Rail tie fixing device

Abstract

The utility model belongs to the field of tie fixing technology, concretely is a kind of tie fixing device, including the slide seat being arranged in the end of tie, the main clamping plate being set on the slide seat in transverse sliding, the sub-clamping plate being set on main clamping plate for in height direction clamping rail, and the adjusting screw for controlling the lateral position of main clamping plate between the slide seat and main clamping plate, the adjusting screw is rotatably installed on tie, the end of adjusting screw away from slide seat projects tie, the sub-clamping plate is slidably installed on main clamping plate in height direction, both ends of slide seat are provided with the slot for the sub-clamping plate from top to bottom insertion, and when the sub-clamping plate clamps rail, the sub-clamping plate is in the state of bottom end disengaging from slot.The utility model has the advantages of convenient rail dismounting, good fixing effect and strong safety.

Description

Technical Field

[0001] This utility model relates to the field of railway sleeper fixing technology; specifically, this utility model relates to a railway sleeper fixing device. Background Technology

[0002] Railway tracks, also known as rails, are used on railways and work in conjunction with switches to allow trains to move without turning. A track typically consists of two parallel steel rails fixed to sleepers, with ballast underneath. Steel rails can withstand greater weight than other materials. Sleepers, also called track sleepers, distribute the weight of the rails and maintain track gauge. Sleepers are generally connected to the rails by fasteners to ensure the safety of the railway during operation.

[0003] A search revealed CN 219824745 U, which discloses a sleeper fixing device, including a sleeper body, a first driving assembly, and a second driving assembly. The first and second driving assemblies are respectively located on both sides of the sleeper body. A first limiting groove and a second limiting groove are respectively formed on both sides of the sleeper body. The first driving assembly and the second adjusting assembly include an end, a threaded rod, and a connecting shaft. The threaded rod is welded to the inner wall of the end and is threadedly connected to the sleeper body, penetrating the sleeper body and extending into the first and second limiting grooves respectively. By setting the adjusting assemblies, the distance between tracks can be controlled during track installation, facilitating the use of trains of different sizes and effectively meeting the needs of trains of different sizes, thus improving the performance of the sleeper.

[0004] However, the inventors of this invention have found that the above solution still has certain defects: the fixing component in the above solution is an integrated design, which requires insertion from both ends of the track when connecting with the track. It cannot be directly installed at a specific position, and it is very troublesome to disassemble and replace it. In addition, the threaded rod in the above solution is not anti-rotation fixed. Therefore, the threaded rod may rotate and cause the fixing component to slip, which will eventually lead to changes in the track spacing and pose a great safety hazard. Utility Model Content

[0005] In view of this, the present invention provides a sleeper fixing device, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0006] To achieve the aforementioned objectives, this utility model provides a sleeper fixing device, including a slide seat disposed within the end of the sleeper, a main clamping plate slidably disposed laterally on the slide seat, a secondary clamping plate disposed on the main clamping plate for clamping the rail in the height direction, and an adjusting screw disposed between the slide seat and the main clamping plate for controlling the lateral position of the main clamping plate. The adjusting screw is rotatably mounted on the sleeper, with one end of the adjusting screw extending out of the sleeper away from the slide seat. The secondary clamping plate is slidably mounted on the main clamping plate in the height direction. Both ends of the slide seat are provided with slots for the secondary clamping plate to be inserted from top to bottom, and when the secondary clamping plate clamps the rail, the lower end of the secondary clamping plate is disengaged from the slot.

[0007] In the sleeper fixing device described above, optionally, the slide includes a base plate and a longitudinal plate, the longitudinal plate is vertically fixed at the middle position of the upper surface of the base plate, the opposite ends of the two adjusting screws are both set as smooth rod sections, the opposite ends of the two adjusting screws are rotatably connected, and the longitudinal plate is slidably sleeved on the smooth rod section.

[0008] In the sleeper fixing device described above, optionally, the main clamping plate includes an inverted "L"-shaped main body portion and an arc-shaped rod-shaped portion fixedly disposed on the outer end of the upper surface of the main body portion, and the arc end of the rod-shaped portion is disposed towards the longitudinal plate side.

[0009] In the sleeper fixing device described above, optionally, the sub-clamp plate has an inverted "L"-shaped sub-plate body portion and fastening bolts threaded through the top two sides of the sub-plate body portion. The top of the sub-plate body portion is provided with a through hole for the rod-shaped portion to pass through. The outer side of the sub-plate body portion is provided with a sliding groove. A sliding block is slidably disposed in the sliding groove, and the sliding block is fixedly connected to the outer side of the rod-shaped portion.

[0010] In the sleeper fixing device described above, optionally, the upper surface of the main body portion is flush with the longitudinal plate, and when the two main clamping plates clamp the rail, the opposite ends of the two main body portions respectively contact the two sides of the longitudinal plate.

[0011] In the sleeper fixing device described above, optionally, the main plate portion has rotatably connected to two sides of the longitudinal plate. The inner and outer sides of the spherical gears are respectively meshed with an inner rack and an outer rack. The inner rack is slidably mounted on the main plate portion in the height direction, and the outer rack is fixedly mounted on the inner side of the secondary plate portion. A positioning rod is provided at the bottom of the inner rack, and a positioning groove is provided on the upper surface of the base plate. When the main clamping plate clamps the rail, the positioning rod is located directly above the positioning groove, and when the secondary plate portion rises to its highest position, the positioning rod is inserted into the positioning groove.

[0012] The sleeper fixing device of this utility model adopts a main clamping plate that can move on the slide, which can achieve lateral clamping and loosening of the rail, thus facilitating the installation and removal of the rail. Furthermore, by utilizing the cooperation of the secondary clamping plate and the slot, it can adapt to different rail spacings. In addition, after the rail is fixed, the conditions for the main clamping plate and the secondary clamping plate to loosen the rail become more stringent, improving the rail fixing effect and safety. Attached Figure Description

[0013] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the sleeper fixing device of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the middle track sleeper after it has been cut open; Figure 3 This utility model Figure 2 Enlarged view of part A in the image; Figure 4 This utility model Figure 3 A schematic diagram of a localized explosion.

[0014] Reference numerals: 1-Slide; 1.1-Base plate; 1.2-Vertical plate; 2-Main clamping plate; 2.1-Main main body; 2.2-Rod-shaped part; 3-Secondary clamping plate; 3.1-Secondary plate body; 3.2-Fasting bolt; 4-Adjusting screw; 4.1-Smooth rod section; 5-Slot; 6-Through hole; 7-Sliding groove; 8-Sliding block; 9-Circular gear; 10-Internal rack; 11-External rack; 12-Positioning rod; 13-Positioning groove. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. 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.

[0016] like Figures 1 to 4As shown, a typical embodiment of this utility model provides a sleeper fixing device, including a slide 1 disposed in the end of the sleeper, a main clamping plate 2 slidably disposed on the slide 1 laterally, a secondary clamping plate 3 disposed on the main clamping plate 2 for clamping the rail in the height direction, and an adjusting screw 4 disposed between the slide 1 and the main clamping plate 2 for controlling the lateral position of the main clamping plate 2. The adjusting screw 4 is rotatably mounted on the sleeper, and the end of the adjusting screw 4 away from the slide 1 extends out of the sleeper. The secondary clamping plate 3 is slidably mounted on the main clamping plate 2 in the height direction. Both ends of the slide 1 are provided with slots 5 for the secondary clamping plate 3 to be inserted from top to bottom, and when the secondary clamping plate 3 clamps the rail, the lower end of the secondary clamping plate 3 is disengaged from the slot 5.

[0017] When the bottom end of the auxiliary clamping plate 3 is located in the slot 5, by simultaneously rotating the two adjusting screws 4, the adjusting screws 4 can control the overall lateral displacement of the slide block 1, the main clamping plate 2 and the auxiliary clamping plate 3 within the sleeper through the main clamping plate 2. In this way, the position of the slide block 1, the main clamping plate 2 and the auxiliary clamping plate 3 can be finely adjusted according to the rail spacing, thereby improving the applicability and functionality of the sleeper fixing device.

[0018] When the bottom end of the auxiliary clamping plate 3 is pulled out from the slot 5, the two main clamping plates 2 can clamp and fix the rail from the left and right sides by rotating the adjusting screw 4. At the same time, the auxiliary clamping plate 3 clamps the rail from top to bottom, which can greatly improve the effect of fixing the rail.

[0019] In a relatively specific embodiment, the slide 1 includes a base plate 1.1 and a longitudinal plate 1.2. The longitudinal plate 1.2 is vertically fixed at the middle position of the upper surface of the base plate 1.1. The opposite ends of the two adjusting screws 4 are both set as smooth rod sections 4.1, and the opposite ends of the two adjusting screws 4 are rotatably connected. The longitudinal plate 1.2 is slidably sleeved on the smooth rod section 4.1. When the slide 1 moves on the sleeper, the longitudinal plate 1.2 slides on the smooth rod section 4.1, thereby realizing the overall displacement of the slide 1, the main clamping plate 2, and the auxiliary clamping plate 3. At the same time, the two main clamping plates 2 and the two auxiliary clamping plates 3 respectively maintain an effective threaded engagement.

[0020] The main clamping plate 2 includes an inverted "L"-shaped main body portion 2.1 and an arc-shaped rod-like portion 2.2 fixedly disposed on the outer end of the upper surface of the main body portion 2.1, with the arc end of the rod-like portion 2.2 facing the longitudinal plate 1.2. The bottom end of the main body portion 2.1 is in contact with the upper surface of the base plate 1.1, allowing the main clamping plate 2 to maintain a more upright position. During the clamping process, the rod-like portion 2.2 maintains near-line contact with the rail, reducing the contact area and enabling its application to both straight and curved rails.

[0021] The sub-clamp plate 3 is an inverted "L"-shaped sub-plate body 3.1 with threaded fastening bolts 3.2 threaded through both sides of the top of the sub-plate body 3.1. The top of the sub-plate body 3.1 has a through hole 6 for the rod-shaped part 2.2 to pass through. The outer surface of the sub-plate body 3.1 has a sliding groove 7, within which a sliding block 8 is slidably mounted, and the sliding block 8 is fixedly connected to the outer surface of the rod-shaped part 2.2. The cooperation of the sliding groove 7 and the sliding block 8 stably slides the sub-clamp plate 3 onto the main clamp plate 2 in the height direction. The fastening bolts 3.2, when tightened downwards, first cause the sub-plate body 3.1 to move upwards. After the sub-plate body 3.1 reaches its highest position, further tightening applies downward pressure to the rail, thus locking the rail.

[0022] The upper surface of the main body 2.1 is flush with the longitudinal plate 1.2, and when the two main clamping plates 2 clamp the rail, the opposite ends of the two main body parts 2.1 contact the two sides of the longitudinal plate 1.2 respectively. With this arrangement, after the rail is fixed, the top of the longitudinal plate 1.2 and the upper surface of the main body can form a complete plane to support the rail, improving the stability of the rail support.

[0023] Both sides of the main body 2.1 facing the longitudinal plate 1.2 are rotatably connected to spur gears 9. The inner and outer sides of the spur gears 9 are respectively meshed with an inner rack 10 and an outer rack 11. The inner rack 10 is slidably mounted on the main body 2.1 in the height direction, and the outer rack 11 is fixedly mounted on the inner side of the sub-plate 3.1. A positioning rod 12 is provided at the bottom of the inner rack 10, and a positioning groove 13 is provided on the upper surface of the base plate 1.1. When the main clamping plate 2 clamps the rail, the positioning rod 12 is located directly above the positioning groove 13. When the sub-plate 3.1 rises to the highest position, the positioning rod 12 is inserted into the positioning groove 13.

[0024] During the process of tightening the fastening bolts 3.2 downwards to press the rail, the auxiliary plate body 3.1 drives the outer rack 11 to move upwards. At this time, the outer rack 11 drives the sprocket 9 to rotate, and the sprocket 9 drives the inner rack 10 to move downwards, causing the positioning rod 12 to insert into the positioning groove 13. At this time, the positioning rod 12, in conjunction with the positioning groove 13, locks the main clamping plate 2 and the slide 1 in the inward and outward directions, and both main clamping plates 2 are simultaneously locked to the slide 1. In this state, the two adjusting screws 4 are locked and cannot rotate actively. Furthermore, each auxiliary clamping plate 3 is equipped with two fastening bolts 3.2. When any one of the fastening bolts 3.2 loosens, the positioning rod 12 will still remain inserted into the positioning groove 13, preventing the adjusting screws 4 from rotating. This ensures that the main clamping plates 2 on both sides maintain their lateral fixing effect on the rail, further improving safety.

[0025] In the actual process of fixing steel rails: First, keep the bottom of the sub-plate 3.1 in the slot 5 and rotate the adjusting screw 4 to adjust the overall position of the sleeper slides 1, main clamp 2 and sub-clamp 3 on both sides according to the rail spacing or to avoid errors.

[0026] After the rail is placed on top of the longitudinal plate 1.2, first raise one side of the auxiliary clamping plate 3 and rotate the adjusting screw 4 on that side so that the main clamping plate 2 on that side contacts the rail. During this process, since the bottom end of the other side's auxiliary clamping plate 3 is still in the slot 5, it can lock the slide 1, thereby allowing the main clamping plate 2 in contact with the rail to apply force to the rail and press it against the rail. Finally, tighten the fastening bolt 3.2 on that side downwards so that the positioning rod 12 is inserted into the positioning groove 13, thus completing the clamping and fixing of the rail by the main clamping plate 2 and auxiliary clamping plate 3 on one side.

[0027] When fixing the other side of the rail, first lift the auxiliary clamping plate 3 on the other side so that its bottom end disengages from the slot 5. Then rotate the adjusting screw 4 on that side so that the main clamping plate 2 on that side presses against the rail. During this process, since the positioning rod 12 on the other side has been inserted into the positioning groove 13, the main plate body cannot move on the slide 1, thus ensuring that the slide 1 and the rail remain in the same position. Afterwards, tighten the fastening bolt 3.2 on that side downwards so that the positioning rod 12 on that side inserts into the positioning groove 13, thus achieving simultaneous fixing of the rail from both sides.

[0028] In the above-described scheme of this embodiment, by inserting the positioning rod 12 into the positioning groove 13, after the rail is fixed, the main clamping plate 2 and the auxiliary clamping plate 3 are locked laterally onto the slide block 1, preventing the adjusting screw 4 from rotating during rail use. Furthermore, the positioning rod 12 will only exert thrust from the positioning groove 13 if both fastening bolts 3.2 on the same auxiliary clamping plate 3 simultaneously fail, causing the auxiliary clamping plate 3 to drop to its lowest position. This makes the failure condition for the clamping action more stringent, thereby improving the rail fixing effect and safety.

[0029] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A sleeper fixing device, characterized in that, The system includes a slide (1) located at the end of the sleeper, a main clamping plate (2) slidably mounted on the slide (1), a secondary clamping plate (3) mounted on the main clamping plate (2) for clamping the rail in the height direction, and an adjusting screw (4) located between the slide (1) and the main clamping plate (2) for controlling the lateral position of the main clamping plate (2). The adjusting screw (4) is rotatably mounted on the sleeper, with one end of the adjusting screw (4) extending away from the slide (1) from the sleeper. The secondary clamping plate (3) is slidably mounted on the main clamping plate (2) in the height direction. Both ends of the slide (1) are provided with slots (5) for the secondary clamping plate (3) to be inserted from top to bottom. When the secondary clamping plate (3) clamps the rail, the secondary clamping plate (3) is in a state where its bottom end is disengaged from the slot (5).

2. The sleeper fixing device as described in claim 1, characterized in that, The slide (1) includes a base plate (1.1) and a longitudinal plate (1.2). The longitudinal plate (1.2) is vertically fixed at the middle position on the upper surface of the base plate (1.1). The opposite ends of the two adjusting screws (4) are both set as smooth rod sections (4.1). The opposite ends of the two adjusting screws (4) are rotatably connected, and the longitudinal plate (1.2) is slidably sleeved on the smooth rod section (4.1).

3. A sleeper fixing device as described in claim 2, characterized in that, The main clamping plate (2) includes an inverted "L"-shaped main body part (2.1) and an arc-shaped rod-shaped part (2.2) fixedly disposed on the outer end of the upper surface of the main body part (2.1), with the arc end of the rod-shaped part (2.2) facing the longitudinal plate (1.2).

4. A sleeper fixing device as described in claim 3, characterized in that, The sub-plate (3) has an inverted "L" shaped sub-plate body part (3.1) and fastening bolts (3.2) threaded through the top two sides of the sub-plate body part (3.1). The top of the sub-plate body part (3.1) is provided with a through hole (6) for the rod-shaped part (2.2) to pass through. The outer side of the sub-plate body part (3.1) is provided with a sliding groove (7). A sliding block (8) is slidably disposed in the sliding groove (7), and the sliding block (8) is fixedly connected to the outer side of the rod-shaped part (2.2).

5. A sleeper fixing device as described in claim 4, characterized in that, The upper surface of the main body part (2.1) is flush with the longitudinal plate (1.2), and when the two main clamping plates (2) clamp the rail, the opposite ends of the two main body parts (2.1) respectively contact the two sides of the longitudinal plate (1.2).

6. A sleeper fixing device as described in claim 5, characterized in that, The main body part (2.1) is rotatably connected to two sides of the side facing the longitudinal plate (1.2). The inner and outer sides of the gear (9) are respectively meshed with an inner rack (10) and an outer rack (11). The inner rack (10) is slidably mounted on the main body part (2.1) in the height direction. The outer rack (11) is fixedly mounted on the inner side of the sub-plate part (3.1). The bottom of the inner rack (10) is provided with a positioning rod (12). The upper surface of the base plate (1.1) is provided with a positioning groove (13). When the main clamping plate (2) clamps the rail, the positioning rod (12) is located directly above the positioning groove (13). When the sub-plate part (3.1) rises to the highest position, the positioning rod (12) is inserted into the positioning groove (13).

Images