Auxiliary contact device for contactor

Abstract

The utility model relates to an auxiliary contact device, in particular to an auxiliary contact device for a contactor, which is used for solving the problems that the conventional auxiliary contact device and the contactor are of an integrated structure, and the auxiliary contact device possibly has the problems of sensitivity reduction, action clamping stagnation and the like after being used for a long time, so that a feedback signal is abnormal. And the reliability of the contactor is reduced. According to the auxiliary contact device for the contactor, the action rod is connected with the action frame of the contactor, so that the consistency of the states of the action rod and an action mechanism of the contactor is ensured, the state of a quick-acting switch driven by the action rod can be always kept consistent with the state of the contactor, and the reliability of a feedback signal is improved.

Description

Technical Field

[0001] The utility model relates to an auxiliary contact device, in particular to an auxiliary contact device for a contactor. Background Art

[0002] As the operational requirements of railway systems continue to increase, higher requirements are also placed on the reliability of electrical products. At present, the status of contactors (on or off) is usually fed back through auxiliary contacts. For contactors with high reliability requirements, the status of contactors needs to be monitored in real time. Through system monitoring, real-time monitoring and troubleshooting of faults can be achieved.

[0003] The existing auxiliary contact device and contactor are usually an integrated structure. After long-term use, the auxiliary contact device may have problems such as reduced sensitivity and stuck action, which may lead to abnormal feedback signals and reduced reliability of the contactor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings that the existing auxiliary contact device and the contactor are integrated into a structure, and the auxiliary contact device may have problems such as reduced sensitivity and action stagnation after long-term use, which further leads to abnormal feedback signals and reduced reliability of the contactor, and to provide an auxiliary contact device for a contactor.

[0005] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides the following technical solutions:

[0006] An auxiliary contact device for a contactor, which is special in that it comprises a quick-acting switch and a connecting assembly;

[0007] The connecting assembly includes a first side plate and a second side plate, and a spring clip and an action rod arranged between the first side plate and the second side plate;

[0008] A side of the first side plate close to the second side plate is provided with a slide rail, a first connecting plate, a second connecting plate and a buckle;

[0009] The slide groove of the slide rail is vertically arranged, the actuating rod is located in the slide groove, the upper end of the actuating rod abuts against the actuating head of the quick-acting switch, and the lower end is used to be inserted into the actuating frame of the contactor to be connected;

[0010] The first connecting plate is connected to the lower end of the snap-action switch, the second connecting plate and the buckle are arranged below the first connecting plate and on the same side of the slide rail, the buckle is located below the second connecting plate, and a slot is arranged on the buckle in the horizontal direction for engaging with the connecting slot of the upper cover of the contactor to be connected, the spring clip is arranged between the second connecting plate and the buckle, one side of the spring clip is a fixed end, and the other side is an elastic end, the fixed end is fixed to the first side plate, the upper part of the elastic end is connected to the bottom surface of the second connecting plate, and the lower part abuts against the top surface of the buckle, and a first boss is arranged in the middle of the bottom surface of the spring clip, and the first boss is used to be inserted into the upper cover hole of the contactor to be connected.

[0011] Furthermore, the spring clip includes a fixed rod and an elastic push rod connected at one end, the fixed rod and the elastic push rod form a V-shaped structure, the open end of the V-shaped structure is the elastic end, and the connecting end is the fixed end; the other end of the fixed rod is clamped with the bottom surface of the second connecting plate, and the lower part of the other end of the elastic push rod abuts against the top surface of the buckle, and a first boss is provided in the middle of the bottom surface of the elastic push rod, and the first boss is used to be inserted into the upper cover hole of the contactor to be connected; the fixed end is provided with a fixed through hole, and the fixed through hole is connected to the fixed shaft provided on the first side plate.

[0012] Furthermore, one side of the action rod is provided with a second boss along the sliding direction, and the other side is provided with two second bosses along the sliding direction, and the inner wall of the slide groove of the slide rail is adapted to the action rod.

[0013] Furthermore, the first connecting plate is located on the top of the first side plate and is symmetrically arranged on both sides of the slide rail.

[0014] Furthermore, the first connecting plate is fixed to the lower end of the snap-action switch by a plurality of fasteners.

[0015] Furthermore, the first side plate and the second side plate are interference fit or adhesive fit.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The utility model discloses an auxiliary contact device for a contactor, which is connected to an actuating frame of the contactor via an actuating rod, thereby ensuring the consistency of the states of the actuating rod and the actuating mechanism of the contactor, so that the state of a snap-action switch driven by the actuating rod can always be consistent with the state of the contactor, thereby improving the reliability of the feedback signal.

[0018] (2) The utility model provides an auxiliary contact device for a contactor. The snap-action switch is connected to the contactor through a spring clip and a buckle in a connecting assembly. Under the premise that the original structure of the contactor does not change, multiple auxiliary contact devices can be installed on one contactor to increase the number of auxiliary contacts of the contactor, so that detection systems with different potentials can perform signal detection at the same time, thereby improving the reliability and convenience of signal acquisition. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the axonometric structure of an auxiliary contact device for a contactor according to an embodiment of the utility model;

[0020] Figure 2 It is a rear view structural schematic diagram of an embodiment of the utility model (the second side panel is not shown);

[0021] Figure 3 It is a structural schematic diagram of a connection assembly in an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the axonometric structure of an embodiment of the utility model installed on a contactor (the second side plate is not shown).

[0023] The following are the descriptions of the reference numerals:

[0024] 01-contactor; 02-actuator frame; 03-upper cover; 04-upper cover hole;

[0025] 1- snap-action switch; 2- first side plate; 3- second side plate; 4- spring clip, 41- first boss, 42- fixing rod, 43- elastic push rod; 5- action rod, 51- second boss; 6- slide rail; 7- first connecting plate; 8- second connecting plate; 9- buckle; 10- fixing shaft; 101- fastener. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Reference Figures 1 to 4 , an auxiliary contact device for a contactor, comprising a quick-acting switch 1 and a connecting assembly.

[0028] The contactor 01 to be connected includes a main body, an upper cover 03 arranged on the top surface of the main body, and multiple action frames 02. The top surface of the upper cover 03 is provided with multiple action frame through holes respectively adapted to the multiple action frames 02. Each action frame 02 is located in the corresponding action frame through hole, and the upper end extends out of the upper cover 03. One side of the upper cover 03 is provided with multiple clamping grooves corresponding to the multiple action frames 02 respectively.

[0029] The connecting assembly includes a first side plate 2 and a second side plate 3, and a spring clip 4 and an action rod 5 arranged between the first side plate 2 and the second side plate 3; the first side plate 2 and the second side plate 3 are interference fit, and in other embodiments, bonding fit can also be used.

[0030] A side of the first side plate 2 close to the second side plate 3 is provided with a slide rail 6 , a first connecting plate 7 , a second connecting plate 8 buckle 9 and a fixed shaft 10 .

[0031] The slide groove of the slide rail 6 is arranged vertically, and an action rod 5 is arranged in the slide groove. The action rod 5 is used to transmit the action of the action frame 02 of the contactor 01 to the action head of the quick-acting switch 1, so as to detect the state of the contactor 01; the upper end of the action rod 5 abuts against the action head of the quick-acting switch 1, and the lower end is used to be inserted into the action frame 02 of the contactor 01 to be connected; a second boss 51 is arranged on one side of the action rod 5 along the sliding direction, and two second bosses 51 are arranged on the other side along the sliding direction. The inner wall of the slide groove of the slide rail 6 is adapted to the action rod 5, which is convenient for installation and prevents the wrong installation direction; a block is also arranged on the upper end of the action rod 5 to prevent the action rod 5 from escaping from the lower end of the slide rail 6.

[0032] The first connecting plate 7 is located on the top of the first side plate 2 and is symmetrically arranged on both sides of the slide rail 6 . The first connecting plate 7 is fixed to the lower end of the snap-action switch 1 through two fasteners 101 .

[0033] The second connecting plate 8 and the buckle 9 are arranged in sequence from top to bottom on the same side of the slide rail 6, and a slot is arranged on the buckle 9 in the horizontal direction for engaging with the engaging slot of the upper cover 03 of the contactor 01 to be connected. The spring clip 4 is arranged between the second connecting plate 8 and the buckle 9, and the spring clip 4 includes a fixed rod 42 and an elastic push rod 43 connected at one end, and the fixed rod 42 and the elastic push rod 43 form a V-shaped structure, the open end of the V-shaped structure is an elastic end, and the connecting end is a fixed end; the other end of the fixed rod 42 is engaged with the bottom surface of the second connecting plate 8, and the lower part of the other end of the elastic push rod 43 abuts against the top surface of the buckle 9, and a first boss 41 is arranged in the middle of the bottom surface of the elastic push rod 43, and the first boss 41 is used to be inserted into the upper cover hole 04 of the contactor 01 to be connected; the fixed end is provided with a fixed through hole, and the fixed through hole is connected to the fixed shaft 10.

[0034] The assembly method of the utility model is as follows:

[0035] First, pass the fixing through hole on the spring clip 4 through the fixing shaft 10, then install the second side plate 3 on the first side plate 2, then install the action rod 5 into the slide groove of the slide rail 6, and then fix the snap-action switch 1 to the first connecting plate 7 through two fasteners 101.

[0036] The installation method of the utility model and contactor 01 is as follows:

[0037] The actuating rod 5 is inserted into the actuating frame 02 of the contactor 01 , and the card slot is engaged with the upper cover 03 of the contactor 01 , and the first boss 41 of the spring card 4 is inserted into the hole 04 of the upper cover of the contactor 01 .

[0038] The disassembly method of the utility model is as follows:

[0039] Push up the unconnected end of the elastic push rod 43 to deform the elastic push rod 43 so as to move the first boss 41 out of the upper cover hole 04, and then move the utility model in the horizontal direction to separate the upper cover 03 from the buckle 9, so that the utility model can be removed from the contactor 01.

Claims

1. An auxiliary contact device for a contactor, characterized in that: It comprises a snap-action switch (1) and a connecting assembly; The connecting assembly comprises a first side plate (2) and a second side plate (3), and a spring clip (4) and an action rod (5) arranged between the first side plate (2) and the second side plate (3); A side of the first side plate (2) close to the second side plate (3) is provided with a slide rail (6), a first connecting plate (7), a second connecting plate (8) and a buckle (9); The slide groove of the slide rail (6) is arranged vertically, the actuating rod (5) is located in the slide groove, the upper end of the actuating rod (5) abuts against the actuating head of the quick-acting switch (1), and the lower end is used to be inserted into the actuating frame (02) of the contactor (01) to be connected; The first connecting plate (7) is connected to the lower end of the snap-action switch (1); the second connecting plate (8) and the buckle (9) are arranged below the first connecting plate (7) and on the same side of the slide rail (6); the buckle (9) is located below the second connecting plate (8); a slot is arranged on the buckle (9) in the horizontal direction for being engaged with the engaging slot of the upper cover (03) of the contactor (01) to be connected; the spring clip (4) is arranged between the second connecting plate (8) and the buckle (9); one side of the spring clip (4) is a fixed end and the other side is an elastic end; the fixed end is fixed to the first side plate (2); the upper part of the elastic end is connected to the bottom surface of the second connecting plate (8) and the lower part is in contact with the top surface of the buckle (9); a first boss (41) is arranged in the middle of the bottom surface of the spring clip (4); the first boss (41) is used to be inserted into the upper cover hole (04) of the contactor (01) to be connected.

2. The auxiliary contact device for a contactor according to claim 1, characterized in that: The spring clip (4) comprises a fixed rod (42) and an elastic push rod (43) connected at one end, the fixed rod (42) and the elastic push rod (43) form a V-shaped structure, the open end of the V-shaped structure is an elastic end, and the connecting end is a fixed end; the other end of the fixed rod (42) is clamped with the bottom surface of the second connecting plate (8), the lower part of the other end of the elastic push rod (43) is in contact with the top surface of the buckle (9), and a first boss (41) is provided in the middle of the bottom surface of the elastic push rod (43), and the first boss (41) is used to be inserted into the upper cover hole (04) of the contactor (01) to be connected; the fixed end is provided with a fixed through hole, and the fixed through hole is connected to the fixed shaft (10) provided on the first side plate (2).

3. An auxiliary contact device for a contactor according to claim 1 or 2, characterized in that: One side of the action rod (5) is provided with a second boss (51) along the sliding direction, and the other side is provided with two second bosses (51) along the sliding direction. The inner wall of the slide groove of the slide rail (6) is adapted to the action rod (5).

4. The auxiliary contact device for a contactor according to claim 3, characterized in that: The first connecting plate (7) is located on the top of the first side plate (2) and is symmetrically arranged on both sides of the slide rail (6).

5. The auxiliary contact device for a contactor according to claim 4, characterized in that: The first connecting plate (7) is fixed to the lower end of the snap-action switch (1) via a plurality of fasteners (101).

6. The auxiliary contact device for a contactor according to claim 5, characterized in that: The first side plate (2) and the second side plate (3) are in an interference fit or an adhesive fit.

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