CN217158063U

CN217158063U - Limiting type electromagnetic relay

Info

Publication number: CN217158063U
Application number: CN202220550292.6U
Authority: CN
Inventors: 黄成贵; 黄荣华
Original assignee: Ningbo Xinchuangzhi Electrical Appliance Co ltd
Current assignee: Ningbo Xinchuangzhi Electrical Appliance Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-08-09
Anticipated expiration: 2032-03-14

Abstract

The utility model discloses a spacing electromagnetic relay, which comprises a shell, a relay body and a base, wherein a notch and a rotation spacing part assembly are arranged at the outer side of the shell, which is close to a tension detection device, and the rotation spacing part assembly comprises a pair of fixing parts, a rotating wheel, a rotating shaft, a rocking handle, a rocking bar and a spacing rod; a plurality of fixing holes are uniformly formed in the rotating wheel close to the edge, a pull rope is wound on the outer side of the rotating wheel, and two ends of the pull rope are fixedly connected with the tension detection device and the rotating wheel respectively; a pair of mounting relatively fixed is on the lateral wall of casing, and the pivot rotationally runs through the setting between a pair of mounting, and the pivot runs through the centre of a wheel of runner and with runner fixed connection, and the rocking handle is located the outside of mounting, rocking handle vertical fixation pivot, and the rocker is perpendicular with the rocking handle, and the rocker rotationally fixes the one end of keeping away from the pivot at the rocking handle, and inside the rocker was cup jointed telescopically to the gag lever post, the shape looks adaptation of gag lever post and fixed orifices. The utility model discloses the accurate elasticity that realizes the extension spring is adjusted conveniently.

Description

Limiting type electromagnetic relay

Technical Field

The utility model relates to a relay technical field especially relates to a spacing formula electromagnetic relay.

Background

An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is usually applied in an automatic control circuit, and which is actually an "automatic switch" that uses a smaller current and a lower voltage to control a larger current and a higher voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. At present, in the use process of the existing electromagnetic relay, due to the long-term armature of the coil on the iron core, the elasticity of the extension spring connected with the armature is reduced under the condition of long-term extension, and the elasticity of the extension spring needs to be adjusted or replaced. However, the conventional electromagnetic relay is inconvenient to adjust the elasticity of the extension spring.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a spacing formula electromagnetic relay for accurate elasticity to extension spring in the relay is adjusted conveniently.

In order to achieve the above purpose, the utility model provides a following technical scheme: a limiting electromagnetic relay comprises a shell, a relay body and a base, wherein the relay body is positioned in the shell, the base is positioned at the lower end of the relay body, and the relay body comprises a coil support, an armature support, an iron core, an extension spring, a tension detection device and an armature;

the coil support and the armature support are relatively fixed on the upper end face of the base, the iron core is horizontally fixed on the coil support, a coil is sleeved on the outer side wall of the iron core, an armature is rotatably arranged in the armature support, the extension spring and the tension detection device are positioned at the upper end of the coil support, the upper end of the armature is detachably connected with one end of the extension spring, and one end of the extension spring, which is far away from the armature, is detachably connected with the tension detection device;

a communicating notch and a rotation limiting component are arranged on the outer side of the shell close to the tension detection device, and the rotation limiting component comprises a pair of fixing pieces, a rotating wheel, a rotating shaft, a rocking handle, a rocking bar and a limiting rod;

a plurality of fixing holes are uniformly formed in the rotating wheel close to the edge, a pull rope is wound on the outer side of the rotating wheel, one end of the pull rope penetrates through the communicating notch and is fixedly connected with the tension detection device, and the other end of the pull rope is fixedly connected with the rotating wheel;

the pair of fixing pieces are relatively fixed on the outer side wall of the shell, the rotating shaft is rotatably arranged between the pair of fixing pieces in a penetrating mode, the rotating shaft penetrates through the wheel center of the rotating wheel and is fixedly connected with the rotating wheel, the rocking handle is located on the outer side of the fixing pieces and is vertically fixed with the rotating shaft, the rocking bar is perpendicular to the rocking handle, the rocking bar is rotatably fixed at one end, away from the rotating shaft, of the rocking handle, the limiting rod is telescopically sleeved inside the rocking bar, and the limiting rod is matched with the fixing hole in shape;

when the rocking handle rotates, the pull rope on the rotating wheel is tightened or loosened, and the extension spring is stretched or contracted; when the rocker rotates to face the rotating wheel, the limiting rod extends out of the rocker and penetrates through the fixing hole.

Furthermore, a display screen used for displaying the tension of the extension spring is embedded on the shell, and the display screen is electrically connected with the tension detection device.

Furthermore, the side of casing has seted up the opening and shutting mouth, the opening and shutting mouth is located extension spring's side, be equipped with the subassembly that opens and shuts in the opening and shutting mouth, the subassembly that opens and shuts includes the opening and shutting board, the axle that opens and shuts and a plurality of buckle, the axle that opens and shuts runs through the opening and shutting board rotationally sets up in the opening and shutting mouth, the opening and shutting board can set up with opening and shutting in the opening and shutting mouth, a plurality of the buckle sets up the opening and shutting board is kept away from open and shutting axle one is served, a plurality of catching grooves have still been seted up to the side of casing, the buckle lock joint is in the catching groove.

Furthermore, a sealing ring is arranged between the opening and closing opening and the opening and closing plate.

Further, the sealing ring is made of a silica gel material.

Furthermore, the upper portion of the limiting rod is provided with a limiting lug, the rocker is provided with a telescopic opening, the edge of the telescopic opening is provided with a limiting notch, a telescopic cavity is arranged inside the rocker, the limiting rod and the limiting lug stretch out and draw back in the telescopic cavity through the telescopic opening and the limiting notch respectively, a telescopic spring is arranged in the telescopic cavity, and the telescopic spring is clamped between the lower end of the limiting rod and the upper end of the inner wall of the bottom end of the telescopic cavity.

Furthermore, the upper portion of the limiting rod is further provided with a rotating notch, a rotating limiting portion is rotatably arranged in the rotating notch, and the rotating limiting portion is located at the upper end of the limiting protruding block.

The utility model has the advantages that:

the utility model detects the tension of the extension spring by arranging the tension detection device and displays the tension through the display screen, thereby facilitating the observation of a user; meanwhile, the rotation limiting assembly is arranged on the side edge of the shell, and a user rotates the rocking handle according to the observed pulling force, so that the pulling rope rotates on the rotating wheel to be tightened or loosened, and the elastic force of the stretching spring is accurately and conveniently adjusted.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is an external structural view of the present invention;

fig. 3 is an internal cross-sectional view of the rocker of the present invention.

Reference numerals are as follows: 1. a housing; 11. a communication notch; 12. a display screen; 13. opening and closing the opening; 14. buckling grooves; 2. a relay body; 21. a coil support; 22. an armature support; 23. an iron core; 24. an extension spring; 25. a tension detection device; 26. an armature; 27. a coil; 3. a base; 4. a rotation limit component assembly; 41. a fixing member; 42. a rotating wheel; 421. a fixing hole; 44. a rocking handle; 45. a rocker; 452. a limiting notch; 453. a telescopic cavity; 454. a tension spring; 46. a limiting rod; 461. a limiting bump; 462. rotating the notch; 463. a rotation limiting part; 47. pulling a rope; 5. an opening and closing assembly; 51. opening and closing the board; 52. opening and closing the shaft; 53. buckling; 54. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and fig. 2, the limiting electromagnetic relay of the present embodiment includes a housing 1, a relay body 2, and a base 3, wherein the relay body 2 is located inside the housing 1, the base 3 is located at a lower end of the relay body 2, and the relay body 2 includes a coil support 21, an armature support 22, an iron core 23, an extension spring 24, a tension detection device 25, and an armature 26;

the coil support 21 and the armature support 22 are relatively fixed on the upper end face of the base 3, the iron core 23 is horizontally fixed on the coil support 21, the outer side wall of the iron core 23 is sleeved with a coil 27, an armature 26 is rotatably arranged in the armature support 22, the extension spring 24 and the tension detection device 25 are positioned at the upper end of the coil support 21, the upper end of the armature 26 is detachably connected with one end of the extension spring 24, and one end of the extension spring 24, which is far away from the armature 26, is detachably connected with the tension detection device 25;

a communicating notch 11 and a rotation limiting assembly 4 are arranged at the position, close to the tension detection device 25, on the outer side of the shell 1, and the rotation limiting assembly 4 comprises a pair of fixing pieces 41, a rotating wheel 42, a rotating shaft, a rocking handle 44, a rocking bar 45 and a limiting rod 46;

a plurality of fixing holes 421 are uniformly formed in the rotating wheel 42 close to the edge, a pull rope 47 is wound on the outer side of the rotating wheel 42, one end of the pull rope 47 penetrates through the communicating notch 11 and is fixedly connected with the tension detection device 25, and the other end of the pull rope 47 is fixedly connected with the rotating wheel 42;

the pair of fixing pieces 41 are relatively fixed on the outer side wall of the shell 1, the rotating shaft is rotatably arranged between the pair of fixing pieces 41 in a penetrating mode, the rotating shaft penetrates through the wheel center of the rotating wheel 42 and is fixedly connected with the rotating wheel 42, the rocking handle 44 is located on the outer side of the fixing pieces 41, the rocking handle 44 is vertically fixed with the rotating shaft, the rocking rod 45 is perpendicular to the rocking handle 44, the rocking rod 45 is rotatably fixed at one end, away from the rotating shaft, of the rocking handle 44, the limiting rod 46 is telescopically sleeved inside the rocking rod 45, and the limiting rod 46 is matched with the fixing hole 421 in shape;

a display screen 12 for displaying the tensile force of the extension spring 24 is further embedded in the shell 1, and the display screen 12 is electrically connected with a tensile force detection device 25;

when the rocking handle 44 rotates, the pulling rope on the rotating wheel 42 is tightened or loosened, and the extension spring 24 is stretched or contracted; when the rocker 45 rotates to face the roller 42, the limiting rod 46 extends out of the rocker 45 and penetrates through the fixing hole 421.

The utility model is provided with a tension detection device 25 to detect the tension of the extension spring 24 and display the tension through the display screen 12, which is convenient for the user to observe; meanwhile, a rotation limiting assembly is arranged on the side edge of the shell 1, and a user rotates the rocking handle 44 according to the observed pulling force, so that the pulling rope 47 rotates on the rotating wheel 42 to be tightened or loosened, and the elastic force of the pulling spring 24 is accurately and conveniently adjusted.

Preferably, the opening and closing opening 13 is formed in the side end of the casing 1, the opening and closing opening 13 is located on the side of the extension spring 24, the opening and closing assembly 5 is arranged in the opening and closing opening 13, the opening and closing assembly 5 comprises an opening and closing plate 51, an opening and closing shaft 52 and a plurality of buckles 53, the opening and closing shaft 52 penetrates through the opening and closing plate 51 and is rotatably arranged in the opening and closing opening 13, the opening and closing plate 51 is arranged in the opening and closing opening 13 in an opening and closing manner, the plurality of buckles 53 are arranged on one end, far away from the opening and closing shaft 52, of the opening and closing plate 51, the side end of the casing 1 is further provided with a plurality of buckling grooves 14, and the buckles 53 are buckled in the buckling grooves 14.

Specifically, in this embodiment, the opening assembly is disposed above the extension spring 24, so that when the extension spring 24 needs to be replaced, the opening plate 51 can be opened by rotating, the original extension spring 24 can be taken down through the opening and closing opening 13, a new extension spring 24 is installed, and finally the opening plate 51 is rotated, so that the extension spring 24 can be replaced conveniently and quickly.

Preferably, a seal ring 54 is provided between the opening/closing part 13 and the opening/closing plate 51.

Specifically, in the present embodiment, the seal ring 54 is provided between the opening/closing opening 13 and the opening/closing plate 51, so that the sealing performance between the opening/closing opening 13 and the opening/closing plate 51 is effectively improved, and the durability of the relay body 2 in the housing 1 is improved.

Preferably, the sealing ring 54 is made of a silicone material.

Preferably, as shown in fig. 3, a limiting bump 461 is disposed on an upper portion of the limiting rod 46, the rocker 45 is provided with a telescopic opening, a limiting notch 452 is disposed at an edge of the telescopic opening, a telescopic cavity 453 is disposed inside the rocker 45, the limiting rod 46 and the limiting bump 461 respectively extend and retract in the telescopic cavity 453 through the telescopic opening and the limiting notch 452, a telescopic spring 454 is disposed in the telescopic cavity 453, and the telescopic spring 454 is clamped between a lower end of the limiting rod 46 and an upper end of an inner wall of a bottom end of the telescopic cavity 453.

Specifically, in this embodiment, when the limiting rod 46 needs to extend into the telescopic cavity 453, the limiting protrusion 461 is aligned with the limiting notch 452, the limiting rod 46 is pushed into the telescopic cavity 453, and then the limiting rod 46 is rotated, so that the limiting protrusion 461 is not aligned with the limiting notch 452, at this time, the limiting protrusion 461 is pushed upward under the pushing of the elastic force of the telescopic spring 454, and because the limiting protrusion 461 is not aligned with the limiting notch 452, the limiting protrusion 461 is clamped in the telescopic cavity 453, and at this time, the limiting rod 46 is retracted in the telescopic cavity 453; when the position-limiting rod 46 needs to extend out of the telescopic cavity 453, the position-limiting rod 46 is rotated to align the position-limiting protrusion 461 with the position-limiting notch 452, and the position-limiting rod 46 is pushed out of the telescopic cavity 453 by the elastic force of the telescopic spring 454.

Preferably, the upper portion of the limiting rod 46 is further provided with a rotation notch 462, a rotation limiting portion 463 is rotatably disposed in the rotation notch 462, and the rotation limiting portion 463 is located at the upper end of the limiting projection 461.

Specifically, in this embodiment, the upper portion of the limiting rod 46 is provided with the rotation limiting portion 463, and after the limiting rod 46 penetrates through the fixing hole 421, the rotation limiting portion 463 is rotated and pulled out, so that the limiting rod 46 is clamped with the rotating wheel 42; when the limiting rod 46 needs to be retracted into the telescopic cavity 453, the rotation limiting portion 463 is rotated into the rotation notch 462, so that the limiting rod 46 can be conveniently retracted.

The working principle is as follows:

tension detection device 25 real-time detection extension spring 24's pulling force and show through display screen 12, when the pulling force that needs to extension spring 24 is adjusted, with gag lever post 46 on rocker 45 from fixed orifices 421 shrink to rocker 45 inside, and then rotate rocker 45 to the position of being convenient for to rock, through rocking rocker 45, make rocking handle 44 rotate, and then drive stay cord 47 on the runner 42 and tighten up or relax tension detection device 25, make extension spring 454 stretched or contract, the pulling force that until extension spring 24 is in predetermined standard tension interval. After the tension of the extension spring 454 is adjusted, the rocker 45 is rotated to face the rotating wheel 42, and the limiting rod 46 on the rocker 45 extends out from the inside of the rocker 45, so that the limiting rod 46 extends into the fixing hole 421 at the corresponding position on the rotating wheel 42, and the fixing is completed.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A spacing formula electromagnetic relay which characterized in that: the relay comprises a shell (1), a relay body (2) and a base (3), wherein the relay body (2) is positioned inside the shell (1), the base (3) is positioned at the lower end of the relay body (2), and the relay body (2) comprises a coil support (21), an armature support (22), an iron core (23), an extension spring (24), a tension detection device (25) and an armature (26);

the coil support (21) and the armature support (22) are relatively fixed on the upper end face of the base (3), the iron core (23) is horizontally fixed on the coil support (21), a coil (27) is sleeved on the outer side wall of the iron core (23), an armature (26) is rotatably arranged in the armature support (22), the extension spring (24) and the tension detection device (25) are positioned at the upper end of the coil support (21), the upper end of the armature (26) is detachably connected with one end of the extension spring (24), and one end, far away from the armature (26), of the extension spring (24) is detachably connected with the tension detection device (25);

a communicating notch (11) and a rotation limiting assembly (4) are arranged on the outer side of the shell (1) close to the tension detection device (25), and the rotation limiting assembly (4) comprises a pair of fixing pieces (41), a rotating wheel (42), a rotating shaft, a rocking handle (44), a rocking bar (45) and a limiting rod (46);

a plurality of fixing holes (421) are uniformly formed in the rotating wheel (42) close to the edge, a pull rope (47) is wound on the outer side of the rotating wheel (42), one end of the pull rope (47) penetrates through the communicating notch (11) and is fixedly connected with the tension detection device (25), and the other end of the pull rope (47) is fixedly connected with the rotating wheel (42);

the pair of fixing pieces (41) are fixed on the outer side wall of the shell (1) relatively, the rotating shaft is rotatably arranged between the pair of fixing pieces (41) in a penetrating mode, the rotating shaft penetrates through the wheel center of the rotating wheel (42) and is fixedly connected with the rotating wheel (42), the rocking handle (44) is located on the outer side of the fixing pieces (41), the rocking handle (44) is vertically fixed with the rotating shaft, the rocking rod (45) is perpendicular to the rocking handle (44), the rocking rod (45) is rotatably fixed at one end, far away from the rotating shaft, of the rocking handle (44), the limiting rod (46) is telescopically sleeved inside the rocking rod (45), and the limiting rod (46) is matched with the fixing hole (421) in shape;

a display screen (12) for displaying the tension of the extension spring (24) is further embedded in the shell (1), and the display screen (12) is electrically connected with the tension detection device (25);

when the rocking handle (44) rotates, the pulling rope (47) on the rotating wheel (42) is tightened or loosened, and the extension spring (24) is stretched or contracted; when the rocker (45) rotates to face the rotating wheel (42), the limiting rod (46) extends out of the rocker (45) and penetrates through the fixing hole (421).

2. The limit type electromagnetic relay according to claim 1, characterized in that: opening and shutting mouth (13) have been seted up to the side of casing (1), opening and shutting mouth (13) are located extension spring (24) side, be equipped with opening and shutting subassembly (5) in opening and shutting mouth (13), opening and shutting subassembly (5) are including open-close plate (51), axle (52) and a plurality of buckle (53), axle (52) of opening and shutting run through open-close plate (51) rotationally set up in opening and shutting mouth (13), open-close plate (51) can set up with opening and shutting in opening and shutting mouth (13), it is a plurality of buckle (53) set up open-close plate (51) are kept away from axle (52) one end opens and shuts, a plurality of catching grooves (14) have still been seted up to the side of casing (1), buckle (53) lock joint is in catching groove (14).

3. The limit type electromagnetic relay according to claim 2, characterized in that: a sealing ring (54) is arranged between the opening and closing opening (13) and the opening plate (51).

4. The limit type electromagnetic relay according to claim 3, characterized in that: the sealing ring (54) is made of a silica gel material.

5. The limit type electromagnetic relay according to claim 1, characterized in that: the upper portion of gag lever post (46) is equipped with spacing lug (461), the expansion mouth has been seted up in rocker (45), the edge of expansion mouth is equipped with spacing breach (452), the inside flexible cavity (453) that is equipped with of rocker (45), gag lever post (46) with spacing lug (461) pass through respectively the expansion mouth with spacing breach (452) is in stretch out and draw back in flexible cavity (453), be equipped with expanding spring (454) in flexible cavity (453), expanding spring (454) press from both sides and establish the lower extreme of gag lever post (46) with between the bottom inner wall upper end of flexible cavity (453).

6. The limit type electromagnetic relay according to claim 5, characterized in that: the upper portion of gag lever post (46) still is equipped with rotation notch (462), be provided with in the rotation notch (462) and rotate spacing portion (463), it is located to rotate spacing portion (463) the upper end of spacing lug (461).