Rotating indication mechanism, level crossing barrier mechanism, and method for determining discrete signal thereof

Abstract

The present invention relates to the field of traffic protection devices, and provides a rotating indication mechanism, a level crossing barrier mechanism, and a method for determining a discrete signal thereof. The rotating indication mechanism comprises a top plate movably disposed on a surface of a barrier main shaft and a trigger mechanism which is arranged on the top plate and cooperates with an indication switch; the trigger mechanism comprises a cam and a torsion spring, a first groove is provided on a side of the top plate close to the switch, the cam is rotatably arranged in the first groove by means of a rotating shaft, a second groove is provided within the first groove near a middle section of a side of the top plate, an opening is provided at a middle section of the cam on a side away from a cross-section of the cam, and the torsion spring is annularly arranged on the rotating shaft at a middle section of the opening of the cam and abuts against the second groove; and the indication switch makes and breaks a circuit by means of engagement with the cross-section of the cam and the torsion spring. An adjustable protruding surface is arranged on the barrier main shaft, so as to make the barrier main shaft more accurate in a horizontal or vertical position, and to better facilitate on-site installation and maintenance; and a buffer structure is arranged on the protruding surface of the barrier main shaft, allowing contacts of the indication switch to achieve greater travel, thereby making barrier-in-position indications more reliable and stable.

Description

Rotary indicating mechanism, barrier machine and switch quantity determination method thereof TECHNICAL FIELD

[0001] The present application belongs to the field of traffic protection equipment, in particular to a rotary indicating mechanism, a barrier machine and a switch quantity determination method thereof. BACKGROUND

[0002] In the barrier machine widely used in the railway crossing, the indicating system is an important information feedback for the lifting / falling of the barrier, and the barrier performs a rotary motion. The commonly used indicating switch is a rotary cam that lifts the switch. The system collects the corresponding switch quantity to obtain the lifting / falling information of the crossing.

[0003] Currently known defect 1: the rotary cam does not have adjustability, resulting in that the barrier is not accurate enough in the horizontal or vertical position.

[0004] Currently known defect 2: when the indicating switch is lifted by the rotary cam, the stagnation point is the critical point of the mechanical switch. This point will cause the indicating switch quantity to change under certain external force (strong wind to barrier shaking), resulting in that the system cannot collect accurate barrier information state. SUMMARY

[0005] In view of the above problems, the present application provides a rotary indicating mechanism, which comprises a movable top plate arranged on the surface of a barrier main shaft and a trigger mechanism arranged on the top plate and matched with an indicating switch.

[0006] The trigger mechanism comprises a cam and a torsional spring. A first recess is formed on the side of the top plate close to the indicating switch. The cam is rotatably arranged in the first recess through a rotating shaft. A second recess is formed in the middle of the first recess close to the top plate. An opening is formed in the middle of the rotating shaft of the cam away from the cam section. The torsional spring is annularly arranged on the rotating shaft of the opening in the middle of the cam and abuts against the second recess.

[0007] The indicating switch is opened and closed through the cooperation of the cam section and the torsional spring.

[0008] Further, a through hole is formed at the axial ends of the top plate. A threaded hole is formed on the barrier main shaft. The top plate is movably arranged on the surface of the barrier main shaft through the cooperation of the through hole and the threaded hole by a bolt assembly.

[0009] Further, the diameter of the through hole is larger than that of the bolt assembly. The top plate is movably arranged on the surface of the barrier main shaft through the cooperation of the bolt assembly and the threaded hole.

[0010] Further, a triangular sawtooth surface is formed on the surface of the barrier main shaft. An inner sawtooth is oppositely arranged on the inner wall of the top plate relative to the triangular sawtooth surface. The top plate and the barrier main shaft are adjusted in relative angle through the meshing of the triangular sawtooth surface and the inner sawtooth.

[0011] Further, the bolt assembly comprises a bolt and an arc surface pad, the arc surface pad is arranged in the through hole by the bolt.

[0012] Further, the arc surface pad is provided with an anti-loosening sheet.

[0013] The application also provides a fence machine, which comprises the rotation indicating mechanism.

[0014] Further, the rotation indicating mechanism is arranged in two groups, and the two groups of the rotation indicating mechanism are arranged on the surface of the fence main shaft in cooperation with the indicating switch.

[0015] The application also provides a switch quantity determination method of the fence machine, which uses the rotation indicating mechanism, and the method comprises:

[0016] The fence main shaft drives the cam to rotate to contact the indicating switch, the indicating switch is extended to abut against the cam section under the action of the indicating spring and the torsion spring, and the indicating switch is turned off.

[0017] The fence main shaft drives the cam to rotate reversely, the indicating switch compresses the cam to the limit position against the torsion spring force and transitions to the edge of the top plate to lift the indicating switch, and the indicating switch is turned on.

[0018] Further, the method further comprises:

[0019] The triangular sawtooth surface opened on the surface of the fence main shaft is engaged with the inner sawtooth arranged on the inner wall of the top plate to adjust the relative angle.

[0020] The rotation indicating mechanism, the fence machine and the switch quantity determination method of the application have the adjustable convex surface arranged on the fence main shaft, small angle adjustment is performed, the position of the fence main shaft is more accurate in the horizontal or vertical position, field installation and maintenance are facilitated, the buffer structure is arranged on the convex surface of the fence main shaft, the contact of the indicating switch can release more dynamic travel, and the fence to position indication is more reliable and stable.

[0021] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims, and the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0023] Fig. 1 shows the overall structure of the fence post machine in the embodiment of the present application.

[0024] Fig. 2 shows the structure of the fence post main shaft in the embodiment of the present application.

[0025] Fig. 3(a) shows the structure of the inner side wall of the top plate in the embodiment of the present application.

[0026] Fig. 3(b) shows the structure of the outer side wall of the top plate in the embodiment of the present application.

[0027] Fig. 4 shows the connection of the bolt assembly in the embodiment of the present application.

[0028] Fig. 5 shows the structure of the trigger mechanism in the embodiment of the present application.

[0029] Fig. 6 shows the schematic diagram of the gradually extended state of the indicating roller in the embodiment of the present application.

[0030] Fig. 7 shows the cross-sectional view of the gradually extended state of the indicating roller in the embodiment of the present application.

[0031] Fig. 8 shows the cross-sectional view of the gradually lifted state of the indicating roller in the embodiment of the present application.

[0032] Fig. 9 shows the flowchart of the determination method of the fence post machine switch value in the embodiment of the present application.

[0033] In the drawings, 1 is the fence post main shaft, 1-1 is the triangular sawtooth surface, and 1-2 is the threaded hole; 2 is the top-touching mechanism, 2-1 is the top plate, 2-1-1 is the inner sawtooth, 2-1-2 is the through hole, 2-2 is the bolt assembly, 2-2-1 is the bolt, 2-2-2 is the arc surface pad, 2-2-3 is the lock washer, 2-3 is the trigger mechanism, 2-3-1 is the rotating shaft, 2-3-2 is the cam, 2-3-2-1 is the cam cross section, 2-3-3 is the torsional spring, 2-3-4 is the second groove, 2-3-5 is the opening, and 2-3-6 is the first groove; 3 is the indicating switch, and 3-1 is the indicating roller. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0035] The electric barrier machine is mainly applied to the railway and highway intersection. Before the train approaches the intersection, the railway intersection control system executes the intersection closing command. After the electric barrier machine receives the command, the electric barrier machine lowers the barrier to block the pedestrians and vehicles on the highway in the form of barrier rods, so as to ensure the safety of driving and pedestrians.

[0036] The indicating switch is important information for feedback of lifting and lowering of the barrier. The barrier executed by the barrier machine performs a rotating motion. The commonly used indicating switch is a rotating cam that lifts the switch. The system collects the corresponding switch quantity to obtain the lifting and lowering information of the intersection.

[0037] In the embodiments of the present application, the rotating indicating mechanism, the barrier machine comprising the rotating indicating mechanism and the content of determining the switch quantity through the barrier machine are described in detail.

[0038] Fig. 1 shows the overall structure of the barrier machine in the embodiments of the present application. In Fig. 1, the entire barrier machine comprises a barrier main shaft 1, a top-touching mechanism 2 and an indicating switch 3. The top-touching mechanism 2 is annularly arranged on the surface of the barrier main shaft 1, and the indicating switch 3 is realized by the rotation cooperation of the top-touching mechanism 2. The top-touching mechanism 2 comprises a top plate 2-1, a bolt assembly 2-2 and a triggering mechanism 2-3. The bolt assembly 2-2 is used to fix the top-touching mechanism 2 on the barrier main shaft 1, and the triggering mechanism 2-3 is used to trigger the indicating switch 3. It should be noted that the embodiments of the present application only describe the structure of the barrier main shaft and the realization of the switch-off, and other external structures and other communication structures of the rotation of the barrier main shaft are not specifically limited. As for the indicating switch 3 of the present application, the indicating switch 3 is provided with an internal spring and an indicating roller 3-1. The indicating roller 3-1 is used as a contact to realize the switch-off in cooperation with the top-touching mechanism 2. Other structures of the indicating switch 3 are not specifically limited. The cooperation between the internal spring and the top-touching mechanism 2 is described in detail below.

[0039] In the embodiments of the present application, the rotating indicating mechanism comprises a top plate 2-1 movably arranged on the surface of the barrier main shaft and a triggering mechanism 2-3 arranged on the top plate 2-1 and cooperating with the indicating switch. In the embodiments of the present application, the top plate 2-1 is movably arranged on the surface of the barrier main shaft, and the triggering mechanism 2-3 is arranged on the top plate 2-1 and cooperates with the indicating switch.

[0040] The trigger mechanism 2-3 comprises a cam 2-3-2 and a torsion spring 2-3-3, the top plate 2-1 is provided with a first recess 2-3-6 near the side of the indicating switch 3, the cam 2-3-2 is rotatably arranged in the first recess 2-3-6 through a rotating shaft 2-3-1, a second recess 2-3-4 is formed in the middle of the first recess 2-3-6 near the top plate 2-1, an opening 2-3-5 is formed in the middle of the cam 2-3-2 away from the cam section 2-3-2-1, and the torsion spring 2-3-3 is annularly arranged on the rotating shaft 2-3-1 in the middle of the opening of the cam 2-3-2 and abuts against the second recess 2-3-4.

[0041] The indicating switch 3 is opened and closed by cooperating with the cam section 2-3-2-1 and the torsion spring 2-3-3.

[0042] In the embodiment of the present application, the structure of the post main shaft 1 and the top plate 2 is specifically described.

[0043] Fig. 2 shows the structure schematic diagram of the post main shaft in the embodiment of the present application, in Fig. 2, the periphery of the post main shaft 1 is provided with a triangular sawtooth surface 1-1, two groups of threaded holes 1-2 are formed in the triangular sawtooth surface 1-1, and the two groups of threaded holes 1-2 are arranged on the surface of the post main shaft 1 in a staggered manner. The top plate 2-1 is arranged on the surface of the post main shaft 1 through the two groups of threaded holes 1-2 and the bolt assembly 2-2, and the two groups of post machines respectively indicate the two positions of the post machine. In the embodiment of the present application, the two positions respectively indicate the raised position and the lowered position, and are respectively controlled by the two groups of indicating switches 3. Fig. 3(b) shows the structure schematic diagram of the outer wall of the top plate in the embodiment of the present application. The top plate 2-1 is arranged in an arc shape and is arranged in a concentric arc surface with the post main shaft 1. The top plate 2-1 is provided with through holes 2-1-2 at both ends in the axial direction. The top plate 2-1 is movably arranged on the surface of the post main shaft 1 through the cooperation of the bolt assembly 2-2, the through holes 2-1-2 and the threaded holes 1-2.

[0044] Fig. 3(a) shows the structure schematic diagram of the inner wall of the top plate in the embodiment of the present application. The inner wall of the top plate 2-1 is provided with an inner sawtooth 2-2-1 which is arranged opposite to the triangular sawtooth surface 1-1. The top plate 2-1 and the post main shaft 1 adjust the relative angle through the meshing of the triangular sawtooth surface 1-1 and the inner sawtooth 2-2-1. In the embodiment of the present application, the triangular sawtooth surface 1-1 and the inner sawtooth 2-2-1 are fixed after being fitted, and the two surfaces are engaged by sawtooth. By staggering one tooth, the relative angle between the top plate 2-1 and the post main shaft 1 is controlled. In the embodiment of the present application, the angle adjustment is about 4°. As to the number of degrees of the adjustment angle, the number is only used to describe the angle between the post main shaft 1 and the top plate 2-1 in the actual application of the present application. Without departing from the premise that the relative angle is adjusted through the meshing of the sawtooth, the number is within the protection scope of the present application.

[0045] Figure 4 shows the bolt assembly connection diagram in the embodiment of the present application, the bolt assembly 2-2 in the embodiment of the present application includes the bolt 2-2-1, the arc surface pad 2-2-2, the arc surface pad 2-2-2 is arranged in the through hole 2-1-2 through the bolt 2-2-1, in the embodiment of the present application, the hole diameter of the through hole 2-1-2 is greater than the arc surface pad 2-2-2, the axial dimension of the arc surface pad 2-2-2 is greater than the axial dimension of the through hole 2-1-2, so as to ensure that the bolt assembly 2-2 can fix the top plate 2-1 and adjust the relative angle between the top plate 2-1 and the rail main shaft 1 at the same time; the bolt assembly 2-2 in the present application also includes the lock washer 2-2-3, which prevents the bolt 2-2-1 from loosening in vibration and impact.

[0046] Figure 5 shows the trigger mechanism structure diagram in the embodiment of the present application, in Figure 5, the trigger mechanism 2-3 includes the rotating shaft 2-3-1, the cam 2-3-2 and the torsion spring 2-3-3, the first recess 2-3-6 is opened on the side of the top plate 2-1 close to the switch 3, the rotating shaft 2-3-1 is arranged through the first recess 2-3-6, the cam 2-3-2 is arranged in the first recess 2-3-6 through the rotating shaft 2-3-1, in the embodiment of the present application, in order to make the cam 2-3-2 rotate smoothly, the first recess 2-3-6 contains the cam 2-3-2 on both sides and extends to the top plate 2-1 in turn, the second recess 2-3-4 is opened in the middle of the first recess 2-3-6 close to the top plate 2-1, the opening is arranged in the middle of the cam 2-3-2 away from the cam section 2-3-2-1 side, the torsion spring 2-3-3 is arranged around the opening in the middle of the cam 2-3-2 rotating shaft 2-3-1 and abuts against the second recess 2-3-4.

[0047] Figure 6 shows the schematic diagram of the indicating roller gradually extending state in the embodiment of the present application, in Figure 6(a1), the trigger mechanism 2-3 rotates to the direction of the indicating roller 3-1, at this time, the indicating roller 3-1 contacts the surface of the top plate 2-1, and the indicating roller 3-1 is still in the top-up state, Figure 6(a2) shows the top view of this state, from the top view, it can be clearly seen that the indicating roller 3-1 has not contacted the trigger mechanism 2-3, and still contacts the surface of the top plate 2-1; in Figure 6(b1), the trigger mechanism 2-3 continues to rotate to the direction of the indicating roller 3-1, at this time, the indicating roller 3-1 contacts the cam 2-3-2, and with the rotation of the top plate 2-1, the indicating roller 3-1 further contacts the cam section 2-3-2-1, at this time, the indicating roller 3-1 just contacts the cam 2-3-2, and the indicating roller 3-1 is still in the top-up state, Figure 6(b2) shows the top view of this state, from the top view, it can be clearly seen that the indicating roller 3-1 contacts the cam 2-3-2; in Figure 6(c1), when the trigger mechanism 2-3 rotates to the position where the cam 2-3-2 contacts the indicating roller 3-1, the spring force in the indicating switch 3 is greater than the torsional force of the torsion spring 2-3-3, the indicating roller 3-1 will quickly extend at the cam section 2-3-2-1, the indicating switch 3 is disconnected to disconnect the indicating system, at this time, the main shaft 1 of the wicket stops rotating, the spring force always overcomes the torsional force of the torsion spring, even if the main shaft 1 of the wicket receives some external force to slightly rotate, because the torsion spring 2-3-3 has a certain compression amount, the indicating roller 3-1 always remains in the extended state, and does not affect the disconnection of the indicating switch 3, Figure 6(c2) shows the top view of this state, from the top view, it can be clearly seen that the indicating roller 3-1 contacts the cam section 2-3-2-1, and the indicating roller 3-1 remains in the extended state.

[0048] Figure 7 shows the sectional view of the indicating roller gradually extending state in the embodiment of the present application, Figure 7(a) is the sectional view of the state of Figure 6(a1) and Figure 6(a2), at this time, the indicating roller 3-1 contacts the surface of the top plate 2-1, and the indicating roller 3-1 is in the top-up state; Figure 7(b) is the sectional view of the state of Figure 6(b1) and Figure 6(b2), at this time, the indicating roller 3-1 contacts the cam 2-3-2, and the indicating roller 3-1 is in the top-up state; Figure 7(c) is the sectional view of the state of Figure 6(c1) and Figure 6(c2), at this time, the indicating roller 3-1 contacts the cam section 2-3-2-1, and the indicating roller 3-1 is in the extended state.

[0049] Fig. 8 shows a cross-sectional view of the embodiment of the present application showing the state of the indicating roller being gradually lifted, when the reverse rotation of the main shaft 1 of the barrier, the spring force overcomes the torsion spring force to compress the cam 2-3-2 to the limit position, and the transition to the edge of the top plate 2-1 lifts the indicating roller 3-1 completely, at this time the indicating continues to rotate; Fig. 8(a) shows the indicating roller 3-1 in contact with the cam cross section 2-3-2-1, at this time the indicating roller 3-1 is in the extended state; Fig. 8(b) shows the indicating roller 3-1 in contact with the edge of the top plate 2-1, at this time the edge of the top plate 2-1 lifts the indicating roller 3-1 completely, the indicating roller 3-1 is in the lifted state; Fig. 8(c) shows the indicating roller 3-1 in contact with the surface of the top plate 2-1, as the reverse rotation of the top plate 2-1, the indicating roller 3-1 is in contact with the surface of the top plate 2-1, at this time the indicating roller 3-1 still remains in the lifted state.

[0050] The embodiment of the present application also provides a barrier machine, which comprises the rotating indicating mechanism, and further comprises the main shaft 1 of the barrier, and the buffer structure is arranged on the convex surface of the main shaft, so that the contact of the indicating switch releases more dynamic range, and the indicating of the barrier to the position is more reliable and stable.

[0051] The embodiment of the present application also provides a barrier machine switch quantity determination method, and Fig. 9 shows the flowchart of the barrier machine switch quantity determination method, which comprises the following steps.

[0052] The main shaft 1 of the barrier drives the cam 2-3-2 to rotate to be in contact with the indicating switch 3, the indicating switch 3 is extended to be in contact with the cam cross section 2-3-2-1 under the action of the indicating spring and the torsion spring 2-3-3, and the indicating switch 3 is disconnected.

[0053] The main shaft 1 of the barrier drives the cam 2-3-2 to rotate reversely, the indicating switch 3 compresses the cam 2-3-2 to the limit position against the force of the torsion spring 2-3-3 and is lifted by the edge of the top plate 2-1, and the indicating switch 3 is connected.

[0054] In the embodiment of the present application, the method further comprises adjusting the relative angle by the engagement of the triangular sawtooth surface 1-1 opened on the surface of the main shaft 1 of the barrier and the inner sawtooth 2-1-1 arranged on the inner wall of the top plate 2-1.

[0055] The rotating indicating mechanism, the barrier machine and the switch quantity determination method of the present application adjust the convex surface on the main shaft of the barrier to make the main shaft of the barrier more accurate in the horizontal or vertical position, which is convenient for on-site installation and maintenance; meanwhile, the buffer structure arranged on the convex surface of the main shaft of the barrier can make the contact of the indicating switch release more dynamic range, and the indicating of the barrier to the position is more reliable and stable.

[0056] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood that modifications can be made to the foregoing embodiments, or additional implementations can be implemented, without departing from the spirit and scope of the inventive subject matter. Accordingly, the present application is not limited to the implementations described herein, but is intended to be defined by the claims set forth below, and equivalents thereof.

Claims

1. A rotary display mechanism, characterized in that, The rotary indicator mechanism includes a top plate movably mounted on the surface of the main shaft of the railing and a trigger mechanism mounted on the top plate that cooperates with the indicator switch; wherein, The triggering mechanism includes a cam and a torsion spring. A first groove is formed on the top plate near the side of the indicator switch. The cam is rotatably disposed in the first groove via a rotating shaft. A second groove is formed in the first groove near the middle of the top plate side. An opening is formed in the middle of the cam on the side away from the cam cross-section. The torsion spring is ringed on the rotating shaft in the middle of the cam opening and abuts against the second groove. The indicator switch is turned on and off by cooperating with the cam cross-section and the torsion spring.

2. The rotary display mechanism according to claim 1, characterized in that, The top plate has through holes at both ends along its axial direction, and the main shaft of the railing has threaded holes. The top plate is movably mounted on the surface of the main shaft of the railing through the cooperation of bolt assemblies, through holes and threaded holes.

3. The rotary display mechanism according to claim 2, characterized in that, The diameter of the through hole is larger than that of the bolt assembly, and the top plate is movably mounted on the surface of the main shaft of the railing through the engagement of the bolt assembly and the threaded hole.

4. The rotary display mechanism according to claim 2, characterized in that, The main shaft of the railing has a triangular sawtooth surface, and the inner wall of the top plate has an inner sawtooth surface opposite to the triangular sawtooth surface. The relative angle between the top plate and the main shaft of the railing is adjusted by the meshing of the triangular sawtooth surface and the inner sawtooth.

5. The rotary display mechanism according to claim 2, characterized in that, The bolt assembly includes a bolt and an arc-shaped washer, the arc-shaped washer being disposed within the through hole by the bolt.

6. The rotary display mechanism according to claim 5, characterized in that, The surface of the arc-shaped pad is provided with anti-loosening strips.

7. A logging machine, characterized in that, Includes the rotary display mechanism as described in any one of claims 1-6.

8. The logging machine according to claim 7, characterized in that, The rotating indicator mechanism is provided in two sets, and the two sets of rotating indicator mechanisms are respectively arranged on the surface of the main shaft of the railing in cooperation with the indicator switch.

9. A method for determining the switching quantity of a log-keeping machine, characterized in that, Using the rotary display mechanism according to any one of claims 1-6, the method comprises: The main shaft of the railing drives the cam to rotate until it contacts the indicator switch. Under the action of the indicator spring and the torsion spring, the indicator switch extends and abuts against the cross-section of the cam, indicating that the indicator switch is off. The main shaft of the railing drives the cam to rotate in the opposite direction, indicating that the switch overcomes the torsion spring force, compresses the cam to its limit position, and transitions to the edge of the top plate, which indicates that the switch is lifted up, indicating that the switch is turned on.

10. The method for determining the switching quantity of a log-keeping machine according to claim 9, characterized in that, The method further includes: The relative angle is adjusted by the engagement of the triangular sawtooth surface on the main shaft of the railing with the inner sawtooth on the inner wall of the top plate.

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