CN209981017U

CN209981017U - Emergency stop switch

Info

Publication number: CN209981017U
Application number: CN201920962318.6U
Authority: CN
Inventors: 陈志杰; 朱刘
Original assignee: Vital Materials Co Ltd
Current assignee: Kunming Forerunner New Material Technology Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-01-21
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses an emergency stop switch, including the switch casing, still include first member and second member, first member slides and sets up in the switch casing, just first member and metal contact, the one end of first member with the second member is located one end in the switch casing touches and connects, the other end of second member stretches out outside the switch casing, the middle part of second member is passed through the ball-type structure and is rotated and connect on the ball tile of switch casing. The utility model provides an emergency stop switch, the scram action is reliable, can make the switch action at the equidirectional homoenergetic, and the mode of action is various, and effective scope of action is big.

Description

Emergency stop switch

Technical Field

The utility model relates to an electrical equipment control technical field, in particular to emergency stop switch.

Background

An emergency stop switch, called emergency stop switch for short, belongs to a master control electric appliance, when the machine is in a dangerous state, the emergency stop switch cuts off the power supply to stop the operation of the equipment, thereby achieving the purpose of protecting the safety of human bodies and equipment.

At present, an emergency stop switch is usually a manually controlled push button, and is connected in series to a control circuit of equipment, the button is directly pressed in an emergency, and the control circuit is disconnected, so that the equipment is quickly stopped, and abnormal work of the equipment is avoided. The button switch can be operated only when the button is vertically pressed, and in some emergency situations, an operator cannot conveniently press the button due to the position relation or cannot accurately press the button on the switch in time due to the small pressing area of the button.

Therefore, it is an urgent need to solve the technical problem of the art to provide an emergency stop switch which is reliable in operation, operates in different directions, has various operation modes, and has a wide effective operation range.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an emergency stop switch makes the scram action reliable, can make the switch action in equidirectional homoenergetic, and the mode of action is various, and effective scope of action is big.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an emergency stop switch, includes the switch casing, still includes first member and second member, first member slides and sets up in the switch casing, just first member and metal contact, the one end of first member with the second member is located one end in the switch casing touches and connects, the other end of second member stretches out outside the switch casing, the middle part of second member is passed through the ball-type structure and is rotated the connection and be in on the ball tile of switch casing.

Preferably, be provided with the perpendicular in the switch casing the first mounting panel of the axial setting of first member, be provided with the first mount pad that is used for placing first spring on the first mounting panel, first member passes first mounting panel and first mount pad, first spring housing is established on the first member, the one end fixed connection of first spring is in on the first mounting panel, the other end is by being located guide structure location on the first member.

Preferably, the end part of the first mounting seat far away from the first mounting plate is provided with a guide groove matched with the guide structure for use, and the guide structure is slidably connected in the guide groove.

Preferably, the guide structure is a guide post or a guide bar arranged along the axial direction of the first rod.

Preferably, a metal connecting sheet used for contacting with the metal contact is fixedly connected to the first rod piece, and a blocking sheet used for limiting the moving position of the metal connecting sheet is arranged in the switch shell.

Preferably, the end parts of the first rod piece and the second rod piece, which are contacted, are provided with an arc-shaped raised head on one and an arc-shaped groove on the other, and the arc-shaped raised head and the arc-shaped groove are arranged in a matched manner.

Preferably, the arc-shaped raised head is a spherical raised head, an assembling groove is formed in the end portion of a rod piece provided with the spherical raised head, a ball is rotatably connected in the assembling groove, and the spherical raised head is a part of the ball, which is located outside the assembling groove.

Preferably, the side of the first rod piece is provided with a reset groove, a reset rod is connected in the first through hole at the corresponding position of the switch shell in a sliding manner, and the reset end of the reset rod is matched with the reset groove.

Preferably, a second mounting seat is arranged on the switch shell, a second spring is arranged in the second mounting seat, one end of the reset rod penetrates through the second mounting seat and extends into the inner cavity of the switch shell, the other end of the reset rod is fixedly connected with a reset button, and the reset button is connected to the second mounting seat in a sliding mode.

Preferably, the axial cross section of the reset groove along the first rod piece is of a right-angled triangle structure, one right-angled side of the right-angled triangle structure is parallel to the axial direction of the first rod piece, the other right-angled side of the right-angled triangle structure is perpendicular to the axial direction of the first rod piece, and the right angle of the right-angled triangle structure is close to the position of the second rod piece.

Preferably, a third mounting seat is arranged at a position where the second rod passes through the switch shell, and a third spring for resetting the second rod is arranged in the third mounting seat.

Preferably, be provided with the perpendicular in the switch casing the second mounting panel of the axial setting of first member, be provided with on the second mounting panel and be used for right the second through-hole of first member direction.

Preferably, the first rod and the second rod are both arranged perpendicular to the ground.

According to the technical scheme, the utility model provides an emergency stop switch, the middle part of second member is connected on the ball tile of switch casing through the rotation of ball-type structure, through setting up the action fulcrum of second member to foretell ball-type rotation connection structure to can realize triggering the switch action in a plurality of directions, improved the operation position scope that the switch triggered; when an emergency occurs, the operating handle can be deviated in various modes to trigger the switch to act, such as pushing, pulling, beating and the like, and the triggering modes are various. The length and the shape of the operating rod can be determined according to actual conditions, so that the operable effective area is increased; the position of the first rod piece is changed by operating one end of the second rod piece extending out of the switch shell, so that the control circuit is disconnected, and the emergency stop action is reliable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an emergency stop switch provided in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of a switch housing and internal components provided in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the switch housing and internal components of FIG. 2 at another angle;

fig. 4 is an enlarged schematic view of a portion a in fig. 2.

1. Switch housing, 2, second member, 3, first member, 4, ball-type structure, 5, third mount pad, 6, third spring, 7, arc-shaped protruding head, 8, arc-shaped recess, 9, first spring, 10, stop the piece, 11, metal connecting piece, 12, metal contact, 13, binding post, 14, reset groove, 15, fixing base, 16, reset button, 17, reset rod, 18, second mounting panel, 19, guide way, 20, guide structure, 21, first mount pad, 22, second mount pad, 23, second spring, 24, first mounting panel.

Detailed Description

The utility model discloses an emergency stop switch makes the scram action reliable, can make the switch action at the equidirectional homoenergetic, and the mode of action is various, and effective scope of action is big.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention discloses an emergency stop switch, which includes a switch housing 1, a first rod 3 and a second rod 2.

Specifically, the first rod 3 is slidably disposed in the switch housing 1, the first rod 3 contacts with the metal contact 12, the metal contact 12 is connected to the control circuit through the connection terminal 13, the metal contact 12 is a component for switching on and off the control circuit, and the first rod 3 slides, so that the purpose of switching on and off the control circuit is achieved. One end of the first rod piece 3 is in contact with one end of the second rod piece 2, which is positioned in the switch shell 1, the other end of the second rod piece 2 extends out of the switch shell 1 to form an operating handle, and the position of the first rod piece 3 is changed by operating one end of the second rod piece 2, which extends out of the switch shell 1, so that the control circuit is disconnected, and the emergency stop action is reliable.

Wherein, the middle part of the second rod 2 is rotatably connected on the ball tile of the switch shell 1 through a ball structure. The action fulcrum of the second rod piece 2 is set to be the spherical rotary connecting structure, so that the action of the switch can be triggered in multiple directions, and the operation azimuth range of switch triggering is improved. When an emergency occurs, the operating handle can be deviated in various modes to trigger the switch to act, such as pushing, pulling, beating and the like, and the triggering modes are various. The length and shape of the operating rod can be determined according to actual conditions. In installation and use, as long as the condition of interference or influence on switch action and reset does not occur, the length and the shape of the operating rod can be customized according to requirements, so that the operable effective area is increased.

In a specific embodiment, both ends of the ball tile are provided with a tapered structure, the opening positions of both ends are larger in size, and the positions close to the ball tile are smaller in size, so that the second rod 2 can conveniently have a sufficient rotation angle.

It will be appreciated that in other embodiments, the second lever 2 may be rotatably connected to the switch housing 1 by a rotating shaft, but the connection is limited to swinging along the rotating shaft, and the effective direction of action is limited.

Further, in order to enable the emergency stop switch to work reliably, a first mounting plate 24 perpendicular to the axial direction of the first rod 3 is arranged in the switch housing 1, a first mounting seat 21 used for placing the first spring 9 is arranged on the first mounting plate 24, a through hole through which the first rod 3 passes is arranged on the first mounting plate 24, and the first rod 3 passes through the first mounting plate 24 and the first mounting seat 21. Specifically, the first spring 9 is sleeved on the first rod 3, one end of the first spring 9 is fixedly connected to the first mounting plate 24, and the other end of the first spring is positioned by the guide structure 20 located on the first rod 3. When the control circuit is communicated, the end part of the first rod piece 3 is abutted against the end part of the second rod piece 2, at the moment, the first spring 9 is in a compressed state, when the second rod piece 2 is operated to be positioned at the position outside the switch shell 1, the second rod piece 2 rotates, the second rod piece 2 deviates from the original position, the end part of the first rod piece 3 is separated from the end part of the second rod piece 2, the first spring 9 extends, and meanwhile, the guide structure 20 is pushed to drive the first rod piece 3 fixedly connected with the first rod piece to move downwards, so that the first rod piece 3 is separated from the metal contact 12, and the control circuit is disconnected.

In order to control the moving direction of the first rod 3 and ensure the working reliability thereof, the end of the first mounting seat 21 far away from the first mounting plate 24 is provided with a guide groove 19 matched with the guide structure 20, and the guide structure 20 is slidably connected in the guide groove 19. By arranging the guide groove 19 and the guide structure 20 which are used in cooperation, it is ensured that the movement of the first rod 3 is limited to the up-and-down linear movement, and the rotation along the axial direction thereof does not occur.

Specifically, the guide structure 20 is a guide post or a guide bar disposed along the axial direction of the first pin 3.

In order to facilitate connection between the first rod 3 and the metal contact 12 and ensure connection reliability between the first rod and the metal contact 12, the first rod 3 is fixedly connected with a metal connecting sheet 11 for contacting with the metal contact 12. Specifically, the metal connecting sheet 11 is provided with a metal protrusion contacting and connecting with the metal contact 12. In order to prevent the first rod 3 from moving downwards for too long distance to cause structural damage or blocking phenomenon to the second rod 2 when the second rod 2 is operated to stop suddenly, a blocking sheet 10 for limiting the moving position of the metal connecting sheet 11 is arranged in the switch shell 1. Since the metal connecting plate 11 is fixedly connected to the first rod 3, when the blocking plate 10 blocks the metal connecting plate 11, the first rod 3 stops descending, and at this time, even if the first spring 9 sleeved on the first rod 3 does not return to a free length, the first rod 3 stops moving under the action of the blocking plate 10.

It can be understood that, as shown in fig. 2, the blocking sheet 10 may be a ring-shaped integral sheet, or may be several pieces that are uniformly distributed and located on the same horizontal plane.

In a specific embodiment, in order to ensure the sensitivity of the structural reaction during the operation, the ends of the first pin 3 that are in contact with the second pin 2 are provided with an arc-shaped protruding head 7 on one, and an arc-shaped groove 8 on the other, and the arc-shaped protruding head 7 and the arc-shaped groove 8 are arranged in a matching way. As shown in fig. 2 and 4, the arc-shaped protrusion 7 is provided on the second pin 2, and the arc-shaped recess 8 is provided on the first pin 3.

It can be understood that the required deviation angle of the triggering action of the second rod 2 can be changed by changing the sizes of the arc-shaped protruding head 7 and the arc-shaped groove 8, and the required deviation angle can be reduced by reducing the sizes of the arc-shaped protruding head 7 and the arc-shaped groove 8, so that the second rod 2 can be staggered from the first rod 3 to trigger the action as long as the second rod 2 generates smaller deviation movement, and the switch becomes more sensitive.

Specifically, the arc-shaped raised head 7 is a spherical raised head, an assembling groove is formed in the end portion of a rod piece provided with the spherical raised head, a ball is rotatably connected in the assembling groove, and the spherical raised head is a part of the ball, which is positioned outside the assembling groove. Through the arc-shaped raised head 7 with the ball structure, when the second rod piece 2 is operated to stop suddenly, the relative motion of the arc-shaped raised head 7 and the arc-shaped groove 8 is rolling, the friction is rolling friction, under the same condition, the friction force of the rolling friction is smaller than that of the sliding friction, the friction force is small, the abrasion of the arc-shaped raised head 7 and the arc-shaped groove 8 which generate the relative motion is small, and the service lives of the arc-shaped raised head 7 and the arc-shaped groove 8 are prolonged.

Referring to fig. 3, in order to make the emergency stop switch of the present invention recover to the original position after handling the emergency, the side of the first rod 3 is provided with a reset groove 14, and a reset rod 17 is slidably connected in the first through hole of the corresponding position of the switch housing 1. When reset is needed, the reset rod 17 is pressed to be inserted into the reset groove 14, so that the first rod piece 3 is pulled to move upwards for reset, and at the moment, the metal contact 12 is contacted with the connecting metal bump on the metal connecting sheet 11, and the control circuit is connected. The reset end of the reset rod 17 is disposed in cooperation with the reset groove 14, i.e., the reset end and the reset groove are correspondingly configured and dimensioned.

Specifically, in order to make the reset rod 17 conveniently insert into the reset groove 14, the reset groove 14 is a right-angled triangle structure along the axial cross section of the first rod 3, and a right-angled side of the right-angled triangle structure is parallel to the axial arrangement of the first rod 3, and another right-angled side is perpendicular to the axial arrangement of the first rod 3, and the right angle of the right-angled triangle structure is close to the position arrangement of the second rod 2. Through the structural arrangement, the tip of the reset end of the reset rod 17 is contacted with the hypotenuse of the right triangle structure, and the first rod piece 3 is pushed to reset along with the insertion of the reset end of the reset rod 17. After the first rod 3 is reset, the end of the second rod 2 is propped against the end of the first rod 3 again.

After the first rod 3 is reset, the reset rod 17 is pulled out to prevent the influence of the next sudden stop operation.

In one embodiment, reset lever 17 is manually withdrawn.

In another embodiment, the switch housing 1 is provided with a second mounting seat 22, a second spring 23 is provided in the second mounting seat 22, one end of the reset rod 17 passes through the second mounting seat 22 and extends into the inner cavity of the switch housing 1, the other end is fixedly connected with the reset button 16, and the reset button 16 is slidably connected to the second mounting seat 22. When the first rod 3 needs to be reset, the reset button 16 is pressed, the reset button 16 drives the reset rod 17 to be inserted into the reset groove 14, after the first rod 3 is reset, the force for pressing the reset button 16 is removed, and under the elastic force action of the second spring 23, the end part of the reset rod 17 is pulled out of the reset groove 14.

Specifically, one end of the second spring 23 is fixedly connected to the switch housing 1, and the other end is fixed to the reset button 16.

In order to ensure the reliability of the reset of the second rod 2, a third mounting seat 5 is arranged at the position where the second rod 2 passes through the switch shell 1, and a third spring 6 for resetting the second rod 2 is arranged in the third mounting seat 5. One end of the third spring 6 is fixedly connected in the third mounting seat 5, and the other end is connected on the second rod 2.

In order to stabilize the movement of the first rod 3, a second mounting plate 18 is disposed in the switch housing 1 and perpendicular to the axial direction of the first rod 3, and a second through hole for guiding the first rod 3 is disposed in the second mounting plate 18. Through two through-holes on second mounting panel 18 and the first mounting panel 24 spacing, effectively prevented rocking in the first member 3 motion process.

Referring to fig. 2, the first bar 3 and the second bar 2 are both arranged perpendicular to the ground when installed and in use.

For convenient installation, switch housing 1's surface symmetry is provided with a plurality of fixing bases 15, is provided with connect the through-hole on the fixing base 15, so that will the utility model discloses an emergency stop switch fixed connection is at outside mounted position.

In the initial state, the arc-shaped projection 7 is engaged with the arc-shaped groove 8, the first spring 9 is in a compressed state, the third spring 6 is in an undeformed state, and the metal contact 12 is in contact with the metal projection on the metal connecting piece 11. The second pin 2 is deviated by pushing or pulling or the like to a certain angle to stagger the arc projection 7 and the arc recess 8. At the moment of staggering, because the blocking effect of the second rod piece 2 is lost, the first rod piece 3 is pushed towards the second rod piece 2 by the first spring 9 and drives the metal connecting piece 11 to separate the contacts until the metal connecting piece 11 collides with the blocking piece 10, and the first rod piece 3 stops acting to complete the operation of breaking the circuit. At this time, the first spring 9 is extended and the third spring 6 is in a deformed state.

Because the first rod piece 3 is displaced towards the second rod piece 2, the second rod piece 2 cannot return to the original position, the situation that the second rod piece 2 pushes the first rod piece 3 back to the original position to make the contact be connected again is effectively avoided, and the reliability of the circuit breaking is ensured.

After the safety hazard in the circuit is eliminated, the reset button 16 is pressed to generate the relative movement between the reset rod 17 and the reset groove 14, and the first rod 3 is retreated to the initial position. The second pin 2 loses the resistance of the first pin 3 and the third spring 6 recovers the deformation, so that the second pin 2 finally returns to the initial position. And (4) releasing the reset button 16, and butting the arc-shaped raised head 7 and the arc-shaped groove 8 to finish the reset operation.

In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an emergency stop switch, includes switch housing (1), its characterized in that still includes first member (3) and second member (2), first member (3) slide to set up in switch housing (1), just first member (3) and metal contact (12) contact, the one end of first member (3) with second member (2) are located one end in switch housing (1) touches and connects, the other end of second member (2) stretches out outside switch housing (1), the middle part of second member (2) is passed through the ball-type structure and is rotated the connection on the ball tile of switch housing (1).

2. The emergency stop switch according to claim 1, wherein a first mounting plate (24) is disposed in the switch housing (1) and perpendicular to the axial direction of the first rod (3), a first mounting seat (21) for placing a first spring (9) is disposed on the first mounting plate (24), the first rod (3) passes through the first mounting plate (24) and the first mounting seat (21), the first spring (9) is sleeved on the first rod (3), one end of the first spring (9) is fixedly connected to the first mounting plate (24), and the other end is positioned by a guide structure (20) disposed on the first rod (3).

3. Emergency stop switch according to claim 2, characterized in that the end of the first mounting seat (21) remote from the first mounting plate (24) is provided with a guide groove (19) cooperating with the guide structure (20), the guide structure (20) being slidably connected in the guide groove (19).

4. The emergency stop switch according to claim 2 or 3, characterized in that the guide structure (20) is a guide post or a guide strip arranged in the axial direction of the first lever (3).

5. The emergency stop switch according to claim 1, characterized in that a metal connecting piece (11) for contacting the metal contact (12) is fixedly connected to the first lever (3), and a blocking piece (10) for defining a moving position of the metal connecting piece (11) is arranged in the switch housing (1).

6. The emergency stop switch according to claim 1, wherein the ends of the first lever (3) in contact with the second lever (2) are provided with an arc-shaped projection (7) on one and an arc-shaped recess (8) on the other, the arc-shaped projection (7) and the arc-shaped recess (8) being cooperatively arranged.

7. The emergency stop switch according to claim 6, wherein the arc-shaped projection (7) is a spherical projection, the end of the rod provided with the spherical projection is provided with a fitting groove, a ball is rotatably connected in the fitting groove, and the spherical projection is a portion of the ball outside the fitting groove.

8. The emergency stop switch according to claim 1, wherein a reset groove (14) is formed in a side surface of the first rod (3), a reset rod (17) is slidably connected in the correspondingly positioned first through hole of the switch housing (1), and a reset end of the reset rod (17) is disposed in cooperation with the reset groove (14).

9. The emergency stop switch according to claim 8, wherein a second mounting seat (22) is provided on the switch housing (1), a second spring (23) is provided in the second mounting seat (22), one end of the reset rod (17) passes through the second mounting seat (22) and extends into the inner cavity of the switch housing (1), the other end is fixedly connected with a reset button (16), and the reset button (16) is slidably connected to the second mounting seat (22).

10. The emergency stop switch according to claim 8, characterized in that the reset groove (14) is of a right-angled triangle configuration in axial cross section along the first lever (3), and one leg of the right-angled triangle configuration is disposed parallel to the axial direction of the first lever (3), the other leg is disposed perpendicular to the axial direction of the first lever (3), and the right angle of the right-angled triangle configuration is disposed near the position of the second lever (2).

11. The emergency stop switch according to claim 1, characterized in that the second lever (2) is provided with a third mounting seat (5) at a position passing through the switch housing (1), and a third spring (6) for resetting the second lever (2) is provided in the third mounting seat (5).

12. The emergency stop switch according to claim 1, characterized in that a second mounting plate (18) is provided in the switch housing (1) perpendicularly to the axial direction of the first lever (3), the second mounting plate (18) being provided with a second through hole for guiding the first lever (3).

13. The emergency stop switch according to claim 1, characterized in that the first lever (3) and the second lever (2) are both arranged perpendicular to the ground.