CN215496411U

CN215496411U - Explosion-proof bidirectional pull-cord switch

Info

Publication number: CN215496411U
Application number: CN202120837951.XU
Authority: CN
Inventors: 胡彦飞
Original assignee: Ebs Electromechanical Manufacturing Shanghai Co ltd
Current assignee: Ebs Electromechanical Manufacturing Shanghai Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-01-11
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to the technical field of switch devices, and discloses an explosion-proof bidirectional pull-cord switch which comprises a base. This two-way stay switch of flame-proof type, the fixed transfer control switch of inner chamber through the device shell, and at transfer control switch's the fixed axis of rotation in the front, and rotate the plectrum at the outside swing joint of axis of rotation, and at the positive fixed mounting pole that rotates the plectrum, and at the outside winding connection wire rope of installation pole, and both sides are rotated about the inner chamber of device shell and are connected the cavity pole, and at the fixed reset spring of the inner chamber of cavity pole, and at the fixed movable rod of reset spring's one end, and at the positive fixed connecting rod of movable rod, and the connecting rod is fixed with the rotation plectrum, after the wire rope of pulling both sides, the connecting rod of both sides is stretched this moment, make and rotate the plectrum and rotate, when loosening the wire rope of both sides, the reset spring of both sides resets this moment, make and rotate the plectrum and turn to just, thereby the effect of replacing artifical automatic re-setting has been reached.

Description

Explosion-proof bidirectional pull-cord switch

Technical Field

The utility model relates to the technical field of switch devices, in particular to an explosion-proof bidirectional pull-cord switch.

Background

The pull-cord switch is commonly called as an emergency stop switch, and when the emergency stop switch is acted on a belt type conveying field and needs to stop, the emergency stop switch stops the conveyor through the action of the switch. The pull rope switches are arranged on the machine frames on the two sides of the belt conveyor, and the switches are connected by steel wire ropes along the two sides of the belt conveyor. When the conveyer belt equipment has an emergency accident, the steel wire rope is pulled at any position along the line on site, the steel wire rope pulls the rocker arm to rotate, the transmission shaft drives the torsion spring to enable the precision cam to displace, the microswitch is driven to cut off the control circuit, and the conveyer stops running.

During the actual use, still have some shortcomings, for example stay cord switch all connects the stopper through the thin wire rope traction that long distance stretch was laid in the course of the work, and the reset assembly of stay cord switch at present stage is stand alone type operation, needs artifical manual operation, has increased the time consumption that the device reset the operation, has reduced the work efficiency of device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an explosion-proof bidirectional pull-cord switch which has the advantage of replacing manual automatic reset and solves the problems in the background technology.

The utility model provides the following technical scheme: a flame-proof type bidirectional pull switch comprises a base, wherein a device shell is fixedly installed at the top of the base, a switching control switch is fixedly installed in the middle of an inner cavity of the device shell, a rotating shaft is fixedly installed on the front face of the switching control switch, a rotating shifting piece is rotatably connected to the outer side of the rotating shaft, a bolt located right in front of the rotating shifting piece is fixedly sleeved on the outer side of the rotating shaft, hollow rods are rotatably connected to the upper side and the lower side of the inner cavity of the device shell, return springs are fixedly connected to the inner cavities of the two hollow rods, movable rods are fixedly connected to the other ends of the two return springs and movably sleeved with the hollow rods, connecting rods are movably connected to the front faces of the two movable rods and movably connected with the rotating shifting piece, installation rods are fixedly installed on the front faces, close to the upper side and the lower side, of the rotating shifting piece, and steel wire ropes are wound on the outer sides of the mounting rods.

Preferably, openings are formed in two sides of the device shell, and one end of the steel wire rope penetrates through the inside of the opening and is located on the outer side of the device shell.

Preferably, the front surface of the device shell is movably provided with a cover plate, and the middle of the front surface of the cover plate is fixedly provided with a rotating disk.

Preferably, wire winding grooves are formed in the outer sides of the two mounting rods, and the steel wire rope is located inside the wire winding grooves.

Preferably, the upper side and the lower side of the inner cavity of the device shell are fixedly connected with connecting pieces, and the hollow rod is rotatably connected with the connecting pieces.

Compared with the prior art, the utility model has the following beneficial effects:

1. the explosion-proof bidirectional pull-cord switch is characterized in that a transfer control switch is fixed in an inner cavity of a device shell, a rotating shaft is fixed on the front surface of the transfer control switch, a rotating shifting sheet is movably connected on the outer side of the rotating shaft, a rod is fixedly arranged on the front surface of the rotary shifting piece, a steel wire rope is wound and connected on the outer side of the mounting rod, a hollow rod is rotatably connected on the upper side and the lower side of the inner cavity of the device shell, a return spring is fixed in the inner cavity of the hollow rod, a movable rod is fixed at one end of the return spring, a connecting rod is fixed on the front side of the movable rod, the connecting rods are fixed with the rotating shifting sheet, when the steel wire ropes on the two sides are pulled, the connecting rods on the two sides are stretched, so that the rotating shifting sheet rotates, when the steel wire ropes on the two sides are loosened, the return springs on the two sides are reset at the moment, so that the rotary shifting piece rotates to be right, and the effect of replacing manual automatic reset is achieved.

2. This two-way stay switch of flame-proof type, the axis of rotation is fixed through the inner chamber of device shell, and the plectrum is rotated in the interactive installation in the outside of axis of rotation, and the fixed bolt that cup joints in the outside of axis of rotation, and the bolt is located the dead ahead of axis of rotation, and both sides rotate about the inner chamber of device shell and connect the cavity pole, and at the fixed reset spring of the inner chamber of cavity pole, and at the fixed movable rod of reset spring's one end, and the positive fixed connection pole at the movable rod, and the connecting rod is fixed with the rotation plectrum, make after the pulling wire rope when rotating the plectrum and reseing, because the spacing of bolt, and reset spring through upper and lower both sides, thereby make to rotate the plectrum and can steadily rotate, thereby the effect that has improved the device's stability has been reached.

Drawings

FIG. 1 is a schematic view of the internal structure of the housing of the apparatus of the present invention;

FIG. 2 is an exploded view of the hollow rod and the movable rod of the present invention;

FIG. 3 is a front view of the device housing of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

In the figure: 1. a base; 2. rotating the shifting sheet; 3. rotating the disc; 4. a cover plate; 5. mounting a rod; 6. a hollow shaft; 7. a movable rod; 8. a bolt; 9. a rotating shaft; 10. a wire rope; 11. a device housing; 12. a transfer control switch; 13. a connecting rod; 14. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an explosion-proof bidirectional pull switch comprises a base 1, a device housing 11 is fixedly installed on the top of the base 1, a transfer control switch 12 is fixedly installed in the middle of an inner cavity of the device housing 11, a rotating shaft 9 is fixedly installed on the front side of the transfer control switch 12, a rotating dial 2 is rotatably connected to the outer side of the rotating shaft 9, a bolt 8 located right in front of the rotating dial 2 is fixedly sleeved on the outer side of the rotating shaft 9, hollow rods 6 are rotatably connected to the upper side and the lower side of the inner cavity of the device housing 11, return springs 14 are fixedly connected to the inner cavities of the two hollow rods 6, movable rods 7 are fixedly connected to the other ends of the two return springs 14, the movable rods 7 are movably sleeved with the hollow rods 6, connecting rods 13 are movably connected to the front sides of the two movable rods 7, the two connecting rods 13 are movably connected to the rotating dial 2, and installation rods 5 are fixedly installed on the front side, close to the upper side and the lower side of the rotating dial 2, the outer sides of the installation rods 5 are respectively wound with a steel wire rope 10, the switching control switch 12 is fixed through the inner cavity of the device shell 11, the rotating shaft 9 is fixed on the front surface of the switching control switch 12, the rotating shifting piece 2 is movably connected on the outer side of the rotating shaft 9, the rod 5 is fixedly installed on the front surface of the rotating shifting piece 2, the steel wire rope 10 is wound and connected on the outer side of the installation rod 5, the hollow rods 6 are rotatably connected on the upper side and the lower side of the inner cavity of the device shell 11, the return spring 14 is fixed on the inner cavity of the hollow rod 6, the movable rod 7 is fixed at one end of the return spring 14, the connecting rod 13 is fixed on the front surface of the movable rod 7, the connecting rod 13 is fixed with the rotating shifting piece 2, after the steel wire ropes 10 on the two sides are pulled, the connecting rods 13 on the two sides are stretched, so that the rotating shifting piece 2 rotates, when the steel wire ropes 10 on the two sides are loosened, the return springs 14 on the two sides are reset, the rotating poking sheet 2 is rotated to be right, thereby achieving the effect of replacing manual automatic reset, the rotating shaft 9 is fixed through the inner cavity of the device shell 11, the outer side of the rotating shaft 9 is interactively provided with a rotating shifting piece 2, the outer side of the rotating shaft 9 is fixedly sleeved with a bolt 8, the bolt 8 is positioned right in front of the rotating shaft 9 and is rotatably connected with the hollow rod 6 at the upper side and the lower side of the inner cavity of the device shell 11, a return spring 14 is fixed in the inner cavity of the hollow rod 6, a movable rod 7 is fixed at one end of the return spring 14, a connecting rod 13 is fixed at the front of the movable rod 7, and the connecting rod 13 is fixed with the rotary plectrum 2, when the rotary plectrum 2 is reset after the steel wire rope 10 is pulled, due to the limiting of the bolt 8 and the return springs 14 on the upper side and the lower side, the rotary shifting piece 2 can rotate stably, and the effect of improving the stability of the device is achieved.

Wherein, the opening has all been seted up to the both sides of device shell 11, and open-ended inside is located the outside of device shell 11 is passed to wire rope 10's one end, through setting up the opening, makes things convenient for wire rope 10's activity.

Wherein, the front movable mounting of device shell 11 has apron 4, and fixed mounting has rotary disk 3 in the middle of the front of apron 4, through installing apron 4 to conveniently open apron 4, thereby conveniently change the maintenance to the part of device shell 11 inside.

Wherein, the wire winding groove has all been seted up in the outside of two installation poles 5, and wire rope 10 is located the inside in wire winding groove for wire rope 10's one end can be with installation pole 5 firm connection, prevents to stimulate wire rope 10's in-process and appears becoming flexible.

Wherein, both sides are all fixedly connected with the connecting piece about the inner chamber of device shell 11, and cavity pole 6 rotates with the connecting piece to be connected.

The working principle is as follows: this flame-proof type two-way stay cord switch when using, at first, run through the bayonet socket of device shell 11 both sides with the wire rope 10 of both sides, then twine the winding inslot in the installation pole 5 outside with two wire rope 10's one end, in device emergency braking in-process, the wire rope 10 of pulling both sides, rotate plectrum 2 this moment and rotate, and drive the movable rod 7 that drives both sides about and remove, two reset spring 14 are stretched about simultaneously, after emergency treatment accomplishes, loosen the wire rope 10 of both sides, two reset spring 14 reset this moment, make two movable rod 7 remove, then rotate 2 antiport of plectrum to returning just, accomplish the device and reset, thereby need not artifical manual reset operation, the simple operation nature of device has been improved, the practicality of device has been increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-way stay cord switch of flame-proof type, includes base (1), its characterized in that: the device comprises a base (1), a device shell (11) is fixedly mounted at the top of the base (1), a switching control switch (12) is fixedly mounted in the middle of an inner cavity of the device shell (11), a rotating shaft (9) is fixedly mounted on the front side of the switching control switch (12), a rotating shifting sheet (2) is rotatably connected to the outer side of the rotating shaft (9), a bolt (8) located right in front of the rotating shifting sheet (2) is fixedly sleeved on the outer side of the rotating shaft (9), hollow rods (6) are rotatably connected to the upper side and the lower side of the inner cavity of the device shell (11), return springs (14) are fixedly connected to the inner cavities of the hollow rods (6), a movable rod (7) is fixedly connected to the other end of the return springs (14), the movable rod (7) is movably sleeved with the hollow rods (6), and a connecting rod (13) is movably connected to the front side of the movable rod (7), two connecting rod (13) all with rotate plectrum (2) swing joint, the front of rotating plectrum (2) is close to the equal fixed mounting in upper and lower both sides has installation pole (5), wire rope (10) are all installed in the outside of installation pole (5) winding.

2. The explosion-proof bidirectional pull-cord switch according to claim 1, characterized in that: openings are formed in the two sides of the device shell (11), and one end of the steel wire rope (10) penetrates through the inside of the opening and is located on the outer side of the device shell (11).

3. The explosion-proof bidirectional pull-cord switch according to claim 1, characterized in that: the front face of the device shell (11) is movably provided with a cover plate (4), and the middle of the front face of the cover plate (4) is fixedly provided with a rotating disc (3).

4. The explosion-proof bidirectional pull-cord switch according to claim 1, characterized in that: wire winding grooves are formed in the outer sides of the two mounting rods (5), and the steel wire rope (10) is located inside the wire winding grooves.

5. The explosion-proof bidirectional pull-cord switch according to claim 1, characterized in that: the equal fixedly connected with connecting piece in both sides about the inner chamber of device shell (11), cavity pole (6) are connected with the connecting piece rotation.