A roadway rail crossing device

Abstract

The application discloses a kind of vehicle lane rail crossing devices, belong to rail transport technical field, the device includes reinforced concrete foundation, fixed box, sliding box, sealing band, horizontal motion hydraulic cylinder, vertical motion hydraulic cylinder, shear pin and steel sleeve.Fixed box is fixed in accommodating groove, sliding box is slidably arranged in fixed box near one side of rail;When crane passes, horizontal motion hydraulic cylinder drives sliding box to pull away from rail, after crane passes, horizontal motion hydraulic cylinder drives sliding box to move along guide rail groove horizontally, vertical motion hydraulic cylinder drives shear pin to be inserted into steel sleeve to form locking.The application is compact in structure, without complex electric control system, can effectively eliminate the phenomenon of vehicle jumping when vehicle passes rail groove, guarantee transportation safety.

Description

Technical Field

[0001] This invention relates to the field of rail transportation technology, and in particular to a track crossing device for vehicles. Background Technology

[0002] In port engineering storage yards, large rail-mounted gantry cranes are commonly used as vertical transportation equipment. The crane's wheels travel on dedicated rails, which are typically installed and fixed on a reinforced concrete foundation. When the crane needs to move from one storage yard to an adjacent one, the rails must cross the roadway, resulting in the rails being orthogonal to the main traffic flow on the roadway.

[0003] To ensure the stability of the pavement on both sides of the track, track grooves must be installed in the reinforced concrete foundation of the track, and the rails are installed in the track grooves. After the rails are installed, a large gap will be left between the rails and the reinforced concrete foundation, causing a sudden change in elevation. When transport vehicles travel on the track, they will experience severe bouncing when passing through the track groove area, which not only affects transportation safety but also shortens the service life of the vehicles.

[0004] Currently, existing technologies already include related rail-crossing devices. For example, Chinese utility model patent CN205973474U (publication date: February 22, 2017) discloses an automatic rail-crossing device for a rail-crossing crane. It includes a rail-crossing beam and a main beam. An electric push rod is mounted on the upper surface of the rail-crossing beam, and a support plate is provided at the end of the rail-crossing beam. A collar A is provided in the middle of the support plate. One end of the electric push rod is connected to a T-shaped push rod, and the lower end of the T-shaped push rod is hinged to a connecting rod. The connecting rod is hinged to a limit plate, and a flexible seat A is provided at the lower end of the limit plate. A detection plate is installed at the center of the end of the rail beam. Proximity switches are installed on both sides of the end of the main beam, and the proximity switches are connected to a controller. The controller is connected to the brake of the main beam travel motor and the brake of the overpass beam travel motor. A locking plate is installed at the end of the upper surface of the main beam, and a collar B is installed in the middle of the locking plate. A rail clamping baffle is hinged to one side of the main beam. A flexible seat B is installed at the lower end of the rail clamping baffle. A limit switch is installed on the upper part of the rail clamping baffle. It has the advantages of reliable connection, automatic positioning, and high safety. However, the structure of this device is complex, and it relies on the coordinated operation of electric control and sensors. It has problems such as cumbersome control logic, high failure rate, and high maintenance cost. Moreover, it cannot work normally in the event of a power outage, and its reliability is insufficient.

[0005] For example, Chinese invention patent application CN107021328A (publication date: August 8, 2017) discloses a rail-crossing device, including a mounting chassis, a rotating part disposed on the mounting chassis, the rotating part being rotatable around its rotation center axis; a guide rail mounted on the rotating part; and a locking mechanism for locking the rotated guide rail, so that the guide rail is relatively fixed to the mounting chassis. The rail-crossing device provided by this application has a simple structure and is easy to install, which can greatly improve the efficiency of rail crossing for mobile equipment. However, this solution is mainly suitable for lightly loaded mobile equipment. For the working conditions of frequent passage of heavy vehicles in port yards, its load-bearing capacity and stability are insufficient, making it difficult to resist the impact and vibration when vehicles pass by, and it is prone to loosening or jamming after long-term use.

[0006] Existing track crossing devices, when applied to port engineering yard vehicle tracks, generally suffer from problems such as complex structure, reliance on external power, insufficient load-bearing capacity, poor reset reliability, or inconvenient installation and maintenance. Therefore, there is an urgent need for a track crossing device that can achieve reliable track crossing and locking functions without relying on a complex electrical control system, thus solving the problem of vehicles jumping out when passing through the track trough. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this application provides a track crossing device for vehicles, comprising: A reinforced concrete foundation with a receiving groove on it; A fixed box is fixedly installed inside the receiving groove; A sliding box is slidably disposed on the side of the receiving groove near the rail. The fixed box includes a first base plate that extends toward the rail to the edge of the rail; the first base plate is provided with a guide rail groove extending in a horizontal direction and a first pin hole; The bottom of the sliding box is provided with a guide rail that slides with the guide rail groove, and a second pin hole; A horizontal motion hydraulic cylinder is installed inside the fixed box and fixed on the first base plate. Its piston rod is connected to the sliding box and is used to drive the sliding box to move horizontally along the guide rail groove. A vertical motion hydraulic cylinder is installed inside the sliding box, and its piston rod is connected to an anti-shear pin; A steel sleeve is embedded in the reinforced concrete foundation and located below the first base plate; When the sliding box moves to the predetermined position, the first pin hole aligns with the second pin hole, and the vertical motion hydraulic cylinder drives the anti-shear pin to pass through the second pin hole and the first pin hole in sequence and then insert it into the steel sleeve.

[0008] Furthermore, the first base plate also includes limiting holes and retaining sills. The limiting hole is located on the edge of the first base plate away from the horizontal motion hydraulic cylinder, and is used to control the upward displacement of the sliding box and prevent the sliding box from rotating; the stop is located above the limiting hole and is used to control the maximum horizontal displacement of the sliding box.

[0009] Furthermore, the first base plate has anchoring holes at its four corners for fixing the fixing box to the reinforced concrete foundation; the first base plate also has at least four anchoring holes for fixing the horizontal motion hydraulic cylinder.

[0010] Furthermore, the fixing box also includes a first side plate and a first cover plate; The first side plate has a piston hole on the side near the sliding box for the piston rod of the horizontally moving hydraulic cylinder to pass through; the first cover plate has teeth arranged on the plane near the sliding box, and the edge of the teeth has a first sealing groove.

[0011] Furthermore, the sliding box includes a second bottom plate, a second side plate, and a second cover plate; The bottom of the second base plate is provided with a guide rail, and a second pin hole is opened on the base plate; The second cover plate has a male tooth corresponding to the female tooth on the side near the fixed box, and a second sealing groove is provided at the edge of the male tooth.

[0012] Furthermore, the device also includes a sealing strip, the two ends of which are respectively embedded in the first sealing groove and the second sealing groove, and the sealing strip is made of rubber.

[0013] Furthermore, the end of the second base plate is provided with a protruding tooth that mates with the limiting hole. When the sliding box moves close to the rail, the protruding tooth is inserted into the limiting hole. The piston rod of the horizontal motion hydraulic cylinder is fixedly connected to the second side plate. The vertical motion hydraulic cylinder is fixedly connected to the second cover plate.

[0014] Furthermore, the anti-shear pin includes a pin plate and a pin rod, both of which are made of high-strength alloy steel. The pin rod is frustum-shaped, wider at the top and narrower at the bottom. The end of the pin rod with a slightly larger diameter is welded to the lower part of the pin plate, and the upper part of the pin plate is fixedly connected to the piston rod of the vertically moving hydraulic cylinder.

[0015] Furthermore, the steel sleeve is made of high-strength alloy steel and is embedded in the reinforced concrete foundation through anchor bars. It is wider at the top and narrower at the bottom, and its shape matches the pin.

[0016] Furthermore, the horizontal motion hydraulic cylinder is used to control the sliding box to move back and forth along the guide rail groove; the vertical motion hydraulic cylinder is used to control the shear pin to move in the vertical direction. When the pin is inserted into the steel sleeve, it fixes the sliding box and restricts its horizontal displacement. When it is pulled out, the restriction is released.

[0017] Furthermore, there are two guide rail grooves, evenly distributed on the first base plate; and there are two guide rails, corresponding to the positions of the guide rail grooves.

[0018] Furthermore, the first base plate, the first side plate, the first cover plate, the second base plate, the second side plate, and the second cover plate are all made of steel plates, and the upper surfaces of the first cover plate and the second cover plate are provided with anti-slip measures.

[0019] Compared with existing technologies, the advantages and effects of this application are as follows: 1. This application adopts a separate structure of fixed box and sliding box. Compared with existing devices that rely on complex control systems such as electric push rods and sensors, this application does not require an external power supply and complex control logic, has fewer failure points, and has high long-term operational reliability.

[0020] 2. This application achieves locking by using a horizontal hydraulic cylinder to drive the sliding box to move and a vertical hydraulic cylinder to drive a high-strength alloy steel anti-shear pin to insert into a pre-embedded steel sleeve, forming a rigid mechanical interlocking structure. Compared with the existing solution that uses a rotating part, this application can withstand the frequent crushing and impact of heavy transport vehicles in port yards and is not easy to loosen or deform after long-term use.

[0021] 3. The sliding box of this application can closely follow the rail when not crossing the rail, so that the road surface is continuous and flat without sudden changes in elevation. When the vehicle passes through, it will not be impacted by the gap in the rail groove, thus solving the problem of vehicle jumping and ensuring transportation safety and vehicle life.

[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] in: Figure 1 This is a plan view of a vehicle track crossing device according to the present invention; Figure 2 This is a cross-sectional view (AA) of a vehicle track crossing device according to the present invention; Figure 3 This is a top view of the fixing box of the present invention; Figure 4 This is a cross-sectional view of the fixing box of the present invention; Figure 5 This is a top view of the sliding box of the present invention; Figure 6 This is a cross-sectional view of the sliding box of the present invention; Figure 7 This is a bottom view of the anti-shear pin of the present invention; Figure 8 This is a side view of the anti-shear pin of the present invention; Figure 9 This is a cross-sectional view of the steel sleeve of the present invention.

[0026] Explanation of reference numerals in the attached figures: 1-Fixed box; 11-First base plate; 111-Anchor hole; 112-First pin hole; 113-Guide rail groove; 114-Stop; 115-Limiting hole; 12-First side plate; 121-Piston hole; 13-First cover plate; 131-First sealing groove; 132-Female tooth; 2-Sliding box; 21-Second base plate; 211-Second pin hole; 212-Guide rail; 213-Protruding tooth; 22-Second side plate; 23-Second cover plate; 231-Second sealing groove; 232-Male tooth; 3-Sealing tape; 4- Horizontal motion hydraulic cylinder; 5-Vertical motion hydraulic cylinder; 6-Shear pin; 61-Pin plate; 62-Pin bar; 7-Steel sleeve; 8-Reinforced concrete foundation; 9-Rail. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0028] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0029] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0030] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0031] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0032] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0033] Example 1 This embodiment describes a track crossing device for vehicles. Please refer to the appendix. Figure 1-6 , Figure 1 This is a plan view of a vehicle track crossing device according to the present invention; Figure 2 This is a cross-sectional view of a vehicle track crossing device according to the present invention; Figure 3 This is a top view of the fixing box of the present invention; Figure 4 This is a cross-sectional view of the fixing box of the present invention; Figure 5 This is a top view of the sliding box of the present invention; Figure 6 This is a cross-sectional view of the sliding box of the present invention; The device includes: A reinforced concrete foundation 8, on which a receiving groove is provided; Fixed box 1 is fixedly installed in the receiving groove; The sliding box 2 is slidably disposed on the side of the receiving groove near the rail 9; The fixed box 1 includes a first base plate 11, which extends toward the rail 9 to the edge of the rail 9; the first base plate 11 is provided with a guide rail groove 113 extending in the horizontal direction and a first pin hole 112. The bottom of the sliding box 2 is provided with a guide rail 212 that slides with the guide rail groove 113, and a second pin hole 211; A horizontal motion hydraulic cylinder 4 is installed inside the fixed box 1 and fixed on the first base plate 11. Its piston rod is connected to the sliding box 2 and is used to drive the sliding box 2 to move horizontally along the guide rail groove 113. A vertical motion hydraulic cylinder 5 is installed inside the sliding box 2, and its piston rod is connected to an anti-shear pin 6; The steel sleeve 7 is embedded in the reinforced concrete foundation 8 and located below the first base plate 11; When the sliding box 2 moves to the predetermined position, the first pin hole 112 aligns with the second pin hole 211, and the vertical motion hydraulic cylinder 5 drives the anti-shear pin 6 to pass through the second pin hole 211 and the first pin hole 112 in sequence and then insert it into the steel sleeve 7.

[0034] Furthermore, the first base plate 11 also includes a limiting hole 115 and a retaining sill 114. The limiting hole 115 is located on the edge of the first base plate 11 away from the horizontal motion hydraulic cylinder 4, and is used to control the upward displacement of the sliding box 2 and prevent the sliding box 2 from rotating; the stop 114 is located above the limiting hole 115 and is used to control the maximum horizontal displacement of the sliding box 2.

[0035] Furthermore, the first base plate 11 has anchor holes 111 at its four corners for fixing the fixing box 1 to the reinforced concrete foundation 8; the first base plate 11 also has at least four anchor holes 111 for fixing the horizontal motion hydraulic cylinder 4.

[0036] The technical advantages of this embodiment are: This embodiment uses a horizontal hydraulic cylinder to drive the sliding box to move and a vertical hydraulic cylinder to drive the anti-shear pin to lock it. It has a simple structure, strong load-bearing capacity, and can effectively avoid vehicle bouncing on the roadway.

[0037] Example 2 Based on Embodiment 1, a track crossing device for vehicles is further described. Please refer to the appendix. Figure 4 and attached Figure 6-9 , Figure 4This is a cross-sectional view of the fixing box of the present invention; Figure 6 This is a cross-sectional view of the sliding box of the present invention; Figure 7 This is a bottom view of the anti-shear pin of the present invention; Figure 8 This is a side view of the anti-shear pin of the present invention; Figure 9 This is a cross-sectional view of the steel sleeve of the present invention.

[0038] The fixed box 1 also includes a first side plate 12 and a first cover plate 13; The first side plate 12 has a piston hole 121 on the side near the sliding box 2 for the piston rod of the horizontally moving hydraulic cylinder 4 to pass through; the first cover plate 13 has a tooth 132 arranged on the plane near the sliding box 2, and the edge of the tooth 132 is provided with a first sealing groove 131.

[0039] The sliding box 2 includes a second bottom plate 21, a second side plate 22, and a second cover plate 23; The bottom of the second base plate 21 is provided with a guide rail 212, and a second pin hole 211 is provided on the base plate; The second cover plate 23 is provided with a male tooth 232 corresponding to the female tooth 132 on the side near the fixed box 1, and a second sealing groove 231 is provided at the edge of the male tooth 232.

[0040] Furthermore, the device also includes a sealing strip 3, with both ends of the sealing strip 3 embedded in the first sealing groove 131 and the second sealing groove 231, respectively.

[0041] Furthermore, the second base plate 21 has a protruding tooth 213 at its end that mates with the limiting hole 115. When the sliding box 2 moves close to the rail 9, the protruding tooth 213 is inserted into the limiting hole 115. The piston rod of the horizontal motion hydraulic cylinder 4 is fixedly connected to the second side plate 22. The vertical motion hydraulic cylinder 5 is fixedly connected to the second cover plate 23.

[0042] The anti-shear pin 6 includes a pin plate 61 and a pin rod 62. The pin rod 62 is frustum-shaped. The end of the pin rod 62 with a slightly larger diameter is welded to the lower part of the pin plate 61. The upper part of the pin plate 61 is fixedly connected to the piston rod of the vertical motion hydraulic cylinder 5.

[0043] The steel sleeve 7 is made of high-strength alloy steel and is embedded in the reinforced concrete foundation 8 through anchor bars. Its shape matches the pin 62.

[0044] Furthermore, there are two guide rail grooves 113, which are evenly distributed on the first base plate 11; there are two guide rails 212, which correspond to the positions of the guide rail grooves 113.

[0045] Technical advantages of this embodiment: This embodiment further improves the dustproof and waterproof capabilities, locking stability and operational safety of the device through structures such as sealing strips, protruding teeth and limiting holes, and retaining sills.

[0046] Example 3 Based on Embodiments 1 and 2, this embodiment describes a method for using a track crossing device, including the following steps: Step S1: Install the rail-crossing device inside the receiving groove; Step S2: When no crane is needed to pass, start the horizontal movement hydraulic cylinder 4 to push the sliding box 2 to the rail 9 so that the first pin hole 112 and the second pin hole 211 are aligned and the protrusion 213 is inserted into the limiting hole 115. Start the vertical movement hydraulic cylinder 5 so that the anti-shear pin 6 passes through the two pin holes in sequence and is inserted into the steel sleeve 7 to achieve locking. Step S3: When the crane needs to cross the road along the track laid on the roadway, start the vertical motion hydraulic cylinder 5 to pull out the anti-shear pin 6, and then start the horizontal motion hydraulic cylinder 4 to pull back the sliding box 2 into the fixed box 1, leaving a gap.

[0047] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Various modifications and variations are possible with respect to the present invention. Any changes, modifications, substitutions, integrations, and parameter alterations to these embodiments within the spirit and principles of the present invention fall within the scope of protection of the claims of the present invention.

Claims

1. A track crossing device for vehicles, characterized in that, include: A reinforced concrete foundation (8) is provided with a receiving groove; A fixed box (1) is fixedly installed in the receiving groove; The sliding box (2) is slidably disposed on the side of the receiving groove near the rail (9); The fixed box (1) includes a first base plate (11), which extends toward the rail (9) to the edge of the rail (9); the first base plate (11) is provided with a guide rail groove (113) extending in the horizontal direction and a first pin hole (112). The bottom of the sliding box (2) is provided with a guide rail (212) that slides with the guide rail groove (113) and a second pin hole (211). A horizontal motion hydraulic cylinder (4) is installed in the fixed box (1) and fixed on the first base plate (11). Its piston rod is connected to the sliding box (2) and is used to drive the sliding box (2) to move horizontally along the guide rail groove (113). A vertical motion hydraulic cylinder (5) is installed in the sliding box (2), and its piston rod is connected to an anti-shear pin (6). The steel sleeve (7) is embedded in the reinforced concrete foundation (8) and located below the first base plate (11); When the sliding box (2) moves to the predetermined position, the first pin hole (112) aligns with the second pin hole (211), and the vertical motion hydraulic cylinder (5) drives the anti-shear pin (6) to pass through the second pin hole (211) and the first pin hole (112) in sequence and then insert it into the steel sleeve (7).

2. The track crossing device according to claim 1, characterized in that, The first base plate (11) also includes a limiting hole (115) and a retaining sill (114). The limiting hole (115) is located on the edge of the first base plate (11) away from the horizontal motion hydraulic cylinder (4) to control the upward displacement of the sliding box (2) and prevent the sliding box (2) from rotating; the stop (114) is located above the limiting hole (115) to control the maximum horizontal displacement of the sliding box (2).

3. The track crossing device according to claim 2, characterized in that, The first base plate (11) has anchor holes (111) at its four corners for fixing the fixed box (1) to the reinforced concrete foundation (8); the first base plate (11) also has at least four anchor holes (111) for fixing the horizontal motion hydraulic cylinder (4).

4. The track crossing device according to claim 1, characterized in that, The fixed box (1) also includes a first side plate (12) and a first cover plate (13); The first side plate (12) has a piston hole (121) on the side near the sliding box (2) for the piston rod of the horizontal motion hydraulic cylinder (4) to pass through; the first cover plate (13) has a tooth (132) arranged on the plane near the sliding box (2), and the edge of the tooth (132) has a first sealing groove (131).

5. The track crossing device according to claim 1 or 4, characterized in that, The sliding box (2) includes a second bottom plate (21), a second side plate (22), and a second cover plate (23); The bottom of the second base plate (21) is provided with a guide rail (212), and a second pin hole (211) is provided on the base plate. The second cover plate (23) has a male tooth (232) corresponding to the female tooth (132) on the side near the fixed box (1), and a second sealing groove (231) is provided at the edge of the male tooth (232).

6. The track crossing device according to claim 5, characterized in that, The device also includes a sealing strip (3), the two ends of which are embedded in the first sealing groove (131) and the second sealing groove (231), respectively.

7. The track crossing device according to claim 5, characterized in that, The second base plate (21) has a tooth (213) at its end that engages with the limiting hole (115). When the sliding box (2) moves close to the rail (9), the tooth (213) is inserted into the limiting hole (115). The piston rod of the horizontal motion hydraulic cylinder (4) is fixedly connected to the second side plate (22). The vertical motion hydraulic cylinder (5) is fixedly connected to the second cover plate (23).

8. The track crossing device according to claim 1, characterized in that, The anti-shear pin (6) includes a pin plate (61) and a pin bar (62). The pin bar (62) is frustum-shaped. The end of the pin bar (62) with a slightly larger diameter is welded to the lower part of the pin plate (61). The upper part of the pin plate (61) is fixedly connected to the piston rod of the vertical motion hydraulic cylinder (5).

9. The track crossing device according to claim 8, characterized in that, The steel sleeve (7) is made of high-strength alloy steel and is embedded in the reinforced concrete foundation (8) by anchor bars. Its shape matches the pin (62).

10. The track crossing device according to claim 1, characterized in that, There are two guide rail grooves (113), which are evenly distributed on the first base plate (11); there are two guide rails (212), which correspond to the positions of the guide rail grooves (113).

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