movable heart fork

Abstract

The application relates to the field of railway track structures, and discloses a movable center frog, wherein the movable center frog comprises a wing rail assembly, the wing rail assembly comprises a first wing rail and a second wing rail, the first wing rail and the second wing rail are arranged at intervals along a first direction; a center rail is located in a frog wheel groove; a driving assembly is used for driving the center rail to move in the frog wheel groove along the first direction, and the tip part of the center rail is combined with the first wing rail or the second wing rail to change a train running track; a self-locking piece is located between the driving assembly and the wing rail assembly, when the tip part of the center rail is combined with the first wing rail or the second wing rail, the self-locking piece is used for locking the relative position between the tip part of the center rail and the first wing rail or the second wing rail, so that the tip part of the center rail and the first wing rail or the second wing rail are prevented from being separated. The application provides a movable center frog which can keep the relative position between the tip part of the center rail and the first wing rail or the second wing rail.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway track structure, in particular to a movable heart frog. BACKGROUND

[0002] The railway turnout is mainly composed of a switch machine and a frog, and the frog is divided into a fixed frog and a movable heart frog. The movable heart frog keeps the frog track continuous through the movable heart rail, which fundamentally eliminates the harmful space existing in the fixed frog and ensures the smooth transition of the train wheel from one rail to another.

[0003] The relative position between the existing heart rail and the wing rail is prone to move, which leads to the phenomenon that the tip of the heart rail and the wing rail are easily forked, and further leads to the situation that the tip of the heart rail is pierced by the wheel or the wheel jumps over the heart rail and causes derailment. SUMMARY

[0004] The present application mainly solves the technical problem that the relative position between the existing heart rail and the wing rail is prone to move, which leads to the phenomenon that the tip of the heart rail and the wing rail are easily forked. A movable heart frog is provided, which keeps the relative position between the tip of the heart rail and the first wing rail or the second wing rail.

[0005] In order to solve the above technical problem, the present application provides a movable heart frog, characterized in that the movable heart frog comprises,

[0006] a wing rail assembly, the wing rail assembly comprises a first wing rail and a second wing rail, the first wing rail and the second wing rail are arranged in a spaced manner along a first direction and form a frog rim groove between the first wing rail and the second wing rail;

[0007] a heart rail, the heart rail is located in the frog rim groove, and the top of the heart rail along a second direction has a tip;

[0008] a driving assembly, the driving assembly is used to drive the heart rail to move in the frog rim groove along the first direction and realize the abutment of the tip of the heart rail and the first wing rail or the second wing rail, so as to change the train running track;

[0009] a self-locking piece, the self-locking piece is located between the driving assembly and the wing rail assembly, and when the tip of the heart rail abuts against the first wing rail or the second wing rail, the self-locking piece is used to lock the relative position between the tip of the heart rail and the first wing rail or the second wing rail, so as to prevent the tip of the heart rail and the first wing rail or the second wing rail from being forked.

[0010] In an embodiment, the center rail has a first height in the second direction, the first wing rail or the second wing rail has a second height in the second direction, the first height is less than the second height, the center rail is located in the frog nose slot, the center rail has a first length in a third direction, the bottom of the center rail in the second direction has a matching surface, and the matching surface is in a circular arc structure.

[0011] In an embodiment, the driving assembly comprises,

[0012] a middle piece, the middle piece comprises a first middle part and a second middle part arranged in sequence in the second direction, the first middle part is connected with the second middle part, the first middle part is located in the frog nose slot, the second middle part is located at the bottom of the first wing rail and the second wing rail, the first middle part is provided with a receiving groove in a third direction, the receiving groove has a first opening towards a side of the center rail, and the center rail is located in the receiving groove;

[0013] a driving rod, the driving rod is arranged in the first direction, the driving rod cooperates with the second middle part, and the driving rod is used to drive the second middle part to move in the first direction.

[0014] In an embodiment, a cross section of the receiving groove in the second direction is in a circular arc structure, and the matching surface of the center rail cooperates with the receiving groove to form a surface contact in the third direction.

[0015] In an embodiment, the second middle part is provided with a first driving groove in the third direction, the first driving groove has a second opening towards a side of the driving rod, the first driving groove is provided with two, and the two first driving grooves are arranged in sequence and spaced apart in the first direction;

[0016] the driving rod is provided with a first driving block towards a side of the second middle part, the first driving block is provided with two, the two first driving blocks are arranged in sequence and spaced apart in the first direction, and the two first driving blocks extend towards the second middle part; wherein,

[0017] under the movement of the driving rod, the first driving block cooperates with the first driving groove to form a surface contact in the first direction, so as to further drive the second middle part to move in the first direction.

[0018] In an embodiment, the first driving groove has a first driving surface away from the first middle part in the first direction, the first driving block has a second driving surface away from the first middle part in the first direction, and under the movement of the driving rod, the first driving surface cooperates with the second driving surface to drive the second middle part to move in the first direction.

[0019] In an embodiment, the movable heart-shaped yoke comprises,

[0020] The connecting assembly comprises a first connecting member and a second connecting member, the first connecting member and the second connecting member are arranged in the first direction and form a first spacing space between the first connecting member and the second connecting member, the first connecting member and the second connecting member are respectively arranged on both sides of the wing rail assembly in the second direction, the first connecting member and the second connecting member each comprise a first connecting portion and a second connecting portion arranged in the second direction in sequence, the first connecting portion is connected with the wing rail assembly, the second connecting portion is provided with a first through hole in the first direction, the first through hole is connected with the first spacing space to form a movement space, the second intermediate portion and the driving rod are arranged to move in the movement space.

[0021] In an embodiment, the movable heart-shaped yoke further comprises,

[0022] The first limiting member is fixedly connected with the first connecting portion, the first limiting member is arranged on the side of the first connecting portion close to the driving rod in the second direction, the first limiting member is provided with a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are arranged towards the second intermediate portion, the first limiting surface and the second limiting surface intersect and form a first limiting angle.

[0023] In an embodiment, the self-locking member comprises,

[0024] The third limiting surface is arranged at the bottom of the second intermediate portion in the second direction, the third limiting surface is arranged towards the first driving block, the third limiting surface is arranged on one side of the first driving groove in the first direction, the third limiting surface is arranged corresponding to the first driving surface, and the third limiting surface intersects with the first driving surface.

[0025] The fourth limiting surface is arranged at the top of the first driving block in the second direction, the fourth limiting surface is arranged towards the second intermediate portion, the fourth limiting surface is arranged corresponding to the second driving surface, and the fourth limiting surface intersects with the second driving surface.

[0026] The second intermediate portion is provided with a first limiting slot in the third direction, the first limiting slot is provided on the side of the second intermediate portion close to the first limiting member in the second direction, the first limiting slot is provided with a third opening on the side close to the first limiting member, the first limiting slot is composed of a fifth limiting surface and a sixth limiting surface, the fifth limiting surface and the sixth limiting surface are both provided on the side close to the first limiting member, the fifth limiting surface intersects with the sixth limiting surface to form a second limiting angle; wherein, under the relative movement between the intermediate member and the driving rod, the movable heart rail fork includes a first state and a second state,

[0027] In the first state, the driving rod moves in the first direction, the first driving surface abuts against the second driving surface to drive the tip portion of the heart rail to move close to the wing rail assembly until the tip portion of the heart rail abuts against the first wing rail or the second wing rail;

[0028] In the second state, on the basis of the first state, the driving rod further moves in the first direction, the first driving surface is misaligned with the second driving surface, the driving rod drives the intermediate member to rotate around the heart rail, and the third limiting surface abuts against the fourth limiting surface, the first limiting surface abuts against the fifth limiting surface to form the limiting of the intermediate member in the second direction, and the second limiting surface abuts against the sixth limiting surface to form the limiting of the intermediate member in the first direction.

[0029] In an implementation manner, the movable heart rail fork includes,

[0030] A buffer member is located in the first through hole, and the buffer member is located at the bottom of the first through hole in the second direction, and during the movement of the driving rod in the first direction, the bottom of the driving rod in the second direction forms a sliding contact with the buffer member.

[0031] Compared with the prior art, when the tip portion of the heart rail abuts against the first wing rail or the second wing rail, the self-locking member is used to lock the relative position between the tip portion of the heart rail and the first wing rail and the second wing rail, so as to prevent the tip portion of the heart rail from being diverged from the first wing rail or the second wing rail, and further prevent the situation that the wheel crosses the heart rail and causes the derailment accident. BRIEF DESCRIPTION OF DRAWINGS

[0032] FIG. 1 is a structural schematic diagram of a wing rail and a heart rail in the prior art; Figure 1 FIG. 2 is a structural schematic diagram of a heart rail in the prior art;

[0033] FIG. 3 is a structural schematic diagram of a movable heart rail fork in the prior art; Figure 2 FIG. 4 is a structural schematic diagram of a movable heart rail fork in the prior art;

[0034] FIG. 5 is a structural schematic diagram of a movable heart rail fork in the prior art;Figure 3 is a structural schematic diagram of a movable point frog according to the present application;

[0035] attached Figure 4 is another structural schematic diagram of a movable point frog according to the present application;

[0036] attached Figure 5 is a structural schematic diagram of a point rail according to the present application.

[0037] Explanation of reference numerals in the drawings:

[0038] X, first direction; Y, second direction;

[0039] 10, movable point frog;

[0040] 100, wing rail assembly; 110, first wing rail; 111, first contact surface; 120, second wing rail; 130, frog rim groove; 140, second height;

[0041] 200, point rail; 210, tip portion; 220, point rail body; 230, first height; 240, mating surface;

[0042] 300, drive assembly; 310, intermediate piece; 311, first intermediate portion; 311-1, accommodation groove; 312, second intermediate portion; 312-1, first drive groove; 312-11, first drive surface; 320, drive rod; 321, first drive block; 321-1, second drive surface;

[0043] 400, self-locking piece; 410, third limit surface; 420, fourth limit surface; 430, first limit groove; 431, fifth limit surface; 432, sixth limit surface;

[0044] 500, connecting assembly; 510, first connecting piece; 511, first connecting portion; 512, second connecting portion; 512-1, first through hole; 520, second connecting piece; 530, first spacing space;

[0045] 600, first limit piece; 610, first limit surface; 620, second limit surface;

[0046] 700, buffer piece;

[0047] 20, section steel. DETAILED DESCRIPTION

[0048] In order to make the purposes, characteristics and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0049] The relative movement between the center rail and the wing rail in the prior art is relatively easy to occur, which causes the technical problem that the tip portion of the center rail is easy to form a split with the wing rail.

[0050] Therefore, the present application provides a movable center frog, wherein the movable center frog comprises,

[0051] a wing rail assembly, the wing rail assembly comprising a first wing rail and a second wing rail, the first wing rail and the second wing rail being spaced apart along a first direction and forming a frog rim slot between the first wing rail and the second wing rail;

[0052] a center rail, the center rail being located in the frog rim slot, and the top of the center rail along the second direction having a tip portion;

[0053] a driving assembly, the driving assembly being used to drive the center rail to move in the frog rim slot along the first direction and realize that the tip portion of the center rail is attached to the first wing rail or the second wing rail to change the running track of the train;

[0054] a self-locking piece, the self-locking piece being located between the driving assembly and the wing rail assembly, and when the tip portion of the center rail is attached to the first wing rail or the second wing rail, the self-locking piece is used to lock the relative position between the tip portion of the center rail and the first wing rail or the second wing rail to prevent the tip portion of the center rail from forming a split with the first wing rail or the second wing rail.

[0055] Embodiment 1:

[0056] Figure 1 is a structural schematic diagram of a wing rail and a center rail 200 in the prior art. Please refer to Figure 1. Figure 1 is a structural schematic diagram of a wing rail and a center rail 200 in the prior art. Please refer to Figure 1. Figure 1As shown, the prior art movable center frog includes a wing rail assembly 100, the wing rail assembly 100 includes a first wing rail 110 and a second wing rail 120 which are spaced apart along a first direction X, the first wing rail 110 and the second wing rail 120 have a frog nose groove therebetween, the first wing rail 110 and the second wing rail 120 have a first contact surface 111 on a side close to the frog nose groove, the first contact surface 111 is used to contact a tip portion of a center rail 200. The prior art movable center frog 10 also includes the center rail 200, the center rail 200 is located in the frog nose groove, the center rail 200 has a tip portion on a top portion along a second direction Y, the center rail 200 is driven by a drive assembly 300 to move along the first direction X in the frog nose groove to realize contact with the first contact surface 111 on the first wing rail 110 or the first contact surface 111 on the second wing rail 120. However, there is no locking device between the center rail 200 and the wing rail assembly 100, which causes the center rail 200 to still have a gap in a mistaken manner after contacting the first contact surface 111 on the first wing rail 110 or the second wing rail 120. The length of the center rail 200 along the second direction Y is longer than the length of the first wing rail 110 and the second wing rail 120 along the second direction Y, which causes the force arm about the center rail 200 to increase, and further causes the center rail 200 to still have a gap in a deflection manner after contacting the first contact surface 111 on the first wing rail 110 or the second wing rail 120,

[0057] attached Figure 2 is a structural schematic view of the prior art center rail 200. Please refer to attached Figure 2 As shown, the length of the center rail 200 along the second direction Y in the prior art is longer than the length of the wing rail assembly along the second direction Y. The center rail 200 in the prior art is usually produced by cutting a profile steel 20, and the length of the prior art profile steel 20 along the second direction Y is usually smaller than the length of the center rail 200 along the second direction Y, so that other materials need to be added to the bottom of the prior art profile steel 20 by welding, and then further cutting is needed to obtain the center rail 200 in the prior art, thereby causing the problem of difficult processing of the center rail 200 in the prior art.

[0058] Please refer to attached Figure 3 to attached Figure 5As shown, the first direction X of this application refers to the width direction of the movable center frog 10, that is, the direction of the movable center frog 10 from left to right or from right to left. In this application, the first wing rail 110 is positioned to the left of the second wing rail 120, and the second wing rail 120 is positioned to the right of the first wing rail 110. The second direction Y of this application refers to the height direction of the movable center frog 10, that is, the direction of the movable center frog 10 from top to bottom or from bottom to top. In this application, the center rail 200 is positioned above the intermediate member 310, and the intermediate member 310 is positioned below the center rail 200.

[0059] Appendix Figure 3 This is a schematic diagram of one possible structure of the movable frog 10 of this application. Figure 4 This is another structural schematic diagram of the movable center frog 10 of this application. Please refer to the attached diagram. Figure 3 and appendix Figure 4 The diagram illustrates a specific embodiment of the movable point frog 10 of this application. The movable point frog 10 of this application includes a wing rail assembly 100, which includes a first wing rail 110 and a second wing rail 120. The first wing rail 110 and the second wing rail 120 are spaced apart along a first direction X, forming a frog flange groove 130 located between the first wing rail 110 and the second wing rail 120. The frog flange groove 130 ensures that the wheel passes smoothly through the frog and guides the wheel flange to travel correctly. Both the first wing rail 110 and the second wing rail 120 are provided with a first contact surface 111, which can contact the point rail 200. The first contact surface 111 is located close to the frog flange groove 130.

[0060] Please refer to the attached document. Figure 3 and appendix Figure 4 As shown, the movable pigeon fork 10 of this application includes a pigeon rail 200. The pigeon rail 200 includes a tip portion 210 and a pigeon rail body 220 arranged sequentially along a first direction X. The tip portion 210 is located at the top of the pigeon rail body 220 along the first direction X, and the width of the tip portion 210 in the first direction X is smaller than the width of the pigeon rail body 220 in the first direction X.

[0061] In one embodiment, the center rail 200 has a first height 230 in the second direction Y, and the first wing rail 110 or the second wing rail 120 has a second height 140 in the second direction Y. The first height 230 is smaller than the second height 140, thereby reducing the lever arm length of the drive assembly 300 when driving the center rail 200 to move, and further reducing the possibility of deflection between the center rail 200 and the wing rail assembly 100. Furthermore, the center rail 200 is completely located within the frog flange groove 130. Note the accompanying drawings. Figure 2 and appendix Figure 3The middle 230 and 140 refer to the first height and the second height, not the specific numerical value of the height.

[0062] In an embodiment, the bottom of the center rail 200 along the second direction Y has a matching surface 240, which is arranged close to the intermediate piece 310 and forms a matching relationship with the intermediate piece 310. Further, the matching surface 240 is a circular arc structure.

[0063] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 It can be seen from the drawings that the movable center frog 10 of the present application comprises a driving assembly 300 for driving the center rail 200 to move along the first direction X in the frog wheel groove 130, and the center rail 200 always maintains a vertical state along the second direction Y when moving along the first direction X. After moving, the tip part 210 of the center rail 200 can be in contact with the first wing rail 110 or the second wing rail 120, so as to change the running track of the train.

[0064] The driving assembly 300 comprises an intermediate piece 310 and a driving rod 320. The intermediate piece 310 is used to place the center rail 200, and the driving rod 320 cooperates with the intermediate piece 310 to realize the driving of the driving rod 320 to drive the intermediate piece 310 to move along the first direction X.

[0065] The intermediate piece 310 includes a first intermediate part 311 and a second intermediate part 312 arranged in sequence along the second direction Y, the first intermediate part 311 and the second intermediate part 312 are divided according to different functions, the first intermediate part 311 is used for placing the center rail 200, and the second intermediate part 312 is used for realizing cooperation with the driving rod 320. Further, the first intermediate part 311 is connected with the second intermediate part 312, the width of the first intermediate part 311 in the first direction X is smaller than the width of the second intermediate part 312 in the first direction X, and the connection between the first intermediate part 311 and the second intermediate part 312 is located in the middle part of the second intermediate part 312 in the first direction X. The first intermediate part 311 is located in the frog rim groove 130, the second intermediate part 312 is located at the bottom of the first wing rail 110 and the second wing rail 120, and the first intermediate part 311 and the second intermediate part 312 are transitionally connected. The first intermediate part 311 is provided with a containing groove 311-1 along the third direction, the containing groove 311-1 penetrates through the first intermediate part 311 along the third direction, the containing groove 311-1 has a first opening on the side facing the center rail 200, and the center rail 200 enters the containing groove 311-1 through the first opening. The second intermediate part 312 is provided with a first driving groove 312-1 penetrating through along the third direction, the first driving groove 312-1 has a second opening on the side facing the driving rod 320, and the first driving block 321 on the driving rod 320 enters and exits the first driving groove 312-1 through the second opening to realize the left and right adjustment of the intermediate piece 310 along the first direction X, and the first driving groove 312-1 is provided with two, and the two first driving grooves 312-1 are arranged in sequence and spaced apart along the first direction X.

[0066] In an embodiment, the two first driving grooves 312-1 are respectively arranged on the two sides of the first intermediate part 311 along the first direction X.

[0067] In an embodiment, the cross section of the containing groove 311-1 along the second direction Y is a circular arc structure to realize the adaptation with the cooperation surface 240 of the center rail 200. Further, the cooperation surface 240 of the center rail 200 and the containing groove 311-1 form a surface contact along the third direction.

[0068] The driving rod 320 is arranged along the first direction X, and the driving rod 320 is connected with a driving component which is part of the driving assembly 300 and is used to drive the driving rod 320 to move along the first direction X. The driving rod 320 is matched with the first driving block 321 through the first driving slot 312-1, and the driving rod 320 is used to drive the second intermediate part 312 to move along the first direction X. Further, the driving rod 320 is provided with the first driving block 321 on one side of the second intermediate part 312, and the first driving block 321 is provided in two, and the two first driving blocks 321 are sequentially and spaced apart along the first direction X, and the two first driving blocks 321 extend towards the second intermediate part 312, and the first driving block 321 can enter and exit the first driving slot 312-1, and the movement relationship between the first driving slot 312-1 and the first driving block 321 will be further described in the subsequent text. When the first driving block 321 is located in the first driving slot 312-1 under the movement of the driving rod 320, the first driving block 321 and the first driving slot 312-1 form a surface contact in the first direction X, so as to further drive the second intermediate part 312 to move along the first direction X.

[0069] Further, the surface contact between the first driving block 321 and the first driving slot 312-1 is formed by the first driving surface 312-11 and the second driving surface 321-1. The first driving slot 312-1 is provided with the first driving surface 312-11 on one side of the first intermediate part 311 in the first direction X, and the first driving block 321 has the second driving surface 321-1 on one side of the first intermediate part 311 in the first direction X. The first driving surface 312-11 and the second driving surface 321-1 abut under the movement of the driving rod 320, so as to drive the second intermediate part 312 to move along the first direction X.

[0070] In the present application, the arrangement mode of the first driving surface 312-11 and the second driving surface 321-1 described above is only one specific embodiment of the present application. The arrangement mode of the first driving surface 312-11 and the second driving surface 321-1 of the present application can also be that the first driving surface 312-11 is arranged on one side of the first driving slot 312-1 close to the first intermediate part 311 in the first direction X, and the second driving surface 321-1 is arranged on one side of the first driving block 321 close to the first intermediate part 311 in the first direction X.

[0071] In an embodiment, the first driving surface 312-11 and the second driving surface 321-1 are both inclined surfaces, so as to facilitate the staggered arrangement of the first driving surface 312-11 and the second driving surface 321-1.

[0072] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4As shown, the movable heart frog 10 of the present application further comprises a connecting assembly 500, which is arranged to further connect the wing rail assembly 100 with other components. The connecting assembly 500 comprises a first connecting piece 510 and a second connecting piece 520, which are arranged along the first direction X and form a first spacing space 530 between the first connecting piece 510 and the second connecting piece 520. The first connecting piece 510 and the second connecting piece 520 are respectively arranged on two sides of the wing rail assembly 100 along the second direction Y. The first connecting piece 510 and the second connecting piece 520 each comprise a first connecting portion 511 and a second connecting portion 512 arranged along the second direction Y. The first connecting portion 511 is connected with the wing rail assembly 100, and the connection between the first connecting portion 511 and the wing rail assembly 100 is located on the side close to the frog rim groove 130 along the first direction X. The second connecting portion 512 is provided with a first through hole 512-1 along the first direction X. The first through hole 512-1 is connected with the first spacing space 530 to form a movement space. The first through hole 512-1 is located on both sides of the first spacing space 530. The second intermediate portion 312 and the driving rod 320 move in the movement space.

[0073] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 As shown, the movable heart frog 10 of the present application further comprises a first limiting piece 600, which is arranged to realize the locking of the second intermediate portion 312 along the first direction X and the second direction Y. The first limiting piece 600 is fixedly connected with the first connecting portion 511 and arranged on the side of the first connecting portion 511 close to the driving rod 320 along the second direction Y. The first limiting piece 600 is provided with a first limiting surface 610 and a second limiting surface 620, which are both arranged towards the second intermediate portion 312 to facilitate the locking relationship with the second intermediate portion 312. The first limiting surface 610 and the second limiting surface 620 intersect and form a first limiting angle.

[0074] In an embodiment, the first limiting surface 610 is partially located in the first through hole 512-1, the second limiting surface 620 is located outside the first through hole 512-1, and the first limiting angle is greater than 90°.

[0075] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 As shown, the self-locking piece 400 comprises a third limiting surface 410, a fourth limiting surface 420 and a first limiting groove 430, which can form a locking relationship.

[0076] The third limiting surface 410 is located at the bottom of the second intermediate part 312 along the second direction Y, and the third limiting surface 410 can change position relative to the driving rod 320. The third limiting surface 410 is arranged towards the first driving block 321, and the third limiting surface 410 is located at one side of the first driving groove 312-1 along the first direction X. The third limiting surface 410 is arranged corresponding to the first driving surface 312-11, and the third limiting surface 410 intersects the first driving surface 312-11. The fourth limiting surface 420 is located at the top of the first driving block 321 along the second direction Y, and the fourth limiting surface 420 is arranged towards the second intermediate part 312. The fourth limiting surface 420 is arranged corresponding to the second driving surface 321-1, and the fourth limiting surface 420 intersects the second driving surface 321-1. In this application, the fourth limiting surface 420 arranged corresponding to the second driving surface 321-1 means that the number of the fourth limiting surface 420 corresponding to the second driving surface 321-1 is consistent, and the relative position between the fourth limiting surface 420 and the second driving surface 321-1 is consistent.

[0077] The first limiting groove 430 is arranged through the second intermediate part 312 along the third direction, and the first limiting groove 430 is arranged on the side of the second intermediate part 312 close to the first limiting part 600 along the second direction Y. The first limiting groove 430 is arranged towards the side of the first limiting part 600, and the first limiting groove 430 is composed of the fifth limiting surface 431 and the sixth limiting surface 432. The fifth limiting surface 431 and the sixth limiting surface 432 are arranged towards the first limiting part 600, and the fifth limiting surface 431 intersects the sixth limiting surface 432 to form the second limiting angle.

[0078] The movable point frog 10 includes a first state and a second state under the relative movement of the intermediate part 310 and the driving rod 320. In the first state, the driving rod 320 moves along the first direction X, the first driving surface 312-11 abuts against the second driving surface 321-1 to drive the tip part 210 of the point rail 200 to move close to the wing rail assembly 100 until the tip part 210 of the point rail 200 abuts against the first wing rail 110 or the second wing rail 120. In the second state, the driving rod 320 further moves along the first direction X on the basis of the first state, the first driving surface 312-11 is dislocated from the second driving surface 321-1, the driving rod 320 drives the intermediate part 310 to rotate around the point rail 200, and the third limiting surface 410 abuts against the fourth limiting surface 420, the first limiting surface 610 abuts against the fifth limiting surface 431, thereby limiting the movement of the intermediate part 310 along the second direction Y, and the second limiting surface 620 abuts against the sixth limiting surface 432, thereby limiting the movement of the intermediate part 310 along the first direction X.

[0079] In use, first, the driving rod 320 is driven to move in the first direction X, at this time, the first driving block 321 is synchronously driven to move in the first direction X in the first driving slot 312-1 until the first driving surface 312-11 abuts against the second driving surface 321-1. Then, the driving rod 320 is further driven to move in the first direction X, at the same time, the tip portion 210 of the center rail 200 moves close to the first contact surface 111 of the first wing rail 110 or the second wing rail 120 until the tip portion 210 of the center rail 200 abuts against the first contact surface 111 of the first wing rail 110 or the second wing rail 120, thereby forming the first state of the movable center frog 10, although at this time, the tip portion 210 of the center rail 200 and the first contact surface 111 have no gap, but the gap can be caused by other reasons. On the basis of the movable center frog 10 in the first state, the driving rod 320 is driven to move in the first direction X, at this time, the tip portion 210 of the center rail 200 abuts against the first contact surface 111, and the accommodating slot 311-1 and the matching surface 240 are circular structures matched with each other, so that under the driving of the driving rod 320, the first driving surface 312-11 and the second driving surface 321-1 are misaligned, the fourth limiting surface 420 on the side of the movement direction moves to the bottom of the third limiting surface 410, at the same time, the fifth limiting surface 431 abuts against the first limiting surface 610, thereby ensuring the second intermediate portion 312 between the first limiting surface 610 and the fourth limiting surface 420 which are limiting surfaces of the second intermediate portion 312, so as to form the limiting of the second intermediate portion 312 in the second direction Y. At this time, the sixth limiting surface 432 abuts against the second limiting surface 620, so as to form the limiting of the second intermediate portion 312 in the first direction X, thereby ensuring the relative fixation of the second intermediate portion 312, so as to reduce the possibility of the gap between the tip portion 210 of the center rail 200 and the first contact surface 111. At this time, the driving rod 320 is in the limit position in the first direction X, and cannot be further continuously moved in one direction, but if it is needed to release the locking of the second intermediate portion 312, the driving rod 320 needs to be reversely driven to move, when the driving force is too large, the sixth limiting surface 432 and the second limiting surface 620 are separated from each other, and at the same time, the third limiting surface 410 moves to the bottom of the fourth limiting surface 420.

[0080] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 It is shown that the movable center frog 10 of the present application comprises a buffer 700 made of rubber material, so as to reduce the friction between the driving rod 320 and the connecting assembly 500, the buffer 700 is located at the bottom of the first through hole 512-1 in the second direction Y, and during the movement of the driving rod 320 in the first direction X, the bottom of the driving rod 320 in the second direction Y and the buffer 700 form sliding contact.

[0081] The accompanying drawings Figure 5 is a structural schematic view of the center rail 200 of the present application. Please refer to the accompanying drawings Figure 5As shown, after the height of the heart rail 200 in the second direction Y is shortened, the height of the heart rail 200 in the second direction Y is smaller than the height of the profile steel 20 in the second direction Y, and the heart rail 200 can be processed more easily, and the processing of the heart rail 200 can be completed only by cutting the profile steel 20.

[0082] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0083] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0084] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A movable heart fork, characterized in that The movable frog includes, The wing rail assembly includes a first wing rail and a second wing rail, the first wing rail and the second wing rail are spaced apart along a first direction and form a frog rail groove between the first wing rail and the second wing rail; The center rail is located in the frog rail groove, and the top of the center rail along a second direction has a pointed end; The driving assembly is used to drive the center rail to move in the frog rail groove along the first direction and realize that the pointed end of the center rail is attached to the first wing rail or the second wing rail to change the running track of the train; The self-locking piece is located between the driving assembly and the wing rail assembly, and when the pointed end of the center rail is attached to the first wing rail or the second wing rail, the self-locking piece is used to lock the relative position between the pointed end of the center rail and the first wing rail or the second wing rail to prevent the pointed end of the center rail from being separated from the first wing rail or the second wing rail; The center rail has a first height along the second direction, the first wing rail or the second wing rail has a second height along the second direction, the first height is less than the second height, the center rail is completely located in the frog rail groove, the center rail has a first length along a third direction, the bottom of the center rail along the second direction has a matching surface, and the matching surface is a circular arc structure; The driving assembly includes, The intermediate piece includes a first intermediate part and a second intermediate part arranged in sequence along the second direction, the first intermediate part is connected to the second intermediate part, the first intermediate part is located in the frog rail groove, and the second intermediate part is located at the bottom of the first wing rail and the second wing rail, the first intermediate part is provided with an accommodation groove along a third direction, the accommodation groove has a first opening toward the side of the center rail, and the center rail is located in the accommodation groove; The driving rod is arranged along the first direction, the driving rod is matched with the second intermediate part, and the driving rod is used to drive the second intermediate part to move along the first direction; The connecting assembly includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are spaced apart along the first direction and form a first interval space between the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are respectively located on both sides of the wing rail assembly along the second direction.

2. The movable heart fork according to claim 1, characterized in that The cross section of the accommodation groove along the second direction is a circular arc structure, and the matching surface of the center rail is in surface contact with the accommodation groove along the third direction.

3. The movable frog according to claim 1, wherein The second intermediate part is provided with a first driving groove penetrating along the third direction, the first driving groove has a second opening toward the side of the driving rod, and the first driving groove is provided with two first driving grooves arranged in sequence and spaced apart along the first direction. The driving rod is provided with a first driving block on the side close to the second intermediate part, and two first driving blocks are sequentially and spaced apart in the first direction and extend towards the second intermediate part. Under the movement of the driving rod, the first driving block and the first driving groove form a surface contact in the first direction to further drive the second intermediate part to move in the first direction.

4. The movable heart fork according to claim 3, characterized in that The first driving groove has a first driving surface on the side away from the first intermediate part in the first direction, and the first driving block has a second driving surface on the side away from the first intermediate part in the first direction, and under the movement of the driving rod, the first driving surface and the second driving surface abut to drive the second intermediate part to move in the first direction.

5. The movable heart fork according to claim 4, characterized in that The first connecting piece and the second connecting piece each include a first connecting part and a second connecting part sequentially arranged in the second direction, the first connecting part is connected with the wing rail assembly, the second connecting part is provided with a first through hole penetrating in the first direction, the first through hole is connected with the first spacing space to form a movement space, and the second intermediate part and the driving rod are located in the movement space and move.

6. The movable heart fork according to claim 5, characterized in that The movable point frog further includes, a first limiting piece fixedly connected with the first connecting part, arranged on the side of the first connecting part close to the driving rod in the second direction, provided with a first limiting surface and a second limiting surface, and the first limiting surface and the second limiting surface are arranged towards the second intermediate part, and the first limiting surface intersects with the second limiting surface to form a first limiting angle.

7. The movable heart fork according to claim 6, characterized in that The self-locking piece includes, a third limiting surface located at the bottom of the second intermediate part in the second direction, arranged towards the first driving block, located on one side of the first driving groove in the first direction, corresponding to the first driving surface, and intersecting with the first driving surface; a fourth limiting surface located at the top of the first driving block in the second direction, arranged towards the second intermediate part, corresponding to the second driving surface, and intersecting with the second driving surface; a first limiting groove penetrating the second intermediate part in the third direction, arranged on the side of the second intermediate part close to the first limiting piece in the second direction, provided with a third opening on the side close to the first limiting piece, composed of a fifth limiting surface and a sixth limiting surface, and the fifth limiting surface and the sixth limiting surface are arranged towards the first limiting piece, intersect with each other to form a second limiting angle; wherein, under the relative movement of the intermediate piece and the driving rod, the movable point frog includes a first state and a second state, In the first state, the driving rod moves along the first direction, the first driving surface is in abutment with the second driving surface to drive the tip portion of the center rail to move close to the wing rail assembly until the tip portion of the center rail is in abutment with the first wing rail or the second wing rail; In the second state, on the basis of the first state, the driving rod further moves along the first direction, the first driving surface is out of abutment with the second driving surface, the driving rod drives the intermediate piece to rotate around the center rail, and the third limiting surface is in abutment with the fourth limiting surface, the first limiting surface is in abutment with the fifth limiting surface to form the limiting of the intermediate piece in the second direction, and the second limiting surface is in abutment with the sixth limiting surface to form the limiting of the intermediate piece in the first direction.

8. The movable heart fork according to claim 5, characterized in that The movable center rail frog comprises, A buffer is located in the first through hole, and the buffer is located at the bottom of the first through hole along the second direction. During the movement of the driving rod along the first direction, the bottom of the driving rod along the second direction is in sliding contact with the buffer.

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