A subway construction temporary track rapid butt joint mechanism
By automating the connection seat, docking block, fixing mechanism, and guiding mechanism, the problems of long time consumption and low accuracy in existing temporary track docking are solved, achieving efficient and accurate track docking, which is suitable for subway construction.
Patent Information
- Application Number
- CN202521932636.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-09
AI Technical Summary
The existing temporary track connection method relies on bolt connections, which is time-consuming, requires a high level of operational proficiency, and necessitates the collaboration of multiple people, thus affecting construction efficiency.
It adopts a connecting seat, docking block, fixing mechanism and guiding mechanism, and uses a No. 1 cylinder and a double-headed cylinder to achieve automatic control. Through the cooperation of hexagonal block and hexagonal hole and the guidance of guide roller, it achieves fast and accurate docking and rigid locking of track.
Track docking can be completed by a single person, which improves operational efficiency, ensures docking accuracy, and can withstand high-frequency vibration and heavy-load impact from construction machinery, preventing loosening.
Smart Images
Figure CN224678450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of subway construction equipment technology, and in particular to a rapid docking mechanism for temporary subway construction tracks. Background Technology
[0002] Temporary tracks play a crucial role in subway construction, bearing the heavy responsibility of material transportation and construction machinery operation, directly affecting the overall efficiency and progress of construction. However, the current temporary track connection method has revealed many drawbacks, seriously hindering the smooth progress of construction.
[0003] In existing technologies, traditional temporary track connection methods mostly rely on bolt connections. During the operation, construction workers need to accurately align the connection parts of the track and then tighten multiple bolts one by one to achieve a fastening. This process not only consumes a lot of time, but also requires a high level of operational proficiency and teamwork from the construction workers. In actual construction, multiple people often need to work together, with one person responsible for supporting the track to keep it aligned, while others are responsible for installing and tightening the bolts. Utility Model Content
[0004] This utility model mainly provides a rapid docking mechanism for temporary tracks in subway construction, enabling rapid positioning and secure connection of temporary tracks.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick docking mechanism for temporary tracks in subway construction, comprising: a connecting seat and a docking block, wherein a limiting groove is provided at one end of the connecting seat, a fixing mechanism is provided on one side of the connecting seat, and a guiding mechanism is provided at the upper and lower ends of the connecting seat;
[0006] The fixing mechanism includes a concave seat, with a cylinder installed at the upper end of the concave seat. A hexagonal hole is opened through the upper end of the docking block, and hexagonal holes are opened through the upper and lower ends of the connecting seat. A hexagonal block is set inside the limiting groove. The connecting seat serves as the basic bearing component for track docking. The limiting groove at one end of the connecting seat matches the end shape of the docking block. During docking, one end of the docking block is inserted into the limiting groove to form a preliminary fitting and positioning. This fitting structure can limit the lateral displacement of the docking block in the horizontal direction, providing a basic positioning for the subsequent locking of the fixing mechanism.
[0007] The fixing mechanism is the core component for achieving rigid track connection. Its concave seat is fixed to one side of the connecting seat by welding or bolts, forming a stable mounting base. A cylinder is vertically mounted on the upper end of the concave seat, and its extended end extends horizontally through one end of the concave seat and is rigidly connected to one end of the hexagonal block. The upper end of the mating block has a hexagonal hole (hole 1) that corresponds to the hexagonal hole (hole 2) that extends through the upper and lower ends of the connecting seat. When the mating block is inserted into the limiting groove, the center lines of hexagonal hole 1 and hexagonal hole 2 coincide. At this time, cylinder 1 is activated, and its extended end pushes the hexagonal block to move horizontally until the hexagonal block is simultaneously inserted into the interior of hexagonal hole 2 and hexagonal hole 1. Due to the anti-torsional characteristics of the hexagonal structure, the relative rotation between the connecting seat and the mating block can be effectively limited. Combined with the interlocking effect of the limiting groove, the two are rigidly locked in three-dimensional space. When separation is required, cylinder 1 retracts in the reverse direction, driving the hexagonal block to be pulled out from hexagonal hole 1 and hexagonal hole 2, releasing the locked state.
[0008] Preferably, one end of the concave seat is fixed to one side of the connecting seat, the hexagonal block is inserted into the interior of hexagonal hole two and hexagonal hole one, the protruding end of cylinder number one passes through one end of the concave seat and is fixed to one end of the hexagonal block, wherein the hexagonal block can be inserted into the interior of hexagonal hole two and hexagonal hole one.
[0009] Preferably, the guiding mechanism includes a double-headed cylinder, with guide plates mounted on both telescopic ends of the cylinder. Grooves are formed on both inner side walls of the limiting groove, and concave plates are installed inside both sets of grooves. Push rods are inserted through the upper and lower ends of the connecting seat. Multiple sets of rollers are rotatably installed inside the two sets of concave plates. The guiding mechanism is used for precise guidance when the connecting block is inserted into the limiting groove, while reducing frictional resistance during insertion. The double-headed cylinder is horizontally fixed to one side of the connecting seat, and the two telescopic ends are respectively connected to the two sets of guide plates, forming a symmetrical driving structure. The grooves on both inner side walls of the limiting groove provide storage space for the concave plates. Multiple sets of rollers are rotatably installed inside the concave plates, with the roller axes set vertically and their outer surfaces slightly protruding from the inner walls of the grooves.
[0010] Preferably, one end of the double-headed cylinder is fixed to one side of the connecting seat, one end of each of the two sets of push rods is fixed to one end of each of the two sets of guide plates, and the other end of each of the two sets of push rods is fixed to one end of each of the two sets of concave plates. When the docking block is ready to be inserted, the double-headed cylinder is activated, and its two telescopic ends extend synchronously. Through the guide plates and push rods, it pushes the two sets of concave plates to move towards the center of the limiting groove until the rollers on both sides contact the two sides of the docking block.
[0011] Preferably, guide rods are slidably mounted through the upper and lower ends of the connecting seat. One end of each set of guide rods is fixed to one end of each set of guide plates, and the other end of each set of guide rods is fixed to one end of each set of concave plates. The guide rods slidably mounted through the upper and lower ends of the connecting seat are rigidly connected to the guide plates and concave plates at their two ends, respectively, which can ensure that the concave plates move smoothly in the horizontal direction. The push rod is set parallel to the guide rods, which further enhances the transmission stability between the guide plates and the concave plates.
[0012] Preferably, one end of the docking block is inserted into the inside of the limiting groove, wherein the accuracy of the insertion trajectory is ensured during the process of inserting the docking block into the limiting groove.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. This utility model has high operating efficiency: it uses a No. 1 cylinder and a double-headed cylinder as the driving source to realize the automated control of the docking process. A single person can complete the guiding and locking actions, which saves time significantly compared with the traditional manual docking method. Secondly, the matching structure of the hexagonal block and hexagonal hole has high torsional strength and can withstand the high-frequency vibration and heavy impact of construction machinery, avoiding loosening of the docking part.
[0015] 2. In this utility model, the docking accuracy is high: the guide mechanism guides the docking blocks and connecting seats by clamping and guiding the rollers on both sides, and with the fitting and positioning of the limiting groove, the relative offset of the docking blocks and connecting seats can be controlled at the millimeter level, ensuring the smoothness of the track docking. Attached Figure Description
[0016] Figure 1 This utility model provides a structural schematic diagram of a rapid docking mechanism for temporary tracks in subway construction;
[0017] Figure 2 This utility model provides a partially exploded structural diagram of a rapid docking mechanism for temporary tracks in subway construction.
[0018] Figure 3 A perspective view of the fixing mechanism and guiding mechanism of a temporary track quick docking mechanism for subway construction is provided for this utility model;
[0019] Figure 4 This utility model presents a three-dimensional view of a guide mechanism for a rapid docking mechanism of temporary tracks in subway construction.
[0020] Legend: 1. Connecting seat; 11. Limiting groove; 12. Connecting block; 2. Fixing mechanism; 21. Concave seat; 22. Cylinder No. 1; 23. Hexagonal hole one; 24. Hexagonal hole two; 25. Hexagonal block; 3. Guiding mechanism; 31. Double-headed cylinder; 32. Guide frame plate; 33. Groove; 34. Concave frame plate; 35. Push rod; 36. Guide rod; 37. Roller. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a quick docking mechanism for temporary tracks in subway construction, comprising: a connecting seat 1 and a docking block 12, a limiting groove 11 is provided at one end of the connecting seat 1, a fixing mechanism 2 is provided on one side of the connecting seat 1, and a guiding mechanism 3 is provided at the upper and lower ends of the connecting seat 1.
[0024] The fixing mechanism 2 includes a concave seat 21, a cylinder 22 is installed at the upper end of the concave seat 21, a hexagonal hole 23 is opened through the upper end of the docking block 12, a hexagonal hole 24 is opened through the upper and lower ends of the connecting seat 1, and a hexagonal block 25 is provided inside the limiting groove 11.
[0025] Among them, the connecting seat 1 serves as the basic bearing component for track docking. The limiting groove 11 at one end of the connecting seat 1 matches the end shape of the docking block 12. During docking, one end of the docking block 12 is inserted into the limiting groove 11 to form a preliminary fitting and positioning. This fitting structure can limit the lateral displacement of the docking block 12 in the horizontal direction, providing a basic positioning for the subsequent locking of the fixing mechanism 2.
[0026] The fixing mechanism 2 is the core component for achieving rigid track connection. Its concave seat 21 is fixed to one side of the connecting seat 1 by welding or bolts, forming a stable mounting base. A cylinder 22 is vertically mounted on the upper end of the concave seat 21, and its protruding end extends horizontally through one end of the concave seat 21 and is rigidly connected to one end of the hexagonal block 25. The upper end of the mating block 12 has a hexagonal hole 23 that corresponds to the hexagonal holes 24 that are opened at the upper and lower ends of the connecting seat 1. When the mating block 12 is inserted into the limiting groove 11, the hexagonal hole 23 and the hexagonal hole 24 are aligned. When the axis of 4 coincides, cylinder 22 is activated, and its extended end pushes hexagonal block 25 to move horizontally until hexagonal block 25 is simultaneously inserted into hexagonal hole 24 and hexagonal hole 23. Due to the anti-torsion characteristics of the hexagonal structure, the relative rotation between connecting seat 1 and docking block 12 can be effectively restricted. With the interlocking effect of limiting groove 11, the two are rigidly locked in three-dimensional space. When separation is required, cylinder 22 retracts in the opposite direction, driving hexagonal block 25 to be pulled out from hexagonal hole 23 and hexagonal hole 24, thus releasing the locked state.
[0027] like Figure 2 and Figure 3 As shown, one end of the concave seat 21 is fixed to one side of the connecting seat 1, and the hexagonal block 25 is inserted into the interior of the hexagonal hole 24 and the hexagonal hole 23. The protruding end of the cylinder 22 passes through one end of the concave seat 21 and is fixed to one end of the hexagonal block 25. The hexagonal block 25 can be inserted into the interior of the hexagonal hole 24 and the hexagonal hole 23.
[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the guiding mechanism 3 includes a double-headed cylinder 31. Guide plates 32 are mounted on both telescopic ends of the double-headed cylinder 31. Grooves 33 are formed on both inner side walls of the limiting groove 11. Concave plates 34 are installed inside both sets of grooves 33. Push rods 35 are inserted through the upper and lower ends of the connecting seat 1. Multiple sets of rollers 37 are rotatably installed inside both sets of concave plates 34. The guiding mechanism 3 is used for precise guidance when the docking block 12 is inserted into the limiting groove 11, while reducing frictional resistance during insertion. The double-headed cylinder 31 is horizontally fixed to one side of the connecting seat 1, and the two telescopic ends are respectively connected to the two sets of guide plates 32, forming a symmetrical drive structure. The grooves 33 on both inner side walls of the limiting groove 11 provide storage space for the concave plates 34. Multiple sets of rollers 37 are rotatably installed inside the concave plates 34. The axis of the rollers 37 is set in the vertical direction, and their outer circular surface slightly protrudes from the inner wall of the groove 33.
[0029] like Figure 1 , Figure 2 and Figure 4As shown, one end of the double-headed cylinder 31 is fixed to one side of the connecting seat 1, one end of each of the two sets of push rods 35 is fixed to one end of each of the two sets of guide plates 32, and the other end of each of the two sets of push rods 35 is fixed to one end of each of the two sets of concave plates 34. When the docking block 12 is ready to be inserted, the double-headed cylinder 31 is activated, and its two telescopic ends extend synchronously. Through the guide plates 32 and push rods 35, the two sets of concave plates 34 are pushed to move towards the center of the limiting groove 11 until the two rollers 37 on both sides contact the two sides of the docking block 12.
[0030] like Figure 2 and Figure 4 As shown, guide rods 36 are slidably installed through the upper and lower ends of the connecting seat 1. One end of the two sets of guide rods 36 is fixed to one end of the two sets of guide plates 32, and the other end of the two sets of guide rods 36 is fixed to one end of the two sets of concave plates 34. The guide rods 36 slidably installed through the upper and lower ends of the connecting seat 1 are rigidly connected to the guide plates 32 and the concave plates 34 at their two ends, respectively, which can ensure that the concave plates 34 move smoothly in the horizontal direction. The push rod 35 is set parallel to the guide rods 36 to further enhance the transmission stability between the guide plates 32 and the concave plates 34.
[0031] like Figure 1 and Figure 2 As shown, one end of the docking block 12 is inserted into the interior of the limiting groove 11, wherein the accuracy of the insertion trajectory is ensured during the process of the docking block 12 being inserted into the limiting groove 11.
[0032] The usage and working principle of this device: Track pre-installation state: The docking block 12 is fixed to the end of one section of temporary track by bolts or welding, and the connecting seat 1 is fixed to the end of the other section of temporary track. This ensures that when docking, you only need to push the two sections of track close together to drive the docking block 12 to cooperate with the connecting seat 1.
[0033] Guidance and positioning stage:
[0034] As the two temporary tracks begin to approach and dock, the guide mechanism 3 is activated first, providing precise guidance for the docking block 12. The specific process is as follows:
[0035] Guide mechanism 3 is started: The double-headed cylinder 31 is started through the construction control system (or manually triggered). The two telescopic ends of the double-headed cylinder 31 extend outward synchronously, driving the two sets of guide plates 32 connected to it to move horizontally.
[0036] Concave plate 34 extends synchronously: When the guide plate 32 moves, the push rod 35 and guide rod 36 connected at both ends drive the two sets of concave plate 34 to extend from the groove 33 toward the center of the limiting groove 11 synchronously. Since the guide rod 36 and the connecting seat 1 slide through, the movement trajectory of the concave plate 34 can be restricted, ensuring that the two sets of concave plate 34 always remain parallel and symmetrically distributed on both sides of the limiting groove 11.
[0037] Roller 37 clamping guide: When the concave frame plate 34 extends to the preset position, the double-headed cylinder 31 stops operating. At this time, the rollers 37 inside the two sets of concave frame plates 34 form a "clamping guide channel" - the outer circular surface of the roller 37 protrudes slightly from the inner wall of the limiting groove 11, and the distance between the two rollers 37 matches the width of the docking block 12.
[0038] Precise insertion of docking block 12: Push the track connected to docking block 12 so that the end of docking block 12 is aligned with the limiting groove 11 of connecting seat 1. During the insertion process, the two sides of docking block 12 contact the two rollers 37. The rollers 37 rotate synchronously due to the movement of docking block 12, converting the sliding friction between docking block 12 and the inner wall of limiting groove 11 into rolling friction, greatly reducing the insertion resistance. At the same time, the clamping effect of the two rollers 37 can limit the lateral displacement of docking block 12 in the horizontal direction, ensuring that docking block 12 is smoothly inserted into the limiting groove 11 along the preset trajectory until the end of docking block 12 fits against the bottom of the limiting groove 11, completing the initial positioning.
[0039] Locking and fixing phase:
[0040] After the docking block 12 completes its initial positioning within the limiting groove 11, the fixing mechanism 2 is activated to achieve rigid locking between the connecting seat 1 and the docking block 12. The specific principle is as follows:
[0041] Hole alignment detection: After the mating block 12 is fully inserted into the limiting groove 11, the hexagonal hole 23 at its upper end is automatically aligned with the hexagonal hole 24 at the upper and lower ends of the connecting seat 1. Due to the precise guidance of the guide mechanism 3 and the fitting positioning of the limiting groove 11, the axis lines of the hexagonal hole 23 and the hexagonal hole 24 can be completely coincident without manual adjustment.
[0042] Hexagonal block 25 insertion and locking: Activate cylinder 22. The extended end of cylinder 22 pushes hexagonal block 25 to move horizontally. Hexagonal block 25 first passes through hexagonal hole 24 of connecting seat 1, and then continues to be inserted into hexagonal hole 23 of mating block 12 until one end of hexagonal block 25 is in contact with the inner wall of concave seat 21 (or the cylinder reaches its maximum stroke). Cylinder 22 stops moving.
[0043] Rigid fixing and forming: Since the hexagonal block 25 and the hexagonal hole 1 23 and hexagonal hole 24 are all hexagonal structures, the relative rotation between the connecting seat 1 and the docking block 12 can be effectively restricted (torsional resistance); at the same time, the insertion of the hexagonal block 25 can prevent the docking block 12 from coming out of the limiting groove 11. With the limiting groove 11 restricting the docking block 12 laterally, the connecting seat 1 and the docking block 12 are finally rigidly fixed in three-dimensional space, thereby completing the stable docking of the two temporary tracks.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A rapid docking mechanism for temporary tracks in subway construction, characterized in that, include: Connecting seat (1) and docking block (12), one end of the connecting seat (1) is provided with a limiting groove (11), a fixing mechanism (2) is provided on one side of the connecting seat (1), and a guiding mechanism (3) is provided at the upper and lower ends of the connecting seat (1). The fixing mechanism (2) includes a concave seat (21), a cylinder (22) is installed at the upper end of the concave seat (21), a hexagonal hole (23) is opened through the upper end of the docking block (12), a hexagonal hole (24) is opened through the upper and lower ends of the connecting seat (1), and a hexagonal block (25) is provided inside the limiting groove (11).
2. The rapid docking mechanism for temporary subway construction tracks according to claim 1, characterized in that: One end of the concave seat (21) is fixed to one side of the connecting seat (1), the hexagonal block (25) is inserted into the interior of the hexagonal hole two (24) and the hexagonal hole one (23), and the protruding end of the first cylinder (22) passes through one end of the concave seat (21) and is fixed to one end of the hexagonal block (25).
3. The rapid docking mechanism for temporary subway construction tracks according to claim 1, characterized in that: The guiding mechanism (3) includes a double-headed cylinder (31), and guide plates (32) are installed on both telescopic ends of the double-headed cylinder (31). Grooves (33) are opened on both sides of the inner side wall of the limiting groove (11). Concave plates (34) are provided inside the two sets of grooves (33). Push rods (35) are inserted through the upper and lower ends of the connecting seat (1). Multiple sets of rollers (37) are rotatably installed inside the two sets of concave plates (34).
4. The rapid docking mechanism for temporary subway construction tracks according to claim 3, characterized in that: One end of the double-headed cylinder (31) is fixed to one side of the connecting seat (1), one end of the two sets of push rods (35) is fixed to one end of the two sets of guide plates (32) respectively, and the other end of the two sets of push rods (35) is fixed to one end of the two sets of concave plates (34) respectively.
5. The rapid docking mechanism for temporary subway construction tracks according to claim 3, characterized in that: Guide rods (36) are slidably installed through the upper and lower ends of the connecting seat (1). One end of the two sets of guide rods (36) is fixed to one end of the two sets of guide plates (32), and the other end of the two sets of guide rods (36) is fixed to one end of the two sets of concave plates (34).
6. The rapid docking mechanism for temporary subway construction tracks according to claim 1, characterized in that: One end of the docking block (12) is inserted into the inside of the limiting groove (11).