CN107342181B

CN107342181B - Emergency stop button

Info

Publication number: CN107342181B
Application number: CN201710764854.0A
Authority: CN
Inventors: 张斌; 高建勇
Original assignee: Wenzhou Tenghuang Electric Co ltd
Current assignee: Wenzhou Tenghuang Electric Co ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2020-04-21
Anticipated expiration: 2037-08-30
Also published as: CN107342181A

Abstract

The invention discloses an emergency stop button, wherein a core, a push rod, a transmission shaft, a button reset structure and a core reset structure are arranged in a shell; the core is movably arranged, one end of the core is connected with the button, and the other end of the core is abutted against the push rod; the push rod part is positioned below the core and is pushed by the core to axially slide, and a radial clamping structure is arranged between the push rod and the shell; the outer surface of the core is provided with a stroke hole I along the radial direction, the stroke hole I comprises a locking part, an initial part and a bending channel for connecting the locking part and the initial part, and the locking part is positioned above the initial part; the channel wall of the bending channel connected with the positioning hole is obliquely arranged; the transmission shaft penetrates through the shell and the stroke hole I, and the channel wall of the bending channel connected with the positioning hole and the transmission shaft are in inclined surface transmission to enable the core to rotate when moving downwards; the button resetting structure is used for driving the button to reset; the core resetting structure is used for driving the core to reset; the invention has the characteristics of simple and reasonable transmission structure, quick response and the like.

Description

Emergency stop button

Technical Field

The invention relates to an emergency stop button.

Background

The scram button may also be referred to as an "emergency stop button," which is referred to in the industry as a scram button for short.

The conventional emergency stop button usually comprises a self-locking structure inside, namely, when the button is pressed down, the button keeps the current position under the action of the self-locking structure. When the button needs to be released, the button is rotated clockwise, so that the self-locking structure is released, and the button returns.

This principle is used to activate and unlock the button in both the patent publication CN106229186 and the patent publication CN 206236568.

Taking CN206236568 as an example, the structure of the button comprises a housing, an operating part and a push rod which are arranged in the housing, the button further comprises a button block which is arranged in a button cylinder and is matched with the operating part, one end of the push rod penetrates through the operating part and is fixedly connected with the button block of the button, the other end of the push rod is in limit matching with the operating part, an elastic clamping piece which is matched with a clamping table on the inner side wall of the housing is arranged on the operating part, a spring is arranged between the button and the housing, when the button is pressed, the operating part is driven by the button block to slide so that the elastic clamping piece is locked with the clamping table, the elastic clamping piece is unlocked by rotating the button to reset, the spring drives the. The emergency stop button realizes pressing and resetting through the matching of the button, the operating part and the push rod and the matching of the elastic clamping piece and the clamping table.

In the actual use process of the emergency stop button, the lower part of the push rod is connected with a metal sheet, the metal sheet is also arranged in the button box of the emergency stop button, and when the button is pressed down, the two metal sheets are attached to each other, so that the emergency stop button is formally started (the two metal sheets are collided to realize circuit conduction). When the emergency stop button needs to be released, the button is rotated so as to separate the two metal sheets. Because the push rod and the button adopt interference fit in the patent, the push rod and the button are linked, namely the push rod can also rotate when the button is unlocked, and therefore the metal sheet below the push rod can rub with the metal sheet in the button box to damage the metal sheet and influence the service life of the emergency stop button. If a radial clamping structure is arranged between the push rod and the shell to prevent the push rod from rotating, the emergency stop button cannot be rotated and unlocked (because the emergency stop button in the patent is directly locked with the push rod when reaching a locking position, and the push rod can be unlocked only by rotating the push rod when unlocking).

Therefore, how to design a scram button which can realize rotary unlocking and can prevent the push rod from rotating is a problem to be solved urgently.

Disclosure of Invention

The invention mainly solves the technical problem of providing an emergency stop button.

The technical scheme adopted by the invention for solving the technical problems is as follows: an emergency stop button comprises a shell and a button, wherein the button is sleeved at the top end of the shell and movably matched with the shell; wherein, the shell is provided with a core, a push rod, a transmission shaft, a button reset structure and a core reset structure; the core is movably arranged, one end of the core is connected with the button, and the other end of the core is abutted against the push rod; the push rod part is positioned below the core and is pushed by the core to axially slide; the outer surface of the core is provided with a stroke hole I along the radial direction, the stroke hole I comprises a locking part, an initial part and a bending channel for connecting the locking part and the initial part, and the locking part is positioned above the initial part; the channel wall of the bending channel connected with the initial part is obliquely arranged; the transmission shaft penetrates through the shell and the stroke hole I, the transmission shaft is positioned in the initial part when in the initial position, the transmission shaft is positioned in the locking part when in the locking position, and the channel wall of the bending channel connected with the initial part and the transmission shaft are in inclined surface transmission to enable the core to rotate when moving downwards; the button resetting structure is used for driving the button to reset; the core is a hollow structure, the push rod part extends into the core, the extending part is provided with a stroke hole II, the opening direction of the stroke hole II is the radial direction of the push rod, and the length direction of the stroke hole II is parallel to the axial direction of the push rod; the transmission shaft penetrates into the stroke hole II to form a radial clamping structure of the push rod and the shell.

The design of the structure is adopted, because the core is movably arranged, one end of the core is connected with the button piece, a stroke hole I is formed in the core, when the emergency stop button needs to be used, the button is pressed down, the core is stressed by a downward force under the action of an external force, the inclined channel wall can act on the transmission shaft to enable the core to rotate while moving downwards, so that the push rod is pushed to extend out of the shell, the core resetting structure can store the force, when the bending channel moves to the position where the core is connected with the locking part, the core reversely rotates under the action of the restoring force of the core resetting structure to enable the transmission shaft to be clamped at the locking part, and the push rod reaches the lowest position at the moment, namely. Compared with the prior art, the structure has the advantages that the push rod cannot rotate radially and can only move axially, so that the metal sheet below the push rod and the metal sheet in the button box are prevented from rotating and rubbing, the metal sheet is protected, and the service life of the emergency stop button is prolonged. Meanwhile, the emergency stop button is locked by the core and the fixed shaft and has no relation with the push rod, so that the push rod can be arranged into an axial moving structure. Because the offer direction of stroke hole II is the radial direction of push rod, because the transmission shaft penetrates shell and stroke hole II, consequently the core can not drive the push rod pivoted at the rotation in-process, because the length direction of stroke hole II is parallel with the axial direction of push rod for the core can promote the push rod and take place axial displacement at the in-process that moves down. The structure is simple, the assembly is convenient, the matching of the push rod and the core is more compact, and the occupied space is reduced.

The stroke hole II is a waist-shaped hole, the size of the circular part at the upper end of the waist-shaped hole is larger than the sizes of the rest positions of the waist-shaped hole, and the size of the transmission shaft is matched with the sizes of the rest positions of the waist-shaped hole.

The two ends of the transmission shaft are sleeved with fixing pieces, the circular part at the upper end of the waist-shaped hole can be penetrated by the fixing pieces, and the size of the fixing pieces is larger than that of the positions of the other positions of the waist-shaped hole.

This kind of structural design, the transmission shaft of being convenient for penetrates by the circular part of the upper end in waist shape hole when the installation, and when removing along with waist shape hole, the mounting can be located by all the other positions in waist shape hole, and the design of this kind of structure prevents that the transmission shaft from sliding along axial direction, plays spacing effect to improve holistic stability.

The shape of the transmission shaft can be a cylinder or a polygonal prism except a cube.

The polygonal prisms except the cube include a cuboid, a triangular prism body, a hexagonal prism body, a pentagonal prism body and the like, and all the shapes can be used for realizing extrusion with the inclined channel wall, so that the core can move downwards while rotating.

The push rod comprises a boss part and a matching part, the matching part penetrates into the core, and the core can rotate relative to the matching part; the boss part is located at the lower end face of the core and is abutted against the core.

The design of the structure is beneficial to the push rod part to extend into the core, and the core can be propped against the boss to realize the axial movement of the push rod.

The push rod connecting structure comprises a core, a push rod and a connecting assembly, wherein the connecting assembly comprises a gasket and a screw, an annular bulge is arranged on the inner wall of the core, the gasket is arranged on the upper surface of the annular bulge, and the screw penetrates through the gasket and the hollow part of the annular bulge to be connected with the push rod.

The design of the structure enables the push rod to be connected with the annular bulge of the core through the gasket and the screw, so that the stability of axial movement of the push rod can be improved, and the assembly of the push rod and the core is facilitated. Because the gasket is arranged on the upper surface of the annular bulge, and the screw penetrates through the gasket and the hollow part of the annular bulge, the structure can not cause the push rod to rotate when the core rotates. Meanwhile, when the core is forced to return upwards, the push rod can be driven to return due to the action of the annular boss, the gasket and the screw.

The button comprises a main body part, a barrel-shaped part I and a barrel-shaped part II, wherein the barrel-shaped part I and the barrel-shaped part II are arranged below the main body part, the barrel-shaped part II is located in the barrel-shaped part I, the barrel-shaped part I is used for being sleeved on the surface of a shell, and the barrel-shaped part II is used for enabling a core to penetrate into the shell to be matched with the core.

The main body part is equivalent to a cap of a button and is used for facilitating the pressing and the rotation of a worker; the barrel-shaped part I is designed to be sleeved on the surface of the shell, so that the stability between the button and the shell is improved; and the function of the barrel-shaped part II is to facilitate the core to penetrate into and match with the barrel-shaped part, so that the stability between the core and the button is improved.

The button part resetting structure is a torsion spring II, the torsion spring II is sleeved on the barrel-shaped part II, one end of the torsion spring II is connected with the button part, the other end of the torsion spring II is connected with the shell, the torsion spring II is compressed to provide axial restoring force when the button part moves downwards, and the torsion spring II deforms to provide restoring force in the rotating direction when the button part rotates.

The torsion spring II is sleeved on the barrel-shaped part II, one end of the torsion spring II is connected with the button, the other end of the torsion spring II is connected with the shell, when the button is pressed down under stress, the torsion spring II can be compressed axially, and when the lower pressure is relieved, the torsion spring II can generate axial restoring force to drive the button to reset; when the button is stressed to rotate, the torsion spring II can deform in the rotating direction, and when the rotating external force is removed, the torsion spring II can generate restoring force in the rotating direction to drive the button to reset. The structure only needs to sleeve the torsion spring II on the barrel-shaped part II and then the two ends of the torsion spring II are respectively connected with the button piece and the shell, and the structure has the characteristics of simple structure, convenience in assembly and the like.

Wherein, core reset structure is torsional spring I, and I cover of torsional spring is established on the core, and one end links to each other with the core, and other end shell links to each other, and I deformation of torsional spring produce the direction of rotation restoring force when the core takes place to rotate, and I compression of torsional spring produce axial restoring force when the core moves down.

Torsional spring I establishes on the core, and one end links to each other with the core, and the other end links to each other with the shell, receives external force limit rotation when the core, during limit pushes down, axial compression and the deformation of rotation direction can take place for torsional spring I, progressively rotate and move down along with the core, when the passageway of bending moved to the handing-over position department with the sticking department, torsional spring I can produce the restoring force of rotation direction and make the core counter-rotation, guarantee that transmission shaft card goes into in the locking portion, torsional spring I still is in axial compression state this moment. When the button rotates under the action of external force to make the transmission shaft be separated from locking portion, the core is driven to move upwards and return under the action of axial restoring force of torsional spring I. The structure realizes the axial direction reset and the rotation direction reset of the core by using the torsion spring I, and has the characteristics of simple structure, convenient assembly and the like.

Wherein, be equipped with the fixture block on II inner walls of tubbiness portion, the draw-in groove has been seted up to core corresponding position department, and the fixture block stretches into the draw-in groove, realizes the core motion through fixture block touching draw-in groove wall.

The design of the clamping block and the clamping groove is beneficial to realizing corresponding movement by the clamping block touching the clamping groove wall when the button is rotated or pressed down, and the transmission structure is simple.

The size of the clamping groove is larger than that of the clamping block, and the clamping block can move in the clamping groove; the upper end surface of the core is provided with a mounting groove which is communicated with the clamping groove, a guide bulge is arranged at the position of the mounting groove close to the clamping groove, and the height of the guide bulge is lower than that of the mounting groove; the surface of the guide protrusion facing the upper end surface of the core is an inclined surface, and the height of the inclined surface is gradually increased from the mounting groove to the clamping groove; the fixture block is provided with a guide surface matched with the inclined surface.

The design of the mounting groove, the guide protrusion and the guide surface of the clamping block is beneficial to the clamping block to be mounted in the clamping groove, and the clamping fixture has the advantages of being convenient to assemble and the like.

Drawings

FIG. 1 is an exploded view of example 1 of the present invention;

FIG. 2 is a perspective view of a partial cross-sectional view of embodiment 1 of the present invention;

FIG. 3 is a schematic view of the structure of the housing in example 1 of the present invention;

FIG. 4 is a schematic structural view of a button in embodiment 1 of the present invention;

FIG. 5 is a schematic view showing the engagement of a transmission shaft, a core and a push rod in embodiment 1 of the present invention;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic view showing the structure of a core in embodiment 1 of the present invention;

fig. 8 is a schematic view of a push rod of embodiment 1 of the present invention.

Detailed Description

Example 1:

referring to fig. 1-8, an emergency stop button comprises a shell 1, a button 2, a core 3, a push rod 4, a transmission shaft 5, a button reset structure and a core reset structure.

The shell 1 is a hollow structure, a mounting cavity 11 is formed at the upper part of the shell 1, and a positioning hole I12 is formed in the bottom wall of the mounting cavity 11.

The button 2 comprises a main body part 21, a barrel part I22 and a barrel part II 23, wherein the barrel part II 23 is positioned in the barrel part I22, and the barrel part II 23 and the barrel part I22 are both arranged on the lower end face of the main body part 21. The lower end face of the main body part 21 is provided with an installation block 24, the installation block 24 is positioned in the area surrounded by the barrel-shaped part I22, and a positioning hole II 25 is formed in the installation block 24.

The barrel-shaped part I22 is used for being sleeved on the surface of the shell 1, the button 2 is movably arranged, and the movable arrangement means that the button 2 can move in the axial direction and can also rotate in the radial direction.

The button reset structure is a torsion spring II 6, the torsion spring II 6 is sleeved on the barrel-shaped part II 23, one end of the torsion spring II 6 extends into the positioning hole II 25 to be connected with the button 2, and the other end of the torsion spring II 6 extends into the positioning hole I12 to be connected with the shell 1. The torsion spring II 6 is arranged to provide an axial restoring force when the button 2 moves down and a rotational restoring force when the button 2 rotates.

The core 3 is movably arranged in the shell 1, wherein the movable arrangement means that the core 3 can move axially and can also rotate in the radial direction. The upper outer wall of the core 3 is provided with a clamping groove 31, the upper end face of the core 3 is provided with a mounting groove 32 which is communicated with the clamping groove 31, a guide protrusion 33 is arranged at the position where the mounting groove 32 is close to the clamping groove 31, and the height of the guide protrusion 33 is smaller than the depth of the mounting groove 32. The surface of the guide projection 33 facing the upper end surface of the core 3 is an inclined surface, and the height of the inclined surface is gradually increased from the mounting groove 32 to the clamping groove 31. The inner wall of the barrel-shaped part II 23 is provided with a clamping block 26, the clamping block 26 is provided with a guide surface 27, the guide surface 27 is in an inclined plane shape, during installation, the clamping block 26 extends into the installation groove 32, the clamping block 26 extends into the clamping groove 31 beyond the guide protrusion 33 through the extrusion of the inclined plane, and the button piece 2 is connected with the core 3. Here, the size of the catching groove 31 is larger than that of the latch 26 so that the latch 26 can move in the catching groove 31. When the button 2 moves, the core 3 is caused to move by touching the wall of the clamping groove 31 through the clamping block 26; that is, when the button 2 is rotated, the latch 26 contacts the side wall of the slot 31 to cause the core 3 to rotate, and when the button 2 moves downward, the latch 26 contacts the bottom wall of the slot 31 to cause the core 3 to move downward.

The middle lower part of the core 3 is provided with a stroke hole I34, and the stroke hole I34 is arranged along the radial direction. The stroke hole i 34 includes a locking portion 34c, an initial portion 34a, and a bent passage 34b connecting the two, the locking portion 34c being located above the initial portion 34 a. The bending channel 34b means that the channel has a bending angle, and the channel wall of the connection portion of the bending channel 34b and the locking portion 34c is horizontal, that is, the channel wall is parallel to the radial direction of the core 3. The channel wall of the bending channel 34b connected to the initial portion 34a is inclined and the direction of the inclination is inclined upward, where the core 3 is rotated by the action of the inclined channel wall and the transmission shaft 5 when the core 3 is subjected to a downward force. The channel walls form an angle a with the radial direction of the core 3, where the angle a may be 20-70, in this embodiment 40.

An outer edge 35 is arranged on the upper middle part of the core 3, a positioning hole III 36 is formed in the outer edge 35, and a positioning hole IV 13 is formed in the shell 1. The core reset structure is torsional spring I7, and torsional spring I7 cover is established on the well lower part of core 3, and the one end of torsional spring I7 stretches into in locating hole III 36 and links to each other with core 3, and the other end of torsional spring I7 stretches into in locating hole IV 13 and links to each other with shell 1. The torsion spring II 6 is provided here to act such that when the core 3 moves down and rotates, the torsion spring I7 compresses axially to generate an axial restoring force and the torsion spring I7 rotates to generate a rotational restoring force.

The push rod 4 includes a boss portion 41 and an engaging portion 42, the engaging portion 42 penetrates into the core 3, and the core 3 is rotatable with respect to the engaging portion 42. The boss portion 41 is larger in size than the fitting portion 42, and the boss portion 41 is located at the lower end surface of the core 3 against the core 3. The connecting assembly comprises a gasket 8 and a screw 9, and a through hole is formed in the axis of the core 3, so that the core 3 is of a hollow structure. An annular protrusion 37 is provided on the inner wall of the core 3, the gasket 8 is provided on the upper surface of the annular protrusion 37, and the screw 9 is connected to the fitting portion 42 through the gasket 8 and the hollow portion of the annular protrusion 37. The structure can not drive the push rod 4 to rotate when the core 3 rotates, and can drive the push rod 4 to move when the core 3 moves axially.

The lower part of the shell 1 is provided with a transmission hole 14, and the transmission hole 14 is arranged along the radial direction of the shell 1. The matching part 42 is provided with a stroke hole II 43, the opening direction of the stroke hole II 43 is the radial direction of the matching part 42, and the length direction of the stroke hole II 43 is parallel to the axial direction of the push rod 4. The stroke hole II 43 is a kidney-shaped hole, two ends of the kidney-shaped hole are circular parts, the radius of the circular part at the upper end is larger than that of the rest part of the stroke hole II 43, and the size of the transmission shaft 5 is matched with that of the circular part at the lower end. Fixing pieces 51 are sleeved at two ends of the transmission shaft 5, the circular part at the upper end of the waist-shaped hole can be penetrated by the fixing pieces 51, and the size of the fixing pieces 51 is larger than that of the rest positions of the waist-shaped hole. When installed, the fixing piece 51 passes through the stroke hole ii 43, and the two fixing pieces 51 are respectively located in the transmission holes 14. This kind of structural design, when moving along with stroke hole II 43, mounting 51 can be located stroke hole II 43 other positions by side, and the design of this kind of structure prevents that the transmission shaft from sliding along axial direction, plays spacing effect to improve holistic stability.

The drive shaft 5 is cylindrical in shape and in this embodiment is cylindrical. Besides, it may be a polygonal prism other than a cube, such as a rectangular parallelepiped, a triangular prism, a hexagonal prism, a pentagonal prism, etc., and by using the above shapes, it is possible to realize pressing with the inclined channel wall, and to realize downward movement of the core 3 while rotating.

The transmission shaft 5 sequentially penetrates through the transmission hole 14, the stroke hole I34 and the stroke hole II 43, and the stroke hole II 43 and the transmission shaft 5 form a radial clamping structure, so that the push rod 4 cannot rotate in the rotation process of the core 3. In the initial state, the propeller shaft 5 is located in the initial portion 34a of the stroke hole i 34 and the circular portion of the lower end of the stroke hole ii 43.

Here, the transmission hole 14 is opened through both side walls of the housing 1, the stroke hole ii 43 is opened through both side walls of the fitting portion 42, and the stroke hole i 34 is opened through both side walls of the core 3.

The working principle of the structure is as follows: when the emergency stop button needs to be started, when a worker presses the button 2, the core 3 generates a downward force under the action of the button 2, because the transmission shaft 5 is positioned in the initial part 34a at the moment, the transmission shaft 5 is tightly attached to the bending channel 34b after the core 3 is subjected to the downward force, because the channel wall of the bending channel 34b is obliquely arranged, the core 3 moves downwards and rotates towards one direction, the push rod 4 is driven by the downward movement of the core 3 to move downwards, the torsion spring I7 axially compresses (generates axial restoring force) and rotates (generates restoring force in the rotating direction), when the core 3 rotates to the position where the bending channel 34b is connected with the locking part 34c, the restoring force in the rotating direction of the torsion spring I7 can cause the core 3 to reversely rotate so that the transmission shaft 5 is clamped into the locking part 34c, the torsion spring I7 is still in the axially compressed state, and the push rod 4 exceeds the shell to reach the final, this time the locked position.

When the emergency stop button needs to be released, the core 3 is rotated by rotating the button piece 2, the transmission shaft 5 is separated from the locking part 34c, and when the transmission shaft 5 gradually moves to the bending angle position of the bending channel 34b, the axial restoring force of the torsion spring I7 drives the core 3 to move upwards, so that the push rod is retracted into the shell 1.

With the structure, the push rod 4 can only realize axial movement at all times no matter the scram button is started or released.

Claims

1. An emergency stop button comprises a shell and a button, wherein the button is sleeved at the top end of the shell and movably matched with the shell; the method is characterized in that: the shell is internally provided with a core, a push rod, a transmission shaft, a button reset structure and a core reset structure; the core is movably arranged, one end of the core is connected with the button, and the other end of the core is abutted against the push rod; the push rod part is positioned below the core and is pushed by the core to axially slide; the outer surface of the core is provided with a stroke hole I along the radial direction, the stroke hole I comprises a locking part, an initial part and a bending channel for connecting the locking part and the initial part, and the locking part is positioned above the initial part; the channel wall of the bending channel connected with the initial part is obliquely arranged; the transmission shaft penetrates through the shell and the stroke hole I, the transmission shaft is positioned in the initial part when in the initial position, the transmission shaft is positioned in the locking part when in the locking position, and the channel wall of the bending channel connected with the initial part and the transmission shaft are in inclined surface transmission to enable the core to rotate when moving downwards; the button resetting structure is used for driving the button to reset; the core is a hollow structure, the push rod part extends into the core, the extending part is provided with a stroke hole II, the opening direction of the stroke hole II is the radial direction of the push rod, and the length direction of the stroke hole II is parallel to the axial direction of the push rod; the transmission shaft penetrates into the stroke hole II to form a radial clamping structure of the push rod and the shell.

2. The scram button of claim 1, wherein: the stroke hole II is a waist-shaped hole, the size of the circular part at the upper end of the waist-shaped hole is larger than the sizes of the rest positions of the waist-shaped hole, and the size of the transmission shaft is matched with the sizes of the rest positions of the waist-shaped hole.

3. The scram button of claim 1, wherein: the push rod comprises a boss part and a matching part, the matching part penetrates into the core, and the core can rotate relative to the matching part; the boss part is located at the lower end face of the core and is abutted against the core.

4. The scram button as set forth in claim 2 or 3, wherein: the connecting assembly comprises a gasket and a screw, an annular bulge is arranged on the inner wall of the core, the gasket is arranged on the upper surface of the annular bulge, and the screw penetrates through the gasket and the hollow part of the annular bulge to be connected with the push rod.

5. The scram button of claim 1, wherein: the button piece comprises a main body part, a barrel-shaped part I and a barrel-shaped part II, wherein the barrel-shaped part I and the barrel-shaped part II are arranged below the main body part, the barrel-shaped part II is located in the barrel-shaped part I, the barrel-shaped part I is used for being sleeved on the surface of the shell, and the barrel-shaped part II is used for enabling the core to penetrate into the shell to be matched with the.

6. The scram button of claim 5, wherein: the button part resetting structure is a torsion spring II, the torsion spring II is sleeved on the barrel-shaped part II, one end of the torsion spring II is connected with the button part, the other end of the torsion spring II is connected with the shell, when the button part moves downwards, the torsion spring II is compressed to provide axial restoring force, and when the button part rotates, the torsion spring II deforms to provide rotating direction restoring force.

7. The scram button as recited in claim 1 or 2 or 3 or 5 or 6, wherein: the core reset structure is a torsion spring I, the torsion spring I is sleeved on the core, one end of the torsion spring I is connected with the core, the shell at the other end of the torsion spring I is connected, when the core rotates, the torsion spring I deforms to generate restoring force in the rotating direction, and when the core moves downwards, the torsion spring I compresses to generate restoring force in the axial direction.

8. The scram button of claim 5 or 6, wherein: the inner wall of the barrel-shaped part II is provided with a clamping block, the corresponding position of the core is provided with a clamping groove, the clamping block extends into the clamping groove, and the core moves by touching the clamping groove wall through the clamping block.

9. The scram button of claim 8, wherein: the size of the clamping groove is larger than that of the clamping block, and the clamping block can move in the clamping groove; the upper end surface of the core is provided with a mounting groove which is communicated with the clamping groove, a guide bulge is arranged at the position of the mounting groove close to the clamping groove, and the height of the guide bulge is lower than that of the mounting groove; the surface of the guide protrusion facing the upper end surface of the core is an inclined surface, and the height of the inclined surface is gradually increased from the mounting groove to the clamping groove; the fixture block is provided with a guide surface matched with the inclined surface.