Turnout locking device and turnout using same

Abstract

The utility model discloses a turnout locking device which comprises a pin shaft, a shaft sleeve, a detection triggering part and a detector, wherein the pin shaft and the shaft sleeve are arranged on two adjacent turnout units of a turnout respectively, the detection triggering part is connected to the turnout unit where the shaft sleeve is located in a sliding mode, and the detector is arranged on a turnout foundation and can be matched with the detection triggering part. Wherein the pin shaft can penetrate through the shaft sleeve, so that the turnout is guided to a correct position, and then the pin shaft further moves relative to the shaft sleeve to push the detection triggering component to be connected with or close to the detector so as to trigger the detector to carry out locking state monitoring. And the detection triggering part can be automatically reset when not bearing the thrust of the pin shaft. By adopting the turnout locking device, the turnout can be kept in a theoretical line shape under the condition of bearing the impact force of a vehicle, the in-place condition of the locking device can be detected, and a locking or unlocking signal is sent according to the in-place condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, especially a turnout locking device and use its turnout. BACKGROUND

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute the prior art.

[0003] With the continuous development of economy, the city population is more and more dense, and the traffic problem caused by road congestion not only affects the normal life of urban residents, but also causes certain pollution to the environment. The emergence of straddle-type monorail traffic and low-speed maglev traffic and other rail transit systems greatly alleviates the problem of traffic congestion. Among them, the low-speed maglev traffic system will play an important role in the future development of urban rail transit due to its own characteristics, especially it may become an important choice for some cities that are not easy to build subways due to geological conditions, and will inevitably become a widely used rail public transport tool for urban, urban, short-distance intercity and tourist traffic connection, and has extremely broad market prospects. The embedded maglev traffic system has the advantages of high structural rigidity, high transportation capacity, fast running speed, low comprehensive energy efficiency, strong climbing ability, small turning radius, fast acceleration, small magnetic radiation and noise, etc. It can be widely applied to more than 90% of the urban rail transit market range of subway, light rail, urban rapid rail, short-distance intercity and tourist traffic, and can fully replace the traditional urban rail transit system, realizing the revolution of urban rail transit development.

[0004] In the train organization of rail transit, in order to meet the needs of train crossover on different tracks, turnout is needed to realize train crossover on different tracks. The turnout involved in the utility model is different from the turnout of other wheel-rail traffic systems, which adopts multiple short straight line units to fit multiple curvature radius turnout curves. In order to ensure the stable operation of the turnout system, each short straight line unit must be stable and reliable in its own station. However, the locking effect of the existing turnout locking device is difficult to guarantee, and it has many installation bolts, high interchangeability requirement of bolt holes, and steel structure of bearing components, which is bulky. UTILITY MODEL CONTENTS

[0005] The utility model provides a turnout locking device for the above-mentioned problems, which can keep the turnout in theoretical linear shape under the condition of bearing the impact force of the vehicle, and can detect the position of the locking device and send a locking or unlocking signal accordingly

[0006] The utility model discloses a turnout locking device, the turnout locking device is applicable to the turnout including a plurality of turnout units, wherein the adjacent two turnout units can move relative to each other, and the characteristics are that:

[0007] The switch locking device comprises a pin shaft (5) and a shaft sleeve (11) respectively arranged on two adjacent switch units of a switch, a detection triggering component (9) slidingly connected to the switch unit where the shaft sleeve (11) is arranged, and a detector arranged on the switch base and capable of cooperating with the detection triggering component (9).

[0008] The pin shaft (5) can penetrate the shaft sleeve (11), thereby guiding the switch to the correct position, and further movement of the pin shaft (5) relative to the shaft sleeve (11) pushes the detection triggering component (9) to engage or approach the detector to trigger the detector to monitor the locking state, and the detection triggering component (9) can be automatically reset when not subjected to the pushing force of the pin shaft (5).

[0009] Further, the shaft sleeve is nested in a shaft sleeve seat connected to the switch unit, and the shaft sleeve can slide radially in the shaft sleeve seat.

[0010] Further, the shaft sleeve and the shaft sleeve seat do not produce axial relative displacement.

[0011] Further, the inner hole of the shaft sleeve and the head end of the pin shaft have a taper surface for guiding the pin shaft.

[0012] Further, the shaft sleeve is made of impact-resistant wear-resistant material, and the pin shaft is made of stainless steel round steel.

[0013] Further, the pin shaft is slidingly matched with a guide device arranged on the switch unit.

[0014] Further, the guide device is connected with a stroke calibration rod with a plurality of travel switches, and the pin shaft is provided with a tab for triggering the travel switches.

[0015] Further, the pin shaft is driven by an electric push rod mounted on the switch unit.

[0016] Further, the detector is an inductive proximity switch connected with a switch control system.

[0017] Further, the switch locking device is equipped with at least two detectors.

[0018] Further, the detection triggering component can be automatically reset by a spring when not subjected to the pushing force of the pin shaft.

[0019] Further, the detection triggering component has a limiting block at both ends and its rod body penetrates a rod sliding seat connected to the switch unit, and a spring is sleeved on the rod body and limited between the rod sliding seat and the limiting block at one end.

[0020] Furthermore, the turnout locking device includes a control system communicatively connected to the detector to electrically allow vehicles to pass in response to a detection signal from the detector.

[0021] This utility model also provides a turnout, the turnout comprising multiple turnout units, characterized in that: any of the above-mentioned turnout locking devices are installed on two adjacent turnout units.

[0022] Furthermore, the turnout is a maglev turnout.

[0023] By comprehensively adopting the above technical solutions, this utility model can achieve the following beneficial effects:

[0024] 1. It can maintain the theoretical alignment of the turnout while withstanding the impact force of vehicles;

[0025] 2. It can detect the position of the locking device and send a locking or unlocking signal accordingly. Attached Figure Description

[0026] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0027] Figure 1 These are schematic diagrams of the overall structure of the turnout locking device in the unlocked state in some embodiments;

[0028] Figure 2 yes Figure 1 A magnified view of the central bushing area;

[0029] Figure 3 yes Figure 2 A cross-sectional view of the central bushing at point AA;

[0030] Figure 4 This is a schematic diagram of the overall structure of the turnout locking device in the locked state in some embodiments.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Turnout unit (moving section), 2-Turnout unit (fixed section), 3-Electric push rod, 4-Inductive proximity switch, 5-Pin shaft, 6-Limit switch, 7-Guide device, 8-Pulley, 9-Detection triggering component, 10-Spring, 11-Busset, 12-Busset seat. Detailed Implementation

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application.

[0034] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] In the drawings of the present application, it should be understood that different technical features which are not mutually alternative are shown in the same drawing, and are only for the convenience of simplifying the drawing description and reducing the number of drawings, and do not indicate or imply that the embodiments described with reference to the drawings contain all the technical features in the drawings, and therefore cannot be understood as limiting the present application.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The turnout locking device disclosed by the present application can be used on the turnout of an embedded magnetic levitation transportation system, and the turnout is composed of a turnout unit, a movable joint, a turnout guide rail, a turnout plate, a driving device, a tensioning device, a turnout locking device and the like; the turnout unit is located above the turnout foundation, and the turnout foundation can be a concrete foundation.

[0038] In some embodiments, the utility model discloses a turnout locking device relates to two adjacent turnout units, one is the turnout unit of fixed section, another is the turnout unit of movable section, be equipped with pin shaft 5 on the turnout unit of fixed section, movable section's turnout unit is fixedly connected with the shaft sleeve 11 and is slidably connected with detection trigger part 9, and the detector is also equipped on the turnout foundation corresponding with detection trigger part 9, pin shaft 5 can pass through shaft sleeve 11 and carry out the locking of turnout and promote detection trigger part 9 to be close to the detector and carry out locking state monitoring, detection trigger part 9 can be automatically reset when not bearing the thrust of pin shaft 5, such as through spring 10 automatic reset, such as Figures 1-4 As shown.

[0039] In some embodiments, the shaft sleeve 11 is nested in the shaft sleeve seat 12 connected to the turnout unit, and the shaft sleeve 11 can slide radially in the shaft sleeve seat 12, thereby allowing vertical (or other radial) deviation generated during manufacturing and installation. In at least one embodiment, the shaft sleeve 11 and the shaft sleeve seat 12 do not produce axial relative displacement, thereby improving the positioning accuracy of the turnout.

[0040] In some embodiments, the inner hole of the shaft sleeve 11 and the head end of the pin shaft 5 (used for inserting the shaft sleeve) have a taper surface for guiding the pin shaft 5, which can improve the fault tolerance performance of the locking device and reduce the precision requirement of the driving system. In some embodiments, the shaft sleeve 11 is made of wear-resistant material with good impact resistance, which has the advantages of long service life and can prolong the service life of the locking device; the pin shaft 5 is made of stainless steel round steel, which has the advantages of simple processing and superior mechanical comprehensive performance.

[0041] In some embodiments, the pin shaft 5 is slidably connected with the guide device 7 provided on the turnout unit, which is used to ensure the unique movement position of the pin shaft 5 and sufficient connection strength between the pin shaft 5 and the fixed section turnout unit. In at least one embodiment, the guide device 7 is connected with a stroke calibration rod having two travel switches 6, and the pin shaft 5 is provided with a tab 8 for actuating the travel switches 6, which can realize monitoring the action of the locking device and monitoring whether the pin shaft 5 is working normally; the two travel switches 6 correspond to the starting position and the ending position of the pin shaft 5 sliding, respectively, and the pin shaft 5 drives the tab 8 to move between the two travel switches 6 when sliding. In at least one embodiment, the pin shaft 5 is driven by an electric push rod 3 installed on the turnout unit.

[0042] In some embodiments, the detector is an inductive proximity switch 4 connected with the turnout control system, for monitoring whether the pin shaft 5 is working in place, when the pin shaft 5 pushes the detection trigger component 9 close to the inductive proximity switch 4, the inductive proximity switch 4 can send an electrical signal when the distance between them meets the requirements. In some embodiments, a set of turnout locking device is equipped with at least two detectors to realize redundant monitoring of whether the turnout is locked; for example, equipped with three detectors, the three detectors work at the same time to determine that the turnout has been effectively locked, effectively improving the safety performance of the turnout.

[0043] In some embodiments, the detection trigger component 9 has a limiting block or a limiting rod at both ends, the rod body of the detection trigger component 9 penetrates the rod slide seat connected on the turnout unit, and the spring 10 is sleeved on the rod body of the detection trigger component 9 and limited between the rod slide seat and the limiting block or the limiting rod at one end.

[0044] The utility model discloses still disclose a kind of turnout of using above-mentioned any turnout locking device, it is magnetic levitation turnout, further it is the turnout for embedded magnetic levitation traffic system. In some embodiments, to adapt to the requirement of standardized design of embedded magnetic traffic system, the length of turnout is consistent with the length of track beam or is twice the length of track beam. Locking device is an important component of magnetic levitation turnout, mainly used for positioning and locking after turnout unit switching. Precise positioning and locking can guarantee the linear accuracy of turnout and the smooth transition with track beam, and its reliability directly affects the smooth running and driving safety of magnetic levitation train.

[0045] At least one exemplary embodiment is provided in combination with the drawings, and the detailed description of the exemplary embodiment provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents the exemplary embodiment provided in the utility model.

[0046] Exemplary embodiment 1

[0047] Referring to Figures 1-4 , the present exemplary embodiment specifically relates to a kind of turnout locking device, it is composed of electric push rod 3, inductive proximity switch 4, pin shaft 5, travel switch 6, guiding device 7, pullout piece 8, detection trigger component 9, spring 10, shaft sleeve 11, shaft sleeve seat 12 etc. component.The above-mentioned turnout locking device is a new type of turnout locking device, after turnout switching, the movement position of turnout unit (movable section) 1 can be deviation, and turnout locking device can guide the turnout unit (movable section) 2 to return to theoretical position and lock. When vehicle passes turnout, the above-mentioned turnout locking device can make turnout keep theoretical linear under the condition of bearing vehicle impact force.

[0048] The pin shaft 5 and the power source of its action, the electric push rod 3, are installed at the bottom of the turnout unit (fixed section) 2, the shaft sleeve 11 is installed at the bottom of the turnout unit (movable section) 1, and the inductive proximity switch 4 is fixed on the concrete foundation through the bending steel plate.

[0049] The working process of the turnout locking device is as follows:

[0050] 1. When the turnout unit (movable section) 1 is switched to the position, the turnout control system sends a signal to the turnout locking device, the electric push rod 3 starts to act, and pushes the pin shaft 5 to move to the left side. At the same time, the paddle 8 connected to the pin shaft 5 also leaves the travel switch 6 on the right side, and the turnout control system is informed that the turnout locking device is working.

[0051] 2. When the position of the turnout unit (movable section) 1 is deviated, the taper structure at the end of the pin shaft 5 cooperates with the taper structure of the shaft sleeve 11, and the turnout unit (movable section) 1 can be turned back to the theoretical position.

[0052] 3. After the pin shaft 5 guides the turnout unit (movable section) 1, the pin shaft 5 continues to move to the left side and pushes the detection trigger part 9 to move to the left side until the paddle 8 touches the travel switch 6 on the left side, indicating that the pin shaft 5 reaches the specified position, the turnout control system commands the electric push rod 3 to stop acting, and when the detection trigger part 9 moves to the left side by a certain distance gap, the inductive proximity switch 4 is triggered, indicating that the turnout has been locked, and the turnout control system allows the vehicle to pass.

[0053] 4. The unlocking working process of the turnout locking device is inverse to the above steps. When the pin shaft 5 retreats to the right side, the detection trigger part 9 is reset under the action of the spring 10, and the inductive proximity switch 4 sends a signal that the turnout has been unlocked, and the turnout can be switched.

[0054] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature or any new combination disclosed in the specification, and any new method or process step or any new combination disclosed.

Claims

1. A switch locking device suitable for a switch comprising a plurality of switch units, wherein two adjacent switch units are movable relative to each other, characterized in that: the switch locking device comprises a pin shaft (5) and a bushing (11) respectively arranged on two adjacent switch units of the switch, a detection triggering component (9) slidingly connected to the switch unit where the bushing (11) is arranged, and a detector arranged on the switch base and capable of cooperating with the detection triggering component (9); wherein the pin shaft (5) can penetrate the bushing (11), thereby guiding the switch to the correct position, and then further movement of the pin shaft (5) relative to the bushing (11) pushes the detection triggering component (9) to engage or approach the detector to trigger the detector to monitor the locking state, the detection triggering component (9) can be automatically reset when not subjected to the pushing force of the pin shaft (5).

2. The turnout locking device of claim 1, wherein: The bushing (11) is nested in a bushing (11) seat connected to the switch unit, and the bushing (11) can slide radially in the bushing (11) seat.

3. The turnout locking device of claim 2, wherein: No axial relative displacement occurs between the bushing (11) and the bushing (11) seat.

4. The turnout locking device of claim 1, wherein: The inner hole of the bushing (11) and the head end of the pin shaft (5) have a taper surface for guiding the pin shaft (5).

5. The turnout locking device of claim 1, wherein: The bushing (11) is made of impact-resistant wear-resistant material, and the pin shaft (5) is made of stainless steel round steel.

6. The turnout locking device of claim 1, wherein: The pin shaft (5) is slidingly fitted with a guide device (7) arranged on the switch unit.

7. The turnout locking device of claim 6, wherein: The guide device (7) is connected with a stroke calibration rod with a plurality of travel switches (6), and the pin shaft (5) is provided with a tab (8) for triggering the travel switch (6).

8. The turnout locking device of claim 1, wherein: The pin shaft (5) is driven by an electric push rod (3) mounted on the switch unit.

9. The turnout locking device of claim 1, wherein: The detector is an inductive proximity switch (4) connected with the switch control system.

10. The turnout locking device of claim 1, wherein: The switch locking device is equipped with at least two detectors.

11. The turnout locking device of claim 1, wherein: The detection triggering component (9) can be automatically reset by a spring (10) when not subjected to the pushing force of the pin shaft (5).

12. The switch lock apparatus according to claim 11, wherein: Both ends of the detection triggering component (9) have limit blocks, and the rod body penetrates a rod sliding seat connected to the switch unit, and a spring (10) is sleeved on the rod body and limited between the rod sliding seat and the limit block at one end.

13. The turnout locking apparatus of claim 1, wherein: The switch locking device comprises a control system, which is communicatively connected with the detector to electrically allow the vehicle to pass in response to the detection signal of the detector.

14. A turnout comprising a plurality of turnout units, characterized in that: The two adjacent switch units are provided with the switch locking device according to any one of claims 1-13.

15. The turnout according to claim 14, characterized in that: The switch is a magnetic levitation switch.

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