Elastic sliding resettable structure of turnout conversion device detection rod inspection block
By introducing an elastic sliding resettable structure into the turnout switching equipment, the problem of arranging the detection rod inspection block under conditions of large adjustment stroke and limited space is solved, realizing flexible adjustment of the detection rod and reliable detection of its position status, and ensuring accurate feedback of turnout position information.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN RAILWAY SIGNAL
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-26
AI Technical Summary
In existing turnout switching equipment, the design of the detection rod inspection block is difficult to arrange effectively under the conditions of large adjustment stroke and limited space, resulting in insufficient flexibility and reliability in detecting the position status of the detection rod.
Design an elastic sliding resettable structure including a detection rod, guide rod, compression spring, guide pin, inspection block, inspection column, linkage shaft, bracket, moving contact, and stationary contact. Through the cooperation of the guide rod and compression spring, the inspection block can be slidably reset, reducing space occupation and ensuring flexible adjustment of the detection rod.
This technology enables flexible adjustment of the detection rod within a limited space, improving the reliability and accuracy of the detection rod's position and ensuring accurate feedback of turnout position information.
Smart Images
Figure CN224409281U_ABST
Abstract
Description
Technical Field
[0001] This utility model pertains to rail transit turnout switching equipment and is applicable to an elastic sliding and resettable structure for a detection rod inspection block of a turnout switching equipment. Background Technology
[0002] Turnout switching equipment is used to pull turnouts, change the direction of turnout operation, and provide feedback on turnout position information. The switch machine is a crucial component of this equipment, used for reversing turnout operation, reflecting the turnout's position status, and feeding back the turnout position information to the control system through internal automatic opening and closing devices and other structures. Its main functions include:
[0003] Switch switching and locking: Switching the switches to the correct position and locking them after they are switched to the correct position to ensure the safety of train operation.
[0004] Turnout position status detection: By connecting to the turnout's indicator connecting rod, as the turnout moves, check whether the switch rail is in close contact and whether the turnout is in the correct or reverse position.
[0005] The detection of turnout position status often involves a detection rod working in conjunction with an automatic switch. After the turnout is switched to the correct position, the inspection pin of the automatic switch falls into the notch of the detection rod, connecting or disconnecting the indicator circuit switch to reflect the position status of the turnout.
[0006] The turnout switching equipment detection rod consists of a main detection rod, a secondary detection rod, and two inspection blocks on top of them. The front end of the main detection rod is equipped with a connector for connecting to the turnout detection rod. The elongated hole design at the front end of the secondary detection rod provides an adjustment range to adapt to the opening requirements of different turnouts. Utility Model Content
[0007] This utility model provides a sliding resettable structure and method for a detection rod inspection block of a turnout switching equipment, which can be used in the design of the detection rod inspection block and can save the arrangement space of the inspection block spring structure when realizing a large adjustment stroke detection rod.
[0008] The technical solution of this utility model is as follows: It relates to a sliding and resettable structure of a detection rod inspection block for a turnout switching device, characterized in that it includes: a detection rod, a guide rod, a compression spring, a guide pin, an inspection block, an inspection column, a linkage shaft, a bracket, a moving contact, a stationary contact, and a crank shaft; the guide rod, compression spring, and guide pin are respectively designed in the bottom notch of the inspection block, and the detection rod has a stepped groove; the inspection block is slidably disposed in the groove, and the inspection block body has a square notch; the guide pin is fixed on the detection rod, and one end has an axially vertical through hole; one end of the guide rod is connected to the inspection block through an M4 thread, and the other end passes through the through hole of the guide pin; the compression spring is sleeved on the guide rod and pre-pressed between the inspection block and the guide pin.
[0009] The axis of the guide pin through hole coincides with the axis of the guide rod.
[0010] The guide rod is a round rod with a threaded structure at one end, which is screwed into the inspection block. The other end of the guide rod passes through the round hole of the guide pin. The guide pin is a cylindrical stepped structure with its small diameter end installed in the round hole of the detection rod and its head having a through hole structure perpendicular to the axis.
[0011] The detection rod is designed with a groove and a stepped structure to provide a mounting base.
[0012] The square notch is 8mm deep and 45mm long.
[0013] The free length of the compression spring is 45mm.
[0014] The compression amount of the spring is 14mm, and the preload is greater than 22N.
[0015] The advantages of this utility model are:
[0016] A square notch is designed on the inspection block to house the guide pin, guide rod, compression spring, and other structures. This design reduces space utilization while meeting the requirements for elastic recovery. It is particularly useful for the design and arrangement of inspection blocks for detection rods with large adjustment strokes or small space.
[0017] The position of the detection rod can be checked by inspecting the column, linkage shaft, bracket, moving contact and stationary contact, and the contact switch can be turned on or off based on the position information of the detection rod.
[0018] The present invention will be further described below with reference to the accompanying drawings of the embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram of the inspection block;
[0021] Figure 3 This is a schematic diagram of the guide pin.
[0022] In the diagram: 1. Detection rod; 2. Guide rod; 3. Compression spring; 4. Guide pin; 5. Inspection block; 6. Inspection column; 7. Linkage shaft; 8. Bracket; 9. Moving contact; 10. Static contact; 11. Crankshaft. Detailed Implementation
[0023] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the specific implementation methods, structural features and effects of this utility model are described in detail below with reference to the accompanying drawings and embodiments.
[0024] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model relates to a novel elastic sliding resettable structure, including: a detection rod 1, a guide rod 2, a compression spring 3, a guide pin 4, an inspection block 5, an inspection column 6, a linkage shaft 7, a bracket 8, a moving contact 9, a stationary contact 10, and a crank shaft 11; the detection rod 1 provides an installation base, on which a sliding groove and a stepped structure are designed.
[0025] like Figure 2 As shown, the inspection block 5 has a rectangular stepped structure. Its rectangular structure is installed in the groove structure of the detection rod 1. The stepped structure and the stepped structure of the detection rod 1 cooperate to limit the inspection block. The inspection block 5 can slide back and forth in the limited space in the groove of the detection rod. A notch is designed at the rectangular structure of the inspection block 5 for the installation of the guide rod 2, the compression spring 3 and the guide pin 4.
[0026] The guide rod 2 is a round rod with a threaded structure at one end. It is screwed into the inspection block 5 and the other end of the guide rod 2 is inserted into the round hole of the guide pin.
[0027] like Figure 3 As shown, the guide pin 4 has a cylindrical stepped structure, with its small diameter end installed in the circular hole of the detection rod 1, and its head has a through hole structure perpendicular to the axial direction.
[0028] The compression spring 3 is installed on the guide rod 2, with one end contacting the inspection block 5 and the other end contacting the guide pin 4.
[0029] After installation, the compression spring 3 is compressed, and the spring force pushes the inspection block 5 to be fixed in the detection rod groove. When the external force pushes the inspection block 5 to move in the detection rod groove, the compression spring 3 is compressed between the inspection block 5 and the guide pin 4. When the external force is removed, the spring force of the compression spring 3 will push the inspection block 5 back to its original installation position.
[0030] To facilitate the installation of the structure, a groove-shaped structure is designed at the bottom of the inspection block 5 to facilitate the installation of the guide rod 4.
[0031] The bracket 8 can rotate around its central pivot 11 at a certain angle.
[0032] The moving contact 9 is mounted on the bracket 8 and can rotate with the bracket 8 to connect the left stationary contact 10 or the right stationary contact 10.
[0033] The linkage shaft 7 is also mounted on the bracket. The upper end of the inspection column 6 has a bayonet structure, which works with the linkage shaft 7 to enable the inspection column 6 to move up and down reciprocally when the bracket 8 rotates.
[0034] The lower end of the inspection post 6 has a square structure that can cooperate with the inspection block 5 on the inspection rod 1 to check the position of the inspection rod 1. When the position of the inspection block 5 is exactly below the inspection post 6, the inspection post 6 can fall into the notch on the inspection block 5. When the position of the inspection block 5 does not meet the position requirements, the inspection post 6 cannot fall into the notch on the inspection block 5.
[0035] When the square structure at the head of the inspection column 6 falls into the notch of the inspection block 5, if the detection rod 1 is displaced, the head of the inspection column 6 will come into contact with the inspection block 5 and be subjected to force. The inspection block 5 will slide within the groove of the detection rod, and the compression spring 3 will be compressed between the inspection block and the guide pin 4 and subjected to force. When the inspection column 6 is lifted, the force on the inspection block 5 will disappear, and the compression spring 3 will push the inspection block 5 back to its original position.
[0036] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A sliding resettable structure for a test block of a turnout switching device, characterized in that: it include: The test rod (1), guide rod (2), compression spring (3), guide pin (4), test block (5), test column (6), linkage shaft (7), bracket (8), moving contact (9), stationary contact (10), and crank shaft (11) are designed in the bottom notch of the test block (5). The test rod (1) is provided with a stepped groove (12). The test block (5) is slidably disposed in the groove (12). The test block (5) is provided with a square notch. The guide pin (4) is fixed on the test rod (1) and has an axially vertical through hole at one end. One end of the guide rod (2) is connected to the test block (5) by an M4 thread, and the other end passes through the through hole of the guide pin (4). The compression spring (3) is sleeved on the guide rod (2) and pre-pressed between the test block (5) and the guide pin (4).
2. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 1, characterized in that: The axis of the through hole of the guide pin (4) coincides with the axis of the guide rod (2).
3. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 1, characterized in that: The guide rod (2) is a round rod structure with a threaded structure at one end. It is screwed into the inspection block (5) and the other end of the guide rod (2) is inserted into the round hole of the guide pin (4). The guide pin (4) is a cylindrical stepped structure with one end of its small diameter installed in the round hole of the detection rod (1) and the head has a through hole structure perpendicular to the axial direction.
4. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 1, characterized in that: The detection rod (1) is designed with a groove and a step structure to provide a mounting base.
5. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 1, characterized in that: The square notch is 8mm deep and 45mm long.
6. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 1, characterized in that: The free length of the compression spring (3) is 45mm.
7. The sliding resettable structure of the detection rod inspection block of a turnout switching device according to claim 6, characterized in that: The compression amount of the compression spring (3) is 14mm and the preload is greater than 22N.