A locking monitoring device

Abstract

The present invention belongs to the technical field of rail transit, and discloses a locking monitoring device, including a locking cylinder, a locking sleeve, a locking rod, a locking assembly and a contact sensor; the locking sleeve is sleeved on the outer side of the locking rod, and the locking rod can slide axially in the locking sleeve; the locking cylinder is sleeved on the outer side of the locking sleeve, and the locking assembly is movably arranged on the locking sleeve, and the locking rod drives the locking sleeve to slide axially along the locking cylinder through the locking assembly, and the inner wall surface of the locking cylinder is provided with a limiting groove along the circumferential direction, and the locking cylinder is provided with a contact sensor at the position of the limiting groove, and when the locking assembly is located in the limiting groove, the contact sensor is turned on, and the locking sleeve is in a relative locking state relative to the locking cylinder. The present invention provides a limiting groove and a contact sensor on the locking cylinder, and when the locking assembly is located in the limiting groove, the locking sleeve is in a relative locking state relative to the locking cylinder, and the contact sensor is triggered to turn on and transmit data to an external system, so that the switch can be confirmed to be locked successfully, and the misjudgment of the locking result can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to a locking monitoring device. Background Art

[0002] The turnout switching equipment is a mechanical device that switches and locks the point rail with the base rail, heart rail and wing rail through the switch machine.

[0003] The function of the turnout switching equipment is to switch and lock the turnouts and monitor and inspect their positions. The turnout switching monitoring equipment monitors and tests the changes in the mechanical and electrical parameters of the turnout switching equipment, provides a reliable basis for turnout maintenance, and ensures that the turnouts are in good operating condition. Therefore, ensuring the locked state of the turnout external lock is an important monitoring point to ensure the good operating condition of the turnout.

[0004] The switch machine switches the turnout by pushing / pulling the external lock. After the turnout is switched to the right position, the switch machine drives the external lock to continue to move. The movement range is the locking amount. In the prior art, the locking amount is used to ensure that the external locking device successfully locks the turnout. This method is more suitable for configuration external locking, but this method has the following problems when used for sealed external locking:

[0005] Firstly, the locking amount of the sealed external locking cannot be viewed intuitively; secondly, from the perspective of fault-oriented safety, judging the sealed external locking by the locking amount may lead to misjudgment of the locking result. Summary of the invention

[0006] In view of the above problems, the present invention provides a locking monitoring device, which adopts the following technical solutions:

[0007] A locking monitoring device comprises a locking cylinder, a locking sleeve, a locking rod, a locking assembly and a contact sensor;

[0008] Among them, the locking sleeve is sleeved on the outside of the locking rod, and the locking rod can slide axially in the locking sleeve; the locking cylinder is sleeved on the outside of the locking sleeve, and the locking assembly is movably arranged on the locking sleeve, and the locking rod drives the locking sleeve to slide axially along the locking cylinder through the locking assembly, and the inner wall surface of the locking cylinder is circumferentially provided with a limiting groove, and the locking cylinder is provided with the contact sensor at the position of the limiting groove, and when the locking assembly is located in the limiting groove, the contact sensor is turned on, and the locking sleeve is in a relatively locked state relative to the locking cylinder.

[0009] Further, the locking assembly includes a first locking block and a second locking block;

[0010] The first locking block and the second locking block are spaced apart along the axial direction of the locking sleeve, the locking rod drives the locking sleeve to slide in a first direction through the first locking block, and the locking rod drives the locking sleeve to slide in a second direction of the locking cylinder through the second locking block, and the limiting groove is arranged at one end of the locking cylinder close to the second locking block, wherein the first direction and the second direction are opposite.

[0011] Furthermore, the locking monitoring device also includes an insulating bolt, and the contact sensor is detachably connected to the locking cylinder via the insulating bolt.

[0012] Furthermore, the locking cylinder is provided with an internal threaded hole at the position of the limiting groove, and the internal threaded hole extends from the outer side surface of the locking cylinder to the limiting groove, the insulating bolt includes a head and a threaded portion connected to each other, the threaded portion is provided with an external thread along the circumferential direction, the external thread of the threaded portion is threadedly connected with the internal threaded hole, a through mounting hole is provided between the head and the threaded portion, and the contact sensor is fixedly provided in the mounting hole.

[0013] Furthermore, a plurality of the internal threaded holes are arranged along the circumference of the locking cylinder.

[0014] Furthermore, the locking cylinder is provided with a mounting plane at the position of each internal threaded hole.

[0015] Furthermore, a plurality of contact sensors are provided, and the angle between the center lines of the plurality of contact sensors is determined according to the shape of the second locking block and the angle between the plurality of second locking blocks, so that when the radial position of the second locking block moved into the limit groove changes, one or more contact sensors can still be triggered to turn on.

[0016] Furthermore, two contact sensors are provided, and the angle A between the center lines of the two contact sensors is 35° to 55° or 125° to 145°. Eight internal threaded holes and eight mounting planes are evenly distributed along the circumference of the locking cylinder, and the two contact sensors are installed in two adjacent internal threaded holes through the insulating bolts.

[0017] Furthermore, the first locking block and the second locking block have the same structure, the first locking block and the second locking block are arranged in a fan shape, and the four first locking blocks and the four second locking blocks are evenly distributed along the circumference of the locking rod.

[0018] Further, the side wall of the locking sleeve is radially penetrated with a first through hole and a second through hole, the first through hole and the second through hole are spaced apart along the axial direction of the locking sleeve, the first locking block is slidably set in the first through hole, the second locking block is slidably set in the second through hole, and the outer side wall of the locking rod is circumferentially provided with an annular first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are spaced apart along the axial direction of the locking rod, the bottom end of the first locking block can slide in the first sliding groove, and the bottom end of the second locking block can slide in the second sliding groove.

[0019] Furthermore, a connecting ring is provided on the outer wall of the locking cylinder, and a connecting portion is provided at one end of the locking rod close to the second locking block.

[0020] Beneficial effects of the present invention:

[0021] 1. The locking monitoring device of the embodiment of the present invention is provided with a limit groove and a contact sensor on the locking cylinder. When the locking assembly is located in the limit groove, the locking sleeve is in a relatively locked state relative to the locking cylinder. The contact sensor is triggered to connect and transmit data to the external system, thereby confirming that the switch is locked successfully and avoiding misjudgment of the locking result.

[0022] 2. In the embodiment of the present invention, the contact sensor is fixed to the locking cylinder by means of insulating bolts. The insulating bolts form insulation between the contact sensor and the locking cylinder, and are used in insulation scenarios such as lightning protection.

[0023] 3. In the embodiment of the present invention, the angle between the center lines of the multiple contact sensors is determined according to the shape of the second locking block and the angle between the multiple second locking blocks. The second locking block can be passively rotated to any position to successfully monitor and avoid monitoring blind spots.

[0024] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 shows an axonometric view of a locking monitoring device according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the installation of a locking rod, a first locking block, and a second locking block according to an embodiment of the present invention is shown;

[0028] Figure 3 It shows a structural schematic diagram of a locking monitoring device when a turnout is in an unlocked state according to an embodiment of the present invention;

[0029] Figure 4 Shows Figure 3 Schematic diagram of the cross section at CC;

[0030] Figure 5 A schematic structural diagram of an insulating bolt according to an embodiment of the present invention is shown;

[0031] Figure 6 It shows a structural schematic diagram of a locking monitoring device when a turnout is in a locked state according to an embodiment of the present invention;

[0032] Figure 7 Shows Figure 6 Schematic diagram of the cross section at DD in the middle.

[0033] In the figure: 1. locking cylinder; 2. locking sleeve; 3. locking rod; 4. first locking block; 5. second locking block; 6. contact sensor; 7. first through hole; 8. second through hole; 9. first slide groove; 10. second slide groove; 11. limiting groove; 12. first sealing member; 13. second sealing member; 14. connecting ring; 15. recess; 16. connecting part; 17. third through hole; 18. limiting boss; 19. insulating bolt; 20. internal threaded hole; 21. head; 22. threaded part; 23. mounting hole; 24. mounting plane. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second" etc. in the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged in appropriate circumstances, so that the embodiments of the present application described here. In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the orientation or positional relationship shown in the accompanying drawings.

[0036] The present invention provides a locking monitoring device, which can upload monitoring data and remotely check locking results at any time to avoid misjudgment of locking results.

[0037] like Figure 1 and Figure 2 As shown, a locking monitoring device includes a locking cylinder 1, a locking sleeve 2, a locking assembly, a second locking block 5 and a contact sensor 6.

[0038] Among them, the locking sleeve 2 is sleeved on the outside of the locking rod 3, and the locking rod 3 can slide axially in the locking sleeve 2; the locking cylinder 1 is sleeved on the outside of the locking sleeve 2, and the locking sleeve 2 can slide axially in the locking cylinder 1, and the locking assembly is movably arranged on the locking sleeve 2, and the locking rod 3 drives the locking sleeve 2 to slide axially along the locking cylinder 1 through the locking assembly.

[0039] For example, the locking assembly includes a first locking block 4 and a second locking block 5, the first locking block 4 and the second locking block 5 are axially spaced apart along the locking sleeve 2, the locking rod 3 drives the locking sleeve 2 to slide in a first direction through the first locking block 4, and the locking rod 3 drives the locking sleeve 2 to slide in a second direction along the locking cylinder 1 through the second locking block 5, wherein the first direction and the second direction are opposite.

[0040] like Figure 3 As shown, for example, a first through hole 7 and a second through hole 8 are radially penetrated through the side wall of the locking sleeve 2 , and the first through hole 7 and the second through hole 8 are spaced apart along the axial direction of the locking sleeve 2 .

[0041] The first locking block 4 is slidably disposed in the first through hole 7, and the second locking block 5 is slidably disposed in the second through hole 8. The top ends of the first locking block 4 and the second locking block 5 can both extend to the outside of the locking sleeve 2 to protrude from the outer wall of the locking sleeve 2, and the bottom ends of the first locking block 4 and the second locking block 5 can both move toward the inner cavity of the locking sleeve 2 and protrude from the inner wall of the locking sleeve 2.

[0042] like Figure 2As shown, for example, a first annular slide groove 9 and a second slide groove 10 are circumferentially arranged on the outer side wall of the locking rod 3, and the first slide groove 9 and the second slide groove 10 are axially spaced apart along the locking rod 3. The bottom end of the first locking block 4 can slide in the first slide groove 9, and the bottom end of the second locking block 5 can slide in the second slide groove 10.

[0043] like Figure 3 As shown, the inner wall surface of the locking cylinder 1 is provided with an annular limiting groove 11 along the circumferential direction. For example, the limiting groove 11 is provided at one end of the locking cylinder 1 close to the second locking block 5. The locking cylinder 1 is provided with a contact sensor 6 at the position of the limiting groove 11. When the locking assembly is located in the limiting groove 11, the contact sensor 6 is turned on, and the locking sleeve 2 is in a relatively locked state relative to the locking cylinder 1.

[0044] For example, the locking rod 3 moves axially, driving the locking sleeve 2 to move through the first locking block 4 until the second locking block 5 is located in the limiting groove 11, and the top end of the second locking block 5 is pushed into the limiting groove 11. At this time, the locking sleeve 2 is in a relatively locked state relative to the locking cylinder 1.

[0045] The contact sensor 6 monitors the approach of metal. When the top of the second locking block 5 is located in the limit groove 11, the contact sensor 6 is triggered to transmit data to the external system, which can confirm that the switch is locked successfully and avoid misjudgment of the locking result.

[0046] like Figure 6 As shown, for example, a first sealing member 12 is provided between the inner walls at both ends of the locking sleeve 2 and the outer wall of the locking rod 3, and a second sealing member 13 is provided between the inner walls at both ends of the locking cylinder 1 and the outer wall of the locking sleeve 2. When the locking rod 3 slides axially relative to the locking sleeve 2, the first sliding groove 9 and the second sliding groove 10 of the locking rod 3 are always located between the two first sealing components, so as to prevent the first sliding groove 9 and the second sliding groove 10 from extending out of the locking sleeve 2 and losing the sealing function.

[0047] like Figure 1 As shown, for example, a connecting ring 14 is provided on the outer wall of the locking cylinder 1, and the connecting ring 14 is used to connect the base rail. A plurality of recesses 15 are provided on the outer walls of both ends of the locking sleeve 2, and a wrench can be clamped on the recesses 15 to connect the locking sleeve 2 to the outside.

[0048] like Figure 1 and Figure 2 As shown, for example, a connecting portion 16 is provided at one end of the locking rod 3 close to the second locking block 5, and the connecting portion 16 has two planes parallel to each other along the axial direction. A third through hole 17 penetrating the two planes is also provided on the connecting portion 16. The locking rod 3 is connected to the switch machine through the connecting portion 16, and an annular limiting boss 18 is provided at the other end of the locking rod 3 to prevent the locking rod 3 from escaping from the locking sleeve 2.

[0049] like Figure 1 and Figure 3 As shown, for example, the locking monitoring device also includes an insulating bolt 19, and the contact sensor 6 is detachably connected to the locking cylinder 1 through the insulating bolt 19. The contact sensor 6 is fixed to the locking cylinder 1 through the insulating bolt 19, which is convenient for replacement and installation. The insulating bolt 19 forms insulation between the contact sensor 6 and the locking cylinder 1, which is used for insulation scenarios such as lightning protection. For example, the insulating bolt 19 can be made of nylon.

[0050] like Figure 4 As shown, for example, the locking cylinder 1 is provided with an internal threaded hole 20 at the position of the limiting groove 11 , and the internal threaded hole 20 extends from the outer side surface of the locking cylinder 1 to the limiting groove 11 .

[0051] like Figure 5 As shown, for example, the insulating bolt 19 includes a head 21 and a threaded portion 22 which are connected to each other. The cross section of the head 21 is hexagonal to facilitate the installation of a wrench. The threaded portion 22 is provided with an external thread along the circumferential direction. The external thread of the threaded portion 22 is threadedly connected to the internal threaded hole 20. A through mounting hole 23 is provided between the head 21 and the threaded portion 22, and the contact sensor 6 is fixedly provided in the mounting hole 23.

[0052] For example, a plurality of internal thread holes 20 are arranged along the circumference of the locking cylinder 1 . The locking cylinder 1 is provided with a plurality of internal thread holes 20 , so that the contact sensor 6 on the locking cylinder 1 can be installed at different angles, which is suitable for different installation occasions.

[0053] like Figure 1 As shown, for example, the locking cylinder 1 is provided with a mounting plane 24 at the position of each internal threaded hole 20 , and the mounting plane 24 is in contact with the bottom surface of the insulating bolt 19 , so as to facilitate the installation and fixing of the insulating bolt 19 .

[0054] For example, four first locking blocks 4 and four second locking blocks 5 are arranged at intervals along the circumference of the locking rod 3, four first through holes 7 and four second through holes 8 are arranged at intervals along the circumference of the locking sleeve 2, and a first locking block 4 is correspondingly arranged in each first through hole 7, and a second locking block 5 is correspondingly arranged in each second through hole 8.

[0055] The locking sleeve 2 and the locking rod 3 are both cylindrical and will rotate relative to the locking cylinder 1 to adapt to the creeping of the point rail. The radial positions of the first locking block 4 and the second locking block 5 will also change at any time, so it is necessary to ensure that the position of the second locking block 5 is monitored.

[0056] For example, a plurality of contact sensors 6 are provided. The plurality of contact sensors 6 are all detachably connected to the locking cylinder 1 through insulating bolts 19. The included angle between the center lines of the plurality of contact sensors 6 is determined according to the shape of the second locking block 5 and the included angle between the plurality of second locking blocks 5, so that when the radial position of the second locking block 5 moved into the limiting groove 11 changes, one or more contact sensors 6 can still be triggered to be turned on, avoiding monitoring blind spots.

[0057] As Figure 7 shown, for example, two contact sensors 6 are provided. The included angle A between the center lines of the two contact sensors 6 is 35° to 55° or 125° to 145°. The internal thread holes 20 and the mounting planes 24 are both evenly distributed eight in number along the circumferential direction of the locking cylinder 1. The two contact sensors 6 are installed in two adjacent internal thread holes 20 through insulating bolts 19.

[0058] For example, the first locking block 4 and the second locking block 5 have the same structure. The first locking block 4 and the second locking block 5 are set as sectors. The cross-section of the first locking block 4 and the second locking block 5 is octagonal. Four first locking blocks 4 and four second locking blocks 5 are both evenly distributed along the circumferential direction of the locking rod 3. The sector angle B of the first locking block 4 and the second locking block 5 is 55°, avoiding monitoring blind spots, so that the four second locking blocks 5 can be successfully monitored when rotated to any position.

[0059] The principle of avoiding monitoring blind spots is as follows: The sector angle B of the four second locking blocks 5 is set to 55° and is evenly distributed within the 360° rotation angle range. Therefore, the blind spot angle between two adjacent sector-shaped second locking blocks 5 is 35°. Then, a monitoring angle R greater than 35° and less than 90° can ensure that the contact sensor 6 detects the second locking block 5.

[0060] As Figure 3 and Figure 6 shown, the working principle of the locking monitoring device of the present invention is as follows: One end of the locking monitoring device of the present invention is locked, that is, the first locking block 4 slides in the first chute 9 and is not used for locking. The end of the locking monitoring device close to the second locking block 5 is locked; the locking rod 3 moves axially away from the locking cylinder 1. After the second locking block 5 abuts against the side wall of the second chute 10 close to the first locking block 9, at this time, the bottom of the first locking block 4 can extend out of the first through hole 7 and is located in the first chute 9. The locking rod 3 drives the locking sleeve 2 to move away from the locking cylinder 1 through the second locking block 5. The bottom of the first locking block 4 slides in the first chute 9. When the top end of the second locking block 5 is located below the limiting groove 11, the top end of the second locking block 5 is pushed into the limiting groove 11, and the bottom of the second locking block 5 slides out of the second chute 10. The locking sleeve 2 is in a locked state relative to the locking cylinder 1, and the contact sensor 6 is triggered and turned on by the second locking block 5. The signal of the contact sensor 6 being turned on is transmitted to the external system, and the external system confirms that the turnout is locked successfully according to the signal of the contact sensor 6 being turned on.

[0061] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locking monitoring device, characterized in that: It comprises a locking cylinder (1), a locking sleeve (2), a locking rod (3), a locking assembly and a contact sensor (6); The locking sleeve (2) is sleeved on the outer side of the locking rod (3), and the locking rod (3) can slide axially in the locking sleeve (2); the locking cylinder (1) is sleeved on the outer side of the locking sleeve (2), and the locking assembly is movably arranged on the locking sleeve (2); the locking rod (3) drives the locking sleeve (2) to slide axially along the locking sleeve (1) through the locking assembly; the inner wall surface of the locking sleeve (1) is provided with a limiting groove (11) along the circumferential direction; the locking sleeve (1) is provided with the contact sensor (6) at the position of the limiting groove (11); when the locking assembly is located in the limiting groove (11), the contact sensor (6) is turned on, and the locking sleeve (2) is in a relatively locked state relative to the locking sleeve (1); The locking assembly comprises a first locking block (4) and a second locking block (5); wherein the first locking block (4) and the second locking block (5) are arranged at intervals along the axial direction of the locking sleeve (2); the locking rod (3) drives the locking sleeve (2) to slide along a first direction through the first locking block (4); and the locking rod (3) drives the locking sleeve (2) to slide along a second direction of the locking cylinder (1) through the second locking block (5); and the limiting groove (11) is arranged at an end of the locking cylinder (1) close to the second locking block (5), wherein the first direction and the second direction are opposite; the end of the locking monitoring device close to the first locking block (4) is not locked, and the end close to the second locking block (5) is locked; A plurality of contact sensors (6) are provided, and the angle between the center lines of the plurality of contact sensors (6) is determined according to the shape of the second locking block (5) and the angle between the plurality of second locking blocks (5), so that when the radial position of the second locking block (5) moved into the limiting groove (11) changes, one or more contact sensors (6) can still be triggered to be turned on.

2. The lock monitoring device according to claim 1, characterized in that: The locking monitoring device also includes an insulating bolt (19), and the contact sensor (6) is detachably connected to the locking cylinder (1) via the insulating bolt (19).

3. The lock monitoring device according to claim 2, characterized in that: The locking cylinder (1) is provided with an internal threaded hole (20) at the position of the limiting groove (11), and the internal threaded hole (20) extends from the outer side surface of the locking cylinder (1) to the limiting groove (11). The insulating bolt (19) includes a head (21) and a threaded portion (22) connected to each other, and the threaded portion (22) is provided with an external thread along the circumferential direction, and the external thread of the threaded portion (22) is threadedly connected to the internal threaded hole (20). A through mounting hole (23) is provided between the head (21) and the threaded portion (22), and the contact sensor (6) is fixedly arranged in the mounting hole (23).

4. The lock monitoring device according to claim 3, characterized in that: A plurality of the internal threaded holes (20) are arranged along the circumference of the locking cylinder (1).

5. The lock monitoring device according to claim 3, characterized in that: The locking cylinder (1) is provided with a mounting plane (24) at the position of each internal threaded hole (20).

6. The lock monitoring device according to claim 5, characterized in that: Two contact sensors (6) are provided, and the included angle A of the center lines of the two contact sensors (6) is 35° to 55° or 125° to 145°. Eight internal threaded holes (20) and eight mounting planes (24) are evenly distributed along the circumference of the locking cylinder (1). The two contact sensors (6) are mounted in two adjacent internal threaded holes (20) via the insulating bolts (19).

7. The lock monitoring device according to claim 6, characterized in that: The first locking block (4) and the second locking block (5) have the same structure. The first locking block (4) and the second locking block (5) are arranged in a fan shape. The four first locking blocks (4) and the four second locking blocks (5) are evenly distributed along the circumference of the locking rod (3).

8. The lock monitoring device according to any one of claims 1 to 5, characterized in that: The side wall of the locking sleeve (2) is provided with a first through hole (7) and a second through hole (8) in the radial direction, the first through hole (7) and the second through hole (8) are arranged at intervals along the axial direction of the locking sleeve (2), the first locking block (4) is slidably arranged in the first through hole (7), and the second locking block (5) is slidably arranged in the second through hole (8), and the outer side wall of the locking rod (3) is provided with a first annular sliding groove (9) and a second sliding groove (10) in the circumferential direction, the first sliding groove (9) and the second sliding groove (10) are arranged at intervals along the axial direction of the locking rod (3), the bottom end of the first locking block (4) can slide in the first sliding groove (9), and the bottom end of the second locking block (5) can slide in the second sliding groove (10).

9. The lock monitoring device according to any one of claims 1 to 5, characterized in that: A connecting ring (14) is provided on the outer wall of the locking cylinder (1), and a connecting portion (16) is provided at one end of the locking rod (3) close to the second locking block (5).

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