Pluggable contact group for railway point switch

Abstract

The utility model discloses a pluggable contact group for a railway point switch, which comprises a contact seat and a contact group, the two ends of the contact seat are respectively provided with six binding posts, and each binding post is connected with a plug-in sheet. According to the utility model, through the function separation design of the contact seat and the contact group, wiring and on-off functions are modularized, misconnection caused by wire dismounting and other risks caused by the fact that a fastener falls into the switch machine are thoroughly avoided, the contact group is vertically locked with the plug-in sheet and the bolt through the plug-in head, stable electrical connection is kept in vibration and severe environments, and the safety of the switch machine is ensured. And faults such as poor contact and short circuit are reduced. Meanwhile, the pluggable structure supports rapid replacement of the contact group, and the maintenance time is shortened. And the bottom sealing structure isolates pollutants, is matched with regular section repair / factory repair, maintains contact cleanness and low resistance, and ensures long-term reliable operation. According to the design, the problem of environmental deterioration of an open contact is radically solved, the operation and maintenance cost is reduced, and the railway transportation safety and efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pluggable electricity connection group, especially to a pluggable contact point group for railway switch machine. BACKGROUND

[0002] The ribbed contact point group currently produced and used is designed in the 1970s, has a simple structure, adopts an open dispersion structure, and uses a moving contact point and a static contact point for installation and combination. However, the design has many problems, such as frequent failures of retaining ring falling off, cotter breaking, poor contact, contact piece deviation, short circuit, contamination, low insulation resistance, and short electrical life. Although improvements have been made in materials, processing, and quality control, due to the defects of the contact point structure design itself, the existing contact point cannot meet the demand of 1 million times of normal use, the equipment is operated for a long time with illness, leading to heavy maintenance tasks of the electric section, and rescue repair is often needed, which consumes a lot of manpower and financial resources and seriously affects the normal operation of the train. The fundamental reason is that the switch machine is an outdoor device, which is exposed to harsh weather and polluted environment for a long time, leading to deterioration of the contact point surface, increase of the contact resistance, and decrease of the insulation performance, which is the fatal defect of the open contact point.

[0003] Through searching the existing public authorized patents and data, the existing contact point group for railway switch machine mostly optimizes the performance of the contact point group from the design, can reduce the influence of the internal environment of the switch machine on the contact point group, basically overcomes some disadvantages of the ribbed and open contact point, and has high reliability. However, the existing technical means has some deficiencies: firstly, the existing contact point group cannot effectively alleviate the problem of heavy maintenance tasks of the electric section and long maintenance time, when the contact point group fails, the wiring needs to be disassembled and replaced, and the wiring needs to be reassembled after the contact point group is replaced, so the workload and timeliness of maintenance and repair have not been significantly improved, and the demand of modern railway efficient operation and maintenance cannot be met, so a pluggable contact point group for railway switch machine is needed to solve the above problems. 。 CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the wiring and on-off function are modularized through the functional separation design of the contact point seat and the contact point group, the contact point seat is made of high-insulation engineering plastic, the internal wiring is permanently fixed through the wiring post and the plug-in piece, and the wiring needs to be disassembled when the contact point group fails.

[0006] (II) Technical scheme

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: including contact seat and contact group, both ends of contact seat are equipped with six binding posts respectively, each binding post is connected with the plug -in piece, the contact group is detachably installed in the top of contact seat, the plug -in head is equipped with the plug -in piece position corresponding on the contact group, the plug -in head and plug -in piece form electrical connection with plug -in mode, and the contact group is fastened through fixed bolt between contact seat.

[0008] Preferably, the contact seat independently bears the wiring function, and the contact group only realizes the contact on-off function.

[0009] Preferably, the plug-in direction of the plug-in head and the plug-in piece is perpendicular to the mounting plane of the contact seat, and the plug-in head is fixed by the fixed bolt after being plugged.

[0010] Preferably, the main material of the contact seat and the contact group is high-insulation engineering plastic, and the bottom of the contact group is provided with a sealing structure.

[0011] Preferably, the locking direction of the fixed bolt is perpendicular to the plug-in direction.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the utility model provides a railway switch machine with a pluggable contact group, which has the following beneficial effects:

[0014] The utility model discloses a contact seat and the function separation design of contact group, and wiring and on-off function are modularized, the contact seat is made of high-insulation engineering plastic, internal wiring is permanently fixed through the binding post and plug-in piece, is compatible with the size of existing contact group, realizes direct interchange, is exempted from the line after first installation, thoroughly avoids the risk of wrong connection and part falling caused by disconnection, the contact group is locked through the vertical plug-in head and plug-in piece and bolt, and stable electrical connection is kept in vibration and severe environment, and the failure such as poor contact and short circuit is reduced.Simultaneously, the pluggable structure supports the quick replacement of contact group, shortens the maintenance time.The bottom sealing structure insulates pollutants, cooperates with regular segment repair / repair, maintains the contact clean and low resistance, and ensures long-term reliable operation.The design radically solves the environmental degradation problem of open contact, reduces operation and maintenance cost, and significantly improves railway transportation safety and efficiency. ACCURACY OF DRAWINGS

[0015] Figure 1 It is a railway switch machine with a pluggable contact group structure schematic view provided by the utility model;

[0016] Figure 2 For Figure 1 The structure schematic view at contact seat;

[0017] Figure 3 For Figure 2Structural diagram

[0018] In the figure: 1, contact seat; 2, contact group; 3, fixing bolt; 4, terminal post; 5, plug-in piece; 6, plug-in head. DETAILED DESCRIPTION

[0019] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0020] The utility model provides a technical scheme of:

[0021] Reference Figures 1-3 A kind of pluggable contact group for railway switch machine, including contact seat 1 and contact group 2, the two ends of contact seat 1 are respectively provided with six terminal posts 4, each terminal post 4 is connected with plug-in piece 5, contact group 2 is detachably installed above contact seat 1, contact group 2 is provided with plug-in head 6 corresponding to the position of plug-in piece 5, plug-in head 6 and plug-in piece 5 form electrical connection in plug-in mode, contact group 2 and contact seat 1 are fastened by fixing bolt 3;

[0022] Specifically, the fixing of contact group 2 and contact seat 1 can adopt clamping structure, and the electrical connection mode of plug-in piece 5 and plug-in head 6 can also adopt connector to realize, and through the cooperative design of pluggable structure and fixing bolt 3, the quick replacement and reliable fixing of contact group 2 are realized, the cumbersome operation of disassembling wiring in traditional scheme is avoided, the maintenance time is significantly shortened, and plug-in piece 5 can also realize electrical connection through cable;It needs to be noted that contact seat 1 is installed on automatic switch by fastener.

[0023] Contact seat 1 independently bears wiring function, and contact group 2 only realizes contact on-off function;

[0024] Specifically, the function separation design makes contact group 2 replacement not involve wiring adjustment, fundamentally eliminates wiring error risk, and simplifies maintenance process.

[0025] The plug-in direction of plug-in head 6 and plug-in piece 5 is perpendicular to the mounting plane of contact seat 1, and is compressed and fixed by fixing bolt 3 after plugging-in;

[0026] Specifically, the perpendicular plug-in direction facilitates manual operation alignment, and in combination with axial compression and fixation, ensures that electrical contact surface is tightly attached, and effectively resists poor contact caused by vibration.

[0027] The main body material of the contact seat 1 and the contact group 2 is high-insulation engineering plastic, and the bottom of the contact group 2 is provided with a sealing structure.

[0028] Specifically, the high-insulation engineering plastic has strong weather resistance and can resist outdoor high temperature, high humidity and salt spray corrosion for a long time; the bottom sealing structure prevents external pollutants from entering the plug-in interface, thereby prolonging the service life of the contact group 2.

[0029] The locking direction of the fixing bolt 3 is perpendicular to the plug-in direction.

[0030] Specifically, the bolt locking direction is perpendicular to the plug-in direction, which avoids bolt loosening and further improves the stability of mechanical connection.

[0031] Specifically, the working principle of the utility model is as follows:

[0032] The core of the design of the device is based on the function separation structure of the contact seat 1 and the contact group 2. The contact seat 1 is made of high-insulation engineering plastic, and the wiring column 4 and the plug-in piece 5 at both ends are permanently fixed inside the switch machine wiring, which bears the wiring function; the contact group 2 independently realizes the contact on-off function, and the electrical connection is completed through the vertical plug-in of the plug-in head 6 and the plug-in piece 5, and the axial compression and fixation of the fixing bolt 3. The layout design of the plug-in direction perpendicular to the bolt locking direction, combined with the weather resistance of the high-insulation material and the sealing structure at the bottom of the contact group 2, effectively resists vibration, high temperature and humidity, and pollution erosion, and ensures the long-term stability of mechanical and electrical connection;

[0033] In the maintenance stage, the contact group 2 can be quickly disassembled and replaced through the pluggable structure, without adjusting the wiring of the contact seat 1, completely avoiding the cumbersome operation and miswiring risk of the traditional scheme of disconnection and reconnection. The vertical locking design of the fixing bolt 3 further prevents loosening, and guarantees the reliability of the connection in extreme environment. In addition, the contact group 2 can be regularly repaired or overhauled, and the performance can be restored through the standardized maintenance process, so that it can be continuously in good working condition. The design significantly shortens the fault handling time and reduces the frequency of rescue repair of the electric section, and fundamentally solves the problems of poor contact and insulation failure caused by environmental degradation of the open contact, and provides reliable protection for railway operation safety and efficiency.

[0034] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve basically the same technical problem and achieve basically the same technical effect is covered in the protection scope of the utility model.

Claims

1. A pluggable contact set for a railway switch machine, comprising a contact seat (1) and a contact set (2), characterized in that The contact seat (1) is provided with six terminal posts (4) at two ends respectively, each of which is connected with a plug-in sheet (5), the contact group (2) is detachably mounted above the contact seat (1), the contact group (2) is provided with plug-in heads (6) corresponding to the positions of the plug-in sheets (5), the plug-in heads (6) and the plug-in sheets (5) form electrical connection in a plug-in mode, and the contact group (2) and the contact seat (1) are fastened by the fixing bolts (3).

2. A pluggable contact set for a railway switch machine according to claim 1, characterized in that The contact seat (1) independently bears the wiring function, and the contact group (2) only realizes the contact on-off function.

3. A pluggable contact set for a railway switch machine according to claim 2, characterized in that The plug-in direction of the plug-in heads (6) and the plug-in sheets (5) is perpendicular to the mounting plane of the contact seat (1), and the plug-in heads (6) and the plug-in sheets (5) are compressed and fixed by the fixing bolts (3) after being plugged in.

4. A pluggable contact set for a railway switch machine according to claim 3, characterized in that The main body materials of the contact seat (1) and the contact group (2) are high-insulation engineering plastics, and the bottom of the contact group (2) is provided with a sealing structure.

5. A pluggable contact set for a railway switch machine according to claim 4, characterized in that The locking direction of the fixing bolts (3) is perpendicular to the plug-in direction.

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