Online frog replacing tool
By designing an online fork replacement tool, which utilizes components such as hydraulic cylinders and anti-loosening nuts to achieve stable clamping of the fork, the problem of complex structure and easy detachment of existing devices is solved, thus improving the stability and convenience of fork replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
Smart Images

Figure CN224077882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turnout tool technology, specifically a turnout online replacement tool. Background Technology
[0002] A frog, also called a turnout, is a track connection device that allows locomotives and rolling stock to switch from one track to another. It is also one of the weakest links in the track and is typically installed extensively in stations and marshalling yards. Turnouts allow for the full utilization of a track's throughput capacity. Even on a single-track railway, installing turnouts and constructing a fork track longer than the train's length allows trains to run in opposite directions. Turnouts play a crucial role in railway lines. Existing alloy steel frog structures mainly include forged alloy steel core rail combination frogs, alloy steel rail combination frogs, and welded wing rail reinforced alloy steel combination frogs. In these three types of frogs, the wing rails retain the shape of the main rail, and the vulnerable parts are integrated with the main wing rail structure, meaning that the vulnerable parts cannot be replaced individually when they fail.
[0003] Patent application CN219793479U discloses an auxiliary device for frog replacement, relating to the field of frog replacement technology. This utility model's auxiliary device for frog replacement includes a pull rope and a slide rail. The slide rail has a guide surface inclined in the same direction. The slide rail can overlap the rail and form a limiting structure with it. One end of the pull rope can be connected to a frog located on one side of the rail, and the other end is connected to a power component. The power component can drive the pull rope to move, so that the frog can move along the guide surface from one side of the rail to the other. This assists the frog in crossing the rails on both sides of the track to complete derailment and rerailment operations, reducing manual labor intensity and the safety hazards caused by manually turning the frog.
[0004] However, the aforementioned turnout auxiliary devices are complex in structure and inconvenient to carry when in use, and are prone to deformation and accidental detachment after prolonged use, lacking an effective fastening structure. Utility Model Content
[0005] The purpose of this utility model is to provide an online frog replacement tool to solve the problems of existing frog auxiliary devices being complex in structure and inconvenient to carry, and being prone to deformation and accidental detachment after long-term use, and lacking an effective fastening structure.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: an online turnout replacement tool, comprising a fixed base, a mounting vertical plate fixedly disposed on the top of the fixed base, and a fixed clamping seat disposed on the bottom of the fixed base; a through sliding cavity is opened in the middle of the fixed base, a sliding seat is movably installed in the sliding cavity, and a moving clamping seat is fixedly disposed on the bottom of the sliding seat; multiple sets of screws are fixedly disposed on the inner side of the mounting vertical plate, a top plate is fixedly disposed on the top of the sliding seat, a hydraulic cylinder is installed between the mounting vertical plate and the top plate, a base plate is disposed on the bottom of the hydraulic cylinder, and the hydraulic cylinder is mounted on the screws by multiple sets of anti-loosening nuts; the anti-loosening nut includes a threaded ring, multiple sets of arc-shaped slots are opened on the outer side of the threaded ring, an arc-shaped extrusion cavity is opened on the inner side of the arc-shaped slot, a locking cavity penetrating the threaded ring is opened on the inner side of the arc-shaped extrusion cavity, and a locking element is slidably installed in the locking cavity.
[0007] As a further embodiment of this utility model: a locking ring is movably installed on the outer side of the threaded ring, and multiple sets of locking arc plates are provided at the bottom of the locking ring. The locking arc plates are movably disposed in the arc-shaped extrusion cavity and extrude and lock the locking member.
[0008] As a further embodiment of this utility model: the locking member includes a locking part and a pressing part, the arc-shaped pressing cavity has multiple sets of mounting holes inside, a return spring is provided inside the mounting hole, and the pressing part is connected to the outside of the return spring.
[0009] As a further improvement of this utility model, the top of the locking ring is provided with multiple sets of toggle blocks.
[0010] As a further improvement of this utility model: symmetrical sliding grooves are provided on the inner walls on both sides of the sliding cavity, and symmetrical sliders are provided on both sides of the sliding seat.
[0011] As a further improvement of this utility model, a limiting plate that cooperates with the top plate is also fixedly provided on the top of the fixed base.
[0012] As a further improvement of this utility model, anti-slip rubber pads are also provided on the inner walls of the fixed clamping seat and the moving clamping seat.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention uses a fixed clamping seat and a moving clamping seat to clamp and fix the frog rails on both sides. Under the action of a hydraulic cylinder, the frog rails are opened, facilitating disassembly and maintenance. Furthermore, the anti-loosening nut ensures it is firmly fixed to the mounting plate. During installation, the locking ring compresses the locking component, causing the compression part to slide inward and lock the threads on the screw, preventing the threaded ring from loosening after prolonged use. This design improves the stability of the online frog changing tool. Attached Figure Description
[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of the fixing base in this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the threaded ring in this utility model;
[0019] Figure 4 This is a cross-sectional view of the threaded ring in this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the locking component in this utility model;
[0021] Figure 6 This is a three-dimensional structural diagram of the locking ring in this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Fixed base; 2. Mounting vertical plate; 3. Fixed clamping base; 4. Sliding cavity; 5. Sliding seat; 6. Moving clamping base; 7. Screw; 8. Hydraulic cylinder; 9. Base plate; 10. Anti-loosening nut; 1001. Threaded ring; 1002. Arc-shaped slot; 1003. Arc-shaped extrusion cavity; 1004. Locking cavity; 1005. Locking element; 1006. Locking part; 1007. Extrusion part; 1008. Mounting hole; 1009. Return spring; 1010. Locking ring; 1011. Locking arc plate; 1012. Actuating block; 11. Top plate; 12. Limiting plate; 13. Slider; 14. Slide groove. Detailed Implementation
[0024] The following will be combined with the appendix Figures 1 to 6The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] This utility model provides an improved online switch replacement tool, such as... Figures 1-6 As shown, the device includes a fixed base 1, a mounting vertical plate 2 fixedly mounted on the top of the fixed base 1, and a fixed clamping seat 3 mounted on the bottom of the fixed base 1; a through sliding cavity 4 is opened in the middle of the fixed base 1, a sliding seat 5 is movably mounted in the sliding cavity 4, and a moving clamping seat 6 is fixedly mounted on the bottom of the sliding seat 5; multiple sets of screws 7 are fixedly mounted on the inner side of the mounting vertical plate 2, a top plate 11 is fixedly mounted on the top of the sliding seat 5, and a hydraulic cylinder 8 is installed between the mounting vertical plate 2 and the top plate 11. The hydraulic cylinder 8 has a base plate 9 at its bottom. The hydraulic cylinder 8 is mounted on the screw 7 via multiple sets of anti-loosening nuts 10. Each anti-loosening nut 10 includes a threaded ring 1001. The outer side of the threaded ring 1001 has multiple sets of arc-shaped slots 1002. The inner side of the arc-shaped slots 1002 has an arc-shaped extrusion cavity 1003. The inner side of the arc-shaped extrusion cavity 1003 has a locking cavity 1004 that penetrates the threaded ring 1001. A locking element 1005 is slidably installed in the locking cavity 1004. A locking ring 1010 is movably installed on the outer side of the threaded ring 1001. The bottom of the locking ring 1010 has multiple sets of locking arc plates 1011. The locking arc plates 1011 are movably disposed in the arc-shaped extrusion cavity 1003 and compress and lock the locking element 1005. The locking member 1005 includes a locking part 1006 and a pressing part 1007. The arc-shaped pressing cavity 1003 has multiple sets of mounting holes 1008 inside. A return spring 1009 is provided inside the mounting hole 1008. The pressing part 1007 is connected to the outside of the return spring 1009.
[0026] In this embodiment: the present invention clamps and fixes the fork rails on both sides using a fixed clamping seat 3 and a moving clamping seat 6. The fork rails are opened by the hydraulic cylinder 8, facilitating disassembly and maintenance. Furthermore, the anti-loosening nut 10 secures them tightly to the mounting plate 2. During installation, the threaded ring 1001 is first installed onto the screw 7. When installing the locking ring 1010, the locking arc plate 1011 is first inserted into the arc-shaped slot 1002, and then the locking ring 1010 is rotated clockwise. When the locking arc plate 1011 presses against the pressing part 1007, the locking member 1005 slides inward along the locking cavity 1004 and locks the threads on the screw 7. When the entire assembly and disassembly are required, rotate the locking ring 1010 counterclockwise and disengage the locking arc plate 1011 from the pressing part 1007. At this time, under the action of the return spring 1009, the locking part 1005 automatically pops outward, and the locking part 1006 disengages from the screw 7 and is unlocked.
[0027] See appendix Figure 6 The top of the locking ring 1010 is provided with multiple sets of toggle blocks 1012.
[0028] In this embodiment: To facilitate the rotation of the locking ring 1010, a toggle block 1012 structure is designed.
[0029] See appendix Figure 1 - Appendix Figure 2 Symmetrical grooves 14 are provided on the inner walls of both sides of the sliding cavity 4, and symmetrical sliders 13 are provided on both sides of the sliding seat 5.
[0030] In this embodiment: when the sliding seat 5 reciprocates along the sliding cavity 4, a slider 13 structure is designed to further improve its stability during movement.
[0031] See appendix Figure 1 - Appendix Figure 2 The top of the fixed base 1 is also fixedly provided with a limiting plate 12 that cooperates with the top plate 11.
[0032] In this embodiment: when the sliding seat 5 moves along the fixed seat 1, a limit plate 12 structure is designed to limit it and control its maximum stroke.
[0033] See appendix Figure 1 - Appendix Figure 2 Anti-slip rubber pads are also provided on the inner walls of the fixed clamping seat 3 and the moving clamping seat 6.
[0034] In this embodiment: when clamping the frog rails on both sides, in order to avoid accidental slippage and further increase friction, an anti-slip rubber pad structure (not shown) is designed.
[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims
1. A frog online replacement tool characterized by: The utility model relates to a fixed seat (1), the top of fixed seat (1) is provided with the installation vertical board (2) fixedly, the bottom of fixed seat (1) is provided with fixed clamping seat (3), the middle part of fixed seat (1) is opened the sliding cavity (4) of through, the sliding seat (5) is movably installed in sliding cavity (4), the bottom of sliding seat (5) is fixedly provided with movement clamping seat (6), the inner side of installation vertical board (2) is fixedly provided with multiple screw rods (7), the top of sliding seat (5) is fixedly provided with top plate (11), and the installation vertical board (2) and top plate (11) are installed hydraulic oil cylinder (8) between, the bottom of hydraulic oil cylinder (8) is provided with bottom plate (9), and hydraulic oil cylinder (8) is installed on screw rod (7) through multiple anti -drop nuts (10), the anti -drop nut (10) includes threaded ring (1001), the outer side of threaded ring (1001) is opened multiple arc insertion slot (1002), the inner side of arc insertion slot (1002) is opened arc extrusion chamber (1003), the inner side of arc extrusion chamber (1003) is opened the locking chamber (1004) of through threaded ring (1001), locking piece (1005) is slidably installed in locking chamber (1004).
2. A frog online replacement tool according to claim 1, characterised in that: The outer side of threaded ring (1001) movably installs locking ring (1010), the bottom of locking ring (1010) is provided with multiple locking arc plates (1011), the locking arc plate (1011) is movably arranged in the arc extrusion chamber (1003) and extrusion locking is carried out to locking piece (1005).
3. A frog online replacement tool according to claim 1, wherein: Locking piece (1005) includes locking portion (1006) and extrusion portion (1007), the inside of arc extrusion chamber (1003) is opened multiple mounting holes (1008), the inside of mounting hole (1008) is provided with return spring (1009), and extrusion portion (1007) is connected with the outside of return spring (1009).
4. A frog online replacement tool according to claim 2, wherein: The top of locking ring (1010) is provided with multiple shift blocks (1012).
5. The frog online replacement tool of claim 1, wherein: The inner wall on both sides of sliding cavity (4) is opened symmetrically slide groove (14), and the both sides of sliding seat (5) are provided with symmetric slide block (13).
6. The frog online replacement tool of claim 1, wherein: The top of fixed seat (1) is still fixedly provided with the limiting plate (12) that cooperates with top plate (11).
7. The frog online replacement tool of claim 1, wherein: The inner wall of fixed clamping seat (3) and movement clamping seat (6) is further provided with antiskid rubber pad.
Citation Information
Patent Citations
Auxiliary device for frog replacement
CN219793479U