Alternating-current relay special for railway signals

Abstract

The invention discloses a railway signal dedicated AC relay, which structurally comprises a bottom plate, a path structure, a wiring terminal and a signal processor, the wiring terminal is installed on the surface of the bottom plate, the path structure is embedded and fixed at the upper end of the bottom plate, the wiring terminal is connected with an internal circuit of the path structure, and the signal processor is installed at the upper end of the path structure. When adsorption force is smaller than or equal to elastic force of an elastic rod, a sliding ring can be driven to rotate anticlockwise, then the top end of an arc-shaped plate rubs the inner side of the sliding ring, circuit contact is prevented from being disengaged when stretching elastic force is larger than the adsorption force, a movable block is pulled out manually, the movable block moves in an inner gap, and meanwhile the movable block is disengaged from clamping of a clamping plate; when the movable block is pulled, the arc-shaped block is separated from the clamping of the semicircular block from the second track plate, and then the movable block is moved up and down, so that the supporting rod drives the elastic force at the upper end of the elastic rod to adjust, the problem that the electromagnetic coil cannot be attracted due to overlarge elastic force is avoided, and the elasticity can be adjusted according to the magnetic attraction force.

Description

Technical Field

[0001] The present invention relates to the technical field of AC relays, and more specifically, to an AC relay dedicated to railway signals. Background Art

[0002] The dedicated AC relay for railway signals is a special multi-way switch designed for railway signal control circuits. When it is necessary to process the passing route, it controls the transmission of signals. Its function is to confirm the arrival of the train. The relay principle mainly uses the coil to produce an electromagnetic effect. The armature will overcome the pulling force of the return spring under the action of electromagnetic force and be attracted to the iron core, thereby driving the moving contact and static contact of the armature to close. When the coil is powered off, the electromagnetic attraction disappears, and the armature returns to its original position under the reaction force of the spring, releasing the moving contact and the original static contact. In this way, the purpose of conduction and disconnection in the circuit is achieved by closing and releasing, so that the control center can receive timely feedback after the current is emitted when the railway train enters the station.

[0003] However, when the contact point on the iron sheet is adsorbed or released, it needs to rotate. The existing adsorption method requires stretching the spring. The longer the spring stretching distance, the greater the adsorption force required, so that the elastic force of the spring is greater than the force of the magnetic attraction, which can easily cause the adsorption failure problem. In addition, the magnetic field of the electromagnetic coil is too far away from the iron sheet, and the force of the magnetic attraction of the iron sheet is small. The existing relay cannot adjust the elastic resistance of the iron sheet according to the size of the magnetic attraction, which affects the attraction and release of the iron sheet by the adsorption force. Summary of the invention

[0004] The technical solution adopted by the present invention to achieve the technical purpose is: a railway signal dedicated AC relay, which includes a base plate, a passage structure, a wiring terminal, and a signal processor. The wiring terminal is installed on the surface of the base plate, the passage structure is embedded in the upper end of the base plate, the wiring terminal is connected to the internal circuit of the passage structure, the signal processor is installed on the upper end of the passage structure, the passage structure is provided with an armature, a moving iron piece, an adjusting rod, a shell, a static contact piece, and an electromagnetic coil. The adjusting rod is installed inside the shell, the moving iron piece is embedded in the upper end of the armature, the moving iron piece is attached to the inner end of the adjusting rod, the static contact piece is installed on the inner side of the shell, the electromagnetic coil is embedded in the armature, the armature is installed inside the shell, the electromagnetic coil is connected to the wiring terminal circuit, the signal processor is installed on the upper end of the shell, and the static contact piece and the moving iron piece circuit are connected inside the signal processor, the wiring terminal is provided with four, evenly arranged and distributed, the armature is in an "L" shape, the static contact piece is in a fixed state, and is in active contact and cooperation with the moving iron piece.

[0005] As a further improvement of the present invention, the moving iron piece is provided with an electric wire, a sliding rod, a moving contact block, an elastic rod, and an iron plate. The iron plate is embedded in the outside of the sliding rod, the elastic rod is attached to the upper end of the iron plate, the moving contact block is clamped in the upper end of the iron plate, the electric wire line is connected to the inside of the moving contact block, the elastic rod is attached to the inner end of the adjusting rod, the sliding rod is embedded in the side surface of the upper end of the armature, and the elastic rod is made of sponge material, is easy to stretch, and has a certain compression elasticity.

[0006] As a further improvement of the present invention, the sliding rod is provided with a connecting rod, a sliding ring, a limit block, a ball block, and a fixed rod. The connecting rod is embedded in the outside of the fixed rod, the limit block is installed on the outside of the fixed rod, the ball block is embedded in the outside of the fixed rod, the ball block is slidably matched with the inner side of the sliding ring, the limit block is limited and slidably matched with the sliding ring, the left end of the connecting rod is embedded in the upper end side of the armature, the iron plate is embedded in the outside of the sliding ring, six ball blocks are provided, which are evenly distributed in a ring, and one limit block is provided, which is located on the right side of the fixed rod.

[0007] As a further improvement of the present invention, the limit block is provided with a clamping block, an arc plate, and a compression plate. The arc plate is embedded in the outside of the compression plate, and the compression plate is attached to the outside of the clamping block. The arc plate is frictionally matched with the inner side of the sliding ring, and the clamping block is embedded in the outside of the fixed rod. The compression plate is made of sponge material and has a relatively dense density. It has the characteristics of high elasticity and easy compression. The arc plate and the compression plate are spliced ​​into an outer arc structure.

[0008] As a further improvement of the present invention, the adjusting rod is provided with a first track plate, a movable block, a support rod, a round rod, and a clamping plate. The round rod is embedded on the outside, and the round rod slides in the first track plate. The support rod is embedded on the inside, and the movable block moves in the inner gap. The clamping plate is installed on the outside of the movable block. The clamping plate and the first track plate are embedded in the outer shell, and the moving iron sheet is attached to the inner end. The structure is a square structure, and four round rods are provided, which are symmetrically distributed on the outside on the left and right sides, and the clamping plate and the first track plate are parallel to each other.

[0009] As a further improvement of the present invention, the clamping plate is provided with a semicircular block, an arc block, and a second track plate. The semicircular block is embedded on the inner side of the second track plate. The arc block is clamped between the semicircular blocks. The arc block is installed on the outer side of the movable block. The arc blocks are evenly distributed in an annular shape on the outer side of the movable block. The semicircular blocks are made of rubber and have the characteristic of high friction. Beneficial Effects

[0010] 1. In the present invention, when the adsorption force of the iron plate during rotation is insufficient, the limit block guides the clockwise rotation of the sliding ring to prevent the sliding ring from rotating counterclockwise under the elastic force of the elastic rod, so that the iron plate is frictionally blocked after rotation, and the elastic rod is stretched when the iron plate rotates clockwise, so that the moving contact block contacts the static contact piece, and is connected to the inside of the signal processor through wires to form a passage, and a sliding limit force is formed between the iron plate and the sliding rod when the iron plate rotates during adsorption, so that sliding guidance is achieved when the adsorption force drives the iron plate to rotate, and friction blocking of the adsorption force is avoided.

[0011] 2. In the present invention, when the sliding ring rotates clockwise, the arc plate guides the sliding ring to slide, and at the same time, the arc plate presses the compression plate under the fixation of the clamping block. When the adsorption force is less than or equal to the elastic force of the elastic rod, it will drive the sliding ring to rotate counterclockwise, and then the top of the arc plate rubs against the inner side of the sliding ring, so that the sliding ring generates a blocking force when the adsorption force is insufficient, and then slowly drives the iron plate to rotate counterclockwise to loosen, and at the same time forms a certain limit friction barrier to the tensile elastic force of the elastic rod to prevent the circuit from being disconnected when the tensile elastic force is greater than the adsorption force.

[0012] 3. In the present invention, the movable block is manually pulled out to make the movable block move in the inner gap, and at the same time the movable block is disengaged from the engagement of the engaging plate, and when the movable block is pulled, the arc block is disengaged from the engagement of the semicircular block in the second track plate, and when the movable block is pressed, the arc block is engaged in the gap between the semicircular blocks, thereby realizing the horizontal limit fixation of the movable block and the movable block, and then moving the movable block up and down, driving the outer round rod to move up and down in the first track plate, and then the support rod drives the elastic force of the upper end of the elastic rod to be adjusted, avoiding the problem that the electromagnetic coil cannot be adsorbed due to excessive elastic force, and the elasticity can be adjusted according to the size of the magnetic suction force. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic structural diagram of a special AC relay for railway signals.

[0014] Figure 2 It is a side structural schematic diagram of a passage structure of the present invention.

[0015] Figure 3 The figure is a schematic diagram of the side structure of a moving iron piece of the present invention.

[0016] Figure 4 The figure is a schematic diagram of the planar structure of a sliding rod of the present invention.

[0017] Figure 5 The figure is a schematic diagram of the three-dimensional structure of a limit block of the present invention.

[0018] Figure 6 The figure is a schematic diagram of the side structure of an adjusting rod of the present invention.

[0019] Figure 7 It is a schematic diagram of the planar structure of a clamping plate of the present invention.

[0020] In the figure: base plate-1, passage structure-2, terminal block-3, signal processor-4, armature-21, moving iron piece-22, adjusting rod-23, housing-24, static contact piece-25, electromagnetic coil-26, wire-w1, sliding rod-w2, moving contact block-w3, elastic rod-w4, iron plate-w5, connecting rod-w21, sliding ring-w22, limit block-w23, ball block-w24, fixed rod-w25, clamping block-t1, arc plate-t2, compression plate-t3, first track plate-r1, movable block-r2, support rod-r3, round rod-r4, clamping plate-r5, semicircular block-r51, arc block-r52, second track plate-r53. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings: Example

[0022] As attached Figure 1 To Attachment Figure 5 As shown: The present invention discloses a special AC relay for railway signal, which comprises a base plate 1, a passage structure 2, a wiring terminal 3, and a signal processor 4. The wiring terminal 3 is installed on the surface of the base plate 1, the passage structure 2 is embedded in the upper end of the base plate 1, the wiring terminal 3 is connected to the internal circuit of the passage structure 2, the signal processor 4 is installed on the upper end of the passage structure 2, the passage structure 2 is provided with an armature 21, a moving iron piece 22, an adjusting rod 23, a shell 24, a static contact piece 25, and an electromagnetic coil 26, the adjusting rod 23 is installed inside the shell 24, the moving iron piece 22 is embedded in the upper end of the armature 21, the moving iron piece 22 is attached to the inner end of the adjusting rod 23, the static contact piece 25 is installed on the inner side of the shell 24, and the electromagnetic coil 26 is embedded in the outer shell 24. Inside the armature 21, the armature 21 is installed inside the housing 24, the electromagnetic coil 26 is connected to the wiring terminal 3, the signal processor 4 is installed at the upper end of the housing 24, and the static contact piece 25 and the moving iron piece 22 are connected to the inside of the signal processor 4, the wiring terminal 3 is provided with four, evenly arranged and distributed, the armature 21 is in an "L" shape, the static contact piece 25 is in a fixed state, and is in active contact and cooperation with the moving iron piece 22, so that the vehicle on the railway will release current before entering the station, so that the current enters the electromagnetic coil 26 from the wiring terminal 3, so that the electromagnetic coil 26 generates magnetic attraction to the moving iron piece 22, thereby driving the moving iron piece 22 to contact with the static contact piece 25 to form a closed path, and then the signal processor 4 receives feedback to achieve it.

[0023] Among them, the moving iron piece 22 is provided with an electric wire w1, a sliding rod w2, a moving contact block w3, an elastic rod w4, and an iron plate w5. The iron plate w5 is embedded in the outer side of the sliding rod w2, the elastic rod w4 is attached to the upper end of the iron plate w5, the moving contact block w3 is engaged in the upper end of the iron plate w5, the electric wire w1 is connected to the inside of the moving contact block w3, the elastic rod w4 is attached to the inner end of the adjusting rod 23, the sliding rod w2 is embedded in the upper end side of the armature 21, and the elastic rod w4 is made of sponge material, which is easy to stretch and has a certain compression elasticity. Therefore, the iron plate w5 is adsorbed by the electromagnetic coil 26, so that the iron plate w5 rotates downward with the sliding rod w2 as the center, and then the elastic rod w4 is stretched to make the moving contact block w3 contact with the static contact piece 25, and is connected to the inside of the signal processor 4 through the electric wire w1 to form a passage. When adsorbed, a sliding limit force is formed between the iron plate w5 and the sliding rod w2 when it rotates, so as to avoid rotational friction caused by the adsorption force.

[0024] Among them, the sliding rod w2 is provided with a connecting rod w21, a sliding ring w22, a limit block w23, a ball block w24, and a fixed rod w25. The connecting rod w21 is embedded on the outside of the fixed rod w25, the limit block w23 is installed on the outside of the fixed rod w25, the ball block w24 is embedded on the outside of the fixed rod w25, the ball block w24 is slidably matched with the inner side of the sliding ring w22, the limit block w23 is limited and slidably matched with the sliding ring w22, the left end of the connecting rod w21 is embedded on the upper end side of the armature 21, the iron plate w5 is embedded on the outside of the sliding ring w22, the ball block There are six w24s which are evenly distributed in a ring shape. There is one limit block w23 which is located just to the right of the fixed rod w25. Therefore, when the iron plate w5 rotates, the connected sliding ring w22 slides with the ball block w24 on the outside of the fixed rod w25. At the same time, the limit block w23 slides clockwise on the outside of the limit block w23. When the adsorption force of the iron plate w5 is insufficient during rotation, the limit block w23 guides the clockwise rotation of the sliding ring w22 to prevent the sliding ring w22 from rotating counterclockwise under the elastic force of the elastic rod w4, thereby realizing sliding guidance when the adsorption force drives the iron plate w5 to rotate and avoiding frictional obstruction to the adsorption force.

[0025] The limit block w23 is provided with a card block t1, an arc plate t2, and a compression plate t3. The arc plate t2 is embedded on the outside of the compression plate t3. The compression plate t3 is attached to the outside of the card block t1. The arc plate t2 is frictionally matched with the inner side of the sliding ring w22. The card block t1 is embedded on the outside of the fixed rod w25. The compression plate t3 is made of sponge material and has a relatively dense density. It has the characteristics of high elasticity and easy compression. The arc plate t2 and the compression plate t3 are spliced ​​into an outer arc structure, so that the sliding When the ring w22 rotates clockwise, the arc plate t2 guides the sliding ring w22, and at the same time, the arc plate t2 presses the compression plate t3 under the fixation of the block t1. When the sliding ring w22 rotates counterclockwise, the top of the arc plate t2 rubs against the inner side of the sliding ring w22, so that the sliding ring w22 generates a blocking force when the adsorption force is insufficient, and then slowly drives the iron plate w5 to rotate counterclockwise to loosen, and at the same time forms a certain limit friction barrier on the tensile elastic force of the elastic rod w4 to prevent the circuit from being disconnected when the tensile elastic force is greater than the adsorption force.

[0026] The specific usage and function of this embodiment are as follows: In the present invention, the vehicle on the railway will release current before entering the station, so that the current enters the electromagnetic coil 26 from the terminal 3, so that the electromagnetic coil 26 generates magnetic attraction to the moving iron sheet 22, thereby driving the moving iron sheet 22 to contact with the static contact sheet 25 to form a closed path, and then the signal processor 4 receives feedback to realize that when the iron plate w5 is attracted by the electromagnetic coil 26, the iron plate w5 rotates downward clockwise with the sliding rod w2 as the center, and then when the iron plate w5 rotates, the sliding ring w22 connected to the iron plate w5 slides with the ball block w24 on the outside of the fixed rod w25, and at the same time, the limit block w23 slides clockwise on the outside of the limit block w23 When the rotation adsorption force of the iron plate w5 is insufficient, the limit block w23 guides the clockwise rotation of the sliding ring w22 to prevent the sliding ring w22 from rotating counterclockwise under the elastic force of the elastic rod w4, so that the iron plate w5 is frictionally blocked after rotation, and the elastic rod w4 is stretched when the iron plate w5 rotates clockwise, so that the moving contact block w3 contacts the static contact piece 25, and is connected to the inside of the signal processor 4 through the wire w1 to form a passage. When the iron plate w5 rotates during adsorption, a sliding limit force is formed between the sliding rod w2 and the iron plate w5, so that the adsorption force drives the iron plate w5 to rotate and slide guide, avoiding friction blocking of the adsorption force.

[0027] In the present invention, when the sliding ring w22 rotates clockwise, the arc plate t2 guides the sliding ring w22 to slide, and at the same time, the arc plate t2 presses the compression plate t3 under the fixation of the block t1. When the adsorption force is less than or equal to the elastic force of the elastic rod w4, the sliding ring w22 will be driven to rotate counterclockwise, and then the top of the arc plate t2 will rub against the inner side of the sliding ring w22, so that the sliding ring w22 will generate a blocking force when the adsorption force is insufficient, and then slowly drive the iron plate w5 to rotate counterclockwise to loosen, and at the same time form a certain limit friction barrier to the tensile elastic force of the elastic rod w4 to prevent the circuit from being disconnected when the tensile elastic force is greater than the adsorption force. Example

[0028] As attached Figure 6 To Attachment Figure 7 As shown: The adjusting rod 23 is provided with a first track plate r1, a movable block r2, a support rod r3, a round rod r4, a clamping plate r5, and r6. The round rod r4 is embedded on the outside of r6, and the round rod r4 is slidably matched in the first track plate r1. The support rod r3 is embedded on the inside of r6. The movable block r2 moves in the gap inside r6. The clamping plate r5 is installed on the outside of the movable block r2. The clamping plate r5 and the first track plate r1 are embedded in the shell 24. The moving iron sheet 22 is attached to the inner end of e3. The r6 is a square structure. There are four round rods r4, which are symmetrically distributed on the left and right sides of the outer side of r6. The engaging plate r5 is parallel to the first track plate r1, so as to pull out the movable block r2, so that the movable block r2 can move in the gap inside r6. At the same time, the movable block r2 is separated from the engaging plate r5, and then the movable block r2 is moved up and down, driving the round rods r4 outside r6 to move up and down in the first track plate r1, so that the support rod r3 drives the elastic force of the upper end of the moving iron sheet 22 to adjust, so as to avoid the problem that the electromagnetic coil 26 cannot be adsorbed due to excessive elastic force, and the elasticity can be adjusted according to the size of the magnetic suction force.

[0029] Among them, the locking plate r5 is provided with a semicircular block r51, an arc block r52, and a second track plate r53. The semicircular block r51 is embedded in the inner side of the second track plate r53, and the arc block r52 is locked between the semicircular blocks r51. The arc block r52 is installed on the outer side of the movable block r2. The arc blocks r52 are evenly distributed in a ring shape on the outer side of the movable block r2. The semicircular block r51 is made of rubber and has the characteristic of large friction. Therefore, when the movable block r2 is pulled, the arc block r52 is disengaged from the engagement of the semicircular block r51 in the second track plate r53. When the movable block r2 is pressed, the arc block r52 is locked in the gap between the semicircular blocks r51, thereby realizing the horizontal limit fixation of the movable blocks r2 and r6.

[0030] The specific usage and function of this embodiment are as follows: In the present invention, the movable block r2 is manually pulled out to make the movable block r2 move in the gap in r6, and at the same time, the movable block r2 is disengaged from the engagement of the engaging plate r5, and when the movable block r2 is pulled, the arc block r52 is disengaged from the engagement of the semicircular block r51 in the second track plate r53, and when the movable block r2 is pressed, the arc block r52 is engaged in the gap of the semicircular block r51, so as to realize the horizontal limit fixation of the movable block r2 and r6, and then the movable block r2 is moved up and down, driving the round rod r4 on the outside of r6 to move up and down in the first track plate r1, so that the support rod r3 drives the elastic force of the upper end of the elastic rod w4 to adjust, so as to avoid the problem that the electromagnetic coil 26 cannot be adsorbed due to excessive elastic force, and the elasticity can be adjusted according to the size of the magnetic suction force.

[0031] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A special AC relay for railway signaling, comprising a base plate (1), a passage structure (2), a wiring terminal (3), and a signal processor (4), characterized in that: The wiring terminal (3) is mounted on the surface of the base plate (1), the passage structure (2) is embedded in the upper end of the base plate (1), the wiring terminal (3) is connected to the internal circuit of the passage structure (2), and the signal processor (4) is mounted on the upper end of the passage structure (2); The passage structure (2) is provided with an armature (21), a movable iron piece (22), an adjusting rod (23), a housing (24), a stationary contact piece (25), and an electromagnetic coil (26); the adjusting rod (23) is mounted inside the housing (24); the movable iron piece (22) is embedded in the upper end of the armature (21); the movable iron piece (22) is attached to the inner end of the adjusting rod (23); the stationary contact piece (25) is mounted on the inner side of the housing (24); the electromagnetic coil (26) is embedded in the armature (21); the armature (21) is mounted inside the housing (24); the electromagnetic coil (26) is connected to the wiring of the terminal (3); the signal processor (4) is mounted on the upper end of the housing (24); and the stationary contact piece (25) and the movable iron piece (22) are connected to the inside of the signal processor (4).

2. A railway signal dedicated AC relay according to claim 1, characterized in that: The movable iron piece (22) is provided with an electric wire (w1), a sliding rod (w2), a movable contact block (w3), an elastic rod (w4), and an iron plate (w5); the iron plate (w5) is embedded on the outside of the sliding rod (w2); the elastic rod (w4) is attached to the upper end of the iron plate (w5); the movable contact block (w3) is engaged with the upper end of the iron plate (w5); the electric wire (w1) is connected to the inside of the movable contact block (w3); the elastic rod (w4) is attached to the inner end of the adjustment rod (23); and the sliding rod (w2) is embedded on the side of the upper end of the armature (21).

3. A railway signal dedicated AC relay according to claim 2, characterized in that: The sliding rod (w2) is provided with a connecting rod (w21), a sliding ring (w22), a limiting block (w23), a ball block (w24), and a fixed rod (w25); the connecting rod (w21) is embedded in the outer side of the fixed rod (w25); the limiting block (w23) is installed on the outer side of the fixed rod (w25); the ball block (w24) is embedded in the outer side of the fixed rod (w25); the ball block (w24) is slidably matched with the inner side of the sliding ring (w22); the limiting block (w23) is limitedly slidably matched with the sliding ring (w22); the left end of the connecting rod (w21) is embedded in the upper side of the armature (21); and the iron plate (w5) is embedded in the outer side of the sliding ring (w22).

4. A railway signal dedicated AC relay according to claim 3, characterized in that: The limit block (w23) is provided with a clamping block (t1), an arc plate (t2), and a compression plate (t3); the arc plate (t2) is embedded on the outside of the compression plate (t3); the compression plate (t3) is attached to the outside of the clamping block (t1); the arc plate (t2) is frictionally matched with the inner side of the sliding ring (w22); and the clamping block (t1) is embedded on the outside of the fixing rod (w25).

5. The railway signal dedicated AC relay according to claim 1, characterized in that: The adjusting rod (23) is provided with a first track plate (r1), a movable block (r2), a support rod (r3), a round rod (r4), a snap-fit ​​plate (r5), and (r6); the round rod (r4) is embedded on the outside of (r6); the round rod (r4) is slidably fitted in the first track plate (r1); the support rod (r3) is embedded on the inside of (r6); the movable block (r2) moves in the gap inside (r6); the snap-fit ​​plate (r5) is installed on the outside of the movable block (r2); the snap-fit ​​plate (r5) and the first track plate (r1) are embedded inside the housing (24); and the moving iron sheet (22) is fitted on the inner end of (e3).

6. The special AC relay for railway signaling according to claim 5, characterized in that: The clamping plate (r5) is provided with a semicircular block (r51), an arc block (r52), and a second track plate (r53); the semicircular block (r51) is embedded inside the second track plate (r53); the arc block (r52) is clamped between the semicircular blocks (r51); the arc block (r52) is installed on the outside of the movable block (r2); and the arc blocks (r52) are evenly distributed in an annular shape on the outside of the movable block (r2).

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