Relay capable of preventing terminal from being bent

Abstract

The invention provides a relay capable of preventing a terminal from being bent, and relates to the technical field of relays, the relay comprises a relay body, and an electromagnet, a tension spring, an iron yoke and a movable contact are fixedly arranged in the relay body; a sliding insulating frame is arranged at the lower part in the relay body in a sliding manner; a static contact terminal is slidably arranged at the bottom of the relay body, and the top of the static contact terminal cannot penetrate out of the bottom of the relay body. Two groups of rotating protection plates are rotationally arranged below the two sides of the relay body; according to the invention, the rotary protection plate is arranged, a function of conveniently protecting the deformation of the terminal is provided, the rotary protection plate is turned downwards, then the four groups of side maintenance racks are pushed, the four groups of side maintenance racks are closed up to form a maintenance structure, the side maintenance racks are adsorbed and fixed through the positioning magnetic blocks, and the positioning magnetic block on the other side can provide limiting; at the moment, the static contact terminal can be protected in a fence mode, the static contact terminal which automatically slides out is prevented from being bent, the protection effect is good, and the problem that the terminal of an existing relay is inconvenient to protect is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and particularly relates to a relay for preventing terminal bending. Background Art

[0002] A relay is an electrical appliance that causes a predetermined step change in a controlled quantity in an electrical output circuit when the change in the input quantity reaches a specified requirement. Generally, it is installed through plug-in terminals at the bottom. However, during long-term placement, transportation, or a large number of integrated placements, some terminals may be bent accidentally during collisions, affecting the installation.

[0003] The currently used relays have the following disadvantages: 1. Existing relays lack a terminal maintenance structure, making it inconvenient to protect the terminals through deformation and not affecting the plugging steps during use; 2. It is inconvenient to adjust and control the plugging depth to perform plugging combinations; 3. They lack an adaptive arc protection function and are inconvenient to adjust the depth during the plugging process. Summary of the Invention

[0004] In view of this, the present invention provides a relay for preventing terminal bending, which has a telescopic partition, provides an arc protection function, can automatically adapt to telescoping, ensures that each group of static contact terminals is spaced apart, and avoids arcing and sparking caused by pulling out arcs between each group of static contact terminals.

[0005] The present invention provides a relay for preventing terminal bending, specifically including: a relay body, inside which an electromagnet, a tension spring, an iron yoke, and a moving contact are fixedly arranged; a sliding insulating frame is slidably arranged below the inside of the relay body; static contact terminals are slidably arranged at the bottom of the relay body, and the top of the static contact terminals cannot penetrate the bottom of the relay body; two groups of rotating guard plates are rotatably arranged below both sides of the relay body, and the rotating guard plates can rotate half a circle.

[0006] Optionally, a through groove for observation is provided on the front side of the relay body, and an observation mirror is fixedly sealed in the through groove. The observation mirror is made of transparent PVC material for convenient observation.

[0007] Optionally, a control lead screw is rotatably arranged inside the front side of the relay body, and the control lead screw is located behind the observation mirror; a control shaft is rotatably arranged at the position of the top of the observation mirror, the front end of the control shaft is an internal hexagonal end structure, and the rear end of the control shaft is connected to the top of the control lead screw through bevel gear transmission.

[0008] Optionally, four groups of inner sliding frames are fixedly arranged on both sides inside the relay body; two groups of side sliding grooves are integrally arranged on both sides of the sliding insulating frame, and the side sliding grooves are slidably connected to the inner sliding frames in a matching manner.

[0009] Optionally, two sets of positioning iron blocks are fixedly arranged below the middle of both sides of the relay body.

[0010] Optionally, two sets of fixed cross beams and two sets of inclined beams are integrally arranged in the middle of the sliding insulating frame, and the fixed cross beams and the inclined beams are fixed to the top ends of the static contact terminals; a nut seat is fixedly arranged above the front side of the sliding insulating frame, and the nut seat is in threaded connection with the control lead screw.

[0011] Optionally, an arc-proof plate is integrally arranged in the middle of the sliding insulating frame, and a telescopic partition plate is slidably arranged at the bottom of the arc-proof plate in cooperation with an internal spring.

[0012] Optionally, side maintenance frames are slidably arranged on both sides of the rotating protection plate, and positioning magnetic blocks are fixedly arranged at both ends of the side maintenance frames; when the rotating protection plate is arranged downward, the front and rear side maintenance frames can be adsorbed and fixed through the positioning magnetic blocks; when the rotating protection plate is arranged upward, the positioning magnetic blocks are adsorbed and fixed outside the positioning iron blocks.

[0013] The beneficial effects are as follows: 1. The present invention is provided with a rotating protection plate, which provides a function of conveniently protecting the terminals from deformation. Flip the rotating protection plate downward, and then push the four sets of side maintenance frames to bring the four sets of side maintenance frames closer together to form a maintenance structure. The side maintenance frames are adsorbed and fixed through the positioning magnetic blocks, and the other positioning magnetic blocks can provide limit; at this time, the static contact terminals can be protected in the form of a fence, avoiding the static contact terminals that slide out automatically from being bent, and the protection effect is good.

[0014] 2. The control lead screw is provided, which provides a function of adjusting and controlling the insertion depth. Align the end of the static contact terminal with the position to be inserted, use an inner hexagon wrench to rotate the control shaft, the control shaft drives the control lead screw to rotate in cooperation with the bevel gear, use the control lead screw to drive the nut seat to descend, lower the whole sliding insulating frame, and then use the fixed cross beams and the inclined beams to insert each group of static contact terminals downward. Whether it is inserted to an appropriate position can be observed through the observation mirror for complete insertion.

[0015] 3. The arc-proof plate and the telescopic partition plate are provided, which provide an adaptive arc-proof function. The arc-proof plate and the telescopic partition plate can automatically adapt to expansion and contraction to ensure that each group of static contact terminals are separated, avoiding arcing and sparking caused by the static contact terminals pulling out arcs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the schematic structural diagram of the enclosure state of the embodiment in the present invention; Figure 2 Shows the schematic structural diagram of the released enclosure state of the embodiment in the present invention; Figure 3 Shows the embodiment in the present invention Figure 1 of the cross-sectional structural diagram; Figure 4Shows an embodiment of the present invention Figure 2 Schematic cross-sectional structure diagram; Figure 5 Shows an embodiment of the present invention Figure 4 Schematic side-upward structure diagram; Figure 6 Shows an embodiment of the present invention Figure 4 Schematic side view structure diagram; Figure 7 Shows a three-dimensional structure diagram of the sliding insulating frame in an embodiment of the present invention; Figure 8 Shows a three-dimensional structure diagram of the rotating guard plate in an embodiment of the present invention.

[0017] List of reference numerals 1. Relay body; 101. Observation mirror; 102. Control lead screw; 103. Control shaft; 104. Inner sliding frame; 105. Positioning iron block; 2. Sliding insulating frame; 201. Side sliding groove; 202. Fixed cross beam; 203. Inclined beam; 204. Nut seat; 205. Arc-proof plate; 206. Telescopic partition; 3. Static contact terminal; 4. Rotating guard plate; 401. Side maintenance frame; 402. Positioning magnetic block. Detailed implementation manners

[0018] In order to make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention.

[0019] Embodiment 1: Please refer to the accompanying drawings in the specification, Figures 1 to 8 as shown: The present invention provides a relay for preventing terminal bending, including: a relay body 1, inside which an electromagnet, a tension spring, an iron yoke, and a moving contact are fixedly arranged; a sliding insulating frame 2 is slidably arranged below the inside of the relay body 1; a static contact terminal 3 is slidably arranged at the bottom of the relay body 1, and the top of the static contact terminal 3 cannot penetrate through the bottom of the relay body 1; two groups of rotating guard plates 4 are rotatably arranged below both sides of the relay body 1, and the rotating guard plates 4 can rotate half a circle.

[0020] Among them, a through groove for observation is formed on the front side of the relay body 1 itself, and an observation mirror 101 is hermetically fixed in the through groove. The observation mirror 101 is made of transparent PVC material convenient for observation.

[0021] Among them, a control lead screw 102 is rotatably arranged inside the front side of the relay body 1, and the control lead screw 102 is located behind the observation mirror 101; a control shaft 103 is rotatably arranged at the position of the top of the observation mirror 101. The front end of the control shaft 103 is an inner hexagonal end structure, and the rear end of the control shaft 103 is in bevel gear transmission connection with the top of the control lead screw 102.

[0022] Among them, four groups of inner sliding frames 104 are fixedly arranged on both inner sides of the relay body 1; two groups of side sliding grooves 201 are integrally arranged on both sides of the sliding insulating frame 2, and the side sliding grooves 201 are slidably connected with the inner sliding frames 104 in a matching manner.

[0023] Among them, two groups of positioning iron blocks 105 are fixedly arranged at the middle lower part on both sides of the relay body 1.

[0024] Among them, two groups of fixed cross beams 202 and two groups of inclined beams 203 are integrally arranged in the middle of the sliding insulating frame 2, and the fixed cross beams 202 and the inclined beams 203 are fixed to the top of the static contact terminal 3; a nut seat 204 is fixedly arranged above the front side of the sliding insulating frame 2, and the nut seat 204 is threadedly connected with the control lead screw 102.

[0025] Among them, an arc-proof plate 205 is integrally arranged in the middle of the sliding insulating frame 2, and a telescopic partition plate 206 is slidably arranged at the bottom of the arc-proof plate 205 in cooperation with an internal spring.

[0026] Among them, side maintenance frames 401 are slidably arranged on both sides of the rotary protection plate 4, and positioning magnetic blocks 402 are fixedly arranged at both ends of the side maintenance frames 401; when the rotary protection plate 4 is arranged downward, the front and rear side maintenance frames 401 can be adsorbed and fixed through the positioning magnetic blocks 402; when the rotary protection plate 4 is arranged upward, the positioning magnetic blocks 402 are adsorbed and fixed outside the positioning iron blocks 105.

[0027] As Figures 1-8 shown, the static contact terminal 3 is fixedly connected with the sliding insulating frame 2. Flip the rotary protection plate 4 upward, and then push the four groups of side maintenance frames 401 again. Use the positioning magnetic blocks 402 to adsorb and position the positioning iron blocks 105 for fixation. Furthermore, the side maintenance frames 401 are fixedly wrapped outside the relay body 1 without affecting the installation.

[0028] Align the end of the static contact terminal 3 with the position to be inserted, and then press for insertion. The static contact terminal 3 can only be inserted partially, and the remaining part needs to be inserted manually. Rotate the control shaft 103 with an inner hexagon wrench. The control shaft 103 drives the control lead screw 102 to rotate through the bevel gear. Use the control lead screw 102 to drive the nut seat 204 to descend, lower the entire sliding insulating frame 2, and then use the fixed cross beams 202 and the inclined beams 203 to insert each static contact terminal 3 downward. Whether it is inserted to an appropriate position can be observed through the observation mirror 101 for complete insertion.

[0029] Embodiment 2: On the basis of Embodiment 1, during normal placement, according to Figure 1In the state of , turn the rotating guard plate 4 downward, and then push the four groups of side maintenance frames 401 to bring the four groups of side maintenance frames 401 closer to form a maintenance structure. The side maintenance frames 401 are adsorbed and fixed by the positioning magnets 402, and the positioning magnets 402 on the other side can provide limit. At this time, the static contact terminal 3 can be protected in the form of a fence to prevent the static contact terminal 3 that slides out automatically from being bent.

[0030] Embodiment 3: On the basis of Embodiment 1, the arc-proof plate 205 and the telescopic partition 206 can automatically adapt to the telescopic movement to ensure that the static contact terminals 3 in each group are separated, and to prevent the static contact terminals 3 in each group from pulling out an arc and causing a spark.

[0031] The specific usage mode and function of this embodiment: In the present invention, the static contact terminal 3 is slidably arranged. When placed conventionally, according to Figure 1 In the state of , turn the rotating guard plate 4 downward, and then push the four groups of side maintenance frames 401 to bring the four groups of side maintenance frames 401 closer to form a maintenance structure. The side maintenance frames 401 are adsorbed and fixed by the positioning magnets 402, and the positioning magnets 402 on the other side can provide limit. At this time, the static contact terminal 3 can be protected in the form of a fence to prevent the static contact terminal 3 that slides out automatically from being bent.

[0032] During installation, turn the rotating guard plate 4 upward, and use the four groups of side maintenance frames 401 again. Use the positioning magnets 402 to adsorb and position the iron block 105 for fixation. Then, the side maintenance frames 401 are fixedly wrapped outside the relay body 1 without affecting the installation.

[0033] Align the end of the static contact terminal 3 with the position to be inserted, and then press to insert. The static contact terminal 3 can only be inserted partially, and the remaining part needs to be inserted manually. Rotate the control shaft 103 with an inner hexagon wrench. The control shaft 103 drives the control lead screw 102 to rotate through the bevel gear. Use the control lead screw 102 to drive the nut seat 204 to descend, and lower the sliding insulating frame 2 as a whole. Then, use the fixed cross beam 202 and the inclined beam 203 to insert the static contact terminals 3 in each group downward. Through the observation mirror 101, it can be observed whether it is inserted to an appropriate position for complete insertion.

Claims

1. A relay for preventing terminal bending, comprising: A relay body (1), wherein an electromagnet, a tension spring, an iron yoke and a moving contact are fixedly arranged inside the relay body (1); characterized in that a sliding insulating frame (2) is slidably arranged at the lower part of the relay body (1); a static contact terminal (3) is slidably arranged at the bottom of the relay body (1), and the top of the static contact terminal (3) cannot pass through the bottom of the relay body (1); two groups of rotating guard plates (4) are rotatably arranged at the lower part of both sides of the relay body (1), and the rotating guard plates (4) can rotate half a circle; the front side of the relay body (1) is provided with a through groove for observation, and an observation mirror (101) is sealed and fixed in the through groove; the front side of the relay body (1) is provided with a through groove for observation. A control screw (102) is rotatably provided at the bottom, and the control screw (102) is located behind the observation mirror (101); a control shaft (103) is rotatably provided at the top of the observation mirror (101), and the rear end of the control shaft (103) is connected to the top of the control screw (102) by a bevel gear transmission; two groups of fixed beams (202) and two groups of inclined beams (203) are integrally provided in the middle of the sliding insulating frame (2), and the fixed beams (202) and the inclined beams (203) are fixed to the top of the static contact terminal (3); a nut seat (204) is fixedly provided on the upper front side of the sliding insulating frame (2), and the nut seat (204) is threadedly connected to the control screw (102).

2. A relay for preventing terminal bending as claimed in claim 1, characterized in that: Four groups of inner slide frames (104) are fixedly arranged on both sides of the interior of the relay body (1); two groups of side slide grooves (201) are integrally arranged on both sides of the sliding insulating frame (2), and the side slide grooves (201) are matched and slidably connected with the inner slide frames (104).

3. A relay for preventing terminal bending as claimed in claim 2, characterized in that: Two groups of positioning iron blocks (105) are fixedly arranged at the lower middle part of both sides of the relay body (1).

4. A relay for preventing terminal bending as claimed in claim 3, characterized in that: An arc protection plate (205) is integrally arranged in the middle of the sliding insulating frame (2), and a telescopic partition plate (206) is slidably arranged at the bottom of the arc protection plate (205) in cooperation with a built-in spring.

5. A relay for preventing terminal bending as claimed in claim 4, characterized in that: Side maintenance frames (401) are slidably arranged on both sides of the rotating guard plate (4), and positioning magnetic blocks (402) are fixedly arranged on both ends of the side maintenance frames (401); when the rotating guard plate (4) is arranged downward, the front and rear side maintenance frames (401) can be fixed by adsorption through the positioning magnetic blocks (402); when the rotating guard plate (4) is arranged upward, the positioning magnetic blocks (402) are fixed by adsorption to the outside of the positioning iron block (105).

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