be clearly seen that only the initial position is high, and the lines of other positions are all below the lines of the initial position. Therefore, in this embodiment, the ups and downs of the lines on the marking paper can be combined to indicate the state indicated by the display light, and the state of the trigger pen can also be observed, and the position where the position change occurs can also be clearly known, which is also conducive to the staff to quickly pass through the line state and see which positions of the upper structure are not well fitted with the lower structure. . BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2This is a schematic diagram of a first embodiment of the clamping structure in the embodiment of the present application; Figure 3 This is a schematic diagram of a second embodiment of the clamping structure in the embodiment of the present application; Figure 4 This is a schematic diagram of a third embodiment of the clamping structure in the embodiments of the present application; Figure 5 is a schematic diagram of a detection mechanism and an alignment mechanism in an embodiment of the present application; Figure 6 is a schematic diagram of a detection mechanism in an embodiment of the present application; Figure 7 It is a schematic diagram of a marking pen, marking paper and a winding roller in an embodiment of the present application.

[0017] Figure numerals: 1, upper structure; 2, lower structure; 3, lower flange structure; 4, connecting ring; 5, vertical spherical ring; 6, connecting groove; 7, vertical spherical groove; 8, vertical ring; 9, transverse spherical ring; 10, vertical groove; 11, transverse spherical groove; 12, inner ring; 13, outer ring; 14, inner groove; 15, outer groove; 16, center rod; 17, alignment rod; 18, detection rod; 19, plug-in rod; 20, first spring; 21, second spring; 22, first electromagnet; 23 , center hole; 24, plug-in slot; 25, side hole; 26, cross bar; 27, second electromagnet; 28, bottom bar; 29, rotating rod; 30, rotating motor; 31, battery; 32, display light; 33, trigger sheet; 34, wire; 35, light sensor; 36, test needle; 37, test rod; 38, third spring; 39, marking paper; 40, marking pen; 41, electric push rod; 42, trigger pen; 43, winding roller; 44, fixing rod; 45, threaded sleeve; 46, thread. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-7 This application is described in further detail.

[0019] The embodiment of the present application discloses an elastic buffer layer of a limiting boss for a ballastless track. Figure 1-Figure 4A limit boss elastic buffer layer for ballastless track comprises a lower flange structure 3, a lower structure 2 and an upper structure 1. The lower flange structure 3 is arranged at the outer edge of the bottom of the lower structure 2. A clamping structure is arranged between the upper structure 1 and the lower structure 2. In this embodiment, the outer edge is used to strengthen the connection strength with the prefabricated board. The lower structure 2 is processed into a sheet structure in the factory, transported to the prefabricated board factory, and rolled on site in the prefabricated board factory. The upper structure 1 is directly processed into a cylindrical structure in the factory. The two are nested and combined in the prefabricated board factory. Of course, the upper The cross-sections of the structure 1 and the lower structure 2 can be set to a variety of shapes, such as square and elliptical; before the casting of the precast panel, the upper and lower parts of the plug-in structure are nested and combined into a whole, and embedded in the precast panel mold. After the filling layer under the panel is cast and reaches the demolding strength, the top structure of the limiting boss buffer layer is removed, and after removal, it is sealed with sealant; the outer peripheral wall of the lower structure adopts an ridged design, which is convenient for embedding the limiting boss elastic buffer layer into the precast panel through the ridge structure during the production process of the precast panel, which is more reliable than the gluing method.

[0020] The clamping structure includes a connecting ring 4 and a vertical spherical ring 5. The vertical spherical ring 5 is fixed at the bottom of the connecting ring 4. The connecting ring 4 is connected to the bottom of the upper structure 1. The top of the lower structure 2 is provided with a connecting groove 6 and a spherical groove provided at the bottom of the connecting groove 6. The connecting ring 4 is adapted to the connecting groove 6, and the vertical spherical ring 5 is adapted to the spherical groove. During installation, the upper structure 1 and the lower structure 2 are first aligned, and the spherical ring is located at the opening of the connecting groove 6. At this time, a force is applied to the upper structure 1, and the spherical ring squeezes and deforms the connecting groove 6 and enters the spherical groove, thereby completing the nesting of the upper structure 1 and the lower structure 2.

[0021] Of course, in another embodiment, the clamping structure can also include a vertical ring 8 and a transverse spherical ring 9. The vertical spherical ring is fixed on the inner wall of the upper structure 1, and the transverse spherical ring 9 is arranged on the side wall of the vertical ring 8. The lower structure 2 is provided with a vertical groove 10 adapted to the vertical ring 8 and a transverse spherical groove 11 adapted to the transverse spherical ring 9. After aligning the upper structure 1 and the lower structure 2, a force is applied to the upper structure 1 at this time, and the upper structure 1 moves toward the vertical groove 10 with the transverse spherical ring 9. Under the influence of the transverse spherical ring 9, the vertical ring 8 turns outward until the transverse spherical ring 9 moves to the position of the transverse spherical groove 11, and the transverse spherical ring 9 moves into the transverse spherical groove 11, thereby completing the nesting effect of the upper structure 1 and the lower structure 2.

[0022] Reference Figure 1-Figure 4In another embodiment, the clamping structure may further include an inner ring 12 and an outer ring 13, both of which are provided with chamfers, and the inner ring 12 and the outer ring 13 are distributed on the upper structure 1 from the inside to the outside, and the lower structure 2 is provided with an inner groove 14 adapted to the inner ring 12 and an outer groove 15 adapted to the outer ring 13, and the lowest position of the inner ring 12 is lower than the lowest position of the outer ring 13. After the inner ring 12 is aligned with the inner groove 14 and the outer ring 13 is aligned with the outer groove 15, chloroprene rubber or other adhesives are used for bonding to complete the nesting effect of the upper structure 1 and the lower structure 2.

[0023] Reference Figure 1-Figure 4 , the upper structure 1 and the lower structure 2 of the limiting boss buffer layer are processed and formed, and the upper and lower structures 2 can be transported separately or assembled into an integrated transportation; the prefabricated board factory assembles the limiting boss buffer layer and embeds it before pouring the prefabricated board; the prefabricated board is transported to the construction site for installation; after the prefabricated board is installed in place, the filling layer under the board is poured; after the filling layer under the board meets the demolding requirements, the filling layer under the board in this embodiment can be cast with self-compacting concrete, and the upper structure 1 of the limiting boss buffer layer is removed; it is filled with sealant; after the above operations, the gap separation phenomenon during use can be effectively prevented; the limiting boss buffer layer can directly remove and replace the top sealant after the top is crushed or separated during use; the limiting boss buffer layer is convenient for later maintenance, and only needs to check whether the sealant has cracks, etc.; the limiting boss buffer layer can save later maintenance and operating costs; the limiting boss buffer layer can save transportation costs and improve transportation capacity compared with the traditional integrated limiting boss buffer layer.

[0024] Reference Figure 5-Figure 7 The elastic buffer layer of the limiting boss also includes an alignment mechanism for aligning the upper structure 1 with the lower structure 2 and a detection mechanism for detecting whether the upper structure 1 is aligned with the lower structure 2; the alignment mechanism includes a fixing component connected to the inner wall of the lower structure 2, a center rod 16 arranged on the fixing component, a plurality of alignment rods 17 elastically arranged on the alignment frame, and an identification component for identifying whether the plurality of upper structures 1 are aligned, and the detection mechanism is also arranged on the alignment frame; first, the center rod 16 is fixed in the lower structure 2 by the fixing component, and the center rod 16 is located at the center of the cross section of the lower structure 2, and the detection structure is also arranged on the alignment rod 17, the alignment rod 17 is horizontally arranged, and the extension lines of the plurality of alignment rods 17 are relative to the center position of the cross section of the lower structure 2. In this embodiment, two or three alignment rods 17 can be selected, preferably two, and the angle between the other two alignment rods 17 can be 90° / 180° / 270°. In this embodiment, 180° is used as an example, and the two alignment rods 17 are symmetrically arranged relative to the central axis of the center rod 16.

[0025] The fixing assembly includes a fixing rod 44, a threaded sleeve 45 and a threaded rod 46. The lower structure 2 may be provided with a notch on its inner wall for the fixing rod 44 and the threaded rod 46 to abut against each other. Of course, it may not be provided. However, during the positioning process, the fixing rod 44 and the threaded rod 46 need to be kept in a horizontal position. The fixing rod 44 is fixedly connected to one end of the threaded sleeve 45, and the other end of the threaded sleeve 45 is open. The threaded rod 46 is connected to the threaded sleeve 45 and the threaded rod 46. When installing, the fixing rod 44 is inserted into the threaded sleeve 45. Inserted into one of the notches, the threaded rod 46 is rotated at this time and slowly moved away from the threaded sleeve 45 until one end of the threaded rod 46 is inserted into the other notch, and the threaded rod 46 needs to be continuously turned so that the fixing rod 44 and the notch as well as the threaded rod 46 and the corresponding notch are all pressed tightly, and then under the friction between the threaded rod 46 and the fixing rod 44 and the inner wall of the lower structure 2, the center rod 16 is fixed, and the straight line where the fixing rod 44 and the threaded rod 46 are located is the diameter of the corresponding horizontal section of the lower structure 2.

[0026] The identification assembly includes a detection rod 18 slidably arranged in the center rod 16, a plurality of plug-in rods 19 corresponding to the alignment rod 17, a first spring 20, a second spring 21, and a plurality of first electromagnets 22 corresponding to the alignment rod 17. The center rod 16 is provided with a center hole 23 for the movement of the detection rod 18. The two ends of the first spring 20 are respectively fixedly connected to the bottom end of the detection rod 18 and the bottom inner wall of the center hole 23. The elastic force of the first spring 20 is much greater than the gravity of the center rod 16. The side wall of the detection rod 18 is provided with a plug-in groove 24 for the movement of the plug-in rod 19. The two ends of the second spring 21 are respectively fixedly connected to the bottom end of the plug-in slot 24 and one end of the plug-in rod 19, thereby realizing the elastic connection effect between the plug-in rod 19 and the plug-in slot 24. The extension lines of multiple plug-in rods 19 are also compared to the central axis of the center rod 16. The center rod 16 is provided with a side hole 25. The alignment rod 17 slides in the side hole 25. The side hole 25 is aligned with the plug-in slot 24. The detection rod 18 is plugged into the plug-in slot 24. The inner wall of the side hole 25 is provided with a mounting hole. The first electromagnet 22 is installed in the mounting hole. The first electromagnet 22 adsorbs the detection rod 18.

[0027] In the initial state, the first spring 20 is in a compressed state, at which time the plug-in rod 19 is located in the plug-in slot 24, and the second spring 21 is also in a compressed state. After the first electromagnet 22 is energized, it adsorbs the alignment rod 17. At this time, the movement of the detection rod 18 is restricted by the alignment rod 17. When it is necessary to detect whether the upper structure 1 and the lower structure 2 are aligned, it is set in this embodiment that when the second spring 21 is in its original shape, the alignment rod 17 just moves to a position abutting against the inner wall of the lower structure 2, and in this process, the second spring 21 gradually drives the detection rod 18, and the alignment rod 17 will not be impacted to an additional distance. Therefore, after the first electromagnet 22 is powered off, under the elastic force of the second spring 21, the plug-in rod 19 moves toward the side hole 25, and the alignment rod 17 also moves toward the upper The inner wall of the structure 1 moves. If the upper structure 1 is not aligned, there must be at least one alignment rod 17 abutting against the inner wall of the upper structure 1 and the second spring 21 is not in the original shape. At this time, the corresponding alignment rod 17 is located in the plug-in groove 24. At this time, the movement of the detection rod 18 along the vertical direction is restricted. Only when the upper structure 1 and the lower structure 2 are fully aligned, the two alignment rods 17 just move to the position of abutting against the inner wall of the upper structure 1, and the alignment rod 17 is located in the side hole 25 and the plug-in rod 19 is just located in the plug-in groove 24. At this time, the detection rod 18 slides out of the center rod 16 under the elastic force of the first spring 20. At this time, the alignment of the upper structure 1 and the lower structure 2 can be marked, and whether the subsequent upper structure 1 and the lower structure 2 are fully engaged can also be detected.

[0028] Reference Figure 5-Figure 7The detection mechanism includes a cross bar 26 hingedly arranged on the side wall of the detection rod 18, a second electromagnet 27, a test component arranged on the cross bar 26, and a review component for reviewing the test component result. The detection rod 18 includes a bottom rod 28 and a rotating rod 29. The bottom rod 28 is connected to the first spring 20, and the rotating rod 29 is rotatably connected to the bottom rod 28. The bottom rod 28 is provided with an operating cavity, and the bottom rod 28 is fixedly connected with a rotating motor 30 for controlling the rotation of the rotating rod 29 in the operating cavity. The cross bar 26 has a telescopic function. In this embodiment, the cross bar 26 can be set to a plurality of rod bodies that are mutually nested, and the inner wall of the cross bar 26 can also be provided with an electric push rod 41 or a cylinder to realize the telescopic function. The specific details of the telescopic rod will not be repeated here. Structure, the side wall of the cross bar 26 is provided with a hinge groove, both ends of the hinge groove are closed, the cross bar 26 is hinged to the inner wall of the hinge groove and the axis direction of the hinge is perpendicular to the length direction of the hinge groove. When the hinge rod is rotated to a horizontal position, the side wall of the hinge rod abuts against the inner wall of the end of the hinge groove, which has the effect of limiting the swing range of the hinge rod. In the initial state, since the detection rod 18 is located in the center hole 23, the end of the cross bar 26 is also located in the center hole 23, that is, the cross bar 26 is contracted in the hinge groove in the initial state. An electromagnet can be set at the position of the end of the hinge groove. When the cross bar 26 swings to a horizontal position, the electromagnet can adsorb the cross bar 26 to ensure the stability of the cross bar 26.

[0029] The center hole 23 is provided with an avoidance groove, and the second electromagnet 27 is installed in the avoidance groove and is used to adsorb the bottom rod 28. In this embodiment, it is set that when the detection rod 18 is completely ejected from the center hole 23, the height of the cross bar 26 is higher than the top of the upper structure 1. Therefore, it is necessary to adjust the detection rod 18, that is, to squeeze the first spring 20 to adjust the position of the cross bar 26. When the adjustment is completed, the second electromagnet 27 is turned on to adsorb the bottom rod 28, so that the height position of the detection rod 18 can be locked.

[0030] The test assembly includes a test pin 36 elastically arranged on the cross bar 26, a test rod 37 fixedly connected to the tail end of the test pin 36, and a trigger part for indicating the movement of the test rod 37. The tip of the test pin 36 abuts against the top of the upper structure 1, the test rod 37 is horizontally arranged and moves along the vertical direction with the test pin 36, a through hole is arranged at the end of the cross bar 26, one end of the test pin 36 passes through the through hole, and the part of the test pin 36 located at the cross bar 26 is fixedly connected with a handle, the test pin 36 is sleeved with a third spring 38, one end of the third spring 38 is fixedly connected to the side wall of the cross bar 26, and the other end is fixedly connected to the handle to realize the elastic effect of the test pin 36. When the test pin 36 abuts against the end of the upper structure 1, the third spring 38 is in a deformed state. In this embodiment, the review assembly and the test assembly are both located in the hinge groove, that is, they can be retracted into the hinge groove following the cross bar 26.

[0031] The test rod 37 is horizontally arranged and moves along the vertical direction with the test needle 36. The trigger part includes two batteries 31, two display lights 32, two trigger pieces 33, two wires 34 and two light sensors 35. The two trigger pieces 33 are fixedly connected to the two sides of the test rod 37 along the vertical direction respectively. The display lights 32 are respectively located at the upper and lower sides of the test rod 37. One end of the wire 34 is connected to the lamp holder of the display light 32, and the other end is connected to the trigger piece 33. After the trigger piece 33 contacts the negative pole of the battery 31, the display light 32 lights up; in the initial state, the position of the test needle 36 needs to be adjusted to the test rod 37 so that the two trigger pieces 33 will not abut against the corresponding negative pole of the battery 31, and the two trigger pieces 33 are at the same distance from the negative poles of the two batteries 31. The two trigger pieces 33 move along the vertical direction, and the light sensor 35 is opposite to the corresponding display light 32. In this embodiment, the light sensor 35 or the display light 32 can be covered together to ensure that the light sensor 35 is not affected by other display lights 32.

[0032] Reference Figure 5-Figure 7 For example, when the test needle 36 abuts against the position where the upper structure 1 first contacts, it should be noted that at this time, both trigger pieces 33 are not in contact with the negative pole of the corresponding battery 31, and the distance is the same. If the initial position is not well nested, this position is higher than other positions. Therefore, when the cross bar 26 rotates, other installed positions are lower than the initial position. Therefore, the test needle 36 drives the test rod 37 to move downward, and the trigger piece 33 located below moves to contact the negative pole of the corresponding battery 31. At this time, the display light 32 located below lights up, proving that other positions are lower than the initial position. Another possibility is that the initial position is not completely nested. When it moves to a point where it is not nested at all, When the trigger sheet 33 moves to the position where the test pin 36 is moved, the position where the test pin 36 is located will also rise; of course, if the initial position has been nested, when it moves to a position where it is not nested or is not completely nested, the position will rise, and the light above will light up at this time. In addition, in this embodiment, the display light 32 will light up during the movement of the trigger sheet 33, because the distance difference between nesting and not nesting is small, so as long as the trigger sheet 33 contacts the battery 31, the corresponding display light 32 will not go out during the movement. It should be noted that only one display light 32 will light up during this process, or both display lights 32 will not light up, so the height difference between other positions and the initial position is detected at this time.

[0033] The review mechanism includes a marking pen 40 fixedly connected to the side wall of the test needle 36, a marking paper 39 movably arranged on the cross bar 26, a trigger pen 42 and an electric push rod 41 for controlling the movement of the trigger pen 42, the movement direction of the trigger pen 42 is perpendicular to the movement direction of the marking paper 39, the marking pen 40 and the trigger pen 42 are distributed along the vertical direction, the marking pen 40 is perpendicular to the plane where the marking paper 39 is located, the marking pen 40 and the test rod 37 are symmetrically arranged relative to the central axis direction of the test needle 36, two winding rollers 43 are rotatably connected to the cross bar 26, and a winding motor for controlling the rotation of the winding roller 43 is fixedly connected to the cross bar 26, the two winding motors are set at the same frequency and rotate in the same direction, the trigger pen 42 is located above the marking pen 40, and the electric push rod 41 is identified by the light sensor 35, and the light sensor 35 is connected to the electric push rod 41 through a PLC controller. When the light sensor 35 recognizes light, it is immediately required By controlling the movement of the electric push rod 41, the elevator rod will trigger the pen 42 to move toward the marking paper 39, and the position here will be marked; and during the rotation of the cross bar 26, the winding roller 43 also controls the movement of the marking paper 39, so the marking pen 40 leaves a line state on the marking paper 39, but the difference is that it marks the undulating state of the top of the upper structure 1 through the undulation of the lines. Therefore, even if the initial position is higher than other positions, by looking at the line trend on the marking paper 39, it can be clearly seen that only the initial position is high, and the lines at other positions are all below the lines at the initial position. Therefore, in this embodiment, the undulating state of the lines on the marking paper 39 can be combined to indicate the state indicated by the display light 32, and the state of the trigger pen 42 can also be observed, and the position where the position change occurs can also be clearly known, which is also conducive to the staff to quickly pass through the line state and see which positions of the upper structure 1 are not well fitted with the lower structure 2.

[0034] The implementation principle of an elastic buffer layer of a limiting boss for a ballastless track in an embodiment of the present application is as follows: the elastic buffer layer of the limiting boss can effectively prevent the phenomenon of separation during use; after the top of the limiting boss buffer layer is crushed or separated during use, the top sealant can be directly removed and replaced; the limiting boss buffer layer is convenient for later maintenance, and only needs to check whether the sealant has cracks, etc.; the limiting boss buffer layer can save later maintenance and operating costs; compared with the traditional integrated limiting boss buffer layer, the limiting boss buffer layer can save transportation costs and improve transportation capacity.

[0035] In the initial state, the first spring 20 is in a compressed state, at which time the plug-in rod 19 is located in the plug-in slot 24, and the second spring 21 is also in a compressed state. After the first electromagnet 22 is energized, it adsorbs the alignment rod 17. At this time, the movement of the detection rod 18 is restricted by the alignment rod 17. When it is necessary to detect whether the upper structure 1 and the lower structure 2 are aligned, after the first electromagnet 22 is powered off, under the elastic force of the second spring 21, the plug-in rod 19 moves toward the side hole 25, and the alignment rod 17 also moves toward the inner wall of the upper structure 1. As long as the upper structure 1 is not aligned, there must be at least one alignment rod 17 abutting against the inner wall of the upper structure 1 and the first electromagnet 22 is powered on. The second spring 21 is not in its original shape. At this time, the corresponding alignment rod 17 is located in the plug-in groove 24. At this time, the movement of the detection rod 18 in the vertical direction is restricted. Only when the upper structure 1 and the lower structure 2 are fully aligned, the two alignment rods 17 just move to the position abutting against the inner wall of the upper structure 1, and the alignment rod 17 is located in the side hole 25 and the plug-in rod 19 is just located in the plug-in groove 24. At this time, the detection rod 18 slides out of the center rod 16 under the elastic force of the first spring 20. At this time, the alignment of the upper structure 1 and the lower structure 2 can be marked, and whether the subsequent upper structure 1 and the lower structure 2 are fully engaged can also be detected.

[0036] When the test needle 36 abuts against the position where the upper structure 1 first contacts, it should be noted that at this time, both trigger pieces 33 are not in contact with the negative pole of the corresponding battery 31, and the distances are the same. If the initial position is not well nested, this position is higher than other positions. Therefore, when the cross bar 26 rotates, other installed positions are lower than the initial position. Therefore, the test needle 36 drives the test rod 37 to move downward, and the trigger piece 33 at the bottom moves to contact the negative pole of the corresponding battery 31. At this time, the display light 32 at the bottom lights up, proving that other positions are lower than the initial position. Another possibility is that the initial position is not well nested. If the battery 31 is completely nested, when it moves to a position where it is not nested at all, the position of the test pin 36 will also rise; of course, if the initial position is already nested, when it moves to a position where it is not nested or not completely nested, the position will rise, and the light above will light up. In this embodiment, the display light 32 will light up during the movement of the trigger piece 33, because the distance difference between nesting and not nesting is small. Therefore, as long as the trigger piece 33 contacts the battery 31, the corresponding display light 32 will not go out during the movement. Therefore, the height difference between other positions and the initial position will be detected at this time.

[0037] When the optical sensor 35 recognizes the light, it is necessary to immediately control the movement of the electric push rod 41, and the elevator rod will trigger the pen 42 to move toward the marking paper 39, and the position here is marked; and during the rotation of the cross bar 26, the winding roller 43 also controls the movement of the marking paper 39, so the marking pen 40 leaves a line state on the marking paper 39, but the difference is that it marks the undulating state of the top of the upper structure 1 through the undulation of the lines. Therefore, even if the initial position is higher than other positions, by looking at the line trend on the marking paper 39, it can be clearly seen that only the initial position is high, and the lines at other positions are all below the lines at the initial position. Therefore, in this embodiment, the undulating state of the lines on the marking paper 39 can be combined to indicate the state indicated by the display light 32, and the state of the trigger pen 42 can also be observed, and the position where the position change occurs can also be clearly known, which is also conducive to the staff to quickly pass through the line state and see which positions of the upper structure 1 are not well fitted with the lower structure 2.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An elastic buffer layer for a limiting boss of a ballastless track, characterized in that: It comprises a lower flange structure (3), a lower structure (2) and an upper structure (1), wherein the lower flange structure (3) is arranged at the outer edge of the bottom of the lower structure (2), and a clamping structure is arranged between the upper structure (1) and the lower structure (2); It also includes an alignment mechanism for aligning the upper structure (1) with the lower structure (2) and a detection mechanism for detecting whether the upper structure (1) and the lower structure (2) are aligned; After the elastic buffer layer of the limiting boss is embedded in the prefabricated board mold, the upper structure (1) of the limiting boss buffer layer is removed after the filling layer under the board is poured and reaches the demoulding strength. After removal, the lower structure (2) is sealed with a sealant; the outer peripheral wall of the lower structure adopts an ridged design.

2. The elastic buffer layer of the limiting boss for ballastless track according to claim 1, characterized in that: The clamping structure comprises a connecting ring (4) and a vertical spherical ring (5), wherein the vertical spherical ring (5) is fixed at the bottom of the connecting ring (4), the connecting ring (4) is connected to the bottom of the upper structure (1), the top of the lower structure (2) is provided with a connecting groove (6) and a vertical spherical groove (7) provided at the bottom of the connecting groove (6), the connecting ring (4) is adapted to the connecting groove (6), and the vertical spherical ring (5) is adapted to the vertical spherical groove (7).

3. The elastic buffer layer of the limiting boss for ballastless track according to claim 1, characterized in that: The clamping structure comprises a vertical ring (8) and a transverse spherical ring (9), wherein the vertical spherical ring is fixed on the inner wall of the upper structure (1), and the transverse spherical ring (9) is arranged on the side wall of the vertical ring (8), and the lower structure (2) is provided with a vertical groove (10) adapted to the vertical ring (8) and a transverse spherical groove (11) adapted to the transverse spherical ring (9).

4. The elastic buffer layer of the limiting boss for ballastless track according to claim 1, characterized in that: The clamping structure comprises an inner ring (12) and an outer ring (13), wherein the inner ring (12) and the outer ring (13) are both provided with chamfers, and the inner ring (12) and the outer ring (13) are distributed on the upper structure (1) from the inside to the outside, and the lower structure (2) is provided in an inner groove (14) adapted to the inner ring (12) and an outer groove (15) adapted to the outer ring (13), and the lowest position of the inner ring (12) is lower than the lowest position of the outer ring (13).

5. The elastic buffer layer of the limiting boss for ballastless track according to claim 1, characterized in that: The alignment mechanism comprises a fixing assembly connected to the inner wall of the lower structure (2), a center rod (16) arranged on the fixing assembly, a plurality of alignment rods (17) elastically arranged on the alignment frame, and an identification assembly for identifying whether the plurality of upper structures (1) are aligned, and the detection mechanism is also arranged on the alignment rod (17); the alignment rod (17) is arranged horizontally, and the extension lines of the plurality of alignment rods (17) are relative to the center position of the cross section of the lower structure (2), and the center rod (16) is located at the center of the cross section of the lower structure (2).

6. The elastic buffer layer of the limiting boss for ballastless track according to claim 5, characterized in that: The identification component comprises a detection rod (18) slidably arranged in the center rod (16), a plurality of plug-in rods (19) corresponding to the alignment rod (17), a first spring (20), a second spring (21) and a plurality of first electromagnets (22) corresponding to the alignment rod (17); the center rod (16) is provided with a center hole (23) for movement of the detection rod (18); the two ends of the first spring (20) are respectively fixedly connected to the bottom end of the detection rod (18) and the bottom inner wall of the center hole (23); the side wall of the detection rod (18) is provided with a plug-in groove (24) for movement of the plug-in rod (19); the second spring (21) is provided with a first electromagnet (22) for movement of the plug-in rod (19); The two ends of the plug-in rod (21) are respectively fixedly connected to one end of the plug-in rod (19) and the inner wall of the bottom end of the plug-in slot (24); the extension lines of the multiple plug-in rods (19) also intersect with the central axis of the center rod (16); the center rod (16) is provided with a side hole (25); the alignment rod (17) slides in the side hole (25); the side hole (25) is aligned with the plug-in slot (24); the detection rod (18) is plugged into the plug-in slot (24); the side wall of the side hole (25) is provided with a mounting hole; the first electromagnet (22) is installed in the mounting hole; the first electromagnet (22) adsorbs the alignment rod (17).

7. The elastic buffer layer of the limiting boss for ballastless track according to claim 5, characterized in that: The detection mechanism comprises a cross bar (26) hingedly arranged on the side wall of the detection rod (18), a second electromagnet (27), a test assembly arranged on the cross bar (26), and a review assembly for reviewing the test assembly result; the detection rod (18) comprises a bottom bar (28) and a rotating rod (29); the bottom bar (28) is connected to the first spring (20); the rotating rod (29) is rotatably connected to the bottom bar (28); the bottom bar (28) is provided with a rotating motor (30) for controlling the rotation of the rotating rod (29); the cross bar (26) has a telescopic function; the center hole (23) is provided with an avoidance groove; the second electromagnet (27) is installed in the avoidance groove and is used to adsorb the bottom bar (28).

8. The elastic buffer layer of the limiting boss for ballastless track according to claim 7, characterized in that: The test assembly comprises a test needle (36) elastically arranged on the cross bar (26), a test rod (37) fixedly connected to the tail end of the test needle (36), and a trigger portion for identifying the movement of the test rod (37); the tip of the test needle (36) abuts against the top of the upper structure (1); the test rod (37) is arranged horizontally and moves along the vertical direction following the test needle (36).

9. The elastic buffer layer of the limiting boss for ballastless track according to claim 8, characterized in that: The triggering part comprises two batteries (31), two display lights (32), two triggering sheets (33), two wires (34) and two light sensors (35); the two triggering sheets (33) are respectively fixedly connected to the two sides of the test rod (37) along the vertical direction; the display lights (32) are respectively located on the upper and lower sides of the test rod (37); one end of the wire (34) is connected to the lamp holder of the display light (32), and the other end is connected to the triggering sheet (33); the display light (32) lights up when the triggering sheet (33) contacts the negative electrode of the battery (31).

10. The elastic buffer layer of the limiting boss for ballastless track according to claim 9, characterized in that: The review mechanism comprises a marking pen (40) fixedly connected to the side wall of the test needle (36), a marking paper (39) movably arranged on the cross bar (26), a trigger pen (42) and an electric push rod (41) for controlling the movement of the trigger pen (42), wherein the movement direction of the trigger pen (42) is perpendicular to the movement direction of the marking paper (39), the marking pen (40) and the trigger pen (42) are distributed along the vertical direction, and the marking pen (40) is perpendicular to the plane where the marking paper (39) is located.

Images