A kind of railway signal equipment overhauls with electric measuring mechanism

Abstract

The utility model discloses a kind of railway signal equipment maintenance electric measuring mechanism, belong to railway signal equipment maintenance technical field, the utility model includes support frame and fixed in the middle part of support frame hand pole, electric measuring instrument is installed on the support frame, and electric measuring instrument is connected each other by conveying conductor wire and conductive disc, the conductive disc is connected each other by metal spring and electric measuring unit, and conductive disc is located inside protective cover, the movable cover of rotary opening is installed on the protective cover, the protective cover is used to protect conductive disc and electric measuring unit under non-electricity measurement state. The railway signal equipment maintenance electric measuring mechanism, by setting telescopic electric measuring unit, when being impacted by external force, the deformation of metal spring can play a buffering role, at the same time, a plurality of telescopic electric measuring units are deformed to different degrees, can be fully contacted with the surface of different shape conductor, and protective cover is set on the outside of electric measuring unit, can carry out dustproof protection under non-electricity measurement state.

Description

Technical Field

[0001] This invention relates to the field of railway signaling equipment maintenance technology, specifically to an electrical measuring mechanism for railway signaling equipment maintenance. Background Technology

[0002] Railway signaling equipment is one of the key facilities to ensure the safe and efficient operation of railway transportation. It is responsible for transmitting train operation instructions, monitoring the status of the line, and coordinating the operating intervals between trains. It plays an irreplaceable role in preventing train collisions and ensuring traffic safety. In the daily maintenance and repair of railway signaling equipment, electrical measurement is a crucial link. Electrical measurement mechanisms are used to detect the electrical parameters in the signaling equipment, such as voltage, current, and resistance, to determine whether the equipment is in normal working condition.

[0003] For example, the Chinese patent with announcement number CN217981783U, patent name: a leakage current detection device for a power transmission and distribution cable joint, and announcement date: 2022-12-06, includes a connecting shell connected to the cable joint by an installation mechanism. The top outer wall of the connecting shell is fixed with a detection box, and the detection box is provided with a leakage current detection mechanism. The leakage current detection mechanism includes a current sensor, a microprocessor, and an alarm. The installation mechanism includes a bidirectional screw and two insulating rods that are sequentially screwed to the two opposite thread ends of the bidirectional screw.

[0004] The existing technology has the following technical problems: When performing electrical testing on equipment lines, the existing testing device detects the electrical components by having the end of the probe contact the conductive area. However, the probe itself has a fixed shape, which cannot guarantee sufficient contact area with conductors of different shapes. Consequently, when the probe cannot effectively contact the conductor, it can easily affect the overall electrical test results. Furthermore, the probe is always exposed when not in use, making it prone to accumulating dust and impurities. When impurities accumulate on the probe, they may increase the resistance or even increase the risk of short circuits during the electrical test.

[0005] Therefore, we propose a measuring mechanism for the maintenance of railway signaling equipment to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a testing mechanism for railway signal equipment maintenance, to solve the problem mentioned in the background art. Currently available testing devices on the market perform electrical testing by having a testing head at the end contact a conductive area. However, the shape of the testing head is fixed, and this fixed shape cannot guarantee sufficient contact area with conductors of different shapes. Consequently, when the testing head cannot effectively contact the conductor, it easily affects the overall testing results. Furthermore, when not in use, the testing head is always exposed, making it prone to accumulating dust and impurities. When impurities accumulate on the testing head, it may increase resistance or even raise the risk of short circuits during testing.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a measuring mechanism for railway signal equipment maintenance, comprising a support frame and a handheld rod fixed in the middle of the support frame. A measuring instrument is mounted on the support frame, and the measuring instrument is interconnected with a conductive disk via a transmission wire. The conductive disk is interconnected with a measuring unit via a metal spring, and the conductive disk is located inside a protective cover. A rotatable cover is mounted on the protective cover, and a spiral spring providing a reset force is mounted on the rotating shaft of the rotatable cover. The protective cover is used to protect the conductive disk and the measuring unit in a non-measuring state. A pushing mechanism is provided below the conductive disk, which is used to push the conductive disk so that the measuring unit above the conductive disk extends out of the protective cover and contacts the conductor for measuring electricity.

[0008] Preferably, the conductive disk and the protective cover are slidably connected, and multiple electrical measuring units are evenly distributed above the conductive disk, with each electrical measuring unit being interconnected with the conductive disk through a metal spring.

[0009] By adopting the above technical solution and setting the metal spring, it can not only act as a conductor without affecting normal electrical measurement, but also the elastic deformation of the metal spring itself can provide the electrical measurement unit with expansion and contraction space, making it adaptable to more complex conductor electrical measurement.

[0010] Preferably, the movable cover and the measuring unit are located on the same vertical line, and the movable cover and the measuring unit are distributed in a one-to-one correspondence.

[0011] By adopting the above technical solution, the upward movement of the electrical measuring unit can automatically open the movable cover, exposing the electrical measuring unit to the outside.

[0012] Preferably, the pushing mechanism includes a movable push plate located below the support frame. A guide rod is fixed to the upper end of the movable push plate, and the upper end of the guide rod is connected to the lower middle of the conductive disk through an auxiliary spring. Locking holes are provided on the sides of both the movable push plate and the support frame, and locking elements are inserted into the locking holes to achieve the positioning of the movable push plate after it moves.

[0013] By adopting the above technical solution, the conductive disk can be moved upward synchronously by moving the push plate and using the guide rod.

[0014] Preferably, the movable push plate, guide rod, auxiliary spring, protective cover and movable cover are all non-conductive, and the guide rod can slide on the support frame.

[0015] By adopting the above technical solution, and by using the non-conductive setting of the movable push plate and auxiliary spring, the current on the conductive disk is prevented from being transmitted to the movable push plate through the auxiliary spring.

[0016] Preferably, a power magnetic strip is embedded on the side of the guide rod, and an inflatable bag fixed on the support frame is provided on the side of the power magnetic strip. A compression plate is fixed on the side of the inflatable bag facing the power magnetic strip, and the inflatable bag is connected to the inflatable cleaning component through a flow guide hose.

[0017] By adopting the above technical solution and setting up an inflatable cleaning component, it can contact the electrical measuring unit for cleaning after inflation and detach from the electrical measuring unit when not inflated.

[0018] Preferably, the inflatable cleaning component includes a limiting collar fixed inside the protective cover, and the inner side of the limiting collar is provided with a rubber ring that is connected to the flow guide hose. A cleaning cloth for cleaning the surface of the electrical measurement unit is fixed inside the rubber ring.

[0019] By adopting the above technical solution, the expansion of the rubber ring after inflation allows the cleaning cloth to come into contact with the measuring unit. When the measuring unit moves upward, the impurities on the measuring unit can be cleaned by the cleaning cloth.

[0020] Preferably, the side compression plate of the inflatable bag is inlaid with a magnetic block with the opposite magnetism to the power magnetic strip, and the airflow inside the inflatable bag can enter the interior of the rubber ring through the guide hose.

[0021] By adopting the above technical solution, when the power magnetic strip moves upward, the repulsive magnetic force generated by the power magnetic strip on the magnetic block on the extrusion plate enables the extrusion plate to extrude the inflatable bag.

[0022] Preferably, the rubber ring and the cleaning cloth are bonded together, and the cross-section of the cleaning cloth is set as an annular structure.

[0023] By adopting the above technical solution, the cleaning cloth and the rubber ring are bonded together, which facilitates the replacement of the cleaning cloth in the future. At the same time, the ring structure of the cleaning cloth allows the cleaning cloth to make effective contact with the measuring unit after the rubber ring expands.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the electrical measuring mechanism for railway signal equipment maintenance, by setting up a retractable electrical measuring unit, can play a buffering role when subjected to external impact through the deformation of the metal spring sheet. At the same time, multiple retractable electrical measuring units deform to different degrees, which can fully contact the conductor surface of different shapes. Furthermore, a protective cover is set on the outside of the electrical measuring unit to provide dust protection when not measuring electrical power.

[0025] 1. Equipped with a protective cover, which can shield and protect the internal conductive pad and measuring unit when not in the measuring state, thereby providing dust protection and preventing a large amount of dust from adhering and affecting the normal use of the measuring unit.

[0026] 2. Equipped with a metal spring, the metal spring's conductivity allows current to flow through the measuring unit and the metal spring to the conductive disk during electrical measurement, maintaining normal measurement function. Simultaneously, the metal spring's elasticity improves contact with complex-shaped conductors through varying degrees of deformation of multiple measuring units. Furthermore, the elastic deformation of the metal spring acts as a buffer when the measuring unit is subjected to external force.

[0027] 3. A cleaning cloth is provided. The repulsive magnetic force of the magnetic block on the extrusion plate caused by the magnetic strip makes the extrusion plate squeeze the inflatable bag. The expansion of the rubber ring after inflation brings the cleaning cloth into contact with the measuring unit. When the auxiliary spring is compressed to its limit, the guide rod continues to move, which makes the conductive disk and the measuring unit move synchronously. After the measuring unit moves, the impurities on its surface can be cleaned by the cleaning cloth. When the measuring unit extends to the limit distance outside the protective cover, the magnetic strip and the magnetic block are misaligned, the rubber ring and the inflatable bag are reset, and the cleaning cloth is separated from the measuring unit. This avoids the cleaning cloth being in constant contact with the measuring unit during testing, which would affect the normal measuring of the measuring unit. Attached Figure Description

[0028] Figure 1 This is a frontal perspective view of the present invention;

[0029] Figure 2 This is a schematic diagram of the support frame and the measuring instrument structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the protective cover and movable cover structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the transmission wire and conductive disk structure of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0033] Figure 6 This is a schematic diagram of the guide rod and auxiliary spring structure of the present invention;

[0034] Figure 7 This is a schematic diagram of the metal spring and electrical measurement unit structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the inflatable bag and the extrusion plate of the present invention;

[0036] Figure 9 This is a schematic diagram of the guide rod and power magnetic strip structure of the present invention.

[0037] In the diagram: 1. Support frame; 2. Handheld rod; 3. Tester; 4. Conveyor wire; 5. Conductive disk; 6. Metal spring; 7. Tester unit; 8. Protective cover; 9. Movable cover; 10. Moving push plate; 11. Guide rod; 12. Auxiliary spring; 13. Power magnetic strip; 14. Inflatable bag; 15. Squeezing plate; 16. Flow guide hose; 17. Limiting collar; 18. Rubber ring; 19. Cleaning cloth; 20. Locking hole. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-9Existing testing devices, when performing electrical testing during equipment line maintenance, rely on the contact between the end-mounted probe and the conductive area. However, the probe itself has a fixed shape, which cannot guarantee sufficient contact area with conductors of different shapes. Consequently, when the probe cannot effectively contact the conductor, it can easily affect the overall testing results. Furthermore, the probe is exposed when not in use, making it prone to accumulating dust and impurities. These impurities can increase resistance or even raise the risk of short circuits during testing. To address this technical problem, this embodiment discloses the following technical content: an electrical testing mechanism for railway signal equipment maintenance, including a support frame 1 and a handheld rod 2 fixed in the middle of the support frame 1. An electrical tester 3 is mounted on the support frame 1, and the electrical tester 3 transmits signals via an input... The conductor 4 and the conductive disk 5 are connected to each other. The conductive disk 5 is connected to the measuring unit 7 through the metal spring 6. The conductive disk 5 is located inside the protective cover 8. The protective cover 8 is equipped with a rotating and opening movable cover 9. A spiral spring that provides a reset elastic force is installed on the rotating shaft of the movable cover 9. The protective cover 8 is used to protect the conductive disk 5 and the measuring unit 7 in the non-measuring state. A pushing mechanism is set below the conductive disk 5. The pushing mechanism is used to push the conductive disk 5 so that the measuring unit 7 above the conductive disk 5 extends out of the protective cover 8 and contacts the conductor to measure the current. The conductive disk 5 and the protective cover 8 are slidably connected. Multiple measuring units 7 are evenly distributed above the conductive disk 5. Each measuring unit 7 is connected to the conductive disk 5 through the metal spring 6. The movable cover 9 and the measuring unit 7 are located on the same vertical line, and the movable cover 9 and the measuring unit 7 are distributed in a one-to-one correspondence.

[0040] When electrical testing is required, the conductive disk 5 is moved by the pushing mechanism. The movement of the conductive disk 5 causes the measuring unit 7 to move synchronously. At this time, the measuring unit 7 moves upward, overcoming the torque of the spiral spring and pushing the movable cover 9. After the movable cover 9 opens, the measuring unit 7 extends outward from the protective cover 8, thus enabling normal electrical testing. In the non-electrical testing state, the conductive disk 5 and the measuring unit 7 are located inside the protective cover 8, thereby providing dust protection for both the conductive disk 5 and the measuring unit 7. After the measuring unit 7 extends, the measuring unit... 7. When in contact with the conductor to be measured, pushing the hand lever 2 causes the metal springs 6, which are connected to multiple measuring units 7 on the conductive disk 5, to deform to different degrees. This allows the measuring unit 7 to contact conductors with more complex shapes. Since the metal springs 6 themselves are also conductive, when the measuring unit 7 is measuring, the current can flow through the measuring unit 7 and the metal springs 6 to the conductive disk 5 to maintain normal measuring function. Furthermore, after the measuring unit 7 is extended and subjected to an external force collision, the elastic deformation of the metal springs 6 can play a certain buffering role.

[0041] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. A cleaning structure is provided to clean dust and impurities from the surface of the electrical measurement unit 7. While manual cleaning can maintain the cleanliness of the electrical measurement unit 7 surface, it is prone to omissions. Therefore, to ensure effective cleaning of the electrical measurement unit 7 each time it is used, this example discloses the following technical content: Figure 4 , Figure 5 and Figure 7 As shown, the pushing mechanism includes a movable push plate 10 located below the support frame 1. A guide rod 11 is fixed to the upper end of the movable push plate 10, and the upper end of the guide rod 11 is connected to the lower middle of the conductive disk 5 through an auxiliary spring 12. Locking holes 20 are provided on the sides of both the movable push plate 10 and the support frame 1, and locking elements are inserted into the locking holes 20 to achieve the position positioning of the movable push plate 10 after movement. The movable push plate 10, guide rod 11, auxiliary spring 12, protective cover 8, and movable cover 9 are all non-conductive materials, and the guide rod 11 can slide on the support frame 1. A power magnetic strip 13 is embedded on the side of the guide rod 11, and an inflatable bag 14 fixed to the support frame 1 is provided on the side of the power magnetic strip 13. A compression plate 15 is fixed on the side of the power magnetic strip 13, and the inflatable bag 14 is connected to the inflatable cleaning component through the flow guide hose 16. The inflatable cleaning component includes a limiting collar 17 fixed inside the protective cover 8, and a rubber ring 18 connected to the flow guide hose 16 is provided on the inner side of the limiting collar 17. A cleaning cloth 19 for cleaning the surface of the measuring unit 7 is fixed on the inner side of the rubber ring 18. A magnetic block with the opposite magnetism to the power magnetic strip 13 is embedded on the compression plate 15 on the side of the inflatable bag 14, and the airflow inside the inflatable bag 14 can enter the interior of the rubber ring 18 through the flow guide hose 16. The rubber ring 18 and the cleaning cloth 19 are bonded together, and the cross-section of the cleaning cloth 19 is set as a ring structure.

[0042] In its initial state, the measuring unit 7 is located inside the protective cover 8. During use, the movable push plate 10 must first be pushed upwards. The upward movement of the movable push plate 10 causes the guide rod 11 to move synchronously. Because the spring constant of the spiral spring on the rotating shaft of the movable cover 9 is greater than that of the auxiliary spring 12, when the guide rod 11 moves upwards, the auxiliary spring 12 deforms first, while the conductive disk 5 does not move. After the guide rod 11 moves, the side magnetic strip 13 generates a repulsive magnetic force on the magnetic block on the pressing plate 15. At this time, under the action of the magnetic force, the pressing plate 15 is able to move towards... As the support frame 1 moves outward, the compression plate 15 moves to compress the inflatable bag 14. After compression, the airflow inside the inflatable bag 14 enters the rubber ring 18 inside the limiting collar 17 through the guide hose 16. The rubber ring 18 expands after being filled with airflow, causing the cleaning cloth 19 to adhere to the surface of the measuring unit 7. As the moving push plate 10 continues to move upward, the auxiliary spring 12 is compressed to its limit. The moving push plate 10 continues to move, which pushes the conductive disk 5 and the measuring unit 7 to move upward synchronously. Since the power magnetic strip 13 has a strip-shaped structure, it can be used in this process. The magnetic stripe 13 continuously exerts a magnetic force on the magnetic block on the extrusion plate 15. When the measuring unit 7 moves upward, it pushes open the movable cover 9 and extends it outward. At the same time, impurities on the surface of the measuring unit 7 are cleaned by the attached cleaning cloth 19. When the measuring unit 7 extends outward and the movable cover 9 moves to its limit distance, the magnetic stripe 13 on the side of the guide rod 11 and the magnetic block on the extrusion plate 15 are misaligned and no longer exert a magnetic force. The inflatable bag 14 can then return to its original position through its own elasticity. After the inflatable bag 14 returns to its original position, the airflow inside the rubber ring 18 flows back into the inflatable bag 14. After the airflow is lost, the rubber ring 18 contracts, allowing the cleaning cloth 19 to detach from the measuring unit 7. Since the cleaning cloth 19 may have some dust and impurities attached to it after cleaning the measuring unit 7, detaching it from the measuring unit 7 can prevent the impurities and dust on the cleaning cloth 19 from increasing the resistance value of the measuring unit 7 during the measuring process, thus affecting the final measuring result. After all the movement and adjustment are completed, the locking piece is inserted into the locking hole 20 on the side of the moving push plate 10 and the support frame 1 to fix the position of the moving push plate 10.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A measuring mechanism for railway signal equipment maintenance, comprising a support frame (1) and a handheld rod (2) fixed in the middle of the support frame (1), wherein a measuring instrument (3) is mounted on the support frame (1), and the measuring instrument (3) is interconnected with a conductive plate (5) via a transmission wire (4), characterized in that: The conductive disk (5) is connected to the measuring unit (7) by a metal spring (6), and the conductive disk (5) is located inside the protective cover (8). The protective cover (8) is equipped with a rotating and opening movable cover (9), and a spiral spring that provides a reset elastic force is installed on the rotating shaft of the movable cover (9). The protective cover (8) is used to protect the conductive disk (5) and the measuring unit (7) in the non-measuring state. A pushing mechanism is provided below the conductive disk (5). The pushing mechanism is used to push the conductive disk (5) so that the measuring unit (7) above the conductive disk (5) extends out of the protective cover (8) and contacts the conductor to measure the current. The pushing mechanism includes a movable push plate (10) located below the support frame (1). A guide rod (11) is fixed at the upper end of the movable push plate (10), and the upper end of the guide rod (11) is connected to the middle of the lower end of the conductive disk (5) through an auxiliary spring (12). The guide rod (11) is inlaid with a power magnetic strip (13) on its side, and an inflatable bag (14) fixed on the support frame (1) is provided on the side of the power magnetic strip (13). An extrusion plate (15) is fixed on the side of the inflatable bag (14) facing the power magnetic strip (13), and the inflatable bag (14) is connected to the inflatable cleaning component through a flow guide hose (16). The inflatable cleaning component includes a limiting collar (17) fixed inside the protective cover (8), and a rubber ring (18) connected to the flow guide hose (16) is provided on the inner side of the limiting collar (17). A cleaning cloth (19) for cleaning the surface of the measuring unit (7) is fixed on the inner side of the rubber ring (18). The side compression plate (15) of the inflatable bag (14) is inlaid with a magnetic block with the opposite magnetism to the power magnetic strip (13), and the airflow inside the inflatable bag (14) can enter the interior of the rubber ring (18) through the guide hose (16).

2. The electrical measuring mechanism for railway signal equipment maintenance according to claim 1, characterized in that: The conductive disk (5) and the protective cover (8) are slidably connected, and multiple electrical measuring units (7) are evenly distributed above the conductive disk (5). Each electrical measuring unit (7) is connected to the conductive disk (5) through a metal spring (6).

3. The electrical measuring mechanism for railway signal equipment maintenance according to claim 1, characterized in that: The movable cover (9) and the measuring unit (7) are located on the same vertical line, and the movable cover (9) and the measuring unit (7) are distributed in a one-to-one correspondence.

4. The electrical measuring mechanism for railway signal equipment maintenance according to claim 1, characterized in that: Both the movable push plate (10) and the support frame (1) have locking holes (20) on their sides, and locking parts are inserted into the locking holes (20) to achieve the position positioning of the movable push plate (10) after it moves.

5. The electrical measuring mechanism for railway signal equipment maintenance according to claim 1, characterized in that: The movable push plate (10), guide rod (11), auxiliary spring (12), protective cover (8) and movable cover (9) are all non-conductive, and the guide rod (11) can slide on the support frame (1).

6. The electrical measuring mechanism for railway signal equipment maintenance according to claim 1, characterized in that: The rubber ring (18) and the cleaning cloth (19) are bonded together, and the cross-section of the cleaning cloth (19) is set as an annular structure.

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