Eight-piece type contact group for railway point switch

Abstract

The utility model discloses an eight-piece type railway point switch contact group, which comprises eight quick-action switches, two starting claws, a base and a protective cover, the quick-action switches, the starting claws and the protective cover are positioned above the base, the eight quick-action switches are divided into two groups, and the protective cover is positioned above the base. Two groups of adjacent four quick-acting switches respectively correspond to the two starting claws, linkage plates are arranged between the adjacent four quick-acting switches and the starting claws, two long shafts are inserted into the eight quick-acting switches, and one end of each long shaft sequentially penetrates through the two sides of the eight quick-acting switches. The system and the method have the advantages of reducing faults of meter breakage or meter loss on a railway site, being safe and reliable, and reducing economic loss caused by parking and delay.

Description

Technical Field

[0001] The present application relates to the technical field of switch machines, and in particular to an eight-piece contact group for railway switch machines. Background Art

[0002] Railway signal equipment is an important basic equipment to ensure railway driving safety and improve transportation efficiency. While the railway signal equipment is working, railway staff are always maintaining the normal condition of the signal equipment.

[0003] The turnout is a key device that determines the train's running route, and the device that operates the turnout is the switch machine, which is installed beside or between the rails of the turnout point rail. The action and indication circuit of the switch machine, commonly known as the turnout control circuit, is an important part of the signal circuit.

[0004] The existing switch machine has 6 contact groups in the contact group. After the switch machine has been working for a long time, the probability of the failure of the meter breaking or losing the meter on the railway site increases, which reduces the safety of the railway and increases the economic losses caused by parking and delays. Utility Model Content

[0005] The utility model aims to provide an eight-piece railway switch machine contact group in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] It includes a snap-action switch, a starting claw, a base and a protective cover, wherein the snap-action switch, the starting claw and the protective cover are located above the base, the snap-action switches have eight, the starting claws have two, the eight snap-action switches are divided into two groups, two groups of four adjacent snap-action switches correspond to the two starting claws respectively, a linkage plate is arranged between the four adjacent snap-action switches and the starting claws, two long shafts are inserted in the eight snap-action switches, and one end of the long shaft passes through the two sides of the eight snap-action switches in sequence.

[0008] Preferably, both ends of the long shaft are respectively threadedly rotatably connected with fixing nuts.

[0009] Preferably, wall panels are vertically arranged on both sides of the upper end of the base, and both ends of the long axis pass through the outer sides of the two wall panels respectively, and one side of the fixing nut abuts against the outer sides of the wall panels.

[0010] Preferably, a partition plate is provided between the wall panel and the outermost snap-action switch.

[0011] Preferably, the protective cover is arranged above the eight snap-action switches, and the corresponding two inner walls of the protective cover are respectively provided with limit slides, and the two side walls of the upper end of the snap-action switch are provided with slide grooves for the limit slides to be inserted and slid, and locking plates are respectively provided on the lower sides of the two ends of the protective cover, and the side walls of the lower ends of the locking plates abut against the inner walls of the outermost snap-action switches.

[0012] Preferably, the protective cover comprises a first splicing cover and a second splicing cover, the inner end of the first splicing cover is provided with a dovetail block, and the inner end of the second splicing cover is provided with a dovetail groove for the dovetail block to be clamped and fixed.

[0013] Preferably, wiring fixing brackets are respectively provided on both sides between the two wall panels.

[0014] Preferably, two stabilizing strips are vertically and evenly arranged on the outer side of the wall panel.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The quick-acting switch has eight contacts, which is two more than the contact group of the switch machine in the prior art. It improves the stability of circuit connection, reduces the occurrence of faults such as broken or lost meters on the railway site, is safe and reliable, and reduces economic losses caused by parking and delays;

[0017] 2. The partition board can prevent the wallboard from contacting the quick-action switch, so that the quick-action switch will not be worn by the wallboard;

[0018] 3. Two stabilizing strips are evenly and vertically arranged on the outer wall of the wall panel, which can improve the structural strength of the wall panel and save the production cost of the wall panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the contact group of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the utility model quick-acting switch;

[0021] Figure 3 It is an exploded schematic diagram of the contact group of the utility model;

[0022] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0023] Figure 5 It is an exploded schematic diagram of the contact group of the utility model from another perspective.

[0024] In the figure: 1. quick-acting switch; 2. starting claw; 3. starting frame; 4. base; 5. protective cover; 6. wall panel; 7. slide groove; 8. limit slide bar; 9. locking plate; 10. first splicing cover; 11. second splicing cover; 13. stabilizing bar; 14. plastic shell; 15. fork; 16. moving contact seat; 17. conversion tension spring; 18. moving contact; 19. linkage plate; 20. long shaft; 21. fixing nut; 22. partition plate; 23. dovetail block; 24. dovetail groove; 25. toggle block; 26. wiring fixing bracket. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] The embodiment of the present application discloses an eight-piece contact group for a railway switch machine.

[0027] Reference Figure 1 , including eight quick-acting switches 1, two starting claws 2, two starting frames 3, a base 4 and a protective cover 5. The base 4 is rectangular and annular. The lower ends of the two starting frames 3 are fixed to the upper ends of the base 4. The two starting claws 2 are rotatably connected between the two starting frames 3. The eight quick-acting switches 1 are divided into two groups. The four adjacent quick-acting switches 1 in one group correspond to the starting claws 2 in an upper and lower manner. The protective cover 5 is placed above the eight quick-acting switches 1. The quick-acting switch 1 has eight, which improves the stability of circuit connection and reduces the occurrence of faults such as broken or lost meters on the railway site.

[0028] Reference Figure 1 and Figure 3 Wall panels 6 are vertically placed on both sides of the upper end of the base 4. The vertical section of the wall panel 6 is "L" shaped, and the lower end of the wall panel 6 is fixed to the upper end of the base 4 by bolts.

[0029] Two stabilizing strips 13 are vertically and evenly arranged on the outer side of the wall panel 6, and the cross section of the stabilizing strip 13 is semicircular, so that the structural strength of the wall panel 6 can be improved and the production cost of the wall panel 6 can be saved.

[0030] Reference Figure 2 The quick-acting switch 1 includes a plastic housing 14, a fork 15, a moving contact seat 16, a conversion tension spring 17 and a moving contact 18. One end of the fork 15 is rotatably connected to the upper end of the moving contact seat 16. One end of the conversion tension spring 17 is hooked and fixed in the fork 15, and the other end is hooked and fixed in the moving contact seat 16. The moving contact 18 is sleeved and rotatably connected to the upper end of the fork 15. The moving contact seat 16 is rotatably connected in the plastic housing 14. A linkage plate 19 is placed at one end of the quick-acting switch 1 close to the starting claw 2. The linkage plate 19 is fixed to the lower end surfaces of four adjacent moving contact seats 16 by bolts.

[0031] Reference Figure 3 , Figure 4 and Figure 5 On both corresponding side walls of the plastic housing 14, two through holes are provided. Eight plastic switches are arranged horizontally. A long shaft 20 is inserted and connected through the eight corresponding through holes. Both ends of the long shaft 20 pass through the wall panels 6 on both sides respectively. Fixing nuts 21 are respectively threadedly rotated and connected to both ends of the long shaft 20. The inner ends of the fixing nuts 21 abut against the outer side walls of the wall panels 6.

[0032] A partition board 22 is vertically arranged between the wall panel 6 and the outermost quick-acting switch 1. The partition board 22 allows the two long shafts 20 to pass through. Under the action of the partition board 22, contact between the wall panel 6 and the quick-acting switch 1 can be prevented, so that the quick-acting switch 1 will not be worn by the wall panel 6.

[0033] On both sides of the upper end of the plastic housing 14, connection blocks are integrally provided respectively. A chute 7 is provided on the outer side of the connection block. The vertical cross-section of the protective cover 5 is in a "U" shape. The opening direction of the protective cover 5 is downward. On the inner side walls of both sides of the protective cover 5, limiting slide bars 8 are integrally provided respectively. The limiting slide bars 8 are inserted and slidably arranged in a plurality of mutually connected chutes 7. On the lower side walls of both ends of the protective cover 5, locking plates 9 are vertically welded and fixed respectively. The lower ends of the locking plates 9 are inserted into the interior of the upper end of the plastic housing 14. When the protective cover 5 is in the correct position above the eight quick-acting switches 1, the side walls of the locking plates 9 abut against the inner side walls of the outermost plastic housing 14.

[0034] The protective cover 5 includes a first splicing cover 10 and a second splicing cover 11. In the middle of the inner end of the first splicing cover 10, a dovetail block 23 is integrally provided. In the middle of the inner end of the second splicing cover 11, a dovetail groove 24 for clamping and fixing the dovetail block 23 is provided. On the upper end faces of the first splicing cover 10 and the second splicing cover 11, toggle blocks 25 are welded and fixed respectively.

[0035] On both sides between the two wall panels 6, wiring fixing brackets 26 are placed respectively. The wiring fixing brackets 26 are in a door frame shape. Both ends of the wiring fixing brackets 26 are fixed to the outer side walls of the two wall panels 6 through bolts respectively. The wiring fixing brackets 26 can be used for winding and fixing circuits.

[0036] The above is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An eight-piece railway switch contact assembly, comprising a quick-acting switch (1), a starting claw (2), a base (4) and a protective cover (5), wherein the quick-acting switch (1), the starting claw (2) and the protective cover (5) are located above the base (4), and characterized in that: There are eight snap-action switches (1), and two starting claws (2). The eight snap-action switches (1) are divided into two groups. Two groups of four adjacent snap-action switches (1) correspond to two starting claws (2) respectively. A linkage plate (19) is provided between the four adjacent snap-action switches (1) and the starting claws (2). Two long shafts (20) are inserted into the eight snap-action switches (1), and one end of the long shaft (20) passes through two sides of the eight snap-action switches (1) in sequence.

2. The eight-piece railway switch contact assembly according to claim 1, characterized in that: Both ends of the long shaft (20) are respectively threadedly connected with fixing nuts (21).

3. The eight-piece railway switch contact assembly according to claim 2, characterized in that: Wall panels (6) are vertically arranged on both sides of the upper end of the base (4), and both ends of the long axis (20) pass through the outer sides of the two wall panels (6), respectively, and one side of the fixing nut (21) abuts against the outer sides of the wall panels (6).

4. The eight-piece railway switch contact assembly according to claim 3, characterized in that: A partition plate (22) is provided between the wall plate (6) and the outermost snap-action switch (1).

5. The eight-piece railway switch contact assembly according to claim 1, characterized in that: The protective cover (5) is arranged above the eight snap-action switches (1), and the corresponding two inner side walls of the protective cover (5) are respectively provided with limit slide bars (8), and the two side walls at the upper end of the snap-action switch (1) are provided with slide grooves (7) for the limit slide bars (8) to be inserted and slid, and the lower sides of the two ends of the protective cover (5) are respectively provided with locking plates (9), and the side walls of the lower ends of the locking plates (9) are in contact with the inner side walls of the outermost snap-action switch (1).

6. The eight-piece railway switch contact assembly according to claim 1, characterized in that: The protective cover (5) comprises a first splicing cover (10) and a second splicing cover (11); a dovetail block (23) is provided at the inner end of the first splicing cover (10); and a dovetail groove (24) for the dovetail block (23) to be clamped and fixed is provided at the inner end of the second splicing cover (11).

7. The eight-piece railway switch contact assembly according to claim 3, characterized in that Wiring fixing brackets (26) are respectively provided on both sides between the two wall panels (6).

8. The eight-piece railway switch contact assembly according to claim 3, characterized in that Two stabilizing strips (13) are evenly and vertically arranged on the outer side of the wall panel (6).

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