A conversion mechanism for a movable turnout frog driven by one machine at multiple points

Abstract

The present invention relates to a conversion mechanism of a movable heart rail fork of a turnout driven by a single machine at multiple points, which has at least two traction points, each traction point comprising a support plate installed at one end of the turnout sleeper in the length direction, a square rod support installed on the support plate, a connecting rod assembly installed on the square rod support, and a guide rod connected to one end of the connecting rod assembly; the connecting rod assemblies at adjacent traction points are connected by a connecting pipe assembly; a joint iron is installed on the corresponding wing rail at at least one of the traction points, and a pull plate assembly is installed on the corresponding long heart rail and short heart rail at the remaining traction points; a square pull rod is installed on the joint iron; one end of the square pull rod is matched and connected with the power output end of the switch device, and the other end of the square pull rod is connected to one end of the guide rod at the corresponding traction point; the pull plate assembly is connected to one end of the guide rod at the corresponding traction point. The present invention has a simple and reasonable structural design, a safe and stable structure, a low manufacturing cost, and a small amount of maintenance and repair in on-site use.

Description

Technical Field

[0001] The invention relates to the technical field of track manufacturing, and in particular to a conversion mechanism for a movable point rail frog of a turnout driven by one machine and multiple points. Background Art

[0002] The movable point rail switch eliminates the harmful space in the throat of the fixed point rail switch, increases the lateral speed of the train, and is widely used in passenger-dedicated lines with large number switches, passenger-freight lines, and heavy-load railway lines. At present, the traction point of the movable point rail switch in my country adopts a multi-machine multi-point traction method, that is, each traction point is equipped with a switch device. The movable point rail switch No. 12 and No. 18 are equipped with two switch devices, and the movable point rail switch No. 30 and No. 42 are equipped with three switch devices.

[0003] When designing the movable heart rail frog of overseas turnouts, in order to meet the design requirements put forward by users, reduce the manufacturing cost of turnouts, and reduce the maintenance and repair workload during the use of turnouts, it is necessary to develop a conversion mechanism for the movable heart rail frog of turnouts that can be driven by one machine at multiple points. This mechanism only requires one switching device to complete the traction conversion of the heart rail for movable heart rail frogs with multiple traction points.

[0004] Among the existing patent technologies, the utility model patent "A conversion mechanism for a single-machine multi-point traction turnout" with publication number "CN212796902U" is relatively close to this application, but the patent describes a partial conversion mechanism for a turnout switch, which cannot be used for a movable heart rail frog, and does not involve the connection method between the conversion mechanism and the rail member and the insulation performance requirements. For a single-machine multi-point drive of a movable heart rail frog, the current technology has limitations. Summary of the invention

[0005] In view of the problems existing in the above-mentioned background technology, the present invention proposes a conversion mechanism for a one-machine-multi-point-driven turnout movable heart rail frog which has a simple and reasonable structural design, a safe and stable structure, a low manufacturing cost, and a small amount of on-site maintenance.

[0006] The technical solution of the present invention is as follows:

[0007] The above-mentioned conversion mechanism of the movable heart rail fork of the one-machine-multiple-point driven turnout has at least two traction points, each of which includes a support plate matched and installed at one end of the switch sleeper in the length direction, a square rod support matched and installed on the support plate, a connecting rod assembly matched and installed on the square rod support, and a guide rod matched and connected to one end of the connecting rod assembly; the connecting rod assemblies at adjacent traction points are matched and connected through a connecting pipe assembly; a joint iron is matched and installed on the corresponding wing rail at at least one of the traction points, and a pull plate assembly is matched and installed on the corresponding long heart rail and short heart rail at the remaining traction points; a square pull rod is matched and installed on the joint iron; one end of the square pull rod is matched and connected to the power output end of the switch equipment, and the other end of the square pull rod is matched and connected to one end of the guide rod at the corresponding traction point; the pull plate assembly is matched and connected to one end of the guide rod at the corresponding traction point.

[0008] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: the connecting rod assembly includes a first connecting rod, a second connecting rod and a third connecting rod; one end of the first connecting rod of each of the traction points is matched and hinged to the upper part of the square rod support, and the other end is matched and connected to the other end of the guide rod; the connecting pipe assembly includes two connecting pipes; one end of the two connecting pipes is matched and connected to the second connecting rod and the third connecting rod of one of the traction points respectively, and the other end of the two connecting pipes is matched and hinged to the second connecting rod and the third connecting rod of another adjacent traction point.

[0009] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: one end of the two connecting pipes is connected to the second connecting rod and the third connecting rod through threaded cooperation and axial limitation is performed by installing connecting pipe nuts on one end of the two connecting pipes.

[0010] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: the other end of the guide rod is connected to the other end of the first connecting rod by threaded fitting and axially limited by installing a guide rod nut on the other end of the first guide rod.

[0011] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: the other end of the square pull rod is matched and connected with one end of the guide rod at the corresponding traction point through a rod joint assembly; the pull plate assembly is matched and connected with one end of the guide rod at the corresponding traction point through another rod joint assembly.

[0012] The conversion mechanism of the movable heart rail frog of the one-machine multi-point driven turnout, wherein: the pull plate assembly includes a joint plate, a pull plate, a rib plate and a pull plate bolt connection pair; the joint plate and the pull plate are both plate structures bent at right angles; a joint plate mounting hole is matched at one horizontal end of the joint plate, and at the same time, the horizontal end of the joint plate passes through the bottom side of the wing rail and the passing end is matched and connected with the guide rod at the corresponding traction point through a rod joint assembly, and the upper part of the vertical end of the joint plate is connected to the short heart rail and the short heart rail arranged on the outer side of the short heart rail The rail clamping plate is in contact and connected; the horizontal end of the pull plate is matched and connected with the horizontal end of the joint plate, and the upper part of the vertical end of the pull plate is in contact and connected with the long center rail and the long center rail clamping plate arranged on the outer side of the long center rail; the upper part of the vertical end of the joint plate and the upper part of the vertical end of the pull plate are fixed together with the short center rail, the short center rail clamping plate, the long center rail and the long center rail clamping plate through the same pull plate bolt connection pair; the rib plate is matched and clamped between the lower part of the vertical end of the pull plate and the lower part of the vertical end of the joint plate.

[0013] The conversion mechanism of the movable heart rail frog of the one-machine multi-point driven turnout, wherein: the rod joint assembly is composed of an insulating sleeve, a lubricating shaft, an oil cup, an insulating washer, a shaft sleeve and a split pin; in the rod joint assembly used to connect the square pull rod and the guide rod, the insulating sleeve is matched and penetrated through the other end of the square pull rod, and both ends of the insulating sleeve protrude to the outside of the other end of the square pull rod and the outer side of the protruding end is matched with the insulating washer; in the rod joint assembly used to connect the joint plate and the guide rod, the insulating sleeve is matched and penetrated through the joint plate. A horizontal end, and both ends of the insulating sleeve protrude outwardly from the horizontal end of the connector plate and the protruding ends are matched with another insulating gasket; the lubrication shaft passes through the guide rod and the insulating sleeve in sequence, the head of the lubrication shaft extends outwardly from the guide rod and is matched with the cotter pin for axial limiting, the tail of the lubrication shaft extends outwardly from the guide rod and is matched with a limit baffle for axial limiting; the outer wall of the lubrication shaft and the guide rod are transitionally connected via the sleeve; the oil cup is matched and installed at the tail of the lubrication shaft.

[0014] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: a connecting arm is protruding from the upper part of the rod body of the square pull rod near the middle section; a U-shaped groove is matched on the upper part of the connecting arm and is matched and connected with the long heart rail through the U-shaped groove.

[0015] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout, wherein: the joint iron has a pair and is matched and located on both sides of the connecting arm; the pair of joint irons are respectively matched and installed on the two ends of the square pull rod and the upper ends are respectively assembled and connected with the corresponding pair of wing rails through the joint iron bolt connection pair.

[0016] Beneficial effects:

[0017] The conversion mechanism of the movable heart rail frog of the one-machine-multi-point driven turnout of the present invention has a simple and reasonable structural design, a safe and stable structure, a low manufacturing cost, and a small amount of on-site maintenance and repair. It can break through the current bottleneck in this technology and is easy to promote and popularize in overseas railway turnout markets.

[0018] In the conversion mechanism of the movable point rail frog of the one-machine-multi-point driven turnout of the present invention, each traction point is connected with the long point rail and the short point rail, and the long point rail and the short point rail are driven to realize linear displacement through the driving of the switch equipment, thereby ensuring that the train passes smoothly in the straight and side directions of the movable point rail frog.

[0019] The present invention also specifically includes the following advantages or features:

[0020] (1) The T-shaped connecting rod assembly of the present invention forms a mechanical structure with stable force transmission with the square pull rod, guide rod and connecting pipe, which can meet the accurate displacement output of the pull rod at each traction point to pull the heart rail;

[0021] (2) When the present invention is working, the switch device transmits the traction force through the square pull rod. On the one hand, it transmits the traction force to the long center rail through the U-shaped groove on the square pull rod to achieve the conversion of the long center rail. On the other hand, it transmits the traction force to the remaining traction points through the guide rod to achieve the conversion at each traction point.

[0022] (3) The traction force is transmitted to the pull plate assembly through the guide rods at the second and third traction points to achieve the movement of the long center rail and the short center rail at the second and third traction points; the manufacturing process of the pull plate assembly is not limited to welding, integral casting or integral machining process;

[0023] (4) By installing oil cups, insulating sleeves, washers, etc. at each connection, continuous lubrication is provided for the entire mechanical mechanism and failure of each connection part due to conversion caused by electrical conduction is prevented;

[0024] (5) The switch equipment of the present invention can be driven by an electric switch machine or a manual switchman.

[0025] (6) The present invention can be simultaneously applicable to mechanisms with different numbers of traction points, such as one machine with two points, one machine with four points, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a top view of the conversion mechanism of the movable frog of the one-machine-multi-point driven turnout of the present invention;

[0027] Figure 2 The invention provides a conversion mechanism for a movable turnout frog driven by a single machine at multiple points. Figure 1 Enlarged view of the middle C area;

[0028] Figure 3The invention provides a conversion mechanism for a movable turnout frog driven by a single machine at multiple points. Figure 1 Middle AA section view;

[0029] Figure 4 The invention provides a conversion mechanism for a movable turnout frog driven by a single machine at multiple points. Figure 1 Middle BB section view;

[0030] Figure 5 The invention provides a conversion mechanism for a movable turnout frog driven by a single machine at multiple points. Figure 4 Magnified view of area D in the middle. DETAILED DESCRIPTION

[0031] like Figures 1 to 5 As shown, the conversion mechanism of the movable heart rail frog of the one-machine multi-point driven turnout of the present invention includes a support plate 1, a square rod support 2, a connecting rod assembly 3, a guide rod 4, a connecting pipe assembly 5, a square pull rod 6, a joint iron 7, a pull plate assembly 8 and a rod joint assembly 9.

[0032] The support plate 1 has three parts and includes a first support plate 11, a second support plate 12 and a third support plate 13; the first support plate 11, the second support plate 12 and the third support plate 13 are all rectangular plate structures, the first support plate 11, the second support plate 12 and the third support plate 13 are spaced a certain distance from each other and one end in the length direction is respectively matched and installed on one end in the length direction of the corresponding three switch sleepers 100, and the other end in the length direction of the first support plate 11, the second support plate 12 and the third support plate 13 protrudes to the outside of the corresponding three switch sleepers 100.

[0033] The square rod support 2 has three parts, namely, a first square rod support 21, a second square rod support 22 and a third square rod support 23; the first square rod support 21, the second square rod support 22 and the third square rod support 23 are respectively matched and installed on the top surface of one end of the first support plate 11, the second support plate 12 and the third support plate 13 protruding to the outside of the switch sleeper 100.

[0034] The connecting rod assembly 3 is three groups matched and installed on the upper part of the square rod support 2, and each group of connecting rod assemblies 3 is a T-type connecting rod assembly composed of three groups of connecting rods and includes a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod, the second connecting rod and the third connecting rod all include a main connecting rod 31 and a secondary connecting rod 32; wherein, one end of the main connecting rod 31 of the first connecting rod is matched and hinged to the upper part of the square rod support 2, and the other end is matched and hinged to one end of the secondary connecting rod 32 of the first connecting rod; the other end of the secondary connecting rod 32 of the first connecting rod is matched and connected to one end of the guide rod 4; the secondary connecting rod 32 of the first connecting rod is also axially matched with an internal threaded hole opened from the center of the other end.

[0035] The guide rod 4 has three parts, namely, a first guide rod 41, a second guide rod 42 and a third guide rod 43; the first guide rod 41 is matched and connected between the secondary link 32 of the first link of the link assembly 3 located on the first square rod support 21 and the square pull rod 6; the second guide rod 42 is matched and connected between the secondary link 32 of the first link of the link assembly 3 located on the second square rod support 22 and one group of the pull plate assembly 8; the third guide rod 43 is matched and connected between the secondary link 32 of the first link of the link assembly 3 located on the third rod support 23 and another group of the pull plate assembly 8. Among them, one end of the guide rod 4 is matched and connected with the internal thread hole at the other end of the secondary link 32 of the first link of the link assembly 3 through an external thread and is axially limited by a guide rod nut 44 installed on one end of the guide rod 4; the end of the guide rod 4 connected with the square pull rod 6 and the pull plate assembly 8 is matched with a U-shaped fork 45, and the center of the opposite two side walls of the U-shaped fork 45 is matched and penetrated with a through hole.

[0036] The connecting tube assembly 5 has two groups, namely a first connecting tube assembly and a second connecting tube assembly, and the first connecting tube assembly and the second connecting tube assembly are respectively matched and connected between the second connecting rod and the auxiliary connecting rod 32 in the third connecting rod of two adjacent groups of connecting rod assemblies 3; the first connecting tube assembly and the second connecting tube assembly each include two connecting tubes 51. Among them, one end of the two connecting tubes 51 of the first connecting tube assembly is connected to the other end of the second connecting rod and the third connecting rod of the connecting rod assembly 3 located on the first square rod support 21 through threaded cooperation and is axially limited by a connecting tube nut 52, and the other end of the two connecting tubes 51 of the first connecting tube assembly is respectively matched and hinged with the other end of the second connecting rod and the third connecting rod of the connecting rod assembly 3 located on the second square rod support 22; one end of the two connecting tubes 51 of the second connecting tube assembly is connected to the other end of the two connecting tubes 51 of the first connecting tube assembly through threaded cooperation and is axially limited by another connecting tube nut 52, and the other end of the two connecting tubes 51 of the second connecting tube assembly 5 is matched and hinged with the other end of the second connecting rod and the third connecting rod of the connecting rod assembly 3 located on the third rod support 23.

[0037] One end of the square pull rod 6 is matched with a pull rod mounting hole and is matched with a rod joint assembly 9 through the pull rod mounting hole to be matched and connected to one end of the guide rod 4. The other end of the square pull rod 6 is matched with a switch device connecting hole 61 and is matched and connected to the power output end of the switch device through the switch device connecting hole 61; a connecting arm 62 is protruded from the upper part of the rod body near the middle section of the square pull rod 6, and a U-shaped groove is matched on the upper part of the connecting arm 62 and is matched and connected to the long center rail 500 through the U-shaped groove.

[0038] The joint iron 7 has a pair and is respectively matched and installed at the two ends of the square pull rod 6. The pair of joint irons 7 are matched and located on both sides of the connecting arm 62 of the square pull rod 6, and the upper ends are respectively assembled and connected with the middle part of a pair of wing rails 200 through joint iron bolt connection pairs 71.

[0039] The manufacturing process of the pull plate assembly 8 is not limited to welding, integral casting or integral machining process. It has a pair of and both include a joint plate 81, a pull plate 82, a rib plate 83 and a pull plate bolt connection pair 84; the joint plate 81 and the pull plate 82 are both plate structures bent at right angles; the horizontal end of the joint plate 81 is matched with a joint plate mounting hole, and at the same time, the horizontal end of the joint plate 81 passes through the bottom side of one side wing rail 200 and the protruding end is matched and connected with the U-shaped fork 45 of the corresponding guide rod 4 through the rod joint assembly 9, and the upper part of the vertical end of the joint plate 81 is connected to the outer side of the short center rail 300 The horizontal end of the pull plate 82 is matched and connected with the horizontal end of the joint plate 81, and the upper part of the vertical end of the pull plate 82 is connected with the outer side of the long center rail 500 and the long center rail clamping plate 600 provided on the outer side of the long center rail 500; at the same time, the upper part of the vertical end of the joint plate 81 and the upper part of the vertical end of the pull plate 82 are fixed together with the short center rail 300, the short center rail clamping plate 400, the long center rail 500 and the long center rail clamping plate 600 through the same pull plate bolt connection pair 84. The rib plate 83 is matched and clamped between the lower part of the vertical end of the pull plate 82 and the lower part of the vertical end of the joint plate 81.

[0040] like Figure 5As shown, the rod joint assembly 9 is composed of an insulating sleeve 91, a lubricating shaft 92, an oil cup 93, an insulating washer 94, a shaft sleeve 95 and a split pin 96. Among them, the insulating sleeve 91 in the rod joint assembly 9 installed between the square tie rod 6 and the guide rod 4 is matched and penetrated in the tie rod mounting hole at the other end of the square tie rod 6, and both ends of the insulating sleeve 91 installed in the tie rod mounting hole protrude to the outside of both ends of the tie rod mounting hole, and the outer side of the protruding end is matched with an insulating washer 94. The insulating sleeve 91 in the rod joint assembly 9 installed between the joint plate 81 and the guide rod 4 is matched and penetrated in the joint plate mounting hole at one end of the joint plate 81 that is horizontal, and both ends of the insulating sleeve 91 installed in the joint plate mounting hole protrude to the outside of both ends of the joint plate mounting hole, and the outer side of the protruding end is matched with an insulating washer 94. The lubricating shaft 92 matches and passes through the through hole of the U-shaped fork 45 of the guide rod 4 and the inner hole of the insulating sleeve 91 in sequence, and its head extends outward from one end of the through hole of the U-shaped fork 45 of the guide rod 4 and the extended end is matched and penetrated with a split pin 96 for axial limit in the radial direction, and the tail extends outward from one end of the through hole of the U-shaped fork 45 of the guide rod 4 and is axially limited by a limit baffle 97 provided on the tail; the lubricating shaft 92 is provided with an oil cup mounting hole axially from the center of the outer side surface of the limit baffle 97 of the tail; the outer wall of the lubricating shaft 92 and the inner wall of the through hole of the U-shaped fork 45 of the guide rod 4 are transitionally connected by a shaft sleeve 95. The oil cup 93 is matched and installed in the oil cup mounting hole.

[0041] like Figure 1 As shown, the conversion mechanism of the movable heart rail frog of the one-machine multi-point driven turnout of the present invention has three traction points; each traction point is connected by a connecting pipe assembly 5; wherein the first traction point is composed of a first support plate 11, a first square rod support 21, a connecting rod assembly 3 located on the first square rod support 21, a first guide rod 41, a square pull rod 6 and a joint iron 7; the second traction point has the same structure as the third traction point; the second traction point is composed of a second support plate 12, a second square rod support 22, a connecting rod assembly 3 located on the second square rod support 22, a second guide rod 42 and one of the pull plate assemblies 8; the third traction point is composed of a third support plate 13, a third rod support 23, a connecting rod assembly 3 located on the third rod support 23, a third guide rod 43 and another pull plate assembly 8.

[0042] Among them, the switching equipment can use an electric switching machine or a manual switchman. The switching equipment is only installed at the first traction point and fixed through the reserved mounting hole on the switch sleeper 100. The power output end of the switching equipment is connected to the switching equipment connecting hole 61 on the prescription pull rod 6 of the first traction point; when the switching equipment drives the prescription pull rod 6 of the first traction point to move the long heart rail 500, it will drive the connecting rod assembly 3 at each traction point to rotate around the square rod support 2, thereby driving the guide rod 4 at the second traction point and the third traction point to move the long heart rail 500 and the short heart rail 300 components; the connecting rod assembly 3 and the square pull rod 6, the guide rod 4, and the connecting pipe 51 form a mechanical structure with stable force transmission, which meets the accuracy of the displacement linear output and the actual stroke value of the prescription pull rod 6 at each traction point to move the long heart rail 500 and the short heart rail 300 components.

[0043] like Figure 3 As shown, when working, the switch equipment transmits the traction force through the square pull rod 6. On the one hand, it is transmitted to the long center rail 500 through the U-shaped groove on the square pull rod 6 to realize the conversion of the long center rail 500. On the other hand, the traction force is transmitted to the second traction point through the guide rod 4 to realize the conversion at the second traction point; the joint iron 7 is respectively connected to a pair of wing rails 100 through the joint iron bolt connection pair 71, and the square pull rod 6 moves through the square hole of the joint iron 7. At the same time, the square hole of the joint iron 7 limits the movable range of the square pull rod 6 in four directions, so that the conversion mechanism of the present invention will not deviate from the designed position during the switching process.

[0044] like Figure 4 As shown, the pull plate assembly 8 is connected to the long heart rail 500 and the short heart rail 300 through the pull plate bolt connection pair 84, the long heart rail clamp 600, and the short heart rail clamp 400. The traction force is transmitted to the pull plate assembly 8 through the guide rod 4 to realize the pulling of the long heart rail 500 and the short heart rail 300 assemblies at the second traction point and the third traction point.

[0045] like Figure 5 As shown, the rod joint assembly 9 cooperates with the shaft sleeve 95 through the lubricating shaft 92, so that the square pull rod 6 and the guide rod 4 can realize a small range of rotation during the switching process, thereby preventing the conversion from failing due to jamming, and at the same time playing a certain wear-resistant role; the lubricating oil in the oil cup 93 plays a certain lubricating role between the lubricating shaft 92 and the shaft sleeve 95; the insulating sleeve 91 and the insulating gasket 94 play a good insulating role, preventing the connection parts from failing due to conductivity; when used for a manual switch, there is no insulation requirement, and the insulating sleeve 91 and the insulating gasket 94 can be cancelled.

[0046] The invention has a simple and reasonable structural design, a safe and stable structure, a low manufacturing cost, and a small amount of maintenance and repair in on-site use, and is suitable for promotion and application.

Claims

1. A conversion mechanism for a movable frog of a turnout driven by multiple points on one machine, characterized in that: The conversion mechanism has at least two traction points, each of which comprises a support plate (1) matched with one end of the switch sleeper (100) in the length direction, a square rod support (2) matched with the support plate (1), a connecting rod assembly (3) matched with the square rod support (2), and a guide rod (4) matched with one end of the connecting rod assembly (3); the connecting rod assemblies (3) at adjacent traction points are matched with each other through a connecting pipe assembly (5); A joint iron (7) is matched and installed on the wing rail (200) corresponding to at least one of the traction points, and a pull plate assembly (8) is matched and installed on the long center rail (500) and the short center rail (300) corresponding to the other traction points; A square pull rod (6) is matched and installed on the joint iron (7); one end of the square pull rod (6) is matched and connected with the power output end of the switch equipment, and the other end of the square pull rod (6) is matched and connected with one end of the guide rod (4) at the corresponding traction point; the pull plate assembly (8) is matched and connected with one end of the guide rod (4) at the corresponding traction point; The connecting rod assembly (3) comprises a first connecting rod, a second connecting rod and a third connecting rod; one end of the first connecting rod of each traction point is hinged to the upper part of the square rod support (2), and the other end is connected to the other end of the guide rod (4); The connecting pipe assembly (5) comprises two connecting pipes (51); one end of the two connecting pipes (51) is respectively connected to the second connecting rod and the third connecting rod of one of the traction points, and the other end of the two connecting pipes (51) is connected to the second connecting rod and the third connecting rod of another adjacent traction point; The other end of the square pull rod (6) is matched and connected to one end of the guide rod (4) at the corresponding traction point via a rod joint assembly (9); the pull plate assembly (8) is matched and connected to one end of the guide rod (4) at the corresponding traction point via another rod joint assembly (9); The pull plate assembly (8) comprises a joint plate (81), a pull plate (82), a rib plate (83) and a pull plate bolt connection pair (84); the joint plate (81) and the pull plate (82) are both plate structures bent at right angles; a joint plate mounting hole is matched and opened at one horizontal end of the joint plate (81); at the same time, the horizontal end of the joint plate (81) passes through the bottom side of the wing rail (200) and the protruding end is matched and connected with the guide rod (4) at the corresponding traction point through a rod joint assembly (9); the upper part of the vertical end of the joint plate (81) is in contact and connected with the short center rail (300) and the short center rail clamping plate (400) arranged on the outer side of the short center rail (300); the pull plate (82) The horizontal end is matched and connected with the horizontal end of the joint plate (81); the upper part of the vertical end of the pull plate (82) is in contact and connected with the long center rail (500) and the long center rail clamping plate (600) arranged on the outer side of the long center rail (500); the upper part of the vertical end of the joint plate (81) and the upper part of the vertical end of the pull plate (82) are fixed together with the short center rail (300), the short center rail clamping plate (400), the long center rail (500) and the long center rail clamping plate (600) through the same pull plate bolt connection pair (84); the rib plate (83) is matched and clamped between the lower part of the vertical end of the pull plate (82) and the lower part of the vertical end of the joint plate (81).

2. The conversion mechanism of the movable frog of the one-machine multi-point drive turnout as claimed in claim 1, characterized in that: One end of the two connecting pipes (51) is connected to the second connecting rod and the third connecting rod through threaded matching, and axial limitation is performed by installing connecting pipe nuts (52) on one end of the two connecting pipes (51).

3. The conversion mechanism of the movable frog of the one-machine multi-point drive turnout as claimed in claim 1, characterized in that: The other end of the guide rod (4) is connected to the other end of the first connecting rod by threaded fitting, and axial positioning is performed by installing a guide rod nut (44) at the other end of the first guide rod (41).

4. The conversion mechanism of the movable frog of the one-machine multi-point drive turnout as claimed in claim 1, characterized in that: The rod joint assembly (9) is composed of an insulating sleeve (91), a lubricating shaft (92), an oil cup (93), an insulating washer (94), a shaft sleeve (95) and a split pin (96); In the rod joint assembly (9) for connecting the square pull rod (6) and the guide rod (4), the insulating sleeve (91) is matched and penetrated through the other end of the square pull rod (6), and both ends of the insulating sleeve (91) protrude toward the outside of the other end of the square pull rod (6) and the outer side of the protruding ends are matched and sleeved with the insulating gasket (94); In the rod joint assembly (9) for connecting the joint plate (81) and the guide rod (4), the insulating sleeve (91) is matched and penetrated through one horizontal end of the joint plate (81), and both ends of the insulating sleeve (91) protrude outwardly from the horizontal end of the joint plate (81) and the protruding ends are matched and sleeved with another insulating gasket (94) outside; The lubrication shaft (92) is matched to pass through the guide rod (4) and the insulating sleeve (91) in sequence; the head of the lubrication shaft (92) extends outward from the guide rod (4) and is matched to be installed with the cotter pin (96) for axial limiting; the tail of the lubrication shaft (92) extends outward from the guide rod (4) and is matched to be provided with a limit baffle (97) for axial limiting; the outer wall of the lubrication shaft (92) and the guide rod (4) are transitionally connected via the shaft sleeve (95); the oil cup (93) is matched to be installed at the tail of the lubrication shaft (92).

5. The conversion mechanism of the movable frog of the one-machine multi-point drive turnout as claimed in claim 1, characterized in that: The square pull rod (6) is provided with a connecting arm (62) protruding from the upper part of the rod body near the middle section; the upper part of the connecting arm (62) is matched with a U-shaped groove and is matched and connected to the long center rail (500) through the U-shaped groove.

6. The conversion mechanism of the movable frog of the one-machine-multi-point-driven turnout as claimed in claim 5, characterized in that: The joint iron (7) has a pair and is matched and located on both sides of the connecting arm (62); the pair of joint irons (7) are respectively matched and installed on the two ends of the square pull rod (6) and the upper ends are respectively assembled and connected with the corresponding pair of wing rails (200) through the joint iron bolt connection pair (71).

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