CN216957821U

CN216957821U - Emergency stop switch

Info

Publication number: CN216957821U
Application number: CN202220825190.0U
Authority: CN
Inventors: 曾高夫
Original assignee: Ningbo Honglin Technology Co ltd
Current assignee: Ningbo Honglin Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-12
Anticipated expiration: 2032-04-11

Abstract

The utility model provides an emergency stop switch, and relates to the field of emergency stop switch devices. An emergency stop switch comprises a button and a shell, wherein the shell is sequentially provided with a connecting shaft, a transmission shaft, a clamping shaft and an isolating shaft from top to bottom, the connecting shaft is connected with the button, the transmission shaft is fixedly connected with the connecting shaft, the shell is provided with a clamping cavity, an elastic clamping piece is arranged in the clamping cavity, one end of the elastic clamping piece is clamped on the clamping shaft, the other end of the elastic clamping piece is clamped on the inner side wall of the clamping cavity, the inner walls of the shell at two sides of the isolating shaft are respectively provided with an anode and a cathode, and the bottom of the isolating shaft is provided with a connecting sheet; the utility model realizes locking and unlocking by replacing a spring and a ball used by the conventional emergency switch with the elastic card and matching the shell, simplifies the structure of the conventional emergency stop switch while stably unlocking or locking the switch, reduces the production cost, and has the advantages of less accessories during batch production, difficulty in failure and economic and safe use.

Description

Emergency stop switch

Technical Field

The utility model relates to the technical field of emergency stop switch devices, in particular to an emergency stop switch.

Background

All rotating parts in a workshop can directly or indirectly cause damage to human bodies, protective measures must be additionally arranged, and an emergency stop button is one of the rotary parts. The emergency stop switch is generally close to the main switch, and the total switch distance is far, so that when the emergency stop is needed due to danger, the time is very short, even the time of millisecond or microsecond is very important. In a short time, the machine is not stopped immediately, serious machine damage or personal injury accidents can be caused, and the machine is stopped by using an emergency stop switch or the time of personal injury is shortened, so that all the accidents are avoided.

In the prior art, the emergency stop switch is generally divided into a self-locking type emergency stop switch and a push-pull type emergency stop switch, but the locking and the unlocking of the emergency stop switch are realized by matching a spring and a ball arranged on an operating part connected with a button with a switch shell. However, the two types of emergency stop switches have different matching requirements, and the self-locking emergency stop switch requires a larger contact area between the ball and the positioning groove on the shell so as to avoid directly pulling up the operating piece through the button during unlocking; for the push-pull type emergency stop switch, if the contact area of the ball and the positioning groove is too large, the switch is locked too tightly, so that the switch is not easy to release, and the locking of the switch is difficult to release. Therefore, in actual production, the two types of emergency stop switches are required to be matched with balls with different sizes to reliably operate under the condition that the shells are the same in size. Therefore, the two types of emergency stop switches result in more parts in mass production, are prone to failure, and have higher production costs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an emergency stop switch which is simple in structure, few in accessories, low in production cost and potential safety hazard.

The embodiment of the utility model is realized by the following steps:

the embodiment of the application provides an emergency stop switch, it includes button and casing, the casing has set gradually connecting axle, transmission shaft, card axle and isolation shaft from last to down, the connecting axle with the button is connected, the transmission shaft with connecting axle fixed connection, be provided with the card chamber on the casing, the card intracavity is provided with the elasticity card, the one end card of elasticity card is in the card epaxially and the other end card is in on the inside wall in card chamber, be provided with positive pole and negative pole on the shells inner wall of isolation shaft both sides respectively, it is provided with the connection piece to separate the bottom of off-axis.

When the utility model is used, the anode and the cathode are connected into the control circuit; the control circuit is in a closed state at ordinary times, the elastic clamping piece bends at the moment, the elastic force of the elastic clamping piece faces upwards, the connecting shaft, the transmission shaft, the clamping shaft and the isolating shaft are supported to the upper limit point, the connecting piece communicates the positive pole and the negative pole, and the button is in an upward state; when emergency needs to break off the control circuit, the staff presses the button, the elastic card is stressed to bend downwards, the elastic force of the elastic card faces downwards, the connecting shaft, the transmission shaft, the clamping shaft and the isolating shaft are supported to the lower limit point, the connecting sheet moves downwards to break the connection of the anode and the cathode, the isolating shaft is arranged between the anode and the cathode, and the anode and the cathode are guaranteed to be in an open circuit state.

The utility model realizes locking and unlocking by replacing a spring and a ball used by the conventional emergency switch with the elastic card and matching the shell, simplifies the structure of the conventional emergency stop switch while stably unlocking or locking the switch, reduces the production cost, and has the advantages of less accessories during batch production, difficulty in failure and economic and safe use.

In some embodiments of the present invention, the connecting shaft is a cylindrical structure, an inner cavity is disposed at the top of the connecting shaft, a clamping groove is disposed on a side wall of the inner cavity, and a clamping rod is disposed at the bottom of the button corresponding to the clamping groove. The bottom of the button is provided with a cylindrical groove relative to the connecting shaft, so that the button is conveniently clamped with the connecting shaft; the draw-in groove divide into first draw-in groove and second draw-in groove, and first draw-in groove and second draw-in groove intercommunication, when the bottom of button and connecting axle carry out the block, protruding on the kelly glides along first draw-in groove, and after the bottom of button and connecting axle block target in place, the button rotates, and protruding on the kelly shifts to the second draw-in groove from first draw-in groove this moment, rotates the button and targets in place the back, upwards mentions the button gently, and protruding complete card on the kelly this moment is gone into the second draw-in groove.

In some embodiments of the present invention, the bottom of the inner cavity is provided with a second spring. The second spring is used for preventing the rotary button from rotating to the first clamping groove from the second clamping groove after aging and loosening after long-time use, and further preventing the button from being separated from the connecting shaft to cause failure of the rotary button. When the button is damaged or needs to be replaced for other reasons, the button is pressed firstly, the second spring is compressed, and then the button is rotated, so that the protrusion on the clamping rod enters the first clamping groove from the second clamping groove and slides out of the first clamping groove.

In some embodiments of the present invention, the transmission shaft is a cross shaft, and the housing is provided with a clamping passage corresponding to the cross shaft, and the cross shaft is slidably disposed in the clamping passage. The transmission shaft is arranged as a cross shaft and matched with the clamping channel on the shell, so that the transmission shaft cannot rotate randomly, and the internal stability of the utility model is improved. The cross shaft can slide up and down in the clamping channel and cannot swing left and right, and the cross shaft cannot swing left and right.

In some embodiments of the present invention, the connecting piece is fixedly connected to the isolation shaft. When the emergency switch is turned off, the connecting sheet is abutted to the anode and the cathode, the connecting sheet conducts the control circuit at the moment, and when the emergency switch is turned on, the connecting sheet is displaced by the displacement of the isolating shaft, so that the control circuit is turned off.

In some embodiments of the present invention, the connecting piece abuts against the isolating shaft, and a first spring is disposed below the connecting piece. The connecting sheet is made of conductive metal, and the isolating shaft is made of an insulator, so that the connecting sheet and the isolating shaft are not stably fixed, and the first spring is arranged below the connecting sheet, so that the connecting sheet and the isolating shaft can be reinforced, the connecting sheet and the isolating shaft are not easily separated, and the failure rate of the utility model is reduced.

In some embodiments of the present invention, fixing grooves are formed at two sides of the fastening shaft, and the elastic fastening piece is fastened in the fixing grooves. The two elastic clamping pieces are symmetrically arranged in the clamping cavity, and the fixing grooves on the clamping shaft can further fix the elastic clamping pieces, so that the stability of the internal structure of the elastic clamping device is improved, and the service life of the elastic clamping device is prolonged.

In some embodiments of the present invention, the positive electrode and the negative electrode have a rectangular structure, and one sides of the positive electrode and the negative electrode away from the separation shaft respectively extend out of the housing. The rectangle structure can avoid anodal and negative pole to rotate in the installation of later stage and lead to destroying the inner structure of scram switch, and the structure of rectangle can increase its area of contact with the connection piece to can stably communicate control circuit. The part extending out of the shell is connected with the control circuit.

In some embodiments of the present invention, the surface of the portion of the positive electrode and the portion of the negative electrode extending out of the housing are both provided with threads. The screw thread can make things convenient for scram switch and control circuit to be connected.

In some embodiments of the present invention, a fixing ring is disposed on the top of the housing, a plurality of threaded holes are disposed on the periphery of the housing, and bolts are disposed in the threaded holes. The fixing ring and the bolt are used for fixing the shell.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a sectional view of one side of the connecting shaft;

FIG. 3 is a sectional view of the other side of the connecting shaft;

fig. 4 is a schematic view of the internal structure of the button.

Icon: 1. a button; 2. a housing; 3. a connecting shaft; 4. a drive shaft; 5. clamping a shaft; 6. isolating the shaft; 7. a card cavity; 8. an elastic card; 9. a positive electrode; 10. a negative electrode; 11. connecting sheets; 12. a clamping rod; 13. a first card slot; 14. a second card slot; 15. a first spring; 16. a second spring; 17. and (4) fixing the ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

The embodiment provides an emergency stop switch, as shown in fig. 1-4, it includes button 1 and casing 2, casing 2 has set gradually connecting axle 3 from last to down, transmission shaft 4, card axle 5 and isolation shaft 6, connecting axle 3 is connected with button 1,

transmission shaft

4 and 3 fixed connection of connecting axle, be provided with card chamber 7 on the casing 2, be provided with elasticity card 8 in the card chamber 7, the one end card of elasticity card 8 is on card axle 5 and the other end card is on the inside wall in card chamber 7, be provided with anodal 9 and negative pole 10 on the 2 inner walls of casing of isolation shaft 6 both sides respectively, the bottom of isolation shaft 6 is provided with connection piece 11.

When the utility model is used, the utility model is connected into the control circuit through the anode 9 and the cathode 10; when the control circuit is in a closed state at ordinary times, the elastic clamping piece 8 bends upwards, the elastic force of the elastic clamping piece 8 faces upwards, the connecting shaft 3, the transmission shaft 4, the clamping shaft 5 and the isolating shaft 6 are supported to an upper limit point, the connecting piece 11 is communicated with the anode 9 and the cathode 10, and the button 1 is in an upward state; when emergency needs to disconnect the control circuit, a worker presses the button 1, the elastic clamping piece 8 is stressed to bend downwards, the elastic force of the elastic clamping piece 8 is downward, the connecting shaft 3, the transmission shaft 4, the clamping shaft 5 and the isolating shaft 6 are supported to a lower limit point, the connecting piece 11 is displaced downwards to disconnect the connection of the anode 9 and the cathode 10, the isolating shaft 6 is arranged between the anode 9 and the cathode 10 in an isolating mode, and the anode 9 and the cathode 10 are guaranteed to be in an open circuit state.

The utility model realizes locking and unlocking by replacing a spring and a ball used by the existing emergency switch with the elastic card 8 to match the shell, simplifies the structure of the existing emergency stop switch and reduces the production cost while stably unlocking or locking the switch, and has the advantages of less accessories during batch production, difficult failure and economic and safe use.

Example 2

This embodiment provides an emergency stop switch, as shown in fig. 2-4, which is substantially the same as embodiment 1, and the main difference between them is that: connecting axle 3 is cylindrical structure, and the top of connecting axle 3 is provided with the inner chamber, is provided with the draw-in groove on the lateral wall of inner chamber, and the bottom of button 1 corresponds the draw-in groove and is provided with kelly 12.

The bottom of the button 1 is provided with a cylindrical groove relative to the connecting shaft 3, so that the button is conveniently clamped with the connecting shaft 3; the draw-in groove divide into first draw-in groove 13 and second draw-in groove 14, first draw-in groove 13 and second draw-in groove 14 intercommunication, when button 1's bottom and connecting axle 3 carry out the block fashionable, protruding on the kelly 12 gliding along first draw-in groove 13, after bottom and the connecting axle 3 block of button 1 target in place, the rotation button 1, protruding on the kelly 12 at this moment shifts to second draw-in groove 14 from first draw-in groove 13, after the rotation button 1 targets in place, upwards mention button 1 gently, protruding complete card on the kelly 12 at this moment is gone into second draw-in groove 14.

Further, as shown in fig. 2 or 3, the bottom of the inner cavity is provided with a second spring 16. The second spring 16 is used for preventing the rotary button 1 from rotating from the second clamping groove 14 to the first clamping groove 13 after aging and loosening after long-time use, and further preventing the button 1 from being separated from the connecting shaft 3 to cause the failure of the utility model.

When the button 1 is damaged or needs to be replaced for other reasons, the button 1 is pressed first to compress the second spring 16, and then the button 1 is rotated, so that the protrusion on the clamping rod 12 enters the first clamping groove 13 from the second clamping groove 14 and slides out of the first clamping groove 13.

Furthermore, the transmission shaft 4 is a cross shaft, a clamping channel is arranged on the shell 2 corresponding to the cross shaft, and the cross shaft is arranged in the clamping channel in a sliding manner.

The transmission shaft 4 is arranged as a cross shaft and is matched with the clamping channel on the shell 2, so that the transmission shaft 4 cannot rotate randomly, and the internal stability of the utility model is improved. The cross shaft can slide up and down in the clamping channel and cannot swing left and right, and the cross shaft cannot swing left and right.

Example 3

This embodiment provides an emergency stop switch, which is substantially the same as embodiment 1 or embodiment 2, and the main difference between them is that: the connecting piece 11 is fixedly connected with the isolating shaft 6.

When the emergency switch is turned off, the connection piece 11 abuts against the positive electrode 9 and the negative electrode 10, the connection piece 11 turns on the control circuit, and when the emergency switch is turned on, the connection piece 11 is displaced by the displacement of the isolation shaft 6, thereby turning off the control circuit.

Further, as shown in fig. 1, the coupling piece 11 abuts against the spacer shaft 6, and a first spring 15 is provided below the coupling piece 11.

Because the connecting piece 11 is made of conductive metal and the isolating shaft 6 is made of an insulator, the fixed connection between the connecting piece 11 and the isolating shaft is not stable enough, and the first spring 15 is arranged below the connecting piece 11, so that the connecting piece 11 and the isolating shaft 6 can be reinforced, the connecting piece 11 and the isolating shaft 6 are not easy to separate, and the failure rate of the utility model is further reduced.

Further, as shown in fig. 1, fixing grooves are formed on two sides of the clamping shaft 5, and the elastic clamping piece 8 is clamped in the fixing grooves.

Two elastic clamping pieces 8 are symmetrically arranged in the clamping cavity 7, and the fixing grooves on the clamping shaft 5 can further fix the elastic clamping pieces 8, so that the stability of the internal structure of the utility model is improved, and the service life of the utility model is prolonged.

Example 4

This embodiment provides an emergency stop switch, as shown in fig. 1, which is substantially the same as any of embodiments 1-3, and the main difference between them is that: the positive electrode 9 and the negative electrode 10 are rectangular structures, and one sides of the positive electrode 9 and the negative electrode 10, which are far away from the isolating shaft 6, extend out of the shell 2 respectively. The rectangle structure can avoid anodal 9 and negative pole 10 to rotate in the installation of later stage and lead to destroying the inner structure of scram switch, and the structure of rectangle can increase its area of contact with connection piece 11 to can stably communicate control circuit. The part extending out of the housing 2 is a part to which a control circuit is connected.

Further, the partial surfaces of the positive electrode 9 and the negative electrode 10 extending out of the case 2 are each provided with a screw thread. The screw thread can make things convenient for scram switch and control circuit to be connected.

Further, as shown in fig. 1, a fixing ring 17 is disposed on the top of the housing 2, a plurality of threaded holes are disposed on the periphery of the housing 2, and bolts are disposed in the threaded holes. The fixing ring 17 and the bolts are used to fix the housing 2.

In summary, the embodiments of the present invention provide an emergency stop switch, which has at least the following advantages or beneficial effects:

the utility model realizes locking and unlocking by replacing a spring and a ball used by the existing emergency switch with the elastic clamping piece 8 to match with the shell, simplifies the structure of the existing emergency stop switch and reduces the production cost while stably unlocking or locking the switch, and has the advantages of few accessories in batch production, difficult failure and economic and safe use.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an emergency stop switch, its characterized in that, includes button and casing, the casing has set gradually connecting axle, transmission shaft, card axle and isolation shaft from last to down, the connecting axle with the button is connected, the transmission shaft with connecting axle fixed connection, be provided with the card chamber on the casing, the card intracavity is provided with the elasticity card, the one end card of elasticity card is in the card epaxial and the other end card is in on the inside wall in card chamber, be provided with positive pole and negative pole on the shells inner wall of isolation shaft both sides respectively, the bottom of isolating the axle is provided with the connection piece.

2. The scram switch of claim 1, wherein the connecting shaft is cylindrical, an inner cavity is formed at the top of the connecting shaft, a clamping groove is formed in the side wall of the inner cavity, and a clamping rod is arranged at the bottom of the button corresponding to the clamping groove.

3. The scram switch of claim 2, wherein the bottom of the inner chamber is provided with a second spring.

4. The scram switch of claim 1, wherein the transmission shaft is a cross shaft, and the housing is provided with a clamping channel corresponding to the cross shaft, and the cross shaft is slidably disposed in the clamping channel.

5. The scram switch of claim 1, wherein the connecting piece is fixedly connected to the isolating shaft.

6. The scram switch of claim 1, wherein the connecting piece abuts against the isolating shaft, and a first spring is arranged below the connecting piece.

7. The scram switch of claim 1, wherein fixing grooves are formed on both sides of the latch shaft, and the elastic latch is latched in the fixing grooves.

8. The scram switch of claim 1, wherein the positive electrode and the negative electrode are rectangular in configuration, and the sides of the positive electrode and the negative electrode away from the isolating shaft extend out of the housing respectively.

9. The scram switch of claim 8, wherein the positive electrode and the negative electrode are threaded on the surface of the portion extending out of the housing.

10. The emergency stop switch according to claim 1, wherein a fixing ring is disposed on a top of the housing, a plurality of threaded holes are disposed on a peripheral side of the housing, and bolts are disposed in the threaded holes.